[gnome-shell-extensions] alternate-tab: respect aspect ratio for window thumbnails

[Giovanni Campagna <gcampagna src gnome org>]

commit a78a16b4a7a255c7e4304c97b08160d451831e29
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Wed Aug 22 15:35:33 2012 +0200

    alternate-tab: respect aspect ratio for window thumbnails
    
    It is weird if 16:9 thumbnails get turned into squares. Instead,
    center them.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=656217

 extensions/alternate-tab/extension.js |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/extensions/alternate-tab/extension.js b/extensions/alternate-tab/extension.js
index febd040..c37a594 100644
--- a/extensions/alternate-tab/extension.js
+++ b/extensions/alternate-tab/extension.js
@@ -341,6 +341,8 @@ const WindowIcon = new Lang.Class({
             this.clone = new Clutter.Clone({ source: windowTexture,
 					     width: width * scale,
 					     height: height * scale,
+					     x_align: Clutter.ActorAlign.CENTER,
+					     y_align: Clutter.ActorAlign.CENTER,
 					     // usual hack for the usual bug in ClutterBinLayout...
 				             x_expand: true,
 					     y_expand: true });
@@ -353,6 +355,8 @@ const WindowIcon = new Lang.Class({
             this.clone = new Clutter.Clone({ source: windowTexture,
 					     width: width * scale,
 					     height: height * scale,
+					     x_align: Clutter.ActorAlign.CENTER,
+					     y_align: Clutter.ActorAlign.CENTER,
 					     // usual hack for the usual bug in ClutterBinLayout...
 				             x_expand: true,
 					     y_expand: true });
@@ -381,7 +385,7 @@ const WindowList = new Lang.Class({
     Extends: AltTab.SwitcherList,
 
     _init : function(windows, settings) {
-        this.parent(true);
+        this.parent(false);
 
         this.windows = windows;
         this.icons = [];