Commit Graph

112 Commits

Author SHA1 Message Date
Benjamin Berg
d9775e41b2 extensionSystem: Allow disabling extensions when globally disabled
The canChange property was not actually reflecting whether
the enableExtension or disableExtension can change the underlying
setting. Instead the property was showing whether such a change will
have an effect.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/695
2019-08-30 18:58:30 +02:00
Benjamin Berg
afefc88e02 extensionSystem: Add isRequested property for extensions
The property reflects whether the extension is enabled in the setting.
This does not mean that the extension is actually loaded, the API user
must check the state property for this information.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/695
2019-08-30 17:19:23 +02:00
Florian Müllner
e357559582 cleanup: Mark globals used from other modules as exported
eslint cannot figure out that those symbols are used from other modules
via imports, so they trigger unused-variable errors. To fix, explicitly
mark those symbols as exported.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/627
2019-07-24 00:28:45 +02:00
Florian Müllner
71759a0769 cleanup: Mark unused (but useful) variables as ignored
While we aren't using those destructured variables, they are still useful
to document the meaning of those elements. We don't want eslint to keep
warning about them though, so mark them accordingly.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/627
2019-07-24 00:28:45 +02:00
Didier Roche
ce1bee727a extensionSystem: Allow disabling session mode extensions
Trying to disable an extension that is enabled by the session mode
currently has no effect, which is clearly confusing. We could update
the various extension UIs to reflect that via sensitivity, but being
unable to configure extensions based on which session the user picked
at login isn't obvious either.

So instead, add a 'disabled-extensions' gsettings key to list extensions
that should not be enabled which takes precedence over 'enabled-extensions'
and can be used to disable session mode extensions.

https://bugzilla.gnome.org/show_bug.cgi?id=789852
2019-07-20 14:17:35 +00:00
Florian Müllner
43cb3754d9 extensionSystem: Store extensions in a Map
After making the extensions map private to the ExtensionManager, we can
switch it to a proper hash table which is more appropriate.

https://bugzilla.gnome.org/show_bug.cgi?id=789852
2019-07-20 14:17:35 +00:00
Florian Müllner
1d6ddf060b extensionSystem: Move extension loading into ExtensionManager
Now that extension loading and the extensions map are no longer shared
between the gnome-shell and gnome-shell-extension-prefs processes, we
can move both into the ExtensionManager which makes much more sense
conceptually.

https://bugzilla.gnome.org/show_bug.cgi?id=789852
2019-07-20 14:17:35 +00:00
Didier Roche
4a3476266f extensionSystem: Add canChange property to extensions
Whether or not an extension can be enabled/disabled depends on various
factors: Whether the extension is in error state, whether user extensions
are disabled and whether the underlying GSettings keys are writable.

This is complex enough to share the logic, so add it to the extension
properties that are exposed over D-Bus.

https://bugzilla.gnome.org/show_bug.cgi?id=789852
2019-07-20 14:17:35 +00:00
Florian Müllner
32e0b895a4 shellDBus: Add new 'ExtensionStateChanged' signal
The existing 'ExtensionStatusChanged' signal has a fixed set of parameters,
which means we cannot add additional state without an API break.  Deprecate
it in favor of a new 'ExtensionStateChanged' signal which addresses this
issue by taking the full serialized extension as parameter.

https://bugzilla.gnome.org/show_bug.cgi?id=789852
2019-07-20 14:17:35 +00:00
Didier Roche
4589da957b extensionSystem: Add methods to enable/disable extensions
Extensions are currently enabled or disabled by directly changing the
list in the 'enabled-extensions' GSettings key. As we will soon add
an overriding 'disabled-extensions' key as well, it makes sense to
offer explicit API for enabling/disabling to avoid duplicating the
logic.

For the corresponding D-Bus API, the methods were even mentioned in
the GSettings schema, albeit unimplemented until now.

https://bugzilla.gnome.org/show_bug.cgi?id=789852
2019-07-20 14:17:35 +00:00
Florian Müllner
6a4c55b852 extensionSystem: Make methods to call extension functions private
While public methods to enable/disable extensions make sense for an
extension manager, the existing ones are only used internally. Make
them private and rename them, so that we can re-use the current
names for more useful public methods.

https://bugzilla.gnome.org/show_bug.cgi?id=789852
2019-07-20 14:17:35 +00:00
Florian Müllner
ea17740719 extensionSystem: Turn into a class
The extension system started out as a set of simple functions, but
gained more state later, and even some hacks to emit signals without
having an object to emit them on.

There is no good reason for that weirdness, so rather than imitating an
object, wrap the existing system into a real ExtensionManager object.

https://bugzilla.gnome.org/show_bug.cgi?id=789852
2019-07-20 14:17:35 +00:00
Florian Müllner
d82810240f extensionUtils: Move ExtensionState definition here
It makes sense to keep extension-related enums in the same module instead
of spreading them between ExtensionSystem and ExtensionUtils.

More importantly, this will make the type available to the extensions-prefs
tool (which runs in a different process and therefore only has access to
a limited set of modules).

https://bugzilla.gnome.org/show_bug.cgi?id=789852
2019-07-20 14:17:35 +00:00
Florian Müllner
0d035a4e53 cleanup: Prefer template strings
Template strings are much nicer than string concatenation, so use
them where possible; this excludes translatable strings and any
strings containing '/' (until we can depend on gettext >= 0.20[0]).

[0] https://savannah.gnu.org/bugs/?50920

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/612
2019-07-05 11:32:31 +00:00
Florian Müllner
f250643385 style: Use space after catch
We are currently inconsistent with whether or not to put a space
after catch clauses. While the predominant style is to omit it,
that's inconsistent with the style we use for any other statement.
There's not really a good reason to stick with it, so switch to
the style gjs/eslint default to.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/607
2019-07-01 23:44:11 +02:00
Florian Müllner
e2e02c9a2f cleanup: Avoid implicit coercion
Converting a variable to a particular type can be done explicitly (with
functions like Number() or toString()) or implicitly by relying on type
coercion (like concatenating a variable to the empty string to force
a string, or multiplying it with 1 to force a number).

As those tend to be less readable and clear, they are best avoided. So
replace the cases of string coercion we use with template strings, and
clarify the places that can be confused with number coercion.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/607
2019-07-01 23:44:11 +02:00
Florian Müllner
f6b4b96737 cleanup: Use Array.includes() to check for element existence
We can use that newer method where we don't care about the actual position
of an element inside the array.

(Array.includes() and Array.indexOf() do behave differently in edge cases,
for example in the handling of NaN, but those don't matter to us)

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/152
2019-07-01 21:28:52 +00:00
Florian Müllner
fd50b9a45e cleanup: Use destructuring for imports from GI
This is *much* nicer than repetitive "imports.gi" lines ...

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/399
2019-02-09 07:39:20 +01:00
Florian Müllner
a1534dab02 cleanup: Clean up unused imports
Spotted by eslint.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/399
2019-02-09 05:05:07 +01:00
Florian Müllner
2fc1f1adbe cleanup: Remove obsolete Lang imports
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/350
2019-01-22 21:33:46 +00:00
Marco Trevisan (Treviño)
72f5802be9 extensionSystem: Unset stylesheet file reference when unloaded
We must remove the GFile reference from the representing object when an
extension has been unloaded as this won't be used anymore later (e.g. as cached
ref).
2018-09-03 23:29:01 +00:00
Marco Trevisan (Treviño)
3aea290adc extensionSystem: Unload stylesheet if extension is not loaded
We should not keep any reference to an extension custom stylesheet in case we
got an error while enabling that
2018-09-03 23:29:01 +00:00
Marco Trevisan (Treviño)
5b3ff7184e extensionSystem: Don't load an extension with invalid stylesheet
We currently assign the stylesheet to an extension whenever the file exists,
regardless of whether it actually loaded successfully or not.
And thus we load an extension that ships a stylesheet even if that file can't
be used.

There is no point in trying to load an extension if its stylesheet wasn't
loaded in the first place, so make sure this happens only on success.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/188
2018-09-03 23:29:01 +00:00
Florian Müllner
3b1330880f cleanup: Use Function.prototype.bind()
When not using arrow notation with anonymous functions, we use Lang.bind()
to bind `this` to named callbacks. However since ES5, this functionality
is already provided by Function.prototype.bind() - in fact, Lang.bind()
itself uses it when no extra arguments are specified. Just use the built-in
function directly where possible, and use arrow notation in the few places
where we pass additional arguments.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
2018-02-21 13:55:02 +00:00
Florian Müllner
213e38c2ef cleanup: Use arrow notation for anonymous functions
Arrow notation is great, use it consistently through-out the code base
to bind `this` to anonymous functions, replacing the more overbose
Lang.bind(this, function() {}).

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
2018-02-21 13:55:00 +00:00
Florian Müllner
033277b68f Define externally accessible contants with 'var' instead of 'const'
Just as we did with classes, define other constants that are (or
may be) used from other modules with 'var' to cut down on warnings.

https://bugzilla.gnome.org/show_bug.cgi?id=785084
2017-07-18 21:52:06 +02:00
Florian Müllner
e845f4105a extensionSystem: Handle all initExtension() extension errors
The method currently catches errors that occur when calling the
extension's init() method, but throws itself an error if the
expected extension.js file is missing. The former is pointless
if we expect all callers to handle errors themselves anyway, and
we should avoid the latter if we don't - opt for the second option
and handle a missing extension.js file gracefully.

https://bugzilla.gnome.org/show_bug.cgi?id=781728
2017-07-17 13:03:19 +02:00
Florian Müllner
d461d02cdc extensionSystem: Catch import errors
While we catch errors that occur when calling init(), enable() or
disable(), the import itself can throw an exception, for instance
if the extension imports an unavailable typelib or tries to draw
in a conflicting library.

https://bugzilla.gnome.org/show_bug.cgi?id=781728
2017-07-17 13:00:00 +02:00
Florian Müllner
88b1a5d3a0 extensions: Consistently handle createExtensionObject() errors
The method may throw an error, for example when metadata.json is
missing or cannot be parsed, however we are currently not always
handling it.

https://bugzilla.gnome.org/show_bug.cgi?id=781728
2017-07-17 13:00:00 +02:00
Florian Müllner
8d6efde091 Revert "extensionSystem: handle reloading broken extensions"
Both reloadExtensions() and enableExtensions() are already expected
to catch extension errors. If they don't, this is the bug that
should be fixed instead of catching unhandled exceptions in the
caller.

This reverts commit ff425d1db7.

https://bugzilla.gnome.org/show_bug.cgi?id=781728
2017-07-17 13:00:00 +02:00
Emilio Pozuelo Monfort
ff425d1db7 extensionSystem: handle reloading broken extensions
Some extensions out there may fail to reload. When that happens,
we need to catch any exceptions so that we don't leave things in
a broken state that could lead to leaving extensions enabled in
the screen shield.

https://bugzilla.gnome.org/show_bug.cgi?id=781728
2017-04-25 17:47:08 +02:00
Florian Müllner
7395aaf9b4 extensionSystem: Add kill-switch setting to disable user extensions
When gnome-shell fails to start on login, gnome-session tries to
re-launch it again with all extensions disabled. This is currently
implemented by clearing the list of enabled extensions, which means
the user needs to re-enable their extensions manually again.
To make this process less annoying, add a single 'kill-switch' setting
gnome-session can use without interfering with the user setting.

https://bugzilla.gnome.org/show_bug.cgi?id=778664
2017-02-15 23:20:14 +01:00
Florian Müllner
a36686a6aa extensionSystem: Fix updating extension list on session update
Before reenabling all extensions, we update the list of enabled extensions
to catch any changes that happened while extensions were enabled. However
this is currently broken as onEnabledExtensionsChanged() is a nop while
disabled, so just call getEnabledExtensions() directly.
2015-12-16 23:50:42 +01:00
Cosimo Cecchi
642bf2b778 theme: convert stylesheet loading to GFile
In preparation to making it a GResource.

https://bugzilla.gnome.org/show_bug.cgi?id=736936
2014-10-14 18:54:00 -07:00
Florian Müllner
4d64bbcf7d extensionSystem: Fix reloading on version-validation changes
The current code only works for enabled extensions, which means
that extensions that were marked OUT_OF_DATE cannot be enabled
without a restart when disabling the version check.
Fix this by reloading all extensions while making sure to only
enable any extensions when we're supposed to.

https://bugzilla.gnome.org/show_bug.cgi?id=736185
2014-09-06 22:06:07 +02:00
Adel Gadllah
1af40b1345 extensionSystem: Add a gsettings key to disable version validation
Add a key 'disable-extension-version-validation' key that disables
the validation of extension's claimed to be supported shell version
with the shell version and just load all extensions unconditionally.

https://bugzilla.gnome.org/show_bug.cgi?id=724683
2014-02-19 17:07:38 +01:00
Jasper St. Pierre
da4238ec68 Synchronize shell startup
The asynchronous nature of extension loading, session loading, and more,
makes the code racy as to what is initialized first, and hard to debug.
Additionally, since gjs is single-threaded, the only code we're running
in a thread anyway is readdir, which is going to be I/O bound, so the
code here is actually likely to be faster.

Drop this in favor of some good old fashioned synchronous loading.
2013-11-04 11:50:20 -05:00
Sebastien Lafargue
2c538d247b catch more errors on extensions enable() and disable()
https://bugzilla.gnome.org/show_bug.cgi?id=688331
2013-10-26 16:35:47 +02:00
Tomeu Vizoso
88ce65266e Disable all extensions in reverse order
So we avoid having to disable and enable an extension that is to
be disabled later anyway.

https://bugzilla.gnome.org/show_bug.cgi?id=700784
2013-05-22 07:51:23 +02:00
Florian Müllner
2344706462 extensionSystem: Allow extensions to provide mode-specific styling
Allow extensions to integrate with modes that provide a distinct
style by providing a mode-specific stylesheet.

https://bugzilla.gnome.org/show_bug.cgi?id=693219
2013-02-05 19:54:17 +01:00
Florian Müllner
378df515d0 extensionSystem: Fix error reporting in lg / ListExtensionErrors()
Commit c99e8eb29 removed this line probably accidentally, as no
effort has been made to replace consumers in lookingGlass and
shellDBus.

https://bugzilla.gnome.org/show_bug.cgi?id=690173
2012-12-13 19:55:33 +01:00
Florian Müllner
31f75e4607 extensionSystem: Add support for mode-specific extensions
As currently envisioned, the fallback replacement in 3.8 should be
a separate session at the login screen. As we will use extensions
to implement this mode, we need a way to specify extensions per
session rather than per user, so add a session-mode property for
extensions that should be loaded in addition to the user-defined
ones.

https://bugzilla.gnome.org/show_bug.cgi?id=689305
2012-12-05 21:56:57 +01:00
Jasper St. Pierre
ca73017100 extensionSystem: Don't spam the error log with OUT_OF_DATE errors
Nobody cares

https://bugzilla.gnome.org/show_bug.cgi?id=689108
2012-11-26 15:11:58 -05:00
Giovanni Campagna
77c15b76b5 Fix extension styling
St.Theme.load_stylesheet() does not queue a theme context change, so
any styling of widgets created before will not be updated. To fix this,
load the stylesheet before the extension builds its own UI in enable()

https://bugzilla.gnome.org/show_bug.cgi?id=682128
2012-09-13 22:41:17 +02:00
Jasper St. Pierre
ca2e09fe8b sessionMode: Allow changing the session mode at runtime
Since we eventually want to add a system for changing the top panel
contents depending on the current state of the shell, let's use the
"session mode" feature for this, and add a mechanism for updating the
session mode at runtime. Add support for every key besides the two
functional keys, and make all the components update automatically when the
session mode is changed. Add a new lock-screen mode, and make the lock
screen change to this when locked.

https://bugzilla.gnome.org/show_bug.cgi?id=683156
2012-09-04 18:42:44 -03:00
Jasper St. Pierre
4ca2697271 shellDBus: Fix reloadExtension
We need to recreate and reimport the extension here, not just reimport
the same exact code.

https://bugzilla.gnome.org/show_bug.cgi?id=682578
2012-08-23 22:57:46 -03:00
Jasper St. Pierre
4696bfbb80 extensionSystem: Make unloadExtension take an extension object, not a UUID
For consistency with loadExtension.

https://bugzilla.gnome.org/show_bug.cgi?id=682578
2012-08-23 22:57:45 -03:00
Jasper St. Pierre
e1ec89a133 extensionSystem: Fix error emitting when enabling/disabling
We don't have an extension object here.
2012-07-11 22:46:59 -04:00
Jasper St. Pierre
c99e8eb29d extensionSystem: Be saner at error handling
Use our native JS error system in the "extension system" API, only
using the signal/log-based error reporting at the last mile. Additionally,
delete the directory if loading the extension failed, and report the error
back over DBus.

https://bugzilla.gnome.org/show_bug.cgi?id=679099
2012-07-02 18:29:56 -04:00
Jasper St. Pierre
75570b7995 extensionSystem: Add a method to unload an extension
https://bugzilla.gnome.org/show_bug.cgi?id=677586
2012-06-12 17:16:09 -04:00