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clutter/stage: Repick when pointer actor goes unmapped

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I've overseen quite an important case in commit
98a5cb37d9: Repicking only when actors get
destroyed is not enough, we actually need to repick when actors go
hidden/unmapped.

While we could also listen to notify::mapped just like we listen to
notify::reactive, it seems better to avoid using property notifications
here due to the usage of g_object_freeze/thaw_notify() in ClutterActor.
It can lead to the stage receiving a notify::mapped with mapped = true
for a pointer actor, which really shouldn't happen (just like
notify::reactive with reactive = true shouldn't happen).

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5124
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2333>
This commit is contained in:
Jonas Dreßler 2022-03-09 15:53:11 +01:00 committed by Marge Bot
parent 358df1c569
commit cfdca246f2
3 changed files with 69 additions and 57 deletions
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18
clutter/clutter/clutter-actor.c
View File

@ -1701,6 +1701,13 @@ clutter_actor_real_unmap (ClutterActor *self)
*/
g_object_notify_by_pspec (G_OBJECT (self), obj_props[PROP_MAPPED]);
if (priv->has_pointer)
{
ClutterActor *stage = _clutter_actor_get_stage_internal (self);
clutter_stage_invalidate_focus (CLUTTER_STAGE (stage), self);
}
/* relinquish keyboard focus if we were unmapped while owning it */
if (!CLUTTER_ACTOR_IS_TOPLEVEL (self))
maybe_unset_key_focus (self);
@ -12440,8 +12447,12 @@ void
clutter_actor_set_reactive (ClutterActor *actor,
gboolean reactive)
{
ClutterActorPrivate *priv;
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
priv = actor->priv;
if (reactive == CLUTTER_ACTOR_IS_REACTIVE (actor))
return;
@ -12451,6 +12462,13 @@ clutter_actor_set_reactive (ClutterActor *actor,
CLUTTER_ACTOR_UNSET_FLAGS (actor, CLUTTER_ACTOR_REACTIVE);
g_object_notify_by_pspec (G_OBJECT (actor), obj_props[PROP_REACTIVE]);
if (!CLUTTER_ACTOR_IS_REACTIVE (actor) && priv->has_pointer)
{
ClutterActor *stage = _clutter_actor_get_stage_internal (actor);
clutter_stage_invalidate_focus (CLUTTER_STAGE (stage), actor);
}
}
/**

3
clutter/clutter/clutter-stage-private.h
View File

@ -154,6 +154,9 @@ ClutterActor * clutter_stage_pick_and_update_device (ClutterStage *s
void clutter_stage_unlink_grab (ClutterStage *self,
ClutterGrab *grab);
void clutter_stage_invalidate_focus (ClutterStage *self,
ClutterActor *actor);
G_END_DECLS
#endif /* __CLUTTER_STAGE_PRIVATE_H__ */

89
clutter/clutter/clutter-stage.c
View File

@ -3150,14 +3150,43 @@ clutter_stage_set_actor_needs_immediate_relayout (ClutterStage *stage)
priv->actor_needs_immediate_relayout = TRUE;
}
static void
on_device_actor_reactive_changed (ClutterActor *actor,
GParamSpec *pspec,
PointerDeviceEntry *entry)
void
clutter_stage_invalidate_focus (ClutterStage *self,
ClutterActor *actor)
{
ClutterStage *self = entry->stage;
ClutterStagePrivate *priv = self->priv;
GHashTableIter iter;
gpointer value;
g_assert (!clutter_actor_get_reactive (actor));
if (CLUTTER_ACTOR_IN_DESTRUCTION (self))
return;
g_assert (!clutter_actor_is_mapped (actor) || !clutter_actor_get_reactive (actor));
g_hash_table_iter_init (&iter, priv->pointer_devices);
while (g_hash_table_iter_next (&iter, NULL, &value))
{
PointerDeviceEntry *entry = value;
if (entry->current_actor != actor)
continue;
clutter_stage_pick_and_update_device (self,
entry->device,
NULL,
CLUTTER_DEVICE_UPDATE_IGNORE_CACHE |
CLUTTER_DEVICE_UPDATE_EMIT_CROSSING,
entry->coords,
CLUTTER_CURRENT_TIME);
}
g_hash_table_iter_init (&iter, priv->touch_sequences);
while (g_hash_table_iter_next (&iter, NULL, &value))
{
PointerDeviceEntry *entry = value;
if (entry->current_actor != actor)
continue;
clutter_stage_pick_and_update_device (self,
entry->device,
@ -3166,37 +3195,17 @@ on_device_actor_reactive_changed (ClutterActor *actor,
CLUTTER_DEVICE_UPDATE_EMIT_CROSSING,
entry->coords,
CLUTTER_CURRENT_TIME);
}
}
static void
on_device_actor_destroyed (ClutterActor *actor,
PointerDeviceEntry *entry)
{
/* Simply unset the current_actor pointer here, there's no need to
* unset has_pointer or to disconnect any signals because the actor
* is gone anyway.
*/
entry->current_actor = NULL;
g_clear_pointer (&entry->clear_area, cairo_region_destroy);
clutter_stage_repick_device (entry->stage, entry->device);
if (actor != CLUTTER_ACTOR (self))
g_assert (!clutter_actor_has_pointer (actor));
}
static void
free_pointer_device_entry (PointerDeviceEntry *entry)
{
if (entry->current_actor)
{
ClutterActor *actor = entry->current_actor;
g_signal_handlers_disconnect_by_func (actor,
G_CALLBACK (on_device_actor_reactive_changed),
entry);
g_signal_handlers_disconnect_by_func (actor,
G_CALLBACK (on_device_actor_destroyed),
entry);
_clutter_actor_set_has_pointer (actor, FALSE);
}
_clutter_actor_set_has_pointer (entry->current_actor, FALSE);
g_clear_pointer (&entry->clear_area, cairo_region_destroy);
@ -3240,31 +3249,13 @@ clutter_stage_update_device_entry (ClutterStage *self,
if (entry->current_actor != actor)
{
if (entry->current_actor)
{
ClutterActor *old_actor = entry->current_actor;
g_signal_handlers_disconnect_by_func (old_actor,
G_CALLBACK (on_device_actor_reactive_changed),
entry);
g_signal_handlers_disconnect_by_func (old_actor,
G_CALLBACK (on_device_actor_destroyed),
entry);
_clutter_actor_set_has_pointer (old_actor, FALSE);
}
_clutter_actor_set_has_pointer (entry->current_actor, FALSE);
entry->current_actor = actor;
if (actor)
{
g_signal_connect (actor, "notify::reactive",
G_CALLBACK (on_device_actor_reactive_changed), entry);
g_signal_connect (actor, "destroy",
G_CALLBACK (on_device_actor_destroyed), entry);
_clutter_actor_set_has_pointer (actor, TRUE);
}
}
g_clear_pointer (&entry->clear_area, cairo_region_destroy);
if (clear_area)