From: Giovanni Campagna <gcampagna@src.gnome.org>
Date: Sat, 19 Jan 2013 01:26:44 +0000 (+0100)
Subject: WorkspacesView: don't fail when doing window DND from the last workspace
X-Git-Tag: archive/raspbian/50.5-1+rpi1~1^2~1013^2^2~4448
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=9e60a55dd723097cb0fa8af139e9c521e32f405b;p=gnome-shell.git

WorkspacesView: don't fail when doing window DND from the last workspace

DND of windows has a lot of side effects, including the possibility of
current workspace disappering from under our feet. We need to account
for that when trying to activate it.

https://bugzilla.gnome.org/show_bug.cgi?id=685285
---

diff --git a/js/ui/workspacesView.js b/js/ui/workspacesView.js
index ffabaf476..a409223d5 100644
--- a/js/ui/workspacesView.js
+++ b/js/ui/workspacesView.js
@@ -389,6 +389,15 @@ const WorkspacesView = new Lang.Class({
         let current = Math.round(adj.value);
 
         if (active != current) {
+            if (!this._workspaces[current]) {
+                // The current workspace was destroyed. This could happen
+                // when you are on the last empty workspace, and consolidate
+                // windows using the thumbnail bar.
+                // In that case, the intended behavior is to stay on the empty
+                // workspace, which is the last one, so pick it.
+                current = this._workspaces.length - 1;
+            }
+
             let metaWorkspace = this._workspaces[current].metaWorkspace;
             metaWorkspace.activate(global.get_current_time());
         }