[gnome-shell] message-tray: Add :overview pseudo class when in overview

[Jasper St. Pierre <jstpierre src gnome org>]

commit a8e6bfcb3dced7aac5efb204a6167455cf9f5e79
Author: Florian MÃllner <fmuellner gnome org>
Date:   Tue Jul 31 16:10:24 2012 +0200

    message-tray: Add :overview pseudo class when in overview
    
    The designers would like the message-tray to use different styles
    depending on whether it is shown in the overview or not, so use
    an :overview pseudo class as the top bar.

 js/ui/messageTray.js |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index cf7afe0..21d09bf 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -1550,6 +1550,7 @@ const MessageTray = new Lang.Class({
         Main.overview.connect('showing', Lang.bind(this,
             function() {
                 this._overviewVisible = true;
+                this.actor.add_style_pseudo_class('overview');
                 if (this._locked) {
                     this._unsetClickedSummaryItem();
                     this._unlock();
@@ -1560,6 +1561,7 @@ const MessageTray = new Lang.Class({
         Main.overview.connect('hiding', Lang.bind(this,
             function() {
                 this._overviewVisible = false;
+                this.actor.remove_style_pseudo_class('overview');
                 if (this._locked) {
                     this._unsetClickedSummaryItem();
                     this._unlock();