[gnome-shell] workspacesView: Consider workspaces-only-on-primary when panning

[Florian Müllner <fmuellner src gnome org>]

commit 21ddbf0b8f5a12f9cd1eeb976f8037eafc3c3abe
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Jun 24 18:19:40 2016 +0200

    workspacesView: Consider workspaces-only-on-primary when panning
    
    It is odd to switch workspaces on the primary monitor when panning on
    a monitor without workspaces, so reject the gesture on non-primary
    monitors when workspaces-only-on-primary is disabled.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=766883

 js/ui/workspacesView.js |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/workspacesView.js b/js/ui/workspacesView.js
index f8217cf..2eacb5f 100644
--- a/js/ui/workspacesView.js
+++ b/js/ui/workspacesView.js
@@ -437,6 +437,12 @@ const WorkspacesDisplay = new Lang.Class({
         let panAction = new Clutter.PanAction({ threshold_trigger_edge: Clutter.GestureTriggerEdge.AFTER });
         panAction.connect('pan', Lang.bind(this, this._onPan));
         panAction.connect('gesture-begin', Lang.bind(this, function() {
+            if (this._workspacesOnlyOnPrimary) {
+                let event = Clutter.get_current_event();
+                if (this._getMonitorIndexForEvent(event) != this._primaryIndex)
+                    return false;
+            }
+
             for (let i = 0; i < this._workspacesViews.length; i++)
                 this._workspacesViews[i].startSwipeScroll();
             return true;