dnd: Don't try to remove an invalid idle source

As the handler returns false, the corresponding source is removed
automatically and its id invalidated. Reset the id to 0 to reflect
this, otherwise newer versions of GLib will print a warning when
we later try to remove it explicitly.

https://bugzilla.gnome.org/show_bug.cgi?id=711555

diff --git a/js/ui/dnd.js b/js/ui/dnd.js
index 54193ad808647d1cdf9a9031610fe5e8bba12f32..8172ac51c3dc0cab5b866b90d662529b7d2284bc 100644 (file)
--- a/js/ui/dnd.js
+++ b/js/ui/dnd.js
@@ -346,6 +346,7 @@ const _Draggable = new Lang.Class({
     },
 
     _updateDragHover : function () {
+        this._updateHoverId = 0;
         let target = this._dragActor.get_stage().get_actor_at_pos(Clutter.PickMode.ALL,
                                                                   this._dragX, this._dragY);
         let dragEvent = {