[totem] main: Fix lingering white line in fullscreen

[Bastien Nocera <hadess src gnome org>]

commit 7cef0067894aac27d73911890b43c2a0f4b526de
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Oct 14 17:02:08 2014 +0200

    main: Fix lingering white line in fullscreen
    
    Hide the revealer when the animation has finished, so as to avoid
    the 1-line gray-ish background when in fullscreen.
    
    This also fixes what looked like a shadow underneath the toolbar in
    windowed mode.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=723775

 data/totem.ui      |    2 ++
 src/totem-object.c |   20 +++++++++++++++++++-
 2 files changed, 21 insertions(+), 1 deletions(-)
---
diff --git a/data/totem.ui b/data/totem.ui
index d5a56ce..ed8197b 100644
--- a/data/totem.ui
+++ b/data/totem.ui
@@ -196,6 +196,8 @@
                           <object class="GtkRevealer" id="toolbar-revealer">
                             <property name="halign">fill</property>
                             <property name="valign">start</property>
+                            <property name="visible">False</property>
+                            <property name="no-show-all">True</property>
                           </object>
                         </child>
                       </object>
diff --git a/src/totem-object.c b/src/totem-object.c
index 5a582bf..c1d23c1 100644
--- a/src/totem-object.c
+++ b/src/totem-object.c
@@ -1562,6 +1562,9 @@ update_toolbar_visibility (TotemObject *totem,
                duration = animate ? 250 : 0;
        }
 
+       if (visible)
+               gtk_widget_show (totem->revealer);
+
        /* We don't change the transition type, because it causes
         * a queue resize, and it might short-circuit the animation */
        gtk_revealer_set_transition_duration (GTK_REVEALER (totem->revealer), duration);
@@ -3802,6 +3805,18 @@ grilo_widget_setup (TotemObject *totem)
 }
 
 static void
+child_revealed_changed_cb (GObject      *object,
+                          GParamSpec   *pspec,
+                          gpointer      user_data)
+{
+       gboolean val;
+
+       g_object_get (object, "child-revealed", &val, NULL);
+       if (!val)
+               gtk_widget_hide (GTK_WIDGET (object));
+}
+
+static void
 add_fullscreen_toolbar (TotemObject *totem)
 {
        GtkWidget *item;
@@ -3842,7 +3857,10 @@ add_fullscreen_toolbar (TotemObject *totem)
        totem->fullscreen_gear_button = item;
 
        gtk_container_add (GTK_CONTAINER (totem->revealer), totem->fullscreen_header);
-       gtk_widget_show_all (totem->revealer);
+       gtk_widget_show_all (totem->fullscreen_header);
+
+       g_signal_connect (totem->revealer, "notify::child-revealed",
+                         G_CALLBACK (child_revealed_changed_cb), NULL);
 }
 
 void