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:
*
/* 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);
}
/**
/* 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
}
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);
}
/**
+ * hildon_app_menu_has_visible_children:
+ * @menu: a #HildonAppMenu
+ *
+ * Returns whether this menu has any visible items
+ * and/or filters. If this is %FALSE, the menu will
+ * not be popped up.
+ *
+ * Returns: whether there are visible items or filters
+ *
+ * Since: 2.2
+ **/
+gboolean
+hildon_app_menu_has_visible_children (HildonAppMenu *menu)
+{
+ HildonAppMenuPrivate *priv;
+ GList *i;
+ gboolean show_menu = FALSE;
+
+ priv = HILDON_APP_MENU_GET_PRIVATE (menu);
+
+ /* Don't show menu if it doesn't contain visible items */
+ for (i = priv->buttons; i && !show_menu; i = i->next)
+ show_menu = GTK_WIDGET_VISIBLE (i->data);
+
+ for (i = priv->filters; i && !show_menu; i = i->next)
+ show_menu = GTK_WIDGET_VISIBLE (i->data);
+
+ return show_menu;
+}
+
+/**
* hildon_app_menu_popup:
* @menu: a #HildonAppMenu
* @parent_window: a #GtkWindow
hildon_app_menu_popup (HildonAppMenu *menu,
GtkWindow *parent_window)
{
- HildonAppMenuPrivate *priv;
- gboolean show_menu = FALSE;
- GList *i;
-
g_return_if_fail (HILDON_IS_APP_MENU (menu));
g_return_if_fail (GTK_IS_WINDOW (parent_window));
- priv = HILDON_APP_MENU_GET_PRIVATE (menu);
-
- /* Don't show menu if it doesn't contain visible items */
- for (i = priv->buttons; i && !show_menu; i = i->next)
- show_menu = GTK_WIDGET_VISIBLE (i->data);
-
- for (i = priv->filters; i && !show_menu; i = i->next)
- show_menu = GTK_WIDGET_VISIBLE (i->data);
-
- if (show_menu) {
+ if (hildon_app_menu_has_visible_children (menu)) {
hildon_app_menu_set_parent_window (menu, parent_window);
gtk_widget_show (GTK_WIDGET (menu));
}
"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);
}