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clutter: Propagate events only inside the grab

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The grab actor becomes the "root" of the events being handled, events
inside propagate normally, but become silenced when falling outside
the grab area.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2068>
This commit is contained in:
Carlos Garnacho 2021-10-27 00:13:35 +02:00 committed by Marge Bot
parent ba895ca8e2
commit ec3b8fe85b
3 changed files with 18 additions and 1 deletions
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4
clutter/clutter/clutter-main.c
View File

@ -683,7 +683,9 @@ emit_event_chain (ClutterEvent *event)
return;
}
_clutter_actor_handle_event (event->any.source, NULL, event);
_clutter_actor_handle_event (event->any.source,
clutter_stage_get_grab_actor (event->any.stage),
event);
}
/*

12
clutter/clutter/clutter-stage.c
View File

@ -3846,3 +3846,15 @@ clutter_grab_dismiss (ClutterGrab *grab)
g_free (grab);
}
ClutterActor *
clutter_stage_get_grab_actor (ClutterStage *stage)
{
ClutterStagePrivate *priv = stage->priv;
if (!priv->topmost_grab)
return NULL;
/* Return active grab */
return priv->topmost_grab->actor;
}

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

@ -274,6 +274,9 @@ CLUTTER_EXPORT
ClutterGrab * clutter_stage_grab (ClutterStage *stage,
ClutterActor *actor);
CLUTTER_EXPORT
ClutterActor * clutter_stage_get_grab_actor (ClutterStage *stage);
G_END_DECLS
#endif /* __CLUTTER_STAGE_H__ */