/*
* Copyright (C) 2019 Red Hat Inc.
*
* 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/>.
*
* Author: Carlos Garnacho <carlosg@gnome.org>
*/
#include "config.h"
#include <linux/input-event-codes.h>
#include <X11/extensions/XInput2.h>
#include <X11/extensions/XKB.h>
#ifdef HAVE_LIBGUDEV
#include <gudev/gudev.h>
#endif
#include "backends/meta-input-settings-private.h"
#include "backends/x11/meta-backend-x11.h"
#include "backends/x11/meta-clutter-backend-x11.h"
#include "backends/x11/meta-event-x11.h"
#include "backends/x11/meta-input-device-tool-x11.h"
#include "backends/x11/meta-input-device-x11.h"
#include "backends/x11/meta-keymap-x11.h"
#include "backends/x11/meta-stage-x11.h"
#include "backends/x11/meta-virtual-input-device-x11.h"
#include "backends/x11/meta-xkb-a11y-x11.h"
#include "clutter/clutter-mutter.h"
#include "core/bell.h"
#include "meta-seat-x11.h"
#include "mtk/mtk-x11.h"
enum
{
PROP_0,
PROP_BACKEND,
PROP_OPCODE,
PROP_POINTER_ID,
PROP_KEYBOARD_ID,
N_PROPS,
/* This property is overridden */
PROP_TOUCH_MODE,
};
typedef struct _MetaTouchInfo MetaTouchInfo;
struct _MetaTouchInfo
{
ClutterEventSequence *sequence;
double x;
double y;
};
struct _MetaSeatX11
{
ClutterSeat parent_instance;
MetaBackend *backend;
ClutterInputDevice *core_pointer;
ClutterInputDevice *core_keyboard;
GList *devices;
GHashTable *devices_by_id;
GHashTable *tools_by_serial;
GHashTable *touch_coords;
MetaKeymapX11 *keymap;
#ifdef HAVE_LIBGUDEV
GUdevClient *udev_client;
#endif
int pointer_id;
int keyboard_id;
int opcode;
ClutterGrabState grab_state;
guint has_touchscreens : 1;
guint touch_mode : 1;
guint has_pointer_focus : 1;
};
static GParamSpec *props[N_PROPS] = { 0 };
G_DEFINE_TYPE (MetaSeatX11, meta_seat_x11, CLUTTER_TYPE_SEAT)
static const char *clutter_input_axis_atom_names[] = {
"Abs X", /* CLUTTER_INPUT_AXIS_X */
"Abs Y", /* CLUTTER_INPUT_AXIS_Y */
"Abs Pressure", /* CLUTTER_INPUT_AXIS_PRESSURE */
"Abs Tilt X", /* CLUTTER_INPUT_AXIS_XTILT */
"Abs Tilt Y", /* CLUTTER_INPUT_AXIS_YTILT */
"Abs Wheel", /* CLUTTER_INPUT_AXIS_WHEEL */
"Abs Distance", /* CLUTTER_INPUT_AXIS_DISTANCE */
};
static const char *wacom_type_atoms[] = {
"STYLUS",
"CURSOR",
"ERASER",
"PAD",
"TOUCH"
};
#define N_WACOM_TYPE_ATOMS G_N_ELEMENTS (wacom_type_atoms)
enum
{
WACOM_TYPE_STYLUS,
WACOM_TYPE_CURSOR,
WACOM_TYPE_ERASER,
WACOM_TYPE_PAD,
WACOM_TYPE_TOUCH,
};
enum
{
PAD_AXIS_FIRST = 3, /* First axes are always x/y/pressure, ignored in pads */
PAD_AXIS_STRIP1 = PAD_AXIS_FIRST,
PAD_AXIS_STRIP2,
PAD_AXIS_RING1,
PAD_AXIS_RING2,
};
#define N_AXIS_ATOMS G_N_ELEMENTS (clutter_input_axis_atom_names)
static Atom clutter_input_axis_atoms[N_AXIS_ATOMS] = { 0, };
static Display *
xdisplay_from_seat (MetaSeatX11 *seat_x11)
{
return meta_backend_x11_get_xdisplay (META_BACKEND_X11 (seat_x11->backend));
}
static Window
root_xwindow_from_seat (MetaSeatX11 *seat_x11)
{
MetaBackendX11 *backend_x11 = META_BACKEND_X11 (seat_x11->backend);
return meta_backend_x11_get_root_xwindow (backend_x11);
}
static void
translate_valuator_class (Display *xdisplay,
ClutterInputDevice *device,
XIValuatorClassInfo *class)
{
static gboolean atoms_initialized = FALSE;
ClutterInputAxis i, axis = CLUTTER_INPUT_AXIS_IGNORE;
if (G_UNLIKELY (!atoms_initialized))
{
XInternAtoms (xdisplay,
(char **) clutter_input_axis_atom_names, N_AXIS_ATOMS,
False,
clutter_input_axis_atoms);
atoms_initialized = TRUE;
}
for (i = 0;
i < N_AXIS_ATOMS;
i += 1)
{
if (clutter_input_axis_atoms[i] == class->label)
{
axis = i + 1;
break;
}
}
meta_input_device_x11_add_axis (device, axis,
class->min,
class->max,
class->resolution);
g_debug ("Added axis '%s' (min:%.2f, max:%.2fd, res:%d) of device %d",
axis == CLUTTER_INPUT_AXIS_IGNORE ?
"Ignored" :
clutter_input_axis_atom_names[axis - 1],
class->min,
class->max,
class->resolution,
meta_input_device_x11_get_device_id (device));
}
static void
translate_device_classes (Display *xdisplay,
ClutterInputDevice *device,
XIAnyClassInfo **classes,
int n_classes)
{
int i;
for (i = 0; i < n_classes; i++)
{
XIAnyClassInfo *class_info = classes[i];
switch (class_info->type)
{
case XIValuatorClass:
translate_valuator_class (xdisplay, device,
(XIValuatorClassInfo *) class_info);
break;
case XIScrollClass:
{
XIScrollClassInfo *scroll_info = (XIScrollClassInfo *) class_info;
ClutterScrollDirection direction;
if (scroll_info->scroll_type == XIScrollTypeVertical)
direction = CLUTTER_SCROLL_DOWN;
else
direction = CLUTTER_SCROLL_RIGHT;
g_debug ("Scroll valuator %d: %s, increment: %f",
scroll_info->number,
scroll_info->scroll_type == XIScrollTypeVertical
? "vertical"
: "horizontal",
scroll_info->increment);
meta_input_device_x11_add_scroll_info (device,
scroll_info->number,
direction,
scroll_info->increment);
}
break;
default:
break;
}
}
}
static gboolean
is_touch_device (XIAnyClassInfo **classes,
int n_classes,
ClutterInputDeviceType *device_type,
ClutterInputCapabilities *capabilities,
uint32_t *n_touch_points)
{
int i;
for (i = 0; i < n_classes; i++)
{
XITouchClassInfo *class = (XITouchClassInfo *) classes[i];
if (class->type != XITouchClass)
continue;
if (class->num_touches > 0)
{
if (class->mode == XIDirectTouch)
{
*device_type = CLUTTER_TOUCHSCREEN_DEVICE;
*capabilities = CLUTTER_INPUT_CAPABILITY_TOUCH;
}
else if (class->mode == XIDependentTouch)
{
*device_type = CLUTTER_TOUCHPAD_DEVICE;
*capabilities =
CLUTTER_INPUT_CAPABILITY_POINTER |
CLUTTER_INPUT_CAPABILITY_TOUCHPAD;
}
else
{
continue;
}
*n_touch_points = class->num_touches;
return TRUE;
}
}
return FALSE;
}
static gboolean
is_touchpad_device (MetaSeatX11 *seat_x11,
XIDeviceInfo *info)
{
Display *xdisplay = xdisplay_from_seat (seat_x11);
gulong nitems, bytes_after;
uint32_t *data = NULL;
int rc, format;
Atom type;
Atom prop;
prop = XInternAtom (xdisplay,
"libinput Tapping Enabled", True);
if (prop == None)
return FALSE;
mtk_x11_error_trap_push (xdisplay);
rc = XIGetProperty (xdisplay,
info->deviceid,
prop,
0, 1, False, XA_INTEGER, &type, &format, &nitems, &bytes_after,
(guchar **) &data);
mtk_x11_error_trap_pop (xdisplay);
/* We don't care about the data */
XFree (data);
if (rc != Success || type != XA_INTEGER || format != 8 || nitems != 1)
return FALSE;
return TRUE;
}
static gboolean
get_device_ids (MetaSeatX11 *seat_x11,
XIDeviceInfo *info,
char **vendor_id,
char **product_id)
{
Display *xdisplay = xdisplay_from_seat (seat_x11);
gulong nitems, bytes_after;
uint32_t *data = NULL;
int rc, format;
Atom type;
mtk_x11_error_trap_push (xdisplay);
rc = XIGetProperty (xdisplay,
info->deviceid,
XInternAtom (xdisplay, "Device Product ID", False),
0, 2, False, XA_INTEGER, &type, &format, &nitems, &bytes_after,
(guchar **) &data);
mtk_x11_error_trap_pop (xdisplay);
if (rc != Success || type != XA_INTEGER || format != 32 || nitems != 2)
{
XFree (data);
return FALSE;
}
if (vendor_id)
*vendor_id = g_strdup_printf ("%.4x", data[0]);
if (product_id)
*product_id = g_strdup_printf ("%.4x", data[1]);
XFree (data);
return TRUE;
}
static char *
get_device_node_path (MetaSeatX11 *seat_x11,
XIDeviceInfo *info)
{
Display *xdisplay = xdisplay_from_seat (seat_x11);
gulong nitems, bytes_after;
guchar *data;
int rc, format;
Atom prop, type;
char *node_path;
prop = XInternAtom (xdisplay, "Device Node", False);
if (prop == None)
return NULL;
mtk_x11_error_trap_push (xdisplay);
rc = XIGetProperty (xdisplay,
info->deviceid, prop, 0, 1024, False,
XA_STRING, &type, &format, &nitems, &bytes_after,
(guchar **) &data);
if (mtk_x11_error_trap_pop_with_return (xdisplay))
return NULL;
if (rc != Success || type != XA_STRING || format != 8)
{
XFree (data);
return FALSE;
}
node_path = g_strdup ((char *) data);
XFree (data);
return node_path;
}
static void
get_pad_features (XIDeviceInfo *info,
uint32_t *n_rings,
uint32_t *n_strips)
{
int i, rings = 0, strips = 0;
for (i = PAD_AXIS_FIRST; i < info->num_classes; i++)
{
XIValuatorClassInfo *valuator = (XIValuatorClassInfo*) info->classes[i];
int axis = valuator->number;
if (valuator->type != XIValuatorClass)
continue;
if (valuator->max <= 1)
continue;
/* Ring/strip axes are fixed in pad devices as handled by the
* wacom driver. Match those to detect pad features.
*/
if (axis == PAD_AXIS_STRIP1 || axis == PAD_AXIS_STRIP2)
strips++;
else if (axis == PAD_AXIS_RING1 || axis == PAD_AXIS_RING2)
rings++;
}
*n_rings = rings;
*n_strips = strips;
}
/* The Wacom driver exports the tool type as property. Use that over
guessing based on the device name */
static gboolean
guess_source_from_wacom_type (MetaSeatX11 *seat_x11,
XIDeviceInfo *info,
ClutterInputDeviceType *source_out,
ClutterInputCapabilities *capabilities_out)
{
Display *xdisplay = xdisplay_from_seat (seat_x11);
gulong nitems, bytes_after;
uint32_t *data = NULL;
int rc, format;
Atom type;
Atom prop;
Atom device_type;
Atom types[N_WACOM_TYPE_ATOMS];
prop = XInternAtom (xdisplay, "Wacom Tool Type", True);
if (prop == None)
return FALSE;
mtk_x11_error_trap_push (xdisplay);
rc = XIGetProperty (xdisplay,
info->deviceid,
prop,
0, 1, False, XA_ATOM, &type, &format, &nitems, &bytes_after,
(guchar **) &data);
mtk_x11_error_trap_pop (xdisplay);
if (rc != Success || type != XA_ATOM || format != 32 || nitems != 1)
{
XFree (data);
return FALSE;
}
device_type = *data;
XFree (data);
if (device_type == 0)
return FALSE;
rc = XInternAtoms (xdisplay,
(char **)wacom_type_atoms,
N_WACOM_TYPE_ATOMS,
False,
types);
if (rc == 0)
return FALSE;
if (device_type == types[WACOM_TYPE_STYLUS])
{
*source_out = CLUTTER_PEN_DEVICE;
*capabilities_out = CLUTTER_INPUT_CAPABILITY_TABLET_TOOL;
}
else if (device_type == types[WACOM_TYPE_CURSOR])
{
*source_out = CLUTTER_CURSOR_DEVICE;
*capabilities_out = CLUTTER_INPUT_CAPABILITY_TABLET_TOOL;
}
else if (device_type == types[WACOM_TYPE_ERASER])
{
*source_out = CLUTTER_ERASER_DEVICE;
*capabilities_out = CLUTTER_INPUT_CAPABILITY_TABLET_TOOL;
}
else if (device_type == types[WACOM_TYPE_PAD])
{
*source_out = CLUTTER_PAD_DEVICE;
*capabilities_out = CLUTTER_INPUT_CAPABILITY_TABLET_PAD;
}
else if (device_type == types[WACOM_TYPE_TOUCH])
{
uint32_t num_touches = 0;
if (!is_touch_device (info->classes, info->num_classes,
source_out, capabilities_out, &num_touches))
{
*source_out = CLUTTER_TOUCHSCREEN_DEVICE;
*capabilities_out = CLUTTER_INPUT_CAPABILITY_TOUCH;
}
}
else
{
return FALSE;
}
return TRUE;
}
#ifdef HAVE_LIBGUDEV
static gboolean
has_udev_property (GUdevDevice *udev_device,
const char *property_name)
{
g_autoptr (GUdevDevice) parent_udev_device = NULL;
if (NULL != g_udev_device_get_property (udev_device, property_name))
return TRUE;
parent_udev_device = g_udev_device_get_parent (udev_device);
if (!parent_udev_device)
return FALSE;
return g_udev_device_get_property (parent_udev_device, property_name) != NULL;
}
#endif
static ClutterInputDevice *
create_device (MetaSeatX11 *seat_x11,
ClutterBackend *clutter_backend,
XIDeviceInfo *info)
{
Display *xdisplay = xdisplay_from_seat (seat_x11);
ClutterInputDeviceType source, touch_source;
ClutterInputCapabilities capabilities = 0;
ClutterInputDevice *retval;
ClutterInputMode mode;
uint32_t num_touches = 0, num_rings = 0, num_strips = 0;
char *vendor_id = NULL, *product_id = NULL, *node_path = NULL;
if (info->use == XIMasterKeyboard || info->use == XISlaveKeyboard)
{
source = CLUTTER_KEYBOARD_DEVICE;
capabilities = CLUTTER_INPUT_CAPABILITY_KEYBOARD;
}
else if (is_touchpad_device (seat_x11, info))
{
source = CLUTTER_TOUCHPAD_DEVICE;
}
else if (info->use == XISlavePointer &&
is_touch_device (info->classes, info->num_classes,
&touch_source, &capabilities,
&num_touches))
{
source = touch_source;
}
else if (!guess_source_from_wacom_type (seat_x11, info, &source, &capabilities))
{
char *name;
name = g_ascii_strdown (info->name, -1);
if (strstr (name, "eraser") != NULL)
{
source = CLUTTER_ERASER_DEVICE;
capabilities = CLUTTER_INPUT_CAPABILITY_TABLET_TOOL;
}
else if (strstr (name, "cursor") != NULL)
{
source = CLUTTER_CURSOR_DEVICE;
capabilities = CLUTTER_INPUT_CAPABILITY_TABLET_TOOL;
}
else if (strstr (name, " pad") != NULL)
{
source = CLUTTER_PAD_DEVICE;
capabilities = CLUTTER_INPUT_CAPABILITY_TABLET_PAD;
}
else if (strstr (name, "wacom") != NULL || strstr (name, "pen") != NULL)
{
source = CLUTTER_PEN_DEVICE;
capabilities = CLUTTER_INPUT_CAPABILITY_TABLET_TOOL;
}
else if (strstr (name, "touchpad") != NULL)
{
source = CLUTTER_TOUCHPAD_DEVICE;
capabilities =
CLUTTER_INPUT_CAPABILITY_POINTER |
CLUTTER_INPUT_CAPABILITY_TOUCHPAD;
}
else
{
source = CLUTTER_POINTER_DEVICE;
capabilities = CLUTTER_INPUT_CAPABILITY_POINTER;
}
g_free (name);
}
switch (info->use)
{
case XIMasterKeyboard:
case XIMasterPointer:
mode = CLUTTER_INPUT_MODE_LOGICAL;
break;
case XISlaveKeyboard:
case XISlavePointer:
mode = CLUTTER_INPUT_MODE_PHYSICAL;
break;
case XIFloatingSlave:
default:
mode = CLUTTER_INPUT_MODE_FLOATING;
break;
}
if (info->use != XIMasterKeyboard &&
info->use != XIMasterPointer)
{
get_device_ids (seat_x11, info, &vendor_id, &product_id);
node_path = get_device_node_path (seat_x11, info);
}
#ifdef HAVE_LIBGUDEV
if (node_path)
{
g_autoptr (GUdevDevice) udev_device = NULL;
udev_device = g_udev_client_query_by_device_file (seat_x11->udev_client,
node_path);
if (udev_device)
{
if (has_udev_property (udev_device, "ID_INPUT_TRACKBALL"))
capabilities |= CLUTTER_INPUT_CAPABILITY_TRACKBALL;
if (has_udev_property (udev_device, "ID_INPUT_POINTINGSTICK"))
capabilities |= CLUTTER_INPUT_CAPABILITY_TRACKPOINT;
}
}
#endif
if (source == CLUTTER_PAD_DEVICE)
get_pad_features (info, &num_rings, &num_strips);
retval = g_object_new (META_TYPE_INPUT_DEVICE_X11,
"backend", seat_x11->backend,
"name", info->name,
"id", info->deviceid,
"has-cursor", (info->use == XIMasterPointer),
"device-type", source,
"capabilities", capabilities,
"device-mode", mode,
"vendor-id", vendor_id,
"product-id", product_id,
"device-node", node_path,
"n-rings", num_rings,
"n-strips", num_strips,
"n-mode-groups", MAX (num_rings, num_strips),
"seat", seat_x11,
NULL);
translate_device_classes (xdisplay, retval,
info->classes,
info->num_classes);
g_free (vendor_id);
g_free (product_id);
g_free (node_path);
g_debug ("Created device '%s' (id: %d, has-cursor: %s)",
info->name,
info->deviceid,
info->use == XIMasterPointer ? "yes" : "no");
return retval;
}
static void
pad_passive_button_grab (MetaSeatX11 *seat_x11,
ClutterInputDevice *device)
{
Display *xdisplay = xdisplay_from_seat (seat_x11);
Window root_xwindow = root_xwindow_from_seat (seat_x11);
XIGrabModifiers xi_grab_mods = { XIAnyModifier, };
XIEventMask xi_event_mask;
int device_id, rc;
device_id = meta_input_device_x11_get_device_id (device);
xi_event_mask.deviceid = device_id;
xi_event_mask.mask_len = XIMaskLen (XI_LASTEVENT);
xi_event_mask.mask = g_new0 (unsigned char, xi_event_mask.mask_len);
XISetMask (xi_event_mask.mask, XI_Motion);
XISetMask (xi_event_mask.mask, XI_ButtonPress);
XISetMask (xi_event_mask.mask, XI_ButtonRelease);
mtk_x11_error_trap_push (xdisplay);
rc = XIGrabButton (xdisplay,
device_id, XIAnyButton,
root_xwindow, None,
XIGrabModeSync, XIGrabModeSync,
True, &xi_event_mask, 1, &xi_grab_mods);
if (rc != 0)
{
g_warning ("Could not passively grab pad device: %s",
clutter_input_device_get_device_name (device));
}
else
{
XIAllowEvents (xdisplay, device_id, XIAsyncDevice, CLUTTER_CURRENT_TIME);
}
mtk_x11_error_trap_pop (xdisplay);
g_free (xi_event_mask.mask);
}
static void
update_touch_mode (MetaSeatX11 *seat_x11)
{
gboolean touch_mode;
touch_mode = seat_x11->has_touchscreens;
if (seat_x11->touch_mode == touch_mode)
return;
seat_x11->touch_mode = touch_mode;
g_object_notify (G_OBJECT (seat_x11), "touch-mode");
}
static ClutterInputDevice *
add_device (MetaSeatX11 *seat_x11,
ClutterBackend *clutter_backend,
XIDeviceInfo *info)
{
ClutterInputDevice *device;
device = create_device (seat_x11, clutter_backend, info);
g_hash_table_replace (seat_x11->devices_by_id,
GINT_TO_POINTER (info->deviceid),
device);
if (info->use == XIMasterPointer &&
info->deviceid == seat_x11->pointer_id)
{
seat_x11->core_pointer = device;
}
else if (info->use == XIMasterKeyboard &&
info->deviceid == seat_x11->keyboard_id)
{
seat_x11->core_keyboard = device;
}
else if ((info->use == XISlavePointer &&
info->attachment == seat_x11->pointer_id) ||
(info->use == XISlaveKeyboard &&
info->attachment == seat_x11->keyboard_id))
{
seat_x11->devices = g_list_prepend (seat_x11->devices, device);
}
else
{
g_warning ("Unhandled device: %s",
clutter_input_device_get_device_name (device));
}
if (clutter_input_device_get_device_type (device) == CLUTTER_PAD_DEVICE)
pad_passive_button_grab (seat_x11, device);
return device;
}
static gboolean
has_touchscreens (MetaSeatX11 *seat_x11)
{
GList *l;
for (l = seat_x11->devices; l; l = l->next)
{
if (clutter_input_device_get_device_type (l->data) == CLUTTER_TOUCHSCREEN_DEVICE)
return TRUE;
}
return FALSE;
}
static void
remove_device (MetaSeatX11 *seat_x11,
ClutterInputDevice *device)
{
if (seat_x11->core_pointer == device)
{
seat_x11->core_pointer = NULL;
}
else if (seat_x11->core_keyboard == device)
{
seat_x11->core_keyboard = NULL;
}
else
{
seat_x11->devices = g_list_remove (seat_x11->devices, device);
}
}
static gboolean
meta_seat_x11_handle_event_post (ClutterSeat *seat,
const ClutterEvent *event)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
ClutterInputDevice *device;
MetaInputSettings *input_settings;
ClutterEventType event_type;
gboolean is_touch;
event_type = clutter_event_type (event);
if (event_type != CLUTTER_DEVICE_ADDED &&
event_type != CLUTTER_DEVICE_REMOVED)
return TRUE;
device = clutter_event_get_device (event);
is_touch =
clutter_input_device_get_device_type (device) == CLUTTER_TOUCHSCREEN_DEVICE;
input_settings = meta_backend_get_input_settings (seat_x11->backend);
switch (event_type)
{
case CLUTTER_DEVICE_ADDED:
meta_input_settings_add_device (input_settings, device);
seat_x11->has_touchscreens |= is_touch;
break;
case CLUTTER_DEVICE_REMOVED:
if (is_touch)
seat_x11->has_touchscreens = has_touchscreens (seat_x11);
meta_input_settings_remove_device (input_settings, device);
break;
default:
break;
}
if (is_touch)
update_touch_mode (seat_x11);
return TRUE;
}
static uint
device_get_tool_serial (MetaSeatX11 *seat_x11,
ClutterInputDevice *device)
{
Display *xdisplay = xdisplay_from_seat (seat_x11);
gulong nitems, bytes_after;
uint32_t *data = NULL;
int serial_id = 0;
int rc, format;
Atom type;
Atom prop;
prop = XInternAtom (xdisplay, "Wacom Serial IDs", True);
if (prop == None)
return 0;
mtk_x11_error_trap_push (xdisplay);
rc = XIGetProperty (xdisplay,
meta_input_device_x11_get_device_id (device),
prop, 0, 4, FALSE, XA_INTEGER, &type, &format, &nitems, &bytes_after,
(guchar **) &data);
mtk_x11_error_trap_pop (xdisplay);
if (rc == Success && type == XA_INTEGER && format == 32 && nitems >= 4)
serial_id = data[3];
XFree (data);
return serial_id;
}
static ClutterEvent *
translate_hierarchy_event (ClutterBackend *clutter_backend,
MetaSeatX11 *seat_x11,
XIHierarchyEvent *ev)
{
Display *xdisplay = xdisplay_from_seat (seat_x11);
int i;
ClutterEvent *event = NULL;
for (i = 0; i < ev->num_info; i++)
{
if (ev->info[i].flags & XIDeviceEnabled &&
!g_hash_table_lookup (seat_x11->devices_by_id,
GINT_TO_POINTER (ev->info[i].deviceid)))
{
XIDeviceInfo *info;
int n_devices;
g_debug ("Hierarchy event: device enabled");
mtk_x11_error_trap_push (xdisplay);
info = XIQueryDevice (xdisplay,
ev->info[i].deviceid,
&n_devices);
mtk_x11_error_trap_pop (xdisplay);
if (info != NULL)
{
ClutterInputDevice *device;
device = add_device (seat_x11, clutter_backend, &info[0]);
event = clutter_event_device_notify_new (CLUTTER_DEVICE_ADDED,
CLUTTER_EVENT_NONE,
ms2us (ev->time),
device);
XIFreeDeviceInfo (info);
}
}
else if (ev->info[i].flags & XIDeviceDisabled)
{
g_autoptr (ClutterInputDevice) device = NULL;
g_debug ("Hierarchy event: device disabled");
g_hash_table_steal_extended (seat_x11->devices_by_id,
GINT_TO_POINTER (ev->info[i].deviceid),
NULL,
(gpointer) &device);
if (device != NULL)
{
remove_device (seat_x11, device);
event = clutter_event_device_notify_new (CLUTTER_DEVICE_REMOVED,
CLUTTER_EVENT_NONE,
ms2us (ev->time),
device);
}
}
else if ((ev->info[i].flags & XISlaveAttached) ||
(ev->info[i].flags & XISlaveDetached))
{
g_debug ("Hierarchy event: physical device %s",
(ev->info[i].flags & XISlaveAttached)
? "attached"
: "detached");
}
}
return event;
}
static void
translate_property_event (MetaSeatX11 *seat_x11,
XIEvent *event)
{
Display *xdisplay = xdisplay_from_seat (seat_x11);
XIPropertyEvent *xev = (XIPropertyEvent *) event;
Atom serial_ids_prop;
ClutterInputDevice *device;
serial_ids_prop = XInternAtom (xdisplay, "Wacom Serial IDs", True);
if (serial_ids_prop == None)
return;
device = g_hash_table_lookup (seat_x11->devices_by_id,
GINT_TO_POINTER (xev->deviceid));
if (!device)
return;
if (xev->property == serial_ids_prop)
{
ClutterInputDeviceTool *tool = NULL;
ClutterInputDeviceToolType type;
MetaInputSettings *input_settings;
int serial_id;
serial_id = device_get_tool_serial (seat_x11, device);
if (serial_id != 0)
{
tool = g_hash_table_lookup (seat_x11->tools_by_serial,
GUINT_TO_POINTER (serial_id));
if (!tool)
{
type = clutter_input_device_get_device_type (device) == CLUTTER_ERASER_DEVICE ?
CLUTTER_INPUT_DEVICE_TOOL_ERASER : CLUTTER_INPUT_DEVICE_TOOL_PEN;
tool = meta_input_device_tool_x11_new (serial_id, type);
g_hash_table_insert (seat_x11->tools_by_serial,
GUINT_TO_POINTER (serial_id),
tool);
}
}
meta_input_device_x11_update_tool (device, tool);
input_settings = meta_backend_get_input_settings (seat_x11->backend);
meta_input_settings_notify_tool_change (input_settings, device, tool);
}
}
static void
emulate_motion (MetaSeatX11 *seat_x11,
double x,
double y)
{
ClutterInputDevice *pointer;
ClutterEvent *event;
pointer = clutter_seat_get_pointer (CLUTTER_SEAT (seat_x11));
event = clutter_event_motion_new (CLUTTER_EVENT_FLAG_SYNTHETIC,
CLUTTER_CURRENT_TIME,
pointer,
NULL, 0,
GRAPHENE_POINT_INIT (x, y),
GRAPHENE_POINT_INIT (0, 0),
GRAPHENE_POINT_INIT (0, 0),
GRAPHENE_POINT_INIT (0, 0),
NULL);
clutter_event_put (event);
clutter_event_free (event);
}
static void
translate_raw_event (MetaSeatX11 *seat_x11,
XEvent *xevent)
{
ClutterInputDevice *device;
XGenericEventCookie *cookie;
XIEvent *xi_event;
XIRawEvent *xev;
float x,y;
cookie = &xevent->xcookie;
xi_event = (XIEvent *) cookie->data;
xev = (XIRawEvent *) xi_event;
device = g_hash_table_lookup (seat_x11->devices_by_id,
GINT_TO_POINTER (xev->deviceid));
if (device == NULL)
return;
switch (cookie->evtype)
{
case XI_RawMotion:
g_debug ("raw motion: device:%d '%s'",
meta_input_device_x11_get_device_id (device),
clutter_input_device_get_device_name (device));
/* We don't get actual pointer location with raw events, and we cannot
* rely on `clutter_input_device_get_coords()` either because of
* unreparented toplevels (like all client-side decoration windows),
* so we need to explicitly query the pointer here...
*/
if (meta_input_device_x11_get_pointer_location (device, &x, &y))
{
if (_clutter_is_input_pointer_a11y_enabled (device))
_clutter_input_pointer_a11y_on_motion_event (device, x, y);
if (!seat_x11->has_pointer_focus)
emulate_motion (seat_x11, x, y);
}
break;
case XI_RawButtonPress:
case XI_RawButtonRelease:
g_debug ("raw button %s: device:%d '%s' button %i",
cookie->evtype == XI_RawButtonPress
? "press "
: "release",
meta_input_device_x11_get_device_id (device),
clutter_input_device_get_device_name (device),
xev->detail);
if (_clutter_is_input_pointer_a11y_enabled (device))
{
_clutter_input_pointer_a11y_on_button_event (device,
xev->detail,
(cookie->evtype == XI_RawButtonPress));
}
break;
}
}
static gboolean
translate_pad_axis (ClutterInputDevice *device,
XIValuatorState *valuators,
ClutterEventType *evtype,
uint32_t *number,
double *value)
{
double *values;
int i;
values = valuators->values;
for (i = PAD_AXIS_FIRST; i < valuators->mask_len * 8; i++)
{
double val;
uint32_t axis_number = 0;
if (!XIMaskIsSet (valuators->mask, i))
continue;
val = *values++;
if (val <= 0)
continue;
meta_input_device_x11_translate_axis (device, i, val, value);
if (i == PAD_AXIS_RING1 || i == PAD_AXIS_RING2)
{
*evtype = CLUTTER_PAD_RING;
(*value) *= 360.0;
}
else if (i == PAD_AXIS_STRIP1 || i == PAD_AXIS_STRIP2)
{
*evtype = CLUTTER_PAD_STRIP;
}
else
continue;
if (i == PAD_AXIS_STRIP2 || i == PAD_AXIS_RING2)
axis_number++;
*number = axis_number;
return TRUE;
}
return FALSE;
}
static ClutterEvent *
translate_pad_axis_event (XIDeviceEvent *xev,
ClutterInputDevice *device)
{
double value;
uint32_t number, mode = 0;
ClutterEventType evtype;
ClutterEvent *event = NULL;
if (!translate_pad_axis (device, &xev->valuators,
&evtype, &number, &value))
return FALSE;
/* When touching a ring/strip a first XI_Motion event
* is generated. Use it to reset the pad state, so
* later events actually have a directionality.
*/
if (xev->evtype == XI_Motion)
value = -1;
#ifdef HAVE_LIBWACOM
mode = meta_input_device_x11_get_pad_group_mode (device, number);
#endif
if (evtype == CLUTTER_PAD_RING)
{
event = clutter_event_pad_ring_new (CLUTTER_EVENT_NONE,
ms2us (xev->time),
device,
CLUTTER_INPUT_DEVICE_PAD_SOURCE_UNKNOWN,
number,
0,
value,
mode);
}
else
{
event = clutter_event_pad_strip_new (CLUTTER_EVENT_NONE,
ms2us (xev->time),
device,
CLUTTER_INPUT_DEVICE_PAD_SOURCE_UNKNOWN,
number,
0,
value,
mode);
}
g_debug ("%s: win:0x%x, device:%d '%s', time:%lu "
"(value:%f)",
evtype == CLUTTER_PAD_RING
? "pad ring "
: "pad strip",
(unsigned int) xev->event,
meta_input_device_x11_get_device_id (device),
clutter_input_device_get_device_name (device),
xev->time, value);
return event;
}
static ClutterStage *
get_event_stage (MetaSeatX11 *seat_x11,
XIEvent *xi_event)
{
Window xwindow = None;
switch (xi_event->evtype)
{
case XI_KeyPress:
case XI_KeyRelease:
case XI_ButtonPress:
case XI_ButtonRelease:
case XI_Motion:
case XI_TouchBegin:
case XI_TouchUpdate:
case XI_TouchEnd:
{
XIDeviceEvent *xev = (XIDeviceEvent *) xi_event;
xwindow = xev->event;
}
break;
case XI_Enter:
case XI_Leave:
case XI_FocusIn:
case XI_FocusOut:
{
XIEnterEvent *xev = (XIEnterEvent *) xi_event;
xwindow = xev->event;
}
break;
case XI_HierarchyChanged:
return CLUTTER_STAGE (meta_backend_get_stage (seat_x11->backend));
default:
break;
}
if (xwindow == None)
return NULL;
return meta_x11_get_stage_from_window (xwindow);
}
/*
* print_key_sym: Translate a symbol to its printable form if any
* @symbol: the symbol to translate
* @buffer: the buffer where to put the translated string
* @len: size of the buffer
*
* Translates @symbol into a printable representation in @buffer, if possible.
*
* Return value: The number of bytes of the translated string, 0 if the
* symbol can't be printed
*
* Note: The code is derived from libX11's src/KeyBind.c
* Copyright 1985, 1987, 1998 The Open Group
*
* Note: This code works for Latin-1 symbols. clutter_keysym_to_unicode()
* does the work for the other keysyms.
*/
static int
print_keysym (uint32_t symbol,
char *buffer,
int len)
{
unsigned long high_bytes;
unsigned char c;
high_bytes = symbol >> 8;
if (!(len &&
((high_bytes == 0) ||
((high_bytes == 0xFF) &&
(((symbol >= CLUTTER_KEY_BackSpace) &&
(symbol <= CLUTTER_KEY_Clear)) ||
(symbol == CLUTTER_KEY_Return) ||
(symbol == CLUTTER_KEY_Escape) ||
(symbol == CLUTTER_KEY_KP_Space) ||
(symbol == CLUTTER_KEY_KP_Tab) ||
(symbol == CLUTTER_KEY_KP_Enter) ||
((symbol >= CLUTTER_KEY_KP_Multiply) &&
(symbol <= CLUTTER_KEY_KP_9)) ||
(symbol == CLUTTER_KEY_KP_Equal) ||
(symbol == CLUTTER_KEY_Delete))))))
return 0;
/* if X keysym, convert to ascii by grabbing low 7 bits */
if (symbol == CLUTTER_KEY_KP_Space)
c = CLUTTER_KEY_space & 0x7F; /* patch encoding botch */
else if (high_bytes == 0xFF)
c = symbol & 0x7F;
else
c = symbol & 0xFF;
buffer[0] = c;
return 1;
}
static double *
translate_axes (ClutterInputDevice *device,
double x,
double y,
XIValuatorState *valuators)
{
uint32_t i;
double *retval;
double *values;
retval = g_new0 (double, CLUTTER_INPUT_AXIS_LAST);
values = valuators->values;
for (i = 0; i < valuators->mask_len * 8; i++)
{
ClutterInputAxis axis;
double val;
if (!XIMaskIsSet (valuators->mask, i))
continue;
if (!meta_input_device_x11_get_axis (device, i, &axis))
continue;
val = *values++;
switch (axis)
{
case CLUTTER_INPUT_AXIS_X:
retval[axis] = x;
break;
case CLUTTER_INPUT_AXIS_Y:
retval[axis] = y;
break;
default:
meta_input_device_x11_translate_axis (device, i, val, &retval[axis]);
break;
}
}
return retval;
}
static double
scroll_valuators_changed (ClutterInputDevice *device,
XIValuatorState *valuators,
double *dx_p,
double *dy_p)
{
gboolean retval = FALSE;
uint32_t n_axes, n_val, i;
double *values;
n_axes = meta_input_device_x11_get_n_axes (device);
values = valuators->values;
*dx_p = *dy_p = 0.0;
n_val = 0;
for (i = 0; i < MIN (valuators->mask_len * 8, n_axes); i++)
{
ClutterScrollDirection direction;
double delta;
if (!XIMaskIsSet (valuators->mask, i))
continue;
if (meta_input_device_x11_get_scroll_delta (device, i,
values[n_val],
&direction,
&delta))
{
retval = TRUE;
if (direction == CLUTTER_SCROLL_UP ||
direction == CLUTTER_SCROLL_DOWN)
*dy_p = delta;
else
*dx_p = delta;
}
n_val += 1;
}
return retval;
}
static void
translate_coords (MetaStageX11 *stage_x11,
double event_x,
double event_y,
float *x_out,
float *y_out)
{
MetaStageImpl *stage_impl = META_STAGE_IMPL (stage_x11);
ClutterActor *stage = CLUTTER_ACTOR (stage_impl->wrapper);
float stage_width;
float stage_height;
clutter_actor_get_size (stage, &stage_width, &stage_height);
*x_out = CLAMP (event_x, 0, stage_width);
*y_out = CLAMP (event_y, 0, stage_height);
}
static void
on_keymap_state_change (MetaKeymapX11 *keymap_x11,
gpointer data)
{
ClutterSeat *seat = data;
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
MetaInputSettings *input_settings;
MetaKbdA11ySettings kbd_a11y_settings;
/* On keymaps state change, just reapply the current settings, it'll
* take care of enabling/disabling mousekeys based on NumLock state.
*/
input_settings = meta_backend_get_input_settings (seat_x11->backend);
meta_input_settings_get_kbd_a11y_settings (input_settings, &kbd_a11y_settings);
meta_seat_x11_apply_kbd_a11y_settings (seat, &kbd_a11y_settings);
}
static void
meta_seat_x11_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (object);
switch (prop_id)
{
case PROP_BACKEND:
seat_x11->backend = g_value_get_object (value);
break;
case PROP_OPCODE:
seat_x11->opcode = g_value_get_int (value);
break;
case PROP_POINTER_ID:
seat_x11->pointer_id = g_value_get_int (value);
break;
case PROP_KEYBOARD_ID:
seat_x11->keyboard_id = g_value_get_int (value);
break;
case PROP_TOUCH_MODE:
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_seat_x11_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (object);
switch (prop_id)
{
case PROP_BACKEND:
g_value_set_object (value, seat_x11->backend);
break;
case PROP_OPCODE:
g_value_set_int (value, seat_x11->opcode);
break;
case PROP_POINTER_ID:
g_value_set_int (value, seat_x11->pointer_id);
break;
case PROP_KEYBOARD_ID:
g_value_set_int (value, seat_x11->keyboard_id);
break;
case PROP_TOUCH_MODE:
g_value_set_boolean (value, seat_x11->touch_mode);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
void
meta_seat_x11_notify_devices (MetaSeatX11 *seat_x11,
ClutterStage *stage)
{
GHashTableIter iter;
ClutterInputDevice *device;
g_hash_table_iter_init (&iter, seat_x11->devices_by_id);
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &device))
{
ClutterEvent *event;
event = clutter_event_device_notify_new (CLUTTER_DEVICE_ADDED,
CLUTTER_EVENT_NONE,
CLUTTER_CURRENT_TIME,
device);
clutter_event_put (event);
clutter_event_free (event);
}
}
static void
meta_seat_x11_constructed (GObject *object)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (object);
Display *xdisplay = xdisplay_from_seat (seat_x11);
Window root_xwindow = root_xwindow_from_seat (seat_x11);
ClutterBackend *clutter_backend =
meta_backend_get_clutter_backend (seat_x11->backend);
XIDeviceInfo *info;
XIEventMask event_mask;
unsigned char mask[XIMaskLen(XI_LASTEVENT)] = { 0, };
int n_devices, i;
#ifdef HAVE_LIBGUDEV
const char *udev_subsystems[] = { "input", NULL };
seat_x11->udev_client = g_udev_client_new (udev_subsystems);
#endif
info = XIQueryDevice (xdisplay, XIAllDevices, &n_devices);
for (i = 0; i < n_devices; i++)
{
XIDeviceInfo *xi_device = &info[i];
if (!xi_device->enabled)
continue;
add_device (seat_x11, clutter_backend, xi_device);
}
XIFreeDeviceInfo (info);
XISetMask (mask, XI_HierarchyChanged);
XISetMask (mask, XI_DeviceChanged);
XISetMask (mask, XI_PropertyEvent);
event_mask.deviceid = XIAllDevices;
event_mask.mask_len = sizeof (mask);
event_mask.mask = mask;
XISelectEvents (xdisplay, root_xwindow,
&event_mask, 1);
memset(mask, 0, sizeof (mask));
XISetMask (mask, XI_RawMotion);
XISetMask (mask, XI_RawButtonPress);
XISetMask (mask, XI_RawButtonRelease);
if (meta_backend_x11_get_barriers (META_BACKEND_X11 (seat_x11->backend)))
{
XISetMask (mask, XI_BarrierHit);
XISetMask (mask, XI_BarrierLeave);
}
event_mask.deviceid = XIAllMasterDevices;
event_mask.mask_len = sizeof (mask);
event_mask.mask = mask;
XISelectEvents (xdisplay, root_xwindow,
&event_mask, 1);
XSync (xdisplay, False);
seat_x11->keymap = g_object_new (META_TYPE_KEYMAP_X11,
"backend", seat_x11->backend,
NULL);
g_signal_connect (seat_x11->keymap,
"state-changed",
G_CALLBACK (on_keymap_state_change),
seat_x11);
meta_seat_x11_a11y_init (CLUTTER_SEAT (seat_x11));
if (G_OBJECT_CLASS (meta_seat_x11_parent_class)->constructed)
G_OBJECT_CLASS (meta_seat_x11_parent_class)->constructed (object);
}
static void
meta_seat_x11_finalize (GObject *object)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (object);
#ifdef HAVE_LIBGUDEV
g_clear_object (&seat_x11->udev_client);
#endif
g_hash_table_unref (seat_x11->devices_by_id);
g_hash_table_unref (seat_x11->tools_by_serial);
g_hash_table_unref (seat_x11->touch_coords);
g_list_free (seat_x11->devices);
G_OBJECT_CLASS (meta_seat_x11_parent_class)->finalize (object);
}
static ClutterInputDevice *
meta_seat_x11_get_pointer (ClutterSeat *seat)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
return seat_x11->core_pointer;
}
static ClutterInputDevice *
meta_seat_x11_get_keyboard (ClutterSeat *seat)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
return seat_x11->core_keyboard;
}
static const GList *
meta_seat_x11_peek_devices (ClutterSeat *seat)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
return (const GList *) seat_x11->devices;
}
static void
meta_seat_x11_bell_notify (ClutterSeat *seat)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
MetaContext *context = meta_backend_get_context (seat_x11->backend);
MetaDisplay *display = meta_context_get_display (context);
meta_bell_notify (display, NULL);
}
static ClutterKeymap *
meta_seat_x11_get_keymap (ClutterSeat *seat)
{
return CLUTTER_KEYMAP (META_SEAT_X11 (seat)->keymap);
}
static ClutterVirtualInputDevice *
meta_seat_x11_create_virtual_device (ClutterSeat *seat,
ClutterInputDeviceType device_type)
{
return g_object_new (META_TYPE_VIRTUAL_INPUT_DEVICE_X11,
"seat", seat,
"device-type", device_type,
NULL);
}
static ClutterVirtualDeviceType
meta_seat_x11_get_supported_virtual_device_types (ClutterSeat *seat)
{
return (CLUTTER_VIRTUAL_DEVICE_TYPE_KEYBOARD |
CLUTTER_VIRTUAL_DEVICE_TYPE_POINTER);
}
static void
meta_seat_x11_warp_pointer (ClutterSeat *seat,
int x,
int y)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
Display *xdisplay = xdisplay_from_seat (seat_x11);
Window root_xwindow = root_xwindow_from_seat (seat_x11);
mtk_x11_error_trap_push (xdisplay);
XIWarpPointer (xdisplay,
seat_x11->pointer_id,
None,
root_xwindow,
0, 0, 0, 0,
x, y);
mtk_x11_error_trap_pop (xdisplay);
}
static void
meta_seat_x11_init_pointer_position (ClutterSeat *seat,
float x,
float y)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
Display *xdisplay = xdisplay_from_seat (seat_x11);
Window root_xwindow = root_xwindow_from_seat (seat_x11);
mtk_x11_error_trap_push (xdisplay);
XIWarpPointer (xdisplay,
seat_x11->pointer_id,
None,
root_xwindow,
0, 0, 0, 0,
(int) x, (int) y);
mtk_x11_error_trap_pop (xdisplay);
}
static uint32_t
translate_state (XIButtonState *button_state,
XIModifierState *modifier_state,
XIGroupState *group_state)
{
uint32_t state = 0;
int i;
if (modifier_state)
state |= modifier_state->effective;
if (button_state)
{
for (i = 1; i < button_state->mask_len * 8; i++)
{
if (!XIMaskIsSet (button_state->mask, i))
continue;
switch (i)
{
case 1:
state |= CLUTTER_BUTTON1_MASK;
break;
case 2:
state |= CLUTTER_BUTTON2_MASK;
break;
case 3:
state |= CLUTTER_BUTTON3_MASK;
break;
case 8:
state |= CLUTTER_BUTTON4_MASK;
break;
case 9:
state |= CLUTTER_BUTTON5_MASK;
break;
default:
break;
}
}
}
if (group_state)
state |= XkbBuildCoreState (0, group_state->effective);
return state;
}
static gboolean
meta_seat_x11_query_state (ClutterSeat *seat,
ClutterInputDevice *device,
ClutterEventSequence *sequence,
graphene_point_t *coords,
ClutterModifierType *modifiers)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
MetaBackendX11 *backend_x11 = META_BACKEND_X11 (seat_x11->backend);
Display *xdisplay = xdisplay_from_seat (seat_x11);
Window root_ret, child_ret;
double root_x, root_y, win_x, win_y;
XIButtonState button_state = { 0 };
XIModifierState modifier_state;
XIGroupState group_state;
mtk_x11_error_trap_push (xdisplay);
XIQueryPointer (xdisplay,
seat_x11->pointer_id,
meta_backend_x11_get_xwindow (backend_x11),
&root_ret, &child_ret,
&root_x, &root_y, &win_x, &win_y,
&button_state, &modifier_state, &group_state);
if (mtk_x11_error_trap_pop_with_return (xdisplay))
{
g_free (button_state.mask);
return FALSE;
}
if (sequence)
{
MetaTouchInfo *touch_info;
touch_info = g_hash_table_lookup (seat_x11->touch_coords, sequence);
if (!touch_info)
{
g_free (button_state.mask);
return FALSE;
}
if (coords)
{
coords->x = touch_info->x;
coords->y = touch_info->y;
}
}
else
{
if (coords)
{
coords->x = win_x;
coords->y = win_y;
}
}
if (modifiers)
*modifiers = translate_state (&button_state, &modifier_state, &group_state);
g_free (button_state.mask);
return TRUE;
}
static void
meta_seat_x11_update_touchpoint (MetaSeatX11 *seat,
ClutterEventSequence *sequence,
double x,
double y)
{
MetaTouchInfo *touch_info;
touch_info = g_hash_table_lookup (seat->touch_coords, sequence);
if (!touch_info)
{
touch_info = g_new0 (MetaTouchInfo, 1);
touch_info->sequence = sequence;
g_hash_table_insert (seat->touch_coords, sequence, touch_info);
}
touch_info->x = x;
touch_info->y = y;
}
static void
meta_seat_x11_remove_touchpoint (MetaSeatX11 *seat,
ClutterEventSequence *sequence)
{
g_hash_table_remove (seat->touch_coords, sequence);
}
static void
meta_touch_info_free (MetaTouchInfo *touch_info)
{
g_free (touch_info);
}
static ClutterGrabState
meta_seat_x11_grab (ClutterSeat *seat,
uint32_t time)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
MetaBackend *backend = seat_x11->backend;
ClutterGrabState state = CLUTTER_GRAB_STATE_NONE;
g_return_val_if_fail (seat_x11->grab_state == CLUTTER_GRAB_STATE_NONE,
seat_x11->grab_state);
if (meta_backend_grab_device (backend,
META_VIRTUAL_CORE_POINTER_ID,
time))
state |= CLUTTER_GRAB_STATE_POINTER;
if (meta_backend_grab_device (backend,
META_VIRTUAL_CORE_KEYBOARD_ID,
time))
state |= CLUTTER_GRAB_STATE_KEYBOARD;
seat_x11->grab_state = state;
return state;
}
static void
meta_seat_x11_ungrab (ClutterSeat *seat,
uint32_t time)
{
MetaSeatX11 *seat_x11 = META_SEAT_X11 (seat);
MetaBackend *backend = seat_x11->backend;
if ((seat_x11->grab_state & CLUTTER_GRAB_STATE_POINTER) != 0)
{
meta_backend_ungrab_device (backend,
META_VIRTUAL_CORE_POINTER_ID,
time);
}
if ((seat_x11->grab_state & CLUTTER_GRAB_STATE_KEYBOARD) != 0)
{
meta_backend_ungrab_device (backend,
META_VIRTUAL_CORE_KEYBOARD_ID,
time);
}
seat_x11->grab_state = CLUTTER_GRAB_STATE_NONE;
}
static void
meta_seat_x11_class_init (MetaSeatX11Class *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
ClutterSeatClass *seat_class = CLUTTER_SEAT_CLASS (klass);
object_class->set_property = meta_seat_x11_set_property;
object_class->get_property = meta_seat_x11_get_property;
object_class->constructed = meta_seat_x11_constructed;
object_class->finalize = meta_seat_x11_finalize;
seat_class->get_pointer = meta_seat_x11_get_pointer;
seat_class->get_keyboard = meta_seat_x11_get_keyboard;
seat_class->peek_devices = meta_seat_x11_peek_devices;
seat_class->bell_notify = meta_seat_x11_bell_notify;
seat_class->get_keymap = meta_seat_x11_get_keymap;
seat_class->create_virtual_device = meta_seat_x11_create_virtual_device;
seat_class->get_supported_virtual_device_types = meta_seat_x11_get_supported_virtual_device_types;
seat_class->warp_pointer = meta_seat_x11_warp_pointer;
seat_class->init_pointer_position = meta_seat_x11_init_pointer_position;
seat_class->handle_event_post = meta_seat_x11_handle_event_post;
seat_class->query_state = meta_seat_x11_query_state;
seat_class->grab = meta_seat_x11_grab;
seat_class->ungrab = meta_seat_x11_ungrab;
props[PROP_BACKEND] =
g_param_spec_object ("backend", NULL, NULL,
META_TYPE_BACKEND,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
props[PROP_OPCODE] =
g_param_spec_int ("opcode", NULL, NULL,
0, G_MAXINT, 0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
props[PROP_POINTER_ID] =
g_param_spec_int ("pointer-id", NULL, NULL,
2, G_MAXINT, 2,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
props[PROP_KEYBOARD_ID] =
g_param_spec_int ("keyboard-id", NULL, NULL,
2, G_MAXINT, 2,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_properties (object_class, N_PROPS, props);
g_object_class_override_property (object_class, PROP_TOUCH_MODE,
"touch-mode");
}
static void
meta_seat_x11_init (MetaSeatX11 *seat)
{
seat->devices_by_id = g_hash_table_new_full (NULL, NULL,
NULL,
(GDestroyNotify) g_object_unref);
seat->tools_by_serial = g_hash_table_new_full (NULL, NULL, NULL,
(GDestroyNotify) g_object_unref);
seat->touch_coords = g_hash_table_new_full (NULL, NULL, NULL,
(GDestroyNotify) meta_touch_info_free);
}
MetaSeatX11 *
meta_seat_x11_new (MetaBackend *backend,
int opcode,
int logical_pointer,
int logical_keyboard)
{
MetaSeatX11 *seat_x11;
seat_x11 = g_object_new (META_TYPE_SEAT_X11,
"backend", backend,
"opcode", opcode,
"pointer-id", logical_pointer,
"keyboard-id", logical_keyboard,
NULL);
return seat_x11;
}
MetaBackend *
meta_seat_x11_get_backend (MetaSeatX11 *seat_x11)
{
return seat_x11->backend;
}
static ClutterInputDevice *
get_source_device_checked (MetaSeatX11 *seat,
XIDeviceEvent *xev)
{
ClutterInputDevice *source_device;
source_device = g_hash_table_lookup (seat->devices_by_id,
GINT_TO_POINTER (xev->sourceid));
if (!source_device)
g_warning ("Impossible to get the source device with id %d for event of "
"type %d", xev->sourceid, xev->evtype);
return source_device;
}
static uint32_t
evdev_button_code (uint32_t x_button)
{
uint32_t button;
switch (x_button)
{
case 1:
button = BTN_LEFT;
break;
/* The evdev input right and middle button numbers are swapped
relative to how Clutter numbers them */
case 2:
button = BTN_MIDDLE;
break;
case 3:
button = BTN_RIGHT;
break;
default:
button = x_button + (BTN_LEFT - 1) + 4;
break;
}
return button;
}
static ClutterModifierType
get_modifier_for_button (int i)
{
switch (i)
{
case 1:
return CLUTTER_BUTTON1_MASK;
case 2:
return CLUTTER_BUTTON2_MASK;
case 3:
return CLUTTER_BUTTON3_MASK;
case 4:
return CLUTTER_BUTTON4_MASK;
case 5:
return CLUTTER_BUTTON5_MASK;
default:
return 0;
}
}
ClutterEvent *
meta_seat_x11_translate_event (MetaSeatX11 *seat,
XEvent *xevent)
{
Display *xdisplay = xdisplay_from_seat (seat);
ClutterBackend *clutter_backend =
meta_backend_get_clutter_backend (seat->backend);
ClutterStage *stage = NULL;
MetaStageX11 *stage_x11 = NULL;
ClutterInputDevice *device, *source_device;
XGenericEventCookie *cookie;
ClutterEvent *event = NULL;
XIEvent *xi_event;
if (meta_keymap_x11_handle_event (seat->keymap, xevent))
return NULL;
cookie = &xevent->xcookie;
if (cookie->type != GenericEvent ||
cookie->extension != seat->opcode)
return NULL;
xi_event = (XIEvent *) cookie->data;
if (!xi_event)
return NULL;
if (cookie->evtype == XI_RawMotion ||
cookie->evtype == XI_RawButtonPress ||
cookie->evtype == XI_RawButtonRelease)
{
translate_raw_event (seat, xevent);
return NULL;
}
if (!(xi_event->evtype == XI_DeviceChanged ||
xi_event->evtype == XI_PropertyEvent))
{
stage = get_event_stage (seat, xi_event);
if (stage == NULL || CLUTTER_ACTOR_IN_DESTRUCTION (stage))
return NULL;
else
stage_x11 = META_STAGE_X11 (_clutter_stage_get_window (stage));
}
switch (xi_event->evtype)
{
case XI_HierarchyChanged:
{
XIHierarchyEvent *xev = (XIHierarchyEvent *) xi_event;
event = translate_hierarchy_event (clutter_backend, seat, xev);
}
break;
case XI_DeviceChanged:
{
XIDeviceChangedEvent *xev = (XIDeviceChangedEvent *) xi_event;
device = g_hash_table_lookup (seat->devices_by_id,
GINT_TO_POINTER (xev->deviceid));
source_device = g_hash_table_lookup (seat->devices_by_id,
GINT_TO_POINTER (xev->sourceid));
if (device)
{
meta_input_device_x11_reset_axes (device);
translate_device_classes (xdisplay,
device,
xev->classes,
xev->num_classes);
}
if (source_device)
meta_input_device_x11_reset_scroll_info (source_device);
}
break;
case XI_KeyPress:
case XI_KeyRelease:
{
XIDeviceEvent *xev = (XIDeviceEvent *) xi_event;
MetaKeymapX11 *keymap_x11 = seat->keymap;
char buffer[7] = { 0, };
uint32_t keyval, evcode, keycode;
ClutterModifierSet raw_modifiers;
ClutterModifierType state;
int len;
gunichar unicode_value;
source_device = get_source_device_checked (seat, xev);
if (!source_device)
return NULL;
raw_modifiers = (ClutterModifierSet) {
.pressed = xev->mods.base,
.latched = xev->mods.latched,
.locked = xev->mods.locked,
};
state = translate_state (&xev->buttons, &xev->mods, &xev->group);
keycode = xev->detail;
/* clutter-xkb-utils.c adds a fixed offset of 8 to go into XKB's
* range, so we do the reverse here. */
evcode = keycode - 8;
/* keyval is the key ignoring all modifiers ('1' vs. '!') */
keyval = meta_keymap_x11_translate_key_state (keymap_x11,
keycode,
&state,
NULL);
/* XXX keep this in sync with the evdev device manager */
len = print_keysym (keyval, buffer, sizeof (buffer));
if (len == 0)
{
/* not printable */
unicode_value = (gunichar) '\0';
}
else
{
unicode_value = g_utf8_get_char_validated (buffer, len);
if (unicode_value == -1 ||
unicode_value == -2)
unicode_value = (gunichar) '\0';
}
event = clutter_event_key_new ((xev->evtype == XI_KeyPress) ?
CLUTTER_KEY_PRESS : CLUTTER_KEY_RELEASE,
(xev->evtype == XI_KeyPress &&
xev->flags & XIKeyRepeat) ?
CLUTTER_EVENT_FLAG_REPEATED :
CLUTTER_EVENT_NONE,
ms2us (xev->time),
source_device,
raw_modifiers,
state,
keyval,
evcode,
keycode,
unicode_value);
g_debug ("%s: win:0x%x device:%d source:%d, key: %12s (%d)",
clutter_event_type (event) == CLUTTER_KEY_PRESS
? "key press "
: "key release",
(unsigned int) stage_x11->xwin,
xev->deviceid,
xev->sourceid,
keyval ? buffer : "(none)",
keyval);
if (xi_event->evtype == XI_KeyPress)
meta_stage_x11_set_user_time (stage_x11, xev->time);
}
break;
case XI_ButtonPress:
case XI_ButtonRelease:
{
XIDeviceEvent *xev = (XIDeviceEvent *) xi_event;
ClutterScrollDirection scroll_direction;
ClutterModifierType state;
ClutterInputDeviceTool *tool;
float x, y;
int button;
uint32_t evdev_code;
double *axes;
source_device = get_source_device_checked (seat, xev);
if (!source_device)
return NULL;
device = g_hash_table_lookup (seat->devices_by_id,
GINT_TO_POINTER (xev->deviceid));
if (clutter_input_device_get_device_type (source_device) == CLUTTER_PAD_DEVICE)
{
uint32_t button, group, mode;
/* We got these events because of the passive button grab */
XIAllowEvents (xdisplay, xev->sourceid, XIAsyncDevice, xev->time);
if (xev->detail >= 4 && xev->detail <= 7)
{
if (xi_event->evtype == XI_ButtonPress)
event = translate_pad_axis_event (xev, source_device);
break;
}
/* The 4-7 button range is taken as non-existent on pad devices,
* let the buttons above that take over this range.
*/
if (xev->detail > 7)
xev->detail -= 4;
/* Pad buttons are 0-indexed */
button = xev->detail - 1;
#ifdef HAVE_LIBWACOM
meta_input_device_x11_update_pad_state (device,
button,
(xi_event->evtype == XI_ButtonPress),
&group,
&mode);
#endif
event = clutter_event_pad_button_new ((xi_event->evtype == XI_ButtonPress) ?
CLUTTER_PAD_BUTTON_PRESS :
CLUTTER_PAD_BUTTON_RELEASE,
CLUTTER_EVENT_NONE,
us2ms (xev->time),
source_device,
button,
group,
mode);
g_debug ("%s: win:0x%x, device:%d '%s', time:%lu "
"(button:%d)",
(xi_event->evtype == XI_ButtonPress)
? "pad button press "
: "pad button release",
(unsigned int) stage_x11->xwin,
meta_input_device_x11_get_device_id (device),
clutter_input_device_get_device_name (device),
xev->time,
button);
break;
}
switch (xev->detail)
{
case 4:
case 5:
case 6:
case 7:
/* we only generate Scroll events on ButtonPress */
if (xi_event->evtype == XI_ButtonRelease)
return NULL;
if (xev->detail == 4)
scroll_direction = CLUTTER_SCROLL_UP;
else if (xev->detail == 5)
scroll_direction = CLUTTER_SCROLL_DOWN;
else if (xev->detail == 6)
scroll_direction = CLUTTER_SCROLL_LEFT;
else
scroll_direction = CLUTTER_SCROLL_RIGHT;
translate_coords (stage_x11, xev->event_x, xev->event_y, &x, &y);
state = translate_state (&xev->buttons, &xev->mods, &xev->group);
tool = meta_input_device_x11_get_current_tool (source_device);
event = clutter_event_scroll_discrete_new (CLUTTER_EVENT_NONE,
ms2us (xev->time),
source_device,
tool,
state,
GRAPHENE_POINT_INIT (x, y),
scroll_direction);
g_debug ("scroll: win:0x%x, device:%d '%s', time:%d "
"(direction:%s, "
"x:%.2f, y:%.2f, "
"emulated:%s)",
(unsigned int) stage_x11->xwin,
meta_input_device_x11_get_device_id (device),
clutter_input_device_get_device_name (device),
clutter_event_get_time (event),
scroll_direction == CLUTTER_SCROLL_UP ? "up" :
scroll_direction == CLUTTER_SCROLL_DOWN ? "down" :
scroll_direction == CLUTTER_SCROLL_LEFT ? "left" :
scroll_direction == CLUTTER_SCROLL_RIGHT ? "right" :
"invalid",
x, y,
(xev->flags & XIPointerEmulated) ? "yes" : "no");
break;
default:
translate_coords (stage_x11, xev->event_x, xev->event_y, &x, &y);
button = xev->detail;
evdev_code = evdev_button_code (xev->detail);
state = translate_state (&xev->buttons, &xev->mods, &xev->group);
tool = meta_input_device_x11_get_current_tool (source_device);
axes = translate_axes (device, x, y, &xev->valuators);
/* The XIButtonState sent in the event specifies the
* state of the buttons before the event. In order to
* get the current state of the buttons, we need to
* filter out the current button.
*/
switch (xi_event->evtype)
{
case XI_ButtonPress:
state |= (get_modifier_for_button (button));
break;
case XI_ButtonRelease:
state &= ~(get_modifier_for_button (button));
break;
default:
break;
}
event = clutter_event_button_new ((xi_event->evtype == XI_ButtonPress) ?
CLUTTER_BUTTON_PRESS :
CLUTTER_BUTTON_RELEASE,
(xev->flags & XIPointerEmulated) ?
CLUTTER_EVENT_FLAG_POINTER_EMULATED :
CLUTTER_EVENT_NONE,
ms2us (xev->time),
source_device,
tool,
state,
GRAPHENE_POINT_INIT (x, y),
button,
evdev_code,
axes);
g_debug ("%s: win:0x%x, device:%d '%s', time:%lu "
"(button:%d, "
"x:%.2f, y:%.2f, "
"axes:%s, "
"emulated:%s)",
(xi_event->evtype == XI_ButtonPress)
? "button press "
: "button release",
(unsigned int) stage_x11->xwin,
meta_input_device_x11_get_device_id (device),
clutter_input_device_get_device_name (device),
xev->time,
xev->detail,
x, y,
axes != NULL ? "yes" : "no",
(xev->flags & XIPointerEmulated) ? "yes" : "no");
break;
}
if (xi_event->evtype == XI_ButtonPress)
meta_stage_x11_set_user_time (stage_x11, xev->time);
}
break;
case XI_Motion:
{
XIDeviceEvent *xev = (XIDeviceEvent *) xi_event;
double delta_x, delta_y;
ClutterModifierType state;
ClutterInputDeviceTool *tool;
float x, y;
double *axes;
source_device = get_source_device_checked (seat, xev);
if (!source_device)
break;
device = g_hash_table_lookup (seat->devices_by_id,
GINT_TO_POINTER (xev->deviceid));
if (clutter_input_device_get_device_type (source_device) == CLUTTER_PAD_DEVICE)
{
event = translate_pad_axis_event (xev, source_device);
break;
}
translate_coords (stage_x11, xev->event_x, xev->event_y, &x, &y);
state = translate_state (&xev->buttons, &xev->mods, &xev->group);
tool = meta_input_device_x11_get_current_tool (source_device);
if (scroll_valuators_changed (source_device,
&xev->valuators,
&delta_x, &delta_y))
{
event = clutter_event_scroll_smooth_new (CLUTTER_EVENT_NONE,
ms2us (xev->time),
source_device,
tool,
state,
GRAPHENE_POINT_INIT (x, y),
GRAPHENE_POINT_INIT (delta_x, delta_y),
CLUTTER_SCROLL_SOURCE_UNKNOWN,
CLUTTER_SCROLL_FINISHED_NONE);
g_debug ("smooth scroll: win:0x%x device:%d '%s' (x:%.2f, y:%.2f, delta:%f, %f)",
(unsigned int) stage_x11->xwin,
meta_input_device_x11_get_device_id (source_device),
clutter_input_device_get_device_name (source_device),
x, y,
delta_x, delta_y);
break;
}
axes = translate_axes (device, x, y, &xev->valuators);
event = clutter_event_motion_new ((xev->flags & XIPointerEmulated) ?
CLUTTER_EVENT_FLAG_POINTER_EMULATED :
CLUTTER_EVENT_NONE,
ms2us (xev->time),
source_device,
tool,
state,
GRAPHENE_POINT_INIT (x, y),
GRAPHENE_POINT_INIT (0, 0),
GRAPHENE_POINT_INIT (0, 0),
GRAPHENE_POINT_INIT (0, 0),
axes);
g_debug ("motion: win:0x%x device:%d '%s' (x:%.2f, y:%.2f, axes:%s)",
(unsigned int) stage_x11->xwin,
meta_input_device_x11_get_device_id (source_device),
clutter_input_device_get_device_name (source_device),
x, y,
axes != NULL ? "yes" : "no");
}
break;
case XI_TouchBegin:
case XI_TouchEnd:
{
XIDeviceEvent *xev = (XIDeviceEvent *) xi_event;
ClutterEventType evtype;
ClutterModifierType state;
ClutterEventSequence *sequence;
float x, y;
device = g_hash_table_lookup (seat->devices_by_id,
GINT_TO_POINTER (xev->deviceid));
source_device = g_hash_table_lookup (seat->devices_by_id,
GINT_TO_POINTER (xev->sourceid));
if (xi_event->evtype == XI_TouchBegin)
evtype = CLUTTER_TOUCH_BEGIN;
else
evtype = CLUTTER_TOUCH_END;
translate_coords (stage_x11, xev->event_x, xev->event_y, &x, &y);
state = translate_state (&xev->buttons, &xev->mods, &xev->group);
/* "NULL" sequences are special cased in clutter */
sequence = GINT_TO_POINTER (MAX (1, xev->detail + 1));
if (xi_event->evtype == XI_TouchBegin)
{
state |= CLUTTER_BUTTON1_MASK;
meta_stage_x11_set_user_time (stage_x11, xev->time);
meta_seat_x11_update_touchpoint (seat,
sequence,
xev->root_x,
xev->root_y);
}
else if (xi_event->evtype == XI_TouchEnd)
{
meta_seat_x11_remove_touchpoint (seat, sequence);
}
event = clutter_event_touch_new (evtype,
(xev->flags & XITouchEmulatingPointer) ?
CLUTTER_EVENT_FLAG_POINTER_EMULATED :
CLUTTER_EVENT_NONE,
ms2us (xev->time),
source_device,
sequence,
state,
GRAPHENE_POINT_INIT (x, y));
g_debug ("touch %s: win:0x%x device:%d '%s' (seq:%d, x:%.2f, y:%.2f)",
evtype == CLUTTER_TOUCH_BEGIN ? "begin" : "end",
(unsigned int) stage_x11->xwin,
meta_input_device_x11_get_device_id (device),
clutter_input_device_get_device_name (device),
GPOINTER_TO_UINT (sequence),
x, y);
}
break;
case XI_TouchUpdate:
{
XIDeviceEvent *xev = (XIDeviceEvent *) xi_event;
ClutterEventSequence *sequence;
ClutterModifierType state;
float x, y;
device = g_hash_table_lookup (seat->devices_by_id,
GINT_TO_POINTER (xev->deviceid));
source_device = g_hash_table_lookup (seat->devices_by_id,
GINT_TO_POINTER (xev->sourceid));
/* "NULL" sequences are special cased in clutter */
sequence = GINT_TO_POINTER (MAX (1, xev->detail + 1));
translate_coords (stage_x11, xev->event_x, xev->event_y, &x, &y);
state = translate_state (&xev->buttons, &xev->mods, &xev->group);
state |= CLUTTER_BUTTON1_MASK;
meta_seat_x11_update_touchpoint (seat,
sequence,
xev->root_x,
xev->root_y);
event = clutter_event_touch_new (CLUTTER_TOUCH_UPDATE,
(xev->flags & XITouchEmulatingPointer) ?
CLUTTER_EVENT_FLAG_POINTER_EMULATED :
CLUTTER_EVENT_NONE,
ms2us (xev->time),
source_device,
sequence,
state,
GRAPHENE_POINT_INIT (x, y));
g_debug ("touch update: win:0x%x device:%d '%s' (seq:%d, x:%.2f, y:%.2f)",
(unsigned int) stage_x11->xwin,
meta_input_device_x11_get_device_id (device),
clutter_input_device_get_device_name (device),
GPOINTER_TO_UINT (sequence),
x, y);
}
break;
case XI_Enter:
case XI_Leave:
{
XIEnterEvent *xev = (XIEnterEvent *) xi_event;
float x, y;
device = g_hash_table_lookup (seat->devices_by_id,
GINT_TO_POINTER (xev->deviceid));
source_device = g_hash_table_lookup (seat->devices_by_id,
GINT_TO_POINTER (xev->sourceid));
translate_coords (stage_x11, xev->event_x, xev->event_y, &x, &y);
event = clutter_event_crossing_new ((xi_event->evtype == XI_Enter) ?
CLUTTER_ENTER : CLUTTER_LEAVE,
CLUTTER_EVENT_NONE,
ms2us (xev->time),
device,
NULL,
GRAPHENE_POINT_INIT (x, y),
CLUTTER_ACTOR (stage), NULL);
if (xev->deviceid == seat->pointer_id)
seat->has_pointer_focus = (xi_event->evtype == XI_Enter);
meta_input_device_x11_reset_scroll_info (source_device);
}
break;
case XI_FocusIn:
case XI_FocusOut:
break;
case XI_PropertyEvent:
translate_property_event (seat, xi_event);
break;
}
return event;
}
void
meta_seat_x11_select_stage_events (MetaSeatX11 *seat,
ClutterStage *stage)
{
Display *xdisplay = xdisplay_from_seat (seat);
MetaStageX11 *stage_x11;
XIEventMask xi_event_mask;
unsigned char *mask;
int len;
stage_x11 = META_STAGE_X11 (_clutter_stage_get_window (stage));
len = XIMaskLen (XI_LASTEVENT);
mask = g_new0 (unsigned char, len);
XISetMask (mask, XI_Motion);
XISetMask (mask, XI_ButtonPress);
XISetMask (mask, XI_ButtonRelease);
XISetMask (mask, XI_KeyPress);
XISetMask (mask, XI_KeyRelease);
XISetMask (mask, XI_Enter);
XISetMask (mask, XI_Leave);
XISetMask (mask, XI_TouchBegin);
XISetMask (mask, XI_TouchUpdate);
XISetMask (mask, XI_TouchEnd);
xi_event_mask.deviceid = XIAllMasterDevices;
xi_event_mask.mask = mask;
xi_event_mask.mask_len = len;
XISelectEvents (xdisplay, stage_x11->xwin, &xi_event_mask, 1);
g_free (mask);
}