Bump version to 3.1.3.1

Update NEWS

.gitignore

@@ -43,7 +43,7 @@ POTFILES
 50-metacity-desktop-key.xml
 50-metacity-key.xml
 inlinepixbufs.h
-libmutter-private.pc
+libmutter.pc
 mutter
 mutter-theme-viewer
 mutter.desktop

NEWS

@@ -1,3 +1,820 @@
+3.1.3.1
+=======
+* Back API version down to "3.0" - the change to Meta-3.1.gir
+  was unintentional [Owen]
+
+Translations:
+ Yaron Shahrabani [he], Kjartan Maraas [nb], Muhammet Kara [tr]
+
+3.1.3
+=====
+* Support dark window theme variants for windows with a dark
+  widget theme; this is selected by the _GTK_THEME_VARIANT
+  property [Florian, #645355]
+* Don't draw a shadow under windows with an alpha-channel - this
+  fixes transparency for GNOME Terminal [Owen, Jasper; #635268]
+* Add a MetaWindow:wm-class property for notification [Jasper; #649315]
+* Add a MetaWindow:minimized property for notification [Florian]
+* Fix handing of unusual window shapes that Wine was setting
+  causing some applications to draw wrong [Jasper; #627880]
+* Improve replacing another compositor and being replaced:
+  release compositor selection in the right order and wait for
+  compositors that get it wrong. [Colin, Owen; #653121]
+* Remove behavior where left clicking on a window border with
+  the titlebar offscreen gave the window menu [Florian; #652369]
+* Don't set the global default textdomain, since Mutter is
+  a library as well as an application [Dan; #649202]
+* Exit with the right (success or failure) exit status [Dan]
+* Code cleanup [Florian]
+* Miscellaneous bug fixes [Owen; #649114, #652507]
+
+Contributors:
+ Florian Müllner, Jasper St. Pierre, Owen Taylor, Colin Walters, Dan Winship
+
+Translations:
+ Ihar Hrachyshka [be], Daniel Mustieles [es], Yaron Shahrabani [he],
+ Carles Ferrando [ca@valencia], Takeshi Aihana [ja], Fran Diéguez [gl],
+ Matej Urbančič [sl], Miroslav Nikolic [sr], Muhammet Kara [tr],
+ Daniel Korostil [uk]
+
+3.0.2.1
+=======
+* When saving the session, use the "program name" rather than
+  harcoding mutter, fixing session saving for gnome-shell [Matthias]
+  https://bugzilla.gnome.org/show_bug.cgi?id=648828
+
+Contributors:
+ Matthias Clasen
+
+3.0.2
+=====
+
+* Fix a crash when running without XKB support [Adam]
+  https://bugzilla.gnome.org/show_bug.cgi?id=647777
+* Fix smallish memory leaks [Colin]
+  https://bugzilla.gnome.org/show_bug.cgi?id=649500
+  https://bugzilla.gnome.org/show_bug.cgi?id=649504
+* Ignore mirrored monitors when listing monitors, fixing
+  drag-and-drop problems in GNOME Shell [Owen]
+  https://bugzilla.gnome.org/show_bug.cgi?id=649299
+* Don't allow side-by-side tiling of non-maximizable windows
+  like dialogs and utility windows [Dan]
+* Fix interaction of _NET_WM_WINDOW_OPACITY with window effects,
+  making it work again with GNOME Shell
+  https://bugzilla.gnome.org/show_bug.cgi?id=648613
+
+Contributors:
+ Adam Jackson, Colin Walters, Dan Winship
+
+Translations:
+ Abduxukur Abdurixit [ug]
+
+3.0.1
+=====
+
+* If WM_CLIENT_MACHINE isn't set, don't assume a window is remote;
+  fixes behavior of Fox toolkit applications under GNOME Shell.
+  https://bugzilla.gnome.org/show_bug.cgi?id=647662 [Colin]
+* Fix cases where windows could get stuck drawing as focused after
+  an attached modal dialog was closed. [Dan]
+  https://bugzilla.gnome.org/show_bug.cgi?id=647613
+* Fix a bug where a window that is too big to be tiled side-by-side
+  would behave strangely when using the gesture of dragging to
+  the top to maximize. [Florian]
+
+Contributors:
+ Florian Müllner, Colin Walters, Dan Winship
+
+Translations:
+ Amitakhya Phukan [as], Kristjan Schmidt [eo], Muhammet Kara [tr]
+
+3.0.0
+=====
+
+* Avoid crashing when you have a single window and try to move it between
+  workspaces. [Dan]
+  https://bugzilla.gnome.org/show_bug.cgi?id=642957
+
+Contributors:
+ Dan Winship
+
+Translations:
+ Jordi Serratosa [ca], Petr Kovar [cz], Ask H. Larsen [da], Bruce Cowan [en_GB],
+ Inaki Larranaga Murgoitio [eu], Gabor Kelemen [hu], Dirgita [id], Shankar Prasad [kn],
+ Changwoo Ryu [ko], Wouter Bolsterlee [nl], Duarte Loreto [pt],
+ Antonio Fernandes C. Neto, Rodrigo Padula de Oliveira [pt_BR], T. Vasudevan [ta],
+ Nguyễn Thái Ngọc Duy [vi], Chao-Hsiung Liao [zh_HK, zh_TW]
+
+2.91.93
+=======
+
+* Fix bug where, when a monitor was hot-plugged, all workspaces
+  would collapse to a single workspace. (There are still issues
+  when a secondary monitor is hot-plugged to the left of the
+  primary monitor.) [Alex]
+  https://bugzilla.gnome.org/show_bug.cgi?id=645408)
+
+* Fix a crash for the cycle_group action [Jasper]
+  https://bugzilla.gnome.org/show_bug.cgi?id=645843
+
+* Fix misdrawing of window shadows on some focus changes [Dan]
+  https://bugzilla.gnome.org/show_bug.cgi?id=636904
+
+* Export meta_get_replace_current_wm() to allow fixing a
+  GNOME Shell bug with --replace [Colin]
+  https://bugzilla.gnome.org/show_bug.cgi?id=645590
+
+Contributors:
+ Alexander Larsson, Jasper St. Pierre, Colin Walters, Dan Winship
+
+Translations:
+ Alexander Shopov [bg], Christian Kirbach [de], Yaron Shahrabani [he],
+ Rudolfs Mazurs [lv], A S Alam [pa], Yuri Myasoedov [ru], Daniel Nylander [se],
+ Abduxukur Abdurixit [ug], Daniel Korostil [uj], Aron Xu [zh_CN]
+
+2.91.92
+=======
+
+ * Add a workspaces_only_on_primary preferences. When set, this makes
+   workspaces switching only apply to windows on the primary monitor,
+   while windows on other monitors are unaffected.
+ * Export API for monitor handling [Alex]
+    MetaScreen::monitors-changed signal
+    meta_screen_get_primary_monitor()
+    meta_window_is_on_primary_monitor()
+    meta_window_get_monitor()
+    MetaWindow::window-entered-monitor, <etaWindow::window-left-monitor
+    meta_window_move_to_monitor() [Florian]
+ * Behavior improvemnts for attached modal dialogs:
+   - Allow dragging dragging on the titlebar to move the  parent ["Ron"]
+   - Allow resizing [Florian]
+   - Constrain to be on the current monitor [Florian]
+ * Don't turn on XSMP autorestart [Colin]
+ * Combine libmutter-wm and libmutter-private into a single libmutter
+   [Frédéric]
+ * Export methods to move and resize windows [Jeffery]
+   meta_window_move(), meta_window_resize(), meta_window_move_frame()
+ * Add a MUTTER_WM_CLASS_FILTER environment variable to allow existing
+   windows to be ignored when performance testing. [Owen]
+ * Add a new compositor-based flash for visual bell [Dan]
+ * Fix bug where application specified values for properties like
+   "skip taskbar" were sometimes ignored [Dan]
+ * Bug fixes [Dan, Florian, Giovanni, Jasper, Owen]
+ * Build fixes [Rico]
+
+Contributors:
+ Giovanni Campagna, Florian Müllner, Alexander Larsson, Jeffery Olson,
+ Frédéric Péters, Owen Taylor, Jasper St. Pierre, Rico Tzschichholz,
+ "Ron", Colin Walters, Dan Winship
+
+Translations:
+ Khaled Hosny [ar], David Planella [ca], Mario Blättermann [de],
+ Bruce Cowan [en_GB], Jorge González, Daniel Mustieles [es], Ivar Smolin [et],
+ Bruno Brouard [fr], Fran Diéguez [gl], Yaron Shahrabani [he],
+ Gabor Kelemen [hu], Luca Ferretti [it], Kjartan Maraas [nb], Piotr Drąg [pl],
+ Duarte Loreto [pt], Lucian Adrian Grijincu, Adi Roiban [ro],
+ Yuri Myasoedov [ru], Matej Urbančič [sl], Daniel Korostil [uk]
+
+Bugs fixed:
+ 624360 window shows up in when pressing alt+tab, but skip_taskbar_hint is set to True
+ 631308 Dialogs attached to parent sometimes extend out of the screen
+ 638674 [PATCH] Allow moving attached dialogs
+ 639765 a11y: visual alert only works per-window, not screen
+ 641975 Pre-_NET_WM_ICONs look corrupted
+ 642355 patch to expose MetaWindow.move(), .resize() and add/expose .move_frame() to javascript
+ 642787 MetaWindowActor has a dangling reference to its MetaWindow
+ 643597 Attached dialogs not resizable, even by app request
+ 644188 Broken build of 2.91.91
+ 644252 Add MUTTER_WM_CLASS_FILTER environment variable
+ 644529 session: Change XSMP restart style to Never
+ 644565 Kill libmutter-private ?
+ 644961 auto-tiling makes moving already-tiled windows hard
+ 645224 Translation message doesn't make much sense
+ 645247 Methods of Meta.Rectangle are missing annotations.
+ 645455 tiling: Fix dragging windows free from edge-tiling
+
+2.91.91
+=======
+
+ * Build a libmutter-wm that contains all of the logic and that
+   can be linked to to create custom executables. The mutter executable
+   becomes a small stub linked to this library [Dan]
+ * Move installed headers files into a meta/ subdirectory instead
+   of polluting the toplevel namespace [Dan]
+ * Remove various unused complications: [Dan]
+   - Ability to set the set of plugins via GConf
+   - Plugin 'params'
+   - meta_restart() and "mutter-message restart"
+ * Don't exit when we are requested to exit via XSMP, assume we'll be
+   killed along with the X server; this avoids visual artifacts from
+   unmanaging windows when logging out [Colin]
+ * Build fixes [Dan, Jani, Jeff]
+
+Contributors:
+ Jani Monoses, Jeff Olson, Colin Walters, Dan Winship
+
+Translations:
+ Bruno Brouard [fr], Kjartan Maraas [nb], Daniel Korostil [uk]
+
+Bugs fixed:
+ 643194 patch: expose new meta_window_get_window_rect
+ 643437 Don't exit on XSMP request
+ 643959 Make mutter into a library
+
+2.91.90
+=======
+
+ * Change <Alt>Above_Tab from being a cycle_group binding to
+   a switch_group binding [Rui]
+ * Make plugin-loading failure fatal [Colin]
+ * Add 'position-changed' signal to MetaWindowActor [Owen]
+ * When 'live_hidden_previews' is enabled, position hidden windows
+   to allow the creation of workspace previews [Owen]
+ * Fix bug with opacity of MetaBackgroundActor
+
+Contributors:
+  Rui Matos, Owen Taylor, Colin Walters
+
+Translations:
+  Jorge González [es],  Mattias Põldaru [et], Sweta Kothari [gu], Luca Ferretti [it],
+  Changwoo Ryu [ko], Nguyễn Thái Ngọc Duy [vi]
+
+Bugs fixed:
+  641309 When live_hidden_previews is set, force placement for hidden windows
+  641310 MetaWindowActor: Add a 'positioned-changed' signal
+  641979 Visual glitch on workspace selector closing overview mode
+  641384 Make plugin loading failure fatal
+  642426 Don't pass handled key events to GTK+
+
+2.91.6
+======
+
+ * Add meta_screen_override_window_layout() to let a plugin set the workspace
+   layout [Owen]
+ * Add a 'size-changed' signal to MetaWindowActor [Florian]
+ * Add meta_window_actor_is_destroyed() [Adel]
+ * Fix problems with window tile previews when cancelling a move [Florian]
+ * Port theme elements that use GTK+ drawing to use GtkStyleContext instead
+   of the deprecated GtkStyle. [Florian]
+ * Fix compiler warnings that were causing compilation failures [Jasper, Owen]
+ * Misc bug fixes [Gabor, Jasper, Owen, Rui]
+
+Contributors:
+ Adel Gadllah, Gabor Kelemen, Rui Matos, Florian Müllner, Jasper St. Pierre,
+ Owen Taylor
+
+Translations:
+ Khaled Hosny [ar], Alexander Shopov [bg], Petr Kovar [cz], Fran Diéguez [gl],
+ Marios Zindilis [gr], Gabor Kelemen [hu], Kjartan Maraas [nb], A S Alam [pa],
+ Daniel Nylander [se], Chao-Hsiung Liao [zh_HK, zh_TW]
+
+2.91.5
+======
+
+* Add a Above_Tab key symbol that can be used in key bindings to mean
+  the key above the Tab key. This is now the default binding for
+  cycle_group in both Mutter and Metacity. [Owen]
+* Add new frame states for tiled-on-the-left and tiled-on-the-right [Florian]
+* Add new background drawing functions that can be defined in a theme
+  for single buttons. [Florian]
+* Draw the right button backgrounds for all custom button layouts [Florian]
+* Remove vestigal --composite/--no-composite command line options [Nickolas]
+* Fix building on GLES [Andreas]
+* Code cleanups [Adel, Owen]
+
+Contributors:
+ Adel Gadllah, Nickolas Lloyd, Andreas Mueller, Florian Müllner, Owen Taylor
+
+Translations:
+ Mattias Põldaru, Ivar Smolin [et], Gheyret T. Kenji [ug]
+
+Bugs fixed:
+ 613124 Invalid visibility-related asserts in MutterWindow
+ 626875 Fix handling of --composite and --no-composite command line options
+ 629282 [PATCH] Fix errors building for gles-systems (clutter-eglx)
+ 635569 Add an "Above_Tab" pseudo-keysym
+ 635683 add specific button background for single button (per side) case
+ 635686 button backgrounds broken with rtl locales
+ 637330 [PATCH] theme: Add tiled_left/tiled_right frame states
+
+2.91.4
+======
+
+* Update for GTK+ 3 changes [Benjamin, Colin, Emmanuele, Florian]
+* Support maximizing a window by dragging to the top of the screen
+  in the same way you can tile by dragging to the edge of the screen.
+  [Ray, Florian]
+* Misc bug fixes [Milan, Owen]
+
+Contributors:
+ Emmanuele Bassi, Milan Bouchet-Valat, Florian Müllner, Benjamin Otte,
+ Ray Strode, Owen Taylor, Colin Walters
+
+Translations:
+ Matej Urbančič [sl], Nguyễn Thái Ngọc Duy [vi]
+
+Bugs fixed:
+ 630548 gnome-shell could auto-maximize windows when dragged to top edge of screen
+ 636083 workspace: Consider text direction when switching
+ 636301 Port testgradient example to GTK3
+ 636302 Replace some GDK X11 calls with future-proof ones
+ 636491 valgrind: meta_window_shape_new (meta-window-shape.c:79)
+ 637802 ui: Adapt to GDK API changes
+
+2.91.3
+======
+
+* Better shadows: [Owen]
+   - Shadows can be different for different window types and focus states
+   - Shadows are larger by default, especially for the currently active
+     window
+   - Shadows for attached modal dialogs and menus are drawn not to
+     overlap the attachment point.
+   - Shadows follow the shape of shaped windows
+ * Optimization: [Owen]
+   - Avoid repainting in situations when windows are potentially restacked
+     but aren't actually restacked.
+   - Pay attention to partial stage repaints in obscured window calculations
+   - Better optimization of painting obscured shadows; turn off shadows
+     for maximized windows.
+   - Move background repainting into Mutter; doing it here rather than
+     in plugins allows not painting obscured parts of the background.
+ * A new frame type 'attached' is added for attached modal dialogs
+   and can be referenced in theme files with a theme version of 3.2.
+ * Fix updating key bindings when the keyboard layout changes
+   [Derek, Owen, Thomas]
+ * Bug fixes [Adel, Florian]
+ * Build fixes [Dan Williams, Diego, Javier, Owen]
+
+Contributors:
+ Adel Gadllah, Javier Jardón, Florian Müllner, Derek Poon, Owen Taylor,
+ Thomas Thurman, Diego Escalante Urrelo, Dan Williams
+
+Translations:
+ Khaled Hosny [ar], Jorge González [es], Fran Diéguez [gl],
+ Yaron Shahrabani [he], Kjartan Maraas [nb], Gheyret T. Kenji [ug]
+
+Bugs fixed:
+ 634779 MetaWindowGroup: further optimize paints by using current scissor
+ 634833 Draw the root window background
+ 592382 improve shadow effect
+ 628199 Add antialising to arc and line drawing operations
+ 633002 meta-actor-window: Use G_UNLIKELY for TFP check
+ 634771 MetaStackTracker: Avoid queueing resync for obvious no-ops
+ 635421 Fix crash in check_needs_shadow
+ 635493 configure.in: it's git, not Subversion
+ 635528 configure.ac: move call to AM_GNU_GLIB_GETTEXT above cflags modification
+ 635575 meta-window-actor: remove unused meta_window_actor_get_shadow_bounds
+ 636083 workspace: Consider text direction when switching
+
+2.91.2
+======
+
+* Remove support for GTK+ 2 [Florian]
+* Adapt to deprecation of size_request deprecation in GTK+ [Matthias]
+* Include change from Metacity to fix confusion of mouse
+  tracking when double-clicking on title bar [Owen]
+* Fix bug with the the window menu getting stuck when you alt-Tab [Owen]
+
+Contributors:
+ Matthias Clasen, Florian Müllner, Owen Taylor
+
+Translations:
+ Petr Kovar [cz]
+
+Bugs fixed:
+ 633133 Remove compatibility for GTK+-2.0
+ 633352 prepare for the demise of size_request
+ 633398 Fix check for events on UI widgets
+ 633401 Fix warning from synthesized events with GdkDevice
+
+2.91.1
+======
+
+* Default build is now GTK+ 3 build
+* Mutter namespace prefix is removed, in favor of consistent
+  meta_ namespace prefixing [Owen]. Naming changes:
+    MutterWindow              => MetaWindowActor
+    mutter_get_windows        => meta_get_window_actors
+    mutter_plugin_get_windows => meta_plugin_get_window_actors
+* Add missing values in MetaKeyBindingAction - this fixes a problem where
+  key binding lookup wasn't working properly for some key bindings. [Dan]
+* Remove keysym parameter to meta_display_get_keybinding_action() - the
+  function expected the default keysym for the keycode to always be passed [Dan]
+* Clean up installed header files - in particular, theme-parser.h is merged
+  into a new public-only theme.h and private internals are moved to
+  theme-private.h.
+* Fix problems with antialiased rendering of themes [Brandon, Owen, Nickolas]
+* Fix problem with parsing color constants in themes [Jon, Owen]
+* Build fixes [Colin]
+* Miscellaneous bug fixes [Giovanni, Rico]
+
+Contributors:
+  Giovanni Campagna, Nickolas Lloyd, William Jon McCann, Owen Taylor,
+  Rico Tzschichholz, Colin Walters, Dan Winship, Brandon Wright
+
+Translations:
+  Fran Diéguez [gl], Yinghua Wang [zh_CN]
+
+Fixed bugs:
+ 628401 tint and line draw ops rendering issues
+ 628520 unfortunate namespacing
+ 631487 Fix drawing of <arc> theme elements
+ 632116 don't clobber gerrors
+ 632149 Fill in missing MetaKeyBindingAction values
+ 632155 meta_display_get_keybinding_action: remove keysym parameter
+ 632474 Remove MetaRegion
+ 632494 introspection: remove --allow-unprefixed
+
+2.91.0
+======
+
+ * Enable side-by-side tiling via a gesture of dragging to the left or right
+   edge of the screen. (enabled with an off-by-default GConf key) [Florian]
+ * Allow breaking out of maximization/tiling using a alt-middle-button window
+   resize [Owen, Florian]
+ * Add the ability to have modal dialogs attached to their parent window
+   (enabled with an off-by-default GConf key) [Maxim]
+ * Draw with Cairo rather than GDK [Florian, Benjamin]
+ * Add compatibility for changes in GTK+ 3
+   [Benjamin, Alban, Florian, Jasper, Matthias, Owen, Thierry]
+   - libmutter-private is now only installed for GTK+ 3 builds
+   - Theme parts of libmutter-private API are changed to take cairo_t
+     rather than GdkDrawable
+ * Update introspection build and annotations for new behavior of
+   g-ir-scanner [Colin]
+ * Fix bug that caused window menu options not to work [Owen]
+ * Fix misbehavior of Wine windows [Owen, Alban]
+ * Fix crashes from missing error traps [Adel]
+ * Build fixes [Colin, Florian, Owen, Rob, Tomas]
+ * Misc bug fixes [Adel, Jon, Owen, Nickolas, Tomas]
+ * Cleanups [Adel, Benjamin, Florian]
+
+Contributors:
+ Alban Browaeys, Matthias Clasen, Maxim Ermilov, Tomas Frydrych, Adel Gadllah,
+ Nickolas Lloyd, William Jon McCann, Florian Muellner, Benjamin Otte,
+ Thierry Reding, Rob Staudinger, Jasper St. Pierre, Owen Taylor, Colin Walters
+
+Translations:
+ Alexander Shopov [bg], Mario Blättermann [de], Ask H. Larsen [dk],
+ Michael Kotsarinis [el], Philip Withnall [en_UK], Jorge González [es],
+ Fran Diéguez [gl], Bruno Brouard, Claude Paroz [fr], Yaron Shahrabani [he],
+ Gabor Kelemen [hu], Luca Ferretti [it], Nils-Christoph Fiedler [nds],
+ Kjartan Maraas [nb], A S Alam [pa], Piotr Drąg [pl], Duarte Loreto [pt],
+ Antonio Fernandes C. Neto [pt_BR], Matej Urbančič [sl],
+ Miloš Popović [sr, sr@latin], Tirumurti Vasudevan [ta], Aron Xu [zh_CN],
+ Chao-Hsiung Liao [zh_HK, zh_TW]
+
+Fixed Bugs:
+ 597763 With >2 workspaces, Window menu "Move to Another Workspace" menu doesn't work
+ 598603 displays window size when moving terminal window
+ 606158 "Always on top" triggers Window manager warning:
+        Log level 8: meta_window_set_user_time: assertion `!window->override_redirect' failed
+ 610575 make meta_screen_set_cursor public
+ 613126 Do not cancel Alt+Tab grab due to Shift key events
+ 623235 BadDamage error from XSubtractDamage
+ 624757 Check for TFP usage after actually setting the pixmap
+ 625712 [mutter-shaped-texture] Remove material_workaround
+ 626583 Replace Gdk drawing API with cairo
+ 627087 Mipmap emulation not working
+ 627210 Crash with X error
+ 628544 introspection: Build with --warn-fatal, drop fix-meta-rectangle.py hack
+ 629127 build problem with recent gtk3
+ 629232 Multiple syntax errors in file mutter-message.c when building Mutter for
+        GNOME Shell dependencies
+ 629350 [mutter-shaped-texture] Use a base material for all instances
+ 629931 Allow breaking out from maximization/tiling during a mouse resize
+ 630195 Use GDK error trapping straight-up
+ 630203 Prepare mutter code for GTK3 rendering-cleanup
+ 630671 prepare mutter for the demise of GtkObject
+ 630843 gtk_window_set_visual was replaced by gtk_widget_set_visua
+ 631147 Adapt to GTK API changes
+ 631175 Mutter error compiling Gnome Shell
+
+2.31.5
+======
+
+* Support building with GTK+ 3.0 [Florian]
+* Remove deprecated usages for compatibility with GTK+ 3.0
+  [Claudio, Florian, Nickolas]
+* Export a boxed type for MetaRectangle [Owen]
+* Allow disabling -Werror with --enable-compile-warnings=yes [Nickolas]
+* Build fixes [Andreas, Florian, Owen]
+
+Contributors:
+ Nickolas Lloyd, Andreas Mueller, Florian Müllner, Claudio Saavedra,
+ Owen Taylor
+
+Translations:
+ Petr Kovar [cz], Jorge González [es], Fran Diéguez [gl],
+ Yaron Shahrabani [he], Matej Urbančič [sl]
+
+Fixed Bugs:
+ 587991 - Remove deprecated GTK+ symbols
+ 616275 - -Werror should not be enabled by default (or should be possible to disable)
+ 622303 - Allow building with Gtk+-3.0
+ 622800 - Make mutter more gtk+ 3.0 friendly
+ 623335 - Make MetaRectangle a boxed type
+ 623639 - Work around g-ir-scanner problem with Gdk.Rectangle
+ 624166 - src/core/util.c: Fix warning in case WITH_VERBOSE_MODE is not set
+
+2.31.4
+======
+
+* Clean up MutterPlugin effect interface [Maxim]
+* Track damage as the bounding box, a significant optimizations
+  for rapidly drawing clients [Robert]
+* Add meta_window_is_remote() [Colin]
+* Add meta_add_debug_topic() for turning on logging of
+  specific topics [Colin]
+* Fix bug with window unmaximization [Owen]
+
+Contributors:
+ Robert Bragg, Maxim Ermilov, Owen Taylor, Colin Walters
+
+Translations:
+ Yaron Shahrabani (he), Fran Diéguez (gl), Kjartan Maraas (nb), A S Alam (pa)
+
+Fixed Bugs:
+ 611838 - expose sub-stage redraws by streaming raw updates to ClutterX11TexturePixmap
+ 620585 - Add meta_window_is_remote
+ 620860 - function ‘meta_display_open’
+ 621082 - MutterPluginManager should call plugin->switch_workspace,
+          when screen doesn't have any window. Or function should be renamed.
+ 621413 - Maximize/Unmaximize not behaving properly for some non-gnome based programs
+
+2.31.2
+======
+
+* Theme enhancements [Owen]
+  - Add a flexible version mechanism for themes -
+    metacity-theme-3.xml is now supported, and can include
+    version="> 3.2" type attributes on the root element or
+    any subelement.
+  - Add frame_x_center/frame_y_center variables
+  - Allow a theme to turn on title ellipsization
+* Performance enhancements:
+  - Stream raw damage updates to ClutterX11TexturePixmap
+    to enable partial stage updates when windos change [Robert]
+  - Don't trap XErrors in meta_compositor_process_event [Adel]
+* Add meta_prefs_override_preference_location(); this allows
+  a plugin like GNOME Shell to redirect preferences to a
+  plugin-specific location. [Owen]
+* Support a _MUTTER_HINTS window property; this is a string
+  property holding key-value pairs with plugin-specific
+  interpretation [Tomas]
+* Build with GSEAL_ENABLE [Florian, Javier]
+* Add meta_display_get_leader_window() [Tomas]
+* Add meta_display_sort_windows_by_stacking [Colin]
+* Export
+   meta_display_get_last_user_time()
+   meta_display_xserver_time_is_before()
+   meta_window_foreach_ancestor(),
+   meta_window_foreach_transient()
+   meta_window_lower()
+   meta_window_raise()
+   meta_window_set_demands_attention()
+   meta_window_unset_demands_attention() [Colin]
+* Bug fixes [Dan, Edward, Owen, Tomas]
+* Build fixes [Owen, Dominique, Vincent]
+
+Contributors:
+ Robert Bragg, Adel Gadllah, Tomas Frydrych, Javier Jardón,
+ Dominique Leuenberger, Florian Müllner, Edward Sheldrake,
+ Owen Taylor, Vincent Untz, Colin Walters, Dan Winship
+
+Translations:
+ Xandru Armesto Fernandez (ast), Khaled Hosny (ar), Petr Kovar (cz),
+ Mario Blättermann, (de), Jorge González (es),
+ Inaki Larranaga Murgoitio [eu), Claude Paroz (fr), Luca Ferretti (it),
+ Gintautas Miliauskas (lt), Pavol Šimo (sk), Matej Urbančič (sl)
+
+Fixed Bugs:
+ 591842 - ellipsize titles when oversize
+ 592503 - Add a flexible version mechanism
+ 595496 - Use accessor functions instead direct access (use GSEAL GnomeGoal)
+ 596659 - Fix handling of grabbed key events
+ 613123 - Framework for plugin-specific per-window hint
+ 613125 - Add meta_display_get_leader_window()
+ 613127 - Keep num_workspaces key in sync with the actual workspace number
+ 613136 - remove over-restrictive assert from meta_prefs_get_workspace_name()
+ 613398 - Don't trap XErrors in meta_compositor_process_event
+ 615586 - Allow redirecting preferences to a different GConf key
+ 615672 - cant' compile mutter error: dereferencing pointer ‘p’ does break
+          strict-aliasing rules
+ 616050 - alt-tab infrastructure patches
+ 616274 - mutter from git fails with gcc 4.5 (on new warning)
+ 616546 - On dual screen maximized windows dragged to the second screen no
+          longer update their contents
+ 618138 - Work around COGL bug causing flash for new windows
+ 618613 - Fix crash with --sync option
+
+2.29.1
+======
+
+* Support and require Clutter 1.2 (Owen)
+* Add meta_display_get_keybinding_action() (Colin, Dan)
+* Add meta_window_get_wm_class_instance() (Tomas)
+* Remove workaround for bug fixed in intel driver Q2/2009 release (Robert)
+* Build fixes (Owen, Brian, Nguyễn Thái Ngọc Duy)
+
+Contributors:
+ Robert Bragg, Brian Cameron, Tomas Frydrych, Nguyễn Thái Ngọc Duy,
+ Owen Taylor, Colin Walters, Dan Winship
+
+Translations:
+ Alexander Shopov (bg), Mario Blättermann (de), Bruno Brouard (fr),
+ Nils-Christoph Fiedler (nds), Piotr Drąg (pl), Aron Xu (zh_CN)
+
+Fixed Bugs:
+
+ 610862 Support and require Clutter 1.1
+ 612506 mutter 2.29.0 fails to compile on Solaris
+ 613100 [MetaDisplay] Expose meta_display_get_keybinding_action
+ 613121 Remove workaround for multitexturing with old intel drivers
+ 613128 [MetaWindow] Accessor for the instance part of WM_CLASS property
+ 613278 meta_display_get_keybinding_action: strip out uninteresting modifiers
+
+2.29.0
+======
+
+* Improve appearance of scaled down windows using mipmap emulation (Owen)
+* Added signals: MetaDisplay::window-created, MetaDisplay::window-marked-urgent,
+  MetaDisplay::window-demands-attention, MetaWindow::unmanaged (Colin, Tomas)
+* Added properties: MetaWindow:demands-attention, MetaWindow:urgent,
+  MetaWindow:maximized-horizontally, MetaWindow:maximized-vertically (Florian, Tomas)
+* Fix nasty crash when workspace "struts" changed during a window move (Jon, Owen)
+* Bug fixes (Dan, Maxim, Neil, Owen, Tomas)
+* Build fixes (Colin, Emmanuele, Nickolas, Owen, Richard)
+* Merge Metacity changes since 2.26. Includes themable sound support
+  via libcanberra (Owen)
+
+Contributors
+ Emmanuele Bassi, Maxim Ermilov, Tomas Frydrych, Richard Hughes, Nickolas Lloyd,
+ Florian Müllner, Jon Nettleton, Neil Roberts, Owen Taylor, Colin Walters,
+ Dan Winship
+
+Additional Metacity contributors:
+ Thomas Hindoe Paaboel Andersen, Peter Bloomfield, Matthias Clasen,
+ Matt Kraai, Claude Paroz, Lennart Poettering, Ray Strode, Thomas Thurman,
+ Vincent Untz, Tomislav Vujec, Tomeu Vizoso, Travis Watkins, 'alexisdm59'
+
+Translations:
+ Khaled Hosny (ar), Petr Kovar (cz), Kjartan Maraas (nb), Djavan Fagundes (pt_BR),
+ Nils-Christoph Fiedler (nds), Matej Urbančič (sl), Vincent Untz
+
+Fixed Bugs:
+
+ 588065 Adds demands-attention signal to the window class
+ 591913 Fails to skip current window on alt+tab when another window is asking for attention
+ 592567 Dereferencing NULL in mutter_window_get_workspace()
+ 597052 Add signal to MetaDisplay so we know when a window has demanded-attention
+ 598289 Add "window-created" signal to MetaDisplay, "unmanaged" signal for MetaWindow
+ 598473 "XXX specified twice for this theme" messages not in sync with metacity.
+ 598600 "Visual Bell" option in Metacity causes Mutter to crash
+ 600068 notifications for window urgency hint
+ 601228 rdesktop does not get keypress signals
+ 602349 [PATCH] trivial - fix compilation warning in mutter
+ 602740 Remove XOR gc only used in removed reduced-resources mode
+ 602870 Fix compilation with older libGL
+ 604200 Compile issue: Use of deprecated clutter functions
+ 606388 mutter fails to build when using ld with --no-add-needed
+ 607125 Fails to build with latest introspection data
+ 607398 Do not use CGL_* symbols
+ 607746 reduce gconf roundtrips at startup
+ 608800 alt-dragging gimp windows crashes gnome-shell
+ 609350 Mutter does not support the COGL_DEBUG environment variable
+ 609546 meta_workspace_set_builtin_struts(): optimize out non-changes
+ 609585 Merge libcanberra usage from Metacity
+ 609657 Use cogl multitexture API when drawing MutterShapedTexture
+ 609665 Bug fixes from Fedora RPM
+ 609710 screencast recording broke
+ 610391 Fix crash on startup with list bindings
+
+2.28.0
+======
+
+* New exported API:
+    meta_window_get_stable_sequence() [Colin]
+    meta_window_get_transient_for_as_xid() [Tomas]
+    MutterScreen::workareas-changed signal [Tomas]
+* Fix a problem where changes processed from a Clutter event
+  callback wouldn't get handled before the screen was next
+  repainted, causing flashing [Owen]
+* Remove MetaAltTabHandler as no longer needed [Dan]
+* Bug fixes [Colin, Owen]
+
+Contributors:
+  Tomas Frydrych, Owen Taylor, Colin Walters, Dan Winship
+
+Translations:
+  Christian Kirbach (de), Claude Paroz (fr)
+
+2.27.5
+======
+
+ * Fix bug in GConf schemas where the overview activation key was specified as
+   '<Super_L>' not 'Super_L'.
+
+Contributors:
+
+ Colin Walters
+
+Translation:
+
+ Denis Arnaud (br)
+
+2.27.4
+======
+
+* Big code cleanup: when talking about multiple monitors, call them
+  "monitors", not "xineramas". [Dan]
+
+* Accessors added or made public:
+
+  meta_screen_get_n_monitors(), meta_screen_get_monitor_geometry()
+  meta_window_get_user_time() and MetaWindow:user-time property.
+
+  [Colin, Dan]
+
+* Set _GNOME_WM_KEYBINDINGS=Metacity,Mutter on the _NET_SUPPORTING_WM_CHECK
+  window so that gnome-keybinding-properties can figure out to show the
+  Metacity keybindings when Mutter is running. [Owen]
+
+* Bug and build fixes [Colin, Owen]
+
+Contributors:
+
+  Owen Taylor, Colin Walters, Dan Winship
+
+Translation:
+
+  Jorge González (es), Inaki Larranaga Murgoitio (eu), Gabor Kelemen (hu)
+
+Bugs fixed:
+
+  592393 - Clicking on a minimized window in the overview doesn't focus the window
+  593399 - Add meta_display_get_grab_op()
+  593404 - Make MUTTER_DEBUG_XINERAMA override active Xinerama
+  593407 - Add 'skip-taskbar' accessor to MetaWindow.
+  593686 - Add meta_screen_get_monitors()
+  594067 - Export a _GNOME_WM_KEYBINDINGS property
+
+2.27.3
+======
+
+* Key handling improvements:
+
+  - enforce that every key is handled no more than once.
+  - mutter_plugin_begin_modal() and mutter_plugin_begin_modal() allow
+    putting a plugin into a "modal" state where it has exclusive access
+    to key and pointer events.
+  - Add "tab_popup_select", "tab_pop_cancel" pseudo-keypress-handlers
+    that plugins can use to get notification when Alt-Tab ends
+
+  [Owen]
+
+* Accessors added or made public:
+
+   meta_window_is_override_redirect(), meta_window_is_mapped(),
+   meta_display_xwindow_is_a_no_focus_window(),
+   meta_display_get_grab_op(), meta_window_is_skip_taskbar(),
+   meta_window_is_modal(), all of errors.h
+
+ [Colin, Owen, Michael, Steve, Tomas]
+
+* Fix for various GTK+ deprecations [Javier]
+* Bug fixes [Colin, Frédéric, Owen, Thomas, Tomas, Volker]
+
+Contributors:
+
+  Javier Jardón, Steve Frécinaux, Tomas Frydrych, Michael Meeks,
+  Frédéric Péters, Volker Sobek, Owen Taylor, Thomas Thurman,
+  Colin Walters
+
+Translation:
+
+  Fran Dieguez (gl), Gabor Kelemen (hu), Daniel Nylander (se)
+
+Bugs fixed:
+
+  589457 - Fix up window property notification for "title"
+  590911 - Do not run plugin effects on WM startup
+  590978 - API to query whether window is in modal state
+  591367 - Be silent by default
+  591566 - install errors.h header ...
+  591788 - Add meta_window_is_override_redirect
+  591836 - mutter mishandles opacity
+  591913 - Fails to skip current window on alt+tab when another window is asking for attention
+  592393 - Clicking on a minimized window in the overview doesn't focus the window
+  592699 - Remove deprecated Encoding key from desktop files
+  592742 - Avoid accessing freed memory when being replaced
+  593399 - Add meta_display_get_grab_op()
+  593404 - Make MUTTER_DEBUG_XINERAMA override active Xinerama
+  593407 - Add 'skip-taskbar' accessor to MetaWindow.
+
+----------------------------- Older Metacity News -----------------------------
+
 2.26.0
 ======
 

configure.in

@@ -1,8 +1,8 @@
 AC_PREREQ(2.50)
 
-m4_define([mutter_major_version], [2])
-m4_define([mutter_minor_version], [91])
-m4_define([mutter_micro_version], [2])
+m4_define([mutter_major_version], [3])
+m4_define([mutter_minor_version], [1])
+m4_define([mutter_micro_version], [3.1])
 
 m4_define([mutter_version],
           [mutter_major_version.mutter_minor_version.mutter_micro_version])
@@ -61,73 +61,7 @@ AC_CHECK_SIZEOF(__int64)
 ## byte order
 AC_C_BIGENDIAN
 
-#### Warnings
-
-# Stay command-line compatible with the gnome-common configure option. Here
-# minimum/yes/maximum are the same, however.
-AC_ARG_ENABLE(compile_warnings,
-  AS_HELP_STRING([--enable-compile-warnings=@<:@no/minimum/yes/maximum/error@:>@],[Turn on compiler warnings]),,
-  enable_compile_warnings=error)
-
-changequote(,)dnl
-if test "$enable_compile_warnings" != no ; then
-  if test "x$GCC" = "xyes"; then
-    case " $CFLAGS " in
-    *[\ \	]-Wall[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wall" ;;
-    esac
-
-#   case " $CFLAGS " in
-#   *[\ \	]-Wshadow[\ \	]*) ;;
-#   *) CFLAGS="$CFLAGS -Wshadow" ;;
-#   esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wchar-subscripts[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wchar-subscripts" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wmissing-declarations[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wmissing-declarations" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wmissing-prototypes[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wmissing-prototypes" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wnested-externs[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wnested-externs" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wpointer-arith[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wpointer-arith" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wcast-align[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wcast-align" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wsign-compare[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wsign-compare" ;;
-    esac
-
-    if test "$enable_compile_warnings" = error; then
-      case " $CFLAGS " in
-      *[\ \	]-Werror[\ \	]*) ;;
-      *) CFLAGS="$CFLAGS -Werror" ;;
-      esac
-    fi
-  fi
-fi
-changequote([,])dnl
-
-GTK_MIN_VERSION=2.90.7
+GTK_MIN_VERSION=2.91.7
 CANBERRA_GTK=libcanberra-gtk3
 CANBERRA_GTK_VERSION=0.26
 
@@ -162,11 +96,6 @@ AC_ARG_ENABLE(startup-notification,
                  [disable mutter's startup notification support, for embedded/size-sensitive custom non-GNOME builds]),,
   enable_startup_notification=auto)
 
-AC_ARG_WITH(introspection,
-  AC_HELP_STRING([--without-introspection],
-                 [disable the use of GObject introspection]),,
-  with_introspection=auto)
-
 AC_ARG_WITH(libcanberra,
   AC_HELP_STRING([--without-libcanberra],
                  [disable the use of libcanberra for playing sounds]),,
@@ -280,24 +209,20 @@ else
   AC_MSG_ERROR([no. Mutter requires Clutter version $CLUTTER_VERSION.])
 fi
 
-if test x$with_introspection != xno; then
-  PKG_CHECK_MODULES(INTROSPECTION, gobject-introspection-1.0 >= 0.9.5, have_introspection=yes, have_introspection=no)
-  if test x$have_introspection=xyes; then
-    MUTTER_PC_MODULES="$MUTTER_PC_MODULES gobject-introspection-1.0"
-    AC_DEFINE(HAVE_INTROSPECTION, 1, [Define if GObject introspection is available])
-    G_IR_SCANNER=`$PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0`
-    AC_SUBST(G_IR_SCANNER)
-    G_IR_COMPILER=`$PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0`
-    AC_SUBST(G_IR_COMPILER)
-    G_IR_GENERATE=`$PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0`
-    AC_SUBST(G_IR_GENERATE)
-    GIRDIR=`$PKG_CONFIG --variable=girdir gobject-introspection-1.0`
-    AC_SUBST(GIRDIR)
-    TYPELIBDIR="$($PKG_CONFIG --variable=typelibdir gobject-introspection-1.0)"
-    AC_SUBST(TYPELIBDIR)
-  fi
+INTROSPECTION_VERSION=0.9.5
+GOBJECT_INTROSPECTION_CHECK([$INTROSPECTION_VERSION])
+
+if test x$found_introspection != xno; then
+  AC_DEFINE(HAVE_INTROSPECTION, 1, [Define if GObject introspection is available])
+  MUTTER_PC_MODULES="$MUTTER_PC_MODULES gobject-introspection-1.0"
+  # Since we don't make any guarantees about stability and we don't support
+  # parallel install, there's no real reason to change directories, filenames,
+  # etc. as we change the Mutter tarball version. Note that this must match
+  # api_version in src/Makefile.am
+  META_GIR=Meta_3_0_gir
+  # META_GIR=[Meta_]mutter_major_version[_]mutter_minor_version[_gir]
+  AC_SUBST(META_GIR)
 fi
-AM_CONDITIONAL(WITH_INTROSPECTION, test "$have_introspection" = "yes")
 
 AC_MSG_CHECKING([Xcursor])
 if $PKG_CONFIG xcursor; then
@@ -518,13 +443,79 @@ AM_PATH_PYTHON([2.5])
 # Use gnome-doc-utils:
 GNOME_DOC_INIT([0.8.0])
 
+#### Warnings (last since -Werror can disturb other tests)
+
+# Stay command-line compatible with the gnome-common configure option. Here
+# minimum/yes/maximum are the same, however.
+AC_ARG_ENABLE(compile_warnings,
+  AS_HELP_STRING([--enable-compile-warnings=@<:@no/minimum/yes/maximum/error@:>@],[Turn on compiler warnings]),,
+  enable_compile_warnings=error)
+
+changequote(,)dnl
+if test "$enable_compile_warnings" != no ; then
+  if test "x$GCC" = "xyes"; then
+    case " $CFLAGS " in
+    *[\ \	]-Wall[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wall" ;;
+    esac
+
+#   case " $CFLAGS " in
+#   *[\ \	]-Wshadow[\ \	]*) ;;
+#   *) CFLAGS="$CFLAGS -Wshadow" ;;
+#   esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wchar-subscripts[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wchar-subscripts" ;;
+    esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wmissing-declarations[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wmissing-declarations" ;;
+    esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wmissing-prototypes[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wmissing-prototypes" ;;
+    esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wnested-externs[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wnested-externs" ;;
+    esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wpointer-arith[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wpointer-arith" ;;
+    esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wcast-align[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wcast-align" ;;
+    esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wsign-compare[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wsign-compare" ;;
+    esac
+
+    if test "$enable_compile_warnings" = error; then
+      case " $CFLAGS " in
+      *[\ \	]-Werror[\ \	]*) ;;
+      *) CFLAGS="$CFLAGS -Werror" ;;
+      esac
+    fi
+  fi
+fi
+changequote([,])dnl
+
 AC_CONFIG_FILES([
 Makefile
 doc/Makefile
 doc/man/Makefile
 src/Makefile
 src/wm-tester/Makefile
-src/libmutter-private.pc
+src/libmutter.pc
 src/mutter-plugins.pc
 src/tools/Makefile
 src/compositor/plugins/Makefile
@@ -561,7 +552,7 @@ mutter-$VERSION
 	Solaris Xinerama:         ${use_solaris_xinerama}
 	Startup notification:     ${have_startup_notification}
 	libcanberra:              ${have_libcanberra}
-	Introspection:            ${have_introspection}
+	Introspection:            ${found_introspection}
 	Session management:       ${found_sm}
 	Shape extension:          ${found_shape}
 	Xsync:                    ${found_xsync}
@@ -574,7 +565,7 @@ if expr $MUTTER_MINOR_VERSION % 2 > /dev/null ; then
    stable_version=`expr $MUTTER_MINOR_VERSION - 1`
    echo "This is the UNSTABLE branch of mutter"
    echo -n "Use 2.$stable_version.x for stable "
-   echo    "(gnome-2-$stable_version branch in Subversion)"
+   echo    "(gnome-2-$stable_version branch in git)"
 else
    echo "This is the stable branch of mutter"
 fi

doc/theme-format.txt

@@ -22,6 +22,24 @@ This document has separate sections for each format version. You may
 want to read the document in reverse order, since the base features
 are discussed under version 1.
 
+New Features in Theme Format Version 3.3
+========================================
+
+Add two additional button background functions - left_single_background and
+right_single_background - for button groups with just a single button.
+
+There are now additional frame states to style left/right tiled windows
+differently ("tiled_left", "tiled_right", "tiled_left_and_shaded",
+"tiled_right_and_shaded").
+
+New Features in Theme Format Version 3.2
+========================================
+
+A new window type 'attached' is added for modal dialogs which are
+attached to their parent window. (When the attach_modal_dialogs preference
+is turned on.) If no style is defined for the 'attached' window type,
+the 'border' window type will be used instead.
+
 New Features in Theme Format Version 3.1
 ========================================
 

mutter.doap

@@ -6,6 +6,16 @@
 
   <name xml:lang="en">mutter</name>
   <shortdesc xml:lang="en">Window and compositing manager based on Clutter</shortdesc>
+  <description>Mutter is a window and compositing manager that displays and
+manages your desktop via OpenGL. Mutter combines a sophisticated display engine
+using the Clutter toolkit with solid window-management logic inherited from the
+Metacity window manager.
+
+While Mutter can be used stand-alone, it is primarily intended to be used as
+the display core of a larger system such as GNOME Shell. For this reason,
+Mutter is very extensible via plugins, which are used both to add fancy visual
+effects and to rework the window management behaviors to meet the needs of the
+environment.</description>
   <!--
   <homepage rdf:resource="http://www.gnome.org/" />
   -->

po/LINGUAS

@@ -22,6 +22,7 @@ dz
 el
 en_CA
 en_GB
+eo
 es
 et
 eu
@@ -82,6 +83,7 @@ te
 th
 tk
 tr
+ug 
 uk
 vi
 wa

po/POTFILES.in

@@ -1,5 +1,7 @@
 # List of source files containing translatable strings.
 # Please keep this file sorted alphabetically.
+src/compositor/compositor.c
+src/core/all-keybindings.h
 src/core/bell.c
 src/core/core.c
 src/core/delete.c
@@ -7,6 +9,7 @@ src/core/display.c
 src/core/errors.c
 src/core/keybindings.c
 src/core/main.c
+src/core/mutter.c
 src/core/prefs.c
 src/core/screen.c
 src/core/session.c
@@ -14,7 +17,6 @@ src/core/util.c
 src/core/window.c
 src/core/window-props.c
 src/core/xprops.c
-src/include/all-keybindings.h
 src/mutter.desktop.in
 src/mutter-wm.desktop.in
 src/mutter.schemas.in

src/Makefile.am

@@ -1,11 +1,30 @@
 # Flag build for parallelism; see https://savannah.gnu.org/patch/?6905
 .AUTOPARALLEL:
 
-lib_LTLIBRARIES = libmutter-private.la
+lib_LTLIBRARIES = libmutter.la
 
 SUBDIRS=wm-tester tools compositor/plugins
 
-INCLUDES=@MUTTER_CFLAGS@ -I $(srcdir)/include -I$(srcdir)/compositor -DMUTTER_LIBEXECDIR=\"$(libexecdir)\" -DHOST_ALIAS=\"@HOST_ALIAS@\" -DMUTTER_LOCALEDIR=\"$(prefix)/@DATADIRNAME@/locale\" -DMUTTER_PKGDATADIR=\"$(pkgdatadir)\" -DMUTTER_DATADIR=\"$(datadir)\" -DG_LOG_DOMAIN=\"mutter\" -DSN_API_NOT_YET_FROZEN=1 -DMUTTER_MAJOR_VERSION=$(MUTTER_MAJOR_VERSION) -DMUTTER_MINOR_VERSION=$(MUTTER_MINOR_VERSION) -DMUTTER_MICRO_VERSION=$(MUTTER_MICRO_VERSION) -DMUTTER_PLUGIN_API_VERSION=$(MUTTER_PLUGIN_API_VERSION) -DMUTTER_PKGLIBDIR=\"$(pkglibdir)\" -DMUTTER_PLUGIN_DIR=\"@MUTTER_PLUGIN_DIR@\"
+INCLUDES=								\
+	$(MUTTER_CFLAGS)						\
+	-I$(srcdir)							\
+	-I$(srcdir)/core						\
+	-I$(srcdir)/ui							\
+	-I$(srcdir)/compositor						\
+	-DMUTTER_LIBEXECDIR=\"$(libexecdir)\"				\
+	-DHOST_ALIAS=\"@HOST_ALIAS@\"					\
+	-DMUTTER_LOCALEDIR=\"$(prefix)/@DATADIRNAME@/locale\"		\
+	-DMUTTER_PKGDATADIR=\"$(pkgdatadir)\"				\
+	-DMUTTER_DATADIR=\"$(datadir)\"					\
+	-DG_LOG_DOMAIN=\"mutter\"					\
+	-DSN_API_NOT_YET_FROZEN=1					\
+	-DMUTTER_MAJOR_VERSION=$(MUTTER_MAJOR_VERSION)			\
+	-DMUTTER_MINOR_VERSION=$(MUTTER_MINOR_VERSION)			\
+	-DMUTTER_MICRO_VERSION=$(MUTTER_MICRO_VERSION)			\
+	-DMUTTER_PLUGIN_API_VERSION=$(MUTTER_PLUGIN_API_VERSION)	\
+	-DMUTTER_PKGLIBDIR=\"$(pkglibdir)\"				\
+	-DMUTTER_PLUGIN_DIR=\"@MUTTER_PLUGIN_DIR@\"			\
+	-DGETTEXT_PACKAGE=\"$(GETTEXT_PACKAGE)\"
 
 mutter_built_sources = \
 	mutter-marshal.h \
@@ -13,16 +32,20 @@ mutter_built_sources = \
 	mutter-enum-types.h \
 	mutter-enum-types.c
 
-mutter_SOURCES= 				\
+libmutter_la_SOURCES =				\
 	core/async-getprop.c			\
 	core/async-getprop.h			\
 	core/bell.c				\
 	core/bell.h				\
 	core/boxes.c				\
 	core/boxes-private.h			\
-	include/boxes.h				\
+	meta/boxes.h				\
+	compositor/cogl-utils.c			\
+	compositor/cogl-utils.h			\
 	compositor/compositor.c			\
 	compositor/compositor-private.h		\
+	compositor/meta-background-actor.c	\
+	compositor/meta-background-actor.h	\
 	compositor/meta-module.c		\
 	compositor/meta-module.h		\
 	compositor/meta-plugin.c		\
@@ -42,36 +65,36 @@ mutter_SOURCES= 				\
 	compositor/meta-window-shape.h		\
 	compositor/region-utils.c		\
 	compositor/region-utils.h		\
-	include/compositor.h			\
-	include/meta-plugin.h			\
-	include/meta-shadow-factory.h		\
-	include/meta-window-actor.h		\
-	include/compositor-mutter.h 		\
+	meta/compositor.h			\
+	meta/meta-plugin.h			\
+	meta/meta-shadow-factory.h		\
+	meta/meta-window-actor.h		\
+	meta/compositor-mutter.h 		\
+	core/above-tab-keycode.c		\
 	core/constraints.c			\
 	core/constraints.h			\
 	core/core.c				\
 	core/delete.c				\
 	core/display.c				\
 	core/display-private.h			\
-	include/display.h			\
+	meta/display.h				\
 	ui/draw-workspace.c			\
 	ui/draw-workspace.h			\
 	core/edge-resistance.c			\
 	core/edge-resistance.h			\
 	core/errors.c				\
-	include/errors.h			\
+	meta/errors.h				\
 	core/eventqueue.c			\
 	core/eventqueue.h			\
 	core/frame.c				\
-	core/frame-private.h			\
-	include/frame.h				\
+	core/frame.h				\
 	ui/gradient.c				\
-	ui/gradient.h				\
+	meta/gradient.h				\
 	core/group-private.h			\
 	core/group-props.c			\
 	core/group-props.h			\
 	core/group.c				\
-	include/group.h				\
+	meta/group.h				\
 	core/iconcache.c			\
 	core/iconcache.h			\
 	core/keybindings.c			\
@@ -81,11 +104,11 @@ mutter_SOURCES= 				\
 	core/place.c				\
 	core/place.h				\
 	core/prefs.c				\
-	include/prefs.h				\
+	meta/prefs.h				\
 	core/screen.c				\
 	core/screen-private.h			\
-	include/screen.h			\
-	include/types.h                         \
+	meta/screen.h				\
+	meta/types.h				\
 	core/session.c				\
 	core/session.h				\
 	core/stack.c				\
@@ -93,19 +116,19 @@ mutter_SOURCES= 				\
 	core/stack-tracker.c			\
 	core/stack-tracker.h			\
 	core/util.c				\
-	include/util.h				\
+	meta/util.h				\
 	core/window-props.c			\
 	core/window-props.h			\
 	core/window.c				\
 	core/window-private.h			\
-	include/window.h			\
+	meta/window.h				\
 	core/workspace.c			\
 	core/workspace-private.h		\
 	core/xprops.c				\
-	include/xprops.h			\
-	include/common.h			\
-	include/core.h				\
-	include/ui.h				\
+	core/xprops.h				\
+	meta/common.h				\
+	core/core.h				\
+	ui/ui.h					\
 	inlinepixbufs.h				\
 	ui/fixedtip.c				\
 	ui/fixedtip.h				\
@@ -116,71 +139,55 @@ mutter_SOURCES= 				\
 	ui/metaaccellabel.c			\
 	ui/metaaccellabel.h			\
 	ui/resizepopup.c			\
-	include/resizepopup.h			\
+	ui/resizepopup.h			\
 	ui/tabpopup.c				\
-	include/tabpopup.h				\
+	ui/tabpopup.h				\
 	ui/tile-preview.c			\
-	include/tile-preview.h			\
+	ui/tile-preview.h			\
 	ui/theme-parser.c			\
 	ui/theme.c				\
-	ui/theme.h				\
+	meta/theme.h				\
 	ui/theme-private.h			\
 	ui/ui.c					\
-	include/all-keybindings.h               \
+	core/all-keybindings.h			\
+	meta/preview-widget.h			\
+	ui/preview-widget.c			\
 	$(mutter_built_sources)
 
-# by setting libmutter_private_la_CFLAGS, the files shared with
-# mutter proper will be compiled with different names.
-libmutter_private_la_CFLAGS =
-libmutter_private_la_SOURCES=			\
-	core/boxes.c				\
-	include/boxes.h				\
-	ui/gradient.c				\
-	ui/gradient.h				\
-	core/util.c				\
-	include/util.h				\
-	include/common.h			\
-	ui/preview-widget.c			\
-	ui/preview-widget.h			\
-	ui/theme-parser.c			\
-	ui/theme.c				\
-	ui/theme.h
-
-libmutter_private_la_LDFLAGS = -no-undefined
-libmutter_private_la_LIBADD  = @MUTTER_LIBS@
+libmutter_la_LDFLAGS = -no-undefined
+libmutter_la_LIBADD  = $(MUTTER_LIBS)
 
 # Headers installed for plugins; introspected information will
 # be extracted into Mutter-<version>.gir
 libmutterinclude_base_headers =		\
-	include/boxes.h				\
-	ui/gradient.h				\
-	include/main.h				\
-	include/util.h				\
-	include/common.h			\
-	ui/theme.h				\
-	include/prefs.h				\
-	include/window.h			\
-	include/workspace.h			\
-	include/compositor.h			\
-	include/compositor-mutter.h		\
-	include/types.h				\
-	include/errors.h			\
-	include/screen.h			\
-	include/display.h			\
-	include/group.h				\
-	include/keybindings.h			\
-	include/meta-plugin.h			\
-	include/meta-shadow-factory.h		\
-	include/meta-window-actor.h
+	meta/boxes.h				\
+	meta/common.h				\
+	meta/compositor-mutter.h		\
+	meta/compositor.h			\
+	meta/display.h				\
+	meta/errors.h				\
+	meta/gradient.h				\
+	meta/group.h				\
+	meta/keybindings.h			\
+	meta/main.h				\
+	meta/meta-plugin.h			\
+	meta/meta-shadow-factory.h		\
+	meta/meta-window-actor.h		\
+	meta/prefs.h				\
+	meta/screen.h				\
+	meta/theme.h				\
+	meta/types.h				\
+	meta/util.h				\
+	meta/window.h				\
+	meta/workspace.h
 
 # Excluded from scanning for introspection but installed
-# preview-widget.h: only part of libmutter-private
 # atomnames.h: macros cause problems for scanning process
 libmutterinclude_extra_headers =		\
-	ui/preview-widget.h			\
-	include/atomnames.h
+	meta/preview-widget.h			\
+	meta/atomnames.h
 
-libmutterincludedir = $(includedir)/mutter/mutter-private
+libmutterincludedir = $(includedir)/mutter/meta
 
 libmutterinclude_HEADERS =			\
 	$(libmutterinclude_base_headers)	\
@@ -191,9 +198,18 @@ mutter_theme_viewer_SOURCES=  \
 
 bin_PROGRAMS=mutter mutter-theme-viewer
 
-api_version = $(MUTTER_MAJOR_VERSION).$(MUTTER_MINOR_VERSION)
+mutter_SOURCES = core/mutter.c
+mutter_LDADD = $(MUTTER_LIBS) libmutter.la
+
+if HAVE_INTROSPECTION
+include $(INTROSPECTION_MAKEFILE)
+
+# Since we don't make any guarantees about stability and we don't support
+# parallel install, there's no real reason to change directories, filenames,
+# etc. as we change the Mutter tarball version.
+#api_version = $(MUTTER_MAJOR_VERSION).$(MUTTER_MINOR_VERSION)
+api_version = 3.0
 
-if WITH_INTROSPECTION
 # These files are in package-private directories, even though they may be used
 # by plugins.  If you're writing a plugin, use g-ir-compiler --add-include-path
 # and g-ir-compiler --includedir.
@@ -203,50 +219,32 @@ gir_DATA = Meta-$(api_version).gir
 typelibdir = $(pkglibdir)
 typelib_DATA = Meta-$(api_version).typelib
 
-# We need to strip out the attribute that would point back to libmutter-introspect
-# so that libgirepository looks for symbols in the executable instead
-Meta-$(api_version).gir: $(G_IR_SCANNER) mutter $(libmutterinclude_HEADERS) $(mutter_SOURCES) Makefile
-	$(AM_V_GEN) pwd=`pwd` ;				\
-        cd $(srcdir) &&					\
-	$(G_IR_SCANNER)					\
-		--namespace=Meta			\
-		--nsversion=$(api_version)		\
-		--warn-all				\
-		--warn-error				\
-		--include=GObject-2.0			\
-		--include=Gdk-3.0			\
-		--include=Gtk-3.0			\
-		--include=Clutter-1.0			\
-		--pkg=clutter-1.0			\
-		--pkg=gtk+-3.0				\
-		--include=xlib-2.0			\
-		--include=xfixes-4.0			\
-		--program=$$pwd/mutter			\
-		mutter-enum-types.h			\
-		$(filter %.c,$(mutter_SOURCES))		\
-		$(libmutterinclude_base_headers)	\
-		$(INCLUDES)				\
-		-o $$pwd/$@
+INTROSPECTION_GIRS = Meta-$(api_version).gir
+
+Meta-$(api_version).gir: libmutter.la
+@META_GIR@_INCLUDES = GObject-2.0 Gdk-3.0 Gtk-3.0 Clutter-1.0 xlib-2.0 xfixes-4.0
+@META_GIR@_PACKAGES = clutter-1.0 gtk+-3.0
+@META_GIR@_CFLAGS = $(INCLUDES)
+@META_GIR@_LIBS = libmutter.la
+@META_GIR@_FILES =				\
+	mutter-enum-types.h			\
+	$(libmutterinclude_base_headers)	\
+	$(filter %.c,$(libmutter_la_SOURCES))
+@META_GIR@_SCANNERFLAGS = --warn-all --warn-error
 
-Meta-$(api_version).typelib: $(G_IR_COMPILER) Meta-$(api_version).gir
-	$(AM_V_GEN) LD_LIBRARY_PATH=$${LD_LIBRARY_PATH:+$$LD_LIBRARY_PATH:}. $(G_IR_COMPILER) Meta-$(api_version).gir -o $@
 endif
 
-EFENCE=
-mutter_LDADD=@MUTTER_LIBS@ $(EFENCE)
-mutter_LDFLAGS=-export-dynamic
+mutter_theme_viewer_LDADD= $(MUTTER_LIBS) libmutter.la
 
-mutter_theme_viewer_LDADD= @MUTTER_LIBS@ libmutter-private.la
-
-testboxes_SOURCES=include/util.h core/util.c include/boxes.h core/boxes.c core/testboxes.c
-testgradient_SOURCES=ui/gradient.h ui/gradient.c ui/testgradient.c
-testasyncgetprop_SOURCES=core/async-getprop.h core/async-getprop.c core/testasyncgetprop.c
+testboxes_SOURCES = core/testboxes.c
+testgradient_SOURCES = ui/testgradient.c
+testasyncgetprop_SOURCES = core/testasyncgetprop.c
 
 noinst_PROGRAMS=testboxes testgradient testasyncgetprop
 
-testboxes_LDADD= @MUTTER_LIBS@
-testgradient_LDADD= @MUTTER_LIBS@
-testasyncgetprop_LDADD= @MUTTER_LIBS@
+testboxes_LDADD = $(MUTTER_LIBS) libmutter.la
+testgradient_LDADD = $(MUTTER_LIBS) libmutter.la
+testasyncgetprop_LDADD = $(MUTTER_LIBS) libmutter.la
 
 @INTLTOOL_DESKTOP_RULE@
 
@@ -260,7 +258,7 @@ wmproperties_in_files=mutter-wm.desktop.in
 wmproperties_files=$(wmproperties_in_files:.desktop.in=.desktop)
 wmproperties_DATA = $(wmproperties_files)
 
-schemadir   = @GCONF_SCHEMA_FILE_DIR@
+schemadir   = $(GCONF_SCHEMA_FILE_DIR)
 schema_in_files = mutter.schemas.in
 schema_DATA = $(schema_in_files:.schemas.in=.schemas)
 
@@ -295,7 +293,7 @@ inlinepixbufs.h: $(IMAGES)
 
 pkgconfigdir = $(libdir)/pkgconfig
 
-pkgconfig_DATA = libmutter-private.pc mutter-plugins.pc
+pkgconfig_DATA = libmutter.pc mutter-plugins.pc
 
 EXTRA_DIST=$(desktopfiles_files) 	\
 	$(wmproperties_files)		\
@@ -303,7 +301,7 @@ EXTRA_DIST=$(desktopfiles_files) 	\
 	$(desktopfiles_in_files)	\
 	$(wmproperties_in_files)	\
 	$(schema_in_files)		\
-	libmutter-private.pc.in	\
+	libmutter.pc.in \
 	mutter-plugins.pc.in  \
 	mutter-enum-types.h.in \
 	mutter-enum-types.c.in \

src/compositor/cogl-utils.c

@@ -0,0 +1,110 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/*
+ * Utilities for use with Cogl
+ *
+ * Copyright 2010 Red Hat, Inc.
+ * Copyright 2010 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include "cogl-utils.h"
+
+/**
+ * meta_create_color_texture_4ub:
+ * @red:
+ * @green:
+ * @blue:
+ * @alpha:
+ * @flags: Optional flags for the texture, or %COGL_TEXTURE_NONE;
+ *   %COGL_TEXTURE_NO_SLICING is useful if the texture will be
+ *   repeated to create a constant color fill, since hardware
+ *   repeat can't be used for a sliced texture.
+ *
+ * Creates a texture that is a single pixel with the specified
+ * unpremultiplied color components.
+ *
+ * Return value: (transfer full): a newly created Cogl texture
+ */
+CoglHandle
+meta_create_color_texture_4ub (guint8           red,
+                               guint8           green,
+                               guint8           blue,
+                               guint8           alpha,
+                               CoglTextureFlags flags)
+{
+  CoglColor color;
+  guint8 pixel[4];
+
+  cogl_color_set_from_4ub (&color, red, green, blue, alpha);
+  cogl_color_premultiply (&color);
+
+  pixel[0] = cogl_color_get_red_byte (&color);
+  pixel[1] = cogl_color_get_green_byte (&color);
+  pixel[2] = cogl_color_get_blue_byte (&color);
+  pixel[3] = cogl_color_get_alpha_byte (&color);
+
+  return cogl_texture_new_from_data (1, 1,
+                                     flags,
+                                     COGL_PIXEL_FORMAT_RGBA_8888_PRE,
+                                     COGL_PIXEL_FORMAT_ANY,
+                                     4, pixel);
+}
+
+
+/* Based on gnome-shell/src/st/st-private.c:_st_create_texture_material.c */
+
+/**
+ * meta_create_texture_material:
+ * @src_texture: (allow-none): texture to use initially for the layer
+ *
+ * Creates a material with a single layer. Using a common template
+ * allows sharing a shader for different uses in Mutter. To share the same
+ * shader with all other materials that are just texture plus opacity
+ * would require Cogl fixes.
+ * (See http://bugzilla.clutter-project.org/show_bug.cgi?id=2425)
+ *
+ * Return value: (transfer full): a newly created Cogl material
+ */
+CoglHandle
+meta_create_texture_material (CoglHandle src_texture)
+{
+  static CoglHandle texture_material_template = COGL_INVALID_HANDLE;
+  CoglHandle material;
+
+  /* We use a material that has a dummy texture as a base for all
+     texture materials. The idea is that only the Cogl texture object
+     would be different in the children so it is likely that Cogl will
+     be able to share GL programs between all the textures. */
+  if (G_UNLIKELY (texture_material_template == COGL_INVALID_HANDLE))
+    {
+      CoglHandle dummy_texture;
+
+      dummy_texture = meta_create_color_texture_4ub (0xff, 0xff, 0xff, 0xff,
+                                                     COGL_TEXTURE_NONE);
+
+      texture_material_template = cogl_material_new ();
+      cogl_material_set_layer (texture_material_template, 0, dummy_texture);
+      cogl_handle_unref (dummy_texture);
+    }
+
+  material = cogl_material_copy (texture_material_template);
+
+  if (src_texture != COGL_INVALID_HANDLE)
+    cogl_material_set_layer (material, 0, src_texture);
+
+  return material;
+}

src/compositor/cogl-utils.h

@@ -1,7 +1,8 @@
 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
 /*
- * Copyright (C) 2008 Iain Holmes
+ * Utilities for use with Cogl
+ *
+ * Copyright 2010 Red Hat, Inc.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -19,13 +20,16 @@
  * 02111-1307, USA.
  */
 
-#ifndef META_FRAME_H
-#define META_FRAME_H
+#ifndef __META_COGL_UTILS_H__
+#define __META_COGL_UTILS_H__
 
-#include <X11/Xlib.h>
+#include <cogl/cogl.h>
 
-#include "types.h"
+CoglHandle meta_create_color_texture_4ub (guint8           red,
+                                          guint8           green,
+                                          guint8           blue,
+                                          guint8           alpha,
+                                          CoglTextureFlags flags);
+CoglHandle meta_create_texture_material  (CoglHandle src_texture);
 
-Window meta_frame_get_xwindow (MetaFrame *frame);
-
-#endif
+#endif /* __META_COGL_UTILS_H__ */

src/compositor/compositor-private.h

@@ -5,8 +5,8 @@
 
 #include <X11/extensions/Xfixes.h>
 
-#include "compositor.h"
-#include "display.h"
+#include <meta/compositor.h>
+#include <meta/display.h>
 #include "meta-plugin-manager.h"
 #include <clutter/clutter.h>
 
@@ -35,6 +35,7 @@ struct _MetaCompScreen
   MetaScreen            *screen;
 
   ClutterActor          *stage, *window_group, *overlay_group;
+  ClutterActor          *background_actor;
   ClutterActor		*hidden_group;
   GList                 *windows;
   GHashTable            *windows_by_xid;

src/compositor/compositor.c

@@ -4,18 +4,20 @@
 
 #include <clutter/x11/clutter-x11.h>
 
-#include "screen.h"
-#include "errors.h"
-#include "window.h"
+#include <meta/screen.h>
+#include <meta/errors.h>
+#include <meta/window.h>
 #include "compositor-private.h"
-#include "compositor-mutter.h"
+#include <meta/compositor-mutter.h>
 #include "xprops.h"
-#include "prefs.h"
-#include "meta-shadow-factory.h"
+#include <meta/prefs.h>
+#include <meta/main.h>
+#include <meta/meta-shadow-factory.h>
 #include "meta-window-actor-private.h"
 #include "meta-window-group.h"
-#include "../core/window-private.h" /* to check window->hidden */
-#include "../core/display-private.h" /* for meta_display_lookup_x_window() */
+#include "meta-background-actor.h"
+#include "window-private.h" /* to check window->hidden */
+#include "display-private.h" /* for meta_display_lookup_x_window() */
 #include <X11/extensions/shape.h>
 #include <X11/extensions/Xcomposite.h>
 
@@ -34,7 +36,7 @@ composite_at_least_version (MetaDisplay *display, int maj, int min)
   return (major > maj || (major == maj && minor >= min));
 }
 
-static void sync_actor_stacking (GList *windows);
+static void sync_actor_stacking (MetaCompScreen *info);
 
 static void
 meta_finish_workspace_switch (MetaCompScreen *info)
@@ -48,7 +50,7 @@ meta_finish_workspace_switch (MetaCompScreen *info)
   /*
    * Fix up stacking order in case the plugin messed it up.
    */
-  sync_actor_stacking (info->windows);
+  sync_actor_stacking (info);
 
 /*   printf ("... FINISHED DESKTOP SWITCH\n"); */
 
@@ -87,7 +89,7 @@ add_win (MetaWindow *window)
 
   meta_window_actor_new (window);
 
-  sync_actor_stacking (info->windows);
+  sync_actor_stacking (info);
 }
 
 static void
@@ -136,6 +138,22 @@ process_property_notify (MetaCompositor	*compositor,
 {
   MetaWindowActor *window_actor;
 
+  if (event->atom == compositor->atom_x_root_pixmap)
+    {
+      GSList *l;
+
+      for (l = meta_display_get_screens (compositor->display); l; l = l->next)
+        {
+	  MetaScreen  *screen = l->data;
+          if (event->window == meta_screen_get_xroot (screen))
+            {
+              MetaCompScreen *info = meta_screen_get_compositor_data (screen);
+              meta_background_actor_update (META_BACKGROUND_ACTOR (info->background_actor));
+              return;
+            }
+        }
+    }
+
   if (window == NULL)
     return;
 
@@ -236,6 +254,27 @@ meta_get_window_group_for_screen (MetaScreen *screen)
   return info->window_group;
 }
 
+/**
+ * meta_get_background_actor_for_screen:
+ * @screen: a #MetaScreen
+ *
+ * Gets the actor that draws the root window background under the windows.
+ * The root window background automatically tracks the image or color set
+ * by the environment.
+ *
+ * Returns: (transfer none): The background actor corresponding to @screen
+ */
+ClutterActor *
+meta_get_background_actor_for_screen (MetaScreen *screen)
+{
+  MetaCompScreen *info = meta_screen_get_compositor_data (screen);
+
+  if (!info)
+    return NULL;
+
+  return info->background_actor;
+}
+
 /**
  * meta_get_window_actors:
  * @screen: a #MetaScreen
@@ -436,20 +475,43 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
   gint            width, height;
   XWindowAttributes attr;
   long            event_mask;
+  guint           n_retries;
+  guint           max_retries;
 
   /* Check if the screen is already managed */
   if (meta_screen_get_compositor_data (screen))
     return;
 
-  meta_error_trap_push_with_return (display);
-  XCompositeRedirectSubwindows (xdisplay, xroot, CompositeRedirectManual);
-  XSync (xdisplay, FALSE);
+  if (meta_get_replace_current_wm ())
+    max_retries = 5;
+  else
+    max_retries = 1;
 
-  if (meta_error_trap_pop_with_return (display))
+  n_retries = 0;
+
+  /* Some compositors (like old versions of Mutter) might not properly unredirect
+   * subwindows before destroying the WM selection window; so we wait a while
+   * for such a compositor to exit before giving up.
+   */
+  while (TRUE)
     {
-      g_warning ("Another compositing manager is running on screen %i",
-                 screen_number);
-      return;
+      meta_error_trap_push_with_return (display);
+      XCompositeRedirectSubwindows (xdisplay, xroot, CompositeRedirectManual);
+      XSync (xdisplay, FALSE);
+
+      if (!meta_error_trap_pop_with_return (display))
+        break;
+
+      if (n_retries == max_retries)
+        {
+          /* This probably means that a non-WM compositor like xcompmgr is running;
+           * we have no way to get it to exit */
+          meta_fatal (_("Another compositing manager is already running on screen %i on display \"%s\"."),
+                      screen_number, display->name);
+        }
+
+      n_retries++;
+      g_usleep (G_USEC_PER_SEC);
     }
 
   info = g_new0 (MetaCompScreen, 1);
@@ -494,9 +556,14 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
   XSelectInput (xdisplay, xwin, event_mask);
 
   info->window_group = meta_window_group_new (screen);
+  info->background_actor = meta_background_actor_new (screen);
   info->overlay_group = clutter_group_new ();
   info->hidden_group = clutter_group_new ();
 
+  clutter_container_add (CLUTTER_CONTAINER (info->window_group),
+                         info->background_actor,
+                         NULL);
+
   clutter_container_add (CLUTTER_CONTAINER (info->stage),
                          info->window_group,
                          info->overlay_group,
@@ -507,18 +574,7 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
 
   info->plugin_mgr =
     meta_plugin_manager_get (screen);
-
-  if (info->plugin_mgr != meta_plugin_manager_get_default ())
-    {
-      /* The default plugin manager has been initialized during
-       * global preferences load.
-       */
-      if (!meta_plugin_manager_load (info->plugin_mgr))
-        g_critical ("failed to load plugins");
-    }
-
-  if (!meta_plugin_manager_initialize (info->plugin_mgr))
-    g_critical ("failed to initialize plugins");
+  meta_plugin_manager_initialize (info->plugin_mgr);
 
   /*
    * Delay the creation of the overlay window as long as we can, to avoid
@@ -555,6 +611,14 @@ void
 meta_compositor_unmanage_screen (MetaCompositor *compositor,
                                  MetaScreen     *screen)
 {
+  MetaDisplay    *display       = meta_screen_get_display (screen);
+  Display        *xdisplay      = meta_display_get_xdisplay (display);
+  Window          xroot         = meta_screen_get_xroot (screen);
+
+  /* This is the most important part of cleanup - we have to do this
+   * before giving up the window manager selection or the next
+   * window manager won't be able to redirect subwindows */
+  XCompositeUnredirectSubwindows (xdisplay, xroot, CompositeRedirectManual);
 }
 
 void
@@ -827,18 +891,73 @@ meta_compositor_switch_workspace (MetaCompositor     *compositor,
 }
 
 static void
-sync_actor_stacking (GList *windows)
+sync_actor_stacking (MetaCompScreen *info)
 {
+  GList *children;
   GList *tmp;
+  GList *old;
+  gboolean reordered;
 
-  /* NB: The first entry in the list is stacked the lowest */
+  /* NB: The first entries in the lists are stacked the lowest */
 
-  for (tmp = g_list_last (windows); tmp != NULL; tmp = tmp->prev)
+  /* Restacking will trigger full screen redraws, so it's worth a
+   * little effort to make sure we actually need to restack before
+   * we go ahead and do it */
+
+  children = clutter_container_get_children (CLUTTER_CONTAINER (info->window_group));
+  reordered = FALSE;
+
+  old = children;
+
+  /* We allow for actors in the window group other than the actors we
+   * know about, but it's up to a plugin to try and keep them stacked correctly
+   * (we really need extra API to make that reliable.)
+   */
+
+  /* Of the actors we know, the bottom actor should be the background actor */
+
+  while (old && old->data != info->background_actor && !META_IS_WINDOW_ACTOR (old->data))
+    old = old->next;
+  if (old == NULL || old->data != info->background_actor)
+    {
+      reordered = TRUE;
+      goto done_with_check;
+    }
+
+  /* Then the window actors should follow in sequence */
+
+  old = old->next;
+  for (tmp = info->windows; tmp != NULL; tmp = tmp->next)
+    {
+      while (old && !META_IS_WINDOW_ACTOR (old->data))
+        old = old->next;
+
+      /* old == NULL: someone reparented a window out of the window group,
+       * order undefined, always restack */
+      if (old == NULL || old->data != tmp->data)
+        {
+          reordered = TRUE;
+          goto done_with_check;
+        }
+
+      old = old->next;
+    }
+
+ done_with_check:
+
+  g_list_free (children);
+
+  if (!reordered)
+    return;
+
+  for (tmp = g_list_last (info->windows); tmp != NULL; tmp = tmp->prev)
     {
       MetaWindowActor *window_actor = tmp->data;
 
       clutter_actor_lower_bottom (CLUTTER_ACTOR (window_actor));
     }
+
+  clutter_actor_lower_bottom (info->background_actor);
 }
 
 void
@@ -876,7 +995,10 @@ meta_compositor_sync_stack (MetaCompositor  *compositor,
 
           if (old_window->hidden &&
               !meta_window_actor_effect_in_progress (old_actor))
-            old_stack = g_list_delete_link (old_stack, old_stack);
+            {
+              old_stack = g_list_delete_link (old_stack, old_stack);
+              old_actor = NULL;
+            }
           else
             break;
         }
@@ -927,7 +1049,7 @@ meta_compositor_sync_stack (MetaCompositor  *compositor,
       old_stack = g_list_remove (old_stack, actor);
     }
 
-  sync_actor_stacking (info->windows);
+  sync_actor_stacking (info);
 }
 
 void
@@ -984,6 +1106,8 @@ meta_compositor_sync_screen_size (MetaCompositor  *compositor,
 
   clutter_actor_set_size (info->stage, width, height);
 
+  meta_background_actor_screen_size_changed (META_BACKGROUND_ACTOR (info->background_actor));
+
   meta_verbose ("Changed size for stage on screen %d to %dx%d\n",
 		meta_screen_get_screen_number (screen),
 		width, height);
@@ -1095,3 +1219,47 @@ meta_get_overlay_window (MetaScreen *screen)
 
   return info->output;
 }
+
+#define FLASH_TIME_MS 50
+
+static void
+flash_out_completed (ClutterAnimation *animation,
+                     ClutterActor     *flash)
+{
+  clutter_actor_destroy (flash);
+}
+
+static void
+flash_in_completed (ClutterAnimation *animation,
+                    ClutterActor     *flash)
+{
+  clutter_actor_animate (flash, CLUTTER_EASE_IN_QUAD,
+                         FLASH_TIME_MS,
+                         "opacity", 0,
+                         "signal-after::completed", flash_out_completed, flash,
+                         NULL);
+}
+
+void
+meta_compositor_flash_screen (MetaCompositor *compositor,
+                              MetaScreen     *screen)
+{
+  ClutterActor *stage;
+  ClutterActor *flash;
+  ClutterColor black = { 0, 0, 0, 255 };
+  gfloat width, height;
+
+  stage = meta_get_stage_for_screen (screen);
+  clutter_actor_get_size (stage, &width, &height);
+
+  flash = clutter_rectangle_new_with_color (&black);
+  clutter_actor_set_size (flash, width, height);
+  clutter_actor_set_opacity (flash, 0);
+  clutter_container_add_actor (CLUTTER_CONTAINER (stage), flash);
+
+  clutter_actor_animate (flash, CLUTTER_EASE_OUT_QUAD,
+                         FLASH_TIME_MS,
+                         "opacity", 192,
+                         "signal-after::completed", flash_in_completed, flash,
+                         NULL);
+}

src/compositor/meta-background-actor.c

@@ -0,0 +1,423 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/*
+ * meta-background-actor.c: Actor for painting the root window background
+ *
+ * Copyright 2009 Sander Dijkhuis
+ * Copyright 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Portions adapted from gnome-shell/src/shell-global.c
+ */
+
+#include <config.h>
+
+#define COGL_ENABLE_EXPERIMENTAL_API
+#include <cogl/cogl-texture-pixmap-x11.h>
+
+#include <X11/Xatom.h>
+
+#include "cogl-utils.h"
+#include "compositor-private.h"
+#include <meta/errors.h>
+#include "meta-background-actor.h"
+
+struct _MetaBackgroundActorClass
+{
+  ClutterActorClass parent_class;
+};
+
+struct _MetaBackgroundActor
+{
+  ClutterActor parent;
+
+  CoglHandle material;
+  MetaScreen *screen;
+  cairo_region_t *visible_region;
+  float texture_width;
+  float texture_height;
+
+  guint have_pixmap : 1;
+};
+
+G_DEFINE_TYPE (MetaBackgroundActor, meta_background_actor, CLUTTER_TYPE_ACTOR);
+
+static void
+update_wrap_mode (MetaBackgroundActor *self)
+{
+  int width, height;
+  CoglMaterialWrapMode wrap_mode;
+
+  meta_screen_get_size (self->screen, &width, &height);
+
+  /* We turn off repeating when we have a full-screen pixmap to keep from
+   * getting artifacts from one side of the image sneaking into the other
+   * side of the image via bilinear filtering.
+   */
+  if (width == self->texture_width && height == self->texture_height)
+    wrap_mode = COGL_MATERIAL_WRAP_MODE_CLAMP_TO_EDGE;
+  else
+    wrap_mode = COGL_MATERIAL_WRAP_MODE_REPEAT;
+
+  cogl_material_set_layer_wrap_mode (self->material, 0, wrap_mode);
+}
+
+static void
+set_texture (MetaBackgroundActor *self,
+             CoglHandle           texture)
+{
+  MetaDisplay *display;
+
+  display = meta_screen_get_display (self->screen);
+
+  /* This may trigger destruction of an old texture pixmap, which, if
+   * the underlying X pixmap is already gone has the tendency to trigger
+   * X errors inside DRI. For safety, trap errors */
+  meta_error_trap_push (display);
+  cogl_material_set_layer (self->material, 0, texture);
+  meta_error_trap_pop (display);
+
+  self->texture_width = cogl_texture_get_width (texture);
+  self->texture_height = cogl_texture_get_height (texture);
+
+  update_wrap_mode (self);
+
+  clutter_actor_queue_redraw (CLUTTER_ACTOR (self));
+}
+
+/* Sets our material to paint with a 1x1 texture of the stage's background
+ * color; doing this when we have no pixmap allows the application to turn
+ * off painting the stage. There might be a performance benefit to
+ * painting in this case with a solid color, but the normal solid color
+ * case is a 1x1 root pixmap, so we'd have to reverse-engineer that to
+ * actually pick up the (small?) performance win. This is just a fallback.
+ */
+static void
+set_texture_to_stage_color (MetaBackgroundActor *self)
+{
+  ClutterActor *stage = meta_get_stage_for_screen (self->screen);
+  ClutterColor color;
+  CoglHandle texture;
+
+  clutter_stage_get_color (CLUTTER_STAGE (stage), &color);
+
+  /* Slicing will prevent COGL from using hardware texturing for
+   * the tiled 1x1 pixmap, and will cause it to draw the window
+   * background in millions of separate 1x1 rectangles */
+  texture = meta_create_color_texture_4ub (color.red, color.green,
+                                           color.blue, 0xff,
+                                           COGL_TEXTURE_NO_SLICING);
+  set_texture (self, texture);
+  cogl_handle_unref (texture);
+}
+
+static void
+on_notify_stage_color (GObject             *stage,
+                       GParamSpec          *pspec,
+                       MetaBackgroundActor *self)
+{
+  if (!self->have_pixmap)
+    set_texture_to_stage_color (self);
+}
+
+static void
+meta_background_actor_dispose (GObject *object)
+{
+  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (object);
+
+  meta_background_actor_set_visible_region (self, NULL);
+
+  if (self->material != COGL_INVALID_HANDLE)
+    {
+      cogl_handle_unref (self->material);
+      self->material = COGL_INVALID_HANDLE;
+    }
+
+  if (self->screen != NULL)
+    {
+      ClutterActor *stage = meta_get_stage_for_screen (self->screen);
+      g_signal_handlers_disconnect_by_func (stage,
+                                            (gpointer) on_notify_stage_color,
+                                            self);
+      self->screen = NULL;
+    }
+}
+
+static void
+meta_background_actor_get_preferred_width (ClutterActor *actor,
+                                           gfloat        for_height,
+                                           gfloat       *min_width_p,
+                                           gfloat       *natural_width_p)
+{
+  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (actor);
+  int width, height;
+
+  meta_screen_get_size (self->screen, &width, &height);
+
+  if (min_width_p)
+    *min_width_p = width;
+  if (natural_width_p)
+    *natural_width_p = height;
+}
+
+static void
+meta_background_actor_get_preferred_height (ClutterActor *actor,
+                                            gfloat        for_width,
+                                            gfloat       *min_height_p,
+                                            gfloat       *natural_height_p)
+
+{
+  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (actor);
+  int width, height;
+
+  meta_screen_get_size (self->screen, &width, &height);
+
+  if (min_height_p)
+    *min_height_p = height;
+  if (natural_height_p)
+    *natural_height_p = height;
+}
+
+static void
+meta_background_actor_paint (ClutterActor *actor)
+{
+  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (actor);
+  guchar opacity = clutter_actor_get_paint_opacity (actor);
+  int width, height;
+
+  meta_screen_get_size (self->screen, &width, &height);
+
+  cogl_material_set_color4ub (self->material,
+                              opacity, opacity, opacity, opacity);
+
+  cogl_set_source (self->material);
+
+  if (self->visible_region)
+    {
+      int n_rectangles = cairo_region_num_rectangles (self->visible_region);
+      int i;
+
+      for (i = 0; i < n_rectangles; i++)
+        {
+          cairo_rectangle_int_t rect;
+          cairo_region_get_rectangle (self->visible_region, i, &rect);
+
+          cogl_rectangle_with_texture_coords (rect.x, rect.y,
+                                              rect.x + rect.width, rect.y + rect.height,
+                                              rect.x / self->texture_width,
+                                              rect.y / self->texture_height,
+                                              (rect.x + rect.width) / self->texture_width,
+                                              (rect.y + rect.height) / self->texture_height);
+        }
+    }
+  else
+    {
+      cogl_rectangle_with_texture_coords (0.0f, 0.0f,
+                                          width, height,
+                                          0.0f, 0.0f,
+                                          width / self->texture_width,
+                                          height / self->texture_height);
+    }
+}
+
+#if CLUTTER_CHECK_VERSION(1, 5, 2)
+static gboolean
+meta_background_actor_get_paint_volume (ClutterActor       *actor,
+                                        ClutterPaintVolume *volume)
+{
+  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (actor);
+  int width, height;
+
+  meta_screen_get_size (self->screen, &width, &height);
+
+  clutter_paint_volume_set_width (volume, width);
+  clutter_paint_volume_set_height (volume, height);
+
+  return TRUE;
+}
+#endif
+
+static void
+meta_background_actor_class_init (MetaBackgroundActorClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
+
+  object_class->dispose = meta_background_actor_dispose;
+
+  actor_class->get_preferred_width = meta_background_actor_get_preferred_width;
+  actor_class->get_preferred_height = meta_background_actor_get_preferred_height;
+  actor_class->paint = meta_background_actor_paint;
+#if CLUTTER_CHECK_VERSION(1, 5, 2)
+  actor_class->get_paint_volume = meta_background_actor_get_paint_volume;
+#endif
+}
+
+static void
+meta_background_actor_init (MetaBackgroundActor *background_actor)
+{
+}
+
+/**
+ * @screen: the #MetaScreen
+ * meta_background_actor_new:
+ *
+ * Creates a new actor to draw the background for the given screen.
+ *
+ * Return value: (transfer none): the newly created background actor
+ */
+ClutterActor *
+meta_background_actor_new (MetaScreen *screen)
+{
+  MetaBackgroundActor *self;
+  ClutterActor *stage;
+
+  g_return_val_if_fail (META_IS_SCREEN (screen), NULL);
+
+  self = g_object_new (META_TYPE_BACKGROUND_ACTOR, NULL);
+
+  self->screen = screen;
+
+  self->material = meta_create_texture_material (NULL);
+  cogl_material_set_layer_wrap_mode (self->material, 0,
+                                     COGL_MATERIAL_WRAP_MODE_REPEAT);
+
+  stage = meta_get_stage_for_screen (self->screen);
+  g_signal_connect (stage, "notify::color",
+                    G_CALLBACK (on_notify_stage_color), self);
+
+  meta_background_actor_update (self);
+
+  return CLUTTER_ACTOR (self);
+}
+
+/**
+ * meta_background_actor_update:
+ * @self: a #MetaBackgroundActor
+ *
+ * Refetches the _XROOTPMAP_ID property for the root window and updates
+ * the contents of the background actor based on that. There's no attempt
+ * to optimize out pixmap values that don't change (since a root pixmap
+ * could be replaced by with another pixmap with the same ID under some
+ * circumstances), so this should only be called when we actually receive
+ * a PropertyNotify event for the property.
+ */
+void
+meta_background_actor_update (MetaBackgroundActor *self)
+{
+  MetaDisplay *display;
+  MetaCompositor *compositor;
+  Atom type;
+  int format;
+  gulong nitems;
+  gulong bytes_after;
+  guchar *data;
+  Pixmap root_pixmap_id;
+
+  g_return_if_fail (META_IS_BACKGROUND_ACTOR (self));
+
+  display = meta_screen_get_display (self->screen);
+  compositor = meta_display_get_compositor (display);
+
+  root_pixmap_id = None;
+  if (!XGetWindowProperty (meta_display_get_xdisplay (display),
+                           meta_screen_get_xroot  (self->screen),
+                           compositor->atom_x_root_pixmap,
+                           0, LONG_MAX,
+                           False,
+                           AnyPropertyType,
+                           &type, &format, &nitems, &bytes_after, &data) &&
+      type != None)
+  {
+     /* Got a property. */
+     if (type == XA_PIXMAP && format == 32 && nitems == 1)
+       {
+         /* Was what we expected. */
+         root_pixmap_id = *(Pixmap *)data;
+       }
+
+     XFree(data);
+  }
+
+  if (root_pixmap_id != None)
+    {
+      CoglHandle texture;
+
+      meta_error_trap_push (display);
+      texture = cogl_texture_pixmap_x11_new (root_pixmap_id, FALSE);
+      meta_error_trap_pop (display);
+
+      if (texture != COGL_INVALID_HANDLE)
+        {
+          set_texture (self, texture);
+          cogl_handle_unref (texture);
+
+          self->have_pixmap = True;
+          return;
+        }
+    }
+
+  self->have_pixmap = False;
+  set_texture_to_stage_color (self);
+}
+
+/**
+ * meta_background_actor_set_visible_region:
+ * @self: a #MetaBackgroundActor
+ * @visible_region: (allow-none): the area of the actor (in allocate-relative
+ *   coordinates) that is visible.
+ *
+ * Sets the area of the background that is unobscured by overlapping windows.
+ * This is used to optimize and only paint the visible portions.
+ */
+void
+meta_background_actor_set_visible_region (MetaBackgroundActor *self,
+                                          cairo_region_t      *visible_region)
+{
+  g_return_if_fail (META_IS_BACKGROUND_ACTOR (self));
+
+  if (self->visible_region)
+    {
+      cairo_region_destroy (self->visible_region);
+      self->visible_region = NULL;
+    }
+
+  if (visible_region)
+    {
+      cairo_rectangle_int_t screen_rect = { 0 };
+      meta_screen_get_size (self->screen, &screen_rect.width, &screen_rect.height);
+
+      /* Doing the intersection here is probably unnecessary - MetaWindowGroup
+       * should never compute a visible area that's larger than the root screen!
+       * but it's not that expensive and adds some extra robustness.
+       */
+      self->visible_region = cairo_region_create_rectangle (&screen_rect);
+      cairo_region_intersect (self->visible_region, visible_region);
+    }
+}
+
+/**
+ * meta_background_actor_screen_size_changed:
+ * @self: a #MetaBackgroundActor
+ *
+ * Called by the compositor when the size of the #MetaScreen changes
+ */
+void
+meta_background_actor_screen_size_changed (MetaBackgroundActor *self)
+{
+  update_wrap_mode (self);
+  clutter_actor_queue_relayout (CLUTTER_ACTOR (self));
+}

src/compositor/meta-background-actor.h

@@ -0,0 +1,58 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/*
+ * meta-background-actor.h: Actor for painting the root window background
+ *
+ * Copyright 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef META_BACKGROUND_ACTOR_H
+#define META_BACKGROUND_ACTOR_H
+
+#include <clutter/clutter.h>
+
+#include <meta/screen.h>
+
+/**
+ * MetaBackgroundActor:
+ *
+ * This class handles tracking and painting the root window background.
+ * By integrating with #MetaWindowGroup we can avoid painting parts of
+ * the background that are obscured by other windows.
+ */
+
+#define META_TYPE_BACKGROUND_ACTOR            (meta_background_actor_get_type ())
+#define META_BACKGROUND_ACTOR(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActor))
+#define META_BACKGROUND_ACTOR_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActorClass))
+#define META_IS_BACKGROUND_ACTOR(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_BACKGROUND_ACTOR))
+#define META_IS_BACKGROUND_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_BACKGROUND_ACTOR))
+#define META_BACKGROUND_ACTOR_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActorClass))
+
+typedef struct _MetaBackgroundActor        MetaBackgroundActor;
+typedef struct _MetaBackgroundActorClass   MetaBackgroundActorClass;
+typedef struct _MetaBackgroundActorPrivate MetaBackgroundActorPrivate;
+
+GType meta_background_actor_get_type (void);
+
+ClutterActor *meta_background_actor_new (MetaScreen *screen);
+
+void meta_background_actor_update              (MetaBackgroundActor *actor);
+void meta_background_actor_set_visible_region  (MetaBackgroundActor *self,
+                                                cairo_region_t      *visible_region);
+void meta_background_actor_screen_size_changed (MetaBackgroundActor *self);
+
+#endif /* META_BACKGROUND_ACTOR_H */

src/compositor/meta-module.c

@@ -21,7 +21,7 @@
  * 02111-1307, USA.
  */
 
-#include "meta-plugin.h"
+#include <meta/meta-plugin.h>
 #include "meta-module.h"
 
 #include <gmodule.h>

src/compositor/meta-plugin-manager.c

@@ -24,20 +24,18 @@
 #include "config.h"
 #include "compositor-private.h"
 #include "meta-plugin-manager.h"
-#include "prefs.h"
-#include "errors.h"
-#include "workspace.h"
+#include <meta/prefs.h>
+#include <meta/errors.h>
+#include <meta/workspace.h>
 #include "meta-module.h"
-#include "../core/window-private.h"
+#include "window-private.h"
 
 #include <string.h>
+#include <stdlib.h>
 
 #include <clutter/x11/clutter-x11.h>
 
-/*
- * There is only one instace of each module per the process.
- */
-static GHashTable *plugin_modules = NULL;
+static GSList *plugin_types;
 
 /*
  * We have one "default plugin manager" that acts for the first screen,
@@ -45,270 +43,79 @@ static GHashTable *plugin_modules = NULL;
  * plugin managers for each screen. (This is ugly. Probably we should
  * have one plugin manager and only make the plugins per-screen.)
  */
-
 static MetaPluginManager *default_plugin_manager;
 
-static gboolean meta_plugin_manager_reload (MetaPluginManager *plugin_mgr);
-
 struct MetaPluginManager
 {
   MetaScreen   *screen;
 
-  GList /* MetaPlugin */       *plugins;  /* TODO -- maybe use hash table */
-  GList                        *unload;  /* Plugins that are disabled and pending unload */
-
-  guint         idle_unload_id;
+  GList /* MetaPlugin */ *plugins;  /* TODO -- maybe use hash table */
 };
 
 /*
- * Checks that the plugin is compatible with the WM and sets up the plugin
- * struct.
+ * Loads the given plugin.
  */
-static MetaPlugin *
-meta_plugin_load (MetaPluginManager *mgr,
-                  MetaModule        *module,
-                  const gchar       *params)
-{
-  MetaPlugin *plugin = NULL;
-  GType         plugin_type = meta_module_get_plugin_type (module);
-
-  if (!plugin_type)
-    {
-      g_warning ("Plugin type not registered !!!");
-      return NULL;
-    }
-
-  plugin = g_object_new (plugin_type,
-                         "params", params,
-                         NULL);
-
-  return plugin;
-}
-
-/*
- * Attempst to unload a plugin; returns FALSE if plugin cannot be unloaded at
- * present (e.g., and effect is in progress) and should be scheduled for
- * removal later.
- */
-static gboolean
-meta_plugin_unload (MetaPlugin *plugin)
-{
-  if (meta_plugin_running (plugin))
-    {
-      g_object_set (plugin, "disabled", TRUE, NULL);
-      return FALSE;
-    }
-
-  g_object_unref (plugin);
-
-  return TRUE;
-}
-
-/*
- * Iddle callback to remove plugins that could not be removed directly and are
- * pending for removal.
- */
-static gboolean
-meta_plugin_manager_idle_unload (MetaPluginManager *plugin_mgr)
-{
-  GList *l = plugin_mgr->unload;
-  gboolean dont_remove = TRUE;
-
-  while (l)
-    {
-      MetaPlugin *plugin = l->data;
-
-      if (meta_plugin_unload (plugin))
-        {
-          /* Remove from list */
-          GList *p = l->prev;
-          GList *n = l->next;
-
-          if (!p)
-            plugin_mgr->unload = n;
-          else
-            p->next = n;
-
-          if (n)
-            n->prev = p;
-
-          g_list_free_1 (l);
-
-          l = n;
-        }
-      else
-        l = l->next;
-    }
-
-  if (!plugin_mgr->unload)
-    {
-      /* If no more unloads are pending, remove the handler as well */
-      dont_remove = FALSE;
-      plugin_mgr->idle_unload_id = 0;
-    }
-
-  return dont_remove;
-}
-
-/*
- * Unloads all plugins
- */
-static void
-meta_plugin_manager_unload (MetaPluginManager *plugin_mgr)
-{
-  GList *plugins = plugin_mgr->plugins;
-
-  while (plugins)
-    {
-      MetaPlugin *plugin = plugins->data;
-
-      /* If the plugin could not be removed, move it to the unload list */
-      if (!meta_plugin_unload (plugin))
-        {
-          plugin_mgr->unload = g_list_prepend (plugin_mgr->unload, plugin);
-
-          if (!plugin_mgr->idle_unload_id)
-            {
-              plugin_mgr->idle_unload_id = g_idle_add ((GSourceFunc)
-                            meta_plugin_manager_idle_unload,
-                            plugin_mgr);
-            }
-        }
-
-      plugins = plugins->next;
-    }
-
-  g_list_free (plugin_mgr->plugins);
-  plugin_mgr->plugins = NULL;
-}
-
-static void
-prefs_changed_callback (MetaPreference pref,
-                        void          *data)
-{
-  MetaPluginManager *plugin_mgr = data;
-
-  if (pref == META_PREF_CLUTTER_PLUGINS)
-    {
-      meta_plugin_manager_reload (plugin_mgr);
-    }
-}
-
-static MetaModule *
-meta_plugin_manager_get_module (const gchar *path)
-{
-  MetaModule *module = g_hash_table_lookup (plugin_modules, path);
-
-  if (!module &&
-      (module = g_object_new (META_TYPE_MODULE, "path", path, NULL)))
-    {
-      g_hash_table_insert (plugin_modules, g_strdup (path), module);
-    }
-
-  return module;
-}
-
-/*
- * Loads all plugins listed in gconf registry.
- */
-gboolean
-meta_plugin_manager_load (MetaPluginManager *plugin_mgr)
+void
+meta_plugin_manager_load (MetaPluginManager *plugin_mgr,
+                          const gchar       *plugin_name)
 {
   const gchar *dpath = MUTTER_PLUGIN_DIR "/";
-  GSList      *plugins, *fallback = NULL;
+  gchar       *path;
+  MetaModule  *module;
+  GType        plugin_type;
 
-  plugins = meta_prefs_get_clutter_plugins ();
+  if (g_path_is_absolute (plugin_name))
+    path = g_strdup (plugin_name);
+  else
+    path = g_strconcat (dpath, plugin_name, ".so", NULL);
 
-  if (!plugins)
+  module = g_object_new (META_TYPE_MODULE, "path", path, NULL);
+  if (!module || !g_type_module_use (G_TYPE_MODULE (module)))
     {
-      /*
-       * If no plugins are specified, try to load the default plugin.
+      /* This is fatal under the assumption that a monitoring
+       * process like gnome-session will take over and handle
+       * our untimely exit.
        */
-      fallback = g_slist_append (fallback, "default");
-      plugins = fallback;
+      g_printerr ("Unable to load plugin module [%s]: %s",
+                  path, g_module_error());
+      exit (1);
     }
 
-  while (plugins)
-    {
-      gchar   *plugin_string;
-      gchar   *params;
+  plugin_type = meta_module_get_plugin_type (module);
+  meta_plugin_manager_register (plugin_mgr, plugin_type);
 
-      plugin_string = g_strdup (plugins->data);
-
-      if (plugin_string)
-        {
-          MetaModule *module;
-          gchar        *path;
-
-          params = strchr (plugin_string, ':');
-
-          if (params)
-            {
-              *params = 0;
-              ++params;
-            }
-
-          if (g_path_is_absolute (plugin_string))
-            path = g_strdup (plugin_string);
-          else
-            path = g_strconcat (dpath, plugin_string, ".so", NULL);
-
-          module = meta_plugin_manager_get_module (path);
-
-          if (module)
-            {
-              gboolean      use_succeeded;
-
-              /*
-               * This dlopens the module and registers the plugin type with the
-               * GType system, if the module is not already loaded.  When we
-               * create a plugin, the type system also calls g_type_module_use()
-               * to guarantee the module will not be unloaded during the plugin
-               * life time. Consequently we can unuse() the module again.
-               */
-              use_succeeded = g_type_module_use (G_TYPE_MODULE (module));
-
-              if (use_succeeded)
-                {
-                  MetaPlugin *plugin = meta_plugin_load (plugin_mgr, module, params);
-
-                  if (plugin)
-                    plugin_mgr->plugins = g_list_prepend (plugin_mgr->plugins, plugin);
-                  else
-                    g_warning ("Plugin load for [%s] failed", path);
-
-                  g_type_module_unuse (G_TYPE_MODULE (module));
-                }
-            }
-          else
-            g_warning ("Unable to load plugin module [%s]: %s",
-                       path, g_module_error());
-
-          g_free (path);
-          g_free (plugin_string);
-        }
-
-      plugins = plugins->next;
-    }
-
-
-  if (fallback)
-    g_slist_free (fallback);
-
-  if (plugin_mgr->plugins != NULL)
-    {
-      meta_prefs_add_listener (prefs_changed_callback, plugin_mgr);
-      return TRUE;
-    }
-
-  return FALSE;
+  g_type_module_unuse (G_TYPE_MODULE (module));
+  g_free (path);
 }
 
-gboolean
+/*
+ * Registers the given plugin type
+ */
+void
+meta_plugin_manager_register (MetaPluginManager *plugin_mgr,
+                              GType              plugin_type)
+{
+  MetaPlugin  *plugin;
+
+  plugin_types = g_slist_prepend (plugin_types, GSIZE_TO_POINTER (plugin_type));
+
+  plugin = g_object_new (plugin_type, NULL);
+  plugin_mgr->plugins = g_list_prepend (plugin_mgr->plugins, plugin);
+}
+
+void
 meta_plugin_manager_initialize (MetaPluginManager *plugin_mgr)
 {
   GList *iter;
 
+  if (!plugin_mgr->plugins)
+    {
+      /*
+       * If no plugins are specified, load the default plugin.
+       */
+      meta_plugin_manager_load (plugin_mgr, "default");
+    }
+
   for (iter = plugin_mgr->plugins; iter; iter = iter->next)
     {
       MetaPlugin *plugin = (MetaPlugin*) iter->data;
@@ -321,26 +128,6 @@ meta_plugin_manager_initialize (MetaPluginManager *plugin_mgr)
       if (klass->start)
         klass->start (plugin);
     }
-
-  return TRUE;
-}
-
-/*
- * Reloads all plugins
- */
-static gboolean
-meta_plugin_manager_reload (MetaPluginManager *plugin_mgr)
-{
-  /* TODO -- brute force; should we build a list of plugins to load and list of
-   * plugins to unload? We are probably not going to have large numbers of
-   * plugins loaded at the same time, so it might not be worth it.
-   */
-
-  /* Prevent stale grabs on unloaded plugins */
-  meta_check_end_modal (plugin_mgr->screen);
-
-  meta_plugin_manager_unload (plugin_mgr);
-  return meta_plugin_manager_load (plugin_mgr);
 }
 
 static MetaPluginManager *
@@ -348,15 +135,8 @@ meta_plugin_manager_new (MetaScreen *screen)
 {
   MetaPluginManager *plugin_mgr;
 
-  if (!plugin_modules)
-    {
-      plugin_modules = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
-                                              NULL);
-    }
-
   plugin_mgr = g_new0 (MetaPluginManager, 1);
-
-  plugin_mgr->screen        = screen;
+  plugin_mgr->screen = screen;
 
   if (screen)
     g_object_set_data (G_OBJECT (screen), "meta-plugin-manager", plugin_mgr);
@@ -397,7 +177,20 @@ meta_plugin_manager_get (MetaScreen *screen)
     }
   else
     {
-      return meta_plugin_manager_new (screen);
+      GSList *iter;
+      GType plugin_type;
+      MetaPlugin *plugin;
+
+      plugin_mgr = meta_plugin_manager_new (screen);
+
+      for (iter = plugin_types; iter; iter = iter->next)
+        {
+          plugin_type = (GType)GPOINTER_TO_SIZE (iter->data);
+          plugin = g_object_new (plugin_type, "screen", screen,  NULL);
+          plugin_mgr->plugins = g_list_prepend (plugin_mgr->plugins, plugin);
+        }
+
+      return plugin_mgr;
     }
 }
 

src/compositor/meta-plugin-manager.h

@@ -24,11 +24,11 @@
 #ifndef META_PLUGIN_MANAGER_H_
 #define META_PLUGIN_MANAGER_H_
 
-#include "types.h"
-#include "screen.h"
+#include <meta/types.h>
+#include <meta/screen.h>
 
 #define  META_PLUGIN_FROM_MANAGER_
-#include "meta-plugin.h"
+#include <meta/meta-plugin.h>
 #undef   META_PLUGIN_FROM_MANAGER_
 
 #define META_PLUGIN_MINIMIZE         (1<<0)
@@ -49,8 +49,12 @@ typedef struct MetaPluginManager MetaPluginManager;
 MetaPluginManager * meta_plugin_manager_get         (MetaScreen *screen);
 MetaPluginManager * meta_plugin_manager_get_default (void);
 
-gboolean meta_plugin_manager_load         (MetaPluginManager *mgr);
-gboolean meta_plugin_manager_initialize   (MetaPluginManager *plugin_mgr);
+void     meta_plugin_manager_load         (MetaPluginManager *mgr,
+                                           const gchar       *plugin_name);
+void     meta_plugin_manager_register     (MetaPluginManager *mgr,
+                                           GType              plugin_type);
+void     meta_plugin_manager_initialize   (MetaPluginManager *mgr);
+
 gboolean meta_plugin_manager_event_simple (MetaPluginManager *mgr,
                                            MetaWindowActor   *actor,
                                            unsigned long      event);

src/compositor/meta-plugin.c

@@ -21,9 +21,10 @@
  * 02111-1307, USA.
  */
 
-#include "meta-plugin.h"
-#include "screen.h"
-#include "display.h"
+#include <meta/meta-plugin.h>
+#include "meta-plugin-manager.h"
+#include <meta/screen.h>
+#include <meta/display.h>
 
 #include <string.h>
 #include <X11/Xlib.h>
@@ -43,7 +44,6 @@ enum
 {
   PROP_0,
   PROP_SCREEN,
-  PROP_PARAMS,
   PROP_FEATURES,
   PROP_DISABLED,
   PROP_DEBUG_MODE,
@@ -52,7 +52,6 @@ enum
 struct _MetaPluginPrivate
 {
   MetaScreen   *screen;
-  gchar        *params;
   gulong        features;
 
   gint          running;
@@ -61,6 +60,46 @@ struct _MetaPluginPrivate
   gboolean      debug    : 1;
 };
 
+static void
+meta_plugin_set_features (MetaPlugin *plugin)
+{
+  MetaPluginPrivate  *priv     = plugin->priv;
+  MetaPluginClass    *klass    = META_PLUGIN_GET_CLASS (plugin);
+
+  priv->features = 0;
+
+  /*
+   * Feature flags: identify events that the plugin can handle; a plugin can
+   * handle one or more events.
+   */
+  if (klass->minimize)
+    priv->features |= META_PLUGIN_MINIMIZE;
+
+  if (klass->maximize)
+    priv->features |= META_PLUGIN_MAXIMIZE;
+
+  if (klass->unmaximize)
+    priv->features |= META_PLUGIN_UNMAXIMIZE;
+
+  if (klass->map)
+    priv->features |= META_PLUGIN_MAP;
+
+  if (klass->destroy)
+    priv->features |= META_PLUGIN_DESTROY;
+
+  if (klass->switch_workspace)
+    priv->features |= META_PLUGIN_SWITCH_WORKSPACE;
+}
+
+static void
+meta_plugin_constructed (GObject *object)
+{
+  meta_plugin_set_features (META_PLUGIN (object));
+
+  if (G_OBJECT_CLASS (meta_plugin_parent_class)->constructed)
+      G_OBJECT_CLASS (meta_plugin_parent_class)->constructed (object);
+}
+
 static void
 meta_plugin_dispose (GObject *object)
 {
@@ -70,97 +109,9 @@ meta_plugin_dispose (GObject *object)
 static void
 meta_plugin_finalize (GObject *object)
 {
-  MetaPluginPrivate *priv = META_PLUGIN (object)->priv;
-
-  g_free (priv->params);
-  priv->params = NULL;
-
   G_OBJECT_CLASS (meta_plugin_parent_class)->finalize (object);
 }
 
-static void
-meta_plugin_parse_params (MetaPlugin *plugin)
-{
-  char                  *p;
-  gulong                features = 0;
-  MetaPluginPrivate  *priv     = plugin->priv;
-  MetaPluginClass    *klass    = META_PLUGIN_GET_CLASS (plugin);
-
-/*
- * Feature flags: identify events that the plugin can handle; a plugin can
- * handle one or more events.
- */
-  if (klass->minimize)
-    features |= META_PLUGIN_MINIMIZE;
-
-  if (klass->maximize)
-    features |= META_PLUGIN_MAXIMIZE;
-
-  if (klass->unmaximize)
-    features |= META_PLUGIN_UNMAXIMIZE;
-
-  if (klass->map)
-    features |= META_PLUGIN_MAP;
-
-  if (klass->destroy)
-    features |= META_PLUGIN_DESTROY;
-
-  if (klass->switch_workspace)
-    features |= META_PLUGIN_SWITCH_WORKSPACE;
-
-  if (priv->params)
-    {
-      gboolean debug = FALSE;
-
-      if ((p = strstr (priv->params, "disable:")))
-        {
-          gchar *d = g_strdup (p+8);
-
-          p = strchr (d, ';');
-
-          if (p)
-            *p = 0;
-
-          if (strstr (d, "minimize"))
-            features &= ~ META_PLUGIN_MINIMIZE;
-
-          if (strstr (d, "maximize"))
-            features &= ~ META_PLUGIN_MAXIMIZE;
-
-          if (strstr (d, "unmaximize"))
-            features &= ~ META_PLUGIN_UNMAXIMIZE;
-
-          if (strstr (d, "map"))
-            features &= ~ META_PLUGIN_MAP;
-
-          if (strstr (d, "destroy"))
-            features &= ~ META_PLUGIN_DESTROY;
-
-          if (strstr (d, "switch-workspace"))
-            features &= ~META_PLUGIN_SWITCH_WORKSPACE;
-
-          g_free (d);
-        }
-
-      if (strstr (priv->params, "debug"))
-        debug = TRUE;
-
-      if (debug != priv->debug)
-        {
-          priv->debug = debug;
-
-          g_object_notify (G_OBJECT (plugin), "debug-mode");
-        }
-    }
-
-  if (features != priv->features)
-    {
-      priv->features = features;
-
-      g_object_notify (G_OBJECT (plugin), "features");
-    }
-}
-
 static void
 meta_plugin_set_property (GObject      *object,
                           guint         prop_id,
@@ -174,10 +125,6 @@ meta_plugin_set_property (GObject      *object,
     case PROP_SCREEN:
       priv->screen = g_value_get_object (value);
       break;
-    case PROP_PARAMS:
-      priv->params = g_value_dup_string (value);
-      meta_plugin_parse_params (META_PLUGIN (object));
-      break;
     case PROP_DISABLED:
       priv->disabled = g_value_get_boolean (value);
       break;
@@ -203,9 +150,6 @@ meta_plugin_get_property (GObject    *object,
     case PROP_SCREEN:
       g_value_set_object (value, priv->screen);
       break;
-    case PROP_PARAMS:
-      g_value_set_string (value, priv->params);
-      break;
     case PROP_DISABLED:
       g_value_set_boolean (value, priv->disabled);
       break;
@@ -227,6 +171,7 @@ meta_plugin_class_init (MetaPluginClass *klass)
 {
   GObjectClass      *gobject_class = G_OBJECT_CLASS (klass);
 
+  gobject_class->constructed     = meta_plugin_constructed;
   gobject_class->finalize        = meta_plugin_finalize;
   gobject_class->dispose         = meta_plugin_dispose;
   gobject_class->set_property    = meta_plugin_set_property;
@@ -240,15 +185,6 @@ meta_plugin_class_init (MetaPluginClass *klass)
                                                         META_TYPE_SCREEN,
                                                         G_PARAM_READWRITE));
 
-  g_object_class_install_property (gobject_class,
-				   PROP_PARAMS,
-				   g_param_spec_string ("params",
-							"Parameters",
-							"Plugin Parameters",
-							NULL,
-							G_PARAM_READWRITE |
-                                                        G_PARAM_CONSTRUCT));
-
   g_object_class_install_property (gobject_class,
 				   PROP_FEATURES,
 				   g_param_spec_ulong ("features",
@@ -351,6 +287,14 @@ meta_plugin_get_window_group (MetaPlugin *plugin)
   return meta_get_window_group_for_screen (priv->screen);
 }
 
+ClutterActor *
+meta_plugin_get_background_actor (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  return meta_get_background_actor_for_screen (priv->screen);
+}
+
 /**
  * _meta_plugin_effect_started:
  * @plugin: the plugin
@@ -605,3 +549,18 @@ meta_plugin_get_screen (MetaPlugin *plugin)
   return priv->screen;
 }
 
+/**
+ * meta_plugin_type_register:
+ * @plugin_type: a #MetaPlugin type
+ *
+ * Register @plugin_type as a compositor plugin type to be used.
+ * You must call this before calling meta_init().
+ */
+void
+meta_plugin_type_register (GType plugin_type)
+{
+  MetaPluginManager *plugin_manager;
+
+  plugin_manager = meta_plugin_manager_get_default ();
+  meta_plugin_manager_register (plugin_manager, plugin_type);
+}

src/compositor/meta-shadow-factory-private.h

@@ -28,7 +28,7 @@
 #include <cairo.h>
 #include <clutter/clutter.h>
 #include "meta-window-shape.h"
-#include "meta-shadow-factory.h"
+#include <meta/meta-shadow-factory.h>
 
 /**
  * MetaShadow:
@@ -47,7 +47,8 @@ void        meta_shadow_paint       (MetaShadow            *shadow,
                                      int                    window_width,
                                      int                    window_height,
                                      guint8                 opacity,
-                                     cairo_region_t        *clip);
+                                     cairo_region_t        *clip,
+                                     gboolean               clip_strictly);
 void        meta_shadow_get_bounds  (MetaShadow            *shadow,
                                      int                    window_x,
                                      int                    window_y,
@@ -55,6 +56,8 @@ void        meta_shadow_get_bounds  (MetaShadow            *shadow,
                                      int                    window_height,
                                      cairo_rectangle_int_t *bounds);
 
+MetaShadowFactory *meta_shadow_factory_new (void);
+
 MetaShadow *meta_shadow_factory_get_shadow (MetaShadowFactory *factory,
                                             MetaWindowShape   *shape,
                                             int                width,

src/compositor/meta-shadow-factory.c

@@ -5,7 +5,6 @@
  * Create and cache shadow textures for abritrary window shapes
  *
  * Copyright 2010 Red Hat, Inc.
- * Copyright 2010 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -26,6 +25,7 @@
 #include <math.h>
 #include <string.h>
 
+#include "cogl-utils.h"
 #include "meta-shadow-factory-private.h"
 #include "region-utils.h"
 
@@ -189,8 +189,10 @@ meta_shadow_unref (MetaShadow *shadow)
  * @window_width: actual width of the region to paint a shadow for
  * @window_height: actual height of the region to paint a shadow for
  * @clip: (allow-none): if non-%NULL specifies the visible portion
- *   of the shadow. Drawing won't be strictly clipped to this region
- *   but it will be used to optimize what is drawn.
+ *   of the shadow.
+ * @clip_strictly: if %TRUE, drawing will be clipped strictly
+ *   to @clip, otherwise, it will be only used to optimize
+ *   drawing.
  *
  * Paints the shadow at the given position, for the specified actual
  * size of the region. (Since a #MetaShadow can be shared between
@@ -204,7 +206,8 @@ meta_shadow_paint (MetaShadow     *shadow,
                    int             window_width,
                    int             window_height,
                    guint8          opacity,
-                   cairo_region_t *clip)
+                   cairo_region_t *clip,
+                   gboolean        clip_strictly)
 {
   float texture_width = cogl_texture_get_width (shadow->texture);
   float texture_height = cogl_texture_get_height (shadow->texture);
@@ -276,6 +279,9 @@ meta_shadow_paint (MetaShadow     *shadow,
       dest_rect.y = dest_y[j];
       dest_rect.height = dest_y[j + 1] - dest_y[j];
 
+      if (dest_rect.height == 0)
+        continue;
+
       for (i = 0; i < n_x; i++)
         {
           cairo_region_overlap_t overlap;
@@ -283,16 +289,64 @@ meta_shadow_paint (MetaShadow     *shadow,
           dest_rect.x = dest_x[i];
           dest_rect.width = dest_x[i + 1] - dest_x[i];
 
+          if (dest_rect.width == 0)
+            continue;
+
           if (clip)
             overlap = cairo_region_contains_rectangle (clip, &dest_rect);
           else
-            overlap = CAIRO_REGION_OVERLAP_PART;
+            overlap = CAIRO_REGION_OVERLAP_IN;
 
-          if (overlap != CAIRO_REGION_OVERLAP_OUT)
-            cogl_rectangle_with_texture_coords (dest_x[i], dest_y[j],
-                                                dest_x[i + 1], dest_y[j + 1],
-                                                src_x[i], src_y[j],
-                                                src_x[i + 1], src_y[j + 1]);
+          /* There's quite a bit of overhead from allocating a new
+           * region in order to find an exact intersection and
+           * generating more geometry - we make the assumption that
+           * unless we have to clip strictly it will be cheaper to
+           * just draw the entire rectangle.
+           */
+          if (overlap == CAIRO_REGION_OVERLAP_IN ||
+              (overlap == CAIRO_REGION_OVERLAP_PART && !clip_strictly))
+            {
+              cogl_rectangle_with_texture_coords (dest_x[i], dest_y[j],
+                                                  dest_x[i + 1], dest_y[j + 1],
+                                                  src_x[i], src_y[j],
+                                                  src_x[i + 1], src_y[j + 1]);
+            }
+          else if (overlap == CAIRO_REGION_OVERLAP_PART)
+            {
+              cairo_region_t *intersection;
+              int n_rectangles, k;
+
+              intersection = cairo_region_create_rectangle (&dest_rect);
+              cairo_region_intersect (intersection, clip);
+
+              n_rectangles = cairo_region_num_rectangles (intersection);
+              for (k = 0; k < n_rectangles; k++)
+                {
+                  cairo_rectangle_int_t rect;
+                  float src_x1, src_x2, src_y1, src_y2;
+
+                  cairo_region_get_rectangle (intersection, k, &rect);
+
+                  /* Separately linear interpolate X and Y coordinates in the source
+                   * based on the destination X and Y coordinates */
+
+                  src_x1 = (src_x[i] * (dest_rect.x + dest_rect.width - rect.x) +
+                            src_x[i + 1] * (rect.x - dest_rect.x)) / dest_rect.width;
+                  src_x2 = (src_x[i] * (dest_rect.x + dest_rect.width - (rect.x + rect.width)) +
+                            src_x[i + 1] * (rect.x + rect.width - dest_rect.x)) / dest_rect.width;
+
+                  src_y1 = (src_y[j] * (dest_rect.y + dest_rect.height - rect.y) +
+                            src_y[j + 1] * (rect.y - dest_rect.y)) / dest_rect.height;
+                  src_y2 = (src_y[j] * (dest_rect.y + dest_rect.height - (rect.y + rect.height)) +
+                            src_y[j + 1] * (rect.y + rect.height - dest_rect.y)) / dest_rect.height;
+
+                  cogl_rectangle_with_texture_coords (rect.x, rect.y,
+                                                      rect.x + rect.width, rect.y + rect.height,
+                                                      src_x1, src_y1, src_x2, src_y2);
+                }
+
+              cairo_region_destroy (intersection);
+            }
         }
     }
 }
@@ -641,49 +695,6 @@ flip_buffer (guchar *buffer,
 #undef BLOCK_SIZE
 }
 
-/* Creates a material with a single layer. Using a common template
- * allows sharing a shader between all shadows. To share the same
- * shader with all other materials that are just texture plus
- * opacity would require cogl fixes. Based on
- * gnome-shell/src/st/_st_create_texture_material.c
- */
-static CoglHandle
-create_texture_material (CoglHandle src_texture)
-{
-  static CoglHandle texture_material_template = COGL_INVALID_HANDLE;
-  CoglHandle material;
-
-  g_return_val_if_fail (src_texture != COGL_INVALID_HANDLE,
-                        COGL_INVALID_HANDLE);
-
-  /* We use a material that has a dummy texture as a base for all
-     texture materials. The idea is that only the Cogl texture object
-     would be different in the children so it is likely that Cogl will
-     be able to share GL programs between all the textures. */
-  if (G_UNLIKELY (texture_material_template == COGL_INVALID_HANDLE))
-    {
-      static const guint8 white_pixel[] = { 0xff, 0xff, 0xff, 0xff };
-      CoglHandle dummy_texture;
-
-      dummy_texture =
-        cogl_texture_new_from_data (1, 1,
-                                    COGL_TEXTURE_NONE,
-                                    COGL_PIXEL_FORMAT_RGBA_8888_PRE,
-                                    COGL_PIXEL_FORMAT_ANY,
-                                    4, white_pixel);
-
-      texture_material_template = cogl_material_new ();
-      cogl_material_set_layer (texture_material_template, 0, dummy_texture);
-      cogl_handle_unref (dummy_texture);
-    }
-
-  material = cogl_material_copy (texture_material_template);
-
-  cogl_material_set_layer (material, 0, src_texture);
-
-  return material;
-}
-
 static void
 make_shadow (MetaShadow     *shadow,
              cairo_region_t *region)
@@ -775,7 +786,7 @@ make_shadow (MetaShadow     *shadow,
 
   /* We offset the passed in pixels to crop off the extra area we allocated at the top
    * in the case of top_fade >= 0. We also account for padding at the left for symmetry
-   * though that doesn't currnetly occur.
+   * though that doesn't currently occur.
    */
   shadow->texture = cogl_texture_new_from_data (shadow->outer_border_left + extents.width + shadow->outer_border_right,
                                                 shadow->outer_border_top + extents.height + shadow->outer_border_bottom,
@@ -791,7 +802,7 @@ make_shadow (MetaShadow     *shadow,
   cairo_region_destroy (column_convolve_region);
   g_free (buffer);
 
-  shadow->material = create_texture_material (shadow->texture);
+  shadow->material = meta_create_texture_material (shadow->texture);
 }
 
 static MetaShadowParams *

src/compositor/meta-shaped-texture.c

@@ -187,8 +187,10 @@ meta_shaped_texture_dirty_mask (MetaShapedTexture *stex)
       cogl_texture_get_gl_texture (priv->mask_texture,
                                    &mask_gl_tex, &mask_gl_target);
 
+#ifdef GL_TEXTURE_RECTANGLE_ARB
       if (mask_gl_target == GL_TEXTURE_RECTANGLE_ARB)
         glDeleteTextures (1, &mask_gl_tex);
+#endif
 
       cogl_handle_unref (priv->mask_texture);
       priv->mask_texture = COGL_INVALID_HANDLE;
@@ -253,6 +255,7 @@ meta_shaped_texture_ensure_mask (MetaShapedTexture *stex)
 
       cogl_texture_get_gl_texture (paint_tex, NULL, &paint_gl_target);
 
+#ifdef GL_TEXTURE_RECTANGLE_ARB
       if (paint_gl_target == GL_TEXTURE_RECTANGLE_ARB)
         {
           GLuint tex;
@@ -275,6 +278,7 @@ meta_shaped_texture_ensure_mask (MetaShapedTexture *stex)
                                              COGL_PIXEL_FORMAT_A_8);
         }
       else
+#endif /* GL_TEXTURE_RECTANGLE_ARB */
         priv->mask_texture = cogl_texture_new_from_data (tex_width, tex_height,
                                                          COGL_TEXTURE_NONE,
                                                          COGL_PIXEL_FORMAT_A_8,

src/compositor/meta-shaped-texture.h

@@ -31,6 +31,8 @@
 #include <clutter/clutter.h>
 #ifdef HAVE_GLX_TEXTURE_PIXMAP
 #include <clutter/glx/clutter-glx.h>
+#else
+#include <clutter/x11/clutter-x11.h>
 #endif /* HAVE_GLX_TEXTURE_PIXMAP */
 
 G_BEGIN_DECLS

src/compositor/meta-texture-tower.c

@@ -97,6 +97,7 @@ meta_texture_tower_free (MetaTextureTower *tower)
   g_slice_free (MetaTextureTower, tower);
 }
 
+#ifdef GL_TEXTURE_RECTANGLE_ARB
 static gboolean
 texture_is_rectangle (CoglHandle texture)
 {
@@ -106,10 +107,12 @@ texture_is_rectangle (CoglHandle texture)
   cogl_texture_get_gl_texture (texture, &gl_tex, &gl_target);
   return gl_target == GL_TEXTURE_RECTANGLE_ARB;
 }
+#endif /* GL_TEXTURE_RECTANGLE_ARB */
 
 static void
 free_texture (CoglHandle texture)
 {
+#ifdef GL_TEXTURE_RECTANGLE_ARB
   GLuint gl_tex;
   GLenum gl_target;
 
@@ -117,6 +120,7 @@ free_texture (CoglHandle texture)
 
   if (gl_target == GL_TEXTURE_RECTANGLE_ARB)
     glDeleteTextures (1, &gl_tex);
+#endif /* GL_TEXTURE_RECTANGLE_ARB */
 
   cogl_handle_unref (texture);
 }
@@ -362,11 +366,13 @@ get_paint_level (int width, int height)
     return (int)(0.5 + lambda);
 }
 
+#ifdef GL_TEXTURE_RECTANGLE_ARB
 static gboolean
 is_power_of_two (int x)
 {
   return (x & (x - 1)) == 0;
 }
+#endif /* GL_TEXTURE_RECTANGLE_ARB */
 
 static void
 texture_tower_create_texture (MetaTextureTower *tower,
@@ -374,6 +380,7 @@ texture_tower_create_texture (MetaTextureTower *tower,
                               int               width,
                               int               height)
 {
+#ifdef GL_TEXTURE_RECTANGLE_ARB
   if ((!is_power_of_two (width) || !is_power_of_two (height)) &&
       texture_is_rectangle (tower->textures[level - 1]))
     {
@@ -396,6 +403,7 @@ texture_tower_create_texture (MetaTextureTower *tower,
                                                               TEXTURE_FORMAT);
     }
   else
+#endif /* GL_TEXTURE_RECTANGLE_ARB */
     {
       tower->textures[level] = cogl_texture_new_with_size (width, height,
                                                            COGL_TEXTURE_NO_AUTO_MIPMAP,

src/compositor/meta-window-actor-private.h

@@ -6,7 +6,7 @@
 #include <config.h>
 
 #include <X11/extensions/Xdamage.h>
-#include "compositor-mutter.h"
+#include <meta/compositor-mutter.h>
 
 MetaWindowActor *meta_window_actor_new (MetaWindow *window);
 

src/compositor/meta-window-actor.c

@@ -1,5 +1,7 @@
 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
 
+#include <config.h>
+
 #define _ISOC99_SOURCE /* for roundf */
 #include <math.h>
 
@@ -11,10 +13,10 @@
 #include <clutter/x11/clutter-x11.h>
 #include <gdk/gdk.h> /* for gdk_rectangle_union() */
 
-#include "display.h"
-#include "errors.h"
+#include <meta/display.h>
+#include <meta/errors.h>
 #include "frame.h"
-#include "window.h"
+#include <meta/window.h>
 #include "xprops.h"
 
 #include "compositor-private.h"
@@ -22,6 +24,15 @@
 #include "meta-shaped-texture.h"
 #include "meta-window-actor-private.h"
 
+enum {
+  POSITION_CHANGED,
+  SIZE_CHANGED,
+  LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = {0};
+
+
 struct _MetaWindowActorPrivate
 {
   XWindowAttributes attrs;
@@ -39,7 +50,7 @@ struct _MetaWindowActorPrivate
    * these will be the same. 2) when the shadow potentially changes we
    * don't immediately unreference the old shadow, we just flag it as
    * dirty and recompute it when we next need it (recompute_focused_shadow,
-   * recompute_unfocused_shadow.)  Because of the our extraction of
+   * recompute_unfocused_shadow.) Because of our extraction of
    * size-invariant window shape, we'll often find that the new shadow
    * is the same as the old shadow.
    */
@@ -273,6 +284,21 @@ meta_window_actor_class_init (MetaWindowActorClass *klass)
   g_object_class_install_property (object_class,
                                    PROP_SHADOW_CLASS,
                                    pspec);
+
+  signals[POSITION_CHANGED] =
+    g_signal_new ("position-changed",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST,
+                  0, NULL, NULL,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+  signals[SIZE_CHANGED] =
+    g_signal_new ("size-changed",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST,
+                  0, NULL, NULL,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
 }
 
 static void
@@ -299,7 +325,6 @@ window_decorated_notify (MetaWindow *mw,
   MetaDisplay            *display  = meta_screen_get_display (screen);
   Display                *xdisplay = meta_display_get_xdisplay (display);
   Window                  new_xwindow;
-  MetaCompScreen         *info;
   XWindowAttributes       attrs;
 
   /*
@@ -315,8 +340,6 @@ window_decorated_notify (MetaWindow *mw,
 
   meta_window_actor_detach (self);
 
-  info = meta_screen_get_compositor_data (screen);
-
   /*
    * First of all, clean up any resources we are currently using and will
    * be replacing.
@@ -350,6 +373,14 @@ window_decorated_notify (MetaWindow *mw,
   meta_window_actor_constructed (G_OBJECT (self));
 }
 
+static void
+window_appears_focused_notify (MetaWindow *mw,
+                               GParamSpec *arg1,
+                               gpointer    data)
+{
+  clutter_actor_queue_redraw (CLUTTER_ACTOR (data));
+}
+
 static void
 meta_window_actor_constructed (GObject *object)
 {
@@ -360,9 +391,6 @@ meta_window_actor_constructed (GObject *object)
   Window                  xwindow  = priv->xwindow;
   Display                *xdisplay = meta_display_get_xdisplay (display);
   XRenderPictFormat      *format;
-  MetaCompositor         *compositor;
-
-  compositor = meta_display_get_compositor (display);
 
 #ifdef HAVE_SHAPE
   /* Listen for ShapeNotify events on the window */
@@ -383,8 +411,6 @@ meta_window_actor_constructed (GObject *object)
   if (format && format->type == PictTypeDirect && format->direct.alphaMask)
     priv->argb32 = TRUE;
 
-  meta_window_actor_update_opacity (self);
-
   if (!priv->actor)
     {
       priv->actor = meta_shaped_texture_new ();
@@ -402,6 +428,8 @@ meta_window_actor_constructed (GObject *object)
 
       g_signal_connect (priv->window, "notify::decorated",
                         G_CALLBACK (window_decorated_notify), self);
+      g_signal_connect (priv->window, "notify::appears-focused",
+                        G_CALLBACK (window_appears_focused_notify), self);
     }
   else
     {
@@ -412,7 +440,7 @@ meta_window_actor_constructed (GObject *object)
       clutter_actor_raise_top (priv->actor);
     }
 
-
+  meta_window_actor_update_opacity (self);
   meta_window_actor_update_shape (self, priv->shaped);
 }
 
@@ -477,6 +505,12 @@ meta_window_actor_dispose (GObject *object)
 
   info->windows = g_list_remove (info->windows, (gconstpointer) self);
 
+  if (priv->window)
+    {
+      g_object_unref (priv->window);
+      priv->window = NULL;
+    }
+
   /*
    * Release the extra reference we took on the actor.
    */
@@ -509,7 +543,11 @@ meta_window_actor_set_property (GObject      *object,
   switch (prop_id)
     {
     case PROP_META_WINDOW:
-      priv->window = g_value_get_object (value);
+      {
+        if (priv->window)
+          g_object_unref (priv->window);
+        priv->window = g_value_dup_object (value);
+      }
       break;
     case PROP_META_SCREEN:
       priv->screen = g_value_get_pointer (value);
@@ -641,6 +679,7 @@ meta_window_actor_get_shape_bounds (MetaWindowActor       *self,
     bounds->x = bounds->y = bounds->width = bounds->height = 0;
 }
 
+#if CLUTTER_CHECK_VERSION(1, 5, 2)
 static void
 meta_window_actor_get_shadow_bounds (MetaWindowActor       *self,
                                      gboolean               appears_focused,
@@ -661,6 +700,27 @@ meta_window_actor_get_shadow_bounds (MetaWindowActor       *self,
                           shape_bounds.height,
                           bounds);
 }
+#endif
+
+/* If we have an ARGB32 window that we decorate with a frame, it's
+ * probably something like a translucent terminal - something where
+ * the alpha channel represents transparency rather than a shape.  We
+ * don't want to show the shadow through the translucent areas since
+ * the shadow is wrong for translucent windows (it should be
+ * translucent itself and colored), and not only that, will /look/
+ * horribly wrong - a misplaced big black blob. As a hack, what we
+ * want to do is just draw the shadow as normal outside the frame, and
+ * inside the frame draw no shadow.  This is also not even close to
+ * the right result, but looks OK. We also apply this approach to
+ * windows set to be partially translucent with _NET_WM_WINDOW_OPACITY.
+ */
+static gboolean
+clip_shadow_under_window (MetaWindowActor *self)
+{
+  MetaWindowActorPrivate *priv = self->priv;
+
+  return (priv->argb32 || priv->opacity != 0xff) && priv->window->frame;
+}
 
 static void
 meta_window_actor_paint (ClutterActor *actor)
@@ -674,17 +734,36 @@ meta_window_actor_paint (ClutterActor *actor)
     {
       MetaShadowParams params;
       cairo_rectangle_int_t shape_bounds;
+      cairo_region_t *clip = priv->shadow_clip;
 
       meta_window_actor_get_shape_bounds (self, &shape_bounds);
       meta_window_actor_get_shadow_params (self, appears_focused, &params);
 
+      /* The frame bounds are already subtracted from priv->shadow_clip
+       * if that exists.
+       */
+      if (!clip && clip_shadow_under_window (self))
+        {
+          cairo_region_t *frame_bounds = meta_window_get_frame_bounds (priv->window);
+          cairo_rectangle_int_t bounds;
+
+          meta_window_actor_get_shadow_bounds (self, appears_focused, &bounds);
+          clip = cairo_region_create_rectangle (&bounds);
+
+          cairo_region_subtract (clip, frame_bounds);
+        }
+
       meta_shadow_paint (shadow,
                          params.x_offset + shape_bounds.x,
                          params.y_offset + shape_bounds.y,
                          shape_bounds.width,
                          shape_bounds.height,
-                         (clutter_actor_get_paint_opacity (actor) * params.opacity) / 255,
-                         priv->shadow_clip);
+                         (clutter_actor_get_paint_opacity (actor) * params.opacity * priv->opacity) / (255 * 255),
+                         clip,
+                         clip_shadow_under_window (self)); /* clip_strictly - not just as an optimization */
+
+      if (clip && clip != priv->shadow_clip)
+        cairo_region_destroy (clip);
     }
 
   CLUTTER_ACTOR_CLASS (meta_window_actor_parent_class)->paint (actor);
@@ -879,6 +958,19 @@ meta_window_actor_get_texture (MetaWindowActor *self)
   return self->priv->actor;
 }
 
+/**
+ * meta_window_actor_is_destroyed:
+ *
+ * Gets whether the X window that the actor was displaying has been destroyed
+ *
+ * Return value: %TRUE when the window is destroyed, otherwise %FALSE
+ */
+gboolean
+meta_window_actor_is_destroyed (MetaWindowActor *self)
+{
+  return self->priv->disposed;
+}
+
 gboolean
 meta_window_actor_is_override_redirect (MetaWindowActor *self)
 {
@@ -1305,6 +1397,8 @@ meta_window_actor_sync_actor_position (MetaWindowActor *self)
                               window_rect.x, window_rect.y);
   clutter_actor_set_size (CLUTTER_ACTOR (self),
                           window_rect.width, window_rect.height);
+
+  g_signal_emit (self, signals[POSITION_CHANGED], 0);
 }
 
 void
@@ -1589,13 +1683,24 @@ meta_window_actor_update_bounding_region (MetaWindowActor *self,
 
   priv->bounding_region = cairo_region_create_rectangle (&bounding_rectangle);
 
-  /* When we're shaped, we use the shape region to generate the shadow; the shape
-   * region only changes when we get ShapeNotify event; but for unshaped windows
-   * we generate the shadow from the bounding region, so we need to recompute
-   * the shadow when the size changes.
-   */
-  if (!priv->shaped)
-    meta_window_actor_invalidate_shadow (self);
+  if (priv->shaped)
+    {
+      /* If we're shaped, the implicit shape region clipping we need to do needs
+       * to be updated.
+       */
+      meta_window_actor_update_shape (self, TRUE);
+    }
+  else
+    {
+      /* When we're shaped, we use the shape region to generate the shadow; the shape
+       * region only changes when we get ShapeNotify event; but for unshaped windows
+       * we generate the shadow from the bounding region, so we need to recompute
+       * the shadow when the size changes.
+       */
+      meta_window_actor_invalidate_shadow (self);
+    }
+
+  g_signal_emit (self, signals[SIZE_CHANGED], 0);
 }
 
 static void
@@ -1614,6 +1719,20 @@ meta_window_actor_update_shape_region (MetaWindowActor *self,
       cairo_rectangle_int_t rect = { rects[i].x, rects[i].y, rects[i].width, rects[i].height };
       cairo_region_union_rectangle (priv->shape_region, &rect);
     }
+
+  /* Our "shape_region" is called the "bounding region" in the X Shape
+   * Extension Documentation.
+   *
+   * Our "bounding_region" is called the "bounding rectangle", which defines
+   * the shape of the window as if it the window was unshaped.
+   *
+   * The X Shape extension requires that the "bounding region" can never
+   * extend outside the "bounding rectangle", and says it must be implicitly
+   * clipped before rendering. The region we get back hasn't been clipped.
+   * We explicitly clip the region here.
+   */
+  if (priv->bounding_region != NULL)
+    cairo_region_intersect (priv->shape_region, priv->bounding_region);
 }
 
 /**
@@ -1631,7 +1750,7 @@ meta_window_actor_get_obscured_region (MetaWindowActor *self)
 {
   MetaWindowActorPrivate *priv = self->priv;
 
-  if (!priv->argb32 && priv->back_pixmap)
+  if (!priv->argb32 && priv->opacity == 0xff && priv->back_pixmap)
     {
       if (priv->shaped)
         return priv->shape_region;
@@ -1730,6 +1849,12 @@ meta_window_actor_set_visible_region_beneath (MetaWindowActor *self,
     {
       meta_window_actor_clear_shadow_clip (self);
       priv->shadow_clip = cairo_region_copy (beneath_region);
+
+      if (clip_shadow_under_window (self))
+        {
+          cairo_region_t *frame_bounds = meta_window_get_frame_bounds (priv->window);
+          cairo_region_subtract (priv->shadow_clip, frame_bounds);
+        }
     }
 }
 
@@ -1760,7 +1885,6 @@ check_needs_pixmap (MetaWindowActor *self)
   MetaCompScreen      *info     = meta_screen_get_compositor_data (screen);
   MetaCompositor      *compositor;
   Window               xwindow  = priv->xwindow;
-  gboolean             full     = FALSE;
 
   if (!priv->needs_pixmap)
     return;
@@ -1821,9 +1945,11 @@ check_needs_pixmap (MetaWindowActor *self)
        * do it here.
        * See: http://bugzilla.clutter-project.org/show_bug.cgi?id=2236
        */
-      if (!clutter_glx_texture_pixmap_using_extension (
-                                  CLUTTER_GLX_TEXTURE_PIXMAP (priv->actor)))
+#ifdef HAVE_GLX_TEXTURE_PIXMAP
+      if (G_UNLIKELY (!clutter_glx_texture_pixmap_using_extension (
+                                  CLUTTER_GLX_TEXTURE_PIXMAP (priv->actor))))
         g_warning ("NOTE: Not using GLX TFP!\n");
+#endif
 
       g_object_get (priv->actor,
                     "pixmap-width", &pxm_width,
@@ -1831,8 +1957,6 @@ check_needs_pixmap (MetaWindowActor *self)
                     NULL);
 
       meta_window_actor_update_bounding_region (self, pxm_width, pxm_height);
-
-      full = TRUE;
     }
 
   meta_error_trap_pop (display);
@@ -1887,24 +2011,26 @@ check_needs_shadow (MetaWindowActor *self)
 
   if (*shadow_location == NULL && should_have_shadow)
     {
-      MetaShadowFactory *factory = meta_shadow_factory_get_default ();
-      const char *shadow_class = meta_window_actor_get_shadow_class (self);
-      cairo_rectangle_int_t shape_bounds;
-
       if (priv->shadow_shape == NULL)
         {
-          if (priv->shaped)
+          if (priv->shaped && priv->shape_region)
             priv->shadow_shape = meta_window_shape_new (priv->shape_region);
-          else
+          else if (priv->bounding_region)
             priv->shadow_shape = meta_window_shape_new (priv->bounding_region);
         }
 
-      meta_window_actor_get_shape_bounds (self, &shape_bounds);
+      if (priv->shadow_shape != NULL)
+        {
+          MetaShadowFactory *factory = meta_shadow_factory_get_default ();
+          const char *shadow_class = meta_window_actor_get_shadow_class (self);
+          cairo_rectangle_int_t shape_bounds;
 
-      *shadow_location = meta_shadow_factory_get_shadow (factory,
-                                                         priv->shadow_shape,
-                                                         shape_bounds.width, shape_bounds.height,
-                                                         shadow_class, appears_focused);
+          meta_window_actor_get_shape_bounds (self, &shape_bounds);
+          *shadow_location = meta_shadow_factory_get_shadow (factory,
+                                                             priv->shadow_shape,
+                                                             shape_bounds.width, shape_bounds.height,
+                                                             shadow_class, appears_focused);
+        }
     }
 
   if (old_shadow != NULL)
@@ -2087,5 +2213,5 @@ meta_window_actor_update_opacity (MetaWindowActor *self)
     opacity = 255;
 
   self->priv->opacity = opacity;
-  clutter_actor_set_opacity (CLUTTER_ACTOR (self), opacity);
+  clutter_actor_set_opacity (self->priv->actor, opacity);
 }

src/compositor/meta-window-group.c

@@ -5,8 +5,11 @@
 #define _ISOC99_SOURCE /* for roundf */
 #include <math.h>
 
+#include <gdk/gdk.h> /* for gdk_rectangle_intersect() */
+
 #include "meta-window-actor-private.h"
 #include "meta-window-group.h"
+#include "meta-background-actor.h"
 
 struct _MetaWindowGroupClass
 {
@@ -102,7 +105,9 @@ meta_window_group_paint (ClutterActor *actor)
 {
   MetaWindowGroup *window_group = META_WINDOW_GROUP (actor);
   cairo_region_t *visible_region;
+  GLboolean scissor_test;
   cairo_rectangle_int_t screen_rect = { 0 };
+  cairo_rectangle_int_t scissor_rect;
   GList *children, *l;
 
   /* We walk the list from top to bottom (opposite of painting order),
@@ -118,35 +123,67 @@ meta_window_group_paint (ClutterActor *actor)
    * optimization, however.)
    */
   meta_screen_get_size (window_group->screen, &screen_rect.width, &screen_rect.height);
-  visible_region = cairo_region_create_rectangle (&screen_rect);
+
+  /* When doing a partial stage paint, Clutter will set the GL scissor
+   * box to the clip rectangle for the partial repaint. We combine the screen
+   * rectangle with the scissor box to get the region we need to
+   * paint. (Strangely, the scissor box sometimes seems to be bigger
+   * than the stage ... Clutter should probably be clampimg)
+   */
+  glGetBooleanv (GL_SCISSOR_TEST, &scissor_test);
+
+  if (scissor_test)
+    {
+      GLint scissor_box[4];
+      glGetIntegerv (GL_SCISSOR_BOX, scissor_box);
+
+      scissor_rect.x = scissor_box[0];
+      scissor_rect.y = screen_rect.height - (scissor_box[1] + scissor_box[3]);
+      scissor_rect.width = scissor_box[2];
+      scissor_rect.height = scissor_box[3];
+
+      gdk_rectangle_intersect (&scissor_rect, &screen_rect, &scissor_rect);
+    }
+  else
+    {
+      scissor_rect = screen_rect;
+    }
+
+  visible_region = cairo_region_create_rectangle (&scissor_rect);
 
   for (l = children; l; l = l->next)
     {
-      MetaWindowActor *window_actor;
-      gboolean x, y;
-
-      if (!META_IS_WINDOW_ACTOR (l->data) || !CLUTTER_ACTOR_IS_VISIBLE (l->data))
+      if (!CLUTTER_ACTOR_IS_VISIBLE (l->data))
         continue;
 
-      window_actor = l->data;
-
-      if (!actor_is_untransformed (CLUTTER_ACTOR (window_actor), &x, &y))
-        continue;
-
-      /* Temporarily move to the coordinate system of the actor */
-      cairo_region_translate (visible_region, - x, - y);
-
-      meta_window_actor_set_visible_region (window_actor, visible_region);
-
-      if (clutter_actor_get_paint_opacity (CLUTTER_ACTOR (window_actor)) == 0xff)
+      if (META_IS_WINDOW_ACTOR (l->data))
         {
-          cairo_region_t *obscured_region = meta_window_actor_get_obscured_region (window_actor);
-          if (obscured_region)
-            cairo_region_subtract (visible_region, obscured_region);
-        }
+          MetaWindowActor *window_actor = l->data;
+          gboolean x, y;
 
-      meta_window_actor_set_visible_region_beneath (window_actor, visible_region);
-      cairo_region_translate (visible_region, x, y);
+          if (!actor_is_untransformed (CLUTTER_ACTOR (window_actor), &x, &y))
+            continue;
+
+          /* Temporarily move to the coordinate system of the actor */
+          cairo_region_translate (visible_region, - x, - y);
+
+          meta_window_actor_set_visible_region (window_actor, visible_region);
+
+          if (clutter_actor_get_paint_opacity (CLUTTER_ACTOR (window_actor)) == 0xff)
+            {
+              cairo_region_t *obscured_region = meta_window_actor_get_obscured_region (window_actor);
+              if (obscured_region)
+                cairo_region_subtract (visible_region, obscured_region);
+            }
+
+          meta_window_actor_set_visible_region_beneath (window_actor, visible_region);
+          cairo_region_translate (visible_region, x, y);
+        }
+      else if (META_IS_BACKGROUND_ACTOR (l->data))
+        {
+          MetaBackgroundActor *background_actor = l->data;
+          meta_background_actor_set_visible_region (background_actor, visible_region);
+        }
     }
 
   cairo_region_destroy (visible_region);
@@ -158,13 +195,17 @@ meta_window_group_paint (ClutterActor *actor)
    */
   for (l = children; l; l = l->next)
     {
-      MetaWindowActor *window_actor;
-
-      if (!META_IS_WINDOW_ACTOR (l->data))
-        continue;
-
-      window_actor = l->data;
-      meta_window_actor_reset_visible_regions (window_actor);
+      if (META_IS_WINDOW_ACTOR (l->data))
+        {
+          MetaWindowActor *window_actor = l->data;
+          window_actor = l->data;
+          meta_window_actor_reset_visible_regions (window_actor);
+        }
+      else if (META_IS_BACKGROUND_ACTOR (l->data))
+        {
+          MetaBackgroundActor *background_actor = l->data;
+          meta_background_actor_set_visible_region (background_actor, NULL);
+        }
     }
 
   g_list_free (children);

src/compositor/meta-window-group.h

@@ -5,7 +5,7 @@
 
 #include <clutter/clutter.h>
 
-#include "screen.h"
+#include <meta/screen.h>
 
 /**
  * MetaWindowGroup:

src/compositor/meta-window-shape.c

@@ -141,8 +141,9 @@ meta_window_shape_new (cairo_region_t *region)
 
 #if 0
       g_print ("%d: +%d+%dx%dx%d => +%d+%dx%dx%d\n",
-               i, iter.rectangle.x, iter.rectangle.y, iter.rectangle.width, iter.rectangle.height,
-               shape->rectangles[i].x, shape->rectangles[i].y, shape->rectangles[i].width, shape->rectangles[i].height);
+               iter.i, iter.rectangle.x, iter.rectangle.y, iter.rectangle.width, iter.rectangle.height,
+               shape->rectangles[iter.i].x, shape->rectangles[iter.i].y,
+               hape->rectangles[iter.i].width, shape->rectangles[iter.i].height);
 #endif
 
       hash = hash * 31 + x1 * 17 + x2 * 27 + y1 * 37 + y2 * 43;

src/compositor/meta-window-shape.h

@@ -32,8 +32,8 @@
  * MetaWindowShape:
  * #MetaWindowShape represents a 9-sliced region with borders on all sides that
  * are unscaled, and a constant central region that is scaled. For example,
- * if you the regions representing two windows that around rounded rectangles,
- * with the same corner regions, but different sizes, they have the
+ * the regions representing two windows that are rounded rectangles,
+ * with the same corner radius but different sizes, have the
  * same MetaWindowShape.
  *
  * #MetaWindowShape is designed to be used as part of a hash table key, so has

src/compositor/plugins/Makefile.am

@@ -1,7 +1,7 @@
 
 pkglibdir=@MUTTER_PLUGIN_DIR@
 
-INCLUDES=@MUTTER_CFLAGS@ -I $(top_srcdir)/src/include -DMUTTER_LIBEXECDIR=\"$(libexecdir)\" -DHOST_ALIAS=\"@HOST_ALIAS@\" -DMUTTER_LOCALEDIR=\"$(prefix)/@DATADIRNAME@/locale\" -DMUTTER_PKGDATADIR=\"$(pkgdatadir)\" -DMUTTER_DATADIR=\"$(datadir)\" -DG_LOG_DOMAIN=\"mutter\" -DSN_API_NOT_YET_FROZEN=1 -DMUTTER_MAJOR_VERSION=$(MUTTER_MAJOR_VERSION) -DMUTTER_MINOR_VERSION=$(MUTTER_MINOR_VERSION) -DMUTTER_MICRO_VERSION=$(MUTTER_MICRO_VERSION) -DMUTTER_PLUGIN_API_VERSION=$(MUTTER_PLUGIN_API_VERSION) -DMUTTER_PLUGIN_DIR=\"@MUTTER_PLUGIN_DIR@\"
+INCLUDES=@MUTTER_CFLAGS@ -I $(top_srcdir)/src -DMUTTER_LIBEXECDIR=\"$(libexecdir)\" -DHOST_ALIAS=\"@HOST_ALIAS@\" -DMUTTER_LOCALEDIR=\"$(prefix)/@DATADIRNAME@/locale\" -DMUTTER_PKGDATADIR=\"$(pkgdatadir)\" -DMUTTER_DATADIR=\"$(datadir)\" -DG_LOG_DOMAIN=\"mutter\" -DSN_API_NOT_YET_FROZEN=1 -DMUTTER_MAJOR_VERSION=$(MUTTER_MAJOR_VERSION) -DMUTTER_MINOR_VERSION=$(MUTTER_MINOR_VERSION) -DMUTTER_MICRO_VERSION=$(MUTTER_MICRO_VERSION) -DMUTTER_PLUGIN_API_VERSION=$(MUTTER_PLUGIN_API_VERSION) -DMUTTER_PLUGIN_DIR=\"@MUTTER_PLUGIN_DIR@\"
 
 default_la_CFLAGS   = -fPIC
 default_la_SOURCES  = default.c

src/compositor/plugins/README

@@ -1,41 +0,0 @@
-
-Plugins implement effects associated with WM events, such as window map,
-minimizing, maximizing, unmaximizing, destruction and workspace switching. The
-plugin API is documented in src/include/compositor-clutter-plugin.h; in
-addition the simple plugin can be used as a reference implementation.
-
-The API is intended to be generic, exposing no implementation details of the WM
-to the plugins; this will facilitate reuse without modification with another WM
-(there are plans to use the same plugin API with Matchbox 2).
-
-Multiple plugins can implement the same effect and be loaded at the same time;
-however, stacking arbitrary effects in this way might not work as expected;
-this is particularly true of more complex effects, such as those for workspace
-switching.
-
-Plugins are installed in ${prefix}/lib/metacity/plugins/clutter; from there the
-WM will load plugins listed in the clutter_plugins key in the Metacity gconf
-general preferences group. Each entry in preferences has the format
-
-  'name: optional parameters'
-
-where 'name' is the name of the library without the .so suffix.
-
-As noted above, additional parameters can be passed to the plugin via the
-preference key. In such case, the plugin name is immediately followed by a
-colon, separating it from the parameters. Two common parameters should be
-handled by all plugins:
-
-  'debug'   indicates that the plugin is run in a debug mode (what exactly that
-            means is left to the plugin to determine).
-
-  'disable' parameter indicates which effects within the plugin should be
-            disabled; the format of the disable parameter is
-
-              'disable: effect1[, effect2];'
-
-            where effect1, etc., matches the effects listed in the
-            compositor-clutter-plugin.h file (currently one of 'map', 'destroy',
-            'maximize', 'unmaximize', 'switch-workspace'). Example 'disable:
-            minimize, maximize;'.
-

src/compositor/plugins/default.c

@@ -21,8 +21,8 @@
  * 02111-1307, USA.
  */
 
-#include "meta-plugin.h"
-#include "window.h"
+#include <meta/meta-plugin.h>
+#include <meta/window.h>
 
 #include <libintl.h>
 #define _(x) dgettext (GETTEXT_PACKAGE, x)
@@ -319,12 +319,10 @@ switch_workspace (MetaPlugin *plugin,
 {
   MetaDefaultPluginPrivate *priv = META_DEFAULT_PLUGIN (plugin)->priv;
   GList        *l;
-  gint          n_workspaces;
   ClutterActor *workspace0  = clutter_group_new ();
   ClutterActor *workspace1  = clutter_group_new ();
   ClutterActor *stage;
   int           screen_width, screen_height;
-  MetaScreen   *screen = meta_plugin_get_screen (plugin);
   ClutterAnimation *animation;
 
   stage = meta_plugin_get_stage (plugin);
@@ -350,8 +348,6 @@ switch_workspace (MetaPlugin *plugin,
       return;
     }
 
-  n_workspaces = meta_screen_get_n_workspaces (screen);
-
   l = g_list_last (meta_plugin_get_window_actors (plugin));
 
   while (l)

src/compositor/region-utils.c

@@ -47,7 +47,9 @@
 
 typedef struct
 {
-  /* To merge regions in a binary tree, we need to keep track of The way these are filled is in the pattern:
+  /* To merge regions in binary tree order, we need to keep track of
+   * the regions that we've already merged together at different
+   * levels of the tree. We fill in an array in the pattern:
    *
    * |a  |
    * |b  |a  |
@@ -178,7 +180,7 @@ meta_region_iterator_next (MetaRegionIterator *iter)
   iter->rectangle = iter->next_rectangle;
   iter->line_start = iter->line_end;
 
-  if (iter->i < iter->n_rectangles)
+  if (iter->i + 1 < iter->n_rectangles)
     {
       cairo_region_get_rectangle (iter->region, iter->i + 1, &iter->next_rectangle);
       iter->line_end = iter->next_rectangle.y != iter->rectangle.y;
@@ -201,12 +203,12 @@ add_expanded_rect (MetaRegionBuilder  *builder,
 {
   if (flip)
     meta_region_builder_add_rectangle (builder,
-                                         y - y_amount, x - x_amount,
-                                         height + 2 * y_amount, width + 2 * x_amount);
+                                       y - y_amount, x - x_amount,
+                                       height + 2 * y_amount, width + 2 * x_amount);
   else
     meta_region_builder_add_rectangle (builder,
-                                         x - x_amount, y - y_amount,
-                                         width + 2 * x_amount, height + 2 * y_amount);
+                                       x - x_amount, y - y_amount,
+                                       width + 2 * x_amount, height + 2 * y_amount);
 }
 
 static cairo_region_t *
@@ -246,7 +248,6 @@ expand_region_inverse (cairo_region_t *region,
   MetaRegionBuilder builder;
   MetaRegionIterator iter;
   cairo_rectangle_int_t extents;
-  cairo_region_t *chunk;
 
   int last_x;
 
@@ -266,16 +267,11 @@ expand_region_inverse (cairo_region_t *region,
                      extents.x, extents.y + extents.height, extents.width, 1,
                      x_amount, y_amount, flip);
 
-  chunk = NULL;
-
   last_x = extents.x;
   for (meta_region_iterator_init (&iter, region);
        !meta_region_iterator_at_end (&iter);
        meta_region_iterator_next (&iter))
     {
-      if (chunk == NULL)
-        chunk = cairo_region_create ();
-
       if (iter.rectangle.x > last_x)
         add_expanded_rect (&builder,
                            last_x, iter.rectangle.y,

src/core/above-tab-keycode.c

@@ -0,0 +1,243 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* Find the keycode for the key above the tab key */
+/*
+ * Copyright 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+/* The standard cycle-windows keybinding should be the key above the
+ * tab key. This will have a different keysym on different keyboards -
+ * it's the ` (grave) key on US keyboards but something else on many
+ * other national layouts. So we need to figure out the keycode for
+ * this key without reference to key symbol.
+ *
+ * The "correct" way to do this is to get the XKB geometry from the
+ * X server, find the Tab key, find the key above the Tab key in the
+ * same section and use the keycode for that key. This is what I
+ * implemented here, but unfortunately, fetching the geometry is rather
+ * slow (It could take 20ms or more.)
+ *
+ * If you looking for a way to optimize Mutter startup performance:
+ * On all Linux systems using evdev the key above TAB will have
+ * keycode 49. (KEY_GRAVE=41 + the 8 code point offset between
+ * evdev keysyms and X keysyms.) So a configure option
+ * --with-above-tab-keycode=49 could be added that bypassed this
+ * code. It wouldn't work right for displaying Mutter remotely
+ * to a non-Linux X server, but that is pretty rare.
+ */
+
+#include <config.h>
+
+#include <string.h>
+
+#include "display-private.h"
+
+#include <X11/keysym.h>
+
+#ifdef HAVE_XKB
+#include <X11/XKBlib.h>
+#include <X11/extensions/XKBgeom.h>
+
+static guint
+compute_above_tab_keycode (Display *xdisplay)
+{
+  XkbDescPtr keyboard;
+  XkbGeometryPtr geometry;
+  int i, j, k;
+  int tab_keycode;
+  char *tab_name;
+  XkbSectionPtr tab_section;
+  XkbBoundsRec tab_bounds;
+  XkbKeyPtr best_key = NULL;
+  guint best_keycode = (guint)-1;
+  int best_x_dist = G_MAXINT;
+  int best_y_dist = G_MAXINT;
+
+  /* We need only the Names and the Geometry, but asking for these results
+   * in the Keyboard information retrieval failing for unknown reasons.
+   * (Testing with xorg-1.9.1.) So we ask for a part that we don't need
+   * as well.
+   */
+  keyboard = XkbGetKeyboard (xdisplay,
+                             XkbGBN_ClientSymbolsMask | XkbGBN_KeyNamesMask | XkbGBN_GeometryMask,
+                             XkbUseCoreKbd);
+  if (!keyboard)
+    return best_keycode;
+
+  geometry = keyboard->geom;
+
+  /* There could potentially be multiple keys with the Tab keysym on the keyboard;
+   * but XKeysymToKeycode() returns us the one that the alt-Tab binding will
+   * use which is good enough
+   */
+  tab_keycode = XKeysymToKeycode (xdisplay, XK_Tab);
+  if (tab_keycode == 0 || tab_keycode < keyboard->min_key_code || tab_keycode > keyboard->max_key_code)
+    goto out;
+
+  /* The keyboard geometry is stored by key "name" rather than keycode.
+   * (Key names are 4-character strings like like TAB or AE01.) We use the
+   * 'names' part of the keyboard description to map keycode to key name.
+   *
+   * XKB has a "key aliases" feature where a single keyboard key can have
+   * multiple names (with separate sets of aliases in the 'names' part and
+   * in the 'geometry' part), but I don't really understand it or how it is used,
+   * so I'm ignoring it here.
+   */
+
+  tab_name = keyboard->names->keys[tab_keycode].name; /* Not NULL terminated! */
+
+  /* First, iterate through the keyboard geometry to find the tab key; the keyboard
+   * geometry has a three-level heirarchy of section > row > key
+   */
+  for (i = 0; i < geometry->num_sections; i++)
+    {
+      XkbSectionPtr section = &geometry->sections[i];
+      for (j = 0; j < section->num_rows; j++)
+        {
+          int x = 0;
+          int y = 0;
+
+          XkbRowPtr row = &section->rows[j];
+          for (k = 0; k < row->num_keys; k++)
+            {
+              XkbKeyPtr key = &row->keys[k];
+              XkbShapePtr shape = XkbKeyShape (geometry, key);
+
+              if (row->vertical)
+                y += key->gap;
+              else
+                x += key->gap;
+
+              if (strncmp (key->name.name, tab_name, XkbKeyNameLength) == 0)
+                {
+                  tab_section = section;
+                  tab_bounds = shape->bounds;
+                  tab_bounds.x1 += row->left + x;
+                  tab_bounds.x2 += row->left + x;
+                  tab_bounds.y1 += row->top + y;
+                  tab_bounds.y2 += row->top + y;
+
+                  goto found_tab;
+                }
+
+              if (row->vertical)
+                y += (shape->bounds.y2 - shape->bounds.y1);
+              else
+                x += (shape->bounds.x2 - shape->bounds.x1);
+            }
+        }
+    }
+
+  /* No tab key found */
+  goto out;
+
+ found_tab:
+
+  /* Now find the key that:
+   *  - Is in the same section as the Tab key
+   *  - Has a horizontal center in the Tab key's horizonal bounds
+   *  - Is above the Tab key at a distance closer than any other key
+   *  - In case of ties, has its horizontal center as close as possible
+   *    to the Tab key's horizontal center
+   */
+  for (j = 0; j < tab_section->num_rows; j++)
+    {
+      int x = 0;
+      int y = 0;
+
+      XkbRowPtr row = &tab_section->rows[j];
+      for (k = 0; k < row->num_keys; k++)
+        {
+          XkbKeyPtr key = &row->keys[k];
+          XkbShapePtr shape = XkbKeyShape(geometry, key);
+          XkbBoundsRec bounds = shape->bounds;
+          int x_center;
+          int x_dist, y_dist;
+
+          if (row->vertical)
+            y += key->gap;
+          else
+            x += key->gap;
+
+          bounds.x1 += row->left + x;
+          bounds.x2 += row->left + x;
+          bounds.y1 += row->top + y;
+          bounds.y2 += row->top + y;
+
+          y_dist = tab_bounds.y1 - bounds.y2;
+          if (y_dist < 0)
+            continue;
+
+          x_center = (bounds.x1 + bounds.x2) / 2;
+          if (x_center < tab_bounds.x1 || x_center > tab_bounds.x2)
+            continue;
+
+          x_dist = ABS (x_center - (tab_bounds.x1 + tab_bounds.x2) / 2);
+
+          if (y_dist < best_y_dist ||
+              (y_dist == best_y_dist && x_dist < best_x_dist))
+            {
+              best_key = key;
+              best_x_dist = x_dist;
+              best_y_dist = y_dist;
+             }
+
+          if (row->vertical)
+            y += (shape->bounds.y2 - shape->bounds.y1);
+          else
+            x += (shape->bounds.x2 - shape->bounds.x1);
+        }
+    }
+
+  if (best_key == NULL)
+    goto out;
+
+  /* Now we need to resolve the name of the best key back to a keycode */
+  for (i = keyboard->min_key_code; i < keyboard->max_key_code; i++)
+    {
+      if (strncmp (best_key->name.name, keyboard->names->keys[i].name, XkbKeyNameLength) == 0)
+        {
+          best_keycode = i;
+          break;
+        }
+    }
+
+ out:
+  XkbFreeKeyboard (keyboard, 0, True);
+
+  return best_keycode;
+}
+#else /* !HAVE_XKB */
+static guint
+compute_above_tab_keycode (Display *xdisplay)
+{
+  return XKeysymToKeycode (xdisplay, XK_grave);
+}
+#endif /* HAVE_XKB */
+
+guint
+meta_display_get_above_tab_keycode (MetaDisplay *display)
+{
+  if (display->above_tab_keycode == 0) /* not yet computed */
+    display->above_tab_keycode = compute_above_tab_keycode (display->xdisplay);
+
+  if (display->above_tab_keycode == (guint)-1) /* failed to compute */
+    return 0;
+  else
+    return display->above_tab_keycode;
+}

src/core/all-keybindings.h

@@ -146,7 +146,7 @@ keybind (switch_to_workspace_down, handle_switch_to_workspace,
  */
 
 keybind (switch_group,              handle_switch,        META_TAB_LIST_GROUP,
-         BINDING_REVERSES,       NULL,
+         BINDING_REVERSES,       "<Alt>Above_Tab",
         _("Move between windows of an application, using a popup window"))
 keybind (switch_group_backward,    handle_switch,        META_TAB_LIST_GROUP,
          REVERSES_AND_REVERSED,  NULL,
@@ -167,7 +167,7 @@ keybind (switch_panels_backward,   handle_switch,        META_TAB_LIST_DOCKS,
           "using a popup window"))
 
 keybind (cycle_group,               handle_cycle,         META_TAB_LIST_GROUP,
-        BINDING_REVERSES,        "<Alt>grave",
+        BINDING_REVERSES,        "<Alt>F6",
         _("Move between windows of an application immediately"))
 keybind (cycle_group_backward,     handle_cycle,         META_TAB_LIST_GROUP,
         REVERSES_AND_REVERSED,   NULL,

src/core/bell.c

@@ -51,7 +51,7 @@
 #include <config.h>
 #include "bell.h"
 #include "screen-private.h"
-#include "prefs.h"
+#include <meta/prefs.h>
 #ifdef HAVE_LIBCANBERRA
 #include <canberra-gtk.h>
 #endif
@@ -149,7 +149,7 @@ bell_flash_screen (MetaDisplay *display,
 #ifdef HAVE_XKB
 static void
 bell_flash_fullscreen (MetaDisplay *display, 
-			    XkbAnyEvent *xkb_ev)
+                       XkbAnyEvent *xkb_ev)
 {
   XkbBellNotifyEvent *xkb_bell_ev = (XkbBellNotifyEvent *) xkb_ev;
   MetaScreen *screen;
@@ -159,7 +159,12 @@ bell_flash_fullscreen (MetaDisplay *display,
     {
       screen = meta_display_screen_for_xwindow (display, xkb_bell_ev->window);
       if (screen)
-	bell_flash_screen (display, screen);
+        {
+          if (display->compositor)
+            meta_compositor_flash_screen (display->compositor, screen);
+          else
+            bell_flash_screen (display, screen);
+        }
     }
   else 
     {
@@ -167,7 +172,10 @@ bell_flash_fullscreen (MetaDisplay *display,
       while (screen_list) 
 	{
 	  screen = (MetaScreen *) screen_list->data;
-	  bell_flash_screen (display, screen);
+          if (display->compositor)
+            meta_compositor_flash_screen (display->compositor, screen);
+          else
+            bell_flash_screen (display, screen);
 	  screen_list = screen_list->next;
 	}
     }

src/core/bell.h

@@ -36,7 +36,7 @@
 #include <X11/XKBlib.h>
 #endif
 #include "display-private.h"
-#include "frame-private.h"
+#include "frame.h"
 
 #ifdef HAVE_XKB
 /**

src/core/boxes-private.h

@@ -25,8 +25,8 @@
 #define META_BOXES_PRIVATE_H
 
 #include <glib-object.h>
-#include "common.h"
-#include "boxes.h"
+#include <meta/common.h>
+#include <meta/boxes.h>
 
 #define BOX_LEFT(box)    ((box).x)                /* Leftmost pixel of rect */
 #define BOX_RIGHT(box)   ((box).x + (box).width)  /* One pixel past right   */

src/core/boxes.c

@@ -27,7 +27,7 @@
  */
 
 #include "boxes-private.h"
-#include "util.h"
+#include <meta/util.h>
 #include <X11/Xutil.h>  /* Just for the definition of the various gravities */
 
 /* It would make sense to use GSlice here, but until we clean up the
@@ -179,6 +179,16 @@ meta_rectangle_area (const MetaRectangle *rect)
   return rect->width * rect->height;
 }
 
+/**
+ * meta_rectangle_intersect:
+ * @src1: a #MetaRectangle
+ * @src2: another #MetaRectangle
+ * @dest: (out caller-allocates): an empty #MetaRectangle, to be filled
+ *   with the coordinates of the intersection.
+ *
+ * Returns: TRUE is some intersection exists and is not degenerate, FALSE
+ *   otherwise.
+ */
 gboolean
 meta_rectangle_intersect (const MetaRectangle *src1,
 			  const MetaRectangle *src2,
@@ -226,6 +236,13 @@ meta_rectangle_equal (const MetaRectangle *src1,
           (src1->height == src2->height));
 }
 
+/**
+ * meta_rectangle_union:
+ * @rect1: a #MetaRectangle
+ * @rect2: another #MetaRectangle
+ * @dest: (out caller-allocates): an empty #MetaRectangle, to be filled
+ *   with the coordinates of the bounding box.
+ */
 void
 meta_rectangle_union (const MetaRectangle *rect1,
                       const MetaRectangle *rect2,
@@ -340,7 +357,6 @@ meta_rectangle_resize_with_gravity (const MetaRectangle *old_rect,
    */
 
   /* First, the x direction */
-  int adjust = 0;
   switch (gravity)
     {
     case NorthWestGravity:
@@ -373,7 +389,6 @@ meta_rectangle_resize_with_gravity (const MetaRectangle *old_rect,
   rect->width = new_width;
   
   /* Next, the y direction */
-  adjust = 0;
   switch (gravity)
     {
     case NorthWestGravity:

src/core/constraints.c

@@ -28,7 +28,7 @@
 #include "constraints.h"
 #include "workspace-private.h"
 #include "place.h"
-#include "prefs.h"
+#include <meta/prefs.h>
 
 #include <stdlib.h>
 #include <math.h>
@@ -142,6 +142,11 @@ typedef struct
   GList  *usable_screen_region;
   GList  *usable_monitor_region;
 } ConstraintInfo;
+
+static gboolean do_screen_and_monitor_relative_constraints (MetaWindow     *window,
+                                                            GList          *region_spanning_rectangles,
+                                                            ConstraintInfo *info,
+                                                            gboolean        check_only);
 static gboolean constrain_modal_dialog       (MetaWindow         *window,
                                               ConstraintInfo     *info,
                                               ConstraintPriority  priority,
@@ -776,7 +781,12 @@ constrain_modal_dialog (MetaWindow         *window,
 
   info->current.y = y;
   info->current.x = x;
-  return TRUE;
+  /* The calculated position above may need adjustment to make sure the
+   * dialog does not end up partially off-screen */
+  return do_screen_and_monitor_relative_constraints (window,
+                                                     info->usable_screen_region,
+                                                     info,
+                                                     check_only);
 }
 
 static gboolean
@@ -796,7 +806,7 @@ constrain_maximization (MetaWindow         *window,
 
   /* Determine whether constraint applies; exit if it doesn't */
   if ((!window->maximized_horizontally && !window->maximized_vertically) ||
-      META_WINDOW_TILED (window))
+      META_WINDOW_TILED_SIDE_BY_SIDE (window))
     return TRUE;
 
   /* Calculate target_size = maximized size of (window + frame) */
@@ -880,7 +890,7 @@ constrain_tiling (MetaWindow         *window,
     return TRUE;
 
   /* Determine whether constraint applies; exit if it doesn't */
-  if (!META_WINDOW_TILED (window))
+  if (!META_WINDOW_TILED_SIDE_BY_SIDE (window))
     return TRUE;
 
   /* Calculate target_size - as the tile previews need this as well, we
@@ -968,7 +978,8 @@ constrain_size_increments (MetaWindow         *window,
 
   /* Determine whether constraint applies; exit if it doesn't */
   if (META_WINDOW_MAXIMIZED (window) || window->fullscreen || 
-      META_WINDOW_TILED (window) || info->action_type == ACTION_MOVE)
+      META_WINDOW_TILED_SIDE_BY_SIDE (window) ||
+      info->action_type == ACTION_MOVE)
     return TRUE;
 
   /* Determine whether constraint is already satisfied; exit if it is */
@@ -1099,7 +1110,8 @@ constrain_aspect_ratio (MetaWindow         *window,
   constraints_are_inconsistent = minr > maxr;
   if (constraints_are_inconsistent ||
       META_WINDOW_MAXIMIZED (window) || window->fullscreen || 
-      META_WINDOW_TILED (window) || info->action_type == ACTION_MOVE)
+      META_WINDOW_TILED_SIDE_BY_SIDE (window) ||
+      info->action_type == ACTION_MOVE)
     return TRUE;
 
   /* Determine whether constraint is already satisfied; exit if it is.  We

src/core/constraints.h

@@ -25,9 +25,9 @@
 #ifndef META_CONSTRAINTS_H
 #define META_CONSTRAINTS_H
 
-#include "util.h"
+#include <meta/util.h>
 #include "window-private.h"
-#include "frame-private.h"
+#include "frame.h"
 
 typedef enum
 {

src/core/core.c

@@ -25,10 +25,10 @@
 
 #include <config.h>
 #include "core.h"
-#include "frame-private.h"
+#include "frame.h"
 #include "workspace-private.h"
-#include "prefs.h"
-#include "errors.h"
+#include <meta/prefs.h>
+#include <meta/errors.h>
 
 /* Looks up the MetaWindow representing the frame of the given X window.
  * Used as a helper function by a bunch of the functions below.
@@ -107,9 +107,6 @@ meta_core_get (Display *xdisplay,
       case META_CORE_GET_CLIENT_HEIGHT:
         *((gint*)answer) = window->rect.height;
         break;
-      case META_CORE_IS_TITLEBAR_ONSCREEN:
-        *((gboolean*)answer) = meta_window_titlebar_is_onscreen (window);
-        break;
       case META_CORE_GET_CLIENT_XWINDOW:
         *((Window*)answer) = window->xwindow;
         break;
@@ -146,6 +143,9 @@ meta_core_get (Display *xdisplay,
       case META_CORE_GET_FRAME_HEIGHT:
         *((gint*)answer) = window->frame->rect.height;
         break;
+      case META_CORE_GET_THEME_VARIANT:
+        *((char**)answer) = window->gtk_theme_variant;
+        break;
       case META_CORE_GET_SCREEN_WIDTH:
         *((gint*)answer) = window->screen->rect.width;
         break;

src/core/core.h

@@ -27,7 +27,7 @@
 
 /* Don't include core headers here */
 #include <gdk/gdkx.h>
-#include "common.h"
+#include <meta/common.h>
 
 typedef enum
 {
@@ -35,7 +35,6 @@ typedef enum
   META_CORE_WINDOW_HAS_FRAME,
   META_CORE_GET_CLIENT_WIDTH,
   META_CORE_GET_CLIENT_HEIGHT,
-  META_CORE_IS_TITLEBAR_ONSCREEN,
   META_CORE_GET_CLIENT_XWINDOW,
   META_CORE_GET_FRAME_FLAGS,
   META_CORE_GET_FRAME_TYPE,
@@ -48,6 +47,7 @@ typedef enum
   META_CORE_GET_FRAME_Y,
   META_CORE_GET_FRAME_WIDTH,
   META_CORE_GET_FRAME_HEIGHT,
+  META_CORE_GET_THEME_VARIANT,
   META_CORE_GET_SCREEN_WIDTH,
   META_CORE_GET_SCREEN_HEIGHT,
 } MetaCoreGetType;

src/core/delete.c

@@ -25,10 +25,10 @@
 #define _XOPEN_SOURCE /* for kill() */
 
 #include <config.h>
-#include "util.h"
+#include <meta/util.h>
 #include "window-private.h"
-#include "errors.h"
-#include "workspace.h"
+#include <meta/errors.h>
+#include <meta/workspace.h>
 
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -88,23 +88,41 @@ delete_ping_timeout_func (MetaDisplay *display,
       return;
     }
 
-  window_title = g_locale_from_utf8 (window->title, -1, NULL, NULL, NULL);
+  /* This is to get a better string if the title isn't representable
+   * in the locale encoding; actual conversion to UTF-8 is done inside
+   * meta_show_dialog */
+
+  if (window->title && window->title[0])
+    {
+      tmp = g_locale_from_utf8 (window->title, -1, NULL, NULL, NULL);
+      if (tmp == NULL)
+        window_title = NULL;
+      else
+        window_title = window->title;
+      g_free (tmp);
+    }
+  else
+    {
+      window_title = NULL;
+    }
 
   /* Translators: %s is a window title */
-  tmp = g_strdup_printf (_("<tt>%s</tt> is not responding."),
-                         window_title);
+  if (window_title)
+    tmp = g_markup_printf_escaped (_("<tt>%s</tt> is not responding."),
+                                   window_title);
+  else
+    tmp = g_strdup (_("Application is not responding."));
+
   window_content = g_strdup_printf (
       "<big><b>%s</b></big>\n\n<i>%s</i>",
       tmp,
       _("You may choose to wait a short while for it to "
         "continue or force the application to quit entirely."));
 
-  g_free (window_title);
-
   dialog_pid =
     meta_show_dialog ("--question",
-                      window_content, 0,
-                      window->screen->number,
+                      window_content, NULL,
+                      window->screen->screen_name,
                       _("_Wait"), _("_Force Quit"), window->xwindow,
                       NULL, NULL);
 

src/core/display-private.h

@@ -34,11 +34,11 @@
 #include <glib.h>
 #include <X11/Xlib.h>
 #include "eventqueue.h"
-#include "common.h"
-#include "boxes.h"
-#include "display.h"
+#include <meta/common.h>
+#include <meta/boxes.h>
+#include <meta/display.h>
 #include "keybindings-private.h"
-#include "prefs.h"
+#include <meta/prefs.h>
 
 #ifdef HAVE_STARTUP_NOTIFICATION
 #include <libsn/sn.h>
@@ -77,6 +77,13 @@ typedef enum {
  */
 #define N_IGNORED_SERIALS           4
 
+typedef enum {
+  META_TILE_NONE,
+  META_TILE_LEFT,
+  META_TILE_RIGHT,
+  META_TILE_MAXIMIZED
+} MetaTileMode;
+
 struct _MetaDisplay
 {
   GObject parent_instance;
@@ -92,7 +99,7 @@ struct _MetaDisplay
    * class is constructed.
    */
 #define item(x)  Atom atom_##x;
-#include "atomnames.h"
+#include <meta/atomnames.h>
 #undef item
 
   /* This is the actual window from focus events,
@@ -179,6 +186,7 @@ struct _MetaDisplay
   int         grab_anchor_root_x;
   int         grab_anchor_root_y;
   MetaRectangle grab_anchor_window_pos;
+  MetaTileMode  grab_tile_mode;
   int         grab_latest_motion_x;
   int         grab_latest_motion_y;
   gulong      grab_mask;
@@ -221,6 +229,7 @@ struct _MetaDisplay
   KeySym *keymap;
   int keysyms_per_keycode;
   XModifierKeymap *modmap;
+  unsigned int above_tab_keycode;
   unsigned int ignored_modifier_mask;
   unsigned int num_lock_mask;
   unsigned int scroll_lock_mask;
@@ -433,4 +442,7 @@ void meta_display_remove_autoraise_callback (MetaDisplay *display);
 
 void meta_display_overlay_key_activate (MetaDisplay *display);
 
+/* In above-tab-keycode.c */
+guint meta_display_get_above_tab_keycode (MetaDisplay *display);
+
 #endif

src/core/display.c

@@ -34,21 +34,21 @@
 
 #include <config.h>
 #include "display-private.h"
-#include "util.h"
-#include "main.h"
+#include <meta/util.h>
+#include <meta/main.h>
 #include "screen-private.h"
 #include "window-private.h"
 #include "window-props.h"
 #include "group-props.h"
-#include "frame-private.h"
-#include "errors.h"
+#include "frame.h"
+#include <meta/errors.h>
 #include "keybindings-private.h"
-#include "prefs.h"
+#include <meta/prefs.h>
 #include "resizepopup.h"
 #include "xprops.h"
 #include "workspace-private.h"
 #include "bell.h"
-#include "compositor.h"
+#include <meta/compositor.h>
 #include <X11/Xatom.h>
 #include <X11/cursorfont.h>
 #ifdef HAVE_SOLARIS_XINERAMA
@@ -387,26 +387,6 @@ enable_compositor (MetaDisplay *display,
     }
 }
 
-static void
-disable_compositor (MetaDisplay *display)
-{
-  GSList *list;
-  
-  if (!display->compositor)
-    return;
-  
-  for (list = display->screens; list != NULL; list = list->next)
-    {
-      MetaScreen *screen = list->data;
-      
-      meta_compositor_unmanage_screen (screen->display->compositor,
-				       screen);
-    }
-  
-  meta_compositor_destroy (display->compositor);
-  display->compositor = NULL;
-}
-
 static void
 meta_display_init (MetaDisplay *disp)
 {
@@ -437,7 +417,7 @@ meta_display_open (void)
   /* A list of all atom names, so that we can intern them in one go. */
   char *atom_names[] = {
 #define item(x) #x,
-#include "atomnames.h"
+#include <meta/atomnames.h>
 #undef item
   };
   Atom atoms[G_N_ELEMENTS(atom_names)];
@@ -510,7 +490,7 @@ meta_display_open (void)
   {
     int i = 0;    
 #define item(x) the_display->atom_##x = atoms[i++];
-#include "atomnames.h"
+#include <meta/atomnames.h>
 #undef item
   }
 
@@ -573,6 +553,7 @@ meta_display_open (void)
   the_display->grab_window = NULL;
   the_display->grab_screen = NULL;
   the_display->grab_resize_popup = NULL;
+  the_display->grab_tile_mode = META_TILE_NONE;
 
   the_display->grab_edge_resistance_data = NULL;
 
@@ -839,8 +820,7 @@ meta_display_open (void)
   /* We don't composite the windows here because they will be composited 
      faster with the call to meta_screen_manage_all_windows further down 
      the code */
-  if (1) /* meta_prefs_get_compositing_manager ()) FIXME */
-    enable_compositor (the_display, FALSE);
+  enable_compositor (the_display, FALSE);
    
   meta_display_grab (the_display);
   
@@ -1766,9 +1746,10 @@ event_callback (XEvent   *event,
        * we can get into a confused state. So if a keybinding is
        * handled (because it's one of our hot-keys, or because we are
        * in a keyboard-grabbed mode like moving a window, we don't
-       * want to pass the key event to the compositor at all.
+       * want to pass the key event to the compositor or GTK+ at all.
        */
-      bypass_compositor = meta_display_process_key_event (display, window, event);
+      if (meta_display_process_key_event (display, window, event))
+        filter_out_event = bypass_compositor = TRUE;
       break;
     case ButtonPress:
       if (display->grab_op == META_GRAB_OP_COMPOSITOR)
@@ -2543,12 +2524,6 @@ event_callback (XEvent   *event,
                       meta_workspace_focus_default_window (screen->active_workspace, NULL, timestamp);
                     }
                 }
-              else if (event->xclient.message_type ==
-                       display->atom__MUTTER_RESTART_MESSAGE)
-                {
-                  meta_verbose ("Received restart request\n");
-                  meta_restart ();
-                }
               else if (event->xclient.message_type ==
                        display->atom__MUTTER_RELOAD_THEME_MESSAGE)
                 {
@@ -2642,6 +2617,10 @@ event_callback (XEvent   *event,
                   meta_bell_notify (display, xkb_ev);
                 }
 	      break;
+            case XkbNewKeyboardNotify:
+            case XkbMapNotify:
+              meta_display_process_mapping_event (display, event);
+              break;
 	    }
 	}
 #endif
@@ -3515,6 +3494,7 @@ meta_display_begin_grab_op (MetaDisplay *display,
                             int          root_x,
                             int          root_y)
 {
+  MetaWindow *grab_window = NULL;
   Window grab_xwindow;
   
   meta_topic (META_DEBUG_WINDOW_OPS,
@@ -3544,14 +3524,25 @@ meta_display_begin_grab_op (MetaDisplay *display,
         }
     }
 
+  /* If window is a modal dialog attached to its parent,
+   * grab the parent instead for moving.
+   */
+  if (meta_prefs_get_attach_modal_dialogs () &&
+      window && window->type == META_WINDOW_MODAL_DIALOG &&
+      meta_grab_op_is_moving (op))
+    grab_window = meta_window_get_transient_for (window);
+
+  if (grab_window == NULL)
+    grab_window = window;
+
   /* FIXME:
    *   If we have no MetaWindow we do our best
    *   and try to do the grab on the RootWindow.
    *   This will fail if anyone else has any
    *   key grab on the RootWindow.
    */
-  if (window)
-    grab_xwindow = window->frame ? window->frame->xwindow : window->xwindow;
+  if (grab_window)
+    grab_xwindow = grab_window->frame ? grab_window->frame->xwindow : grab_window->xwindow;
   else
     grab_xwindow = screen->xroot;
 
@@ -3573,9 +3564,9 @@ meta_display_begin_grab_op (MetaDisplay *display,
   /* Grab keys for keyboard ops and mouse move/resizes; see #126497 */
   if (grab_op_is_keyboard (op) || grab_op_is_mouse_only (op))
     {
-      if (window)
+      if (grab_window)
         display->grab_have_keyboard =
-                     meta_window_grab_all_keys (window, timestamp);
+                     meta_window_grab_all_keys (grab_window, timestamp);
 
       else
         display->grab_have_keyboard =
@@ -3592,11 +3583,15 @@ meta_display_begin_grab_op (MetaDisplay *display,
     }
   
   display->grab_op = op;
-  display->grab_window = window;
+  display->grab_window = grab_window;
   display->grab_screen = screen;
   display->grab_xwindow = grab_xwindow;
   display->grab_button = button;
   display->grab_mask = modmask;
+  if (window)
+    display->grab_tile_mode = window->tile_mode;
+  else
+    display->grab_tile_mode = META_TILE_NONE;
   display->grab_anchor_root_x = root_x;
   display->grab_anchor_root_y = root_y;
   display->grab_latest_motion_x = root_x;
@@ -3793,6 +3788,7 @@ meta_display_end_grab_op (MetaDisplay *display,
   display->grab_window = NULL;
   display->grab_screen = NULL;
   display->grab_xwindow = None;
+  display->grab_tile_mode = META_TILE_NONE;
   display->grab_op = META_GRAB_OP_NONE;
 
   if (display->grab_resize_popup)
@@ -5184,15 +5180,6 @@ prefs_changed_callback (MetaPreference pref,
     {
       meta_bell_set_audible (display, meta_prefs_bell_is_audible ());
     }
-  else if (pref == META_PREF_COMPOSITING_MANAGER)
-    {
-      gboolean cm = meta_prefs_get_compositing_manager ();
-
-      if (cm)
-        enable_compositor (display, TRUE);
-      else
-	disable_compositor (display);
-    }
   else if (pref == META_PREF_ATTACH_MODAL_DIALOGS)
     {
       MetaDisplay *display = data;

src/core/errors.c

@@ -23,7 +23,7 @@
  */
 
 #include <config.h>
-#include "errors.h"
+#include <meta/errors.h>
 #include "display-private.h"
 #include <errno.h>
 #include <stdlib.h>

src/core/frame.c

@@ -24,9 +24,9 @@
  */
 
 #include <config.h>
-#include "frame-private.h"
+#include "frame.h"
 #include "bell.h"
-#include "errors.h"
+#include <meta/errors.h>
 #include "keybindings-private.h"
 
 #include <X11/extensions/Xrender.h>
@@ -117,11 +117,6 @@ meta_window_ensure_frame (MetaWindow *window)
   
   meta_display_register_x_window (window->display, &frame->xwindow, window);
 
-  /* Now that frame->xwindow is registered with window, we can set its
-   * background.
-   */
-  meta_ui_reset_frame_bg (window->screen->ui, frame->xwindow);
-
   /* Reparent the client window; it may be destroyed,
    * thus the error trap. We'll get a destroy notify later
    * and free everything. Comment in FVWM source code says
@@ -157,6 +152,12 @@ meta_window_ensure_frame (MetaWindow *window)
   
   /* stick frame to the window */
   window->frame = frame;
+
+  /* Now that frame->xwindow is registered with window, we can set its
+   * style and background.
+   */
+  meta_ui_update_frame_style (window->screen->ui, frame->xwindow);
+  meta_ui_reset_frame_bg (window->screen->ui, frame->xwindow);
   
   if (window->title)
     meta_ui_set_frame_title (window->screen->ui,
@@ -282,7 +283,7 @@ meta_frame_get_flags (MetaFrame *frame)
   if (frame->window->shaded)
     flags |= META_FRAME_SHADED;
 
-  if (frame->window->on_all_workspaces)
+  if (frame->window->on_all_workspaces_requested)
     flags |= META_FRAME_STUCK;
 
   /* FIXME: Should we have some kind of UI for windows that are just vertically
@@ -291,6 +292,12 @@ meta_frame_get_flags (MetaFrame *frame)
   if (META_WINDOW_MAXIMIZED (frame->window))
     flags |= META_FRAME_MAXIMIZED;
 
+  if (META_WINDOW_TILED_LEFT (frame->window))
+    flags |= META_FRAME_TILED_LEFT;
+
+  if (META_WINDOW_TILED_RIGHT (frame->window))
+    flags |= META_FRAME_TILED_RIGHT;
+
   if (frame->window->fullscreen)
     flags |= META_FRAME_FULLSCREEN;
 
@@ -322,7 +329,7 @@ meta_frame_calc_geometry (MetaFrame         *frame,
   *geomp = geom;
 }
 
-static void
+static gboolean
 update_shape (MetaFrame *frame)
 {
   if (frame->need_reapply_frame_shape)
@@ -333,10 +340,14 @@ update_shape (MetaFrame *frame)
                                  frame->rect.height,
                                  frame->window->has_shape);
       frame->need_reapply_frame_shape = FALSE;
+
+      return TRUE;
     }
+  else
+    return FALSE;
 }
 
-void
+gboolean
 meta_frame_sync_to_window (MetaFrame *frame,
                            int        resize_gravity,
                            gboolean   need_move,
@@ -344,8 +355,7 @@ meta_frame_sync_to_window (MetaFrame *frame,
 {
   if (!(need_move || need_resize))
     {
-      update_shape (frame);
-      return;
+      return update_shape (frame);
     }
 
   meta_topic (META_DEBUG_GEOMETRY,
@@ -395,6 +405,17 @@ meta_frame_sync_to_window (MetaFrame *frame,
         meta_ui_repaint_frame (frame->window->screen->ui,
                                frame->xwindow);
     }
+
+  return need_resize;
+}
+
+cairo_region_t *
+meta_frame_get_frame_bounds (MetaFrame *frame)
+{
+  return meta_ui_get_frame_bounds (frame->window->screen->ui,
+                                   frame->xwindow,
+                                   frame->rect.width,
+                                   frame->rect.height);
 }
 
 void

src/core/frame.h

@@ -24,7 +24,6 @@
 #ifndef META_FRAME_PRIVATE_H
 #define META_FRAME_PRIVATE_H
 
-#include "frame.h"
 #include "window-private.h"
 
 typedef struct _MetaFrameGeometry MetaFrameGeometry;
@@ -68,16 +67,19 @@ void     meta_window_ensure_frame           (MetaWindow *window);
 void     meta_window_destroy_frame          (MetaWindow *window);
 void     meta_frame_queue_draw              (MetaFrame  *frame);
 
-MetaFrameFlags meta_frame_get_flags (MetaFrame *frame);
+MetaFrameFlags meta_frame_get_flags   (MetaFrame *frame);
+Window         meta_frame_get_xwindow (MetaFrame *frame);
 
 /* These should ONLY be called from meta_window_move_resize_internal */
 void meta_frame_calc_geometry      (MetaFrame         *frame,
                                     MetaFrameGeometry *geomp);
-void meta_frame_sync_to_window     (MetaFrame         *frame,
+gboolean meta_frame_sync_to_window (MetaFrame         *frame,
                                     int                gravity,
                                     gboolean           need_move,
                                     gboolean           need_resize);
 
+cairo_region_t *meta_frame_get_frame_bounds (MetaFrame *frame);
+
 void meta_frame_set_screen_cursor (MetaFrame	*frame,
 				   MetaCursor	cursor);
 

src/core/group-private.h

@@ -24,7 +24,7 @@
 #ifndef META_GROUP_PRIVATE_H
 #define META_GROUP_PRIVATE_H
 
-#include "group.h"
+#include <meta/group.h>
 
 struct _MetaGroup
 {

src/core/group-props.h

@@ -24,7 +24,7 @@
 #ifndef META_GROUP_PROPS_H
 #define META_GROUP_PROPS_H
 
-#include "group.h"
+#include <meta/group.h>
 #include "window-private.h"
 
 void meta_group_reload_property         (MetaGroup   *group,

src/core/group.c

@@ -23,11 +23,11 @@
  */
 
 #include <config.h>
-#include "util.h"
+#include <meta/util.h>
 #include "group-private.h"
 #include "group-props.h"
 #include "window-private.h"
-#include "window.h"
+#include <meta/window.h>
 
 static MetaGroup*
 meta_group_new (MetaDisplay *display,

src/core/iconcache.c

@@ -24,7 +24,7 @@
 #include <config.h>
 #include "iconcache.h"
 #include "ui.h"
-#include "errors.h"
+#include <meta/errors.h>
 
 #include <X11/Xatom.h>
 
@@ -323,6 +323,40 @@ get_pixmap_geometry (MetaDisplay *display,
     *d = depth;
 }
 
+static void
+apply_foreground_background (GdkPixbuf *pixbuf)
+{
+  int w, h;
+  int i, j;
+  guchar *pixels;
+  int stride;
+
+  w = gdk_pixbuf_get_width (pixbuf);
+  h = gdk_pixbuf_get_height (pixbuf);
+  pixels = gdk_pixbuf_get_pixels (pixbuf);
+  stride = gdk_pixbuf_get_rowstride (pixbuf);
+
+  i = 0;
+  while (i < h)
+    {
+      j = 0;
+      while (j < w)
+        {
+          guchar *p = pixels + i * stride + j * 4;
+          if (p[3] == 0)
+            p[0] = p[1] = p[2] =  0xff; /* white background */
+          else
+            p[0] = p[1] = p[2] = 0x00; /* black foreground */
+
+          p[3] = 0xff;
+
+          ++j;
+        }
+
+      ++i;
+    }
+}
+
 static GdkPixbuf*
 apply_mask (GdkPixbuf *pixbuf,
             GdkPixbuf *mask)
@@ -352,16 +386,10 @@ apply_mask (GdkPixbuf *pixbuf,
       j = 0;
       while (j < w)
         {
-          guchar *s = src + i * src_stride + j * 3;
+          guchar *s = src + i * src_stride + j * 4;
           guchar *d = dest + i * dest_stride + j * 4;
 
-          /* s[0] == s[1] == s[2], they are 255 if the bit was set, 0
-           * otherwise
-           */
-          if (s[0] == 0)
-            d[3] = 0;   /* transparent */
-          else
-            d[3] = 255; /* opaque */
+          d[3] = s[3];
 
           ++j;
         }
@@ -385,25 +413,32 @@ try_pixmap_and_mask (MetaDisplay *display,
 {
   GdkPixbuf *unscaled = NULL;
   GdkPixbuf *mask = NULL;
-  int w, h;
+  int w, h, d;
 
   if (src_pixmap == None)
     return FALSE;
 
   meta_error_trap_push (display);
 
-  get_pixmap_geometry (display, src_pixmap, &w, &h, NULL);
+  get_pixmap_geometry (display, src_pixmap, &w, &h, &d);
 
   unscaled = meta_gdk_pixbuf_get_from_pixmap (src_pixmap,
                                               0, 0,
                                               w, h);
 
+  /* A depth 1 pixmap has 0 background, and 1 foreground, but
+   * cairo and meta_gdk_pixbuf_get_from_pixmap consider it
+   * to be 0 transparent, 1 opaque */
+  if (d == 1)
+    apply_foreground_background (unscaled);
+
   if (unscaled && src_mask != None)
     {
-      get_pixmap_geometry (display, src_mask, &w, &h, NULL);
-      mask = meta_gdk_pixbuf_get_from_pixmap (src_mask,
-                                              0, 0,
-                                              w, h);
+      get_pixmap_geometry (display, src_mask, &w, &h, &d);
+      if (d == 1)
+        mask = meta_gdk_pixbuf_get_from_pixmap (src_mask,
+                                                0, 0,
+                                                w, h);
     }
 
   meta_error_trap_pop (display);

src/core/keybindings-private.h

@@ -29,7 +29,7 @@
 #ifndef META_KEYBINDINGS_PRIVATE_H
 #define META_KEYBINDINGS_PRIVATE_H
 
-#include "keybindings.h"
+#include <meta/keybindings.h>
 
 void     meta_display_init_keys             (MetaDisplay *display);
 void     meta_display_shutdown_keys         (MetaDisplay *display);