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compositor: Add an API to focus the stage X window

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gnome-shell has traditionally just called XSetInputFocus when wanting to
set the input focus to the stage window, but this might cause strange,
hard-to-reproduce bugs because of an interference with mutter's focus
prediction. Add API to allow gnome-shell to focus the stage window that
also updates mutter's internal focus prediction state.

https://bugzilla.gnome.org/show_bug.cgi?id=700735
This commit is contained in:
Jasper St. Pierre 2013-05-23 16:21:24 -04:00
parent 2ca2838548
commit bd19de9429
4 changed files with 41 additions and 0 deletions
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22
src/compositor/compositor.c
View File

@ -369,6 +369,28 @@ meta_empty_stage_input_region (MetaScreen *screen)
meta_set_stage_input_region (screen, region);
}
void
meta_focus_stage_window (MetaScreen *screen,
guint32 timestamp)
{
ClutterStage *stage;
Window window;
stage = CLUTTER_STAGE (meta_get_stage_for_screen (screen));
if (!stage)
return;
window = clutter_x11_get_stage_window (stage);
if (window == None)
return;
meta_display_set_input_focus_xwindow (screen->display,
screen,
window,
timestamp);
}
gboolean
meta_begin_modal_for_plugin (MetaScreen *screen,
MetaPlugin *plugin,

5
src/core/display-private.h
View File

@ -465,4 +465,9 @@ gboolean meta_display_process_barrier_event (MetaDisplay *display,
XIBarrierEvent *event);
#endif /* HAVE_XI23 */
void meta_display_set_input_focus_xwindow (MetaDisplay *display,
MetaScreen *screen,
Window window,
guint32 timestamp);
#endif

12
src/core/display.c
View File

@ -5806,6 +5806,18 @@ meta_display_request_take_focus (MetaDisplay *display,
timestamp);
}
void
meta_display_set_input_focus_xwindow (MetaDisplay *display,
MetaScreen *screen,
Window window,
guint32 timestamp)
{
request_xserver_input_focus_change (display,
screen,
window,
timestamp);
}
void
meta_display_focus_the_no_focus_window (MetaDisplay *display,
MetaScreen *screen,

2
src/meta/compositor-mutter.h
View File

@ -46,5 +46,7 @@ void meta_enable_unredirect_for_screen (MetaScreen *screen);
void meta_set_stage_input_region (MetaScreen *screen,
XserverRegion region);
void meta_empty_stage_input_region (MetaScreen *screen);
void meta_focus_stage_window (MetaScreen *screen,
guint32 timestamp);
#endif