[gnome-shell] modalDialog: emit 'closed' signal when dialog is closed

[Ray Strode <halfline src gnome org>]

commit 677cdfd6c8f1dadece4a2c643bf1a59cd1e71de8
Author: Ray Strode <rstrode redhat com>
Date:   Wed Feb 20 13:15:51 2013 -0500

    modalDialog: emit 'closed' signal when dialog is closed
    
    Opening and closing a modal dialog is not instant. There
    is a transition animation involved.  When the dialog is
    finished opening, it currently emits the "opened" signal.
    
    When it's finished closing, however, it doesn't emit a
    "closed" signal.  This means, there's not a good way to
    know when the dialog finishes closing.
    
    This commit adds the "closed" signal.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=694296

 js/ui/modalDialog.js |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/modalDialog.js b/js/ui/modalDialog.js
index 7c99598..4649d6d 100644
--- a/js/ui/modalDialog.js
+++ b/js/ui/modalDialog.js
@@ -265,6 +265,7 @@ const ModalDialog = new Lang.Class({
                                function() {
                                    this.state = State.CLOSED;
                                    this._group.hide();
+                                   this.emit('closed');
                                })
                          });
     },