[mutter/gbsneto/cancel-input-actions: 3/5] clutter/gesture-action: Cancel gesture when disabling the action

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 633d5d1b847bbfa5c94c662e262ccc921bbf40cb
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Wed Apr 8 12:40:03 2020 -0300

    clutter/gesture-action: Cancel gesture when disabling the action
    
    Like the click action, it makes sense to cancel the ongoing gesture
    when the action is disabled. Do so by overriding our new friend,
    ClutterActorMeta.set_enabled, and canceling the gesture when disabling
    the action.
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1188

 clutter/clutter/clutter-gesture-action.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
---
diff --git a/clutter/clutter/clutter-gesture-action.c b/clutter/clutter/clutter-gesture-action.c
index bd345eacb..636053036 100644
--- a/clutter/clutter/clutter-gesture-action.c
+++ b/clutter/clutter/clutter-gesture-action.c
@@ -556,6 +556,21 @@ clutter_gesture_action_set_actor (ClutterActorMeta *meta,
   meta_class->set_actor (meta, actor);
 }
 
+static void
+clutter_gesture_action_set_enabled (ClutterActorMeta *meta,
+                                    gboolean          is_enabled)
+{
+  ClutterActorMetaClass *meta_class =
+    CLUTTER_ACTOR_META_CLASS (clutter_gesture_action_parent_class);
+  ClutterGestureAction *gesture_action = CLUTTER_GESTURE_ACTION (meta);
+  ClutterGestureActionPrivate *priv = gesture_action->priv;
+
+  if (!is_enabled && priv->in_gesture)
+    cancel_gesture (gesture_action);
+
+  meta_class->set_enabled (meta, is_enabled);
+}
+
 static gboolean
 default_event_handler (ClutterGestureAction *action,
                        ClutterActor *actor)
@@ -654,6 +669,7 @@ clutter_gesture_action_class_init (ClutterGestureActionClass *klass)
   gobject_class->get_property = clutter_gesture_action_get_property;
 
   meta_class->set_actor = clutter_gesture_action_set_actor;
+  meta_class->set_enabled = clutter_gesture_action_set_enabled;
 
   klass->gesture_begin = default_event_handler;
   klass->gesture_progress = default_event_handler;