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wayland: fix pointer focus for destroyed surfaces

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We had an assertion in meta_wayland_surface_free() that after
a repick() we would not choose the freed surface, but that didn't
consider surfaces destroyed while holding the implicit pointer
grab (ie, because the user clicked on the X button). In that case,
we need to bypass the grab infrastructure and explicitly unfocus
the dead surface.

https://bugzilla.gnome.org/show_bug.cgi?id=706982
This commit is contained in:
Giovanni Campagna 2013-08-28 16:23:34 +02:00
parent 7bd4e6ecb0
commit ad4053ab84
3 changed files with 29 additions and 2 deletions
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18
src/wayland/meta-wayland-pointer.c
View File

@ -324,3 +324,21 @@ meta_wayland_pointer_end_modal (MetaWaylandPointer *pointer)
meta_wayland_pointer_end_grab (pointer);
g_slice_free (MetaWaylandPointerGrab, grab);
}
/* Called when the focused resource is destroyed */
void
meta_wayland_pointer_destroy_focus (MetaWaylandPointer *pointer)
{
if (pointer->grab == &pointer->default_grab)
{
/* The surface was destroyed, but had the implicit pointer grab.
Bypass the grab interface. */
g_assert (pointer->button_count > 0);
/* Note: we focus the NULL interface, not the current one, because
we have button down, and the clients would be confused if the
pointer enters the surface.
*/
meta_wayland_pointer_set_focus (pointer, NULL, 0, 0);
}
}

4
src/wayland/meta-wayland-pointer.h
View File

@ -35,6 +35,10 @@ meta_wayland_pointer_set_focus (MetaWaylandPointer *pointer,
MetaWaylandSurface *surface,
wl_fixed_t sx,
wl_fixed_t sy);
void
meta_wayland_pointer_destroy_focus (MetaWaylandPointer *pointer);
void
meta_wayland_pointer_start_grab (MetaWaylandPointer *pointer,
MetaWaylandPointerGrab *grab);

9
src/wayland/meta-wayland.c
View File

@ -497,9 +497,14 @@ meta_wayland_surface_free (MetaWaylandSurface *surface)
meta_wayland_compositor_repick (compositor);
/* Check that repick didn't pick the freed surface */
g_assert (surface != compositor->seat->pointer.focus);
g_assert (surface != compositor->seat->keyboard.focus);
if (surface == compositor->seat->pointer.focus)
{
meta_wayland_pointer_destroy_focus (&compositor->seat->pointer);
g_assert (surface != compositor->seat->pointer.focus);
g_assert (surface != compositor->seat->pointer.grab->focus);
}
if (compositor->implicit_grab_surface == surface)
compositor->implicit_grab_surface = compositor->seat->pointer.current;