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/*
 * AT-SPI - Assistive Technology Service Provider Interface
 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
 *
 * Copyright 2020 SUSE LLC.
 *           
 *
 * 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_H_
#define _ATSPI_DEVICE_H_

#include "glib-object.h"

#include "atspi-types.h"

G_BEGIN_DECLS

#define ATSPI_TYPE_DEVICE                        (atspi_device_get_type ())
#define ATSPI_DEVICE(obj)                        (G_TYPE_CHECK_INSTANCE_CAST ((obj), ATSPI_TYPE_DEVICE, AtspiDevice))
#define ATSPI_DEVICE_CLASS(klass)                (G_TYPE_CHECK_CLASS_CAST ((klass), ATSPI_TYPE_DEVICE, AtspiDeviceClass))
#define ATSPI_IS_DEVICE(obj)                     (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATSPI_TYPE_DEVICE))
#define ATSPI_IS_DEVICE_CLASS(klass)             (G_TYPE_CHECK_CLASS_TYPE ((klass), ATSPI_TYPE_DEVICE))
#define ATSPI_DEVICE_GET_CLASS(obj)              (G_TYPE_INSTANCE_GET_CLASS ((obj), ATSPI_TYPE_DEVICE, AtspiDeviceClass))

typedef struct _AtspiDevice AtspiDevice;
struct _AtspiDevice
{
  GObject parent;
};

typedef struct _AtspiDeviceClass AtspiDeviceClass;
struct _AtspiDeviceClass
{
  GObjectClass parent_class;

  void (*add_key_grab) (AtspiDevice *device, AtspiKeyDefinition *kd);
  void (*remove_key_grab) (AtspiDevice *device, guint id);
  guint (*map_modifier) (AtspiDevice *device, gint keycode);
  void (*unmap_modifier) (AtspiDevice *device, gint keycode);
  guint (*get_modifier) (AtspiDevice *device, gint keycode);
  gboolean (*grab_keyboard) (AtspiDevice *device);
  void (*ungrab_keyboard) (AtspiDevice *device);
  guint (*get_locked_modifiers) (AtspiDevice *device);
};

GType atspi_device_get_type (void);

/**
 * AtspiKeyCallback:
 * @device: the device.
 * @pressed: TRUE if the key is being pressed, FALSE if being released.
 * @keycode: the hardware code for the key.
 * @keysym: the keysym for the key.
 * @modifiers: a bitflag indicating which key modifiers are active.
 * @keystring: the text corresponding to the keypress.
 * @user_data: (closure): user-supplied data
 *
 * A callback that will be invoked when a key is pressed.
 */
typedef void (*AtspiKeyCallback) (AtspiDevice *device, gboolean pressed, guint keycode, guint keysym, guint modifiers, const gchar *keystring, void *user_data);

AtspiDevice *atspi_device_new ();

gboolean atspi_device_notify_key (AtspiDevice *device, gboolean pressed, int keycode, int keysym, gint state, gchar *text);

guint atspi_device_add_key_grab (AtspiDevice *device, AtspiKeyDefinition *kd, AtspiKeyCallback callback, void *user_data, GDestroyNotify callback_destroyed);

void atspi_device_remove_key_grab (AtspiDevice *device, guint id);

void atspi_device_add_key_watcher (AtspiDevice *device, AtspiKeyCallback callback, void *user_data, GDestroyNotify callback_destroyed);

AtspiKeyDefinition *atspi_device_get_grab_by_id (AtspiDevice *device, guint id);

guint atspi_device_map_modifier (AtspiDevice *device, gint keycode);

void atspi_device_unmap_modifier (AtspiDevice *device, gint keycode);

guint atspi_device_get_modifier (AtspiDevice *device, gint keycode);

guint atspi_device_get_locked_modifiers (AtspiDevice *device);

gboolean atspi_device_grab_keyboard (AtspiDevice *device);

void atspi_device_ungrab_keyboard (AtspiDevice *device);

G_END_DECLS

#endif	/* _ATSPI_DEVICE_H_ */