[gnome-shell-extensions] window-list: Fix updating message tray anchor

[Florian Müllner <fmuellner src gnome org>]

commit 8688596e80b32212f39b1a2dac9c722336bd5daa
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Mar 7 19:48:47 2013 +0100

    window-list: Fix updating message tray anchor
    
    After recent overview changes, we may end up with the message tray
    showing partially in the overview when the window-list extension
    is enabled. Adjusting the anchor explicitly when entering/leaving
    the overview fixes the issue, requiring less code.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=695390

 extensions/window-list/extension.js |   36 ++++++++++++----------------------
 1 files changed, 13 insertions(+), 23 deletions(-)
---
diff --git a/extensions/window-list/extension.js b/extensions/window-list/extension.js
index bb44fa2..5343482 100644
--- a/extensions/window-list/extension.js
+++ b/extensions/window-list/extension.js
@@ -418,13 +418,16 @@ const WindowList = new Lang.Class({
             Main.overview.connect('showing', Lang.bind(this, function() {
                 this.actor.hide();
                 this._updateKeyboardAnchor();
+                this._updateMessageTrayAnchor();
             }));
 
         this._overviewHidingId =
             Main.overview.connect('hiding', Lang.bind(this, function() {
                 this.actor.show();
                 this._updateKeyboardAnchor();
+                this._updateMessageTrayAnchor();
             }));
+        this._updateMessageTrayAnchor();
 
         this._settings = Convenience.getSettings();
         this._groupingModeChangedId =
@@ -466,6 +469,13 @@ const WindowList = new Lang.Class({
         Main.keyboard.actor.anchor_y = anchorY;
     },
 
+    _updateMessageTrayAnchor: function() {
+        let anchorY = this.actor.visible ? this.actor.height : 0;
+
+        Main.messageTray.actor.anchor_y = anchorY;
+        Main.messageTray._notificationWidget.anchor_y = -anchorY;
+    },
+
     _onAppStateChanged: function(appSys, app) {
         if (this._groupingMode != GroupingMode.ALWAYS)
             return;
@@ -568,6 +578,9 @@ const WindowList = new Lang.Class({
         global.screen.disconnect(this._nWorkspacesChangedId);
         this._nWorkspacesChangedId = 0;
 
+        Main.messageTray.actor.anchor_y = 0;
+        Main.messageTray._notificationWidget.anchor_y = 0;
+
         Main.overview.disconnect(this._overviewShowingId);
         Main.overview.disconnect(this._overviewHidingId);
 
@@ -600,26 +613,6 @@ function enable() {
         return false;
     };
 
-    injections['_tween'] = MessageTray.MessageTray.prototype._tween;
-    MessageTray.MessageTray.prototype._tween = function(actor, statevar, value, params) {
-        if (!Main.overview.visible) {
-            let anchorY;
-            if (statevar == '_trayState')
-                anchorY = windowList.actor.height;
-            else if (statevar == '_notificationState')
-                anchorY = -windowList.actor.height;
-            else
-                anchorY = 0;
-            actor.anchor_y = anchorY;
-        }
-        injections['_tween'].call(Main.messageTray, actor, statevar, value, params);
-    };
-    injections['_onTrayHidden'] = MessageTray.MessageTray.prototype._onTrayHidden;
-    MessageTray.MessageTray.prototype._onTrayHidden = function() {
-        this.actor.anchor_y = 0;
-        injections['_onTrayHidden'].call(Main.messageTray);
-    };
-
     notificationParent = Main.messageTray._notificationWidget.get_parent();
     Main.messageTray._notificationWidget.hide();
     Main.messageTray._notificationWidget.reparent(windowList.actor);
@@ -642,7 +635,4 @@ function disable() {
 
     for (prop in injections)
         MessageTray.MessageTray.prototype[prop] = injections[prop];
-
-    Main.messageTray._notificationWidget.set_anchor_point(0, 0);
-    Main.messageTray.actor.set_anchor_point(0, 0);
 }