[gnome-documents] embed: workaround a GTK bug

[Cosimo Cecchi <cosimoc src gnome org>]

commit c374235939f6c7edc298b76f8ccbcad084646b93
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Wed Nov 28 18:49:26 2012 -0500

    embed: workaround a GTK bug
    
    Apparently the actions associated with a button also get activated if
    the widget is hidden.
    Work this around by also making it insensitive, until the bug is fixed
    in GTK.

 src/embed.js   |    1 +
 src/preview.js |    3 +++
 2 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/embed.js b/src/embed.js
index 5b734bc..572a4f0 100644
--- a/src/embed.js
+++ b/src/embed.js
@@ -450,6 +450,7 @@ const Embed = new Lang.Class({
     _onFullscreenChanged: function(controller, fullscreen) {
         Gtk.Settings.get_default().gtk_application_prefer_dark_theme = fullscreen;
         this._toolbar.widget.visible = !fullscreen;
+        this._toolbar.widget.sensitive = !fullscreen;
     },
 
     _onWindowModeChanged: function(object, newMode, oldMode) {
diff --git a/src/preview.js b/src/preview.js
index 8030eac..9b7f1bd 100644
--- a/src/preview.js
+++ b/src/preview.js
@@ -464,11 +464,13 @@ const PreviewFullscreenToolbar = new Lang.Class({
         this.parent(previewView);
 
         this.actor.visible = false;
+        this.widget.sensitive = false;
         this.actor.y = -(this.widget.get_preferred_height()[1]);
     },
 
     show: function() {
         this.actor.show();
+        this.widget.sensitive = true;
         Tweener.addTween(this.actor,
                          { y: 0,
                            time: 0.20,
@@ -482,6 +484,7 @@ const PreviewFullscreenToolbar = new Lang.Class({
                            transition: 'easeOutQuad',
                            onComplete: function() {
                                this.actor.hide();
+                               this.widget.sensitive = false;
                            },
                            onCompleteScope: this });
     }