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MetaWaylandSurface: Add 'unmapped' signal

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Meant to be used by users of MetaWaylandSurface's that need to know
when the surface was unmapped. So far only emitted by shell surfaces
(surfaces with MetaWindow's).

https://bugzilla.gnome.org/show_bug.cgi?id=769786
This commit is contained in:
Jonas Ådahl 2016-08-18 12:57:17 +08:00
parent f49458ccd9
commit aea706230d
1 changed files with 14 additions and 0 deletions
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14
src/wayland/meta-wayland-surface.c
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@ -120,6 +120,7 @@ G_DEFINE_TYPE (MetaWaylandSurfaceRoleDND,
enum {
SURFACE_DESTROY,
SURFACE_UNMAPPED,
N_SURFACE_SIGNALS
};
@ -1100,9 +1101,14 @@ void
meta_wayland_surface_set_window (MetaWaylandSurface *surface,
MetaWindow *window)
{
gboolean was_unmapped = surface->window && !window;
surface->window = window;
sync_reactive (surface);
sync_drag_dest_funcs (surface);
if (was_unmapped)
g_signal_emit (surface, surface_signals[SURFACE_UNMAPPED], 0);
}
static void
@ -1855,6 +1861,14 @@ meta_wayland_surface_class_init (MetaWaylandSurfaceClass *klass)
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_UNMAPPED] =
g_signal_new ("unmapped",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void