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           if (window_impl->toplevel &&
 685               window_impl->toplevel->frame_pending)
 686             {
 687               window_impl->toplevel->frame_pending = FALSE;
 688               gdk_frame_clock_thaw (gdk_window_get_frame_clock (event->any.window));
 689             }
 690
 691           if (toplevel)
 692             gdk_window_freeze_toplevel_updates_libgtk_only (window);
 693
 694           _gdk_x11_window_grab_check_unmap (window, xevent->xany.serial);
 695         }
 696
 697       break;
 698
 699     case MapNotify:
 700       GDK_NOTE (EVENTS,
 701                 g_message ("map notify:\t\twindow: %ld",
 702                            xevent->xmap.window));
 703
 704       event->any.type = GDK_MAP;
 705       event->any.window = window;
 706
 707       if (window && !is_substructure)
 708         {
 709           /* Unset iconified if it was set */
 710           if (window->state & GDK_WINDOW_STATE_ICONIFIED)
 711             gdk_synthesize_window_state (window,
 712                                          GDK_WINDOW_STATE_ICONIFIED,
 713                                          0);
 714
 715           if (toplevel)
 716             gdk_window_thaw_toplevel_updates_libgtk_only (window);
 717         }
 718
 719       break;
 720
 721     case ReparentNotify:
 722       GDK_NOTE (EVENTS,
 723                 g_message ("reparent notify:\twindow: %ld  x,y: %d %d  parent: %ld      ovr: %d",
 724                            xevent->xreparent.window,
 725                            xevent->xreparent.x,
 726                            xevent->xreparent.y,
 727                            xevent->xreparent.parent,
 728                            xevent->xreparent.override_redirect));
 729
 730       /* Not currently handled */
 731       return_val = FALSE;
 732       break;
 733
 734     case ConfigureNotify:
 735       GDK_NOTE (EVENTS,
 736                 g_message ("configure notify:\twindow: %ld  x,y: %d %d  w,h: %d %d  b-w: %d  above: %ld  ovr: %d%s",
 737                            xevent->xconfigure.window,
 738                            xevent->xconfigure.x,
 739                            xevent->xconfigure.y,
 740                            xevent->xconfigure.width,
 741                            xevent->xconfigure.height,
 742                            xevent->xconfigure.border_width,
 743                            xevent->xconfigure.above,
 744                            xevent->xconfigure.override_redirect,
 745                            !window
 746                            ? " (discarding)"
 747                            : window->window_type == GDK_WINDOW_CHILD
 748                            ? " (discarding child)"
 749                            : xevent->xconfigure.event != xevent->xconfigure.window
 750                            ? " (discarding substructure)"
 751                            : ""));
 752       if (window && GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
 753         {
 754           window->width = xevent->xconfigure.width;
 755           window->height = xevent->xconfigure.height;
 756
 757           _gdk_window_update_size (window);
 758           _gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl));
 759           _gdk_x11_screen_size_changed (screen, xevent);
 760         }
 761
 762 #ifdef HAVE_XSYNC
 763       if (!is_substructure && toplevel && display_x11->use_sync && toplevel->pending_counter_value != 0)
 764         {
 765           toplevel->configure_counter_value = toplevel->pending_counter_value;
 766           toplevel->pending_counter_value = 0;
 767         }
 768 #endif
 769
 770     if (!window ||
 771           xevent->xconfigure.event != xevent->xconfigure.window ||
 772           GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD ||
 773           GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
 774         return_val = FALSE;
 775       else
 776         {
 777           event->configure.type = GDK_CONFIGURE;
 778           event->configure.window = window;
 779           event->configure.width = xevent->xconfigure.width;
 780           event->configure.height = xevent->xconfigure.height;
 781
 782           if (!xevent->xconfigure.send_event &&
 783               !xevent->xconfigure.override_redirect &&
 784               !GDK_WINDOW_DESTROYED (window))
 785             {
 786               gint tx = 0;
 787               gint ty = 0;
 788               Window child_window = 0;
 789
 790               gdk_x11_display_error_trap_push (display);
 791               if (XTranslateCoordinates (GDK_WINDOW_XDISPLAY (window),
 792                                          GDK_WINDOW_XID (window),
 793                                          x11_screen->xroot_window,
 794                                          0, 0,
 795                                          &tx, &ty,
 796                                          &child_window))
 797                 {
 798                   event->configure.x = tx;
 799                   event->configure.y = ty;
 800                 }
 801               gdk_x11_display_error_trap_pop_ignored (display);
 802             }
 803           else
 804             {
 805               event->configure.x = xevent->xconfigure.x;
 806               event->configure.y = xevent->xconfigure.y;
 807             }
 808           if (!is_substructure)
 809             {
 810               window->x = event->configure.x;
 811               window->y = event->configure.y;
 812               window->width = xevent->xconfigure.width;
 813               window->height = xevent->xconfigure.height;
 814
 815               _gdk_window_update_size (window);
 816               _gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl));
 817
 818               if (window->resize_count >= 1)
 819                 {
 820                   window->resize_count -= 1;
 821
 822                   if (window->resize_count == 0)
 823                     _gdk_x11_moveresize_configure_done (display, window);
 824                 }
 825             }
 826         }
 827       break;
 828
 829     case PropertyNotify:
 830       GDK_NOTE (EVENTS,
 831                 g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s",
 832                            xevent->xproperty.window,
 833                            xevent->xproperty.atom,
 834                            "\"",
 835                            gdk_x11_get_xatom_name_for_display (display, xevent->xproperty.atom),
 836                            "\""));
 837
 838       if (window == NULL)
 839         {
 840           return_val = FALSE;
 841           break;
 842         }
 843
 844       /* We compare with the serial of the last time we mapped the
 845        * window to avoid refetching properties that we set ourselves
 846        */
 847       if (toplevel &&
 848           xevent->xproperty.serial >= toplevel->map_serial)
 849         {
 850           if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"))
 851             gdk_check_wm_state_changed (window);
 852
 853           if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"))
 854             gdk_check_wm_desktop_changed (window);
 855         }
 856
 857       if (window->event_mask & GDK_PROPERTY_CHANGE_MASK)
 858         {
 859           event->property.type = GDK_PROPERTY_NOTIFY;
 860           event->property.window = window;
 861           event->property.atom = gdk_x11_xatom_to_atom_for_display (display, xevent->xproperty.atom);
 862           event->property.time = xevent->xproperty.time;
 863           event->property.state = xevent->xproperty.state;
 864         }
 865       else
 866         return_val = FALSE;
 867
 868       break;
 869
 870     case SelectionClear:
 871       GDK_NOTE (EVENTS,
 872                 g_message ("selection clear:\twindow: %ld",
 873                            xevent->xproperty.window));
 874
 875       if (_gdk_x11_selection_filter_clear_event (&xevent->xselectionclear))
 876         {
 877           event->selection.type = GDK_SELECTION_CLEAR;
 878           event->selection.window = window;
 879           event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionclear.selection);
 880           event->selection.time = xevent->xselectionclear.time;
 881         }
 882       else
 883         return_val = FALSE;
 884
 885       break;
 886
 887     case SelectionRequest:
 888       GDK_NOTE (EVENTS,
 889                 g_message ("selection request:\twindow: %ld",
 890                            xevent->xproperty.window));
 891
 892       event->selection.type = GDK_SELECTION_REQUEST;
 893       event->selection.window = window;
 894       event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.selection);
 895       event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.target);
 896       event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.property);
 897       if (xevent->xselectionrequest.requestor != None)
 898         event->selection.requestor = gdk_x11_window_foreign_new_for_display (display,
 899                                                                              xevent->xselectionrequest.requestor);
 900       else
 901         event->selection.requestor = NULL;
 902       event->selection.time = xevent->xselectionrequest.time;
 903
 904       break;
 905
 906     case SelectionNotify:
 907       GDK_NOTE (EVENTS,
 908                 g_message ("selection notify:\twindow: %ld",
 909                            xevent->xproperty.window));
 910
 911       event->selection.type = GDK_SELECTION_NOTIFY;
 912       event->selection.window = window;
 913       event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.selection);
 914       event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.target);
 915       if (xevent->xselection.property == None)
 916         event->selection.property = GDK_NONE;
 917       else
 918         event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.property);
 919       event->selection.time = xevent->xselection.time;
 920
 921       break;
 922
 923     case ColormapNotify:
 924       GDK_NOTE (EVENTS,
 925                 g_message ("colormap notify:\twindow: %ld",
 926                            xevent->xcolormap.window));
 927
 928       /* Not currently handled */
 929       return_val = FALSE;
 930       break;
 931
 932     case ClientMessage:
 933       GDK_NOTE (EVENTS,
 934                 g_message ("client message:\twindow: %ld",
 935                            xevent->xclient.window));
 936
 937       /* Not currently handled */
 938       return_val = FALSE;
 939       break;
 940
 941     case MappingNotify:
 942       GDK_NOTE (EVENTS,
 943                 g_message ("mapping notify"));
 944
 945       /* Let XLib know that there is a new keyboard mapping.
 946        */
 947       XRefreshKeyboardMapping (&xevent->xmapping);
 948       _gdk_x11_keymap_keys_changed (display);
 949       return_val = FALSE;
 950       break;
 951
 952     default:
 953 #ifdef HAVE_XFIXES
 954       if (xevent->type - display_x11->xfixes_event_base == XFixesSelectionNotify)
 955         {
 956           XFixesSelectionNotifyEvent *selection_notify = (XFixesSelectionNotifyEvent *)xevent;
 957
 958           _gdk_x11_screen_process_owner_change (screen, xevent);
 959
 960           event->owner_change.type = GDK_OWNER_CHANGE;
 961           event->owner_change.window = window;
 962           if (selection_notify->owner != None)
 963             event->owner_change.owner = gdk_x11_window_foreign_new_for_display (display,
 964                                                                                 selection_notify->owner);
 965           else
 966             event->owner_change.owner = NULL;
 967           event->owner_change.reason = selection_notify->subtype;
 968           event->owner_change.selection =
 969             gdk_x11_xatom_to_atom_for_display (display,
 970                                                selection_notify->selection);
 971           event->owner_change.time = selection_notify->timestamp;
 972           event->owner_change.selection_time = selection_notify->selection_timestamp;
 973
 974           return_val = TRUE;
 975         }
 976       else
 977 #endif
 978 #ifdef HAVE_RANDR
 979       if (xevent->type - display_x11->xrandr_event_base == RRScreenChangeNotify ||
 980           xevent->type - display_x11->xrandr_event_base == RRNotify)
 981         {
 982           if (screen)
 983             _gdk_x11_screen_size_changed (screen, xevent);
 984         }
 985       else
 986 #endif
 987 #if defined(HAVE_XCOMPOSITE) && defined (HAVE_XDAMAGE) && defined (HAVE_XFIXES)
 988       if (display_x11->have_xdamage && window && window->composited &&
 989           xevent->type == display_x11->xdamage_event_base + XDamageNotify &&
 990           ((XDamageNotifyEvent *) xevent)->damage == window_impl->damage)
 991         {
 992           XDamageNotifyEvent *damage_event = (XDamageNotifyEvent *) xevent;
 993           XserverRegion repair;
 994           GdkRectangle rect;
 995
 996           rect.x = window->x + damage_event->area.x;
 997           rect.y = window->y + damage_event->area.y;
 998           rect.width = damage_event->area.width;
 999           rect.height = damage_event->area.height;
1000
1001           repair = XFixesCreateRegion (display_x11->xdisplay,
1002                                        &damage_event->area, 1);
1003           XDamageSubtract (display_x11->xdisplay,
1004                            window_impl->damage,
1005                            repair, None);
1006           XFixesDestroyRegion (display_x11->xdisplay, repair);
1007
1008           if (window->parent != NULL)
1009            _gdk_x11_window_process_expose (window->parent,
1010                                            damage_event->serial, &rect);
1011
1012           return_val = TRUE;
1013         }
1014       else
1015 #endif
1016 #ifdef HAVE_XKB
1017       if (xevent->type == display_x11->xkb_event_type)
1018         {
1019           XkbEvent *xkb_event = (XkbEvent *) xevent;
1020
1021           switch (xkb_event->any.xkb_type)
1022             {
1023             case XkbNewKeyboardNotify:
1024             case XkbMapNotify:
1025               _gdk_x11_keymap_keys_changed (display);
1026
1027               return_val = FALSE;
1028               break;
1029
1030             case XkbStateNotify:
1031               _gdk_x11_keymap_state_changed (display, xevent);
1032               break;
1033             }
1034         }
1035       else
1036 #endif
1037         return_val = FALSE;
1038     }
1039
1040  done:
1041   if (return_val)
1042     {
1043       if (event->any.window)
1044         g_object_ref (event->any.window);
1045     }
1046   else
1047     {
1048       /* Mark this event as having no resources to be freed */
1049       event->any.window = NULL;
1050       event->any.type = GDK_NOTHING;
1051     }
1052
1053   if (window)
1054     g_object_unref (window);
1055
1056   return return_val;
1057 }
1058
1059 GdkFilterReturn
1060 _gdk_wm_protocols_filter (GdkXEvent *xev,
1061                           GdkEvent  *event,
1062                           gpointer   data)
1063 {
1064   XEvent *xevent = (XEvent *)xev;
1065   GdkWindow *win = event->any.window;
1066   GdkDisplay *display;
1067   Atom atom;
1068
1069   if (!GDK_IS_X11_WINDOW (win))
1070     return GDK_FILTER_CONTINUE;
1071
1072   if (xevent->type != ClientMessage)
1073     return GDK_FILTER_CONTINUE;
1074
1075   display = GDK_WINDOW_DISPLAY (win);
1076
1077   if (xevent->xclient.message_type != gdk_x11_get_xatom_by_name_for_display (display, "WM_PROTOCOLS"))
1078     return GDK_FILTER_CONTINUE;
1079
1080   atom = (Atom) xevent->xclient.data.l[0];
1081
1082   if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW"))
1083     {
1084   /* The delete window request specifies a window
1085    *  to delete. We don't actually destroy the
1086    *  window because "it is only a request". (The
1087    *  window might contain vital data that the
1088    *  program does not want destroyed). Instead
1089    *  the event is passed along to the program,
1090    *  which should then destroy the window.
1091    */
1092       GDK_NOTE (EVENTS,
1093                 g_message ("delete window:\t\twindow: %ld",
1094                            xevent->xclient.window));
1095
1096       event->any.type = GDK_DELETE;
1097
1098       gdk_x11_window_set_user_time (win, xevent->xclient.data.l[1]);
1099
1100       return GDK_FILTER_TRANSLATE;
1101     }
1102   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_TAKE_FOCUS"))
1103     {
1104       GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
1105
1106       /* There is no way of knowing reliably whether we are viewable;
1107        * so trap errors asynchronously around the XSetInputFocus call
1108        */
1109       if (toplevel && win->accept_focus)
1110         {
1111           gdk_x11_display_error_trap_push (display);
1112           XSetInputFocus (GDK_DISPLAY_XDISPLAY (display),
1113                           toplevel->focus_window,
1114                           RevertToParent,
1115                           xevent->xclient.data.l[1]);
1116           gdk_x11_display_error_trap_pop_ignored (display);
1117        }
1118
1119       return GDK_FILTER_REMOVE;
1120     }
1121   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING") &&
1122            !_gdk_x11_display_is_root_window (display,
1123                                              xevent->xclient.window))
1124     {
1125       XClientMessageEvent xclient = xevent->xclient;
1126
1127       xclient.window = GDK_WINDOW_XROOTWIN (win);
1128       XSendEvent (GDK_WINDOW_XDISPLAY (win),
1129                   xclient.window,
1130                   False,
1131                   SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xclient);
1132
1133       return GDK_FILTER_REMOVE;
1134     }
1135   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_SYNC_REQUEST") &&
1136            GDK_X11_DISPLAY (display)->use_sync)
1137     {
1138       GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
1139       if (toplevel)
1140         {
1141 #ifdef HAVE_XSYNC
1142           toplevel->pending_counter_value = xevent->xclient.data.l[2] + ((gint64)xevent->xclient.data.l[3] << 32);
1143 #endif
1144         }
1145       return GDK_FILTER_REMOVE;
1146     }
1147
1148   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_FRAME_DRAWN"))
1149     {
1150       GdkWindowImplX11 *window_impl;
1151
1152       window_impl = GDK_WINDOW_IMPL_X11 (event->any.window->impl);
1153       if (window_impl->toplevel &&
1154           window_impl->toplevel->frame_pending)
1155         {
1156           window_impl->toplevel->frame_pending = FALSE;
1157           gdk_frame_clock_thaw (gdk_window_get_frame_clock (event->any.window));
1158         }
1159
1160       return GDK_FILTER_REMOVE;
1161     }
1162
1163   return GDK_FILTER_CONTINUE;
1164 }
1165
1166 static void
1167 gdk_event_init (GdkDisplay *display)
1168 {
1169   GdkX11Display *display_x11;
1170   GdkDeviceManager *device_manager;
1171
1172   display_x11 = GDK_X11_DISPLAY (display);
1173   display_x11->event_source = gdk_x11_event_source_new (display);
1174
1175   gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
1176                                        GDK_EVENT_TRANSLATOR (display));
1177
1178   device_manager = gdk_display_get_device_manager (display);
1179   gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
1180                                         GDK_EVENT_TRANSLATOR (device_manager));
1181 }
1182
1183 static void
1184 gdk_x11_display_init_input (GdkDisplay *display)
1185 {
1186   GdkX11Display *display_x11;
1187   GdkDeviceManager *device_manager;
1188   GdkDevice *device;
1189   GList *list, *l;
1190
1191   display_x11 = GDK_X11_DISPLAY (display);
1192   device_manager = gdk_display_get_device_manager (display);
1193
1194   /* For backwards compatibility, just add
1195    * floating devices that are not keyboards.
1196    */
1197   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING);
1198
1199   for (l = list; l; l = l->next)
1200     {
1201       device = l->data;
1202
1203       if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
1204         continue;
1205
1206       display_x11->input_devices = g_list_prepend (display_x11->input_devices,
1207                                                    g_object_ref (l->data));
1208     }
1209
1210   g_list_free (list);
1211
1212   /* Now set "core" pointer to the first
1213    * master device that is a pointer.
1214    */
1215   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
1216
1217   for (l = list; l; l = l->next)
1218     {
1219       device = l->data;
1220
1221       if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE)
1222         continue;
1223
1224       display->core_pointer = device;
1225       break;
1226     }
1227
1228   /* Add the core pointer to the devices list */
1229   display_x11->input_devices = g_list_prepend (display_x11->input_devices,
1230                                                g_object_ref (display->core_pointer));
1231
1232   g_list_free (list);
1233 }
1234
1235 static void
1236 set_sm_client_id (GdkDisplay  *display,
1237                   const gchar *sm_client_id)
1238 {
1239   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1240
1241   if (gdk_display_is_closed (display))
1242     return;
1243
1244   if (sm_client_id && strcmp (sm_client_id, ""))
1245     XChangeProperty (display_x11->xdisplay, display_x11->leader_window,
1246                      gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"),
1247                      XA_STRING, 8, PropModeReplace, (guchar *)sm_client_id,
1248                      strlen (sm_client_id));
1249   else
1250     XDeleteProperty (display_x11->xdisplay, display_x11->leader_window,
1251                      gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"));
1252 }
1253
1254 GdkDisplay *
1255 _gdk_x11_display_open (const gchar *display_name)
1256 {
1257   Display *xdisplay;
1258   GdkDisplay *display;
1259   GdkX11Display *display_x11;
1260   GdkWindowAttr attr;
1261   gint argc;
1262   gchar *argv[1];
1263
1264   XClassHint *class_hint;
1265   gulong pid;
1266   gint i;
1267   gint ignore;
1268   gint maj, min;
1269
1270   xdisplay = XOpenDisplay (display_name);
1271   if (!xdisplay)
1272     return NULL;
1273
1274   display = g_object_new (GDK_TYPE_X11_DISPLAY, NULL);
1275   display_x11 = GDK_X11_DISPLAY (display);
1276
1277   display_x11->xdisplay = xdisplay;
1278
1279   /* Set up handlers for Xlib internal connections */
1280   XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
1281
1282   _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
1283
1284   /* RandR must be initialized before we initialize the screens */
1285   display_x11->have_randr12 = FALSE;
1286   display_x11->have_randr13 = FALSE;
1287 #ifdef HAVE_RANDR
1288   if (XRRQueryExtension (display_x11->xdisplay,
1289                          &display_x11->xrandr_event_base, &ignore))
1290   {
1291       int major, minor;
1292
1293       XRRQueryVersion (display_x11->xdisplay, &major, &minor);
1294
1295       if ((major == 1 && minor >= 2) || major > 1) {
1296           display_x11->have_randr12 = TRUE;
1297           if (minor >= 3 || major > 1)
1298               display_x11->have_randr13 = TRUE;
1299       }
1300
1301        gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents);
1302   }
1303 #endif
1304
1305   /* initialize the display's screens */
1306   display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
1307   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1308     display_x11->screens[i] = _gdk_x11_screen_new (display, i);
1309
1310   /* We need to initialize events after we have the screen
1311    * structures in places
1312    */
1313   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1314     _gdk_x11_screen_init_events (display_x11->screens[i]);
1315
1316   /*set the default screen */
1317   display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
1318
1319   display->device_manager = _gdk_x11_device_manager_new (display);
1320
1321   gdk_event_init (display);
1322
1323   attr.window_type = GDK_WINDOW_TOPLEVEL;
1324   attr.wclass = GDK_INPUT_OUTPUT;
1325   attr.x = 10;
1326   attr.y = 10;
1327   attr.width = 10;
1328   attr.height = 10;
1329   attr.event_mask = 0;
1330
1331   display_x11->leader_gdk_window = gdk_window_new (GDK_X11_SCREEN (display_x11->default_screen)->root_window,
1332                                                    &attr, GDK_WA_X | GDK_WA_Y);
1333   (_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
1334
1335   display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
1336
1337   display_x11->leader_window_title_set = FALSE;
1338
1339 #ifdef HAVE_XFIXES
1340   if (XFixesQueryExtension (display_x11->xdisplay,
1341                             &display_x11->xfixes_event_base,
1342                             &ignore))
1343     {
1344       display_x11->have_xfixes = TRUE;
1345
1346       gdk_x11_register_standard_event_type (display,
1347                                             display_x11->xfixes_event_base,
1348                                             XFixesNumberEvents);
1349     }
1350   else
1351 #endif
1352     display_x11->have_xfixes = FALSE;
1353
1354 #ifdef HAVE_XCOMPOSITE
1355   if (XCompositeQueryExtension (display_x11->xdisplay,
1356                                 &ignore, &ignore))
1357     {
1358       int major, minor;
1359
1360       XCompositeQueryVersion (display_x11->xdisplay, &major, &minor);
1361
1362       /* Prior to Composite version 0.4, composited windows clipped their
1363        * parents, so you had to use IncludeInferiors to draw to the parent
1364        * This isn't useful for our purposes, so require 0.4
1365        */
1366       display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4);
1367     }
1368   else
1369 #endif
1370     display_x11->have_xcomposite = FALSE;
1371
1372 #ifdef HAVE_XDAMAGE
1373   if (XDamageQueryExtension (display_x11->xdisplay,
1374                              &display_x11->xdamage_event_base,
1375                              &ignore))
1376     {
1377       display_x11->have_xdamage = TRUE;
1378
1379       gdk_x11_register_standard_event_type (display,
1380                                             display_x11->xdamage_event_base,
1381                                             XDamageNumberEvents);
1382     }
1383   else
1384 #endif
1385     display_x11->have_xdamage = FALSE;
1386
1387   display_x11->have_shapes = FALSE;
1388   display_x11->have_input_shapes = FALSE;
1389
1390   if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &display_x11->shape_event_base, &ignore))
1391     {
1392       display_x11->have_shapes = TRUE;
1393 #ifdef ShapeInput
1394       if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min))
1395         display_x11->have_input_shapes = (maj == 1 && min >= 1);
1396 #endif
1397     }
1398
1399   display_x11->trusted_client = TRUE;
1400   {
1401     Window root, child;
1402     int rootx, rooty, winx, winy;
1403     unsigned int xmask;
1404
1405     gdk_x11_display_error_trap_push (display);
1406     XQueryPointer (display_x11->xdisplay,
1407                    GDK_X11_SCREEN (display_x11->default_screen)->xroot_window,
1408                    &root, &child, &rootx, &rooty, &winx, &winy, &xmask);
1409     if (G_UNLIKELY (gdk_x11_display_error_trap_pop (display) == BadWindow))
1410       {
1411         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));
1412         display_x11->trusted_client = FALSE;
1413       }
1414   }
1415
1416   if (g_getenv ("GDK_SYNCHRONIZE"))
1417     XSynchronize (display_x11->xdisplay, True);
1418
1419   class_hint = XAllocClassHint();
1420   class_hint->res_name = (char *) g_get_prgname ();
1421   class_hint->res_class = (char *)gdk_get_program_class ();
1422
1423   /* XmbSetWMProperties sets the RESOURCE_NAME environment variable
1424    * from argv[0], so we just synthesize an argument array here.
1425    */
1426   argc = 1;
1427   argv[0] = (char *) g_get_prgname ();
1428
1429   XmbSetWMProperties (display_x11->xdisplay,
1430                       display_x11->leader_window,
1431                       NULL, NULL, argv, argc, NULL, NULL,
1432                       class_hint);
1433   XFree (class_hint);
1434
1435   if (gdk_sm_client_id)
1436     set_sm_client_id (display, gdk_sm_client_id);
1437
1438   pid = getpid ();
1439   XChangeProperty (display_x11->xdisplay,
1440                    display_x11->leader_window,
1441                    gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
1442                    XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
1443
1444   /* We don't yet know a valid time. */
1445   display_x11->user_time = 0;
1446
1447 #ifdef HAVE_XKB
1448   {
1449     gint xkb_major = XkbMajorVersion;
1450     gint xkb_minor = XkbMinorVersion;
1451     if (XkbLibraryVersion (&xkb_major, &xkb_minor))
1452       {
1453         xkb_major = XkbMajorVersion;
1454         xkb_minor = XkbMinorVersion;
1455
1456         if (XkbQueryExtension (display_x11->xdisplay,
1457                                NULL, &display_x11->xkb_event_type, NULL,
1458                                &xkb_major, &xkb_minor))
1459           {
1460             Bool detectable_autorepeat_supported;
1461
1462             display_x11->use_xkb = TRUE;
1463
1464             XkbSelectEvents (display_x11->xdisplay,
1465                              XkbUseCoreKbd,
1466                              XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
1467                              XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
1468
1469             /* keep this in sync with _gdk_x11_keymap_state_changed() */
1470             XkbSelectEventDetails (display_x11->xdisplay,
1471                                    XkbUseCoreKbd, XkbStateNotify,
1472                                    XkbAllStateComponentsMask,
1473                                    XkbModifierStateMask|XkbGroupStateMask);
1474
1475             XkbSetDetectableAutoRepeat (display_x11->xdisplay,
1476                                         True,
1477                                         &detectable_autorepeat_supported);
1478
1479             GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
1480                                        detectable_autorepeat_supported ?
1481                                        "supported" : "not supported"));
1482
1483             display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
1484           }
1485       }
1486   }
1487 #endif
1488
1489   display_x11->use_sync = FALSE;
1490 #ifdef HAVE_XSYNC
1491   {
1492     int major, minor;
1493     int error_base, event_base;
1494
1495     if (XSyncQueryExtension (display_x11->xdisplay,
1496                              &event_base, &error_base) &&
1497         XSyncInitialize (display_x11->xdisplay,
1498                          &major, &minor))
1499       display_x11->use_sync = TRUE;
1500   }
1501 #endif
1502
1503   gdk_x11_display_init_input (display);
1504
1505   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1506     _gdk_x11_screen_setup (display_x11->screens[i]);
1507
1508   g_signal_emit_by_name (display, "opened");
1509
1510   return display;
1511 }
1512
1513 /*
1514  * XLib internal connection handling
1515  */
1516 typedef struct _GdkInternalConnection GdkInternalConnection;
1517
1518 struct _GdkInternalConnection
1519 {
1520   gint           fd;
1521   GSource       *source;
1522   Display       *display;
1523 };
1524
1525 static gboolean
1526 process_internal_connection (GIOChannel  *gioc,
1527                              GIOCondition cond,
1528                              gpointer     data)
1529 {
1530   GdkInternalConnection *connection = (GdkInternalConnection *)data;
1531
1532   gdk_threads_enter ();
1533
1534   XProcessInternalConnection ((Display*)connection->display, connection->fd);
1535
1536   gdk_threads_leave ();
1537
1538   return TRUE;
1539 }
1540
1541 static gulong
1542 gdk_x11_display_get_next_serial (GdkDisplay *display)
1543 {
1544   return NextRequest (GDK_DISPLAY_XDISPLAY (display));
1545 }
1546
1547
1548 static GdkInternalConnection *
1549 gdk_add_connection_handler (Display *display,
1550                             guint    fd)
1551 {
1552   GIOChannel *io_channel;
1553   GdkInternalConnection *connection;
1554
1555   connection = g_new (GdkInternalConnection, 1);
1556
1557   connection->fd = fd;
1558   connection->display = display;
1559
1560   io_channel = g_io_channel_unix_new (fd);
1561
1562   connection->source = g_io_create_watch (io_channel, G_IO_IN);
1563   g_source_set_callback (connection->source,
1564                          (GSourceFunc)process_internal_connection, connection, NULL);
1565   g_source_attach (connection->source, NULL);
1566
1567   g_io_channel_unref (io_channel);
1568
1569   return connection;
1570 }
1571
1572 static void
1573 gdk_remove_connection_handler (GdkInternalConnection *connection)
1574 {
1575   g_source_destroy (connection->source);
1576   g_free (connection);
1577 }
1578
1579 static void
1580 gdk_internal_connection_watch (Display  *display,
1581                                XPointer  arg,
1582                                gint      fd,
1583                                gboolean  opening,
1584                                XPointer *watch_data)
1585 {
1586   if (opening)
1587     *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
1588   else
1589     gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
1590 }
1591
1592 static const gchar *
1593 gdk_x11_display_get_name (GdkDisplay *display)
1594 {
1595   return (gchar *) DisplayString (GDK_X11_DISPLAY (display)->xdisplay);
1596 }
1597
1598 static gint
1599 gdk_x11_display_get_n_screens (GdkDisplay *display)
1600 {
1601   return ScreenCount (GDK_X11_DISPLAY (display)->xdisplay);
1602 }
1603
1604 static GdkScreen *
1605 gdk_x11_display_get_screen (GdkDisplay *display,
1606                             gint        screen_num)
1607 {
1608   g_return_val_if_fail (ScreenCount (GDK_X11_DISPLAY (display)->xdisplay) > screen_num, NULL);
1609
1610   return GDK_X11_DISPLAY (display)->screens[screen_num];
1611 }
1612
1613 static GdkScreen *
1614 gdk_x11_display_get_default_screen (GdkDisplay *display)
1615 {
1616   return GDK_X11_DISPLAY (display)->default_screen;
1617 }
1618
1619 gboolean
1620 _gdk_x11_display_is_root_window (GdkDisplay *display,
1621                                  Window      xroot_window)
1622 {
1623   GdkX11Display *display_x11;
1624   gint i;
1625
1626   display_x11 = GDK_X11_DISPLAY (display);
1627
1628   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1629     {
1630       if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
1631         return TRUE;
1632     }
1633   return FALSE;
1634 }
1635
1636 struct XPointerUngrabInfo {
1637   GdkDisplay *display;
1638   guint32 time;
1639 };
1640
1641 static void
1642 device_grab_update_callback (GdkDisplay *display,
1643                              gpointer    data,
1644                              gulong      serial)
1645 {
1646   GdkPointerWindowInfo *pointer_info;
1647   GdkDevice *device = data;
1648
1649   pointer_info = _gdk_display_get_pointer_info (display, device);
1650   _gdk_display_device_grab_update (display, device,
1651                                    pointer_info->last_slave, serial);
1652 }
1653
1654 #define XSERVER_TIME_IS_LATER(time1, time2)                        \
1655   ( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) ||  \
1656     (( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 ))     \
1657   )
1658
1659 void
1660 _gdk_x11_display_update_grab_info (GdkDisplay *display,
1661                                    GdkDevice  *device,
1662                                    gint        status)
1663 {
1664   if (status == GrabSuccess)
1665     _gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
1666 }
1667
1668 void
1669 _gdk_x11_display_update_grab_info_ungrab (GdkDisplay *display,
1670                                           GdkDevice  *device,
1671                                           guint32     time,
1672                                           gulong      serial)
1673 {
1674   GdkDeviceGrabInfo *grab;
1675
1676   XFlush (GDK_DISPLAY_XDISPLAY (display));
1677
1678   grab = _gdk_display_get_last_device_grab (display, device);
1679   if (grab &&
1680       (time == GDK_CURRENT_TIME ||
1681        grab->time == GDK_CURRENT_TIME ||
1682        !XSERVER_TIME_IS_LATER (grab->time, time)))
1683     {
1684       grab->serial_end = serial;
1685       _gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
1686     }
1687 }
1688
1689 static void
1690 gdk_x11_display_beep (GdkDisplay *display)
1691 {
1692 #ifdef HAVE_XKB
1693   XkbBell (GDK_DISPLAY_XDISPLAY (display), None, 0, None);
1694 #else
1695   XBell (GDK_DISPLAY_XDISPLAY (display), 0);
1696 #endif
1697 }
1698
1699 static void
1700 gdk_x11_display_sync (GdkDisplay *display)
1701 {
1702   XSync (GDK_DISPLAY_XDISPLAY (display), False);
1703 }
1704
1705 static void
1706 gdk_x11_display_flush (GdkDisplay *display)
1707 {
1708   if (!display->closed)
1709     XFlush (GDK_DISPLAY_XDISPLAY (display));
1710 }
1711
1712 static gboolean
1713 gdk_x11_display_has_pending (GdkDisplay *display)
1714 {
1715   return XPending (GDK_DISPLAY_XDISPLAY (display));
1716 }
1717
1718 static GdkWindow *
1719 gdk_x11_display_get_default_group (GdkDisplay *display)
1720 {
1721   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1722
1723   return GDK_X11_DISPLAY (display)->leader_gdk_window;
1724 }
1725
1726 /**
1727  * gdk_x11_display_grab:
1728  * @display: (type GdkX11Display): a #GdkDisplay
1729  *
1730  * Call XGrabServer() on @display.
1731  * To ungrab the display again, use gdk_x11_display_ungrab().
1732  *
1733  * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
1734  *
1735  * Since: 2.2
1736  **/
1737 void
1738 gdk_x11_display_grab (GdkDisplay *display)
1739 {
1740   GdkX11Display *display_x11;
1741
1742   g_return_if_fail (GDK_IS_DISPLAY (display));
1743
1744   display_x11 = GDK_X11_DISPLAY (display);
1745
1746   if (display_x11->grab_count == 0)
1747     XGrabServer (display_x11->xdisplay);
1748   display_x11->grab_count++;
1749 }
1750
1751 /**
1752  * gdk_x11_display_ungrab:
1753  * @display: (type GdkX11Display): a #GdkDisplay
1754  *
1755  * Ungrab @display after it has been grabbed with
1756  * gdk_x11_display_grab().
1757  *
1758  * Since: 2.2
1759  **/
1760 void
1761 gdk_x11_display_ungrab (GdkDisplay *display)
1762 {
1763   GdkX11Display *display_x11;
1764
1765   g_return_if_fail (GDK_IS_DISPLAY (display));
1766
1767   display_x11 = GDK_X11_DISPLAY (display);;
1768   g_return_if_fail (display_x11->grab_count > 0);
1769
1770   display_x11->grab_count--;
1771   if (display_x11->grab_count == 0)
1772     {
1773       XUngrabServer (display_x11->xdisplay);
1774       XFlush (display_x11->xdisplay);
1775     }
1776 }
1777
1778 static void
1779 gdk_x11_display_dispose (GObject *object)
1780 {
1781   GdkDisplay *display = GDK_DISPLAY (object);
1782   GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
1783   gint           i;
1784
1785   _gdk_x11_display_manager_remove_display (gdk_display_manager_get (), display);
1786
1787   g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL);
1788
1789   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1790     _gdk_screen_close (display_x11->screens[i]);
1791
1792   if (display_x11->event_source)
1793     {
1794       g_source_destroy (display_x11->event_source);
1795       g_source_unref (display_x11->event_source);
1796       display_x11->event_source = NULL;
1797     }
1798
1799   G_OBJECT_CLASS (gdk_x11_display_parent_class)->dispose (object);
1800 }
1801
1802 static void
1803 gdk_x11_display_finalize (GObject *object)
1804 {
1805   GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
1806   gint           i;
1807
1808   /* Keymap */
1809   if (display_x11->keymap)
1810     g_object_unref (display_x11->keymap);
1811
1812   /* Free motif Dnd */
1813   if (display_x11->motif_target_lists)
1814     {
1815       for (i = 0; i < display_x11->motif_n_target_lists; i++)
1816         g_list_free (display_x11->motif_target_lists[i]);
1817       g_free (display_x11->motif_target_lists);
1818     }
1819
1820   _gdk_x11_cursor_display_finalize (GDK_DISPLAY (display_x11));
1821
1822   /* Empty the event queue */
1823   _gdk_x11_display_free_translate_queue (GDK_DISPLAY (display_x11));
1824
1825   /* Atom Hashtable */
1826   g_hash_table_destroy (display_x11->atom_from_virtual);
1827   g_hash_table_destroy (display_x11->atom_to_virtual);
1828
1829   /* Leader Window */
1830   XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
1831
1832   /* List of event window extraction functions */
1833   g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
1834   g_slist_free (display_x11->event_types);
1835
1836   /* input GdkDevice list */
1837   g_list_free_full (display_x11->input_devices, g_object_unref);
1838
1839   /* input GdkWindow list */
1840   g_list_free_full (display_x11->input_windows, g_free);
1841
1842   /* Free all GdkScreens */
1843   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1844     g_object_unref (display_x11->screens[i]);
1845   g_free (display_x11->screens);
1846
1847   g_free (display_x11->startup_notification_id);
1848
1849   /* X ID hashtable */
1850   g_hash_table_destroy (display_x11->xid_ht);
1851
1852   XCloseDisplay (display_x11->xdisplay);
1853
1854   /* error traps */
1855   while (display_x11->error_traps != NULL)
1856     {
1857       GdkErrorTrap *trap = display_x11->error_traps->data;
1858
1859       display_x11->error_traps =
1860         g_slist_delete_link (display_x11->error_traps,
1861                              display_x11->error_traps);
1862
1863       if (trap->end_sequence == 0)
1864         g_warning ("Display finalized with an unpopped error trap");
1865
1866       g_slice_free (GdkErrorTrap, trap);
1867     }
1868
1869   G_OBJECT_CLASS (gdk_x11_display_parent_class)->finalize (object);
1870 }
1871
1872 /**
1873  * gdk_x11_lookup_xdisplay:
1874  * @xdisplay: a pointer to an X Display
1875  *
1876  * Find the #GdkDisplay corresponding to @display, if any exists.
1877  *
1878  * Return value: (transfer none): the #GdkDisplay, if found, otherwise %NULL.
1879  *
1880  * Since: 2.2
1881  **/
1882 GdkDisplay *
1883 gdk_x11_lookup_xdisplay (Display *xdisplay)
1884 {
1885   GSList *list, *l;
1886   GdkDisplay *display;
1887
1888   display = NULL;
1889
1890   list = gdk_display_manager_list_displays (gdk_display_manager_get ());
1891
1892   for (l = list; l; l = l->next)
1893     {
1894       if (GDK_DISPLAY_XDISPLAY (l->data) == xdisplay)
1895         {
1896           display = l->data;
1897           break;
1898         }
1899     }
1900
1901   g_slist_free (list);
1902
1903   return display;
1904 }
1905
1906 /**
1907  * _gdk_x11_display_screen_for_xrootwin:
1908  * @display: a #GdkDisplay
1909  * @xrootwin: window ID for one of of the screen's of the display.
1910  *
1911  * Given the root window ID of one of the screen's of a #GdkDisplay,
1912  * finds the screen.
1913  *
1914  * Return value: (transfer none): the #GdkScreen corresponding to
1915  *     @xrootwin, or %NULL.
1916  **/
1917 GdkScreen *
1918 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
1919                                       Window      xrootwin)
1920 {
1921   gint i;
1922
1923   for (i = 0; i < ScreenCount (GDK_X11_DISPLAY (display)->xdisplay); i++)
1924     {
1925       GdkScreen *screen = gdk_display_get_screen (display, i);
1926       if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
1927         return screen;
1928     }
1929
1930   return NULL;
1931 }
1932
1933 /**
1934  * gdk_x11_display_get_xdisplay:
1935  * @display: (type GdkX11Display): a #GdkDisplay
1936  *
1937  * Returns the X display of a #GdkDisplay.
1938  *
1939  * Returns: (transfer none): an X display
1940  *
1941  * Since: 2.2
1942  */
1943 Display *
1944 gdk_x11_display_get_xdisplay (GdkDisplay *display)
1945 {
1946   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1947   return GDK_X11_DISPLAY (display)->xdisplay;
1948 }
1949
1950 void
1951 _gdk_x11_display_make_default (GdkDisplay *display)
1952 {
1953   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1954   const gchar *startup_id;
1955
1956   g_free (display_x11->startup_notification_id);
1957   display_x11->startup_notification_id = NULL;
1958
1959   startup_id = g_getenv ("DESKTOP_STARTUP_ID");
1960   if (startup_id && *startup_id != '\0')
1961     {
1962       if (!g_utf8_validate (startup_id, -1, NULL))
1963         g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
1964       else
1965         gdk_x11_display_set_startup_notification_id (display, startup_id);
1966
1967       /* Clear the environment variable so it won't be inherited by
1968        * child processes and confuse things.
1969        */
1970       g_unsetenv ("DESKTOP_STARTUP_ID");
1971     }
1972 }
1973
1974 static void
1975 broadcast_xmessage (GdkDisplay *display,
1976                     const char *message_type,
1977                     const char *message_type_begin,
1978                     const char *message)
1979 {
1980   Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
1981   GdkScreen *screen = gdk_display_get_default_screen (display);
1982   GdkWindow *root_window = gdk_screen_get_root_window (screen);
1983   Window xroot_window = GDK_WINDOW_XID (root_window);
1984
1985   Atom type_atom;
1986   Atom type_atom_begin;
1987   Window xwindow;
1988
1989   if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
1990     return;
1991
1992   {
1993     XSetWindowAttributes attrs;
1994
1995     attrs.override_redirect = True;
1996     attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
1997
1998     xwindow =
1999       XCreateWindow (xdisplay,
2000                      xroot_window,
2001                      -100, -100, 1, 1,
2002                      0,
2003                      CopyFromParent,
2004                      CopyFromParent,
2005                      (Visual *)CopyFromParent,
2006                      CWOverrideRedirect | CWEventMask,
2007                      &attrs);
2008   }
2009
2010   type_atom = gdk_x11_get_xatom_by_name_for_display (display,
2011                                                      message_type);
2012   type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
2013                                                            message_type_begin);
2014
2015   {
2016     XClientMessageEvent xclient;
2017     const char *src;
2018     const char *src_end;
2019     char *dest;
2020     char *dest_end;
2021
2022                 memset(&xclient, 0, sizeof (xclient));
2023     xclient.type = ClientMessage;
2024     xclient.message_type = type_atom_begin;
2025     xclient.display =xdisplay;
2026     xclient.window = xwindow;
2027     xclient.format = 8;
2028
2029     src = message;
2030     src_end = message + strlen (message) + 1; /* +1 to include nul byte */
2031
2032     while (src != src_end)
2033       {
2034         dest = &xclient.data.b[0];
2035         dest_end = dest + 20;
2036
2037         while (dest != dest_end &&
2038                src != src_end)
2039           {
2040             *dest = *src;
2041             ++dest;
2042             ++src;
2043           }
2044
2045         while (dest != dest_end)
2046           {
2047             *dest = 0;
2048             ++dest;
2049           }
2050
2051         XSendEvent (xdisplay,
2052                     xroot_window,
2053                     False,
2054                     PropertyChangeMask,
2055                     (XEvent *)&xclient);
2056
2057         xclient.message_type = type_atom;
2058       }
2059   }
2060
2061   XDestroyWindow (xdisplay, xwindow);
2062   XFlush (xdisplay);
2063 }
2064
2065 /**
2066  * gdk_x11_display_broadcast_startup_message:
2067  * @display: (type GdkX11Display): a #GdkDisplay
2068  * @message_type: startup notification message type ("new", "change",
2069  * or "remove")
2070  * @...: a list of key/value pairs (as strings), terminated by a
2071  * %NULL key. (A %NULL value for a key will cause that key to be
2072  * skipped in the output.)
2073  *
2074  * Sends a startup notification message of type @message_type to
2075  * @display.
2076  *
2077  * This is a convenience function for use by code that implements the
2078  * freedesktop startup notification specification. Applications should
2079  * not normally need to call it directly. See the <ulink
2080  * url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">Startup
2081  * Notification Protocol specification</ulink> for
2082  * definitions of the message types and keys that can be used.
2083  *
2084  * Since: 2.12
2085  **/
2086 void
2087 gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
2088                                            const char *message_type,
2089                                            ...)
2090 {
2091   GString *message;
2092   va_list ap;
2093   const char *key, *value, *p;
2094
2095   message = g_string_new (message_type);
2096   g_string_append_c (message, ':');
2097
2098   va_start (ap, message_type);
2099   while ((key = va_arg (ap, const char *)))
2100     {
2101       value = va_arg (ap, const char *);
2102       if (!value)
2103         continue;
2104
2105       g_string_append_printf (message, " %s=\"", key);
2106       for (p = value; *p; p++)
2107         {
2108           switch (*p)
2109             {
2110             case ' ':
2111             case '"':
2112             case '\\':
2113               g_string_append_c (message, '\\');
2114               break;
2115             }
2116
2117           g_string_append_c (message, *p);
2118         }
2119       g_string_append_c (message, '\"');
2120     }
2121   va_end (ap);
2122
2123   broadcast_xmessage (display,
2124                       "_NET_STARTUP_INFO",
2125                       "_NET_STARTUP_INFO_BEGIN",
2126                       message->str);
2127
2128   g_string_free (message, TRUE);
2129 }
2130
2131 static void
2132 gdk_x11_display_notify_startup_complete (GdkDisplay  *display,
2133                                          const gchar *startup_id)
2134 {
2135   if (startup_id == NULL)
2136     {
2137       startup_id = GDK_X11_DISPLAY (display)->startup_notification_id;
2138       if (startup_id == NULL)
2139         return;
2140     }
2141
2142   gdk_x11_display_broadcast_startup_message (display, "remove",
2143                                              "ID", startup_id,
2144                                              NULL);
2145 }
2146
2147 static gboolean
2148 gdk_x11_display_supports_selection_notification (GdkDisplay *display)
2149 {
2150   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2151
2152   return display_x11->have_xfixes;
2153 }
2154
2155 static gboolean
2156 gdk_x11_display_request_selection_notification (GdkDisplay *display,
2157                                                 GdkAtom     selection)
2158
2159 {
2160 #ifdef HAVE_XFIXES
2161   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2162   Atom atom;
2163
2164   if (display_x11->have_xfixes)
2165     {
2166       atom = gdk_x11_atom_to_xatom_for_display (display,
2167                                                 selection);
2168       XFixesSelectSelectionInput (display_x11->xdisplay,
2169                                   display_x11->leader_window,
2170                                   atom,
2171                                   XFixesSetSelectionOwnerNotifyMask |
2172                                   XFixesSelectionWindowDestroyNotifyMask |
2173                                   XFixesSelectionClientCloseNotifyMask);
2174       return TRUE;
2175     }
2176   else
2177 #endif
2178     return FALSE;
2179 }
2180
2181 static gboolean
2182 gdk_x11_display_supports_clipboard_persistence (GdkDisplay *display)
2183 {
2184   Atom clipboard_manager;
2185
2186   /* It might make sense to cache this */
2187   clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
2188   return XGetSelectionOwner (GDK_X11_DISPLAY (display)->xdisplay, clipboard_manager) != None;
2189 }
2190
2191 static void
2192 gdk_x11_display_store_clipboard (GdkDisplay    *display,
2193                                  GdkWindow     *clipboard_window,
2194                                  guint32        time_,
2195                                  const GdkAtom *targets,
2196                                  gint           n_targets)
2197 {
2198   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2199   Atom clipboard_manager, save_targets;
2200
2201   g_return_if_fail (GDK_WINDOW_IS_X11 (clipboard_window));
2202
2203   clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
2204   save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
2205
2206   gdk_x11_display_error_trap_push (display);
2207
2208   if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
2209     {
2210       Atom property_name = None;
2211       Atom *xatoms;
2212       int i;
2213
2214       if (n_targets > 0)
2215         {
2216           property_name = gdk_x11_get_xatom_by_name_for_display (display, "GDK_SELECTION");
2217
2218           xatoms = g_new (Atom, n_targets);
2219           for (i = 0; i < n_targets; i++)
2220             xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
2221
2222           XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
2223                            property_name, XA_ATOM,
2224                            32, PropModeReplace, (guchar *)xatoms, n_targets);
2225           g_free (xatoms);
2226
2227         }
2228
2229       XConvertSelection (display_x11->xdisplay,
2230                          clipboard_manager, save_targets, property_name,
2231                          GDK_WINDOW_XID (clipboard_window), time_);
2232
2233     }
2234   gdk_x11_display_error_trap_pop_ignored (display);
2235
2236 }
2237
2238 /**
2239  * gdk_x11_display_get_user_time:
2240  * @display: (type GdkX11Display): a #GdkDisplay
2241  *
2242  * Returns the timestamp of the last user interaction on
2243  * @display. The timestamp is taken from events caused
2244  * by user interaction such as key presses or pointer
2245  * movements. See gdk_x11_window_set_user_time().
2246  *
2247  * Returns: the timestamp of the last user interaction
2248  *
2249  * Since: 2.8
2250  */
2251 guint32
2252 gdk_x11_display_get_user_time (GdkDisplay *display)
2253 {
2254   return GDK_X11_DISPLAY (display)->user_time;
2255 }
2256
2257 static gboolean
2258 gdk_x11_display_supports_shapes (GdkDisplay *display)
2259 {
2260   return GDK_X11_DISPLAY (display)->have_shapes;
2261 }
2262
2263 static gboolean
2264 gdk_x11_display_supports_input_shapes (GdkDisplay *display)
2265 {
2266   return GDK_X11_DISPLAY (display)->have_input_shapes;
2267 }
2268
2269
2270 /**
2271  * gdk_x11_display_get_startup_notification_id:
2272  * @display: (type GdkX11Display): a #GdkDisplay
2273  *
2274  * Gets the startup notification ID for a display.
2275  *
2276  * Returns: the startup notification ID for @display
2277  *
2278  * Since: 2.12
2279  */
2280 const gchar *
2281 gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
2282 {
2283   return GDK_X11_DISPLAY (display)->startup_notification_id;
2284 }
2285
2286 /**
2287  * gdk_x11_display_set_startup_notification_id:
2288  * @display: (type GdkX11Display): a #GdkDisplay
2289  * @startup_id: the startup notification ID (must be valid utf8)
2290  *
2291  * Sets the startup notification ID for a display.
2292  *
2293  * This is usually taken from the value of the DESKTOP_STARTUP_ID
2294  * environment variable, but in some cases (such as the application not
2295  * being launched using exec()) it can come from other sources.
2296  *
2297  * If the ID contains the string "_TIME" then the portion following that
2298  * string is taken to be the X11 timestamp of the event that triggered
2299  * the application to be launched and the GDK current event time is set
2300  * accordingly.
2301  *
2302  * The startup ID is also what is used to signal that the startup is
2303  * complete (for example, when opening a window or when calling
2304  * gdk_notify_startup_complete()).
2305  *
2306  * Since: 3.0
2307  **/
2308 void
2309 gdk_x11_display_set_startup_notification_id (GdkDisplay  *display,
2310                                              const gchar *startup_id)
2311 {
2312   GdkX11Display *display_x11;
2313   gchar *time_str;
2314
2315   display_x11 = GDK_X11_DISPLAY (display);
2316
2317   g_free (display_x11->startup_notification_id);
2318   display_x11->startup_notification_id = g_strdup (startup_id);
2319
2320   /* Find the launch time from the startup_id, if it's there.  Newer spec
2321    * states that the startup_id is of the form <unique>_TIME<timestamp>
2322    */
2323   time_str = g_strrstr (startup_id, "_TIME");
2324   if (time_str != NULL)
2325     {
2326       gulong retval;
2327       gchar *end;
2328       errno = 0;
2329
2330       /* Skip past the "_TIME" part */
2331       time_str += 5;
2332
2333       retval = strtoul (time_str, &end, 0);
2334       if (end != time_str && errno == 0)
2335         display_x11->user_time = retval;
2336     }
2337
2338   /* Set the startup id on the leader window so it
2339    * applies to all windows we create on this display
2340    */
2341   XChangeProperty (display_x11->xdisplay,
2342                    display_x11->leader_window,
2343                    gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
2344                    gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
2345                    PropModeReplace,
2346                    (guchar *)startup_id, strlen (startup_id));
2347 }
2348
2349 static gboolean
2350 gdk_x11_display_supports_composite (GdkDisplay *display)
2351 {
2352   GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
2353
2354   return x11_display->have_xcomposite &&
2355          x11_display->have_xdamage &&
2356          x11_display->have_xfixes;
2357 }
2358
2359 static GList *
2360 gdk_x11_display_list_devices (GdkDisplay *display)
2361 {
2362   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
2363
2364   return GDK_X11_DISPLAY (display)->input_devices;
2365 }
2366
2367 /**
2368  * gdk_x11_register_standard_event_type:
2369  * @display: a #GdkDisplay
2370  * @event_base: first event type code to register
2371  * @n_events: number of event type codes to register
2372  *
2373  * Registers interest in receiving extension events with type codes
2374  * between @event_base and <literal>event_base + n_events - 1</literal>.
2375  * The registered events must have the window field in the same place
2376  * as core X events (this is not the case for e.g. XKB extension events).
2377  *
2378  * If an event type is registered, events of this type will go through
2379  * global and window-specific filters (see gdk_window_add_filter()).
2380  * Unregistered events will only go through global filters.
2381  * GDK may register the events of some X extensions on its own.
2382  *
2383  * This function should only be needed in unusual circumstances, e.g.
2384  * when filtering XInput extension events on the root window.
2385  *
2386  * Since: 2.4
2387  **/
2388 void
2389 gdk_x11_register_standard_event_type (GdkDisplay *display,
2390                                       gint        event_base,
2391                                       gint        n_events)
2392 {
2393   GdkEventTypeX11 *event_type;
2394   GdkX11Display *display_x11;
2395
2396   display_x11 = GDK_X11_DISPLAY (display);
2397   event_type = g_new (GdkEventTypeX11, 1);
2398
2399   event_type->base = event_base;
2400   event_type->n_events = n_events;
2401
2402   display_x11->event_types = g_slist_prepend (display_x11->event_types, event_type);
2403 }
2404
2405 /* compare X sequence numbers handling wraparound */
2406 #define SEQUENCE_COMPARE(a,op,b) (((long) (a) - (long) (b)) op 0)
2407
2408 /* delivers an error event from the error handler in gdkmain-x11.c */
2409 void
2410 _gdk_x11_display_error_event (GdkDisplay  *display,
2411                               XErrorEvent *error)
2412 {
2413   GdkX11Display *display_x11;
2414   GSList *tmp_list;
2415   gboolean ignore;
2416
2417   display_x11 = GDK_X11_DISPLAY (display);
2418
2419   ignore = FALSE;
2420   for (tmp_list = display_x11->error_traps;
2421        tmp_list != NULL;
2422        tmp_list = tmp_list->next)
2423     {
2424       GdkErrorTrap *trap;
2425
2426       trap = tmp_list->data;
2427
2428       if (SEQUENCE_COMPARE (trap->start_sequence, <=, error->serial) &&
2429           (trap->end_sequence == 0 ||
2430            SEQUENCE_COMPARE (trap->end_sequence, >, error->serial)))
2431         {
2432           ignore = TRUE;
2433           trap->error_code = error->error_code;
2434           break; /* only innermost trap gets the error code */
2435         }
2436     }
2437
2438   if (!ignore)
2439     {
2440       gchar buf[64];
2441       gchar *msg;
2442
2443       XGetErrorText (display_x11->xdisplay, error->error_code, buf, 63);
2444
2445       msg =
2446         g_strdup_printf ("The program '%s' received an X Window System error.\n"
2447                          "This probably reflects a bug in the program.\n"
2448                          "The error was '%s'.\n"
2449                          "  (Details: serial %ld error_code %d request_code %d minor_code %d)\n"
2450                          "  (Note to programmers: normally, X errors are reported asynchronously;\n"
2451                          "   that is, you will receive the error a while after causing it.\n"
2452                          "   To debug your program, run it with the GDK_SYNCHRONIZE environment\n"
2453                          "   variable to change this behavior. You can then get a meaningful\n"
2454                          "   backtrace from your debugger if you break on the gdk_x_error() function.)",
2455                          g_get_prgname (),
2456                          buf,
2457                          error->serial,
2458                          error->error_code,
2459                          error->request_code,
2460                          error->minor_code);
2461
2462 #ifdef G_ENABLE_DEBUG
2463       g_error ("%s", msg);
2464 #else /* !G_ENABLE_DEBUG */
2465       g_warning ("%s\n", msg);
2466
2467       _exit (1);
2468 #endif /* G_ENABLE_DEBUG */
2469     }
2470 }
2471
2472 static void
2473 delete_outdated_error_traps (GdkX11Display *display_x11)
2474 {
2475   GSList *tmp_list;
2476   gulong processed_sequence;
2477
2478   processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
2479
2480   tmp_list = display_x11->error_traps;
2481   while (tmp_list != NULL)
2482     {
2483       GdkErrorTrap *trap = tmp_list->data;
2484
2485       if (trap->end_sequence != 0 &&
2486           SEQUENCE_COMPARE (trap->end_sequence, <=, processed_sequence))
2487         {
2488           GSList *free_me = tmp_list;
2489
2490           tmp_list = tmp_list->next;
2491           display_x11->error_traps =
2492             g_slist_delete_link (display_x11->error_traps, free_me);
2493           g_slice_free (GdkErrorTrap, trap);
2494         }
2495       else
2496         {
2497           tmp_list = tmp_list->next;
2498         }
2499     }
2500 }
2501
2502 /**
2503  * gdk_x11_display_error_trap_push:
2504  * @display: (type GdkX11Display): a #GdkDisplay
2505  *
2506  * Begins a range of X requests on @display for which X error events
2507  * will be ignored. Unignored errors (when no trap is pushed) will abort
2508  * the application. Use gdk_x11_display_error_trap_pop() or
2509  * gdk_x11_display_error_trap_pop_ignored()to lift a trap pushed
2510  * with this function.
2511  *
2512  * See also gdk_error_trap_push() to push a trap on all displays.
2513  *
2514  * Since: 3.0
2515  */
2516 void
2517 gdk_x11_display_error_trap_push (GdkDisplay *display)
2518 {
2519   GdkX11Display *display_x11;
2520   GdkErrorTrap *trap;
2521
2522   display_x11 = GDK_X11_DISPLAY (display);
2523
2524   delete_outdated_error_traps (display_x11);
2525
2526   /* set up the Xlib callback to tell us about errors */
2527   _gdk_x11_error_handler_push ();
2528
2529   trap = g_slice_new0 (GdkErrorTrap);
2530
2531   trap->start_sequence = XNextRequest (display_x11->xdisplay);
2532   trap->error_code = Success;
2533
2534   display_x11->error_traps =
2535     g_slist_prepend (display_x11->error_traps, trap);
2536 }
2537
2538 static gint
2539 gdk_x11_display_error_trap_pop_internal (GdkDisplay *display,
2540                                          gboolean    need_code)
2541 {
2542   GdkX11Display *display_x11;
2543   GdkErrorTrap *trap;
2544   GSList *tmp_list;
2545   int result;
2546
2547   display_x11 = GDK_X11_DISPLAY (display);
2548
2549   g_return_val_if_fail (display_x11->error_traps != NULL, Success);
2550
2551   /* Find the first trap that hasn't been popped already */
2552   trap = NULL; /* quiet gcc */
2553   for (tmp_list = display_x11->error_traps;
2554        tmp_list != NULL;
2555        tmp_list = tmp_list->next)
2556     {
2557       trap = tmp_list->data;
2558
2559       if (trap->end_sequence == 0)
2560         break;
2561     }
2562
2563   g_return_val_if_fail (trap != NULL, Success);
2564   g_assert (trap->end_sequence == 0);
2565
2566   /* May need to sync to fill in trap->error_code if we care about
2567    * getting an error code.
2568    */
2569   if (need_code)
2570     {
2571       gulong processed_sequence;
2572       gulong next_sequence;
2573
2574       next_sequence = XNextRequest (display_x11->xdisplay);
2575       processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
2576
2577       /* If our last request was already processed, there is no point
2578        * in syncing. i.e. if last request was a round trip (or even if
2579        * we got an event with the serial of a non-round-trip)
2580        */
2581       if ((next_sequence - 1) != processed_sequence)
2582         {
2583           XSync (display_x11->xdisplay, False);
2584         }
2585
2586       result = trap->error_code;
2587     }
2588   else
2589     {
2590       result = Success;
2591     }
2592
2593   /* record end of trap, giving us a range of
2594    * error sequences we'll ignore.
2595    */
2596   trap->end_sequence = XNextRequest (display_x11->xdisplay);
2597
2598   /* remove the Xlib callback */
2599   _gdk_x11_error_handler_pop ();
2600
2601   /* we may already be outdated */
2602   delete_outdated_error_traps (display_x11);
2603
2604   return result;
2605 }
2606
2607 /**
2608  * gdk_x11_display_error_trap_pop:
2609  * @display: (type GdkX11Display): the display
2610  *
2611  * Pops the error trap pushed by gdk_x11_display_error_trap_push().
2612  * Will XSync() if necessary and will always block until
2613  * the error is known to have occurred or not occurred,
2614  * so the error code can be returned.
2615  *
2616  * If you don't need to use the return value,
2617  * gdk_x11_display_error_trap_pop_ignored() would be more efficient.
2618  *
2619  * See gdk_error_trap_pop() for the all-displays-at-once
2620  * equivalent.
2621  *
2622  * Since: 3.0
2623  *
2624  * Return value: X error code or 0 on success
2625  */
2626 gint
2627 gdk_x11_display_error_trap_pop (GdkDisplay *display)
2628 {
2629   g_return_val_if_fail (GDK_IS_X11_DISPLAY (display), Success);
2630
2631   return gdk_x11_display_error_trap_pop_internal (display, TRUE);
2632 }
2633
2634 /**
2635  * gdk_x11_display_error_trap_pop_ignored:
2636  * @display: (type GdkX11Display): the display
2637  *
2638  * Pops the error trap pushed by gdk_x11_display_error_trap_push().
2639  * Does not block to see if an error occurred; merely records the
2640  * range of requests to ignore errors for, and ignores those errors
2641  * if they arrive asynchronously.
2642  *
2643  * See gdk_error_trap_pop_ignored() for the all-displays-at-once
2644  * equivalent.
2645  *
2646  * Since: 3.0
2647  */
2648 void
2649 gdk_x11_display_error_trap_pop_ignored (GdkDisplay *display)
2650 {
2651   g_return_if_fail (GDK_IS_X11_DISPLAY (display));
2652
2653   gdk_x11_display_error_trap_pop_internal (display, FALSE);
2654 }
2655
2656 /**
2657  * gdk_x11_set_sm_client_id:
2658  * @sm_client_id: the client id assigned by the session manager when the
2659  *    connection was opened, or %NULL to remove the property.
2660  *
2661  * Sets the <literal>SM_CLIENT_ID</literal> property on the application's leader window so that
2662  * the window manager can save the application's state using the X11R6 ICCCM
2663  * session management protocol.
2664  *
2665  * See the X Session Management Library documentation for more information on
2666  * session management and the Inter-Client Communication Conventions Manual
2667  *
2668  * Since: 2.24
2669  */
2670 void
2671 gdk_x11_set_sm_client_id (const gchar *sm_client_id)
2672 {
2673  GSList *displays, *l;
2674
2675   g_free (gdk_sm_client_id);
2676   gdk_sm_client_id = g_strdup (sm_client_id);
2677
2678   displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
2679   for (l = displays; l; l = l->next)
2680     set_sm_client_id (l->data, sm_client_id);
2681
2682   g_slist_free (displays);
2683 }
2684
2685 static void
2686 gdk_x11_display_event_data_copy (GdkDisplay    *display,
2687                                 const GdkEvent *src,
2688                                 GdkEvent       *dst)
2689 {
2690 }
2691
2692 static void
2693 gdk_x11_display_event_data_free (GdkDisplay *display,
2694                                  GdkEvent *event)
2695 {
2696 }
2697
2698 static gint
2699 pop_error_trap (GdkDisplay *display,
2700                 gboolean    ignored)
2701 {
2702   if (ignored)
2703     {
2704       gdk_x11_display_error_trap_pop_ignored (display);
2705       return Success;
2706     }
2707   else
2708     {
2709       return gdk_x11_display_error_trap_pop (display);
2710     }
2711 }
2712
2713 static GdkKeymap *
2714 gdk_x11_display_get_keymap (GdkDisplay *display)
2715 {
2716   GdkX11Display *display_x11;
2717   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
2718   display_x11 = GDK_X11_DISPLAY (display);
2719
2720   if (!display_x11->keymap)
2721     display_x11->keymap = g_object_new (GDK_TYPE_X11_KEYMAP, NULL);
2722
2723   display_x11->keymap->display = display;
2724
2725   return display_x11->keymap;
2726 }
2727
2728 static void
2729 gdk_x11_display_class_init (GdkX11DisplayClass * class)
2730 {
2731   GObjectClass *object_class = G_OBJECT_CLASS (class);
2732   GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
2733
2734   object_class->dispose = gdk_x11_display_dispose;
2735   object_class->finalize = gdk_x11_display_finalize;
2736
2737   display_class->window_type = GDK_TYPE_X11_WINDOW;
2738
2739   display_class->get_name = gdk_x11_display_get_name;
2740   display_class->get_n_screens = gdk_x11_display_get_n_screens;
2741   display_class->get_screen = gdk_x11_display_get_screen;
2742   display_class->get_default_screen = gdk_x11_display_get_default_screen;
2743   display_class->beep = gdk_x11_display_beep;
2744   display_class->sync = gdk_x11_display_sync;
2745   display_class->flush = gdk_x11_display_flush;
2746   display_class->has_pending = gdk_x11_display_has_pending;
2747   display_class->queue_events = _gdk_x11_display_queue_events;
2748   display_class->get_default_group = gdk_x11_display_get_default_group;
2749   display_class->supports_selection_notification = gdk_x11_display_supports_selection_notification;
2750   display_class->request_selection_notification = gdk_x11_display_request_selection_notification;
2751   display_class->supports_clipboard_persistence = gdk_x11_display_supports_clipboard_persistence;
2752   display_class->store_clipboard = gdk_x11_display_store_clipboard;
2753   display_class->supports_shapes = gdk_x11_display_supports_shapes;
2754   display_class->supports_input_shapes = gdk_x11_display_supports_input_shapes;
2755   display_class->supports_composite = gdk_x11_display_supports_composite;
2756   display_class->list_devices = gdk_x11_display_list_devices;
2757   display_class->get_app_launch_context = _gdk_x11_display_get_app_launch_context;
2758   display_class->get_cursor_for_type = _gdk_x11_display_get_cursor_for_type;
2759   display_class->get_cursor_for_name = _gdk_x11_display_get_cursor_for_name;
2760   display_class->get_cursor_for_pixbuf = _gdk_x11_display_get_cursor_for_pixbuf;
2761   display_class->get_default_cursor_size = _gdk_x11_display_get_default_cursor_size;
2762   display_class->get_maximal_cursor_size = _gdk_x11_display_get_maximal_cursor_size;
2763   display_class->supports_cursor_alpha = _gdk_x11_display_supports_cursor_alpha;
2764   display_class->supports_cursor_color = _gdk_x11_display_supports_cursor_color;
2765
2766   display_class->before_process_all_updates = _gdk_x11_display_before_process_all_updates;
2767   display_class->after_process_all_updates = _gdk_x11_display_after_process_all_updates;
2768   display_class->get_next_serial = gdk_x11_display_get_next_serial;
2769   display_class->notify_startup_complete = gdk_x11_display_notify_startup_complete;
2770   display_class->event_data_copy = gdk_x11_display_event_data_copy;
2771   display_class->event_data_free = gdk_x11_display_event_data_free;
2772   display_class->create_window_impl = _gdk_x11_display_create_window_impl;
2773   display_class->get_keymap = gdk_x11_display_get_keymap;
2774   display_class->push_error_trap = gdk_x11_display_error_trap_push;
2775   display_class->pop_error_trap = pop_error_trap;
2776   display_class->get_selection_owner = _gdk_x11_display_get_selection_owner;
2777   display_class->set_selection_owner = _gdk_x11_display_set_selection_owner;
2778   display_class->send_selection_notify = _gdk_x11_display_send_selection_notify;
2779   display_class->get_selection_property = _gdk_x11_display_get_selection_property;
2780   display_class->convert_selection = _gdk_x11_display_convert_selection;
2781   display_class->text_property_to_utf8_list = _gdk_x11_display_text_property_to_utf8_list;
2782   display_class->utf8_to_string_target = _gdk_x11_display_utf8_to_string_target;
2783 }