[gnome-shell] tweener: remove tweens when target.actor is destroyed

[Owen Taylor <otaylor src gnome org>]

commit 192d3a94edebbd497a4aa445da76eb73933d627c
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Tue Feb 22 09:25:48 2011 -0500

    tweener: remove tweens when target.actor is destroyed
    
    We already remove tweens automatically when a Clutter actor is destroyed;
    do the same when the target is a JS delegate with an actor property.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=642925

 js/ui/tweener.js |   15 +++++++++++----
 1 files changed, 11 insertions(+), 4 deletions(-)
---
diff --git a/js/ui/tweener.js b/js/ui/tweener.js
index 685f4b3..8a633bd 100644
--- a/js/ui/tweener.js
+++ b/js/ui/tweener.js
@@ -62,9 +62,16 @@ function addTween(target, tweeningParameters) {
 function _wrapTweening(target, tweeningParameters) {
     let state = _getTweenState(target);
 
-    if (target instanceof Clutter.Actor && !state.destroyedId)
-        state.destroyedId = target.connect('destroy', _actorDestroyed);
-    
+    if (!state.destroyedId) {
+        if (target instanceof Clutter.Actor) {
+            state.actor = target;
+            state.destroyedId = target.connect('destroy', _actorDestroyed);
+        } else if (target.actor && target.actor instanceof Clutter.Actor) {
+            state.actor = target.actor;
+            state.destroyedId = target.actor.connect('destroy', function() { _actorDestroyed(target); });
+        }
+    }
+
     _addHandler(target, tweeningParameters, 'onStart', _tweenStarted);
     _addHandler(target, tweeningParameters, 'onComplete', _tweenCompleted);
 }
@@ -82,7 +89,7 @@ function _resetTweenState(target) {
 
     if (state) {
         if (state.destroyedId)
-            target.disconnect(state.destroyedId);
+            state.actor.disconnect(state.destroyedId);
         if (state.idleCompletedId)
             Mainloop.source_remove(state.idleCompletedId);
     }