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/*
* Copyright © 2011 Canonical Limited
*
* This program 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
* USA.
*
* Authors: Ryan Lortie <desrt@desrt.ca>
*/
#include "config.h"
#include "gactionobservable.h"
G_DEFINE_INTERFACE (GActionObservable, g_action_observable, G_TYPE_OBJECT)
/*
* SECTION:gactionobserable
* @short_description: an interface implemented by objects that report
* changes to actions
*/
void
g_action_observable_default_init (GActionObservableInterface *iface)
{
}
/*
* g_action_observable_register_observer:
* @observable: a #GActionObservable
* @action_name: the name of the action
* @observer: the #GActionObserver to which the events will be reported
*
* Registers @observer as being interested in changes to @action_name on
* @observable.
*/
void
g_action_observable_register_observer (GActionObservable *observable,
const gchar *action_name,
GActionObserver *observer)
{
g_return_if_fail (G_IS_ACTION_OBSERVABLE (observable));
G_ACTION_OBSERVABLE_GET_IFACE (observable)
->register_observer (observable, action_name, observer);
}
/*
* g_action_observable_unregister_observer:
* @observable: a #GActionObservable
* @action_name: the name of the action
* @observer: the #GActionObserver 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
g_action_observable_unregister_observer (GActionObservable *observable,
const gchar *action_name,
GActionObserver *observer)
{
g_return_if_fail (G_IS_ACTION_OBSERVABLE (observable));
G_ACTION_OBSERVABLE_GET_IFACE (observable)
->unregister_observer (observable, action_name, observer);
}
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