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/*
* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
* Copyright 2002 Ximian, Inc.
* 2002 Sun Microsystems Inc.
* Copyright 2010, 2011 Novell, Inc.
*
*
* 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 2.1 of the License, 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _ATSPI_DEVICE_LISTENER_H_
#define _ATSPI_DEVICE_LISTENER_H_
#include "glib-object.h"
#include "atspi-types.h"
G_BEGIN_DECLS
GType atspi_device_event_get_type (void);
/**
* AtspiDeviceListenerCB:
* @stroke: (transfer full): The #AtspiDeviceEvent for which notification is
* being received.
* @user_data: Data which is passed to the client each time this callback is notified.
*
* A callback function prototype via which clients receive device event notifications.
*
* Returns: #TRUE if the client wishes to consume/preempt the event, preventing it from being
* relayed to the currently focussed application, #FALSE if the event delivery should proceed as normal.
**/
typedef gboolean (*AtspiDeviceListenerCB) (AtspiDeviceEvent *stroke,
void *user_data);
/**
* AtspiDeviceListenerSimpleCB:
* @stroke: (transfer full): The #AtspiDeviceEvent for which notification is
* being received.
*
* Similar to #AtspiDeviceListenerCB, but with no user data.
*
* Returns: #TRUE if the client wishes to consume/preempt the event, preventing it from being
* relayed to the currently focussed application, #FALSE if the event delivery should proceed as normal.
**/
typedef gboolean (*AtspiDeviceListenerSimpleCB) (const AtspiDeviceEvent *stroke);
#define ATSPI_TYPE_DEVICE_LISTENER (atspi_device_listener_get_type ())
#define ATSPI_DEVICE_LISTENER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), ATSPI_TYPE_DEVICE_LISTENER, AtspiDeviceListener))
#define ATSPI_DEVICE_LISTENER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), ATSPI_TYPE_DEVICE_LISTENER, AtspiDeviceListenerClass))
#define ATSPI_IS_DEVICE_LISTENER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATSPI_TYPE_DEVICE_LISTENER))
#define ATSPI_IS_DEVICE_LISTENER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), ATSPI_TYPE_DEVICE_LISTENER))
#define ATSPI_DEVICE_LISTENER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), ATSPI_TYPE_DEVICE_LISTENER, AtspiDeviceListenerClass))
typedef struct _AtspiDeviceListener AtspiDeviceListener;
struct _AtspiDeviceListener
{
GObject parent;
guint id;
GList *callbacks;
};
typedef struct _AtspiDeviceListenerClass AtspiDeviceListenerClass;
struct _AtspiDeviceListenerClass
{
GObjectClass parent_class;
gboolean (*device_event) (AtspiDeviceListener *listener, const AtspiDeviceEvent *event);
};
GType atspi_device_listener_get_type (void);
AtspiDeviceListener *atspi_device_listener_new (AtspiDeviceListenerCB callback, void *user_data, GDestroyNotify callback_destroyed);
AtspiDeviceListener *atspi_device_listener_new_simple (AtspiDeviceListenerSimpleCB callback, GDestroyNotify callback_destroyed);
void atspi_device_listener_add_callback (AtspiDeviceListener *listener, AtspiDeviceListenerCB callback, GDestroyNotify callback_destroyed, void *user_data);
void atspi_device_listener_remove_callback (AtspiDeviceListener *listener, AtspiDeviceListenerCB callback);
G_END_DECLS
#endif /* _ATSPI_DEVICE_LISTENER_H_ */
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