Add HildonAppMenu::changed signal

* hildon/hildon-app-menu.c: (hildon_app_menu_insert),
(hildon_app_menu_add_filter), (hildon_app_menu_class_init):
Emit a new HildonAppMenu:changed signal when there are changes in
the menu children.

diff --git a/ChangeLog b/ChangeLog
index 1c1cd66..d3cd7bd 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
 2009-09-10  Claudio Saavedra  <csaavedra@igalia.com>
 
+       Add HildonAppMenu::changed signal
+
+       * hildon/hildon-app-menu.c: (hildon_app_menu_insert),
+       (hildon_app_menu_add_filter), (hildon_app_menu_class_init):
+       Emit a new HildonAppMenu:changed signal when there are changes in
+       the menu children.
+
+2009-09-10  Claudio Saavedra  <csaavedra@igalia.com>
+
        Add hildon_app_menu_has_visible_children() private method
 
        * hildon/hildon-app-menu-private.h: Add below private method.

diff --git a/hildon/hildon-app-menu.c b/hildon/hildon-app-menu.c
index 243c173..06e8165 100644 (file)
--- a/hildon/hildon-app-menu.c
+++ b/hildon/hildon-app-menu.c
@@ -133,10 +133,22 @@ remove_item_from_list                           (GList    **list,
                                                  gpointer   item);
 
 static void
+emit_menu_changed                               (HildonAppMenu *menu,
+                                                 gpointer item);
+
+static void
 hildon_app_menu_apply_style                     (GtkWidget *widget);
 
 G_DEFINE_TYPE (HildonAppMenu, hildon_app_menu, GTK_TYPE_WINDOW);
 
+enum
+{
+    CHANGED,
+    LAST_SIGNAL
+};
+
+static guint app_menu_signals[LAST_SIGNAL] = { 0 };
+
 /**
  * hildon_app_menu_new:
  *
@@ -194,6 +206,9 @@ hildon_app_menu_insert                          (HildonAppMenu *menu,
 
     /* Remove item from list when it is destroyed */
     g_object_weak_ref (G_OBJECT (item), (GWeakNotify) remove_item_from_list, &(priv->buttons));
+    g_object_weak_ref (G_OBJECT (item), (GWeakNotify) emit_menu_changed, menu);
+
+    g_signal_emit (menu, app_menu_signals[CHANGED], 0);
 }
 
 /**
@@ -301,6 +316,9 @@ hildon_app_menu_add_filter                      (HildonAppMenu *menu,
 
     /* Remove filter from list when it is destroyed */
     g_object_weak_ref (G_OBJECT (filter), (GWeakNotify) remove_item_from_list, &(priv->filters));
+    g_object_weak_ref (G_OBJECT (filter), (GWeakNotify) emit_menu_changed, menu);
+
+    g_signal_emit (menu, app_menu_signals[CHANGED], 0);
 }
 
 static void
@@ -428,6 +446,13 @@ remove_item_from_list                           (GList    **list,
 }
 
 static void
+emit_menu_changed                               (HildonAppMenu *menu,
+                                                 gpointer item)
+{
+    g_signal_emit (menu, app_menu_signals[CHANGED], 0);
+}
+
+static void
 hildon_app_menu_show_all                        (GtkWidget *widget)
 {
     HildonAppMenu *menu = HILDON_APP_MENU (widget);
@@ -1050,4 +1075,22 @@ hildon_app_menu_class_init                      (HildonAppMenuClass *klass)
             "the screen edges (in horizontal mode)",
             0, G_MAXUINT, 50,
             G_PARAM_READABLE));
+
+
+    /**
+     * HildonAppMenu::changed:
+     * @widget: the widget that received the signal
+     *
+     * The HildonAppMenu::changed signal is emitted whenever an
+     * item or filter is added or removed from the menu.
+     *
+     * Since: 2.2
+     */
+    app_menu_signals[CHANGED] =
+        g_signal_new ("changed",
+                      G_TYPE_FROM_CLASS (klass),
+                      G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                      0,
+                      NULL, NULL,
+                      g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0, NULL);
 }