From e4283f6d48b98e764b988b43bbc86b9d52e6ec94 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:54:43 +0200 Subject: Adding upstream version 43.9. Signed-off-by: Daniel Baumann --- src/gtkactionobservable.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 src/gtkactionobservable.c (limited to 'src/gtkactionobservable.c') diff --git a/src/gtkactionobservable.c b/src/gtkactionobservable.c new file mode 100644 index 0000000..ab90df2 --- /dev/null +++ b/src/gtkactionobservable.c @@ -0,0 +1,78 @@ +/* + * Copyright © 2011 Canonical Limited + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2 of the + * licence or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see . + * + * Authors: Ryan Lortie + */ + +#include "config.h" + +#include "gtkactionobservable.h" + +G_DEFINE_INTERFACE (GtkActionObservable, gtk_action_observable, G_TYPE_OBJECT) + +/* + * SECTION:gtkactionobserable + * @short_description: an interface implemented by objects that report + * changes to actions + */ + +void +gtk_action_observable_default_init (GtkActionObservableInterface *iface) +{ +} + +/** + * gtk_action_observable_register_observer: + * @observable: a #GtkActionObservable + * @action_name: the name of the action + * @observer: the #GtkActionObserver to which the events will be reported + * + * Registers @observer as being interested in changes to @action_name on + * @observable. + */ +void +gtk_action_observable_register_observer (GtkActionObservable *observable, + const gchar *action_name, + GtkActionObserver *observer) +{ + g_return_if_fail (GTK_IS_ACTION_OBSERVABLE (observable)); + + GTK_ACTION_OBSERVABLE_GET_IFACE (observable) + ->register_observer (observable, action_name, observer); +} + +/** + * gtk_action_observable_unregister_observer: + * @observable: a #GtkActionObservable + * @action_name: the name of the action + * @observer: the #GtkActionObserver to which the events will be reported + * + * Removes the registration of @observer as being interested in changes + * to @action_name on @observable. + * + * If the observer was registered multiple times, it must be + * unregistered an equal number of times. + */ +void +gtk_action_observable_unregister_observer (GtkActionObservable *observable, + const gchar *action_name, + GtkActionObserver *observer) +{ + g_return_if_fail (GTK_IS_ACTION_OBSERVABLE (observable)); + + GTK_ACTION_OBSERVABLE_GET_IFACE (observable) + ->unregister_observer (observable, action_name, observer); +} -- cgit v1.2.3