polkitAgent: Do not set initial focus in the password entry

The password entry can be hidden if the user has no password set, but setting the initial focus to it will result in the entry responding to the "activate" and signals. Besides, with the logic that the dialog follows, setting the initial focus in the entry is redundant, because the focus is also set in the entry upon showing it.
polkitAgent: Use dialog as confirmation when the user has no password
2018-02-14 17:29:40 +01:00 · 2018-02-14 17:29:33 +01:00
238 changed files with 16090 additions and 22747 deletions
--- a/0
+++ b/0
--- a/HACKING.md
+++ b/HACKING.md
@ -1,16 +1,19 @@
-# Coding guide
+Coding guide
+============

 Our goal is to have all JavaScript code in GNOME follow a consistent style. In
 a dynamic language like JavaScript, it is essential to be rigorous about style
 (and unit tests), or you rapidly end up with a spaghetti-code mess.

-## A quick note
+A quick note
+------------

 Life isn't fun if you can't break the rules. If a rule seems unnecessarily
 restrictive while you're coding, ignore it, and let the patch reviewer decide
 what to do.

-## Indentation and whitespace
+Indentation and whitespace
+--------------------------

 Use four-space indents. Braces are on the same line as their associated
 statements.  You should only omit braces if *both* sides of the statement are
@ -19,7 +22,7 @@ on one line.
 * One space after the `function` keyword.  No space between the function name
 * in a declaration or a call.  One space before the parens in the `if`
 * statements, or `while`, or `for` loops.
-```javascript
+
    function foo(a, b) {
        let bar;

@ -36,20 +39,22 @@ on one line.
            print(20);
        }
    }
-```

-## Semicolons
+Semicolons
+----------

 JavaScript allows omitting semicolons at the end of lines, but don't. Always
 end statements with a semicolon.

-## js2-mode
+js2-mode
+--------

 If using Emacs, do not use js2-mode. It is outdated and hasn't worked for a
 while. emacs now has a built-in JavaScript mode, js-mode, based on
 espresso-mode. It is the de facto emacs mode for JavaScript.

-## File naming and creation
+File naming and creation
+------------------------

 For JavaScript files, use lowerCamelCase-style names, with a `.js` extension.

@ -62,13 +67,14 @@ library name followed by a dash, e.g. `shell-app-system.c`. Create a
 `-private.h` header when you want to share code internally in the
 library. These headers are not installed, distributed or introspected.

-## Imports
+Imports
+-------

 Use UpperCamelCase when importing modules to distinguish them from ordinary
 variables, e.g.
-```javascript
+
    const GLib = imports.gi.GLib;
-```
+
 Imports should be categorized into one of two places. The top-most import block
 should contain only "environment imports". These are either modules from
 gobject-introspection or modules added by gjs itself.
@ -79,7 +85,7 @@ e.g. `imports.ui.popupMenu`.

 Each import block should be sorted alphabetically. Don't import modules you
 don't use.
-```javascript
+
    const GLib = imports.gi.GLib;
    const Gio = imports.gi.Gio;
    const Lang = imports.lang;
@ -89,22 +95,23 @@ don't use.
    const Params = imports.misc.params;
    const Tweener = imports.ui.tweener;
    const Util = imports.misc.util;
-```
+
 The alphabetical ordering should be done independently of the location of the
 location. Never reference `imports` in actual code.

-## Constants
+Constants
+---------

 We use CONSTANTS_CASE to define constants. All constants should be directly
 under the imports:
-```javascript
-    const MY_DBUS_INTERFACE = 'org.my.Interface';
-```

-## Variable declaration
+    const MY_DBUS_INTERFACE = 'org.my.Interface';
+
+Variable declaration
+--------------------

 Always use either `const` or `let` when defining a variable.
-```javascript
+
    // Iterating over an array
    for (let i = 0; i < arr.length; ++i) {
        let item = arr[i];
@ -114,32 +121,31 @@ Always use either `const` or `let` when defining a variable.
    for (let prop in someobj) {
        ...
    }
-```

 If you use "var" then the variable is added to function scope, not block scope.
 See [What's new in JavaScript 1.7](https://developer.mozilla.org/en/JavaScript/New_in_JavaScript/1.7#Block_scope_with_let_%28Merge_into_let_Statement%29)

-## Classes
+Classes
+-------

 There are many approaches to classes in JavaScript. We use our own class framework
 (sigh), which is built in gjs. The advantage is that it supports inheriting from
 GObjects, although this feature isn't used very often in the Shell itself.
-```javascript
+
    var IconLabelMenuItem = new Lang.Class({
        Name: 'IconLabelMenuItem',
        Extends: PopupMenu.PopupMenuBaseItem,

-        _init(icon, label) {
+        _init: function(icon, label) {
            this.parent({ reactive: false });
            this.actor.add_child(icon);
            this.actor.add_child(label);
        },

-        open() {
+        open: function() {
            log("menu opened!");
        }
    });
-```

 * 'Name' is required. 'Extends' is optional. If you leave it out, you will
  automatically inherit from Object.
@ -156,34 +162,35 @@ GObjects, although this feature isn't used very often in the Shell itself.
  still a giant function call, even though it may resemble a more
  conventional syntax.

-## GObject Introspection
+GObject Introspection
+---------------------

 GObject Introspection is a powerful feature that allows us to have native
 bindings for almost any library built around GObject. If a library requires
 you to inherit from a type to use it, you can do so:
-```javascript
+
    var MyClutterActor = new Lang.Class({
        Name: 'MyClutterActor',
        Extends: Clutter.Actor,

-        vfunc_get_preferred_width(actor, forHeight) {
+        vfunc_get_preferred_width: function(actor, forHeight) {
             return [100, 100];
        },

-        vfunc_get_preferred_height(actor, forWidth) {
+        vfunc_get_preferred_height: function(actor, forWidth) {
             return [100, 100];
        },

-        vfunc_paint(actor) {
+        vfunc_paint: function(actor) {
             let alloc = this.get_allocation_box();
             Cogl.set_source_color4ub(255, 0, 0, 255);
             Cogl.rectangle(alloc.x1, alloc.y1,
                            alloc.x2, alloc.y2);
        }
    });
-```

-## Translatable strings, `environment.js`
+Translatable strings, `environment.js`
+--------------------------------------

 We use gettext to translate the GNOME Shell into all the languages that GNOME
 supports. The `gettext` function is aliased globally as `_`, you do not need to
@ -197,7 +204,8 @@ and "double quotes" for strings that the user may see. This allows us to
 quickly find untranslated or mistranslated strings by grepping through the
 sources for double quotes without a gettext call around them.

-## `actor` and `_delegate`
+`actor` and `_delegate`
+-----------------------

 gjs allows us to set so-called "expando properties" on introspected objects,
 allowing us to treat them like any other. Because the Shell was built before
@ -206,22 +214,21 @@ that has a property called `actor`. We call this wrapper class the "delegate".

 We sometimes use expando properties to set a property called `_delegate` on
 the actor itself:
-```javascript
+
    var MyClass = new Lang.Class({
        Name: 'MyClass',

-        _init() {
+        _init: function() {
            this.actor = new St.Button({ text: "This is a button" });
            this.actor._delegate = this;

-            this.actor.connect('clicked', this._onClicked.bind(this));
+            this.actor.connect('clicked', Lang.bind(this, this._onClicked));
        },

-        _onClicked(actor) {
+        _onClicked: function(actor) {
            actor.set_label("You clicked the button!");
        }
    });
-```

 The 'delegate' property is important for anything which trying to get the
 delegate object from an associated actor. For instance, the drag and drop
@ -229,60 +236,57 @@ system calls the `handleDragOver` function on the delegate of a "drop target"
 when the user drags an item over it. If you do not set the `_delegate`
 property, your actor will not be able to be dropped onto.

-## Functional style
+Functional style
+----------------

 JavaScript Array objects offer a lot of common functional programming
 capabilities such as forEach, map, filter and so on. You can use these when
 they make sense, but please don't have a spaghetti mess of function programming
 messed in a procedural style. Use your best judgment.

-## Closures
+Closures
+--------

 `this` will not be captured in a closure, it is relative to how the closure is
 invoked, not to the value of this where the closure is created, because "this"
 is a keyword with a value passed in at function invocation time, it is not a
 variable that can be captured in closures.

-All closures should be wrapped with Function.prototype.bind or use arrow
-notation.
-```javascript
+All closures should be wrapped with a Lang.bind.
+
    const Lang = imports.lang;

-    let closure1 = () => { this._fnorbate(); };
-    let closure2 = this._fnorbate.bind(this);
-```
+    let closure = Lang.bind(this, function() { this._fnorbate(); });

 A more realistic example would be connecting to a signal on a method of a
 prototype:
-```javascript
+
    const Lang = imports.lang;
    const FnorbLib = imports.fborbLib;

    var MyClass = new Lang.Class({
-        _init() {
+        _init: function() {
            let fnorb = new FnorbLib.Fnorb();
-            fnorb.connect('frobate', this._onFnorbFrobate.bind(this));
+            fnorb.connect('frobate', Lang.bind(this, this._onFnorbFrobate));
        },

-        _onFnorbFrobate(fnorb) {
+        _onFnorbFrobate: function(fnorb) {
            this._updateFnorb();
        }
    });
-```

-## Object literal syntax
+Object literal syntax
+---------------------

 In JavaScript, these are equivalent:
-```javascript
+
    foo = { 'bar': 42 };
    foo = { bar: 42 };
-```

 and so are these:
-```javascript
+
    var b = foo['bar'];
    var b = foo.bar;
-```

 If your usage of an object is like an object, then you're defining "member
 variables." For member variables, use the no-quotes no-brackets syntax: `{ bar:
@ -292,19 +296,20 @@ If your usage of an object is like a hash table (and thus conceptually the keys
 can have special chars in them), don't use quotes, but use brackets: `{ bar: 42
 }`, `foo['bar']`.

-## Getters, setters, and Tweener
+Getters, setters, and Tweener
+-----------------------------

 Getters and setters should be used when you are dealing with an API that is
 designed around setting properties, like Tweener. If you want to animate an
 arbitrary property, create a getter and setter, and use Tweener to animate the
 property.
-```javascript
+
    var ANIMATION_TIME = 2000;

    var MyClass = new Lang.Class({
        Name: 'MyClass',

-        _init() {
+        _init: function() {
            this.actor = new St.BoxLayout();
            this._position = 0;
        },
@ -324,4 +329,3 @@ property.
                     { position: 100,
                       time: ANIMATION_TIME,
                       transition: 'easeOutQuad' });
-```
--- a/7
+++ b/7
@ -0,0 +1,7 @@
+Owen Taylor
+E-mail: otaylor@redhat.com
+Userid: otaylor
+
+Colin Walters
+E-mail: walters@verbum.org
+Userid: walters
--- a/163
+++ b/163
@ -1,166 +1,3 @@
-3.29.90
-=======
-* Add remote access indication on wayland [Jonas; !160]
-* Fix wrong window positions in overview on wayland [Marco; #776588]
-* Add gesture to unfullscreen a window [Jan-Michael; !123]
-* Add PickColor method to screenshot D-Bus interface [Florian; #286]
-* Consider "new-window" action when opening new windows [Florian; #756844]
-* Make workspace switching gestures follow motion [Carlos; #788994]
-* Support audio volumes above 100% [Didier; #790280]
-* Misc. bug fixes [Florian, Daniel; #424, !132, !182, #433, !179, #786496]
-
-Contributors:
-  Jonas Ådahl, Jan-Michael Brummer, Piotr Drąg, Daniel Drake, Carlos Garnacho,
-  Florian Müllner, Georges Basile Stavracas Neto, Didier Roche, Jakub Steiner,
-  Marco Trevisan (Treviño)
-
-Translators:
-  Charles Monzat [fr], Daniel Mustieles [es]
-
-3.29.4
-======
-* Fix "Clear All" for calendar events [Florian; #325]
-* Allow cancelling direct switch operations [Xavier; #315]
-* Support being started by systemd --user [Iain; !137, !138]
-* Support key event forwarding required by some input methods [Carlos; #275]
-* Misc. bug fixes and cleanups [Jasper, Andrea, Florian; #663461, #372, !112,
-  #414, !151]
-
-Contributors:
-  Andrea Azzarone, Carlos Garnacho, Xavier Johnson, Iain Lane, Florian Müllner,
-  Jasper St. Pierre
-
-Translators:
-  Stas Solovey [ru]
-
-3.29.3
-======
-* Save creation time in screenshot metadata [Florian; #790481]
-* Improve consistency between ctrl- and middle-click on app icons [Xavier; #316]
-* Add support for font-feature-settings CSS property [Ryan; #34]
-* Adjust to MetaScreen removal [Jonas; #759538]
-* Misc. bug fixes [Florian, Marco, Sam; #298, #788931, #26, #76, !54, #788882,
-  #791233]
-
-Contributors:
-  Jonas Ådahl, Ryan Hendrickson, Xavier Johnson, Florian Müllner, Joe Rabinoff,
-  Sam Spilsbury, Marco Trevisan (Treviño)
-
-Translators:
-  Gun Chleoc [gd], Yi-Jyun Pan [zh_TW], Cédric Valmary [oc], Jordi Mas [ca]
-
-3.29.2
-======
-* Guard against untimely keyboard map changes [Carlos; #240]
-* Fix icons in search provider results [Florian; #249]
-* Fix blurriness of OSD under some resolutions [Silvère; #782011]
-* Fix lagging pointer when zoomed [Daniel; #682013]
-* Misc. bug fixes [Milan, Xiaoguang, Florian, Mario, Ole; #244, #787871,
-  #781471, #136, #214, #294]
-
-Contributors:
-  Ole Jørgen Brønner, Milan Crha, Carlos Garnacho, Yussuf Khalil,
-  Silvère Latchurié, Florian Müllner, Mario Sanchez Prada, Ray Strode,
-  Daniel van Vugt, Xiaoguang Wang
-
-Translators:
-  Rafael Fontenelle [pt_BR], Kukuh Syafaat [id], Marcos Lans [gl],
-  Anders Jonsson [sv], Mingcong Bai [zh_CN]
-
-3.29.1
-======
-* Support icons in app-menu [Florian; #760985]
-* Misc. bug fixes [Marco, Florian, Lubomir; #792687, #221, !63]
-
-Contributors:
-  Piotr Drąg, Takao Fujiwara, Christian Kellner, Florian Müllner,
-  Mario Sanchez Prada, Lubomir Rintel, Didier Roche, Marco Trevisan (Treviño),
-  verdre
-
-Translators:
-  gogo [hr], Stas Solovey [ru], Matej Urbančič [sl], Daniel Șerbănescu [ro],
-  Fabio Tomat [fur], Marek Cernocky [cs], Daniel Mustieles [es]
-
-3.28.1
-======
-* Fix compose characters in shell entries [Carlos; #115]
-* Don't show authentication dialogs on lock screen [Florian; #179, #166]
-* Fix handling of UTC timezone in world clock [Florian; #150]
-* Fix keyboard navigation in overview when hovering windows [Florian; #50]
-* Misc. bug fixes [Florian; #127, #788908, #763886, !39]
-
-Contributors:
-  Jeremy Bicha, Carlos Garnacho, Andy Holmes, Florian Müllner, Bastien Nocera
-
-Translators:
-  Stas Solovey [ru], Daniel Șerbănescu [ro], Dušan Kazik [sk],
-  Rafael Fontenelle [pt_BR], Nathan Follens [nl], Dz Chen [zh_CN],
-  Matej Urbančič [sl], Hannie Dumoleyn [nl], Khaled Hosny [ar],
-  Guillaume Bernard [fr]
-
-3.28.0
-======
-
-Translators:
-  A S Alam [pa], gogo [hr], Chao-Hsiung Liao [zh_TW], Jordi Mas [ca],
-  Anders Jonsson [sv], Balázs Úr [hu]
-
-3.27.92
-=======
-* Misc. bug fixes [Florian; #64, #66, #72]
-
-Contributors:
-  Jonas Ådahl, Christian Kellner, Florian Müllner
-
-Translators:
-  Daniel Mustieles [es], Wolfgang Stöggl [de], Cheng-Chia Tseng [zh_TW],
-  Dušan Kazik [sk], Changwoo Ryu [ko], Furkan Ahmet Kara [tr], Balázs Úr [hu],
-  Trần Ngọc Quân [vi], Milo Casagrande [it], GNOME Translation Robot [gd, nl],
-  Marek Cernocky [cs], Aurimas Černius [lt], Alain Lojewski [fr],
-  Rūdolfs Mazurs [lv], Stas Solovey [ru], Alan Mortensen [da]
-
-3.27.91
-=======
-* Fix wrong bluetooth state when disabled by HW airplane mode [Mario; #789110]
-* Dump javascript stack on aborts, traps and segfaults [Marco; #789237]
-* Allow Escape to "cancel" top bar focus [Stefano; #671121]
-* Fix leaving the overview erroneously on window hover [Carlos; #784545]
-* Add keyboard accessibility dialog [Olivier; #788564]
-* Port to libnm [Lubomir, Florian; #789811]
-* Don't pop up on-screen-keyboard on touch events [Florian, Carlos; #788188]
-* Improve the on-screen-keyboard [Carlos; !9, #46]
-* Add Thunderbolt support [Christian; !14]
-* Don't lock immediately on login after a wayland session crash [Florian; !17]
-* Respect cursor's hot x/y coordinates when recording [Florian Z.; #792860]
-* Allow closing windows and apps during <alt>Tab [Florian, Mario; #620106]
-* Fix small app folder icons when using HiDPI [Nikita; #792259]
-* Make sassc a mandatory build dependency [Mario; #792822]
-* Misc. bug fixes [Florian, Marco, Alessandro, Gautier, Jeremy, Bastien, Ray,
-  Carlos, Didier, Exalm, Rafal; #789231, #789277, #788542, #789103, #779974,
-  #788931, #776940, #786987, #791007, #791233, #791148, #706191, #791655,
-  #791487, #779413, #787845, #10, #788627, #792354, #792616, #781329, #780957,
-  #33, #740142, !38, !23]
-
-Contributors:
-  Jeremy Bicha, Alessandro Bono, Nikita Churaev, Piotr Drąg, Exalm,
-  Stefano Facchini, Olivier Fourdan, Carlos Garnacho, Christian Kellner,
-  Rafal Luzynski, Iñigo Martínez, Florian Müllner, Bastien Nocera,
-  Gautier Pelloux-Prayer, Mario Sanchez Prada, Lubomir Rintel, Didier Roche,
-  Jakub Steiner, Ray Strode, Marco Trevisan (Treviño), Florian Zwoch
-
-Translators:
-  Mingcong Bai [zh_CN], Hannie Dumoleyn [nl], Khaled Hosny [ar],
-  Kjartan Maraas [nb], Petr Kovar [cs], Marek Cernocky [cs],
-  Aurimas Černius [lt], Yosef Or Boczko [he], Kukuh Syafaat [id],
-  Sveinn í Felli [is], Jordi Mas [ca], Daniel Mustieles [es], Fabio Tomat [fur],
-  Rūdolfs Mazurs [lv], Emin Tufan Çetin [tr], Anders Jonsson [sv],
-  Matej Urbančič [sl], Jiri Grönroos [fi], Tim Sabsch [de], Gil Forcada [ca],
-  Dušan Kazik [sk], Balázs Meskó [hu], Piotr Drąg [pl], Tong Hui [zh_CN],
-  Fran Dieguez [gl], Enrico Nicoletto [pt_BR], gogo [hr],
-  Baurzhan Muftakhidinov [kk], Robert Antoni Buj Gelonch [ca],
-  Bruce Cowan [en_GB], Борисав Живановић [sr], Милош Поповић [sr@latin],
-  Марко Костић [sr]
-
 3.27.1
 ======
 * Fix using icon-name strings with PopupImageMenuItems [Florian; #789018]
--- a/README.md
+++ b/README.md
@ -1,4 +1,3 @@
-# GNOME Shell
 GNOME Shell provides core user interface functions for the GNOME 3 desktop,
 like switching to windows and launching applications. GNOME Shell takes
 advantage of the capabilities of modern graphics hardware and introduces
@ -7,14 +6,15 @@ easy to use experience.

 For more information about GNOME Shell, including instructions on how
 to build GNOME Shell from source and how to get involved with the project,
-see the [project wiki][wiki]
+see:

-Bugs should be reported to the GNOME [bug tracking system][bug-tracker].
+ https://wiki.gnome.org/Projects/GnomeShell

-## License
+Bugs should be reported at http://bugzilla.gnome.org against the 'gnome-shell'
+product.
+
+License
+=======
 GNOME Shell is distributed under the terms of the GNU General Public License,
-version 2 or later. See the [COPYING][license] file for details.
+version 2 or later. See the COPYING file for details.

-[project-wiki]: https://wiki.gnome.org/Projects/GnomeShell
-[bug-tracker]: https://gitlab.gnome.org/GNOME/gnome-shell/issues
-[license]: COPYING
--- a/browser-plugin/README.md
+++ b/browser-plugin/README.md
@ -4,14 +4,14 @@ the extensions repository to provide good integration, letting the website
 know which extensions are enabled and disabled, and allowing the website to
 enable, disable and install them.

-Bugs should be reported to the GNOME [bug tracking system][bug-tracker].
+Bugs should be reported at http://bugzilla.gnome.org against the 'gnome-shell'
+product.

-## License
+License
+=======
 The GNOME Shell Browser Plugin, like GNOME Shell itself is distributed under
 the GNU General Public License, version 2 or later. The plugin also contains
 header files from the "NPAPI SDK" project, tri-licensed under MPL 1.1, GPL 2.0
 and LGPL 2.1. These headers are third-party sources and can be retrieved from:

  http://code.google.com/p/npapi-sdk/
-
-[bug-tracker]: https://gitlab.gnome.org/GNOME/gnome-shell/issues
--- a/config.h.meson
+++ b/config.h.meson
@ -24,9 +24,3 @@

 /* Define if _NL_TIME_FIRST_WEEKDATE is available */
 #mesondefine HAVE__NL_TIME_FIRST_WEEKDAY
-
-/* Define if you have the `g_desktop_app_info_launch_uris_as_manager_with_fds` function */
-#mesondefine HAVE_GIO_DESKTOP_LAUNCH_URIS_WITH_FDS
-
-/* Define if fdwalk is available in libc */
-#mesondefine HAVE_FDWALK
--- a/data/00_org.gnome.shell.gschema.override
+++ b/data/00_org.gnome.shell.gschema.override
@ -1,6 +0,0 @@
-[org.gnome.mutter:GNOME]
-attach-modal-dialogs=true
-edge-tiling=true
-dynamic-workspaces=true
-workspaces-only-on-primary=true
-focus-change-on-pointer-rest=true
--- a/data/gnome-shell-overrides-migration.desktop.in
+++ b/data/gnome-shell-overrides-migration.desktop.in
@ -1,5 +0,0 @@
-[Desktop Entry]
-Type=Application
-Name=GNOME settings overrides migration
-NoDisplay=true
-Exec=@libexecdir@/gnome-shell-overrides-migration.sh
--- a/data/gnome-shell-theme.gresource.xml
+++ b/data/gnome-shell-theme.gresource.xml
@ -19,12 +19,6 @@
    <file>filter-selected-rtl.svg</file>
    <file>gnome-shell.css</file>
    <file>gnome-shell-high-contrast.css</file>
-    <file>key-enter.svg</file>
-    <file>key-hide.svg</file>
-    <file>key-layout.svg</file>
-    <file>key-shift.svg</file>
-    <file>key-shift-uppercase.svg</file>
-    <file>key-shift-latched-uppercase.svg</file>
    <file>logged-in-indicator.svg</file>
    <file alias="icons/message-indicator-symbolic.svg">message-indicator-symbolic.svg</file>
    <file>no-events.svg</file>
--- a/data/gnome-shell-wayland.target
+++ b/data/gnome-shell-wayland.target
@ -1,5 +0,0 @@
-[Unit]
-Description=GNOME Shell (wayland sync point)
-After=gnome-shell.service
-BindsTo=gnome-shell.service
-Conflicts=gnome-shell-x11.target
--- a/data/gnome-shell-x11.target
+++ b/data/gnome-shell-x11.target
@ -1,5 +0,0 @@
-[Unit]
-Description=GNOME Shell (x11 sync point)
-After=gnome-shell.service
-BindsTo=gnome-shell.service
-Conflicts=gnome-shell-wayland.target
--- a/data/gnome-shell.service.in
+++ b/data/gnome-shell.service.in
@ -1,11 +0,0 @@
-[Unit]
-Description=GNOME Shell
-Wants=gnome-session.service
-After=graphical-session-pre.target gnome-session-bus.target
-PartOf=graphical-session.target
-
-[Service]
-Type=dbus
-ExecStart=@bindir@/gnome-shell
-Restart=on-failure
-BusName=org.gnome.Shell
--- a/data/meson.build
+++ b/data/meson.build
@ -92,33 +92,6 @@ schema = configure_file(
  configuration: schemaconf,
  install_dir: schemadir
 )
-install_data('00_org.gnome.shell.gschema.override', install_dir: schemadir)
-
-overrides_migration_conf = configuration_data()
-overrides_migration_conf.set('libexecdir', libexecdir)
-overrides_migration = configure_file(
-  input: 'gnome-shell-overrides-migration.desktop.in',
-  output: 'gnome-shell-overrides-migration.desktop',
-  configuration: overrides_migration_conf,
-  install_dir: autostartdir
-)
-
-if have_systemd
-  unitconf = configuration_data()
-  unitconf.set('bindir', bindir)
-
-  unit = configure_file(
-    input: 'gnome-shell.service.in',
-    output: 'gnome-shell.service',
-    configuration: unitconf,
-    install_dir: systemduserunitdir
-  )
-
-  units = files('gnome-shell-wayland.target',
-                'gnome-shell-x11.target')
-
-  install_data(units, install_dir: systemduserunitdir)
-endif

 # for unit tests - gnome.compile_schemas() only looks in srcdir
 custom_target('compile-schemas',
--- a/data/org.gnome.Shell.Screenshot.xml
+++ b/data/org.gnome.Shell.Screenshot.xml
@ -91,23 +91,6 @@
      <arg type="s" direction="out" name="filename_used"/>
    </method>

-    <!--
-        PickColor:
-
-        Picks a color and returns the result.
-
-        The @result vardict contains:
-        <variablelist>
-          <varlistentry>
-            <term>color (ddd)</term>
-            <listitem><para>The color, RGB values in the range [0,1].</para></listitem>
-          </varlistentry>
-        </variablelist>
-    -->
-    <method name="PickColor">
-      <arg type="a{sv}" direction="out" name="result"/>
-    </method>
-
    <!--
        FlashArea:
        @x: the X coordinate of the area to flash
--- a/data/org.gnome.shell.gschema.xml.in
+++ b/data/org.gnome.shell.gschema.xml.in
@ -190,7 +190,6 @@
    </key>
  </schema>

-  <!-- unused, change 00_org.gnome.shell.gschema.override instead -->
  <schema id="org.gnome.shell.overrides" path="/org/gnome/shell/overrides/"
 	  gettext-domain="@GETTEXT_PACKAGE@">
    <key name="attach-modal-dialogs" type="b">
--- a/data/theme/HACKING
+++ b/data/theme/HACKING
@ -0,0 +1,3 @@
+To generate the css files, from the project directory:
+
+sass --sourcemap=none --update .
--- a/data/theme/README
+++ b/data/theme/README
@ -0,0 +1,31 @@
+Summary
+-------
+
+* Do not edit the CSS directly, edit the source SCSS files and the CSS files will be generated
+  automatically when building with meson + ninja and left inside the build directory to be
+  incorporated into the gresource XML (you'll need to have sassc installed).
+
+How to tweak the theme
+----------------------
+
+Adwaita is a complex theme, so to keep it maintainable it's written and processed in SASS, the
+generated CSS is then transformed into a gresource file during gtk build and used at runtime in a 
+non-legible or editable form.
+
+It is very likely your change will happen in the _common.scss file. That's where all the widget 
+selectors are defined. Here's a rundown of the "supporting" stylesheets, that are unlikely to be the 
+right place for a drive by stylesheet fix:
+
+_colors.scss        - global color definitions. We keep the number of defined colors to a necessary minimum, 
+                      most colors are derived from a handful of basics. It is an exact copy of the gtk+ 
+                      counterpart. Light theme is used for the classic theme and dark is for GNOME3 shell 
+                      default.
+
+_drawing.scss       - drawing helper mixings/functions to allow easier definition of widget drawing under
+                      specific context. This is why Adwaita isn't 15000 LOC.
+
+_common.scss        - actual definitions of style for each widget. This is where you are likely to add/remove
+                      your changes.
+                      
+You can read about SASS at http://sass-lang.com/documentation/. Once you make your changes to the
+_common.scss file, you can run ninja to generate the final CSS files.
--- a/data/theme/README.md
+++ b/data/theme/README.md
@ -1,32 +0,0 @@
-## Summary
-
-Do not edit the CSS directly, edit the source SCSS files and the CSS files
-will be generated automatically when building with meson + ninja and left
-inside the build directory to be incorporated into the gresource XML (you'll
-need to have sassc installed).
-
-## How to tweak the theme
-
-Adwaita is a complex theme, so to keep it maintainable it's written and
-processed in SASS, the generated CSS is then transformed into a gresource
-file during gtk build and used at runtime in a non-legible or editable form.
-
-It is very likely your change will happen in the [_common.scss][common] file.
-That's where all the widget selectors are defined. Here's a rundown of
-the "supporting" stylesheets, that are unlikely to be the right place
-for a drive by stylesheet fix:
-
-| File                     | Description       |
-| ------------------------ | ----------------- |
-| [_colors.scss][colors]   | global color definitions. We keep the number of defined colors to a necessary minimum,  most colors are derived from a handful of basics. It is an exact copy of the gtk+ counterpart. Light theme is used for the classic theme and dark is for GNOME3 shell default. |
-| [_drawing.scss][drawing] | drawing helper mixings/functions to allow easier definition of widget drawing under specific context. This is why Adwaita isn't 15000 LOC. |
-| [_common.scss][common]   | actual definitions of style for each widget. This is where you are likely to add/remove your changes. |
-
-You can read about SASS on its [web page][sass-web]. Once you make your
-changes to the [_common.scss][common] file, you can run ninja to generate the
-final CSS files.
-
-[common]: data/theme/gnome-shell-sass/_common.scss
-[colors]: data/theme/gnome-shell-sass/_colors.scss
-[drawing]: data/theme/gnome-shell-sass/_drawing.scss
-[sass-web]: http://sass-lang.com/documentation/
--- a/data/theme/gnome-shell-sass/HACKING
+++ b/data/theme/gnome-shell-sass/HACKING
@ -0,0 +1,6 @@
+--- Generating the css file ---
+
+You need sass to generate the css file.
+
+To generate them run from a command line in the project directory:
+sass --sourcemap=none --update ./
--- a/data/theme/gnome-shell-sass/README
+++ b/data/theme/gnome-shell-sass/README
@ -0,0 +1,7 @@
+GNOME Shell Sass is a project intended to allow the sharing of the theme sources in sass between gnome-shell and other projects like gnome-shell-extensions.
+
+License
+=======
+GNOME Shell Sass is distributed under the terms of the GNU General Public License,
+version 2 or later. See the COPYING file for details.
+
--- a/data/theme/gnome-shell-sass/README.md
+++ b/data/theme/gnome-shell-sass/README.md
@ -1,16 +0,0 @@
-# GNOME Shell Sass
-GNOME Shell Sass is a project intended to allow the sharing of the
-theme sources in sass between gnome-shell and other projects like
-gnome-shell-extensions.
-
-Any changes should be done in the [GNOME Shell subtree][shell-subtree]
-and not the stand-alone [gnome-shell-sass repository][sass-repo]. They
-will then be synchronized periodically before releases.
-
-## License
-GNOME Shell Sass is distributed under the terms of the GNU General Public
-License, version 2 or later. See the [COPYING][license] file for details.
-
-[shell-subtree]: https://gitlab.gnome.org/GNOME/gnome-shell/tree/master/data/theme/gnome-shell-sass
-[sass-repo]: https://gitlab.gnome.org/GNOME/gnome-shell-sass
-[license]: COPYING
--- a/data/theme/gnome-shell-sass/_common.scss
+++ b/data/theme/gnome-shell-sass/_common.scss
@ -128,15 +128,12 @@ StScrollBar {

 .slider {
  height: 1em;
-  -barlevel-height: 0.3em;
-  -barlevel-background-color: $insensitive_bg_color; //background of the trough
-  -barlevel-border-color: $borders_color; //trough border color
-  -barlevel-active-background-color: $selected_bg_color; //active trough fill
-  -barlevel-active-border-color: darken($selected_bg_color,10%); //active trough border
-  -barlevel-overdrive-color: $destructive_color;
-  -barlevel-overdrive-border-color: darken($destructive_color,10%);
-  -barlevel-overdrive-separator-width: 0.2em;
-  -barlevel-border-width: 1px;
+  -slider-height: 0.3em;
+  -slider-background-color: $insensitive_bg_color; //background of the trough
+  -slider-border-color: $borders_color; //trough border color
+  -slider-active-background-color: $selected_bg_color; //active trough fill
+  -slider-active-border-color: darken($selected_bg_color,10%); //active trough border
+  -slider-border-width: 1px;
  -slider-handle-radius: 6px;
 }

@ -588,11 +585,13 @@ StScrollBar {
  .osd-monitor-label { font-size: 3em; }
  .level {
    height: 0.6em;
-    -barlevel-height: 0.6em;
-    -barlevel-background-color: transparentize(darken($osd_bg_color,15%),0.5);
-    -barlevel-active-background-color: $osd_fg_color;
-    -barlevel-overdrive-color: $destructive_color;
-    -barlevel-overdrive-separator-width: 0.2em;
+    border-radius: 0.3em;
+    background-color: transparentize(darken($osd_bg_color,15%),0.5);
+    color: $osd_fg_color;
+  }
+  .level-bar {
+    background-color: $osd_fg_color;
+    border-radius: 0.3em;
  }
 }

@ -734,7 +733,6 @@ StScrollBar {
  transition-duration: 500ms;
  font-weight: bold;
  height: 1.86em;
-  font-feature-settings: "tnum";

  &.unlock-screen,
  &.login-screen,
@ -826,8 +824,6 @@ StScrollBar {

  .screencast-indicator { color: $warning_color; }

-  .remote-access-indicator { color: $warning_color; }
-
  &.solid {
    background-color: black;
    /* transition from transparent to solid */
@ -912,7 +908,6 @@ StScrollBar {

    .datemenu-today-button .date-label {
      font-size: 1.5em;
-      font-weight: 300;
    }

    .world-clocks-header,
@ -962,7 +957,6 @@ StScrollBar {
      padding: 0.1em;
      margin: 2px;
      border-radius: 1.4em;
-      font-feature-settings: "tnum";
      &:hover,&:focus { background-color: lighten($bg_color,5%); }
      &:active,&:selected {
        color: lighten($selected_fg_color,5%);
@ -1116,7 +1110,7 @@ StScrollBar {
  .aggregate-menu {
    min-width: 21em;
    .popup-menu-icon { padding: 0 4px; }
-    .popup-sub-menu .popup-menu-item > :first-child {
+    .popup-sub-menu .popup-menu-item :first-child {
      &:ltr { /* 12px spacing + 2*4px padding */
              padding-left: 20px; margin-left: 1.09em; }
      &:rtl { /* 12px spacing + 2*4px padding */
@ -1125,7 +1119,6 @@ StScrollBar {
  }

  .system-menu-action {
-    -st-icon-style: symbolic;
    color: $fg_color;
    border-radius: 32px; /* wish we could do 50% */
    padding: 13px;
@ -1650,7 +1643,7 @@ StScrollBar {
    background-color: #393f3f;
    min-height: 2em;
    min-width: 2em;
-    font-size: 16pt;
+    font-size: 14pt;
    border-radius: 3px;
    border: 1px solid #464d4d;
    color: #e5e5e5;
@ -1665,32 +1658,16 @@ StScrollBar {
    &.default-key {
      border-color: #2d3232;
      background-color: #1d2020;
-      background-size: 20px;
    }
    &.enter-key {
      border-color: #005684;
      background-color: #006098;
-      background-image: url("resource:///org/gnome/shell/theme/key-enter.svg");
-    }
-    &.shift-key-lowercase {
-      background-image: url("resource:///org/gnome/shell/theme/key-shift.svg");
-    }
-    &.shift-key-uppercase {
-      background-image: url("resource:///org/gnome/shell/theme/key-shift-uppercase.svg");
-    }
-    &.shift-key-uppercase:latched {
-      background-image: url("resource:///org/gnome/shell/theme/key-shift-latched-uppercase.svg");
-    }
-    &.hide-key {
-      background-image: url("resource:///org/gnome/shell/theme/key-hide.svg");
-    }
-    &.layout-key {
-      background-image: url("resource:///org/gnome/shell/theme/key-layout.svg");
    }
  }

  .keyboard-subkeys { //long press on a key popup
    color: white;
+    padding: 5px;
    -arrow-border-radius: 10px;
    -arrow-background-color: transparentize($osd_bg_color, 0.3);
    -arrow-border-width: 2px;
@ -1794,19 +1771,20 @@ StScrollBar {
  .login-dialog-user-list-view { -st-vfade-offset: 1em; }
  .login-dialog-user-list {
    spacing: 12px;
+    padding: .2em;
    width: 23em;
    &:expanded .login-dialog-user-list-item:selected { background-color: $selected_bg_color; color: $selected_fg_color; }
    &:expanded .login-dialog-user-list-item:logged-in { border-right: 2px solid $selected_bg_color; }
  }
  .login-dialog-user-list-item {
    border-radius: 5px;
-    padding: 6px;
+    padding: .2em;
    color: darken($osd_fg_color,30%);
-    &:ltr .user-widget { padding-right: 1em; }
-    &:rtl .user-widget { padding-left: 1em; }
+    &:ltr { padding-right: 1em; }
+    &:rtl { padding-left: 1em; }
    .login-dialog-timed-login-indicator {
      height: 2px;
-      margin-top: 6px;
+      margin: 2px 0 0 0;
      background-color: $osd_fg_color;
    }
    &:focus .login-dialog-timed-login-indicator { background-color: $selected_fg_color; }
@ -1821,8 +1799,8 @@ StScrollBar {
    padding-left: 15px;
  }
    .user-widget-label {
-      &:ltr { padding-left: 14px; }
-      &:rtl { padding-right: 14px; }
+      &:ltr { padding-left: 18px; }
+      &:rtl { padding-right: 18px; }
    }

  .login-dialog-prompt-layout {
@ -1873,13 +1851,9 @@ StScrollBar {
 .screen-shield-clock-time {
  font-size: 72pt;
  text-shadow: 0px 2px 2px rgba(0,0,0,0.4);
-  font-feature-settings: "tnum";
 }

-.screen-shield-clock-date { 
-  font-size: 28pt;
-  font-weight: normal;
-}
+.screen-shield-clock-date { font-size: 28pt; }

 .screen-shield-notifications-container {
  spacing: 6px;
--- a/data/theme/key-enter.svg
+++ b/data/theme/key-enter.svg
@ -1,109 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg
-   xmlns:osb="http://www.openswatchbook.org/uri/2009/osb"
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   width="32"
-   viewBox="0 0 32 32"
-   version="1.1"
-   id="svg7384"
-   height="32"
-   sodipodi:docname="key-enter.svg"
-   inkscape:version="0.92.2 (5c3e80d, 2017-08-06)">
-  <sodipodi:namedview
-     pagecolor="#ffffff"
-     bordercolor="#666666"
-     borderopacity="1"
-     objecttolerance="10"
-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:window-width="1744"
-     inkscape:window-height="866"
-     id="namedview19"
-     showgrid="false"
-     inkscape:zoom="14.75"
-     inkscape:cx="7.9322034"
-     inkscape:cy="14.554666"
-     inkscape:window-x="0"
-     inkscape:window-y="55"
-     inkscape:window-maximized="0"
-     inkscape:current-layer="svg7384" />
-  <metadata
-     id="metadata90">
-    <rdf:RDF>
-      <cc:Work
-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title>Gnome Symbolic Icon Theme</dc:title>
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <title
-     id="title9167">Gnome Symbolic Icon Theme</title>
-  <defs
-     id="defs7386">
-    <linearGradient
-       osb:paint="solid"
-       id="linearGradient19282"
-       gradientTransform="matrix(-2.7365795,0.28202934,-0.18908311,-0.99988321,239.54008,-879.45557)">
-      <stop
-         style="stop-color:#666666;stop-opacity:1;"
-         offset="0"
-         id="stop19284" />
-    </linearGradient>
-  </defs>
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer9" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer10" />
-  <g
-     transform="translate(-141.0002,-791)"
-     id="layer11" />
-  <g
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-     style="display:inline"
-     id="layer13" />
-  <g
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-     id="layer14" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer15" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="g71291" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="g4953" />
-  <g
-     transform="matrix(2,0,0,2,-281.56285,-1615.0002)"
-     style="display:inline"
-     id="layer12">
-    <path
-       id="path16589"
-       d="m 148.00015,821.0002 h -1 c -0.26528,0 -0.53057,-0.093 -0.71875,-0.2812 l -3.71875,-3.7188 c 0,0 2.47917,-2.4792 3.71875,-3.7187 0.18817,-0.1882 0.45344,-0.2813 0.71875,-0.2813 h 1 v 1 c 0,0.2653 -0.0931,0.5306 -0.28125,0.7188 l -2.28125,2.2812 2.28125,2.2813 c 0.18811,0.1881 0.28129,0.4534 0.28125,0.7187 z"
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-       inkscape:connector-curvature="0" />
-    <path
-       style="color:#000000;display:inline;overflow:visible;visibility:visible;fill:none;stroke:#bebebe;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dashoffset:0;stroke-opacity:1;marker:none;enable-background:accumulate"
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-       inkscape:connector-curvature="0" />
-  </g>
-</svg>
--- a/data/theme/key-hide.svg
+++ b/data/theme/key-hide.svg
@ -1,114 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg
-   xmlns:osb="http://www.openswatchbook.org/uri/2009/osb"
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   width="32"
-   viewBox="0 0 32 32"
-   version="1.1"
-   id="svg7384"
-   height="32"
-   sodipodi:docname="key-hide.svg"
-   inkscape:version="0.92.2 (5c3e80d, 2017-08-06)">
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-     bordercolor="#666666"
-     borderopacity="1"
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-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:window-width="1919"
-     inkscape:window-height="1011"
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-     showgrid="false"
-     inkscape:zoom="14.75"
-     inkscape:cx="-12.338983"
-     inkscape:cy="14.554666"
-     inkscape:window-x="0"
-     inkscape:window-y="55"
-     inkscape:window-maximized="0"
-     inkscape:current-layer="svg7384" />
-  <metadata
-     id="metadata90">
-    <rdf:RDF>
-      <cc:Work
-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title>Gnome Symbolic Icon Theme</dc:title>
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <title
-     id="title9167">Gnome Symbolic Icon Theme</title>
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-         style="stop-color:#666666;stop-opacity:1;"
-         offset="0"
-         id="stop19284" />
-    </linearGradient>
-  </defs>
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer9" />
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-     style="display:inline"
-     id="layer10" />
-  <g
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-     id="layer11" />
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-       inkscape:connector-curvature="0"
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-</svg>
--- a/data/theme/key-layout.svg
+++ b/data/theme/key-layout.svg
@ -1,129 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg
-   xmlns:osb="http://www.openswatchbook.org/uri/2009/osb"
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   width="32"
-   viewBox="0 0 32 32"
-   version="1.1"
-   id="svg7384"
-   height="32"
-   sodipodi:docname="key-layout.svg"
-   inkscape:version="0.92.3 (2405546, 2018-03-11)">
-  <sodipodi:namedview
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-     bordercolor="#666666"
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-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:window-width="3440"
-     inkscape:window-height="1376"
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-     showgrid="false"
-     inkscape:zoom="1"
-     inkscape:cx="46.246852"
-     inkscape:cy="17.474578"
-     inkscape:window-x="0"
-     inkscape:window-y="27"
-     inkscape:window-maximized="1"
-     inkscape:current-layer="svg7384">
-    <inkscape:grid
-       type="xygrid"
-       id="grid861" />
-  </sodipodi:namedview>
-  <metadata
-     id="metadata90">
-    <rdf:RDF>
-      <cc:Work
-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title>Gnome Symbolic Icon Theme</dc:title>
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <title
-     id="title9167">Gnome Symbolic Icon Theme</title>
-  <defs
-     id="defs7386">
-    <linearGradient
-       osb:paint="solid"
-       id="linearGradient19282"
-       gradientTransform="matrix(-2.7365795,0.28202934,-0.18908311,-0.99988321,239.54008,-879.45557)">
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-         offset="0"
-         id="stop19284" />
-    </linearGradient>
-  </defs>
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
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-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
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-  <g
-     transform="translate(-141.0002,-791)"
-     id="layer11" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
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-  <g
-     transform="translate(-141.0002,-791)"
-     id="layer14" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer15" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="g71291" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
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-  <g
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-     inkscape:label="preferences-desktop-locale"
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-    <path
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-    <path
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-       x="-68"
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-</svg>
--- a/data/theme/key-shift-latched-uppercase.svg
+++ b/data/theme/key-shift-latched-uppercase.svg
@ -1,109 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg
-   xmlns:osb="http://www.openswatchbook.org/uri/2009/osb"
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   width="32"
-   viewBox="0 0 32 32"
-   version="1.1"
-   id="svg7384"
-   height="32"
-   sodipodi:docname="key-shift-latched-uppercase.svg"
-   inkscape:version="0.92.2 (5c3e80d, 2017-08-06)">
-  <sodipodi:namedview
-     pagecolor="#ffffff"
-     bordercolor="#666666"
-     borderopacity="1"
-     objecttolerance="10"
-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:window-width="1791"
-     inkscape:window-height="984"
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-     showgrid="false"
-     inkscape:zoom="14.75"
-     inkscape:cx="-0.77966097"
-     inkscape:cy="18.847458"
-     inkscape:window-x="0"
-     inkscape:window-y="55"
-     inkscape:window-maximized="0"
-     inkscape:current-layer="svg7384" />
-  <metadata
-     id="metadata90">
-    <rdf:RDF>
-      <cc:Work
-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title>Gnome Symbolic Icon Theme</dc:title>
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <title
-     id="title9167">Gnome Symbolic Icon Theme</title>
-  <defs
-     id="defs7386">
-    <linearGradient
-       osb:paint="solid"
-       id="linearGradient19282"
-       gradientTransform="matrix(-2.7365795,0.28202934,-0.18908311,-0.99988321,239.54008,-879.45557)">
-      <stop
-         style="stop-color:#666666;stop-opacity:1;"
-         offset="0"
-         id="stop19284" />
-    </linearGradient>
-  </defs>
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer9" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer10" />
-  <g
-     transform="translate(-141.0002,-791)"
-     id="layer11" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer13" />
-  <g
-     transform="translate(-141.0002,-791)"
-     id="layer14" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer15" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
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-  <g
-     transform="translate(-141.0002,-791)"
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-  <g
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-    <path
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-       inkscape:connector-curvature="0" />
-  </g>
-</svg>
--- a/data/theme/key-shift-uppercase.svg
+++ b/data/theme/key-shift-uppercase.svg
@ -1,104 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg
-   xmlns:osb="http://www.openswatchbook.org/uri/2009/osb"
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   width="32"
-   viewBox="0 0 32 32"
-   version="1.1"
-   id="svg7384"
-   height="32"
-   sodipodi:docname="key-shift-uppercase.svg"
-   inkscape:version="0.92.2 (5c3e80d, 2017-08-06)">
-  <sodipodi:namedview
-     pagecolor="#ffffff"
-     bordercolor="#666666"
-     borderopacity="1"
-     objecttolerance="10"
-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
-     inkscape:pageshadow="2"
-     inkscape:window-width="2160"
-     inkscape:window-height="1311"
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-     showgrid="false"
-     inkscape:zoom="14.75"
-     inkscape:cx="-27.898305"
-     inkscape:cy="8"
-     inkscape:window-x="0"
-     inkscape:window-y="55"
-     inkscape:window-maximized="1"
-     inkscape:current-layer="svg7384" />
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-    <rdf:RDF>
-      <cc:Work
-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title>Gnome Symbolic Icon Theme</dc:title>
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <title
-     id="title9167">Gnome Symbolic Icon Theme</title>
-  <defs
-     id="defs7386">
-    <linearGradient
-       osb:paint="solid"
-       id="linearGradient19282"
-       gradientTransform="matrix(-2.7365795,0.28202934,-0.18908311,-0.99988321,239.54008,-879.45557)">
-      <stop
-         style="stop-color:#666666;stop-opacity:1;"
-         offset="0"
-         id="stop19284" />
-    </linearGradient>
-  </defs>
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer9" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer10" />
-  <g
-     transform="translate(-141.0002,-791)"
-     id="layer11" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer13" />
-  <g
-     transform="translate(-141.0002,-791)"
-     id="layer14" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
-     id="layer15" />
-  <g
-     transform="translate(-141.0002,-791)"
-     style="display:inline"
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-  <g
-     transform="translate(-141.0002,-791)"
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-  <g
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-       inkscape:connector-curvature="0" />
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-</svg>
--- a/data/theme/key-shift.svg
+++ b/data/theme/key-shift.svg
@ -1,108 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg
-   xmlns:osb="http://www.openswatchbook.org/uri/2009/osb"
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   width="32"
-   viewBox="0 0 32 32"
-   version="1.1"
-   id="svg7384"
-   height="32"
-   sodipodi:docname="key-shift.svg"
-   inkscape:version="0.92.2 (5c3e80d, 2017-08-06)">
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-     bordercolor="#666666"
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-     fit-margin-right="0"
-     fit-margin-bottom="0"
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-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title>Gnome Symbolic Icon Theme</dc:title>
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <title
-     id="title9167">Gnome Symbolic Icon Theme</title>
-  <defs
-     id="defs7386">
-    <linearGradient
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-       gradientTransform="matrix(-2.7365795,0.28202934,-0.18908311,-0.99988321,239.54008,-879.45557)">
-      <stop
-         style="stop-color:#666666;stop-opacity:1;"
-         offset="0"
-         id="stop19284" />
-    </linearGradient>
-  </defs>
-  <g
-     transform="translate(-143.8754,-788)"
-     style="display:inline"
-     id="layer9" />
-  <g
-     transform="translate(-143.8754,-788)"
-     style="display:inline"
-     id="layer10" />
-  <g
-     transform="translate(-143.8754,-788)"
-     id="layer11" />
-  <g
-     transform="translate(-143.8754,-788)"
-     style="display:inline"
-     id="layer13" />
-  <g
-     transform="translate(-143.8754,-788)"
-     id="layer14" />
-  <g
-     transform="translate(-143.8754,-788)"
-     style="display:inline"
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-  <g
-     transform="translate(-143.8754,-788)"
-     style="display:inline"
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-  <g
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-     style="display:inline"
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-  <g
-     transform="matrix(2,0,0,2,-282.0008,-1614.2187)"
-     style="display:inline"
-     id="layer12">
-    <path
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-       inkscape:connector-curvature="0" />
-  </g>
-</svg>
--- a/data/theme/meson.build
+++ b/data/theme/meson.build
@ -14,12 +14,14 @@ styles = [

 theme_deps = []

-foreach style: styles
-  theme_deps += custom_target('style-' + style,
-                              input: '@0@.scss'.format(style),
-                              output: '@0@.css'.format(style),
-                              command: [
-                                sassc, '-a', '@INPUT@', '@OUTPUT@'
-                              ],
-                              depend_files: theme_sources)
-endforeach
+if sassc.found()
+  foreach style: styles
+    theme_deps += custom_target('style-' + style,
+                                input: '@0@.scss'.format(style),
+                                output: '@0@.css'.format(style),
+                                command: [
+                                  sassc, '-a', '@INPUT@', '@OUTPUT@'
+                                ],
+                                depend_files: theme_sources)
+  endforeach
+endif
--- a/data/theme/no-notifications.svg
+++ b/data/theme/no-notifications.svg
@ -13,102 +13,10 @@
   height="64px"
   id="svg3393"
   version="1.1"
-   inkscape:version="0.92.3 (2405546, 2018-03-11)"
-   sodipodi:docname="no-notifications.svg">
+   inkscape:version="0.48.5 r10040"
+   sodipodi:docname="New document 2">
  <defs
-     id="defs3395">
-    <clipPath
-       id="clipPath6262-0"
-       clipPathUnits="userSpaceOnUse">
-      <rect
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-         width="3.8250003"
-         height="6.3750005"
-         x="26.849981"
-         y="220.75" />
-    </clipPath>
-    <clipPath
-       id="clipPath6258-0"
-       clipPathUnits="userSpaceOnUse">
-      <rect
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-         width="2.8977275"
-         height="5.3129687"
-         x="26.965673"
-         y="221.28162" />
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-    <clipPath
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-       clipPathUnits="userSpaceOnUse">
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-    <clipPath
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-       clipPathUnits="userSpaceOnUse">
-      <path
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--- a/js/extensionPrefs/main.js
+++ b/js/extensionPrefs/main.js
@ -34,16 +34,16 @@ function stripPrefix(string, prefix) {

 var Application = new Lang.Class({
    Name: 'Application',
-    _init() {
+    _init: function() {
        GLib.set_prgname('gnome-shell-extension-prefs');
        this.application = new Gtk.Application({
            application_id: 'org.gnome.shell.ExtensionPrefs',
            flags: Gio.ApplicationFlags.HANDLES_COMMAND_LINE
        });

-        this.application.connect('activate', this._onActivate.bind(this));
-        this.application.connect('command-line', this._onCommandLine.bind(this));
-        this.application.connect('startup', this._onStartup.bind(this));
+        this.application.connect('activate', Lang.bind(this, this._onActivate));
+        this.application.connect('command-line', Lang.bind(this, this._onCommandLine));
+        this.application.connect('startup', Lang.bind(this, this._onStartup));

        this._extensionPrefsModules = {};

@ -52,7 +52,7 @@ var Application = new Lang.Class({
        this._skipMainWindow = false;
    },

-    _extensionAvailable(uuid) {
+    _extensionAvailable: function(uuid) {
        let extension = ExtensionUtils.extensions[uuid];

        if (!extension)
@ -64,7 +64,7 @@ var Application = new Lang.Class({
        return true;
    },

-    _getExtensionPrefsModule(extension) {
+    _getExtensionPrefsModule: function(extension) {
        let uuid = extension.metadata.uuid;

        if (this._extensionPrefsModules.hasOwnProperty(uuid))
@ -79,7 +79,7 @@ var Application = new Lang.Class({
        return prefsModule;
    },

-    _selectExtension(uuid) {
+    _selectExtension: function(uuid) {
        if (!this._extensionAvailable(uuid))
            return;

@ -114,7 +114,7 @@ var Application = new Lang.Class({
        dialog.show();
    },

-    _buildErrorUI(extension, exc) {
+    _buildErrorUI: function(extension, exc) {
        let box = new Gtk.Box({ orientation: Gtk.Orientation.VERTICAL });
        let label = new Gtk.Label({
            label: _("There was an error loading the preferences dialog for %s:").format(extension.metadata.name)
@ -127,7 +127,9 @@ var Application = new Lang.Class({
        errortext += 'Stack trace:\n';

        // Indent stack trace.
-        errortext += exc.stack.split('\n').map(line => '  ' + line).join('\n');
+        errortext += exc.stack.split('\n').map(function(line) {
+            return '  ' + line;
+        }).join('\n');

        let scroll = new Gtk.ScrolledWindow({ vexpand: true });
        let buffer = new Gtk.TextBuffer({ text: errortext });
@ -140,7 +142,7 @@ var Application = new Lang.Class({
        return box;
    },

-    _buildUI(app) {
+    _buildUI: function(app) {
        this._window = new Gtk.ApplicationWindow({ application: app,
                                                   window_position: Gtk.WindowPosition.CENTER });

@ -162,28 +164,28 @@ var Application = new Lang.Class({
        this._window.add(scroll);

        this._extensionSelector = new Gtk.ListBox({ selection_mode: Gtk.SelectionMode.NONE });
-        this._extensionSelector.set_sort_func(this._sortList.bind(this));
-        this._extensionSelector.set_header_func(this._updateHeader.bind(this));
+        this._extensionSelector.set_sort_func(Lang.bind(this, this._sortList));
+        this._extensionSelector.set_header_func(Lang.bind(this, this._updateHeader));

        scroll.add(this._extensionSelector);


        this._shellProxy = new GnomeShellProxy(Gio.DBus.session, 'org.gnome.Shell', '/org/gnome/Shell');
-        this._shellProxy.connectSignal('ExtensionStatusChanged', (proxy, senderName, [uuid, state, error]) => {
+        this._shellProxy.connectSignal('ExtensionStatusChanged', Lang.bind(this, function(proxy, senderName, [uuid, state, error]) {
            if (ExtensionUtils.extensions[uuid] !== undefined)
                this._scanExtensions();
-        });
+        }));

        this._window.show_all();
    },

-    _sortList(row1, row2) {
+    _sortList: function(row1, row2) {
        let name1 = ExtensionUtils.extensions[row1.uuid].metadata.name;
        let name2 = ExtensionUtils.extensions[row2.uuid].metadata.name;
        return name1.localeCompare(name2);
    },

-    _updateHeader(row, before) {
+    _updateHeader: function(row, before) {
        if (!before || row.get_header())
            return;

@ -191,26 +193,27 @@ var Application = new Lang.Class({
        row.set_header(sep);
    },

-    _scanExtensions() {
+    _scanExtensions: function() {
        let finder = new ExtensionUtils.ExtensionFinder();
-        finder.connect('extension-found', this._extensionFound.bind(this));
+        finder.connect('extension-found', Lang.bind(this, this._extensionFound));
        finder.scanExtensions();
        this._extensionsLoaded();
    },

-    _extensionFound(finder, extension) {
+    _extensionFound: function(finder, extension) {
        let row = new ExtensionRow(extension.uuid);

        row.prefsButton.visible = this._extensionAvailable(row.uuid);
-        row.prefsButton.connect('clicked', () => {
-            this._selectExtension(row.uuid);
-        });
+        row.prefsButton.connect('clicked', Lang.bind(this,
+            function() {
+                this._selectExtension(row.uuid);
+            }));

        row.show_all();
        this._extensionSelector.add(row);
    },

-    _extensionsLoaded() {
+    _extensionsLoaded: function() {
        if (this._startupUuid && this._extensionAvailable(this._startupUuid))
            this._selectExtension(this._startupUuid);
        this._startupUuid = null;
@ -218,16 +221,16 @@ var Application = new Lang.Class({
        this._loaded = true;
    },

-    _onActivate() {
+    _onActivate: function() {
        this._window.present();
    },

-    _onStartup(app) {
+    _onStartup: function(app) {
        this._buildUI(app);
        this._scanExtensions();
    },

-    _onCommandLine(app, commandLine) {
+    _onCommandLine: function(app, commandLine) {
        app.activate();
        let args = commandLine.get_arguments();

@ -254,7 +257,7 @@ var DescriptionLabel = new Lang.Class({
    Name: 'DescriptionLabel',
    Extends: Gtk.Label,

-    vfunc_get_preferred_height_for_width(width) {
+    vfunc_get_preferred_height_for_width: function(width) {
        // Hack: Request the maximum height allowed by the line limit
        if (this.lines > 0)
            return this.parent(0);
@ -266,28 +269,29 @@ var ExtensionRow = new Lang.Class({
    Name: 'ExtensionRow',
    Extends: Gtk.ListBoxRow,

-    _init(uuid) {
+    _init: function(uuid) {
        this.parent();

        this.uuid = uuid;

        this._settings = new Gio.Settings({ schema_id: 'org.gnome.shell' });
-        this._settings.connect('changed::enabled-extensions', () => {
-            this._switch.state = this._isEnabled();
-        });
+        this._settings.connect('changed::enabled-extensions', Lang.bind(this,
+            function() {
+                this._switch.state = this._isEnabled();
+            }));
        this._settings.connect('changed::disable-extension-version-validation',
-            () => {
+            Lang.bind(this, function() {
                this._switch.sensitive = this._canEnable();
-            });
+            }));
        this._settings.connect('changed::disable-user-extensions',
-            () => {
+            Lang.bind(this, function() {
                this._switch.sensitive = this._canEnable();
-            });
+            }));

        this._buildUI();
    },

-    _buildUI() {
+    _buildUI: function() {
        let extension = ExtensionUtils.extensions[this.uuid];

        let hbox = new Gtk.Box({ orientation: Gtk.Orientation.HORIZONTAL,
@ -324,17 +328,18 @@ var ExtensionRow = new Lang.Class({
        this._switch = new Gtk.Switch({ valign: Gtk.Align.CENTER,
                                        sensitive: this._canEnable(),
                                        state: this._isEnabled() });
-        this._switch.connect('notify::active', () => {
-            if (this._switch.active)
-                this._enable();
-            else
-                this._disable();
-        });
-        this._switch.connect('state-set', () => true);
+        this._switch.connect('notify::active', Lang.bind(this,
+            function() {
+                if (this._switch.active)
+                    this._enable();
+                else
+                    this._disable();
+            }));
+        this._switch.connect('state-set', function() { return true; });
        hbox.add(this._switch);
    },

-    _canEnable() {
+    _canEnable: function() {
        let extension = ExtensionUtils.extensions[this.uuid];
        let checkVersion = !this._settings.get_boolean('disable-extension-version-validation');

@ -342,12 +347,12 @@ var ExtensionRow = new Lang.Class({
               !(checkVersion && ExtensionUtils.isOutOfDate(extension));
    },

-    _isEnabled() {
+    _isEnabled: function() {
        let extensions = this._settings.get_strv('enabled-extensions');
        return extensions.indexOf(this.uuid) != -1;
    },

-    _enable() {
+    _enable: function() {
        let extensions = this._settings.get_strv('enabled-extensions');
        if (extensions.indexOf(this.uuid) != -1)
            return;
@ -356,7 +361,7 @@ var ExtensionRow = new Lang.Class({
        this._settings.set_strv('enabled-extensions', extensions);
    },

-    _disable() {
+    _disable: function() {
        let extensions = this._settings.get_strv('enabled-extensions');
        let pos = extensions.indexOf(this.uuid);
        if (pos == -1)
@ -373,11 +378,11 @@ function initEnvironment() {
    // Monkey-patch in a "global" object that fakes some Shell utilities
    // that ExtensionUtils depends on.
    window.global = {
-        log() {
+        log: function() {
            print([].join.call(arguments, ', '));
        },

-        logError(s) {
+        logError: function(s) {
            log('ERROR: ' + s);
        },

--- a/js/gdm/authPrompt.js
+++ b/js/gdm/authPrompt.js
@ -41,7 +41,7 @@ var BeginRequestType = {
 var AuthPrompt = new Lang.Class({
    Name: 'AuthPrompt',

-    _init(gdmClient, mode) {
+    _init: function(gdmClient, mode) {
        this.verificationStatus = AuthPromptStatus.NOT_VERIFYING;

        this._gdmClient = gdmClient;
@ -55,33 +55,35 @@ var AuthPrompt = new Lang.Class({

        this._userVerifier = new GdmUtil.ShellUserVerifier(this._gdmClient, { reauthenticationOnly: reauthenticationOnly });

-        this._userVerifier.connect('ask-question', this._onAskQuestion.bind(this));
-        this._userVerifier.connect('show-message', this._onShowMessage.bind(this));
-        this._userVerifier.connect('verification-failed', this._onVerificationFailed.bind(this));
-        this._userVerifier.connect('verification-complete', this._onVerificationComplete.bind(this));
-        this._userVerifier.connect('reset', this._onReset.bind(this));
-        this._userVerifier.connect('smartcard-status-changed', this._onSmartcardStatusChanged.bind(this));
-        this._userVerifier.connect('ovirt-user-authenticated', this._onOVirtUserAuthenticated.bind(this));
+        this._userVerifier.connect('ask-question', Lang.bind(this, this._onAskQuestion));
+        this._userVerifier.connect('show-message', Lang.bind(this, this._onShowMessage));
+        this._userVerifier.connect('verification-failed', Lang.bind(this, this._onVerificationFailed));
+        this._userVerifier.connect('verification-complete', Lang.bind(this, this._onVerificationComplete));
+        this._userVerifier.connect('reset', Lang.bind(this, this._onReset));
+        this._userVerifier.connect('smartcard-status-changed', Lang.bind(this, this._onSmartcardStatusChanged));
+        this._userVerifier.connect('ovirt-user-authenticated', Lang.bind(this, this._onOVirtUserAuthenticated));
        this.smartcardDetected = this._userVerifier.smartcardDetected;

-        this.connect('next', () => {
-                this.updateSensitivity(false);
-                this.startSpinning();
-                if (this._queryingService) {
-                    this._userVerifier.answerQuery(this._queryingService, this._entry.text);
-                } else {
-                    this._preemptiveAnswer = this._entry.text;
-                }
-            });
+        this.connect('next', Lang.bind(this, function() {
+                         this.updateSensitivity(false);
+                         this.startSpinning();
+                         if (this._queryingService) {
+                             this._userVerifier.answerQuery(this._queryingService, this._entry.text);
+                         } else {
+                             this._preemptiveAnswer = this._entry.text;
+                         }
+                     }));

        this.actor = new St.BoxLayout({ style_class: 'login-dialog-prompt-layout',
                                        vertical: true });
-        this.actor.connect('destroy', this._onDestroy.bind(this));
-        this.actor.connect('key-press-event', (actor, event) => {
-                if (event.get_key_symbol() == Clutter.KEY_Escape)
-                    this.cancel();
-                return Clutter.EVENT_PROPAGATE;
-            });
+        this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
+        this.actor.connect('key-press-event',
+                           Lang.bind(this, function(actor, event) {
+                               if (event.get_key_symbol() == Clutter.KEY_Escape) {
+                                   this.cancel();
+                               }
+                               return Clutter.EVENT_PROPAGATE;
+                           }));

        this._userWell = new St.Bin({ x_fill: true,
                                      x_align: St.Align.START });
@ -134,18 +136,21 @@ var AuthPrompt = new Lang.Class({
        this._defaultButtonWell.add_child(this._spinner.actor);
    },

-    _onDestroy() {
+    _onDestroy: function() {
        this._userVerifier.destroy();
        this._userVerifier = null;
    },

-    _initButtons() {
+    _initButtons: function() {
        this.cancelButton = new St.Button({ style_class: 'modal-dialog-button button',
                                            button_mask: St.ButtonMask.ONE | St.ButtonMask.THREE,
                                            reactive: true,
                                            can_focus: true,
                                            label: _("Cancel") });
-        this.cancelButton.connect('clicked', () => { this.cancel(); });
+        this.cancelButton.connect('clicked',
+                                   Lang.bind(this, function() {
+                                       this.cancel();
+                                   }));
        this._buttonBox.add(this.cancelButton,
                            { expand: false,
                              x_fill: false,
@ -164,7 +169,10 @@ var AuthPrompt = new Lang.Class({
                                          reactive: true,
                                          can_focus: true,
                                          label: _("Next") });
-        this.nextButton.connect('clicked', () => { this.emit('next'); });
+        this.nextButton.connect('clicked',
+                                 Lang.bind(this, function() {
+                                     this.emit('next');
+                                 }));
        this.nextButton.add_style_pseudo_class('default');
        this._buttonBox.add(this.nextButton,
                            { expand: false,
@ -175,19 +183,20 @@ var AuthPrompt = new Lang.Class({

        this._updateNextButtonSensitivity(this._entry.text.length > 0);

-        this._entry.clutter_text.connect('text-changed', () => {
-            if (!this._userVerifier.hasPendingMessages)
-                this._fadeOutMessage();
+        this._entry.clutter_text.connect('text-changed',
+                                         Lang.bind(this, function() {
+                                             if (!this._userVerifier.hasPendingMessages)
+                                                 this._fadeOutMessage();

-            this._updateNextButtonSensitivity(this._entry.text.length > 0 || this.verificationStatus == AuthPromptStatus.VERIFYING);
-        });
-        this._entry.clutter_text.connect('activate', () => {
+                                             this._updateNextButtonSensitivity(this._entry.text.length > 0 || this.verificationStatus == AuthPromptStatus.VERIFYING);
+                                         }));
+        this._entry.clutter_text.connect('activate', Lang.bind(this, function() {
            if (this.nextButton.reactive)
                this.emit('next');
-        });
+        }));
    },

-    _onAskQuestion(verifier, serviceName, question, passwordChar) {
+    _onAskQuestion: function(verifier, serviceName, question, passwordChar) {
        if (this._queryingService)
            this.clear();

@ -213,12 +222,12 @@ var AuthPrompt = new Lang.Class({
        this.emit('prompted');
    },

-    _onOVirtUserAuthenticated() {
+    _onOVirtUserAuthenticated: function() {
        if (this.verificationStatus != AuthPromptStatus.VERIFICATION_SUCCEEDED)
            this.reset();
    },

-    _onSmartcardStatusChanged() {
+    _onSmartcardStatusChanged: function() {
        this.smartcardDetected = this._userVerifier.smartcardDetected;

        // Most of the time we want to reset if the user inserts or removes
@ -237,36 +246,36 @@ var AuthPrompt = new Lang.Class({
            this.reset();
    },

-    _onShowMessage(userVerifier, message, type) {
+    _onShowMessage: function(userVerifier, message, type) {
        this.setMessage(message, type);
        this.emit('prompted');
    },

-    _onVerificationFailed(userVerifier, canRetry) {
+    _onVerificationFailed: function() {
        this._queryingService = null;
        this.clear();

-        this.updateSensitivity(canRetry);
+        this.updateSensitivity(true);
        this.setActorInDefaultButtonWell(null);
        this.verificationStatus = AuthPromptStatus.VERIFICATION_FAILED;
    },

-    _onVerificationComplete() {
+    _onVerificationComplete: function() {
        this.setActorInDefaultButtonWell(null);
        this.verificationStatus = AuthPromptStatus.VERIFICATION_SUCCEEDED;
        this.cancelButton.reactive = false;
    },

-    _onReset() {
+    _onReset: function() {
        this.verificationStatus = AuthPromptStatus.NOT_VERIFYING;
        this.reset();
    },

-    addActorToDefaultButtonWell(actor) {
+    addActorToDefaultButtonWell: function(actor) {
        this._defaultButtonWell.add_child(actor);
    },

-    setActorInDefaultButtonWell(actor, animate) {
+    setActorInDefaultButtonWell: function(actor, animate) {
        if (!this._defaultButtonWellActor &&
            !actor)
            return;
@ -303,7 +312,7 @@ var AuthPrompt = new Lang.Class({
                                   delay: DEFAULT_BUTTON_WELL_ANIMATION_DELAY,
                                   transition: 'linear',
                                   onCompleteScope: this,
-                                   onComplete() {
+                                   onComplete: function() {
                                      if (wasSpinner) {
                                          if (this._spinner)
                                              this._spinner.stop();
@ -330,25 +339,25 @@ var AuthPrompt = new Lang.Class({
        this._defaultButtonWellActor = actor;
    },

-    startSpinning() {
+    startSpinning: function() {
        this.setActorInDefaultButtonWell(this._spinner.actor, true);
    },

-    stopSpinning() {
+    stopSpinning: function() {
        this.setActorInDefaultButtonWell(null, false);
    },

-    clear() {
+    clear: function() {
        this._entry.text = '';
        this.stopSpinning();
    },

-    setPasswordChar(passwordChar) {
+    setPasswordChar: function(passwordChar) {
        this._entry.clutter_text.set_password_char(passwordChar);
        this._entry.menu.isPassword = passwordChar != '';
    },

-    setQuestion(question) {
+    setQuestion: function(question) {
        this._label.set_text(question);

        this._label.show();
@ -357,7 +366,7 @@ var AuthPrompt = new Lang.Class({
        this._entry.grab_key_focus();
    },

-    getAnswer() {
+    getAnswer: function() {
        let text;

        if (this._preemptiveAnswer) {
@ -370,7 +379,7 @@ var AuthPrompt = new Lang.Class({
        return text;
    },

-    _fadeOutMessage() {
+    _fadeOutMessage: function() {
        if (this._message.opacity == 0)
            return;
        Tweener.removeTweens(this._message);
@ -381,7 +390,7 @@ var AuthPrompt = new Lang.Class({
                         });
    },

-    setMessage(message, type) {
+    setMessage: function(message, type) {
        if (type == GdmUtil.MessageType.ERROR)
            this._message.add_style_class_name('login-dialog-message-warning');
        else
@ -401,18 +410,18 @@ var AuthPrompt = new Lang.Class({
        }
    },

-    _updateNextButtonSensitivity(sensitive) {
+    _updateNextButtonSensitivity: function(sensitive) {
        this.nextButton.reactive = sensitive;
        this.nextButton.can_focus = sensitive;
    },

-    updateSensitivity(sensitive) {
+    updateSensitivity: function(sensitive) {
        this._updateNextButtonSensitivity(sensitive && (this._entry.text.length > 0 || this.verificationStatus == AuthPromptStatus.VERIFYING));
        this._entry.reactive = sensitive;
        this._entry.clutter_text.editable = sensitive;
    },

-    hide() {
+    hide: function() {
        this.setActorInDefaultButtonWell(null, true);
        this.actor.hide();
        this._message.opacity = 0;
@ -423,7 +432,7 @@ var AuthPrompt = new Lang.Class({
        this._entry.set_text('');
    },

-    setUser(user) {
+    setUser: function(user) {
        let oldChild = this._userWell.get_child();
        if (oldChild)
            oldChild.destroy();
@ -434,12 +443,11 @@ var AuthPrompt = new Lang.Class({
        }
    },

-    reset() {
+    reset: function() {
        let oldStatus = this.verificationStatus;
        this.verificationStatus = AuthPromptStatus.NOT_VERIFYING;
        this.cancelButton.reactive = true;
        this.nextButton.label = _("Next");
-        this._preemptiveAnswer = null;

        if (this._userVerifier)
            this._userVerifier.cancel();
@ -472,7 +480,7 @@ var AuthPrompt = new Lang.Class({
        this.emit('reset', beginRequestType);
    },

-    addCharacter(unichar) {
+    addCharacter: function(unichar) {
        if (!this._entry.visible)
            return;

@ -480,7 +488,7 @@ var AuthPrompt = new Lang.Class({
        this._entry.clutter_text.insert_unichar(unichar);
    },

-    begin(params) {
+    begin: function(params) {
        params = Params.parse(params, { userName: null,
                                        hold: null });

@ -494,21 +502,22 @@ var AuthPrompt = new Lang.Class({
        this.verificationStatus = AuthPromptStatus.VERIFYING;
    },

-    finish(onComplete) {
+    finish: function(onComplete) {
        if (!this._userVerifier.hasPendingMessages) {
            this._userVerifier.clear();
            onComplete();
            return;
        }

-        let signalId = this._userVerifier.connect('no-more-messages', () => {
-            this._userVerifier.disconnect(signalId);
-            this._userVerifier.clear();
-            onComplete();
-        });
+        let signalId = this._userVerifier.connect('no-more-messages',
+                                                  Lang.bind(this, function() {
+                                                      this._userVerifier.disconnect(signalId);
+                                                      this._userVerifier.clear();
+                                                      onComplete();
+                                                  }));
    },

-    cancel() {
+    cancel: function() {
        if (this.verificationStatus == AuthPromptStatus.VERIFICATION_SUCCEEDED) {
            return;
        }
--- a/js/gdm/batch.js
+++ b/js/gdm/batch.js
@ -50,7 +50,7 @@ const Signals = imports.signals;
 var Task = new Lang.Class({
    Name: 'Task',

-    _init(scope, handler) {
+    _init: function(scope, handler) {
        if (scope)
            this.scope = scope;
        else
@ -59,7 +59,7 @@ var Task = new Lang.Class({
        this.handler = handler;
    },

-    run() {
+    run: function() {
        if (this.handler)
            return this.handler.call(this.scope);

@ -72,37 +72,39 @@ var Hold = new Lang.Class({
    Name: 'Hold',
    Extends: Task,

-    _init() {
-        this.parent(this, () => this);
+    _init: function() {
+        this.parent(this, function () {
+            return this;
+        });

        this._acquisitions = 1;
    },

-    acquire() {
+    acquire: function() {
        if (this._acquisitions <= 0)
            throw new Error("Cannot acquire hold after it's been released");
        this._acquisitions++;
    },

-    acquireUntilAfter(hold) {
+    acquireUntilAfter: function(hold) {
        if (!hold.isAcquired())
            return;

        this.acquire();
-        let signalId = hold.connect('release', () => {
-            hold.disconnect(signalId);
-            this.release();
-        });
+        let signalId = hold.connect('release', Lang.bind(this, function() {
+                                        hold.disconnect(signalId);
+                                        this.release();
+                                    }));
    },

-    release() {
+    release: function() {
        this._acquisitions--;

        if (this._acquisitions == 0)
            this.emit('release');
    },

-    isAcquired() {
+    isAcquired: function() {
        return this._acquisitions > 0;
    }
 });
@ -112,7 +114,7 @@ var Batch = new Lang.Class({
    Name: 'Batch',
    Extends: Task,

-    _init(scope, tasks) {
+    _init: function(scope, tasks) {
        this.parent();

        this.tasks = [];
@ -132,11 +134,11 @@ var Batch = new Lang.Class({
        }
    },

-    process() {
+    process: function() {
        throw new Error('Not implemented');
    },

-    runTask() {
+    runTask: function() {
        if (!(this._currentTaskIndex in this.tasks)) {
            return null;
        }
@ -144,11 +146,11 @@ var Batch = new Lang.Class({
        return this.tasks[this._currentTaskIndex].run();
    },

-    _finish() {
+    _finish: function() {
        this.hold.release();
    },

-    nextTask() {
+    nextTask: function() {
        this._currentTaskIndex++;

        // if the entire batch of tasks is finished, release
@ -161,7 +163,7 @@ var Batch = new Lang.Class({
        this.process();
    },

-    _start() {
+    _start: function() {
        // acquire a hold to get released when the entire
        // batch of tasks is finished
        this.hold = new Hold();
@ -169,7 +171,7 @@ var Batch = new Lang.Class({
        this.process();
    },

-    run() {
+    run: function() {
        this._start();

        // hold may be destroyed at this point
@ -177,7 +179,7 @@ var Batch = new Lang.Class({
        return this.hold;
    },

-    cancel() {
+    cancel: function() {
        this.tasks = this.tasks.splice(0, this._currentTaskIndex + 1);
    }
 });
@ -187,7 +189,7 @@ var ConcurrentBatch = new Lang.Class({
    Name: 'ConcurrentBatch',
    Extends: Batch,

-    process() {
+    process: function() {
       let hold = this.runTask();

       if (hold) {
@ -206,16 +208,17 @@ var ConsecutiveBatch = new Lang.Class({
    Name: 'ConsecutiveBatch',
    Extends: Batch,

-    process() {
+    process: function() {
       let hold = this.runTask();

       if (hold && hold.isAcquired()) {
           // This task is inhibiting the batch. Wait on it
           // before processing the next one.
-           let signalId = hold.connect('release', () => {
-               hold.disconnect(signalId);
-               this.nextTask();
-           });
+           let signalId = hold.connect('release',
+                                       Lang.bind(this, function() {
+                                           hold.disconnect(signalId);
+                                           this.nextTask();
+                                       }));
           return;
       } else {
           // This task finished, process the next one
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
--- a/js/gdm/oVirt.js
+++ b/js/gdm/oVirt.js
@ -29,28 +29,28 @@ function OVirtCredentials() {

 var OVirtCredentialsManager = new Lang.Class({
    Name: 'OVirtCredentialsManager',
-    _init() {
+    _init: function() {
        this._token = null;

        this._credentials = new OVirtCredentials();
        this._credentials.connectSignal('UserAuthenticated',
-                                        this._onUserAuthenticated.bind(this));
+                                        Lang.bind(this, this._onUserAuthenticated));
    },

-    _onUserAuthenticated(proxy, sender, [token]) {
+    _onUserAuthenticated: function(proxy, sender, [token]) {
        this._token = token;
        this.emit('user-authenticated', token);
    },

-    hasToken() {
+    hasToken: function() {
        return this._token != null;
    },

-    getToken() {
+    getToken: function() {
        return this._token;
    },

-    resetToken() {
+    resetToken: function() {
        this._token = null;
    }
 });
--- a/js/gdm/realmd.js
+++ b/js/gdm/realmd.js
@ -62,21 +62,21 @@ const Realm = Gio.DBusProxy.makeProxyWrapper(RealmIface);
 var Manager = new Lang.Class({
    Name: 'Manager',

-    _init(parentActor) {
+    _init: function(parentActor) {
        this._aggregateProvider = Provider(Gio.DBus.system,
                                           'org.freedesktop.realmd',
                                           '/org/freedesktop/realmd',
-                                           this._reloadRealms.bind(this))
+                                           Lang.bind(this, this._reloadRealms))
        this._realms = {};

        this._signalId = this._aggregateProvider.connect('g-properties-changed',
-            (proxy, properties) => {
-                if ('Realms' in properties.deep_unpack())
-                    this._reloadRealms();
-            });
+                                        Lang.bind(this, function(proxy, properties) {
+                                            if ('Realms' in properties.deep_unpack())
+                                                this._reloadRealms();
+                                        }));
    },

-    _reloadRealms() {
+    _reloadRealms: function() {
        let realmPaths = this._aggregateProvider.Realms;

        if (!realmPaths)
@ -86,11 +86,11 @@ var Manager = new Lang.Class({
            let realm = Realm(Gio.DBus.system,
                              'org.freedesktop.realmd',
                              realmPaths[i],
-                              this._onRealmLoaded.bind(this));
+                              Lang.bind(this, this._onRealmLoaded));
        }
    },

-    _reloadRealm(realm) {
+    _reloadRealm: function(realm) {
        if (!realm.Configured) {
            if (this._realms[realm.get_object_path()])
                delete this._realms[realm.get_object_path()];
@ -103,19 +103,20 @@ var Manager = new Lang.Class({
        this._updateLoginFormat();
    },

-    _onRealmLoaded(realm, error) {
+    _onRealmLoaded: function(realm, error) {
        if (error)
            return;

        this._reloadRealm(realm);

-        realm.connect('g-properties-changed', (proxy, properties) => {
-            if ('Configured' in properties.deep_unpack())
-                this._reloadRealm(realm);
-        });
+        realm.connect('g-properties-changed',
+                      Lang.bind(this, function(proxy, properties) {
+                                if ('Configured' in properties.deep_unpack())
+                                    this._reloadRealm(realm);
+                                }));
    },

-    _updateLoginFormat() {
+    _updateLoginFormat: function() {
        let newLoginFormat;

        for (let realmPath in this._realms) {
@ -141,11 +142,13 @@ var Manager = new Lang.Class({
        return this._loginFormat;
    },

-    release() {
+    release: function() {
        Service(Gio.DBus.system,
                'org.freedesktop.realmd',
                '/org/freedesktop/realmd',
-                service => { service.ReleaseRemote(); });
+                function(service) {
+                    service.ReleaseRemote();
+                });
        this._aggregateProvider.disconnect(this._signalId);
        this._realms = { };
        this._updateLoginFormat();
--- a/js/gdm/util.js
+++ b/js/gdm/util.js
@ -60,7 +60,7 @@ function fadeInActor(actor) {
                       height: naturalHeight,
                       time: FADE_ANIMATION_TIME,
                       transition: 'easeOutQuad',
-                       onComplete() {
+                       onComplete: function() {
                           this.set_height(-1);
                           hold.release();
                       },
@ -82,7 +82,7 @@ function fadeOutActor(actor) {
                       height: 0,
                       time: FADE_ANIMATION_TIME,
                       transition: 'easeOutQuad',
-                       onComplete() {
+                       onComplete: function() {
                           this.hide();
                           this.set_height(-1);
                           hold.release();
@ -111,7 +111,7 @@ function cloneAndFadeOutActor(actor) {
                     { opacity: 0,
                       time: CLONE_FADE_ANIMATION_TIME,
                       transition: 'easeOutQuad',
-                       onComplete() {
+                       onComplete: function() {
                           clone.destroy();
                           hold.release();
                       }
@ -122,7 +122,7 @@ function cloneAndFadeOutActor(actor) {
 var ShellUserVerifier = new Lang.Class({
    Name: 'ShellUserVerifier',

-    _init(client, params) {
+    _init: function(client, params) {
        params = Params.parse(params, { reauthenticationOnly: false });
        this._reauthOnly = params.reauthenticationOnly;

@ -133,7 +133,7 @@ var ShellUserVerifier = new Lang.Class({

        this._settings = new Gio.Settings({ schema_id: LOGIN_SCREEN_SCHEMA });
        this._settings.connect('changed',
-                               this._updateDefaultService.bind(this));
+                               Lang.bind(this, this._updateDefaultService));
        this._updateDefaultService();

        this._fprintManager = Fprint.FprintManager();
@ -147,9 +147,9 @@ var ShellUserVerifier = new Lang.Class({
        this._checkForSmartcard();

        this._smartcardInsertedId = this._smartcardManager.connect('smartcard-inserted',
-                                                                   this._checkForSmartcard.bind(this));
+                                                                   Lang.bind(this, this._checkForSmartcard));
        this._smartcardRemovedId = this._smartcardManager.connect('smartcard-removed',
-                                                                  this._checkForSmartcard.bind(this));
+                                                                  Lang.bind(this, this._checkForSmartcard));

        this._messageQueue = [];
        this._messageQueueTimeoutId = 0;
@ -164,10 +164,10 @@ var ShellUserVerifier = new Lang.Class({
            this._oVirtUserAuthenticated(this._oVirtCredentialsManager.getToken());

        this._oVirtUserAuthenticatedId = this._oVirtCredentialsManager.connect('user-authenticated',
-                                                                               this._oVirtUserAuthenticated.bind(this));
+                                                                               Lang.bind(this, this._oVirtUserAuthenticated));
    },

-    begin(userName, hold) {
+    begin: function(userName, hold) {
        this._cancellable = new Gio.Cancellable();
        this._hold = hold;
        this._userName = userName;
@ -179,13 +179,13 @@ var ShellUserVerifier = new Lang.Class({
            // If possible, reauthenticate an already running session,
            // so any session specific credentials get updated appropriately
            this._client.open_reauthentication_channel(userName, this._cancellable,
-                                                       this._reauthenticationChannelOpened.bind(this));
+                                                       Lang.bind(this, this._reauthenticationChannelOpened));
        } else {
-            this._client.get_user_verifier(this._cancellable, this._userVerifierGot.bind(this));
+            this._client.get_user_verifier(this._cancellable, Lang.bind(this, this._userVerifierGot));
        }
    },

-    cancel() {
+    cancel: function() {
        if (this._cancellable)
            this._cancellable.cancel();

@ -195,14 +195,14 @@ var ShellUserVerifier = new Lang.Class({
        }
    },

-    _clearUserVerifier() {
+    _clearUserVerifier: function() {
        if (this._userVerifier) {
            this._userVerifier.run_dispose();
            this._userVerifier = null;
        }
    },

-    clear() {
+    clear: function() {
        if (this._cancellable) {
            this._cancellable.cancel();
            this._cancellable = null;
@ -212,7 +212,7 @@ var ShellUserVerifier = new Lang.Class({
        this._clearMessageQueue();
    },

-    destroy() {
+    destroy: function() {
        this.clear();

        this._settings.run_dispose();
@ -226,23 +226,24 @@ var ShellUserVerifier = new Lang.Class({
        this._oVirtCredentialsManager = null;
    },

-    answerQuery(serviceName, answer) {
+    answerQuery: function(serviceName, answer) {
        if (!this.hasPendingMessages) {
            this._userVerifier.call_answer_query(serviceName, answer, this._cancellable, null);
        } else {
-            let signalId = this.connect('no-more-messages', () => {
-                this.disconnect(signalId);
-                this._userVerifier.call_answer_query(serviceName, answer, this._cancellable, null);
-            });
+            let signalId = this.connect('no-more-messages',
+                                        Lang.bind(this, function() {
+                                            this.disconnect(signalId);
+                                            this._userVerifier.call_answer_query(serviceName, answer, this._cancellable, null);
+                                        }));
        }
    },

-    _getIntervalForMessage(message) {
+    _getIntervalForMessage: function(message) {
        // We probably could be smarter here
        return message.length * USER_READ_TIME;
    },

-    finishMessageQueue() {
+    finishMessageQueue: function() {
        if (!this.hasPendingMessages)
            return;

@ -252,7 +253,7 @@ var ShellUserVerifier = new Lang.Class({
        this.emit('no-more-messages');
    },

-    _queueMessageTimeout() {
+    _queueMessageTimeout: function() {
        if (this._messageQueue.length == 0) {
            this.finishMessageQueue();
            return;
@ -267,15 +268,15 @@ var ShellUserVerifier = new Lang.Class({

        this._messageQueueTimeoutId = GLib.timeout_add(GLib.PRIORITY_DEFAULT,
                                                       message.interval,
-                                                       () => {
+                                                       Lang.bind(this, function() {
                                                           this._messageQueueTimeoutId = 0;
                                                           this._queueMessageTimeout();
                                                           return GLib.SOURCE_REMOVE;
-                                                       });
+                                                       }));
        GLib.Source.set_name_by_id(this._messageQueueTimeoutId, '[gnome-shell] this._queueMessageTimeout');
    },

-    _queueMessage(message, messageType) {
+    _queueMessage: function(message, messageType) {
        let interval = this._getIntervalForMessage(message);

        this.hasPendingMessages = true;
@ -283,7 +284,7 @@ var ShellUserVerifier = new Lang.Class({
        this._queueMessageTimeout();
    },

-    _clearMessageQueue() {
+    _clearMessageQueue: function() {
        this.finishMessageQueue();

        if (this._messageQueueTimeoutId != 0) {
@ -293,7 +294,7 @@ var ShellUserVerifier = new Lang.Class({
        this.emit('show-message', null, MessageType.NONE);
    },

-    _checkForFingerprintReader() {
+    _checkForFingerprintReader: function() {
        this._haveFingerprintReader = false;

        if (!this._settings.get_boolean(FINGERPRINT_AUTHENTICATION_KEY) ||
@ -302,21 +303,21 @@ var ShellUserVerifier = new Lang.Class({
            return;
        }

-        this._fprintManager.GetDefaultDeviceRemote(Gio.DBusCallFlags.NONE, this._cancellable,
-            (device, error) => {
+        this._fprintManager.GetDefaultDeviceRemote(Gio.DBusCallFlags.NONE, this._cancellable, Lang.bind(this,
+            function(device, error) {
                if (!error && device) {
                    this._haveFingerprintReader = true;
                    this._updateDefaultService();
                }
-            });
+            }));
    },

-    _oVirtUserAuthenticated(token) {
+    _oVirtUserAuthenticated: function(token) {
        this._preemptingService = OVIRT_SERVICE_NAME;
        this.emit('ovirt-user-authenticated');
    },

-    _checkForSmartcard() {
+    _checkForSmartcard: function() {
        let smartcardDetected;

        if (!this._settings.get_boolean(SMARTCARD_AUTHENTICATION_KEY))
@ -338,7 +339,7 @@ var ShellUserVerifier = new Lang.Class({
        }
    },

-    _reportInitError(where, error) {
+    _reportInitError: function(where, error) {
        logError(error, where);
        this._hold.release();

@ -346,23 +347,20 @@ var ShellUserVerifier = new Lang.Class({
        this._verificationFailed(false);
    },

-    _reauthenticationChannelOpened(client, result) {
+    _reauthenticationChannelOpened: function(client, result) {
        try {
            this._clearUserVerifier();
            this._userVerifier = client.open_reauthentication_channel_finish(result);
-        } catch(e) {
-            if (e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
-                return;
-            if (e.matches(Gio.DBusError, Gio.DBusError.ACCESS_DENIED) &&
+        } catch(e if e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED)) {
+            return;
+        } catch(e if e.matches(Gio.DBusError, Gio.DBusError.ACCESS_DENIED) &&
                !this._reauthOnly) {
-                // Gdm emits org.freedesktop.DBus.Error.AccessDenied when there
-                // is no session to reauthenticate. Fall back to performing
-                // verification from this login session
-                client.get_user_verifier(this._cancellable,
-                                         this._userVerifierGot.bind(this));
-                return;
-            }
-
+            // Gdm emits org.freedesktop.DBus.Error.AccessDenied when there is
+            // no session to reauthenticate. Fall back to performing verification
+            // from this login session
+            client.get_user_verifier(this._cancellable, Lang.bind(this, this._userVerifierGot));
+            return;
+        } catch(e) {
            this._reportInitError('Failed to open reauthentication channel', e);
            return;
        }
@ -373,13 +371,13 @@ var ShellUserVerifier = new Lang.Class({
        this._hold.release();
    },

-    _userVerifierGot(client, result) {
+    _userVerifierGot: function(client, result) {
        try {
            this._clearUserVerifier();
            this._userVerifier = client.get_user_verifier_finish(result);
+        } catch(e if e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED)) {
+            return;
        } catch(e) {
-            if (e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
-                return;
            this._reportInitError('Failed to obtain user verifier', e);
            return;
        }
@ -389,89 +387,84 @@ var ShellUserVerifier = new Lang.Class({
        this._hold.release();
    },

-    _connectSignals() {
-        this._userVerifier.connect('info', this._onInfo.bind(this));
-        this._userVerifier.connect('problem', this._onProblem.bind(this));
-        this._userVerifier.connect('info-query', this._onInfoQuery.bind(this));
-        this._userVerifier.connect('secret-info-query', this._onSecretInfoQuery.bind(this));
-        this._userVerifier.connect('conversation-stopped', this._onConversationStopped.bind(this));
-        this._userVerifier.connect('reset', this._onReset.bind(this));
-        this._userVerifier.connect('verification-complete', this._onVerificationComplete.bind(this));
+    _connectSignals: function() {
+        this._userVerifier.connect('info', Lang.bind(this, this._onInfo));
+        this._userVerifier.connect('problem', Lang.bind(this, this._onProblem));
+        this._userVerifier.connect('info-query', Lang.bind(this, this._onInfoQuery));
+        this._userVerifier.connect('secret-info-query', Lang.bind(this, this._onSecretInfoQuery));
+        this._userVerifier.connect('conversation-stopped', Lang.bind(this, this._onConversationStopped));
+        this._userVerifier.connect('reset', Lang.bind(this, this._onReset));
+        this._userVerifier.connect('verification-complete', Lang.bind(this, this._onVerificationComplete));
    },

-    _getForegroundService() {
+    _getForegroundService: function() {
        if (this._preemptingService)
            return this._preemptingService;

        return this._defaultService;
    },

-    serviceIsForeground(serviceName) {
+    serviceIsForeground: function(serviceName) {
        return serviceName == this._getForegroundService();
    },

-    serviceIsDefault(serviceName) {
+    serviceIsDefault: function(serviceName) {
        return serviceName == this._defaultService;
    },

-    _updateDefaultService() {
+    _updateDefaultService: function() {
        if (this._settings.get_boolean(PASSWORD_AUTHENTICATION_KEY))
            this._defaultService = PASSWORD_SERVICE_NAME;
        else if (this._settings.get_boolean(SMARTCARD_AUTHENTICATION_KEY))
            this._defaultService = SMARTCARD_SERVICE_NAME;
        else if (this._haveFingerprintReader)
            this._defaultService = FINGERPRINT_SERVICE_NAME;
-
-        if (!this._defaultService) {
-            log("no authentication service is enabled, using password authentication");
-            this._defaultService = PASSWORD_SERVICE_NAME;
-        }
    },

-    _startService(serviceName) {
+    _startService: function(serviceName) {
        this._hold.acquire();
        if (this._userName) {
           this._userVerifier.call_begin_verification_for_user(serviceName,
                                                               this._userName,
                                                               this._cancellable,
-                                                               (obj, result) => {
+                                                               Lang.bind(this, function(obj, result) {
               try {
                   obj.call_begin_verification_for_user_finish(result);
+               } catch(e if e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED)) {
+                   return;
               } catch(e) {
-                   if (e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
-                       return;
                   this._reportInitError('Failed to start verification for user', e);
                   return;
               }

               this._hold.release();
-           });
+           }));
        } else {
           this._userVerifier.call_begin_verification(serviceName,
                                                      this._cancellable,
-                                                      (obj, result) => {
+                                                      Lang.bind(this, function(obj, result) {
               try {
                   obj.call_begin_verification_finish(result);
+               } catch(e if e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED)) {
+                   return;
               } catch(e) {
-                   if (e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED))
-                       return;
                   this._reportInitError('Failed to start verification', e);
                   return;
               }

               this._hold.release();
-           });
+           }));
        }
    },

-    _beginVerification() {
+    _beginVerification: function() {
        this._startService(this._getForegroundService());

        if (this._userName && this._haveFingerprintReader && !this.serviceIsForeground(FINGERPRINT_SERVICE_NAME))
            this._startService(FINGERPRINT_SERVICE_NAME);
    },

-    _onInfo(client, serviceName, info) {
+    _onInfo: function(client, serviceName, info) {
        if (this.serviceIsForeground(serviceName)) {
            this._queueMessage(info, MessageType.INFO);
        } else if (serviceName == FINGERPRINT_SERVICE_NAME &&
@ -486,21 +479,21 @@ var ShellUserVerifier = new Lang.Class({
        }
    },

-    _onProblem(client, serviceName, problem) {
+    _onProblem: function(client, serviceName, problem) {
        if (!this.serviceIsForeground(serviceName))
            return;

        this._queueMessage(problem, MessageType.ERROR);
    },

-    _onInfoQuery(client, serviceName, question) {
+    _onInfoQuery: function(client, serviceName, question) {
        if (!this.serviceIsForeground(serviceName))
            return;

        this.emit('ask-question', serviceName, question, '');
    },

-    _onSecretInfoQuery(client, serviceName, secretQuestion) {
+    _onSecretInfoQuery: function(client, serviceName, secretQuestion) {
        if (!this.serviceIsForeground(serviceName))
            return;

@ -513,7 +506,7 @@ var ShellUserVerifier = new Lang.Class({
        this.emit('ask-question', serviceName, secretQuestion, '\u25cf');
    },

-    _onReset() {
+    _onReset: function() {
        // Clear previous attempts to authenticate
        this._failCounter = 0;
        this._updateDefaultService();
@ -521,55 +514,56 @@ var ShellUserVerifier = new Lang.Class({
        this.emit('reset');
    },

-    _onVerificationComplete() {
+    _onVerificationComplete: function() {
        this.emit('verification-complete');
    },

-    _cancelAndReset() {
+    _cancelAndReset: function() {
        this.cancel();
        this._onReset();
    },

-    _retry() {
+    _retry: function() {
        this.begin(this._userName, new Batch.Hold());
    },

-    _verificationFailed(retry) {
+    _verificationFailed: function(retry) {
        // For Not Listed / enterprise logins, immediately reset
        // the dialog
-        // Otherwise, when in login mode we allow ALLOWED_FAILURES attempts.
-        // After that, we go back to the welcome screen.
+        // Otherwise, we allow ALLOWED_FAILURES attempts. After that, we
+        // go back to the welcome screen.

        this._failCounter++;
        let canRetry = retry && this._userName &&
-            (this._reauthOnly ||
-             this._failCounter < this._settings.get_int(ALLOWED_FAILURES_KEY));
+            this._failCounter < this._settings.get_int(ALLOWED_FAILURES_KEY);

        if (canRetry) {
            if (!this.hasPendingMessages) {
                this._retry();
            } else {
-                let signalId = this.connect('no-more-messages', () => {
-                    this.disconnect(signalId);
-                    if (this._cancellable && !this._cancellable.is_cancelled())
-                        this._retry();
-                });
+                let signalId = this.connect('no-more-messages',
+                                            Lang.bind(this, function() {
+                                                this.disconnect(signalId);
+                                                if (this._cancellable && !this._cancellable.is_cancelled())
+                                                    this._retry();
+                                            }));
            }
        } else {
            if (!this.hasPendingMessages) {
                this._cancelAndReset();
            } else {
-                let signalId = this.connect('no-more-messages', () => {
-                    this.disconnect(signalId);
-                    this._cancelAndReset();
-                });
+                let signalId = this.connect('no-more-messages',
+                                            Lang.bind(this, function() {
+                                                this.disconnect(signalId);
+                                                this._cancelAndReset();
+                                            }));
            }
        }

-        this.emit('verification-failed', canRetry);
+        this.emit('verification-failed');
    },

-    _onConversationStopped(client, serviceName) {
+    _onConversationStopped: function(client, serviceName) {
        // If the login failed with the preauthenticated oVirt credentials
        // then discard the credentials and revert to default authentication
        // mechanism.
--- a/js/js-resources.gresource.xml
+++ b/js/js-resources.gresource.xml
@ -43,7 +43,6 @@
    <file>ui/audioDeviceSelection.js</file>
    <file>ui/backgroundMenu.js</file>
    <file>ui/background.js</file>
-    <file>ui/barLevel.js</file>
    <file>ui/boxpointer.js</file>
    <file>ui/calendar.js</file>
    <file>ui/checkBox.js</file>
@ -131,7 +130,6 @@
    <file>ui/status/rfkill.js</file>
    <file>ui/status/volume.js</file>
    <file>ui/status/bluetooth.js</file>
-    <file>ui/status/remoteAccess.js</file>
    <file>ui/status/screencast.js</file>
    <file>ui/status/system.js</file>
    <file>ui/status/thunderbolt.js</file>
--- a/js/misc/extensionUtils.js
+++ b/js/misc/extensionUtils.js
@ -112,8 +112,6 @@ function createExtensionObject(uuid, dir, type) {
    let metadataContents, success, tag;
    try {
        [success, metadataContents, tag] = metadataFile.load_contents(null);
-        if (metadataContents instanceof Uint8Array)
-            metadataContents = imports.byteArray.toString(metadataContents);
    } catch (e) {
        throw new Error('Failed to load metadata.json: ' + e);
    }
@ -163,7 +161,7 @@ function installImporter(extension) {
 var ExtensionFinder = new Lang.Class({
    Name: 'ExtensionFinder',

-    _loadExtension(extensionDir, info, perUserDir) {
+    _loadExtension: function(extensionDir, info, perUserDir) {
        let fileType = info.get_file_type();
        if (fileType != Gio.FileType.DIRECTORY)
            return;
@ -186,11 +184,9 @@ var ExtensionFinder = new Lang.Class({
        this.emit('extension-found', extension);
    },

-    scanExtensions() {
+    scanExtensions: function() {
        let perUserDir = Gio.File.new_for_path(global.userdatadir);
-        FileUtils.collectFromDatadirs('extensions', true, (dir, info) => {
-            this._loadExtension(dir, info, perUserDir);
-        });
+        FileUtils.collectFromDatadirs('extensions', true, Lang.bind(this, this._loadExtension, perUserDir));
    }
 });
 Signals.addSignalMethods(ExtensionFinder.prototype);
--- a/js/misc/history.js
+++ b/js/misc/history.js
@ -10,7 +10,7 @@ var DEFAULT_LIMIT = 512;
 var HistoryManager = new Lang.Class({
    Name: 'HistoryManager',

-    _init(params) {
+    _init: function(params) {
        params = Params.parse(params, { gsettingsKey: null,
                                        limit: DEFAULT_LIMIT,
                                        entry: null });
@ -22,7 +22,7 @@ var HistoryManager = new Lang.Class({
        if (this._key) {
            this._history = global.settings.get_strv(this._key);
            global.settings.connect('changed::' + this._key,
-                                    this._historyChanged.bind(this));
+                                    Lang.bind(this, this._historyChanged));

        } else {
            this._history = [];
@ -32,16 +32,16 @@ var HistoryManager = new Lang.Class({

        if (this._entry) {
            this._entry.connect('key-press-event', 
-                                this._onEntryKeyPress.bind(this));
+                                Lang.bind(this, this._onEntryKeyPress));
        }
    },

-    _historyChanged() {
+    _historyChanged: function() {
        this._history = global.settings.get_strv(this._key);
        this._historyIndex = this._history.length;
    },

-    _setPrevItem(text) {
+    _setPrevItem: function(text) {
        if (this._historyIndex <= 0)
            return false;

@ -52,7 +52,7 @@ var HistoryManager = new Lang.Class({
        return true;
    },

-    _setNextItem(text) {
+    _setNextItem: function(text) {
        if (this._historyIndex >= this._history.length)
            return false;

@ -63,7 +63,7 @@ var HistoryManager = new Lang.Class({
        return true;
    },

-    lastItem() {
+    lastItem: function() {
        if (this._historyIndex != this._history.length) {
            this._historyIndex = this._history.length;
            this._indexChanged();
@ -72,7 +72,7 @@ var HistoryManager = new Lang.Class({
        return this._historyIndex ? this._history[this._historyIndex -1] : null;
    },

-    addItem(input) {
+    addItem: function(input) {
        if (this._history.length == 0 ||
            this._history[this._history.length - 1] != input) {

@ -82,7 +82,7 @@ var HistoryManager = new Lang.Class({
        this._historyIndex = this._history.length;
    },

-    _onEntryKeyPress(entry, event) {
+    _onEntryKeyPress: function(entry, event) {
        let symbol = event.get_key_symbol();
        if (symbol == Clutter.KEY_Up) {
            return this._setPrevItem(entry.get_text());
@ -92,7 +92,7 @@ var HistoryManager = new Lang.Class({
        return Clutter.EVENT_PROPAGATE;
    },

-    _indexChanged() {
+    _indexChanged: function() {
        let current = this._history[this._historyIndex] || '';
        this.emit('changed', current);

@ -100,7 +100,7 @@ var HistoryManager = new Lang.Class({
            this._entry.set_text(current);
    },

-    _save() {
+    _save: function() {
        if (this._history.length > this._limit)
            this._history.splice(0, this._history.length - this._limit);

--- a/js/misc/ibusManager.js
+++ b/js/misc/ibusManager.js
@ -40,7 +40,7 @@ var IBusManager = new Lang.Class({
    _MAX_INPUT_SOURCE_ACTIVATION_TIME: 4000, // ms
    _PRELOAD_ENGINES_DELAY_TIME: 30, // sec

-    _init() {
+    _init: function() {
        IBus.init();

        this._candidatePopup = new IBusCandidatePopup.CandidatePopup();
@ -53,16 +53,16 @@ var IBusManager = new Lang.Class({
        this._preloadEnginesId = 0;

        this._ibus = IBus.Bus.new_async();
-        this._ibus.connect('connected', this._onConnected.bind(this));
-        this._ibus.connect('disconnected', this._clear.bind(this));
+        this._ibus.connect('connected', Lang.bind(this, this._onConnected));
+        this._ibus.connect('disconnected', Lang.bind(this, this._clear));
        // Need to set this to get 'global-engine-changed' emitions
        this._ibus.set_watch_ibus_signal(true);
-        this._ibus.connect('global-engine-changed', this._engineChanged.bind(this));
+        this._ibus.connect('global-engine-changed', Lang.bind(this, this._engineChanged));

        this._spawn();
    },

-    _spawn() {
+    _spawn: function() {
        try {
            Gio.Subprocess.new(['ibus-daemon', '--xim', '--panel', 'disable'],
                               Gio.SubprocessFlags.NONE);
@ -71,7 +71,7 @@ var IBusManager = new Lang.Class({
        }
    },

-    _clear() {
+    _clear: function() {
        if (this._panelService)
            this._panelService.destroy();

@ -87,15 +87,15 @@ var IBusManager = new Lang.Class({
        this._spawn();
    },

-    _onConnected() {
-        this._ibus.list_engines_async(-1, null, this._initEngines.bind(this));
+    _onConnected: function() {
+        this._ibus.list_engines_async(-1, null, Lang.bind(this, this._initEngines));
        this._ibus.request_name_async(IBus.SERVICE_PANEL,
                                      IBus.BusNameFlag.REPLACE_EXISTING,
                                      -1, null,
-                                      this._initPanelService.bind(this));
+                                      Lang.bind(this, this._initPanelService));
    },

-    _initEngines(ibus, result) {
+    _initEngines: function(ibus, result) {
        let enginesList = this._ibus.list_engines_async_finish(result);
        if (enginesList) {
            for (let i = 0; i < enginesList.length; ++i) {
@ -108,18 +108,13 @@ var IBusManager = new Lang.Class({
        }
    },

-    _initPanelService(ibus, result) {
+    _initPanelService: function(ibus, result) {
        let success = this._ibus.request_name_async_finish(result);
        if (success) {
            this._panelService = new IBus.PanelService({ connection: this._ibus.get_connection(),
                                                         object_path: IBus.PATH_PANEL });
            this._candidatePopup.setPanelService(this._panelService);
-            this._panelService.connect('update-property', this._updateProperty.bind(this));
-            this._panelService.connect('set-cursor-location', (ps, x, y, w, h) => {
-                let cursorLocation = { x, y, width: w, height: h };
-                this.emit('set-cursor-location', cursorLocation);
-            });
-
+            this._panelService.connect('update-property', Lang.bind(this, this._updateProperty));
            try {
                // IBus versions older than 1.5.10 have a bug which
                // causes spurious set-content-type emissions when
@ -127,11 +122,11 @@ var IBusManager = new Lang.Class({
                // and hints defeating its intended semantics and
                // confusing users. We thus don't use it in that case.
                _checkIBusVersion(1, 5, 10);
-                this._panelService.connect('set-content-type', this._setContentType.bind(this));
+                this._panelService.connect('set-content-type', Lang.bind(this, this._setContentType));
            } catch (e) {
            }
            // If an engine is already active we need to get its properties
-            this._ibus.get_global_engine_async(-1, null, (i, result) => {
+            this._ibus.get_global_engine_async(-1, null, Lang.bind(this, function(i, result) {
                let engine;
                try {
                    engine = this._ibus.get_global_engine_async_finish(result);
@ -141,20 +136,20 @@ var IBusManager = new Lang.Class({
                    return;
                }
                this._engineChanged(this._ibus, engine.get_name());
-            });
+            }));
            this._updateReadiness();
        } else {
            this._clear();
        }
    },

-    _updateReadiness() {
+    _updateReadiness: function() {
        this._ready = (Object.keys(this._engines).length > 0 &&
                       this._panelService != null);
        this.emit('ready', this._ready);
    },

-    _engineChanged(bus, engineName) {
+    _engineChanged: function(bus, engineName) {
        if (!this._ready)
            return;

@ -164,7 +159,7 @@ var IBusManager = new Lang.Class({
            return;

        this._registerPropertiesId =
-            this._panelService.connect('register-properties', (p, props) => {
+            this._panelService.connect('register-properties', Lang.bind(this, function(p, props) {
                if (!props.get(0))
                    return;

@ -172,29 +167,29 @@ var IBusManager = new Lang.Class({
                this._registerPropertiesId = 0;

                this.emit('properties-registered', this._currentEngineName, props);
-            });
+            }));
    },

-    _updateProperty(panel, prop) {
+    _updateProperty: function(panel, prop) {
        this.emit('property-updated', this._currentEngineName, prop);
    },

-    _setContentType(panel, purpose, hints) {
+    _setContentType: function(panel, purpose, hints) {
        this.emit('set-content-type', purpose, hints);
    },

-    activateProperty(key, state) {
+    activateProperty: function(key, state) {
        this._panelService.property_activate(key, state);
    },

-    getEngineDesc(id) {
+    getEngineDesc: function(id) {
        if (!this._ready || !this._engines.hasOwnProperty(id))
            return null;

        return this._engines[id];
    },

-    setEngine(id, callback) {
+    setEngine: function(id, callback) {
        // Send id even if id == this._currentEngineName
        // because 'properties-registered' signal can be emitted
        // while this._ibusSources == null on a lock screen.
@ -208,7 +203,7 @@ var IBusManager = new Lang.Class({
                                           null, callback);
    },

-    preloadEngines(ids) {
+    preloadEngines: function(ids) {
        if (!this._ibus || ids.length == 0)
            return;

@ -219,7 +214,7 @@ var IBusManager = new Lang.Class({

        this._preloadEnginesId =
            Mainloop.timeout_add_seconds(this._PRELOAD_ENGINES_DELAY_TIME,
-                                         () => {
+                                         Lang.bind(this, function() {
                                             this._ibus.preload_engines_async(
                                                 ids,
                                                 -1,
@ -227,7 +222,7 @@ var IBusManager = new Lang.Class({
                                                 null);
                                             this._preloadEnginesId = 0;
                                             return GLib.SOURCE_REMOVE;
-                                         });
+                                         }));
    },
 });
 Signals.addSignalMethods(IBusManager.prototype);
--- a/js/misc/inputMethod.js
+++ b/js/misc/inputMethod.js
@ -9,27 +9,22 @@ var InputMethod = new Lang.Class({
    Name: 'InputMethod',
    Extends: Clutter.InputMethod,

-    _init() {
+    _init: function() {
        this.parent();
        this._hints = 0;
        this._purpose = 0;
        this._enabled = true;
        this._currentFocus = null;
-        this._currentEvent = null;
-        this._doForwardEvent = false;
        this._ibus = IBus.Bus.new_async();
-        this._ibus.connect('connected', this._onConnected.bind(this));
-        this._ibus.connect('disconnected', this._clear.bind(this));
-        this.connect('notify::can-show-preedit', this._updateCapabilities.bind(this));
+        this._ibus.connect('connected', Lang.bind(this, this._onConnected));
+        this._ibus.connect('disconnected', Lang.bind(this, this._clear));
+        this.connect('notify::can-show-preedit', Lang.bind(this, this._updateCapabilities));

        this._inputSourceManager = Keyboard.getInputSourceManager();
        this._sourceChangedId = this._inputSourceManager.connect('current-source-changed',
-                                                                 this._onSourceChanged.bind(this));
+                                                                 Lang.bind(this, this._onSourceChanged));
        this._currentSource = this._inputSourceManager.currentSource;

-        let deviceManager = Clutter.DeviceManager.get_default();
-        this._virtualDevice = deviceManager.create_virtual_device(Clutter.InputDeviceType.KEYBOARD_DEVICE);
-
        if (this._ibus.is_connected())
            this._onConnected();
    },
@ -38,7 +33,7 @@ var InputMethod = new Lang.Class({
        return this._currentFocus;
    },

-    _updateCapabilities() {
+    _updateCapabilities: function() {
        let caps = 0;

        if (this.can_show_preedit)
@ -53,48 +48,47 @@ var InputMethod = new Lang.Class({
            this._context.set_capabilities(caps);
    },

-    _onSourceChanged() {
+    _onSourceChanged: function() {
        this._currentSource = this._inputSourceManager.currentSource;
    },

-    _onConnected() {
+    _onConnected: function() {
        this._ibus.create_input_context_async ('gnome-shell', -1, null,
-                                               this._setContext.bind(this));
+                                               Lang.bind(this, this._setContext));
    },

-    _setContext(bus, res) {
+    _setContext: function(bus, res) {
        this._context = this._ibus.create_input_context_async_finish(res);
-        this._context.connect('enabled', () => { this._enabled = true });
-        this._context.connect('disabled', () => { this._enabled = false });
-        this._context.connect('commit-text', this._onCommitText.bind(this));
-        this._context.connect('delete-surrounding-text', this._onDeleteSurroundingText.bind(this));
-        this._context.connect('update-preedit-text', this._onUpdatePreeditText.bind(this));
-        this._context.connect('forward-key-event', this._onForwardKeyEvent.bind(this));
+        this._context.connect('enabled', Lang.bind(this, function () { this._enabled = true }));
+        this._context.connect('disabled', Lang.bind(this, function () { this._enabled = false }));
+        this._context.connect('commit-text', Lang.bind(this, this._onCommitText));
+        this._context.connect('delete-surrounding-text', Lang.bind(this, this._onDeleteSurroundingText));
+        this._context.connect('update-preedit-text', Lang.bind(this, this._onUpdatePreeditText));

        this._updateCapabilities();
    },

-    _clear() {
+    _clear: function() {
        this._context = null;
        this._hints = 0;
        this._purpose = 0;
        this._enabled = false;
    },

-    _emitRequestSurrounding() {
+    _emitRequestSurrounding: function() {
        if (this._context.needs_surrounding_text())
            this.emit('request-surrounding');
    },

-    _onCommitText(context, text) {
+    _onCommitText: function(context, text) {
        this.commit(text.get_text());
    },

-    _onDeleteSurroundingText(context) {
+    _onDeleteSurroundingText: function (context) {
        this.delete_surrounding();
    },

-    _onUpdatePreeditText(context, text, pos, visible) {
+    _onUpdatePreeditText: function (context, text, pos, visible) {
        let str = null;
        if (visible && text != null)
            str = text.get_text();
@ -102,25 +96,7 @@ var InputMethod = new Lang.Class({
        this.set_preedit_text(str, pos);
    },

-    _onForwardKeyEvent(context, keyval, keycode, state) {
-        let press = (state & IBus.ModifierType.RELEASE_MASK) == 0;
-
-        if (this._currentEvent) {
-            // If we are handling this same event in filter_key_press(),
-            // just let it go through, sending the same event again will
-            // be silenced away because the key counts as pressed.
-            if (this._currentEvent.get_key_symbol() == keyval &&
-                (this._currentEvent.type() == Clutter.EventType.KEY_PRESS) == press) {
-                this._doForwardEvent = true;
-                return;
-            }
-        }
-
-        this._virtualDevice.notify_key(Clutter.get_current_event_time(), keycode,
-                                       press ? Clutter.KeyState.PRESSED : Clutter.KeyState.RELEASED);
-    },
-
-    vfunc_focus_in(focus) {
+    vfunc_focus_in: function(focus) {
        this._currentFocus = focus;
        if (this._context) {
            this._context.focus_in();
@ -129,7 +105,7 @@ var InputMethod = new Lang.Class({
        }
    },

-    vfunc_focus_out() {
+    vfunc_focus_out: function() {
        this._currentFocus = null;
        if (this._context) {
            this._context.focus_out();
@ -140,7 +116,7 @@ var InputMethod = new Lang.Class({
        this.set_preedit_text(null, 0);
    },

-    vfunc_reset() {
+    vfunc_reset: function() {
        if (this._context) {
            this._context.reset();
            this._emitRequestSurrounding();
@ -150,7 +126,7 @@ var InputMethod = new Lang.Class({
        this.set_preedit_text(null, 0);
    },

-    vfunc_set_cursor_location(rect) {
+    vfunc_set_cursor_location: function(rect) {
        if (this._context) {
            this._context.set_cursor_location(rect.get_x(), rect.get_y(),
                                              rect.get_width(), rect.get_height());
@ -158,12 +134,12 @@ var InputMethod = new Lang.Class({
        }
    },

-    vfunc_set_surrounding(text, cursor, anchor) {
+    vfunc_set_surrounding: function(text, cursor, anchor) {
        if (this._context)
            this._context.set_surrounding_text(text, cursor, anchor);
    },

-    vfunc_update_content_hints(hints) {
+    vfunc_update_content_hints: function(hints) {
        let ibusHints = 0;
        if (hints & Clutter.InputContentHintFlags.COMPLETION)
            ibusHints |= IBus.InputHints.WORD_COMPLETION;
@ -183,7 +159,7 @@ var InputMethod = new Lang.Class({
            this._context.set_content_type(this._purpose, this._hints);
    },

-    vfunc_update_content_purpose(purpose) {
+    vfunc_update_content_purpose: function(purpose) {
        let ibusPurpose = 0;
        if (purpose == Clutter.InputContentPurpose.NORMAL)
            ibusPurpose = IBus.InputPurpose.FREE_FORM;
@ -209,10 +185,11 @@ var InputMethod = new Lang.Class({
            this._context.set_content_type(this._purpose, this._hints);
    },

-    vfunc_filter_key_event(event) {
+    vfunc_filter_key_event: function(event) {
        if (!this._context || !this._enabled)
            return false;
-        if (!this._currentSource)
+        if (!this._currentSource ||
+            this._currentSource.type == Keyboard.INPUT_SOURCE_TYPE_XKB)
            return false;

        let state = event.get_state();
@ -221,27 +198,17 @@ var InputMethod = new Lang.Class({

        if (event.type() == Clutter.EventType.KEY_RELEASE)
            state |= IBus.ModifierType.RELEASE_MASK;
-
-        this._currentEvent = event;
-        this._doForwardEvent = false;
-
        this._context.process_key_event_async(event.get_key_symbol(),
                                              event.get_key_code() - 8, // Convert XKB keycodes to evcodes
                                              state, -1, null,
-                                              (context, res) => {
+                                              Lang.bind(this, (context, res) => {
                                                  try {
                                                      let retval = context.process_key_event_async_finish(res);
-
-                                                      if (this._doForwardEvent)
-                                                          retval = false;
-
                                                      this.notify_key_event(event, retval);
-                                                      this._doForwardEvent = false;
-                                                      this._currentEvent = null;
                                                  } catch (e) {
                                                      log('Error processing key on IM: ' + e.message);
                                                  }
-                                              });
+                                              }));
        return true;
    },
 });
--- a/js/misc/jsParse.js
+++ b/js/misc/jsParse.js
@ -23,9 +23,9 @@ function getCompletions(text, commandHeader, globalCompletionList) {
        if (matches) {
            [expr, base, attrHead] = matches;

-            methods = getPropertyNamesFromExpression(base, commandHeader).filter(
-                attr => attr.slice(0, attrHead.length) == attrHead
-            );
+            methods = getPropertyNamesFromExpression(base, commandHeader).filter(function(attr) {
+                return attr.slice(0, attrHead.length) == attrHead;
+            });
        }

        // Look for the empty expression or partially entered words
@ -33,9 +33,9 @@ function getCompletions(text, commandHeader, globalCompletionList) {
        matches = text.match(/^(\w*)$/);
        if (text == '' || matches) {
            [expr, attrHead] = matches;
-            methods = globalCompletionList.filter(
-                attr => attr.slice(0, attrHead.length) == attrHead
-            );
+            methods = globalCompletionList.filter(function(attr) {
+                return attr.slice(0, attrHead.length) == attrHead;
+            });
        }
    }

@ -175,7 +175,7 @@ function getPropertyNamesFromExpression(expr, commandHeader) {

        // Make sure propsUnique contains one key for every
        // property so we end up with a unique list of properties
-        allProps.map(p => propsUnique[p] = null);
+        allProps.map(function(p){ propsUnique[p] = null; });
    }
    return Object.keys(propsUnique).sort();
 }
@ -233,7 +233,7 @@ function isUnsafeExpression(str) {
 // Returns a list of global keywords derived from str
 function getDeclaredConstants(str) {
    let ret = [];
-    str.split(';').forEach(s => {
+    str.split(';').forEach(function(s) {
        let base, keyword;
        let match = s.match(/const\s+(\w+)\s*=/);
        if (match) {
--- a/js/misc/keyboardManager.js
+++ b/js/misc/keyboardManager.js
@ -47,24 +47,24 @@ var KeyboardManager = new Lang.Class({
    // even as a Wayland compositor, we can't bump this.
    MAX_LAYOUTS_PER_GROUP: 4,

-    _init() {
+    _init: function() {
        this._xkbInfo = getXkbInfo();
        this._current = null;
        this._localeLayoutInfo = this._getLocaleLayout();
        this._layoutInfos = {};
    },

-    _applyLayoutGroup(group) {
+    _applyLayoutGroup: function(group) {
        let options = this._buildOptionsString();
        let [layouts, variants] = this._buildGroupStrings(group);
        Meta.get_backend().set_keymap(layouts, variants, options);
    },

-    _applyLayoutGroupIndex(idx) {
+    _applyLayoutGroupIndex: function(idx) {
        Meta.get_backend().lock_layout_group(idx);
    },

-    apply(id) {
+    apply: function(id) {
        let info = this._layoutInfos[id];
        if (!info)
            return;
@ -80,7 +80,7 @@ var KeyboardManager = new Lang.Class({
        this._current = info;
    },

-    reapply() {
+    reapply: function() {
        if (!this._current)
            return;

@ -88,9 +88,7 @@ var KeyboardManager = new Lang.Class({
        this._applyLayoutGroupIndex(this._current.groupIndex);
    },

-    setUserLayouts(ids) {
-        let currentId = this._current ? this._current.id : null;
-        let currentGroupIndex = this._current ? this._current.groupIndex : null;
+    setUserLayouts: function(ids) {
        this._current = null;
        this._layoutInfos = {};

@ -117,14 +115,11 @@ var KeyboardManager = new Lang.Class({
            info.group = group;
            info.groupIndex = groupIndex;

-            if (currentId == id && currentGroupIndex == groupIndex)
-                this._current = info;
-
            i += 1;
        }
    },

-    _getLocaleLayout() {
+    _getLocaleLayout: function() {
        let locale = GLib.get_language_names()[0];
        if (locale.indexOf('_') == -1)
            locale = DEFAULT_LOCALE;
@ -141,18 +136,18 @@ var KeyboardManager = new Lang.Class({
            return { layout: DEFAULT_LAYOUT, variant: DEFAULT_VARIANT };
    },

-    _buildGroupStrings(_group) {
+    _buildGroupStrings: function(_group) {
        let group = _group.concat(this._localeLayoutInfo);
-        let layouts = group.map(g => g.layout).join(',');
-        let variants = group.map(g => g.variant).join(',');
+        let layouts = group.map(function(g) { return g.layout; }).join(',');
+        let variants = group.map(function(g) { return g.variant; }).join(',');
        return [layouts, variants];
    },

-    setKeyboardOptions(options) {
+    setKeyboardOptions: function(options) {
        this._xkbOptions = options;
    },

-    _buildOptionsString() {
+    _buildOptionsString: function() {
        let options = this._xkbOptions.join(',');
        return options;
    }
--- a/js/misc/loginManager.js
+++ b/js/misc/loginManager.js
@ -40,24 +40,14 @@ const SystemdLoginSessionIface = '<node> \
 <signal name="Lock" /> \
 <signal name="Unlock" /> \
 <property name="Active" type="b" access="read" /> \
-<property name="Class" type="s" access="read" /> \
-<property name="Id" type="s" access="read" /> \
 <method name="SetLockedHint"> \
    <arg type="b" direction="in"/> \
 </method> \
 </interface> \
 </node>';

-const SystemdLoginUserIface = '<node> \
-<interface name="org.freedesktop.login1.User"> \
-<property name="Display" type="(so)" access="read" /> \
-<property name="Sessions" type="a(so)" access="read" /> \
-</interface> \
-</node>';
-
 const SystemdLoginManager = Gio.DBusProxy.makeProxyWrapper(SystemdLoginManagerIface);
 const SystemdLoginSession = Gio.DBusProxy.makeProxyWrapper(SystemdLoginSessionIface);
-const SystemdLoginUser = Gio.DBusProxy.makeProxyWrapper(SystemdLoginUserIface);

 function haveSystemd() {
    return GLib.access("/run/systemd/seats", 0) >= 0;
@ -115,18 +105,15 @@ function getLoginManager() {
 var LoginManagerSystemd = new Lang.Class({
    Name: 'LoginManagerSystemd',

-    _init() {
+    _init: function() {
        this._proxy = new SystemdLoginManager(Gio.DBus.system,
                                              'org.freedesktop.login1',
                                              '/org/freedesktop/login1');
-        this._userProxy = new SystemdLoginUser(Gio.DBus.system,
-                                               'org.freedesktop.login1',
-                                               '/org/freedesktop/login1/user/self');
        this._proxy.connectSignal('PrepareForSleep',
-                                  this._prepareForSleep.bind(this));
+                                  Lang.bind(this, this._prepareForSleep));
    },

-    getCurrentSessionProxy(callback) {
+    getCurrentSessionProxy: function(callback) {
        if (this._currentSession) {
            callback (this._currentSession);
            return;
@ -134,47 +121,25 @@ var LoginManagerSystemd = new Lang.Class({

        let sessionId = GLib.getenv('XDG_SESSION_ID');
        if (!sessionId) {
-            log('Unset XDG_SESSION_ID, getCurrentSessionProxy() called outside a user session. Asking logind directly.');
-            let [session, objectPath] = this._userProxy.Display;
-            if (session) {
-                log(`Will monitor session ${session}`);
-                sessionId = session;
-            } else {
-                log('Failed to find "Display" session; are we the greeter?');
-
-                for (let [session, objectPath] of this._userProxy.Sessions) {
-                    let sessionProxy = new SystemdLoginSession(Gio.DBus.system,
-                                                               'org.freedesktop.login1',
-                                                               objectPath);
-                    log(`Considering ${session}, class=${sessionProxy.Class}`);
-                    if (sessionProxy.Class == 'greeter') {
-                        log(`Yes, will monitor session ${session}`);
-                        sessionId = session;
-                        break;
-                    }
-                }
-
-                if (!sessionId) {
-                    log('No, failed to get session from logind.');
-                    return;
-                }
-            }
+            log('Unset XDG_SESSION_ID, getCurrentSessionProxy() called outside a user session.');
+            return;
        }

-        this._proxy.GetSessionRemote(sessionId, (result, error) => {
-            if (error) {
-                logError(error, 'Could not get a proxy for the current session');
-            } else {
-                this._currentSession = new SystemdLoginSession(Gio.DBus.system,
-                                                               'org.freedesktop.login1',
-                                                               result[0]);
-                callback(this._currentSession);
-            }
-        });
+        this._proxy.GetSessionRemote(sessionId, Lang.bind(this,
+            function(result, error) {
+                if (error) {
+                    logError(error, 'Could not get a proxy for the current session');
+                } else {
+                    this._currentSession = new SystemdLoginSession(Gio.DBus.system,
+                                                                   'org.freedesktop.login1',
+                                                                   result[0]);
+                    callback(this._currentSession);
+                }
+            }));
    },

-    canSuspend(asyncCallback) {
-        this._proxy.CanSuspendRemote((result, error) => {
+    canSuspend: function(asyncCallback) {
+        this._proxy.CanSuspendRemote(function(result, error) {
            if (error) {
                asyncCallback(false, false);
            } else {
@ -185,8 +150,8 @@ var LoginManagerSystemd = new Lang.Class({
        });
    },

-    listSessions(asyncCallback) {
-        this._proxy.ListSessionsRemote((result, error) => {
+    listSessions: function(asyncCallback) {
+        this._proxy.ListSessionsRemote(function(result, error) {
            if (error)
                asyncCallback([]);
            else
@ -194,18 +159,18 @@ var LoginManagerSystemd = new Lang.Class({
        });
    },

-    suspend() {
+    suspend: function() {
        this._proxy.SuspendRemote(true);
    },

-    inhibit(reason, callback) {
+    inhibit: function(reason, callback) {
        let inVariant = GLib.Variant.new('(ssss)',
                                         ['sleep',
                                          'GNOME Shell',
                                          reason,
                                          'delay']);
        this._proxy.call_with_unix_fd_list('Inhibit', inVariant, 0, -1, null, null,
-            (proxy, result) => {
+            Lang.bind(this, function(proxy, result) {
                let fd = -1;
                try {
                    let [outVariant, fdList] = proxy.call_with_unix_fd_list_finish(result);
@ -215,10 +180,10 @@ var LoginManagerSystemd = new Lang.Class({
                    logError(e, "Error getting systemd inhibitor");
                    callback(null);
                }
-            });
+            }));
    },

-    _prepareForSleep(proxy, sender, [aboutToSuspend]) {
+    _prepareForSleep: function(proxy, sender, [aboutToSuspend]) {
        this.emit('prepare-for-sleep', aboutToSuspend);
    }
 });
@ -227,26 +192,26 @@ Signals.addSignalMethods(LoginManagerSystemd.prototype);
 var LoginManagerDummy = new Lang.Class({
    Name: 'LoginManagerDummy',

-    getCurrentSessionProxy(callback) {
+    getCurrentSessionProxy: function(callback) {
        // we could return a DummySession object that fakes whatever callers
        // expect (at the time of writing: connect() and connectSignal()
        // methods), but just never calling the callback should be safer
    },

-    canSuspend(asyncCallback) {
+    canSuspend: function(asyncCallback) {
        asyncCallback(false, false);
    },

-    listSessions(asyncCallback) {
+    listSessions: function(asyncCallback) {
        asyncCallback([]);
    },

-    suspend() {
+    suspend: function() {
        this.emit('prepare-for-sleep', true);
        this.emit('prepare-for-sleep', false);
    },

-    inhibit(reason, callback) {
+    inhibit: function(reason, callback) {
        callback(null);
    }
 });
--- a/js/misc/modemManager.js
+++ b/js/misc/modemManager.js
@ -133,22 +133,22 @@ const ModemCdmaProxy = Gio.DBusProxy.makeProxyWrapper(ModemCdmaInterface);
 var ModemGsm = new Lang.Class({
    Name: 'ModemGsm',

-    _init(path) {
+    _init: function(path) {
        this._proxy = new ModemGsmNetworkProxy(Gio.DBus.system, 'org.freedesktop.ModemManager', path);

        this.signal_quality = 0;
        this.operator_name = null;

        // Code is duplicated because the function have different signatures
-        this._proxy.connectSignal('SignalQuality', (proxy, sender, [quality]) => {
+        this._proxy.connectSignal('SignalQuality', Lang.bind(this, function(proxy, sender, [quality]) {
            this.signal_quality = quality;
            this.emit('notify::signal-quality');
-        });
-        this._proxy.connectSignal('RegistrationInfo', (proxy, sender, [status, code, name]) => {
+        }));
+        this._proxy.connectSignal('RegistrationInfo', Lang.bind(this, function(proxy, sender, [status, code, name]) {
            this.operator_name = _findProviderForMccMnc(name, code);
            this.emit('notify::operator-name');
-        });
-        this._proxy.GetRegistrationInfoRemote(([result], err) => {
+        }));
+        this._proxy.GetRegistrationInfoRemote(Lang.bind(this, function([result], err) {
            if (err) {
                log(err);
                return;
@ -157,8 +157,8 @@ var ModemGsm = new Lang.Class({
            let [status, code, name] = result;
            this.operator_name = _findProviderForMccMnc(name, code);
            this.emit('notify::operator-name');
-        });
-        this._proxy.GetSignalQualityRemote((result, err) => {
+        }));
+        this._proxy.GetSignalQualityRemote(Lang.bind(this, function(result, err) {
            if (err) {
                // it will return an error if the device is not connected
                this.signal_quality = 0;
@ -167,7 +167,7 @@ var ModemGsm = new Lang.Class({
                this.signal_quality = quality;
            }
            this.emit('notify::signal-quality');
-        });
+        }));
    }
 });
 Signals.addSignalMethods(ModemGsm.prototype);
@ -175,12 +175,12 @@ Signals.addSignalMethods(ModemGsm.prototype);
 var ModemCdma = new Lang.Class({
    Name: 'ModemCdma',

-    _init(path) {
+    _init: function(path) {
        this._proxy = new ModemCdmaProxy(Gio.DBus.system, 'org.freedesktop.ModemManager', path);

        this.signal_quality = 0;
        this.operator_name = null;
-        this._proxy.connectSignal('SignalQuality', (proxy, sender, params) => {
+        this._proxy.connectSignal('SignalQuality', Lang.bind(this, function(proxy, sender, params) {
            this.signal_quality = params[0];
            this.emit('notify::signal-quality');

@ -188,8 +188,8 @@ var ModemCdma = new Lang.Class({
            // and we can finally call GetServingSystem
            if (this.operator_name == null)
                this._refreshServingSystem();
-        });
-        this._proxy.GetSignalQualityRemote((result, err) => {
+        }));
+        this._proxy.GetSignalQualityRemote(Lang.bind(this, function(result, err) {
            if (err) {
                // it will return an error if the device is not connected
                this.signal_quality = 0;
@ -198,11 +198,11 @@ var ModemCdma = new Lang.Class({
                this.signal_quality = quality;
            }
            this.emit('notify::signal-quality');
-        });
+        }));
    },

-    _refreshServingSystem() {
-        this._proxy.GetServingSystemRemote(([result], err) => {
+    _refreshServingSystem: function() {
+        this._proxy.GetServingSystemRemote(Lang.bind(this, function([result], err) {
            if (err) {
                // it will return an error if the device is not connected
                this.operator_name = null;
@ -212,7 +212,7 @@ var ModemCdma = new Lang.Class({
                this.operator_name = _findProviderForSid(sid)
            }
            this.emit('notify::operator-name');
-        });
+        }));
    }
 });
 Signals.addSignalMethods(ModemCdma.prototype);
@ -247,40 +247,40 @@ const BroadbandModemCdmaProxy = Gio.DBusProxy.makeProxyWrapper(BroadbandModemCdm
 var BroadbandModem = new Lang.Class({
    Name: 'BroadbandModem',

-    _init(path, capabilities) {
+    _init: function(path, capabilities) {
        this._proxy = new BroadbandModemProxy(Gio.DBus.system, 'org.freedesktop.ModemManager1', path);
        this._proxy_3gpp = new BroadbandModem3gppProxy(Gio.DBus.system, 'org.freedesktop.ModemManager1', path);
        this._proxy_cdma = new BroadbandModemCdmaProxy(Gio.DBus.system, 'org.freedesktop.ModemManager1', path);
        this._capabilities = capabilities;

-        this._proxy.connect('g-properties-changed', (proxy, properties) => {
+        this._proxy.connect('g-properties-changed', Lang.bind(this, function(proxy, properties) {
            if ('SignalQuality' in properties.deep_unpack())
                this._reloadSignalQuality();
-        });
+        }));
        this._reloadSignalQuality();

-        this._proxy_3gpp.connect('g-properties-changed', (proxy, properties) => {
+        this._proxy_3gpp.connect('g-properties-changed', Lang.bind(this, function(proxy, properties) {
            let unpacked = properties.deep_unpack();
            if ('OperatorName' in unpacked || 'OperatorCode' in unpacked)
                this._reload3gppOperatorName();
-        });
+        }));
        this._reload3gppOperatorName();

-        this._proxy_cdma.connect('g-properties-changed', (proxy, properties) => {
+        this._proxy_cdma.connect('g-properties-changed', Lang.bind(this, function(proxy, properties) {
            let unpacked = properties.deep_unpack();
            if ('Nid' in unpacked || 'Sid' in unpacked)
                this._reloadCdmaOperatorName();
-        });
+        }));
        this._reloadCdmaOperatorName();
    },

-    _reloadSignalQuality() {
+    _reloadSignalQuality: function() {
        let [quality, recent] = this._proxy.SignalQuality;
        this.signal_quality = quality;
        this.emit('notify::signal-quality');
    },

-    _reloadOperatorName() {
+    _reloadOperatorName: function() {
        let new_name = "";
        if (this.operator_name_3gpp && this.operator_name_3gpp.length > 0)
            new_name += this.operator_name_3gpp;
@ -295,14 +295,14 @@ var BroadbandModem = new Lang.Class({
        this.emit('notify::operator-name');
    },

-    _reload3gppOperatorName() {
+    _reload3gppOperatorName: function() {
        let name = this._proxy_3gpp.OperatorName;
        let code = this._proxy_3gpp.OperatorCode;
        this.operator_name_3gpp = _findProviderForMccMnc(name, code);
        this._reloadOperatorName();
    },

-    _reloadCdmaOperatorName() {
+    _reloadCdmaOperatorName: function() {
        let sid = this._proxy_cdma.Sid;
        this.operator_name_cdma = _findProviderForSid(sid);
        this._reloadOperatorName();
--- a/js/misc/objectManager.js
+++ b/js/misc/objectManager.js
@ -28,7 +28,7 @@ const ObjectManagerInfo = Gio.DBusInterfaceInfo.new_for_xml(ObjectManagerIface);

 var ObjectManager = new Lang.Class({
    Name: 'ObjectManager',
-    _init(params) {
+    _init: function(params) {
        params = Params.parse(params, { connection: null,
                                        name: null,
                                        objectPath: null,
@ -61,10 +61,10 @@ var ObjectManager = new Lang.Class({
        this._numLoadInhibitors = 1;
        this._managerProxy.init_async(GLib.PRIORITY_DEFAULT,
                                      this._cancellable,
-                                      this._onManagerProxyLoaded.bind(this));
+                                      Lang.bind(this, this._onManagerProxyLoaded));
    },

-    _tryToCompleteLoad() {
+    _tryToCompleteLoad: function() {
        if (this._numLoadInhibitors == 0)
            return;

@ -75,7 +75,7 @@ var ObjectManager = new Lang.Class({
        }
    },

-    _addInterface(objectPath, interfaceName, onFinished) {
+    _addInterface: function(objectPath, interfaceName, onFinished) {
        let info = this._interfaceInfos[interfaceName];

        if (!info) {
@ -93,7 +93,7 @@ var ObjectManager = new Lang.Class({

        proxy.init_async(GLib.PRIORITY_DEFAULT,
                         this._cancellable,
-                         (initable, result) => {
+                         Lang.bind(this, function(initable, result) {
               let error = null;
               try {
                   initable.init_finish(result);
@ -127,10 +127,10 @@ var ObjectManager = new Lang.Class({

               if (onFinished)
                   onFinished();
-        });
+        }));
    },

-    _removeInterface(objectPath, interfaceName) {
+    _removeInterface: function(objectPath, interfaceName) {
        if (!this._objects[objectPath])
            return;

@ -156,7 +156,7 @@ var ObjectManager = new Lang.Class({
        }
    },

-    _onManagerProxyLoaded(initable, result) {
+    _onManagerProxyLoaded: function(initable, result) {
        let error = null;
        try {
            initable.init_finish(result);
@ -168,35 +168,35 @@ var ObjectManager = new Lang.Class({
        }

        this._managerProxy.connectSignal('InterfacesAdded',
-                                         (objectManager, sender, [objectPath, interfaces]) => {
+                                         Lang.bind(this, function(objectManager, sender, [objectPath, interfaces]) {
                                             let interfaceNames = Object.keys(interfaces);
                                             for (let i = 0; i < interfaceNames.length; i++)
                                                 this._addInterface(objectPath, interfaceNames[i]);
-                                         });
+                                         }));
        this._managerProxy.connectSignal('InterfacesRemoved',
-                                         (objectManager, sender, [objectPath, interfaceNames]) => {
+                                         Lang.bind(this, function(objectManager, sender, [objectPath, interfaceNames]) {
                                             for (let i = 0; i < interfaceNames.length; i++)
                                                 this._removeInterface(objectPath, interfaceNames[i]);
-                                         });
+                                         }));

        if (Object.keys(this._interfaceInfos).length == 0) {
            this._tryToCompleteLoad();
            return;
        }

-        this._managerProxy.connect('notify::g-name-owner', () => {
+        this._managerProxy.connect('notify::g-name-owner', Lang.bind(this, function() {
            if (this._managerProxy.g_name_owner)
                this._onNameAppeared();
            else
                this._onNameVanished();
-        });
+        }));

        if (this._managerProxy.g_name_owner)
            this._onNameAppeared();
    },

-    _onNameAppeared() {
-        this._managerProxy.GetManagedObjectsRemote((result, error) => {
+    _onNameAppeared: function() {
+        this._managerProxy.GetManagedObjectsRemote(Lang.bind(this, function(result, error) {
            if (!result) {
                if (error) {
                   logError(error, 'could not get remote objects for service ' + this._serviceName + ' path ' + this._managerPath);
@ -226,14 +226,14 @@ var ObjectManager = new Lang.Class({
                    this._numLoadInhibitors++;
                    this._addInterface(objectPath,
                                       interfaceName,
-                                       this._tryToCompleteLoad.bind(this));
+                                       Lang.bind(this, this._tryToCompleteLoad));
                }
            }
            this._tryToCompleteLoad();
-        });
+        }));
    },

-    _onNameVanished() {
+    _onNameVanished: function() {
        let objectPaths = Object.keys(this._objects);
        for (let i = 0; i < objectPaths.length; i++) {
            let object = this._objects[objectPaths];
@ -248,14 +248,14 @@ var ObjectManager = new Lang.Class({
        }
    },

-    _registerInterfaces(interfaces) {
+    _registerInterfaces: function(interfaces) {
        for (let i = 0; i < interfaces.length; i++) {
            let info = Gio.DBusInterfaceInfo.new_for_xml(interfaces[i]);
            this._interfaceInfos[info.name] = info;
        }
    },

-    getProxy(objectPath, interfaceName) {
+    getProxy: function(objectPath, interfaceName) {
        let object = this._objects[objectPath];

        if (!object)
@ -264,7 +264,7 @@ var ObjectManager = new Lang.Class({
        return object[interfaceName];
    },

-    getProxiesForInterface(interfaceName) {
+    getProxiesForInterface: function(interfaceName) {
        let proxyList = this._interfaces[interfaceName];

        if (!proxyList)
@ -273,7 +273,7 @@ var ObjectManager = new Lang.Class({
        return proxyList;
    },

-    getAllProxies() {
+    getAllProxies: function() {
        let proxies = [];

        let objectPaths = Object.keys(this._objects);
--- a/js/misc/params.js
+++ b/js/misc/params.js
@ -2,7 +2,7 @@

 // parse:
 // @params: caller-provided parameter object, or %null
-// @defaults-provided defaults object
+// @defaults: function-provided defaults object
 // @allowExtras: whether or not to allow properties not in @default
 //
 // Examines @params and fills in default values from @defaults for
--- a/js/misc/smartcardManager.js
+++ b/js/misc/smartcardManager.js
@ -27,34 +27,34 @@ function getSmartcardManager() {

 var SmartcardManager = new Lang.Class({
    Name: 'SmartcardManager',
-    _init() {
+    _init: function() {
        this._objectManager = new ObjectManager.ObjectManager({ connection: Gio.DBus.session,
                                                                name: "org.gnome.SettingsDaemon.Smartcard",
                                                                objectPath: '/org/gnome/SettingsDaemon/Smartcard',
                                                                knownInterfaces: [ SmartcardTokenIface ],
-                                                                onLoaded: this._onLoaded.bind(this) });
+                                                                onLoaded: Lang.bind(this, this._onLoaded) });
        this._insertedTokens = {};
        this._loginToken = null;
    },

-    _onLoaded() {
+    _onLoaded: function() {
        let tokens = this._objectManager.getProxiesForInterface('org.gnome.SettingsDaemon.Smartcard.Token');

        for (let i = 0; i < tokens.length; i++)
            this._addToken(tokens[i]);

-        this._objectManager.connect('interface-added', (objectManager, interfaceName, proxy) => {
+        this._objectManager.connect('interface-added', Lang.bind(this, function(objectManager, interfaceName, proxy) {
            if (interfaceName == 'org.gnome.SettingsDaemon.Smartcard.Token')
                this._addToken(proxy);
-        });
+        }));

-        this._objectManager.connect('interface-removed', (objectManager, interfaceName, proxy) => {
+        this._objectManager.connect('interface-removed', Lang.bind(this, function(objectManager, interfaceName, proxy) {
            if (interfaceName == 'org.gnome.SettingsDaemon.Smartcard.Token')
                this._removeToken(proxy);
-        });
+        }));
    },

-    _updateToken(token) {
+    _updateToken: function(token) {
        let objectPath = token.get_object_path();

        delete this._insertedTokens[objectPath];
@ -66,27 +66,28 @@ var SmartcardManager = new Lang.Class({
            this._loginToken = token;
    },

-    _addToken(token) {
+    _addToken: function(token) {
        this._updateToken(token);

-        token.connect('g-properties-changed', (proxy, properties) => {
-            if ('IsInserted' in properties.deep_unpack()) {
-                this._updateToken(token);
+        token.connect('g-properties-changed',
+                      Lang.bind(this, function(proxy, properties) {
+                          if ('IsInserted' in properties.deep_unpack()) {
+                              this._updateToken(token);

-                if (token.IsInserted) {
-                    this.emit('smartcard-inserted', token);
-                } else {
-                    this.emit('smartcard-removed', token);
-                }
-            }
-        });
+                              if (token.IsInserted) {
+                                  this.emit('smartcard-inserted', token);
+                              } else {
+                                  this.emit('smartcard-removed', token);
+                              }
+                          }
+                      }));

        // Emit a smartcard-inserted at startup if it's already plugged in
        if (token.IsInserted)
            this.emit('smartcard-inserted', token);
    },

-    _removeToken(token) {
+    _removeToken: function(token) {
        let objectPath = token.get_object_path();

        if (this._insertedTokens[objectPath] == token) {
@ -100,11 +101,11 @@ var SmartcardManager = new Lang.Class({
        token.disconnectAll();
    },

-    hasInsertedTokens() {
+    hasInsertedTokens: function() {
        return Object.keys(this._insertedTokens).length > 0;
    },

-    hasInsertedLoginToken() {
+    hasInsertedLoginToken: function() {
        if (!this._loginToken)
            return false;

--- a/js/misc/systemActions.js
+++ b/js/misc/systemActions.js
@ -87,7 +87,7 @@ const SystemActions = new Lang.Class({
                                                          null)
    },

-    _init() {
+    _init: function() {
        this.parent();

        this._canHavePowerOff = true;
@ -218,7 +218,7 @@ const SystemActions = new Lang.Class({
        return this._actions.get(LOCK_ORIENTATION_ACTION_ID).iconName;
    },

-    _sensorProxyAppeared() {
+    _sensorProxyAppeared: function() {
        this._sensorProxy = new SensorProxy(Gio.DBus.system, SENSOR_BUS_NAME, SENSOR_OBJECT_PATH,
            (proxy, error)  => {
                if (error) {
@ -231,7 +231,7 @@ const SystemActions = new Lang.Class({
            });
    },

-    _updateOrientationLock() {
+    _updateOrientationLock: function() {
        let available = false;
        if (this._sensorProxy)
            available = this._sensorProxy.HasAccelerometer &&
@ -242,7 +242,7 @@ const SystemActions = new Lang.Class({
        this.notify('can-lock-orientation');
    },

-    _updateOrientationLockIcon() {
+    _updateOrientationLockIcon: function() {
        let locked = this._orientationSettings.get_boolean('orientation-lock');
        let iconName = locked ? 'rotation-locked-symbolic'
                              : 'rotation-allowed-symbolic';
@ -251,14 +251,14 @@ const SystemActions = new Lang.Class({
        this.notify('orientation-lock-icon');
    },

-    _sessionUpdated() {
+    _sessionUpdated: function() {
        this._updateLockScreen();
        this._updatePowerOff();
        this._updateSuspend();
        this._updateMultiUser();
    },

-    forceUpdate() {
+    forceUpdate: function() {
        // Whether those actions are available or not depends on both lockdown
        // settings and Polkit policy - we don't get change notifications for the
        // latter, so their value may be outdated; force an update now
@ -266,7 +266,7 @@ const SystemActions = new Lang.Class({
        this._updateHaveSuspend();
    },

-    getMatchingActions(terms) {
+    getMatchingActions: function(terms) {
        // terms is a list of strings
        terms = terms.map((term) => { return term.toLowerCase(); });

@ -279,15 +279,15 @@ const SystemActions = new Lang.Class({
        return results;
    },

-    getName(id) {
+    getName: function(id) {
        return this._actions.get(id).name;
    },

-    getIconName(id) {
+    getIconName: function(id) {
        return this._actions.get(id).iconName;
    },

-    activateAction(id) {
+    activateAction: function(id) {
        switch (id) {
            case POWER_OFF_ACTION_ID:
                this.activatePowerOff();
@ -317,7 +317,7 @@ const SystemActions = new Lang.Class({
        this.notify('can-lock-screen');
    },

-    _updateHaveShutdown() {
+    _updateHaveShutdown: function() {
        this._session.CanShutdownRemote((result, error) => {
            if (error)
                return;
@ -327,7 +327,7 @@ const SystemActions = new Lang.Class({
        });
    },

-    _updatePowerOff() {
+    _updatePowerOff: function() {
        let disabled = Main.sessionMode.isLocked ||
                       (Main.sessionMode.isGreeter &&
                        this._loginScreenSettings.get_boolean(DISABLE_RESTART_KEY));
@ -335,7 +335,7 @@ const SystemActions = new Lang.Class({
        this.notify('can-power-off');
    },

-    _updateHaveSuspend() {
+    _updateHaveSuspend: function() {
        this._loginManager.canSuspend(
            (canSuspend, needsAuth) => {
                this._canHaveSuspend = canSuspend;
@ -344,7 +344,7 @@ const SystemActions = new Lang.Class({
            });
    },

-    _updateSuspend() {
+    _updateSuspend: function() {
        let disabled = (Main.sessionMode.isLocked &&
                        this._suspendNeedsAuth) ||
                       (Main.sessionMode.isGreeter &&
@ -353,12 +353,12 @@ const SystemActions = new Lang.Class({
        this.notify('can-suspend');
    },

-    _updateMultiUser() {
+    _updateMultiUser: function() {
        this._updateLogout();
        this._updateSwitchUser();
    },

-    _updateSwitchUser() {
+    _updateSwitchUser: function() {
        let allowSwitch = !this._lockdownSettings.get_boolean(DISABLE_USER_SWITCH_KEY);
        let multiUser = this._userManager.can_switch() && this._userManager.has_multiple_users;
        let shouldShowInMode = !Main.sessionMode.isLocked && !Main.sessionMode.isGreeter;
@ -370,7 +370,7 @@ const SystemActions = new Lang.Class({
        return visible;
    },

-    _updateLogout() {
+    _updateLogout: function() {
        let user = this._userManager.get_user(GLib.get_user_name());

        let allowLogout = !this._lockdownSettings.get_boolean(DISABLE_LOG_OUT_KEY);
@ -388,7 +388,7 @@ const SystemActions = new Lang.Class({
        return visible;
    },

-    activateLockOrientation() {
+    activateLockOrientation: function() {
        if (!this._actions.get(LOCK_ORIENTATION_ACTION_ID).available)
            throw new Error('The lock-orientation action is not available!');

@ -396,27 +396,27 @@ const SystemActions = new Lang.Class({
        this._orientationSettings.set_boolean('orientation-lock', !locked);
    },

-    activateLockScreen() {
+    activateLockScreen: function() {
        if (!this._actions.get(LOCK_SCREEN_ACTION_ID).available)
            throw new Error('The lock-screen action is not available!');

        Main.screenShield.lock(true);
    },

-    activateSwitchUser() {
+    activateSwitchUser: function() {
        if (!this._actions.get(SWITCH_USER_ACTION_ID).available)
            throw new Error('The switch-user action is not available!');

        if (Main.screenShield)
            Main.screenShield.lock(false);

-        Clutter.threads_add_repaint_func_full(Clutter.RepaintFlags.POST_PAINT, () => {
+        Clutter.threads_add_repaint_func_full(Clutter.RepaintFlags.POST_PAINT, function() {
            Gdm.goto_login_session_sync(null);
            return false;
        });
    },

-    activateLogout() {
+    activateLogout: function() {
        if (!this._actions.get(LOGOUT_ACTION_ID).available)
            throw new Error('The logout action is not available!');

@ -424,14 +424,14 @@ const SystemActions = new Lang.Class({
        this._session.LogoutRemote(0);
    },

-    activatePowerOff() {
+    activatePowerOff: function() {
        if (!this._actions.get(POWER_OFF_ACTION_ID).available)
            throw new Error('The power-off action is not available!');

        this._session.ShutdownRemote(0);
    },

-    activateSuspend() {
+    activateSuspend: function() {
        if (!this._actions.get(SUSPEND_ACTION_ID).available)
            throw new Error('The suspend action is not available!');

--- a/js/misc/util.js
+++ b/js/misc/util.js
@ -17,7 +17,7 @@ const Params = imports.misc.params;
 var SCROLL_TIME = 0.1;

 // http://daringfireball.net/2010/07/improved_regex_for_matching_urls
-const _balancedParens = '\\([^\\s()<>]+\\)';
+const _balancedParens = '\\((?:[^\\s()<>]+|(?:\\(?:[^\\s()<>]+\\)))*\\)';
 const _leadingJunk = '[\\s`(\\[{\'\\"<\u00AB\u201C\u2018]';
 const _notTrailingJunk = '[^\\s`!()\\[\\]{};:\'\\".,<>?\u00AB\u00BB\u201C\u201D\u2018\u2019]';

@ -136,7 +136,7 @@ function trySpawn(argv)
    // Dummy child watch; we don't want to double-fork internally
    // because then we lose the parent-child relationship, which
    // can break polkit.  See https://bugzilla.redhat.com//show_bug.cgi?id=819275
-    GLib.child_watch_add(GLib.PRIORITY_DEFAULT, pid, () => {});
+    GLib.child_watch_add(GLib.PRIORITY_DEFAULT, pid, function () {});
 }

 // trySpawnCommandLine:
@ -291,10 +291,12 @@ function createTimeLabel(date, params) {
        _desktopSettings = new Gio.Settings({ schema_id: 'org.gnome.desktop.interface' });

    let label = new St.Label({ text: formatTime(date, params) });
-    let id = _desktopSettings.connect('changed::clock-format', () => {
+    let id = _desktopSettings.connect('changed::clock-format', function() {
        label.text = formatTime(date, params);
    });
-    label.connect('destroy', () => { _desktopSettings.disconnect(id); });
+    label.connect('destroy', function() {
+        _desktopSettings.disconnect(id);
+    });
    return label;
 }

@ -314,7 +316,7 @@ function createTimeLabel(date, params) {

 function lowerBound(array, val, cmp) {
    let min, max, mid, v;
-    cmp = cmp || ((a, b) => a - b);
+    cmp = cmp || function(a, b) { return a - b; };

    if (array.length == 0)
        return 0;
@ -352,7 +354,7 @@ var CloseButton = new Lang.Class({
    Name: 'CloseButton',
    Extends: St.Button,

-    _init(boxpointer) {
+    _init: function(boxpointer) {
        this.parent({ style_class: 'notification-close'});

        // This is a bit tricky. St.Bin has its own x-align/y-align properties
@ -369,10 +371,10 @@ var CloseButton = new Lang.Class({

        this._boxPointer = boxpointer;
        if (boxpointer)
-            this._boxPointer.connect('arrow-side-changed', this._sync.bind(this));
+            this._boxPointer.connect('arrow-side-changed', Lang.bind(this, this._sync));
    },

-    _computeBoxPointerOffset() {
+    _computeBoxPointerOffset: function() {
        if (!this._boxPointer || !this._boxPointer.actor.get_stage())
            return 0;

@ -383,7 +385,7 @@ var CloseButton = new Lang.Class({
            return 0;
    },

-    _sync() {
+    _sync: function() {
        let themeNode = this.get_theme_node();

        let offY = this._computeBoxPointerOffset();
@ -391,7 +393,7 @@ var CloseButton = new Lang.Class({
        this.translation_y = themeNode.get_length('-shell-close-overlap-y') + offY;
    },

-    vfunc_style_changed() {
+    vfunc_style_changed: function() {
        this._sync();
        this.parent();
    },
@ -440,7 +442,7 @@ function ensureActorVisibleInScrollView(scrollView, actor) {
 var AppSettingsMonitor = new Lang.Class({
    Name: 'AppSettingsMonitor',

-    _init(appId, schemaId) {
+    _init: function(appId, schemaId) {
        this._appId = appId;
        this._schemaId = schemaId;

@ -452,7 +454,7 @@ var AppSettingsMonitor = new Lang.Class({

        this._appSystem = Shell.AppSystem.get_default();
        this._appSystem.connect('installed-changed',
-                                this._onInstalledChanged.bind(this));
+                                Lang.bind(this, this._onInstalledChanged));
        this._onInstalledChanged();
    },

@ -460,19 +462,19 @@ var AppSettingsMonitor = new Lang.Class({
        return this._app != null && this._settings != null;
    },

-    activateApp() {
+    activateApp: function() {
        if (this._app)
            this._app.activate();
    },

-    watchSetting(key, callback) {
+    watchSetting: function(key, callback) {
        let handler = { id: 0, key: key, callback: callback };
        this._handlers.push(handler);

        this._connectHandler(handler);
    },

-    _connectHandler(handler) {
+    _connectHandler: function(handler) {
        if (!this._settings || handler.id > 0)
            return;

@ -481,13 +483,13 @@ var AppSettingsMonitor = new Lang.Class({
        handler.callback(this._settings, handler.key);
    },

-    _disconnectHandler(handler) {
+    _disconnectHandler: function(handler) {
        if (this._settings && handler.id > 0)
            this._settings.disconnect(handler.id);
        handler.id = 0;
    },

-    _onInstalledChanged() {
+    _onInstalledChanged: function() {
        let hadApp = (this._app != null);
        this._app = this._appSystem.lookup_app(this._appId);
        let haveApp = (this._app != null);
@ -501,7 +503,7 @@ var AppSettingsMonitor = new Lang.Class({
            this._setSettings(null);
    },

-    _setSettings(settings) {
+    _setSettings: function(settings) {
        this._handlers.forEach((handler) => { this._disconnectHandler(handler); });

        let hadSettings = (this._settings != null);
@ -514,7 +516,7 @@ var AppSettingsMonitor = new Lang.Class({
            this.emit('available-changed');
    },

-    _checkSettings() {
+    _checkSettings: function() {
        let schema = this._schemaSource.lookup(this._schemaId, true);
        if (schema) {
            this._setSettings(new Gio.Settings({ settings_schema: schema }));
--- a/js/misc/weather.js
+++ b/js/misc/weather.js
@ -16,7 +16,7 @@ var UPDATE_THRESHOLD = 10 * GLib.TIME_SPAN_MINUTE;
 var WeatherClient = new Lang.Class({
    Name: 'WeatherClient',

-    _init() {
+    _init: function() {
        this._loading = false;
        this._locationValid = false;
        this._lastUpdate = GLib.DateTime.new_from_unix_local(0);
@ -46,11 +46,11 @@ var WeatherClient = new Lang.Class({
            });
        });
        this._permStore.connectSignal('Changed',
-                                      this._onPermStoreChanged.bind(this));
+                                      Lang.bind(this, this._onPermStoreChanged));

        this._locationSettings = new Gio.Settings({ schema_id: 'org.gnome.system.location' });
        this._locationSettings.connect('changed::enabled',
-                                       this._updateAutoLocation.bind(this));
+                                       Lang.bind(this, this._updateAutoLocation));

        this._world = GWeather.Location.get_world();

@ -68,9 +68,9 @@ var WeatherClient = new Lang.Class({
                                                          'org.gnome.Weather.Application');
        this._weatherAppMon.connect('available-changed', () => { this.emit('changed'); });
        this._weatherAppMon.watchSetting('automatic-location',
-                                         this._onAutomaticLocationChanged.bind(this));
+                                         Lang.bind(this, this._onAutomaticLocationChanged));
        this._weatherAppMon.watchSetting('locations',
-                                         this._onLocationsChanged.bind(this));
+                                         Lang.bind(this, this._onLocationsChanged));
    },

    get available() {
@ -89,11 +89,11 @@ var WeatherClient = new Lang.Class({
        return this._weatherInfo;
    },

-    activateApp() {
+    activateApp: function() {
        this._weatherAppMon.activateApp();
    },

-    update() {
+    update: function() {
        if (!this._locationValid)
            return;

@ -112,7 +112,7 @@ var WeatherClient = new Lang.Class({
               this._weatherAuthorized;
    },

-    _loadInfo() {
+    _loadInfo: function() {
        let id = this._weatherInfo.connect('updated', () => {
            this._weatherInfo.disconnect(id);
            this._loading = false;
@ -124,7 +124,7 @@ var WeatherClient = new Lang.Class({
        this._weatherInfo.update();
    },

-    _locationsEqual(loc1, loc2) {
+    _locationsEqual: function(loc1, loc2) {
        if (loc1 == loc2)
            return true;

@ -134,7 +134,7 @@ var WeatherClient = new Lang.Class({
        return loc1.equal(loc2);
    },

-    _setLocation(location) {
+    _setLocation: function(location) {
        if (this._locationsEqual(this._weatherInfo.location, location))
            return;

@ -150,14 +150,14 @@ var WeatherClient = new Lang.Class({
            this.emit('changed');
    },

-    _updateLocationMonitoring() {
+    _updateLocationMonitoring: function() {
        if (this._useAutoLocation) {
            if (this._gclueLocationChangedId != 0 || this._gclueService == null)
                return;

            this._gclueLocationChangedId =
                this._gclueService.connect('notify::location',
-                                           this._onGClueLocationChanged.bind(this));
+                                           Lang.bind(this, this._onGClueLocationChanged));
            this._onGClueLocationChanged();
        } else {
            if (this._gclueLocationChangedId)
@ -166,7 +166,7 @@ var WeatherClient = new Lang.Class({
        }
    },

-    _startGClueService() {
+    _startGClueService: function() {
        if (this._gclueStarting)
            return;

@ -187,7 +187,7 @@ var WeatherClient = new Lang.Class({
            });
    },

-    _onGClueLocationChanged() {
+    _onGClueLocationChanged: function() {
        let geoLocation = this._gclueService.location;
        let location = GWeather.Location.new_detached(geoLocation.description,
                                                      null,
@ -196,7 +196,7 @@ var WeatherClient = new Lang.Class({
        this._setLocation(location);
    },

-    _onAutomaticLocationChanged(settings, key) {
+    _onAutomaticLocationChanged: function(settings, key) {
        let useAutoLocation = settings.get_boolean(key);
        if (this._autoLocationRequested == useAutoLocation)
            return;
@ -206,7 +206,7 @@ var WeatherClient = new Lang.Class({
        this._updateAutoLocation();
    },

-    _updateAutoLocation() {
+    _updateAutoLocation: function() {
        this._updateLocationMonitoring();

        if (this._useAutoLocation)
@ -215,7 +215,7 @@ var WeatherClient = new Lang.Class({
            this._setLocation(this._mostRecentLocation);
    },

-    _onLocationsChanged(settings, key) {
+    _onLocationsChanged: function(settings, key) {
        let serialized = settings.get_value(key).deep_unpack().shift();
        let mostRecentLocation = null;

@ -231,7 +231,7 @@ var WeatherClient = new Lang.Class({
            this._setLocation(this._mostRecentLocation);
    },

-    _onPermStoreChanged(proxy, sender, params) {
+    _onPermStoreChanged: function(proxy, sender, params) {
        let [table, id, deleted, data, perms] = params;

        if (table != 'gnome' || id != 'geolocation')
--- a/js/perf/core.js
+++ b/js/perf/core.js
@ -75,9 +75,9 @@ function run() {
    // Enable recording of timestamps for different points in the frame cycle
    global.frame_timestamps = true;

-    Main.overview.connect('shown', () => {
-        Scripting.scriptEvent('overviewShowDone');
-    });
+    Main.overview.connect('shown', function() {
+                              Scripting.scriptEvent('overviewShowDone');
+                          });

    yield Scripting.sleep(1000);

--- a/js/perf/hwtest.js
+++ b/js/perf/hwtest.js
@ -42,29 +42,35 @@ function waitAndDraw(milliseconds) {
    let timeline = new Clutter.Timeline({ duration: milliseconds });
    timeline.start();

-    timeline.connect('new-frame', (timeline, frame) => {
-        global.stage.queue_redraw();
-    });
+    timeline.connect('new-frame',
+        function(timeline, frame) {
+            global.stage.queue_redraw();
+        });

-    timeline.connect('completed', () => {
-        timeline.stop();
-        if (cb)
-            cb();
-    });
+    timeline.connect('completed',
+        function() {
+            timeline.stop();
+            if (cb)
+                cb();
+        });

-    return callback => { cb = callback; };
+    return function(callback) {
+        cb = callback;
+    };
 }

 function waitSignal(object, signal) {
    let cb;

-    let id = object.connect(signal, () => {
+    let id = object.connect(signal, function() {
        object.disconnect(id);
        if (cb)
            cb();
    });

-    return callback => { cb = callback; };
+    return function(callback) {
+        cb = callback;
+    };
 }

 function extractBootTimestamp() {
@ -136,7 +142,8 @@ function run() {
    global.frame_finish_timestamp = true;

    for (let k = 0; k < 5; k++)
-        yield Scripting.createTestWindow({ maximized: true });
+        yield Scripting.createTestWindow(640, 480,
+                                         { maximized: true });
    yield Scripting.waitTestWindows();

    yield Scripting.sleep(1000);
@ -157,7 +164,8 @@ function run() {
    yield Scripting.destroyTestWindows();
    Main.overview.hide();

-    yield Scripting.createTestWindow({ maximized: true,
+    yield Scripting.createTestWindow(640, 480,
+                                     { maximized: true,
                                       redraws: true});
    yield Scripting.waitTestWindows();

@ -262,7 +270,7 @@ function script_redrawTestDone(time) {
 function script_collectTimings(time) {
    for (let timing in redrawTimes) {
        let times = redrawTimes[timing];
-        times.sort((a, b) => a - b);
+        times.sort(function(a, b) { return a - b });

        let len = times.length;
        let median;
--- a/js/portalHelper/main.js
+++ b/js/portalHelper/main.js
@ -54,7 +54,7 @@ var PortalHeaderBar = new Lang.Class({
    Name: 'PortalHeaderBar',
    Extends: Gtk.HeaderBar,

-    _init() {
+    _init: function() {
        this.parent({ show_close_button: true });

        // See ephy-title-box.c in epiphany for the layout
@ -92,11 +92,11 @@ var PortalHeaderBar = new Lang.Class({
        vbox.show_all();
    },

-    setSubtitle(label) {
+    setSubtitle: function(label) {
        this.subtitleLabel.set_text(label);
    },

-    setSecurityIcon(securityLevel) {
+    setSecurityIcon: function(securityLevel) {
        switch (securityLevel) {
        case PortalHelperSecurityLevel.NOT_YET_DETERMINED:
            this._lockImage.hide();
@ -119,10 +119,10 @@ var PortalWindow = new Lang.Class({
    Name: 'PortalWindow',
    Extends: Gtk.ApplicationWindow,

-    _init(application, url, timestamp, doneCallback) {
+    _init: function(application, url, timestamp, doneCallback) {
        this.parent({ application: application });

-        this.connect('delete-event', this.destroyWindow.bind(this));
+        this.connect('delete-event', Lang.bind(this, this.destroyWindow));
        this._headerBar = new PortalHeaderBar();
        this._headerBar.setSecurityIcon(PortalHelperSecurityLevel.NOT_YET_DETERMINED);
        this.set_titlebar(this._headerBar);
@ -146,12 +146,12 @@ var PortalWindow = new Lang.Class({
        this._webContext.set_network_proxy_settings(WebKit.NetworkProxyMode.NO_PROXY, null);

        this._webView = WebKit.WebView.new_with_context(this._webContext);
-        this._webView.connect('decide-policy', this._onDecidePolicy.bind(this));
-        this._webView.connect('load-changed', this._onLoadChanged.bind(this));
-        this._webView.connect('insecure-content-detected', this._onInsecureContentDetected.bind(this));
-        this._webView.connect('load-failed-with-tls-errors', this._onLoadFailedWithTlsErrors.bind(this));
+        this._webView.connect('decide-policy', Lang.bind(this, this._onDecidePolicy));
+        this._webView.connect('load-changed', Lang.bind(this, this._onLoadChanged));
+        this._webView.connect('insecure-content-detected', Lang.bind(this, this._onInsecureContentDetected));
+        this._webView.connect('load-failed-with-tls-errors', Lang.bind(this, this._onLoadFailedWithTlsErrors));
        this._webView.load_uri(url);
-        this._webView.connect('notify::uri', this._syncUri.bind(this));
+        this._webView.connect('notify::uri', Lang.bind(this, this._syncUri));
        this._syncUri();

        this.add(this._webView);
@ -163,11 +163,11 @@ var PortalWindow = new Lang.Class({
        this.application.set_accels_for_action('app.quit', ['<Primary>q', '<Primary>w']);
    },

-    destroyWindow() {
+    destroyWindow: function() {
        this.destroy();
    },

-    _syncUri() {
+    _syncUri: function() {
        let uri = this._webView.uri;
        if (uri)
            this._headerBar.setSubtitle(GLib.uri_unescape_string(uri, null));
@ -175,12 +175,12 @@ var PortalWindow = new Lang.Class({
            this._headerBar.setSubtitle('');
    },

-    refresh() {
+    refresh: function() {
        this._everSeenRedirect = false;
        this._webView.load_uri(this._originalUrl);
    },

-    vfunc_delete_event(event) {
+    vfunc_delete_event: function(event) {
        if (this._recheckAtExit)
            this._doneCallback(PortalHelperResult.RECHECK);
        else
@ -188,7 +188,7 @@ var PortalWindow = new Lang.Class({
        return false;
    },

-    _onLoadChanged(view, loadEvent) {
+    _onLoadChanged: function(view, loadEvent) {
        if (loadEvent == WebKit.LoadEvent.STARTED) {
            this._headerBar.setSecurityIcon(PortalHelperSecurityLevel.NOT_YET_DETERMINED);
        } else if (loadEvent == WebKit.LoadEvent.COMMITTED) {
@ -202,11 +202,11 @@ var PortalWindow = new Lang.Class({
        }
    },

-    _onInsecureContentDetected() {
+    _onInsecureContentDetected: function () {
        this._headerBar.setSecurityIcon(PortalHelperSecurityLevel.INSECURE);
    },

-    _onLoadFailedWithTlsErrors(view, failingURI, certificate, errors) {
+    _onLoadFailedWithTlsErrors: function (view, failingURI, certificate, errors) {
        this._headerBar.setSecurityIcon(PortalHelperSecurityLevel.INSECURE);
        let uri = new Soup.URI(failingURI);
        this._webContext.allow_tls_certificate_for_host(certificate, uri.get_host());
@ -214,7 +214,7 @@ var PortalWindow = new Lang.Class({
        return true;
    },

-    _onDecidePolicy(view, decision, type) {
+    _onDecidePolicy: function(view, decision, type) {
        if (type == WebKit.PolicyDecisionType.NEW_WINDOW_ACTION) {
            let navigationAction = decision.get_navigation_action();
            if (navigationAction.is_user_gesture()) {
@ -286,7 +286,7 @@ var WebPortalHelper = new Lang.Class({
    Name: 'WebPortalHelper',
    Extends: Gtk.Application,

-    _init() {
+    _init: function() {
        this.parent({ application_id: 'org.gnome.Shell.PortalHelper',
                      flags: Gio.ApplicationFlags.IS_SERVICE,
                      inactivity_timeout: 30000 });
@ -299,30 +299,30 @@ var WebPortalHelper = new Lang.Class({
        this.add_action(action);
    },

-    vfunc_dbus_register(connection, path) {
+    vfunc_dbus_register: function(connection, path) {
        this._dbusImpl.export(connection, path);
        this.parent(connection, path);
        return true;
    },

-    vfunc_dbus_unregister(connection, path) {
+    vfunc_dbus_unregister: function(connection, path) {
        this._dbusImpl.unexport_from_connection(connection);
        this.parent(connection, path);
    },

-    vfunc_activate() {
+    vfunc_activate: function() {
        // If launched manually (for example for testing), force a dummy authentication
        // session with the default url
        this.Authenticate('/org/gnome/dummy', '', 0);
    },

-    Authenticate(connection, url, timestamp) {
+    Authenticate: function(connection, url, timestamp) {
        this._queue.push({ connection: connection, url: url, timestamp: timestamp });

        this._processQueue();
    },

-    Close(connection) {
+    Close: function(connection) {
        for (let i = 0; i < this._queue.length; i++) {
            let obj = this._queue[i];

@ -337,7 +337,7 @@ var WebPortalHelper = new Lang.Class({
        this._processQueue();
    },

-    Refresh(connection) {
+    Refresh: function(connection) {
        for (let i = 0; i < this._queue.length; i++) {
            let obj = this._queue[i];

@ -349,7 +349,7 @@ var WebPortalHelper = new Lang.Class({
        }
    },

-    _processQueue() {
+    _processQueue: function() {
        if (this._queue.length == 0)
            return;

@ -357,9 +357,9 @@ var WebPortalHelper = new Lang.Class({
        if (top.window != null)
            return;

-        top.window = new PortalWindow(this, top.url, top.timestamp, result => {
+        top.window = new PortalWindow(this, top.url, top.timestamp, Lang.bind(this, function(result) {
            this._dbusImpl.emit_signal('Done', new GLib.Variant('(ou)', [top.connection, result]));
-        });
+        }));
    },
 });

--- a/js/ui/accessDialog.js
+++ b/js/ui/accessDialog.js
@ -42,7 +42,7 @@ var AccessDialog = new Lang.Class({
    Name: 'AccessDialog',
    Extends: ModalDialog.ModalDialog,

-    _init(invocation, handle, title, subtitle, body, options) {
+    _init: function(invocation, handle, title, subtitle, body, options) {
        this.parent({ styleClass: 'access-dialog' });

        this._invocation = invocation;
@ -57,7 +57,7 @@ var AccessDialog = new Lang.Class({
        this._buildLayout(title, subtitle, body, options);
    },

-    _buildLayout(title, subtitle, body, options) {
+    _buildLayout: function(title, subtitle, body, options) {
        // No support for non-modal system dialogs, so ignore the option
        //let modal = options['modal'] || true;
        let denyLabel = options['deny_label'] || _("Deny Access");
@ -97,14 +97,14 @@ var AccessDialog = new Lang.Class({
                         }});
    },

-    open() {
+    open: function() {
        this.parent();

        let connection = this._invocation.get_connection();
        this._requestExported = this._request.export(connection, this._handle);
    },

-    CloseAsync(invocation, params) {
+    CloseAsync: function(invocation, params) {
        if (this._invocation.get_sender() != invocation.get_sender()) {
            invocation.return_error_literal(Gio.DBusError,
                                            Gio.DBusError.ACCESS_DENIED,
@ -115,7 +115,7 @@ var AccessDialog = new Lang.Class({
        this._sendResponse(DialogResponse.CLOSED);
    },

-    _sendResponse(response) {
+    _sendResponse: function(response) {
        if (this._requestExported)
            this._request.unexport();
        this._requestExported = false;
@ -140,7 +140,7 @@ var AccessDialog = new Lang.Class({
 var AccessDialogDBus = new Lang.Class({
    Name: 'AccessDialogDBus',

-    _init() {
+    _init: function() {
        this._accessDialog = null;

        this._windowTracker = Shell.WindowTracker.get_default();
@ -151,7 +151,7 @@ var AccessDialogDBus = new Lang.Class({
        Gio.DBus.session.own_name('org.freedesktop.impl.portal.desktop.gnome', Gio.BusNameOwnerFlags.REPLACE, null, null);
    },

-    AccessDialogAsync(params, invocation) {
+    AccessDialogAsync: function(params, invocation) {
        if (this._accessDialog) {
            invocation.return_error_literal(Gio.DBusError,
                                            Gio.DBusError.LIMITS_EXCEEDED,
--- a/js/ui/altTab.js
+++ b/js/ui/altTab.js
@ -62,7 +62,7 @@ var AppSwitcherPopup = new Lang.Class({
    Name: 'AppSwitcherPopup',
    Extends: SwitcherPopup.SwitcherPopup,

-    _init() {
+    _init : function() {
        this.parent();

        this._thumbnails = null;
@ -80,7 +80,7 @@ var AppSwitcherPopup = new Lang.Class({
        this._items = this._switcherList.icons;
    },

-    _allocate(actor, box, flags) {
+    _allocate: function (actor, box, flags) {
        this.parent(actor, box, flags);

        // Allocate the thumbnails
@ -118,7 +118,7 @@ var AppSwitcherPopup = new Lang.Class({
        }
    },

-    _initialSelection(backward, binding) {
+    _initialSelection: function(backward, binding) {
        if (binding == 'switch-group') {
            if (backward) {
                this._select(0, this._items[0].cachedWindows.length - 1);
@ -141,14 +141,14 @@ var AppSwitcherPopup = new Lang.Class({
        }
    },

-    _nextWindow() {
+    _nextWindow : function() {
        // We actually want the second window if we're in the unset state
        if (this._currentWindow == -1)
            this._currentWindow = 0;
        return SwitcherPopup.mod(this._currentWindow + 1,
                                 this._items[this._selectedIndex].cachedWindows.length);
    },
-    _previousWindow() {
+    _previousWindow : function() {
        // Also assume second window here
        if (this._currentWindow == -1)
            this._currentWindow = 1;
@ -156,7 +156,7 @@ var AppSwitcherPopup = new Lang.Class({
                                 this._items[this._selectedIndex].cachedWindows.length);
    },

-    _closeAppWindow(appIndex, windowIndex) {
+    _closeAppWindow: function(appIndex, windowIndex) {
        let appIcon = this._items[appIndex];
        if (!appIcon)
            return;
@ -168,7 +168,7 @@ var AppSwitcherPopup = new Lang.Class({
        window.delete(global.get_current_time());
    },

-    _quitApplication(appIndex) {
+    _quitApplication: function(appIndex) {
        let appIcon = this._items[appIndex];
        if (!appIcon)
            return;
@ -176,7 +176,7 @@ var AppSwitcherPopup = new Lang.Class({
        appIcon.app.request_quit();
    },

-    _keyPressHandler(keysym, action) {
+    _keyPressHandler: function(keysym, action) {
        if (action == Meta.KeyBindingAction.SWITCH_GROUP) {
            if (!this._thumbnailsFocused)
                this._select(this._selectedIndex, 0);
@ -215,7 +215,7 @@ var AppSwitcherPopup = new Lang.Class({
        return Clutter.EVENT_STOP;
    },

-    _scrollHandler(direction) {
+    _scrollHandler: function(direction) {
        if (direction == Clutter.ScrollDirection.UP) {
            if (this._thumbnailsFocused) {
                if (this._currentWindow == 0 || this._currentWindow == -1)
@ -245,7 +245,7 @@ var AppSwitcherPopup = new Lang.Class({
        }
    },

-    _itemActivatedHandler(n) {
+    _itemActivatedHandler: function(n) {
        // If the user clicks on the selected app, activate the
        // selected window; otherwise (eg, they click on an app while
        // !mouseActive) activate the clicked-on app.
@ -255,24 +255,24 @@ var AppSwitcherPopup = new Lang.Class({
            this._select(n);
    },

-    _itemEnteredHandler(n) {
+    _itemEnteredHandler: function(n) {
        this._select(n);
    },

-    _windowActivated(thumbnailList, n) {
+    _windowActivated : function(thumbnailList, n) {
        let appIcon = this._items[this._selectedIndex];
        Main.activateWindow(appIcon.cachedWindows[n]);
        this.destroy();
    },

-    _windowEntered(thumbnailList, n) {
+    _windowEntered : function(thumbnailList, n) {
        if (!this.mouseActive)
            return;

        this._select(this._selectedIndex, n);
    },

-    _windowRemoved(thumbnailList, n) {
+    _windowRemoved : function(thumbnailList, n) {
        let appIcon = this._items[this._selectedIndex];
        if (!appIcon)
            return;
@ -283,7 +283,7 @@ var AppSwitcherPopup = new Lang.Class({
        }
    },

-    _finish(timestamp) {
+    _finish : function(timestamp) {
        let appIcon = this._items[this._selectedIndex];
        if (this._currentWindow < 0)
            appIcon.app.activate_window(appIcon.cachedWindows[0], timestamp);
@ -293,7 +293,7 @@ var AppSwitcherPopup = new Lang.Class({
        this.parent();
    },

-    _onDestroy() {
+    _onDestroy : function() {
        this.parent();

        if (this._thumbnails)
@ -327,7 +327,7 @@ var AppSwitcherPopup = new Lang.Class({
     * then @app will be highlighted, and @window outlined, and the
     * app list will have the keyboard focus.
     */
-    _select(app, window, forceAppFocus) {
+    _select : function(app, window, forceAppFocus) {
        if (app != this._selectedIndex || window == null) {
            if (this._thumbnails)
                this._destroyThumbnails();
@ -353,12 +353,12 @@ var AppSwitcherPopup = new Lang.Class({
                   !forceAppFocus) {
            this._thumbnailTimeoutId = Mainloop.timeout_add (
                THUMBNAIL_POPUP_TIME,
-                this._timeoutPopupThumbnails.bind(this));
+                Lang.bind(this, this._timeoutPopupThumbnails));
            GLib.Source.set_name_by_id(this._thumbnailTimeoutId, '[gnome-shell] this._timeoutPopupThumbnails');
        }
    },

-    _timeoutPopupThumbnails() {
+    _timeoutPopupThumbnails: function() {
        if (!this._thumbnails)
            this._createThumbnails();
        this._thumbnailTimeoutId = 0;
@ -366,27 +366,27 @@ var AppSwitcherPopup = new Lang.Class({
        return GLib.SOURCE_REMOVE;
    },

-    _destroyThumbnails() {
+    _destroyThumbnails : function() {
        let thumbnailsActor = this._thumbnails.actor;
        Tweener.addTween(thumbnailsActor,
                         { opacity: 0,
                           time: THUMBNAIL_FADE_TIME,
                           transition: 'easeOutQuad',
-                           onComplete: () => {
-                               thumbnailsActor.destroy();
-                               this.thumbnailsVisible = false;
-                           }
+                           onComplete: Lang.bind(this, function() {
+                                                            thumbnailsActor.destroy();
+                                                            this.thumbnailsVisible = false;
+                                                        })
                         });
        this._thumbnails = null;
        if  (this._switcherList._items[this._selectedIndex])
            this._switcherList._items[this._selectedIndex].remove_accessible_state (Atk.StateType.EXPANDED);
    },

-    _createThumbnails() {
+    _createThumbnails : function() {
        this._thumbnails = new ThumbnailList (this._items[this._selectedIndex].cachedWindows);
-        this._thumbnails.connect('item-activated', this._windowActivated.bind(this));
-        this._thumbnails.connect('item-entered', this._windowEntered.bind(this));
-        this._thumbnails.connect('item-removed', this._windowRemoved.bind(this));
+        this._thumbnails.connect('item-activated', Lang.bind(this, this._windowActivated));
+        this._thumbnails.connect('item-entered', Lang.bind(this, this._windowEntered));
+        this._thumbnails.connect('item-removed', Lang.bind(this, this._windowRemoved));
        this._thumbnails.actor.connect('destroy', () => {
            this._thumbnails = null;
            this._thumbnailsFocused = false;
@ -403,7 +403,7 @@ var AppSwitcherPopup = new Lang.Class({
                         { opacity: 255,
                           time: THUMBNAIL_FADE_TIME,
                           transition: 'easeOutQuad',
-                           onComplete: () => { this.thumbnailsVisible = true; }
+                           onComplete: Lang.bind(this, function () { this.thumbnailsVisible = true; })
                         });

        this._switcherList._items[this._selectedIndex].add_accessible_state (Atk.StateType.EXPANDED);
@ -413,7 +413,7 @@ var AppSwitcherPopup = new Lang.Class({
 var CyclerHighlight = new Lang.Class({
    Name: 'CyclerHighlight',

-    _init() {
+    _init: function() {
        this._window = null;

        this.actor = new St.Widget({ layout_manager: new Clutter.BinLayout() });
@ -431,8 +431,8 @@ var CyclerHighlight = new Lang.Class({
        this.actor.add_constraint(constraint);

        this.actor.connect('notify::allocation',
-                           this._onAllocationChanged.bind(this));
-        this.actor.connect('destroy', this._onDestroy.bind(this));
+                           Lang.bind(this, this._onAllocationChanged));
+        this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
    },

    set window(w) {
@ -453,7 +453,7 @@ var CyclerHighlight = new Lang.Class({
        this._clone.source = windowActor;
    },

-    _onAllocationChanged() {
+    _onAllocationChanged: function() {
        if (!this._window) {
            this._highlight.set_size(0, 0);
            this._highlight.hide();
@ -466,7 +466,7 @@ var CyclerHighlight = new Lang.Class({
        }
    },

-    _onDestroy() {
+    _onDestroy: function() {
        this.window = null;
    }
 });
@ -476,7 +476,7 @@ var CyclerPopup = new Lang.Class({
    Extends: SwitcherPopup.SwitcherPopup,
    Abstract: true,

-    _init() {
+    _init : function() {
        this.parent();

        this._items = this._getWindows();
@ -490,20 +490,19 @@ var CyclerPopup = new Lang.Class({
        // We don't show an actual popup, so just provide what SwitcherPopup
        // expects instead of inheriting from SwitcherList
        this._switcherList = { actor: new St.Widget(),
-                               highlight: this._highlightItem.bind(this),
-                               connect() {} };
+                               highlight: Lang.bind(this, this._highlightItem),
+                               connect: function() {} };
    },

-    _highlightItem(index, justOutline) {
+    _highlightItem: function(index, justOutline) {
        this._highlight.window = this._items[index];
        global.window_group.set_child_above_sibling(this._highlight.actor, null);
    },

-    _finish() {
+    _finish: function() {
        let window = this._items[this._selectedIndex];
        let ws = window.get_workspace();
-        let workspaceManager = global.workspace_manager;
-        let activeWs = workspaceManager.get_active_workspace();
+        let activeWs = global.screen.get_active_workspace();

        if (window.minimized) {
            Main.wm.skipNextEffect(window.get_compositor_private());
@ -525,7 +524,7 @@ var CyclerPopup = new Lang.Class({
        this.parent();
    },

-    _onDestroy() {
+    _onDestroy: function() {
        this._highlight.actor.destroy();

        this.parent();
@ -537,12 +536,12 @@ var GroupCyclerPopup = new Lang.Class({
    Name: 'GroupCyclerPopup',
    Extends: CyclerPopup,

-    _getWindows() {
+    _getWindows: function() {
        let app = Shell.WindowTracker.get_default().focus_app;
        return app ? app.get_windows() : [];
    },

-    _keyPressHandler(keysym, action) {
+    _keyPressHandler: function(keysym, action) {
        if (action == Meta.KeyBindingAction.CYCLE_GROUP)
            this._select(this._next());
        else if (action == Meta.KeyBindingAction.CYCLE_GROUP_BACKWARD)
@ -558,7 +557,7 @@ var WindowSwitcherPopup = new Lang.Class({
    Name: 'WindowSwitcherPopup',
    Extends: SwitcherPopup.SwitcherPopup,

-    _init() {
+    _init: function() {
        this.parent();
        this._settings = new Gio.Settings({ schema_id: 'org.gnome.shell.window-switcher' });

@ -572,19 +571,12 @@ var WindowSwitcherPopup = new Lang.Class({
        this._items = this._switcherList.icons;
    },

-    _getWindowList() {
-        let workspace = null;
-
-        if (this._settings.get_boolean('current-workspace-only')) {
-            let workspaceManager = global.workspace_manager;
-
-            workspace = workspaceManager.get_active_workspace();
-        }
-
+    _getWindowList: function() {
+        let workspace = this._settings.get_boolean('current-workspace-only') ? global.screen.get_active_workspace() : null;
        return getWindows(workspace);
    },

-    _closeWindow(windowIndex) {
+    _closeWindow: function(windowIndex) {
        let windowIcon = this._items[windowIndex];
        if (!windowIcon)
            return;
@ -592,7 +584,7 @@ var WindowSwitcherPopup = new Lang.Class({
        windowIcon.window.delete(global.get_current_time());
    },

-    _keyPressHandler(keysym, action) {
+    _keyPressHandler: function(keysym, action) {
        if (action == Meta.KeyBindingAction.SWITCH_WINDOWS) {
            this._select(this._next());
        } else if (action == Meta.KeyBindingAction.SWITCH_WINDOWS_BACKWARD) {
@ -611,7 +603,7 @@ var WindowSwitcherPopup = new Lang.Class({
        return Clutter.EVENT_STOP;
    },

-    _finish() {
+    _finish: function() {
        Main.activateWindow(this._items[this._selectedIndex].window);

        this.parent();
@ -622,24 +614,17 @@ var WindowCyclerPopup = new Lang.Class({
    Name: 'WindowCyclerPopup',
    Extends: CyclerPopup,

-    _init() {
+    _init: function() {
        this._settings = new Gio.Settings({ schema_id: 'org.gnome.shell.window-switcher' });
        this.parent();
    },

-    _getWindows() {
-        let workspace = null;
-
-        if (this._settings.get_boolean('current-workspace-only')) {
-            let workspaceManager = global.workspace_manager;
-
-            workspace = workspaceManager.get_active_workspace();
-        }
-
+    _getWindows: function() {
+        let workspace = this._settings.get_boolean('current-workspace-only') ? global.screen.get_active_workspace() : null;
        return getWindows(workspace);
    },

-    _keyPressHandler(keysym, action) {
+    _keyPressHandler: function(keysym, action) {
        if (action == Meta.KeyBindingAction.CYCLE_WINDOWS)
            this._select(this._next());
        else if (action == Meta.KeyBindingAction.CYCLE_WINDOWS_BACKWARD)
@ -654,7 +639,7 @@ var WindowCyclerPopup = new Lang.Class({
 var AppIcon = new Lang.Class({
    Name: 'AppIcon',

-    _init(app) {
+    _init: function(app) {
        this.app = app;
        this.actor = new St.BoxLayout({ style_class: 'alt-tab-app',
                                         vertical: true });
@ -666,7 +651,7 @@ var AppIcon = new Lang.Class({
        this.actor.add(this.label, { x_fill: false });
    },

-    set_size(size) {
+    set_size: function(size) {
        this.icon = this.app.create_icon_texture(size);
        this._iconBin.child = this.icon;
    }
@ -676,7 +661,7 @@ var AppSwitcher = new Lang.Class({
    Name: 'AppSwitcher',
    Extends: SwitcherPopup.SwitcherList,

-    _init(apps, altTabPopup) {
+    _init : function(apps, altTabPopup) {
        this.parent(true);

        this.icons = [];
@ -684,14 +669,8 @@ var AppSwitcher = new Lang.Class({

        let windowTracker = Shell.WindowTracker.get_default();
        let settings = new Gio.Settings({ schema_id: 'org.gnome.shell.app-switcher' });
-
-        let workspace = null;
-        if (settings.get_boolean('current-workspace-only')) {
-            let workspaceManager = global.workspace_manager;
-
-            workspace = workspaceManager.get_active_workspace();
-        }
-
+        let workspace = settings.get_boolean('current-workspace-only') ? global.screen.get_active_workspace()
+                                                                       : null;
        let allWindows = global.display.get_tab_list(Meta.TabList.NORMAL, workspace);

        // Construct the AppIcons, add to the popup
@ -699,9 +678,9 @@ var AppSwitcher = new Lang.Class({
            let appIcon = new AppIcon(apps[i]);
            // Cache the window list now; we don't handle dynamic changes here,
            // and we don't want to be continually retrieving it
-            appIcon.cachedWindows = allWindows.filter(
-                w => windowTracker.get_window_app (w) == appIcon.app
-            );
+            appIcon.cachedWindows = allWindows.filter(function(w) {
+                return windowTracker.get_window_app (w) == appIcon.app;
+            });
            if (appIcon.cachedWindows.length > 0)
                this._addIcon(appIcon);
        }
@ -711,10 +690,10 @@ var AppSwitcher = new Lang.Class({
        this._altTabPopup = altTabPopup;
        this._mouseTimeOutId = 0;

-        this.actor.connect('destroy', this._onDestroy.bind(this));
+        this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
    },

-    _onDestroy() {
+    _onDestroy: function() {
        if (this._mouseTimeOutId != 0)
            Mainloop.source_remove(this._mouseTimeOutId);

@ -723,7 +702,7 @@ var AppSwitcher = new Lang.Class({
        });
    },

-    _setIconSize() {
+    _setIconSize: function() {
        let j = 0;
        while(this._items.length > 1 && this._items[j].style_class != 'item-box') {
                j++;
@ -742,7 +721,9 @@ var AppSwitcher = new Lang.Class({
        let availWidth = primary.width - parentPadding - this.actor.get_theme_node().get_horizontal_padding();

        let scaleFactor = St.ThemeContext.get_for_stage(global.stage).scale_factor;
-        let iconSizes = baseIconSizes.map(s => s * scaleFactor);
+        let iconSizes = baseIconSizes.map(function(s) {
+            return s * scaleFactor;
+        });

        if (this._items.length == 1) {
            this._iconSize = baseIconSizes[0];
@ -763,12 +744,12 @@ var AppSwitcher = new Lang.Class({
        }
    },

-    _getPreferredHeight(actor, forWidth, alloc) {
+    _getPreferredHeight: function (actor, forWidth, alloc) {
        this._setIconSize();
        this.parent(actor, forWidth, alloc);
    },

-    _allocate(actor, box, flags) {
+    _allocate: function (actor, box, flags) {
        // Allocate the main list items
        this.parent(actor, box, flags);

@ -789,22 +770,22 @@ var AppSwitcher = new Lang.Class({

    // We override SwitcherList's _onItemEnter method to delay
    // activation when the thumbnail list is open
-    _onItemEnter(index) {
+    _onItemEnter: function (index) {
        if (this._mouseTimeOutId != 0)
            Mainloop.source_remove(this._mouseTimeOutId);
        if (this._altTabPopup.thumbnailsVisible) {
            this._mouseTimeOutId = Mainloop.timeout_add(APP_ICON_HOVER_TIMEOUT,
-                                                        () => {
-                                                            this._enterItem(index);
-                                                            this._mouseTimeOutId = 0;
-                                                            return GLib.SOURCE_REMOVE;
-                                                        });
+                                                        Lang.bind(this, function () {
+                                                                            this._enterItem(index);
+                                                                            this._mouseTimeOutId = 0;
+                                                                            return GLib.SOURCE_REMOVE;
+                                                        }));
            GLib.Source.set_name_by_id(this._mouseTimeOutId, '[gnome-shell] this._enterItem');
        } else
           this._itemEntered(index);
    },

-    _enterItem(index) {
+    _enterItem: function(index) {
        let [x, y, mask] = global.get_pointer();
        let pickedActor = global.stage.get_actor_at_pos(Clutter.PickMode.ALL, x, y);
        if (this._items[index].contains(pickedActor))
@ -818,7 +799,7 @@ var AppSwitcher = new Lang.Class({
    // in justOutline mode). Apps with multiple windows will normally
    // show a dim arrow, but show a bright arrow when they are
    // highlighted.
-    highlight(n, justOutline) {
+    highlight : function(n, justOutline) {
        if (this.icons[this._curApp]) {
            if (this.icons[this._curApp].cachedWindows.length == 1)
                this._arrows[this._curApp].hide();
@ -837,7 +818,7 @@ var AppSwitcher = new Lang.Class({
        }
    },

-    _addIcon(appIcon) {
+    _addIcon : function(appIcon) {
        this.icons.push(appIcon);
        let item = this.addItem(appIcon.actor, appIcon.label);

@ -848,7 +829,7 @@ var AppSwitcher = new Lang.Class({

        let n = this._arrows.length;
        let arrow = new St.DrawingArea({ style_class: 'switcher-arrow' });
-        arrow.connect('repaint', () => { SwitcherPopup.drawArrow(arrow, St.Side.BOTTOM); });
+        arrow.connect('repaint', function() { SwitcherPopup.drawArrow(arrow, St.Side.BOTTOM); });
        this._list.add_actor(arrow);
        this._arrows.push(arrow);

@ -858,7 +839,7 @@ var AppSwitcher = new Lang.Class({
            item.add_accessible_state (Atk.StateType.EXPANDABLE);
    },

-    _removeIcon(app) {
+    _removeIcon: function(app) {
        let index = this.icons.findIndex(icon => {
            return icon.app == app;
        });
@ -874,7 +855,7 @@ var ThumbnailList = new Lang.Class({
    Name: 'ThumbnailList',
    Extends: SwitcherPopup.SwitcherList,

-    _init(windows) {
+    _init : function(windows) {
        this.parent(false);

        this._labels = new Array();
@ -910,7 +891,7 @@ var ThumbnailList = new Lang.Class({
        this.actor.connect('destroy', this._onDestroy.bind(this));
    },

-    addClones(availHeight) {
+    addClones : function (availHeight) {
        if (!this._thumbnailBins.length)
            return;
        let totalPadding = this._items[0].get_theme_node().get_horizontal_padding() + this._items[0].get_theme_node().get_vertical_padding();
@ -933,9 +914,7 @@ var ThumbnailList = new Lang.Class({
            this._thumbnailBins[i].set_height(binHeight);
            this._thumbnailBins[i].add_actor(clone);

-            clone._destroyId = mutterWindow.connect('destroy', source => {
-                this._removeThumbnail(source, clone);
-            });
+            clone._destroyId = mutterWindow.connect('destroy', Lang.bind(this, this._removeThumbnail, clone));
            this._clones.push(clone);
        }

@ -943,7 +922,7 @@ var ThumbnailList = new Lang.Class({
        this._thumbnailBins = new Array();
    },

-    _removeThumbnail(source, clone) {
+    _removeThumbnail: function(source, clone) {
        let index = this._clones.indexOf(clone);
        if (index === -1)
            return;
@ -959,7 +938,7 @@ var ThumbnailList = new Lang.Class({
            this.actor.destroy();
    },

-    _onDestroy() {
+    _onDestroy: function() {
        this._clones.forEach(clone => {
            if (clone.source)
                clone.source.disconnect(clone._destroyId);
@ -971,7 +950,7 @@ var ThumbnailList = new Lang.Class({
 var WindowIcon = new Lang.Class({
    Name: 'WindowIcon',

-    _init(window, mode) {
+    _init: function(window, mode) {
        this.window = window;

        this.actor = new St.BoxLayout({ style_class: 'alt-tab-app',
@ -1014,7 +993,7 @@ var WindowIcon = new Lang.Class({
        this._icon.set_size(size * scaleFactor, size * scaleFactor);
    },

-    _createAppIcon(app, size) {
+    _createAppIcon: function(app, size) {
        let appIcon = app ? app.create_icon_texture(size)
                          : new St.Icon({ icon_name: 'icon-missing',
                                          icon_size: size });
@ -1029,7 +1008,7 @@ var WindowList = new Lang.Class({
    Name: 'WindowList',
    Extends: SwitcherPopup.SwitcherList,

-    _init(windows, mode) {
+    _init : function(windows, mode) {
        this.parent(true);

        this._label = new St.Label({ x_align: Clutter.ActorAlign.CENTER,
@ -1054,13 +1033,13 @@ var WindowList = new Lang.Class({
        this.actor.connect('destroy', () => { this._onDestroy(); });
    },

-    _onDestroy() {
+    _onDestroy: function() {
        this.icons.forEach(icon => {
            icon.window.disconnect(icon._unmanagedSignalId);
        });
    },

-    _getPreferredHeight(actor, forWidth, alloc) {
+    _getPreferredHeight: function(actor, forWidth, alloc) {
        this.parent(actor, forWidth, alloc);

        let spacing = this.actor.get_theme_node().get_padding(St.Side.BOTTOM);
@ -1069,7 +1048,7 @@ var WindowList = new Lang.Class({
        alloc.natural_size += labelNat + spacing;
    },

-    _allocateTop(actor, box, flags) {
+    _allocateTop: function(actor, box, flags) {
        let childBox = new Clutter.ActorBox();
        childBox.x1 = box.x1;
        childBox.x2 = box.x2;
@ -1082,13 +1061,13 @@ var WindowList = new Lang.Class({
        this.parent(actor, box, flags);
    },

-    highlight(index, justOutline) {
+    highlight: function(index, justOutline) {
        this.parent(index, justOutline);

        this._label.set_text(index == -1 ? '' : this.icons[index].label.text);
    },

-    _removeWindow(window) {
+    _removeWindow: function(window) {
        let index = this.icons.findIndex(icon => {
            return icon.window == window;
        });
--- a/js/ui/animation.js
+++ b/js/ui/animation.js
@ -12,9 +12,9 @@ var ANIMATED_ICON_UPDATE_TIMEOUT = 16;
 var Animation = new Lang.Class({
    Name: 'Animation',

-    _init(file, width, height, speed) {
+    _init: function(file, width, height, speed) {
        this.actor = new St.Bin();
-        this.actor.connect('destroy', this._onDestroy.bind(this));
+        this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
        this._speed = speed;

        this._isLoaded = false;
@ -24,23 +24,23 @@ var Animation = new Lang.Class({

        let scaleFactor = St.ThemeContext.get_for_stage(global.stage).scale_factor;
        this._animations = St.TextureCache.get_default().load_sliced_image (file, width, height, scaleFactor,
-                                                                            this._animationsLoaded.bind(this));
+                                                                            Lang.bind(this, this._animationsLoaded));
        this.actor.set_child(this._animations);
    },

-    play() {
+    play: function() {
        if (this._isLoaded && this._timeoutId == 0) {
            if (this._frame == 0)
                this._showFrame(0);

-            this._timeoutId = GLib.timeout_add(GLib.PRIORITY_LOW, this._speed, this._update.bind(this));
+            this._timeoutId = GLib.timeout_add(GLib.PRIORITY_LOW, this._speed, Lang.bind(this, this._update));
            GLib.Source.set_name_by_id(this._timeoutId, '[gnome-shell] this._update');
        }

        this._isPlaying = true;
    },

-    stop() {
+    stop: function() {
        if (this._timeoutId > 0) {
            Mainloop.source_remove(this._timeoutId);
            this._timeoutId = 0;
@ -49,7 +49,7 @@ var Animation = new Lang.Class({
        this._isPlaying = false;
    },

-    _showFrame(frame) {
+    _showFrame: function(frame) {
        let oldFrameActor = this._animations.get_child_at_index(this._frame);
        if (oldFrameActor)
            oldFrameActor.hide();
@ -61,19 +61,19 @@ var Animation = new Lang.Class({
            newFrameActor.show();
    },

-    _update() {
+    _update: function() {
        this._showFrame(this._frame + 1);
        return GLib.SOURCE_CONTINUE;
    },

-    _animationsLoaded() {
+    _animationsLoaded: function() {
        this._isLoaded = this._animations.get_n_children() > 0;

        if (this._isPlaying)
            this.play();
    },

-    _onDestroy() {
+    _onDestroy: function() {
        this.stop();
    }
 });
@ -82,7 +82,7 @@ var AnimatedIcon = new Lang.Class({
    Name: 'AnimatedIcon',
    Extends: Animation,

-    _init(file, size) {
+    _init: function(file, size) {
        this.parent(file, size, size, ANIMATED_ICON_UPDATE_TIMEOUT);
    }
 });
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
--- a/js/ui/appFavorites.js
+++ b/js/ui/appFavorites.js
@ -13,7 +13,6 @@ const RENAMED_DESKTOP_IDS = {
    'dconf-editor.desktop': 'ca.desrt.dconf-editor.desktop',
    'empathy.desktop': 'org.gnome.Empathy.desktop',
    'epiphany.desktop': 'org.gnome.Epiphany.desktop',
-    'evolution.desktop': 'org.gnome.Evolution.desktop',
    'file-roller.desktop': 'org.gnome.FileRoller.desktop',
    'gcalctool.desktop': 'org.gnome.Calculator.desktop',
    'geary.desktop': 'org.gnome.Geary.desktop',
@ -35,7 +34,6 @@ const RENAMED_DESKTOP_IDS = {
    'gnome-screenshot.desktop': 'org.gnome.Screenshot.desktop',
    'gnome-software.desktop': 'org.gnome.Software.desktop',
    'gnome-terminal.desktop': 'org.gnome.Terminal.desktop',
-    'gnome-tweaks.desktop': 'org.gnome.tweaks.desktop',
    'gnome-weather.desktop': 'org.gnome.Weather.Application.desktop',
    'gnomine.desktop': 'gnome-mines.desktop',
    'gnotravex.desktop': 'gnome-tetravex.desktop',
@ -51,24 +49,24 @@ var AppFavorites = new Lang.Class({

    FAVORITE_APPS_KEY: 'favorite-apps',

-    _init() {
+    _init: function() {
        this._favorites = {};
-        global.settings.connect('changed::' + this.FAVORITE_APPS_KEY, this._onFavsChanged.bind(this));
+        global.settings.connect('changed::' + this.FAVORITE_APPS_KEY, Lang.bind(this, this._onFavsChanged));
        this.reload();
    },

-    _onFavsChanged() {
+    _onFavsChanged: function() {
        this.reload();
        this.emit('changed');
    },

-    reload() {
+    reload: function() {
        let ids = global.settings.get_strv(this.FAVORITE_APPS_KEY);
        let appSys = Shell.AppSystem.get_default();

        // Map old desktop file names to the current ones
        let updated = false;
-        ids = ids.map(id => {
+        ids = ids.map(function (id) {
            let newId = RENAMED_DESKTOP_IDS[id];
            if (newId !== undefined &&
                appSys.lookup_app(newId) != null) {
@ -81,8 +79,11 @@ var AppFavorites = new Lang.Class({
        if (updated)
            global.settings.set_strv(this.FAVORITE_APPS_KEY, ids);

-        let apps = ids.map(id => appSys.lookup_app(id))
-                      .filter(app => app != null);
+        let apps = ids.map(function (id) {
+                return appSys.lookup_app(id);
+            }).filter(function (app) {
+                return app != null;
+            });
        this._favorites = {};
        for (let i = 0; i < apps.length; i++) {
            let app = apps[i];
@ -90,29 +91,29 @@ var AppFavorites = new Lang.Class({
        }
    },

-    _getIds() {
+    _getIds: function() {
        let ret = [];
        for (let id in this._favorites)
            ret.push(id);
        return ret;
    },

-    getFavoriteMap() {
+    getFavoriteMap: function() {
        return this._favorites;
    },

-    getFavorites() {
+    getFavorites: function() {
        let ret = [];
        for (let id in this._favorites)
            ret.push(this._favorites[id]);
        return ret;
    },

-    isFavorite(appId) {
+    isFavorite: function(appId) {
        return appId in this._favorites;
    },

-    _addFavorite(appId, pos) {
+    _addFavorite: function(appId, pos) {
        if (appId in this._favorites)
            return false;

@ -131,7 +132,7 @@ var AppFavorites = new Lang.Class({
        return true;
    },

-    addFavoriteAtPos(appId, pos) {
+    addFavoriteAtPos: function(appId, pos) {
        if (!this._addFavorite(appId, pos))
            return;

@ -139,31 +140,31 @@ var AppFavorites = new Lang.Class({

        Main.overview.setMessage(_("%s has been added to your favorites.").format(app.get_name()),
                                 { forFeedback: true,
-                                   undoCallback: () => {
-                                       this._removeFavorite(appId);
-                                   }
+                                   undoCallback: Lang.bind(this, function () {
+                                                               this._removeFavorite(appId);
+                                                           })
                                 });
    },

-    addFavorite(appId) {
+    addFavorite: function(appId) {
        this.addFavoriteAtPos(appId, -1);
    },

-    moveFavoriteToPos(appId, pos) {
+    moveFavoriteToPos: function(appId, pos) {
        this._removeFavorite(appId);
        this._addFavorite(appId, pos);
    },

-    _removeFavorite(appId) {
+    _removeFavorite: function(appId) {
        if (!appId in this._favorites)
            return false;

-        let ids = this._getIds().filter(id => id != appId);
+        let ids = this._getIds().filter(function (id) { return id != appId; });
        global.settings.set_strv(this.FAVORITE_APPS_KEY, ids);
        return true;
    },

-    removeFavorite(appId) {
+    removeFavorite: function(appId) {
        let ids = this._getIds();
        let pos = ids.indexOf(appId);

@ -173,9 +174,9 @@ var AppFavorites = new Lang.Class({

        Main.overview.setMessage(_("%s has been removed from your favorites.").format(app.get_name()),
                                 { forFeedback: true,
-                                   undoCallback: () => {
-                                       this._addFavorite(appId, pos);
-                                   }
+                                   undoCallback: Lang.bind(this, function () {
+                                                               this._addFavorite(appId, pos);
+                                                           })
                                 });
    }
 });
--- a/js/ui/audioDeviceSelection.js
+++ b/js/ui/audioDeviceSelection.js
@ -32,7 +32,7 @@ var AudioDeviceSelectionDialog = new Lang.Class({
    Name: 'AudioDeviceSelectionDialog',
    Extends: ModalDialog.ModalDialog,

-    _init(devices) {
+    _init: function(devices) {
        this.parent({ styleClass: 'audio-device-selection-dialog' });

        this._deviceItems = {};
@ -50,11 +50,11 @@ var AudioDeviceSelectionDialog = new Lang.Class({
            throw new Error('Too few devices for a selection');
    },

-    destroy() {
+    destroy: function() {
        this.parent();
    },

-    _buildLayout(devices) {
+    _buildLayout: function(devices) {
        let title = new St.Label({ style_class: 'audio-selection-title',
                                   text: _("Select Audio Device"),
                                   x_align: Clutter.ActorAlign.CENTER });
@ -65,14 +65,14 @@ var AudioDeviceSelectionDialog = new Lang.Class({
        this._selectionBox = new St.BoxLayout({ style_class: 'audio-selection-box' });
        this.contentLayout.add(this._selectionBox, { expand: true });

-        this.addButton({ action: this._openSettings.bind(this),
+        this.addButton({ action: Lang.bind(this, this._openSettings),
                         label: _("Sound Settings") });
-        this.addButton({ action: this.close.bind(this),
+        this.addButton({ action: Lang.bind(this, this.close),
                         label: _("Cancel"),
                         key: Clutter.Escape });
    },

-    _getDeviceLabel(device) {
+    _getDeviceLabel: function(device) {
        switch(device) {
            case AudioDevice.HEADPHONES:
                return _("Headphones");
@ -85,7 +85,7 @@ var AudioDeviceSelectionDialog = new Lang.Class({
        }
    },

-    _getDeviceIcon(device) {
+    _getDeviceIcon: function(device) {
        switch(device) {
            case AudioDevice.HEADPHONES:
                return 'audio-headphones-symbolic';
@ -98,14 +98,16 @@ var AudioDeviceSelectionDialog = new Lang.Class({
        }
    },

-    _addDevice(device) {
+    _addDevice: function(device) {
        let box = new St.BoxLayout({ style_class: 'audio-selection-device-box',
                                     vertical: true });
-        box.connect('notify::height', () => {
-            Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
-                box.width = box.height;
+        box.connect('notify::height',
+            function() {
+                Meta.later_add(Meta.LaterType.BEFORE_REDRAW,
+                    function() {
+                        box.width = box.height;
+                    });
            });
-        });

        let icon = new St.Icon({ style_class: 'audio-selection-device-icon',
                                 icon_name: this._getDeviceIcon(device) });
@ -121,14 +123,15 @@ var AudioDeviceSelectionDialog = new Lang.Class({
                                     child: box });
        this._selectionBox.add(button);

-        button.connect('clicked', () => {
-            this.emit('device-selected', device);
-            this.close();
-            Main.overview.hide();
-        });
+        button.connect('clicked', Lang.bind(this,
+            function() {
+                this.emit('device-selected', device);
+                this.close();
+                Main.overview.hide();
+            }));
    },

-    _openSettings() {
+    _openSettings: function() {
        let desktopFile = 'gnome-sound-panel.desktop'
        let app = Shell.AppSystem.get_default().lookup_app(desktopFile);

@ -146,7 +149,7 @@ var AudioDeviceSelectionDialog = new Lang.Class({
 var AudioDeviceSelectionDBus = new Lang.Class({
    Name: 'AudioDeviceSelectionDBus',

-    _init() {
+    _init: function() {
        this._audioSelectionDialog = null;

        this._dbusImpl = Gio.DBusExportedObject.wrapJSObject(AudioDeviceSelectionIface, this);
@ -155,16 +158,17 @@ var AudioDeviceSelectionDBus = new Lang.Class({
        Gio.DBus.session.own_name('org.gnome.Shell.AudioDeviceSelection', Gio.BusNameOwnerFlags.REPLACE, null, null);
    },

-    _onDialogClosed() {
+    _onDialogClosed: function() {
        this._audioSelectionDialog = null;
    },

-    _onDeviceSelected(dialog, device) {
+    _onDeviceSelected: function(dialog, device) {
        let connection = this._dbusImpl.get_connection();
        let info = this._dbusImpl.get_info();
        let deviceName = Object.keys(AudioDevice).filter(
-            dev => AudioDevice[dev] == device
-        )[0].toLowerCase();
+            function(dev) {
+                return AudioDevice[dev] == device;
+            })[0].toLowerCase();
        connection.emit_signal(this._audioSelectionDialog._sender,
                               this._dbusImpl.get_object_path(),
                               info ? info.name : null,
@ -172,7 +176,7 @@ var AudioDeviceSelectionDBus = new Lang.Class({
                               GLib.Variant.new('(s)', [deviceName]));
    },

-    OpenAsync(params, invocation) {
+    OpenAsync: function(params, invocation) {
        if (this._audioSelectionDialog) {
            invocation.return_value(null);
            return;
@ -180,7 +184,9 @@ var AudioDeviceSelectionDBus = new Lang.Class({

        let [deviceNames] = params;
        let devices = 0;
-        deviceNames.forEach(n => { devices |= AudioDevice[n.toUpperCase()]; });
+        deviceNames.forEach(function(n) {
+            devices |= AudioDevice[n.toUpperCase()];
+        });

        let dialog;
        try {
@ -191,16 +197,16 @@ var AudioDeviceSelectionDBus = new Lang.Class({
        }
        dialog._sender = invocation.get_sender();

-        dialog.connect('closed', this._onDialogClosed.bind(this));
+        dialog.connect('closed', Lang.bind(this, this._onDialogClosed));
        dialog.connect('device-selected',
-                       this._onDeviceSelected.bind(this));
+                       Lang.bind(this, this._onDeviceSelected));
        dialog.open();

        this._audioSelectionDialog = dialog;
        invocation.return_value(null);
    },

-    CloseAsync(params, invocation) {
+    CloseAsync: function(params, invocation) {
        if (this._audioSelectionDialog &&
            this._audioSelectionDialog._sender == invocation.get_sender())
            this._audioSelectionDialog.close();
--- a/js/ui/background.js
+++ b/js/ui/background.js
@ -141,31 +141,31 @@ function _fileEqual0(file1, file2) {
 var BackgroundCache = new Lang.Class({
    Name: 'BackgroundCache',

-    _init() {
+    _init: function() {
        this._fileMonitors = {};
        this._backgroundSources = {};
        this._animations = {};
    },

-    monitorFile(file) {
+    monitorFile: function(file) {
        let key = file.hash();
        if (this._fileMonitors[key])
            return;

        let monitor = file.monitor(Gio.FileMonitorFlags.NONE, null);
        monitor.connect('changed',
-                        (obj, file, otherFile, eventType) => {
+                        Lang.bind(this, function(obj, file, otherFile, eventType) {
                            // Ignore CHANGED and CREATED events, since in both cases
                            // we'll get a CHANGES_DONE_HINT event when done.
                            if (eventType != Gio.FileMonitorEvent.CHANGED &&
                                eventType != Gio.FileMonitorEvent.CREATED)
                                this.emit('file-changed', file);
-                        });
+                        }));

        this._fileMonitors[key] = monitor;
    },

-    getAnimation(params) {
+    getAnimation: function(params) {
        params = Params.parse(params, { file: null,
                                        settingsSchema: null,
                                        onLoaded: null });
@ -173,10 +173,10 @@ var BackgroundCache = new Lang.Class({
        let animation = this._animations[params.settingsSchema];
        if (animation && _fileEqual0(animation.file, params.file)) {
            if (params.onLoaded) {
-                let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
+                let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, Lang.bind(this, function() {
                    params.onLoaded(this._animations[params.settingsSchema]);
                    return GLib.SOURCE_REMOVE;
-                });
+                }));
                GLib.Source.set_name_by_id(id, '[gnome-shell] params.onLoaded');
            }
            return;
@ -184,20 +184,20 @@ var BackgroundCache = new Lang.Class({

        animation = new Animation({ file: params.file });

-        animation.load(() => {
-            this._animations[params.settingsSchema] = animation;
+        animation.load(Lang.bind(this, function() {
+                           this._animations[params.settingsSchema] = animation;

-            if (params.onLoaded) {
-                let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
-                    params.onLoaded(this._animations[params.settingsSchema]);
-                    return GLib.SOURCE_REMOVE;
-                });
-                GLib.Source.set_name_by_id(id, '[gnome-shell] params.onLoaded');
-            }
-        });
+                           if (params.onLoaded) {
+                               let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, Lang.bind(this, function() {
+                                   params.onLoaded(this._animations[params.settingsSchema]);
+                                   return GLib.SOURCE_REMOVE;
+                               }));
+                               GLib.Source.set_name_by_id(id, '[gnome-shell] params.onLoaded');
+                           }
+                       }));
    },

-    getBackgroundSource(layoutManager, settingsSchema) {
+    getBackgroundSource: function(layoutManager, settingsSchema) {
        // The layoutManager is always the same one; we pass in it since
        // Main.layoutManager may not be set yet

@ -211,7 +211,7 @@ var BackgroundCache = new Lang.Class({
        return this._backgroundSources[settingsSchema];
    },

-    releaseBackgroundSource(settingsSchema) {
+    releaseBackgroundSource: function(settingsSchema) {
        if (settingsSchema in this._backgroundSources) {
            let source = this._backgroundSources[settingsSchema];
            source._useCount--;
@ -233,14 +233,14 @@ function getBackgroundCache() {
 var Background = new Lang.Class({
    Name: 'Background',

-    _init(params) {
+    _init: function(params) {
        params = Params.parse(params, { monitorIndex: 0,
                                        layoutManager: Main.layoutManager,
                                        settings: null,
                                        file: null,
                                        style: null });

-        this.background = new Meta.Background({ meta_display: global.display });
+        this.background = new Meta.Background({ meta_screen: global.screen });
        this.background._delegate = this;

        this._settings = params.settings;
@ -254,10 +254,10 @@ var Background = new Lang.Class({

        this._clock = new GnomeDesktop.WallClock();
        this._timezoneChangedId = this._clock.connect('notify::timezone',
-            () => {
+            Lang.bind(this, function() {
                if (this._animation)
                    this._loadAnimation(this._animation.file);
-            });
+            }));

        let loginManager = LoginManager.getLoginManager();
        this._prepareForSleepId = loginManager.connect('prepare-for-sleep',
@ -267,14 +267,14 @@ var Background = new Lang.Class({
                this._refreshAnimation();
            });

-        this._settingsChangedSignalId = this._settings.connect('changed', () => {
-            this.emit('changed');
-        });
+        this._settingsChangedSignalId = this._settings.connect('changed', Lang.bind(this, function() {
+                                            this.emit('changed');
+                                        }));

        this._load();
    },

-    destroy() {
+    destroy: function() {
        this._cancellable.cancel();
        this._removeAnimationTimeout();

@ -300,12 +300,12 @@ var Background = new Lang.Class({
        this._settingsChangedSignalId = 0;
    },

-    updateResolution() {
+    updateResolution: function() {
        if (this._animation)
            this._refreshAnimation();
    },

-    _refreshAnimation() {
+    _refreshAnimation: function() {
        if (!this._animation)
            return;

@ -313,20 +313,20 @@ var Background = new Lang.Class({
        this._updateAnimation();
    },

-    _setLoaded() {
+    _setLoaded: function() {
        if (this.isLoaded)
            return;

        this.isLoaded = true;

-        let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
+        let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, Lang.bind(this, function() {
            this.emit('loaded');
            return GLib.SOURCE_REMOVE;
-        });
+        }));
        GLib.Source.set_name_by_id(id, '[gnome-shell] this.emit');
    },

-    _loadPattern() {
+    _loadPattern: function() {
        let colorString, res, color, secondColor;

        colorString = this._settings.get_string(PRIMARY_COLOR_KEY);
@ -342,37 +342,37 @@ var Background = new Lang.Class({
            this.background.set_gradient(shadingType, color, secondColor);
    },

-    _watchFile(file) {
+    _watchFile: function(file) {
        let key = file.hash();
        if (this._fileWatches[key])
            return;

        this._cache.monitorFile(file);
        let signalId = this._cache.connect('file-changed',
-                                           (cache, changedFile) => {
+                                           Lang.bind(this, function(cache, changedFile) {
                                               if (changedFile.equal(file)) {
                                                   let imageCache = Meta.BackgroundImageCache.get_default();
                                                   imageCache.purge(changedFile);
                                                   this.emit('changed');
                                               }
-                                           });
+                                           }));
        this._fileWatches[key] = signalId;
    },

-    _removeAnimationTimeout() {
+    _removeAnimationTimeout: function() {
        if (this._updateAnimationTimeoutId) {
            GLib.source_remove(this._updateAnimationTimeoutId);
            this._updateAnimationTimeoutId = 0;
        }
    },

-    _updateAnimation() {
+    _updateAnimation: function() {
        this._updateAnimationTimeoutId = 0;

        this._animation.update(this._layoutManager.monitors[this._monitorIndex]);
        let files = this._animation.keyFrameFiles;

-        let finish = () => {
+        let finish = Lang.bind(this, function() {
            this._setLoaded();
            if (files.length > 1) {
                this.background.set_blend(files[0], files[1],
@ -384,7 +384,7 @@ var Background = new Lang.Class({
                this.background.set_file(null, this._style);
            }
            this._queueUpdateAnimation();
-        };
+        });

        let cache = Meta.BackgroundImageCache.get_default();
        let numPendingImages = files.length;
@ -396,17 +396,18 @@ var Background = new Lang.Class({
                if (numPendingImages == 0)
                    finish();
            } else {
-                let id = image.connect('loaded', () => {
-                    image.disconnect(id);
-                    numPendingImages--;
-                    if (numPendingImages == 0)
-                        finish();
-                });
+                let id = image.connect('loaded',
+                                       Lang.bind(this, function() {
+                                           image.disconnect(id);
+                                           numPendingImages--;
+                                           if (numPendingImages == 0)
+                                               finish();
+                                       }));
            }
        }
    },

-    _queueUpdateAnimation() {
+    _queueUpdateAnimation: function() {
        if (this._updateAnimationTimeoutId != 0)
            return;

@ -427,18 +428,18 @@ var Background = new Lang.Class({

        this._updateAnimationTimeoutId = GLib.timeout_add(GLib.PRIORITY_DEFAULT,
                                                      interval,
-                                                      () => {
-                                                          this._updateAnimationTimeoutId = 0;
-                                                          this._updateAnimation();
-                                                          return GLib.SOURCE_REMOVE;
-                                                      });
+                                                      Lang.bind(this, function() {
+                                                                    this._updateAnimationTimeoutId = 0;
+                                                                    this._updateAnimation();
+                                                                    return GLib.SOURCE_REMOVE;
+                                                                }));
        GLib.Source.set_name_by_id(this._updateAnimationTimeoutId, '[gnome-shell] this._updateAnimation');
    },

-    _loadAnimation(file) {
+    _loadAnimation: function(file) {
        this._cache.getAnimation({ file: file,
                                   settingsSchema: this._settings.schema_id,
-                                   onLoaded: animation => {
+                                   onLoaded: Lang.bind(this, function(animation) {
                                       this._animation = animation;

                                       if (!this._animation || this._cancellable.is_cancelled()) {
@ -448,11 +449,11 @@ var Background = new Lang.Class({

                                       this._updateAnimation();
                                       this._watchFile(file);
-                                   }
+                                   })
                                 });
    },

-    _loadImage(file) {
+    _loadImage: function(file) {
        this.background.set_file(file, this._style);
        this._watchFile(file);

@ -461,21 +462,22 @@ var Background = new Lang.Class({
        if (image.is_loaded())
            this._setLoaded();
        else {
-            let id = image.connect('loaded', () => {
-                this._setLoaded();
-                image.disconnect(id);
-            });
+            let id = image.connect('loaded',
+                                   Lang.bind(this, function() {
+                                       this._setLoaded();
+                                       image.disconnect(id);
+                                   }));
        }
    },

-    _loadFile(file) {
+    _loadFile: function(file) {
        if (file.get_basename().endsWith('.xml'))
            this._loadAnimation(file);
        else
            this._loadImage(file);
    },

-    _load() {
+    _load: function () {
        this._cache = getBackgroundCache();

        this._loadPattern();
@ -495,16 +497,16 @@ let _systemBackground;
 var SystemBackground = new Lang.Class({
    Name: 'SystemBackground',

-    _init() {
+    _init: function() {
        let file = Gio.File.new_for_uri('resource:///org/gnome/shell/theme/noise-texture.png');

        if (_systemBackground == null) {
-            _systemBackground = new Meta.Background({ meta_display: global.display });
+            _systemBackground = new Meta.Background({ meta_screen: global.screen });
            _systemBackground.set_color(DEFAULT_BACKGROUND_COLOR);
            _systemBackground.set_file(file, GDesktopEnums.BackgroundStyle.WALLPAPER);
        }

-        this.actor = new Meta.BackgroundActor({ meta_display: global.display,
+        this.actor = new Meta.BackgroundActor({ meta_screen: global.screen,
                                                monitor: 0,
                                                background: _systemBackground });

@ -512,17 +514,18 @@ var SystemBackground = new Lang.Class({
        let image = cache.load(file);
        if (image.is_loaded()) {
            image = null;
-            let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
+            let id = GLib.idle_add(GLib.PRIORITY_DEFAULT, Lang.bind(this, function() {
                this.emit('loaded');
                return GLib.SOURCE_REMOVE;
-            });
+            }));
            GLib.Source.set_name_by_id(id, '[gnome-shell] SystemBackground.loaded');
        } else {
-            let id = image.connect('loaded', () => {
-                this.emit('loaded');
-                image.disconnect(id);
-                image = null;
-            });
+            let id = image.connect('loaded',
+                                   Lang.bind(this, function() {
+                                       this.emit('loaded');
+                                       image.disconnect(id);
+                                       image = null;
+                                   }));
        }
    },
 });
@ -531,20 +534,18 @@ Signals.addSignalMethods(SystemBackground.prototype);
 var BackgroundSource = new Lang.Class({
    Name: 'BackgroundSource',

-    _init(layoutManager, settingsSchema) {
+    _init: function(layoutManager, settingsSchema) {
        // Allow override the background image setting for performance testing
        this._layoutManager = layoutManager;
        this._overrideImage = GLib.getenv('SHELL_BACKGROUND_IMAGE');
        this._settings = new Gio.Settings({ schema_id: settingsSchema });
        this._backgrounds = [];

-        let monitorManager = Meta.MonitorManager.get();
-        this._monitorsChangedId =
-            monitorManager.connect('monitors-changed',
-                                   this._onMonitorsChanged.bind(this));
+        this._monitorsChangedId = global.screen.connect('monitors-changed',
+                                                        Lang.bind(this, this._onMonitorsChanged));
    },

-    _onMonitorsChanged() {
+    _onMonitorsChanged: function() {
        for (let monitorIndex in this._backgrounds) {
            let background = this._backgrounds[monitorIndex];

@ -558,7 +559,7 @@ var BackgroundSource = new Lang.Class({
        }
    },

-    getBackground(monitorIndex) {
+    getBackground: function(monitorIndex) {
        let file = null;
        let style;

@ -593,11 +594,11 @@ var BackgroundSource = new Lang.Class({
                style: style
            });

-            background._changedId = background.connect('changed', () => {
+            background._changedId = background.connect('changed', Lang.bind(this, function() {
                background.disconnect(background._changedId);
                background.destroy();
                delete this._backgrounds[monitorIndex];
-            });
+            }));

            this._backgrounds[monitorIndex] = background;
        }
@ -605,9 +606,8 @@ var BackgroundSource = new Lang.Class({
        return this._backgrounds[monitorIndex];
    },

-    destroy() {
-        let monitorManager = Meta.MonitorManager.get();
-        monitorManager.disconnect(this._monitorsChangedId);
+    destroy: function() {
+        global.screen.disconnect(this._monitorsChangedId);

        for (let monitorIndex in this._backgrounds) {
            let background = this._backgrounds[monitorIndex];
@ -622,7 +622,7 @@ var BackgroundSource = new Lang.Class({
 var Animation = new Lang.Class({
    Name: 'Animation',

-    _init(params) {
+    _init: function(params) {
        params = Params.parse(params, { file: null });

        this.file = params.file;
@ -632,17 +632,19 @@ var Animation = new Lang.Class({
        this.loaded = false;
    },

-    load(callback) {
+    load: function(callback) {
        this._show = new GnomeDesktop.BGSlideShow({ filename: this.file.get_path() });

-        this._show.load_async(null, (object, result) => {
-            this.loaded = true;
-            if (callback)
-                callback();
-        });
+        this._show.load_async(null,
+                              Lang.bind(this,
+                                        function(object, result) {
+                                            this.loaded = true;
+                                            if (callback)
+                                                callback();
+                                        }));
    },

-    update(monitor) {
+    update: function(monitor) {
        this.keyFrameFiles = [];

        if (!this._show)
@ -668,7 +670,7 @@ Signals.addSignalMethods(Animation.prototype);
 var BackgroundManager = new Lang.Class({
    Name: 'BackgroundManager',

-    _init(params) {
+    _init: function(params) {
        params = Params.parse(params, { container: null,
                                        layoutManager: Main.layoutManager,
                                        monitorIndex: null,
@ -690,7 +692,7 @@ var BackgroundManager = new Lang.Class({
        this._newBackgroundActor = null;
    },

-    destroy() {
+    destroy: function() {
        let cache = getBackgroundCache();
        cache.releaseBackgroundSource(this._settingsSchema);
        this._backgroundSource = null;
@ -706,7 +708,7 @@ var BackgroundManager = new Lang.Class({
        }
    },

-    _swapBackgroundActor() {
+    _swapBackgroundActor: function() {
        let oldBackgroundActor = this.backgroundActor;
        this.backgroundActor = this._newBackgroundActor;
        this._newBackgroundActor = null;
@ -716,14 +718,14 @@ var BackgroundManager = new Lang.Class({
                         { opacity: 0,
                           time: FADE_ANIMATION_TIME,
                           transition: 'easeOutQuad',
-                           onComplete() {
+                           onComplete: function() {
                               oldBackgroundActor.background.run_dispose();
                               oldBackgroundActor.destroy();
                           }
                         });
    },

-    _updateBackgroundActor() {
+    _updateBackgroundActor: function() {
        if (this._newBackgroundActor) {
            /* Skip displaying existing background queued for load */
            this._newBackgroundActor.destroy();
@ -743,18 +745,19 @@ var BackgroundManager = new Lang.Class({
            this._swapBackgroundActor();
        } else {
            newBackgroundActor.loadedSignalId = background.connect('loaded',
-                () => {
+                Lang.bind(this, function() {
                    background.disconnect(newBackgroundActor.loadedSignalId);
                    newBackgroundActor.loadedSignalId = 0;

                    this._swapBackgroundActor();
-                });
+
+                }));
        }
    },

-    _createBackgroundActor() {
+    _createBackgroundActor: function() {
        let background = this._backgroundSource.getBackground(this._monitorIndex);
-        let backgroundActor = new Meta.BackgroundActor({ meta_display: global.display,
+        let backgroundActor = new Meta.BackgroundActor({ meta_screen: global.screen,
                                                         monitor: this._monitorIndex,
                                                         background: background.background,
                                                         vignette: this._vignette,
@ -772,19 +775,19 @@ var BackgroundManager = new Lang.Class({
            backgroundActor.lower_bottom();
        }

-        let changeSignalId = background.connect('changed', () => {
+        let changeSignalId = background.connect('changed', Lang.bind(this, function() {
            background.disconnect(changeSignalId);
            changeSignalId = null;
            this._updateBackgroundActor();
-        });
+        }));

-        backgroundActor.connect('destroy', () => {
+        backgroundActor.connect('destroy', Lang.bind(this, function() {
            if (changeSignalId)
                background.disconnect(changeSignalId);

            if (backgroundActor.loadedSignalId)
                background.disconnect(backgroundActor.loadedSignalId);
-        });
+        }));

        return backgroundActor;
    },
--- a/js/ui/backgroundMenu.js
+++ b/js/ui/backgroundMenu.js
@ -13,7 +13,7 @@ var BackgroundMenu = new Lang.Class({
    Name: 'BackgroundMenu',
    Extends: PopupMenu.PopupMenu,

-    _init(layoutManager) {
+    _init: function(layoutManager) {
        this.parent(layoutManager.dummyCursor, 0, St.Side.TOP);

        this.addSettingsAction(_("Change Background…"), 'gnome-background-panel.desktop');
@ -40,7 +40,7 @@ function addBackgroundMenu(actor, layoutManager) {
    }

    let clickAction = new Clutter.ClickAction();
-    clickAction.connect('long-press', (action, actor, state) => {
+    clickAction.connect('long-press', function(action, actor, state) {
        if (state == Clutter.LongPressState.QUERY)
            return ((action.get_button() == 0 ||
                     action.get_button() == 1) &&
@ -52,7 +52,7 @@ function addBackgroundMenu(actor, layoutManager) {
        }
        return true;
    });
-    clickAction.connect('clicked', action => {
+    clickAction.connect('clicked', function(action) {
        if (action.get_button() == 3) {
            let [x, y] = action.get_coords();
            openMenu(x, y);
@ -60,11 +60,11 @@ function addBackgroundMenu(actor, layoutManager) {
    });
    actor.add_action(clickAction);

-    let grabOpBeginId = global.display.connect('grab-op-begin', () => {
+    let grabOpBeginId = global.display.connect('grab-op-begin', function () {
        clickAction.release();
    });

-    actor.connect('destroy', () => {
+    actor.connect('destroy', function() {
        actor._backgroundMenu.destroy();
        actor._backgroundMenu = null;
        actor._backgroundManager = null;
--- a/js/ui/barLevel.js
+++ b/js/ui/barLevel.js
@ -1,210 +0,0 @@
-/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
-
-const Atk = imports.gi.Atk;
-const Cairo = imports.cairo;
-const Clutter = imports.gi.Clutter;
-const Lang = imports.lang;
-const St = imports.gi.St;
-const Signals = imports.signals;
-
-var BarLevel = new Lang.Class({
-    Name: "BarLevel",
-
-    _init(value, params) {
-        if (isNaN(value))
-            // Avoid spreading NaNs around
-            throw TypeError('The bar level value must be a number');
-        this._maxValue = 1;
-        this._value = Math.max(Math.min(value, this._maxValue), 0);
-        this._overdriveStart = 1;
-        this._barLevelWidth = 0;
-
-        if (params == undefined)
-            params = {}
-
-        this.actor = new St.DrawingArea({ styleClass: params['styleClass'] || 'barlevel',
-                                          can_focus: params['canFocus'] || false,
-                                          reactive: params['reactive'] || false,
-                                          accessible_role: params['accessibleRole'] || Atk.Role.LEVEL_BAR });
-        this.actor.connect('repaint', this._barLevelRepaint.bind(this));
-        this.actor.connect('allocation-changed', (actor, box) => {
-            this._barLevelWidth = box.get_width();
-        });
-
-        this._customAccessible = St.GenericAccessible.new_for_actor(this.actor);
-        this.actor.set_accessible(this._customAccessible);
-
-        this._customAccessible.connect('get-current-value', this._getCurrentValue.bind(this));
-        this._customAccessible.connect('get-minimum-value', this._getMinimumValue.bind(this));
-        this._customAccessible.connect('get-maximum-value', this._getMaximumValue.bind(this));
-        this._customAccessible.connect('set-current-value', this._setCurrentValue.bind(this));
-
-        this.connect('value-changed', this._valueChanged.bind(this));
-    },
-
-    setValue(value) {
-        if (isNaN(value))
-            throw TypeError('The bar level value must be a number');
-
-        this._value = Math.max(Math.min(value, this._maxValue), 0);
-        this.actor.queue_repaint();
-    },
-
-    setMaximumValue(value) {
-        if (isNaN(value))
-            throw TypeError('The bar level max value must be a number');
-
-        this._maxValue = Math.max(value, 1);
-        this._overdriveStart = Math.min(this._overdriveStart, this._maxValue);
-        this.actor.queue_repaint();
-    },
-
-    setOverdriveStart(value) {
-        if (isNaN(value))
-            throw TypeError('The overdrive limit value must be a number');
-        if (value > this._maxValue)
-            throw new Error(`Tried to set overdrive value to ${value}, ` +
-                `which is a number greater than the maximum allowed value ${this._maxValue}`);
-
-        this._overdriveStart = value;
-        this._value = Math.max(Math.min(value, this._maxValue), 0);
-        this.actor.queue_repaint();
-    },
-
-    _barLevelRepaint(area) {
-        let cr = area.get_context();
-        let themeNode = area.get_theme_node();
-        let [width, height] = area.get_surface_size();
-
-        let barLevelHeight = themeNode.get_length('-barlevel-height');
-        let barLevelBorderRadius = Math.min(width, barLevelHeight) / 2;
-        let fgColor = themeNode.get_foreground_color();
-
-        let barLevelColor = themeNode.get_color('-barlevel-background-color');
-        let barLevelActiveColor = themeNode.get_color('-barlevel-active-background-color');
-        let barLevelOverdriveColor = themeNode.get_color('-barlevel-overdrive-color');
-
-        let barLevelBorderWidth = Math.min(themeNode.get_length('-barlevel-border-width'), 1);
-        let [hasBorderColor, barLevelBorderColor] =
-            themeNode.lookup_color('-barlevel-border-color', false);
-        if (!hasBorderColor)
-            barLevelBorderColor = barLevelColor;
-        let [hasActiveBorderColor, barLevelActiveBorderColor] =
-            themeNode.lookup_color('-barlevel-active-border-color', false);
-        if (!hasActiveBorderColor)
-            barLevelActiveBorderColor = barLevelActiveColor;
-        let [hasOverdriveBorderColor, barLevelOverdriveBorderColor] =
-            themeNode.lookup_color('-barlevel-overdrive-border-color', false);
-        if (!hasOverdriveBorderColor)
-            barLevelOverdriveBorderColor = barLevelOverdriveColor;
-
-        const TAU = Math.PI * 2;
-
-        let endX = 0;
-        if (this._maxValue > 0)
-            endX = barLevelBorderRadius + (width - 2 * barLevelBorderRadius) * this._value / this._maxValue;
-
-        let overdriveSeparatorX = barLevelBorderRadius + (width - 2 * barLevelBorderRadius) * this._overdriveStart / this._maxValue;
-        let overdriveActive = this._overdriveStart !== this._maxValue;
-        let overdriveSeparatorWidth = 0;
-        if (overdriveActive)
-            overdriveSeparatorWidth = themeNode.get_length('-barlevel-overdrive-separator-width');
-
-        /* background bar */
-        cr.arc(width - barLevelBorderRadius - barLevelBorderWidth, height / 2, barLevelBorderRadius, TAU * 3 / 4, TAU * 1 / 4);
-        cr.lineTo(endX, (height + barLevelHeight) / 2);
-        cr.lineTo(endX, (height - barLevelHeight) / 2);
-        cr.lineTo(width - barLevelBorderRadius - barLevelBorderWidth, (height - barLevelHeight) / 2);
-        Clutter.cairo_set_source_color(cr, barLevelColor);
-        cr.fillPreserve();
-        Clutter.cairo_set_source_color(cr, barLevelBorderColor);
-        cr.setLineWidth(barLevelBorderWidth);
-        cr.stroke();
-
-        /* normal progress bar */
-        let x = Math.min(endX, overdriveSeparatorX - overdriveSeparatorWidth / 2);
-        cr.arc(barLevelBorderRadius + barLevelBorderWidth, height / 2, barLevelBorderRadius, TAU * 1 / 4, TAU * 3 / 4);
-        cr.lineTo(x, (height - barLevelHeight) / 2);
-        cr.lineTo(x, (height + barLevelHeight) / 2);
-        cr.lineTo(barLevelBorderRadius + barLevelBorderWidth, (height + barLevelHeight) / 2);
-        Clutter.cairo_set_source_color(cr, barLevelActiveColor);
-        cr.fillPreserve();
-        Clutter.cairo_set_source_color(cr, barLevelActiveBorderColor);
-        cr.setLineWidth(barLevelBorderWidth);
-        cr.stroke();
-
-        /* overdrive progress barLevel */
-        x = Math.min(endX, overdriveSeparatorX) + overdriveSeparatorWidth / 2;
-        if (this._value > this._overdriveStart) {
-            cr.moveTo(x, (height - barLevelHeight) / 2);
-            cr.lineTo(endX, (height - barLevelHeight) / 2);
-            cr.lineTo(endX, (height + barLevelHeight) / 2);
-            cr.lineTo(x, (height + barLevelHeight) / 2);
-            cr.lineTo(x, (height - barLevelHeight) / 2);
-            Clutter.cairo_set_source_color(cr, barLevelOverdriveColor);
-            cr.fillPreserve();
-            Clutter.cairo_set_source_color(cr, barLevelOverdriveBorderColor);
-            cr.setLineWidth(barLevelBorderWidth);
-            cr.stroke();
-        }
-
-        /* end progress bar arc */
-        if (this._value <= this._overdriveStart)
-            Clutter.cairo_set_source_color(cr, barLevelActiveColor);
-        else
-            Clutter.cairo_set_source_color(cr, barLevelOverdriveColor);
-        cr.arc(endX, height / 2, barLevelBorderRadius, TAU * 3 / 4, TAU * 1 / 4);
-        cr.lineTo(Math.floor(endX), (height + barLevelHeight) / 2);
-        cr.lineTo(Math.floor(endX), (height - barLevelHeight) / 2);
-        cr.lineTo(endX, (height - barLevelHeight) / 2);
-        cr.fillPreserve();
-        cr.setLineWidth(barLevelBorderWidth);
-        cr.stroke();
-
-        /* draw overdrive separator */
-        if (overdriveActive) {
-            cr.moveTo(overdriveSeparatorX - overdriveSeparatorWidth / 2, (height - barLevelHeight) / 2);
-            cr.lineTo(overdriveSeparatorX + overdriveSeparatorWidth / 2, (height - barLevelHeight) / 2);
-            cr.lineTo(overdriveSeparatorX + overdriveSeparatorWidth / 2, (height + barLevelHeight) / 2);
-            cr.lineTo(overdriveSeparatorX - overdriveSeparatorWidth / 2, (height + barLevelHeight) / 2);
-            cr.lineTo(overdriveSeparatorX - overdriveSeparatorWidth / 2, (height - barLevelHeight) / 2);
-            if (this._value <= this._overdriveStart)
-                Clutter.cairo_set_source_color(cr, fgColor);
-            else
-                Clutter.cairo_set_source_color(cr, barLevelColor);
-            cr.fill();
-        }
-
-        cr.$dispose();
-    },
-
-    _getCurrentValue(actor) {
-        return this._value;
-    },
-
-    _getOverdriveStart(actor) {
-        return this._overdriveStart;
-    },
-
-    _getMinimumValue(actor) {
-        return 0;
-    },
-
-    _getMaximumValue(actor) {
-        return this._maxValue;
-    },
-
-    _setCurrentValue(actor, value) {
-        this._value = value;
-    },
-
-    _valueChanged(barLevel, value, property) {
-        this._customAccessible.notify("accessible-value");
-    },
-
-    get value() {
-        return this._value;
-    }
-});
-
-Signals.addSignalMethods(BarLevel.prototype);
--- a/js/ui/boxpointer.js
+++ b/js/ui/boxpointer.js
@ -35,7 +35,7 @@ var POPUP_ANIMATION_TIME = 0.15;
 var BoxPointer = new Lang.Class({
    Name: 'BoxPointer',

-    _init(arrowSide, binProperties) {
+    _init: function(arrowSide, binProperties) {
        this._arrowSide = arrowSide;
        this._userArrowSide = arrowSide;
        this._arrowOrigin = 0;
@ -44,13 +44,13 @@ var BoxPointer = new Lang.Class({
                                  y_fill: true });
        this._container = new Shell.GenericContainer();
        this.actor.set_child(this._container);
-        this._container.connect('get-preferred-width', this._getPreferredWidth.bind(this));
-        this._container.connect('get-preferred-height', this._getPreferredHeight.bind(this));
-        this._container.connect('allocate', this._allocate.bind(this));
+        this._container.connect('get-preferred-width', Lang.bind(this, this._getPreferredWidth));
+        this._container.connect('get-preferred-height', Lang.bind(this, this._getPreferredHeight));
+        this._container.connect('allocate', Lang.bind(this, this._allocate));
        this.bin = new St.Bin(binProperties);
        this._container.add_actor(this.bin);
        this._border = new St.DrawingArea();
-        this._border.connect('repaint', this._drawBorder.bind(this));
+        this._border.connect('repaint', Lang.bind(this, this._drawBorder));
        this._container.add_actor(this._border);
        this.bin.raise(this._border);
        this._xOffset = 0;
@ -66,20 +66,20 @@ var BoxPointer = new Lang.Class({
        return this._arrowSide;
    },

-    _muteInput() {
+    _muteInput: function() {
        if (this._capturedEventId == 0)
            this._capturedEventId = this.actor.connect('captured-event',
-                                                       () => Clutter.EVENT_STOP);
+                                                       function() { return Clutter.EVENT_STOP; });
    },

-    _unmuteInput() {
+    _unmuteInput: function() {
        if (this._capturedEventId != 0) {
            this.actor.disconnect(this._capturedEventId);
            this._capturedEventId = 0;
        }
    },

-    show(animate, onComplete) {
+    show: function(animate, onComplete) {
        let themeNode = this.actor.get_theme_node();
        let rise = themeNode.get_length('-arrow-rise');
        let animationTime = (animate & PopupAnimation.FULL) ? POPUP_ANIMATION_TIME : 0;
@ -112,15 +112,15 @@ var BoxPointer = new Lang.Class({
                                 xOffset: 0,
                                 yOffset: 0,
                                 transition: 'linear',
-                                 onComplete: () => {
+                                 onComplete: Lang.bind(this, function() {
                                     this._unmuteInput();
                                     if (onComplete)
                                         onComplete();
-                                 },
+                                 }),
                                 time: animationTime });
    },

-    hide(animate, onComplete) {
+    hide: function(animate, onComplete) {
        if (!this.actor.visible)
            return;

@ -156,18 +156,18 @@ var BoxPointer = new Lang.Class({
                                 yOffset: yOffset,
                                 transition: 'linear',
                                 time: animationTime,
-                                 onComplete: () => {
+                                 onComplete: Lang.bind(this, function () {
                                     this.actor.hide();
                                     this.opacity = 0;
                                     this.xOffset = 0;
                                     this.yOffset = 0;
                                     if (onComplete)
                                         onComplete();
-                                 }
+                                 })
                               });
    },

-    _adjustAllocationForArrow(isWidth, alloc) {
+    _adjustAllocationForArrow: function(isWidth, alloc) {
        let themeNode = this.actor.get_theme_node();
        let borderWidth = themeNode.get_length('-arrow-border-width');
        alloc.min_size += borderWidth * 2;
@ -180,14 +180,14 @@ var BoxPointer = new Lang.Class({
        }
    },

-    _getPreferredWidth(actor, forHeight, alloc) {
+    _getPreferredWidth: function(actor, forHeight, alloc) {
        let [minInternalSize, natInternalSize] = this.bin.get_preferred_width(forHeight);
        alloc.min_size = minInternalSize;
        alloc.natural_size = natInternalSize;
        this._adjustAllocationForArrow(true, alloc);
    },

-    _getPreferredHeight(actor, forWidth, alloc) {
+    _getPreferredHeight: function(actor, forWidth, alloc) {
        let themeNode = this.actor.get_theme_node();
        let borderWidth = themeNode.get_length('-arrow-border-width');
        let [minSize, naturalSize] = this.bin.get_preferred_height(forWidth - 2 * borderWidth);
@ -196,7 +196,7 @@ var BoxPointer = new Lang.Class({
        this._adjustAllocationForArrow(false, alloc);
    },

-    _allocate(actor, box, flags) {
+    _allocate: function(actor, box, flags) {
        let themeNode = this.actor.get_theme_node();
        let borderWidth = themeNode.get_length('-arrow-border-width');
        let rise = themeNode.get_length('-arrow-rise');
@ -236,7 +236,7 @@ var BoxPointer = new Lang.Class({
        }
    },

-    _drawBorder(area) {
+    _drawBorder: function(area) {
        let themeNode = this.actor.get_theme_node();

        if (this._arrowActor) {
@ -418,7 +418,7 @@ var BoxPointer = new Lang.Class({
        cr.$dispose();
    },

-    setPosition(sourceActor, alignment) {
+    setPosition: function(sourceActor, alignment) {
        // We need to show it now to force an allocation,
        // so that we can query the correct size.
        this.actor.show();
@ -430,7 +430,7 @@ var BoxPointer = new Lang.Class({
        this._updateFlip();
    },

-    setSourceAlignment(alignment) {
+    setSourceAlignment: function(alignment) {
        this._sourceAlignment = alignment;

        if (!this._sourceActor)
@ -439,7 +439,7 @@ var BoxPointer = new Lang.Class({
        this.setPosition(this._sourceActor, this._arrowAlignment);
    },

-    _reposition() {
+    _reposition: function() {
        let sourceActor = this._sourceActor;
        let alignment = this._arrowAlignment;

@ -556,7 +556,7 @@ var BoxPointer = new Lang.Class({
    // @origin: Coordinate specifying middle of the arrow, along
    // the Y axis for St.Side.LEFT, St.Side.RIGHT from the top and X axis from
    // the left for St.Side.TOP and St.Side.BOTTOM.
-    setArrowOrigin(origin) {
+    setArrowOrigin: function(origin) {
        if (this._arrowOrigin != origin) {
            this._arrowOrigin = origin;
            this._border.queue_repaint();
@ -566,14 +566,14 @@ var BoxPointer = new Lang.Class({
    // @actor: an actor relative to which the arrow is positioned.
    // Differently from setPosition, this will not move the boxpointer itself,
    // on the arrow
-    setArrowActor(actor) {
+    setArrowActor: function(actor) {
        if (this._arrowActor != actor) {
            this._arrowActor = actor;
            this._border.queue_repaint();
        }
    },

-    _shiftActor() {
+    _shiftActor : function() {
        // Since the position of the BoxPointer depends on the allocated size
        // of the BoxPointer and the position of the source actor, trying
        // to position the BoxPointer via the x/y properties will result in
@ -584,7 +584,7 @@ var BoxPointer = new Lang.Class({
                                    -(this._yPosition + this._yOffset));
    },

-    _calculateArrowSide(arrowSide) {
+    _calculateArrowSide: function(arrowSide) {
        let sourceAllocation = Shell.util_get_transformed_allocation(this._sourceActor);
        let [minWidth, minHeight, boxWidth, boxHeight] = this._container.get_preferred_size();
        let monitorActor = this.sourceActor;
@ -618,15 +618,15 @@ var BoxPointer = new Lang.Class({
        return arrowSide;
    },

-    _updateFlip() {
+    _updateFlip: function() {
        let arrowSide = this._calculateArrowSide(this._userArrowSide);
        if (this._arrowSide != arrowSide) {
            this._arrowSide = arrowSide;
            this._reposition();
-            Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
+            Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this, function() {
                this._container.queue_relayout();
                return false;
-            });
+            }));

            this.emit('arrow-side-changed');
        }
@ -658,18 +658,18 @@ var BoxPointer = new Lang.Class({
        return this.actor.opacity;
    },

-    updateArrowSide(side) {
+    updateArrowSide: function(side) {
        this._arrowSide = side;
        this._border.queue_repaint();

        this.emit('arrow-side-changed');
    },

-    getPadding(side) {
+    getPadding: function(side) {
        return this.bin.get_theme_node().get_padding(side);
    },

-    getArrowHeight() {
+    getArrowHeight: function() {
        return this.actor.get_theme_node().get_length('-arrow-rise');
    }
 });
--- a/js/ui/calendar.js
+++ b/js/ui/calendar.js
@ -21,7 +21,7 @@ var ELLIPSIS_CHAR = '\u2026';

 var MESSAGE_ICON_SIZE = -1; // pick up from CSS

-var NC_ = (context, str) => context + '\u0004' + str;
+var NC_ = function(context, str) { return context + '\u0004' + str; };

 function sameYear(dateA, dateB) {
    return (dateA.getYear() == dateB.getYear());
@ -92,7 +92,7 @@ function _getCalendarDayAbbreviation(dayNumber) {
 var CalendarEvent = new Lang.Class({
    Name: 'CalendarEvent',

-    _init(id, date, end, summary, allDay) {
+    _init: function(id, date, end, summary, allDay) {
        this.id = id;
        this.date = date;
        this.end = end;
@ -108,27 +108,27 @@ var CalendarEvent = new Lang.Class({
 var EmptyEventSource = new Lang.Class({
    Name: 'EmptyEventSource',

-    _init() {
+    _init: function() {
        this.isLoading = false;
        this.isDummy = true;
        this.hasCalendars = false;
    },

-    destroy() {
+    destroy: function() {
    },

-    ignoreEvent(event) {
+    ignoreEvent: function(event) {
    },

-    requestRange(begin, end) {
+    requestRange: function(begin, end) {
    },

-    getEvents(begin, end) {
+    getEvents: function(begin, end) {
        let result = [];
        return result;
    },

-    hasEvents(day) {
+    hasEvents: function(day) {
        return false;
    }
 });
@ -179,7 +179,7 @@ function _dateIntervalsOverlap(a0, a1, b0, b1)
 var DBusEventSource = new Lang.Class({
    Name: 'DBusEventSource',

-    _init() {
+    _init: function() {
        this._resetCache();
        this.isLoading = false;
        this.isDummy = false;
@ -188,13 +188,14 @@ var DBusEventSource = new Lang.Class({

        let savedState = global.get_persistent_state('as', 'ignored_events');
        if (savedState)
-            savedState.deep_unpack().forEach(eventId => {
-                this._ignoredEvents.set(eventId, true);
-            });
+            savedState.deep_unpack().forEach(Lang.bind(this,
+                function(eventId) {
+                    this._ignoredEvents.set(eventId, true);
+                }));

        this._initialized = false;
        this._dbusProxy = new CalendarServer();
-        this._dbusProxy.init_async(GLib.PRIORITY_DEFAULT, null, (object, result) => {
+        this._dbusProxy.init_async(GLib.PRIORITY_DEFAULT, null, Lang.bind(this, function(object, result) {
            let loaded = false;

            try {
@ -215,28 +216,28 @@ var DBusEventSource = new Lang.Class({
                }
            }

-            this._dbusProxy.connectSignal('Changed', this._onChanged.bind(this));
+            this._dbusProxy.connectSignal('Changed', Lang.bind(this, this._onChanged));

-            this._dbusProxy.connect('notify::g-name-owner', () => {
+            this._dbusProxy.connect('notify::g-name-owner', Lang.bind(this, function() {
                if (this._dbusProxy.g_name_owner)
                    this._onNameAppeared();
                else
                    this._onNameVanished();
-            });
+            }));

-            this._dbusProxy.connect('g-properties-changed', () => {
+            this._dbusProxy.connect('g-properties-changed', Lang.bind(this, function() {
                this.emit('notify::has-calendars');
-            });
+            }));

            this._initialized = loaded;
            if (loaded) {
                this.emit('notify::has-calendars');
                this._onNameAppeared();
            }
-        });
+        }));
    },

-    destroy() {
+    destroy: function() {
        this._dbusProxy.run_dispose();
    },

@ -247,28 +248,28 @@ var DBusEventSource = new Lang.Class({
            return false;
    },

-    _resetCache() {
+    _resetCache: function() {
        this._events = [];
        this._lastRequestBegin = null;
        this._lastRequestEnd = null;
    },

-    _onNameAppeared(owner) {
+    _onNameAppeared: function(owner) {
        this._initialized = true;
        this._resetCache();
        this._loadEvents(true);
    },

-    _onNameVanished(oldOwner) {
+    _onNameVanished: function(oldOwner) {
        this._resetCache();
        this.emit('changed');
    },

-    _onChanged() {
+    _onChanged: function() {
        this._loadEvents(false);
    },

-    _onEventsReceived(results, error) {
+    _onEventsReceived: function(results, error) {
        let newEvents = [];
        let appointments = results ? results[0] : null;
        if (appointments != null) {
@ -282,7 +283,9 @@ var DBusEventSource = new Lang.Class({
                let event = new CalendarEvent(id, date, end, summary, allDay);
                newEvents.push(event);
            }
-            newEvents.sort((ev1, ev2) => ev1.date.getTime() - ev2.date.getTime());
+            newEvents.sort(function(event1, event2) {
+                return event1.date.getTime() - event2.date.getTime();
+            });
        }

        this._events = newEvents;
@ -290,7 +293,7 @@ var DBusEventSource = new Lang.Class({
        this.emit('changed');
    },

-    _loadEvents(forceReload) {
+    _loadEvents: function(forceReload) {
        // Ignore while loading
        if (!this._initialized)
            return;
@ -299,12 +302,12 @@ var DBusEventSource = new Lang.Class({
            this._dbusProxy.GetEventsRemote(this._curRequestBegin.getTime() / 1000,
                                            this._curRequestEnd.getTime() / 1000,
                                            forceReload,
-                                            this._onEventsReceived.bind(this),
+                                            Lang.bind(this, this._onEventsReceived),
                                            Gio.DBusCallFlags.NONE);
        }
    },

-    ignoreEvent(event) {
+    ignoreEvent: function(event) {
        if (this._ignoredEvents.get(event.id))
            return;

@ -314,7 +317,7 @@ var DBusEventSource = new Lang.Class({
        this.emit('changed');
    },

-    requestRange(begin, end) {
+    requestRange: function(begin, end) {
        if (!(_datesEqual(begin, this._lastRequestBegin) && _datesEqual(end, this._lastRequestEnd))) {
            this.isLoading = true;
            this._lastRequestBegin = begin;
@ -325,7 +328,7 @@ var DBusEventSource = new Lang.Class({
        }
    },

-    getEvents(begin, end) {
+    getEvents: function(begin, end) {
        let result = [];
        for(let n = 0; n < this._events.length; n++) {
            let event = this._events[n];
@ -337,7 +340,7 @@ var DBusEventSource = new Lang.Class({
                result.push(event);
            }
        }
-        result.sort((event1, event2) => {
+        result.sort(function(event1, event2) {
            // sort events by end time on ending day
            let d1 = event1.date < begin && event1.end <= end ? event1.end : event1.date;
            let d2 = event2.date < begin && event2.end <= end ? event2.end : event2.date;
@ -346,7 +349,7 @@ var DBusEventSource = new Lang.Class({
        return result;
    },

-    hasEvents(day) {
+    hasEvents: function(day) {
        let dayBegin = _getBeginningOfDay(day);
        let dayEnd = _getEndOfDay(day);

@ -363,11 +366,11 @@ Signals.addSignalMethods(DBusEventSource.prototype);
 var Calendar = new Lang.Class({
    Name: 'Calendar',

-    _init() {
+    _init: function() {
        this._weekStart = Shell.util_get_week_start();
        this._settings = new Gio.Settings({ schema_id: 'org.gnome.desktop.calendar' });

-        this._settings.connect('changed::' + SHOW_WEEKDATE_KEY, this._onSettingsChange.bind(this));
+        this._settings.connect('changed::' + SHOW_WEEKDATE_KEY, Lang.bind(this, this._onSettingsChange));
        this._useWeekdate = this._settings.get_boolean(SHOW_WEEKDATE_KEY);

        /**
@ -398,25 +401,25 @@ var Calendar = new Lang.Class({
                                     reactive: true });

        this.actor.connect('scroll-event',
-                           this._onScroll.bind(this));
+                           Lang.bind(this, this._onScroll));

        this._buildHeader ();
    },

    // @eventSource: is an object implementing the EventSource API, e.g. the
    // requestRange(), getEvents(), hasEvents() methods and the ::changed signal.
-    setEventSource(eventSource) {
+    setEventSource: function(eventSource) {
        this._eventSource = eventSource;
-        this._eventSource.connect('changed', () => {
+        this._eventSource.connect('changed', Lang.bind(this, function() {
            this._rebuildCalendar();
            this._update();
-        });
+        }));
        this._rebuildCalendar();
        this._update();
    },

    // Sets the calendar to show a specific date
-    setDate(date) {
+    setDate: function(date) {
        if (sameDay(date, this._selectedDate))
            return;

@ -425,14 +428,14 @@ var Calendar = new Lang.Class({
        this.emit('selected-date-changed', new Date(this._selectedDate));
    },

-    updateTimeZone() {
+    updateTimeZone: function() {
        // The calendar need to be rebuilt after a time zone update because
        // the date might have changed.
        this._rebuildCalendar();
        this._update();
    },

-    _buildHeader() {
+    _buildHeader: function() {
        let layout = this.actor.layout_manager;
        let offsetCols = this._useWeekdate ? 1 : 0;
        this.actor.destroy_all_children();
@ -446,7 +449,7 @@ var Calendar = new Lang.Class({
                                           accessible_name: _("Previous month"),
                                           can_focus: true });
        this._topBox.add(this._backButton);
-        this._backButton.connect('clicked', this._onPrevMonthButtonClicked.bind(this));
+        this._backButton.connect('clicked', Lang.bind(this, this._onPrevMonthButtonClicked));

        this._monthLabel = new St.Label({style_class: 'calendar-month-label',
                                         can_focus: true });
@ -456,7 +459,7 @@ var Calendar = new Lang.Class({
                                              accessible_name: _("Next month"),
                                              can_focus: true });
        this._topBox.add(this._forwardButton);
-        this._forwardButton.connect('clicked', this._onNextMonthButtonClicked.bind(this));
+        this._forwardButton.connect('clicked', Lang.bind(this, this._onNextMonthButtonClicked));

        // Add weekday labels...
        //
@ -487,7 +490,7 @@ var Calendar = new Lang.Class({
        this._firstDayIndex = this.actor.get_n_children();
    },

-    _onScroll(actor, event) {
+    _onScroll : function(actor, event) {
        switch (event.get_scroll_direction()) {
        case Clutter.ScrollDirection.UP:
        case Clutter.ScrollDirection.LEFT:
@ -501,7 +504,7 @@ var Calendar = new Lang.Class({
        return Clutter.EVENT_PROPAGATE;
    },

-    _onPrevMonthButtonClicked() {
+    _onPrevMonthButtonClicked: function() {
        let newDate = new Date(this._selectedDate);
        let oldMonth = newDate.getMonth();
        if (oldMonth == 0) {
@ -525,7 +528,7 @@ var Calendar = new Lang.Class({
        this.setDate(newDate);
    },

-    _onNextMonthButtonClicked() {
+    _onNextMonthButtonClicked: function() {
        let newDate = new Date(this._selectedDate);
        let oldMonth = newDate.getMonth();
        if (oldMonth == 11) {
@ -549,14 +552,14 @@ var Calendar = new Lang.Class({
        this.setDate(newDate);
    },

-    _onSettingsChange() {
+    _onSettingsChange: function() {
        this._useWeekdate = this._settings.get_boolean(SHOW_WEEKDATE_KEY);
        this._buildHeader();
        this._rebuildCalendar();
        this._update();
    },

-    _rebuildCalendar() {
+    _rebuildCalendar: function() {
        let now = new Date();

        // Remove everything but the topBox and the weekday labels
@ -614,11 +617,11 @@ var Calendar = new Lang.Class({
                button.reactive = false;

            button._date = new Date(iter);
-            button.connect('clicked', () => {
+            button.connect('clicked', Lang.bind(this, function() {
                this._shouldDateGrabFocus = true;
                this.setDate(button._date);
                this._shouldDateGrabFocus = false;
-            });
+            }));

            let hasEvents = this._eventSource.hasEvents(iter);
            let styleClass = 'calendar-day-base calendar-day';
@ -677,7 +680,7 @@ var Calendar = new Lang.Class({
        this._eventSource.requestRange(beginDate, iter);
    },

-    _update() {
+    _update: function() {
        let now = new Date();

        if (sameYear(this._selectedDate, now))
@ -688,7 +691,7 @@ var Calendar = new Lang.Class({
        if (!this._calendarBegin || !sameMonth(this._selectedDate, this._calendarBegin) || !sameDay(now, this._markedAsToday))
            this._rebuildCalendar();

-        this._buttons.forEach(button => {
+        this._buttons.forEach(Lang.bind(this, function(button) {
            if (sameDay(button._date, this._selectedDate)) {
                button.add_style_pseudo_class('selected');
                if (this._shouldDateGrabFocus)
@ -696,7 +699,7 @@ var Calendar = new Lang.Class({
            }
            else
                button.remove_style_pseudo_class('selected');
-        });
+        }));
    }
 });
 Signals.addSignalMethods(Calendar.prototype);
@ -705,7 +708,7 @@ var EventMessage = new Lang.Class({
    Name: 'EventMessage',
    Extends: MessageList.Message,

-    _init(event, date) {
+    _init: function(event, date) {
        this._event = event;
        this._date = date;

@ -720,7 +723,7 @@ var EventMessage = new Lang.Class({
        });
    },

-    _formatEventTime() {
+    _formatEventTime: function() {
        let periodBegin = _getBeginningOfDay(this._date);
        let periodEnd = _getEndOfDay(this._date);
        let allDay = (this._event.allDay || (this._event.date <= periodBegin &&
@ -753,7 +756,7 @@ var EventMessage = new Lang.Class({
        return title;
    },

-    canClose() {
+    canClose: function() {
        return isToday(this._date);
    }
 });
@ -762,7 +765,7 @@ var NotificationMessage = new Lang.Class({
    Name: 'NotificationMessage',
    Extends: MessageList.Message,

-    _init(notification) {
+    _init: function(notification) {
        this.notification = notification;

        this.parent(notification.title, notification.bannerBodyText);
@ -770,19 +773,21 @@ var NotificationMessage = new Lang.Class({

        this.setIcon(this._getIcon());

-        this.connect('close', () => {
-            this._closed = true;
-            this.notification.destroy(MessageTray.NotificationDestroyedReason.DISMISSED);
-        });
-        this._destroyId = notification.connect('destroy', () => {
-            if (!this._closed)
-                this.close();
-        });
+        this.connect('close', Lang.bind(this,
+            function() {
+                this._closed = true;
+                this.notification.destroy(MessageTray.NotificationDestroyedReason.DISMISSED);
+            }));
+        this._destroyId = notification.connect('destroy', Lang.bind(this,
+            function() {
+                if (!this._closed)
+                    this.close();
+            }));
        this._updatedId = notification.connect('updated',
-                                               this._onUpdated.bind(this));
+                                               Lang.bind(this, this._onUpdated));
    },

-    _getIcon() {
+    _getIcon: function() {
        if (this.notification.gicon)
            return new St.Icon({ gicon: this.notification.gicon,
                                 icon_size: MESSAGE_ICON_SIZE });
@ -790,18 +795,18 @@ var NotificationMessage = new Lang.Class({
            return this.notification.source.createIcon(MESSAGE_ICON_SIZE);
    },

-    _onUpdated(n, clear) {
+    _onUpdated: function(n, clear) {
        this.setIcon(this._getIcon());
        this.setTitle(n.title);
        this.setBody(n.bannerBodyText);
        this.setUseBodyMarkup(n.bannerBodyMarkup);
    },

-    _onClicked() {
+    _onClicked: function() {
        this.notification.activate();
    },

-    _onDestroy() {
+    _onDestroy: function() {
        if (this._updatedId)
            this.notification.disconnect(this._updatedId);
        this._updatedId = 0;
@ -816,13 +821,11 @@ var EventsSection = new Lang.Class({
    Name: 'EventsSection',
    Extends: MessageList.MessageListSection,

-    _init() {
+    _init: function() {
        this._desktopSettings = new Gio.Settings({ schema_id: 'org.gnome.desktop.interface' });
-        this._desktopSettings.connect('changed', this._reloadEvents.bind(this));
+        this._desktopSettings.connect('changed', Lang.bind(this, this._reloadEvents));
        this._eventSource = new EmptyEventSource();

-        this._messageById = new Map();
-
        this.parent();

        this._title = new St.Button({ style_class: 'events-section-title',
@ -831,28 +834,28 @@ var EventsSection = new Lang.Class({
                                      can_focus: true });
        this.actor.insert_child_below(this._title, null);

-        this._title.connect('clicked', this._onTitleClicked.bind(this));
-        this._title.connect('key-focus-in', this._onKeyFocusIn.bind(this));
+        this._title.connect('clicked', Lang.bind(this, this._onTitleClicked));
+        this._title.connect('key-focus-in', Lang.bind(this, this._onKeyFocusIn));

        Shell.AppSystem.get_default().connect('installed-changed',
-                                              this._appInstalledChanged.bind(this));
+                                              Lang.bind(this, this._appInstalledChanged));
        this._appInstalledChanged();
    },

-    _ignoreEvent(event) {
+    _ignoreEvent: function(event) {
        this._eventSource.ignoreEvent(event);
    },

-    setEventSource(eventSource) {
+    setEventSource: function(eventSource) {
        this._eventSource = eventSource;
-        this._eventSource.connect('changed', this._reloadEvents.bind(this));
+        this._eventSource.connect('changed', Lang.bind(this, this._reloadEvents));
    },

    get allowed() {
        return Main.sessionMode.showCalendarEvents;
    },

-    _updateTitle() {
+    _updateTitle: function() {
        this._title.visible = !isToday(this._date);

        if (!this._title.visible)
@ -871,57 +874,45 @@ var EventsSection = new Lang.Class({
        this._title.label = this._date.toLocaleFormat(dayFormat);
    },

-    _reloadEvents() {
+    _reloadEvents: function() {
        if (this._eventSource.isLoading)
            return;

        this._reloading = true;

+        this._list.destroy_all_children();
+
        let periodBegin = _getBeginningOfDay(this._date);
        let periodEnd = _getEndOfDay(this._date);
        let events = this._eventSource.getEvents(periodBegin, periodEnd);

-        let ids = events.map(e => e.id);
-        this._messageById.forEach((message, id) => {
-            if (ids.includes(id))
-                return;
-            this._messageById.delete(id);
-            this.removeMessage(message);
-        });
-
        for (let i = 0; i < events.length; i++) {
            let event = events[i];

-            let message = this._messageById.get(event.id);
-            if (!message) {
-                message = new EventMessage(event, this._date);
-                message.connect('close', () => {
-                    this._ignoreEvent(event);
-                });
-                this._messageById.set(event.id, message);
-                this.addMessage(message, false);
-            } else {
-                this.moveMessage(message, i, false);
-            }
+            let message = new EventMessage(event, this._date);
+            message.connect('close', Lang.bind(this, function() {
+                this._ignoreEvent(event);
+            }));
+            this.addMessage(message, false);
        }

        this._reloading = false;
        this._sync();
    },

-    _appInstalledChanged() {
+    _appInstalledChanged: function() {
        this._calendarApp = undefined;
        this._title.reactive = (this._getCalendarApp() != null);
    },

-    _getCalendarApp() {
+    _getCalendarApp: function() {
        if (this._calendarApp !== undefined)
            return this._calendarApp;

        let apps = Gio.AppInfo.get_recommended_for_type('text/calendar');
        if (apps && (apps.length > 0)) {
            let app = Gio.AppInfo.get_default_for_type('text/calendar', false);
-            let defaultInRecommended = apps.some(a => a.equal(app));
+            let defaultInRecommended = apps.some(function(a) { return a.equal(app); });
            this._calendarApp = defaultInRecommended ? app : apps[0];
        } else {
            this._calendarApp = null;
@ -929,7 +920,7 @@ var EventsSection = new Lang.Class({
        return this._calendarApp;
    },

-    _onTitleClicked() {
+    _onTitleClicked: function() {
        Main.overview.hide();
        Main.panel.closeCalendar();

@ -939,17 +930,17 @@ var EventsSection = new Lang.Class({
        app.launch([], global.create_app_launch_context(0, -1));
    },

-    setDate(date) {
+    setDate: function(date) {
        this.parent(date);
        this._updateTitle();
        this._reloadEvents();
    },

-    _shouldShow() {
+    _shouldShow: function() {
        return !this.empty || !isToday(this._date);
    },

-    _sync() {
+    _sync: function() {
        if (this._reloading)
            return;

@ -961,18 +952,18 @@ var NotificationSection = new Lang.Class({
    Name: 'NotificationSection',
    Extends: MessageList.MessageListSection,

-    _init() {
+    _init: function() {
        this.parent();

        this._sources = new Map();
        this._nUrgent = 0;

-        Main.messageTray.connect('source-added', this._sourceAdded.bind(this));
-        Main.messageTray.getSources().forEach(source => {
+        Main.messageTray.connect('source-added', Lang.bind(this, this._sourceAdded));
+        Main.messageTray.getSources().forEach(Lang.bind(this, function(source) {
            this._sourceAdded(Main.messageTray, source);
-        });
+        }));

-        this.actor.connect('notify::mapped', this._onMapped.bind(this));
+        this.actor.connect('notify::mapped', Lang.bind(this, this._onMapped));
    },

    get allowed() {
@ -980,7 +971,7 @@ var NotificationSection = new Lang.Class({
               !Main.sessionMode.isGreeter;
    },

-    _createTimeLabel(datetime) {
+    _createTimeLabel: function(datetime) {
        let label = new St.Label({ style_class: 'event-time',
                                   x_align: Clutter.ActorAlign.START,
                                   y_align: Clutter.ActorAlign.END });
@ -991,37 +982,39 @@ var NotificationSection = new Lang.Class({
        return label;
    },

-    _sourceAdded(tray, source) {
+    _sourceAdded: function(tray, source) {
        let obj = {
            destroyId: 0,
            notificationAddedId: 0,
        };

-        obj.destroyId = source.connect('destroy', source => {
+        obj.destroyId = source.connect('destroy', Lang.bind(this, function(source) {
            this._onSourceDestroy(source, obj);
-        });
+        }));
        obj.notificationAddedId = source.connect('notification-added',
-                                                 this._onNotificationAdded.bind(this));
+                                                 Lang.bind(this, this._onNotificationAdded));

        this._sources.set(source, obj);
    },

-    _onNotificationAdded(source, notification) {
+    _onNotificationAdded: function(source, notification) {
        let message = new NotificationMessage(notification);
        message.setSecondaryActor(this._createTimeLabel(notification.datetime));

        let isUrgent = notification.urgency == MessageTray.Urgency.CRITICAL;

-        let updatedId = notification.connect('updated', () => {
-            message.setSecondaryActor(this._createTimeLabel(notification.datetime));
-            this.moveMessage(message, isUrgent ? 0 : this._nUrgent, this.actor.mapped);
-        });
-        let destroyId = notification.connect('destroy', () => {
-            notification.disconnect(destroyId);
-            notification.disconnect(updatedId);
-            if (isUrgent)
-                this._nUrgent--;
-        });
+        let updatedId = notification.connect('updated', Lang.bind(this,
+            function() {
+                message.setSecondaryActor(this._createTimeLabel(notification.datetime));
+                this.moveMessage(message, isUrgent ? 0 : this._nUrgent, this.actor.mapped);
+            }));
+        let destroyId = notification.connect('destroy', Lang.bind(this,
+            function() {
+                notification.disconnect(destroyId);
+                notification.disconnect(updatedId);
+                if (isUrgent)
+                    this._nUrgent--;
+            }));

        if (isUrgent) {
            // Keep track of urgent notifications to keep them on top
@ -1037,14 +1030,14 @@ var NotificationSection = new Lang.Class({
        this.addMessageAtIndex(message, index, this.actor.mapped);
    },

-    _onSourceDestroy(source, obj) {
+    _onSourceDestroy: function(source, obj) {
        source.disconnect(obj.destroyId);
        source.disconnect(obj.notificationAddedId);

        this._sources.delete(source);
    },

-    _onMapped() {
+    _onMapped: function() {
        if (!this.actor.mapped)
            return;

@ -1053,7 +1046,7 @@ var NotificationSection = new Lang.Class({
                message.notification.acknowledged = true;
    },

-    _shouldShow() {
+    _shouldShow: function() {
        return !this.empty && isToday(this._date);
    }
 });
@ -1061,7 +1054,7 @@ var NotificationSection = new Lang.Class({
 var Placeholder = new Lang.Class({
    Name: 'Placeholder',

-    _init() {
+    _init: function() {
        this.actor = new St.BoxLayout({ style_class: 'message-list-placeholder',
                                        vertical: true });

@ -1081,14 +1074,14 @@ var Placeholder = new Lang.Class({
        this._sync();
    },

-    setDate(date) {
+    setDate: function(date) {
        if (sameDay(this._date, date))
            return;
        this._date = date;
        this._sync();
    },

-    _sync() {
+    _sync: function() {
        let today = isToday(this._date);
        if (today && this._icon.gicon == this._todayIcon)
            return;
@ -1108,7 +1101,7 @@ var Placeholder = new Lang.Class({
 var CalendarMessageList = new Lang.Class({
    Name: 'CalendarMessageList',

-    _init() {
+    _init: function() {
        this.actor = new St.Widget({ style_class: 'message-list',
                                     layout_manager: new Clutter.BinLayout(),
                                     x_expand: true, y_expand: true });
@ -1153,10 +1146,10 @@ var CalendarMessageList = new Lang.Class({
        this._eventsSection = new EventsSection();
        this._addSection(this._eventsSection);

-        Main.sessionMode.connect('updated', this._sync.bind(this));
+        Main.sessionMode.connect('updated', Lang.bind(this, this._sync));
    },

-    _addSection(section) {
+    _addSection: function(section) {
        let obj = {
            destroyId: 0,
            visibleId:  0,
@ -1164,24 +1157,25 @@ var CalendarMessageList = new Lang.Class({
            canClearChangedId: 0,
            keyFocusId: 0
        };
-        obj.destroyId = section.actor.connect('destroy', () => {
-            this._removeSection(section);
-        });
+        obj.destroyId = section.actor.connect('destroy', Lang.bind(this,
+            function() {
+                this._removeSection(section);
+            }));
        obj.visibleId = section.actor.connect('notify::visible',
-                                              this._sync.bind(this));
+                                              Lang.bind(this, this._sync));
        obj.emptyChangedId = section.connect('empty-changed',
-                                             this._sync.bind(this));
+                                             Lang.bind(this, this._sync));
        obj.canClearChangedId = section.connect('can-clear-changed',
-                                                this._sync.bind(this));
+                                                Lang.bind(this, this._sync));
        obj.keyFocusId = section.connect('key-focus-in',
-                                         this._onKeyFocusIn.bind(this));
+                                         Lang.bind(this, this._onKeyFocusIn));

        this._sections.set(section, obj);
        this._sectionList.add_actor(section.actor);
        this._sync();
    },

-    _removeSection(section) {
+    _removeSection: function(section) {
        let obj = this._sections.get(section);
        section.actor.disconnect(obj.destroyId);
        section.actor.disconnect(obj.visibleId);
@ -1194,30 +1188,36 @@ var CalendarMessageList = new Lang.Class({
        this._sync();
    },

-    _onKeyFocusIn(section, actor) {
+    _onKeyFocusIn: function(section, actor) {
        Util.ensureActorVisibleInScrollView(this._scrollView, actor);
    },

-    _sync() {
+    _sync: function() {
        let sections = [...this._sections.keys()];
-        let visible = sections.some(s => s.allowed);
+        let visible = sections.some(function(s) {
+            return s.allowed;
+        });
        this.actor.visible = visible;
        if (!visible)
            return;

-        let empty = sections.every(s => s.empty || !s.actor.visible);
+        let empty = sections.every(function(s) {
+            return s.empty || !s.actor.visible;
+        });
        this._placeholder.actor.visible = empty;
        this._clearButton.visible = !empty;

-        let canClear = sections.some(s => s.canClear && s.actor.visible);
+        let canClear = sections.some(function(s) {
+            return s.canClear && s.actor.visible;
+        });
        this._clearButton.reactive = canClear;
    },

-    setEventSource(eventSource) {
+    setEventSource: function(eventSource) {
        this._eventsSection.setEventSource(eventSource);
    },

-    setDate(date) {
+    setDate: function(date) {
        for (let section of this._sections.keys())
            section.setDate(date);
        this._placeholder.setDate(date);
--- a/js/ui/checkBox.js
+++ b/js/ui/checkBox.js
@ -7,7 +7,7 @@ const Lang = imports.lang;
 var CheckBox = new Lang.Class({
    Name: 'CheckBox',

-    _init(label) {
+    _init: function(label) {
        let container = new St.BoxLayout();
        this.actor = new St.Button({ style_class: 'check-box',
                                     child: container,
@ -30,11 +30,11 @@ var CheckBox = new Lang.Class({
            this.setLabel(label);
    },

-    setLabel(label) {
+    setLabel: function(label) {
        this._label.set_text(label);
    },

-    getLabelActor() {
+    getLabelActor: function() {
        return this._label;
    }
 });
--- a/js/ui/closeDialog.js
+++ b/js/ui/closeDialog.js
@ -2,7 +2,6 @@

 const Clutter = imports.gi.Clutter;
 const Gio = imports.gi.Gio;
-const GLib = imports.gi.GLib;
 const GObject = imports.gi.GObject;
 const Lang = imports.lang;
 const Meta = imports.gi.Meta;
@ -14,7 +13,6 @@ const Tweener = imports.ui.tweener;

 var FROZEN_WINDOW_BRIGHTNESS = -0.3
 var DIALOG_TRANSITION_TIME = 0.15
-var ALIVE_TIMEOUT = 5000;

 var CloseDialog = new Lang.Class({
    Name: 'CloseDialog',
@ -24,11 +22,10 @@ var CloseDialog = new Lang.Class({
        'window': GObject.ParamSpec.override('window', Meta.CloseDialog)
    },

-    _init(window) {
+    _init: function (window) {
        this.parent();
        this._window = window;
        this._dialog = null;
-        this._timeoutId = 0;
    },

    get window() {
@ -39,7 +36,7 @@ var CloseDialog = new Lang.Class({
        this._window = window;
    },

-    _createDialogContent() {
+    _createDialogContent: function () {
        let tracker = Shell.WindowTracker.get_default();
        let windowApp = tracker.get_window_app(this._window);

@ -51,7 +48,7 @@ var CloseDialog = new Lang.Class({
        return new Dialog.MessageDialogContent({ icon, title, subtitle });
    },

-    _initDialog() {
+    _initDialog: function () {
        if (this._dialog)
            return;

@ -62,16 +59,16 @@ var CloseDialog = new Lang.Class({

        this._dialog.addContent(this._createDialogContent());
        this._dialog.addButton({ label:   _('Force Quit'),
-                                 action:  this._onClose.bind(this),
+                                 action:  Lang.bind(this, this._onClose),
                                 default: true });
        this._dialog.addButton({ label:  _('Wait'),
-                                 action: this._onWait.bind(this),
+                                 action: Lang.bind(this, this._onWait),
                                 key:    Clutter.Escape });

        global.focus_manager.add_group(this._dialog);
    },

-    _addWindowEffect() {
+    _addWindowEffect: function () {
        // We set the effect on the surface actor, so the dialog itself
        // (which is a child of the MetaWindowActor) does not get the
        // effect applied itself.
@ -82,32 +79,24 @@ var CloseDialog = new Lang.Class({
        surfaceActor.add_effect_with_name("gnome-shell-frozen-window", effect);
    },

-    _removeWindowEffect() {
+    _removeWindowEffect: function () {
        let windowActor = this._window.get_compositor_private();
        let surfaceActor = windowActor.get_first_child();
        surfaceActor.remove_effect_by_name("gnome-shell-frozen-window");
    },

-    _onWait() {
+    _onWait: function () {
        this.response(Meta.CloseDialogResponse.WAIT);
    },

-    _onClose() {
+    _onClose: function () {
        this.response(Meta.CloseDialogResponse.FORCE_CLOSE);
    },

-    vfunc_show() {
+    vfunc_show: function () {
        if (this._dialog != null)
            return;

-        Meta.disable_unredirect_for_display(global.display);
-
-        this._timeoutId = GLib.timeout_add(GLib.PRIORITY_DEFAULT, ALIVE_TIMEOUT,
-            () => {
-                this._window.check_alive(global.display.get_current_time_roundtrip());
-                return GLib.SOURCE_CONTINUE;
-            });
-
        this._addWindowEffect();
        this._initDialog();

@ -118,21 +107,16 @@ var CloseDialog = new Lang.Class({
                         { scale_y: 1,
                           transition: 'linear',
                           time: DIALOG_TRANSITION_TIME,
-                           onComplete: () => {
+                           onComplete: Lang.bind(this, function () {
                               Main.layoutManager.trackChrome(this._dialog, { affectsInputRegion: true });
-                           }
+                           })
                         });
    },

-    vfunc_hide() {
+    vfunc_hide: function () {
        if (this._dialog == null)
            return;

-        Meta.enable_unredirect_for_display(global.display);
-
-        GLib.source_remove(this._timeoutId);
-        this._timeoutId = 0;
-
        let dialog = this._dialog;
        this._dialog = null;
        this._removeWindowEffect();
@ -141,13 +125,13 @@ var CloseDialog = new Lang.Class({
                         { scale_y: 0,
                           transition: 'linear',
                           time: DIALOG_TRANSITION_TIME,
-                           onComplete: () => {
+                           onComplete: Lang.bind(this, function () {
                               dialog.destroy();
-                           }
+                           })
                         });
    },

-    vfunc_focus() {
+    vfunc_focus: function () {
        if (this._dialog)
            this._dialog.grab_key_focus();
    }
--- a/js/ui/components/init.js
+++ b/js/ui/components/init.js
@ -5,38 +5,38 @@ const Main = imports.ui.main;
 var ComponentManager = new Lang.Class({
    Name: 'ComponentManager',

-    _init() {
+    _init: function() {
        this._allComponents = {};
        this._enabledComponents = [];

-        Main.sessionMode.connect('updated', this._sessionUpdated.bind(this));
+        Main.sessionMode.connect('updated', Lang.bind(this, this._sessionUpdated));
        this._sessionUpdated();
    },

-    _sessionUpdated() {
+    _sessionUpdated: function() {
        let newEnabledComponents = Main.sessionMode.components;

-        newEnabledComponents.filter(
-            name => this._enabledComponents.indexOf(name) == -1
-        ).forEach(name => {
+        newEnabledComponents.filter(Lang.bind(this, function(name) {
+            return this._enabledComponents.indexOf(name) == -1;
+        })).forEach(Lang.bind(this, function(name) {
            this._enableComponent(name);
-        });
+        }));

-        this._enabledComponents.filter(
-            name => newEnabledComponents.indexOf(name) == -1
-        ).forEach(name => {
+        this._enabledComponents.filter(Lang.bind(this, function(name) {
+            return newEnabledComponents.indexOf(name) == -1;
+        })).forEach(Lang.bind(this, function(name) {
            this._disableComponent(name);
-        });
+        }));

        this._enabledComponents = newEnabledComponents;
    },

-    _importComponent(name) {
+    _importComponent: function(name) {
        let module = imports.ui.components[name];
        return module.Component;
    },

-    _ensureComponent(name) {
+    _ensureComponent: function(name) {
        let component = this._allComponents[name];
        if (component)
            return component;
@ -50,13 +50,13 @@ var ComponentManager = new Lang.Class({
        return component;
    },

-    _enableComponent(name) {
+    _enableComponent: function(name) {
        let component = this._ensureComponent(name);
 	if (component)
            component.enable();
    },

-    _disableComponent(name) {
+    _disableComponent: function(name) {
        let component = this._allComponents[name];
        if (component == null)
            return;
--- a/js/ui/components/automountManager.js
+++ b/js/ui/components/automountManager.js
@ -22,31 +22,31 @@ var AUTORUN_EXPIRE_TIMEOUT_SECS = 10;
 var AutomountManager = new Lang.Class({
    Name: 'AutomountManager',

-    _init() {
+    _init: function() {
        this._settings = new Gio.Settings({ schema_id: SETTINGS_SCHEMA });
        this._volumeQueue = [];
        this._session = new GnomeSession.SessionManager();
        this._session.connectSignal('InhibitorAdded',
-                                    this._InhibitorsChanged.bind(this));
+                                    Lang.bind(this, this._InhibitorsChanged));
        this._session.connectSignal('InhibitorRemoved',
-                                    this._InhibitorsChanged.bind(this));
+                                    Lang.bind(this, this._InhibitorsChanged));
        this._inhibited = false;

        this._volumeMonitor = Gio.VolumeMonitor.get();
    },

-    enable() {
-        this._volumeAddedId = this._volumeMonitor.connect('volume-added', this._onVolumeAdded.bind(this));
-        this._volumeRemovedId = this._volumeMonitor.connect('volume-removed', this._onVolumeRemoved.bind(this));
-        this._driveConnectedId = this._volumeMonitor.connect('drive-connected', this._onDriveConnected.bind(this));
-        this._driveDisconnectedId = this._volumeMonitor.connect('drive-disconnected', this._onDriveDisconnected.bind(this));
-        this._driveEjectButtonId = this._volumeMonitor.connect('drive-eject-button', this._onDriveEjectButton.bind(this));
+    enable: function() {
+        this._volumeAddedId = this._volumeMonitor.connect('volume-added', Lang.bind(this, this._onVolumeAdded));
+        this._volumeRemovedId = this._volumeMonitor.connect('volume-removed', Lang.bind(this, this._onVolumeRemoved));
+        this._driveConnectedId = this._volumeMonitor.connect('drive-connected', Lang.bind(this, this._onDriveConnected));
+        this._driveDisconnectedId = this._volumeMonitor.connect('drive-disconnected', Lang.bind(this, this._onDriveDisconnected));
+        this._driveEjectButtonId = this._volumeMonitor.connect('drive-eject-button', Lang.bind(this, this._onDriveEjectButton));

-        this._mountAllId = Mainloop.idle_add(this._startupMountAll.bind(this));
+        this._mountAllId = Mainloop.idle_add(Lang.bind(this, this._startupMountAll));
        GLib.Source.set_name_by_id(this._mountAllId, '[gnome-shell] this._startupMountAll');
    },

-    disable() {
+    disable: function() {
        this._volumeMonitor.disconnect(this._volumeAddedId);
        this._volumeMonitor.disconnect(this._volumeRemovedId);
        this._volumeMonitor.disconnect(this._driveConnectedId);
@ -59,28 +59,29 @@ var AutomountManager = new Lang.Class({
        }
    },

-    _InhibitorsChanged(object, senderName, [inhibtor]) {
+    _InhibitorsChanged: function(object, senderName, [inhibtor]) {
        this._session.IsInhibitedRemote(GNOME_SESSION_AUTOMOUNT_INHIBIT,
-            (result, error) => {
-                if (!error) {
-                    this._inhibited = result[0];
-                }
-            });
+            Lang.bind(this,
+                function(result, error) {
+                    if (!error) {
+                        this._inhibited = result[0];
+                    }
+                }));
    },

-    _startupMountAll() {
+    _startupMountAll: function() {
        let volumes = this._volumeMonitor.get_volumes();
-        volumes.forEach(volume => {
+        volumes.forEach(Lang.bind(this, function(volume) {
            this._checkAndMountVolume(volume, { checkSession: false,
                                                useMountOp: false,
                                                allowAutorun: false });
-        });
+        }));

        this._mountAllId = 0;
        return GLib.SOURCE_REMOVE;
    },

-    _onDriveConnected() {
+    _onDriveConnected: function() {
        // if we're not in the current ConsoleKit session,
        // or screensaver is active, don't play sounds
        if (!this._session.SessionIsActive)
@ -91,7 +92,7 @@ var AutomountManager = new Lang.Class({
                                null);
    },

-    _onDriveDisconnected() {
+    _onDriveDisconnected: function() {
        // if we're not in the current ConsoleKit session,
        // or screensaver is active, don't play sounds
        if (!this._session.SessionIsActive)
@ -102,7 +103,7 @@ var AutomountManager = new Lang.Class({
                                null);
    },

-    _onDriveEjectButton(monitor, drive) {
+    _onDriveEjectButton: function(monitor, drive) {
        // TODO: this code path is not tested, as the GVfs volume monitor
        // doesn't emit this signal just yet.
        if (!this._session.SessionIsActive)
@ -113,31 +114,31 @@ var AutomountManager = new Lang.Class({
        if (drive.can_stop()) {
            drive.stop
                (Gio.MountUnmountFlags.FORCE, null, null,
-                 (drive, res) => {
+                 Lang.bind(this, function(drive, res) {
                     try {
                         drive.stop_finish(res);
                     } catch (e) {
                         log("Unable to stop the drive after drive-eject-button " + e.toString());
                     }
-                 });
+                 }));
        } else if (drive.can_eject()) {
            drive.eject_with_operation 
                (Gio.MountUnmountFlags.FORCE, null, null,
-                 (drive, res) => {
+                 Lang.bind(this, function(drive, res) {
                     try {
                         drive.eject_with_operation_finish(res);
                     } catch (e) {
                         log("Unable to eject the drive after drive-eject-button " + e.toString());
                     }
-                 });
+                 }));
        }
    },

-    _onVolumeAdded(monitor, volume) {
+    _onVolumeAdded: function(monitor, volume) {
        this._checkAndMountVolume(volume);
    },

-    _checkAndMountVolume(volume, params) {
+    _checkAndMountVolume: function(volume, params) {
        params = Params.parse(params, { checkSession: true,
                                        useMountOp: true,
                                        allowAutorun: true });
@ -177,7 +178,7 @@ var AutomountManager = new Lang.Class({
        }
    },

-    _mountVolume(volume, operation, allowAutorun) {
+    _mountVolume: function(volume, operation, allowAutorun) {
        if (allowAutorun)
            this._allowAutorun(volume);

@ -185,10 +186,10 @@ var AutomountManager = new Lang.Class({
        volume._operation = operation;

        volume.mount(0, mountOp, null,
-                     this._onVolumeMounted.bind(this));
+                     Lang.bind(this, this._onVolumeMounted));
    },

-    _onVolumeMounted(volume, res) {
+    _onVolumeMounted: function(volume, res) {
        this._allowAutorunExpire(volume);

        try {
@ -209,12 +210,14 @@ var AutomountManager = new Lang.Class({
        }
    },

-    _onVolumeRemoved(monitor, volume) {
+    _onVolumeRemoved: function(monitor, volume) {
        this._volumeQueue = 
-            this._volumeQueue.filter(element => (element != volume));
+            this._volumeQueue.filter(function(element) {
+                return (element != volume);
+            });
    },

-    _reaskPassword(volume) {
+    _reaskPassword: function(volume) {
        let existingDialog = volume._operation ? volume._operation.borrowDialog() : null;
        let operation = 
            new ShellMountOperation.ShellMountOperation(volume,
@ -222,17 +225,17 @@ var AutomountManager = new Lang.Class({
        this._mountVolume(volume, operation);
    },

-    _closeOperation(volume) {
+    _closeOperation: function(volume) {
        if (volume._operation)
            volume._operation.close();
    },

-    _allowAutorun(volume) {
+    _allowAutorun: function(volume) {
        volume.allowAutorun = true;
    },

-    _allowAutorunExpire(volume) {
-        let id = Mainloop.timeout_add_seconds(AUTORUN_EXPIRE_TIMEOUT_SECS, () => {
+    _allowAutorunExpire: function(volume) {
+        let id = Mainloop.timeout_add_seconds(AUTORUN_EXPIRE_TIMEOUT_SECS, function() {
            volume.allowAutorun = false;
            return GLib.SOURCE_REMOVE;
        });
--- a/js/ui/components/autorunManager.js
+++ b/js/ui/components/autorunManager.js
@ -93,25 +93,26 @@ function HotplugSniffer() {
 var ContentTypeDiscoverer = new Lang.Class({
    Name: 'ContentTypeDiscoverer',

-    _init(callback) {
+    _init: function(callback) {
        this._callback = callback;
        this._settings = new Gio.Settings({ schema_id: SETTINGS_SCHEMA });
    },

-    guessContentTypes(mount) {
+    guessContentTypes: function(mount) {
        let autorunEnabled = !this._settings.get_boolean(SETTING_DISABLE_AUTORUN);
        let shouldScan = autorunEnabled && !isMountNonLocal(mount);

        if (shouldScan) {
            // guess mount's content types using GIO
            mount.guess_content_type(false, null,
-                                     this._onContentTypeGuessed.bind(this));
+                                     Lang.bind(this,
+                                               this._onContentTypeGuessed));
        } else {
            this._emitCallback(mount, []);
        }
    },

-    _onContentTypeGuessed(mount, res) {
+    _onContentTypeGuessed: function(mount, res) {
        let contentTypes = [];

        try {
@ -128,23 +129,23 @@ var ContentTypeDiscoverer = new Lang.Class({

            let hotplugSniffer = new HotplugSniffer();
            hotplugSniffer.SniffURIRemote(root.get_uri(),
-                 ([contentTypes]) => {
+                 Lang.bind(this, function([contentTypes]) {
                     this._emitCallback(mount, contentTypes);
-                 });
+                 }));
        }
    },

-    _emitCallback(mount, contentTypes) {
+    _emitCallback: function(mount, contentTypes) {
        if (!contentTypes)
            contentTypes = [];

        // we're not interested in win32 software content types here
-        contentTypes = contentTypes.filter(
-            type => (type != 'x-content/win32-software')
-        );
+        contentTypes = contentTypes.filter(function(type) {
+            return (type != 'x-content/win32-software');
+        });

        let apps = [];
-        contentTypes.forEach(type => {
+        contentTypes.forEach(function(type) {
            let app = Gio.app_info_get_default_for_type(type, false);

            if (app)
@ -161,36 +162,36 @@ var ContentTypeDiscoverer = new Lang.Class({
 var AutorunManager = new Lang.Class({
    Name: 'AutorunManager',

-    _init() {
+    _init: function() {
        this._session = new GnomeSession.SessionManager();
        this._volumeMonitor = Gio.VolumeMonitor.get();

        this._dispatcher = new AutorunDispatcher(this);
    },

-    enable() {
-        this._mountAddedId = this._volumeMonitor.connect('mount-added', this._onMountAdded.bind(this));
-        this._mountRemovedId = this._volumeMonitor.connect('mount-removed', this._onMountRemoved.bind(this));
+    enable: function() {
+        this._mountAddedId = this._volumeMonitor.connect('mount-added', Lang.bind(this, this._onMountAdded));
+        this._mountRemovedId = this._volumeMonitor.connect('mount-removed', Lang.bind(this, this._onMountRemoved));
    },

-    disable() {
+    disable: function() {
        this._volumeMonitor.disconnect(this._mountAddedId);
        this._volumeMonitor.disconnect(this._mountRemovedId);
    },

-    _onMountAdded(monitor, mount) {
+    _onMountAdded: function(monitor, mount) {
        // don't do anything if our session is not the currently
        // active one
        if (!this._session.SessionIsActive)
            return;

-        let discoverer = new ContentTypeDiscoverer((mount, apps, contentTypes) => {
+        let discoverer = new ContentTypeDiscoverer(Lang.bind(this, function(mount, apps, contentTypes) {
            this._dispatcher.addMount(mount, apps, contentTypes);
-        });
+        }));
        discoverer.guessContentTypes(mount);
    },

-    _onMountRemoved(monitor, mount) {
+    _onMountRemoved: function(monitor, mount) {
        this._dispatcher.removeMount(mount);
    }
 });
@ -198,13 +199,13 @@ var AutorunManager = new Lang.Class({
 var AutorunDispatcher = new Lang.Class({
    Name: 'AutorunDispatcher',

-    _init(manager) {
+    _init: function(manager) {
        this._manager = manager;
        this._sources = [];
        this._settings = new Gio.Settings({ schema_id: SETTINGS_SCHEMA });
    },

-    _getAutorunSettingForType(contentType) {
+    _getAutorunSettingForType: function(contentType) {
        let runApp = this._settings.get_strv(SETTING_START_APP);
        if (runApp.indexOf(contentType) != -1)
            return AutorunSetting.RUN;
@ -220,8 +221,11 @@ var AutorunDispatcher = new Lang.Class({
        return AutorunSetting.ASK;
    },

-    _getSourceForMount(mount) {
-        let filtered = this._sources.filter(source => (source.mount == mount));
+    _getSourceForMount: function(mount) {
+        let filtered =
+            this._sources.filter(function (source) {
+                return (source.mount == mount);
+            });

        // we always make sure not to add two sources for the same
        // mount in addMount(), so it's safe to assume filtered.length
@ -232,7 +236,7 @@ var AutorunDispatcher = new Lang.Class({
        return null;
    },

-    _addSource(mount, apps) {
+    _addSource: function(mount, apps) {
        // if we already have a source showing for this 
        // mount, return
        if (this._getSourceForMount(mount))
@ -242,7 +246,7 @@ var AutorunDispatcher = new Lang.Class({
        this._sources.push(new AutorunSource(this._manager, mount, apps));
    },

-    addMount(mount, apps, contentTypes) {
+    addMount: function(mount, apps, contentTypes) {
        // if autorun is disabled globally, return
        if (this._settings.get_boolean(SETTING_DISABLE_AUTORUN))
            return;
@ -280,7 +284,7 @@ var AutorunDispatcher = new Lang.Class({
            this._addSource(mount, apps);
    },

-    removeMount(mount) {
+    removeMount: function(mount) {
        let source = this._getSourceForMount(mount);
        
        // if we aren't tracking this mount, don't do anything
@ -296,7 +300,7 @@ var AutorunSource = new Lang.Class({
    Name: 'AutorunSource',
    Extends: MessageTray.Source,

-    _init(manager, mount, apps) {
+    _init: function(manager, mount, apps) {
        this._manager = manager;
        this.mount = mount;
        this.apps = apps;
@ -310,11 +314,11 @@ var AutorunSource = new Lang.Class({
        this.notify(this._notification);
    },

-    getIcon() {
+    getIcon: function() {
        return this.mount.get_icon();
    },

-    _createPolicy() {
+    _createPolicy: function() {
        return new MessageTray.NotificationApplicationPolicy('org.gnome.Nautilus');
    }
 });
@ -323,27 +327,27 @@ var AutorunNotification = new Lang.Class({
    Name: 'AutorunNotification',
    Extends: MessageTray.Notification,

-    _init(manager, source) {
+    _init: function(manager, source) {
        this.parent(source, source.title);

        this._manager = manager;
        this._mount = source.mount;
    },

-    createBanner() {
+    createBanner: function() {
        let banner = new MessageTray.NotificationBanner(this);

-        this.source.apps.forEach(app => {
+        this.source.apps.forEach(Lang.bind(this, function (app) {
            let actor = this._buttonForApp(app);

            if (actor)
                banner.addButton(actor);
-        });
+        }));

        return banner;
    },

-    _buttonForApp(app) {
+    _buttonForApp: function(app) {
        let box = new St.BoxLayout();
        let icon = new St.Icon({ gicon: app.get_icon(),
                                 style_class: 'hotplug-notification-item-icon' });
@ -362,15 +366,15 @@ var AutorunNotification = new Lang.Class({
                                     button_mask: St.ButtonMask.ONE,
                                     style_class: 'hotplug-notification-item button' });

-        button.connect('clicked', () => {
+        button.connect('clicked', Lang.bind(this, function() {
            startAppForMount(app, this._mount);
            this.destroy();
-        });
+        }));

        return button;
    },

-    activate() {
+    activate: function() {
        this.parent();

        let app = Gio.app_info_get_default_for_type('inode/directory', false);
--- a/js/ui/components/keyring.js
+++ b/js/ui/components/keyring.js
@ -24,13 +24,13 @@ var KeyringDialog = new Lang.Class({
    Name: 'KeyringDialog',
    Extends: ModalDialog.ModalDialog,

-    _init() {
+    _init: function() {
        this.parent({ styleClass: 'prompt-dialog' });

        this.prompt = new Shell.KeyringPrompt();
-        this.prompt.connect('show-password', this._onShowPassword.bind(this));
-        this.prompt.connect('show-confirm', this._onShowConfirm.bind(this));
-        this.prompt.connect('prompt-close', this._onHidePrompt.bind(this));
+        this.prompt.connect('show-password', Lang.bind(this, this._onShowPassword));
+        this.prompt.connect('show-confirm', Lang.bind(this, this._onShowConfirm));
+        this.prompt.connect('prompt-close', Lang.bind(this, this._onHidePrompt));

        let icon = new Gio.ThemedIcon({ name: 'dialog-password-symbolic' });
        this._content = new Dialog.MessageDialogContent({ icon });
@ -55,17 +55,17 @@ var KeyringDialog = new Lang.Class({
        this._controlTable = null;

        this._cancelButton = this.addButton({ label: '',
-                                              action: this._onCancelButton.bind(this),
+                                              action: Lang.bind(this, this._onCancelButton),
                                              key: Clutter.Escape });
        this._continueButton = this.addButton({ label: '',
-                                                action: this._onContinueButton.bind(this),
+                                                action: Lang.bind(this, this._onContinueButton),
                                                default: true });

        this.prompt.bind_property('cancel-label', this._cancelButton, 'label', GObject.BindingFlags.SYNC_CREATE);
        this.prompt.bind_property('continue-label', this._continueButton, 'label', GObject.BindingFlags.SYNC_CREATE);
    },

-    _setWorking(working) {
+    _setWorking: function(working) {
        if (!this._workSpinner)
            return;

@ -84,7 +84,7 @@ var KeyringDialog = new Lang.Class({
                               time: WORK_SPINNER_ANIMATION_TIME,
                               transition: 'linear',
                               onCompleteScope: this,
-                               onComplete() {
+                               onComplete: function() {
                                   if (this._workSpinner)
                                       this._workSpinner.stop();
                               }
@ -92,7 +92,7 @@ var KeyringDialog = new Lang.Class({
        }
    },

-    _buildControlTable() {
+    _buildControlTable: function() {
        let layout = new Clutter.GridLayout({ orientation: Clutter.Orientation.VERTICAL });
        let table = new St.Widget({ style_class: 'keyring-dialog-control-table',
                                    layout_manager: layout });
@ -112,7 +112,7 @@ var KeyringDialog = new Lang.Class({
                                                 x_expand: true });
            this._passwordEntry.clutter_text.set_password_char('\u25cf'); // ● U+25CF BLACK CIRCLE
            ShellEntry.addContextMenu(this._passwordEntry, { isPassword: true });
-            this._passwordEntry.clutter_text.connect('activate', this._onPasswordActivate.bind(this));
+            this._passwordEntry.clutter_text.connect('activate', Lang.bind(this, this._onPasswordActivate));

            let spinnerIcon = Gio.File.new_for_uri('resource:///org/gnome/shell/theme/process-working.svg');
            this._workSpinner = new Animation.AnimatedIcon(spinnerIcon, WORK_SPINNER_ICON_SIZE);
@ -144,7 +144,7 @@ var KeyringDialog = new Lang.Class({
                                                x_expand: true });
            this._confirmEntry.clutter_text.set_password_char('\u25cf'); // ● U+25CF BLACK CIRCLE
            ShellEntry.addContextMenu(this._confirmEntry, { isPassword: true });
-            this._confirmEntry.clutter_text.connect('activate', this._onConfirmActivate.bind(this));
+            this._confirmEntry.clutter_text.connect('activate', Lang.bind(this, this._onConfirmActivate));
            if (rtl) {
                layout.attach(this._confirmEntry, 0, row, 1, 1);
                layout.attach(label, 1, row, 1, 1);
@ -185,7 +185,7 @@ var KeyringDialog = new Lang.Class({
        this._content.messageBox.add(table, { x_fill: true, y_fill: true });
    },

-    _updateSensitivity(sensitive) {
+    _updateSensitivity: function(sensitive) {
        if (this._passwordEntry) {
            this._passwordEntry.reactive = sensitive;
            this._passwordEntry.clutter_text.editable = sensitive;
@ -201,7 +201,7 @@ var KeyringDialog = new Lang.Class({
        this._setWorking(!sensitive);
    },

-    _ensureOpen() {
+    _ensureOpen: function() {
        // NOTE: ModalDialog.open() is safe to call if the dialog is
        // already open - it just returns true without side-effects
        if (this.open())
@ -219,41 +219,41 @@ var KeyringDialog = new Lang.Class({
        return false;
    },

-    _onShowPassword(prompt) {
+    _onShowPassword: function(prompt) {
        this._buildControlTable();
        this._ensureOpen();
        this._updateSensitivity(true);
        this._passwordEntry.grab_key_focus();
    },

-    _onShowConfirm(prompt) {
+    _onShowConfirm: function(prompt) {
        this._buildControlTable();
        this._ensureOpen();
        this._updateSensitivity(true);
        this._continueButton.grab_key_focus();
    },

-    _onHidePrompt(prompt) {
+    _onHidePrompt: function(prompt) {
        this.close();
    },

-    _onPasswordActivate() {
+    _onPasswordActivate: function() {
        if (this.prompt.confirm_visible)
            this._confirmEntry.grab_key_focus();
        else
            this._onContinueButton();
    },

-    _onConfirmActivate() {
+    _onConfirmActivate: function() {
        this._onContinueButton();
    },

-    _onContinueButton() {
+    _onContinueButton: function() {
        this._updateSensitivity(false);
        this.prompt.complete();
    },

-    _onCancelButton() {
+    _onCancelButton: function() {
        this.prompt.cancel();
    },
 });
@ -261,13 +261,15 @@ var KeyringDialog = new Lang.Class({
 var KeyringDummyDialog = new Lang.Class({
    Name: 'KeyringDummyDialog',

-    _init() {
+    _init: function() {
        this.prompt = new Shell.KeyringPrompt();
-        this.prompt.connect('show-password', this._cancelPrompt.bind(this));
-        this.prompt.connect('show-confirm', this._cancelPrompt.bind(this));
+        this.prompt.connect('show-password',
+                            Lang.bind(this, this._cancelPrompt));
+        this.prompt.connect('show-confirm', Lang.bind(this,
+                            this._cancelPrompt));
    },

-    _cancelPrompt() {
+    _cancelPrompt: function() {
        this.prompt.cancel();
    }
 });
@ -275,21 +277,22 @@ var KeyringDummyDialog = new Lang.Class({
 var KeyringPrompter = new Lang.Class({
    Name: 'KeyringPrompter',

-    _init() {
+    _init: function() {
        this._prompter = new Gcr.SystemPrompter();
-        this._prompter.connect('new-prompt', () => {
-            let dialog = this._enabled ? new KeyringDialog()
-                                       : new KeyringDummyDialog();
-            this._currentPrompt = dialog.prompt;
-            return this._currentPrompt;
-        });
+        this._prompter.connect('new-prompt', Lang.bind(this,
+            function() {
+                let dialog = this._enabled ? new KeyringDialog()
+                                           : new KeyringDummyDialog();
+                this._currentPrompt = dialog.prompt;
+                return this._currentPrompt;
+            }));
        this._dbusId = null;
        this._registered = false;
        this._enabled = false;
        this._currentPrompt = null;
    },

-    enable() {
+    enable: function() {
        if (!this._registered) {
            this._prompter.register(Gio.DBus.session);
            this._dbusId = Gio.DBus.session.own_name('org.gnome.keyring.SystemPrompter',
@ -299,7 +302,7 @@ var KeyringPrompter = new Lang.Class({
        this._enabled = true;
    },

-    disable() {
+    disable: function() {
        this._enabled = false;

        if (this._prompter.prompting)
--- a/js/ui/components/networkAgent.js
+++ b/js/ui/components/networkAgent.js
@ -25,7 +25,7 @@ var NetworkSecretDialog = new Lang.Class({
    Name: 'NetworkSecretDialog',
    Extends: ModalDialog.ModalDialog,

-    _init(agent, requestId, connection, settingName, hints, contentOverride) {
+    _init: function(agent, requestId, connection, settingName, hints, contentOverride) {
        this.parent({ styleClass: 'prompt-dialog' });

        this._agent = agent;
@ -82,15 +82,15 @@ var NetworkSecretDialog = new Lang.Class({
                    initialFocusSet = true;
                }

-                secret.entry.clutter_text.connect('activate', this._onOk.bind(this));
-                secret.entry.clutter_text.connect('text-changed', () => {
+                secret.entry.clutter_text.connect('activate', Lang.bind(this, this._onOk));
+                secret.entry.clutter_text.connect('text-changed', Lang.bind(this, function() {
                    secret.value = secret.entry.get_text();
                    if (secret.validate)
                        secret.valid = secret.validate(secret);
                    else
                        secret.valid = secret.value.length > 0;
                    this._updateOkButton();
-                });
+                }));
            } else
                secret.valid = true;

@ -110,12 +110,12 @@ var NetworkSecretDialog = new Lang.Class({
        contentBox.messageBox.add(secretTable);

        this._okButton = { label:  _("Connect"),
-                           action: this._onOk.bind(this),
+                           action: Lang.bind(this, this._onOk),
                           default: true
                         };

        this.setButtons([{ label: _("Cancel"),
-                           action: this.cancel.bind(this),
+                           action: Lang.bind(this, this.cancel),
                           key:    Clutter.KEY_Escape,
                         },
                         this._okButton]);
@ -123,7 +123,7 @@ var NetworkSecretDialog = new Lang.Class({
        this._updateOkButton();
    },

-    _updateOkButton() {
+    _updateOkButton: function() {
        let valid = true;
        for (let i = 0; i < this._content.secrets.length; i++) {
            let secret = this._content.secrets[i];
@ -134,7 +134,7 @@ var NetworkSecretDialog = new Lang.Class({
        this._okButton.button.can_focus = valid;
    },

-    _onOk() {
+    _onOk: function() {
        let valid = true;
        for (let i = 0; i < this._content.secrets.length; i++) {
            let secret = this._content.secrets[i];
@ -150,12 +150,12 @@ var NetworkSecretDialog = new Lang.Class({
        // do nothing if not valid
    },

-    cancel() {
+    cancel: function() {
        this._agent.respond(this._requestId, Shell.NetworkAgentResponse.USER_CANCELED);
        this.close(global.get_current_time());
    },

-    _validateWpaPsk(secret) {
+    _validateWpaPsk: function(secret) {
        let value = secret.value;
        if (value.length == 64) {
            // must be composed of hexadecimal digits only
@ -171,7 +171,7 @@ var NetworkSecretDialog = new Lang.Class({
        return (value.length >= 8 && value.length <= 63);
    },

-    _validateStaticWep(secret) {
+    _validateStaticWep: function(secret) {
        let value = secret.value;
        if (secret.wep_key_type == NM.WepKeyType.KEY) {
            if (value.length == 10 || value.length == 26) {
@ -196,7 +196,7 @@ var NetworkSecretDialog = new Lang.Class({
        return true;
    },

-    _getWirelessSecrets(secrets, wirelessSetting) {
+    _getWirelessSecrets: function(secrets, wirelessSetting) {
        let wirelessSecuritySetting = this._connection.get_setting_wireless_security();
        switch (wirelessSecuritySetting.key_mgmt) {
        // First the easy ones
@ -227,7 +227,7 @@ var NetworkSecretDialog = new Lang.Class({
        }
    },

-    _get8021xSecrets(secrets) {
+    _get8021xSecrets: function(secrets) {
        let ieee8021xSetting = this._connection.get_setting_802_1x();
        let phase2method;

@ -256,7 +256,7 @@ var NetworkSecretDialog = new Lang.Class({
        }
    },

-    _getPPPoESecrets(secrets) {
+    _getPPPoESecrets: function(secrets) {
        let pppoeSetting = this._connection.get_setting_pppoe();
        secrets.push({ label: _("Username: "), key: 'username',
                       value: pppoeSetting.username || '', password: false });
@ -266,7 +266,7 @@ var NetworkSecretDialog = new Lang.Class({
                       value: pppoeSetting.password || '', password: true });
    },

-    _getMobileSecrets(secrets, connectionType) {
+    _getMobileSecrets: function(secrets, connectionType) {
        let setting;
        if (connectionType == 'bluetooth')
            setting = this._connection.get_setting_cdma() || this._connection.get_setting_gsm();
@ -276,7 +276,7 @@ var NetworkSecretDialog = new Lang.Class({
                       value: setting.value || '', password: true });
    },

-    _getContent() {
+    _getContent: function() {
        let connectionSetting = this._connection.get_setting_connection();
        let connectionType = connectionSetting.get_connection_type();
        let wirelessSetting;
@ -332,7 +332,7 @@ var NetworkSecretDialog = new Lang.Class({
 var VPNRequestHandler = new Lang.Class({
    Name: 'VPNRequestHandler',

-    _init(agent, requestId, authHelper, serviceType, connection, hints, flags) {
+    _init: function(agent, requestId, authHelper, serviceType, connection, hints, flags) {
        this._agent = agent;
        this._requestId = requestId;
        this._connection = connection;
@ -384,7 +384,7 @@ var VPNRequestHandler = new Lang.Class({
                this._readStdoutOldStyle();

            this._childWatch = GLib.child_watch_add(GLib.PRIORITY_DEFAULT, pid,
-                                                    this._vpnChildFinished.bind(this));
+                                                    Lang.bind(this, this._vpnChildFinished));

            this._writeConnection();
        } catch(e) {
@ -394,7 +394,7 @@ var VPNRequestHandler = new Lang.Class({
        }
    },

-    cancel(respond) {
+    cancel: function(respond) {
        if (respond)
            this._agent.respond(this._requestId, Shell.NetworkAgentResponse.USER_CANCELED);

@ -410,7 +410,7 @@ var VPNRequestHandler = new Lang.Class({
        this.destroy();
    },

-    destroy() {
+    destroy: function() {
        if (this._destroyed)
            return;

@ -424,7 +424,7 @@ var VPNRequestHandler = new Lang.Class({
        this._destroyed = true;
    },

-    _vpnChildFinished(pid, status, requestObj) {
+    _vpnChildFinished: function(pid, status, requestObj) {
        this._childWatch = 0;
        if (this._newStylePlugin) {
            // For new style plugin, all work is done in the async reading functions
@ -445,7 +445,7 @@ var VPNRequestHandler = new Lang.Class({
        this.destroy();
    },

-    _vpnChildProcessLineOldStyle(line) {
+    _vpnChildProcessLineOldStyle: function(line) {
        if (this._previousLine != undefined) {
            // Two consecutive newlines mean that the child should be closed
            // (the actual newlines are eaten by Gio.DataInputStream)
@ -463,8 +463,8 @@ var VPNRequestHandler = new Lang.Class({
        }
    },

-    _readStdoutOldStyle() {
-        this._dataStdout.read_line_async(GLib.PRIORITY_DEFAULT, null, (stream, result) => {
+    _readStdoutOldStyle: function() {
+        this._dataStdout.read_line_async(GLib.PRIORITY_DEFAULT, null, Lang.bind(this, function(stream, result) {
            let [line, len] = this._dataStdout.read_line_finish_utf8(result);

            if (line == null) {
@ -477,11 +477,11 @@ var VPNRequestHandler = new Lang.Class({

            // try to read more!
            this._readStdoutOldStyle();
-        });
+        }));
    },

-    _readStdoutNewStyle() {
-        this._dataStdout.fill_async(-1, GLib.PRIORITY_DEFAULT, null, (stream, result) => {
+    _readStdoutNewStyle: function() {
+        this._dataStdout.fill_async(-1, GLib.PRIORITY_DEFAULT, null, Lang.bind(this, function(stream, result) {
            let cnt = this._dataStdout.fill_finish(result);

            if (cnt == 0) {
@ -495,10 +495,10 @@ var VPNRequestHandler = new Lang.Class({
            // Try to read more
            this._dataStdout.set_buffer_size(2 * this._dataStdout.get_buffer_size());
            this._readStdoutNewStyle();
-        });
+        }));
    },

-    _showNewStyleDialog() {
+    _showNewStyleDialog: function() {
        let keyfile = new GLib.KeyFile();
        let data;
        let contentOverride;
@ -558,18 +558,18 @@ var VPNRequestHandler = new Lang.Class({
        }
    },

-    _writeConnection() {
+    _writeConnection: function() {
        let vpnSetting = this._connection.get_setting_vpn();

        try {
-            vpnSetting.foreach_data_item((key, value) => {
+            vpnSetting.foreach_data_item(Lang.bind(this, function(key, value) {
                this._stdin.write('DATA_KEY=' + key + '\n', null);
                this._stdin.write('DATA_VAL=' + (value || '') + '\n\n', null);
-            });
-            vpnSetting.foreach_secret((key, value) => {
+            }));
+            vpnSetting.foreach_secret(Lang.bind(this, function(key, value) {
                this._stdin.write('SECRET_KEY=' + key + '\n', null);
                this._stdin.write('SECRET_VAL=' + (value || '') + '\n\n', null);
-            });
+            }));
            this._stdin.write('DONE\n\n', null);
        } catch(e) {
            logError(e, 'internal error while writing connection to helper');
@ -584,7 +584,7 @@ Signals.addSignalMethods(VPNRequestHandler.prototype);
 var NetworkAgent = new Lang.Class({
    Name: 'NetworkAgent',

-    _init() {
+    _init: function() {
        this._native = new Shell.NetworkAgent({ identifier: 'org.gnome.Shell.NetworkAgent',
                                                capabilities: NM.SecretAgentCapabilities.VPN_HINTS,
                                                auto_register: false
@ -602,31 +602,26 @@ var NetworkAgent = new Lang.Class({
            log('Failed to create monitor for VPN plugin dir: ' + e.message);
        }

-        this._native.connect('new-request', this._newRequest.bind(this));
-        this._native.connect('cancel-request', this._cancelRequest.bind(this));
-
-        this._initialized = false;
-        this._native.init_async(GLib.PRIORITY_DEFAULT, null, (o, res) => {
-            try {
-                this._native.init_finish(res);
-                this._initialized = true;
-            } catch(e) {
-                this._native = null;
-                logError(e, 'error initializing the NetworkManager Agent');
-            }
-        });
+        this._native.connect('new-request', Lang.bind(this, this._newRequest));
+        this._native.connect('cancel-request', Lang.bind(this, this._cancelRequest));
+        try {
+            this._native.init(null);
+        } catch(e) {
+            this._native = null;
+            logError(e, 'error initializing the NetworkManager Agent');
+        }
    },

-    enable() {
+    enable: function() {
        if (!this._native)
            return;

        this._native.auto_register = true;
-        if (this._initialized && !this._native.registered)
+        if (!this._native.registered)
            this._native.register_async(null, null);
    },

-    disable() {
+    disable: function() {
        let requestId;

        for (requestId in this._dialogs)
@ -645,11 +640,11 @@ var NetworkAgent = new Lang.Class({
            return;

        this._native.auto_register = false;
-        if (this._initialized && this._native.registered)
+        if (this._native.registered)
            this._native.unregister_async(null, null);
    },

-    _showNotification(requestId, connection, settingName, hints, flags) {
+    _showNotification: function(requestId, connection, settingName, hints, flags) {
        let source = new MessageTray.Source(_("Network Manager"), 'network-transmit-receive');
        source.policy = new MessageTray.NotificationApplicationPolicy('gnome-network-panel');

@ -660,7 +655,7 @@ var NetworkAgent = new Lang.Class({
        switch (connectionType) {
        case '802-11-wireless':
            let wirelessSetting = connection.get_setting_wireless();
-            let ssid = NM.utils_ssid_to_utf8(wirelessSetting.get_ssid().get_data());
+            let ssid = NM.utils_ssid_to_utf8(wirelessSetting.get_ssid());
            title = _("Authentication required by wireless network");
            body = _("Passwords or encryption keys are required to access the wireless network “%s”.").format(ssid);
            break;
@ -693,44 +688,44 @@ var NetworkAgent = new Lang.Class({

        let notification = new MessageTray.Notification(source, title, body);

-        notification.connect('activated', () => {
+        notification.connect('activated', Lang.bind(this, function() {
            notification.answered = true;
            this._handleRequest(requestId, connection, settingName, hints, flags);
-        });
+        }));

        this._notifications[requestId] = notification;
-        notification.connect('destroy', () => {
+        notification.connect('destroy', Lang.bind(this, function() {
            if (!notification.answered)
                this._native.respond(requestId, Shell.NetworkAgentResponse.USER_CANCELED);
            delete this._notifications[requestId];
-        });
+        }));

        Main.messageTray.add(source);
        source.notify(notification);
    },

-    _newRequest(agent, requestId, connection, settingName, hints, flags) {
+    _newRequest:  function(agent, requestId, connection, settingName, hints, flags) {
        if (!(flags & NM.SecretAgentGetSecretsFlags.USER_REQUESTED))
            this._showNotification(requestId, connection, settingName, hints, flags);
        else
            this._handleRequest(requestId, connection, settingName, hints, flags);
    },

-    _handleRequest(requestId, connection, settingName, hints, flags) {
+    _handleRequest: function(requestId, connection, settingName, hints, flags) {
        if (settingName == 'vpn') {
            this._vpnRequest(requestId, connection, hints, flags);
            return;
        }

        let dialog = new NetworkSecretDialog(this._native, requestId, connection, settingName, hints);
-        dialog.connect('destroy', () => {
+        dialog.connect('destroy', Lang.bind(this, function() {
            delete this._dialogs[requestId];
-        });
+        }));
        this._dialogs[requestId] = dialog;
        dialog.open(global.get_current_time());
    },

-    _cancelRequest(agent, requestId) {
+    _cancelRequest: function(agent, requestId) {
        if (this._dialogs[requestId]) {
            this._dialogs[requestId].close(global.get_current_time());
            this._dialogs[requestId].destroy();
@ -741,7 +736,7 @@ var NetworkAgent = new Lang.Class({
        }
    },

-    _vpnRequest(requestId, connection, hints, flags) {
+    _vpnRequest: function(requestId, connection, hints, flags) {
        let vpnSetting = connection.get_setting_vpn();
        let serviceType = vpnSetting.service_type;

@ -757,42 +752,70 @@ var NetworkAgent = new Lang.Class({
        }

        let vpnRequest = new VPNRequestHandler(this._native, requestId, binary, serviceType, connection, hints, flags);
-        vpnRequest.connect('destroy', () => {
+        vpnRequest.connect('destroy', Lang.bind(this, function() {
            delete this._vpnRequests[requestId];
-        });
+        }));
        this._vpnRequests[requestId] = vpnRequest;
    },

-    _buildVPNServiceCache() {
+    _buildVPNServiceCache: function() {
        if (this._vpnCacheBuilt)
            return;

        this._vpnCacheBuilt = true;
        this._vpnBinaries = { };

-        NM.VpnPluginInfo.list_load().forEach(plugin => {
-            let service = plugin.get_service();
-            let fileName = plugin.get_auth_dialog();
-            let supportsHints = plugin.supports_hints();
-            let externalUIMode = false;
+        try {
+            let fileEnum = this._pluginDir.enumerate_children('standard::name', Gio.FileQueryInfoFlags.NONE, null);
+            let info;

-            let prop = plugin.lookup_property('GNOME', 'supports-external-ui-mode');
-            if (prop) {
-                prop = prop.trim().toLowerCase();
-                externalUIMode = ['true', 'yes', 'on', '1'].includes(prop);
+            while ((info = fileEnum.next_file(null))) {
+                let name = info.get_name();
+                if (name.substr(-5) != '.name')
+                    continue;
+
+                try {
+                    let keyfile = new GLib.KeyFile();
+                    keyfile.load_from_file(this._pluginDir.get_child(name).get_path(), GLib.KeyFileFlags.NONE);
+                    let service = keyfile.get_string('VPN Connection', 'service');
+                    let binary = keyfile.get_string('GNOME', 'auth-dialog');
+                    let externalUIMode = false;
+                    let hints = false;
+
+                    try {
+                        externalUIMode = keyfile.get_boolean('GNOME', 'supports-external-ui-mode');
+                    } catch(e) { } // ignore errors if key does not exist
+
+                    try {
+                        hints = keyfile.get_boolean('GNOME', 'supports-hints');
+                    } catch(e) { } // ignore errors if key does not exist
+
+                    let path = binary;
+                    if (!GLib.path_is_absolute(path)) {
+                        path = GLib.build_filenamev([Config.LIBEXECDIR, path]);
+                    }
+
+                    if (GLib.file_test(path, GLib.FileTest.IS_EXECUTABLE)) {
+                        this._vpnBinaries[service] = { fileName: path, externalUIMode: externalUIMode, supportsHints: hints };
+                        try {
+                            let aliases = keyfile.get_string_list('VPN Connection', 'aliases');
+
+                            for (let alias of aliases) {
+                                this._vpnBinaries[alias] = { fileName: path, externalUIMode: externalUIMode, supportsHints: hints };
+                            }
+                        } catch(e) { } // ignore errors if key does not exist
+                    } else {
+                        throw new Error('VPN plugin at %s is not executable'.format(path));
+                    }
+                } catch(e) {
+                    log('Error \'%s\' while processing VPN keyfile \'%s\''.
+                        format(e.message, this._pluginDir.get_child(name).get_path()));
+                    continue;
+                }
            }
-
-            if (GLib.file_test(fileName, GLib.FileTest.IS_EXECUTABLE)) {
-                let binary = { fileName, externalUIMode, supportsHints };
-                this._vpnBinaries[service] = binary;
-
-                plugin.get_aliases().forEach(alias => {
-                    this._vpnBinaries[alias] = binary;
-                });
-            } else {
-                log('VPN plugin at %s is not executable'.format(fileName));
-            }
-        });
+        } catch(e) {
+            logError(e, 'error while enumerating VPN auth helpers');
+        }
    }
 });
 var Component = NetworkAgent;
--- a/js/ui/components/polkitAgent.js
+++ b/js/ui/components/polkitAgent.js
@ -16,7 +16,6 @@ const PolkitAgent = imports.gi.PolkitAgent;
 const Animation = imports.ui.animation;
 const Components = imports.ui.components;
 const Dialog = imports.ui.dialog;
-const Main = imports.ui.main;
 const ModalDialog = imports.ui.modalDialog;
 const ShellEntry = imports.ui.shellEntry;
 const UserWidget = imports.ui.userWidget;
@ -28,11 +27,16 @@ var WORK_SPINNER_ICON_SIZE = 16;
 var WORK_SPINNER_ANIMATION_DELAY = 1.0;
 var WORK_SPINNER_ANIMATION_TIME = 0.3;

+const DialogMode = {
+    AUTH: 0,
+    CONFIRM: 1
+};
+
 var AuthenticationDialog = new Lang.Class({
    Name: 'AuthenticationDialog',
    Extends: ModalDialog.ModalDialog,

-    _init(actionId, body, cookie, userNames) {
+    _init: function(actionId, body, cookie, userNames) {
        this.parent({ styleClass: 'prompt-dialog' });

        this.actionId = actionId;
@ -40,10 +44,6 @@ var AuthenticationDialog = new Lang.Class({
        this.userNames = userNames;
        this._wasDismissed = false;

-        this._sessionUpdatedId = Main.sessionMode.connect('updated', () => {
-            this._group.visible = !Main.sessionMode.isLocked;
-        });
-
        let icon = new Gio.ThemedIcon({ name: 'dialog-password-symbolic' });
        let title = _("Authentication Required");

@ -64,10 +64,6 @@ var AuthenticationDialog = new Lang.Class({

        this._user = AccountsService.UserManager.get_default().get_user(userName);
        let userRealName = this._user.get_real_name()
-        this._userLoadedId = this._user.connect('notify::is_loaded',
-                                                this._onUserChanged.bind(this));
-        this._userChangedId = this._user.connect('changed',
-                                                 this._onUserChanged.bind(this));

        // Special case 'root'
        let userIsRoot = false;
@ -103,17 +99,21 @@ var AuthenticationDialog = new Lang.Class({
                          y_align: St.Align.MIDDLE });
        }

-        this._onUserChanged();
-
        this._passwordBox = new St.BoxLayout({ vertical: false, style_class: 'prompt-dialog-password-box' });
        content.messageBox.add(this._passwordBox);
+
+        // onUserChanged needs to be called after we have the _passwordBox set
+        this._user.connect('notify::is_loaded', Lang.bind(this, this._onUserChanged));
+        this._user.connect('changed', Lang.bind(this, this._onUserChanged));
+        this._onUserChanged();
+
        this._passwordLabel = new St.Label(({ style_class: 'prompt-dialog-password-label' }));
        this._passwordBox.add(this._passwordLabel, { y_fill: false, y_align: St.Align.MIDDLE });
        this._passwordEntry = new St.Entry({ style_class: 'prompt-dialog-password-entry',
                                             text: "",
                                             can_focus: true});
        ShellEntry.addContextMenu(this._passwordEntry, { isPassword: true });
-        this._passwordEntry.clutter_text.connect('activate', this._onEntryActivate.bind(this));
+        this._passwordEntry.clutter_text.connect('activate', Lang.bind(this, this._onEntryActivate));
        this._passwordBox.add(this._passwordEntry,
                              { expand: true });

@ -123,7 +123,6 @@ var AuthenticationDialog = new Lang.Class({

        this._passwordBox.add(this._workSpinner.actor);

-        this.setInitialKeyFocus(this._passwordEntry);
        this._passwordBox.hide();

        this._errorMessageLabel = new St.Label({ style_class: 'prompt-dialog-error-label' });
@ -151,10 +150,10 @@ var AuthenticationDialog = new Lang.Class({
        this._nullMessageLabel.show();

        this._cancelButton = this.addButton({ label: _("Cancel"),
-                                              action: this.cancel.bind(this),
+                                              action: Lang.bind(this, this.cancel),
                                              key: Clutter.Escape });
        this._okButton = this.addButton({ label:  _("Authenticate"),
-                                          action: this._onAuthenticateButtonPressed.bind(this),
+                                          action: Lang.bind(this, this._onAuthenticateButtonPressed),
                                          default: true });

        this._doneEmitted = false;
@ -163,7 +162,7 @@ var AuthenticationDialog = new Lang.Class({
        this._cookie = cookie;
    },

-    _setWorking(working) {
+    _setWorking: function(working) {
        Tweener.removeTweens(this._workSpinner.actor);
        if (working) {
            this._workSpinner.play();
@ -179,7 +178,7 @@ var AuthenticationDialog = new Lang.Class({
                               time: WORK_SPINNER_ANIMATION_TIME,
                               transition: 'linear',
                               onCompleteScope: this,
-                               onComplete() {
+                               onComplete: function() {
                                   if (this._workSpinner)
                                       this._workSpinner.stop();
                               }
@ -187,26 +186,24 @@ var AuthenticationDialog = new Lang.Class({
        }
    },

-    performAuthentication() {
+    _initiateSession: function() {
        this.destroySession();
        this._session = new PolkitAgent.Session({ identity: this._identityToAuth,
                                                  cookie: this._cookie });
-        this._session.connect('completed', this._onSessionCompleted.bind(this));
-        this._session.connect('request', this._onSessionRequest.bind(this));
-        this._session.connect('show-error', this._onSessionShowError.bind(this));
-        this._session.connect('show-info', this._onSessionShowInfo.bind(this));
+        this._session.connect('completed', Lang.bind(this, this._onSessionCompleted));
+        this._session.connect('request', Lang.bind(this, this._onSessionRequest));
+        this._session.connect('show-error', Lang.bind(this, this._onSessionShowError));
+        this._session.connect('show-info', Lang.bind(this, this._onSessionShowInfo));
        this._session.initiate();
    },

-    close(timestamp) {
-        this.parent(timestamp);
-
-        if (this._sessionUpdatedId)
-            Main.sessionMode.disconnect(this._sessionUpdatedId);
-        this._sessionUpdatedId = 0;
+    performAuthentication: function() {
+        if (this._mode == DialogMode.AUTH)
+            this._initiateSession();
+        this._ensureOpen();
    },

-    _ensureOpen() {
+    _ensureOpen: function() {
        // NOTE: ModalDialog.open() is safe to call if the dialog is
        // already open - it just returns true without side-effects
        if (!this.open(global.get_current_time())) {
@ -228,14 +225,14 @@ var AuthenticationDialog = new Lang.Class({
        }
    },

-    _emitDone(dismissed) {
+    _emitDone: function(dismissed) {
        if (!this._doneEmitted) {
            this._doneEmitted = true;
            this.emit('done', dismissed);
        }
    },

-    _updateSensitivity(sensitive) {
+    _updateSensitivity: function(sensitive) {
        this._passwordEntry.reactive = sensitive;
        this._passwordEntry.clutter_text.editable = sensitive;

@ -244,7 +241,7 @@ var AuthenticationDialog = new Lang.Class({
        this._setWorking(!sensitive);
    },

-    _onEntryActivate() {
+    _onEntryActivate: function() {
        let response = this._passwordEntry.get_text();
        this._updateSensitivity(false);
        this._session.response(response);
@ -255,11 +252,14 @@ var AuthenticationDialog = new Lang.Class({
        this._nullMessageLabel.show();
    },

-    _onAuthenticateButtonPressed() {
-        this._onEntryActivate();
+    _onAuthenticateButtonPressed: function() {
+        if (this._mode == DialogMode.CONFIRM)
+            this._initiateSession();
+        else
+            this._onEntryActivate();
    },

-    _onSessionCompleted(session, gainedAuthorization) {
+    _onSessionCompleted: function(session, gainedAuthorization) {
        if (this._completed || this._doneEmitted)
            return;

@ -291,7 +291,7 @@ var AuthenticationDialog = new Lang.Class({
        }
    },

-    _onSessionRequest(session, request, echo_on) {
+    _onSessionRequest: function(session, request, echo_on) {
        // Cheap localization trick
        if (request == 'Password:' || request == 'Password: ')
            this._passwordLabel.set_text(_("Password:"));
@ -310,7 +310,7 @@ var AuthenticationDialog = new Lang.Class({
        this._ensureOpen();
    },

-    _onSessionShowError(session, text) {
+    _onSessionShowError: function(session, text) {
        this._passwordEntry.set_text('');
        this._errorMessageLabel.set_text(text);
        this._errorMessageLabel.show();
@ -319,7 +319,7 @@ var AuthenticationDialog = new Lang.Class({
        this._ensureOpen();
    },

-    _onSessionShowInfo(session, text) {
+    _onSessionShowInfo: function(session, text) {
        this._passwordEntry.set_text('');
        this._infoMessageLabel.set_text(text);
        this._infoMessageLabel.show();
@ -328,7 +328,7 @@ var AuthenticationDialog = new Lang.Class({
        this._ensureOpen();
    },

-    destroySession() {
+    destroySession: function() {
        if (this._session) {
            if (!this._completed)
                this._session.cancel();
@ -337,14 +337,21 @@ var AuthenticationDialog = new Lang.Class({
        }
    },

-    _onUserChanged() {
+    _onUserChanged: function() {
        if (this._user.is_loaded && this._userAvatar) {
            this._userAvatar.update();
            this._userAvatar.actor.show();
        }
+
+        if (this._user.get_password_mode() == AccountsService.UserPasswordMode.NONE) {
+            this._mode = DialogMode.CONFIRM;
+            this._passwordBox.hide();
+        } else {
+            this._mode = DialogMode.AUTH;
+        }
    },

-    cancel() {
+    cancel: function() {
        this._wasDismissed = true;
        this.close(global.get_current_time());
        this._emitDone(true);
@ -355,16 +362,15 @@ Signals.addSignalMethods(AuthenticationDialog.prototype);
 var AuthenticationAgent = new Lang.Class({
    Name: 'AuthenticationAgent',

-    _init() {
+    _init: function() {
        this._currentDialog = null;
        this._handle = null;
        this._native = new Shell.PolkitAuthenticationAgent();
-        this._native.connect('initiate', this._onInitiate.bind(this));
-        this._native.connect('cancel', this._onCancel.bind(this));
-        this._sessionUpdatedId = 0;
+        this._native.connect('initiate', Lang.bind(this, this._onInitiate));
+        this._native.connect('cancel', Lang.bind(this, this._onCancel));
    },

-    enable() {
+    enable: function() {
        try {
            this._native.register();
        } catch(e) {
@ -372,7 +378,7 @@ var AuthenticationAgent = new Lang.Class({
        }
    },

-    disable() {
+    disable: function() {
        try {
            this._native.unregister();
        } catch(e) {
@ -380,18 +386,7 @@ var AuthenticationAgent = new Lang.Class({
        }
    },

-    _onInitiate(nativeAgent, actionId, message, iconName, cookie, userNames) {
-        // Don't pop up a dialog while locked
-        if (Main.sessionMode.isLocked) {
-            this._sessionUpdatedId = Main.sessionMode.connect('updated', () => {
-                Main.sessionMode.disconnect(this._sessionUpdatedId);
-                this._sessionUpdatedId = 0;
-
-                this._onInitiate(nativeAgent, actionId, message, iconName, cookie, userNames);
-            });
-            return;
-        }
-
+    _onInitiate: function(nativeAgent, actionId, message, iconName, cookie, userNames) {
        this._currentDialog = new AuthenticationDialog(actionId, message, cookie, userNames);

        // We actually don't want to open the dialog until we know for
@ -404,27 +399,23 @@ var AuthenticationAgent = new Lang.Class({
        // See https://bugzilla.gnome.org/show_bug.cgi?id=643062 for more
        // discussion.

-        this._currentDialog.connect('done', this._onDialogDone.bind(this));
+        this._currentDialog.connect('done', Lang.bind(this, this._onDialogDone));
        this._currentDialog.performAuthentication();
    },

-    _onCancel(nativeAgent) {
+    _onCancel: function(nativeAgent) {
        this._completeRequest(false);
    },

-    _onDialogDone(dialog, dismissed) {
+    _onDialogDone: function(dialog, dismissed) {
        this._completeRequest(dismissed);
    },

-    _completeRequest(dismissed) {
+    _completeRequest: function(dismissed) {
        this._currentDialog.close();
        this._currentDialog.destroySession();
        this._currentDialog = null;

-        if (this._sessionUpdatedId)
-            Main.sessionMode.disconnect(this._sessionUpdatedId);
-        this._sessionUpdatedId = 0;
-
        this._native.complete(dismissed);
    },
 });
--- a/js/ui/components/telepathyClient.js
+++ b/js/ui/components/telepathyClient.js
@ -47,7 +47,7 @@ var NotificationDirection = {
    RECEIVED: 'chat-received'
 };

-var N_ = s => s;
+var N_ = function(s) { return s; };

 function makeMessageFromTpMessage(tpMessage, direction) {
    let [text, flags] = tpMessage.to_text();
@ -82,7 +82,7 @@ function makeMessageFromTplEvent(event) {
 var TelepathyComponent = new Lang.Class({
    Name: 'TelepathyComponent',

-    _init() {
+    _init: function() {
        this._client = null;

        if (!HAVE_TP)
@ -91,7 +91,7 @@ var TelepathyComponent = new Lang.Class({
        this._client = new TelepathyClient();
    },

-    enable() {
+    enable: function() {
        if (!this._client)
            return;

@ -105,7 +105,7 @@ var TelepathyComponent = new Lang.Class({
            this._client.account_manager.prepare_async(null, null);
    },

-    disable() {
+    disable: function() {
        if (!this._client)
            return;

@ -117,7 +117,7 @@ var TelepathyClient = HAVE_TP ? new Lang.Class({
    Name: 'TelepathyClient',
    Extends: Tp.BaseClient,

-    _init() {
+    _init: function() {
        // channel path -> ChatSource
        this._chatSources = {};
        this._chatState = Tp.ChannelChatState.ACTIVE;
@ -157,10 +157,10 @@ var TelepathyClient = HAVE_TP ? new Lang.Class({
        // Allow other clients (such as Empathy) to pre-empt our channels if
        // needed
        this.set_delegated_channels_callback(
-            this._delegatedChannelsCb.bind(this));
+            Lang.bind(this, this._delegatedChannelsCb));
    },

-    vfunc_observe_channels(account, conn, channels,
+    vfunc_observe_channels: function(account, conn, channels,
                                     dispatchOp, requests, context) {
        let len = channels.length;
        for (let i = 0; i < len; i++) {
@ -181,25 +181,26 @@ var TelepathyClient = HAVE_TP ? new Lang.Class({
        context.accept();
    },

-    _createChatSource(account, conn, channel, contact) {
+    _createChatSource: function(account, conn, channel, contact) {
        if (this._chatSources[channel.get_object_path()])
            return;

        let source = new ChatSource(account, conn, channel, contact, this);

        this._chatSources[channel.get_object_path()] = source;
-        source.connect('destroy', () => {
-            delete this._chatSources[channel.get_object_path()];
-        });
+        source.connect('destroy', Lang.bind(this,
+                       function() {
+                           delete this._chatSources[channel.get_object_path()];
+                       }));
    },

-    vfunc_handle_channels(account, conn, channels, requests,
+    vfunc_handle_channels: function(account, conn, channels, requests,
                                    user_action_time, context) {
        this._handlingChannels(account, conn, channels, true);
        context.accept();
    },

-    _handlingChannels(account, conn, channels, notify) {
+    _handlingChannels: function(account, conn, channels, notify) {
        let len = channels.length;
        for (let i = 0; i < len; i++) {
            let channel = channels[i];
@ -233,7 +234,7 @@ var TelepathyClient = HAVE_TP ? new Lang.Class({
        }
    },

-    vfunc_add_dispatch_operation(account, conn, channels,
+    vfunc_add_dispatch_operation: function(account, conn, channels,
                                           dispatchOp, context) {
        let channel = channels[0];
        let chanType = channel.get_channel_type();
@ -251,7 +252,7 @@ var TelepathyClient = HAVE_TP ? new Lang.Class({
                                        message: 'Unsupported channel type' }));
    },

-    _approveTextChannel(account, conn, channel, dispatchOp, context) {
+    _approveTextChannel: function(account, conn, channel, dispatchOp, context) {
        let [targetHandle, targetHandleType] = channel.get_handle();

        if (targetHandleType != Tp.HandleType.CONTACT) {
@ -261,19 +262,19 @@ var TelepathyClient = HAVE_TP ? new Lang.Class({
        }

        // Approve private text channels right away as we are going to handle it
-        dispatchOp.claim_with_async(this, (dispatchOp, result) => {
+        dispatchOp.claim_with_async(this, Lang.bind(this, function(dispatchOp, result) {
            try {
                dispatchOp.claim_with_finish(result);
                this._handlingChannels(account, conn, [channel], false);
            } catch (err) {
                log('Failed to Claim channel: ' + err);
            }
-        });
+        }));

        context.accept();
    },

-    _delegatedChannelsCb(client, channels) {
+    _delegatedChannelsCb: function(client, channels) {
        // Nothing to do as we don't make a distinction between observed and
        // handled channels.
    },
@ -283,7 +284,7 @@ var ChatSource = new Lang.Class({
    Name: 'ChatSource',
    Extends: MessageTray.Source,

-    _init(account, conn, channel, contact, client) {
+    _init: function(account, conn, channel, contact, client) {
        this._account = account;
        this._contact = contact;
        this._client = client;
@ -295,19 +296,19 @@ var ChatSource = new Lang.Class({

        this._conn = conn;
        this._channel = channel;
-        this._closedId = this._channel.connect('invalidated', this._channelClosed.bind(this));
+        this._closedId = this._channel.connect('invalidated', Lang.bind(this, this._channelClosed));

        this._notifyTimeoutId = 0;

        this._presence = contact.get_presence_type();

-        this._sentId = this._channel.connect('message-sent', this._messageSent.bind(this));
-        this._receivedId = this._channel.connect('message-received', this._messageReceived.bind(this));
-        this._pendingId = this._channel.connect('pending-message-removed', this._pendingRemoved.bind(this));
+        this._sentId = this._channel.connect('message-sent', Lang.bind(this, this._messageSent));
+        this._receivedId = this._channel.connect('message-received', Lang.bind(this, this._messageReceived));
+        this._pendingId = this._channel.connect('pending-message-removed', Lang.bind(this, this._pendingRemoved));

-        this._notifyAliasId = this._contact.connect('notify::alias', this._updateAlias.bind(this));
-        this._notifyAvatarId = this._contact.connect('notify::avatar-file', this._updateAvatarIcon.bind(this));
-        this._presenceChangedId = this._contact.connect('presence-changed', this._presenceChanged.bind(this));
+        this._notifyAliasId = this._contact.connect('notify::alias', Lang.bind(this, this._updateAlias));
+        this._notifyAvatarId = this._contact.connect('notify::avatar-file', Lang.bind(this, this._updateAvatarIcon));
+        this._presenceChangedId = this._contact.connect('presence-changed', Lang.bind(this, this._presenceChanged));

        // Add ourselves as a source.
        Main.messageTray.add(this);
@ -315,42 +316,45 @@ var ChatSource = new Lang.Class({
        this._getLogMessages();
    },

-    _ensureNotification() {
+    _ensureNotification: function() {
        if (this._notification)
            return;

        this._notification = new ChatNotification(this);
-        this._notification.connect('activated', this.open.bind(this));
-        this._notification.connect('updated', () => {
-            if (this._banner && this._banner.expanded)
-                this._ackMessages();
-        });
-        this._notification.connect('destroy', () => {
-            this._notification = null;
-        });
+        this._notification.connect('activated', Lang.bind(this, this.open));
+        this._notification.connect('updated', Lang.bind(this,
+            function() {
+                if (this._banner && this._banner.expanded)
+                    this._ackMessages();
+            }));
+        this._notification.connect('destroy', Lang.bind(this,
+            function() {
+                this._notification = null;
+            }));
        this.pushNotification(this._notification);
    },

-    _createPolicy() {
+    _createPolicy: function() {
        if (this._account.protocol_name == 'irc')
            return new MessageTray.NotificationApplicationPolicy('org.gnome.Polari');
        return new MessageTray.NotificationApplicationPolicy('empathy');
    },

-    createBanner() {
+    createBanner: function() {
        this._banner = new ChatNotificationBanner(this._notification);

        // We ack messages when the user expands the new notification
-        let id = this._banner.connect('expanded', this._ackMessages.bind(this));
-        this._banner.actor.connect('destroy', () => {
-            this._banner.disconnect(id);
-            this._banner = null;
-        });
+        let id = this._banner.connect('expanded', Lang.bind(this, this._ackMessages));
+        this._banner.actor.connect('destroy', Lang.bind(this,
+            function() {
+                this._banner.disconnect(id);
+                this._banner = null;
+            }));

        return this._banner;
    },

-    _updateAlias() {
+    _updateAlias: function() {
        let oldAlias = this.title;
        let newAlias = this._contact.get_alias();

@ -362,7 +366,7 @@ var ChatSource = new Lang.Class({
            this._notification.appendAliasChange(oldAlias, newAlias);
    },

-    getIcon() {
+    getIcon: function() {
        let file = this._contact.get_avatar_file();
        if (file) {
            return new Gio.FileIcon({ file: file });
@ -371,7 +375,7 @@ var ChatSource = new Lang.Class({
        }
    },

-    getSecondaryIcon() {
+    getSecondaryIcon: function() {
        let iconName;
        let presenceType = this._contact.get_presence_type();

@ -400,7 +404,7 @@ var ChatSource = new Lang.Class({
       return new Gio.ThemedIcon({ name: iconName });
    },

-    _updateAvatarIcon() {
+    _updateAvatarIcon: function() {
        this.iconUpdated();
        if (this._notifiction)
            this._notification.update(this._notification.title,
@ -408,7 +412,7 @@ var ChatSource = new Lang.Class({
                                      { gicon: this.getIcon() });
    },

-    open() {
+    open: function() {
        Main.overview.hide();
        Main.panel.closeCalendar();

@ -433,16 +437,16 @@ var ChatSource = new Lang.Class({
        }
    },

-    _getLogMessages() {
+    _getLogMessages: function() {
        let logManager = Tpl.LogManager.dup_singleton();
        let entity = Tpl.Entity.new_from_tp_contact(this._contact, Tpl.EntityType.CONTACT);

        logManager.get_filtered_events_async(this._account, entity,
                                             Tpl.EventTypeMask.TEXT, SCROLLBACK_HISTORY_LINES,
-                                             null, this._displayPendingMessages.bind(this));
+                                             null, Lang.bind(this, this._displayPendingMessages));
    },

-    _displayPendingMessages(logManager, result) {
+    _displayPendingMessages: function(logManager, result) {
        let [success, events] = logManager.get_filtered_events_finish(result);

        let logMessages = events.map(makeMessageFromTplEvent);
@ -495,12 +499,12 @@ var ChatSource = new Lang.Class({
            this.notify();
    },

-    destroy(reason) {
+    destroy: function(reason) {
        if (this._client.is_handling_channel(this._channel)) {
            this._ackMessages();
            // The chat box has been destroyed so it can't
            // handle the channel any more.
-            this._channel.close_async((channel, result) => {
+            this._channel.close_async(function(channel, result) {
                channel.close_finish(result);
            });
        } else {
@ -530,7 +534,7 @@ var ChatSource = new Lang.Class({
        this.parent(reason);
    },

-    _channelClosed() {
+    _channelClosed: function() {
        this.destroy(MessageTray.NotificationDestroyedReason.SOURCE_CLOSED);
    },

@ -547,7 +551,7 @@ var ChatSource = new Lang.Class({
        return this.count > 0;
    },

-    _messageReceived(channel, message) {
+    _messageReceived: function(channel, message) {
        if (message.get_message_type() == Tp.ChannelTextMessageType.DELIVERY_REPORT)
            return;

@ -563,11 +567,11 @@ var ChatSource = new Lang.Class({
        if (this._notifyTimeoutId != 0)
            Mainloop.source_remove(this._notifyTimeoutId);
        this._notifyTimeoutId = Mainloop.timeout_add(500,
-            this._notifyTimeout.bind(this));
+            Lang.bind(this, this._notifyTimeout));
        GLib.Source.set_name_by_id(this._notifyTimeoutId, '[gnome-shell] this._notifyTimeout');
    },

-    _notifyTimeout() {
+    _notifyTimeout: function() {
        if (this._pendingMessages.length != 0)
            this.notify();

@ -578,17 +582,17 @@ var ChatSource = new Lang.Class({

    // This is called for both messages we send from
    // our client and other clients as well.
-    _messageSent(channel, message, flags, token) {
+    _messageSent: function(channel, message, flags, token) {
        this._ensureNotification();
        message = makeMessageFromTpMessage(message, NotificationDirection.SENT);
        this._notification.appendMessage(message);
    },

-    notify() {
+    notify: function() {
        this.parent(this._notification);
    },

-    respond(text) {
+    respond: function(text) {
        let type;
        if (text.slice(0, 4) == '/me ') {
            type = Tp.ChannelTextMessageType.ACTION;
@ -598,12 +602,12 @@ var ChatSource = new Lang.Class({
        }

        let msg = Tp.ClientMessage.new_text(type, text);
-        this._channel.send_message_async(msg, 0, (src, result) => {
+        this._channel.send_message_async(msg, 0, Lang.bind(this, function (src, result) {
            this._channel.send_message_finish(result); 
-        });
+        }));
    },

-    setChatState(state) {
+    setChatState: function(state) {
        // We don't want to send COMPOSING every time a letter is typed into
        // the entry. We send the state only when it changes. Telepathy/Empathy
        // might change it behind our back if the user is using both
@ -616,14 +620,14 @@ var ChatSource = new Lang.Class({
        }
    },

-    _presenceChanged(contact, presence, status, message) {
+    _presenceChanged: function (contact, presence, status, message) {
        if (this._notification)
            this._notification.update(this._notification.title,
                                      this._notification.bannerBodyText,
                                      { secondaryGIcon: this.getSecondaryIcon() });
    },

-    _pendingRemoved(channel, message) {
+    _pendingRemoved: function(channel, message) {
        let idx = this._pendingMessages.indexOf(message);

        if (idx >= 0) {
@ -636,7 +640,7 @@ var ChatSource = new Lang.Class({
            this._banner.hide();
    },

-    _ackMessages() {
+    _ackMessages: function() {
        // Don't clear our messages here, tp-glib will send a
        // 'pending-message-removed' for each one.
        this._channel.ack_all_pending_messages_async(null);
@ -647,7 +651,7 @@ var ChatNotification = new Lang.Class({
    Name: 'ChatNotification',
    Extends: MessageTray.Notification,

-    _init(source) {
+    _init: function(source) {
        this.parent(source, source.title, null,
                    { secondaryGIcon: source.getSecondaryIcon() });
        this.setUrgency(MessageTray.Urgency.HIGH);
@ -657,7 +661,7 @@ var ChatNotification = new Lang.Class({
        this._timestampTimeoutId = 0;
    },

-    destroy(reason) {
+    destroy: function(reason) {
        if (this._timestampTimeoutId)
            Mainloop.source_remove(this._timestampTimeoutId);
        this._timestampTimeoutId = 0;
@ -677,7 +681,7 @@ var ChatNotification = new Lang.Class({
     *   will be added, regardless of the difference since the
     *   last timestamp
     */
-    appendMessage(message, noTimestamp) {
+    appendMessage: function(message, noTimestamp) {
        let messageBody = GLib.markup_escape_text(message.text, -1);
        let styles = [message.direction];

@ -702,7 +706,7 @@ var ChatNotification = new Lang.Class({
                       noTimestamp: noTimestamp });
    },

-    _filterMessages() {
+    _filterMessages: function() {
        if (this.messages.length < 1)
            return;

@ -718,7 +722,7 @@ var ChatNotification = new Lang.Class({
        let maxLength = (lastMessageTime < currentTime - SCROLLBACK_RECENT_TIME) ?
            SCROLLBACK_IDLE_LENGTH : SCROLLBACK_RECENT_LENGTH;

-        let filteredHistory = this.messages.filter(item => item.realMessage);
+        let filteredHistory = this.messages.filter(function(item) { return item.realMessage });
        if (filteredHistory.length > maxLength) {
            let lastMessageToKeep = filteredHistory[maxLength];
            let expired = this.messages.splice(this.messages.indexOf(lastMessageToKeep));
@ -737,7 +741,7 @@ var ChatNotification = new Lang.Class({
     *  timestamp: The timestamp of the message.
     *  noTimestamp: suppress timestamp signal?
     */
-    _append(props) {
+    _append: function(props) {
        let currentTime = (Date.now() / 1000);
        props = Params.parse(props, { body: null,
                                      group: null,
@ -767,7 +771,7 @@ var ChatNotification = new Lang.Class({
                // from the timestamp of the message.
                this._timestampTimeoutId = Mainloop.timeout_add_seconds(
                    SCROLLBACK_IMMEDIATE_TIME - (currentTime - timestamp),
-                    this.appendTimestamp.bind(this));
+                    Lang.bind(this, this.appendTimestamp));
                GLib.Source.set_name_by_id(this._timestampTimeoutId, '[gnome-shell] this.appendTimestamp');
            }
        }
@ -775,7 +779,7 @@ var ChatNotification = new Lang.Class({
        this._filterMessages();
    },

-    appendTimestamp() {
+    appendTimestamp: function() {
        this._timestampTimeoutId = 0;

        this.messages[0].showTimestamp = true;
@ -786,7 +790,7 @@ var ChatNotification = new Lang.Class({
        return GLib.SOURCE_REMOVE;
    },

-    appendAliasChange(oldAlias, newAlias) {
+    appendAliasChange: function(oldAlias, newAlias) {
        oldAlias = GLib.markup_escape_text(oldAlias, -1);
        newAlias = GLib.markup_escape_text(newAlias, -1);

@ -806,7 +810,7 @@ var ChatLineBox = new Lang.Class({
    Name: 'ChatLineBox',
    Extends: St.BoxLayout,

-    vfunc_get_preferred_height(forWidth) {
+    vfunc_get_preferred_height: function(forWidth) {
        let [, natHeight] = this.parent(forWidth);
        return [natHeight, natHeight];
    }
@ -816,23 +820,23 @@ var ChatNotificationBanner = new Lang.Class({
    Name: 'ChatNotificationBanner',
    Extends: MessageTray.NotificationBanner,

-    _init(notification) {
+    _init: function(notification) {
        this.parent(notification);

        this._responseEntry = new St.Entry({ style_class: 'chat-response',
                                             x_expand: true,
                                             can_focus: true });
-        this._responseEntry.clutter_text.connect('activate', this._onEntryActivated.bind(this));
-        this._responseEntry.clutter_text.connect('text-changed', this._onEntryChanged.bind(this));
+        this._responseEntry.clutter_text.connect('activate', Lang.bind(this, this._onEntryActivated));
+        this._responseEntry.clutter_text.connect('text-changed', Lang.bind(this, this._onEntryChanged));
        this.setActionArea(this._responseEntry);

-        this._responseEntry.clutter_text.connect('key-focus-in', () => {
+        this._responseEntry.clutter_text.connect('key-focus-in', Lang.bind(this, function() {
            this.focused = true;
-        });
-        this._responseEntry.clutter_text.connect('key-focus-out', () => {
+        }));
+        this._responseEntry.clutter_text.connect('key-focus-out', Lang.bind(this, function() {
            this.focused = false;
            this.emit('unfocused');
-        });
+        }));

        this._scrollArea = new St.ScrollView({ style_class: 'chat-scrollview vfade',
                                               vscrollbar_policy: Gtk.PolicyType.AUTOMATIC,
@ -851,11 +855,11 @@ var ChatNotificationBanner = new Lang.Class({
        // force a scroll to the bottom if things change while we were at the
        // bottom
        this._oldMaxScrollValue = this._scrollArea.vscroll.adjustment.value;
-        this._scrollArea.vscroll.adjustment.connect('changed', adjustment => {
+        this._scrollArea.vscroll.adjustment.connect('changed', Lang.bind(this, function(adjustment) {
            if (adjustment.value == this._oldMaxScrollValue)
                this.scrollTo(St.Side.BOTTOM);
            this._oldMaxScrollValue = Math.max(adjustment.lower, adjustment.upper - adjustment.page_size);
-        });
+        }));

        this._inputHistory = new History.HistoryManager({ entry: this._responseEntry.clutter_text });

@ -864,32 +868,32 @@ var ChatNotificationBanner = new Lang.Class({
        this._messageActors = new Map();

        this._messageAddedId = this.notification.connect('message-added',
-            (n, message) => {
+            Lang.bind(this, function(n, message) {
                this._addMessage(message);
-            });
+            }));
        this._messageRemovedId = this.notification.connect('message-removed',
-            (n, message) => {
+            Lang.bind(this, function(n, message) {
                let actor = this._messageActors.get(message);
                if (this._messageActors.delete(message))
                    actor.destroy();
-            });
+            }));
        this._timestampChangedId = this.notification.connect('timestamp-changed',
-            (n, message) => {
+            Lang.bind(this, function(n, message) {
                this._updateTimestamp(message);
-            });
+            }));

        for (let i = this.notification.messages.length - 1; i >= 0; i--)
            this._addMessage(this.notification.messages[i]);
    },

-    _onDestroy() {
+    _onDestroy: function() {
        this.parent();
        this.notification.disconnect(this._messageAddedId);
        this.notification.disconnect(this._messageRemovedId);
        this.notification.disconnect(this._timestampChangedId);
    },

-    scrollTo(side) {
+    scrollTo: function(side) {
        let adjustment = this._scrollArea.vscroll.adjustment;
        if (side == St.Side.TOP)
            adjustment.value = adjustment.lower;
@ -897,11 +901,11 @@ var ChatNotificationBanner = new Lang.Class({
            adjustment.value = adjustment.upper;
    },

-    hide() {
+    hide: function() {
        this.emit('done-displaying');
    },

-    _addMessage(message) {
+    _addMessage: function(message) {
        let highlighter = new MessageList.URLHighlighter(message.body, true, true);
        let body = highlighter.actor;

@ -923,7 +927,7 @@ var ChatNotificationBanner = new Lang.Class({
        this._updateTimestamp(message);
    },

-    _updateTimestamp(message) {
+    _updateTimestamp: function(message) {
        let actor = this._messageActors.get(message);
        if (!actor)
            return;
@ -944,7 +948,7 @@ var ChatNotificationBanner = new Lang.Class({
        }
    },

-    _onEntryActivated() {
+    _onEntryActivated: function() {
        let text = this._responseEntry.get_text();
        if (text == '')
            return;
@ -957,7 +961,7 @@ var ChatNotificationBanner = new Lang.Class({
        this.notification.source.respond(text);
    },

-    _composingStopTimeout() {
+    _composingStopTimeout: function() {
        this._composingTimeoutId = 0;

        this.notification.source.setChatState(Tp.ChannelChatState.PAUSED);
@ -965,7 +969,7 @@ var ChatNotificationBanner = new Lang.Class({
        return GLib.SOURCE_REMOVE;
    },

-    _onEntryChanged() {
+    _onEntryChanged: function() {
        let text = this._responseEntry.get_text();

        // If we're typing, we want to send COMPOSING.
@ -984,7 +988,7 @@ var ChatNotificationBanner = new Lang.Class({

            this._composingTimeoutId = Mainloop.timeout_add_seconds(
                COMPOSING_STOP_TIMEOUT,
-                this._composingStopTimeout.bind(this));
+                Lang.bind(this, this._composingStopTimeout));
            GLib.Source.set_name_by_id(this._composingTimeoutId, '[gnome-shell] this._composingStopTimeout');
        } else {
            this.notification.source.setChatState(Tp.ChannelChatState.ACTIVE);
--- a/js/ui/ctrlAltTab.js
+++ b/js/ui/ctrlAltTab.js
@ -24,14 +24,14 @@ var SortGroup = {
 var CtrlAltTabManager = new Lang.Class({
    Name: 'CtrlAltTabManager',

-    _init() {
+    _init: function() {
        this._items = [];
        this.addGroup(global.window_group, _("Windows"),
                      'focus-windows-symbolic', { sortGroup: SortGroup.TOP,
-                                                  focusCallback: this._focusWindows.bind(this) });
+                                                  focusCallback: Lang.bind(this, this._focusWindows) });
    },

-    addGroup(root, name, icon, params) {
+    addGroup: function(root, name, icon, params) {
        let item = Params.parse(params, { sortGroup: SortGroup.MIDDLE,
                                          proxy: root,
                                          focusCallback: null });
@ -41,12 +41,12 @@ var CtrlAltTabManager = new Lang.Class({
        item.iconName = icon;

        this._items.push(item);
-        root.connect('destroy', () => { this.removeGroup(root); });
+        root.connect('destroy', Lang.bind(this, function() { this.removeGroup(root); }));
        if (root instanceof St.Widget)
            global.focus_manager.add_group(root);
    },

-    removeGroup(root) {
+    removeGroup: function(root) {
        if (root instanceof St.Widget)
            global.focus_manager.remove_group(root);
        for (let i = 0; i < this._items.length; i++) {
@ -57,7 +57,7 @@ var CtrlAltTabManager = new Lang.Class({
        }
    },

-    focusGroup(item, timestamp) {
+    focusGroup: function(item, timestamp) {
        if (item.focusCallback)
            item.focusCallback(timestamp);
        else
@ -68,7 +68,7 @@ var CtrlAltTabManager = new Lang.Class({
    // and everything else in between, sorted by X coordinate, so that
    // they will have the same left-to-right ordering in the
    // Ctrl-Alt-Tab dialog as they do onscreen.
-    _sortItems(a, b) {
+    _sortItems: function(a, b) {
        if (a.sortGroup != b.sortGroup)
            return a.sortGroup - b.sortGroup;

@ -79,17 +79,15 @@ var CtrlAltTabManager = new Lang.Class({
        return ax - bx;
    },

-    popup(backward, binding, mask) {
+    popup: function(backward, binding, mask) {
        // Start with the set of focus groups that are currently mapped
-        let items = this._items.filter(item => item.proxy.mapped);
+        let items = this._items.filter(function (item) { return item.proxy.mapped; });

        // And add the windows metacity would show in its Ctrl-Alt-Tab list
        if (Main.sessionMode.hasWindows && !Main.overview.visible) {
-            let display = global.display;
-            let workspaceManager = global.workspace_manager;
-            let activeWorkspace = workspaceManager.get_active_workspace();
-            let windows = display.get_tab_list(Meta.TabList.DOCKS,
-                                               activeWorkspace);
+            let screen = global.screen;
+            let display = screen.get_display();
+            let windows = display.get_tab_list(Meta.TabList.DOCKS, screen.get_active_workspace ());
            let windowTracker = Shell.WindowTracker.get_default();
            let textureCache = St.TextureCache.get_default();
            for (let i = 0; i < windows.length; i++) {
@ -107,9 +105,10 @@ var CtrlAltTabManager = new Lang.Class({

                items.push({ name: windows[i].title,
                             proxy: windows[i].get_compositor_private(),
-                             focusCallback: function(timestamp) {
-                                 Main.activateWindow(this, timestamp);
-                             }.bind(windows[i]),
+                             focusCallback: Lang.bind(windows[i],
+                                 function(timestamp) {
+                                     Main.activateWindow(this, timestamp);
+                                 }),
                             iconActor: icon,
                             iconName: iconName,
                             sortGroup: SortGroup.MIDDLE });
@ -119,21 +118,21 @@ var CtrlAltTabManager = new Lang.Class({
        if (!items.length)
            return;

-        items.sort(this._sortItems.bind(this));
+        items.sort(Lang.bind(this, this._sortItems));

        if (!this._popup) {
            this._popup = new CtrlAltTabPopup(items);
            this._popup.show(backward, binding, mask);

            this._popup.actor.connect('destroy',
-                                      () => {
+                                      Lang.bind(this, function() {
                                          this._popup = null;
-                                      });
+                                      }));
        }
    },

-    _focusWindows(timestamp) {
-        global.display.focus_default_window(timestamp);
+    _focusWindows: function(timestamp) {
+        global.screen.focus_default_window(timestamp);
    }
 });

@ -141,13 +140,13 @@ var CtrlAltTabPopup = new Lang.Class({
    Name: 'CtrlAltTabPopup',
    Extends: SwitcherPopup.SwitcherPopup,

-    _init(items) {
+    _init: function(items) {
        this.parent(items);

        this._switcherList = new CtrlAltTabSwitcher(this._items);
    },

-    _keyPressHandler(keysym, action) {
+    _keyPressHandler: function(keysym, action) {
        if (action == Meta.KeyBindingAction.SWITCH_PANELS)
            this._select(this._next());
        else if (action == Meta.KeyBindingAction.SWITCH_PANELS_BACKWARD)
@ -162,7 +161,7 @@ var CtrlAltTabPopup = new Lang.Class({
        return Clutter.EVENT_STOP;
    },

-    _finish(time) {
+    _finish : function(time) {
        this.parent(time);
        Main.ctrlAltTabManager.focusGroup(this._items[this._selectedIndex], time);
    },
@ -172,14 +171,14 @@ var CtrlAltTabSwitcher = new Lang.Class({
    Name: 'CtrlAltTabSwitcher',
    Extends: SwitcherPopup.SwitcherList,

-    _init(items) {
+    _init : function(items) {
        this.parent(true);

        for (let i = 0; i < items.length; i++)
            this._addIcon(items[i]);
    },

-    _addIcon(item) {
+    _addIcon : function(item) {
        let box = new St.BoxLayout({ style_class: 'alt-tab-app',
                                     vertical: true });

--- a/js/ui/dash.js
+++ b/js/ui/dash.js
@ -37,7 +37,7 @@ var DashItemContainer = new Lang.Class({
    Name: 'DashItemContainer',
    Extends: St.Widget,

-    _init() {
+    _init: function() {
        this.parent({ style_class: 'dash-item-container' });

        this._labelText = "";
@ -56,7 +56,7 @@ var DashItemContainer = new Lang.Class({
        });
    },

-    vfunc_allocate(box, flags) {
+    vfunc_allocate: function(box, flags) {
        this.set_allocation(box, flags);

        if (this.child == null)
@ -80,7 +80,7 @@ var DashItemContainer = new Lang.Class({
        this.child.allocate(childBox, flags);
    },

-    vfunc_get_preferred_height(forWidth) {
+    vfunc_get_preferred_height: function(forWidth) {
        let themeNode = this.get_theme_node();

        if (this.child == null)
@ -92,7 +92,7 @@ var DashItemContainer = new Lang.Class({
                                                 natHeight * this.child.scale_y);
    },

-    vfunc_get_preferred_width(forHeight) {
+    vfunc_get_preferred_width: function(forHeight) {
        let themeNode = this.get_theme_node();

        if (this.child == null)
@ -104,7 +104,7 @@ var DashItemContainer = new Lang.Class({
                                                natWidth * this.child.scale_y);
    },

-    showLabel() {
+    showLabel: function() {
        if (!this._labelText)
            return;

@ -138,23 +138,23 @@ var DashItemContainer = new Lang.Class({
                         });
    },

-    setLabelText(text) {
+    setLabelText: function(text) {
        this._labelText = text;
        this.child.accessible_name = text;
    },

-    hideLabel() {
+    hideLabel: function () {
        Tweener.addTween(this.label,
                         { opacity: 0,
                           time: DASH_ITEM_LABEL_HIDE_TIME,
                           transition: 'easeOutQuad',
-                           onComplete: () => {
+                           onComplete: Lang.bind(this, function() {
                               this.label.hide();
-                           }
+                           })
                         });
    },

-    setChild(actor) {
+    setChild: function(actor) {
        if (this.child == actor)
            return;

@ -168,7 +168,7 @@ var DashItemContainer = new Lang.Class({
        this.child.set_opacity(this._childOpacity);
    },

-    show(animate) {
+    show: function(animate) {
        if (this.child == null)
            return;

@ -181,7 +181,7 @@ var DashItemContainer = new Lang.Class({
                         });
    },

-    animateOutAndDestroy() {
+    animateOutAndDestroy: function() {
        this.label.hide();

        if (this.child == null) {
@ -195,9 +195,9 @@ var DashItemContainer = new Lang.Class({
                           childOpacity: 0,
                           time: DASH_ANIMATION_TIME,
                           transition: 'easeOutQuad',
-                           onComplete: () => {
+                           onComplete: Lang.bind(this, function() {
                               this.destroy();
-                           }
+                           })
                         });
    },

@ -235,7 +235,7 @@ var ShowAppsIcon = new Lang.Class({
    Name: 'ShowAppsIcon',
    Extends: DashItemContainer,

-    _init() {
+    _init: function() {
        this.parent();

        this.toggleButton = new St.Button({ style_class: 'show-apps',
@ -246,7 +246,7 @@ var ShowAppsIcon = new Lang.Class({
        this.icon = new IconGrid.BaseIcon(_("Show Applications"),
                                           { setSizeManually: true,
                                             showLabel: false,
-                                             createIcon: this._createIcon.bind(this) });
+                                             createIcon: Lang.bind(this, this._createIcon) });
        this.toggleButton.add_actor(this.icon.actor);
        this.toggleButton._delegate = this;

@ -254,7 +254,7 @@ var ShowAppsIcon = new Lang.Class({
        this.setDragApp(null);
    },

-    _createIcon(size) {
+    _createIcon: function(size) {
        this._iconActor = new St.Icon({ icon_name: 'view-app-grid-symbolic',
                                        icon_size: size,
                                        style_class: 'show-apps-icon',
@ -262,7 +262,7 @@ var ShowAppsIcon = new Lang.Class({
        return this._iconActor;
    },

-    _canRemoveApp(app) {
+    _canRemoveApp: function(app) {
        if (app == null)
            return false;

@ -274,7 +274,7 @@ var ShowAppsIcon = new Lang.Class({
        return isFavorite;
    },

-    setDragApp(app) {
+    setDragApp: function(app) {
        let canRemove = this._canRemoveApp(app);

        this.toggleButton.set_hover(canRemove);
@ -287,24 +287,25 @@ var ShowAppsIcon = new Lang.Class({
            this.setLabelText(_("Show Applications"));
    },

-    handleDragOver(source, actor, x, y, time) {
+    handleDragOver: function(source, actor, x, y, time) {
        if (!this._canRemoveApp(getAppFromSource(source)))
            return DND.DragMotionResult.NO_DROP;

        return DND.DragMotionResult.MOVE_DROP;
    },

-    acceptDrop(source, actor, x, y, time) {
+    acceptDrop: function(source, actor, x, y, time) {
        let app = getAppFromSource(source);
        if (!this._canRemoveApp(app))
            return false;

        let id = app.get_id();

-        Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
-            AppFavorites.getAppFavorites().removeFavorite(id);
-            return false;
-        });
+        Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this,
+            function () {
+                AppFavorites.getAppFavorites().removeFavorite(id);
+                return false;
+            }));

        return true;
    }
@ -314,7 +315,7 @@ var DragPlaceholderItem = new Lang.Class({
    Name: 'DragPlaceholderItem',
    Extends: DashItemContainer,

-    _init() {
+    _init: function() {
        this.parent();
        this.setChild(new St.Bin({ style_class: 'placeholder' }));
    }
@ -324,7 +325,7 @@ var EmptyDropTargetItem = new Lang.Class({
    Name: 'EmptyDropTargetItem',
    Extends: DashItemContainer,

-    _init() {
+    _init: function() {
        this.parent();
        this.setChild(new St.Bin({ style_class: 'empty-dash-drop-target' }));
    }
@ -334,14 +335,14 @@ var DashActor = new Lang.Class({
    Name: 'DashActor',
    Extends: St.Widget,

-    _init() {
+    _init: function() {
        let layout = new Clutter.BoxLayout({ orientation: Clutter.Orientation.VERTICAL });
        this.parent({ name: 'dash',
                      layout_manager: layout,
                      clip_to_allocation: true });
    },

-    vfunc_allocate(box, flags) {
+    vfunc_allocate: function(box, flags) {
        let contentBox = this.get_theme_node().get_content_box(box);
        let availWidth = contentBox.x2 - contentBox.x1;

@ -362,7 +363,7 @@ var DashActor = new Lang.Class({
        showAppsButton.allocate(childBox, flags);
    },

-    vfunc_get_preferred_height(forWidth) {
+    vfunc_get_preferred_height: function(forWidth) {
        // We want to request the natural height of all our children
        // as our natural height, so we chain up to StWidget (which
        // then calls BoxLayout), but we only request the showApps
@ -385,7 +386,7 @@ const baseIconSizes = [ 16, 22, 24, 32, 48, 64 ];
 var Dash = new Lang.Class({
    Name: 'Dash',

-    _init() {
+    _init : function() {
        this._maxHeight = -1;
        this.iconSize = 64;
        this._shownInitially = false;
@ -414,39 +415,40 @@ var Dash = new Lang.Class({
        this._container.add_actor(this._showAppsIcon);

        this.actor = new St.Bin({ child: this._container });
-        this.actor.connect('notify::height', () => {
-            if (this._maxHeight != this.actor.height)
-                this._queueRedisplay();
-            this._maxHeight = this.actor.height;
-        });
+        this.actor.connect('notify::height', Lang.bind(this,
+            function() {
+                if (this._maxHeight != this.actor.height)
+                    this._queueRedisplay();
+                this._maxHeight = this.actor.height;
+            }));

-        this._workId = Main.initializeDeferredWork(this._box, this._redisplay.bind(this));
+        this._workId = Main.initializeDeferredWork(this._box, Lang.bind(this, this._redisplay));

        this._appSystem = Shell.AppSystem.get_default();

-        this._appSystem.connect('installed-changed', () => {
+        this._appSystem.connect('installed-changed', Lang.bind(this, function() {
            AppFavorites.getAppFavorites().reload();
            this._queueRedisplay();
-        });
-        AppFavorites.getAppFavorites().connect('changed', this._queueRedisplay.bind(this));
-        this._appSystem.connect('app-state-changed', this._queueRedisplay.bind(this));
+        }));
+        AppFavorites.getAppFavorites().connect('changed', Lang.bind(this, this._queueRedisplay));
+        this._appSystem.connect('app-state-changed', Lang.bind(this, this._queueRedisplay));

        Main.overview.connect('item-drag-begin',
-                              this._onDragBegin.bind(this));
+                              Lang.bind(this, this._onDragBegin));
        Main.overview.connect('item-drag-end',
-                              this._onDragEnd.bind(this));
+                              Lang.bind(this, this._onDragEnd));
        Main.overview.connect('item-drag-cancelled',
-                              this._onDragCancelled.bind(this));
+                              Lang.bind(this, this._onDragCancelled));

        // Translators: this is the name of the dock/favorites area on
        // the left of the overview
        Main.ctrlAltTabManager.addGroup(this.actor, _("Dash"), 'user-bookmarks-symbolic');
    },

-    _onDragBegin() {
+    _onDragBegin: function() {
        this._dragCancelled = false;
        this._dragMonitor = {
-            dragMotion: this._onDragMotion.bind(this)
+            dragMotion: Lang.bind(this, this._onDragMotion)
        };
        DND.addDragMonitor(this._dragMonitor);

@ -457,26 +459,26 @@ var Dash = new Lang.Class({
        }
    },

-    _onDragCancelled() {
+    _onDragCancelled: function() {
        this._dragCancelled = true;
        this._endDrag();
    },

-    _onDragEnd() {
+    _onDragEnd: function() {
        if (this._dragCancelled)
            return;

        this._endDrag();
    },

-    _endDrag() {
+    _endDrag: function() {
        this._clearDragPlaceholder();
        this._clearEmptyDropTarget();
        this._showAppsIcon.setDragApp(null);
        DND.removeDragMonitor(this._dragMonitor);
    },

-    _onDragMotion(dragEvent) {
+    _onDragMotion: function(dragEvent) {
        let app = getAppFromSource(dragEvent.source);
        if (app == null)
            return DND.DragMotionResult.CONTINUE;
@ -495,56 +497,56 @@ var Dash = new Lang.Class({
        return DND.DragMotionResult.CONTINUE;
    },

-    _appIdListToHash(apps) {
+    _appIdListToHash: function(apps) {
        let ids = {};
        for (let i = 0; i < apps.length; i++)
            ids[apps[i].get_id()] = apps[i];
        return ids;
    },

-    _queueRedisplay() {
+    _queueRedisplay: function () {
        Main.queueDeferredWork(this._workId);
    },

-    _hookUpLabel(item, appIcon) {
-        item.child.connect('notify::hover', () => {
+    _hookUpLabel: function(item, appIcon) {
+        item.child.connect('notify::hover', Lang.bind(this, function() {
            this._syncLabel(item, appIcon);
-        });
+        }));

-        let id = Main.overview.connect('hiding', () => {
+        let id = Main.overview.connect('hiding', Lang.bind(this, function() {
            this._labelShowing = false;
            item.hideLabel();
-        });
-        item.child.connect('destroy', () => {
+        }));
+        item.child.connect('destroy', function() {
            Main.overview.disconnect(id);
        });

        if (appIcon) {
-            appIcon.connect('sync-tooltip', () => {
+            appIcon.connect('sync-tooltip', Lang.bind(this, function() {
                this._syncLabel(item, appIcon);
-            });
+            }));
        }
    },

-    _createAppItem(app) {
+    _createAppItem: function(app) {
        let appIcon = new AppDisplay.AppIcon(app,
                                             { setSizeManually: true,
                                               showLabel: false });
        if (appIcon._draggable) {
            appIcon._draggable.connect('drag-begin',
-                                       () => {
+                                       Lang.bind(this, function() {
                                           appIcon.actor.opacity = 50;
-                                       });
+                                       }));
            appIcon._draggable.connect('drag-end',
-                                       () => {
+                                       Lang.bind(this, function() {
                                           appIcon.actor.opacity = 255;
-                                       });
+                                       }));
        }

        appIcon.connect('menu-state-changed',
-                        (appIcon, opened) => {
+                        Lang.bind(this, function(appIcon, opened) {
                            this._itemMenuStateChanged(item, opened);
-                        });
+                        }));

        let item = new DashItemContainer();
        item.setChild(appIcon.actor);
@ -560,7 +562,7 @@ var Dash = new Lang.Class({
        return item;
    },

-    _itemMenuStateChanged(item, opened) {
+    _itemMenuStateChanged: function(item, opened) {
        // When the menu closes, it calls sync_hover, which means
        // that the notify::hover handler does everything we need to.
        if (opened) {
@ -573,19 +575,19 @@ var Dash = new Lang.Class({
        }
    },

-    _syncLabel(item, appIcon) {
+    _syncLabel: function (item, appIcon) {
        let shouldShow = appIcon ? appIcon.shouldShowTooltip() : item.child.get_hover();

        if (shouldShow) {
            if (this._showLabelTimeoutId == 0) {
                let timeout = this._labelShowing ? 0 : DASH_ITEM_HOVER_TIMEOUT;
                this._showLabelTimeoutId = Mainloop.timeout_add(timeout,
-                    () => {
+                    Lang.bind(this, function() {
                        this._labelShowing = true;
                        item.showLabel();
                        this._showLabelTimeoutId = 0;
                        return GLib.SOURCE_REMOVE;
-                    });
+                    }));
                GLib.Source.set_name_by_id(this._showLabelTimeoutId, '[gnome-shell] item.showLabel');
                if (this._resetHoverTimeoutId > 0) {
                    Mainloop.source_remove(this._resetHoverTimeoutId);
@ -599,22 +601,22 @@ var Dash = new Lang.Class({
            item.hideLabel();
            if (this._labelShowing) {
                this._resetHoverTimeoutId = Mainloop.timeout_add(DASH_ITEM_HOVER_TIMEOUT,
-                    () => {
+                    Lang.bind(this, function() {
                        this._labelShowing = false;
                        this._resetHoverTimeoutId = 0;
                        return GLib.SOURCE_REMOVE;
-                    });
+                    }));
                GLib.Source.set_name_by_id(this._resetHoverTimeoutId, '[gnome-shell] this._labelShowing');
            }
        }
    },

-    _adjustIconSize() {
+    _adjustIconSize: function() {
        // For the icon size, we only consider children which are "proper"
        // icons (i.e. ignoring drag placeholders) and which are not
        // animating out (which means they will be destroyed at the end of
        // the animation)
-        let iconChildren = this._box.get_children().filter(actor => {
+        let iconChildren = this._box.get_children().filter(function(actor) {
            return actor.child &&
                   actor.child._delegate &&
                   actor.child._delegate.icon &&
@ -653,7 +655,9 @@ var Dash = new Lang.Class({

        let availSize = availHeight / iconChildren.length;

-        let iconSizes = baseIconSizes.map(s => s * scaleFactor);
+        let iconSizes = baseIconSizes.map(function(s) {
+            return s * scaleFactor;
+        });

        let newIconSize = baseIconSizes[0];
        for (let i = 0; i < iconSizes.length; i++) {
@ -699,18 +703,20 @@ var Dash = new Lang.Class({
        }
    },

-    _redisplay() {
+    _redisplay: function () {
        let favorites = AppFavorites.getAppFavorites().getFavoriteMap();

        let running = this._appSystem.get_running();

-        let children = this._box.get_children().filter(actor => {
+        let children = this._box.get_children().filter(function(actor) {
                return actor.child &&
                       actor.child._delegate &&
                       actor.child._delegate.app;
            });
        // Apps currently in the dash
-        let oldApps = children.map(actor => actor.child._delegate.app);
+        let oldApps = children.map(function(actor) {
+                return actor.child._delegate.app;
+            });
        // Apps supposed to be in the dash
        let newApps = [];

@ -776,7 +782,7 @@ var Dash = new Lang.Class({
            let nextApp = newApps.length > newIndex + 1 ? newApps[newIndex + 1]
                                                        : null;
            let insertHere = nextApp && nextApp == oldApp;
-            let alreadyRemoved = removedActors.reduce((result, actor) => {
+            let alreadyRemoved = removedActors.reduce(function(result, actor) {
                let removedApp = actor.child._delegate.app;
                return result || removedApp == newApp;
            }, false);
@ -828,26 +834,27 @@ var Dash = new Lang.Class({
        this._box.queue_relayout();
    },

-    _clearDragPlaceholder() {
+    _clearDragPlaceholder: function() {
        if (this._dragPlaceholder) {
            this._animatingPlaceholdersCount++;
            this._dragPlaceholder.animateOutAndDestroy();
-            this._dragPlaceholder.connect('destroy', () => {
-                this._animatingPlaceholdersCount--;
-            });
+            this._dragPlaceholder.connect('destroy',
+                Lang.bind(this, function() {
+                    this._animatingPlaceholdersCount--;
+                }));
            this._dragPlaceholder = null;
        }
        this._dragPlaceholderPos = -1;
    },

-    _clearEmptyDropTarget() {
+    _clearEmptyDropTarget: function() {
        if (this._emptyDropTarget) {
            this._emptyDropTarget.animateOutAndDestroy();
            this._emptyDropTarget = null;
        }
    },

-    handleDragOver(source, actor, x, y, time) {
+    handleDragOver : function(source, actor, x, y, time) {
        let app = getAppFromSource(source);

        // Don't allow favoriting of transient apps
@ -925,7 +932,7 @@ var Dash = new Lang.Class({
    },

    // Draggable target interface
-    acceptDrop(source, actor, x, y, time) {
+    acceptDrop : function(source, actor, x, y, time) {
        let app = getAppFromSource(source);

        // Don't allow favoriting of transient apps
@ -961,14 +968,15 @@ var Dash = new Lang.Class({
        if (!this._dragPlaceholder)
            return true;

-        Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
-            let appFavorites = AppFavorites.getAppFavorites();
-            if (srcIsFavorite)
-                appFavorites.moveFavoriteToPos(id, favPos);
-            else
-                appFavorites.addFavoriteAtPos(id, favPos);
-            return false;
-        });
+        Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this,
+            function () {
+                let appFavorites = AppFavorites.getAppFavorites();
+                if (srcIsFavorite)
+                    appFavorites.moveFavoriteToPos(id, favPos);
+                else
+                    appFavorites.addFavoriteAtPos(id, favPos);
+                return false;
+            }));

        return true;
    }
--- a/js/ui/dateMenu.js
+++ b/js/ui/dateMenu.js
@ -34,7 +34,7 @@ function _isToday(date) {
 var TodayButton = new Lang.Class({
    Name: 'TodayButton',

-    _init(calendar) {
+    _init: function(calendar) {
        // Having the ability to go to the current date if the user is already
        // on the current date can be confusing. So don't make the button reactive
        // until the selected date changes.
@ -43,9 +43,10 @@ var TodayButton = new Lang.Class({
                                     can_focus: true,
                                     reactive: false
                                   });
-        this.actor.connect('clicked', () => {
-            this._calendar.setDate(new Date(), false);
-        });
+        this.actor.connect('clicked', Lang.bind(this,
+            function() {
+                this._calendar.setDate(new Date(), false);
+            }));

        let hbox = new St.BoxLayout({ vertical: true });
        this.actor.add_actor(hbox);
@ -58,14 +59,15 @@ var TodayButton = new Lang.Class({
        hbox.add_actor(this._dateLabel);

        this._calendar = calendar;
-        this._calendar.connect('selected-date-changed', (calendar, date) => {
-            // Make the button reactive only if the selected date is not the
-            // current date.
-            this.actor.reactive = !_isToday(date)
-        });
+        this._calendar.connect('selected-date-changed', Lang.bind(this,
+            function(calendar, date) {
+                // Make the button reactive only if the selected date is not the
+                // current date.
+                this.actor.reactive = !_isToday(date)
+            }));
    },

-    setDate(date) {
+    setDate: function(date) {
        this._dayLabel.set_text(date.toLocaleFormat('%A'));

        /* Translators: This is the date format to use when the calendar popup is
@ -86,7 +88,7 @@ var TodayButton = new Lang.Class({
 var WorldClocksSection = new Lang.Class({
    Name: 'WorldClocksSection',

-    _init() {
+    _init: function() {
        this._clock = new GnomeDesktop.WallClock();
        this._clockNotifyId = 0;

@ -95,12 +97,13 @@ var WorldClocksSection = new Lang.Class({
        this.actor = new St.Button({ style_class: 'world-clocks-button',
                                     x_fill: true,
                                     can_focus: true });
-        this.actor.connect('clicked', () => {
-            this._clockAppMon.activateApp();
+        this.actor.connect('clicked', Lang.bind(this,
+            function() {
+                this._clockAppMon.activateApp();

-            Main.overview.hide();
-            Main.panel.closeCalendar();
-        });
+                Main.overview.hide();
+                Main.panel.closeCalendar();
+            }));

        let layout = new Clutter.GridLayout({ orientation: Clutter.Orientation.VERTICAL });
        this._grid = new St.Widget({ style_class: 'world-clocks-grid',
@ -112,17 +115,17 @@ var WorldClocksSection = new Lang.Class({
        this._clockAppMon = new Util.AppSettingsMonitor('org.gnome.clocks.desktop',
                                                        'org.gnome.clocks');
        this._clockAppMon.connect('available-changed',
-                                  this._sync.bind(this));
+                                  Lang.bind(this, this._sync));
        this._clockAppMon.watchSetting('world-clocks',
-                                       this._clocksChanged.bind(this));
+                                       Lang.bind(this, this._clocksChanged));
        this._sync();
    },

-    _sync() {
+    _sync: function() {
        this.actor.visible = this._clockAppMon.available;
    },

-    _clocksChanged(settings) {
+    _clocksChanged: function(settings) {
        this._grid.destroy_all_children();
        this._locations = [];

@ -136,7 +139,7 @@ var WorldClocksSection = new Lang.Class({
                this._locations.push({ location: l });
        }

-        this._locations.sort((a, b) => {
+        this._locations.sort(function(a, b) {
            return a.location.get_timezone().get_offset() -
                   b.location.get_timezone().get_offset();
        });
@ -153,10 +156,8 @@ var WorldClocksSection = new Lang.Class({
        for (let i = 0; i < this._locations.length; i++) {
            let l = this._locations[i].location;

-            let name = l.get_level() == GWeather.LocationLevel.NAMED_TIMEZONE ? l.get_name()
-                                                                              : l.get_city_name();
            let label = new St.Label({ style_class: 'world-clocks-city',
-                                       text: name,
+                                       text: l.get_city_name(),
                                       x_align: Clutter.ActorAlign.START,
                                       x_expand: true });

@ -178,7 +179,7 @@ var WorldClocksSection = new Lang.Class({
        if (this._grid.get_n_children() > 1) {
            if (!this._clockNotifyId)
                this._clockNotifyId =
-                    this._clock.connect('notify::clock', this._updateLabels.bind(this));
+                    this._clock.connect('notify::clock', Lang.bind(this, this._updateLabels));
            this._updateLabels();
        } else {
            if (this._clockNotifyId)
@ -187,7 +188,7 @@ var WorldClocksSection = new Lang.Class({
        }
    },

-    _updateLabels() {
+    _updateLabels: function() {
        for (let i = 0; i < this._locations.length; i++) {
            let l = this._locations[i];
            let tz = GLib.TimeZone.new(l.location.get_timezone().get_tzid());
@ -200,7 +201,7 @@ var WorldClocksSection = new Lang.Class({
 var WeatherSection = new Lang.Class({
    Name: 'WeatherSection',

-    _init() {
+    _init: function() {
        this._weatherClient = new Weather.WeatherClient();

        this.actor = new St.Button({ style_class: 'weather-button',
@ -232,11 +233,11 @@ var WeatherSection = new Lang.Class({
        this._conditionsLabel.clutter_text.line_wrap = true;
        box.add_child(this._conditionsLabel);

-        this._weatherClient.connect('changed', this._sync.bind(this));
+        this._weatherClient.connect('changed', Lang.bind(this, this._sync));
        this._sync();
    },

-    _getSummary(info, capitalize=false) {
+    _getSummary: function(info, capitalize=false) {
        let options = capitalize ? GWeather.FormatOptions.SENTENCE_CAPITALIZATION
                                 : GWeather.FormatOptions.NO_CAPITALIZATION;

@ -250,7 +251,7 @@ var WeatherSection = new Lang.Class({
        return GWeather.Sky.to_string_full(sky, options);
    },

-    _sameSummary(info1, info2) {
+    _sameSummary: function(info1, info2) {
        let [ok1, phenom1, qualifier1] = info1.get_value_conditions();
        let [ok2, phenom2, qualifier2] = info2.get_value_conditions();
        if (ok1 || ok2)
@ -261,7 +262,7 @@ var WeatherSection = new Lang.Class({
        return sky1 == sky2;
    },

-    _getSummaryText() {
+    _getSummaryText: function() {
        let info = this._weatherClient.info;
        let forecasts = info.get_forecast_list();
        if (forecasts.length == 0) // No forecasts, just current conditions
@ -309,7 +310,7 @@ var WeatherSection = new Lang.Class({
        return String.prototype.format.apply(fmt, summaries);
    },

-    _getLabelText() {
+    _getLabelText: function() {
        if (!this._weatherClient.hasLocation)
            return _("Select a location…");

@ -328,7 +329,7 @@ var WeatherSection = new Lang.Class({
        return _("Weather information is currently unavailable");
    },

-    _sync() {
+    _sync: function() {
        this.actor.visible = this._weatherClient.available;

        if (!this.actor.visible)
@ -341,7 +342,7 @@ var WeatherSection = new Lang.Class({
 var MessagesIndicator = new Lang.Class({
    Name: 'MessagesIndicator',

-    _init() {
+    _init: function() {
        this.actor = new St.Icon({ icon_name: 'message-indicator-symbolic',
                                   icon_size: 16,
                                   visible: false, y_expand: true,
@ -349,28 +350,31 @@ var MessagesIndicator = new Lang.Class({

        this._sources = [];

-        Main.messageTray.connect('source-added', this._onSourceAdded.bind(this));
-        Main.messageTray.connect('source-removed', this._onSourceRemoved.bind(this));
-        Main.messageTray.connect('queue-changed', this._updateCount.bind(this));
+        Main.messageTray.connect('source-added', Lang.bind(this, this._onSourceAdded));
+        Main.messageTray.connect('source-removed', Lang.bind(this, this._onSourceRemoved));
+        Main.messageTray.connect('queue-changed', Lang.bind(this, this._updateCount));

        let sources = Main.messageTray.getSources();
-        sources.forEach(source => { this._onSourceAdded(null, source); });
+        sources.forEach(Lang.bind(this, function(source) { this._onSourceAdded(null, source); }));
    },

-    _onSourceAdded(tray, source) {
-        source.connect('count-updated', this._updateCount.bind(this));
+    _onSourceAdded: function(tray, source) {
+        source.connect('count-updated', Lang.bind(this, this._updateCount));
        this._sources.push(source);
        this._updateCount();
    },

-    _onSourceRemoved(tray, source) {
+    _onSourceRemoved: function(tray, source) {
        this._sources.splice(this._sources.indexOf(source), 1);
        this._updateCount();
    },

-    _updateCount() {
+    _updateCount: function() {
        let count = 0;
-        this._sources.forEach(source => { count += source.unseenCount; });
+        this._sources.forEach(Lang.bind(this,
+            function(source) {
+                count += source.unseenCount;
+            }));
        count -= Main.messageTray.queueCount;

        this.actor.visible = (count > 0);
@ -381,19 +385,19 @@ var IndicatorPad = new Lang.Class({
    Name: 'IndicatorPad',
    Extends: St.Widget,

-    _init(actor) {
+    _init: function(actor) {
        this._source = actor;
        this._source.connect('notify::visible', () => { this.queue_relayout(); });
        this.parent();
    },

-    vfunc_get_preferred_width(container, forHeight) {
+    vfunc_get_preferred_width: function(container, forHeight) {
        if (this._source.visible)
            return this._source.get_preferred_width(forHeight);
        return [0, 0];
    },

-    vfunc_get_preferred_height(container, forWidth) {
+    vfunc_get_preferred_height: function(container, forWidth) {
        if (this._source.visible)
            return this._source.get_preferred_height(forWidth);
        return [0, 0];
@ -404,7 +408,7 @@ var FreezableBinLayout = new Lang.Class({
    Name: 'FreezableBinLayout',
    Extends: Clutter.BinLayout,

-    _init() {
+    _init: function() {
        this.parent();

        this._frozen = false;
@ -421,19 +425,19 @@ var FreezableBinLayout = new Lang.Class({
            this.layout_changed();
    },

-    vfunc_get_preferred_width(container, forHeight) {
+    vfunc_get_preferred_width: function(container, forHeight) {
        if (!this._frozen || this._savedWidth.some(isNaN))
            return this.parent(container, forHeight);
        return this._savedWidth;
    },

-    vfunc_get_preferred_height(container, forWidth) {
+    vfunc_get_preferred_height: function(container, forWidth) {
        if (!this._frozen || this._savedHeight.some(isNaN))
            return this.parent(container, forWidth);
        return this._savedHeight;
    },

-    vfunc_allocate(container, allocation, flags) {
+    vfunc_allocate: function(container, allocation, flags) {
        this.parent(container, allocation, flags);

        let [width, height] = allocation.get_size();
@ -446,12 +450,12 @@ var CalendarColumnLayout = new Lang.Class({
    Name: 'CalendarColumnLayout',
    Extends: Clutter.BoxLayout,

-    _init(actor) {
+    _init: function(actor) {
        this.parent({ orientation: Clutter.Orientation.VERTICAL });
        this._calActor = actor;
    },

-    vfunc_get_preferred_width(container, forHeight) {
+    vfunc_get_preferred_width: function(container, forHeight) {
        if (!this._calActor || this._calActor.get_parent() != container)
            return this.parent(container, forHeight);
        return this._calActor.get_preferred_width(forHeight);
@ -462,7 +466,7 @@ var DateMenuButton = new Lang.Class({
    Name: 'DateMenuButton',
    Extends: PanelMenu.Button,

-    _init() {
+    _init: function() {
        let item;
        let hbox;
        let vbox;
@ -496,12 +500,12 @@ var DateMenuButton = new Lang.Class({

        this._calendar = new Calendar.Calendar();
        this._calendar.connect('selected-date-changed',
-                               (calendar, date) => {
+                               Lang.bind(this, function(calendar, date) {
                                   layout.frozen = !_isToday(date);
                                   this._messageList.setDate(date);
-                               });
+                               }));

-        this.menu.connect('open-state-changed', (menu, isOpen) => {
+        this.menu.connect('open-state-changed', Lang.bind(this, function(menu, isOpen) {
            // Whenever the menu is opened, select today
            if (isOpen) {
                let now = new Date();
@ -509,7 +513,7 @@ var DateMenuButton = new Lang.Class({
                this._date.setDate(now);
                this._messageList.setDate(now);
            }
-        });
+        }));

        // Fill up the first column
        this._messageList = new Calendar.CalendarMessageList();
@ -547,17 +551,17 @@ var DateMenuButton = new Lang.Class({

        this._clock = new GnomeDesktop.WallClock();
        this._clock.bind_property('clock', this._clockDisplay, 'text', GObject.BindingFlags.SYNC_CREATE);
-        this._clock.connect('notify::timezone', this._updateTimeZone.bind(this));
+        this._clock.connect('notify::timezone', Lang.bind(this, this._updateTimeZone));

-        Main.sessionMode.connect('updated', this._sessionUpdated.bind(this));
+        Main.sessionMode.connect('updated', Lang.bind(this, this._sessionUpdated));
        this._sessionUpdated();
    },

-    _getEventSource() {
+    _getEventSource: function() {
        return new Calendar.DBusEventSource();
    },

-    _setEventSource(eventSource) {
+    _setEventSource: function(eventSource) {
        if (this._eventSource)
            this._eventSource.destroy();

@ -567,7 +571,7 @@ var DateMenuButton = new Lang.Class({
        this._eventSource = eventSource;
    },

-    _updateTimeZone() {
+    _updateTimeZone: function() {
        // SpiderMonkey caches the time zone so we must explicitly clear it
        // before we can update the calendar, see
        // https://bugzilla.gnome.org/show_bug.cgi?id=678507
@ -576,7 +580,7 @@ var DateMenuButton = new Lang.Class({
        this._calendar.updateTimeZone();
    },

-    _sessionUpdated() {
+    _sessionUpdated: function() {
        let eventSource;
        let showEvents = Main.sessionMode.showCalendarEvents;
        if (showEvents) {
--- a/js/ui/dialog.js
+++ b/js/ui/dialog.js
@ -11,9 +11,9 @@ var Dialog = new Lang.Class({
    Name: 'Dialog',
    Extends: St.Widget,

-    _init(parentActor, styleClass) {
+    _init: function (parentActor, styleClass) {
        this.parent({ layout_manager: new Clutter.BinLayout() });
-        this.connect('destroy', this._onDestroy.bind(this));
+        this.connect('destroy', Lang.bind(this, this._onDestroy));

        this._initialKeyFocus = null;
        this._initialKeyFocusDestroyId = 0;
@ -26,11 +26,11 @@ var Dialog = new Lang.Class({
            this._dialog.add_style_class_name(styleClass);

        this._parentActor = parentActor;
-        this._eventId = this._parentActor.connect('event', this._modalEventHandler.bind(this));
+        this._eventId = this._parentActor.connect('event', Lang.bind(this, this._modalEventHandler));
        this._parentActor.add_child(this);
    },

-    _createDialog() {
+    _createDialog: function () {
        this._dialog = new St.BoxLayout({ style_class: 'modal-dialog',
                                          x_align:     Clutter.ActorAlign.CENTER,
                                          y_align:     Clutter.ActorAlign.CENTER,
@ -56,13 +56,13 @@ var Dialog = new Lang.Class({
                           y_align: St.Align.START });
    },

-    _onDestroy() {
+    _onDestroy: function () {
        if (this._eventId != 0)
            this._parentActor.disconnect(this._eventId);
        this._eventId = 0;
    },

-    _modalEventHandler(actor, event) {
+    _modalEventHandler: function (actor, event) {
        if (event.type() == Clutter.EventType.KEY_PRESS) {
            this._pressedKey = event.get_key_symbol();
        } else if (event.type() == Clutter.EventType.KEY_RELEASE) {
@ -88,7 +88,7 @@ var Dialog = new Lang.Class({
        return Clutter.EVENT_PROPAGATE;
    },

-    _setInitialKeyFocus(actor) {
+    _setInitialKeyFocus: function(actor) {
        if (this._initialKeyFocus)
            this._initialKeyFocus.disconnect(this._initialKeyFocusDestroyId);

@ -104,11 +104,11 @@ var Dialog = new Lang.Class({
        return this._initialKeyFocus || this;
    },

-    addContent(actor) {
+    addContent: function (actor) {
        this.contentLayout.add (actor, { expand: true });
    },

-    addButton(buttonInfo) {
+    addButton: function (buttonInfo) {
        let { label, action, key } = buttonInfo;
        let isDefault = buttonInfo['default'];
        let keys;
@ -145,7 +145,7 @@ var Dialog = new Lang.Class({
        return button;
    },

-    clearButtons() {
+    clearButtons: function () {
        this.buttonLayout.destroy_all_children();
        this._buttonKeys = {};
    },
@ -173,7 +173,7 @@ var MessageDialogContent = new Lang.Class({
                                         null)
    },

-    _init(params) {
+    _init: function(params) {
        this._icon = new St.Icon({ y_align: Clutter.ActorAlign.START });
        this._title = new St.Label({ style_class: 'headline' });
        this._subtitle = new St.Label();
@ -243,7 +243,7 @@ var MessageDialogContent = new Lang.Class({
        this.notify(prop);
    },

-    insertBeforeBody(actor) {
+    insertBeforeBody: function(actor) {
        this.messageBox.insert_child_below(actor, this._body);
    }
 });
--- a/js/ui/dnd.js
+++ b/js/ui/dnd.js
@ -49,9 +49,10 @@ function _getEventHandlerActor() {
        Main.uiGroup.add_actor(eventHandlerActor);
        // We connect to 'event' rather than 'captured-event' because the capturing phase doesn't happen
        // when you've grabbed the pointer.
-        eventHandlerActor.connect('event', (actor, event) => {
-            return currentDraggable._onEvent(actor, event);
-        });
+        eventHandlerActor.connect('event',
+                                  function(actor, event) {
+                                      return currentDraggable._onEvent(actor, event);
+                                  });
    }
    return eventHandlerActor;
 }
@ -71,7 +72,7 @@ function removeDragMonitor(monitor) {
 var _Draggable = new Lang.Class({
    Name: 'Draggable',

-    _init(actor, params) {
+    _init : function(actor, params) {
        params = Params.parse(params, { manualMode: false,
                                        restoreOnSuccess: false,
                                        dragActorMaxSize: undefined,
@ -80,18 +81,18 @@ var _Draggable = new Lang.Class({
        this.actor = actor;
        if (!params.manualMode) {
            this.actor.connect('button-press-event',
-                               this._onButtonPress.bind(this));
+                               Lang.bind(this, this._onButtonPress));
            this.actor.connect('touch-event',
-                               this._onTouchEvent.bind(this));
+                               Lang.bind(this, this._onTouchEvent));
        }

-        this.actor.connect('destroy', () => {
+        this.actor.connect('destroy', Lang.bind(this, function() {
            this._actorDestroyed = true;

            if (this._dragInProgress && this._dragCancellable)
                this._cancelDrag(global.get_current_time());
            this.disconnectAll();
-        });
+        }));
        this._onEventId = null;
        this._touchSequence = null;

@ -107,7 +108,7 @@ var _Draggable = new Lang.Class({
        this._eventsGrabbed = false;
    },

-    _onButtonPress(actor, event) {
+    _onButtonPress : function (actor, event) {
        if (event.get_button() != 1)
            return Clutter.EVENT_PROPAGATE;

@ -124,7 +125,7 @@ var _Draggable = new Lang.Class({
        return Clutter.EVENT_PROPAGATE;
    },

-    _onTouchEvent(actor, event) {
+    _onTouchEvent: function (actor, event) {
        if (event.type() != Clutter.EventType.TOUCH_BEGIN ||
            !global.display.is_pointer_emulating_sequence(event.get_event_sequence()))
            return Clutter.EVENT_PROPAGATE;
@ -144,7 +145,7 @@ var _Draggable = new Lang.Class({
        return Clutter.EVENT_PROPAGATE;
    },

-    _grabDevice(actor) {
+    _grabDevice: function(actor) {
        let manager = Clutter.DeviceManager.get_default();
        let pointer = manager.get_core_device(Clutter.InputDeviceType.POINTER_DEVICE);

@ -156,7 +157,7 @@ var _Draggable = new Lang.Class({
        this._grabbedDevice = pointer;
    },

-    _ungrabDevice() {
+    _ungrabDevice: function() {
        if (this._touchSequence)
            this._grabbedDevice.sequence_ungrab (this._touchSequence);
        else
@ -166,13 +167,13 @@ var _Draggable = new Lang.Class({
        this._grabbedDevice = null;
    },

-    _grabActor() {
+    _grabActor: function() {
        this._grabDevice(this.actor);
        this._onEventId = this.actor.connect('event',
-                                             this._onEvent.bind(this));
+                                             Lang.bind(this, this._onEvent));
    },

-    _ungrabActor() {
+    _ungrabActor: function() {
        if (!this._onEventId)
            return;

@ -181,7 +182,7 @@ var _Draggable = new Lang.Class({
        this._onEventId = null;
    },

-    _grabEvents() {
+    _grabEvents: function() {
        if (!this._eventsGrabbed) {
            this._eventsGrabbed = Main.pushModal(_getEventHandlerActor());
            if (this._eventsGrabbed)
@ -189,7 +190,7 @@ var _Draggable = new Lang.Class({
        }
    },

-    _ungrabEvents() {
+    _ungrabEvents: function() {
        if (this._eventsGrabbed) {
            this._ungrabDevice();
            Main.popModal(_getEventHandlerActor());
@ -197,7 +198,7 @@ var _Draggable = new Lang.Class({
        }
    },

-    _onEvent(actor, event) {
+    _onEvent: function(actor, event) {
        // We intercept BUTTON_RELEASE event to know that the button was released in case we
        // didn't start the drag, to drop the draggable in case the drag was in progress, and
        // to complete the drag and ensure that whatever happens to be under the pointer does
@ -248,7 +249,7 @@ var _Draggable = new Lang.Class({
     * actors for other purposes (for example if you're using
     * PopupMenu.ignoreRelease())
     */
-    fakeRelease() {
+    fakeRelease: function() {
        this._buttonDown = false;
        this._ungrabActor();
    },
@ -263,7 +264,7 @@ var _Draggable = new Lang.Class({
     * This function is useful to call if you've specified manualMode
     * for the draggable.
     */
-    startDrag(stageX, stageY, time, sequence) {
+    startDrag: function (stageX, stageY, time, sequence) {
        currentDraggable = this;
        this._dragInProgress = true;

@ -280,7 +281,7 @@ var _Draggable = new Lang.Class({

        this._touchSequence = sequence;
        this._grabEvents();
-        global.display.set_cursor(Meta.Cursor.DND_IN_DRAG);
+        global.screen.set_cursor(Meta.Cursor.DND_IN_DRAG);

        this._dragX = this._dragStartX = stageX;
        this._dragY = this._dragStartY = stageY;
@ -370,7 +371,7 @@ var _Draggable = new Lang.Class({
                                   scale_y: scale * origScale,
                                   time: SCALE_ANIMATION_TIME,
                                   transition: 'easeOutQuad',
-                                   onUpdate() {
+                                   onUpdate: function() {
                                       let currentScale = this._dragActor.scale_x / origScale;
                                       this._dragOffsetX = currentScale * origDragOffsetX;
                                       this._dragOffsetY = currentScale * origDragOffsetY;
@ -382,7 +383,7 @@ var _Draggable = new Lang.Class({
        }
    },

-    _maybeStartDrag(event) {
+    _maybeStartDrag:  function(event) {
        let [stageX, stageY] = event.get_coords();

        // See if the user has moved the mouse enough to trigger a drag
@ -396,7 +397,7 @@ var _Draggable = new Lang.Class({
        return true;
    },

-    _updateDragHover() {
+    _updateDragHover : function () {
        this._updateHoverId = 0;
        let target = this._dragActor.get_stage().get_actor_at_pos(Clutter.PickMode.ALL,
                                                                  this._dragX, this._dragY);
@ -412,7 +413,7 @@ var _Draggable = new Lang.Class({
            if (motionFunc) {
                let result = motionFunc(dragEvent);
                if (result != DragMotionResult.CONTINUE) {
-                    global.display.set_cursor(DRAG_CURSOR_MAP[result]);
+                    global.screen.set_cursor(DRAG_CURSOR_MAP[result]);
                    return GLib.SOURCE_REMOVE;
                }
            }
@ -430,26 +431,26 @@ var _Draggable = new Lang.Class({
                                                             targY,
                                                             0);
                if (result != DragMotionResult.CONTINUE) {
-                    global.display.set_cursor(DRAG_CURSOR_MAP[result]);
+                    global.screen.set_cursor(DRAG_CURSOR_MAP[result]);
                    return GLib.SOURCE_REMOVE;
                }
            }
            target = target.get_parent();
        }
-        global.display.set_cursor(Meta.Cursor.DND_IN_DRAG);
+        global.screen.set_cursor(Meta.Cursor.DND_IN_DRAG);
        return GLib.SOURCE_REMOVE;
    },

-    _queueUpdateDragHover() {
+    _queueUpdateDragHover: function() {
        if (this._updateHoverId)
            return;

        this._updateHoverId = GLib.idle_add(GLib.PRIORITY_DEFAULT,
-                                            this._updateDragHover.bind(this));
+                                            Lang.bind(this, this._updateDragHover));
        GLib.Source.set_name_by_id(this._updateHoverId, '[gnome-shell] this._updateDragHover');
    },

-    _updateDragPosition(event) {
+    _updateDragPosition : function (event) {
        let [stageX, stageY] = event.get_coords();
        this._dragX = stageX;
        this._dragY = stageY;
@ -460,7 +461,7 @@ var _Draggable = new Lang.Class({
        return true;
    },

-    _dragActorDropped(event) {
+    _dragActorDropped: function(event) {
        let [dropX, dropY] = event.get_coords();
        let target = this._dragActor.get_stage().get_actor_at_pos(Clutter.PickMode.ALL,
                                                                  dropX, dropY);
@ -509,7 +510,7 @@ var _Draggable = new Lang.Class({
                    }

                    this._dragInProgress = false;
-                    global.display.set_cursor(Meta.Cursor.DEFAULT);
+                    global.screen.set_cursor(Meta.Cursor.DEFAULT);
                    this.emit('drag-end', event.get_time(), true);
                    this._dragComplete();
                    return true;
@ -523,7 +524,7 @@ var _Draggable = new Lang.Class({
        return true;
    },

-    _getRestoreLocation() {
+    _getRestoreLocation: function() {
        let x, y, scale;

        if (this._dragActorSource && this._dragActorSource.visible) {
@ -555,13 +556,13 @@ var _Draggable = new Lang.Class({
        return [x, y, scale];
    },

-    _cancelDrag(eventTime) {
+    _cancelDrag: function(eventTime) {
        this.emit('drag-cancelled', eventTime);
        this._dragInProgress = false;
        let [snapBackX, snapBackY, snapBackScale] = this._getRestoreLocation();

        if (this._actorDestroyed) {
-            global.display.set_cursor(Meta.Cursor.DEFAULT);
+            global.screen.set_cursor(Meta.Cursor.DEFAULT);
            if (!this._buttonDown)
                this._dragComplete();
            this.emit('drag-end', eventTime, false);
@ -580,7 +581,7 @@ var _Draggable = new Lang.Class({
                             });
    },

-    _restoreDragActor(eventTime) {
+    _restoreDragActor: function(eventTime) {
        this._dragInProgress = false;
        let [restoreX, restoreY, restoreScale] = this._getRestoreLocation();

@ -593,14 +594,14 @@ var _Draggable = new Lang.Class({
                             { time: REVERT_ANIMATION_TIME });
    },

-    _animateDragEnd(eventTime, params) {
+    _animateDragEnd: function (eventTime, params) {
        this._animationInProgress = true;

        // finish animation if the actor gets destroyed
        // during it
        this._dragActorDestroyId =
            this._dragActor.connect('destroy',
-                                    this._finishAnimation.bind(this));
+                                    Lang.bind(this, this._finishAnimation));

        params['opacity']          = this._dragOrigOpacity;
        params['transition']       = 'easeOutQuad';
@ -612,7 +613,7 @@ var _Draggable = new Lang.Class({
        Tweener.addTween(this._dragActor, params)
    },

-    _finishAnimation() {
+    _finishAnimation : function () {
        if (!this._animationInProgress)
            return

@ -620,10 +621,10 @@ var _Draggable = new Lang.Class({
        if (!this._buttonDown)
            this._dragComplete();

-        global.display.set_cursor(Meta.Cursor.DEFAULT);
+        global.screen.set_cursor(Meta.Cursor.DEFAULT);
    },

-    _onAnimationComplete(dragActor, eventTime) {
+    _onAnimationComplete : function (dragActor, eventTime) {
        dragActor.disconnect(this._dragActorDestroyId);
        this._dragActorDestroyId = 0;

@ -640,7 +641,7 @@ var _Draggable = new Lang.Class({
        this._finishAnimation();
    },

-    _dragComplete() {
+    _dragComplete: function() {
        if (!this._actorDestroyed)
            Shell.util_set_hidden_from_pick(this._dragActor, false);

--- a/js/ui/edgeDragAction.js
+++ b/js/ui/edgeDragAction.js
@ -16,23 +16,25 @@ var EdgeDragAction = new Lang.Class({
    Extends: Clutter.GestureAction,
    Signals: { 'activated': {} },

-    _init(side, allowedModes) {
+    _init : function(side, allowedModes) {
        this.parent();
        this._side = side;
        this._allowedModes = allowedModes;
        this.set_n_touch_points(1);

-        global.display.connect('grab-op-begin', () => { this.cancel(); });
+        global.display.connect('grab-op-begin', Lang.bind(this, function() {
+            this.cancel();
+        }));
    },

-    _getMonitorRect(x, y) {
+    _getMonitorRect : function (x, y) {
        let rect = new Meta.Rectangle({ x: x - 1, y: y - 1, width: 1, height: 1 });
-        let monitorIndex = global.display.get_monitor_index_for_rect(rect);
+        let monitorIndex = global.screen.get_monitor_index_for_rect(rect);

-        return global.display.get_monitor_geometry(monitorIndex);
+        return global.screen.get_monitor_geometry(monitorIndex);
    },

-    vfunc_gesture_prepare(action, actor) {
+    vfunc_gesture_prepare : function(action, actor) {
        if (this.get_n_current_points() == 0)
            return false;

@ -48,7 +50,7 @@ var EdgeDragAction = new Lang.Class({
                (this._side == St.Side.BOTTOM && y > monitorRect.y + monitorRect.height - EDGE_THRESHOLD));
    },

-    vfunc_gesture_progress(action, actor) {
+    vfunc_gesture_progress : function (action, actor) {
        let [startX, startY] = this.get_press_coords(0);
        let [x, y] = this.get_motion_coords(0);
        let offsetX = Math.abs (x - startX);
@ -68,7 +70,7 @@ var EdgeDragAction = new Lang.Class({
        return true;
    },

-    vfunc_gesture_end(action, actor) {
+    vfunc_gesture_end : function (action, actor) {
        let [startX, startY] = this.get_press_coords(0);
        let [x, y] = this.get_motion_coords(0);
        let monitorRect = this._getMonitorRect(startX, startY);
--- a/js/ui/endSessionDialog.js
+++ b/js/ui/endSessionDialog.js
@ -63,12 +63,12 @@ const EndSessionDialogIface = '<node> \
 const logoutDialogContent = {
    subjectWithUser: C_("title", "Log Out %s"),
    subject: C_("title", "Log Out"),
-    descriptionWithUser(user, seconds) {
+    descriptionWithUser: function(user, seconds) {
        return ngettext("%s will be logged out automatically in %d second.",
                        "%s will be logged out automatically in %d seconds.",
                        seconds).format(user, seconds);
    },
-    description(seconds) {
+    description: function(seconds) {
        return ngettext("You will be logged out automatically in %d second.",
                        "You will be logged out automatically in %d seconds.",
                        seconds).format(seconds);
@ -83,7 +83,7 @@ const logoutDialogContent = {
 const shutdownDialogContent = {
    subject: C_("title", "Power Off"),
    subjectWithUpdates: C_("title", "Install Updates & Power Off"),
-    description(seconds) {
+    description: function(seconds) {
        return ngettext("The system will power off automatically in %d second.",
                        "The system will power off automatically in %d seconds.",
                        seconds).format(seconds);
@ -101,7 +101,7 @@ const shutdownDialogContent = {

 const restartDialogContent = {
    subject: C_("title", "Restart"),
-    description(seconds) {
+    description: function(seconds) {
        return ngettext("The system will restart automatically in %d second.",
                        "The system will restart automatically in %d seconds.",
                        seconds).format(seconds);
@ -117,7 +117,7 @@ const restartDialogContent = {
 const restartUpdateDialogContent = {

    subject: C_("title", "Restart & Install Updates"),
-    description(seconds) {
+    description: function(seconds) {
        return ngettext("The system will automatically restart and install updates in %d second.",
                        "The system will automatically restart and install updates in %d seconds.",
                        seconds).format(seconds);
@ -135,7 +135,7 @@ const restartUpdateDialogContent = {
 const restartUpgradeDialogContent = {

    subject: C_("title", "Restart & Install Upgrade"),
-    upgradeDescription(distroName, distroVersion) {
+    upgradeDescription: function(distroName, distroVersion) {
        /* Translators: This is the text displayed for system upgrades in the
           shut down dialog. First %s gets replaced with the distro name and
           second %s with the distro version to upgrade to */
@ -279,7 +279,7 @@ var EndSessionDialog = new Lang.Class({
    Name: 'EndSessionDialog',
    Extends: ModalDialog.ModalDialog,

-    _init() {
+    _init: function() {
        this.parent({ styleClass: 'end-session-dialog',
                      destroyOnClose: false });

@ -290,22 +290,22 @@ var EndSessionDialog = new Lang.Class({
        this._pkOfflineProxy = new PkOfflineProxy(Gio.DBus.system,
                                                  'org.freedesktop.PackageKit',
                                                  '/org/freedesktop/PackageKit',
-                                                  (proxy, error) => {
+                                                  Lang.bind(this, function(proxy, error) {
                                                      if (error)
                                                          log(error.message);
-                                                  });
+                                                  }));
        this._powerProxy = new UPowerProxy(Gio.DBus.system,
                                           'org.freedesktop.UPower',
                                           '/org/freedesktop/UPower',
-                                           (proxy, error) => {
+                                           Lang.bind(this, function(proxy, error) {
                                               if (error) {
                                                   log(error.message);
                                                   return;
                                               }
                                               this._powerProxy.connect('g-properties-changed',
-                                                                        this._sync.bind(this));
+                                                                        Lang.bind(this, this._sync));
                                               this._sync();
-                                           });
+                                           }));

        this._secondsLeft = 0;
        this._totalSecondsToStayOpen = 0;
@ -313,12 +313,12 @@ var EndSessionDialog = new Lang.Class({
        this._sessions = [];

        this.connect('destroy',
-                     this._onDestroy.bind(this));
+                     Lang.bind(this, this._onDestroy));
        this.connect('opened',
-                     this._onOpened.bind(this));
+                     Lang.bind(this, this._onOpened));

-        this._userLoadedId = this._user.connect('notify::is_loaded', this._sync.bind(this));
-        this._userChangedId = this._user.connect('changed', this._sync.bind(this));
+        this._userLoadedId = this._user.connect('notify::is_loaded', Lang.bind(this, this._sync));
+        this._userChangedId = this._user.connect('changed', Lang.bind(this, this._sync));

        let mainContentLayout = new St.BoxLayout({ vertical: false });
        this.contentLayout.add(mainContentLayout,
@ -354,7 +354,7 @@ var EndSessionDialog = new Lang.Class({
                            y_align: St.Align.START });

        this._checkBox = new CheckBox.CheckBox();
-        this._checkBox.actor.connect('clicked', this._sync.bind(this));
+        this._checkBox.actor.connect('clicked', Lang.bind(this, this._sync));
        messageLayout.add(this._checkBox.actor);

        this._batteryWarning = new St.Label({ style_class: 'end-session-dialog-warning',
@ -398,12 +398,12 @@ var EndSessionDialog = new Lang.Class({
        this._dbusImpl.export(Gio.DBus.session, '/org/gnome/SessionManager/EndSessionDialog');
    },

-    _onDestroy() {
+    _onDestroy: function() {
        this._user.disconnect(this._userLoadedId);
        this._user.disconnect(this._userChangedId);
    },

-    _sync() {
+    _sync: function() {
        let open = (this.state == ModalDialog.State.OPENING || this.state == ModalDialog.State.OPENED);
        if (!open)
            return;
@ -476,47 +476,48 @@ var EndSessionDialog = new Lang.Class({
        this._sessionHeader.visible = hasSessions;
    },

-    _updateButtons() {
+    _updateButtons: function() {
        let dialogContent = DialogContent[this._type];
-        let buttons = [{ action: this.cancel.bind(this),
+        let buttons = [{ action: Lang.bind(this, this.cancel),
                         label:  _("Cancel"),
                         key:    Clutter.Escape }];

        for (let i = 0; i < dialogContent.confirmButtons.length; i++) {
            let signal = dialogContent.confirmButtons[i].signal;
            let label = dialogContent.confirmButtons[i].label;
-            buttons.push({ action: () => {
-                               this.close(true);
-                               let signalId = this.connect('closed', () => {
-                                   this.disconnect(signalId);
-                                   this._confirm(signal);
-                               });
-                           },
+            buttons.push({ action: Lang.bind(this, function() {
+                                       this.close(true);
+                                       let signalId = this.connect('closed',
+                                                                   Lang.bind(this, function() {
+                                                                       this.disconnect(signalId);
+                                                                       this._confirm(signal);
+                                                                   }));
+                                   }),
                           label: label });
        }

        this.setButtons(buttons);
    },

-    close(skipSignal) {
+    close: function(skipSignal) {
        this.parent();

        if (!skipSignal)
            this._dbusImpl.emit_signal('Closed', null);
    },

-    cancel() {
+    cancel: function() {
        this._stopTimer();
        this._dbusImpl.emit_signal('Canceled', null);
        this.close();
    },

-    _confirm(signal) {
-        let callback = () => {
+    _confirm: function(signal) {
+        let callback = Lang.bind(this, function() {
            this._fadeOutDialog();
            this._stopTimer();
            this._dbusImpl.emit_signal(signal, null);
-        };
+        });

        // Offline update not available; just emit the signal
        if (!this._checkBox.actor.visible) {
@ -546,12 +547,13 @@ var EndSessionDialog = new Lang.Class({
        }
    },

-    _onOpened() {
+    _onOpened: function() {
        this._sync();
    },

-    _triggerOfflineUpdateReboot(callback) {
-        this._pkOfflineProxy.TriggerRemote('reboot', (result, error) => {
+    _triggerOfflineUpdateReboot: function(callback) {
+        this._pkOfflineProxy.TriggerRemote('reboot',
+                                           function (result, error) {
            if (error)
                log(error.message);

@ -559,8 +561,9 @@ var EndSessionDialog = new Lang.Class({
        });
    },

-    _triggerOfflineUpdateShutdown(callback) {
-        this._pkOfflineProxy.TriggerRemote('power-off', (result, error) => {
+    _triggerOfflineUpdateShutdown: function(callback) {
+        this._pkOfflineProxy.TriggerRemote('power-off',
+                                           function (result, error) {
            if (error)
                log(error.message);

@ -568,8 +571,8 @@ var EndSessionDialog = new Lang.Class({
        });
    },

-    _triggerOfflineUpdateCancel(callback) {
-        this._pkOfflineProxy.CancelRemote((result, error) => {
+    _triggerOfflineUpdateCancel: function(callback) {
+        this._pkOfflineProxy.CancelRemote(function (result, error) {
            if (error)
                log(error.message);

@ -577,31 +580,32 @@ var EndSessionDialog = new Lang.Class({
        });
    },

-    _startTimer() {
+    _startTimer: function() {
        let startTime = GLib.get_monotonic_time();
        this._secondsLeft = this._totalSecondsToStayOpen;

-        this._timerId = Mainloop.timeout_add_seconds(1, () => {
-            let currentTime = GLib.get_monotonic_time();
-            let secondsElapsed = ((currentTime - startTime) / 1000000);
+        this._timerId = Mainloop.timeout_add_seconds(1, Lang.bind(this,
+            function() {
+                let currentTime = GLib.get_monotonic_time();
+                let secondsElapsed = ((currentTime - startTime) / 1000000);

-            this._secondsLeft = this._totalSecondsToStayOpen - secondsElapsed;
-            if (this._secondsLeft > 0) {
-                this._sync();
-                return GLib.SOURCE_CONTINUE;
-            }
+                this._secondsLeft = this._totalSecondsToStayOpen - secondsElapsed;
+                if (this._secondsLeft > 0) {
+                    this._sync();
+                    return GLib.SOURCE_CONTINUE;
+                }

-            let dialogContent = DialogContent[this._type];
-            let button = dialogContent.confirmButtons[dialogContent.confirmButtons.length - 1];
-            this._confirm(button.signal);
-            this._timerId = 0;
+                let dialogContent = DialogContent[this._type];
+                let button = dialogContent.confirmButtons[dialogContent.confirmButtons.length - 1];
+                this._confirm(button.signal);
+                this._timerId = 0;

-            return GLib.SOURCE_REMOVE;
-        });
+                return GLib.SOURCE_REMOVE;
+            }));
        GLib.Source.set_name_by_id(this._timerId, '[gnome-shell] this._confirm');
    },

-    _stopTimer() {
+    _stopTimer: function() {
        if (this._timerId > 0) {
            Mainloop.source_remove(this._timerId);
            this._timerId = 0;
@ -610,7 +614,7 @@ var EndSessionDialog = new Lang.Class({
        this._secondsLeft = 0;
    },

-    _constructListItemForApp(inhibitor, app) {
+    _constructListItemForApp: function(inhibitor, app) {
        let actor = new St.BoxLayout({ style_class: 'end-session-dialog-app-list-item',
                                       can_focus: true });
        actor.add(app.create_icon_texture(_ITEM_ICON_SIZE));
@ -635,7 +639,7 @@ var EndSessionDialog = new Lang.Class({
        return actor;
    },

-    _onInhibitorLoaded(inhibitor) {
+    _onInhibitorLoaded: function(inhibitor) {
        if (this._applications.indexOf(inhibitor) < 0) {
            // Stale inhibitor
            return;
@ -654,7 +658,7 @@ var EndSessionDialog = new Lang.Class({
        this._sync();
    },

-    _constructListItemForSession(session) {
+    _constructListItemForSession: function(session) {
        let avatar = new UserWidget.Avatar(session.user, { iconSize: _ITEM_ICON_SIZE });
        avatar.update();

@ -684,8 +688,8 @@ var EndSessionDialog = new Lang.Class({
        return actor;
    },

-    _loadSessions() {
-        this._loginManager.listSessions(result => {
+    _loadSessions: function() {
+        this._loginManager.listSessions(Lang.bind(this, function(result) {
            let n = 0;
            for (let i = 0; i < result.length; i++) {
                let[id, uid, userName, seat, sessionPath] = result[i];
@ -697,14 +701,7 @@ var EndSessionDialog = new Lang.Class({
                if (proxy.State == 'closing')
                    continue;

-                let sessionId = GLib.getenv('XDG_SESSION_ID');
-                if (!sessionId)
-                    this._loginManager.getCurrentSessionProxy(currentSessionProxy => {
-                        sessionId = currentSessionProxy.Id;
-                        log(`endSessionDialog: No XDG_SESSION_ID, fetched from logind: ${sessionId}`);
-                    });
-
-                if (proxy.Id == sessionId)
+                if (proxy.Id == GLib.getenv('XDG_SESSION_ID'))
                    continue;

                let session = { user: this._userManager.get_user(userName),
@ -723,10 +720,10 @@ var EndSessionDialog = new Lang.Class({
            }

            this._sync();
-        });
+        }));
    },

-    OpenAsync(parameters, invocation) {
+    OpenAsync: function(parameters, invocation) {
        let [type, timestamp, totalSecondsToStayOpen, inhibitorObjectPaths] = parameters;
        this._totalSecondsToStayOpen = totalSecondsToStayOpen;
        this._type = type;
@ -753,9 +750,9 @@ var EndSessionDialog = new Lang.Class({
        let dialogContent = DialogContent[this._type];

        for (let i = 0; i < inhibitorObjectPaths.length; i++) {
-            let inhibitor = new GnomeSession.Inhibitor(inhibitorObjectPaths[i], (proxy, error) => {
+            let inhibitor = new GnomeSession.Inhibitor(inhibitorObjectPaths[i], Lang.bind(this, function(proxy, error) {
                this._onInhibitorLoaded(proxy);
-            });
+            }));

            this._applications.push(inhibitor);
        }
@ -790,13 +787,14 @@ var EndSessionDialog = new Lang.Class({

        this._sync();

-        let signalId = this.connect('opened', () => {
-            invocation.return_value(null);
-            this.disconnect(signalId);
-        });
+        let signalId = this.connect('opened',
+                                    Lang.bind(this, function() {
+                                        invocation.return_value(null);
+                                        this.disconnect(signalId);
+                                    }));
    },

-    Close(parameters, invocation) {
+    Close: function(parameters, invocation) {
        this.close();
    }
 });
--- a/js/ui/environment.js
+++ b/js/ui/environment.js
@ -47,14 +47,14 @@ function _patchContainerClass(containerClass) {
 function _patchLayoutClass(layoutClass, styleProps) {
    if (styleProps)
        layoutClass.prototype.hookup_style = function(container) {
-            container.connect('style-changed', () => {
+            container.connect('style-changed', Lang.bind(this, function() {
                let node = container.get_theme_node();
                for (let prop in styleProps) {
                    let [found, length] = node.lookup_length(styleProps[prop], false);
                    if (found)
                        this[prop] = length;
                }
-            });
+            }));
        };
    layoutClass.prototype.child_set = function(actor, props) {
        let meta = this.get_child_meta(actor.get_parent(), actor);
@ -88,7 +88,7 @@ function init() {
    window._ = Gettext.gettext;
    window.C_ = Gettext.pgettext;
    window.ngettext = Gettext.ngettext;
-    window.N_ = s => s;
+    window.N_ = function(s) { return s; };

    // Miscellaneous monkeypatching
    _patchContainerClass(St.BoxLayout);
--- a/js/ui/extensionDownloader.js
+++ b/js/ui/extensionDownloader.js
@ -30,7 +30,7 @@ function installExtension(uuid, invocation) {

    let message = Soup.form_request_new_from_hash('GET', REPOSITORY_URL_INFO, params);

-    _httpSession.queue_message(message, (session, message) => {
+    _httpSession.queue_message(message, function(session, message) {
        if (message.status_code != Soup.KnownStatusCode.OK) {
            ExtensionSystem.logExtensionError(uuid, 'downloading info: ' + message.status_code);
            invocation.return_dbus_error('org.gnome.Shell.DownloadInfoError', message.status_code.toString());
@ -96,7 +96,7 @@ function gotExtensionZipFile(session, message, uuid, dir, callback, errback) {
        return;
    }

-    GLib.child_watch_add(GLib.PRIORITY_DEFAULT, pid, (pid, status) => {
+    GLib.child_watch_add(GLib.PRIORITY_DEFAULT, pid, function(pid, status) {
        GLib.spawn_close_pid(pid);

        if (status != 0)
@ -119,8 +119,8 @@ function updateExtension(uuid) {
    let url = REPOSITORY_URL_DOWNLOAD.format(uuid);
    let message = Soup.form_request_new_from_hash('GET', url, params);

-    _httpSession.queue_message(message, (session, message) => {
-        gotExtensionZipFile(session, message, uuid, newExtensionTmpDir, () => {
+    _httpSession.queue_message(message, Lang.bind(this, function(session, message) {
+        gotExtensionZipFile(session, message, uuid, newExtensionTmpDir, function() {
            let oldExtension = ExtensionUtils.extensions[uuid];
            let extensionDir = oldExtension.dir;

@ -151,10 +151,10 @@ function updateExtension(uuid) {
            }

            FileUtils.recursivelyDeleteDir(oldExtensionTmpDir, true);
-        }, (code, message) => {
+        }, function(code, message) {
            log('Error while updating extension %s: %s (%s)'.format(uuid, code, message ? message : ''));
        });
-    });
+    }));
 }

 function checkForUpdates() {
@ -168,7 +168,7 @@ function checkForUpdates() {

    let url = REPOSITORY_URL_UPDATE;
    let message = Soup.form_request_new_from_hash('GET', url, params);
-    _httpSession.queue_message(message, (session, message) => {
+    _httpSession.queue_message(message, function(session, message) {
        if (message.status_code != Soup.KnownStatusCode.OK)
            return;

@ -187,7 +187,7 @@ var InstallExtensionDialog = new Lang.Class({
    Name: 'InstallExtensionDialog',
    Extends: ModalDialog.ModalDialog,

-    _init(uuid, info, invocation) {
+    _init: function(uuid, info, invocation) {
        this.parent({ styleClass: 'extension-dialog' });

        this._uuid = uuid;
@ -195,11 +195,11 @@ var InstallExtensionDialog = new Lang.Class({
        this._invocation = invocation;

        this.setButtons([{ label: _("Cancel"),
-                           action: this._onCancelButtonPressed.bind(this),
+                           action: Lang.bind(this, this._onCancelButtonPressed),
                           key:    Clutter.Escape
                         },
                         { label:  _("Install"),
-                           action: this._onInstallButtonPressed.bind(this),
+                           action: Lang.bind(this, this._onInstallButtonPressed),
                           default: true
                         }]);

@ -218,12 +218,12 @@ var InstallExtensionDialog = new Lang.Class({
        box.add(label);
    },

-    _onCancelButtonPressed(button, event) {
+    _onCancelButtonPressed: function(button, event) {
        this.close();
        this._invocation.return_value(GLib.Variant.new('(s)', ['cancelled']));
    },

-    _onInstallButtonPressed(button, event) {
+    _onInstallButtonPressed: function(button, event) {
        let params = { shell_version: Config.PACKAGE_VERSION };

        let url = REPOSITORY_URL_DOWNLOAD.format(this._uuid);
@ -258,9 +258,9 @@ var InstallExtensionDialog = new Lang.Class({
            invocation.return_value(GLib.Variant.new('(s)', ['successful']));
        }

-        _httpSession.queue_message(message, (session, message) => {
+        _httpSession.queue_message(message, Lang.bind(this, function(session, message) {
            gotExtensionZipFile(session, message, uuid, dir, callback, errback);
-        });
+        }));

        this.close();
    }
--- a/js/ui/extensionSystem.js
+++ b/js/ui/extensionSystem.js
@ -34,8 +34,8 @@ var extensionOrder = [];
 var _signals = {};
 Signals.addSignalMethods(_signals);

-var connect = _signals.connect.bind(_signals);
-var disconnect = _signals.disconnect.bind(_signals);
+var connect = Lang.bind(_signals, _signals.connect);
+var disconnect = Lang.bind(_signals, _signals.disconnect);

 const ENABLED_EXTENSIONS_KEY = 'enabled-extensions';
 const DISABLE_USER_EXTENSIONS_KEY = 'disable-user-extensions';
@ -273,17 +273,17 @@ function onEnabledExtensionsChanged() {

    // Find and enable all the newly enabled extensions: UUIDs found in the
    // new setting, but not in the old one.
-    newEnabledExtensions.filter(
-        uuid => !enabledExtensions.includes(uuid)
-    ).forEach(uuid => {
+    newEnabledExtensions.filter(function(uuid) {
+        return enabledExtensions.indexOf(uuid) == -1;
+    }).forEach(function(uuid) {
        enableExtension(uuid);
    });

    // Find and disable all the newly disabled extensions: UUIDs found in the
    // old setting, but not in the new one.
-    enabledExtensions.filter(
-        item => !newEnabledExtensions.includes(item)
-    ).forEach(uuid => {
+    enabledExtensions.filter(function(item) {
+        return newEnabledExtensions.indexOf(item) == -1;
+    }).forEach(function(uuid) {
        disableExtension(uuid);
    });

@ -300,7 +300,7 @@ function _onVersionValidationChanged() {
    enabledExtensions = getEnabledExtensions();

    if (Main.sessionMode.allowExtensions) {
-        enabledExtensions.forEach(uuid => {
+        enabledExtensions.forEach(function(uuid) {
            enableExtension(uuid);
        });
    }
@ -314,7 +314,7 @@ function _loadExtensions() {
    enabledExtensions = getEnabledExtensions();

    let finder = new ExtensionUtils.ExtensionFinder();
-    finder.connect('extension-found', (finder, extension) => {
+    finder.connect('extension-found', function(finder, extension) {
        loadExtension(extension);
    });
    finder.scanExtensions();
@ -328,7 +328,7 @@ function enableAllExtensions() {
        _loadExtensions();
        initted = true;
    } else {
-        enabledExtensions.forEach(uuid => {
+        enabledExtensions.forEach(function(uuid) {
            enableExtension(uuid);
        });
    }
@ -340,7 +340,7 @@ function disableAllExtensions() {
        return;

    if (initted) {
-        extensionOrder.slice().reverse().forEach(uuid => {
+        extensionOrder.slice().reverse().forEach(function(uuid) {
            disableExtension(uuid);
        });
    }
--- a/js/ui/focusCaretTracker.js
+++ b/js/ui/focusCaretTracker.js
@ -31,22 +31,22 @@ const STATECHANGED      = 'object:state-changed';
 var FocusCaretTracker = new Lang.Class({
    Name: 'FocusCaretTracker',

-    _init() {
-        this._atspiListener = Atspi.EventListener.new(this._onChanged.bind(this));
+    _init: function() {
+        this._atspiListener = Atspi.EventListener.new(Lang.bind(this, this._onChanged));

        this._atspiInited = false;
        this._focusListenerRegistered = false;
        this._caretListenerRegistered = false;
    },

-    _onChanged(event) {
+    _onChanged: function(event) {
        if (event.type.indexOf(STATECHANGED) == 0)
            this.emit('focus-changed', event);
        else if (event.type == CARETMOVED)
            this.emit('caret-moved', event);
    },

-    _initAtspi() {
+    _initAtspi: function() {
        if (!this._atspiInited && Atspi.init() == 0) {
            Atspi.set_timeout(250, 250);
            this._atspiInited = true;
@ -55,7 +55,7 @@ var FocusCaretTracker = new Lang.Class({
 	return this._atspiInited;
    },

-    registerFocusListener() {
+    registerFocusListener: function() {
        if (!this._initAtspi() || this._focusListenerRegistered)
            return;

@ -64,7 +64,7 @@ var FocusCaretTracker = new Lang.Class({
        this._focusListenerRegistered = true;
    },

-    registerCaretListener() {
+    registerCaretListener: function() {
        if (!this._initAtspi() || this._caretListenerRegistered)
            return;

@ -72,7 +72,7 @@ var FocusCaretTracker = new Lang.Class({
        this._caretListenerRegistered = true;
    },

-    deregisterFocusListener() {
+    deregisterFocusListener: function() {
        if (!this._focusListenerRegistered)
            return;

@ -81,7 +81,7 @@ var FocusCaretTracker = new Lang.Class({
        this._focusListenerRegistered = false;
    },

-    deregisterCaretListener() {
+    deregisterCaretListener: function() {
        if (!this._caretListenerRegistered)
            return;

--- a/js/ui/grabHelper.js
+++ b/js/ui/grabHelper.js
@ -49,7 +49,7 @@ function _popGrabHelper(grabHelper) {
 var GrabHelper = new Lang.Class({
    Name: 'GrabHelper',

-    _init(owner, params) {
+    _init: function(owner, params) {
        this._owner = owner;
        this._modalParams = params;

@ -66,10 +66,8 @@ var GrabHelper = new Lang.Class({
    //
    // Adds @actor to the set of actors that are allowed to process events
    // during a grab.
-    addActor(actor) {
-        actor.__grabHelperDestroyId = actor.connect('destroy', () => {
-            this.removeActor(actor);
-        });
+    addActor: function(actor) {
+        actor.__grabHelperDestroyId = actor.connect('destroy', Lang.bind(this, function() { this.removeActor(actor); }));
        this._actors.push(actor);
    },

@ -78,7 +76,7 @@ var GrabHelper = new Lang.Class({
    //
    // Removes @actor from the set of actors that are allowed to
    // process events during a grab.
-    removeActor(actor) {
+    removeActor: function(actor) {
        let index = this._actors.indexOf(actor);
        if (index != -1)
            this._actors.splice(index, 1);
@ -88,7 +86,7 @@ var GrabHelper = new Lang.Class({
        }
    },

-    _isWithinGrabbedActor(actor) {
+    _isWithinGrabbedActor: function(actor) {
        let currentActor = this.currentGrab.actor;
        while (actor) {
            if (this._actors.indexOf(actor) != -1)
@ -112,7 +110,7 @@ var GrabHelper = new Lang.Class({
        return this._grabStack;
    },

-    _findStackIndex(actor) {
+    _findStackIndex: function(actor) {
        if (!actor)
            return -1;

@ -123,7 +121,7 @@ var GrabHelper = new Lang.Class({
        return -1;
    },

-    _actorInGrabStack(actor) {
+    _actorInGrabStack: function(actor) {
        while (actor) {
            let idx = this._findStackIndex(actor);
            if (idx >= 0)
@ -133,7 +131,7 @@ var GrabHelper = new Lang.Class({
        return -1;
    },

-    isActorGrabbed(actor) {
+    isActorGrabbed: function(actor) {
        return this._findStackIndex(actor) >= 0;
    },

@ -168,7 +166,7 @@ var GrabHelper = new Lang.Class({
    // to that actor instead of navigating in @params.actor. This is for
    // use cases like menus, where we want to grab the menu actor, but keep
    // focus on the clicked on menu item.
-    grab(params) {
+    grab: function(params) {
        params = Params.parse(params, { actor: null,
                                        focus: null,
                                        onUngrab: null });
@ -197,7 +195,7 @@ var GrabHelper = new Lang.Class({
        return true;
    },

-    _takeModalGrab() {
+    _takeModalGrab: function() {
        let firstGrab = (this._modalCount == 0);
        if (firstGrab) {
            if (!Main.pushModal(this._owner, this._modalParams))
@ -210,7 +208,7 @@ var GrabHelper = new Lang.Class({
        return true;
    },

-    _releaseModalGrab() {
+    _releaseModalGrab: function() {
        this._modalCount--;
        if (this._modalCount > 0)
            return;
@ -229,7 +227,7 @@ var GrabHelper = new Lang.Class({
    // capture event handler returns false. This is designed for things
    // like the ComboBoxMenu that go away on press, but need to eat
    // the next release event.
-    ignoreRelease() {
+    ignoreRelease: function() {
        this._ignoreUntilRelease = true;
    },

@ -244,7 +242,7 @@ var GrabHelper = new Lang.Class({
    // popped until the grabbed actor is at the top of the grab stack.
    // The onUngrab callback for every grab is called for every popped
    // grab with the parameter %false.
-    ungrab(params) {
+    ungrab: function(params) {
        params = Params.parse(params, { actor: this.currentGrab.actor,
                                        isUser: false });

@ -276,7 +274,7 @@ var GrabHelper = new Lang.Class({
        }
    },

-    onCapturedEvent(event) {
+    onCapturedEvent: function(event) {
        let type = event.type();

        if (type == Clutter.EventType.KEY_PRESS &&
--- a/js/ui/ibusCandidatePopup.js
+++ b/js/ui/ibusCandidatePopup.js
@ -17,7 +17,7 @@ var DEFAULT_INDEX_LABELS = [ '1', '2', '3', '4', '5', '6', '7', '8',
 var CandidateArea = new Lang.Class({
    Name: 'CandidateArea',

-    _init() {
+    _init: function() {
        this.actor = new St.BoxLayout({ vertical: true,
                                        reactive: true,
                                        visible: false });
@ -34,13 +34,13 @@ var CandidateArea = new Lang.Class({
            this.actor.add(box);

            let j = i;
-            box.connect('button-release-event', (actor, event) => {
+            box.connect('button-release-event', Lang.bind(this, function(actor, event) {
                this.emit('candidate-clicked', j, event.get_button(), event.get_state());
                return Clutter.EVENT_PROPAGATE;
-            });
+            }));
        }

-        this.actor.connect('scroll-event', (actor, event) => {
+        this.actor.connect('scroll-event', Lang.bind(this, function(actor, event) {
            let direction = event.get_scroll_direction();
            switch(direction) {
            case Clutter.ScrollDirection.UP:
@ -51,7 +51,7 @@ var CandidateArea = new Lang.Class({
                break;
            };
            return Clutter.EVENT_PROPAGATE;
-        });
+        }));

        this._buttonBox = new St.BoxLayout({ style_class: 'candidate-page-button-box' });

@ -65,18 +65,18 @@ var CandidateArea = new Lang.Class({

        this.actor.add(this._buttonBox);

-        this._previousButton.connect('clicked', () => {
+        this._previousButton.connect('clicked', Lang.bind(this, function() {
            this.emit('previous-page');
-        });
-        this._nextButton.connect('clicked', () => {
+        }));
+        this._nextButton.connect('clicked', Lang.bind(this, function() {
            this.emit('next-page');
-        });
+        }));

        this._orientation = -1;
        this._cursorPosition = 0;
    },

-    setOrientation(orientation) {
+    setOrientation: function(orientation) {
        if (this._orientation == orientation)
            return;

@ -97,7 +97,7 @@ var CandidateArea = new Lang.Class({
        }
    },

-    setCandidates(indexes, candidates, cursorPosition, cursorVisible) {
+    setCandidates: function(indexes, candidates, cursorPosition, cursorVisible) {
        for (let i = 0; i < MAX_CANDIDATES_PER_PAGE; ++i) {
            let visible = i < candidates.length;
            let box = this._candidateBoxes[i];
@ -116,7 +116,7 @@ var CandidateArea = new Lang.Class({
            this._candidateBoxes[cursorPosition].add_style_pseudo_class('selected');
    },

-    updateButtons(wrapsAround, page, nPages) {
+    updateButtons: function(wrapsAround, page, nPages) {
        if (nPages < 2) {
            this._buttonBox.hide();
            return;
@ -131,7 +131,7 @@ Signals.addSignalMethods(CandidateArea.prototype);
 var CandidatePopup = new Lang.Class({
    Name: 'CandidatePopup',

-    _init() {
+    _init: function() {
        this._boxPointer = new BoxPointer.BoxPointer(St.Side.TOP);
        this._boxPointer.actor.visible = false;
        this._boxPointer.actor.style_class = 'candidate-popup-boxpointer';
@ -152,138 +152,150 @@ var CandidatePopup = new Lang.Class({
        this._candidateArea = new CandidateArea();
        box.add(this._candidateArea.actor);

-        this._candidateArea.connect('previous-page', () => {
+        this._candidateArea.connect('previous-page', Lang.bind(this, function() {
            this._panelService.page_up();
-        });
-        this._candidateArea.connect('next-page', () => {
+        }));
+        this._candidateArea.connect('next-page', Lang.bind(this, function() {
            this._panelService.page_down();
-        });
+        }));

-        this._candidateArea.connect('cursor-up', () => {
+        this._candidateArea.connect('cursor-up', Lang.bind(this, function() {
            this._panelService.cursor_up();
-        });
-        this._candidateArea.connect('cursor-down', () => {
+        }));
+        this._candidateArea.connect('cursor-down', Lang.bind(this, function() {
            this._panelService.cursor_down();
-        });
+        }));

-        this._candidateArea.connect('candidate-clicked', (area, index, button, state) => {
+        this._candidateArea.connect('candidate-clicked', Lang.bind(this, function(ca, index, button, state) {
            this._panelService.candidate_clicked(index, button, state);
-        });
+        }));

        this._panelService = null;
    },

-    setPanelService(panelService) {
+    setPanelService: function(panelService) {
        this._panelService = panelService;
        if (!panelService)
            return;

-        panelService.connect('set-cursor-location', (ps, x, y, w, h) => {
-            this._setDummyCursorGeometry(x, y, w, h);
-        });
+        panelService.connect('set-cursor-location',
+                             Lang.bind(this, function(ps, x, y, w, h) {
+                                 this._setDummyCursorGeometry(x, y, w, h);
+                             }));
        try {
-            panelService.connect('set-cursor-location-relative', (ps, x, y, w, h) => {
-                if (!global.display.focus_window)
-                    return;
-                let window = global.display.focus_window.get_compositor_private();
-                this._setDummyCursorGeometry(window.x + x, window.y + y, w, h);
-            });
+            panelService.connect('set-cursor-location-relative',
+                                 Lang.bind(this, function(ps, x, y, w, h) {
+                                     if (!global.display.focus_window)
+                                         return;
+                                     let window = global.display.focus_window.get_compositor_private();
+                                     this._setDummyCursorGeometry(window.x + x, window.y + y, w, h);
+                                 }));
        } catch(e) {
            // Only recent IBus versions have support for this signal
            // which is used for wayland clients. In order to work
            // with older IBus versions we can silently ignore the
            // signal's absence.
        }
-        panelService.connect('update-preedit-text', (ps, text, cursorPosition, visible) => {
-            this._preeditText.visible = visible;
-            this._updateVisibility();
+        panelService.connect('update-preedit-text',
+                             Lang.bind(this, function(ps, text, cursorPosition, visible) {
+                                 this._preeditText.visible = visible;
+                                 this._updateVisibility();

-            this._preeditText.text = text.get_text();
+                                 this._preeditText.text = text.get_text();

-            let attrs = text.get_attributes();
-            if (attrs)
-                this._setTextAttributes(this._preeditText.clutter_text,
-                                        attrs);
-        });
-        panelService.connect('show-preedit-text', ps => {
-            this._preeditText.show();
-            this._updateVisibility();
-        });
-        panelService.connect('hide-preedit-text', ps => {
-            this._preeditText.hide();
-            this._updateVisibility();
-        });
-        panelService.connect('update-auxiliary-text', (ps, text, visible) => {
-            this._auxText.visible = visible;
-            this._updateVisibility();
+                                 let attrs = text.get_attributes();
+                                 if (attrs)
+                                     this._setTextAttributes(this._preeditText.clutter_text,
+                                                             attrs);
+                             }));
+        panelService.connect('show-preedit-text',
+                             Lang.bind(this, function(ps) {
+                                 this._preeditText.show();
+                                 this._updateVisibility();
+                             }));
+        panelService.connect('hide-preedit-text',
+                             Lang.bind(this, function(ps) {
+                                 this._preeditText.hide();
+                                 this._updateVisibility();
+                             }));
+        panelService.connect('update-auxiliary-text',
+                             Lang.bind(this, function(ps, text, visible) {
+                                 this._auxText.visible = visible;
+                                 this._updateVisibility();

-            this._auxText.text = text.get_text();
-        });
-        panelService.connect('show-auxiliary-text', ps => {
-            this._auxText.show();
-            this._updateVisibility();
-        });
-        panelService.connect('hide-auxiliary-text', ps => {
-            this._auxText.hide();
-            this._updateVisibility();
-        });
-        panelService.connect('update-lookup-table', (ps, lookupTable, visible) => {
-            this._candidateArea.actor.visible = visible;
-            this._updateVisibility();
+                                 this._auxText.text = text.get_text();
+                             }));
+        panelService.connect('show-auxiliary-text',
+                             Lang.bind(this, function(ps) {
+                                 this._auxText.show();
+                                 this._updateVisibility();
+                             }));
+        panelService.connect('hide-auxiliary-text',
+                             Lang.bind(this, function(ps) {
+                                 this._auxText.hide();
+                                 this._updateVisibility();
+                             }));
+        panelService.connect('update-lookup-table',
+                             Lang.bind(this, function(ps, lookupTable, visible) {
+                                 this._candidateArea.actor.visible = visible;
+                                 this._updateVisibility();

-            let nCandidates = lookupTable.get_number_of_candidates();
-            let cursorPos = lookupTable.get_cursor_pos();
-            let pageSize = lookupTable.get_page_size();
-            let nPages = Math.ceil(nCandidates / pageSize);
-            let page = ((cursorPos == 0) ? 0 : Math.floor(cursorPos / pageSize));
-            let startIndex = page * pageSize;
-            let endIndex = Math.min((page + 1) * pageSize, nCandidates);
+                                 let nCandidates = lookupTable.get_number_of_candidates();
+                                 let cursorPos = lookupTable.get_cursor_pos();
+                                 let pageSize = lookupTable.get_page_size();
+                                 let nPages = Math.ceil(nCandidates / pageSize);
+                                 let page = ((cursorPos == 0) ? 0 : Math.floor(cursorPos / pageSize));
+                                 let startIndex = page * pageSize;
+                                 let endIndex = Math.min((page + 1) * pageSize, nCandidates);

-            let indexes = [];
-            let indexLabel;
-            for (let i = 0; indexLabel = lookupTable.get_label(i); ++i)
-                 indexes.push(indexLabel.get_text());
+                                 let indexes = [];
+                                 let indexLabel;
+                                 for (let i = 0; indexLabel = lookupTable.get_label(i); ++i)
+                                      indexes.push(indexLabel.get_text());

-            Main.keyboard.resetSuggestions();
+                                 Main.keyboard.resetSuggestions();

-            let candidates = [];
-            for (let i = startIndex; i < endIndex; ++i) {
-                candidates.push(lookupTable.get_candidate(i).get_text());
+                                 let candidates = [];
+                                 for (let i = startIndex; i < endIndex; ++i) {
+                                     candidates.push(lookupTable.get_candidate(i).get_text());

-                Main.keyboard.addSuggestion(lookupTable.get_candidate(i).get_text(), () => {
-                    let index = i;
-                    this._panelService.candidate_clicked(index, 1, 0);
-                });
-            }
+                                     Main.keyboard.addSuggestion(lookupTable.get_candidate(i).get_text(), Lang.bind(this, function() {
+                                         let index = i;
+                                         this._panelService.candidate_clicked(index, 1, 0);
+                                     }));
+                                 }

-            this._candidateArea.setCandidates(indexes,
-                                              candidates,
-                                              cursorPos % pageSize,
-                                              lookupTable.is_cursor_visible());
-            this._candidateArea.setOrientation(lookupTable.get_orientation());
-            this._candidateArea.updateButtons(lookupTable.is_round(), page, nPages);
-        });
-        panelService.connect('show-lookup-table', ps => {
-            this._candidateArea.actor.show();
-            this._updateVisibility();
-        });
-        panelService.connect('hide-lookup-table', ps => {
-            this._candidateArea.actor.hide();
-            this._updateVisibility();
-        });
-        panelService.connect('focus-out', ps => {
-            this._boxPointer.hide(BoxPointer.PopupAnimation.NONE);
-            Main.keyboard.resetSuggestions();
-        });
+                                 this._candidateArea.setCandidates(indexes,
+                                                                   candidates,
+                                                                   cursorPos % pageSize,
+                                                                   lookupTable.is_cursor_visible());
+                                 this._candidateArea.setOrientation(lookupTable.get_orientation());
+                                 this._candidateArea.updateButtons(lookupTable.is_round(), page, nPages);
+                             }));
+        panelService.connect('show-lookup-table',
+                             Lang.bind(this, function(ps) {
+                                 this._candidateArea.actor.show();
+                                 this._updateVisibility();
+                             }));
+        panelService.connect('hide-lookup-table',
+                             Lang.bind(this, function(ps) {
+                                 this._candidateArea.actor.hide();
+                                 this._updateVisibility();
+                             }));
+        panelService.connect('focus-out',
+                             Lang.bind(this, function(ps) {
+                                 this._boxPointer.hide(BoxPointer.PopupAnimation.NONE);
+                                 Main.keyboard.resetSuggestions();
+                             }));
    },

-    _setDummyCursorGeometry(x, y, w, h) {
+    _setDummyCursorGeometry: function(x, y, w, h) {
        Main.layoutManager.setDummyCursorGeometry(x, y, w, h);
        if (this._boxPointer.actor.visible)
            this._boxPointer.setPosition(Main.layoutManager.dummyCursor, 0);
    },

-    _updateVisibility() {
+    _updateVisibility: function() {
        let isVisible = (!Main.keyboard.visible &&
                         (this._preeditText.visible ||
                          this._auxText.visible ||
@ -298,7 +310,7 @@ var CandidatePopup = new Lang.Class({
        }
    },

-    _setTextAttributes(clutterText, ibusAttrList) {
+    _setTextAttributes: function(clutterText, ibusAttrList) {
        let attr;
        for (let i = 0; attr = ibusAttrList.get(i); ++i)
            if (attr.get_attr_type() == IBus.AttrType.BACKGROUND)
--- a/js/ui/iconGrid.js
+++ b/js/ui/iconGrid.js
@ -37,7 +37,7 @@ var APPICON_ANIMATION_OUT_TIME = 0.25;
 var BaseIcon = new Lang.Class({
    Name: 'BaseIcon',

-    _init(label, params) {
+    _init : function(label, params) {
        params = Params.parse(params, { createIcon: null,
                                        setSizeManually: false,
                                        showLabel: true });
@ -50,17 +50,19 @@ var BaseIcon = new Lang.Class({
                                  x_fill: true,
                                  y_fill: true });
        this.actor._delegate = this;
-        this.actor.connect('style-changed', this._onStyleChanged.bind(this));
-        this.actor.connect('destroy', this._onDestroy.bind(this));
+        this.actor.connect('style-changed',
+                           Lang.bind(this, this._onStyleChanged));
+        this.actor.connect('destroy',
+                           Lang.bind(this, this._onDestroy));

        this._spacing = 0;

        let box = new Shell.GenericContainer();
-        box.connect('allocate', this._allocate.bind(this));
+        box.connect('allocate', Lang.bind(this, this._allocate));
        box.connect('get-preferred-width',
-                    this._getPreferredWidth.bind(this));
+                    Lang.bind(this, this._getPreferredWidth));
        box.connect('get-preferred-height',
-                    this._getPreferredHeight.bind(this));
+                    Lang.bind(this, this._getPreferredHeight));
        this.actor.set_child(box);

        this.iconSize = ICON_SIZE;
@ -83,10 +85,10 @@ var BaseIcon = new Lang.Class({
        this.icon = null;

        let cache = St.TextureCache.get_default();
-        this._iconThemeChangedId = cache.connect('icon-theme-changed', this._onIconThemeChanged.bind(this));
+        this._iconThemeChangedId = cache.connect('icon-theme-changed', Lang.bind(this, this._onIconThemeChanged));
    },

-    _allocate(actor, box, flags) {
+    _allocate: function(actor, box, flags) {
        let availWidth = box.x2 - box.x1;
        let availHeight = box.y2 - box.y1;

@ -120,11 +122,11 @@ var BaseIcon = new Lang.Class({
        this._iconBin.allocate(childBox, flags);
    },

-    _getPreferredWidth(actor, forHeight, alloc) {
+    _getPreferredWidth: function(actor, forHeight, alloc) {
        this._getPreferredHeight(actor, -1, alloc);
    },

-    _getPreferredHeight(actor, forWidth, alloc) {
+    _getPreferredHeight: function(actor, forWidth, alloc) {
        let [iconMinHeight, iconNatHeight] = this._iconBin.get_preferred_height(forWidth);
        alloc.min_size = iconMinHeight;
        alloc.natural_size = iconNatHeight;
@ -138,11 +140,11 @@ var BaseIcon = new Lang.Class({

    // This can be overridden by a subclass, or by the createIcon
    // parameter to _init()
-    createIcon(size) {
+    createIcon: function(size) {
        throw new Error('no implementation of createIcon in ' + this);
    },

-    setIconSize(size) {
+    setIconSize: function(size) {
        if (!this._setSizeManually)
            throw new Error('setSizeManually has to be set to use setIconsize');

@ -152,7 +154,7 @@ var BaseIcon = new Lang.Class({
        this._createIconTexture(size);
    },

-    _createIconTexture(size) {
+    _createIconTexture: function(size) {
        if (this.icon)
            this.icon.destroy();
        this.iconSize = size;
@ -161,7 +163,7 @@ var BaseIcon = new Lang.Class({
        this._iconBin.child = this.icon;
    },

-    _onStyleChanged() {
+    _onStyleChanged: function() {
        let node = this.actor.get_theme_node();
        this._spacing = node.get_length('spacing');

@ -179,7 +181,7 @@ var BaseIcon = new Lang.Class({
        this._createIconTexture(size);
    },

-    _onDestroy() {
+    _onDestroy: function() {
        if (this._iconThemeChangedId > 0) {
            let cache = St.TextureCache.get_default();
            cache.disconnect(this._iconThemeChangedId);
@ -187,11 +189,11 @@ var BaseIcon = new Lang.Class({
        }
    },

-    _onIconThemeChanged() {
+    _onIconThemeChanged: function() {
        this._createIconTexture(this.iconSize);
    },

-    animateZoomOut() {
+    animateZoomOut: function() {
        // Animate only the child instead of the entire actor, so the
        // styles like hover and running are not applied while
        // animating.
@ -232,7 +234,7 @@ function zoomOutActor(actor) {
                       translation_y: containedY - scaledY,
                       opacity: 0,
                       transition: 'easeOutQuad',
-                       onComplete() {
+                       onComplete: function() {
                           actorClone.destroy();
                       }
                    });
@ -241,7 +243,7 @@ function zoomOutActor(actor) {
 var IconGrid = new Lang.Class({
    Name: 'IconGrid',

-    _init(params) {
+    _init: function(params) {
        params = Params.parse(params, { rowLimit: null,
                                        columnLimit: null,
                                        minRows: 1,
@ -272,7 +274,7 @@ var IconGrid = new Lang.Class({
        this._fixedHItemSize = this._fixedVItemSize = undefined;
        this._grid = new Shell.GenericContainer();
        this.actor.add(this._grid, { expand: true, y_align: St.Align.START });
-        this.actor.connect('style-changed', this._onStyleChanged.bind(this));
+        this.actor.connect('style-changed', Lang.bind(this, this._onStyleChanged));

        // Cancel animations when hiding the overview, to avoid icons
        // swarming into the void ...
@ -281,26 +283,26 @@ var IconGrid = new Lang.Class({
                this._cancelAnimation();
        });

-        this._grid.connect('get-preferred-width', this._getPreferredWidth.bind(this));
-        this._grid.connect('get-preferred-height', this._getPreferredHeight.bind(this));
-        this._grid.connect('allocate', this._allocate.bind(this));
-        this._grid.connect('actor-added', this._childAdded.bind(this));
-        this._grid.connect('actor-removed', this._childRemoved.bind(this));
+        this._grid.connect('get-preferred-width', Lang.bind(this, this._getPreferredWidth));
+        this._grid.connect('get-preferred-height', Lang.bind(this, this._getPreferredHeight));
+        this._grid.connect('allocate', Lang.bind(this, this._allocate));
+        this._grid.connect('actor-added', Lang.bind(this, this._childAdded));
+        this._grid.connect('actor-removed', Lang.bind(this, this._childRemoved));
    },

-    _keyFocusIn(actor) {
+    _keyFocusIn: function(actor) {
        this.emit('key-focus-in', actor);
    },

-    _childAdded(grid, child) {
-        child._iconGridKeyFocusInId = child.connect('key-focus-in', this._keyFocusIn.bind(this));
+    _childAdded: function(grid, child) {
+        child._iconGridKeyFocusInId = child.connect('key-focus-in', Lang.bind(this, this._keyFocusIn));
    },

-    _childRemoved(grid, child) {
+    _childRemoved: function(grid, child) {
        child.disconnect(child._iconGridKeyFocusInId);
    },

-    _getPreferredWidth(grid, forHeight, alloc) {
+    _getPreferredWidth: function (grid, forHeight, alloc) {
        if (this._fillParent)
            // Ignore all size requests of children and request a size of 0;
            // later we'll allocate as many children as fit the parent
@ -318,11 +320,15 @@ var IconGrid = new Lang.Class({
        alloc.natural_size = nColumns * this._getHItemSize() + totalSpacing + this.leftPadding + this.rightPadding;
    },

-    _getVisibleChildren() {
-        return this._grid.get_children().filter(actor => actor.visible);
+    _getVisibleChildren: function() {
+        let children = this._grid.get_children();
+        children = children.filter(function(actor) {
+            return actor.visible;
+        });
+        return children;
    },

-    _getPreferredHeight(grid, forWidth, alloc) {
+    _getPreferredHeight: function (grid, forWidth, alloc) {
        if (this._fillParent)
            // Ignore all size requests of children and request a size of 0;
            // later we'll allocate as many children as fit the parent
@ -348,7 +354,7 @@ var IconGrid = new Lang.Class({
        alloc.natural_size = height;
    },

-    _allocate(grid, box, flags) {
+    _allocate: function (grid, box, flags) {
        if (this._fillParent) {
            // Reset the passed in box to fill the parent
            let parentBox = this.actor.get_parent().allocation;
@ -408,21 +414,21 @@ var IconGrid = new Lang.Class({
     * Intended to be override by subclasses if they need a different
     * set of items to be animated.
     */
-    _getChildrenToAnimate() {
+    _getChildrenToAnimate: function() {
        return this._getVisibleChildren();
    },

-    _cancelAnimation() {
+    _cancelAnimation: function() {
        this._clonesAnimating.forEach(clone => { clone.destroy(); });
        this._clonesAnimating = [];
    },

-    _animationDone() {
+    _animationDone: function() {
        this._clonesAnimating = [];
        this.emit('animation-done');
    },

-    animatePulse(animationDirection) {
+    animatePulse: function(animationDirection) {
        if (animationDirection != AnimationDirection.IN)
            throw new Error("Pulse animation only implements 'in' animation direction");

@ -456,24 +462,24 @@ var IconGrid = new Lang.Class({
                              delay: delay,
                              scale_x: ANIMATION_BOUNCE_ICON_SCALE,
                              scale_y: ANIMATION_BOUNCE_ICON_SCALE,
-                              onComplete: () => {
+                              onComplete: Lang.bind(this, function() {
                                  Tweener.addTween(actor,
                                                   { time: ANIMATION_TIME_IN - bounceUpTime,
                                                     transition: 'easeInOutQuad',
                                                     scale_x: 1,
                                                     scale_y: 1,
-                                                     onComplete: () => {
+                                                     onComplete: Lang.bind(this, function() {
                                                        if (isLastItem)
                                                            this._animationDone();
                                                        actor.reactive = true;
-                                                    }
+                                                    })
                                                   });
-                              }
+                              })
                            });
        }
    },

-    animateSpring(animationDirection, sourceActor) {
+    animateSpring: function(animationDirection, sourceActor) {
        this._cancelAnimation();

        let actors = this._getChildrenToAnimate();
@ -489,15 +495,15 @@ var IconGrid = new Lang.Class({
        // Design decision, 1/2 of the source actor size.
        let [sourceScaledWidth, sourceScaledHeight] = [sourceWidth / 2, sourceHeight / 2];

-        actors.forEach(actor => {
+        actors.forEach(function(actor) {
            let [actorX, actorY] = actor._transformedPosition = actor.get_transformed_position();
            let [x, y] = [actorX - sourceX, actorY - sourceY];
            actor._distance = Math.sqrt(x * x + y * y);
        });
-        let maxDist = actors.reduce((prev, cur) => {
+        let maxDist = actors.reduce(function(prev, cur) {
            return Math.max(prev, cur._distance);
        }, 0);
-        let minDist = actors.reduce((prev, cur) => {
+        let minDist = actors.reduce(function(prev, cur) {
            return Math.min(prev, cur._distance);
        }, Infinity);
        let normalization = maxDist - minDist;
@ -535,14 +541,14 @@ var IconGrid = new Lang.Class({
                                   y: finalY,
                                   scale_x: 1,
                                   scale_y: 1,
-                                   onComplete: () => {
+                                   onComplete: Lang.bind(this, function() {
                                       if (isLastItem)
                                           this._animationDone();

                                       actor.opacity = 255;
                                       actor.reactive = true;
                                       actorClone.destroy();
-                                   }};
+                                   })};
                fadeParams = { time: ANIMATION_FADE_IN_TIME_FOR_ITEM,
                               transition: 'easeInOutQuad',
                               delay: delay,
@ -561,14 +567,14 @@ var IconGrid = new Lang.Class({
                                   y: adjustedSourcePositionY,
                                   scale_x: scaleX,
                                   scale_y: scaleY,
-                                   onComplete: () => {
+                                   onComplete: Lang.bind(this, function() {
                                       if (isLastItem) {
                                           this._animationDone();
                                           this._restoreItemsOpacity();
                                       }
                                       actor.reactive = true;
                                       actorClone.destroy();
-                                   }};
+                                   })};
                fadeParams = { time: ANIMATION_FADE_IN_TIME_FOR_ITEM,
                               transition: 'easeInOutQuad',
                               delay: ANIMATION_TIME_OUT + delay - ANIMATION_FADE_IN_TIME_FOR_ITEM,
@ -581,13 +587,13 @@ var IconGrid = new Lang.Class({
        }
    },

-    _restoreItemsOpacity() {
+    _restoreItemsOpacity: function() {
        for (let index = 0; index < this._items.length; index++) {
            this._items[index].actor.opacity = 255;
        }
    },

-    _getAllocatedChildSizeAndSpacing(child) {
+    _getAllocatedChildSizeAndSpacing: function(child) {
        let [,, natWidth, natHeight] = child.get_preferred_size();
        let width = Math.min(this._getHItemSize(), natWidth);
        let xSpacing = Math.max(0, width - natWidth) / 2;
@ -596,7 +602,7 @@ var IconGrid = new Lang.Class({
        return [width, height, xSpacing, ySpacing];
    },

-    _calculateChildBox(child, x, y, box) {
+    _calculateChildBox: function(child, x, y, box) {
        /* Center the item in its allocation horizontally */
        let [width, height, childXSpacing, childYSpacing] =
            this._getAllocatedChildSizeAndSpacing(child);
@ -614,15 +620,15 @@ var IconGrid = new Lang.Class({
        return childBox;
    },

-    columnsForWidth(rowWidth) {
+    columnsForWidth: function(rowWidth) {
        return this._computeLayout(rowWidth)[0];
    },

-    getRowLimit() {
+    getRowLimit: function() {
        return this._rowLimit;
    },

-    _computeLayout(forWidth) {
+    _computeLayout: function (forWidth) {
        let nColumns = 0;
        let usedWidth = this.leftPadding + this.rightPadding;
        let spacing = this._getSpacing();
@ -639,7 +645,7 @@ var IconGrid = new Lang.Class({
        return [nColumns, usedWidth];
    },

-    _onStyleChanged() {
+    _onStyleChanged: function() {
        let themeNode = this.actor.get_theme_node();
        this._spacing = themeNode.get_length('spacing');
        this._hItemSize = themeNode.get_length('-shell-grid-horizontal-item-size') || ICON_SIZE;
@ -647,7 +653,7 @@ var IconGrid = new Lang.Class({
        this._grid.queue_relayout();
    },

-    nRows(forWidth) {
+    nRows: function(forWidth) {
        let children = this._getVisibleChildren();
        let nColumns = (forWidth < 0) ? children.length : this._computeLayout(forWidth)[0];
        let nRows = (nColumns > 0) ? Math.ceil(children.length / nColumns) : 0;
@ -656,35 +662,35 @@ var IconGrid = new Lang.Class({
        return nRows;
    },

-    rowsForHeight(forHeight) {
+    rowsForHeight: function(forHeight) {
        return Math.floor((forHeight - (this.topPadding + this.bottomPadding) + this._getSpacing()) / (this._getVItemSize() + this._getSpacing()));
    },

-    usedHeightForNRows(nRows) {
+    usedHeightForNRows: function(nRows) {
        return (this._getVItemSize() + this._getSpacing()) * nRows - this._getSpacing() + this.topPadding + this.bottomPadding;
    },

-    usedWidth(forWidth) {
+    usedWidth: function(forWidth) {
        return this.usedWidthForNColumns(this.columnsForWidth(forWidth));
    },

-    usedWidthForNColumns(columns) {
+    usedWidthForNColumns: function(columns) {
        let usedWidth = columns  * (this._getHItemSize() + this._getSpacing());
        usedWidth -= this._getSpacing();
        return usedWidth + this.leftPadding + this.rightPadding;
    },

-    removeAll() {
+    removeAll: function() {
        this._items = [];
        this._grid.remove_all_children();
    },

-    destroyAll() {
+    destroyAll: function() {
        this._items = [];
        this._grid.destroy_all_children();
    },

-    addItem(item, index) {
+    addItem: function(item, index) {
        if (!item.icon instanceof BaseIcon)
            throw new Error('Only items with a BaseIcon icon property can be added to IconGrid');

@ -695,35 +701,35 @@ var IconGrid = new Lang.Class({
            this._grid.add_actor(item.actor);
    },

-    removeItem(item) {
+    removeItem: function(item) {
        this._grid.remove_child(item.actor);
    },

-    getItemAtIndex(index) {
+    getItemAtIndex: function(index) {
        return this._grid.get_child_at_index(index);
    },

-    visibleItemsCount() {
+    visibleItemsCount: function() {
        return this._grid.get_n_children() - this._grid.get_n_skip_paint();
    },

-    setSpacing(spacing) {
+    setSpacing: function(spacing) {
        this._fixedSpacing = spacing;
    },

-    _getSpacing() {
+    _getSpacing: function() {
        return this._fixedSpacing ? this._fixedSpacing : this._spacing;
    },

-    _getHItemSize() {
+    _getHItemSize: function() {
        return this._fixedHItemSize ? this._fixedHItemSize : this._hItemSize;
    },

-    _getVItemSize() {
+    _getVItemSize: function() {
        return this._fixedVItemSize ? this._fixedVItemSize : this._vItemSize;
    },

-    _updateSpacingForSize(availWidth, availHeight) {
+    _updateSpacingForSize: function(availWidth, availHeight) {
        let maxEmptyVArea = availHeight - this._minRows * this._getVItemSize();
        let maxEmptyHArea = availWidth - this._minColumns * this._getHItemSize();
        let maxHSpacing, maxVSpacing;
@ -760,7 +766,7 @@ var IconGrid = new Lang.Class({
     * This function must to be called before iconGrid allocation,
     * to know how much spacing can the grid has
     */
-    adaptToSize(availWidth, availHeight) {
+    adaptToSize: function(availWidth, availHeight) {
        this._fixedHItemSize = this._hItemSize;
        this._fixedVItemSize = this._vItemSize;
        this._updateSpacingForSize(availWidth, availHeight);
@ -778,11 +784,11 @@ var IconGrid = new Lang.Class({
            this._updateSpacingForSize(availWidth, availHeight);
        }
        Meta.later_add(Meta.LaterType.BEFORE_REDRAW,
-                       this._updateIconSizes.bind(this));
+                       Lang.bind(this, this._updateIconSizes));
    },

    // Note that this is ICON_SIZE as used by BaseIcon, not elsewhere in IconGrid; it's a bit messed up
-    _updateIconSizes() {
+    _updateIconSizes: function() {
        let scale = Math.min(this._fixedHItemSize, this._fixedVItemSize) / Math.max(this._hItemSize, this._vItemSize);
        let newIconSize = Math.floor(ICON_SIZE * scale);
        for (let i in this._items) {
@ -796,7 +802,7 @@ var PaginatedIconGrid = new Lang.Class({
    Name: 'PaginatedIconGrid',
    Extends: IconGrid,

-    _init(params) {
+    _init: function(params) {
        this.parent(params);
        this._nPages = 0;
        this.currentPage = 0;
@ -805,12 +811,12 @@ var PaginatedIconGrid = new Lang.Class({
        this._childrenPerPage = 0;
    },

-    _getPreferredHeight(grid, forWidth, alloc) {
+    _getPreferredHeight: function (grid, forWidth, alloc) {
        alloc.min_size = (this._availableHeightPerPageForItems() + this.bottomPadding + this.topPadding) * this._nPages + this._spaceBetweenPages * this._nPages;
        alloc.natural_size = (this._availableHeightPerPageForItems() + this.bottomPadding + this.topPadding) * this._nPages + this._spaceBetweenPages * this._nPages;
    },

-    _allocate(grid, box, flags) {
+    _allocate: function (grid, box, flags) {
         if (this._childrenPerPage == 0)
            log('computePages() must be called before allocate(); pagination will not work.');

@ -864,7 +870,7 @@ var PaginatedIconGrid = new Lang.Class({
    },

    // Overriden from IconGrid
-    _getChildrenToAnimate() {
+    _getChildrenToAnimate: function() {
        let children = this._getVisibleChildren();
        let firstIndex = this._childrenPerPage * this.currentPage;
        let lastIndex = firstIndex + this._childrenPerPage;
@ -872,7 +878,7 @@ var PaginatedIconGrid = new Lang.Class({
        return children.slice(firstIndex, lastIndex);
    },

-    _computePages(availWidthPerPage, availHeightPerPage) {
+    _computePages: function (availWidthPerPage, availHeightPerPage) {
        let [nColumns, usedWidth] = this._computeLayout(availWidthPerPage);
        let nRows;
        let children = this._getVisibleChildren();
@ -891,24 +897,24 @@ var PaginatedIconGrid = new Lang.Class({
        this._childrenPerPage = nColumns * this._rowsPerPage;
    },

-    adaptToSize(availWidth, availHeight) {
+    adaptToSize: function(availWidth, availHeight) {
        this.parent(availWidth, availHeight);
        this._computePages(availWidth, availHeight);
    },

-    _availableHeightPerPageForItems() {
+    _availableHeightPerPageForItems: function() {
        return this.usedHeightForNRows(this._rowsPerPage) - (this.topPadding + this.bottomPadding);
    },

-    nPages() {
+    nPages: function() {
        return this._nPages;
    },

-    getPageHeight() {
+    getPageHeight: function() {
        return this._availableHeightPerPageForItems();
    },

-    getPageY(pageNumber) {
+    getPageY: function(pageNumber) {
        if (!this._nPages)
            return 0;

@ -917,7 +923,7 @@ var PaginatedIconGrid = new Lang.Class({
        return childBox.y1 - this.topPadding;
    },

-    getItemPage(item) {
+    getItemPage: function(item) {
        let children = this._getVisibleChildren();
        let index = children.indexOf(item);
        if (index == -1) {
@ -935,7 +941,7 @@ var PaginatedIconGrid = new Lang.Class({
    *
    * Pan view to create extra space for @nRows above or below @sourceItem.
    */
-    openExtraSpace(sourceItem, side, nRows) {
+    openExtraSpace: function(sourceItem, side, nRows) {
        let children = this._getVisibleChildren();
        let index = children.indexOf(sourceItem.actor);
        if (index == -1) {
@ -979,7 +985,7 @@ var PaginatedIconGrid = new Lang.Class({
        }
    },

-    _translateChildren(children, direction, nRows) {
+    _translateChildren: function(children, direction, nRows) {
        let translationY = nRows * (this._getVItemSize() + this._getSpacing());
        if (translationY == 0)
            return;
@ -994,12 +1000,15 @@ var PaginatedIconGrid = new Lang.Class({
                           transition: 'easeInOutQuad'
                         };
            if (i == (children.length - 1))
-                params.onComplete = () => { this.emit('space-opened'); };
+                params.onComplete = Lang.bind(this,
+                    function() {
+                        this.emit('space-opened');
+                    });
            Tweener.addTween(children[i], params);
        }
    },

-    closeExtraSpace() {
+    closeExtraSpace: function() {
        if (!this._translatedChildren || !this._translatedChildren.length) {
            this.emit('space-closed');
            return;
@ -1012,7 +1021,10 @@ var PaginatedIconGrid = new Lang.Class({
                             { translation_y: 0,
                               time: EXTRA_SPACE_ANIMATION_TIME,
                               transition: 'easeInOutQuad',
-                               onComplete: () => { this.emit('space-closed'); }
+                               onComplete: Lang.bind(this,
+                                   function() {
+                                       this.emit('space-closed');
+                                   })
                             });
        }
    }
--- a/js/ui/inhibitShortcutsDialog.js
+++ b/js/ui/inhibitShortcutsDialog.js
@ -24,7 +24,7 @@ var InhibitShortcutsDialog = new Lang.Class({
        'window': GObject.ParamSpec.override('window', Meta.InhibitShortcutsDialog)
    },

-    _init(window) {
+    _init: function(window) {
        this.parent();
        this._window = window;

@ -45,14 +45,14 @@ var InhibitShortcutsDialog = new Lang.Class({
        return windowTracker.get_window_app(this._window);
    },

-    _getRestoreAccel() {
+    _getRestoreAccel: function() {
        let settings = new Gio.Settings({ schema_id: WAYLAND_KEYBINDINGS_SCHEMA });
        let accel = settings.get_strv('restore-shortcuts')[0] || '';
        return Gtk.accelerator_get_label.apply(null,
                                               Gtk.accelerator_parse(accel));
    },

-    _buildLayout() {
+    _buildLayout: function() {
        let name = this._app ? this._app.get_name() : this._window.title;

        /* Translators: %s is an application name like "Settings" */
@ -84,19 +84,19 @@ var InhibitShortcutsDialog = new Lang.Class({
                                 default: true });
    },

-    _emitResponse(response) {
+    _emitResponse: function(response) {
        this.emit('response', response);
        this._dialog.close();
    },

-    vfunc_show() {
+    vfunc_show: function() {
        if (this._app && APP_WHITELIST.indexOf(this._app.get_id()) != -1)
            this._emitResponse(DialogResponse.ALLOW);
        else
            this._dialog.open();
    },

-    vfunc_hide() {
+    vfunc_hide: function() {
        this._dialog.close();
    }
 });
--- a/js/ui/kbdA11yDialog.js
+++ b/js/ui/kbdA11yDialog.js
@ -13,15 +13,15 @@ var KbdA11yDialog = new Lang.Class({
    Name: 'KbdA11yDialog',
    Extends: GObject.Object,

-    _init() {
+    _init: function() {
        this._a11ySettings = new Gio.Settings({ schema_id: KEYBOARD_A11Y_SCHEMA });

        let deviceManager = Clutter.DeviceManager.get_default();
        deviceManager.connect('kbd-a11y-flags-changed',
-                              this._showKbdA11yDialog.bind(this));
+                              Lang.bind(this, this._showKbdA11yDialog));
    },

-    _showKbdA11yDialog(deviceManager, newFlags, whatChanged) {
+    _showKbdA11yDialog: function(deviceManager, newFlags, whatChanged) {
        let dialog = new ModalDialog.ModalDialog();
        let title, body;
        let key, enabled;
--- a/js/ui/keyboard.js
+++ b/js/ui/keyboard.js
--- a/js/ui/layout.js
+++ b/js/ui/layout.js
@ -52,7 +52,7 @@ var MonitorConstraint = new Lang.Class({
                                                        GObject.ParamFlags.READABLE | GObject.ParamFlags.WRITABLE,
                                                        false)},

-    _init(props) {
+    _init: function(props) {
        this._primary = false;
        this._index = -1;
        this._workArea = false;
@ -98,21 +98,19 @@ var MonitorConstraint = new Lang.Class({
        this.notify('work-area');
    },

-    vfunc_set_actor(actor) {
+    vfunc_set_actor: function(actor) {
        if (actor) {
            if (!this._monitorsChangedId) {
-                this._monitorsChangedId =
-                    Main.layoutManager.connect('monitors-changed', () => {
-                        this.actor.queue_relayout();
-                    });
+                this._monitorsChangedId = Main.layoutManager.connect('monitors-changed', Lang.bind(this, function() {
+                    this.actor.queue_relayout();
+                }));
            }

            if (!this._workareasChangedId) {
-                this._workareasChangedId =
-                    global.display.connect('workareas-changed', () => {
-                        if (this._workArea)
-                            this.actor.queue_relayout();
-                    });
+                this._workareasChangedId = global.screen.connect('workareas-changed', Lang.bind(this, function() {
+                    if (this._workArea)
+                        this.actor.queue_relayout();
+                }));
            }
        } else {
            if (this._monitorsChangedId)
@ -120,14 +118,14 @@ var MonitorConstraint = new Lang.Class({
            this._monitorsChangedId = 0;

            if (this._workareasChangedId)
-                global.display.disconnect(this._workareasChangedId);
+                global.screen.disconnect(this._workareasChangedId);
            this._workareasChangedId = 0;
        }

        this.parent(actor);
    },

-    vfunc_update_allocation(actor, actorBox) {
+    vfunc_update_allocation: function(actor, actorBox) {
        if (!this._primary && this._index < 0)
            return;

@ -142,8 +140,7 @@ var MonitorConstraint = new Lang.Class({

        let rect;
        if (this._workArea) {
-            let workspaceManager = global.workspace_manager;
-            let ws = workspaceManager.get_workspace_by_index(0);
+            let ws = global.screen.get_workspace_by_index(0);
            rect = ws.get_work_area_for_monitor(index);
        } else {
            rect = Main.layoutManager.monitors[index];
@ -156,7 +153,7 @@ var MonitorConstraint = new Lang.Class({
 var Monitor = new Lang.Class({
    Name: 'Monitor',

-    _init(index, geometry) {
+    _init: function(index, geometry) {
        this.index = index;
        this.x = geometry.x;
        this.y = geometry.y;
@ -165,7 +162,7 @@ var Monitor = new Lang.Class({
    },

    get inFullscreen() {
-        return global.display.get_monitor_in_fullscreen(this.index);
+        return global.screen.get_monitor_in_fullscreen(this.index);
    }
 })

@ -178,7 +175,7 @@ const defaultParams = {
 var LayoutManager = new Lang.Class({
    Name: 'LayoutManager',

-    _init() {
+    _init: function () {
        this._rtl = (Clutter.get_default_text_direction() == Clutter.TextDirection.RTL);
        this.monitors = [];
        this.primaryMonitor = null;
@ -204,19 +201,22 @@ var LayoutManager = new Lang.Class({

        // Set up stage hierarchy to group all UI actors under one container.
        this.uiGroup = new Shell.GenericContainer({ name: 'uiGroup' });
-        this.uiGroup.connect('allocate', (actor, box, flags) => {
-            let children = actor.get_children();
-            for (let i = 0; i < children.length; i++)
-                children[i].allocate_preferred_size(flags);
-        });
-        this.uiGroup.connect('get-preferred-width', (actor, forHeight, alloc) => {
-            let width = global.stage.width;
-            [alloc.min_size, alloc.natural_size] = [width, width];
-        });
-        this.uiGroup.connect('get-preferred-height', (actor, forWidth, alloc) => {
-            let height = global.stage.height;
-            [alloc.min_size, alloc.natural_size] = [height, height];
-        });
+        this.uiGroup.connect('allocate',
+                        function (actor, box, flags) {
+                            let children = actor.get_children();
+                            for (let i = 0; i < children.length; i++)
+                                children[i].allocate_preferred_size(flags);
+                        });
+        this.uiGroup.connect('get-preferred-width',
+                        function(actor, forHeight, alloc) {
+                            let width = global.stage.width;
+                            [alloc.min_size, alloc.natural_size] = [width, width];
+                        });
+        this.uiGroup.connect('get-preferred-height',
+                        function(actor, forWidth, alloc) {
+                            let height = global.stage.height;
+                            [alloc.min_size, alloc.natural_size] = [height, height];
+                        });

        global.stage.remove_actor(global.window_group);
        this.uiGroup.add_actor(global.window_group);
@ -240,7 +240,7 @@ var LayoutManager = new Lang.Class({
        this.addChrome(this.panelBox, { affectsStruts: true,
                                        trackFullscreen: true });
        this.panelBox.connect('allocation-changed',
-                              this._panelBoxChanged.bind(this));
+                              Lang.bind(this, this._panelBoxChanged));

        this.modalDialogGroup = new St.Widget({ name: 'modalDialogGroup',
                                                layout_manager: new Clutter.BinLayout() });
@ -260,7 +260,7 @@ var LayoutManager = new Lang.Class({
        global.stage.remove_actor(global.top_window_group);
        this.uiGroup.add_actor(global.top_window_group);

-        let feedbackGroup = Meta.get_feedback_group_for_display(global.display);
+        let feedbackGroup = Meta.get_feedback_group_for_screen(global.screen);
        global.stage.remove_actor(feedbackGroup);
        this.uiGroup.add_actor(feedbackGroup);

@ -270,19 +270,14 @@ var LayoutManager = new Lang.Class({
        this._bgManagers = [];

        // Need to update struts on new workspaces when they are added
-        let workspaceManager = global.workspace_manager;
-        workspaceManager.connect('notify::n-workspaces',
-                                 this._queueUpdateRegions.bind(this));
-
-        let display = global.display;
-        display.connect('restacked',
-                        this._windowsRestacked.bind(this));
-        display.connect('in-fullscreen-changed',
-                        this._updateFullscreen.bind(this));
-
-        let monitorManager = Meta.MonitorManager.get();
-        monitorManager.connect('monitors-changed',
-                               this._monitorsChanged.bind(this));
+        global.screen.connect('notify::n-workspaces',
+                              Lang.bind(this, this._queueUpdateRegions));
+        global.screen.connect('restacked',
+                              Lang.bind(this, this._windowsRestacked));
+        global.screen.connect('monitors-changed',
+                              Lang.bind(this, this._monitorsChanged));
+        global.screen.connect('in-fullscreen-changed',
+                              Lang.bind(this, this._updateFullscreen));
        this._monitorsChanged();

        // NVIDIA drivers don't preserve FBO contents across
@ -290,47 +285,47 @@ var LayoutManager = new Lang.Class({
        // https://bugzilla.gnome.org/show_bug.cgi?id=739178
        if (Shell.util_need_background_refresh()) {
            LoginManager.getLoginManager().connect('prepare-for-sleep',
-                (lm, suspending) => {
-                    if (suspending)
-                        return;
-                    Meta.Background.refresh_all();
-                });
+                                                   function(lm, suspending) {
+                                                       if (suspending)
+                                                           return;
+                                                       Meta.Background.refresh_all();
+                                                   });
        }
    },

    // This is called by Main after everything else is constructed
-    init() {
-        Main.sessionMode.connect('updated', this._sessionUpdated.bind(this));
+    init: function() {
+        Main.sessionMode.connect('updated', Lang.bind(this, this._sessionUpdated));

        this._loadBackground();
    },

-    showOverview() {
+    showOverview: function() {
        this.overviewGroup.show();

        this._inOverview = true;
        this._updateVisibility();
    },

-    hideOverview() {
+    hideOverview: function() {
        this.overviewGroup.hide();

        this._inOverview = false;
        this._updateVisibility();
    },

-    _sessionUpdated() {
+    _sessionUpdated: function() {
        this._updateVisibility();
        this._queueUpdateRegions();
    },

-    _updateMonitors() {
-        let display = global.display;
+    _updateMonitors: function() {
+        let screen = global.screen;

        this.monitors = [];
-        let nMonitors = display.get_n_monitors();
+        let nMonitors = screen.get_n_monitors();
        for (let i = 0; i < nMonitors; i++)
-            this.monitors.push(new Monitor(i, display.get_monitor_geometry(i)));
+            this.monitors.push(new Monitor(i, screen.get_monitor_geometry(i)));

        if (nMonitors == 0) {
            this.primaryIndex = this.bottomIndex = -1;
@ -339,7 +334,7 @@ var LayoutManager = new Lang.Class({
        } else {
            // If there are monitors below the primary, then we need
            // to split primary from bottom.
-            this.primaryIndex = this.bottomIndex = display.get_primary_monitor();
+            this.primaryIndex = this.bottomIndex = screen.get_primary_monitor();
            for (let i = 0; i < this.monitors.length; i++) {
                let monitor = this.monitors[i];
                if (this._isAboveOrBelowPrimary(monitor)) {
@ -362,9 +357,9 @@ var LayoutManager = new Lang.Class({
        }
    },

-    _updateHotCorners() {
+    _updateHotCorners: function() {
        // destroy old hot corners
-        this.hotCorners.forEach(corner => {
+        this.hotCorners.forEach(function(corner) {
            if (corner)
                corner.destroy();
        });
@ -421,22 +416,22 @@ var LayoutManager = new Lang.Class({
        this.emit('hot-corners-changed');
    },

-    _addBackgroundMenu(bgManager) {
+    _addBackgroundMenu: function(bgManager) {
        BackgroundMenu.addBackgroundMenu(bgManager.backgroundActor, this);
    },

-    _createBackgroundManager(monitorIndex) {
+    _createBackgroundManager: function(monitorIndex) {
        let bgManager = new Background.BackgroundManager({ container: this._backgroundGroup,
                                                           layoutManager: this,
                                                           monitorIndex: monitorIndex });

-        bgManager.connect('changed', this._addBackgroundMenu.bind(this));
+        bgManager.connect('changed', Lang.bind(this, this._addBackgroundMenu));
        this._addBackgroundMenu(bgManager);

        return bgManager;
    },

-    _showSecondaryBackgrounds() {
+    _showSecondaryBackgrounds: function() {
        for (let i = 0; i < this.monitors.length; i++) {
            if (i != this.primaryIndex) {
                let backgroundActor = this._bgManagers[i].backgroundActor;
@ -450,7 +445,7 @@ var LayoutManager = new Lang.Class({
        }
    },

-    _updateBackgrounds() {
+    _updateBackgrounds: function() {
        let i;
        for (i = 0; i < this._bgManagers.length; i++)
            this._bgManagers[i].destroy();
@ -469,13 +464,13 @@ var LayoutManager = new Lang.Class({
        }
    },

-    _updateKeyboardBox() {
+    _updateKeyboardBox: function() {
        this.keyboardBox.set_position(this.keyboardMonitor.x,
                                      this.keyboardMonitor.y + this.keyboardMonitor.height);
        this.keyboardBox.set_size(this.keyboardMonitor.width, -1);
    },

-    _updateBoxes() {
+    _updateBoxes: function() {
        this.screenShieldGroup.set_position(0, 0);
        this.screenShieldGroup.set_size(global.screen_width, global.screen_height);

@ -488,17 +483,17 @@ var LayoutManager = new Lang.Class({
        this.keyboardIndex = this.primaryIndex;
    },

-    _panelBoxChanged() {
+    _panelBoxChanged: function() {
        this._updatePanelBarrier();

        let size = this.panelBox.height;
-        this.hotCorners.forEach(corner => {
+        this.hotCorners.forEach(function(corner) {
            if (corner)
                corner.setBarrierSize(size);
        });
    },

-    _updatePanelBarrier() {
+    _updatePanelBarrier: function() {
        if (this._rightPanelBarrier) {
            this._rightPanelBarrier.destroy();
            this._rightPanelBarrier = null;
@ -517,7 +512,7 @@ var LayoutManager = new Lang.Class({
        }
    },

-    _monitorsChanged() {
+    _monitorsChanged: function() {
        this._updateMonitors();
        this._updateBoxes();
        this._updateHotCorners();
@ -529,7 +524,7 @@ var LayoutManager = new Lang.Class({
        this.emit('monitors-changed');
    },

-    _isAboveOrBelowPrimary(monitor) {
+    _isAboveOrBelowPrimary: function(monitor) {
        let primary = this.monitors[this.primaryIndex];
        let monitorLeft = monitor.x, monitorRight = monitor.x + monitor.width;
        let primaryLeft = primary.x, primaryRight = primary.x + primary.width;
@ -544,7 +539,7 @@ var LayoutManager = new Lang.Class({
    },

    get currentMonitor() {
-        let index = global.display.get_current_monitor();
+        let index = global.screen.get_current_monitor();
        return this.monitors[index];
    },

@ -563,8 +558,6 @@ var LayoutManager = new Lang.Class({
    },

    get focusMonitor() {
-        if (this.focusIndex < 0)
-            return null;
        return this.monitors[this.focusIndex];
    },

@ -577,7 +570,7 @@ var LayoutManager = new Lang.Class({
        return this._keyboardIndex;
    },

-    _loadBackground() {
+    _loadBackground: function() {
        if (!this.primaryMonitor) {
            this._pendingLoadBackground = true;
            return;
@ -591,13 +584,13 @@ var LayoutManager = new Lang.Class({
                                                      coordinate: Clutter.BindCoordinate.ALL });
        this._systemBackground.actor.add_constraint(constraint);

-        let signalId = this._systemBackground.connect('loaded', () => {
+        let signalId = this._systemBackground.connect('loaded', Lang.bind(this, function() {
            this._systemBackground.disconnect(signalId);
            this._systemBackground.actor.show();
            global.stage.show();

            this._prepareStartupAnimation();
-        });
+        }));
    },

    // Startup Animations
@ -615,7 +608,7 @@ var LayoutManager = new Lang.Class({
    // When starting a normal user session, we want to grow it out of the middle
    // of the screen.

-    _prepareStartupAnimation() {
+    _prepareStartupAnimation: function() {
        // During the initial transition, add a simple actor to block all events,
        // so they don't get delivered to X11 windows that have been transformed.
        this._coverPane = new Clutter.Actor({ opacity: 0,
@ -659,14 +652,14 @@ var LayoutManager = new Lang.Class({
        // until the event loop is uncontended and idle.
        // This helps to prevent us from running the animation
        // when the system is bogged down
-        let id = GLib.idle_add(GLib.PRIORITY_LOW, () => {
+        let id = GLib.idle_add(GLib.PRIORITY_LOW, Lang.bind(this, function() {
            this._startupAnimation();
            return GLib.SOURCE_REMOVE;
-        });
+        }));
        GLib.Source.set_name_by_id(id, '[gnome-shell] this._startupAnimation');
    },

-    _startupAnimation() {
+    _startupAnimation: function() {
        if (Meta.is_restart())
            this._startupAnimationComplete();
        else if (Main.sessionMode.isGreeter)
@ -675,7 +668,7 @@ var LayoutManager = new Lang.Class({
            this._startupAnimationSession();
    },

-    _startupAnimationGreeter() {
+    _startupAnimationGreeter: function() {
        Tweener.addTween(this.panelBox,
                         { translation_y: 0,
                           time: STARTUP_ANIMATION_TIME,
@ -684,7 +677,7 @@ var LayoutManager = new Lang.Class({
                           onCompleteScope: this });
    },

-    _startupAnimationSession() {
+    _startupAnimationSession: function() {
        Tweener.addTween(this.uiGroup,
                         { scale_x: 1,
                           scale_y: 1,
@ -695,7 +688,7 @@ var LayoutManager = new Lang.Class({
                           onCompleteScope: this });
    },

-    _startupAnimationComplete() {
+    _startupAnimationComplete: function() {
        this._coverPane.destroy();
        this._coverPane = null;

@ -716,7 +709,7 @@ var LayoutManager = new Lang.Class({
        this.emit('startup-complete');
    },

-    showKeyboard() {
+    showKeyboard: function () {
        this.keyboardBox.show();
        Tweener.addTween(this.keyboardBox,
                         { anchor_y: this.keyboardBox.height,
@ -729,17 +722,17 @@ var LayoutManager = new Lang.Class({
        this.emit('keyboard-visible-changed', true);
    },

-    _showKeyboardComplete() {
+    _showKeyboardComplete: function() {
        // Poke Chrome to update the input shape; it doesn't notice
        // anchor point changes
        this._updateRegions();

-        this._keyboardHeightNotifyId = this.keyboardBox.connect('notify::height', () => {
+        this._keyboardHeightNotifyId = this.keyboardBox.connect('notify::height', Lang.bind(this, function () {
            this.keyboardBox.anchor_y = this.keyboardBox.height;
-        });
+        }));
    },

-    hideKeyboard(immediate) {
+    hideKeyboard: function (immediate) {
        if (this._keyboardHeightNotifyId) {
            this.keyboardBox.disconnect(this._keyboardHeightNotifyId);
            this._keyboardHeightNotifyId = 0;
@ -756,7 +749,7 @@ var LayoutManager = new Lang.Class({
        this.emit('keyboard-visible-changed', false);
    },

-    _hideKeyboardComplete() {
+    _hideKeyboardComplete: function() {
        this.keyboardBox.hide();
        this._updateRegions();
    },
@ -771,7 +764,7 @@ var LayoutManager = new Lang.Class({
    // the actual mouse pointer as it moves, you need to call this
    // function before you show the menu to ensure it is at the right
    // position and has the right size.
-    setDummyCursorGeometry(x, y, w, h) {
+    setDummyCursorGeometry: function(x, y, w, h) {
        this.dummyCursor.set_position(Math.round(x), Math.round(y));
        this.dummyCursor.set_size(Math.round(w), Math.round(h));
    },
@ -795,7 +788,7 @@ var LayoutManager = new Lang.Class({
    // will be bound to the presence of fullscreen windows on the same
    // monitor (it will be hidden whenever a fullscreen window is visible,
    // and shown otherwise)
-    addChrome(actor, params) {
+    addChrome: function(actor, params) {
        this.uiGroup.add_actor(actor);
        if (this.uiGroup.contains(global.top_window_group))
            this.uiGroup.set_child_below_sibling(actor, global.top_window_group);
@ -812,7 +805,7 @@ var LayoutManager = new Lang.Class({
    // @params can have any of the same values as in addChrome(),
    // though some possibilities don't make sense. By default, @actor has
    // the same params as its chrome ancestor.
-    trackChrome(actor, params) {
+    trackChrome: function(actor, params) {
        let ancestor = actor.get_parent();
        let index = this._findActor(ancestor);
        while (ancestor && index == -1) {
@ -838,7 +831,7 @@ var LayoutManager = new Lang.Class({
    // @actor: an actor previously tracked via trackChrome()
    //
    // Undoes the effect of trackChrome()
-    untrackChrome(actor) {
+    untrackChrome: function(actor) {
        this._untrackActor(actor);
    },

@ -846,12 +839,12 @@ var LayoutManager = new Lang.Class({
    // @actor: a chrome actor
    //
    // Removes @actor from the chrome
-    removeChrome(actor) {
+    removeChrome: function(actor) {
        this.uiGroup.remove_actor(actor);
        this._untrackActor(actor);
    },

-    _findActor(actor) {
+    _findActor: function(actor) {
        for (let i = 0; i < this._trackedActors.length; i++) {
            let actorData = this._trackedActors[i];
            if (actorData.actor == actor)
@ -860,18 +853,18 @@ var LayoutManager = new Lang.Class({
        return -1;
    },

-    _trackActor(actor, params) {
+    _trackActor: function(actor, params) {
        if (this._findActor(actor) != -1)
            throw new Error('trying to re-track existing chrome actor');

        let actorData = Params.parse(params, defaultParams);
        actorData.actor = actor;
        actorData.visibleId = actor.connect('notify::visible',
-                                            this._queueUpdateRegions.bind(this));
+                                            Lang.bind(this, this._queueUpdateRegions));
        actorData.allocationId = actor.connect('notify::allocation',
-                                               this._queueUpdateRegions.bind(this));
+                                               Lang.bind(this, this._queueUpdateRegions));
        actorData.destroyId = actor.connect('destroy',
-                                            this._untrackActor.bind(this));
+                                            Lang.bind(this, this._untrackActor));
        // Note that destroying actor will unset its parent, so we don't
        // need to connect to 'destroy' too.

@ -880,7 +873,7 @@ var LayoutManager = new Lang.Class({
        this._queueUpdateRegions();
    },

-    _untrackActor(actor) {
+    _untrackActor: function(actor) {
        let i = this._findActor(actor);

        if (i == -1)
@ -895,7 +888,7 @@ var LayoutManager = new Lang.Class({
        this._queueUpdateRegions();
    },

-    _updateActorVisibility(actorData) {
+    _updateActorVisibility: function(actorData) {
        if (!actorData.trackFullscreen)
            return;

@ -905,61 +898,60 @@ var LayoutManager = new Lang.Class({
                                    monitor.inFullscreen);
    },

-    _updateVisibility() {
+    _updateVisibility: function() {
        let windowsVisible = Main.sessionMode.hasWindows && !this._inOverview;

        global.window_group.visible = windowsVisible;
        global.top_window_group.visible = windowsVisible;

-        this._trackedActors.forEach(this._updateActorVisibility.bind(this));
+        this._trackedActors.forEach(Lang.bind(this, this._updateActorVisibility));
    },

-    getWorkAreaForMonitor(monitorIndex) {
+    getWorkAreaForMonitor: function(monitorIndex) {
        // Assume that all workspaces will have the same
        // struts and pick the first one.
-        let workspaceManager = global.workspace_manager;
-        let ws = workspaceManager.get_workspace_by_index(0);
+        let ws = global.screen.get_workspace_by_index(0);
        return ws.get_work_area_for_monitor(monitorIndex);
    },

    // This call guarantees that we return some monitor to simplify usage of it
    // In practice all tracked actors should be visible on some monitor anyway
-    findIndexForActor(actor) {
+    findIndexForActor: function(actor) {
        let [x, y] = actor.get_transformed_position();
        let [w, h] = actor.get_transformed_size();
        let rect = new Meta.Rectangle({ x: x, y: y, width: w, height: h });
-        return global.display.get_monitor_index_for_rect(rect);
+        return global.screen.get_monitor_index_for_rect(rect);
    },

-    findMonitorForActor(actor) {
+    findMonitorForActor: function(actor) {
        let index = this.findIndexForActor(actor);
        if (index >= 0 && index < this.monitors.length)
            return this.monitors[index];
        return null;
    },

-    _queueUpdateRegions() {
+    _queueUpdateRegions: function() {
        if (this._startingUp)
            return;

        if (!this._updateRegionIdle)
            this._updateRegionIdle = Meta.later_add(Meta.LaterType.BEFORE_REDRAW,
-                                                    this._updateRegions.bind(this));
+                                                    Lang.bind(this, this._updateRegions));
    },

-    _getWindowActorsForWorkspace(workspace) {
-        return global.get_window_actors().filter(actor => {
+    _getWindowActorsForWorkspace: function(workspace) {
+        return global.get_window_actors().filter(function (actor) {
            let win = actor.meta_window;
            return win.located_on_workspace(workspace);
        });
    },

-    _updateFullscreen() {
+    _updateFullscreen: function() {
        this._updateVisibility();
        this._queueUpdateRegions();
    },

-    _windowsRestacked() {
+    _windowsRestacked: function() {
        let changed = false;

        if (this._isPopupWindowVisible != global.top_window_group.get_children().some(isPopupMetaWindow))
@ -971,7 +963,7 @@ var LayoutManager = new Lang.Class({
        }
    },

-    _updateRegions() {
+    _updateRegions: function() {
        if (this._updateRegionIdle) {
            Meta.later_remove(this._updateRegionIdle);
            delete this._updateRegionIdle;
@ -1061,16 +1053,16 @@ var LayoutManager = new Lang.Class({
        global.set_stage_input_region(rects);
        this._isPopupWindowVisible = isPopupMenuVisible;

-        let workspaceManager = global.workspace_manager;
-        for (let w = 0; w < workspaceManager.n_workspaces; w++) {
-            let workspace = workspaceManager.get_workspace_by_index(w);
+        let screen = global.screen;
+        for (let w = 0; w < screen.n_workspaces; w++) {
+            let workspace = screen.get_workspace_by_index(w);
            workspace.set_builtin_struts(struts);
        }

        return GLib.SOURCE_REMOVE;
    },

-    modalEnded() {
+    modalEnded: function() {
        // We don't update the stage input region while in a modal,
        // so queue an update now.
        this._queueUpdateRegions();
@ -1086,7 +1078,7 @@ Signals.addSignalMethods(LayoutManager.prototype);
 var HotCorner = new Lang.Class({
    Name: 'HotCorner',

-    _init(layoutManager, monitor, x, y) {
+    _init : function(layoutManager, monitor, x, y) {
        // We use this flag to mark the case where the user has entered the
        // hot corner and has not left both the hot corner and a surrounding
        // guard area (the "environs"). This avoids triggering the hot corner
@ -1104,7 +1096,7 @@ var HotCorner = new Lang.Class({
                                                    HOT_CORNER_PRESSURE_TIMEOUT,
                                                    Shell.ActionMode.NORMAL |
                                                    Shell.ActionMode.OVERVIEW);
-        this._pressureBarrier.connect('trigger', this._toggleOverview.bind(this));
+        this._pressureBarrier.connect('trigger', Lang.bind(this, this._toggleOverview));

        // Cache the three ripples instead of dynamically creating and destroying them.
        this._ripple1 = new St.BoxLayout({ style_class: 'ripple-box', opacity: 0, visible: false });
@ -1116,7 +1108,7 @@ var HotCorner = new Lang.Class({
        layoutManager.uiGroup.add_actor(this._ripple3);
    },

-    setBarrierSize(size) {
+    setBarrierSize: function(size) {
        if (this._verticalBarrier) {
            this._pressureBarrier.removeBarrier(this._verticalBarrier);
            this._verticalBarrier.destroy();
@ -1151,7 +1143,7 @@ var HotCorner = new Lang.Class({
        }
    },

-    _setupFallbackCornerIfNeeded(layoutManager) {
+    _setupFallbackCornerIfNeeded: function(layoutManager) {
        if (!global.display.supports_extended_barriers()) {
            this.actor = new Clutter.Actor({ name: 'hot-corner-environs',
                                             x: this._x, y: this._y,
@ -1177,16 +1169,16 @@ var HotCorner = new Lang.Class({
            }

            this.actor.connect('leave-event',
-                               this._onEnvironsLeft.bind(this));
+                               Lang.bind(this, this._onEnvironsLeft));

            this._corner.connect('enter-event',
-                                 this._onCornerEntered.bind(this));
+                                 Lang.bind(this, this._onCornerEntered));
            this._corner.connect('leave-event',
-                                 this._onCornerLeft.bind(this));
+                                 Lang.bind(this, this._onCornerLeft));
        }
    },

-    destroy() {
+    destroy: function() {
        this.setBarrierSize(0);
        this._pressureBarrier.destroy();
        this._pressureBarrier = null;
@ -1195,7 +1187,7 @@ var HotCorner = new Lang.Class({
            this.actor.destroy();
    },

-    _animRipple(ripple, delay, time, startScale, startOpacity, finalScale) {
+    _animRipple : function(ripple, delay, time, startScale, startOpacity, finalScale) {
        // We draw a ripple by using a source image and animating it scaling
        // outwards and fading away. We want the ripples to move linearly
        // or it looks unrealistic, but if the opacity of the ripple goes
@ -1221,11 +1213,11 @@ var HotCorner = new Lang.Class({
                                   delay: delay,
                                   time: time,
                                   transition: 'linear',
-                                   onUpdate() { ripple.opacity = 255 * Math.sqrt(ripple._opacity); },
-                                   onComplete() { ripple.visible = false; } });
+                                   onUpdate: function() { ripple.opacity = 255 * Math.sqrt(ripple._opacity); },
+                                   onComplete: function() { ripple.visible = false; } });
    },

-    _rippleAnimation() {
+    _rippleAnimation: function() {
        // Show three concentric ripples expanding outwards; the exact
        // parameters were found by trial and error, so don't look
        // for them to make perfect sense mathematically
@ -1236,7 +1228,7 @@ var HotCorner = new Lang.Class({
        this._animRipple(this._ripple3, 0.35,  1.0,   0.0,   0.3,     1);
    },

-    _toggleOverview() {
+    _toggleOverview: function() {
        if (this._monitor.inFullscreen)
            return;

@ -1246,7 +1238,7 @@ var HotCorner = new Lang.Class({
        }
    },

-    handleDragOver(source, actor, x, y, time) {
+    handleDragOver: function(source, actor, x, y, time) {
        if (source != Main.xdndHandler)
            return DND.DragMotionResult.CONTINUE;

@ -1255,7 +1247,7 @@ var HotCorner = new Lang.Class({
        return DND.DragMotionResult.CONTINUE;
    },

-    _onCornerEntered() {
+    _onCornerEntered : function() {
        if (!this._entered) {
            this._entered = true;
            this._toggleOverview();
@ -1263,14 +1255,14 @@ var HotCorner = new Lang.Class({
        return Clutter.EVENT_PROPAGATE;
    },

-    _onCornerLeft(actor, event) {
+    _onCornerLeft : function(actor, event) {
        if (event.get_related() != this.actor)
            this._entered = false;
        // Consume event, otherwise this will confuse onEnvironsLeft
        return Clutter.EVENT_STOP;
    },

-    _onEnvironsLeft(actor, event) {
+    _onEnvironsLeft : function(actor, event) {
        if (event.get_related() != this._corner)
            this._entered = false;
        return Clutter.EVENT_PROPAGATE;
@ -1280,7 +1272,7 @@ var HotCorner = new Lang.Class({
 var PressureBarrier = new Lang.Class({
    Name: 'PressureBarrier',

-    _init(threshold, timeout, actionMode) {
+    _init: function(threshold, timeout, actionMode) {
        this._threshold = threshold;
        this._timeout = timeout;
        this._actionMode = actionMode;
@ -1291,57 +1283,57 @@ var PressureBarrier = new Lang.Class({
        this._reset();
    },

-    addBarrier(barrier) {
-        barrier._pressureHitId = barrier.connect('hit', this._onBarrierHit.bind(this));
-        barrier._pressureLeftId = barrier.connect('left', this._onBarrierLeft.bind(this));
+    addBarrier: function(barrier) {
+        barrier._pressureHitId = barrier.connect('hit', Lang.bind(this, this._onBarrierHit));
+        barrier._pressureLeftId = barrier.connect('left', Lang.bind(this, this._onBarrierLeft));

        this._barriers.push(barrier);
    },

-    _disconnectBarrier(barrier) {
+    _disconnectBarrier: function(barrier) {
        barrier.disconnect(barrier._pressureHitId);
        barrier.disconnect(barrier._pressureLeftId);
    },

-    removeBarrier(barrier) {
+    removeBarrier: function(barrier) {
        this._disconnectBarrier(barrier);
        this._barriers.splice(this._barriers.indexOf(barrier), 1);
    },

-    destroy() {
-        this._barriers.forEach(this._disconnectBarrier.bind(this));
+    destroy: function() {
+        this._barriers.forEach(Lang.bind(this, this._disconnectBarrier));
        this._barriers = [];
    },

-    setEventFilter(filter) {
+    setEventFilter: function(filter) {
        this._eventFilter = filter;
    },

-    _reset() {
+    _reset: function() {
        this._barrierEvents = [];
        this._currentPressure = 0;
        this._lastTime = 0;
    },

-    _isHorizontal(barrier) {
+    _isHorizontal: function(barrier) {
        return barrier.y1 == barrier.y2;
    },

-    _getDistanceAcrossBarrier(barrier, event) {
+    _getDistanceAcrossBarrier: function(barrier, event) {
        if (this._isHorizontal(barrier))
            return Math.abs(event.dy);
        else
            return Math.abs(event.dx);
    },

-    _getDistanceAlongBarrier(barrier, event) {
+    _getDistanceAlongBarrier: function(barrier, event) {
        if (this._isHorizontal(barrier))
            return Math.abs(event.dx);
        else
            return Math.abs(event.dy);
    },

-    _trimBarrierEvents() {
+    _trimBarrierEvents: function() {
        // Events are guaranteed to be sorted in time order from
        // oldest to newest, so just look for the first old event,
        // and then chop events after that off.
@ -1365,21 +1357,21 @@ var PressureBarrier = new Lang.Class({
        this._barrierEvents = this._barrierEvents.slice(firstNewEvent);
    },

-    _onBarrierLeft(barrier, event) {
+    _onBarrierLeft: function(barrier, event) {
        barrier._isHit = false;
-        if (this._barriers.every(b => !b._isHit)) {
+        if (this._barriers.every(function(b) { return !b._isHit; })) {
            this._reset();
            this._isTriggered = false;
        }
    },

-    _trigger() {
+    _trigger: function() {
        this._isTriggered = true;
        this.emit('trigger');
        this._reset();
    },

-    _onBarrierHit(barrier, event) {
+    _onBarrierHit: function(barrier, event) {
        barrier._isHit = true;

        // If we've triggered the barrier, wait until the pointer has the
--- a/js/ui/lightbox.js
+++ b/js/ui/lightbox.js
@ -31,7 +31,7 @@ var RadialShaderQuad = new Lang.Class({
    Name: 'RadialShaderQuad',
    Extends: Shell.GLSLQuad,

-    _init(params) {
+    _init: function(params) {
        this.parent(params);

        this._brightnessLocation = this.get_uniform_location('brightness');
@ -41,7 +41,7 @@ var RadialShaderQuad = new Lang.Class({
        this.vignetteSharpness = 0.0;
    },

-    vfunc_build_pipeline() {
+    vfunc_build_pipeline: function() {
        this.add_glsl_snippet(Shell.SnippetHook.FRAGMENT,
                              VIGNETTE_DECLARATIONS, VIGNETTE_CODE, true);
    },
@ -94,7 +94,7 @@ var RadialShaderQuad = new Lang.Class({
 var Lightbox = new Lang.Class({
    Name: 'Lightbox',

-    _init(container, params) {
+    _init : function(container, params) {
        params = Params.parse(params, { inhibitEvents: false,
                                        width: null,
                                        height: null,
@ -122,7 +122,7 @@ var Lightbox = new Lang.Class({
        this.actor.hide();
        this.shown = false;

-        this.actor.connect('destroy', this._onDestroy.bind(this));
+        this.actor.connect('destroy', Lang.bind(this, this._onDestroy));

        if (params.width && params.height) {
            this.actor.width = params.width;
@ -133,13 +133,13 @@ var Lightbox = new Lang.Class({
            this.actor.add_constraint(constraint);
        }

-        this._actorAddedSignalId = container.connect('actor-added', this._actorAdded.bind(this));
-        this._actorRemovedSignalId = container.connect('actor-removed', this._actorRemoved.bind(this));
+        this._actorAddedSignalId = container.connect('actor-added', Lang.bind(this, this._actorAdded));
+        this._actorRemovedSignalId = container.connect('actor-removed', Lang.bind(this, this._actorRemoved));

        this._highlighted = null;
    },

-    _actorAdded(container, newChild) {
+    _actorAdded : function(container, newChild) {
        let children = this._container.get_children();
        let myIndex = children.indexOf(this.actor);
        let newChildIndex = children.indexOf(newChild);
@ -161,7 +161,7 @@ var Lightbox = new Lang.Class({
        }
    },

-    show(fadeInTime) {
+    show: function(fadeInTime) {
        fadeInTime = fadeInTime || 0;

        Tweener.removeTweens(this.actor);
@ -171,27 +171,27 @@ var Lightbox = new Lang.Class({
                               vignetteSharpness: VIGNETTE_SHARPNESS,
                               time: fadeInTime,
                               transition: 'easeOutQuad',
-                               onComplete: () => {
+                               onComplete: Lang.bind(this, function() {
                                   this.shown = true;
                                   this.emit('shown');
-                               }
+                               })
                             });
        } else {
            Tweener.addTween(this.actor,
                             { opacity: 255 * this._fadeFactor,
                               time: fadeInTime,
                               transition: 'easeOutQuad',
-                               onComplete: () => {
+                               onComplete: Lang.bind(this, function() {
                                   this.shown = true;
                                   this.emit('shown');
-                               }
+                               })
                             });
        }

        this.actor.show();
    },

-    hide(fadeOutTime) {
+    hide: function(fadeOutTime) {
        fadeOutTime = fadeOutTime || 0;

        this.shown = false;
@ -203,23 +203,23 @@ var Lightbox = new Lang.Class({
                               opacity: 0,
                               time: fadeOutTime,
                               transition: 'easeOutQuad',
-                               onComplete: () => {
+                               onComplete: Lang.bind(this, function() {
                                   this.actor.hide();
-                               }
+                               })
                             });
        } else {
            Tweener.addTween(this.actor,
                             { opacity: 0,
                               time: fadeOutTime,
                               transition: 'easeOutQuad',
-                               onComplete: () => {
+                               onComplete: Lang.bind(this, function() {
                                   this.actor.hide();
-                               }
+                               })
                             });
        }
    },

-    _actorRemoved(container, child) {
+    _actorRemoved : function(container, child) {
        let index = this._children.indexOf(child);
        if (index != -1) // paranoia
            this._children.splice(index, 1);
@ -236,7 +236,7 @@ var Lightbox = new Lang.Class({
     * currently-highlighted actor. With no arguments or a false/null
     * argument, all actors will be unhighlighted.
     */
-    highlight(window) {
+    highlight : function(window) {
        if (this._highlighted == window)
            return;

@ -264,7 +264,7 @@ var Lightbox = new Lang.Class({
     *
     * Destroys the lightbox.
     */
-    destroy() {
+    destroy : function() {
        this.actor.destroy();
    },

@ -274,7 +274,7 @@ var Lightbox = new Lang.Class({
     * This is called when the lightbox' actor is destroyed, either
     * by destroying its container or by explicitly calling this.destroy().
     */
-    _onDestroy() {
+    _onDestroy: function() {
        this._container.disconnect(this._actorAddedSignalId);
        this._container.disconnect(this._actorRemovedSignalId);

--- a/js/ui/lookingGlass.js
+++ b/js/ui/lookingGlass.js
@ -40,9 +40,9 @@ var commandHeader = 'const Clutter = imports.gi.Clutter; ' +
                     * in the shell core code too. */
                    'const stage = global.stage; ' +
                    /* Special lookingGlass functions */
-                    'const inspect = Main.lookingGlass.inspect.bind(Main.lookingGlass); ' +
+                    'const inspect = Lang.bind(Main.lookingGlass, Main.lookingGlass.inspect); ' +
                    'const it = Main.lookingGlass.getIt(); ' +
-                    'const r = Main.lookingGlass.getResult.bind(Main.lookingGlass); ';
+                    'const r = Lang.bind(Main.lookingGlass, Main.lookingGlass.getResult); ';

 const HISTORY_KEY = 'looking-glass-history';
 // Time between tabs for them to count as a double-tab event
@ -53,9 +53,7 @@ var AUTO_COMPLETE_GLOBAL_KEYWORDS = _getAutoCompleteGlobalKeywords();
 function _getAutoCompleteGlobalKeywords() {
    const keywords = ['true', 'false', 'null', 'new'];
    // Don't add the private properties of window (i.e., ones starting with '_')
-    const windowProperties = Object.getOwnPropertyNames(window).filter(
-        a => a.charAt(0) != '_'
-    );
+    const windowProperties = Object.getOwnPropertyNames(window).filter(function(a){ return a.charAt(0) != '_' });
    const headerProperties = JsParse.getDeclaredConstants(commandHeader);

    return keywords.concat(windowProperties).concat(headerProperties);
@ -64,13 +62,13 @@ function _getAutoCompleteGlobalKeywords() {
 var AutoComplete = new Lang.Class({
    Name: 'AutoComplete',

-    _init(entry) {
+    _init: function(entry) {
        this._entry = entry;
-        this._entry.connect('key-press-event', this._entryKeyPressEvent.bind(this));
+        this._entry.connect('key-press-event', Lang.bind(this, this._entryKeyPressEvent));
        this._lastTabTime = global.get_current_time();
    },

-    _processCompletionRequest(event) {
+    _processCompletionRequest: function(event) {
        if (event.completions.length == 0) {
            return;
        }
@ -92,7 +90,7 @@ var AutoComplete = new Lang.Class({
        }
    },

-    _entryKeyPressEvent(actor, event) {
+    _entryKeyPressEvent: function(actor, event) {
        let cursorPos = this._entry.clutter_text.get_cursor_position();
        let text = this._entry.get_text();
        if (cursorPos != -1) {
@ -117,7 +115,7 @@ var AutoComplete = new Lang.Class({

    // Insert characters of text not already included in head at cursor position.  i.e., if text="abc" and head="a",
    // the string "bc" will be appended to this._entry
-    additionalCompletionText(text, head) {
+    additionalCompletionText: function(text, head) {
        let additionalCompletionText = text.slice(head.length);
        let cursorPos = this._entry.clutter_text.get_cursor_position();

@ -130,7 +128,7 @@ Signals.addSignalMethods(AutoComplete.prototype);
 var Notebook = new Lang.Class({
    Name: 'Notebook',

-    _init() {
+    _init: function() {
        this.actor = new St.BoxLayout({ vertical: true });

        this.tabControls = new St.BoxLayout({ style_class: 'labels' });
@ -139,15 +137,15 @@ var Notebook = new Lang.Class({
        this._tabs = [];
    },

-    appendPage(name, child) {
+    appendPage: function(name, child) {
        let labelBox = new St.BoxLayout({ style_class: 'notebook-tab',
                                          reactive: true,
                                          track_hover: true });
        let label = new St.Button({ label: name });
-        label.connect('clicked', () => {
+        label.connect('clicked', Lang.bind(this, function () {
            this.selectChild(child);
            return true;
-        });
+        }));
        labelBox.add(label, { expand: true });
        this.tabControls.add(labelBox);

@ -165,14 +163,14 @@ var Notebook = new Lang.Class({
        this.actor.add(scrollview, { expand: true });

        let vAdjust = scrollview.vscroll.adjustment;
-        vAdjust.connect('changed', () => { this._onAdjustScopeChanged(tabData); });
-        vAdjust.connect('notify::value', () => { this._onAdjustValueChanged(tabData); });
+        vAdjust.connect('changed', Lang.bind(this, function () { this._onAdjustScopeChanged(tabData); }));
+        vAdjust.connect('notify::value', Lang.bind(this, function() { this._onAdjustValueChanged(tabData); }));

        if (this._selectedIndex == -1)
            this.selectIndex(0);
    },

-    _unselect() {
+    _unselect: function() {
        if (this._selectedIndex < 0)
            return;
        let tabData = this._tabs[this._selectedIndex];
@ -181,7 +179,7 @@ var Notebook = new Lang.Class({
        this._selectedIndex = -1;
    },

-    selectIndex(index) {
+    selectIndex: function(index) {
        if (index == this._selectedIndex)
            return;
        if (index < 0) {
@ -203,7 +201,7 @@ var Notebook = new Lang.Class({
        this.emit('selection', tabData.child);
    },

-    selectChild(child) {
+    selectChild: function(child) {
        if (child == null)
            this.selectIndex(-1);
        else {
@ -217,26 +215,26 @@ var Notebook = new Lang.Class({
        }
    },

-    scrollToBottom(index) {
+    scrollToBottom: function(index) {
        let tabData = this._tabs[index];
        tabData._scrollToBottom = true;

    },

-    _onAdjustValueChanged(tabData) {
+    _onAdjustValueChanged: function (tabData) {
        let vAdjust = tabData.scrollView.vscroll.adjustment;
        if (vAdjust.value < (vAdjust.upper - vAdjust.lower - 0.5))
            tabData._scrolltoBottom = false;
    },

-    _onAdjustScopeChanged(tabData) {
+    _onAdjustScopeChanged: function (tabData) {
        if (!tabData._scrollToBottom)
            return;
        let vAdjust = tabData.scrollView.vscroll.adjustment;
        vAdjust.value = vAdjust.upper - vAdjust.page_size;
    },

-    nextTab() {
+    nextTab: function() {
        let nextIndex = this._selectedIndex;
        if (nextIndex < this._tabs.length - 1) {
            ++nextIndex;
@ -245,7 +243,7 @@ var Notebook = new Lang.Class({
        this.selectIndex(nextIndex);
    },

-    prevTab() {
+    prevTab: function() {
        let prevIndex = this._selectedIndex;
        if (prevIndex > 0) {
            --prevIndex;
@ -268,7 +266,7 @@ function objectToString(o) {
 var ObjLink = new Lang.Class({
    Name: 'ObjLink',

-    _init(lookingGlass, o, title) {
+    _init: function(lookingGlass, o, title) {
        let text;
        if (title)
            text = title;
@ -282,12 +280,12 @@ var ObjLink = new Lang.Class({
                                     style_class: 'shell-link',
                                     label: text });
        this.actor.get_child().single_line_mode = true;
-        this.actor.connect('clicked', this._onClicked.bind(this));
+        this.actor.connect('clicked', Lang.bind(this, this._onClicked));

        this._lookingGlass = lookingGlass;
    },

-    _onClicked(link) {
+    _onClicked: function (link) {
        this._lookingGlass.inspectObject(this._obj, this.actor);
    }
 });
@ -295,7 +293,7 @@ var ObjLink = new Lang.Class({
 var Result = new Lang.Class({
    Name: 'Result',

-    _init(lookingGlass, command, o, index) {
+    _init: function(lookingGlass, command, o, index) {
        this.index = index;
        this.o = o;

@ -318,17 +316,17 @@ var Result = new Lang.Class({
 var WindowList = new Lang.Class({
    Name: 'WindowList',

-    _init(lookingGlass) {
+    _init: function(lookingGlass) {
        this.actor = new St.BoxLayout({ name: 'Windows', vertical: true, style: 'spacing: 8px' });
        let tracker = Shell.WindowTracker.get_default();
-        this._updateId = Main.initializeDeferredWork(this.actor, this._updateWindowList.bind(this));
-        global.display.connect('window-created', this._updateWindowList.bind(this));
-        tracker.connect('tracked-windows-changed', this._updateWindowList.bind(this));
+        this._updateId = Main.initializeDeferredWork(this.actor, Lang.bind(this, this._updateWindowList));
+        global.display.connect('window-created', Lang.bind(this, this._updateWindowList));
+        tracker.connect('tracked-windows-changed', Lang.bind(this, this._updateWindowList));

        this._lookingGlass = lookingGlass;
    },

-    _updateWindowList() {
+    _updateWindowList: function() {
        this.actor.destroy_all_children();
        let windows = global.get_window_actors();
        let tracker = Shell.WindowTracker.get_default();
@ -336,7 +334,7 @@ var WindowList = new Lang.Class({
            let metaWindow = windows[i].metaWindow;
            // Avoid multiple connections
            if (!metaWindow._lookingGlassManaged) {
-                metaWindow.connect('unmanaged', this._updateWindowList.bind(this));
+                metaWindow.connect('unmanaged', Lang.bind(this, this._updateWindowList));
                metaWindow._lookingGlassManaged = true;
            }
            let box = new St.BoxLayout({ vertical: true });
@ -366,7 +364,7 @@ Signals.addSignalMethods(WindowList.prototype);
 var ObjInspector = new Lang.Class({
    Name: 'ObjInspector',

-    _init(lookingGlass) {
+    _init: function(lookingGlass) {
        this._obj = null;
        this._previousObj = null;

@ -383,7 +381,7 @@ var ObjInspector = new Lang.Class({
        this._lookingGlass = lookingGlass;
    },

-    selectObject(obj, skipPrevious) {
+    selectObject: function(obj, skipPrevious) {
        if (!skipPrevious)
            this._previousObj = this._obj;
        else
@ -399,17 +397,17 @@ var ObjInspector = new Lang.Class({
        label.single_line_mode = true;
        hbox.add(label, { expand: true, y_fill: false });
        let button = new St.Button({ label: 'Insert', style_class: 'lg-obj-inspector-button' });
-        button.connect('clicked', this._onInsert.bind(this));
+        button.connect('clicked', Lang.bind(this, this._onInsert));
        hbox.add(button);

        if (this._previousObj != null) {
            button = new St.Button({ label: 'Back', style_class: 'lg-obj-inspector-button' });
-            button.connect('clicked', this._onBack.bind(this));
+            button.connect('clicked', Lang.bind(this, this._onBack));
            hbox.add(button);
        }

        button = new St.Button({ style_class: 'window-close' });
-        button.connect('clicked', this.close.bind(this));
+        button.connect('clicked', Lang.bind(this, this.close));
        hbox.add(button);
        if (typeof(obj) == typeof({})) {
            let properties = [];
@ -437,7 +435,7 @@ var ObjInspector = new Lang.Class({
        }
    },

-    open(sourceActor) {
+    open: function(sourceActor) {
        if (this._open)
            return;
        this._previousObj = null;
@ -453,7 +451,7 @@ var ObjInspector = new Lang.Class({
        }
    },

-    close() {
+    close: function() {
        if (!this._open)
            return;
        this._open = false;
@ -462,13 +460,13 @@ var ObjInspector = new Lang.Class({
        this._obj = null;
    },

-    _onInsert() {
+    _onInsert: function() {
        let obj = this._obj;
        this.close();
        this._lookingGlass.insertObject(obj);
    },

-    _onBack() {
+    _onBack: function() {
        this.selectObject(this._previousObj, true);
    }
 });
@ -477,7 +475,7 @@ var RedBorderEffect = new Lang.Class({
    Name: 'RedBorderEffect',
    Extends: Clutter.Effect,

-    vfunc_paint() {
+    vfunc_paint: function() {
        let actor = this.get_actor();
        actor.continue_paint();

@ -502,10 +500,10 @@ var RedBorderEffect = new Lang.Class({
 var Inspector = new Lang.Class({
    Name: 'Inspector',

-    _init(lookingGlass) {
+    _init: function(lookingGlass) {
        let container = new Shell.GenericContainer({ width: 0,
                                                     height: 0 });
-        container.connect('allocate', this._allocate.bind(this));
+        container.connect('allocate', Lang.bind(this, this._allocate));
        Main.uiGroup.add_actor(container);

        let eventHandler = new St.BoxLayout({ name: 'LookingGlassDialog',
@ -516,10 +514,10 @@ var Inspector = new Lang.Class({
        this._displayText = new St.Label();
        eventHandler.add(this._displayText, { expand: true });

-        eventHandler.connect('key-press-event', this._onKeyPressEvent.bind(this));
-        eventHandler.connect('button-press-event', this._onButtonPressEvent.bind(this));
-        eventHandler.connect('scroll-event', this._onScrollEvent.bind(this));
-        eventHandler.connect('motion-event', this._onMotionEvent.bind(this));
+        eventHandler.connect('key-press-event', Lang.bind(this, this._onKeyPressEvent));
+        eventHandler.connect('button-press-event', Lang.bind(this, this._onButtonPressEvent));
+        eventHandler.connect('scroll-event', Lang.bind(this, this._onScrollEvent));
+        eventHandler.connect('motion-event', Lang.bind(this, this._onMotionEvent));
        Clutter.grab_pointer(eventHandler);
        Clutter.grab_keyboard(eventHandler);

@ -534,7 +532,7 @@ var Inspector = new Lang.Class({
        this._lookingGlass = lookingGlass;
    },

-    _allocate(actor, box, flags) {
+    _allocate: function(actor, box, flags) {
        if (!this._eventHandler)
            return;

@ -551,7 +549,7 @@ var Inspector = new Lang.Class({
        this._eventHandler.allocate(childBox, flags);
    },

-    _close() {
+    _close: function() {
        Clutter.ungrab_pointer();
        Clutter.ungrab_keyboard();
        this._eventHandler.destroy();
@ -559,13 +557,13 @@ var Inspector = new Lang.Class({
        this.emit('closed');
    },

-    _onKeyPressEvent(actor, event) {
+    _onKeyPressEvent: function (actor, event) {
        if (event.get_key_symbol() == Clutter.Escape)
            this._close();
        return Clutter.EVENT_STOP;
    },

-    _onButtonPressEvent(actor, event) {
+    _onButtonPressEvent: function (actor, event) {
        if (this._target) {
            let [stageX, stageY] = event.get_coords();
            this.emit('target', this._target, stageX, stageY);
@ -574,7 +572,7 @@ var Inspector = new Lang.Class({
        return Clutter.EVENT_STOP;
    },

-    _onScrollEvent(actor, event) {
+    _onScrollEvent: function (actor, event) {
        switch (event.get_scroll_direction()) {
        case Clutter.ScrollDirection.UP:
            // select parent
@ -608,12 +606,12 @@ var Inspector = new Lang.Class({
        return Clutter.EVENT_STOP;
    },

-    _onMotionEvent(actor, event) {
+    _onMotionEvent: function (actor, event) {
        this._update(event);
        return Clutter.EVENT_STOP;
    },

-    _update(event) {
+    _update: function(event) {
        let [stageX, stageY] = event.get_coords();
        let target = global.stage.get_actor_at_pos(Clutter.PickMode.ALL,
                                                   stageX,
@ -636,7 +634,7 @@ Signals.addSignalMethods(Inspector.prototype);
 var Extensions = new Lang.Class({
    Name: 'Extensions',

-    _init(lookingGlass) {
+    _init: function(lookingGlass) {
        this._lookingGlass = lookingGlass;
        this.actor = new St.BoxLayout({ vertical: true,
                                        name: 'lookingGlassExtensions' });
@ -652,10 +650,10 @@ var Extensions = new Lang.Class({
            this._loadExtension(null, uuid);

        ExtensionSystem.connect('extension-loaded',
-                                this._loadExtension.bind(this));
+                                Lang.bind(this, this._loadExtension));
    },

-    _loadExtension(o, uuid) {
+    _loadExtension: function(o, uuid) {
        let extension = ExtensionUtils.extensions[uuid];
        // There can be cases where we create dummy extension metadata
        // that's not really a proper extension. Don't bother with these.
@ -670,20 +668,20 @@ var Extensions = new Lang.Class({
        this._extensionsList.add(extensionDisplay);
    },

-    _onViewSource(actor) {
+    _onViewSource: function (actor) {
        let extension = actor._extension;
        let uri = extension.dir.get_uri();
        Gio.app_info_launch_default_for_uri(uri, global.create_app_launch_context(0, -1));
        this._lookingGlass.close();
    },

-    _onWebPage(actor) {
+    _onWebPage: function (actor) {
        let extension = actor._extension;
        Gio.app_info_launch_default_for_uri(extension.metadata.url, global.create_app_launch_context(0, -1));
        this._lookingGlass.close();
    },

-    _onViewErrors(actor) {
+    _onViewErrors: function (actor) {
        let extension = actor._extension;
        let shouldShow = !actor._isShowing;

@ -711,7 +709,7 @@ var Extensions = new Lang.Class({
        actor._isShowing = shouldShow;
    },

-    _stateToString(extensionState) {
+    _stateToString: function(extensionState) {
        switch (extensionState) {
            case ExtensionSystem.ExtensionState.ENABLED:
                return _("Enabled");
@ -728,7 +726,7 @@ var Extensions = new Lang.Class({
        return 'Unknown'; // Not translated, shouldn't appear
    },

-    _createExtensionDisplay(extension) {
+    _createExtensionDisplay: function(extension) {
        let box = new St.BoxLayout({ style_class: 'lg-extension', vertical: true });
        let name = new St.Label({ style_class: 'lg-extension-name',
                                   text: extension.metadata.name });
@ -749,7 +747,7 @@ var Extensions = new Lang.Class({
                                         style_class: 'shell-link',
                                         label: _("View Source") });
        viewsource._extension = extension;
-        viewsource.connect('clicked', this._onViewSource.bind(this));
+        viewsource.connect('clicked', Lang.bind(this, this._onViewSource));
        metaBox.add(viewsource);

        if (extension.metadata.url) {
@ -758,7 +756,7 @@ var Extensions = new Lang.Class({
                                          style_class: 'shell-link',
                                          label: _("Web Page") });
            webpage._extension = extension;
-            webpage.connect('clicked', this._onWebPage.bind(this));
+            webpage.connect('clicked', Lang.bind(this, this._onWebPage));
            metaBox.add(webpage);
        }

@ -769,7 +767,7 @@ var Extensions = new Lang.Class({
        viewerrors._extension = extension;
        viewerrors._parentBox = box;
        viewerrors._isShowing = false;
-        viewerrors.connect('clicked', this._onViewErrors.bind(this));
+        viewerrors.connect('clicked', Lang.bind(this, this._onViewErrors));
        metaBox.add(viewerrors);

        return box;
@ -779,7 +777,7 @@ var Extensions = new Lang.Class({
 var LookingGlass = new Lang.Class({
    Name: 'LookingGlass',

-    _init() {
+    _init : function() {
        this._borderPaintTarget = null;
        this._redBorderEffect = new RedBorderEffect();

@ -797,11 +795,11 @@ var LookingGlass = new Lang.Class({
                                        vertical: true,
                                        visible: false,
                                        reactive: true });
-        this.actor.connect('key-press-event', this._globalKeyPressEvent.bind(this));
+        this.actor.connect('key-press-event', Lang.bind(this, this._globalKeyPressEvent));

        this._interfaceSettings = new Gio.Settings({ schema_id: 'org.gnome.desktop.interface' });
        this._interfaceSettings.connect('changed::monospace-font-name',
-                                        this._updateFont.bind(this));
+                                        Lang.bind(this, this._updateFont));
        this._updateFont();

        // We want it to appear to slide out from underneath the panel
@ -809,9 +807,9 @@ var LookingGlass = new Lang.Class({
        Main.uiGroup.set_child_below_sibling(this.actor,
                                             Main.layoutManager.panelBox);
        Main.layoutManager.panelBox.connect('allocation-changed',
-                                            this._queueResize.bind(this));
+                                            Lang.bind(this, this._queueResize));
        Main.layoutManager.keyboardBox.connect('allocation-changed',
-                                               this._queueResize.bind(this));
+                                               Lang.bind(this, this._queueResize));

        this._objInspector = new ObjInspector(this);
        Main.uiGroup.add_actor(this._objInspector.actor);
@ -823,34 +821,34 @@ var LookingGlass = new Lang.Class({
                                        icon_size: 24 });
        toolbar.add_actor(inspectIcon);
        inspectIcon.reactive = true;
-        inspectIcon.connect('button-press-event', () => {
+        inspectIcon.connect('button-press-event', Lang.bind(this, function () {
            let inspector = new Inspector(this);
-            inspector.connect('target', (i, target, stageX, stageY) => {
+            inspector.connect('target', Lang.bind(this, function(i, target, stageX, stageY) {
                this._pushResult('inspect(' + Math.round(stageX) + ', ' + Math.round(stageY) + ')', target);
-            });
-            inspector.connect('closed', () => {
+            }));
+            inspector.connect('closed', Lang.bind(this, function() {
                this.actor.show();
                global.stage.set_key_focus(this._entry);
-            });
+            }));
            this.actor.hide();
            return Clutter.EVENT_STOP;
-        });
+        }));

        let gcIcon = new St.Icon({ icon_name: 'user-trash-full',
                                   icon_size: 24 });
        toolbar.add_actor(gcIcon);
        gcIcon.reactive = true;
-        gcIcon.connect('button-press-event', () => {
+        gcIcon.connect('button-press-event', Lang.bind(this, function () {
           gcIcon.icon_name = 'user-trash';
           System.gc();
-           this._timeoutId = Mainloop.timeout_add(500, () => {
+           this._timeoutId = Mainloop.timeout_add(500, Lang.bind(this, function () {
                gcIcon.icon_name = 'user-trash-full';
                this._timeoutId = 0;
                return GLib.SOURCE_REMOVE;
-           });
+           }));
           GLib.Source.set_name_by_id(this._timeoutId, '[gnome-shell] gcIcon.icon_name = \'user-trash-full\'');
           return Clutter.EVENT_PROPAGATE;
-        });
+        }));

        let notebook = new Notebook();
        this._notebook = notebook;
@ -882,7 +880,7 @@ var LookingGlass = new Lang.Class({
        this._extensions = new Extensions(this);
        notebook.appendPage('Extensions', this._extensions.actor);

-        this._entry.clutter_text.connect('activate', (o, e) => {
+        this._entry.clutter_text.connect('activate', Lang.bind(this, function (o, e) {
            // Hide any completions we are currently showing
            this._hideCompletions();

@ -896,26 +894,26 @@ var LookingGlass = new Lang.Class({
                return true;
            this._evaluate(text);
            return true;
-        });
+        }));

        this._history = new History.HistoryManager({ gsettingsKey: HISTORY_KEY, 
                                                     entry: this._entry.clutter_text });

        this._autoComplete = new AutoComplete(this._entry);
-        this._autoComplete.connect('suggest', (a, e) => {
+        this._autoComplete.connect('suggest', Lang.bind(this, function(a,e) {
            this._showCompletions(e.completions);
-        });
+        }));
        // If a completion is completed unambiguously, the currently-displayed completion
        // suggestions become irrelevant.
-        this._autoComplete.connect('completion', (a, e) => {
+        this._autoComplete.connect('completion', Lang.bind(this, function(a,e) {
            if (e.type == 'whole-word')
                this._hideCompletions();
-        });
+        }));

        this._resize();
    },

-    _updateFont() {
+    _updateFont: function() {
        let fontName = this._interfaceSettings.get_string('monospace-font-name');
        let fontDesc = Pango.FontDescription.from_string(fontName);
        // We ignore everything but size and style; you'd be crazy to set your system-wide
@ -925,7 +923,7 @@ var LookingGlass = new Lang.Class({
            + 'font-family: "' + fontDesc.get_family() + '";';
    },

-    setBorderPaintTarget(obj) {
+    setBorderPaintTarget: function(obj) {
        if (this._borderPaintTarget != null)
            this._borderPaintTarget.remove_effect(this._redBorderEffect);
        this._borderPaintTarget = obj;
@ -933,7 +931,7 @@ var LookingGlass = new Lang.Class({
            this._borderPaintTarget.add_effect(this._redBorderEffect);
    },

-    _pushResult(command, obj) {
+    _pushResult: function(command, obj) {
        let index = this._results.length + this._offset;
        let result = new Result(this, CHEVRON + command, obj, index);
        this._results.push(result);
@ -953,7 +951,7 @@ var LookingGlass = new Lang.Class({
        this._notebook.scrollToBottom(0);
    },

-    _showCompletions(completions) {
+    _showCompletions: function(completions) {
        if (!this._completionActor) {
            this._completionActor = new St.Label({ name: 'LookingGlassAutoCompletionText', style_class: 'lg-completions-text' });
            this._completionActor.clutter_text.ellipsize = Pango.EllipsizeMode.NONE;
@ -982,21 +980,21 @@ var LookingGlass = new Lang.Class({
        }
    },

-    _hideCompletions() {
+    _hideCompletions: function() {
        if (this._completionActor) {
            Tweener.removeTweens(this._completionActor);
            Tweener.addTween(this._completionActor, { time: AUTO_COMPLETE_SHOW_COMPLETION_ANIMATION_DURATION / St.get_slow_down_factor(),
                                                      transition: 'easeOutQuad',
                                                      height: 0,
                                                      opacity: 0,
-                                                      onComplete: () => {
+                                                      onComplete: Lang.bind(this, function () {
                                                          this._completionActor.hide();
-                                                      }
+                                                      })
                                                    });
        }
    },

-    _evaluate(command) {
+    _evaluate : function(command) {
        this._history.addItem(command);

        let fullCmd = commandHeader + command;
@ -1012,30 +1010,31 @@ var LookingGlass = new Lang.Class({
        this._entry.text = '';
    },

-    inspect(x, y) {
+    inspect: function(x, y) {
        return global.stage.get_actor_at_pos(Clutter.PickMode.REACTIVE, x, y);
    },

-    getIt() {
+    getIt: function () {
        return this._it;
    },

-    getResult(idx) {
+    getResult: function(idx) {
        return this._results[idx - this._offset].o;
    },

-    toggle() {
+    toggle: function() {
        if (this._open)
            this.close();
        else
            this.open();
    },

-    _queueResize() {
-        Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => { this._resize(); });
+    _queueResize: function() {
+        Meta.later_add(Meta.LaterType.BEFORE_REDRAW,
+                       Lang.bind(this, function () { this._resize(); }));
    },

-    _resize() {
+    _resize: function() {
        let primary = Main.layoutManager.primaryMonitor;
        let myWidth = primary.width * 0.7;
        let availableHeight = primary.height - Main.layoutManager.keyboardBox.height;
@ -1051,17 +1050,17 @@ var LookingGlass = new Lang.Class({
                                              this._targetY + Math.floor(myHeight * 0.1));
    },

-    insertObject(obj) {
+    insertObject: function(obj) {
        this._pushResult('<insert>', obj);
    },

-    inspectObject(obj, sourceActor) {
+    inspectObject: function(obj, sourceActor) {
        this._objInspector.open(sourceActor);
        this._objInspector.selectObject(obj);
    },

    // Handle key events which are relevant for all tabs of the LookingGlass
-    _globalKeyPressEvent(actor, event) {
+    _globalKeyPressEvent : function(actor, event) {
        let symbol = event.get_key_symbol();
        let modifierState = event.get_state();
        if (symbol == Clutter.Escape) {
@ -1083,7 +1082,7 @@ var LookingGlass = new Lang.Class({
        return Clutter.EVENT_PROPAGATE;
    },

-    open() {
+    open : function() {
        if (this._open)
            return;

@ -1105,7 +1104,7 @@ var LookingGlass = new Lang.Class({
                                     });
    },

-    close() {
+    close : function() {
        if (!this._open)
            return;

@ -1121,9 +1120,9 @@ var LookingGlass = new Lang.Class({
        Tweener.addTween(this.actor, { time: Math.min(0.5 / St.get_slow_down_factor(), 0.5),
                                       transition: 'easeOutQuad',
                                       y: this._hiddenY,
-                                       onComplete: () => {
+                                       onComplete: Lang.bind(this, function () {
                                           this.actor.hide();
-                                       }
+                                       })
                                     });
    }
 });
--- a/js/ui/magnifier.js
+++ b/js/ui/magnifier.js
--- a/js/ui/magnifierDBus.js
+++ b/js/ui/magnifierDBus.js
@ -101,7 +101,7 @@ let _zoomRegionInstanceCount = 0;
 var ShellMagnifier = new Lang.Class({
    Name: 'ShellMagnifier',

-    _init() {
+    _init: function() {
        this._zoomers = {};

        this._dbusImpl = Gio.DBusExportedObject.wrapJSObject(MagnifierIface, this);
@ -112,7 +112,7 @@ var ShellMagnifier = new Lang.Class({
     * setActive:
     * @activate:   Boolean to activate or de-activate the magnifier.
     */
-    setActive(activate) {
+    setActive: function(activate) {
        Main.magnifier.setActive(activate);
    },

@ -120,7 +120,7 @@ var ShellMagnifier = new Lang.Class({
     * isActive:
     * @return  Whether the magnifier is active (boolean).
     */
-    isActive() {
+    isActive: function() {
        return Main.magnifier.isActive();
    },

@ -128,7 +128,7 @@ var ShellMagnifier = new Lang.Class({
     * showCursor:
     * Show the system mouse pointer.
     */
-    showCursor() {
+    showCursor: function() {
        Main.magnifier.showSystemCursor();
    },

@ -136,7 +136,7 @@ var ShellMagnifier = new Lang.Class({
     * hideCursor:
     * Hide the system mouse pointer.
     */
-    hideCursor() {
+    hideCursor: function() {
        Main.magnifier.hideSystemCursor();
    },

@ -160,7 +160,7 @@ var ShellMagnifier = new Lang.Class({
     *
     * @return          The newly created ZoomRegion.
     */
-    createZoomRegion(xMagFactor, yMagFactor, roi, viewPort) {
+    createZoomRegion: function(xMagFactor, yMagFactor, roi, viewPort) {
        let ROI = { x: roi[0], y: roi[1], width: roi[2] - roi[0], height: roi[3] - roi[1] };
        let viewBox = { x: viewPort[0], y: viewPort[1], width: viewPort[2] - viewPort[0], height: viewPort[3] - viewPort[1] };
        let realZoomRegion = Main.magnifier.createZoomRegion(xMagFactor, yMagFactor, ROI, viewBox);
@ -180,7 +180,7 @@ var ShellMagnifier = new Lang.Class({
     * Append the given ZoomRegion to the magnifier's list of ZoomRegions.
     * @zoomerObjectPath:   The object path for the zoom region proxy.
     */
-    addZoomRegion(zoomerObjectPath) {
+    addZoomRegion: function(zoomerObjectPath) {
        let proxyAndZoomRegion = this._zoomers[zoomerObjectPath];
        if (proxyAndZoomRegion && proxyAndZoomRegion.zoomRegion) {
            Main.magnifier.addZoomRegion(proxyAndZoomRegion.zoomRegion);
@ -196,14 +196,14 @@ var ShellMagnifier = new Lang.Class({
     * @return:     The Magnifier's zoom region list as an array of DBus object
     *              paths.
     */
-    getZoomRegions() {
+    getZoomRegions: function() {
        // There may be more ZoomRegions in the magnifier itself than have
        // been added through dbus.  Make sure all of them are associated with
        // an object path and proxy.
        let zoomRegions = Main.magnifier.getZoomRegions();
        let objectPaths = [];
        let thoseZoomers = this._zoomers;
-        zoomRegions.forEach ((aZoomRegion, index, array) => {
+        zoomRegions.forEach (function(aZoomRegion, index, array) {
            let found = false;
            for (let objectPath in thoseZoomers) {
                let proxyAndZoomRegion = thoseZoomers[objectPath];
@ -232,7 +232,7 @@ var ShellMagnifier = new Lang.Class({
     * clearAllZoomRegions:
     * Remove all the zoom regions from this Magnfier's ZoomRegion list.
     */
-    clearAllZoomRegions() {
+    clearAllZoomRegions: function() {
        Main.magnifier.clearAllZoomRegions();
        for (let objectPath in this._zoomers) {
            let proxyAndZoomer = this._zoomers[objectPath];
@ -249,7 +249,7 @@ var ShellMagnifier = new Lang.Class({
     * Consult if the Magnifier can magnify in full-screen mode.
     * @return  Always return true.
     */
-    fullScreenCapable() {
+    fullScreenCapable: function() {
        return true;
    },

@ -258,7 +258,7 @@ var ShellMagnifier = new Lang.Class({
     * Set the crosswire size of all ZoomRegions.
     * @size:   The thickness of each line in the cross wire.
     */
-     setCrosswireSize(size) {
+     setCrosswireSize: function(size) {
        Main.magnifier.setCrosshairsThickness(size);
     },

@ -267,7 +267,7 @@ var ShellMagnifier = new Lang.Class({
     * Get the crosswire size of all ZoomRegions.
     * @return:   The thickness of each line in the cross wire.
     */
-     getCrosswireSize() {
+     getCrosswireSize: function() {
        return Main.magnifier.getCrosshairsThickness();
     },

@ -276,7 +276,7 @@ var ShellMagnifier = new Lang.Class({
     * Set the crosswire length of all zoom-regions..
     * @size:   The length of each line in the cross wire.
     */
-     setCrosswireLength(length) {
+     setCrosswireLength: function(length) {
        Main.magnifier.setCrosshairsLength(length);
     },

@ -285,7 +285,7 @@ var ShellMagnifier = new Lang.Class({
     * Set the crosswire size of all zoom-regions.
     * @size:   The thickness of each line in the cross wire.
     */
-     getCrosswireLength() {
+     getCrosswireLength: function() {
        return Main.magnifier.getCrosshairsLength();
     },

@ -294,7 +294,7 @@ var ShellMagnifier = new Lang.Class({
     * Set if the crosswire will be clipped by the cursor image..
     * @clip:   Flag to indicate whether to clip the crosswire.
     */
-     setCrosswireClip(clip) {
+     setCrosswireClip: function(clip) {
        Main.magnifier.setCrosshairsClip(clip);
     },

@ -303,7 +303,7 @@ var ShellMagnifier = new Lang.Class({
     * Get the crosswire clip value.
     * @return:   Whether the crosswire is clipped by the cursor image.
     */
-     getCrosswireClip() {
+     getCrosswireClip: function() {
        return Main.magnifier.getCrosshairsClip();
     },

@ -312,7 +312,7 @@ var ShellMagnifier = new Lang.Class({
     * Set the crosswire color of all ZoomRegions.
     * @color:   Unsigned int of the form rrggbbaa.
     */
-     setCrosswireColor(color) {
+     setCrosswireColor: function(color) {
        Main.magnifier.setCrosshairsColor('#%08x'.format(color));
     },

@ -321,7 +321,7 @@ var ShellMagnifier = new Lang.Class({
     * Get the crosswire color of all ZoomRegions.
     * @return:   The crosswire color as an unsigned int in the form rrggbbaa.
     */
-     getCrosswireColor() {
+     getCrosswireColor: function() {
        let colorString = Main.magnifier.getCrosshairsColor();
        // Drop the leading '#'.
        return parseInt(colorString.slice(1), 16);
@ -337,7 +337,7 @@ var ShellMagnifier = new Lang.Class({
 var ShellMagnifierZoomRegion = new Lang.Class({
    Name: 'ShellMagnifierZoomRegion',

-    _init(zoomerObjectPath, zoomRegion) {
+    _init: function(zoomerObjectPath, zoomRegion) {
        this._zoomRegion = zoomRegion;

        this._dbusImpl = Gio.DBusExportedObject.wrapJSObject(ZoomRegionIface, this);
@ -352,7 +352,7 @@ var ShellMagnifierZoomRegion = new Lang.Class({
     * @yMagFactor:     The power to set the vertical magnification factor to
     *                  of the magnified view.
     */
-    setMagFactor(xMagFactor, yMagFactor) {
+    setMagFactor: function(xMagFactor, yMagFactor) {
        this._zoomRegion.setMagFactor(xMagFactor, yMagFactor);
    },

@ -363,7 +363,7 @@ var ShellMagnifierZoomRegion = new Lang.Class({
     *          magnification.  A value of 2.0 means the contents are doubled
     *          in size, and so on.
     */
-    getMagFactor() {
+    getMagFactor: function() {
        return this._zoomRegion.getMagFactor();
    },

@ -374,7 +374,7 @@ var ShellMagnifierZoomRegion = new Lang.Class({
     *          screen to magnify. The values are in screen (unmagnified)
     *          coordinate space.
     */
-    setRoi(roi) {
+    setRoi: function(roi) {
        let roiObject = { x: roi[0], y: roi[1], width: roi[2] - roi[0], height: roi[3] - roi[1] };
        this._zoomRegion.setROI(roiObject);
    },
@ -387,7 +387,7 @@ var ShellMagnifierZoomRegion = new Lang.Class({
     * @return  an array, [left, top, right, bottom], representing the bounding
     *          rectangle of what is shown in the magnified view.
     */
-    getRoi() {
+    getRoi: function() {
        let roi = this._zoomRegion.getROI();
        roi[2] += roi[0];
        roi[3] += roi[1];
@ -402,7 +402,7 @@ var ShellMagnifierZoomRegion = new Lang.Class({
     * @return  Whether the shift was successful (for GS-mag, this is always
     *          true).
     */
-    shiftContentsTo(x, y) {
+    shiftContentsTo: function(x, y) {
        this._zoomRegion.scrollContentsTo(x, y);
        return true;
    },
@ -413,12 +413,12 @@ var ShellMagnifierZoomRegion = new Lang.Class({
     * @viewPort    Array, [left, top, right, bottom], defining the position and
     *              size on screen to place the zoom region.
     */
-    moveResize(viewPort) {
+    moveResize: function(viewPort) {
        let viewRect = { x: viewPort[0], y: viewPort[1], width: viewPort[2] - viewPort[0], height: viewPort[3] - viewPort[1] };
        this._zoomRegion.setViewPort(viewRect);
    },

-    destroy() {
+    destroy: function() {
        this._dbusImpl.unexport();
    }
 });
--- a/js/ui/main.js
+++ b/js/ui/main.js
@ -96,7 +96,7 @@ function _sessionUpdated() {
    wm.setCustomKeybindingHandler('panel-main-menu',
                                  Shell.ActionMode.NORMAL |
                                  Shell.ActionMode.OVERVIEW,
-                                  sessionMode.hasOverview ? overview.toggle.bind(overview) : null);
+                                  sessionMode.hasOverview ? Lang.bind(overview, overview.toggle) : null);
    wm.allowKeybinding('overlay-key', Shell.ActionMode.NORMAL |
                                      Shell.ActionMode.OVERVIEW);

@ -119,9 +119,7 @@ function start() {
    global.log = window.log;

    // Chain up async errors reported from C
-    global.connect('notify-error', (global, msg, detail) => {
-        notifyError(msg, detail);
-    });
+    global.connect('notify-error', function (global, msg, detail) { notifyError(msg, detail); });

    Gio.DesktopAppInfo.set_desktop_env('GNOME');

@ -192,17 +190,17 @@ function _initializeUI() {

    _a11ySettings = new Gio.Settings({ schema_id: A11Y_SCHEMA });

-    global.display.connect('overlay-key', () => {
+    global.display.connect('overlay-key', Lang.bind(overview, function () {
        if (!_a11ySettings.get_boolean (STICKY_KEYS_ENABLE))
            overview.toggle();
-    });
+    }));

-    global.display.connect('show-restart-message', (display, message) => {
+    global.display.connect('show-restart-message', function(display, message) {
        showRestartMessage(message);
        return true;
    });

-    global.display.connect('restart', () => {
+    global.display.connect('restart', function() {
        global.reexec_self();
        return true;
    });
@ -229,12 +227,12 @@ function _initializeUI() {
    ExtensionSystem.init();

    if (sessionMode.isGreeter && screenShield) {
-        layoutManager.connect('startup-prepared', () => {
+        layoutManager.connect('startup-prepared', function() {
            screenShield.showDialog();
        });
    }

-    layoutManager.connect('startup-complete', () => {
+    layoutManager.connect('startup-complete', function() {
        if (actionMode == Shell.ActionMode.NONE) {
            actionMode = Shell.ActionMode.NORMAL;
        }
@ -256,14 +254,6 @@ function _getStylesheet(name) {
    if (stylesheet.query_exists(null))
        return stylesheet;

-    let dataDirs = GLib.get_system_data_dirs();
-    for (let i = 0; i < dataDirs.length; i++) {
-        let path = GLib.build_filenamev([dataDirs[i], 'gnome-shell', 'theme', name]);
-        let stylesheet = Gio.file_new_for_path(path);
-        if (stylesheet.query_exists(null))
-            return stylesheet;
-    }
-
    stylesheet = Gio.File.new_for_path(global.datadir + '/theme/' + name);
    if (stylesheet.query_exists(null))
        return stylesheet;
@ -429,11 +419,11 @@ function pushModal(actor, params) {
            log('pushModal: invocation of begin_modal failed');
            return false;
        }
-        Meta.disable_unredirect_for_display(global.display);
+        Meta.disable_unredirect_for_screen(global.screen);
    }

    modalCount += 1;
-    let actorDestroyId = actor.connect('destroy', () => {
+    let actorDestroyId = actor.connect('destroy', function() {
        let index = _findModal(actor);
        if (index >= 0)
            popModal(actor);
@ -442,7 +432,7 @@ function pushModal(actor, params) {
    let prevFocus = global.stage.get_key_focus();
    let prevFocusDestroyId;
    if (prevFocus != null) {
-        prevFocusDestroyId = prevFocus.connect('destroy', () => {
+        prevFocusDestroyId = prevFocus.connect('destroy', function() {
            let index = _findModal(actor);
            if (index >= 0)
                modalActorFocusStack[index].prevFocus = null;
@ -528,7 +518,7 @@ function popModal(actor, timestamp) {

    layoutManager.modalEnded();
    global.end_modal(timestamp);
-    Meta.enable_unredirect_for_display(global.display);
+    Meta.enable_unredirect_for_screen(global.screen);
    actionMode = Shell.ActionMode.NORMAL;
 }

@ -556,15 +546,14 @@ function openRunDialog() {
 * and switching out of the overview if it's currently active
 */
 function activateWindow(window, time, workspaceNum) {
-    let workspaceManager = global.workspace_manager;
-    let activeWorkspaceNum = workspaceManager.get_active_workspace_index();
+    let activeWorkspaceNum = global.screen.get_active_workspace_index();
    let windowWorkspaceNum = (workspaceNum !== undefined) ? workspaceNum : window.get_workspace().index();

    if (!time)
        time = global.get_current_time();

    if (windowWorkspaceNum != activeWorkspaceNum) {
-        let workspace = workspaceManager.get_workspace_by_index(windowWorkspaceNum);
+        let workspace = global.screen.get_workspace_by_index(windowWorkspaceNum);
        workspace.activate_with_focus(window, time);
    } else {
        window.activate(time);
@ -617,7 +606,7 @@ function _runBeforeRedrawQueue() {
 function _queueBeforeRedraw(workId) {
    _beforeRedrawQueue.push(workId);
    if (_beforeRedrawQueue.length == 1) {
-        Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
+        Meta.later_add(Meta.LaterType.BEFORE_REDRAW, function () {
            _runBeforeRedrawQueue();
            return false;
        });
@ -647,12 +636,12 @@ function initializeDeferredWork(actor, callback, props) {
    let workId = '' + (++_deferredWorkSequence);
    _deferredWorkData[workId] = { 'actor': actor,
                                  'callback': callback };
-    actor.connect('notify::mapped', () => {
+    actor.connect('notify::mapped', function () {
        if (!(actor.mapped && _deferredWorkQueue.indexOf(workId) >= 0))
            return;
        _queueBeforeRedraw(workId);
    });
-    actor.connect('destroy', () => {
+    actor.connect('destroy', function() {
        let index = _deferredWorkQueue.indexOf(workId);
        if (index >= 0)
            _deferredWorkQueue.splice(index, 1);
@ -684,7 +673,7 @@ function queueDeferredWork(workId) {
        _queueBeforeRedraw(workId);
        return;
    } else if (_deferredTimeoutId == 0) {
-        _deferredTimeoutId = Mainloop.timeout_add_seconds(DEFERRED_TIMEOUT_SECONDS, () => {
+        _deferredTimeoutId = Mainloop.timeout_add_seconds(DEFERRED_TIMEOUT_SECONDS, function () {
            _runAllDeferredWork();
            _deferredTimeoutId = 0;
            return GLib.SOURCE_REMOVE;
@ -697,7 +686,7 @@ var RestartMessage = new Lang.Class({
    Name: 'RestartMessage',
    Extends: ModalDialog.ModalDialog,

-    _init(message) {
+    _init : function(message) {
        this.parent({ shellReactive: true,
                      styleClass: 'restart-message headline',
                      shouldFadeIn: false,
--- a/js/ui/messageList.js
+++ b/js/ui/messageList.js
@ -27,7 +27,6 @@ function _fixMarkup(text, allowMarkup) {

        // Support <b>, <i>, and <u>, escape anything else
        // so it displays as raw markup.
-        // Ref: https://developer.gnome.org/notification-spec/#markup
        _text = _text.replace(/<(?!\/?[biu]>)/g, '&lt;');

        try {
@ -43,13 +42,13 @@ function _fixMarkup(text, allowMarkup) {
 var URLHighlighter = new Lang.Class({
    Name: 'URLHighlighter',

-    _init(text, lineWrap, allowMarkup) {
+    _init: function(text, lineWrap, allowMarkup) {
        if (!text)
            text = '';
        this.actor = new St.Label({ reactive: true, style_class: 'url-highlighter',
                                    x_expand: true, x_align: Clutter.ActorAlign.START });
        this._linkColor = '#ccccff';
-        this.actor.connect('style-changed', () => {
+        this.actor.connect('style-changed', Lang.bind(this, function() {
            let [hasColor, color] = this.actor.get_theme_node().lookup_color('link-color', false);
            if (hasColor) {
                let linkColor = color.to_string().substr(0, 7);
@ -58,12 +57,12 @@ var URLHighlighter = new Lang.Class({
                    this._highlightUrls();
                }
            }
-        });
+        }));
        this.actor.clutter_text.line_wrap = lineWrap;
        this.actor.clutter_text.line_wrap_mode = Pango.WrapMode.WORD_CHAR;

        this.setMarkup(text, allowMarkup);
-        this.actor.connect('button-press-event', (actor, event) => {
+        this.actor.connect('button-press-event', Lang.bind(this, function(actor, event) {
            // Don't try to URL highlight when invisible.
            // The MessageTray doesn't actually hide us, so
            // we need to check for paint opacities as well.
@ -74,8 +73,8 @@ var URLHighlighter = new Lang.Class({
            // a pointer grab, which would block our button-release-event
            // handler, if an URL is clicked
            return this._findUrlAtPos(event) != -1;
-        });
-        this.actor.connect('button-release-event', (actor, event) => {
+        }));
+        this.actor.connect('button-release-event', Lang.bind(this, function (actor, event) {
            if (!actor.visible || actor.get_paint_opacity() == 0)
                return Clutter.EVENT_PROPAGATE;

@ -89,34 +88,34 @@ var URLHighlighter = new Lang.Class({
                return Clutter.EVENT_STOP;
            }
            return Clutter.EVENT_PROPAGATE;
-        });
-        this.actor.connect('motion-event', (actor, event) => {
+        }));
+        this.actor.connect('motion-event', Lang.bind(this, function(actor, event) {
            if (!actor.visible || actor.get_paint_opacity() == 0)
                return Clutter.EVENT_PROPAGATE;

            let urlId = this._findUrlAtPos(event);
            if (urlId != -1 && !this._cursorChanged) {
-                global.display.set_cursor(Meta.Cursor.POINTING_HAND);
+                global.screen.set_cursor(Meta.Cursor.POINTING_HAND);
                this._cursorChanged = true;
            } else if (urlId == -1) {
-                global.display.set_cursor(Meta.Cursor.DEFAULT);
+                global.screen.set_cursor(Meta.Cursor.DEFAULT);
                this._cursorChanged = false;
            }
            return Clutter.EVENT_PROPAGATE;
-        });
-        this.actor.connect('leave-event', () => {
+        }));
+        this.actor.connect('leave-event', Lang.bind(this, function() {
            if (!this.actor.visible || this.actor.get_paint_opacity() == 0)
                return Clutter.EVENT_PROPAGATE;

            if (this._cursorChanged) {
                this._cursorChanged = false;
-                global.display.set_cursor(Meta.Cursor.DEFAULT);
+                global.screen.set_cursor(Meta.Cursor.DEFAULT);
            }
            return Clutter.EVENT_PROPAGATE;
-        });
+        }));
    },

-    setMarkup(text, allowMarkup) {
+    setMarkup: function(text, allowMarkup) {
        text = text ? _fixMarkup(text, allowMarkup) : '';
        this._text = text;

@ -126,7 +125,7 @@ var URLHighlighter = new Lang.Class({
        this._highlightUrls();
    },

-    _highlightUrls() {
+    _highlightUrls: function() {
        // text here contain markup
        let urls = Util.findUrls(this._text);
        let markup = '';
@ -141,7 +140,7 @@ var URLHighlighter = new Lang.Class({
        this.actor.clutter_text.set_markup(markup);
    },

-    _findUrlAtPos(event) {
+    _findUrlAtPos: function(event) {
        let success;
        let [x, y] = event.get_coords();
        [success, x, y] = this.actor.transform_stage_point(x, y);
@ -166,12 +165,12 @@ var ScaleLayout = new Lang.Class({
    Name: 'ScaleLayout',
    Extends: Clutter.BinLayout,

-    _init(params) {
+    _init: function(params) {
        this._container = null;
        this.parent(params);
    },

-    _connectContainer(container) {
+    _connectContainer: function(container) {
        if (this._container == container)
            return;

@ -184,14 +183,15 @@ var ScaleLayout = new Lang.Class({

        if (this._container)
            for (let signal of ['notify::scale-x', 'notify::scale-y']) {
-                let id = this._container.connect(signal, () => {
-                    this.layout_changed();
-                });
+                let id = this._container.connect(signal, Lang.bind(this,
+                    function() {
+                        this.layout_changed();
+                    }));
                this._signals.push(id);
            }
    },

-    vfunc_get_preferred_width(container, forHeight) {
+    vfunc_get_preferred_width: function(container, forHeight) {
        this._connectContainer(container);

        let [min, nat] = this.parent(container, forHeight);
@ -199,7 +199,7 @@ var ScaleLayout = new Lang.Class({
                Math.floor(nat * container.scale_x)];
    },

-    vfunc_get_preferred_height(container, forWidth) {
+    vfunc_get_preferred_height: function(container, forWidth) {
        this._connectContainer(container);

        let [min, nat] = this.parent(container, forWidth);
@ -218,7 +218,7 @@ var LabelExpanderLayout = new Lang.Class({
                                                         GObject.ParamFlags.READABLE | GObject.ParamFlags.WRITABLE,
                                                         0, 1, 0)},

-    _init(params) {
+    _init: function(params) {
        this._expansion = 0;
        this._expandLines = DEFAULT_EXPAND_LINES;

@ -250,11 +250,11 @@ var LabelExpanderLayout = new Lang.Class({
            this.layout_changed();
    },

-    vfunc_set_container(container) {
+    vfunc_set_container: function(container) {
        this._container = container;
    },

-    vfunc_get_preferred_width(container, forHeight) {
+    vfunc_get_preferred_width: function(container, forHeight) {
        let [min, nat] = [0, 0];

        for (let i = 0; i < container.get_n_children(); i++) {
@ -269,7 +269,7 @@ var LabelExpanderLayout = new Lang.Class({
        return [min, nat];
    },

-    vfunc_get_preferred_height(container, forWidth) {
+    vfunc_get_preferred_height: function(container, forWidth) {
        let [min, nat] = [0, 0];

        let children = container.get_children();
@ -287,7 +287,7 @@ var LabelExpanderLayout = new Lang.Class({
        return [min, nat];
    },

-    vfunc_allocate(container, box, flags) {
+    vfunc_allocate: function(container, box, flags) {
        for (let i = 0; i < container.get_n_children(); i++) {
            let child = container.get_child_at_index(i);

@ -301,7 +301,7 @@ var LabelExpanderLayout = new Lang.Class({
 var Message = new Lang.Class({
    Name: 'Message',

-    _init(title, body) {
+    _init: function(title, body) {
        this.expanded = false;

        this._useBodyMarkup = false;
@ -311,7 +311,7 @@ var Message = new Lang.Class({
                                     can_focus: true,
                                     x_expand: true, x_fill: true });
        this.actor.connect('key-press-event',
-                           this._onKeyPressed.bind(this));
+                           Lang.bind(this, this._onKeyPressed));

        let vbox = new St.BoxLayout({ vertical: true });
        this.actor.set_child(vbox);
@ -362,32 +362,32 @@ var Message = new Lang.Class({
        this._bodyStack.add_actor(this.bodyLabel.actor);
        this.setBody(body);

-        this._closeButton.connect('clicked', this.close.bind(this));
-        this.actor.connect('notify::hover', this._sync.bind(this));
-        this.actor.connect('clicked', this._onClicked.bind(this));
-        this.actor.connect('destroy', this._onDestroy.bind(this));
+        this._closeButton.connect('clicked', Lang.bind(this, this.close));
+        this.actor.connect('notify::hover', Lang.bind(this, this._sync));
+        this.actor.connect('clicked', Lang.bind(this, this._onClicked));
+        this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
        this._sync();
    },

-    close() {
+    close: function() {
        this.emit('close');
    },

-    setIcon(actor) {
+    setIcon: function(actor) {
        this._iconBin.child = actor;
        this._iconBin.visible = (actor != null);
    },

-    setSecondaryActor(actor) {
+    setSecondaryActor: function(actor) {
        this._secondaryBin.child = actor;
    },

-    setTitle(text) {
+    setTitle: function(text) {
        let title = text ? _fixMarkup(text.replace(/\n/g, ' '), false) : '';
        this.titleLabel.clutter_text.set_markup(title);
    },

-    setBody(text) {
+    setBody: function(text) {
        this._bodyText = text;
        this.bodyLabel.setMarkup(text ? text.replace(/\n/g, ' ') : '',
                                 this._useBodyMarkup);
@ -395,7 +395,7 @@ var Message = new Lang.Class({
            this._expandedLabel.setMarkup(text, this._useBodyMarkup);
    },

-    setUseBodyMarkup(enable) {
+    setUseBodyMarkup: function(enable) {
        if (this._useBodyMarkup === enable)
            return;
        this._useBodyMarkup = enable;
@ -403,7 +403,7 @@ var Message = new Lang.Class({
            this.setBody(this._bodyText);
    },

-    setActionArea(actor) {
+    setActionArea: function(actor) {
        if (actor == null) {
            if (this._actionBin.get_n_children() > 0)
                this._actionBin.get_child_at_index(0).destroy();
@ -417,7 +417,7 @@ var Message = new Lang.Class({
        this._actionBin.visible = this.expanded;
    },

-    addMediaControl(iconName, callback) {
+    addMediaControl: function(iconName, callback) {
        let icon = new St.Icon({ icon_name: iconName, icon_size: 16 });
        let button = new St.Button({ style_class: 'message-media-control',
                                     child: icon });
@ -426,7 +426,7 @@ var Message = new Lang.Class({
        return button;
    },

-    setExpandedBody(actor) {
+    setExpandedBody: function(actor) {
        if (actor == null) {
            if (this._bodyStack.get_n_children() > 1)
                this._bodyStack.get_child_at_index(1).destroy();
@ -439,11 +439,11 @@ var Message = new Lang.Class({
        this._bodyStack.insert_child_at_index(actor, 1);
    },

-    setExpandedLines(nLines) {
+    setExpandedLines: function(nLines) {
        this._bodyStack.layout_manager.expandLines = nLines;
    },

-    expand(animate) {
+    expand: function(animate) {
        this.expanded = true;

        this._actionBin.visible = (this._actionBin.get_n_children() > 0);
@ -472,7 +472,7 @@ var Message = new Lang.Class({
        this.emit('expanded');
    },

-    unexpand(animate) {
+    unexpand: function(animate) {
        if (animate) {
            Tweener.addTween(this._bodyStack.layout_manager,
                             { expansion: 0,
@ -483,7 +483,7 @@ var Message = new Lang.Class({
                               time: MessageTray.ANIMATION_TIME,
                               transition: 'easeOutQuad',
                               onCompleteScope: this,
-                               onComplete() {
+                               onComplete: function() {
                                   this._actionBin.hide();
                                   this.expanded = false;
                               }});
@ -496,23 +496,22 @@ var Message = new Lang.Class({
        this.emit('unexpanded');
    },

-    canClose() {
+    canClose: function() {
        return this._mediaControls.get_n_children() == 0;
    },

-    _sync() {
+    _sync: function() {
        let visible = this.actor.hover && this.canClose();
        this._closeButton.opacity = visible ? 255 : 0;
-        this._closeButton.reactive = visible;
    },

-    _onClicked() {
+    _onClicked: function() {
    },

-    _onDestroy() {
+    _onDestroy: function() {
    },

-    _onKeyPressed(a, event) {
+    _onKeyPressed: function(a, event) {
        let keysym = event.get_key_symbol();

        if (keysym == Clutter.KEY_Delete ||
@ -528,7 +527,7 @@ Signals.addSignalMethods(Message.prototype);
 var MessageListSection = new Lang.Class({
    Name: 'MessageListSection',

-    _init() {
+    _init: function() {
        this.actor = new St.BoxLayout({ style_class: 'message-list-section',
                                        clip_to_allocation: true,
                                        x_expand: true, vertical: true });
@ -537,12 +536,12 @@ var MessageListSection = new Lang.Class({
                                        vertical: true });
        this.actor.add_actor(this._list);

-        this._list.connect('actor-added', this._sync.bind(this));
-        this._list.connect('actor-removed', this._sync.bind(this));
+        this._list.connect('actor-added', Lang.bind(this, this._sync));
+        this._list.connect('actor-removed', Lang.bind(this, this._sync));

        let id = Main.sessionMode.connect('updated',
-                                          this._sync.bind(this));
-        this.actor.connect('destroy', () => {
+                                          Lang.bind(this, this._sync));
+        this.actor.connect('destroy', function() {
            Main.sessionMode.disconnect(id);
        });

@ -553,7 +552,7 @@ var MessageListSection = new Lang.Class({
        this._sync();
    },

-    _onKeyFocusIn(actor) {
+    _onKeyFocusIn: function(actor) {
        this.emit('key-focus-in', actor);
    },

@ -561,18 +560,18 @@ var MessageListSection = new Lang.Class({
        return true;
    },

-    setDate(date) {
+    setDate: function(date) {
        if (Calendar.sameDay(date, this._date))
            return;
        this._date = date;
        this._sync();
    },

-    addMessage(message, animate) {
+    addMessage: function(message, animate) {
        this.addMessageAtIndex(message, -1, animate);
    },

-    addMessageAtIndex(message, index, animate) {
+    addMessageAtIndex: function(message, index, animate) {
        let obj = {
            container: null,
            destroyId: 0,
@ -585,13 +584,15 @@ var MessageListSection = new Lang.Class({
                                        pivot_point: pivot,
                                        scale_x: scale, scale_y: scale });
        obj.keyFocusId = message.actor.connect('key-focus-in',
-            this._onKeyFocusIn.bind(this));
-        obj.destroyId = message.actor.connect('destroy', () => {
-            this.removeMessage(message, false);
-        });
-        obj.closeId = message.connect('close', () => {
-            this.removeMessage(message, true);
-        });
+            Lang.bind(this, this._onKeyFocusIn));
+        obj.destroyId = message.actor.connect('destroy',
+            Lang.bind(this, function() {
+                this.removeMessage(message, false);
+            }));
+        obj.closeId = message.connect('close',
+            Lang.bind(this, function() {
+                this.removeMessage(message, true);
+            }));

        this._messages.set(message, obj);
        obj.container.add_actor(message.actor);
@ -605,7 +606,7 @@ var MessageListSection = new Lang.Class({
                                              transition: 'easeOutQuad' });
    },

-    moveMessage(message, index, animate) {
+    moveMessage: function(message, index, animate) {
        let obj = this._messages.get(message);

        if (!animate) {
@ -613,13 +614,13 @@ var MessageListSection = new Lang.Class({
            return;
        }

-        let onComplete = () => {
+        let onComplete = Lang.bind(this, function() {
            this._list.set_child_at_index(obj.container, index);
            Tweener.addTween(obj.container, { scale_x: 1,
                                              scale_y: 1,
                                              time: MESSAGE_ANIMATION_TIME,
                                              transition: 'easeOutQuad' });
-        };
+        });
        Tweener.addTween(obj.container, { scale_x: 0,
                                          scale_y: 0,
                                          time: MESSAGE_ANIMATION_TIME,
@ -627,7 +628,7 @@ var MessageListSection = new Lang.Class({
                                          onComplete: onComplete });
    },

-    removeMessage(message, animate) {
+    removeMessage: function(message, animate) {
        let obj = this._messages.get(message);

        message.actor.disconnect(obj.destroyId);
@ -640,7 +641,7 @@ var MessageListSection = new Lang.Class({
            Tweener.addTween(obj.container, { scale_x: 0, scale_y: 0,
                                              time: MESSAGE_ANIMATION_TIME,
                                              transition: 'easeOutQuad',
-                                              onComplete() {
+                                              onComplete: function() {
                                                  obj.container.destroy();
                                                  global.sync_pointer();
                                              }});
@ -650,12 +651,14 @@ var MessageListSection = new Lang.Class({
        }
    },

-    clear() {
-        let messages = [...this._messages.keys()].filter(msg => msg.canClose());
+    clear: function() {
+        let messages = [...this._messages.keys()].filter(function(message) {
+            return message.canClose();
+        });

        // If there are few messages, letting them all zoom out looks OK
        if (messages.length < 2) {
-            messages.forEach(message => {
+            messages.forEach(function(message) {
                message.close();
            });
        } else {
@ -671,25 +674,25 @@ var MessageListSection = new Lang.Class({
                                   time: MESSAGE_ANIMATION_TIME,
                                   delay: i * delay,
                                   transition: 'easeOutQuad',
-                                   onComplete() {
+                                   onComplete: function() {
                                       message.close();
                                   }});
            }
        }
    },

-    _canClear() {
+    _canClear: function() {
        for (let message of this._messages.keys())
            if (message.canClose())
                return true;
        return false;
    },

-    _shouldShow() {
+    _shouldShow: function() {
        return !this.empty;
    },

-    _sync() {
+    _sync: function() {
        let empty = this._list.get_n_children() == 0;
        let changed = this.empty !== empty;
        this.empty = empty;
--- a/Show More
+++ b/Show More