Move custom css to a file compiled as a gresource

origin commit:
https://git.gnome.org/browse/evince/commit/shell?h=gnome-3-6&id=65fa4ff

shell/Makefile.am

@@ -153,6 +153,7 @@ atrild_LDADD=				\
 endif
 
 EXTRA_DIST = \
+	atril.css \
 	atril-ui.xml \
 	atril-toolbar.xml \
 	atril.gresource.xml \

shell/atril.css

@@ -0,0 +1,3 @@
+#ev-fullscreen-toolbar {
+
+}

shell/atril.gresource.xml

@@ -19,6 +19,7 @@
   <gresource prefix="/org/mate/atril/shell">
     <file alias="ui/atril.xml" compressed="true" preprocess="xml-stripblanks">atril-ui.xml</file>
     <file alias="ui/toolbar.xml" compressed="true" preprocess="xml-stripblanks">atril-toolbar.xml</file>
+    <file alias="ui/atril.css" compressed="true">atril.css</file>
   </gresource>
 </gresources>
 

shell/ev-window.c

@@ -4231,7 +4231,7 @@ ev_window_run_fullscreen (EvWindow *window)
 						   "/FullscreenToolbar");
 
 		gtk_widget_set_name (window->priv->fullscreen_toolbar,
-				     "atril-fullscreen-toolbar");
+				     "ev-fullscreen-toolbar");
 		gtk_toolbar_set_style (GTK_TOOLBAR (window->priv->fullscreen_toolbar),
 				       GTK_TOOLBAR_BOTH_HORIZ);
 		fullscreen_toolbar_setup_item_properties (window->priv->ui_manager);
@@ -7647,11 +7647,33 @@ handle_sync_view_cb (EvAtrilWindow        *object,
 }
 #endif /* ENABLE_DBUS */
 
+static gboolean
+_gtk_css_provider_load_from_resource (GtkCssProvider *provider,
+				      const char     *resource_path,
+				      GError        **error)
+{
+	GBytes  *data;
+	gboolean retval;
+
+	data = g_resources_lookup_data (resource_path, 0, error);
+	if (!data)
+		return FALSE;
+
+	retval = gtk_css_provider_load_from_data (provider,
+						  g_bytes_get_data (data, NULL),
+						  g_bytes_get_size (data),
+						  error);
+	g_bytes_unref (data);
+
+	return retval;
+}
+
 static void
 ev_window_init (EvWindow *ev_window)
 {
 	GtkActionGroup *action_group;
 	GtkAccelGroup *accel_group;
+	GtkCssProvider *css_provider;
 	GError *error = NULL;
 	GtkWidget *sidebar_widget;
 	GtkWidget *menuitem;
@@ -7758,6 +7780,16 @@ ev_window_init (EvWindow *ev_window)
 	                                     &error);
 	g_assert_no_error (error);
 
+	css_provider = gtk_css_provider_new ();
+	_gtk_css_provider_load_from_resource (css_provider,
+					      "/org/mate/atril/shell/ui/atril.css",
+					      &error);
+	g_assert_no_error (error);
+	gtk_style_context_add_provider_for_screen (gtk_widget_get_screen (GTK_WIDGET (ev_window)),
+					GTK_STYLE_PROVIDER (css_provider),
+					GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+	g_object_unref (css_provider);
+
 	ev_window->priv->recent_manager = gtk_recent_manager_get_default ();
 	ev_window->priv->recent_action_group = NULL;
 	ev_window->priv->recent_ui_id = 0;