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cc7b3985b3
gtk/gdk/x11/gdkdevicemanager-xi2.c
Carlos Garnacho cc7b3985b3 xi2: Reset scroll valuators on synthesized crossing events 
On crossing events resulting from moving windows (eg. workspace switch),
deviceid equals sourceid, so make those reset scroll valuators on all
slave devices to avoid misleading jumps in scroll events

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=690275
2013-04-10 20:18:09 +02:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gdkx11devicemanager-xi2.h"
#include "gdkx11device-xi2.h"
#include "gdkdevicemanagerprivate-core.h"
#include "gdkdeviceprivate.h"
#include "gdkdisplayprivate.h"
#include "gdkeventtranslator.h"
#include "gdkprivate-x11.h"
#include "gdkintl.h"
#include "gdkkeysyms.h"
#include "gdkinternals.h"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/extensions/XInput2.h>
#include <string.h>
struct _GdkX11DeviceManagerXI2
{
GdkX11DeviceManagerCore parent_object;
GHashTable *id_table;
GList *devices;
gint opcode;
gint major;
gint minor;
};
struct _GdkX11DeviceManagerXI2Class
{
GdkDeviceManagerClass parent_class;
};
static void gdk_x11_device_manager_xi2_event_translator_init (GdkEventTranslatorIface *iface);
G_DEFINE_TYPE_WITH_CODE (GdkX11DeviceManagerXI2, gdk_x11_device_manager_xi2, GDK_TYPE_X11_DEVICE_MANAGER_CORE,
G_IMPLEMENT_INTERFACE (GDK_TYPE_EVENT_TRANSLATOR,
gdk_x11_device_manager_xi2_event_translator_init))
static void gdk_x11_device_manager_xi2_constructed (GObject *object);
static void gdk_x11_device_manager_xi2_dispose (GObject *object);
static void gdk_x11_device_manager_xi2_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gdk_x11_device_manager_xi2_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static GList * gdk_x11_device_manager_xi2_list_devices (GdkDeviceManager *device_manager,
GdkDeviceType type);
static GdkDevice * gdk_x11_device_manager_xi2_get_client_pointer (GdkDeviceManager *device_manager);
static gboolean gdk_x11_device_manager_xi2_translate_event (GdkEventTranslator *translator,
GdkDisplay *display,
GdkEvent *event,
XEvent *xevent);
static GdkEventMask gdk_x11_device_manager_xi2_get_handled_events (GdkEventTranslator *translator);
static void gdk_x11_device_manager_xi2_select_window_events (GdkEventTranslator *translator,
Window window,
GdkEventMask event_mask);
static GdkWindow * gdk_x11_device_manager_xi2_get_window (GdkEventTranslator *translator,
XEvent *xevent);
enum {
PROP_0,
PROP_OPCODE,
PROP_MAJOR,
PROP_MINOR
};
static void
gdk_x11_device_manager_xi2_class_init (GdkX11DeviceManagerXI2Class *klass)
{
GdkDeviceManagerClass *device_manager_class = GDK_DEVICE_MANAGER_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = gdk_x11_device_manager_xi2_constructed;
object_class->dispose = gdk_x11_device_manager_xi2_dispose;
object_class->set_property = gdk_x11_device_manager_xi2_set_property;
object_class->get_property = gdk_x11_device_manager_xi2_get_property;
device_manager_class->list_devices = gdk_x11_device_manager_xi2_list_devices;
device_manager_class->get_client_pointer = gdk_x11_device_manager_xi2_get_client_pointer;
g_object_class_install_property (object_class,
PROP_OPCODE,
g_param_spec_int ("opcode",
P_("Opcode"),
P_("Opcode for XInput2 requests"),
0, G_MAXINT, 0,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class,
PROP_MAJOR,
g_param_spec_int ("major",
P_("Major"),
P_("Major version number"),
0, G_MAXINT, 0,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class,
PROP_MINOR,
g_param_spec_int ("minor",
P_("Minor"),
P_("Minor version number"),
0, G_MAXINT, 0,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
}
static void
gdk_x11_device_manager_xi2_init (GdkX11DeviceManagerXI2 *device_manager)
{
device_manager->id_table = g_hash_table_new_full (g_direct_hash,
g_direct_equal,
NULL,
(GDestroyNotify) g_object_unref);
}
static void
_gdk_x11_device_manager_xi2_select_events (GdkDeviceManager *device_manager,
Window xwindow,
XIEventMask *event_mask)
{
GdkDisplay *display;
Display *xdisplay;
display = gdk_device_manager_get_display (device_manager);
xdisplay = GDK_DISPLAY_XDISPLAY (display);
XISelectEvents (xdisplay, xwindow, event_mask, 1);
}
static void
translate_valuator_class (GdkDisplay *display,
GdkDevice *device,
Atom valuator_label,
gdouble min,
gdouble max,
gdouble resolution)
{
static gboolean initialized = FALSE;
static Atom label_atoms [GDK_AXIS_LAST] = { 0 };
GdkAxisUse use = GDK_AXIS_IGNORE;
GdkAtom label;
gint i;
if (!initialized)
{
label_atoms [GDK_AXIS_X] = gdk_x11_get_xatom_by_name_for_display (display, "Abs X");
label_atoms [GDK_AXIS_Y] = gdk_x11_get_xatom_by_name_for_display (display, "Abs Y");
label_atoms [GDK_AXIS_PRESSURE] = gdk_x11_get_xatom_by_name_for_display (display, "Abs Pressure");
label_atoms [GDK_AXIS_XTILT] = gdk_x11_get_xatom_by_name_for_display (display, "Abs Tilt X");
label_atoms [GDK_AXIS_YTILT] = gdk_x11_get_xatom_by_name_for_display (display, "Abs Tilt Y");
label_atoms [GDK_AXIS_WHEEL] = gdk_x11_get_xatom_by_name_for_display (display, "Abs Wheel");
initialized = TRUE;
}
for (i = GDK_AXIS_IGNORE; i < GDK_AXIS_LAST; i++)
{
if (label_atoms[i] == valuator_label)
{
use = i;
break;
}
}
if (valuator_label != None)
label = gdk_x11_xatom_to_atom_for_display (display, valuator_label);
else
label = GDK_NONE;
_gdk_device_add_axis (device, label, use, min, max, resolution);
}
static void
translate_device_classes (GdkDisplay *display,
GdkDevice *device,
XIAnyClassInfo **classes,
guint n_classes)
{
gint i;
g_object_freeze_notify (G_OBJECT (device));
for (i = 0; i < n_classes; i++)
{
XIAnyClassInfo *class_info = classes[i];
switch (class_info->type)
{
case XIKeyClass:
{
XIKeyClassInfo *key_info = (XIKeyClassInfo *) class_info;
gint i;
_gdk_device_set_keys (device, key_info->num_keycodes);
for (i = 0; i < key_info->num_keycodes; i++)
gdk_device_set_key (device, i, key_info->keycodes[i], 0);
}
break;
case XIValuatorClass:
{
XIValuatorClassInfo *valuator_info = (XIValuatorClassInfo *) class_info;
translate_valuator_class (display, device,
valuator_info->label,
valuator_info->min,
valuator_info->max,
valuator_info->resolution);
}
break;
#ifdef XINPUT_2_2
case XIScrollClass:
{
XIScrollClassInfo *scroll_info = (XIScrollClassInfo *) class_info;
GdkScrollDirection direction;
if (scroll_info->scroll_type == XIScrollTypeVertical)
direction = GDK_SCROLL_DOWN;
else
direction = GDK_SCROLL_RIGHT;
GDK_NOTE (INPUT,
g_message ("\n\tscroll valuator %d: %s, increment %f",
scroll_info->number,
scroll_info->scroll_type == XIScrollTypeVertical
? "vertical"
: "horizontal",
scroll_info->increment));
_gdk_x11_device_xi2_add_scroll_valuator (GDK_X11_DEVICE_XI2 (device),
scroll_info->number,
direction,
scroll_info->increment);
}
#endif /* XINPUT_2_2 */
default:
/* Ignore */
break;
}
}
g_object_thaw_notify (G_OBJECT (device));
}
static gboolean
is_touch_device (XIAnyClassInfo **classes,
guint n_classes,
GdkInputSource *device_type,
gint *num_touches)
{
#ifdef XINPUT_2_2
guint 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 = GDK_SOURCE_TOUCHSCREEN;
else if (class->mode == XIDependentTouch)
*device_type = GDK_SOURCE_TOUCHPAD;
else
continue;
*num_touches = class->num_touches;
return TRUE;
}
}
#endif
return FALSE;
}
static GdkDevice *
create_device (GdkDeviceManager *device_manager,
GdkDisplay *display,
XIDeviceInfo *dev)
{
GdkInputSource input_source;
GdkInputSource touch_source;
GdkDeviceType type;
GdkDevice *device;
GdkInputMode mode;
gint num_touches = 0;
if (dev->use == XIMasterKeyboard || dev->use == XISlaveKeyboard)
input_source = GDK_SOURCE_KEYBOARD;
else if (dev->use == XISlavePointer &&
is_touch_device (dev->classes, dev->num_classes, &touch_source, &num_touches))
input_source = touch_source;
else
{
gchar *tmp_name;
tmp_name = g_ascii_strdown (dev->name, -1);
if (strstr (tmp_name, "eraser"))
input_source = GDK_SOURCE_ERASER;
else if (strstr (tmp_name, "cursor"))
input_source = GDK_SOURCE_CURSOR;
else if (strstr (tmp_name, "wacom") ||
strstr (tmp_name, "pen"))
input_source = GDK_SOURCE_PEN;
else
input_source = GDK_SOURCE_MOUSE;
g_free (tmp_name);
}
switch (dev->use)
{
case XIMasterKeyboard:
case XIMasterPointer:
type = GDK_DEVICE_TYPE_MASTER;
mode = GDK_MODE_SCREEN;
break;
case XISlaveKeyboard:
case XISlavePointer:
type = GDK_DEVICE_TYPE_SLAVE;
mode = GDK_MODE_DISABLED;
break;
case XIFloatingSlave:
default:
type = GDK_DEVICE_TYPE_FLOATING;
mode = GDK_MODE_DISABLED;
break;
}
GDK_NOTE (INPUT,
({
const gchar *type_names[] = { "master", "slave", "floating" };
const gchar *source_names[] = { "mouse", "pen", "eraser", "cursor", "keyboard", "direct touch", "indirect touch" };
const gchar *mode_names[] = { "disabled", "screen", "window" };
g_message ("input device:\n\tname: %s\n\ttype: %s\n\tsource: %s\n\tmode: %s\n\thas cursor: %d\n\ttouches: %d",
dev->name,
type_names[type],
source_names[input_source],
mode_names[mode],
dev->use == XIMasterPointer,
num_touches);
}));
device = g_object_new (GDK_TYPE_X11_DEVICE_XI2,
"name", dev->name,
"type", type,
"input-source", input_source,
"input-mode", mode,
"has-cursor", (dev->use == XIMasterPointer),
"display", display,
"device-manager", device_manager,
"device-id", dev->deviceid,
NULL);
translate_device_classes (display, device, dev->classes, dev->num_classes);
return device;
}
static GdkDevice *
add_device (GdkX11DeviceManagerXI2 *device_manager,
XIDeviceInfo *dev,
gboolean emit_signal)
{
GdkDisplay *display;
GdkDevice *device;
display = gdk_device_manager_get_display (GDK_DEVICE_MANAGER (device_manager));
device = create_device (GDK_DEVICE_MANAGER (device_manager), display, dev);
g_hash_table_replace (device_manager->id_table,
GINT_TO_POINTER (dev->deviceid),
g_object_ref (device));
device_manager->devices = g_list_append (device_manager->devices, device);
if (emit_signal)
{
if (dev->use == XISlavePointer || dev->use == XISlaveKeyboard)
{
GdkDevice *master;
/* The device manager is already constructed, then
* keep the hierarchy coherent for the added device.
*/
master = g_hash_table_lookup (device_manager->id_table,
GINT_TO_POINTER (dev->attachment));
_gdk_device_set_associated_device (device, master);
_gdk_device_add_slave (master, device);
}
g_signal_emit_by_name (device_manager, "device-added", device);
}
return device;
}
static void
remove_device (GdkX11DeviceManagerXI2 *device_manager,
gint device_id)
{
GdkDevice *device;
device = g_hash_table_lookup (device_manager->id_table,
GINT_TO_POINTER (device_id));
if (device)
{
device_manager->devices = g_list_remove (device_manager->devices, device);
g_signal_emit_by_name (device_manager, "device-removed", device);
g_object_run_dispose (G_OBJECT (device));
g_hash_table_remove (device_manager->id_table,
GINT_TO_POINTER (device_id));
}
}
static void
relate_masters (gpointer key,
gpointer value,
gpointer user_data)
{
GdkX11DeviceManagerXI2 *device_manager;
GdkDevice *device, *relative;
device_manager = user_data;
device = g_hash_table_lookup (device_manager->id_table, key);
relative = g_hash_table_lookup (device_manager->id_table, value);
_gdk_device_set_associated_device (device, relative);
_gdk_device_set_associated_device (relative, device);
}
static void
relate_slaves (gpointer key,
gpointer value,
gpointer user_data)
{
GdkX11DeviceManagerXI2 *device_manager;
GdkDevice *slave, *master;
device_manager = user_data;
slave = g_hash_table_lookup (device_manager->id_table, key);
master = g_hash_table_lookup (device_manager->id_table, value);
_gdk_device_set_associated_device (slave, master);
_gdk_device_add_slave (master, slave);
}
static void
gdk_x11_device_manager_xi2_constructed (GObject *object)
{
GdkX11DeviceManagerXI2 *device_manager;
GdkDisplay *display;
GdkScreen *screen;
GHashTable *masters, *slaves;
Display *xdisplay;
XIDeviceInfo *info, *dev;
int ndevices, i;
XIEventMask event_mask;
unsigned char mask[2] = { 0 };
device_manager = GDK_X11_DEVICE_MANAGER_XI2 (object);
display = gdk_device_manager_get_display (GDK_DEVICE_MANAGER (object));
xdisplay = GDK_DISPLAY_XDISPLAY (display);
g_assert (device_manager->major == 2);
masters = g_hash_table_new (NULL, NULL);
slaves = g_hash_table_new (NULL, NULL);
info = XIQueryDevice (xdisplay, XIAllDevices, &ndevices);
/* Initialize devices list */
for (i = 0; i < ndevices; i++)
{
dev = &info[i];
if (!dev->enabled)
continue;
add_device (device_manager, dev, FALSE);
if (dev->use == XIMasterPointer ||
dev->use == XIMasterKeyboard)
{
g_hash_table_insert (masters,
GINT_TO_POINTER (dev->deviceid),
GINT_TO_POINTER (dev->attachment));
}
else if (dev->use == XISlavePointer ||
dev->use == XISlaveKeyboard)
{
g_hash_table_insert (slaves,
GINT_TO_POINTER (dev->deviceid),
GINT_TO_POINTER (dev->attachment));
}
}
XIFreeDeviceInfo (info);
/* Stablish relationships between devices */
g_hash_table_foreach (masters, relate_masters, object);
g_hash_table_destroy (masters);
g_hash_table_foreach (slaves, relate_slaves, object);
g_hash_table_destroy (slaves);
/* Connect to hierarchy change events */
screen = gdk_display_get_default_screen (display);
XISetMask (mask, XI_HierarchyChanged);
XISetMask (mask, XI_DeviceChanged);
event_mask.deviceid = XIAllDevices;
event_mask.mask_len = sizeof (mask);
event_mask.mask = mask;
_gdk_x11_device_manager_xi2_select_events (GDK_DEVICE_MANAGER (object),
GDK_WINDOW_XID (gdk_screen_get_root_window (screen)),
&event_mask);
}
static void
gdk_x11_device_manager_xi2_dispose (GObject *object)
{
GdkX11DeviceManagerXI2 *device_manager;
device_manager = GDK_X11_DEVICE_MANAGER_XI2 (object);
g_list_free_full (device_manager->devices, g_object_unref);
device_manager->devices = NULL;
if (device_manager->id_table)
{
g_hash_table_destroy (device_manager->id_table);
device_manager->id_table = NULL;
}
G_OBJECT_CLASS (gdk_x11_device_manager_xi2_parent_class)->dispose (object);
}
static GList *
gdk_x11_device_manager_xi2_list_devices (GdkDeviceManager *device_manager,
GdkDeviceType type)
{
GdkX11DeviceManagerXI2 *device_manager_xi2;
GList *cur, *list = NULL;
device_manager_xi2 = GDK_X11_DEVICE_MANAGER_XI2 (device_manager);
for (cur = device_manager_xi2->devices; cur; cur = cur->next)
{
GdkDevice *dev = cur->data;
if (type == gdk_device_get_device_type (dev))
list = g_list_prepend (list, dev);
}
return list;
}
static GdkDevice *
gdk_x11_device_manager_xi2_get_client_pointer (GdkDeviceManager *device_manager)
{
GdkX11DeviceManagerXI2 *device_manager_xi2;
GdkDisplay *display;
int device_id;
device_manager_xi2 = (GdkX11DeviceManagerXI2 *) device_manager;
display = gdk_device_manager_get_display (device_manager);
XIGetClientPointer (GDK_DISPLAY_XDISPLAY (display),
None, &device_id);
return g_hash_table_lookup (device_manager_xi2->id_table,
GINT_TO_POINTER (device_id));
}
static void
gdk_x11_device_manager_xi2_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GdkX11DeviceManagerXI2 *device_manager;
device_manager = GDK_X11_DEVICE_MANAGER_XI2 (object);
switch (prop_id)
{
case PROP_OPCODE:
device_manager->opcode = g_value_get_int (value);
break;
case PROP_MAJOR:
device_manager->major = g_value_get_int (value);
break;
case PROP_MINOR:
device_manager->minor = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdk_x11_device_manager_xi2_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GdkX11DeviceManagerXI2 *device_manager;
device_manager = GDK_X11_DEVICE_MANAGER_XI2 (object);
switch (prop_id)
{
case PROP_OPCODE:
g_value_set_int (value, device_manager->opcode);
break;
case PROP_MAJOR:
g_value_set_int (value, device_manager->major);
break;
case PROP_MINOR:
g_value_set_int (value, device_manager->minor);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdk_x11_device_manager_xi2_event_translator_init (GdkEventTranslatorIface *iface)
{
iface->translate_event = gdk_x11_device_manager_xi2_translate_event;
iface->get_handled_events = gdk_x11_device_manager_xi2_get_handled_events;
iface->select_window_events = gdk_x11_device_manager_xi2_select_window_events;
iface->get_window = gdk_x11_device_manager_xi2_get_window;
}
static void
handle_hierarchy_changed (GdkX11DeviceManagerXI2 *device_manager,
XIHierarchyEvent *ev)
{
GdkDisplay *display;
Display *xdisplay;
XIDeviceInfo *info;
int ndevices;
gint i;
display = gdk_device_manager_get_display (GDK_DEVICE_MANAGER (device_manager));
xdisplay = GDK_DISPLAY_XDISPLAY (display);
for (i = 0; i < ev->num_info; i++)
{
if (ev->info[i].flags & XIDeviceEnabled)
{
gdk_x11_display_error_trap_push (display);
info = XIQueryDevice (xdisplay, ev->info[i].deviceid, &ndevices);
gdk_x11_display_error_trap_pop_ignored (display);
if (info)
{
add_device (device_manager, &info[0], TRUE);
XIFreeDeviceInfo (info);
}
}
else if (ev->info[i].flags & XIDeviceDisabled)
remove_device (device_manager, ev->info[i].deviceid);
else if (ev->info[i].flags & XISlaveAttached ||
ev->info[i].flags & XISlaveDetached)
{
GdkDevice *master, *slave;
slave = g_hash_table_lookup (device_manager->id_table,
GINT_TO_POINTER (ev->info[i].deviceid));
if (!slave)
continue;
/* Remove old master info */
master = gdk_device_get_associated_device (slave);
if (master)
{
_gdk_device_remove_slave (master, slave);
_gdk_device_set_associated_device (slave, NULL);
g_signal_emit_by_name (device_manager, "device-changed", master);
}
/* Add new master if it's an attachment event */
if (ev->info[i].flags & XISlaveAttached)
{
gdk_x11_display_error_trap_push (display);
info = XIQueryDevice (xdisplay, ev->info[i].deviceid, &ndevices);
gdk_x11_display_error_trap_pop_ignored (display);
if (info)
{
master = g_hash_table_lookup (device_manager->id_table,
GINT_TO_POINTER (info->attachment));
XIFreeDeviceInfo (info);
}
if (master)
{
_gdk_device_set_associated_device (slave, master);
_gdk_device_add_slave (master, slave);
g_signal_emit_by_name (device_manager, "device-changed", master);
}
}
g_signal_emit_by_name (device_manager, "device-changed", slave);
}
}
}
static void
handle_device_changed (GdkX11DeviceManagerXI2 *device_manager,
XIDeviceChangedEvent *ev)
{
GdkDisplay *display;
GdkDevice *device, *source_device;
display = gdk_device_manager_get_display (GDK_DEVICE_MANAGER (device_manager));
device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (ev->deviceid));
source_device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (ev->sourceid));
if (device)
{
_gdk_device_reset_axes (device);
translate_device_classes (display, device, ev->classes, ev->num_classes);
g_signal_emit_by_name (G_OBJECT (device), "changed");
}
if (source_device)
_gdk_device_xi2_reset_scroll_valuators (GDK_X11_DEVICE_XI2 (source_device));
}
static GdkCrossingMode
translate_crossing_mode (gint mode)
{
switch (mode)
{
case NotifyNormal:
return GDK_CROSSING_NORMAL;
case NotifyGrab:
return GDK_CROSSING_GRAB;
case NotifyUngrab:
return GDK_CROSSING_UNGRAB;
default:
g_assert_not_reached ();
}
}
static GdkNotifyType
translate_notify_type (gint detail)
{
switch (detail)
{
case NotifyInferior:
return GDK_NOTIFY_INFERIOR;
case NotifyAncestor:
return GDK_NOTIFY_ANCESTOR;
case NotifyVirtual:
return GDK_NOTIFY_VIRTUAL;
case NotifyNonlinear:
return GDK_NOTIFY_NONLINEAR;
case NotifyNonlinearVirtual:
return GDK_NOTIFY_NONLINEAR_VIRTUAL;
default:
g_assert_not_reached ();
}
}
static gboolean
set_screen_from_root (GdkDisplay *display,
GdkEvent *event,
Window xrootwin)
{
GdkScreen *screen;
screen = _gdk_x11_display_screen_for_xrootwin (display, xrootwin);
if (screen)
{
gdk_event_set_screen (event, screen);
return TRUE;
}
return FALSE;
}
static void
set_user_time (GdkEvent *event)
{
GdkWindow *window;
guint32 time;
window = gdk_window_get_toplevel (event->any.window);
g_return_if_fail (GDK_IS_WINDOW (window));
time = gdk_event_get_time (event);
/* If an event doesn't have a valid timestamp, we shouldn't use it
* to update the latest user interaction time.
*/
if (time != GDK_CURRENT_TIME)
gdk_x11_window_set_user_time (window, time);
}
static gdouble *
translate_axes (GdkDevice *device,
gdouble x,
gdouble y,
GdkWindow *window,
XIValuatorState *valuators)
{
guint n_axes, i;
gdouble *axes;
gdouble *vals;
g_object_get (device, "n-axes", &n_axes, NULL);
axes = g_new0 (gdouble, n_axes);
vals = valuators->values;
for (i = 0; i < valuators->mask_len * 8; i++)
{
GdkAxisUse use;
gdouble val;
if (!XIMaskIsSet (valuators->mask, i))
continue;
use = gdk_device_get_axis_use (device, i);
val = *vals++;
switch (use)
{
case GDK_AXIS_X:
case GDK_AXIS_Y:
if (gdk_device_get_mode (device) == GDK_MODE_WINDOW)
_gdk_device_translate_window_coord (device, window, i, val, &axes[i]);
else
{
if (use == GDK_AXIS_X)
axes[i] = x;
else
axes[i] = y;
}
break;
default:
_gdk_device_translate_axis (device, i, val, &axes[i]);
break;
}
}
return axes;
}
static gboolean
is_parent_of (GdkWindow *parent,
GdkWindow *child)
{
GdkWindow *w;
w = child;
while (w != NULL)
{
if (w == parent)
return TRUE;
w = gdk_window_get_parent (w);
}
return FALSE;
}
static gboolean
get_event_window (GdkEventTranslator *translator,
XIEvent *ev,
GdkWindow **window_p)
{
GdkDisplay *display;
GdkWindow *window = NULL;
gboolean should_have_window = TRUE;
display = gdk_device_manager_get_display (GDK_DEVICE_MANAGER (translator));
switch (ev->evtype)
{
case XI_KeyPress:
case XI_KeyRelease:
case XI_ButtonPress:
case XI_ButtonRelease:
case XI_Motion:
#ifdef XINPUT_2_2
case XI_TouchUpdate:
case XI_TouchBegin:
case XI_TouchEnd:
#endif /* XINPUT_2_2 */
{
XIDeviceEvent *xev = (XIDeviceEvent *) ev;
window = gdk_x11_window_lookup_for_display (display, xev->event);
/* Apply keyboard grabs to non-native windows */
if (ev->evtype == XI_KeyPress || ev->evtype == XI_KeyRelease)
{
GdkDeviceGrabInfo *info;
GdkDevice *device;
gulong serial;
device = g_hash_table_lookup (GDK_X11_DEVICE_MANAGER_XI2 (translator)->id_table,
GUINT_TO_POINTER (((XIDeviceEvent *) ev)->deviceid));
serial = _gdk_display_get_next_serial (display);
info = _gdk_display_has_device_grab (display, device, serial);
if (info &&
(!is_parent_of (info->window, window) ||
!info->owner_events))
{
/* Report key event against grab window */
window = info->window;
}
}
}
break;
case XI_Enter:
case XI_Leave:
case XI_FocusIn:
case XI_FocusOut:
{
XIEnterEvent *xev = (XIEnterEvent *) ev;
window = gdk_x11_window_lookup_for_display (display, xev->event);
}
break;
default:
should_have_window = FALSE;
break;
}
*window_p = window;
if (should_have_window && !window)
return FALSE;
return TRUE;
}
static gboolean
gdk_x11_device_manager_xi2_translate_core_event (GdkEventTranslator *translator,
GdkDisplay *display,
GdkEvent *event,
XEvent *xevent)
{
GdkEventTranslatorIface *parent_iface;
gboolean keyboard = FALSE;
GdkDevice *device;
if ((xevent->type == KeyPress || xevent->type == KeyRelease) &&
(xevent->xkey.keycode == 0 || xevent->xkey.serial == 0))
{
/* The X input methods (when triggered via XFilterEvent)
* generate a core key press event with keycode 0 to signal the
* end of a key sequence. We use the core translate_event
* implementation to translate this event.
*
* Other less educated IM modules like to filter every keypress,
* only to have these replaced by their own homegrown events,
* these events oddly have serial=0, so we try to catch these.
*
* This is just a bandaid fix to keep xim working with a single
* keyboard until XFilterEvent learns about XI2.
*/
keyboard = TRUE;
}
else if (xevent->xany.send_event)
{
/* If another process sends us core events, process them; we
* assume that it won't send us redundant core and XI2 events.
* (At the moment, it's not possible to send XI2 events anyway.
* In the future, an app that was trying to decide whether to
* send core or XI2 events could look at the event mask on the
* window to see which kind we are listening to.)
*/
switch (xevent->type)
{
case KeyPress:
case KeyRelease:
case FocusIn:
case FocusOut:
keyboard = TRUE;
break;
case ButtonPress:
case ButtonRelease:
case MotionNotify:
case EnterNotify:
case LeaveNotify:
break;
default:
return FALSE;
}
}
else
return FALSE;
parent_iface = g_type_interface_peek_parent (GDK_EVENT_TRANSLATOR_GET_IFACE (translator));
if (!parent_iface->translate_event (translator, display, event, xevent))
return FALSE;
/* The core device manager sets a core device on the event.
* We need to override that with an XI2 device, since we are
* using XI2.
*/
device = gdk_x11_device_manager_xi2_get_client_pointer ((GdkDeviceManager *)translator);
if (keyboard)
device = gdk_device_get_associated_device (device);
gdk_event_set_device (event, device);
return TRUE;
}
static gboolean
scroll_valuators_changed (GdkX11DeviceXI2 *device,
XIValuatorState *valuators,
gdouble *dx,
gdouble *dy)
{
gboolean has_scroll_valuators = FALSE;
GdkScrollDirection direction;
guint n_axes, i, n_val;
gdouble *vals;
n_axes = gdk_device_get_n_axes (GDK_DEVICE (device));
vals = valuators->values;
*dx = *dy = 0;
n_val = 0;
for (i = 0; i < MIN (valuators->mask_len * 8, n_axes); i++)
{
gdouble delta;
if (!XIMaskIsSet (valuators->mask, i))
continue;
if (_gdk_x11_device_xi2_get_scroll_delta (device, i, vals[n_val],
&direction, &delta))
{
has_scroll_valuators = TRUE;
if (direction == GDK_SCROLL_UP ||
direction == GDK_SCROLL_DOWN)
*dy = delta;
else
*dx = delta;
}
n_val++;
}
return has_scroll_valuators;
}
static gboolean
gdk_x11_device_manager_xi2_translate_event (GdkEventTranslator *translator,
GdkDisplay *display,
GdkEvent *event,
XEvent *xevent)
{
GdkX11DeviceManagerXI2 *device_manager;
XGenericEventCookie *cookie;
gboolean return_val = TRUE;
GdkWindow *window;
XIEvent *ev;
device_manager = (GdkX11DeviceManagerXI2 *) translator;
cookie = &xevent->xcookie;
if (xevent->type != GenericEvent)
return gdk_x11_device_manager_xi2_translate_core_event (translator, display, event, xevent);
else if (cookie->extension != device_manager->opcode)
return FALSE;
ev = (XIEvent *) cookie->data;
if (!ev)
return FALSE;
if (!get_event_window (translator, ev, &window))
return FALSE;
if (window && GDK_WINDOW_DESTROYED (window))
return FALSE;
if (ev->evtype == XI_Motion ||
ev->evtype == XI_ButtonRelease)
{
if (_gdk_x11_moveresize_handle_event (xevent))
return FALSE;
}
switch (ev->evtype)
{
case XI_HierarchyChanged:
handle_hierarchy_changed (device_manager,
(XIHierarchyEvent *) ev);
return_val = FALSE;
break;
case XI_DeviceChanged:
handle_device_changed (device_manager,
(XIDeviceChangedEvent *) ev);
return_val = FALSE;
break;
case XI_KeyPress:
case XI_KeyRelease:
{
XIDeviceEvent *xev = (XIDeviceEvent *) ev;
GdkKeymap *keymap = gdk_keymap_get_for_display (display);
GdkModifierType consumed, state;
GdkDevice *device, *source_device;
event->key.type = xev->evtype == XI_KeyPress ? GDK_KEY_PRESS : GDK_KEY_RELEASE;
event->key.window = window;
event->key.time = xev->time;
event->key.state = _gdk_x11_device_xi2_translate_state (&xev->mods, &xev->buttons, &xev->group);
event->key.group = xev->group.effective;
event->key.hardware_keycode = xev->detail;
event->key.is_modifier = gdk_x11_keymap_key_is_modifier (keymap, event->key.hardware_keycode);
device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->deviceid));
gdk_event_set_device (event, device);
source_device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->sourceid));
gdk_event_set_source_device (event, source_device);
event->key.keyval = GDK_KEY_VoidSymbol;
gdk_keymap_translate_keyboard_state (keymap,
event->key.hardware_keycode,
event->key.state,
event->key.group,
&event->key.keyval,
NULL, NULL, &consumed);
state = event->key.state & ~consumed;
_gdk_x11_keymap_add_virt_mods (keymap, &state);
event->key.state |= state;
_gdk_x11_event_translate_keyboard_string (&event->key);
if (ev->evtype == XI_KeyPress)
set_user_time (event);
/* FIXME: emulate autorepeat on key
* release? XI2 seems attached to Xkb.
*/
}
break;
case XI_ButtonPress:
case XI_ButtonRelease:
{
XIDeviceEvent *xev = (XIDeviceEvent *) ev;
GdkDevice *source_device;
if (ev->evtype == XI_ButtonRelease &&
(xev->detail >= 4 && xev->detail <= 7))
return FALSE;
else if (ev->evtype == XI_ButtonPress &&
(xev->detail >= 4 && xev->detail <= 7))
{
/* Button presses of button 4-7 are scroll events */
event->scroll.type = GDK_SCROLL;
if (xev->detail == 4)
event->scroll.direction = GDK_SCROLL_UP;
else if (xev->detail == 5)
event->scroll.direction = GDK_SCROLL_DOWN;
else if (xev->detail == 6)
event->scroll.direction = GDK_SCROLL_LEFT;
else
event->scroll.direction = GDK_SCROLL_RIGHT;
event->scroll.window = window;
event->scroll.time = xev->time;
event->scroll.x = (gdouble) xev->event_x;
event->scroll.y = (gdouble) xev->event_y;
event->scroll.x_root = (gdouble) xev->root_x;
event->scroll.y_root = (gdouble) xev->root_y;
event->scroll.delta_x = 0;
event->scroll.delta_y = 0;
event->scroll.device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->deviceid));
source_device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->sourceid));
gdk_event_set_source_device (event, source_device);
event->scroll.state = _gdk_x11_device_xi2_translate_state (&xev->mods, &xev->buttons, &xev->group);
#ifdef XINPUT_2_2
if (xev->flags & XIPointerEmulated)
_gdk_event_set_pointer_emulated (event, TRUE);
#endif
}
else
{
event->button.type = (ev->evtype == XI_ButtonPress) ? GDK_BUTTON_PRESS : GDK_BUTTON_RELEASE;
event->button.window = window;
event->button.time = xev->time;
event->button.x = (gdouble) xev->event_x;
event->button.y = (gdouble) xev->event_y;
event->button.x_root = (gdouble) xev->root_x;
event->button.y_root = (gdouble) xev->root_y;
event->button.device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->deviceid));
source_device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->sourceid));
gdk_event_set_source_device (event, source_device);
event->button.axes = translate_axes (event->button.device,
event->button.x,
event->button.y,
event->button.window,
&xev->valuators);
if (gdk_device_get_mode (event->button.device) == GDK_MODE_WINDOW)
{
GdkDevice *device = event->button.device;
/* Update event coordinates from axes */
gdk_device_get_axis (device, event->button.axes, GDK_AXIS_X, &event->button.x);
gdk_device_get_axis (device, event->button.axes, GDK_AXIS_Y, &event->button.y);
}
event->button.state = _gdk_x11_device_xi2_translate_state (&xev->mods, &xev->buttons, &xev->group);
event->button.button = xev->detail;
}
#ifdef XINPUT_2_2
if (xev->flags & XIPointerEmulated)
_gdk_event_set_pointer_emulated (event, TRUE);
#endif
if (return_val == FALSE)
break;
if (!set_screen_from_root (display, event, xev->root))
{
return_val = FALSE;
break;
}
if (ev->evtype == XI_ButtonPress)
set_user_time (event);
break;
}
case XI_Motion:
{
XIDeviceEvent *xev = (XIDeviceEvent *) ev;
GdkDevice *source_device, *device;
gdouble delta_x, delta_y;
source_device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->sourceid));
device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->deviceid));
/* When scrolling, X might send events twice here; once with both the
* device and the source device set to the physical device, and once
* with the device set to the master device.
* Since we are only interested in the latter, and
* scroll_valuators_changed() updates the valuator cache for the
* source device, we need to explicitly ignore the first event in
* order to get the correct delta for the second.
*/
if (gdk_device_get_device_type (device) != GDK_DEVICE_TYPE_SLAVE &&
scroll_valuators_changed (GDK_X11_DEVICE_XI2 (source_device),
&xev->valuators, &delta_x, &delta_y))
{
event->scroll.type = GDK_SCROLL;
event->scroll.direction = GDK_SCROLL_SMOOTH;
GDK_NOTE(EVENTS,
g_message ("smooth scroll: %s\n\tdevice: %u\n\tsource device: %u\n\twindow %ld\n\tdeltas: %f %f",
#ifdef XINPUT_2_2
(xev->flags & XIPointerEmulated) ? "emulated" : "",
#else
"",
#endif
xev->deviceid, xev->sourceid,
xev->event, delta_x, delta_y));
event->scroll.window = window;
event->scroll.time = xev->time;
event->scroll.x = (gdouble) xev->event_x;
event->scroll.y = (gdouble) xev->event_y;
event->scroll.x_root = (gdouble) xev->root_x;
event->scroll.y_root = (gdouble) xev->root_y;
event->scroll.delta_x = delta_x;
event->scroll.delta_y = delta_y;
event->scroll.device = device;
gdk_event_set_source_device (event, source_device);
event->scroll.state = _gdk_x11_device_xi2_translate_state (&xev->mods, &xev->buttons, &xev->group);
break;
}
event->motion.type = GDK_MOTION_NOTIFY;
event->motion.window = window;
event->motion.time = xev->time;
event->motion.x = (gdouble) xev->event_x;
event->motion.y = (gdouble) xev->event_y;
event->motion.x_root = (gdouble) xev->root_x;
event->motion.y_root = (gdouble) xev->root_y;
event->motion.device = device;
gdk_event_set_source_device (event, source_device);
event->motion.state = _gdk_x11_device_xi2_translate_state (&xev->mods, &xev->buttons, &xev->group);
#ifdef XINPUT_2_2
if (xev->flags & XIPointerEmulated)
_gdk_event_set_pointer_emulated (event, TRUE);
#endif
/* There doesn't seem to be motion hints in XI */
event->motion.is_hint = FALSE;
event->motion.axes = translate_axes (event->motion.device,
event->motion.x,
event->motion.y,
event->motion.window,
&xev->valuators);
if (gdk_device_get_mode (event->motion.device) == GDK_MODE_WINDOW)
{
GdkDevice *device = event->motion.device;
/* Update event coordinates from axes */
gdk_device_get_axis (device, event->motion.axes, GDK_AXIS_X, &event->motion.x);
gdk_device_get_axis (device, event->motion.axes, GDK_AXIS_Y, &event->motion.y);
}
}
break;
#ifdef XINPUT_2_2
case XI_TouchBegin:
case XI_TouchEnd:
{
XIDeviceEvent *xev = (XIDeviceEvent *) ev;
GdkDevice *source_device;
GDK_NOTE(EVENTS,
g_message ("touch %s:\twindow %ld\n\ttouch id: %u\n\tpointer emulating: %d",
ev->evtype == XI_TouchBegin ? "begin" : "end",
xev->event,
xev->detail,
xev->flags & XITouchEmulatingPointer));
if (ev->evtype == XI_TouchBegin)
event->touch.type = GDK_TOUCH_BEGIN;
else if (ev->evtype == XI_TouchEnd)
event->touch.type = GDK_TOUCH_END;
event->touch.window = window;
event->touch.time = xev->time;
event->touch.x = (gdouble) xev->event_x;
event->touch.y = (gdouble) xev->event_y;
event->touch.x_root = (gdouble) xev->root_x;
event->touch.y_root = (gdouble) xev->root_y;
event->touch.device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->deviceid));
source_device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->sourceid));
gdk_event_set_source_device (event, source_device);
event->touch.axes = translate_axes (event->touch.device,
event->touch.x,
event->touch.y,
event->touch.window,
&xev->valuators);
if (gdk_device_get_mode (event->touch.device) == GDK_MODE_WINDOW)
{
GdkDevice *device = event->touch.device;
/* Update event coordinates from axes */
gdk_device_get_axis (device, event->touch.axes, GDK_AXIS_X, &event->touch.x);
gdk_device_get_axis (device, event->touch.axes, GDK_AXIS_Y, &event->touch.y);
}
event->touch.state = _gdk_x11_device_xi2_translate_state (&xev->mods, &xev->buttons, &xev->group);
if (ev->evtype == XI_TouchBegin)
event->touch.state |= GDK_BUTTON1_MASK;
event->touch.sequence = GUINT_TO_POINTER (xev->detail);
if (xev->flags & XITouchEmulatingPointer)
{
event->touch.emulating_pointer = TRUE;
_gdk_event_set_pointer_emulated (event, TRUE);
}
if (return_val == FALSE)
break;
if (!set_screen_from_root (display, event, xev->root))
{
return_val = FALSE;
break;
}
if (ev->evtype == XI_TouchBegin)
set_user_time (event);
}
break;
case XI_TouchUpdate:
{
XIDeviceEvent *xev = (XIDeviceEvent *) ev;
GdkDevice *source_device;
GDK_NOTE(EVENTS,
g_message ("touch update:\twindow %ld\n\ttouch id: %u\n\tpointer emulating: %d",
xev->event,
xev->detail,
xev->flags & XITouchEmulatingPointer));
event->touch.window = window;
event->touch.sequence = GUINT_TO_POINTER (xev->detail);
event->touch.type = GDK_TOUCH_UPDATE;
event->touch.time = xev->time;
event->touch.x = (gdouble) xev->event_x;
event->touch.y = (gdouble) xev->event_y;
event->touch.x_root = (gdouble) xev->root_x;
event->touch.y_root = (gdouble) xev->root_y;
event->touch.device = g_hash_table_lookup (device_manager->id_table,
GINT_TO_POINTER (xev->deviceid));
source_device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->sourceid));
gdk_event_set_source_device (event, source_device);
event->touch.state = _gdk_x11_device_xi2_translate_state (&xev->mods, &xev->buttons, &xev->group);
event->touch.state |= GDK_BUTTON1_MASK;
if (xev->flags & XITouchEmulatingPointer)
{
event->touch.emulating_pointer = TRUE;
_gdk_event_set_pointer_emulated (event, TRUE);
}
event->touch.axes = translate_axes (event->touch.device,
event->touch.x,
event->touch.y,
event->touch.window,
&xev->valuators);
if (gdk_device_get_mode (event->touch.device) == GDK_MODE_WINDOW)
{
GdkDevice *device = event->touch.device;
/* Update event coordinates from axes */
gdk_device_get_axis (device, event->touch.axes, GDK_AXIS_X, &event->touch.x);
gdk_device_get_axis (device, event->touch.axes, GDK_AXIS_Y, &event->touch.y);
}
}
break;
#endif /* XINPUT_2_2 */
case XI_Enter:
case XI_Leave:
{
XIEnterEvent *xev = (XIEnterEvent *) ev;
GdkDevice *device, *source_device;
event->crossing.type = (ev->evtype == XI_Enter) ? GDK_ENTER_NOTIFY : GDK_LEAVE_NOTIFY;
event->crossing.x = (gdouble) xev->event_x;
event->crossing.y = (gdouble) xev->event_y;
event->crossing.x_root = (gdouble) xev->root_x;
event->crossing.y_root = (gdouble) xev->root_y;
event->crossing.time = xev->time;
event->crossing.focus = xev->focus;
event->crossing.window = window;
event->crossing.subwindow = gdk_x11_window_lookup_for_display (display, xev->child);
device = g_hash_table_lookup (device_manager->id_table,
GINT_TO_POINTER (xev->deviceid));
gdk_event_set_device (event, device);
source_device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->sourceid));
gdk_event_set_source_device (event, source_device);
if (gdk_device_get_device_type (source_device) != GDK_DEVICE_TYPE_MASTER)
_gdk_device_xi2_reset_scroll_valuators (GDK_X11_DEVICE_XI2 (source_device));
else
{
GList *slaves, *l;
slaves = gdk_device_list_slave_devices (source_device);
for (l = slaves; l; l = l->next)
_gdk_device_xi2_reset_scroll_valuators (GDK_X11_DEVICE_XI2 (l->data));
g_list_free (slaves);
}
event->crossing.mode = translate_crossing_mode (xev->mode);
event->crossing.detail = translate_notify_type (xev->detail);
event->crossing.state = _gdk_x11_device_xi2_translate_state (&xev->mods, &xev->buttons, &xev->group);
}
break;
case XI_FocusIn:
case XI_FocusOut:
{
if (window)
{
XIEnterEvent *xev = (XIEnterEvent *) ev;
GdkDevice *device, *source_device;
device = g_hash_table_lookup (device_manager->id_table,
GINT_TO_POINTER (xev->deviceid));
source_device = g_hash_table_lookup (device_manager->id_table,
GUINT_TO_POINTER (xev->sourceid));
_gdk_device_manager_core_handle_focus (window,
xev->event,
device,
source_device,
(ev->evtype == XI_FocusIn) ? TRUE : FALSE,
xev->detail,
xev->mode);
}
return_val = FALSE;
}
break;
default:
return_val = FALSE;
break;
}
event->any.send_event = cookie->send_event;
if (return_val)
{
if (event->any.window)
g_object_ref (event->any.window);
if (((event->any.type == GDK_ENTER_NOTIFY) ||
(event->any.type == GDK_LEAVE_NOTIFY)) &&
(event->crossing.subwindow != NULL))
g_object_ref (event->crossing.subwindow);
}
else
{
/* Mark this event as having no resources to be freed */
event->any.window = NULL;
event->any.type = GDK_NOTHING;
}
return return_val;
}
static GdkEventMask
gdk_x11_device_manager_xi2_get_handled_events (GdkEventTranslator *translator)
{
return (GDK_KEY_PRESS_MASK |
GDK_KEY_RELEASE_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_SCROLL_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON2_MOTION_MASK |
GDK_BUTTON3_MOTION_MASK |
GDK_BUTTON_MOTION_MASK |
GDK_FOCUS_CHANGE_MASK |
GDK_TOUCH_MASK);
}
static void
gdk_x11_device_manager_xi2_select_window_events (GdkEventTranslator *translator,
Window window,
GdkEventMask evmask)
{
GdkDeviceManager *device_manager;
XIEventMask event_mask;
device_manager = GDK_DEVICE_MANAGER (translator);
event_mask.deviceid = XIAllMasterDevices;
event_mask.mask = _gdk_x11_device_xi2_translate_event_mask (GDK_X11_DEVICE_MANAGER_XI2 (device_manager),
evmask,
&event_mask.mask_len);
_gdk_x11_device_manager_xi2_select_events (device_manager, window, &event_mask);
g_free (event_mask.mask);
}
static GdkWindow *
gdk_x11_device_manager_xi2_get_window (GdkEventTranslator *translator,
XEvent *xevent)
{
GdkX11DeviceManagerXI2 *device_manager;
XIEvent *ev;
GdkWindow *window = NULL;
device_manager = (GdkX11DeviceManagerXI2 *) translator;
if (xevent->type != GenericEvent ||
xevent->xcookie.extension != device_manager->opcode)
return NULL;
ev = (XIEvent *) xevent->xcookie.data;
get_event_window (translator, ev, &window);
return window;
}
GdkDevice *
_gdk_x11_device_manager_xi2_lookup (GdkX11DeviceManagerXI2 *device_manager_xi2,
gint device_id)
{
return g_hash_table_lookup (device_manager_xi2->id_table,
GINT_TO_POINTER (device_id));
}
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