mate-panel-applet: Boilerplate

3 files changed, 450 insertions, 353 deletions

diff --git a/libmate-panel-applet/mate-panel-applet-gsettings.c b/libmate-panel-applet/mate-panel-applet-gsettings.c
index 9387053d..dbe0bf7a 100644
--- a/libmate-panel-applet/mate-panel-applet-gsettings.c
+++ b/libmate-panel-applet/mate-panel-applet-gsettings.c
@@ -34,7 +34,7 @@ mate_panel_applet_settings_new (MatePanelApplet *applet, gchar *schema)
     GSettings *settings = NULL;
     gchar *path;
 
-    g_return_val_if_fail (PANEL_IS_APPLET (applet), NULL);
+    g_return_val_if_fail (MATE_PANEL_IS_APPLET (applet), NULL);
 
     path = mate_panel_applet_get_preferences_path (applet);
 
diff --git a/libmate-panel-applet/mate-panel-applet.c b/libmate-panel-applet/mate-panel-applet.c
index ce482c6e..3d6a4ac1 100644
--- a/libmate-panel-applet/mate-panel-applet.c
+++ b/libmate-panel-applet/mate-panel-applet.c
@@ -51,7 +51,7 @@
 #include "mate-panel-applet-marshal.h"
 #include "mate-panel-applet-enums.h"
 
-struct _MatePanelAppletPrivate {
+typedef struct {
 	GtkWidget         *plug;
 	GDBusConnection   *connection;
 
@@ -82,7 +82,7 @@ struct _MatePanelAppletPrivate {
 
 	gboolean           locked;
 	gboolean           locked_down;
-};
+} MatePanelAppletPrivate;
 
 enum {
 	CHANGE_ORIENT,
@@ -158,28 +158,33 @@ G_DEFINE_TYPE_WITH_PRIVATE (MatePanelApplet, mate_panel_applet, GTK_TYPE_EVENT_B
 char *
 mate_panel_applet_get_preferences_path (MatePanelApplet *applet)
 {
-	g_return_val_if_fail (PANEL_IS_APPLET (applet), NULL);
+	MatePanelAppletPrivate *priv;
+
+	g_return_val_if_fail (MATE_PANEL_IS_APPLET (applet), NULL);
 
-	if (!applet->priv->prefs_path)
+	priv = mate_panel_applet_get_instance_private (applet);
+	if (!priv->prefs_path)
 		return NULL;
 
-	return g_strdup (applet->priv->prefs_path);
+	return g_strdup (priv->prefs_path);
 }
 
 static void
 mate_panel_applet_set_preferences_path (MatePanelApplet *applet,
 				  const char  *prefs_path)
 {
-	if (applet->priv->prefs_path == prefs_path)
-		return;
+	MatePanelAppletPrivate *priv;
+
+	priv = mate_panel_applet_get_instance_private (applet);
 
-	if (g_strcmp0 (applet->priv->prefs_path, prefs_path) == 0)
+	if (priv->prefs_path == prefs_path)
 		return;
 
-	if (prefs_path) {
-		applet->priv->prefs_path = g_strdup (prefs_path);
+	if (g_strcmp0 (priv->prefs_path, prefs_path) == 0)
+		return;
 
-	}
+	if (prefs_path)
+		priv->prefs_path = g_strdup (prefs_path);
 
 	g_object_notify (G_OBJECT (applet), "prefs-path");
 }
@@ -187,25 +192,33 @@ mate_panel_applet_set_preferences_path (MatePanelApplet *applet,
 MatePanelAppletFlags
 mate_panel_applet_get_flags (MatePanelApplet *applet)
 {
-	g_return_val_if_fail (PANEL_IS_APPLET (applet), MATE_PANEL_APPLET_FLAGS_NONE);
+	MatePanelAppletPrivate *priv;
+
+	g_return_val_if_fail (MATE_PANEL_IS_APPLET (applet), MATE_PANEL_APPLET_FLAGS_NONE);
+
+	priv = mate_panel_applet_get_instance_private (applet);
 
-	return applet->priv->flags;
+	return priv->flags;
 }
 
 void
 mate_panel_applet_set_flags (MatePanelApplet      *applet,
 			MatePanelAppletFlags  flags)
 {
-	g_return_if_fail (PANEL_IS_APPLET (applet));
+	MatePanelAppletPrivate *priv;
 
-	if (applet->priv->flags == flags)
+	g_return_if_fail (MATE_PANEL_IS_APPLET (applet));
+
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	if (priv->flags == flags)
 		return;
 
-	applet->priv->flags = flags;
+	priv->flags = flags;
 
 	g_object_notify (G_OBJECT (applet), "flags");
 
-	if (applet->priv->connection) {
+	if (priv->connection) {
 		GVariantBuilder  builder;
 		GVariantBuilder  invalidated_builder;
 		GError          *error = NULL;
@@ -214,18 +227,18 @@ mate_panel_applet_set_flags (MatePanelApplet      *applet,
 		g_variant_builder_init (&invalidated_builder, G_VARIANT_TYPE ("as"));
 
 		g_variant_builder_add (&builder, "{sv}", "Flags",
-				       g_variant_new_uint32 (applet->priv->flags));
-
-		g_dbus_connection_emit_signal (applet->priv->connection,
-					       NULL,
-					       applet->priv->object_path,
-					       "org.freedesktop.DBus.Properties",
-					       "PropertiesChanged",
-					       g_variant_new ("(sa{sv}as)",
-							      MATE_PANEL_APPLET_INTERFACE,
-							      &builder,
-							      &invalidated_builder),
-					       &error);
+				       g_variant_new_uint32 (priv->flags));
+
+		g_dbus_connection_emit_signal (priv->connection,
+		                               NULL,
+		                               priv->object_path,
+		                               "org.freedesktop.DBus.Properties",
+		                               "PropertiesChanged",
+		                               g_variant_new ("(sa{sv}as)",
+		                                              MATE_PANEL_APPLET_INTERFACE,
+		                                              &builder,
+		                                              &invalidated_builder),
+		                               &error);
 		if (error) {
 			g_printerr ("Failed to send signal PropertiesChanged::Flags: %s\n",
 				    error->message);
@@ -240,13 +253,16 @@ static void
 mate_panel_applet_size_hints_ensure (MatePanelApplet *applet,
 				int          new_size)
 {
-	if (applet->priv->size_hints && applet->priv->size_hints_len < new_size) {
-		g_free (applet->priv->size_hints);
-		applet->priv->size_hints = g_new (gint, new_size);
-	} else if (!applet->priv->size_hints) {
-		applet->priv->size_hints = g_new (gint, new_size);
+	MatePanelAppletPrivate *priv;
+
+	priv = mate_panel_applet_get_instance_private (applet);
+	if (priv->size_hints && priv->size_hints_len < new_size) {
+		g_free (priv->size_hints);
+		priv->size_hints = g_new (gint, new_size);
+	} else if (!priv->size_hints) {
+		priv->size_hints = g_new (gint, new_size);
 	}
-	applet->priv->size_hints_len = new_size;
+	priv->size_hints_len = new_size;
 }
 
 static gboolean
@@ -255,16 +271,19 @@ mate_panel_applet_size_hints_changed (MatePanelApplet *applet,
 				 int          n_elements,
 				 int          base_size)
 {
+	MatePanelAppletPrivate *priv;
 	gint i;
 
-	if (!applet->priv->size_hints)
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	if (!priv->size_hints)
 		return TRUE;
 
-	if (applet->priv->size_hints_len != n_elements)
+	if (priv->size_hints_len != n_elements)
 		return TRUE;
 
 	for (i = 0; i < n_elements; i++) {
-		if (size_hints[i] + base_size != applet->priv->size_hints[i])
+		if (size_hints[i] + base_size != priv->size_hints[i])
 			return TRUE;
 	}
 
@@ -284,19 +303,22 @@ mate_panel_applet_set_size_hints (MatePanelApplet *applet,
 			     int          n_elements,
 			     int          base_size)
 {
+	MatePanelAppletPrivate *priv;
 	gint i;
 
 	/* Make sure property has really changed to avoid bus traffic */
 	if (!mate_panel_applet_size_hints_changed (applet, size_hints, n_elements, base_size))
 		return;
 
+	priv = mate_panel_applet_get_instance_private (applet);
+
 	mate_panel_applet_size_hints_ensure (applet, n_elements);
 	for (i = 0; i < n_elements; i++)
-		applet->priv->size_hints[i] = size_hints[i] + base_size;
+		priv->size_hints[i] = size_hints[i] + base_size;
 
 	g_object_notify (G_OBJECT (applet), "size-hints");
 
-	if (applet->priv->connection) {
+	if (priv->connection) {
 		GVariantBuilder  builder;
 		GVariantBuilder  invalidated_builder;
 		GVariant       **children;
@@ -305,24 +327,24 @@ mate_panel_applet_set_size_hints (MatePanelApplet *applet,
 		g_variant_builder_init (&builder, G_VARIANT_TYPE_ARRAY);
 		g_variant_builder_init (&invalidated_builder, G_VARIANT_TYPE ("as"));
 
-		children = g_new (GVariant *, applet->priv->size_hints_len);
+		children = g_new (GVariant *, priv->size_hints_len);
 		for (i = 0; i < n_elements; i++)
-			children[i] = g_variant_new_int32 (applet->priv->size_hints[i]);
+			children[i] = g_variant_new_int32 (priv->size_hints[i]);
 		g_variant_builder_add (&builder, "{sv}", "SizeHints",
-				       g_variant_new_array (G_VARIANT_TYPE_INT32,
-							    children, applet->priv->size_hints_len));
+		                       g_variant_new_array (G_VARIANT_TYPE_INT32,
+		                       children, priv->size_hints_len));
 		g_free (children);
 
-		g_dbus_connection_emit_signal (applet->priv->connection,
-					       NULL,
-					       applet->priv->object_path,
-					       "org.freedesktop.DBus.Properties",
-					       "PropertiesChanged",
-					       g_variant_new ("(sa{sv}as)",
-							      MATE_PANEL_APPLET_INTERFACE,
-							      &builder,
-							      &invalidated_builder),
-					       &error);
+		g_dbus_connection_emit_signal (priv->connection,
+		                               NULL,
+		                               priv->object_path,
+		                               "org.freedesktop.DBus.Properties",
+		                               "PropertiesChanged",
+		                               g_variant_new ("(sa{sv}as)",
+		                                              MATE_PANEL_APPLET_INTERFACE,
+		                                              &builder,
+		                                              &invalidated_builder),
+		                               &error);
 		if (error) {
 			g_printerr ("Failed to send signal PropertiesChanged::SizeHints: %s\n",
 				    error->message);
@@ -336,9 +358,13 @@ mate_panel_applet_set_size_hints (MatePanelApplet *applet,
 guint
 mate_panel_applet_get_size (MatePanelApplet *applet)
 {
-	g_return_val_if_fail (PANEL_IS_APPLET (applet), 0);
+	MatePanelAppletPrivate *priv;
+
+	g_return_val_if_fail (MATE_PANEL_IS_APPLET (applet), 0);
+
+	priv = mate_panel_applet_get_instance_private (applet);
 
-	return applet->priv->size;
+	return priv->size;
 }
 
 /* Applets cannot set their size, so API is not public. */
@@ -346,12 +372,16 @@ static void
 mate_panel_applet_set_size (MatePanelApplet *applet,
 		       guint        size)
 {
-	g_return_if_fail (PANEL_IS_APPLET (applet));
+	MatePanelAppletPrivate *priv;
 
-	if (applet->priv->size == size)
+	g_return_if_fail (MATE_PANEL_IS_APPLET (applet));
+
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	if (priv->size == size)
 		return;
 
-	applet->priv->size = size;
+	priv->size = size;
 	g_signal_emit (G_OBJECT (applet),
 		       mate_panel_applet_signals [CHANGE_SIZE],
 		       0, size);
@@ -362,9 +392,13 @@ mate_panel_applet_set_size (MatePanelApplet *applet,
 MatePanelAppletOrient
 mate_panel_applet_get_orient (MatePanelApplet *applet)
 {
-	g_return_val_if_fail (PANEL_IS_APPLET (applet), 0);
+	MatePanelAppletPrivate *priv;
+
+	g_return_val_if_fail (MATE_PANEL_IS_APPLET (applet), 0);
+
+	priv = mate_panel_applet_get_instance_private (applet);
 
-	return applet->priv->orient;
+	return priv->orient;
 }
 
 /* Applets cannot set their orientation, so API is not public. */
@@ -372,12 +406,16 @@ static void
 mate_panel_applet_set_orient (MatePanelApplet      *applet,
 			 MatePanelAppletOrient orient)
 {
-	g_return_if_fail (PANEL_IS_APPLET (applet));
+	MatePanelAppletPrivate *priv;
 
-	if (applet->priv->orient == orient)
+	g_return_if_fail (MATE_PANEL_IS_APPLET (applet));
+
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	if (priv->orient == orient)
 		return;
 
-	applet->priv->orient = orient;
+	priv->orient = orient;
 	g_signal_emit (G_OBJECT (applet),
 		       mate_panel_applet_signals [CHANGE_ORIENT],
 		       0, orient);
@@ -389,14 +427,17 @@ static void
 mate_panel_applet_set_locked (MatePanelApplet *applet,
 			 gboolean     locked)
 {
+	MatePanelAppletPrivate *priv;
 	GtkAction *action;
 
-	g_return_if_fail (PANEL_IS_APPLET (applet));
+	g_return_if_fail (MATE_PANEL_IS_APPLET (applet));
 
-	if (applet->priv->locked == locked)
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	if (priv->locked == locked)
 		return;
 
-	applet->priv->locked = locked;
+	priv->locked = locked;
 
 	action = mate_panel_applet_menu_get_action (applet, "Lock");
 	g_signal_handlers_block_by_func (action,
@@ -411,15 +452,15 @@ mate_panel_applet_set_locked (MatePanelApplet *applet,
 
 	g_object_notify (G_OBJECT (applet), "locked");
 
-	if (applet->priv->connection) {
+	if (priv->connection) {
 		GError *error = NULL;
 
-		g_dbus_connection_emit_signal (applet->priv->connection,
-					       NULL,
-					       applet->priv->object_path,
-					       MATE_PANEL_APPLET_INTERFACE,
-					       locked ? "Lock" : "Unlock",
-					       NULL, &error);
+		g_dbus_connection_emit_signal (priv->connection,
+		                               NULL,
+		                               priv->object_path,
+		                               MATE_PANEL_APPLET_INTERFACE,
+		                               locked ? "Lock" : "Unlock",
+		                               NULL, &error);
 		if (error) {
 			g_printerr ("Failed to send signal %s: %s\n",
 				    locked ? "Lock" : "Unlock",
@@ -432,9 +473,13 @@ mate_panel_applet_set_locked (MatePanelApplet *applet,
 gboolean
 mate_panel_applet_get_locked_down (MatePanelApplet *applet)
 {
-	g_return_val_if_fail (PANEL_IS_APPLET (applet), FALSE);
+	MatePanelAppletPrivate *priv;
+
+	g_return_val_if_fail (MATE_PANEL_IS_APPLET (applet), FALSE);
 
-	return applet->priv->locked_down;
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	return priv->locked_down;
 }
 
 /* Applets cannot set the lockdown state, so API is not public. */
@@ -442,12 +487,16 @@ static void
 mate_panel_applet_set_locked_down (MatePanelApplet *applet,
 			      gboolean     locked_down)
 {
-	g_return_if_fail (PANEL_IS_APPLET (applet));
+	MatePanelAppletPrivate *priv;
+
+	g_return_if_fail (MATE_PANEL_IS_APPLET (applet));
 
-	if (applet->priv->locked_down == locked_down)
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	if (priv->locked_down == locked_down)
 		return;
 
-	applet->priv->locked_down = locked_down;
+	priv->locked_down = locked_down;
 	mate_panel_applet_menu_update_actions (applet);
 
 	g_object_notify (G_OBJECT (applet), "locked-down");
@@ -552,6 +601,7 @@ mate_panel_applet_request_focus (MatePanelApplet	 *applet,
 			    guint32	  timestamp)
 {
 #ifdef HAVE_X11
+	MatePanelAppletPrivate *priv;
 	GdkScreen  *screen;
 	GdkWindow  *root;
 	GdkDisplay *display;
@@ -563,9 +613,10 @@ mate_panel_applet_request_focus (MatePanelApplet	 *applet,
 	if (!GDK_IS_X11_DISPLAY (gdk_display_get_default ()))
 		return;
 
-	g_return_if_fail (PANEL_IS_APPLET (applet));
+	g_return_if_fail (MATE_PANEL_IS_APPLET (applet));
 
-	screen	= gtk_window_get_screen (GTK_WINDOW (applet->priv->plug));
+	priv    = mate_panel_applet_get_instance_private (applet);
+	screen  = gtk_window_get_screen (GTK_WINDOW (priv->plug));
 	root	= gdk_screen_get_root_window (screen);
 	display = gdk_screen_get_display (screen);
 
@@ -601,42 +652,50 @@ static GtkAction *
 mate_panel_applet_menu_get_action (MatePanelApplet *applet,
 			      const gchar *action)
 {
-	return gtk_action_group_get_action (applet->priv->panel_action_group, action);
+	MatePanelAppletPrivate *priv;
+
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	return gtk_action_group_get_action (priv->panel_action_group, action);
 }
 
 static void
 mate_panel_applet_menu_update_actions (MatePanelApplet *applet)
 {
-	gboolean locked = applet->priv->locked;
-	gboolean locked_down = applet->priv->locked_down;
+	MatePanelAppletPrivate *priv;
 
+	priv = mate_panel_applet_get_instance_private (applet);
 	g_object_set (mate_panel_applet_menu_get_action (applet, "Lock"),
-		      "visible", !locked_down, NULL);
+	              "visible", !priv->locked_down,
+	              NULL);
 	g_object_set (mate_panel_applet_menu_get_action (applet, "Move"),
-		      "sensitive", !locked,
-		      "visible", !locked_down,
-		      NULL);
+	              "sensitive", !priv->locked,
+	              "visible", !priv->locked_down,
+	              NULL);
 	g_object_set (mate_panel_applet_menu_get_action (applet, "Remove"),
-		      "sensitive", !locked,
-		      "visible", !locked_down,
-		      NULL);
+	              "sensitive", !priv->locked,
+	              "visible", !priv->locked_down,
+	              NULL);
 }
 
 static void
 mate_panel_applet_menu_cmd_remove (GtkAction   *action,
 			      MatePanelApplet *applet)
 {
+	MatePanelAppletPrivate *priv;
 	GError *error = NULL;
 
-	if (!applet->priv->connection)
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	if (!priv->connection)
 		return;
 
-	g_dbus_connection_emit_signal (applet->priv->connection,
-				       NULL,
-				       applet->priv->object_path,
-				       MATE_PANEL_APPLET_INTERFACE,
-				       "RemoveFromPanel",
-				       NULL, &error);
+	g_dbus_connection_emit_signal (priv->connection,
+	                               NULL,
+	                               priv->object_path,
+	                               MATE_PANEL_APPLET_INTERFACE,
+	                               "RemoveFromPanel",
+	                               NULL, &error);
 	if (error) {
 		g_printerr ("Failed to send signal RemoveFromPanel: %s\n",
 			    error->message);
@@ -648,14 +707,17 @@ static void
 mate_panel_applet_menu_cmd_move (GtkAction   *action,
 			    MatePanelApplet *applet)
 {
-	GError *error = NULL;
+	MatePanelAppletPrivate *priv;
+	GError                 *error = NULL;
+
+	priv = mate_panel_applet_get_instance_private (applet);
 
-	if (!applet->priv->connection)
+	if (!priv->connection)
 		return;
 
-	g_dbus_connection_emit_signal (applet->priv->connection,
+	g_dbus_connection_emit_signal (priv->connection,
 				       NULL,
-				       applet->priv->object_path,
+				       priv->object_path,
 				       MATE_PANEL_APPLET_INTERFACE,
 				       "Move",
 				       NULL, &error);
@@ -681,25 +743,28 @@ mate_panel_applet_setup_menu (MatePanelApplet    *applet,
 			 const gchar    *xml,
 			 GtkActionGroup *applet_action_group)
 {
+	MatePanelAppletPrivate *priv;
 	gchar  *new_xml;
 	GError *error = NULL;
 
-	g_return_if_fail (PANEL_IS_APPLET (applet));
+	g_return_if_fail (MATE_PANEL_IS_APPLET (applet));
 	g_return_if_fail (xml != NULL);
 
-	if (applet->priv->applet_action_group)
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	if (priv->applet_action_group)
 		return;
 
-	applet->priv->applet_action_group = g_object_ref (applet_action_group);
-	gtk_ui_manager_insert_action_group (applet->priv->ui_manager,
+	priv->applet_action_group = g_object_ref (applet_action_group);
+	gtk_ui_manager_insert_action_group (priv->ui_manager,
 					    applet_action_group, 0);
 
 	new_xml = g_strdup_printf ("<ui><popup name=\"MatePanelAppletPopup\" action=\"AppletItems\">"
 				   "<placeholder name=\"AppletItems\">%s\n</placeholder>\n"
 				   "</popup></ui>\n", xml);
-	gtk_ui_manager_add_ui_from_string (applet->priv->ui_manager, new_xml, -1, &error);
+	gtk_ui_manager_add_ui_from_string (priv->ui_manager, new_xml, -1, &error);
 	g_free (new_xml);
-	gtk_ui_manager_ensure_update (applet->priv->ui_manager);
+	gtk_ui_manager_ensure_update (priv->ui_manager);
 	if (error) {
 		g_warning ("Error merging menus: %s\n", error->message);
 		g_error_free (error);
@@ -767,46 +832,50 @@ mate_panel_applet_setup_menu_from_resource (MatePanelApplet    *applet,
 static void
 mate_panel_applet_finalize (GObject *object)
 {
-	MatePanelApplet *applet = MATE_PANEL_APPLET (object);
+	MatePanelApplet        *applet;
+	MatePanelAppletPrivate *priv;
 
-	if (applet->priv->connection) {
-		if (applet->priv->object_id)
-			g_dbus_connection_unregister_object (applet->priv->connection,
-							     applet->priv->object_id);
-		applet->priv->object_id = 0;
-		g_object_unref (applet->priv->connection);
-		applet->priv->connection = NULL;
+	applet = MATE_PANEL_APPLET (object);
+	priv   = mate_panel_applet_get_instance_private (applet);
+
+	if (priv->connection) {
+		if (priv->object_id)
+			g_dbus_connection_unregister_object (priv->connection,
+							     priv->object_id);
+		priv->object_id = 0;
+		g_object_unref (priv->connection);
+		priv->connection = NULL;
 	}
 
-	if (applet->priv->object_path) {
-		g_free (applet->priv->object_path);
-		applet->priv->object_path = NULL;
+	if (priv->object_path) {
+		g_free (priv->object_path);
+		priv->object_path = NULL;
 	}
 
 	mate_panel_applet_set_preferences_path (applet, NULL);
 
-	if (applet->priv->applet_action_group) {
-		g_object_unref (applet->priv->applet_action_group);
-		applet->priv->applet_action_group = NULL;
+	if (priv->applet_action_group) {
+		g_object_unref (priv->applet_action_group);
+		priv->applet_action_group = NULL;
 	}
 
-	if (applet->priv->panel_action_group) {
-		g_object_unref (applet->priv->panel_action_group);
-		applet->priv->panel_action_group = NULL;
+	if (priv->panel_action_group) {
+		g_object_unref (priv->panel_action_group);
+		priv->panel_action_group = NULL;
 	}
 
-	if (applet->priv->ui_manager) {
-		g_object_unref (applet->priv->ui_manager);
-		applet->priv->ui_manager = NULL;
+	if (priv->ui_manager) {
+		g_object_unref (priv->ui_manager);
+		priv->ui_manager = NULL;
 	}
 
-	g_free (applet->priv->size_hints);
-	g_free (applet->priv->prefs_path);
-	g_free (applet->priv->background);
-	g_free (applet->priv->id);
+	g_free (priv->size_hints);
+	g_free (priv->prefs_path);
+	g_free (priv->background);
+	g_free (priv->id);
 
 	/* closure is owned by the factory */
-	applet->priv->closure = NULL;
+	priv->closure = NULL;
 
 	G_OBJECT_CLASS (mate_panel_applet_parent_class)->finalize (object);
 }
@@ -839,10 +908,12 @@ static void
 mate_panel_applet_menu_popup (MatePanelApplet *applet,
                               GdkEvent    *event)
 {
+	MatePanelAppletPrivate *priv;
 	GtkWidget *menu;
 
-	menu = gtk_ui_manager_get_widget (applet->priv->ui_manager,
-					  "/MatePanelAppletPopup");
+	priv = mate_panel_applet_get_instance_private (applet);
+	menu = gtk_ui_manager_get_widget (priv->ui_manager,
+	                                  "/MatePanelAppletPopup");
 
 /* Set up theme and transparency support */
 	GtkWidget *toplevel = gtk_widget_get_toplevel (menu);
@@ -857,7 +928,7 @@ mate_panel_applet_menu_popup (MatePanelApplet *applet,
 	gtk_style_context_add_class(context,"mate-panel-menu-bar");
 	GdkGravity widget_anchor = GDK_GRAVITY_NORTH_WEST;
 	GdkGravity menu_anchor = GDK_GRAVITY_NORTH_WEST;
-	switch (applet->priv->orient) {
+	switch (priv->orient) {
 	case MATE_PANEL_APPLET_ORIENT_UP:
 		menu_anchor = GDK_GRAVITY_SOUTH_WEST;
 		break;
@@ -888,7 +959,7 @@ mate_panel_applet_can_focus (GtkWidget *widget)
 	if (gtk_widget_get_has_tooltip (widget))
 		return TRUE;
 
-	if (!PANEL_IS_APPLET (widget))
+	if (!MATE_PANEL_IS_APPLET (widget))
 		return FALSE;
 
 	return !container_has_focusable_child (GTK_CONTAINER (widget));
@@ -900,16 +971,19 @@ mate_panel_applet_button_event (MatePanelApplet      *applet,
 			   GdkEventButton *event)
 {
 #ifdef HAVE_X11
-	GtkWidget *widget;
-	GdkWindow *window;
-	GdkWindow *socket_window;
-	XEvent     xevent;
-	GdkDisplay *display;
+	MatePanelAppletPrivate *priv;
+	GtkWidget              *widget;
+	GdkWindow              *window;
+	GdkWindow              *socket_window;
+	XEvent                  xevent;
+	GdkDisplay             *display;
 
-	if (!applet->priv->out_of_process)
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	if (!priv->out_of_process)
 		return FALSE;
 
-	widget = applet->priv->plug;
+	widget = priv->plug;
 
 	if (!gtk_widget_is_toplevel (widget))
 		return FALSE;
@@ -1026,8 +1100,10 @@ mate_panel_applet_get_preferred_width (GtkWidget *widget,
 										natural_width);
 
 #if !GTK_CHECK_VERSION (3, 23, 0)
-	MatePanelApplet *applet = MATE_PANEL_APPLET (widget);
-	if (applet->priv->out_of_process) {
+	MatePanelAppletPrivate *priv;
+
+	priv = mate_panel_applet_get_instance_private (MATE_PANEL_APPLET (widget));
+	if (priv->out_of_process) {
 		/* Out-of-process applets end up scaled up doubly with GTK 3.22.
 		 * For these builds divide by the scale factor to ensure
 		 * they are back at their own intended size.
@@ -1050,8 +1126,10 @@ mate_panel_applet_get_preferred_height (GtkWidget *widget,
 										natural_height);
 
 #if !GTK_CHECK_VERSION (3, 23, 0)
-	MatePanelApplet *applet = MATE_PANEL_APPLET (widget);
-	if (applet->priv->out_of_process) {
+	MatePanelAppletPrivate *priv;
+
+	priv = mate_panel_applet_get_instance_private (MATE_PANEL_APPLET (widget));
+	if (priv->out_of_process) {
 		gint scale;
 		/* Out-of-process applets end up scaled up doubly with GTK 3.22.
 		 * For these builds divide by the scale factor to ensure
@@ -1082,13 +1160,13 @@ static void
 mate_panel_applet_size_allocate (GtkWidget     *widget,
 			    GtkAllocation *allocation)
 {
+	MatePanelAppletPrivate *priv;
 	GtkAllocation  child_allocation;
 	MatePanelApplet   *applet;
 
 	if (!mate_panel_applet_can_focus (widget)) {
 		GTK_WIDGET_CLASS (mate_panel_applet_parent_class)->size_allocate (widget, allocation);
 	} else {
-
 		int border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
 
 		gtk_widget_set_allocation (widget, allocation);
@@ -1113,12 +1191,12 @@ mate_panel_applet_size_allocate (GtkWidget     *widget,
 	}
 
 	applet = MATE_PANEL_APPLET (widget);
+	priv   = mate_panel_applet_get_instance_private (applet);
 
-	if (applet->priv->previous_height != allocation->height ||
-	    applet->priv->previous_width  != allocation->width) {
-		applet->priv->previous_height = allocation->height;
-		applet->priv->previous_width = allocation->width;
-
+	if ((priv->previous_height != allocation->height) ||
+	    (priv->previous_width  != allocation->width)) {
+		priv->previous_height = allocation->height;
+		priv->previous_width  = allocation->width;
 		mate_panel_applet_handle_background (applet);
 	}
 }
@@ -1161,19 +1239,19 @@ static gboolean
 mate_panel_applet_focus (GtkWidget        *widget,
 		    GtkDirectionType  dir)
 {
+	MatePanelAppletPrivate *priv;
 	gboolean ret;
 	GtkWidget *previous_focus_child;
-	MatePanelApplet *applet;
 
-	g_return_val_if_fail (PANEL_IS_APPLET (widget), FALSE);
+	g_return_val_if_fail (MATE_PANEL_IS_APPLET (widget), FALSE);
 
-	applet = MATE_PANEL_APPLET (widget);
-	if (applet->priv->moving_focus_out) {
+	priv = mate_panel_applet_get_instance_private (MATE_PANEL_APPLET (widget));
+	if (priv->moving_focus_out) {
 		/*
 		 * Applet will retain focus if there is nothing else on the
 		 * panel to get focus
 		 */
-		applet->priv->moving_focus_out = FALSE;
+		priv->moving_focus_out = FALSE;
 		return FALSE;
 	}
 
@@ -1297,7 +1375,7 @@ mate_panel_applet_get_pattern_from_pixmap (MatePanelApplet *applet,
 	cairo_t         *cr;
 	cairo_pattern_t *pattern;
 
-	g_return_val_if_fail (PANEL_IS_APPLET (applet), NULL);
+	g_return_val_if_fail (MATE_PANEL_IS_APPLET (applet), NULL);
 
 	if (!gtk_widget_get_realized (GTK_WIDGET (applet)))
 		return NULL;
@@ -1349,15 +1427,17 @@ mate_panel_applet_handle_background_string (MatePanelApplet  *applet,
 					    GdkRGBA          *color,
 					    cairo_pattern_t **pattern)
 {
+	MatePanelAppletPrivate         *priv;
 	MatePanelAppletBackgroundType   retval;
 	char                          **elements;
 
+	priv = mate_panel_applet_get_instance_private (applet);
 	retval = PANEL_NO_BACKGROUND;
 
-	if (!gtk_widget_get_realized (GTK_WIDGET (applet)) || !applet->priv->background)
+	if (!gtk_widget_get_realized (GTK_WIDGET (applet)) || !priv->background)
 		return retval;
 
-	elements = g_strsplit (applet->priv->background, ":", -1);
+	elements = g_strsplit (priv->background, ":", -1);
 
 	if (elements [0] && !strcmp (elements [0], "none" )) {
 		retval = PANEL_NO_BACKGROUND;
@@ -1416,11 +1496,12 @@ mate_panel_applet_get_background (MatePanelApplet  *applet,
 				  GdkRGBA          *color,
 				  cairo_pattern_t **pattern)
 {
-	g_return_val_if_fail (PANEL_IS_APPLET (applet), PANEL_NO_BACKGROUND);
+	g_return_val_if_fail (MATE_PANEL_IS_APPLET (applet), PANEL_NO_BACKGROUND);
 
 	/* initial sanity */
 	if (pattern != NULL)
 		*pattern = NULL;
+
 	if (color != NULL)
 		memset (color, 0, sizeof (GdkRGBA));
 
@@ -1431,15 +1512,18 @@ static void
 mate_panel_applet_set_background_string (MatePanelApplet *applet,
 				    const gchar *background)
 {
-	if (applet->priv->background == background)
+	MatePanelAppletPrivate *priv;
+
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	if (priv->background == background)
 		return;
 
-	if (g_strcmp0 (applet->priv->background, background) == 0)
+	if (g_strcmp0 (priv->background, background) == 0)
 		return;
 
-	if (applet->priv->background)
-		g_free (applet->priv->background);
-	applet->priv->background = background ? g_strdup (background) : NULL;
+	g_free (priv->background);
+	priv->background = background ? g_strdup (background) : NULL;
 	mate_panel_applet_handle_background (applet);
 
 	g_object_notify (G_OBJECT (applet), "background");
@@ -1489,24 +1573,31 @@ mate_panel_applet_handle_background (MatePanelApplet *applet)
 static void
 mate_panel_applet_realize (GtkWidget *widget)
 {
+	MatePanelApplet        *applet;
+	MatePanelAppletPrivate *priv;
+
 	GTK_WIDGET_CLASS (mate_panel_applet_parent_class)->realize (widget);
 
-	if (MATE_PANEL_APPLET (widget)->priv->background)
-		mate_panel_applet_handle_background (MATE_PANEL_APPLET (widget));
+	applet = MATE_PANEL_APPLET (widget);
+	priv = mate_panel_applet_get_instance_private (applet);
+	if (priv->background)
+		mate_panel_applet_handle_background (applet);
 }
 
 static void
 mate_panel_applet_move_focus_out_of_applet (MatePanelApplet      *applet,
 				       GtkDirectionType  dir)
 {
-	GtkWidget *toplevel;
+	MatePanelAppletPrivate *priv;
+	GtkWidget              *toplevel;
 
-	applet->priv->moving_focus_out = TRUE;
+	priv = mate_panel_applet_get_instance_private (applet);
+	priv->moving_focus_out = TRUE;
 	toplevel = gtk_widget_get_toplevel (GTK_WIDGET (applet));
 	g_return_if_fail (toplevel);
 
 	gtk_widget_child_focus (toplevel, dir);
-	applet->priv->moving_focus_out = FALSE;
+	priv->moving_focus_out = FALSE;
 }
 
 static void
@@ -1515,35 +1606,38 @@ mate_panel_applet_change_background(MatePanelApplet *applet,
 				    GdkRGBA* color,
 				    cairo_pattern_t *pattern)
 {
-	GdkWindow *window;
+	MatePanelAppletPrivate *priv;
+	GdkWindow              *window;
 
-	if (applet->priv->out_of_process)
-		window = gtk_widget_get_window (GTK_WIDGET (applet->priv->plug));
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	if (priv->out_of_process)
+		window = gtk_widget_get_window (GTK_WIDGET (priv->plug));
 	else
 		window = gtk_widget_get_window (GTK_WIDGET (applet));
 
-	gtk_widget_set_app_paintable(GTK_WIDGET(applet),TRUE);
+	gtk_widget_set_app_paintable (GTK_WIDGET (applet),TRUE);
 
-	if (applet->priv->out_of_process)
-		_mate_panel_applet_apply_css(GTK_WIDGET(applet->priv->plug),type);
+	if (priv->out_of_process)
+		_mate_panel_applet_apply_css (GTK_WIDGET (priv->plug),type);
 
 	switch (type) {
 		case PANEL_NO_BACKGROUND:
-			if (applet->priv->out_of_process){
+			if (priv->out_of_process){
 				pattern = cairo_pattern_create_rgba (0,0,0,0);     /* Using NULL here breaks transparent */
 				gdk_window_set_background_pattern(window,pattern); /* backgrounds set by GTK theme */
 			}
 			break;
 		case PANEL_COLOR_BACKGROUND:
-			if (applet->priv->out_of_process){
+			if (priv->out_of_process){
 				gdk_window_set_background_rgba(window,color);
-				gtk_widget_queue_draw (applet->priv->plug); /*change the bg right away always */
+				gtk_widget_queue_draw (priv->plug); /*change the bg right away always */
 			}
 			break;
 		case PANEL_PIXMAP_BACKGROUND:
-			if (applet->priv->out_of_process){
+			if (priv->out_of_process){
 				gdk_window_set_background_pattern(window,pattern);
-				gtk_widget_queue_draw (applet->priv->plug); /*change the bg right away always */
+				gtk_widget_queue_draw (priv->plug); /*change the bg right away always */
 			}
 			break;
 		default:
@@ -1551,78 +1645,81 @@ mate_panel_applet_change_background(MatePanelApplet *applet,
 			break;
 	}
 
-	if (applet->priv->out_of_process){
-		GtkStyleContext *context =
-			gtk_widget_get_style_context (GTK_WIDGET(applet->priv->plug));
+	if (priv->out_of_process){
+		GtkStyleContext *context;
 
-		if (applet->priv->orient == MATE_PANEL_APPLET_ORIENT_UP ||
-			applet->priv->orient == MATE_PANEL_APPLET_ORIENT_DOWN){
-			gtk_style_context_add_class(context,"horizontal");
-		}
-		else {
-			gtk_style_context_add_class(context,"vertical");
-		}
+		context = gtk_widget_get_style_context (GTK_WIDGET (priv->plug));
+
+		if (priv->orient == MATE_PANEL_APPLET_ORIENT_UP ||
+		    priv->orient == MATE_PANEL_APPLET_ORIENT_DOWN)
+			gtk_style_context_add_class (context, "horizontal");
+		else
+			gtk_style_context_add_class (context, "vertical");
 	}
 }
 
 static void
 mate_panel_applet_get_property (GObject    *object,
-			   guint       prop_id,
-			   GValue     *value,
-			   GParamSpec *pspec)
+                                guint       prop_id,
+                                GValue     *value,
+                                GParamSpec *pspec)
 {
-	MatePanelApplet *applet = MATE_PANEL_APPLET (object);
+	MatePanelApplet        *applet;
+	MatePanelAppletPrivate *priv;
 
-	switch (prop_id) {
-	case PROP_OUT_OF_PROCESS:
-		g_value_set_boolean (value, applet->priv->out_of_process);
-		break;
-	case PROP_ID:
-		g_value_set_string (value, applet->priv->id);
-		break;
-	case PROP_CLOSURE:
-		g_value_set_pointer (value, applet->priv->closure);
-		break;
-	case PROP_CONNECTION:
-		g_value_set_object (value, applet->priv->connection);
-		break;
-	case PROP_PREFS_PATH:
-		g_value_set_string (value, applet->priv->prefs_path);
-		break;
-	case PROP_ORIENT:
-		g_value_set_uint (value, applet->priv->orient);
-		break;
-	case PROP_SIZE:
-		g_value_set_uint (value, applet->priv->size);
-		break;
-	case PROP_BACKGROUND:
-		g_value_set_string (value, applet->priv->background);
-		break;
-	case PROP_FLAGS:
-		g_value_set_uint (value, applet->priv->flags);
-		break;
-	case PROP_SIZE_HINTS: {
-		GVariant **children;
-		GVariant  *variant;
-		gint       i;
+	applet = MATE_PANEL_APPLET (object);
+	priv = mate_panel_applet_get_instance_private (applet);
 
-		children = g_new (GVariant *, applet->priv->size_hints_len);
-		for (i = 0; i < applet->priv->size_hints_len; i++)
-			children[i] = g_variant_new_int32 (applet->priv->size_hints[i]);
-		variant = g_variant_new_array (G_VARIANT_TYPE_INT32,
-					       children, applet->priv->size_hints_len);
-		g_free (children);
-		g_value_set_pointer (value, variant);
-	}
-		break;
-	case PROP_LOCKED:
-		g_value_set_boolean (value, applet->priv->locked);
-		break;
-	case PROP_LOCKED_DOWN:
-		g_value_set_boolean (value, applet->priv->locked_down);
-		break;
-	default:
-		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+	switch (prop_id) {
+		case PROP_OUT_OF_PROCESS:
+			g_value_set_boolean (value, priv->out_of_process);
+			break;
+		case PROP_ID:
+			g_value_set_string (value, priv->id);
+			break;
+		case PROP_CLOSURE:
+			g_value_set_pointer (value, priv->closure);
+			break;
+		case PROP_CONNECTION:
+			g_value_set_object (value, priv->connection);
+			break;
+		case PROP_PREFS_PATH:
+			g_value_set_string (value, priv->prefs_path);
+			break;
+		case PROP_ORIENT:
+			g_value_set_uint (value, priv->orient);
+			break;
+		case PROP_SIZE:
+			g_value_set_uint (value, priv->size);
+			break;
+		case PROP_BACKGROUND:
+			g_value_set_string (value, priv->background);
+			break;
+		case PROP_FLAGS:
+			g_value_set_uint (value, priv->flags);
+			break;
+		case PROP_SIZE_HINTS: {
+			GVariant **children;
+			GVariant  *variant;
+			gint       i;
+
+			children = g_new (GVariant *, priv->size_hints_len);
+			for (i = 0; i < priv->size_hints_len; i++)
+				children[i] = g_variant_new_int32 (priv->size_hints[i]);
+			variant = g_variant_new_array (G_VARIANT_TYPE_INT32,
+			                               children, priv->size_hints_len);
+			g_free (children);
+			g_value_set_pointer (value, variant);
+			break;
+		}
+		case PROP_LOCKED:
+			g_value_set_boolean (value, priv->locked);
+			break;
+		case PROP_LOCKED_DOWN:
+			g_value_set_boolean (value, priv->locked_down);
+			break;
+		default:
+			G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 	}
 }
 
@@ -1632,22 +1729,26 @@ mate_panel_applet_set_property (GObject      *object,
 			   const GValue *value,
 			   GParamSpec   *pspec)
 {
-	MatePanelApplet *applet = MATE_PANEL_APPLET (object);
+	MatePanelApplet        *applet;
+	MatePanelAppletPrivate *priv;
+
+	applet = MATE_PANEL_APPLET (object);
+	priv   = mate_panel_applet_get_instance_private (applet);
 
 	switch (prop_id) {
 	case PROP_OUT_OF_PROCESS:
-		applet->priv->out_of_process = g_value_get_boolean (value);
+		priv->out_of_process = g_value_get_boolean (value);
 		break;
 	case PROP_ID:
-		applet->priv->id = g_value_dup_string (value);
+		priv->id = g_value_dup_string (value);
 		break;
 	case PROP_CLOSURE:
-		applet->priv->closure = g_value_get_pointer (value);
-		g_closure_set_marshal (applet->priv->closure,
+		priv->closure = g_value_get_pointer (value);
+		g_closure_set_marshal (priv->closure,
 				       mate_panel_applet_marshal_BOOLEAN__STRING);
 		break;
 	case PROP_CONNECTION:
-		applet->priv->connection = g_value_dup_object (value);
+		priv->connection = g_value_dup_object (value);
 		break;
 	case PROP_PREFS_PATH:
 		mate_panel_applet_set_preferences_path (applet, g_value_get_string (value));
@@ -1700,13 +1801,15 @@ add_tab_bindings (GtkBindingSet   *binding_set,
 static void
 mate_panel_applet_setup (MatePanelApplet *applet)
 {
+	MatePanelAppletPrivate *priv;
 	GValue   value = {0, };
 	GArray  *params;
 	gint     i;
 	gboolean ret;
 
-	g_assert (applet->priv->id != NULL &&
-		  applet->priv->closure != NULL);
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	g_assert ((priv->id != NULL) && (priv->closure != NULL));
 
 	params = g_array_sized_new (FALSE, TRUE, sizeof (GValue), 2);
 	value.g_type = 0;
@@ -1716,16 +1819,16 @@ mate_panel_applet_setup (MatePanelApplet *applet)
 
 	value.g_type = 0;
 	g_value_init (&value, G_TYPE_STRING);
-	g_value_set_string (&value, applet->priv->id);
+	g_value_set_string (&value, priv->id);
 	g_array_append_val (params, value);
 
 	value.g_type = 0;
 	g_value_init (&value, G_TYPE_BOOLEAN);
 
-	g_closure_invoke (applet->priv->closure,
-			  &value, params->len,
-			  (GValue *) params->data,
-			  NULL);
+	g_closure_invoke (priv->closure,
+	                  &value, params->len,
+	                  (GValue *) params->data,
+	                  NULL);
 
 	for (i = 0; i < params->len; i++)
 		g_value_unset (&g_array_index (params, GValue, i));
@@ -1789,28 +1892,30 @@ static void _mate_panel_applet_prepare_css (GtkStyleContext *context)
 static void
 mate_panel_applet_init (MatePanelApplet *applet)
 {
-	applet->priv = mate_panel_applet_get_instance_private (applet);
-
-	applet->priv->flags  = MATE_PANEL_APPLET_FLAGS_NONE;
-	applet->priv->orient = MATE_PANEL_APPLET_ORIENT_UP;
-	applet->priv->size   = 24;
-
-	applet->priv->panel_action_group = gtk_action_group_new ("PanelActions");
-	gtk_action_group_set_translation_domain (applet->priv->panel_action_group, GETTEXT_PACKAGE);
-	gtk_action_group_add_actions (applet->priv->panel_action_group,
-				      menu_entries,
-				      G_N_ELEMENTS (menu_entries),
-				      applet);
-	gtk_action_group_add_toggle_actions (applet->priv->panel_action_group,
-					     menu_toggle_entries,
-					     G_N_ELEMENTS (menu_toggle_entries),
-					     applet);
-
-	applet->priv->ui_manager = gtk_ui_manager_new ();
-	gtk_ui_manager_insert_action_group (applet->priv->ui_manager,
-					    applet->priv->panel_action_group, 1);
-	gtk_ui_manager_add_ui_from_string (applet->priv->ui_manager,
-					   panel_menu_ui, -1, NULL);
+	MatePanelAppletPrivate *priv;
+
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	priv->flags  = MATE_PANEL_APPLET_FLAGS_NONE;
+	priv->orient = MATE_PANEL_APPLET_ORIENT_UP;
+	priv->size   = 24;
+
+	priv->panel_action_group = gtk_action_group_new ("PanelActions");
+	gtk_action_group_set_translation_domain (priv->panel_action_group, GETTEXT_PACKAGE);
+	gtk_action_group_add_actions (priv->panel_action_group,
+	                              menu_entries,
+	                              G_N_ELEMENTS (menu_entries),
+	                              applet);
+	gtk_action_group_add_toggle_actions (priv->panel_action_group,
+	                                     menu_toggle_entries,
+	                                     G_N_ELEMENTS (menu_toggle_entries),
+	                                     applet);
+
+	priv->ui_manager = gtk_ui_manager_new ();
+	gtk_ui_manager_insert_action_group (priv->ui_manager,
+	                                    priv->panel_action_group, 1);
+	gtk_ui_manager_add_ui_from_string (priv->ui_manager,
+	                                   panel_menu_ui, -1, NULL);
 
 	gtk_widget_set_events (GTK_WIDGET (applet),
 			       GDK_BUTTON_PRESS_MASK |
@@ -1824,35 +1929,38 @@ mate_panel_applet_constructor (GType                  type,
 {
 	GObject     *object;
 	MatePanelApplet *applet;
+	MatePanelAppletPrivate *priv;
 
 	object = G_OBJECT_CLASS (mate_panel_applet_parent_class)->constructor (type,
 	                                                                  n_construct_properties,
 	                                                                  construct_properties);
 	applet = MATE_PANEL_APPLET (object);
+	priv   = mate_panel_applet_get_instance_private (applet);
 
-	if (!applet->priv->out_of_process)
+	if (!priv->out_of_process)
 		return object;
 
 #ifdef HAVE_X11
 	if (GDK_IS_X11_DISPLAY (gdk_display_get_default ()))
 	{
-		applet->priv->plug = gtk_plug_new (0);
-
-		GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (applet->priv->plug));
-		GdkVisual *visual = gdk_screen_get_rgba_visual (screen);
-		gtk_widget_set_visual (GTK_WIDGET (applet->priv->plug), visual);
 		GtkStyleContext *context;
-		context = gtk_widget_get_style_context (GTK_WIDGET(applet->priv->plug));
-		gtk_style_context_add_class (context,"gnome-panel-menu-bar");
-		gtk_style_context_add_class (context,"mate-panel-menu-bar");
-		gtk_widget_set_name (GTK_WIDGET (applet->priv->plug), "PanelPlug");
+		GtkWidget       *widget;
+
+		priv->plug = gtk_plug_new (0);
+		widget = GTK_WIDGET (priv->plug);
+		gtk_widget_set_visual (widget,
+		                       gdk_screen_get_rgba_visual (gtk_widget_get_screen (widget)));
+		context = gtk_widget_get_style_context (widget);
+		gtk_style_context_add_class (context, "gnome-panel-menu-bar");
+		gtk_style_context_add_class (context, "mate-panel-menu-bar");
+		gtk_widget_set_name (widget, "PanelPlug");
 		_mate_panel_applet_prepare_css (context);
 
-		g_signal_connect_swapped (G_OBJECT (applet->priv->plug), "embedded",
-					  G_CALLBACK (mate_panel_applet_setup),
-					  applet);
+		g_signal_connect_swapped (G_OBJECT (priv->plug), "embedded",
+		                          G_CALLBACK (mate_panel_applet_setup),
+		                          applet);
 
-		gtk_container_add (GTK_CONTAINER (applet->priv->plug), GTK_WIDGET (applet));
+		gtk_container_add (GTK_CONTAINER (priv->plug), GTK_WIDGET (applet));
 	} else
 #endif
 	{ /* not using X11 */
@@ -2119,35 +2227,35 @@ get_property_cb (GDBusConnection *connection,
 		 GError         **error,
 		 gpointer         user_data)
 {
-	MatePanelApplet *applet = MATE_PANEL_APPLET (user_data);
-	GVariant    *retval = NULL;
+	MatePanelAppletPrivate *priv;
+	GVariant *retval = NULL;
+
+	priv = mate_panel_applet_get_instance_private (MATE_PANEL_APPLET (user_data));
 
 	if (g_strcmp0 (property_name, "PrefsPath") == 0) {
-		retval = g_variant_new_string (applet->priv->prefs_path ?
-					       applet->priv->prefs_path : "");
+		retval = g_variant_new_string (priv->prefs_path ? priv->prefs_path : "");
 	} else if (g_strcmp0 (property_name, "Orient") == 0) {
-		retval = g_variant_new_uint32 (applet->priv->orient);
+		retval = g_variant_new_uint32 (priv->orient);
 	} else if (g_strcmp0 (property_name, "Size") == 0) {
-		retval = g_variant_new_uint32 (applet->priv->size);
+		retval = g_variant_new_uint32 (priv->size);
 	} else if (g_strcmp0 (property_name, "Background") == 0) {
-		retval = g_variant_new_string (applet->priv->background ?
-					       applet->priv->background : "");
+		retval = g_variant_new_string (priv->background ? priv->background : "");
 	} else if (g_strcmp0 (property_name, "Flags") == 0) {
-		retval = g_variant_new_uint32 (applet->priv->flags);
+		retval = g_variant_new_uint32 (priv->flags);
 	} else if (g_strcmp0 (property_name, "SizeHints") == 0) {
 		GVariant **children;
 		gint       i;
 
-		children = g_new (GVariant *, applet->priv->size_hints_len);
-		for (i = 0; i < applet->priv->size_hints_len; i++)
-			children[i] = g_variant_new_int32 (applet->priv->size_hints[i]);
+		children = g_new (GVariant *, priv->size_hints_len);
+		for (i = 0; i < priv->size_hints_len; i++)
+			children[i] = g_variant_new_int32 (priv->size_hints[i]);
 		retval = g_variant_new_array (G_VARIANT_TYPE_INT32,
-					      children, applet->priv->size_hints_len);
+		                              children, priv->size_hints_len);
 		g_free (children);
 	} else if (g_strcmp0 (property_name, "Locked") == 0) {
-		retval = g_variant_new_boolean (applet->priv->locked);
+		retval = g_variant_new_boolean (priv->locked);
 	} else if (g_strcmp0 (property_name, "LockedDown") == 0) {
-		retval = g_variant_new_boolean (applet->priv->locked_down);
+		retval = g_variant_new_boolean (priv->locked_down);
 	}
 
 	return retval;
@@ -2223,22 +2331,24 @@ static GDBusNodeInfo *introspection_data = NULL;
 static void
 mate_panel_applet_register_object (MatePanelApplet *applet)
 {
+	MatePanelAppletPrivate *priv;
 	GError     *error = NULL;
 	static gint id = 0;
 
 	if (!introspection_data)
 		introspection_data = g_dbus_node_info_new_for_xml (introspection_xml, NULL);
 
-	applet->priv->object_path = g_strdup_printf (MATE_PANEL_APPLET_OBJECT_PATH, applet->priv->id, id++);
-	applet->priv->object_id =
-		g_dbus_connection_register_object (applet->priv->connection,
-						   applet->priv->object_path,
-						   introspection_data->interfaces[0],
-						   &interface_vtable,
-						   applet, NULL,
-						   &error);
-	if (!applet->priv->object_id) {
-		g_printerr ("Failed to register object %s: %s\n", applet->priv->object_path, error->message);
+	priv = mate_panel_applet_get_instance_private (applet);
+	priv->object_path = g_strdup_printf (MATE_PANEL_APPLET_OBJECT_PATH, priv->id, id++);
+	priv->object_id =
+		g_dbus_connection_register_object (priv->connection,
+		                                   priv->object_path,
+		                                   introspection_data->interfaces[0],
+		                                   &interface_vtable,
+		                                   applet, NULL,
+		                                   &error);
+	if (!priv->object_id) {
+		g_printerr ("Failed to register object %s: %s\n", priv->object_path, error->message);
 		g_error_free (error);
 	}
 }
@@ -2311,7 +2421,6 @@ _mate_panel_applet_factory_main_internal (const gchar               *factory_id,
 				     GType                      applet_type,
 				     MatePanelAppletFactoryCallback callback,
 					 gpointer                   user_data)
-
 {
 	MatePanelAppletFactory* factory;
 	GClosure* closure;
@@ -2418,15 +2527,19 @@ guint32
 mate_panel_applet_get_xid (MatePanelApplet *applet,
 		      GdkScreen   *screen)
 {
+	MatePanelAppletPrivate *priv;
+
+	priv = mate_panel_applet_get_instance_private (applet);
+
 	/* out_of_process should only be true on X11, so an extra runtime Wayland check is not needed */
-	if (applet->priv->out_of_process == FALSE)
+	if (priv->out_of_process == FALSE)
 		return 0;
 
 #ifdef HAVE_X11
-	gtk_window_set_screen (GTK_WINDOW (applet->priv->plug), screen);
-	gtk_widget_show (applet->priv->plug);
+	gtk_window_set_screen (GTK_WINDOW (priv->plug), screen);
+	gtk_widget_show (priv->plug);
 
-	return gtk_plug_get_id (GTK_PLUG (applet->priv->plug));
+	return gtk_plug_get_id (GTK_PLUG (priv->plug));
 #else
 	return 0;
 #endif
@@ -2435,7 +2548,11 @@ mate_panel_applet_get_xid (MatePanelApplet *applet,
 const gchar *
 mate_panel_applet_get_object_path (MatePanelApplet *applet)
 {
-	return applet->priv->object_path;
+	MatePanelAppletPrivate *priv;
+
+	priv = mate_panel_applet_get_instance_private (applet);
+
+	return priv->object_path;
 }
 
 G_MODULE_EXPORT GtkWidget *
diff --git a/libmate-panel-applet/mate-panel-applet.h b/libmate-panel-applet/mate-panel-applet.h
index 4f1b4cf5..05017f84 100644
--- a/libmate-panel-applet/mate-panel-applet.h
+++ b/libmate-panel-applet/mate-panel-applet.h
@@ -31,9 +31,10 @@
 #include <cairo.h>
 #include <cairo-gobject.h>
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+G_BEGIN_DECLS
+
+#define PANEL_TYPE_APPLET mate_panel_applet_get_type ()
+G_DECLARE_DERIVABLE_TYPE (MatePanelApplet, mate_panel_applet, MATE_PANEL, APPLET, GtkEventBox)
 
 typedef enum {
 	MATE_PANEL_APPLET_ORIENT_UP,
@@ -44,13 +45,6 @@ typedef enum {
 #define MATE_PANEL_APPLET_ORIENT_LAST  MATE_PANEL_APPLET_ORIENT_RIGHT
 } MatePanelAppletOrient;
 
-#define PANEL_TYPE_APPLET              (mate_panel_applet_get_type ())
-#define MATE_PANEL_APPLET(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), PANEL_TYPE_APPLET, MatePanelApplet))
-#define MATE_PANEL_APPLET_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), PANEL_TYPE_APPLET, MatePanelAppletClass))
-#define PANEL_IS_APPLET(o)             (G_TYPE_CHECK_INSTANCE_TYPE ((o), PANEL_TYPE_APPLET))
-#define PANEL_IS_APPLET_CLASS(k)       (G_TYPE_CHECK_CLASS_TYPE ((k), PANEL_TYPE_APPLET))
-#define MATE_PANEL_APPLET_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), PANEL_TYPE_APPLET, MatePanelAppletClass))
-
 typedef enum {
 	PANEL_NO_BACKGROUND,
 	PANEL_COLOR_BACKGROUND,
@@ -65,18 +59,8 @@ typedef enum {
 #define MATE_PANEL_APPLET_FLAGS_ALL (MATE_PANEL_APPLET_EXPAND_MAJOR|MATE_PANEL_APPLET_EXPAND_MINOR|MATE_PANEL_APPLET_HAS_HANDLE)
 } MatePanelAppletFlags;
 
-typedef struct _MatePanelApplet        MatePanelApplet;
-typedef struct _MatePanelAppletClass   MatePanelAppletClass;
-typedef struct _MatePanelAppletPrivate MatePanelAppletPrivate;
-
 typedef gboolean (*MatePanelAppletFactoryCallback) (MatePanelApplet* applet, const gchar *iid, gpointer user_data);
 
-struct _MatePanelApplet {
-	GtkEventBox event_box;
-
-	MatePanelAppletPrivate* priv;
-};
-
 struct _MatePanelAppletClass {
 	GtkEventBoxClass event_box_class;
 
@@ -89,8 +73,6 @@ struct _MatePanelAppletClass {
 	void (*move_focus_out_of_applet) (MatePanelApplet* frame, GtkDirectionType direction);
 };
 
-GType mate_panel_applet_get_type(void) G_GNUC_CONST;
-
 GtkWidget* mate_panel_applet_new(void);
 
 MatePanelAppletOrient mate_panel_applet_get_orient(MatePanelApplet* applet);
@@ -191,8 +173,6 @@ return mate_panel_applet_factory_setup_in_process (factory_id, type,
                                                callback, data);  \
 }
 
-#ifdef __cplusplus
-}
-#endif
+G_END_DECLS
 
 #endif /* __MATE_PANEL_APPLET_H__ */