b1be543ba5
XIQueryPointer() allocates it using malloc() (without any mention in the documentation...).
732 lines
23 KiB
C
732 lines
23 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "gdkx11device-xi2.h"
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#include "gdkdeviceprivate.h"
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#include "gdkintl.h"
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#include "gdkasync.h"
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#include "gdkprivate-x11.h"
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#include <stdlib.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/extensions/XInput2.h>
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struct _GdkX11DeviceXI2
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{
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GdkDevice parent_instance;
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gint device_id;
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};
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struct _GdkX11DeviceXI2Class
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{
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GdkDeviceClass parent_class;
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};
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static void gdk_x11_device_xi2_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gdk_x11_device_xi2_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gdk_x11_device_xi2_get_state (GdkDevice *device,
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GdkWindow *window,
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gdouble *axes,
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GdkModifierType *mask);
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static void gdk_x11_device_xi2_set_window_cursor (GdkDevice *device,
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GdkWindow *window,
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GdkCursor *cursor);
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static void gdk_x11_device_xi2_warp (GdkDevice *device,
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GdkScreen *screen,
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gint x,
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gint y);
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static gboolean gdk_x11_device_xi2_query_state (GdkDevice *device,
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GdkWindow *window,
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GdkWindow **root_window,
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GdkWindow **child_window,
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gint *root_x,
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gint *root_y,
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gint *win_x,
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gint *win_y,
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GdkModifierType *mask);
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static GdkGrabStatus gdk_x11_device_xi2_grab (GdkDevice *device,
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GdkWindow *window,
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gboolean owner_events,
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GdkEventMask event_mask,
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GdkWindow *confine_to,
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GdkCursor *cursor,
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guint32 time_);
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static void gdk_x11_device_xi2_ungrab (GdkDevice *device,
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guint32 time_);
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static GdkWindow * gdk_x11_device_xi2_window_at_position (GdkDevice *device,
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gint *win_x,
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gint *win_y,
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GdkModifierType *mask,
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gboolean get_toplevel);
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static void gdk_x11_device_xi2_select_window_events (GdkDevice *device,
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GdkWindow *window,
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GdkEventMask event_mask);
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G_DEFINE_TYPE (GdkX11DeviceXI2, gdk_x11_device_xi2, GDK_TYPE_DEVICE)
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enum {
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PROP_0,
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PROP_DEVICE_ID
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};
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static void
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gdk_x11_device_xi2_class_init (GdkX11DeviceXI2Class *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
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object_class->get_property = gdk_x11_device_xi2_get_property;
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object_class->set_property = gdk_x11_device_xi2_set_property;
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device_class->get_state = gdk_x11_device_xi2_get_state;
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device_class->set_window_cursor = gdk_x11_device_xi2_set_window_cursor;
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device_class->warp = gdk_x11_device_xi2_warp;
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device_class->query_state = gdk_x11_device_xi2_query_state;
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device_class->grab = gdk_x11_device_xi2_grab;
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device_class->ungrab = gdk_x11_device_xi2_ungrab;
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device_class->window_at_position = gdk_x11_device_xi2_window_at_position;
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device_class->select_window_events = gdk_x11_device_xi2_select_window_events;
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g_object_class_install_property (object_class,
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PROP_DEVICE_ID,
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g_param_spec_int ("device-id",
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P_("Device ID"),
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P_("Device identifier"),
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0, G_MAXINT, 0,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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}
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static void
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gdk_x11_device_xi2_init (GdkX11DeviceXI2 *device)
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{
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}
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static void
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gdk_x11_device_xi2_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (object);
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switch (prop_id)
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{
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case PROP_DEVICE_ID:
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g_value_set_int (value, device_xi2->device_id);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gdk_x11_device_xi2_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (object);
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switch (prop_id)
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{
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case PROP_DEVICE_ID:
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device_xi2->device_id = g_value_get_int (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gdk_x11_device_xi2_get_state (GdkDevice *device,
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GdkWindow *window,
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gdouble *axes,
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GdkModifierType *mask)
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{
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GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
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GdkDisplay *display;
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XIDeviceInfo *info;
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gint i, j, ndevices;
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display = gdk_device_get_display (device);
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if (axes)
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{
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info = XIQueryDevice(GDK_DISPLAY_XDISPLAY (display),
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device_xi2->device_id, &ndevices);
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for (i = 0, j = 0; i < info->num_classes; i++)
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{
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XIAnyClassInfo *class_info = info->classes[i];
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GdkAxisUse use;
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gdouble value;
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if (class_info->type != XIValuatorClass)
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continue;
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value = ((XIValuatorClassInfo *) class_info)->value;
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use = _gdk_device_get_axis_use (device, j);
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switch (use)
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{
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case GDK_AXIS_X:
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case GDK_AXIS_Y:
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case GDK_AXIS_IGNORE:
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if (gdk_device_get_mode (device) == GDK_MODE_WINDOW)
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_gdk_device_translate_window_coord (device, window, j, value, &axes[j]);
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else
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{
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gint root_x, root_y;
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/* FIXME: Maybe root coords chaching should happen here */
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gdk_window_get_origin (window, &root_x, &root_y);
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_gdk_device_translate_screen_coord (device, window,
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root_x, root_y,
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j, value,
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&axes[j]);
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}
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break;
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default:
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_gdk_device_translate_axis (device, j, value, &axes[j]);
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break;
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}
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j++;
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}
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XIFreeDeviceInfo (info);
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}
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if (mask)
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gdk_x11_device_xi2_query_state (device, window,
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NULL, NULL,
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NULL, NULL,
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NULL, NULL,
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mask);
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}
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static void
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gdk_x11_device_xi2_set_window_cursor (GdkDevice *device,
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GdkWindow *window,
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GdkCursor *cursor)
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{
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GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
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/* Non-master devices don't have a cursor */
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if (gdk_device_get_device_type (device) != GDK_DEVICE_TYPE_MASTER)
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return;
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if (cursor)
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XIDefineCursor (GDK_WINDOW_XDISPLAY (window),
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device_xi2->device_id,
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GDK_WINDOW_XID (window),
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gdk_x11_cursor_get_xcursor (cursor));
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else
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XIUndefineCursor (GDK_WINDOW_XDISPLAY (window),
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device_xi2->device_id,
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GDK_WINDOW_XID (window));
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}
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static void
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gdk_x11_device_xi2_warp (GdkDevice *device,
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GdkScreen *screen,
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gint x,
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gint y)
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{
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GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
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Window dest;
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dest = GDK_WINDOW_XID (gdk_screen_get_root_window (screen));
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XIWarpPointer (GDK_SCREEN_XDISPLAY (screen),
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device_xi2->device_id,
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None, dest,
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0, 0, 0, 0, x, y);
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}
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static gboolean
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gdk_x11_device_xi2_query_state (GdkDevice *device,
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GdkWindow *window,
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GdkWindow **root_window,
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GdkWindow **child_window,
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gint *root_x,
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gint *root_y,
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gint *win_x,
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gint *win_y,
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GdkModifierType *mask)
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{
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GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
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GdkDisplay *display;
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GdkScreen *default_screen;
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Window xroot_window, xchild_window;
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gdouble xroot_x, xroot_y, xwin_x, xwin_y;
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XIButtonState button_state;
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XIModifierState mod_state;
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XIGroupState group_state;
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if (!window || GDK_WINDOW_DESTROYED (window))
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return FALSE;
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display = gdk_window_get_display (window);
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default_screen = gdk_display_get_default_screen (display);
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if (G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
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{
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if (!XIQueryPointer (GDK_WINDOW_XDISPLAY (window),
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device_xi2->device_id,
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GDK_WINDOW_XID (window),
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&xroot_window,
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&xchild_window,
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&xroot_x, &xroot_y,
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&xwin_x, &xwin_y,
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&button_state,
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&mod_state,
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&group_state))
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return FALSE;
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}
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else
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{
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XSetWindowAttributes attributes;
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Display *xdisplay;
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Window xwindow, w;
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/* FIXME: untrusted clients not multidevice-safe */
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xdisplay = GDK_SCREEN_XDISPLAY (default_screen);
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xwindow = GDK_SCREEN_XROOTWIN (default_screen);
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w = XCreateWindow (xdisplay, xwindow, 0, 0, 1, 1, 0,
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CopyFromParent, InputOnly, CopyFromParent,
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0, &attributes);
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XIQueryPointer (xdisplay, device_xi2->device_id,
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w,
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&xroot_window,
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&xchild_window,
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&xroot_x, &xroot_y,
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&xwin_x, &xwin_y,
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&button_state,
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&mod_state,
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&group_state);
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XDestroyWindow (xdisplay, w);
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}
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if (root_window)
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*root_window = gdk_x11_window_lookup_for_display (display, xroot_window);
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if (child_window)
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*child_window = gdk_x11_window_lookup_for_display (display, xchild_window);
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if (root_x)
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*root_x = (gint) xroot_x;
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if (root_y)
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*root_y = (gint) xroot_y;
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if (win_x)
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*win_x = (gint) xwin_x;
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if (win_y)
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*win_y = (gint) xwin_y;
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if (mask)
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*mask = _gdk_x11_device_xi2_translate_state (&mod_state, &button_state);
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free (button_state.mask);
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return TRUE;
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}
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static GdkGrabStatus
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gdk_x11_device_xi2_grab (GdkDevice *device,
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GdkWindow *window,
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gboolean owner_events,
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GdkEventMask event_mask,
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GdkWindow *confine_to,
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GdkCursor *cursor,
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guint32 time_)
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{
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GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
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GdkDisplay *display;
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XIEventMask mask;
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Window xwindow;
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Cursor xcursor;
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gint status;
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display = gdk_device_get_display (device);
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/* FIXME: confine_to is actually unused */
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xwindow = GDK_WINDOW_XID (window);
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if (!cursor)
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xcursor = None;
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else
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{
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_gdk_x11_cursor_update_theme (cursor);
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xcursor = gdk_x11_cursor_get_xcursor (cursor);
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}
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mask.deviceid = device_xi2->device_id;
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mask.mask = _gdk_x11_device_xi2_translate_event_mask (event_mask, &mask.mask_len);
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#ifdef G_ENABLE_DEBUG
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if (_gdk_debug_flags & GDK_DEBUG_NOGRABS)
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status = GrabSuccess;
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else
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#endif
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status = XIGrabDevice (GDK_DISPLAY_XDISPLAY (display),
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device_xi2->device_id,
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xwindow,
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time_,
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xcursor,
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GrabModeAsync, GrabModeAsync,
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owner_events,
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&mask);
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g_free (mask.mask);
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_gdk_x11_display_update_grab_info (display, device, status);
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return _gdk_x11_convert_grab_status (status);
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}
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static void
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gdk_x11_device_xi2_ungrab (GdkDevice *device,
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guint32 time_)
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{
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GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
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GdkDisplay *display;
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gulong serial;
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display = gdk_device_get_display (device);
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serial = NextRequest (GDK_DISPLAY_XDISPLAY (display));
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XIUngrabDevice (GDK_DISPLAY_XDISPLAY (display), device_xi2->device_id, time_);
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_gdk_x11_display_update_grab_info_ungrab (display, device, time_, serial);
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}
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static GdkWindow *
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gdk_x11_device_xi2_window_at_position (GdkDevice *device,
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gint *win_x,
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gint *win_y,
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GdkModifierType *mask,
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gboolean get_toplevel)
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{
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GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
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GdkDisplay *display;
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GdkScreen *screen;
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Display *xdisplay;
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GdkWindow *window;
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Window xwindow, root, child, last = None;
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gdouble xroot_x, xroot_y, xwin_x, xwin_y;
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XIButtonState button_state = { 0 };
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XIModifierState mod_state;
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XIGroupState group_state;
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display = gdk_device_get_display (device);
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screen = gdk_display_get_default_screen (display);
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/* This function really only works if the mouse pointer is held still
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* during its operation. If it moves from one leaf window to another
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* than we'll end up with inaccurate values for win_x, win_y
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* and the result.
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*/
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gdk_x11_display_grab (display);
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xdisplay = GDK_SCREEN_XDISPLAY (screen);
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xwindow = GDK_SCREEN_XROOTWIN (screen);
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if (G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
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{
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XIQueryPointer (xdisplay,
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device_xi2->device_id,
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xwindow,
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&root, &child,
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&xroot_x, &xroot_y,
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&xwin_x, &xwin_y,
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&button_state,
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&mod_state,
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&group_state);
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if (root == xwindow)
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xwindow = child;
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else
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xwindow = root;
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}
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else
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{
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gint i, screens, width, height;
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GList *toplevels, *list;
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Window pointer_window, root, child;
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/* FIXME: untrusted clients case not multidevice-safe */
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pointer_window = None;
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screens = gdk_display_get_n_screens (display);
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for (i = 0; i < screens; ++i)
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{
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screen = gdk_display_get_screen (display, i);
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toplevels = gdk_screen_get_toplevel_windows (screen);
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for (list = toplevels; list != NULL; list = g_list_next (list))
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{
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window = GDK_WINDOW (list->data);
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xwindow = GDK_WINDOW_XID (window);
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/* Free previous button mask, if any */
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g_free (button_state.mask);
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gdk_x11_display_error_trap_push (display);
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XIQueryPointer (xdisplay,
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device_xi2->device_id,
|
|
xwindow,
|
|
&root, &child,
|
|
&xroot_x, &xroot_y,
|
|
&xwin_x, &xwin_y,
|
|
&button_state,
|
|
&mod_state,
|
|
&group_state);
|
|
if (gdk_x11_display_error_trap_pop (display))
|
|
continue;
|
|
if (child != None)
|
|
{
|
|
pointer_window = child;
|
|
break;
|
|
}
|
|
gdk_window_get_geometry (window, NULL, NULL, &width, &height);
|
|
if (xwin_x >= 0 && xwin_y >= 0 && xwin_x < width && xwin_y < height)
|
|
{
|
|
/* A childless toplevel, or below another window? */
|
|
XSetWindowAttributes attributes;
|
|
Window w;
|
|
|
|
free (button_state.mask);
|
|
|
|
w = XCreateWindow (xdisplay, xwindow, (int)xwin_x, (int)xwin_y, 1, 1, 0,
|
|
CopyFromParent, InputOnly, CopyFromParent,
|
|
0, &attributes);
|
|
XMapWindow (xdisplay, w);
|
|
XIQueryPointer (xdisplay,
|
|
device_xi2->device_id,
|
|
xwindow,
|
|
&root, &child,
|
|
&xroot_x, &xroot_y,
|
|
&xwin_x, &xwin_y,
|
|
&button_state,
|
|
&mod_state,
|
|
&group_state);
|
|
XDestroyWindow (xdisplay, w);
|
|
if (child == w)
|
|
{
|
|
pointer_window = xwindow;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
g_list_free (toplevels);
|
|
if (pointer_window != None)
|
|
break;
|
|
}
|
|
|
|
xwindow = pointer_window;
|
|
}
|
|
|
|
while (xwindow)
|
|
{
|
|
last = xwindow;
|
|
free (button_state.mask);
|
|
|
|
gdk_x11_display_error_trap_push (display);
|
|
XIQueryPointer (xdisplay,
|
|
device_xi2->device_id,
|
|
xwindow,
|
|
&root, &xwindow,
|
|
&xroot_x, &xroot_y,
|
|
&xwin_x, &xwin_y,
|
|
&button_state,
|
|
&mod_state,
|
|
&group_state);
|
|
if (gdk_x11_display_error_trap_pop (display))
|
|
break;
|
|
|
|
if (get_toplevel && last != root &&
|
|
(window = gdk_x11_window_lookup_for_display (display, last)) != NULL &&
|
|
GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN)
|
|
{
|
|
xwindow = last;
|
|
break;
|
|
}
|
|
}
|
|
|
|
gdk_x11_display_ungrab (display);
|
|
|
|
window = gdk_x11_window_lookup_for_display (display, last);
|
|
|
|
if (win_x)
|
|
*win_x = (window) ? (gint) xwin_x : -1;
|
|
|
|
if (win_y)
|
|
*win_y = (window) ? (gint) xwin_y : -1;
|
|
|
|
if (mask)
|
|
*mask = _gdk_x11_device_xi2_translate_state (&mod_state, &button_state);
|
|
|
|
free (button_state.mask);
|
|
|
|
return window;
|
|
}
|
|
|
|
static void
|
|
gdk_x11_device_xi2_select_window_events (GdkDevice *device,
|
|
GdkWindow *window,
|
|
GdkEventMask event_mask)
|
|
{
|
|
GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
|
|
XIEventMask evmask;
|
|
|
|
evmask.deviceid = device_xi2->device_id;
|
|
evmask.mask = _gdk_x11_device_xi2_translate_event_mask (event_mask, &evmask.mask_len);
|
|
|
|
XISelectEvents (GDK_WINDOW_XDISPLAY (window),
|
|
GDK_WINDOW_XID (window),
|
|
&evmask, 1);
|
|
|
|
g_free (evmask.mask);
|
|
}
|
|
|
|
guchar *
|
|
_gdk_x11_device_xi2_translate_event_mask (GdkEventMask event_mask,
|
|
gint *len)
|
|
{
|
|
guchar *mask;
|
|
|
|
*len = XIMaskLen (XI_LASTEVENT);
|
|
mask = g_new0 (guchar, *len);
|
|
|
|
if (event_mask & GDK_POINTER_MOTION_MASK ||
|
|
event_mask & GDK_POINTER_MOTION_HINT_MASK)
|
|
XISetMask (mask, XI_Motion);
|
|
|
|
if (event_mask & GDK_BUTTON_MOTION_MASK ||
|
|
event_mask & GDK_BUTTON1_MOTION_MASK ||
|
|
event_mask & GDK_BUTTON2_MOTION_MASK ||
|
|
event_mask & GDK_BUTTON3_MOTION_MASK)
|
|
{
|
|
XISetMask (mask, XI_ButtonPress);
|
|
XISetMask (mask, XI_ButtonRelease);
|
|
XISetMask (mask, XI_Motion);
|
|
}
|
|
|
|
if (event_mask & GDK_SCROLL_MASK)
|
|
{
|
|
XISetMask (mask, XI_ButtonPress);
|
|
XISetMask (mask, XI_ButtonRelease);
|
|
}
|
|
|
|
if (event_mask & GDK_BUTTON_PRESS_MASK)
|
|
XISetMask (mask, XI_ButtonPress);
|
|
|
|
if (event_mask & GDK_BUTTON_RELEASE_MASK)
|
|
XISetMask (mask, XI_ButtonRelease);
|
|
|
|
if (event_mask & GDK_KEY_PRESS_MASK)
|
|
XISetMask (mask, XI_KeyPress);
|
|
|
|
if (event_mask & GDK_KEY_RELEASE_MASK)
|
|
XISetMask (mask, XI_KeyRelease);
|
|
|
|
if (event_mask & GDK_ENTER_NOTIFY_MASK)
|
|
XISetMask (mask, XI_Enter);
|
|
|
|
if (event_mask & GDK_LEAVE_NOTIFY_MASK)
|
|
XISetMask (mask, XI_Leave);
|
|
|
|
if (event_mask & GDK_FOCUS_CHANGE_MASK)
|
|
{
|
|
XISetMask (mask, XI_FocusIn);
|
|
XISetMask (mask, XI_FocusOut);
|
|
}
|
|
|
|
return mask;
|
|
}
|
|
|
|
guint
|
|
_gdk_x11_device_xi2_translate_state (XIModifierState *mods_state,
|
|
XIButtonState *buttons_state)
|
|
{
|
|
guint state = 0;
|
|
|
|
if (mods_state)
|
|
state = (guint) mods_state->base | mods_state->latched | mods_state->locked;
|
|
|
|
if (buttons_state)
|
|
{
|
|
gint len, i;
|
|
|
|
/* We're only interested in the first 5 buttons */
|
|
len = MIN (5, buttons_state->mask_len * 8);
|
|
|
|
for (i = 0; i < len; i++)
|
|
{
|
|
if (!XIMaskIsSet (buttons_state->mask, i))
|
|
continue;
|
|
|
|
switch (i)
|
|
{
|
|
case 1:
|
|
state |= GDK_BUTTON1_MASK;
|
|
break;
|
|
case 2:
|
|
state |= GDK_BUTTON2_MASK;
|
|
break;
|
|
case 3:
|
|
state |= GDK_BUTTON3_MASK;
|
|
break;
|
|
case 4:
|
|
state |= GDK_BUTTON4_MASK;
|
|
break;
|
|
case 5:
|
|
state |= GDK_BUTTON5_MASK;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return state;
|
|
}
|