[gnome-shell] chrome: don't show visibleInOverview chrome when the screensaver is active

[Dan Winship <danw src gnome org>]

commit 896d8e830caa668794d2a8b2d8c73104e2aa507f
Author: Dan Winship <danw gnome org>
Date:   Mon Jun 6 11:05:34 2011 -0400

    chrome: don't show visibleInOverview chrome when the screensaver is active
    
    visibleInOverview chrome was visible even when the screensaver was
    active. Although we may eventually need visibleInScreenSaver, that
    should be a separate flag.
    
    Fix this by tracking the screensaver active state, and hiding the chrome
    when the screensaver is active.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=654550

 js/ui/chrome.js |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/chrome.js b/js/ui/chrome.js
index f2a7d14..5dd21e5 100644
--- a/js/ui/chrome.js
+++ b/js/ui/chrome.js
@@ -8,6 +8,7 @@ const Signals = imports.signals;
 
 const Main = imports.ui.main;
 const Params = imports.misc.params;
+const ScreenSaver = imports.misc.screenSaver;
 
 // This manages the shell "chrome"; the UI that's visible in the
 // normal mode (ie, outside the Overview), that surrounds the main
@@ -49,6 +50,14 @@ Chrome.prototype = {
         Main.overview.connect('hidden',
                              Lang.bind(this, this._overviewHidden));
 
+        this._screenSaverProxy = new ScreenSaver.ScreenSaverProxy();
+        this._screenSaverProxy.connect('ActiveChanged', Lang.bind(this, this._onScreenSaverActiveChanged));
+        this._screenSaverProxy.GetActiveRemote(Lang.bind(this,
+            function(result, err) {
+                if (!err)
+                    this._onScreenSaverActiveChanged(this._screenSaverProxy, result);
+            }));
+
         this._relayout();
     },
 
@@ -212,6 +221,11 @@ Chrome.prototype = {
         this._queueUpdateRegions();
     },
 
+    _onScreenSaverActiveChanged: function(proxy, screenSaverActive) {
+        this.actor.visible = !screenSaverActive;
+        this._queueUpdateRegions();
+    },
+
     _findMonitorForRect: function(x, y, w, h) {
         // First look at what monitor the center of the rectangle is at
         let cx = x + w/2;