gtk/gdk/x11/gdkdevicemanager-x11.c
Jasper St. Pierre 002ac992d1 gdkdevicemanager-x11: Request XI2.3
Since XIQueryVersion, the bad API that it is, enforces the version from
the first client that requests it, for clients to be able to use the new
features in XI2.3, we need to ensure that we pass XIQueryVersion 2.3 as
the version that we support. We know that GTK+ won't be confused by the
new features.

https://bugzilla.gnome.org/show_bug.cgi?id=692467
2013-01-28 12:53:39 -05:00

161 lines
4.9 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
*
* 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/>.
*/
#include "config.h"
#include "gdkx11devicemanager-core.h"
#include "gdkdevicemanagerprivate-core.h"
#ifdef XINPUT_2
#include "gdkx11devicemanager-xi2.h"
#endif
#include "gdkinternals.h"
#include "gdkprivate-x11.h"
/* Defines for VCP/VCK, to be used too
* for the core protocol device manager
*/
#define VIRTUAL_CORE_POINTER_ID 2
#define VIRTUAL_CORE_KEYBOARD_ID 3
GdkDeviceManager *
_gdk_x11_device_manager_new (GdkDisplay *display)
{
if (!g_getenv ("GDK_CORE_DEVICE_EVENTS"))
{
#ifdef XINPUT_2
int opcode, firstevent, firsterror;
Display *xdisplay;
xdisplay = GDK_DISPLAY_XDISPLAY (display);
if (XQueryExtension (xdisplay, "XInputExtension",
&opcode, &firstevent, &firsterror))
{
int major, minor;
major = 2;
minor = 3;
if (!_gdk_disable_multidevice &&
XIQueryVersion (xdisplay, &major, &minor) != BadRequest)
{
GdkX11DeviceManagerXI2 *device_manager_xi2;
GDK_NOTE (INPUT, g_print ("Creating XI2 device manager\n"));
device_manager_xi2 = g_object_new (GDK_TYPE_X11_DEVICE_MANAGER_XI2,
"display", display,
"opcode", opcode,
"major", major,
"minor", minor,
NULL);
return GDK_DEVICE_MANAGER (device_manager_xi2);
}
}
#endif /* XINPUT_2 */
}
GDK_NOTE (INPUT, g_print ("Creating core device manager\n"));
return g_object_new (GDK_TYPE_X11_DEVICE_MANAGER_CORE,
"display", display,
NULL);
}
/**
* gdk_x11_device_manager_lookup:
* @device_manager: a #GdkDeviceManager
* @device_id: a device ID, as understood by the XInput2 protocol
*
* Returns the #GdkDevice that wraps the given device ID.
*
* Returns: (transfer none): (allow-none): The #GdkDevice wrapping the device ID,
* or %NULL if the given ID doesn't currently represent a device.
*
* Since: 3.2
**/
GdkDevice *
gdk_x11_device_manager_lookup (GdkDeviceManager *device_manager,
gint device_id)
{
GdkDevice *device = NULL;
g_return_val_if_fail (GDK_IS_DEVICE_MANAGER (device_manager), NULL);
#ifdef XINPUT_2
if (GDK_IS_X11_DEVICE_MANAGER_XI2 (device_manager))
device = _gdk_x11_device_manager_xi2_lookup (GDK_X11_DEVICE_MANAGER_XI2 (device_manager),
device_id);
else
#endif /* XINPUT_2 */
if (GDK_IS_X11_DEVICE_MANAGER_CORE (device_manager))
{
/* It is a core/xi1 device manager, we only map
* IDs 2 and 3, matching XI2's Virtual Core Pointer
* and Keyboard.
*/
if (device_id == VIRTUAL_CORE_POINTER_ID)
device = GDK_X11_DEVICE_MANAGER_CORE (device_manager)->core_pointer;
else if (device_id == VIRTUAL_CORE_KEYBOARD_ID)
device = GDK_X11_DEVICE_MANAGER_CORE (device_manager)->core_keyboard;
}
return device;
}
/**
* gdk_x11_device_get_id:
* @device: a #GdkDevice
*
* Returns the device ID as seen by XInput2.
*
* <note>
* If gdk_disable_multidevice() has been called, this function
* will respectively return 2/3 for the core pointer and keyboard,
* (matching the IDs for the Virtual Core Pointer and Keyboard in
* XInput 2), but calling this function on any slave devices (i.e.
* those managed via XInput 1.x), will return 0.
* </note>
*
* Returns: the XInput2 device ID.
*
* Since: 3.2
**/
gint
gdk_x11_device_get_id (GdkDevice *device)
{
gint device_id = 0;
g_return_val_if_fail (GDK_IS_DEVICE (device), 0);
#ifdef XINPUT_2
if (GDK_IS_X11_DEVICE_XI2 (device))
device_id = _gdk_x11_device_xi2_get_id (GDK_X11_DEVICE_XI2 (device));
else
#endif /* XINPUT_2 */
if (GDK_IS_X11_DEVICE_CORE (device))
{
if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
device_id = VIRTUAL_CORE_KEYBOARD_ID;
else
device_id = VIRTUAL_CORE_POINTER_ID;
}
return device_id;
}