[gnome-shell] appDisplay: Fix return value for _onScroll

[Florian Müllner <fmuellner src gnome org>]

commit 2980515c857e8ebbd4607104e0620d856892337e
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Sep 4 13:54:53 2013 +0200

    appDisplay: Fix return value for _onScroll
    
    ClutterActor::scroll-event has a boolean return value to indicate
    whether the event has been handled, or event emission should continue.
    Now that we are using an StScrollView, we depend on this to avoid
    propagating the event to the view's own handler.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=707409

 js/ui/appDisplay.js |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 70b63ef..ece06a5 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -401,8 +401,8 @@ const AllView = new Lang.Class({
     },
 
     _onScroll: function(actor, event) {
-         if(this._displayingPopup)
-            return;
+        if (this._displayingPopup)
+            return true;
         let direction = event.get_scroll_direction();
         if (direction == Clutter.ScrollDirection.UP) {
             if (this._currentPage > 0)
@@ -413,6 +413,7 @@ const AllView = new Lang.Class({
                     this.goToPage(this._currentPage + 1);
             }
         }
+        return true;
     },
 
     _onPan: function(action) {