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wayland: manually activate/deactivate stage when taking/dropping grab

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clutter currently never emits activated or deactivated signals on
the stage object when using the EGL backend. Since the stage never
gets activated, accessibility tools, like orca, don't work.

This commit makes mutter take on the responsibility, by tracking
when the stage gains/loses focus, and then synthesizing stage
CLUTTER_STAGE_STATE_ACTIVATED state events.

A limitation of this approach is that clutter's own notion of
the stage activeness won't reflect mutter's notion of the
stage activeness.  This isn't a problem, in practice, and can
be addressed in the medium-term after making changes to
clutter.

https://bugzilla.gnome.org/show_bug.cgi?id=746670
This commit is contained in:
Ray Strode
2015-03-24 12:40:10 -04:00
parent c3455b01af
commit 9f17c05a15
3 changed files with 73 additions and 0 deletions
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4
src/core/display.c
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@ -52,6 +52,7 @@
#include <meta/meta-backend.h>
#include "backends/native/meta-backend-native.h"
#include "backends/x11/meta-backend-x11.h"
#include "backends/meta-stage.h"
#include <clutter/x11/clutter-x11.h>
#ifdef HAVE_RANDR
@ -1411,6 +1412,8 @@ meta_display_sync_wayland_input_focus (MetaDisplay *display)
#ifdef HAVE_WAYLAND
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWindow *focus_window = NULL;
MetaBackend *backend = meta_get_backend ();
MetaStage *stage = META_STAGE (meta_backend_get_stage (backend));
if (!meta_display_windows_are_interactable (display))
focus_window = NULL;
@ -1421,6 +1424,7 @@ meta_display_sync_wayland_input_focus (MetaDisplay *display)
else
meta_topic (META_DEBUG_FOCUS, "Focus change has no effect, because there is no matching wayland surface");
meta_stage_set_active (stage, focus_window == NULL);
meta_wayland_compositor_set_input_focus (compositor, focus_window);
meta_wayland_seat_repick (compositor->seat);