From 1dadcee5c9ff9d2b4bd0c02cf3b17771aadb8367 Mon Sep 17 00:00:00 2001
From: Ray Strode <rstrode@redhat.com>
Date: Mon, 25 Mar 2013 10:42:21 -0400
Subject: [PATCH] background: don't choke on huge slide show durations

if a slideshow file has a really large duration we'll currently
throw an exception.

This bug is aggravated by the fact that some versions of
gnome-desktop use UINT_MAX as a sentinel value to mean,
"don't ever update slide".

This commit treats durations that would overflow as infinitely
long.

https://bugzilla.gnome.org/show_bug.cgi?id=696157
---
 js/ui/background.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/js/ui/background.js b/js/ui/background.js
index 262545222..8c2870c45 100644
--- a/js/ui/background.js
+++ b/js/ui/background.js
@@ -503,6 +503,10 @@ const Background = new Lang.Class({
 
         let interval = Math.max(ANIMATION_MIN_WAKEUP_INTERVAL * 1000,
                                 timePerStep);
+
+        if (interval > GLib.MAXUINT32)
+            return;
+
         this._updateAnimationTimeoutId = GLib.timeout_add(GLib.PRIORITY_DEFAULT,
                                                       interval,
                                                       Lang.bind(this, function() {