region: Use GtkRevealer instead of GdNotification

GtkRevealer combined with the "app-notification" class is enough
to represent the notification concept nowadays.

https://bugzilla.gnome.org/show_bug.cgi?id=775183

panels/region/cc-region-panel.c

@@ -47,8 +47,6 @@
 
 #include <act/act.h>
 
-#include <libgd/gd-notification.h>
-
 #define GNOME_DESKTOP_INPUT_SOURCES_DIR "org.gnome.desktop.input-sources"
 #define KEY_INPUT_SOURCES        "sources"
 
@@ -209,7 +207,7 @@ restart_now (CcRegionPanel *self)
 {
         CcRegionPanelPrivate *priv = self->priv;
 
-        gd_notification_dismiss (GD_NOTIFICATION (self->priv->notification));
+        gtk_revealer_set_reveal_child (GTK_REVEALER (self->priv->notification), FALSE);
 
         g_dbus_proxy_call (priv->session,
                            "Logout",
@@ -223,42 +221,14 @@ show_restart_notification (CcRegionPanel *self,
                            const gchar   *locale)
 {
 	CcRegionPanelPrivate *priv = self->priv;
-        GtkWidget *box;
-        GtkWidget *label;
-        GtkWidget *button;
         gchar *current_locale = NULL;
 
-        if (priv->notification)
-                return;
-
         if (locale) {
                 current_locale = g_strdup (setlocale (LC_MESSAGES, NULL));
                 setlocale (LC_MESSAGES, locale);
         }
 
-        priv->notification = gd_notification_new ();
+        gtk_revealer_set_reveal_child (GTK_REVEALER (priv->notification), TRUE);
-        g_object_add_weak_pointer (G_OBJECT (priv->notification),
-                                   (gpointer *)&priv->notification);
-        box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
-        gtk_widget_set_margin_start (box, 6);
-        gtk_widget_set_margin_end (box, 6);
-        gtk_widget_set_margin_top (box, 6);
-        gtk_widget_set_margin_bottom (box, 6);
-        label = gtk_label_new (_("Your session needs to be restarted for changes to take effect"));
-        gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
-        gtk_label_set_max_width_chars (GTK_LABEL (label), 30);
-        g_object_set (G_OBJECT (label), "xalign", 0, NULL);
-        button = gtk_button_new_with_label (_("Restart Now"));
-        gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
-        g_signal_connect_swapped (button, "clicked",
-                                  G_CALLBACK (restart_now), self);
-        gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
-        gtk_box_pack_start (GTK_BOX (box), button, FALSE, FALSE, 0);
-        gtk_widget_show_all (box);
-
-        gtk_container_add (GTK_CONTAINER (priv->notification), box);
-        gtk_overlay_add_overlay (GTK_OVERLAY (self->priv->overlay), priv->notification);
-        gtk_widget_show (priv->notification);
 
         if (locale) {
                 setlocale (LC_MESSAGES, current_locale);
@@ -266,6 +236,14 @@ show_restart_notification (CcRegionPanel *self,
         }
 }
 
+static void
+dismiss_notification (CcRegionPanel *self)
+{
+        CcRegionPanelPrivate *priv = self->priv;
+
+        gtk_revealer_set_reveal_child (GTK_REVEALER (priv->notification), FALSE);
+}
+
 typedef struct {
         CcRegionPanel *self;
         int category;
@@ -1818,6 +1796,7 @@ static void
 cc_region_panel_init (CcRegionPanel *self)
 {
 	CcRegionPanelPrivate *priv;
+        GtkWidget *button;
 	GError *error = NULL;
 
 	priv = self->priv = REGION_PANEL_PRIVATE (self);
@@ -1848,6 +1827,14 @@ cc_region_panel_init (CcRegionPanel *self)
                                   session_proxy_ready,
                                   self);
 
+        priv->notification = GTK_WIDGET (gtk_builder_get_object (priv->builder, "notification"));
+
+        button = GTK_WIDGET (gtk_builder_get_object (priv->builder, "restart-button"));
+        g_signal_connect_swapped (button, "clicked", G_CALLBACK (restart_now), self);
+
+        button = GTK_WIDGET (gtk_builder_get_object (priv->builder, "dismiss-button"));
+        g_signal_connect_swapped (button, "clicked", G_CALLBACK (dismiss_notification), self);
+
         setup_login_button (self);
         setup_language_section (self);
         setup_input_section (self);

panels/region/region.ui

@@ -3,6 +3,53 @@
   <!-- interface-requires gtk+ 3.0 -->
     <object class="GtkOverlay" id="overlay">
       <property name="visible">True</property>
+      <child type="overlay">
+        <object class="GtkRevealer" id="notification">
+          <property name="visible">True</property>
+          <property name="halign">GTK_ALIGN_CENTER</property>
+          <property name="valign">GTK_ALIGN_START</property>
+          <child>
+            <object class="GtkBox">
+              <property name="visible">True</property>
+              <property name="spacing">6</property>
+              <style>
+                <class name="app-notification"/>
+              </style>
+              <child>
+                <object class="GtkLabel">
+                  <property name="visible">True</property>
+                  <property name="wrap">True</property>
+                  <property name="max_width_chars">30</property>
+                  <property name="label" translatable="yes">Your session needs to be restarted for changes to take effect</property>
+                </object>
+              </child>
+              <child>
+                <object class="GtkButton" id="restart-button">
+                  <property name="visible">True</property>
+                  <property name="can_focus">True</property>
+                  <property name="valign">GTK_ALIGN_CENTER</property>
+                  <property name="label" translatable="yes">Restart Now</property>
+                </object>
+              </child>
+              <child>
+                <object class="GtkButton" id="dismiss-button">
+                  <property name="visible">True</property>
+                  <property name="valign">GTK_ALIGN_CENTER</property>
+                  <style>
+                    <class name="flat"/>
+                  </style>
+                  <child>
+                    <object class="GtkImage">
+                      <property name="visible">True</property>
+                      <property name="icon_name">window-close-symbolic</property>
+                    </object>
+                  </child>
+                </object>
+              </child>
+            </object>
+          </child>
+        </object>
+      </child>
     <child>
       <object class="GtkBox" id="vbox_region">
         <property name="visible">True</property>