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* clutter/clutter-main.[ch]: added clutter_grab_keyboard,

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clutter_ungrab_keyboard and clutter_get_keyboard_grab, in
clutter_do_event deliver keyboard related events only to the
actor with the keyboard grab if a grab exists.
* clutter/clutter-private.h: added keyboard_grab_actor to context.
* tests/test-grab.c: added testing for testing the keyboard grab.
This commit is contained in:
Øyvind Kolås
2007-11-15 18:00:24 +00:00
parent c640b05182
commit 3b4f603368
5 changed files with 132 additions and 6 deletions
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92
clutter/clutter-main.c
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@ -1285,7 +1285,6 @@ clutter_do_event (ClutterEvent *event)
clutter_actor_event (context->pointer_grab_actor, event, FALSE);
return;
}
deliver_event (event);
break;
case CLUTTER_DESTROY_NOTIFY:
@ -1304,6 +1303,11 @@ clutter_do_event (ClutterEvent *event)
g_return_if_fail (actor != NULL);
if (context->keyboard_grab_actor != NULL)
{
clutter_actor_event (context->keyboard_grab_actor, event, FALSE);
return;
}
deliver_event (event);
}
break;
@ -1355,7 +1359,6 @@ clutter_do_event (ClutterEvent *event)
event, FALSE);
return;
}
deliver_event (event);
}
break;
@ -1557,3 +1560,88 @@ clutter_get_pointer_grab (void)
return context->pointer_grab_actor;
}
static void
on_keyboard_grab_weak_notify (gpointer data,
GObject *where_the_object_was)
{
ClutterMainContext *context;
context = clutter_context_get_default ();
context->keyboard_grab_actor = NULL;
clutter_ungrab_keyboard ();
}
/**
* clutter_grab_keyboard:
* @actor: a #ClutterActor
*
* Grabs keyboard events, after the grab is done keyboard events ("key-press-event"
* and "key-release-event") are delivered to this actor directly. The source
* set in the event will be the actor that would have received the event if the
* keyboard grab was not in effect.
*
* Since: 0.6
*/
void
clutter_grab_keyboard (ClutterActor *actor)
{
ClutterMainContext *context;
g_return_if_fail (actor == NULL || CLUTTER_IS_ACTOR (actor));
context = clutter_context_get_default ();
if (context->keyboard_grab_actor == actor)
return;
if (context->keyboard_grab_actor)
{
g_object_weak_unref (G_OBJECT (context->keyboard_grab_actor),
on_keyboard_grab_weak_notify,
NULL);
context->keyboard_grab_actor = NULL;
}
if (actor)
{
context->keyboard_grab_actor = actor;
g_object_weak_ref (G_OBJECT (actor),
on_keyboard_grab_weak_notify,
NULL);
}
}
/**
* clutter_ungrab_keyboard:
*
* Removes an existing grab of the keyboard.
*
* Since: 0.6
*/
void
clutter_ungrab_keyboard (void)
{
clutter_grab_keyboard (NULL);
}
/**
* clutter_get_keyboard_grab:
*
* Queries the current keyboard grab of clutter.
*
* Return value: the actor currently holding the keyboard grab, or NULL if there is no grab.
*
* Since: 0.6
*/
ClutterActor *
clutter_get_keyboard_grab (void)
{
ClutterMainContext *context;
context = clutter_context_get_default ();
return context->keyboard_grab_actor;
}