573 lines
16 KiB
C
573 lines
16 KiB
C
/* -*- 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 <string.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 <X11/extensions/XInput2.h>
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#include "gsd-input-helper.h"
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#define INPUT_DEVICES_SCHEMA "org.gnome.settings-daemon.peripherals.input-devices"
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#define KEY_HOTPLUG_COMMAND "hotplug-command"
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typedef gboolean (* InfoIdentifyFunc) (XDeviceInfo *device_info);
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typedef gboolean (* DeviceIdentifyFunc) (XDevice *xdevice);
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gboolean
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device_set_property (XDevice *xdevice,
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const char *device_name,
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PropertyHelper *property)
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{
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int rc, i;
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Atom prop;
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Atom realtype;
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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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prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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property->name, False);
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if (!prop)
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return FALSE;
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gdk_error_trap_push ();
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rc = XGetDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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xdevice, prop, 0, property->nitems, False,
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AnyPropertyType, &realtype, &realformat, &nitems,
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&bytes_after, &data);
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if (rc != Success ||
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realtype != property->type ||
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realformat != property->format ||
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nitems < property->nitems) {
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gdk_error_trap_pop_ignored ();
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g_warning ("Error reading property \"%s\" for \"%s\"", property->name, device_name);
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return FALSE;
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}
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for (i = 0; i < nitems; i++) {
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switch (property->format) {
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case 8:
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data[i] = property->data.c[i];
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break;
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case 32:
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((long*)data)[i] = property->data.i[i];
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break;
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}
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}
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XChangeDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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xdevice, prop, realtype, realformat,
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PropModeReplace, data, nitems);
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XFree (data);
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if (gdk_error_trap_pop ()) {
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g_warning ("Error in setting \"%s\" for \"%s\"", property->name, device_name);
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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supports_xinput_devices_with_opcode (int *opcode)
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{
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gint op_code, event, error;
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gboolean retval;
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retval = 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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if (opcode)
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*opcode = op_code;
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return retval;
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}
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gboolean
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supports_xinput_devices (void)
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{
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return supports_xinput_devices_with_opcode (NULL);
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}
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gboolean
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supports_xtest (void)
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{
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gint op_code, event, error;
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gboolean retval;
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retval = XQueryExtension (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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"XTEST",
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&op_code,
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&event,
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&error);
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return retval;
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}
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gboolean
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supports_xinput2_devices (int *opcode)
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{
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int major, minor;
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if (supports_xinput_devices_with_opcode (opcode) == FALSE)
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return FALSE;
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gdk_error_trap_push ();
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major = 2;
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minor = 3;
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if (XIQueryVersion (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), &major, &minor) != Success) {
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gdk_error_trap_pop_ignored ();
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return FALSE;
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}
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gdk_error_trap_pop_ignored ();
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if ((major * 1000 + minor) < (2000))
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return FALSE;
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return TRUE;
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}
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gboolean
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device_is_touchpad (XDevice *xdevice)
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{
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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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/* we don't check on the type being XI_TOUCHPAD here,
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* but having a "Synaptics Off" property should be enough */
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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 FALSE;
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gdk_error_trap_push ();
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if ((XGetDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), xdevice, 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_ignored ();
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XFree (data);
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return TRUE;
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}
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gdk_error_trap_pop_ignored ();
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return FALSE;
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}
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gboolean
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device_info_is_touchpad (XDeviceInfo *device_info)
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{
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return (device_info->type == XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), XI_TOUCHPAD, False));
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}
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gboolean
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device_info_is_touchscreen (XDeviceInfo *device_info)
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{
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return (device_info->type == XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), XI_TOUCHSCREEN, False));
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}
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gboolean
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device_info_is_tablet (XDeviceInfo *device_info)
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{
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/* Note that this doesn't match Wacom tablets */
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return (device_info->type == XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), XI_TABLET, False));
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}
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gboolean
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device_info_is_mouse (XDeviceInfo *device_info)
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{
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return (device_info->type == XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), XI_MOUSE, False));
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}
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gboolean
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device_info_is_trackball (XDeviceInfo *device_info)
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{
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gboolean retval;
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retval = (device_info->type == XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), XI_TRACKBALL, False));
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if (retval == FALSE &&
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device_info->name != NULL) {
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char *lowercase;
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lowercase = g_ascii_strdown (device_info->name, -1);
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retval = strstr (lowercase, "trackball") != NULL;
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g_free (lowercase);
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}
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return retval;
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}
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static gboolean
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device_type_is_present (InfoIdentifyFunc info_func,
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DeviceIdentifyFunc device_func)
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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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/* Check with the device info first */
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retval = (info_func) (&device_info[i]);
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if (retval == FALSE)
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continue;
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/* If we only have an info func, we're done checking */
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if (device_func == NULL)
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break;
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gdk_error_trap_push ();
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device = XOpenDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device_info[i].id);
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if (gdk_error_trap_pop () || (device == NULL))
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continue;
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retval = (device_func) (device);
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if (retval) {
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XCloseDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device);
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break;
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}
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XCloseDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device);
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}
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XFreeDeviceList (device_info);
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return retval;
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}
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gboolean
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touchscreen_is_present (void)
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{
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return device_type_is_present (device_info_is_touchscreen,
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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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return device_type_is_present (device_info_is_touchpad,
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device_is_touchpad);
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}
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gboolean
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mouse_is_present (void)
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{
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return device_type_is_present (device_info_is_mouse,
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NULL);
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}
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gboolean
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trackball_is_present (void)
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{
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return device_type_is_present (device_info_is_trackball,
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NULL);
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}
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char *
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xdevice_get_device_node (int deviceid)
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{
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Atom prop;
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Atom act_type;
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int act_format;
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unsigned long nitems, bytes_after;
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unsigned char *data;
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char *ret;
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gdk_display_sync (gdk_display_get_default ());
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prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "Device Node", 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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if (!XIGetProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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deviceid, prop, 0, 1000, False,
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AnyPropertyType, &act_type, &act_format,
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&nitems, &bytes_after, &data) == Success) {
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gdk_error_trap_pop_ignored ();
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return NULL;
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}
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if (gdk_error_trap_pop ())
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goto out;
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if (nitems == 0)
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goto out;
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if (act_type != XA_STRING)
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goto out;
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/* Unknown string format */
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if (act_format != 8)
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goto out;
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ret = g_strdup ((char *) data);
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XFree (data);
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return ret;
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out:
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XFree (data);
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return NULL;
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}
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#define TOOL_ID_FORMAT_SIZE 32
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static int
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get_id_for_index (guchar *data,
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guint idx)
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{
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guchar *ptr;
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int id;
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ptr = data;
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ptr += TOOL_ID_FORMAT_SIZE / 8 * idx;
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id = *((int32_t*)ptr);
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id = id & 0xfffff;
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return id;
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}
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#define STYLUS_DEVICE_ID 0x02
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#define ERASER_DEVICE_ID 0x0A
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int
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xdevice_get_last_tool_id (int deviceid)
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{
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Atom prop;
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Atom act_type;
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int act_format;
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unsigned long nitems, bytes_after;
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unsigned char *data;
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int id;
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id = -1;
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gdk_display_sync (gdk_display_get_default ());
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prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), WACOM_SERIAL_IDS_PROP, False);
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if (!prop)
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return -1;
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data = NULL;
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gdk_error_trap_push ();
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if (XIGetProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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deviceid, prop, 0, 1000, False,
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AnyPropertyType, &act_type, &act_format,
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&nitems, &bytes_after, &data) != Success) {
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gdk_error_trap_pop_ignored ();
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goto out;
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}
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if (gdk_error_trap_pop ())
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goto out;
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if (nitems != 4 && nitems != 5)
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goto out;
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if (act_type != XA_INTEGER)
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goto out;
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if (act_format != TOOL_ID_FORMAT_SIZE)
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goto out;
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/* item 0 = tablet ID
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* item 1 = old device serial number (== last tool in proximity)
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* item 2 = old hardware serial number (including tool ID)
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* item 3 = current serial number (0 if no tool in proximity)
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* item 4 = current tool ID (since Feb 2012)
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*
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* Get the current tool ID first, if available, then the old one */
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id = 0x0;
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if (nitems == 5)
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id = get_id_for_index (data, 4);
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if (id == 0x0)
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id = get_id_for_index (data, 2);
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/* That means that no tool was set down yet */
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if (id == STYLUS_DEVICE_ID ||
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id == ERASER_DEVICE_ID)
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id = 0x0;
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out:
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if (data != NULL)
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XFree (data);
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return id;
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}
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gboolean
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set_device_enabled (int device_id,
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gboolean enabled)
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{
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Atom prop;
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guchar value;
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prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "Device Enabled", False);
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if (!prop)
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return FALSE;
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gdk_error_trap_push ();
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value = enabled ? 1 : 0;
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XIChangeProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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device_id, prop, XA_INTEGER, 8, PropModeReplace, &value, 1);
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if (gdk_error_trap_pop ())
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return FALSE;
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return TRUE;
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}
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static const char *
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custom_command_to_string (CustomCommand command)
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{
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switch (command) {
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case COMMAND_DEVICE_ADDED:
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return "added";
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case COMMAND_DEVICE_REMOVED:
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return "removed";
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case COMMAND_DEVICE_PRESENT:
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return "present";
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default:
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g_assert_not_reached ();
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}
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}
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/* Run a custom command on device presence events. Parameters passed into
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* the custom command are:
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* command -t [added|removed|present] -i <device ID> <device name>
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* Type 'added' and 'removed' signal 'device added' and 'device removed',
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* respectively. Type 'present' signals 'device present at
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* gnome-settings-daemon init'.
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*
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* The script is expected to run synchronously, and an exit value
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* of "1" means that no other settings will be applied to this
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* particular device.
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*
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* More options may be added in the future.
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*
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* This function returns TRUE if we should not apply any more settings
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* to the device.
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*/
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gboolean
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run_custom_command (GdkDevice *device,
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CustomCommand command)
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{
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GSettings *settings;
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char *cmd;
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char *argv[7];
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int exit_status;
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gboolean rc;
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int id;
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settings = g_settings_new (INPUT_DEVICES_SCHEMA);
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cmd = g_settings_get_string (settings, KEY_HOTPLUG_COMMAND);
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g_object_unref (settings);
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if (!cmd || cmd[0] == '\0') {
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g_free (cmd);
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return FALSE;
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}
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/* Easter egg! */
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g_object_get (device, "device-id", &id, NULL);
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argv[0] = cmd;
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argv[1] = "-t";
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argv[2] = (char *) custom_command_to_string (command);
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argv[3] = "-i";
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argv[4] = g_strdup_printf ("%d", id);
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argv[5] = (char*) gdk_device_get_name (device);
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argv[6] = NULL;
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rc = g_spawn_sync (g_get_home_dir (), argv, NULL, G_SPAWN_SEARCH_PATH,
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NULL, NULL, NULL, NULL, &exit_status, NULL);
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if (rc == FALSE)
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g_warning ("Couldn't execute command '%s', verify that this is a valid command.", cmd);
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g_free (argv[0]);
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g_free (argv[4]);
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return (exit_status == 1);
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}
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GList *
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get_disabled_devices (GdkDeviceManager *manager)
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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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GList *ret;
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ret = NULL;
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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 ret;
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for (i = 0; i < n_devices; i++) {
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GdkDevice *device;
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/* Ignore core devices */
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if (device_info[i].use == IsXKeyboard ||
|
|
device_info[i].use == IsXPointer)
|
|
continue;
|
|
|
|
/* Check whether the device is actually available */
|
|
device = gdk_x11_device_manager_lookup (manager, device_info[i].id);
|
|
if (device != NULL)
|
|
continue;
|
|
|
|
ret = g_list_prepend (ret, GINT_TO_POINTER (device_info[i].id));
|
|
}
|
|
|
|
XFreeDeviceList (device_info);
|
|
|
|
return ret;
|
|
}
|