110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
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*
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* Copyright (C) 2010 Bastien Nocera <hadess@hadess.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#include "config.h"
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#include <gdk/gdk.h>
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#include <gdk/gdkx.h>
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#include <sys/types.h>
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#include <X11/Xatom.h>
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#include "gsd-input-helper.h"
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static gboolean
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supports_xinput_devices (void)
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{
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gint op_code, event, error;
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return XQueryExtension (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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"XInputExtension",
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&op_code,
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&event,
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&error);
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}
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XDevice*
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device_is_touchpad (XDeviceInfo deviceinfo)
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{
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XDevice *device;
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Atom realtype, prop;
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int realformat;
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unsigned long nitems, bytes_after;
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unsigned char *data;
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if (deviceinfo.type != XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), XI_TOUCHPAD, False))
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return NULL;
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prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "Synaptics Off", False);
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if (!prop)
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return NULL;
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gdk_error_trap_push ();
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device = XOpenDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), deviceinfo.id);
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if (gdk_error_trap_pop () || (device == NULL))
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return NULL;
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gdk_error_trap_push ();
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if ((XGetDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device, prop, 0, 1, False,
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XA_INTEGER, &realtype, &realformat, &nitems,
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&bytes_after, &data) == Success) && (realtype != None)) {
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gdk_error_trap_pop ();
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XFree (data);
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return device;
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}
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gdk_error_trap_pop ();
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XCloseDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device);
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return NULL;
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}
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gboolean
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touchpad_is_present (void)
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{
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XDeviceInfo *device_info;
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gint n_devices;
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guint i;
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gboolean retval;
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if (supports_xinput_devices () == FALSE)
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return TRUE;
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retval = FALSE;
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device_info = XListInputDevices (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), &n_devices);
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if (device_info == NULL)
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return FALSE;
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for (i = 0; i < n_devices; i++) {
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XDevice *device;
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device = device_is_touchpad (device_info[i]);
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if (device != NULL) {
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retval = TRUE;
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break;
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}
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}
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if (device_info != NULL)
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XFreeDeviceList (device_info);
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return retval;
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}
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