[gnome-shell] AppSwitcher: Make sure we always get the correct icon position

[Adel Gadllah <agadllah src gnome org>]

commit 6461db9df6b628b0326db9ff016ae984660613da
Author: Adel Gadllah <adel gadllah gmail com>
Date:   Fri Mar 26 18:12:01 2010 +0100

    AppSwitcher: Make sure we always get the correct icon position
    
    Call stage.get_actor_at_pos before calling icon.get_transformed_position.

 js/ui/altTab.js |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/altTab.js b/js/ui/altTab.js
index fb31b9a..fefa3b4 100644
--- a/js/ui/altTab.js
+++ b/js/ui/altTab.js
@@ -100,6 +100,8 @@ AltTabPopup.prototype = {
         // those calculations
         if (this._thumbnails) {
             let icon = this._appIcons[this._currentApp].actor;
+            // Force a stage relayout to make sure we get the correct position
+            global.stage.get_actor_at_pos(Clutter.PickMode.REACTIVE, 0, 0);
             let [posX, posY] = icon.get_transformed_position();
             let thumbnailCenter = posX + icon.width / 2;
             let [childMinWidth, childNaturalWidth] = this._thumbnails.actor.get_preferred_width(-1);