From: Florian Müllner <fmuellner@gnome.org>
Date: Mon, 21 Nov 2016 17:09:42 +0000 (+0100)
Subject: animations: Guard against empty animations
X-Git-Tag: archive/raspbian/50.5-1+rpi1~1^2~1013^2^2~635
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=e5101eb4072c3445ea2f029cc1abf774316351db;p=gnome-shell.git

animations: Guard against empty animations

Our animation code not only relies on the animation being loaded
(which we handle), but also on having at least one frame - otherwise
the computation of the next frame index will turn up NaN through
division by zero. Guard against this case by treating empty animations
as not loaded.

https://bugzilla.gnome.org/show_bug.cgi?id=774805
---

diff --git a/js/ui/animation.js b/js/ui/animation.js
index 23ec934d8..1ae9ba0ea 100644
--- a/js/ui/animation.js
+++ b/js/ui/animation.js
@@ -67,7 +67,7 @@ const Animation = new Lang.Class({
     },
 
     _animationsLoaded: function() {
-        this._isLoaded = true;
+        this._isLoaded = this._animations.get_n_children() > 0;
 
         if (this._isPlaying)
             this.play();