mutter/clutter/evdev/clutter-evdev.h

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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2012 Intel Corp.
*
* 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 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, see <http://www.gnu.org/licenses/>.
*
*
*/
#ifndef __CLUTTER_EVDEV_H__
#define __CLUTTER_EVDEV_H__
#include <glib.h>
#include <glib-object.h>
#include <xkbcommon/xkbcommon.h>
#include <clutter/clutter.h>
G_BEGIN_DECLS
/**
* ClutterOpenDeviceCallback:
* @path: the device path
* @flags: flags to be passed to open
*
* This callback will be called when Clutter needs to access an input
* device. It should return an open file descriptor for the file at @path,
* or -1 if opening failed.
*/
typedef int (*ClutterOpenDeviceCallback) (const char *path,
int flags,
gpointer user_data,
GError **error);
void clutter_evdev_set_open_callback (ClutterOpenDeviceCallback callback,
gpointer user_data);
void clutter_evdev_release_devices (void);
void clutter_evdev_reclaim_devices (void);
/**
* ClutterPointerConstrainCallback:
* @device: the core pointer device
* @time: the event time in milliseconds
* @x: (inout): the new X coordinate
* @y: (inout): the new Y coordinate
* @user_data:
*
* This callback will be called for all pointer motion events, and should
* update (@x, @y) to constrain the pointer position appropriately.
* The subsequent motion event will use the updated values as the new coordinates.
* Note that the coordinates are not clamped to the stage size, and the callback
* must make sure that this happens before it returns.
* Also note that the event will be emitted even if the pointer is constrained
* to be in the same position.
*/
typedef void (*ClutterPointerConstrainCallback) (ClutterInputDevice *device,
guint32 time,
float *x,
float *y,
gpointer user_data);
void clutter_evdev_set_pointer_constrain_callback (ClutterDeviceManager *evdev,
ClutterPointerConstrainCallback callback,
gpointer user_data,
GDestroyNotify user_data_notify);
void clutter_evdev_set_keyboard_map (ClutterDeviceManager *evdev,
struct xkb_keymap *keymap);
G_END_DECLS
#endif /* __CLUTTER_EVDEV_H__ */