Pileus Git - ~andy/gtk/blob - gdk/x11/gdkdevice-xi2.c

   1 /* GDK - The GIMP Drawing Kit
   2  * Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "config.h"
  21
  22 #include "gdkx11device-xi2.h"
  23 #include "gdkdeviceprivate.h"
  24
  25 #include "gdkintl.h"
  26 #include "gdkasync.h"
  27 #include "gdkprivate-x11.h"
  28
  29 #ifdef XINPUT_2
  30
  31 #include <stdlib.h>
  32 #include <X11/Xlib.h>
  33 #include <X11/Xutil.h>
  34 #include <X11/extensions/XInput2.h>
  35
  36 #endif
  37
  38 struct _GdkX11DeviceXI2
  39 {
  40   GdkDevice parent_instance;
  41
  42   gint device_id;
  43 };
  44
  45 struct _GdkX11DeviceXI2Class
  46 {
  47   GdkDeviceClass parent_class;
  48 };
  49
  50 G_DEFINE_TYPE (GdkX11DeviceXI2, gdk_x11_device_xi2, GDK_TYPE_DEVICE)
  51
  52 #ifdef XINPUT_2
  53
  54 static void gdk_x11_device_xi2_get_property (GObject      *object,
  55                                              guint         prop_id,
  56                                              GValue       *value,
  57                                              GParamSpec   *pspec);
  58 static void gdk_x11_device_xi2_set_property (GObject      *object,
  59                                              guint         prop_id,
  60                                              const GValue *value,
  61                                              GParamSpec   *pspec);
  62
  63 static void gdk_x11_device_xi2_get_state (GdkDevice       *device,
  64                                           GdkWindow       *window,
  65                                           gdouble         *axes,
  66                                           GdkModifierType *mask);
  67 static void gdk_x11_device_xi2_set_window_cursor (GdkDevice *device,
  68                                                   GdkWindow *window,
  69                                                   GdkCursor *cursor);
  70 static void gdk_x11_device_xi2_warp (GdkDevice *device,
  71                                      GdkScreen *screen,
  72                                      gint       x,
  73                                      gint       y);
  74 static gboolean gdk_x11_device_xi2_query_state (GdkDevice        *device,
  75                                                 GdkWindow        *window,
  76                                                 GdkWindow       **root_window,
  77                                                 GdkWindow       **child_window,
  78                                                 gint             *root_x,
  79                                                 gint             *root_y,
  80                                                 gint             *win_x,
  81                                                 gint             *win_y,
  82                                                 GdkModifierType  *mask);
  83
  84 static GdkGrabStatus gdk_x11_device_xi2_grab   (GdkDevice     *device,
  85                                                 GdkWindow     *window,
  86                                                 gboolean       owner_events,
  87                                                 GdkEventMask   event_mask,
  88                                                 GdkWindow     *confine_to,
  89                                                 GdkCursor     *cursor,
  90                                                 guint32        time_);
  91 static void          gdk_x11_device_xi2_ungrab (GdkDevice     *device,
  92                                                 guint32        time_);
  93
  94 static GdkWindow * gdk_x11_device_xi2_window_at_position (GdkDevice       *device,
  95                                                           gint            *win_x,
  96                                                           gint            *win_y,
  97                                                           GdkModifierType *mask,
  98                                                           gboolean         get_toplevel);
  99 static void  gdk_x11_device_xi2_select_window_events (GdkDevice    *device,
 100                                                       GdkWindow    *window,
 101                                                       GdkEventMask  event_mask);
 102
 103
 104 enum {
 105   PROP_0,
 106   PROP_DEVICE_ID
 107 };
 108
 109 static void
 110 gdk_x11_device_xi2_class_init (GdkX11DeviceXI2Class *klass)
 111 {
 112   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 113   GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
 114
 115   object_class->get_property = gdk_x11_device_xi2_get_property;
 116   object_class->set_property = gdk_x11_device_xi2_set_property;
 117
 118   device_class->get_state = gdk_x11_device_xi2_get_state;
 119   device_class->set_window_cursor = gdk_x11_device_xi2_set_window_cursor;
 120   device_class->warp = gdk_x11_device_xi2_warp;
 121   device_class->query_state = gdk_x11_device_xi2_query_state;
 122   device_class->grab = gdk_x11_device_xi2_grab;
 123   device_class->ungrab = gdk_x11_device_xi2_ungrab;
 124   device_class->window_at_position = gdk_x11_device_xi2_window_at_position;
 125   device_class->select_window_events = gdk_x11_device_xi2_select_window_events;
 126
 127   g_object_class_install_property (object_class,
 128                                    PROP_DEVICE_ID,
 129                                    g_param_spec_int ("device-id",
 130                                                      P_("Device ID"),
 131                                                      P_("Device identifier"),
 132                                                      0, G_MAXINT, 0,
 133                                                      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 134 }
 135
 136 static void
 137 gdk_x11_device_xi2_init (GdkX11DeviceXI2 *device)
 138 {
 139 }
 140
 141 static void
 142 gdk_x11_device_xi2_get_property (GObject    *object,
 143                                  guint       prop_id,
 144                                  GValue     *value,
 145                                  GParamSpec *pspec)
 146 {
 147   GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (object);
 148
 149   switch (prop_id)
 150     {
 151     case PROP_DEVICE_ID:
 152       g_value_set_int (value, device_xi2->device_id);
 153       break;
 154     default:
 155       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 156       break;
 157     }
 158 }
 159
 160 static void
 161 gdk_x11_device_xi2_set_property (GObject      *object,
 162                                  guint         prop_id,
 163                                  const GValue *value,
 164                                  GParamSpec   *pspec)
 165 {
 166   GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (object);
 167
 168   switch (prop_id)
 169     {
 170     case PROP_DEVICE_ID:
 171       device_xi2->device_id = g_value_get_int (value);
 172       break;
 173     default:
 174       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 175       break;
 176     }
 177 }
 178
 179 static void
 180 gdk_x11_device_xi2_get_state (GdkDevice       *device,
 181                               GdkWindow       *window,
 182                               gdouble         *axes,
 183                               GdkModifierType *mask)
 184 {
 185   GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
 186
 187   if (axes)
 188     {
 189       GdkDisplay *display;
 190       XIDeviceInfo *info;
 191       gint i, j, ndevices;
 192
 193       display = gdk_device_get_display (device);
 194
 195       gdk_x11_display_error_trap_push (display);
 196       info = XIQueryDevice (GDK_DISPLAY_XDISPLAY (display),
 197                             device_xi2->device_id, &ndevices);
 198       gdk_x11_display_error_trap_pop_ignored (display);
 199
 200       for (i = 0, j = 0; info && i < info->num_classes; i++)
 201         {
 202           XIAnyClassInfo *class_info = info->classes[i];
 203           GdkAxisUse use;
 204           gdouble value;
 205
 206           if (class_info->type != XIValuatorClass)
 207             continue;
 208
 209           value = ((XIValuatorClassInfo *) class_info)->value;
 210           use = gdk_device_get_axis_use (device, j);
 211
 212           switch (use)
 213             {
 214             case GDK_AXIS_X:
 215             case GDK_AXIS_Y:
 216             case GDK_AXIS_IGNORE:
 217               if (gdk_device_get_mode (device) == GDK_MODE_WINDOW)
 218                 _gdk_device_translate_window_coord (device, window, j, value, &axes[j]);
 219               else
 220                 {
 221                   gint root_x, root_y;
 222
 223                   /* FIXME: Maybe root coords chaching should happen here */
 224                   gdk_window_get_origin (window, &root_x, &root_y);
 225                   _gdk_device_translate_screen_coord (device, window,
 226                                                       root_x, root_y,
 227                                                       j, value,
 228                                                       &axes[j]);
 229                 }
 230               break;
 231             default:
 232               _gdk_device_translate_axis (device, j, value, &axes[j]);
 233               break;
 234             }
 235
 236           j++;
 237         }
 238
 239       if (info)
 240         XIFreeDeviceInfo (info);
 241     }
 242
 243   if (mask)
 244     gdk_x11_device_xi2_query_state (device, window,
 245                                     NULL, NULL,
 246                                     NULL, NULL,
 247                                     NULL, NULL,
 248                                     mask);
 249 }
 250
 251 static void
 252 gdk_x11_device_xi2_set_window_cursor (GdkDevice *device,
 253                                       GdkWindow *window,
 254                                       GdkCursor *cursor)
 255 {
 256   GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
 257
 258   /* Non-master devices don't have a cursor */
 259   if (gdk_device_get_device_type (device) != GDK_DEVICE_TYPE_MASTER)
 260     return;
 261
 262   if (cursor)
 263     XIDefineCursor (GDK_WINDOW_XDISPLAY (window),
 264                     device_xi2->device_id,
 265                     GDK_WINDOW_XID (window),
 266                     gdk_x11_cursor_get_xcursor (cursor));
 267   else
 268     XIUndefineCursor (GDK_WINDOW_XDISPLAY (window),
 269                       device_xi2->device_id,
 270                       GDK_WINDOW_XID (window));
 271 }
 272
 273 static void
 274 gdk_x11_device_xi2_warp (GdkDevice *device,
 275                          GdkScreen *screen,
 276                          gint       x,
 277                          gint       y)
 278 {
 279   GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
 280   Window dest;
 281
 282   dest = GDK_WINDOW_XID (gdk_screen_get_root_window (screen));
 283
 284   XIWarpPointer (GDK_SCREEN_XDISPLAY (screen),
 285                  device_xi2->device_id,
 286                  None, dest,
 287                  0, 0, 0, 0, x, y);
 288 }
 289
 290 static gboolean
 291 gdk_x11_device_xi2_query_state (GdkDevice        *device,
 292                                 GdkWindow        *window,
 293                                 GdkWindow       **root_window,
 294                                 GdkWindow       **child_window,
 295                                 gint             *root_x,
 296                                 gint             *root_y,
 297                                 gint             *win_x,
 298                                 gint             *win_y,
 299                                 GdkModifierType  *mask)
 300 {
 301   GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
 302   GdkDisplay *display;
 303   GdkScreen *default_screen;
 304   Window xroot_window, xchild_window;
 305   gdouble xroot_x, xroot_y, xwin_x, xwin_y;
 306   XIButtonState button_state;
 307   XIModifierState mod_state;
 308   XIGroupState group_state;
 309
 310   if (!window || GDK_WINDOW_DESTROYED (window))
 311     return FALSE;
 312
 313   display = gdk_window_get_display (window);
 314   default_screen = gdk_display_get_default_screen (display);
 315
 316   if (G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
 317     {
 318       if (!XIQueryPointer (GDK_WINDOW_XDISPLAY (window),
 319                            device_xi2->device_id,
 320                            GDK_WINDOW_XID (window),
 321                            &xroot_window,
 322                            &xchild_window,
 323                            &xroot_x, &xroot_y,
 324                            &xwin_x, &xwin_y,
 325                            &button_state,
 326                            &mod_state,
 327                            &group_state))
 328         return FALSE;
 329     }
 330   else
 331     {
 332       XSetWindowAttributes attributes;
 333       Display *xdisplay;
 334       Window xwindow, w;
 335
 336       /* FIXME: untrusted clients not multidevice-safe */
 337       xdisplay = GDK_SCREEN_XDISPLAY (default_screen);
 338       xwindow = GDK_SCREEN_XROOTWIN (default_screen);
 339
 340       w = XCreateWindow (xdisplay, xwindow, 0, 0, 1, 1, 0,
 341                          CopyFromParent, InputOnly, CopyFromParent,
 342                          0, &attributes);
 343       XIQueryPointer (xdisplay, device_xi2->device_id,
 344                       w,
 345                       &xroot_window,
 346                       &xchild_window,
 347                       &xroot_x, &xroot_y,
 348                       &xwin_x, &xwin_y,
 349                       &button_state,
 350                       &mod_state,
 351                       &group_state);
 352       XDestroyWindow (xdisplay, w);
 353     }
 354
 355   if (root_window)
 356     *root_window = gdk_x11_window_lookup_for_display (display, xroot_window);
 357
 358   if (child_window)
 359     *child_window = gdk_x11_window_lookup_for_display (display, xchild_window);
 360
 361   if (root_x)
 362     *root_x = (gint) xroot_x;
 363
 364   if (root_y)
 365     *root_y = (gint) xroot_y;
 366
 367   if (win_x)
 368     *win_x = (gint) xwin_x;
 369
 370   if (win_y)
 371     *win_y = (gint) xwin_y;
 372
 373   if (mask)
 374     *mask = _gdk_x11_device_xi2_translate_state (&mod_state, &button_state, &group_state);
 375
 376   free (button_state.mask);
 377
 378   return TRUE;
 379 }
 380
 381 static GdkGrabStatus
 382 gdk_x11_device_xi2_grab (GdkDevice    *device,
 383                          GdkWindow    *window,
 384                          gboolean      owner_events,
 385                          GdkEventMask  event_mask,
 386                          GdkWindow    *confine_to,
 387                          GdkCursor    *cursor,
 388                          guint32       time_)
 389 {
 390   GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
 391   GdkDisplay *display;
 392   XIEventMask mask;
 393   Window xwindow;
 394   Cursor xcursor;
 395   gint status;
 396
 397   display = gdk_device_get_display (device);
 398
 399   /* FIXME: confine_to is actually unused */
 400
 401   xwindow = GDK_WINDOW_XID (window);
 402
 403   if (!cursor)
 404     xcursor = None;
 405   else
 406     {
 407       _gdk_x11_cursor_update_theme (cursor);
 408       xcursor = gdk_x11_cursor_get_xcursor (cursor);
 409     }
 410
 411   mask.deviceid = device_xi2->device_id;
 412   mask.mask = _gdk_x11_device_xi2_translate_event_mask (event_mask, &mask.mask_len);
 413
 414 #ifdef G_ENABLE_DEBUG
 415   if (_gdk_debug_flags & GDK_DEBUG_NOGRABS)
 416     status = GrabSuccess;
 417   else
 418 #endif
 419   status = XIGrabDevice (GDK_DISPLAY_XDISPLAY (display),
 420                          device_xi2->device_id,
 421                          xwindow,
 422                          time_,
 423                          xcursor,
 424                          GrabModeAsync, GrabModeAsync,
 425                          owner_events,
 426                          &mask);
 427
 428   g_free (mask.mask);
 429
 430   _gdk_x11_display_update_grab_info (display, device, status);
 431
 432   return _gdk_x11_convert_grab_status (status);
 433 }
 434
 435 static void
 436 gdk_x11_device_xi2_ungrab (GdkDevice *device,
 437                            guint32    time_)
 438 {
 439   GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
 440   GdkDisplay *display;
 441   gulong serial;
 442
 443   display = gdk_device_get_display (device);
 444   serial = NextRequest (GDK_DISPLAY_XDISPLAY (display));
 445
 446   XIUngrabDevice (GDK_DISPLAY_XDISPLAY (display), device_xi2->device_id, time_);
 447
 448   _gdk_x11_display_update_grab_info_ungrab (display, device, time_, serial);
 449 }
 450
 451 static GdkWindow *
 452 gdk_x11_device_xi2_window_at_position (GdkDevice       *device,
 453                                        gint            *win_x,
 454                                        gint            *win_y,
 455                                        GdkModifierType *mask,
 456                                        gboolean         get_toplevel)
 457 {
 458   GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
 459   GdkDisplay *display;
 460   GdkScreen *screen;
 461   Display *xdisplay;
 462   GdkWindow *window;
 463   Window xwindow, root, child, last = None;
 464   gdouble xroot_x, xroot_y, xwin_x, xwin_y;
 465   XIButtonState button_state = { 0 };
 466   XIModifierState mod_state;
 467   XIGroupState group_state;
 468
 469   display = gdk_device_get_display (device);
 470   screen = gdk_display_get_default_screen (display);
 471
 472   /* This function really only works if the mouse pointer is held still
 473    * during its operation. If it moves from one leaf window to another
 474    * than we'll end up with inaccurate values for win_x, win_y
 475    * and the result.
 476    */
 477   gdk_x11_display_grab (display);
 478
 479   xdisplay = GDK_SCREEN_XDISPLAY (screen);
 480   xwindow = GDK_SCREEN_XROOTWIN (screen);
 481
 482   if (G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
 483     {
 484       XIQueryPointer (xdisplay,
 485                       device_xi2->device_id,
 486                       xwindow,
 487                       &root, &child,
 488                       &xroot_x, &xroot_y,
 489                       &xwin_x, &xwin_y,
 490                       &button_state,
 491                       &mod_state,
 492                       &group_state);
 493
 494       if (root == xwindow)
 495         xwindow = child;
 496       else
 497         xwindow = root;
 498     }
 499   else
 500     {
 501       gint i, screens, width, height;
 502       GList *toplevels, *list;
 503       Window pointer_window, root, child;
 504
 505       /* FIXME: untrusted clients case not multidevice-safe */
 506       pointer_window = None;
 507       screens = gdk_display_get_n_screens (display);
 508
 509       for (i = 0; i < screens; ++i)
 510         {
 511           screen = gdk_display_get_screen (display, i);
 512           toplevels = gdk_screen_get_toplevel_windows (screen);
 513           for (list = toplevels; list != NULL; list = g_list_next (list))
 514             {
 515               window = GDK_WINDOW (list->data);
 516               xwindow = GDK_WINDOW_XID (window);
 517
 518               /* Free previous button mask, if any */
 519               g_free (button_state.mask);
 520
 521               gdk_x11_display_error_trap_push (display);
 522               XIQueryPointer (xdisplay,
 523                               device_xi2->device_id,
 524                               xwindow,
 525                               &root, &child,
 526                               &xroot_x, &xroot_y,
 527                               &xwin_x, &xwin_y,
 528                               &button_state,
 529                               &mod_state,
 530                               &group_state);
 531               if (gdk_x11_display_error_trap_pop (display))
 532                 continue;
 533               if (child != None)
 534                 {
 535                   pointer_window = child;
 536                   break;
 537                 }
 538               gdk_window_get_geometry (window, NULL, NULL, &width, &height);
 539               if (xwin_x >= 0 && xwin_y >= 0 && xwin_x < width && xwin_y < height)
 540                 {
 541                   /* A childless toplevel, or below another window? */
 542                   XSetWindowAttributes attributes;
 543                   Window w;
 544
 545                   free (button_state.mask);
 546
 547                   w = XCreateWindow (xdisplay, xwindow, (int)xwin_x, (int)xwin_y, 1, 1, 0,
 548                                      CopyFromParent, InputOnly, CopyFromParent,
 549                                      0, &attributes);
 550                   XMapWindow (xdisplay, w);
 551                   XIQueryPointer (xdisplay,
 552                                   device_xi2->device_id,
 553                                   xwindow,
 554                                   &root, &child,
 555                                   &xroot_x, &xroot_y,
 556                                   &xwin_x, &xwin_y,
 557                                   &button_state,
 558                                   &mod_state,
 559                                   &group_state);
 560                   XDestroyWindow (xdisplay, w);
 561                   if (child == w)
 562                     {
 563                       pointer_window = xwindow;
 564                       break;
 565                     }
 566                 }
 567             }
 568
 569           g_list_free (toplevels);
 570           if (pointer_window != None)
 571             break;
 572         }
 573
 574       xwindow = pointer_window;
 575     }
 576
 577   while (xwindow)
 578     {
 579       last = xwindow;
 580       free (button_state.mask);
 581
 582       gdk_x11_display_error_trap_push (display);
 583       XIQueryPointer (xdisplay,
 584                       device_xi2->device_id,
 585                       xwindow,
 586                       &root, &xwindow,
 587                       &xroot_x, &xroot_y,
 588                       &xwin_x, &xwin_y,
 589                       &button_state,
 590                       &mod_state,
 591                       &group_state);
 592       if (gdk_x11_display_error_trap_pop (display))
 593         break;
 594
 595       if (get_toplevel && last != root &&
 596           (window = gdk_x11_window_lookup_for_display (display, last)) != NULL &&
 597           GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN)
 598         {
 599           xwindow = last;
 600           break;
 601         }
 602     }
 603
 604   gdk_x11_display_ungrab (display);
 605
 606   window = gdk_x11_window_lookup_for_display (display, last);
 607
 608   if (win_x)
 609     *win_x = (window) ? (gint) xwin_x : -1;
 610
 611   if (win_y)
 612     *win_y = (window) ? (gint) xwin_y : -1;
 613
 614   if (mask)
 615     *mask = _gdk_x11_device_xi2_translate_state (&mod_state, &button_state, &group_state);
 616
 617   free (button_state.mask);
 618
 619   return window;
 620 }
 621
 622 static void
 623 gdk_x11_device_xi2_select_window_events (GdkDevice    *device,
 624                                          GdkWindow    *window,
 625                                          GdkEventMask  event_mask)
 626 {
 627   GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
 628   XIEventMask evmask;
 629
 630   evmask.deviceid = device_xi2->device_id;
 631   evmask.mask = _gdk_x11_device_xi2_translate_event_mask (event_mask, &evmask.mask_len);
 632
 633   XISelectEvents (GDK_WINDOW_XDISPLAY (window),
 634                   GDK_WINDOW_XID (window),
 635                   &evmask, 1);
 636
 637   g_free (evmask.mask);
 638 }
 639
 640 guchar *
 641 _gdk_x11_device_xi2_translate_event_mask (GdkEventMask  event_mask,
 642                                           gint         *len)
 643 {
 644   guchar *mask;
 645
 646   *len = XIMaskLen (XI_LASTEVENT);
 647   mask = g_new0 (guchar, *len);
 648
 649   if (event_mask & GDK_POINTER_MOTION_MASK ||
 650       event_mask & GDK_POINTER_MOTION_HINT_MASK)
 651     XISetMask (mask, XI_Motion);
 652
 653   if (event_mask & GDK_BUTTON_MOTION_MASK ||
 654       event_mask & GDK_BUTTON1_MOTION_MASK ||
 655       event_mask & GDK_BUTTON2_MOTION_MASK ||
 656       event_mask & GDK_BUTTON3_MOTION_MASK)
 657     {
 658       XISetMask (mask, XI_ButtonPress);
 659       XISetMask (mask, XI_ButtonRelease);
 660       XISetMask (mask, XI_Motion);
 661     }
 662
 663   if (event_mask & GDK_SCROLL_MASK)
 664     {
 665       XISetMask (mask, XI_ButtonPress);
 666       XISetMask (mask, XI_ButtonRelease);
 667     }
 668
 669   if (event_mask & GDK_BUTTON_PRESS_MASK)
 670     XISetMask (mask, XI_ButtonPress);
 671
 672   if (event_mask & GDK_BUTTON_RELEASE_MASK)
 673     XISetMask (mask, XI_ButtonRelease);
 674
 675   if (event_mask & GDK_KEY_PRESS_MASK)
 676     XISetMask (mask, XI_KeyPress);
 677
 678   if (event_mask & GDK_KEY_RELEASE_MASK)
 679     XISetMask (mask, XI_KeyRelease);
 680
 681   if (event_mask & GDK_ENTER_NOTIFY_MASK)
 682     XISetMask (mask, XI_Enter);
 683
 684   if (event_mask & GDK_LEAVE_NOTIFY_MASK)
 685     XISetMask (mask, XI_Leave);
 686
 687   if (event_mask & GDK_FOCUS_CHANGE_MASK)
 688     {
 689       XISetMask (mask, XI_FocusIn);
 690       XISetMask (mask, XI_FocusOut);
 691     }
 692
 693   return mask;
 694 }
 695
 696 guint
 697 _gdk_x11_device_xi2_translate_state (XIModifierState *mods_state,
 698                                      XIButtonState   *buttons_state,
 699                                      XIGroupState    *group_state)
 700 {
 701   guint state = 0;
 702
 703   if (mods_state)
 704     state = (guint) mods_state->base | mods_state->latched | mods_state->locked;
 705
 706   if (buttons_state)
 707     {
 708       gint len, i;
 709
 710       /* We're only interested in the first 5 buttons */
 711       len = MIN (5, buttons_state->mask_len * 8);
 712
 713       for (i = 0; i < len; i++)
 714         {
 715           if (!XIMaskIsSet (buttons_state->mask, i))
 716             continue;
 717
 718           switch (i)
 719             {
 720             case 1:
 721               state |= GDK_BUTTON1_MASK;
 722               break;
 723             case 2:
 724               state |= GDK_BUTTON2_MASK;
 725               break;
 726             case 3:
 727               state |= GDK_BUTTON3_MASK;
 728               break;
 729             case 4:
 730               state |= GDK_BUTTON4_MASK;
 731               break;
 732             case 5:
 733               state |= GDK_BUTTON5_MASK;
 734               break;
 735             default:
 736               break;
 737             }
 738         }
 739     }
 740
 741   if (group_state)
 742     {
 743       gint group;
 744
 745       group = group_state->base | group_state->latched | group_state->locked;
 746
 747       /* FIXME: do we need the XKB complications for this ? */
 748       group = CLAMP(group, 0, 3);
 749
 750       state |= group << 13;
 751     }
 752
 753   return state;
 754 }
 755
 756 gint
 757 _gdk_x11_device_xi2_get_id (GdkX11DeviceXI2 *device)
 758 {
 759   g_return_val_if_fail (GDK_IS_X11_DEVICE_XI2 (device), 0);
 760
 761   return device->device_id;
 762 }
 763
 764 #else /* XINPUT_2 */
 765
 766 static void
 767 gdk_x11_device_xi2_class_init (GdkX11DeviceXI2Class *klass)
 768 {
 769 }
 770
 771 static void
 772 gdk_x11_device_xi2_init (GdkX11DeviceXI2 *device)
 773 {
 774 }
 775
 776 #endif /* XINPUT_2 */