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

   1 /* GDK - The GIMP Drawing Kit
   2  * gdkdisplay-x11.c
   3  *
   4  * Copyright 2001 Sun Microsystems Inc.
   5  * Copyright (C) 2004 Nokia Corporation
   6  *
   7  * Erwann Chenede <erwann.chenede@sun.com>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Library General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Library General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Library General Public
  20  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 #include "config.h"
  24
  25 #include "gdkasync.h"
  26 #include "gdkdisplay.h"
  27 #include "gdkeventsource.h"
  28 #include "gdkeventtranslator.h"
  29 #include "gdkinternals.h"
  30 #include "gdkscreen.h"
  31 #include "gdkinternals.h"
  32 #include "gdkdeviceprivate.h"
  33 #include "gdkkeysprivate.h"
  34 #include "gdkdevicemanager.h"
  35 #include "xsettings-client.h"
  36 #include "gdkdisplay-x11.h"
  37 #include "gdkprivate-x11.h"
  38 #include "gdkscreen-x11.h"
  39
  40 #include <glib.h>
  41 #include <glib/gprintf.h>
  42 #include <stdlib.h>
  43 #include <string.h>
  44 #include <errno.h>
  45 #include <unistd.h>
  46
  47 #include <X11/Xatom.h>
  48
  49 #ifdef HAVE_XKB
  50 #include <X11/XKBlib.h>
  51 #endif
  52
  53 #ifdef HAVE_XFIXES
  54 #include <X11/extensions/Xfixes.h>
  55 #endif
  56
  57 #include <X11/extensions/shape.h>
  58
  59 #ifdef HAVE_XCOMPOSITE
  60 #include <X11/extensions/Xcomposite.h>
  61 #endif
  62
  63 #ifdef HAVE_XDAMAGE
  64 #include <X11/extensions/Xdamage.h>
  65 #endif
  66
  67 #ifdef HAVE_RANDR
  68 #include <X11/extensions/Xrandr.h>
  69 #endif
  70
  71 typedef struct _GdkErrorTrap  GdkErrorTrap;
  72
  73 struct _GdkErrorTrap
  74 {
  75   /* Next sequence when trap was pushed, i.e. first sequence to
  76    * ignore
  77    */
  78   gulong start_sequence;
  79
  80   /* Next sequence when trap was popped, i.e. first sequence
  81    * to not ignore. 0 if trap is still active.
  82    */
  83   gulong end_sequence;
  84
  85   /* Most recent error code within the sequence */
  86   int error_code;
  87 };
  88
  89 static void   gdk_x11_display_dispose            (GObject            *object);
  90 static void   gdk_x11_display_finalize           (GObject            *object);
  91
  92 static void     gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface);
  93
  94 static gboolean gdk_x11_display_translate_event (GdkEventTranslator *translator,
  95                                                  GdkDisplay         *display,
  96                                                  GdkEvent           *event,
  97                                                  XEvent             *xevent);
  98
  99 static void gdk_internal_connection_watch (Display  *display,
 100                                            XPointer  arg,
 101                                            gint      fd,
 102                                            gboolean  opening,
 103                                            XPointer *watch_data);
 104
 105 typedef struct _GdkEventTypeX11 GdkEventTypeX11;
 106
 107 struct _GdkEventTypeX11
 108 {
 109   gint base;
 110   gint n_events;
 111 };
 112
 113 /* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
 114  * but including them here has the side-effect of getting them
 115  * into the internal Xlib cache
 116  */
 117 static const char *const precache_atoms[] = {
 118   "UTF8_STRING",
 119   "WM_CLIENT_LEADER",
 120   "WM_DELETE_WINDOW",
 121   "WM_ICON_NAME",
 122   "WM_LOCALE_NAME",
 123   "WM_NAME",
 124   "WM_PROTOCOLS",
 125   "WM_TAKE_FOCUS",
 126   "WM_WINDOW_ROLE",
 127   "_NET_ACTIVE_WINDOW",
 128   "_NET_CURRENT_DESKTOP",
 129   "_NET_FRAME_EXTENTS",
 130   "_NET_STARTUP_ID",
 131   "_NET_WM_CM_S0",
 132   "_NET_WM_DESKTOP",
 133   "_NET_WM_ICON",
 134   "_NET_WM_ICON_NAME",
 135   "_NET_WM_NAME",
 136   "_NET_WM_PID",
 137   "_NET_WM_PING",
 138   "_NET_WM_STATE",
 139   "_NET_WM_STATE_ABOVE",
 140   "_NET_WM_STATE_BELOW",
 141   "_NET_WM_STATE_FULLSCREEN",
 142   "_NET_WM_STATE_MODAL",
 143   "_NET_WM_STATE_MAXIMIZED_VERT",
 144   "_NET_WM_STATE_MAXIMIZED_HORZ",
 145   "_NET_WM_STATE_SKIP_TASKBAR",
 146   "_NET_WM_STATE_SKIP_PAGER",
 147   "_NET_WM_STATE_STICKY",
 148   "_NET_WM_SYNC_REQUEST",
 149   "_NET_WM_SYNC_REQUEST_COUNTER",
 150   "_NET_WM_WINDOW_TYPE",
 151   "_NET_WM_WINDOW_TYPE_NORMAL",
 152   "_NET_WM_USER_TIME",
 153   "_NET_VIRTUAL_ROOTS",
 154   "GDK_SELECTION",
 155   "_NET_WM_STATE_FOCUSED"
 156 };
 157
 158 static char *gdk_sm_client_id;
 159
 160 G_DEFINE_TYPE_WITH_CODE (GdkX11Display, gdk_x11_display, GDK_TYPE_DISPLAY,
 161                          G_IMPLEMENT_INTERFACE (GDK_TYPE_EVENT_TRANSLATOR,
 162                                                 gdk_x11_display_event_translator_init))
 163
 164
 165 static void
 166 gdk_x11_display_init (GdkX11Display *display)
 167 {
 168   _gdk_x11_display_manager_add_display (gdk_display_manager_get (),
 169                                         GDK_DISPLAY (display));
 170 }
 171
 172 static void
 173 gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface)
 174 {
 175   iface->translate_event = gdk_x11_display_translate_event;
 176 }
 177
 178 static void
 179 do_net_wm_state_changes (GdkWindow *window)
 180 {
 181   GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
 182   GdkWindowState old_state;
 183
 184   if (GDK_WINDOW_DESTROYED (window) ||
 185       gdk_window_get_window_type (window) != GDK_WINDOW_TOPLEVEL)
 186     return;
 187
 188   old_state = gdk_window_get_state (window);
 189
 190   /* For found_sticky to remain TRUE, we have to also be on desktop
 191    * 0xFFFFFFFF
 192    */
 193   if (old_state & GDK_WINDOW_STATE_STICKY)
 194     {
 195       if (!(toplevel->have_sticky && toplevel->on_all_desktops))
 196         gdk_synthesize_window_state (window,
 197                                      GDK_WINDOW_STATE_STICKY,
 198                                      0);
 199     }
 200   else
 201     {
 202       if (toplevel->have_sticky && toplevel->on_all_desktops)
 203         gdk_synthesize_window_state (window,
 204                                      0,
 205                                      GDK_WINDOW_STATE_STICKY);
 206     }
 207
 208   if (old_state & GDK_WINDOW_STATE_FULLSCREEN)
 209     {
 210       if (!toplevel->have_fullscreen)
 211         gdk_synthesize_window_state (window,
 212                                      GDK_WINDOW_STATE_FULLSCREEN,
 213                                      0);
 214     }
 215   else
 216     {
 217       if (toplevel->have_fullscreen)
 218         gdk_synthesize_window_state (window,
 219                                      0,
 220                                      GDK_WINDOW_STATE_FULLSCREEN);
 221     }
 222
 223   /* Our "maximized" means both vertical and horizontal; if only one,
 224    * we don't expose that via GDK
 225    */
 226   if (old_state & GDK_WINDOW_STATE_MAXIMIZED)
 227     {
 228       if (!(toplevel->have_maxvert && toplevel->have_maxhorz))
 229         gdk_synthesize_window_state (window,
 230                                      GDK_WINDOW_STATE_MAXIMIZED,
 231                                      0);
 232     }
 233   else
 234     {
 235       if (toplevel->have_maxvert && toplevel->have_maxhorz)
 236         gdk_synthesize_window_state (window,
 237                                      0,
 238                                      GDK_WINDOW_STATE_MAXIMIZED);
 239     }
 240
 241   if (old_state & GDK_WINDOW_STATE_FOCUSED)
 242     {
 243       if (!toplevel->have_focused)
 244         gdk_synthesize_window_state (window,
 245                                      GDK_WINDOW_STATE_FOCUSED,
 246                                      0);
 247     }
 248   else
 249     {
 250       if (toplevel->have_focused)
 251         gdk_synthesize_window_state (window,
 252                                      0,
 253                                      GDK_WINDOW_STATE_FOCUSED);
 254     }
 255
 256   if (old_state & GDK_WINDOW_STATE_ICONIFIED)
 257     {
 258       if (!toplevel->have_hidden)
 259         gdk_synthesize_window_state (window,
 260                                      GDK_WINDOW_STATE_ICONIFIED,
 261                                      0);
 262     }
 263   else
 264     {
 265       if (toplevel->have_hidden)
 266         gdk_synthesize_window_state (window,
 267                                      0,
 268                                      GDK_WINDOW_STATE_ICONIFIED);
 269     }
 270 }
 271
 272 static void
 273 gdk_check_wm_desktop_changed (GdkWindow *window)
 274 {
 275   GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
 276   GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
 277
 278   Atom type;
 279   gint format;
 280   gulong nitems;
 281   gulong bytes_after;
 282   guchar *data;
 283   gulong *desktop;
 284
 285   type = None;
 286   gdk_x11_display_error_trap_push (display);
 287   XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
 288                       GDK_WINDOW_XID (window),
 289                       gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"),
 290                       0, G_MAXLONG, False, XA_CARDINAL, &type,
 291                       &format, &nitems,
 292                       &bytes_after, &data);
 293   gdk_x11_display_error_trap_pop_ignored (display);
 294
 295   if (type != None)
 296     {
 297       desktop = (gulong *)data;
 298       toplevel->on_all_desktops = ((*desktop & 0xFFFFFFFF) == 0xFFFFFFFF);
 299       XFree (desktop);
 300     }
 301   else
 302     toplevel->on_all_desktops = FALSE;
 303
 304   do_net_wm_state_changes (window);
 305 }
 306
 307 static void
 308 gdk_check_wm_state_changed (GdkWindow *window)
 309 {
 310   GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
 311   GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
 312   GdkScreen *screen = GDK_WINDOW_SCREEN (window);
 313
 314   Atom type;
 315   gint format;
 316   gulong nitems;
 317   gulong bytes_after;
 318   guchar *data;
 319   Atom *atoms = NULL;
 320   gulong i;
 321
 322   gboolean had_sticky = toplevel->have_sticky;
 323
 324   toplevel->have_sticky = FALSE;
 325   toplevel->have_maxvert = FALSE;
 326   toplevel->have_maxhorz = FALSE;
 327   toplevel->have_fullscreen = FALSE;
 328   toplevel->have_focused = FALSE;
 329   toplevel->have_hidden = FALSE;
 330
 331   type = None;
 332   gdk_x11_display_error_trap_push (display);
 333   XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window),
 334                       gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"),
 335                       0, G_MAXLONG, False, XA_ATOM, &type, &format, &nitems,
 336                       &bytes_after, &data);
 337   gdk_x11_display_error_trap_pop_ignored (display);
 338
 339   if (type != None)
 340     {
 341       Atom sticky_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_STICKY");
 342       Atom maxvert_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_VERT");
 343       Atom maxhorz_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_HORZ");
 344       Atom fullscreen_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FULLSCREEN");
 345       Atom focused_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FOCUSED");
 346       Atom hidden_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_HIDDEN");
 347
 348       atoms = (Atom *)data;
 349
 350       i = 0;
 351       while (i < nitems)
 352         {
 353           if (atoms[i] == sticky_atom)
 354             toplevel->have_sticky = TRUE;
 355           else if (atoms[i] == maxvert_atom)
 356             toplevel->have_maxvert = TRUE;
 357           else if (atoms[i] == maxhorz_atom)
 358             toplevel->have_maxhorz = TRUE;
 359           else if (atoms[i] == fullscreen_atom)
 360             toplevel->have_fullscreen = TRUE;
 361           else if (atoms[i] == focused_atom)
 362             toplevel->have_focused = TRUE;
 363           else if (atoms[i] == hidden_atom)
 364             toplevel->have_hidden = TRUE;
 365
 366           ++i;
 367         }
 368
 369       XFree (atoms);
 370     }
 371
 372   if (!gdk_x11_screen_supports_net_wm_hint (screen,
 373                                             gdk_atom_intern_static_string ("_NET_WM_STATE_FOCUSED")))
 374     toplevel->have_focused = TRUE;
 375
 376   /* When have_sticky is turned on, we have to check the DESKTOP property
 377    * as well.
 378    */
 379   if (toplevel->have_sticky && !had_sticky)
 380     gdk_check_wm_desktop_changed (window);
 381   else
 382     do_net_wm_state_changes (window);
 383 }
 384
 385 static Window
 386 get_event_xwindow (XEvent             *xevent)
 387 {
 388   Window xwindow;
 389
 390   switch (xevent->type)
 391     {
 392     case DestroyNotify:
 393       xwindow = xevent->xdestroywindow.window;
 394       break;
 395     case UnmapNotify:
 396       xwindow = xevent->xunmap.window;
 397       break;
 398     case MapNotify:
 399       xwindow = xevent->xmap.window;
 400       break;
 401     case ConfigureNotify:
 402       xwindow = xevent->xconfigure.window;
 403       break;
 404     case ReparentNotify:
 405       xwindow = xevent->xreparent.window;
 406       break;
 407     case GravityNotify:
 408       xwindow = xevent->xgravity.window;
 409       break;
 410     case CirculateNotify:
 411       xwindow = xevent->xcirculate.window;
 412       break;
 413     default:
 414       xwindow = xevent->xany.window;
 415     }
 416
 417   return xwindow;
 418 }
 419
 420 static gboolean
 421 gdk_x11_display_translate_event (GdkEventTranslator *translator,
 422                                  GdkDisplay         *display,
 423                                  GdkEvent           *event,
 424                                  XEvent             *xevent)
 425 {
 426   Window xwindow;
 427   GdkWindow *window;
 428   gboolean is_substructure;
 429   GdkWindowImplX11 *window_impl = NULL;
 430   GdkScreen *screen = NULL;
 431   GdkX11Screen *x11_screen = NULL;
 432   GdkToplevelX11 *toplevel = NULL;
 433   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
 434   gboolean return_val;
 435
 436   /* Find the GdkWindow that this event relates to. If that's
 437    * not the same as the window that the event was sent to,
 438    * we are getting an event from SubstructureNotifyMask.
 439    * We ignore such events for internal operation, but we
 440    * need to report them to the application because of
 441    * GDK_SUBSTRUCTURE_MASK (which should be removed at next
 442    * opportunity.) The most likely reason for getting these
 443    * events is when we are used in the Metacity or Mutter
 444    * window managers.
 445    */
 446   xwindow = get_event_xwindow (xevent);
 447   is_substructure = xwindow != xevent->xany.window;
 448
 449   window = gdk_x11_window_lookup_for_display (display, xwindow);
 450   if (window)
 451     {
 452       /* We may receive events such as NoExpose/GraphicsExpose
 453        * and ShmCompletion for pixmaps
 454        */
 455       if (!GDK_IS_WINDOW (window))
 456         return FALSE;
 457
 458       screen = GDK_WINDOW_SCREEN (window);
 459       x11_screen = GDK_X11_SCREEN (screen);
 460       toplevel = _gdk_x11_window_get_toplevel (window);
 461       window_impl = GDK_WINDOW_IMPL_X11 (window->impl);
 462
 463       g_object_ref (window);
 464     }
 465
 466   event->any.window = window;
 467   event->any.send_event = xevent->xany.send_event ? TRUE : FALSE;
 468
 469   if (window && GDK_WINDOW_DESTROYED (window))
 470     {
 471       if (xevent->type != DestroyNotify)
 472         {
 473           return_val = FALSE;
 474           goto done;
 475         }
 476     }
 477
 478   if (xevent->type == DestroyNotify && !is_substructure)
 479     {
 480       int i, n;
 481
 482       n = gdk_display_get_n_screens (display);
 483       for (i = 0; i < n; i++)
 484         {
 485           screen = gdk_display_get_screen (display, i);
 486           x11_screen = GDK_X11_SCREEN (screen);
 487
 488           if (x11_screen->wmspec_check_window == xevent->xdestroywindow.window)
 489             {
 490               x11_screen->wmspec_check_window = None;
 491               x11_screen->last_wmspec_check_time = 0;
 492               g_free (x11_screen->window_manager_name);
 493               x11_screen->window_manager_name = g_strdup ("unknown");
 494
 495               /* careful, reentrancy */
 496               _gdk_x11_screen_window_manager_changed (screen);
 497
 498               return_val = FALSE;
 499               goto done;
 500             }
 501         }
 502     }
 503
 504   /* We do a "manual" conversion of the XEvent to a
 505    *  GdkEvent. The structures are mostly the same so
 506    *  the conversion is fairly straightforward. We also
 507    *  optionally print debugging info regarding events
 508    *  received.
 509    */
 510
 511   return_val = TRUE;
 512
 513   switch (xevent->type)
 514     {
 515     case KeymapNotify:
 516       GDK_NOTE (EVENTS,
 517                 g_message ("keymap notify"));
 518
 519       /* Not currently handled */
 520       return_val = FALSE;
 521       break;
 522
 523     case Expose:
 524       GDK_NOTE (EVENTS,
 525                 g_message ("expose:\t\twindow: %ld  %d  x,y: %d %d  w,h: %d %d%s",
 526                            xevent->xexpose.window, xevent->xexpose.count,
 527                            xevent->xexpose.x, xevent->xexpose.y,
 528                            xevent->xexpose.width, xevent->xexpose.height,
 529                            event->any.send_event ? " (send)" : ""));
 530
 531       if (window == NULL)
 532         {
 533           return_val = FALSE;
 534           break;
 535         }
 536
 537       {
 538         GdkRectangle expose_rect;
 539
 540         expose_rect.x = xevent->xexpose.x;
 541         expose_rect.y = xevent->xexpose.y;
 542         expose_rect.width = xevent->xexpose.width;
 543         expose_rect.height = xevent->xexpose.height;
 544
 545         _gdk_x11_window_process_expose (window, xevent->xexpose.serial, &expose_rect);
 546         return_val = FALSE;
 547       }
 548
 549       break;
 550
 551     case GraphicsExpose:
 552       {
 553         GdkRectangle expose_rect;
 554
 555         GDK_NOTE (EVENTS,
 556                   g_message ("graphics expose:\tdrawable: %ld",
 557                              xevent->xgraphicsexpose.drawable));
 558
 559         if (window == NULL)
 560           {
 561             return_val = FALSE;
 562             break;
 563           }
 564
 565         expose_rect.x = xevent->xgraphicsexpose.x;
 566         expose_rect.y = xevent->xgraphicsexpose.y;
 567         expose_rect.width = xevent->xgraphicsexpose.width;
 568         expose_rect.height = xevent->xgraphicsexpose.height;
 569
 570         _gdk_x11_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect);
 571         return_val = FALSE;
 572       }
 573       break;
 574
 575     case VisibilityNotify:
 576 #ifdef G_ENABLE_DEBUG
 577       if (_gdk_debug_flags & GDK_DEBUG_EVENTS)
 578         switch (xevent->xvisibility.state)
 579           {
 580           case VisibilityFullyObscured:
 581             g_message ("visibility notify:\twindow: %ld  none",
 582                        xevent->xvisibility.window);
 583             break;
 584           case VisibilityPartiallyObscured:
 585             g_message ("visibility notify:\twindow: %ld  partial",
 586                        xevent->xvisibility.window);
 587             break;
 588           case VisibilityUnobscured:
 589             g_message ("visibility notify:\twindow: %ld  full",
 590                        xevent->xvisibility.window);
 591             break;
 592           }
 593 #endif /* G_ENABLE_DEBUG */
 594
 595       if (window == NULL)
 596         {
 597           return_val = FALSE;
 598           break;
 599         }
 600
 601       event->visibility.type = GDK_VISIBILITY_NOTIFY;
 602       event->visibility.window = window;
 603
 604       switch (xevent->xvisibility.state)
 605         {
 606         case VisibilityFullyObscured:
 607           event->visibility.state = GDK_VISIBILITY_FULLY_OBSCURED;
 608           break;
 609
 610         case VisibilityPartiallyObscured:
 611           event->visibility.state = GDK_VISIBILITY_PARTIAL;
 612           break;
 613
 614         case VisibilityUnobscured:
 615           event->visibility.state = GDK_VISIBILITY_UNOBSCURED;
 616           break;
 617         }
 618
 619       break;
 620
 621     case CreateNotify:
 622       GDK_NOTE (EVENTS,
 623                 g_message ("create notify:\twindow: %ld  x,y: %d %d     w,h: %d %d  b-w: %d  parent: %ld         ovr: %d",
 624                            xevent->xcreatewindow.window,
 625                            xevent->xcreatewindow.x,
 626                            xevent->xcreatewindow.y,
 627                            xevent->xcreatewindow.width,
 628                            xevent->xcreatewindow.height,
 629                            xevent->xcreatewindow.border_width,
 630                            xevent->xcreatewindow.parent,
 631                            xevent->xcreatewindow.override_redirect));
 632       /* not really handled */
 633       break;
 634
 635     case DestroyNotify:
 636       GDK_NOTE (EVENTS,
 637                 g_message ("destroy notify:\twindow: %ld",
 638                            xevent->xdestroywindow.window));
 639
 640       if (!is_substructure)
 641         {
 642           event->any.type = GDK_DESTROY;
 643           event->any.window = window;
 644
 645           return_val = window && !GDK_WINDOW_DESTROYED (window);
 646
 647           if (window && GDK_WINDOW_XID (window) != x11_screen->xroot_window)
 648             gdk_window_destroy_notify (window);
 649         }
 650       else
 651         return_val = FALSE;
 652
 653       break;
 654
 655     case UnmapNotify:
 656       GDK_NOTE (EVENTS,
 657                 g_message ("unmap notify:\t\twindow: %ld",
 658                            xevent->xmap.window));
 659
 660       event->any.type = GDK_UNMAP;
 661       event->any.window = window;
 662
 663       if (window && !is_substructure)
 664         {
 665           /* If the WM supports the _NET_WM_STATE_HIDDEN hint, we do not want to
 666            * interpret UnmapNotify events as implying iconic state.
 667            * http://bugzilla.gnome.org/show_bug.cgi?id=590726.
 668            */
 669           if (screen &&
 670               !gdk_x11_screen_supports_net_wm_hint (screen,
 671                                                     gdk_atom_intern_static_string ("_NET_WM_STATE_HIDDEN")))
 672             {
 673               /* If we are shown (not withdrawn) and get an unmap, it means we were
 674                * iconified in the X sense. If we are withdrawn, and get an unmap, it
 675                * means we hid the window ourselves, so we will have already flipped
 676                * the iconified bit off.
 677                */
 678               if (GDK_WINDOW_IS_MAPPED (window))
 679                 gdk_synthesize_window_state (window,
 680                                              0,
 681                                              GDK_WINDOW_STATE_ICONIFIED);
 682             }
 683
 684           _gdk_x11_window_grab_check_unmap (window, xevent->xany.serial);
 685         }
 686
 687       break;
 688
 689     case MapNotify:
 690       GDK_NOTE (EVENTS,
 691                 g_message ("map notify:\t\twindow: %ld",
 692                            xevent->xmap.window));
 693
 694       event->any.type = GDK_MAP;
 695       event->any.window = window;
 696
 697       if (window && !is_substructure)
 698         {
 699           /* Unset iconified if it was set */
 700           if (window->state & GDK_WINDOW_STATE_ICONIFIED)
 701             gdk_synthesize_window_state (window,
 702                                          GDK_WINDOW_STATE_ICONIFIED,
 703                                          0);
 704         }
 705
 706       break;
 707
 708     case ReparentNotify:
 709       GDK_NOTE (EVENTS,
 710                 g_message ("reparent notify:\twindow: %ld  x,y: %d %d  parent: %ld      ovr: %d",
 711                            xevent->xreparent.window,
 712                            xevent->xreparent.x,
 713                            xevent->xreparent.y,
 714                            xevent->xreparent.parent,
 715                            xevent->xreparent.override_redirect));
 716
 717       /* Not currently handled */
 718       return_val = FALSE;
 719       break;
 720
 721     case ConfigureNotify:
 722       GDK_NOTE (EVENTS,
 723                 g_message ("configure notify:\twindow: %ld  x,y: %d %d  w,h: %d %d  b-w: %d  above: %ld  ovr: %d%s",
 724                            xevent->xconfigure.window,
 725                            xevent->xconfigure.x,
 726                            xevent->xconfigure.y,
 727                            xevent->xconfigure.width,
 728                            xevent->xconfigure.height,
 729                            xevent->xconfigure.border_width,
 730                            xevent->xconfigure.above,
 731                            xevent->xconfigure.override_redirect,
 732                            !window
 733                            ? " (discarding)"
 734                            : window->window_type == GDK_WINDOW_CHILD
 735                            ? " (discarding child)"
 736                            : xevent->xconfigure.event != xevent->xconfigure.window
 737                            ? " (discarding substructure)"
 738                            : ""));
 739       if (window && GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
 740         {
 741           window->width = xevent->xconfigure.width;
 742           window->height = xevent->xconfigure.height;
 743
 744           _gdk_window_update_size (window);
 745           _gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl));
 746           _gdk_x11_screen_size_changed (screen, xevent);
 747         }
 748
 749 #ifdef HAVE_XSYNC
 750       if (!is_substructure && toplevel && display_x11->use_sync && !XSyncValueIsZero (toplevel->pending_counter_value))
 751         {
 752           toplevel->current_counter_value = toplevel->pending_counter_value;
 753           XSyncIntToValue (&toplevel->pending_counter_value, 0);
 754         }
 755 #endif
 756
 757     if (!window ||
 758           xevent->xconfigure.event != xevent->xconfigure.window ||
 759           GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD ||
 760           GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
 761         return_val = FALSE;
 762       else
 763         {
 764           event->configure.type = GDK_CONFIGURE;
 765           event->configure.window = window;
 766           event->configure.width = xevent->xconfigure.width;
 767           event->configure.height = xevent->xconfigure.height;
 768
 769           if (!xevent->xconfigure.send_event &&
 770               !xevent->xconfigure.override_redirect &&
 771               !GDK_WINDOW_DESTROYED (window))
 772             {
 773               gint tx = 0;
 774               gint ty = 0;
 775               Window child_window = 0;
 776
 777               gdk_x11_display_error_trap_push (display);
 778               if (XTranslateCoordinates (GDK_WINDOW_XDISPLAY (window),
 779                                          GDK_WINDOW_XID (window),
 780                                          x11_screen->xroot_window,
 781                                          0, 0,
 782                                          &tx, &ty,
 783                                          &child_window))
 784                 {
 785                   event->configure.x = tx;
 786                   event->configure.y = ty;
 787                 }
 788               gdk_x11_display_error_trap_pop_ignored (display);
 789             }
 790           else
 791             {
 792               event->configure.x = xevent->xconfigure.x;
 793               event->configure.y = xevent->xconfigure.y;
 794             }
 795           if (!is_substructure)
 796             {
 797               window->x = event->configure.x;
 798               window->y = event->configure.y;
 799               window->width = xevent->xconfigure.width;
 800               window->height = xevent->xconfigure.height;
 801
 802               _gdk_window_update_size (window);
 803               _gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl));
 804
 805               if (window->resize_count >= 1)
 806                 {
 807                   window->resize_count -= 1;
 808
 809                   if (window->resize_count == 0)
 810                     _gdk_x11_moveresize_configure_done (display, window);
 811                 }
 812             }
 813         }
 814       break;
 815
 816     case PropertyNotify:
 817       GDK_NOTE (EVENTS,
 818                 g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s",
 819                            xevent->xproperty.window,
 820                            xevent->xproperty.atom,
 821                            "\"",
 822                            gdk_x11_get_xatom_name_for_display (display, xevent->xproperty.atom),
 823                            "\""));
 824
 825       if (window == NULL)
 826         {
 827           return_val = FALSE;
 828           break;
 829         }
 830
 831       /* We compare with the serial of the last time we mapped the
 832        * window to avoid refetching properties that we set ourselves
 833        */
 834       if (toplevel &&
 835           xevent->xproperty.serial >= toplevel->map_serial)
 836         {
 837           if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"))
 838             gdk_check_wm_state_changed (window);
 839
 840           if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"))
 841             gdk_check_wm_desktop_changed (window);
 842         }
 843
 844       if (window->event_mask & GDK_PROPERTY_CHANGE_MASK)
 845         {
 846           event->property.type = GDK_PROPERTY_NOTIFY;
 847           event->property.window = window;
 848           event->property.atom = gdk_x11_xatom_to_atom_for_display (display, xevent->xproperty.atom);
 849           event->property.time = xevent->xproperty.time;
 850           event->property.state = xevent->xproperty.state;
 851         }
 852       else
 853         return_val = FALSE;
 854
 855       break;
 856
 857     case SelectionClear:
 858       GDK_NOTE (EVENTS,
 859                 g_message ("selection clear:\twindow: %ld",
 860                            xevent->xproperty.window));
 861
 862       if (_gdk_x11_selection_filter_clear_event (&xevent->xselectionclear))
 863         {
 864           event->selection.type = GDK_SELECTION_CLEAR;
 865           event->selection.window = window;
 866           event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionclear.selection);
 867           event->selection.time = xevent->xselectionclear.time;
 868         }
 869       else
 870         return_val = FALSE;
 871
 872       break;
 873
 874     case SelectionRequest:
 875       GDK_NOTE (EVENTS,
 876                 g_message ("selection request:\twindow: %ld",
 877                            xevent->xproperty.window));
 878
 879       event->selection.type = GDK_SELECTION_REQUEST;
 880       event->selection.window = window;
 881       event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.selection);
 882       event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.target);
 883       event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.property);
 884       if (xevent->xselectionrequest.requestor != None)
 885         event->selection.requestor = gdk_x11_window_foreign_new_for_display (display,
 886                                                                              xevent->xselectionrequest.requestor);
 887       else
 888         event->selection.requestor = NULL;
 889       event->selection.time = xevent->xselectionrequest.time;
 890
 891       break;
 892
 893     case SelectionNotify:
 894       GDK_NOTE (EVENTS,
 895                 g_message ("selection notify:\twindow: %ld",
 896                            xevent->xproperty.window));
 897
 898       event->selection.type = GDK_SELECTION_NOTIFY;
 899       event->selection.window = window;
 900       event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.selection);
 901       event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.target);
 902       if (xevent->xselection.property == None)
 903         event->selection.property = GDK_NONE;
 904       else
 905         event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.property);
 906       event->selection.time = xevent->xselection.time;
 907
 908       break;
 909
 910     case ColormapNotify:
 911       GDK_NOTE (EVENTS,
 912                 g_message ("colormap notify:\twindow: %ld",
 913                            xevent->xcolormap.window));
 914
 915       /* Not currently handled */
 916       return_val = FALSE;
 917       break;
 918
 919     case ClientMessage:
 920       GDK_NOTE (EVENTS,
 921                 g_message ("client message:\twindow: %ld",
 922                            xevent->xclient.window));
 923
 924       /* Not currently handled */
 925       return_val = FALSE;
 926       break;
 927
 928     case MappingNotify:
 929       GDK_NOTE (EVENTS,
 930                 g_message ("mapping notify"));
 931
 932       /* Let XLib know that there is a new keyboard mapping.
 933        */
 934       XRefreshKeyboardMapping (&xevent->xmapping);
 935       _gdk_x11_keymap_keys_changed (display);
 936       return_val = FALSE;
 937       break;
 938
 939     default:
 940 #ifdef HAVE_XFIXES
 941       if (xevent->type - display_x11->xfixes_event_base == XFixesSelectionNotify)
 942         {
 943           XFixesSelectionNotifyEvent *selection_notify = (XFixesSelectionNotifyEvent *)xevent;
 944
 945           _gdk_x11_screen_process_owner_change (screen, xevent);
 946
 947           event->owner_change.type = GDK_OWNER_CHANGE;
 948           event->owner_change.window = window;
 949           if (selection_notify->owner != None)
 950             event->owner_change.owner = gdk_x11_window_foreign_new_for_display (display,
 951                                                                                 selection_notify->owner);
 952           else
 953             event->owner_change.owner = NULL;
 954           event->owner_change.reason = selection_notify->subtype;
 955           event->owner_change.selection =
 956             gdk_x11_xatom_to_atom_for_display (display,
 957                                                selection_notify->selection);
 958           event->owner_change.time = selection_notify->timestamp;
 959           event->owner_change.selection_time = selection_notify->selection_timestamp;
 960
 961           return_val = TRUE;
 962         }
 963       else
 964 #endif
 965 #ifdef HAVE_RANDR
 966       if (xevent->type - display_x11->xrandr_event_base == RRScreenChangeNotify ||
 967           xevent->type - display_x11->xrandr_event_base == RRNotify)
 968         {
 969           if (screen)
 970             _gdk_x11_screen_size_changed (screen, xevent);
 971         }
 972       else
 973 #endif
 974 #if defined(HAVE_XCOMPOSITE) && defined (HAVE_XDAMAGE) && defined (HAVE_XFIXES)
 975       if (display_x11->have_xdamage && window && window->composited &&
 976           xevent->type == display_x11->xdamage_event_base + XDamageNotify &&
 977           ((XDamageNotifyEvent *) xevent)->damage == window_impl->damage)
 978         {
 979           XDamageNotifyEvent *damage_event = (XDamageNotifyEvent *) xevent;
 980           XserverRegion repair;
 981           GdkRectangle rect;
 982
 983           rect.x = window->x + damage_event->area.x;
 984           rect.y = window->y + damage_event->area.y;
 985           rect.width = damage_event->area.width;
 986           rect.height = damage_event->area.height;
 987
 988           repair = XFixesCreateRegion (display_x11->xdisplay,
 989                                        &damage_event->area, 1);
 990           XDamageSubtract (display_x11->xdisplay,
 991                            window_impl->damage,
 992                            repair, None);
 993           XFixesDestroyRegion (display_x11->xdisplay, repair);
 994
 995           if (window->parent != NULL)
 996            _gdk_x11_window_process_expose (window->parent,
 997                                            damage_event->serial, &rect);
 998
 999           return_val = TRUE;
1000         }
1001       else
1002 #endif
1003 #ifdef HAVE_XKB
1004       if (xevent->type == display_x11->xkb_event_type)
1005         {
1006           XkbEvent *xkb_event = (XkbEvent *) xevent;
1007
1008           switch (xkb_event->any.xkb_type)
1009             {
1010             case XkbNewKeyboardNotify:
1011             case XkbMapNotify:
1012               _gdk_x11_keymap_keys_changed (display);
1013
1014               return_val = FALSE;
1015               break;
1016
1017             case XkbStateNotify:
1018               _gdk_x11_keymap_state_changed (display, xevent);
1019               break;
1020             }
1021         }
1022       else
1023 #endif
1024         return_val = FALSE;
1025     }
1026
1027  done:
1028   if (return_val)
1029     {
1030       if (event->any.window)
1031         g_object_ref (event->any.window);
1032     }
1033   else
1034     {
1035       /* Mark this event as having no resources to be freed */
1036       event->any.window = NULL;
1037       event->any.type = GDK_NOTHING;
1038     }
1039
1040   if (window)
1041     g_object_unref (window);
1042
1043   return return_val;
1044 }
1045
1046 GdkFilterReturn
1047 _gdk_wm_protocols_filter (GdkXEvent *xev,
1048                           GdkEvent  *event,
1049                           gpointer   data)
1050 {
1051   XEvent *xevent = (XEvent *)xev;
1052   GdkWindow *win = event->any.window;
1053   GdkDisplay *display;
1054   Atom atom;
1055
1056   if (!GDK_IS_X11_WINDOW (win))
1057     return GDK_FILTER_CONTINUE;
1058
1059   if (xevent->type != ClientMessage)
1060     return GDK_FILTER_CONTINUE;
1061
1062   display = GDK_WINDOW_DISPLAY (win);
1063
1064   if (xevent->xclient.message_type != gdk_x11_get_xatom_by_name_for_display (display, "WM_PROTOCOLS"))
1065     return GDK_FILTER_CONTINUE;
1066
1067   atom = (Atom) xevent->xclient.data.l[0];
1068
1069   if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW"))
1070     {
1071   /* The delete window request specifies a window
1072    *  to delete. We don't actually destroy the
1073    *  window because "it is only a request". (The
1074    *  window might contain vital data that the
1075    *  program does not want destroyed). Instead
1076    *  the event is passed along to the program,
1077    *  which should then destroy the window.
1078    */
1079       GDK_NOTE (EVENTS,
1080                 g_message ("delete window:\t\twindow: %ld",
1081                            xevent->xclient.window));
1082
1083       event->any.type = GDK_DELETE;
1084
1085       gdk_x11_window_set_user_time (win, xevent->xclient.data.l[1]);
1086
1087       return GDK_FILTER_TRANSLATE;
1088     }
1089   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_TAKE_FOCUS"))
1090     {
1091       GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
1092
1093       /* There is no way of knowing reliably whether we are viewable;
1094        * so trap errors asynchronously around the XSetInputFocus call
1095        */
1096       if (toplevel && win->accept_focus)
1097         {
1098           gdk_x11_display_error_trap_push (display);
1099           XSetInputFocus (GDK_DISPLAY_XDISPLAY (display),
1100                           toplevel->focus_window,
1101                           RevertToParent,
1102                           xevent->xclient.data.l[1]);
1103           gdk_x11_display_error_trap_pop_ignored (display);
1104        }
1105
1106       return GDK_FILTER_REMOVE;
1107     }
1108   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING") &&
1109            !_gdk_x11_display_is_root_window (display,
1110                                              xevent->xclient.window))
1111     {
1112       XClientMessageEvent xclient = xevent->xclient;
1113
1114       xclient.window = GDK_WINDOW_XROOTWIN (win);
1115       XSendEvent (GDK_WINDOW_XDISPLAY (win),
1116                   xclient.window,
1117                   False,
1118                   SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xclient);
1119
1120       return GDK_FILTER_REMOVE;
1121     }
1122   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_SYNC_REQUEST") &&
1123            GDK_X11_DISPLAY (display)->use_sync)
1124     {
1125       GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
1126       if (toplevel)
1127         {
1128 #ifdef HAVE_XSYNC
1129           XSyncIntsToValue (&toplevel->pending_counter_value,
1130                             xevent->xclient.data.l[2],
1131                             xevent->xclient.data.l[3]);
1132 #endif
1133         }
1134       return GDK_FILTER_REMOVE;
1135     }
1136
1137   return GDK_FILTER_CONTINUE;
1138 }
1139
1140 static void
1141 gdk_event_init (GdkDisplay *display)
1142 {
1143   GdkX11Display *display_x11;
1144   GdkDeviceManager *device_manager;
1145
1146   display_x11 = GDK_X11_DISPLAY (display);
1147   display_x11->event_source = gdk_x11_event_source_new (display);
1148
1149   gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
1150                                        GDK_EVENT_TRANSLATOR (display));
1151
1152   device_manager = gdk_display_get_device_manager (display);
1153   gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
1154                                         GDK_EVENT_TRANSLATOR (device_manager));
1155 }
1156
1157 static void
1158 gdk_x11_display_init_input (GdkDisplay *display)
1159 {
1160   GdkX11Display *display_x11;
1161   GdkDeviceManager *device_manager;
1162   GdkDevice *device;
1163   GList *list, *l;
1164
1165   display_x11 = GDK_X11_DISPLAY (display);
1166   device_manager = gdk_display_get_device_manager (display);
1167
1168   /* For backwards compatibility, just add
1169    * floating devices that are not keyboards.
1170    */
1171   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING);
1172
1173   for (l = list; l; l = l->next)
1174     {
1175       device = l->data;
1176
1177       if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
1178         continue;
1179
1180       display_x11->input_devices = g_list_prepend (display_x11->input_devices,
1181                                                    g_object_ref (l->data));
1182     }
1183
1184   g_list_free (list);
1185
1186   /* Now set "core" pointer to the first
1187    * master device that is a pointer.
1188    */
1189   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
1190
1191   for (l = list; l; l = l->next)
1192     {
1193       device = l->data;
1194
1195       if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE)
1196         continue;
1197
1198       display->core_pointer = device;
1199       break;
1200     }
1201
1202   /* Add the core pointer to the devices list */
1203   display_x11->input_devices = g_list_prepend (display_x11->input_devices,
1204                                                g_object_ref (display->core_pointer));
1205
1206   g_list_free (list);
1207 }
1208
1209 static void
1210 set_sm_client_id (GdkDisplay  *display,
1211                   const gchar *sm_client_id)
1212 {
1213   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1214
1215   if (gdk_display_is_closed (display))
1216     return;
1217
1218   if (sm_client_id && strcmp (sm_client_id, ""))
1219     XChangeProperty (display_x11->xdisplay, display_x11->leader_window,
1220                      gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"),
1221                      XA_STRING, 8, PropModeReplace, (guchar *)sm_client_id,
1222                      strlen (sm_client_id));
1223   else
1224     XDeleteProperty (display_x11->xdisplay, display_x11->leader_window,
1225                      gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"));
1226 }
1227
1228 GdkDisplay *
1229 _gdk_x11_display_open (const gchar *display_name)
1230 {
1231   Display *xdisplay;
1232   GdkDisplay *display;
1233   GdkX11Display *display_x11;
1234   GdkWindowAttr attr;
1235   gint argc;
1236   gchar *argv[1];
1237
1238   XClassHint *class_hint;
1239   gulong pid;
1240   gint i;
1241   gint ignore;
1242   gint maj, min;
1243
1244   xdisplay = XOpenDisplay (display_name);
1245   if (!xdisplay)
1246     return NULL;
1247
1248   display = g_object_new (GDK_TYPE_X11_DISPLAY, NULL);
1249   display_x11 = GDK_X11_DISPLAY (display);
1250
1251   display_x11->xdisplay = xdisplay;
1252
1253   /* Set up handlers for Xlib internal connections */
1254   XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
1255
1256   _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
1257
1258   /* RandR must be initialized before we initialize the screens */
1259   display_x11->have_randr12 = FALSE;
1260   display_x11->have_randr13 = FALSE;
1261 #ifdef HAVE_RANDR
1262   if (XRRQueryExtension (display_x11->xdisplay,
1263                          &display_x11->xrandr_event_base, &ignore))
1264   {
1265       int major, minor;
1266
1267       XRRQueryVersion (display_x11->xdisplay, &major, &minor);
1268
1269       if ((major == 1 && minor >= 2) || major > 1) {
1270           display_x11->have_randr12 = TRUE;
1271           if (minor >= 3 || major > 1)
1272               display_x11->have_randr13 = TRUE;
1273       }
1274
1275        gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents);
1276   }
1277 #endif
1278
1279   /* initialize the display's screens */
1280   display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
1281   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1282     display_x11->screens[i] = _gdk_x11_screen_new (display, i);
1283
1284   /* We need to initialize events after we have the screen
1285    * structures in places
1286    */
1287   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1288     _gdk_x11_screen_init_events (display_x11->screens[i]);
1289
1290   /*set the default screen */
1291   display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
1292
1293   display->device_manager = _gdk_x11_device_manager_new (display);
1294
1295   gdk_event_init (display);
1296
1297   attr.window_type = GDK_WINDOW_TOPLEVEL;
1298   attr.wclass = GDK_INPUT_OUTPUT;
1299   attr.x = 10;
1300   attr.y = 10;
1301   attr.width = 10;
1302   attr.height = 10;
1303   attr.event_mask = 0;
1304
1305   display_x11->leader_gdk_window = gdk_window_new (GDK_X11_SCREEN (display_x11->default_screen)->root_window,
1306                                                    &attr, GDK_WA_X | GDK_WA_Y);
1307   (_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
1308
1309   display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
1310
1311   display_x11->leader_window_title_set = FALSE;
1312
1313 #ifdef HAVE_XFIXES
1314   if (XFixesQueryExtension (display_x11->xdisplay,
1315                             &display_x11->xfixes_event_base,
1316                             &ignore))
1317     {
1318       display_x11->have_xfixes = TRUE;
1319
1320       gdk_x11_register_standard_event_type (display,
1321                                             display_x11->xfixes_event_base,
1322                                             XFixesNumberEvents);
1323     }
1324   else
1325 #endif
1326     display_x11->have_xfixes = FALSE;
1327
1328 #ifdef HAVE_XCOMPOSITE
1329   if (XCompositeQueryExtension (display_x11->xdisplay,
1330                                 &ignore, &ignore))
1331     {
1332       int major, minor;
1333
1334       XCompositeQueryVersion (display_x11->xdisplay, &major, &minor);
1335
1336       /* Prior to Composite version 0.4, composited windows clipped their
1337        * parents, so you had to use IncludeInferiors to draw to the parent
1338        * This isn't useful for our purposes, so require 0.4
1339        */
1340       display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4);
1341     }
1342   else
1343 #endif
1344     display_x11->have_xcomposite = FALSE;
1345
1346 #ifdef HAVE_XDAMAGE
1347   if (XDamageQueryExtension (display_x11->xdisplay,
1348                              &display_x11->xdamage_event_base,
1349                              &ignore))
1350     {
1351       display_x11->have_xdamage = TRUE;
1352
1353       gdk_x11_register_standard_event_type (display,
1354                                             display_x11->xdamage_event_base,
1355                                             XDamageNumberEvents);
1356     }
1357   else
1358 #endif
1359     display_x11->have_xdamage = FALSE;
1360
1361   display_x11->have_shapes = FALSE;
1362   display_x11->have_input_shapes = FALSE;
1363
1364   if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &display_x11->shape_event_base, &ignore))
1365     {
1366       display_x11->have_shapes = TRUE;
1367 #ifdef ShapeInput
1368       if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min))
1369         display_x11->have_input_shapes = (maj == 1 && min >= 1);
1370 #endif
1371     }
1372
1373   display_x11->trusted_client = TRUE;
1374   {
1375     Window root, child;
1376     int rootx, rooty, winx, winy;
1377     unsigned int xmask;
1378
1379     gdk_x11_display_error_trap_push (display);
1380     XQueryPointer (display_x11->xdisplay,
1381                    GDK_X11_SCREEN (display_x11->default_screen)->xroot_window,
1382                    &root, &child, &rootx, &rooty, &winx, &winy, &xmask);
1383     if (G_UNLIKELY (gdk_x11_display_error_trap_pop (display) == BadWindow))
1384       {
1385         g_warning ("Connection to display %s appears to be untrusted. Pointer and keyboard grabs and inter-client communication may not work as expected.", gdk_display_get_name (display));
1386         display_x11->trusted_client = FALSE;
1387       }
1388   }
1389
1390   if (g_getenv ("GDK_SYNCHRONIZE"))
1391     XSynchronize (display_x11->xdisplay, True);
1392
1393   class_hint = XAllocClassHint();
1394   class_hint->res_name = (char *) g_get_prgname ();
1395   class_hint->res_class = (char *)gdk_get_program_class ();
1396
1397   /* XmbSetWMProperties sets the RESOURCE_NAME environment variable
1398    * from argv[0], so we just synthesize an argument array here.
1399    */
1400   argc = 1;
1401   argv[0] = (char *) g_get_prgname ();
1402
1403   XmbSetWMProperties (display_x11->xdisplay,
1404                       display_x11->leader_window,
1405                       NULL, NULL, argv, argc, NULL, NULL,
1406                       class_hint);
1407   XFree (class_hint);
1408
1409   if (gdk_sm_client_id)
1410     set_sm_client_id (display, gdk_sm_client_id);
1411
1412   pid = getpid ();
1413   XChangeProperty (display_x11->xdisplay,
1414                    display_x11->leader_window,
1415                    gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
1416                    XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
1417
1418   /* We don't yet know a valid time. */
1419   display_x11->user_time = 0;
1420
1421 #ifdef HAVE_XKB
1422   {
1423     gint xkb_major = XkbMajorVersion;
1424     gint xkb_minor = XkbMinorVersion;
1425     if (XkbLibraryVersion (&xkb_major, &xkb_minor))
1426       {
1427         xkb_major = XkbMajorVersion;
1428         xkb_minor = XkbMinorVersion;
1429
1430         if (XkbQueryExtension (display_x11->xdisplay,
1431                                NULL, &display_x11->xkb_event_type, NULL,
1432                                &xkb_major, &xkb_minor))
1433           {
1434             Bool detectable_autorepeat_supported;
1435
1436             display_x11->use_xkb = TRUE;
1437
1438             XkbSelectEvents (display_x11->xdisplay,
1439                              XkbUseCoreKbd,
1440                              XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
1441                              XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
1442
1443             /* keep this in sync with _gdk_x11_keymap_state_changed() */
1444             XkbSelectEventDetails (display_x11->xdisplay,
1445                                    XkbUseCoreKbd, XkbStateNotify,
1446                                    XkbAllStateComponentsMask,
1447                                    XkbModifierStateMask|XkbGroupStateMask);
1448
1449             XkbSetDetectableAutoRepeat (display_x11->xdisplay,
1450                                         True,
1451                                         &detectable_autorepeat_supported);
1452
1453             GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
1454                                        detectable_autorepeat_supported ?
1455                                        "supported" : "not supported"));
1456
1457             display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
1458           }
1459       }
1460   }
1461 #endif
1462
1463   display_x11->use_sync = FALSE;
1464 #ifdef HAVE_XSYNC
1465   {
1466     int major, minor;
1467     int error_base, event_base;
1468
1469     if (XSyncQueryExtension (display_x11->xdisplay,
1470                              &event_base, &error_base) &&
1471         XSyncInitialize (display_x11->xdisplay,
1472                          &major, &minor))
1473       display_x11->use_sync = TRUE;
1474   }
1475 #endif
1476
1477   gdk_x11_display_init_input (display);
1478
1479   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1480     _gdk_x11_screen_setup (display_x11->screens[i]);
1481
1482   g_signal_emit_by_name (display, "opened");
1483
1484   return display;
1485 }
1486
1487 /*
1488  * XLib internal connection handling
1489  */
1490 typedef struct _GdkInternalConnection GdkInternalConnection;
1491
1492 struct _GdkInternalConnection
1493 {
1494   gint           fd;
1495   GSource       *source;
1496   Display       *display;
1497 };
1498
1499 static gboolean
1500 process_internal_connection (GIOChannel  *gioc,
1501                              GIOCondition cond,
1502                              gpointer     data)
1503 {
1504   GdkInternalConnection *connection = (GdkInternalConnection *)data;
1505
1506   gdk_threads_enter ();
1507
1508   XProcessInternalConnection ((Display*)connection->display, connection->fd);
1509
1510   gdk_threads_leave ();
1511
1512   return TRUE;
1513 }
1514
1515 static gulong
1516 gdk_x11_display_get_next_serial (GdkDisplay *display)
1517 {
1518   return NextRequest (GDK_DISPLAY_XDISPLAY (display));
1519 }
1520
1521
1522 static GdkInternalConnection *
1523 gdk_add_connection_handler (Display *display,
1524                             guint    fd)
1525 {
1526   GIOChannel *io_channel;
1527   GdkInternalConnection *connection;
1528
1529   connection = g_new (GdkInternalConnection, 1);
1530
1531   connection->fd = fd;
1532   connection->display = display;
1533
1534   io_channel = g_io_channel_unix_new (fd);
1535
1536   connection->source = g_io_create_watch (io_channel, G_IO_IN);
1537   g_source_set_callback (connection->source,
1538                          (GSourceFunc)process_internal_connection, connection, NULL);
1539   g_source_attach (connection->source, NULL);
1540
1541   g_io_channel_unref (io_channel);
1542
1543   return connection;
1544 }
1545
1546 static void
1547 gdk_remove_connection_handler (GdkInternalConnection *connection)
1548 {
1549   g_source_destroy (connection->source);
1550   g_free (connection);
1551 }
1552
1553 static void
1554 gdk_internal_connection_watch (Display  *display,
1555                                XPointer  arg,
1556                                gint      fd,
1557                                gboolean  opening,
1558                                XPointer *watch_data)
1559 {
1560   if (opening)
1561     *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
1562   else
1563     gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
1564 }
1565
1566 static const gchar *
1567 gdk_x11_display_get_name (GdkDisplay *display)
1568 {
1569   return (gchar *) DisplayString (GDK_X11_DISPLAY (display)->xdisplay);
1570 }
1571
1572 static gint
1573 gdk_x11_display_get_n_screens (GdkDisplay *display)
1574 {
1575   return ScreenCount (GDK_X11_DISPLAY (display)->xdisplay);
1576 }
1577
1578 static GdkScreen *
1579 gdk_x11_display_get_screen (GdkDisplay *display,
1580                             gint        screen_num)
1581 {
1582   g_return_val_if_fail (ScreenCount (GDK_X11_DISPLAY (display)->xdisplay) > screen_num, NULL);
1583
1584   return GDK_X11_DISPLAY (display)->screens[screen_num];
1585 }
1586
1587 static GdkScreen *
1588 gdk_x11_display_get_default_screen (GdkDisplay *display)
1589 {
1590   return GDK_X11_DISPLAY (display)->default_screen;
1591 }
1592
1593 gboolean
1594 _gdk_x11_display_is_root_window (GdkDisplay *display,
1595                                  Window      xroot_window)
1596 {
1597   GdkX11Display *display_x11;
1598   gint i;
1599
1600   display_x11 = GDK_X11_DISPLAY (display);
1601
1602   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1603     {
1604       if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
1605         return TRUE;
1606     }
1607   return FALSE;
1608 }
1609
1610 struct XPointerUngrabInfo {
1611   GdkDisplay *display;
1612   guint32 time;
1613 };
1614
1615 static void
1616 device_grab_update_callback (GdkDisplay *display,
1617                              gpointer    data,
1618                              gulong      serial)
1619 {
1620   GdkPointerWindowInfo *pointer_info;
1621   GdkDevice *device = data;
1622
1623   pointer_info = _gdk_display_get_pointer_info (display, device);
1624   _gdk_display_device_grab_update (display, device,
1625                                    pointer_info->last_slave, serial);
1626 }
1627
1628 #define XSERVER_TIME_IS_LATER(time1, time2)                        \
1629   ( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) ||  \
1630     (( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 ))     \
1631   )
1632
1633 void
1634 _gdk_x11_display_update_grab_info (GdkDisplay *display,
1635                                    GdkDevice  *device,
1636                                    gint        status)
1637 {
1638   if (status == GrabSuccess)
1639     _gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
1640 }
1641
1642 void
1643 _gdk_x11_display_update_grab_info_ungrab (GdkDisplay *display,
1644                                           GdkDevice  *device,
1645                                           guint32     time,
1646                                           gulong      serial)
1647 {
1648   GdkDeviceGrabInfo *grab;
1649
1650   XFlush (GDK_DISPLAY_XDISPLAY (display));
1651
1652   grab = _gdk_display_get_last_device_grab (display, device);
1653   if (grab &&
1654       (time == GDK_CURRENT_TIME ||
1655        grab->time == GDK_CURRENT_TIME ||
1656        !XSERVER_TIME_IS_LATER (grab->time, time)))
1657     {
1658       grab->serial_end = serial;
1659       _gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
1660     }
1661 }
1662
1663 static void
1664 gdk_x11_display_beep (GdkDisplay *display)
1665 {
1666 #ifdef HAVE_XKB
1667   XkbBell (GDK_DISPLAY_XDISPLAY (display), None, 0, None);
1668 #else
1669   XBell (GDK_DISPLAY_XDISPLAY (display), 0);
1670 #endif
1671 }
1672
1673 static void
1674 gdk_x11_display_sync (GdkDisplay *display)
1675 {
1676   XSync (GDK_DISPLAY_XDISPLAY (display), False);
1677 }
1678
1679 static void
1680 gdk_x11_display_flush (GdkDisplay *display)
1681 {
1682   if (!display->closed)
1683     XFlush (GDK_DISPLAY_XDISPLAY (display));
1684 }
1685
1686 static gboolean
1687 gdk_x11_display_has_pending (GdkDisplay *display)
1688 {
1689   return XPending (GDK_DISPLAY_XDISPLAY (display));
1690 }
1691
1692 static GdkWindow *
1693 gdk_x11_display_get_default_group (GdkDisplay *display)
1694 {
1695   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1696
1697   return GDK_X11_DISPLAY (display)->leader_gdk_window;
1698 }
1699
1700 /**
1701  * gdk_x11_display_grab:
1702  * @display: (type GdkX11Display): a #GdkDisplay
1703  *
1704  * Call XGrabServer() on @display.
1705  * To ungrab the display again, use gdk_x11_display_ungrab().
1706  *
1707  * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
1708  *
1709  * Since: 2.2
1710  **/
1711 void
1712 gdk_x11_display_grab (GdkDisplay *display)
1713 {
1714   GdkX11Display *display_x11;
1715
1716   g_return_if_fail (GDK_IS_DISPLAY (display));
1717
1718   display_x11 = GDK_X11_DISPLAY (display);
1719
1720   if (display_x11->grab_count == 0)
1721     XGrabServer (display_x11->xdisplay);
1722   display_x11->grab_count++;
1723 }
1724
1725 /**
1726  * gdk_x11_display_ungrab:
1727  * @display: (type GdkX11Display): a #GdkDisplay
1728  *
1729  * Ungrab @display after it has been grabbed with
1730  * gdk_x11_display_grab().
1731  *
1732  * Since: 2.2
1733  **/
1734 void
1735 gdk_x11_display_ungrab (GdkDisplay *display)
1736 {
1737   GdkX11Display *display_x11;
1738
1739   g_return_if_fail (GDK_IS_DISPLAY (display));
1740
1741   display_x11 = GDK_X11_DISPLAY (display);;
1742   g_return_if_fail (display_x11->grab_count > 0);
1743
1744   display_x11->grab_count--;
1745   if (display_x11->grab_count == 0)
1746     {
1747       XUngrabServer (display_x11->xdisplay);
1748       XFlush (display_x11->xdisplay);
1749     }
1750 }
1751
1752 static void
1753 gdk_x11_display_dispose (GObject *object)
1754 {
1755   GdkDisplay *display = GDK_DISPLAY (object);
1756   GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
1757   gint           i;
1758
1759   _gdk_x11_display_manager_remove_display (gdk_display_manager_get (), display);
1760
1761   g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL);
1762
1763   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1764     _gdk_screen_close (display_x11->screens[i]);
1765
1766   if (display_x11->event_source)
1767     {
1768       g_source_destroy (display_x11->event_source);
1769       g_source_unref (display_x11->event_source);
1770       display_x11->event_source = NULL;
1771     }
1772
1773   G_OBJECT_CLASS (gdk_x11_display_parent_class)->dispose (object);
1774 }
1775
1776 static void
1777 gdk_x11_display_finalize (GObject *object)
1778 {
1779   GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
1780   gint           i;
1781
1782   /* Keymap */
1783   if (display_x11->keymap)
1784     g_object_unref (display_x11->keymap);
1785
1786   /* Free motif Dnd */
1787   if (display_x11->motif_target_lists)
1788     {
1789       for (i = 0; i < display_x11->motif_n_target_lists; i++)
1790         g_list_free (display_x11->motif_target_lists[i]);
1791       g_free (display_x11->motif_target_lists);
1792     }
1793
1794   _gdk_x11_cursor_display_finalize (GDK_DISPLAY (display_x11));
1795
1796   /* Empty the event queue */
1797   _gdk_x11_display_free_translate_queue (GDK_DISPLAY (display_x11));
1798
1799   /* Atom Hashtable */
1800   g_hash_table_destroy (display_x11->atom_from_virtual);
1801   g_hash_table_destroy (display_x11->atom_to_virtual);
1802
1803   /* Leader Window */
1804   XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
1805
1806   /* List of event window extraction functions */
1807   g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
1808   g_slist_free (display_x11->event_types);
1809
1810   /* input GdkDevice list */
1811   g_list_free_full (display_x11->input_devices, g_object_unref);
1812
1813   /* input GdkWindow list */
1814   g_list_free_full (display_x11->input_windows, g_free);
1815
1816   /* Free all GdkScreens */
1817   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1818     g_object_unref (display_x11->screens[i]);
1819   g_free (display_x11->screens);
1820
1821   g_free (display_x11->startup_notification_id);
1822
1823   /* X ID hashtable */
1824   g_hash_table_destroy (display_x11->xid_ht);
1825
1826   XCloseDisplay (display_x11->xdisplay);
1827
1828   /* error traps */
1829   while (display_x11->error_traps != NULL)
1830     {
1831       GdkErrorTrap *trap = display_x11->error_traps->data;
1832
1833       display_x11->error_traps =
1834         g_slist_delete_link (display_x11->error_traps,
1835                              display_x11->error_traps);
1836
1837       if (trap->end_sequence == 0)
1838         g_warning ("Display finalized with an unpopped error trap");
1839
1840       g_slice_free (GdkErrorTrap, trap);
1841     }
1842
1843   G_OBJECT_CLASS (gdk_x11_display_parent_class)->finalize (object);
1844 }
1845
1846 /**
1847  * gdk_x11_lookup_xdisplay:
1848  * @xdisplay: a pointer to an X Display
1849  *
1850  * Find the #GdkDisplay corresponding to @display, if any exists.
1851  *
1852  * Return value: (transfer none): the #GdkDisplay, if found, otherwise %NULL.
1853  *
1854  * Since: 2.2
1855  **/
1856 GdkDisplay *
1857 gdk_x11_lookup_xdisplay (Display *xdisplay)
1858 {
1859   GSList *list, *l;
1860   GdkDisplay *display;
1861
1862   display = NULL;
1863
1864   list = gdk_display_manager_list_displays (gdk_display_manager_get ());
1865
1866   for (l = list; l; l = l->next)
1867     {
1868       if (GDK_DISPLAY_XDISPLAY (l->data) == xdisplay)
1869         {
1870           display = l->data;
1871           break;
1872         }
1873     }
1874
1875   g_slist_free (list);
1876
1877   return display;
1878 }
1879
1880 /**
1881  * _gdk_x11_display_screen_for_xrootwin:
1882  * @display: a #GdkDisplay
1883  * @xrootwin: window ID for one of of the screen's of the display.
1884  *
1885  * Given the root window ID of one of the screen's of a #GdkDisplay,
1886  * finds the screen.
1887  *
1888  * Return value: (transfer none): the #GdkScreen corresponding to
1889  *     @xrootwin, or %NULL.
1890  **/
1891 GdkScreen *
1892 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
1893                                       Window      xrootwin)
1894 {
1895   gint i;
1896
1897   for (i = 0; i < ScreenCount (GDK_X11_DISPLAY (display)->xdisplay); i++)
1898     {
1899       GdkScreen *screen = gdk_display_get_screen (display, i);
1900       if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
1901         return screen;
1902     }
1903
1904   return NULL;
1905 }
1906
1907 /**
1908  * gdk_x11_display_get_xdisplay:
1909  * @display: (type GdkX11Display): a #GdkDisplay
1910  *
1911  * Returns the X display of a #GdkDisplay.
1912  *
1913  * Returns: (transfer none): an X display
1914  *
1915  * Since: 2.2
1916  */
1917 Display *
1918 gdk_x11_display_get_xdisplay (GdkDisplay *display)
1919 {
1920   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1921   return GDK_X11_DISPLAY (display)->xdisplay;
1922 }
1923
1924 void
1925 _gdk_x11_display_make_default (GdkDisplay *display)
1926 {
1927   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1928   const gchar *startup_id;
1929
1930   g_free (display_x11->startup_notification_id);
1931   display_x11->startup_notification_id = NULL;
1932
1933   startup_id = g_getenv ("DESKTOP_STARTUP_ID");
1934   if (startup_id && *startup_id != '\0')
1935     {
1936       if (!g_utf8_validate (startup_id, -1, NULL))
1937         g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
1938       else
1939         gdk_x11_display_set_startup_notification_id (display, startup_id);
1940
1941       /* Clear the environment variable so it won't be inherited by
1942        * child processes and confuse things.
1943        */
1944       g_unsetenv ("DESKTOP_STARTUP_ID");
1945     }
1946 }
1947
1948 static void
1949 broadcast_xmessage (GdkDisplay *display,
1950                     const char *message_type,
1951                     const char *message_type_begin,
1952                     const char *message)
1953 {
1954   Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
1955   GdkScreen *screen = gdk_display_get_default_screen (display);
1956   GdkWindow *root_window = gdk_screen_get_root_window (screen);
1957   Window xroot_window = GDK_WINDOW_XID (root_window);
1958
1959   Atom type_atom;
1960   Atom type_atom_begin;
1961   Window xwindow;
1962
1963   if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
1964     return;
1965
1966   {
1967     XSetWindowAttributes attrs;
1968
1969     attrs.override_redirect = True;
1970     attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
1971
1972     xwindow =
1973       XCreateWindow (xdisplay,
1974                      xroot_window,
1975                      -100, -100, 1, 1,
1976                      0,
1977                      CopyFromParent,
1978                      CopyFromParent,
1979                      (Visual *)CopyFromParent,
1980                      CWOverrideRedirect | CWEventMask,
1981                      &attrs);
1982   }
1983
1984   type_atom = gdk_x11_get_xatom_by_name_for_display (display,
1985                                                      message_type);
1986   type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
1987                                                            message_type_begin);
1988
1989   {
1990     XClientMessageEvent xclient;
1991     const char *src;
1992     const char *src_end;
1993     char *dest;
1994     char *dest_end;
1995
1996                 memset(&xclient, 0, sizeof (xclient));
1997     xclient.type = ClientMessage;
1998     xclient.message_type = type_atom_begin;
1999     xclient.display =xdisplay;
2000     xclient.window = xwindow;
2001     xclient.format = 8;
2002
2003     src = message;
2004     src_end = message + strlen (message) + 1; /* +1 to include nul byte */
2005
2006     while (src != src_end)
2007       {
2008         dest = &xclient.data.b[0];
2009         dest_end = dest + 20;
2010
2011         while (dest != dest_end &&
2012                src != src_end)
2013           {
2014             *dest = *src;
2015             ++dest;
2016             ++src;
2017           }
2018
2019         while (dest != dest_end)
2020           {
2021             *dest = 0;
2022             ++dest;
2023           }
2024
2025         XSendEvent (xdisplay,
2026                     xroot_window,
2027                     False,
2028                     PropertyChangeMask,
2029                     (XEvent *)&xclient);
2030
2031         xclient.message_type = type_atom;
2032       }
2033   }
2034
2035   XDestroyWindow (xdisplay, xwindow);
2036   XFlush (xdisplay);
2037 }
2038
2039 /**
2040  * gdk_x11_display_broadcast_startup_message:
2041  * @display: (type GdkX11Display): a #GdkDisplay
2042  * @message_type: startup notification message type ("new", "change",
2043  * or "remove")
2044  * @...: a list of key/value pairs (as strings), terminated by a
2045  * %NULL key. (A %NULL value for a key will cause that key to be
2046  * skipped in the output.)
2047  *
2048  * Sends a startup notification message of type @message_type to
2049  * @display.
2050  *
2051  * This is a convenience function for use by code that implements the
2052  * freedesktop startup notification specification. Applications should
2053  * not normally need to call it directly. See the <ulink
2054  * url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">Startup
2055  * Notification Protocol specification</ulink> for
2056  * definitions of the message types and keys that can be used.
2057  *
2058  * Since: 2.12
2059  **/
2060 void
2061 gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
2062                                            const char *message_type,
2063                                            ...)
2064 {
2065   GString *message;
2066   va_list ap;
2067   const char *key, *value, *p;
2068
2069   message = g_string_new (message_type);
2070   g_string_append_c (message, ':');
2071
2072   va_start (ap, message_type);
2073   while ((key = va_arg (ap, const char *)))
2074     {
2075       value = va_arg (ap, const char *);
2076       if (!value)
2077         continue;
2078
2079       g_string_append_printf (message, " %s=\"", key);
2080       for (p = value; *p; p++)
2081         {
2082           switch (*p)
2083             {
2084             case ' ':
2085             case '"':
2086             case '\\':
2087               g_string_append_c (message, '\\');
2088               break;
2089             }
2090
2091           g_string_append_c (message, *p);
2092         }
2093       g_string_append_c (message, '\"');
2094     }
2095   va_end (ap);
2096
2097   broadcast_xmessage (display,
2098                       "_NET_STARTUP_INFO",
2099                       "_NET_STARTUP_INFO_BEGIN",
2100                       message->str);
2101
2102   g_string_free (message, TRUE);
2103 }
2104
2105 static void
2106 gdk_x11_display_notify_startup_complete (GdkDisplay  *display,
2107                                          const gchar *startup_id)
2108 {
2109   if (startup_id == NULL)
2110     {
2111       startup_id = GDK_X11_DISPLAY (display)->startup_notification_id;
2112       if (startup_id == NULL)
2113         return;
2114     }
2115
2116   gdk_x11_display_broadcast_startup_message (display, "remove",
2117                                              "ID", startup_id,
2118                                              NULL);
2119 }
2120
2121 static gboolean
2122 gdk_x11_display_supports_selection_notification (GdkDisplay *display)
2123 {
2124   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2125
2126   return display_x11->have_xfixes;
2127 }
2128
2129 static gboolean
2130 gdk_x11_display_request_selection_notification (GdkDisplay *display,
2131                                                 GdkAtom     selection)
2132
2133 {
2134 #ifdef HAVE_XFIXES
2135   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2136   Atom atom;
2137
2138   if (display_x11->have_xfixes)
2139     {
2140       atom = gdk_x11_atom_to_xatom_for_display (display,
2141                                                 selection);
2142       XFixesSelectSelectionInput (display_x11->xdisplay,
2143                                   display_x11->leader_window,
2144                                   atom,
2145                                   XFixesSetSelectionOwnerNotifyMask |
2146                                   XFixesSelectionWindowDestroyNotifyMask |
2147                                   XFixesSelectionClientCloseNotifyMask);
2148       return TRUE;
2149     }
2150   else
2151 #endif
2152     return FALSE;
2153 }
2154
2155 static gboolean
2156 gdk_x11_display_supports_clipboard_persistence (GdkDisplay *display)
2157 {
2158   Atom clipboard_manager;
2159
2160   /* It might make sense to cache this */
2161   clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
2162   return XGetSelectionOwner (GDK_X11_DISPLAY (display)->xdisplay, clipboard_manager) != None;
2163 }
2164
2165 static void
2166 gdk_x11_display_store_clipboard (GdkDisplay    *display,
2167                                  GdkWindow     *clipboard_window,
2168                                  guint32        time_,
2169                                  const GdkAtom *targets,
2170                                  gint           n_targets)
2171 {
2172   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2173   Atom clipboard_manager, save_targets;
2174
2175   g_return_if_fail (GDK_WINDOW_IS_X11 (clipboard_window));
2176
2177   clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
2178   save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
2179
2180   gdk_x11_display_error_trap_push (display);
2181
2182   if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
2183     {
2184       Atom property_name = None;
2185       Atom *xatoms;
2186       int i;
2187
2188       if (n_targets > 0)
2189         {
2190           property_name = gdk_x11_get_xatom_by_name_for_display (display, "GDK_SELECTION");
2191
2192           xatoms = g_new (Atom, n_targets);
2193           for (i = 0; i < n_targets; i++)
2194             xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
2195
2196           XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
2197                            property_name, XA_ATOM,
2198                            32, PropModeReplace, (guchar *)xatoms, n_targets);
2199           g_free (xatoms);
2200
2201         }
2202
2203       XConvertSelection (display_x11->xdisplay,
2204                          clipboard_manager, save_targets, property_name,
2205                          GDK_WINDOW_XID (clipboard_window), time_);
2206
2207     }
2208   gdk_x11_display_error_trap_pop_ignored (display);
2209
2210 }
2211
2212 /**
2213  * gdk_x11_display_get_user_time:
2214  * @display: (type GdkX11Display): a #GdkDisplay
2215  *
2216  * Returns the timestamp of the last user interaction on
2217  * @display. The timestamp is taken from events caused
2218  * by user interaction such as key presses or pointer
2219  * movements. See gdk_x11_window_set_user_time().
2220  *
2221  * Returns: the timestamp of the last user interaction
2222  *
2223  * Since: 2.8
2224  */
2225 guint32
2226 gdk_x11_display_get_user_time (GdkDisplay *display)
2227 {
2228   return GDK_X11_DISPLAY (display)->user_time;
2229 }
2230
2231 static gboolean
2232 gdk_x11_display_supports_shapes (GdkDisplay *display)
2233 {
2234   return GDK_X11_DISPLAY (display)->have_shapes;
2235 }
2236
2237 static gboolean
2238 gdk_x11_display_supports_input_shapes (GdkDisplay *display)
2239 {
2240   return GDK_X11_DISPLAY (display)->have_input_shapes;
2241 }
2242
2243
2244 /**
2245  * gdk_x11_display_get_startup_notification_id:
2246  * @display: (type GdkX11Display): a #GdkDisplay
2247  *
2248  * Gets the startup notification ID for a display.
2249  *
2250  * Returns: the startup notification ID for @display
2251  *
2252  * Since: 2.12
2253  */
2254 const gchar *
2255 gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
2256 {
2257   return GDK_X11_DISPLAY (display)->startup_notification_id;
2258 }
2259
2260 /**
2261  * gdk_x11_display_set_startup_notification_id:
2262  * @display: (type GdkX11Display): a #GdkDisplay
2263  * @startup_id: the startup notification ID (must be valid utf8)
2264  *
2265  * Sets the startup notification ID for a display.
2266  *
2267  * This is usually taken from the value of the DESKTOP_STARTUP_ID
2268  * environment variable, but in some cases (such as the application not
2269  * being launched using exec()) it can come from other sources.
2270  *
2271  * If the ID contains the string "_TIME" then the portion following that
2272  * string is taken to be the X11 timestamp of the event that triggered
2273  * the application to be launched and the GDK current event time is set
2274  * accordingly.
2275  *
2276  * The startup ID is also what is used to signal that the startup is
2277  * complete (for example, when opening a window or when calling
2278  * gdk_notify_startup_complete()).
2279  *
2280  * Since: 3.0
2281  **/
2282 void
2283 gdk_x11_display_set_startup_notification_id (GdkDisplay  *display,
2284                                              const gchar *startup_id)
2285 {
2286   GdkX11Display *display_x11;
2287   gchar *time_str;
2288
2289   display_x11 = GDK_X11_DISPLAY (display);
2290
2291   g_free (display_x11->startup_notification_id);
2292   display_x11->startup_notification_id = g_strdup (startup_id);
2293
2294   /* Find the launch time from the startup_id, if it's there.  Newer spec
2295    * states that the startup_id is of the form <unique>_TIME<timestamp>
2296    */
2297   time_str = g_strrstr (startup_id, "_TIME");
2298   if (time_str != NULL)
2299     {
2300       gulong retval;
2301       gchar *end;
2302       errno = 0;
2303
2304       /* Skip past the "_TIME" part */
2305       time_str += 5;
2306
2307       retval = strtoul (time_str, &end, 0);
2308       if (end != time_str && errno == 0)
2309         display_x11->user_time = retval;
2310     }
2311
2312   /* Set the startup id on the leader window so it
2313    * applies to all windows we create on this display
2314    */
2315   XChangeProperty (display_x11->xdisplay,
2316                    display_x11->leader_window,
2317                    gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
2318                    gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
2319                    PropModeReplace,
2320                    (guchar *)startup_id, strlen (startup_id));
2321 }
2322
2323 static gboolean
2324 gdk_x11_display_supports_composite (GdkDisplay *display)
2325 {
2326   GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
2327
2328   return x11_display->have_xcomposite &&
2329          x11_display->have_xdamage &&
2330          x11_display->have_xfixes;
2331 }
2332
2333 static GList *
2334 gdk_x11_display_list_devices (GdkDisplay *display)
2335 {
2336   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
2337
2338   return GDK_X11_DISPLAY (display)->input_devices;
2339 }
2340
2341 /**
2342  * gdk_x11_register_standard_event_type:
2343  * @display: a #GdkDisplay
2344  * @event_base: first event type code to register
2345  * @n_events: number of event type codes to register
2346  *
2347  * Registers interest in receiving extension events with type codes
2348  * between @event_base and <literal>event_base + n_events - 1</literal>.
2349  * The registered events must have the window field in the same place
2350  * as core X events (this is not the case for e.g. XKB extension events).
2351  *
2352  * If an event type is registered, events of this type will go through
2353  * global and window-specific filters (see gdk_window_add_filter()).
2354  * Unregistered events will only go through global filters.
2355  * GDK may register the events of some X extensions on its own.
2356  *
2357  * This function should only be needed in unusual circumstances, e.g.
2358  * when filtering XInput extension events on the root window.
2359  *
2360  * Since: 2.4
2361  **/
2362 void
2363 gdk_x11_register_standard_event_type (GdkDisplay *display,
2364                                       gint        event_base,
2365                                       gint        n_events)
2366 {
2367   GdkEventTypeX11 *event_type;
2368   GdkX11Display *display_x11;
2369
2370   display_x11 = GDK_X11_DISPLAY (display);
2371   event_type = g_new (GdkEventTypeX11, 1);
2372
2373   event_type->base = event_base;
2374   event_type->n_events = n_events;
2375
2376   display_x11->event_types = g_slist_prepend (display_x11->event_types, event_type);
2377 }
2378
2379 /* compare X sequence numbers handling wraparound */
2380 #define SEQUENCE_COMPARE(a,op,b) (((long) (a) - (long) (b)) op 0)
2381
2382 /* delivers an error event from the error handler in gdkmain-x11.c */
2383 void
2384 _gdk_x11_display_error_event (GdkDisplay  *display,
2385                               XErrorEvent *error)
2386 {
2387   GdkX11Display *display_x11;
2388   GSList *tmp_list;
2389   gboolean ignore;
2390
2391   display_x11 = GDK_X11_DISPLAY (display);
2392
2393   ignore = FALSE;
2394   for (tmp_list = display_x11->error_traps;
2395        tmp_list != NULL;
2396        tmp_list = tmp_list->next)
2397     {
2398       GdkErrorTrap *trap;
2399
2400       trap = tmp_list->data;
2401
2402       if (SEQUENCE_COMPARE (trap->start_sequence, <=, error->serial) &&
2403           (trap->end_sequence == 0 ||
2404            SEQUENCE_COMPARE (trap->end_sequence, >, error->serial)))
2405         {
2406           ignore = TRUE;
2407           trap->error_code = error->error_code;
2408           break; /* only innermost trap gets the error code */
2409         }
2410     }
2411
2412   if (!ignore)
2413     {
2414       gchar buf[64];
2415       gchar *msg;
2416
2417       XGetErrorText (display_x11->xdisplay, error->error_code, buf, 63);
2418
2419       msg =
2420         g_strdup_printf ("The program '%s' received an X Window System error.\n"
2421                          "This probably reflects a bug in the program.\n"
2422                          "The error was '%s'.\n"
2423                          "  (Details: serial %ld error_code %d request_code %d minor_code %d)\n"
2424                          "  (Note to programmers: normally, X errors are reported asynchronously;\n"
2425                          "   that is, you will receive the error a while after causing it.\n"
2426                          "   To debug your program, run it with the GDK_SYNCHRONIZE environment\n"
2427                          "   variable to change this behavior. You can then get a meaningful\n"
2428                          "   backtrace from your debugger if you break on the gdk_x_error() function.)",
2429                          g_get_prgname (),
2430                          buf,
2431                          error->serial,
2432                          error->error_code,
2433                          error->request_code,
2434                          error->minor_code);
2435
2436 #ifdef G_ENABLE_DEBUG
2437       g_error ("%s", msg);
2438 #else /* !G_ENABLE_DEBUG */
2439       g_warning ("%s\n", msg);
2440
2441       _exit (1);
2442 #endif /* G_ENABLE_DEBUG */
2443     }
2444 }
2445
2446 static void
2447 delete_outdated_error_traps (GdkX11Display *display_x11)
2448 {
2449   GSList *tmp_list;
2450   gulong processed_sequence;
2451
2452   processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
2453
2454   tmp_list = display_x11->error_traps;
2455   while (tmp_list != NULL)
2456     {
2457       GdkErrorTrap *trap = tmp_list->data;
2458
2459       if (trap->end_sequence != 0 &&
2460           SEQUENCE_COMPARE (trap->end_sequence, <=, processed_sequence))
2461         {
2462           GSList *free_me = tmp_list;
2463
2464           tmp_list = tmp_list->next;
2465           display_x11->error_traps =
2466             g_slist_delete_link (display_x11->error_traps, free_me);
2467           g_slice_free (GdkErrorTrap, trap);
2468         }
2469       else
2470         {
2471           tmp_list = tmp_list->next;
2472         }
2473     }
2474 }
2475
2476 /**
2477  * gdk_x11_display_error_trap_push:
2478  * @display: (type GdkX11Display): a #GdkDisplay
2479  *
2480  * Begins a range of X requests on @display for which X error events
2481  * will be ignored. Unignored errors (when no trap is pushed) will abort
2482  * the application. Use gdk_x11_display_error_trap_pop() or
2483  * gdk_x11_display_error_trap_pop_ignored()to lift a trap pushed
2484  * with this function.
2485  *
2486  * See also gdk_error_trap_push() to push a trap on all displays.
2487  *
2488  * Since: 3.0
2489  */
2490 void
2491 gdk_x11_display_error_trap_push (GdkDisplay *display)
2492 {
2493   GdkX11Display *display_x11;
2494   GdkErrorTrap *trap;
2495
2496   display_x11 = GDK_X11_DISPLAY (display);
2497
2498   delete_outdated_error_traps (display_x11);
2499
2500   /* set up the Xlib callback to tell us about errors */
2501   _gdk_x11_error_handler_push ();
2502
2503   trap = g_slice_new0 (GdkErrorTrap);
2504
2505   trap->start_sequence = XNextRequest (display_x11->xdisplay);
2506   trap->error_code = Success;
2507
2508   display_x11->error_traps =
2509     g_slist_prepend (display_x11->error_traps, trap);
2510 }
2511
2512 static gint
2513 gdk_x11_display_error_trap_pop_internal (GdkDisplay *display,
2514                                          gboolean    need_code)
2515 {
2516   GdkX11Display *display_x11;
2517   GdkErrorTrap *trap;
2518   GSList *tmp_list;
2519   int result;
2520
2521   display_x11 = GDK_X11_DISPLAY (display);
2522
2523   g_return_val_if_fail (display_x11->error_traps != NULL, Success);
2524
2525   /* Find the first trap that hasn't been popped already */
2526   trap = NULL; /* quiet gcc */
2527   for (tmp_list = display_x11->error_traps;
2528        tmp_list != NULL;
2529        tmp_list = tmp_list->next)
2530     {
2531       trap = tmp_list->data;
2532
2533       if (trap->end_sequence == 0)
2534         break;
2535     }
2536
2537   g_return_val_if_fail (trap != NULL, Success);
2538   g_assert (trap->end_sequence == 0);
2539
2540   /* May need to sync to fill in trap->error_code if we care about
2541    * getting an error code.
2542    */
2543   if (need_code)
2544     {
2545       gulong processed_sequence;
2546       gulong next_sequence;
2547
2548       next_sequence = XNextRequest (display_x11->xdisplay);
2549       processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
2550
2551       /* If our last request was already processed, there is no point
2552        * in syncing. i.e. if last request was a round trip (or even if
2553        * we got an event with the serial of a non-round-trip)
2554        */
2555       if ((next_sequence - 1) != processed_sequence)
2556         {
2557           XSync (display_x11->xdisplay, False);
2558         }
2559
2560       result = trap->error_code;
2561     }
2562   else
2563     {
2564       result = Success;
2565     }
2566
2567   /* record end of trap, giving us a range of
2568    * error sequences we'll ignore.
2569    */
2570   trap->end_sequence = XNextRequest (display_x11->xdisplay);
2571
2572   /* remove the Xlib callback */
2573   _gdk_x11_error_handler_pop ();
2574
2575   /* we may already be outdated */
2576   delete_outdated_error_traps (display_x11);
2577
2578   return result;
2579 }
2580
2581 /**
2582  * gdk_x11_display_error_trap_pop:
2583  * @display: (type GdkX11Display): the display
2584  *
2585  * Pops the error trap pushed by gdk_x11_display_error_trap_push().
2586  * Will XSync() if necessary and will always block until
2587  * the error is known to have occurred or not occurred,
2588  * so the error code can be returned.
2589  *
2590  * If you don't need to use the return value,
2591  * gdk_x11_display_error_trap_pop_ignored() would be more efficient.
2592  *
2593  * See gdk_error_trap_pop() for the all-displays-at-once
2594  * equivalent.
2595  *
2596  * Since: 3.0
2597  *
2598  * Return value: X error code or 0 on success
2599  */
2600 gint
2601 gdk_x11_display_error_trap_pop (GdkDisplay *display)
2602 {
2603   g_return_val_if_fail (GDK_IS_X11_DISPLAY (display), Success);
2604
2605   return gdk_x11_display_error_trap_pop_internal (display, TRUE);
2606 }
2607
2608 /**
2609  * gdk_x11_display_error_trap_pop_ignored:
2610  * @display: (type GdkX11Display): the display
2611  *
2612  * Pops the error trap pushed by gdk_x11_display_error_trap_push().
2613  * Does not block to see if an error occurred; merely records the
2614  * range of requests to ignore errors for, and ignores those errors
2615  * if they arrive asynchronously.
2616  *
2617  * See gdk_error_trap_pop_ignored() for the all-displays-at-once
2618  * equivalent.
2619  *
2620  * Since: 3.0
2621  */
2622 void
2623 gdk_x11_display_error_trap_pop_ignored (GdkDisplay *display)
2624 {
2625   g_return_if_fail (GDK_IS_X11_DISPLAY (display));
2626
2627   gdk_x11_display_error_trap_pop_internal (display, FALSE);
2628 }
2629
2630 /**
2631  * gdk_x11_set_sm_client_id:
2632  * @sm_client_id: the client id assigned by the session manager when the
2633  *    connection was opened, or %NULL to remove the property.
2634  *
2635  * Sets the <literal>SM_CLIENT_ID</literal> property on the application's leader window so that
2636  * the window manager can save the application's state using the X11R6 ICCCM
2637  * session management protocol.
2638  *
2639  * See the X Session Management Library documentation for more information on
2640  * session management and the Inter-Client Communication Conventions Manual
2641  *
2642  * Since: 2.24
2643  */
2644 void
2645 gdk_x11_set_sm_client_id (const gchar *sm_client_id)
2646 {
2647  GSList *displays, *l;
2648
2649   g_free (gdk_sm_client_id);
2650   gdk_sm_client_id = g_strdup (sm_client_id);
2651
2652   displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
2653   for (l = displays; l; l = l->next)
2654     set_sm_client_id (l->data, sm_client_id);
2655
2656   g_slist_free (displays);
2657 }
2658
2659 static void
2660 gdk_x11_display_event_data_copy (GdkDisplay    *display,
2661                                 const GdkEvent *src,
2662                                 GdkEvent       *dst)
2663 {
2664 }
2665
2666 static void
2667 gdk_x11_display_event_data_free (GdkDisplay *display,
2668                                  GdkEvent *event)
2669 {
2670 }
2671
2672 static gint
2673 pop_error_trap (GdkDisplay *display,
2674                 gboolean    ignored)
2675 {
2676   if (ignored)
2677     {
2678       gdk_x11_display_error_trap_pop_ignored (display);
2679       return Success;
2680     }
2681   else
2682     {
2683       return gdk_x11_display_error_trap_pop (display);
2684     }
2685 }
2686
2687 static GdkKeymap *
2688 gdk_x11_display_get_keymap (GdkDisplay *display)
2689 {
2690   GdkX11Display *display_x11;
2691   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
2692   display_x11 = GDK_X11_DISPLAY (display);
2693
2694   if (!display_x11->keymap)
2695     display_x11->keymap = g_object_new (GDK_TYPE_X11_KEYMAP, NULL);
2696
2697   display_x11->keymap->display = display;
2698
2699   return display_x11->keymap;
2700 }
2701
2702 static void
2703 gdk_x11_display_class_init (GdkX11DisplayClass * class)
2704 {
2705   GObjectClass *object_class = G_OBJECT_CLASS (class);
2706   GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
2707
2708   object_class->dispose = gdk_x11_display_dispose;
2709   object_class->finalize = gdk_x11_display_finalize;
2710
2711   display_class->window_type = GDK_TYPE_X11_WINDOW;
2712
2713   display_class->get_name = gdk_x11_display_get_name;
2714   display_class->get_n_screens = gdk_x11_display_get_n_screens;
2715   display_class->get_screen = gdk_x11_display_get_screen;
2716   display_class->get_default_screen = gdk_x11_display_get_default_screen;
2717   display_class->beep = gdk_x11_display_beep;
2718   display_class->sync = gdk_x11_display_sync;
2719   display_class->flush = gdk_x11_display_flush;
2720   display_class->has_pending = gdk_x11_display_has_pending;
2721   display_class->queue_events = _gdk_x11_display_queue_events;
2722   display_class->get_default_group = gdk_x11_display_get_default_group;
2723   display_class->supports_selection_notification = gdk_x11_display_supports_selection_notification;
2724   display_class->request_selection_notification = gdk_x11_display_request_selection_notification;
2725   display_class->supports_clipboard_persistence = gdk_x11_display_supports_clipboard_persistence;
2726   display_class->store_clipboard = gdk_x11_display_store_clipboard;
2727   display_class->supports_shapes = gdk_x11_display_supports_shapes;
2728   display_class->supports_input_shapes = gdk_x11_display_supports_input_shapes;
2729   display_class->supports_composite = gdk_x11_display_supports_composite;
2730   display_class->list_devices = gdk_x11_display_list_devices;
2731   display_class->get_app_launch_context = _gdk_x11_display_get_app_launch_context;
2732   display_class->get_cursor_for_type = _gdk_x11_display_get_cursor_for_type;
2733   display_class->get_cursor_for_name = _gdk_x11_display_get_cursor_for_name;
2734   display_class->get_cursor_for_pixbuf = _gdk_x11_display_get_cursor_for_pixbuf;
2735   display_class->get_default_cursor_size = _gdk_x11_display_get_default_cursor_size;
2736   display_class->get_maximal_cursor_size = _gdk_x11_display_get_maximal_cursor_size;
2737   display_class->supports_cursor_alpha = _gdk_x11_display_supports_cursor_alpha;
2738   display_class->supports_cursor_color = _gdk_x11_display_supports_cursor_color;
2739
2740   display_class->before_process_all_updates = _gdk_x11_display_before_process_all_updates;
2741   display_class->after_process_all_updates = _gdk_x11_display_after_process_all_updates;
2742   display_class->get_next_serial = gdk_x11_display_get_next_serial;
2743   display_class->notify_startup_complete = gdk_x11_display_notify_startup_complete;
2744   display_class->event_data_copy = gdk_x11_display_event_data_copy;
2745   display_class->event_data_free = gdk_x11_display_event_data_free;
2746   display_class->create_window_impl = _gdk_x11_display_create_window_impl;
2747   display_class->get_keymap = gdk_x11_display_get_keymap;
2748   display_class->push_error_trap = gdk_x11_display_error_trap_push;
2749   display_class->pop_error_trap = pop_error_trap;
2750   display_class->get_selection_owner = _gdk_x11_display_get_selection_owner;
2751   display_class->set_selection_owner = _gdk_x11_display_set_selection_owner;
2752   display_class->send_selection_notify = _gdk_x11_display_send_selection_notify;
2753   display_class->get_selection_property = _gdk_x11_display_get_selection_property;
2754   display_class->convert_selection = _gdk_x11_display_convert_selection;
2755   display_class->text_property_to_utf8_list = _gdk_x11_display_text_property_to_utf8_list;
2756   display_class->utf8_to_string_target = _gdk_x11_display_utf8_to_string_target;
2757 }