Add an about-to-show signal to the menu items and hook this up

to be emitted when someone calls dbusmenu_menuitem_send_about_to_show

2 files changed, 20 insertions, 2 deletions

diff --git a/libdbusmenu-glib/menuitem.c b/libdbusmenu-glib/menuitem.c
index ad6472b..747cc01 100644
--- a/libdbusmenu-glib/menuitem.c
+++ b/libdbusmenu-glib/menuitem.c
@@ -70,6 +70,7 @@ enum {
 	CHILD_MOVED,
 	REALIZED,
 	SHOW_TO_USER,
+	ABOUT_TO_SHOW,
 	LAST_SIGNAL
 };
 
@@ -229,6 +230,21 @@ dbusmenu_menuitem_class_init (DbusmenuMenuitemClass *klass)
 	                                           g_cclosure_marshal_VOID__UINT,
 	                                           G_TYPE_NONE, 1, G_TYPE_UINT, G_TYPE_NONE);
 
+	/**
+		DbusmenuMenuitem::about-to-show:
+		@arg0: The #DbusmenuMenuitem object.
+
+		Emitted when the submenu for this item
+		is about to be shown
+	*/
+	signals[ABOUT_TO_SHOW] =     g_signal_new(DBUSMENU_MENUITEM_SIGNAL_ABOUT_TO_SHOW,
+	                                          G_TYPE_FROM_CLASS(klass),
+	                                          G_SIGNAL_RUN_LAST,
+	                                          G_STRUCT_OFFSET(DbusmenuMenuitemClass, about_to_show),
+	                                          NULL, NULL,
+	                                          _dbusmenu_menuitem_marshal_VOID__VOID,
+	                                          G_TYPE_BOOLEAN, 0, G_TYPE_NONE);
+
 	g_object_class_install_property (object_class, PROP_ID,
 	                                 g_param_spec_int(PROP_ID_S, "ID for the menu item",
 	                                              "This is a unique indentifier for the menu item.",
@@ -398,7 +414,8 @@ send_about_to_show (DbusmenuMenuitem * mi, void (*cb) (DbusmenuMenuitem * mi, gp
 	if (dbusmenu_menuitem_get_children(mi) == NULL) {
 		g_warning("About to Show called on an item wihtout submenus.  We're ignoring it.");
 	} else {
-		g_signal_emit(G_OBJECT(mi), signals[ITEM_ACTIVATED], 0, 0 /* timestamp */, TRUE);
+		gboolean dummy;
+		g_signal_emit(G_OBJECT(mi), signals[ABOUT_TO_SHOW], 0, &dummy);
 	}
 
 	if (cb != NULL) {
diff --git a/libdbusmenu-glib/menuitem.h b/libdbusmenu-glib/menuitem.h
index 9158f3e..0058ded 100644
--- a/libdbusmenu-glib/menuitem.h
+++ b/libdbusmenu-glib/menuitem.h
@@ -50,6 +50,7 @@ G_BEGIN_DECLS
 #define DBUSMENU_MENUITEM_SIGNAL_REALIZED            "realized"
 #define DBUSMENU_MENUITEM_SIGNAL_REALIZED_ID         (g_signal_lookup(DBUSMENU_MENUITEM_SIGNAL_REALIZED, DBUSMENU_TYPE_MENUITEM))
 #define DBUSMENU_MENUITEM_SIGNAL_SHOW_TO_USER        "show-to-user"
+#define DBUSMENU_MENUITEM_SIGNAL_ABOUT_TO_SHOW       "about-to-show"
 
 #define DBUSMENU_MENUITEM_PROP_TYPE                  "type"
 #define DBUSMENU_MENUITEM_PROP_VISIBLE               "visible"
@@ -158,6 +159,7 @@ struct _DbusmenuMenuitemClass
 	void (*send_about_to_show) (DbusmenuMenuitem * mi, void (*cb) (DbusmenuMenuitem * mi, gpointer user_data), gpointer cb_data);
 
 	void (*show_to_user) (DbusmenuMenuitem * mi, guint timestamp, gpointer cb_data);
+	gboolean (*about_to_show) (void);
 
 	/*< Private >*/
 	void (*reserved1) (void);
@@ -165,7 +167,6 @@ struct _DbusmenuMenuitemClass
 	void (*reserved3) (void);
 	void (*reserved4) (void);
 	void (*reserved5) (void);
-	void (*reserved6) (void);
 };
 
 GType dbusmenu_menuitem_get_type (void);