[gnome-shell] messageTray: Fix line wrapping

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

commit 7e70dfdf4c78a39678f91e77f4917f004a740a0f
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Tue Sep 20 15:52:42 2011 -0400

    messageTray: Fix line wrapping
    
    Clutter 1.4 had a bug where it would wrap when it wasn't supposed to, and we
    were unknowingly relying on it. Explicitly pass the available width/height
    to get a perfect allocation.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=659633

 js/ui/messageTray.js |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 9476d7a..ef0d593 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -792,11 +792,12 @@ Notification.prototype = {
     },
 
     _bannerBoxAllocate: function(actor, box, flags) {
-        let [titleMinW, titleNatW] = this._titleLabel.get_preferred_width(-1);
-        let [titleMinH, titleNatH] = this._titleLabel.get_preferred_height(-1);
-        let [bannerMinW, bannerNatW] = this._bannerLabel.get_preferred_width(-1);
         let availWidth = box.x2 - box.x1;
 
+        let [titleMinW, titleNatW] = this._titleLabel.get_preferred_width(-1);
+        let [titleMinH, titleNatH] = this._titleLabel.get_preferred_height(availWidth);
+        let [bannerMinW, bannerNatW] = this._bannerLabel.get_preferred_width(availWidth);
+
         let titleBox = new Clutter.ActorBox();
         let titleBoxW = Math.min(titleNatW, availWidth);
         if (this._titleDirection == St.TextDirection.RTL) {