From c450120409ebca2580d1c6383c1e5be54a6c6c08 Mon Sep 17 00:00:00 2001
From: Adel Gadllah <adel.gadllah@gmail.com>
Date: Sat, 23 Apr 2011 09:45:58 +0200
Subject: [PATCH] SwipeScroll: Only allow starting with the left button

Currently we allow starting swipe-scroll with any mouse button
which is weird from an UI pov and causes inconsistencies with
event handling.

https://bugzilla.gnome.org/show_bug.cgi?id=647186
---
 js/ui/overview.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/js/ui/overview.js b/js/ui/overview.js
index 9d4cad82a..ec6762544 100644
--- a/js/ui/overview.js
+++ b/js/ui/overview.js
@@ -281,7 +281,8 @@ Overview.prototype = {
     },
 
     _onButtonPress: function(actor, event) {
-        if (this._scrollDirection == SwipeScrollDirection.NONE)
+        if (this._scrollDirection == SwipeScrollDirection.NONE
+            || event.get_button() != 1)
             return;
 
         let [stageX, stageY] = event.get_coords();