From e5101eb4072c3445ea2f029cc1abf774316351db Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20M=C3=BCllner?= <fmuellner@gnome.org>
Date: Mon, 21 Nov 2016 18:09:42 +0100
Subject: [PATCH] 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
---
 js/ui/animation.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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();