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f90c154472
This function can be used to find out the XInput2 device ID behind a GdkDevice, mostly useful when you need to interact with say Clutter, or raw libXi calls.
131 lines
3.9 KiB
C
131 lines
3.9 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "gdkx11devicemanager-core.h"
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#ifdef XINPUT_XFREE
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#include "gdkx11devicemanager-xi.h"
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#ifdef XINPUT_2
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#include "gdkx11devicemanager-xi2.h"
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#endif
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#endif
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#include "gdkinternals.h"
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#include "gdkprivate-x11.h"
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/* Defines for VCP/VCK, to be used too
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* for the core protocol device manager
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*/
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#define VIRTUAL_CORE_POINTER_ID 2
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#define VIRTUAL_CORE_KEYBOARD_ID 3
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GdkDeviceManager *
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_gdk_x11_device_manager_new (GdkDisplay *display)
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{
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if (!g_getenv ("GDK_CORE_DEVICE_EVENTS"))
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{
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#if defined (XINPUT_2) || defined (XINPUT_XFREE)
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int opcode, firstevent, firsterror;
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Display *xdisplay;
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xdisplay = GDK_DISPLAY_XDISPLAY (display);
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if (XQueryExtension (xdisplay, "XInputExtension",
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&opcode, &firstevent, &firsterror))
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{
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#ifdef XINPUT_2
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int major, minor;
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major = 2;
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minor = 0;
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if (!_gdk_disable_multidevice &&
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XIQueryVersion (xdisplay, &major, &minor) != BadRequest)
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{
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GdkX11DeviceManagerXI2 *device_manager_xi2;
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GDK_NOTE (INPUT, g_print ("Creating XI2 device manager\n"));
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device_manager_xi2 = g_object_new (GDK_TYPE_X11_DEVICE_MANAGER_XI2,
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"display", display,
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"opcode", opcode,
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NULL);
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return GDK_DEVICE_MANAGER (device_manager_xi2);
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}
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else
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#endif /* XINPUT_2 */
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{
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GDK_NOTE (INPUT, g_print ("Creating XI device manager\n"));
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return g_object_new (GDK_TYPE_X11_DEVICE_MANAGER_XI,
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"display", display,
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"event-base", firstevent,
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NULL);
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}
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}
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#endif /* XINPUT_2 || XINPUT_XFREE */
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}
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GDK_NOTE (INPUT, g_print ("Creating core device manager\n"));
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return g_object_new (GDK_TYPE_X11_DEVICE_MANAGER_CORE,
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"display", display,
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NULL);
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}
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/**
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* gdk_x11_device_get_id:
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* @device: a #GdkDevice
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*
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* Returns the device ID as seen by XInput2.
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*
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* <note>
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* If gdk_disable_multidevice() has been called, this function
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* will respectively return 2/3 for the core pointer and keyboard,
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* (matching the IDs for the Virtual Core Pointer and Keyboard in
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* XInput 2), but calling this function on any slave devices (i.e.
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* those managed via XInput 1.x), will return 0.
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* </note>
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*
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* Returns: the XInput2 device ID.
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**/
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gint
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gdk_x11_device_get_id (GdkDevice *device)
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{
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gint device_id = 0;
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g_return_val_if_fail (GDK_IS_DEVICE (device), 0);
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#ifdef XINPUT_2
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if (GDK_IS_X11_DEVICE_XI2 (device))
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device_id = _gdk_x11_device_xi2_get_id (GDK_X11_DEVICE_XI2 (device));
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else
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#endif /* XINPUT_2 */
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if (GDK_IS_X11_DEVICE_CORE (device))
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{
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if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
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device_id = VIRTUAL_CORE_KEYBOARD_ID;
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else
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device_id = VIRTUAL_CORE_POINTER_ID;
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}
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return device_id;
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}
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