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, write to the
  21  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  22  * Boston, MA 02111-1307, USA.
  23  */
  24
  25 #include "config.h"
  26
  27 #include "gdkasync.h"
  28 #include "gdkdisplay.h"
  29 #include "gdkeventsource.h"
  30 #include "gdkeventtranslator.h"
  31 #include "gdkinternals.h"
  32 #include "gdkscreen.h"
  33 #include "gdkinternals.h"
  34 #include "gdkdeviceprivate.h"
  35 #include "gdkkeysprivate.h"
  36 #include "gdkdevicemanager.h"
  37 #include "xsettings-client.h"
  38 #include "gdkdisplay-x11.h"
  39 #include "gdkprivate-x11.h"
  40 #include "gdkscreen-x11.h"
  41
  42 #include <glib.h>
  43 #include <glib/gprintf.h>
  44 #include <stdlib.h>
  45 #include <string.h>
  46 #include <errno.h>
  47 #include <unistd.h>
  48
  49 #include <X11/Xatom.h>
  50
  51 #ifdef HAVE_XKB
  52 #include <X11/XKBlib.h>
  53 #endif
  54
  55 #ifdef HAVE_XFIXES
  56 #include <X11/extensions/Xfixes.h>
  57 #endif
  58
  59 #include <X11/extensions/shape.h>
  60
  61 #ifdef HAVE_XCOMPOSITE
  62 #include <X11/extensions/Xcomposite.h>
  63 #endif
  64
  65 #ifdef HAVE_XDAMAGE
  66 #include <X11/extensions/Xdamage.h>
  67 #endif
  68
  69 #ifdef HAVE_RANDR
  70 #include <X11/extensions/Xrandr.h>
  71 #endif
  72
  73 typedef struct _GdkErrorTrap  GdkErrorTrap;
  74
  75 struct _GdkErrorTrap
  76 {
  77   /* Next sequence when trap was pushed, i.e. first sequence to
  78    * ignore
  79    */
  80   gulong start_sequence;
  81
  82   /* Next sequence when trap was popped, i.e. first sequence
  83    * to not ignore. 0 if trap is still active.
  84    */
  85   gulong end_sequence;
  86
  87   /* Most recent error code within the sequence */
  88   int error_code;
  89 };
  90
  91 static void   gdk_x11_display_dispose            (GObject            *object);
  92 static void   gdk_x11_display_finalize           (GObject            *object);
  93
  94 static void     gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface);
  95
  96 static gboolean gdk_x11_display_translate_event (GdkEventTranslator *translator,
  97                                                  GdkDisplay         *display,
  98                                                  GdkEvent           *event,
  99                                                  XEvent             *xevent);
 100
 101 #ifdef HAVE_X11R6
 102 static void gdk_internal_connection_watch (Display  *display,
 103                                            XPointer  arg,
 104                                            gint      fd,
 105                                            gboolean  opening,
 106                                            XPointer *watch_data);
 107 #endif /* HAVE_X11R6 */
 108
 109 typedef struct _GdkEventTypeX11 GdkEventTypeX11;
 110
 111 struct _GdkEventTypeX11
 112 {
 113   gint base;
 114   gint n_events;
 115 };
 116
 117 /* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
 118  * but including them here has the side-effect of getting them
 119  * into the internal Xlib cache
 120  */
 121 static const char *const precache_atoms[] = {
 122   "UTF8_STRING",
 123   "WM_CLIENT_LEADER",
 124   "WM_DELETE_WINDOW",
 125   "WM_ICON_NAME",
 126   "WM_LOCALE_NAME",
 127   "WM_NAME",
 128   "WM_PROTOCOLS",
 129   "WM_TAKE_FOCUS",
 130   "WM_WINDOW_ROLE",
 131   "_NET_ACTIVE_WINDOW",
 132   "_NET_CURRENT_DESKTOP",
 133   "_NET_FRAME_EXTENTS",
 134   "_NET_STARTUP_ID",
 135   "_NET_WM_CM_S0",
 136   "_NET_WM_DESKTOP",
 137   "_NET_WM_ICON",
 138   "_NET_WM_ICON_NAME",
 139   "_NET_WM_NAME",
 140   "_NET_WM_PID",
 141   "_NET_WM_PING",
 142   "_NET_WM_STATE",
 143   "_NET_WM_STATE_ABOVE",
 144   "_NET_WM_STATE_BELOW",
 145   "_NET_WM_STATE_FULLSCREEN",
 146   "_NET_WM_STATE_MODAL",
 147   "_NET_WM_STATE_MAXIMIZED_VERT",
 148   "_NET_WM_STATE_MAXIMIZED_HORZ",
 149   "_NET_WM_STATE_SKIP_TASKBAR",
 150   "_NET_WM_STATE_SKIP_PAGER",
 151   "_NET_WM_STATE_STICKY",
 152   "_NET_WM_SYNC_REQUEST",
 153   "_NET_WM_SYNC_REQUEST_COUNTER",
 154   "_NET_WM_WINDOW_TYPE",
 155   "_NET_WM_WINDOW_TYPE_NORMAL",
 156   "_NET_WM_USER_TIME",
 157   "_NET_VIRTUAL_ROOTS",
 158   "GDK_SELECTION"
 159 };
 160
 161 static char *gdk_sm_client_id;
 162
 163 G_DEFINE_TYPE_WITH_CODE (GdkX11Display, gdk_x11_display, GDK_TYPE_DISPLAY,
 164                          G_IMPLEMENT_INTERFACE (GDK_TYPE_EVENT_TRANSLATOR,
 165                                                 gdk_x11_display_event_translator_init))
 166
 167
 168 static void
 169 gdk_x11_display_init (GdkX11Display *display)
 170 {
 171   _gdk_x11_display_manager_add_display (gdk_display_manager_get (),
 172                                         GDK_DISPLAY (display));
 173 }
 174
 175 static void
 176 gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface)
 177 {
 178   iface->translate_event = gdk_x11_display_translate_event;
 179 }
 180
 181 static void
 182 do_net_wm_state_changes (GdkWindow *window)
 183 {
 184   GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
 185   GdkWindowState old_state;
 186
 187   if (GDK_WINDOW_DESTROYED (window) ||
 188       gdk_window_get_window_type (window) != GDK_WINDOW_TOPLEVEL)
 189     return;
 190
 191   old_state = gdk_window_get_state (window);
 192
 193   /* For found_sticky to remain TRUE, we have to also be on desktop
 194    * 0xFFFFFFFF
 195    */
 196   if (old_state & GDK_WINDOW_STATE_STICKY)
 197     {
 198       if (!(toplevel->have_sticky && toplevel->on_all_desktops))
 199         gdk_synthesize_window_state (window,
 200                                      GDK_WINDOW_STATE_STICKY,
 201                                      0);
 202     }
 203   else
 204     {
 205       if (toplevel->have_sticky || toplevel->on_all_desktops)
 206         gdk_synthesize_window_state (window,
 207                                      0,
 208                                      GDK_WINDOW_STATE_STICKY);
 209     }
 210
 211   if (old_state & GDK_WINDOW_STATE_FULLSCREEN)
 212     {
 213       if (!toplevel->have_fullscreen)
 214         gdk_synthesize_window_state (window,
 215                                      GDK_WINDOW_STATE_FULLSCREEN,
 216                                      0);
 217     }
 218   else
 219     {
 220       if (toplevel->have_fullscreen)
 221         gdk_synthesize_window_state (window,
 222                                      0,
 223                                      GDK_WINDOW_STATE_FULLSCREEN);
 224     }
 225
 226   /* Our "maximized" means both vertical and horizontal; if only one,
 227    * we don't expose that via GDK
 228    */
 229   if (old_state & GDK_WINDOW_STATE_MAXIMIZED)
 230     {
 231       if (!(toplevel->have_maxvert && toplevel->have_maxhorz))
 232         gdk_synthesize_window_state (window,
 233                                      GDK_WINDOW_STATE_MAXIMIZED,
 234                                      0);
 235     }
 236   else
 237     {
 238       if (toplevel->have_maxvert && toplevel->have_maxhorz)
 239         gdk_synthesize_window_state (window,
 240                                      0,
 241                                      GDK_WINDOW_STATE_MAXIMIZED);
 242     }
 243 }
 244
 245 static void
 246 gdk_check_wm_desktop_changed (GdkWindow *window)
 247 {
 248   GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
 249   GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
 250
 251   Atom type;
 252   gint format;
 253   gulong nitems;
 254   gulong bytes_after;
 255   guchar *data;
 256   gulong *desktop;
 257
 258   type = None;
 259   gdk_x11_display_error_trap_push (display);
 260   XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
 261                       GDK_WINDOW_XID (window),
 262                       gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"),
 263                       0, G_MAXLONG, False, XA_CARDINAL, &type,
 264                       &format, &nitems,
 265                       &bytes_after, &data);
 266   gdk_x11_display_error_trap_pop_ignored (display);
 267
 268   if (type != None)
 269     {
 270       desktop = (gulong *)data;
 271       toplevel->on_all_desktops = (*desktop == 0xFFFFFFFF);
 272       XFree (desktop);
 273     }
 274   else
 275     toplevel->on_all_desktops = FALSE;
 276
 277   do_net_wm_state_changes (window);
 278 }
 279
 280 static void
 281 gdk_check_wm_state_changed (GdkWindow *window)
 282 {
 283   GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
 284   GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
 285
 286   Atom type;
 287   gint format;
 288   gulong nitems;
 289   gulong bytes_after;
 290   guchar *data;
 291   Atom *atoms = NULL;
 292   gulong i;
 293
 294   gboolean had_sticky = toplevel->have_sticky;
 295
 296   toplevel->have_sticky = FALSE;
 297   toplevel->have_maxvert = FALSE;
 298   toplevel->have_maxhorz = FALSE;
 299   toplevel->have_fullscreen = FALSE;
 300
 301   type = None;
 302   gdk_x11_display_error_trap_push (display);
 303   XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window),
 304                       gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"),
 305                       0, G_MAXLONG, False, XA_ATOM, &type, &format, &nitems,
 306                       &bytes_after, &data);
 307   gdk_x11_display_error_trap_pop_ignored (display);
 308
 309   if (type != None)
 310     {
 311       Atom sticky_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_STICKY");
 312       Atom maxvert_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_VERT");
 313       Atom maxhorz_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_HORZ");
 314       Atom fullscreen_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FULLSCREEN");
 315
 316       atoms = (Atom *)data;
 317
 318       i = 0;
 319       while (i < nitems)
 320         {
 321           if (atoms[i] == sticky_atom)
 322             toplevel->have_sticky = TRUE;
 323           else if (atoms[i] == maxvert_atom)
 324             toplevel->have_maxvert = TRUE;
 325           else if (atoms[i] == maxhorz_atom)
 326             toplevel->have_maxhorz = TRUE;
 327           else if (atoms[i] == fullscreen_atom)
 328             toplevel->have_fullscreen = TRUE;
 329
 330           ++i;
 331         }
 332
 333       XFree (atoms);
 334     }
 335
 336   /* When have_sticky is turned on, we have to check the DESKTOP property
 337    * as well.
 338    */
 339   if (toplevel->have_sticky && !had_sticky)
 340     gdk_check_wm_desktop_changed (window);
 341   else
 342     do_net_wm_state_changes (window);
 343 }
 344
 345 static GdkWindow *
 346 get_event_window (GdkEventTranslator *translator,
 347                   XEvent             *xevent)
 348 {
 349   GdkDisplay *display;
 350   Window xwindow;
 351
 352   display = (GdkDisplay *) translator;
 353
 354   switch (xevent->type)
 355     {
 356     case DestroyNotify:
 357       xwindow = xevent->xdestroywindow.window;
 358       break;
 359     case UnmapNotify:
 360       xwindow = xevent->xunmap.window;
 361       break;
 362     case MapNotify:
 363       xwindow = xevent->xmap.window;
 364       break;
 365     case ConfigureNotify:
 366       xwindow = xevent->xconfigure.window;
 367       break;
 368     default:
 369       xwindow = xevent->xany.window;
 370     }
 371
 372   return gdk_x11_window_lookup_for_display (display, xwindow);
 373 }
 374
 375 static gboolean
 376 gdk_x11_display_translate_event (GdkEventTranslator *translator,
 377                                  GdkDisplay         *display,
 378                                  GdkEvent           *event,
 379                                  XEvent             *xevent)
 380 {
 381   GdkWindow *window;
 382   GdkWindowImplX11 *window_impl = NULL;
 383   GdkScreen *screen = NULL;
 384   GdkX11Screen *x11_screen = NULL;
 385   GdkToplevelX11 *toplevel = NULL;
 386   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
 387   gboolean return_val;
 388   Window xwindow = None;
 389
 390   /* Find the GdkWindow that this event relates to.
 391    * Basically this means substructure events
 392    * are reported same as structure events
 393    */
 394   window = get_event_window (translator, xevent);
 395
 396   if (window)
 397     {
 398       /* We may receive events such as NoExpose/GraphicsExpose
 399        * and ShmCompletion for pixmaps
 400        */
 401       if (!GDK_IS_WINDOW (window))
 402         return FALSE;
 403
 404       screen = GDK_WINDOW_SCREEN (window);
 405       x11_screen = GDK_X11_SCREEN (screen);
 406       toplevel = _gdk_x11_window_get_toplevel (window);
 407       window_impl = GDK_WINDOW_IMPL_X11 (window->impl);
 408       xwindow = GDK_WINDOW_XID (window);
 409
 410       g_object_ref (window);
 411     }
 412
 413   event->any.window = window;
 414   event->any.send_event = xevent->xany.send_event ? TRUE : FALSE;
 415
 416   if (window && GDK_WINDOW_DESTROYED (window))
 417     {
 418       if (xevent->type != DestroyNotify)
 419         {
 420           return_val = FALSE;
 421           goto done;
 422         }
 423     }
 424
 425   if (xevent->type == DestroyNotify)
 426     {
 427       int i, n;
 428
 429       n = gdk_display_get_n_screens (display);
 430       for (i = 0; i < n; i++)
 431         {
 432           screen = gdk_display_get_screen (display, i);
 433           x11_screen = GDK_X11_SCREEN (screen);
 434
 435           if (x11_screen->wmspec_check_window == xwindow)
 436             {
 437               x11_screen->wmspec_check_window = None;
 438               x11_screen->last_wmspec_check_time = 0;
 439               g_free (x11_screen->window_manager_name);
 440               x11_screen->window_manager_name = g_strdup ("unknown");
 441
 442               /* careful, reentrancy */
 443               _gdk_x11_screen_window_manager_changed (screen);
 444
 445               return_val = FALSE;
 446               goto done;
 447             }
 448         }
 449     }
 450
 451   /* We do a "manual" conversion of the XEvent to a
 452    *  GdkEvent. The structures are mostly the same so
 453    *  the conversion is fairly straightforward. We also
 454    *  optionally print debugging info regarding events
 455    *  received.
 456    */
 457
 458   return_val = TRUE;
 459
 460   switch (xevent->type)
 461     {
 462     case KeymapNotify:
 463       GDK_NOTE (EVENTS,
 464                 g_message ("keymap notify"));
 465
 466       /* Not currently handled */
 467       return_val = FALSE;
 468       break;
 469
 470     case Expose:
 471       GDK_NOTE (EVENTS,
 472                 g_message ("expose:\t\twindow: %ld  %d  x,y: %d %d  w,h: %d %d%s",
 473                            xevent->xexpose.window, xevent->xexpose.count,
 474                            xevent->xexpose.x, xevent->xexpose.y,
 475                            xevent->xexpose.width, xevent->xexpose.height,
 476                            event->any.send_event ? " (send)" : ""));
 477
 478       if (window == NULL)
 479         {
 480           return_val = FALSE;
 481           break;
 482         }
 483
 484       {
 485         GdkRectangle expose_rect;
 486
 487         expose_rect.x = xevent->xexpose.x;
 488         expose_rect.y = xevent->xexpose.y;
 489         expose_rect.width = xevent->xexpose.width;
 490         expose_rect.height = xevent->xexpose.height;
 491
 492         _gdk_x11_window_process_expose (window, xevent->xexpose.serial, &expose_rect);
 493         return_val = FALSE;
 494       }
 495
 496       break;
 497
 498     case GraphicsExpose:
 499       {
 500         GdkRectangle expose_rect;
 501
 502         GDK_NOTE (EVENTS,
 503                   g_message ("graphics expose:\tdrawable: %ld",
 504                              xevent->xgraphicsexpose.drawable));
 505
 506         if (window == NULL)
 507           {
 508             return_val = FALSE;
 509             break;
 510           }
 511
 512         expose_rect.x = xevent->xgraphicsexpose.x;
 513         expose_rect.y = xevent->xgraphicsexpose.y;
 514         expose_rect.width = xevent->xgraphicsexpose.width;
 515         expose_rect.height = xevent->xgraphicsexpose.height;
 516
 517         _gdk_x11_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect);
 518         return_val = FALSE;
 519       }
 520       break;
 521
 522     case VisibilityNotify:
 523 #ifdef G_ENABLE_DEBUG
 524       if (_gdk_debug_flags & GDK_DEBUG_EVENTS)
 525         switch (xevent->xvisibility.state)
 526           {
 527           case VisibilityFullyObscured:
 528             g_message ("visibility notify:\twindow: %ld  none",
 529                        xevent->xvisibility.window);
 530             break;
 531           case VisibilityPartiallyObscured:
 532             g_message ("visibility notify:\twindow: %ld  partial",
 533                        xevent->xvisibility.window);
 534             break;
 535           case VisibilityUnobscured:
 536             g_message ("visibility notify:\twindow: %ld  full",
 537                        xevent->xvisibility.window);
 538             break;
 539           }
 540 #endif /* G_ENABLE_DEBUG */
 541
 542       if (window == NULL)
 543         {
 544           return_val = FALSE;
 545           break;
 546         }
 547
 548       event->visibility.type = GDK_VISIBILITY_NOTIFY;
 549       event->visibility.window = window;
 550
 551       switch (xevent->xvisibility.state)
 552         {
 553         case VisibilityFullyObscured:
 554           event->visibility.state = GDK_VISIBILITY_FULLY_OBSCURED;
 555           break;
 556
 557         case VisibilityPartiallyObscured:
 558           event->visibility.state = GDK_VISIBILITY_PARTIAL;
 559           break;
 560
 561         case VisibilityUnobscured:
 562           event->visibility.state = GDK_VISIBILITY_UNOBSCURED;
 563           break;
 564         }
 565
 566       break;
 567
 568     case CreateNotify:
 569       GDK_NOTE (EVENTS,
 570                 g_message ("create notify:\twindow: %ld  x,y: %d %d     w,h: %d %d  b-w: %d  parent: %ld         ovr: %d",
 571                            xevent->xcreatewindow.window,
 572                            xevent->xcreatewindow.x,
 573                            xevent->xcreatewindow.y,
 574                            xevent->xcreatewindow.width,
 575                            xevent->xcreatewindow.height,
 576                            xevent->xcreatewindow.border_width,
 577                            xevent->xcreatewindow.parent,
 578                            xevent->xcreatewindow.override_redirect));
 579       /* not really handled */
 580       break;
 581
 582     case DestroyNotify:
 583       GDK_NOTE (EVENTS,
 584                 g_message ("destroy notify:\twindow: %ld",
 585                            xevent->xdestroywindow.window));
 586
 587       /* Ignore DestroyNotify from SubstructureNotifyMask */
 588       if (xevent->xdestroywindow.window == xevent->xdestroywindow.event)
 589         {
 590           event->any.type = GDK_DESTROY;
 591           event->any.window = window;
 592
 593           return_val = window && !GDK_WINDOW_DESTROYED (window);
 594
 595           if (window && GDK_WINDOW_XID (window) != x11_screen->xroot_window)
 596             gdk_window_destroy_notify (window);
 597         }
 598       else
 599         return_val = FALSE;
 600
 601       break;
 602
 603     case UnmapNotify:
 604       GDK_NOTE (EVENTS,
 605                 g_message ("unmap notify:\t\twindow: %ld",
 606                            xevent->xmap.window));
 607
 608       event->any.type = GDK_UNMAP;
 609       event->any.window = window;
 610
 611       /* If we are shown (not withdrawn) and get an unmap, it means we
 612        * were iconified in the X sense. If we are withdrawn, and get
 613        * an unmap, it means we hid the window ourselves, so we
 614        * will have already flipped the iconified bit off.
 615        */
 616       if (window)
 617         {
 618           if (GDK_WINDOW_IS_MAPPED (window))
 619             gdk_synthesize_window_state (window,
 620                                          0,
 621                                          GDK_WINDOW_STATE_ICONIFIED);
 622
 623           _gdk_x11_window_grab_check_unmap (window, xevent->xany.serial);
 624         }
 625
 626       break;
 627
 628     case MapNotify:
 629       GDK_NOTE (EVENTS,
 630                 g_message ("map notify:\t\twindow: %ld",
 631                            xevent->xmap.window));
 632
 633       event->any.type = GDK_MAP;
 634       event->any.window = window;
 635
 636       /* Unset iconified if it was set */
 637       if (window && (window->state & GDK_WINDOW_STATE_ICONIFIED))
 638         gdk_synthesize_window_state (window,
 639                                      GDK_WINDOW_STATE_ICONIFIED,
 640                                      0);
 641
 642       break;
 643
 644     case ReparentNotify:
 645       GDK_NOTE (EVENTS,
 646                 g_message ("reparent notify:\twindow: %ld  x,y: %d %d  parent: %ld      ovr: %d",
 647                            xevent->xreparent.window,
 648                            xevent->xreparent.x,
 649                            xevent->xreparent.y,
 650                            xevent->xreparent.parent,
 651                            xevent->xreparent.override_redirect));
 652
 653       /* Not currently handled */
 654       return_val = FALSE;
 655       break;
 656
 657     case ConfigureNotify:
 658       GDK_NOTE (EVENTS,
 659                 g_message ("configure notify:\twindow: %ld  x,y: %d %d  w,h: %d %d  b-w: %d  above: %ld  ovr: %d%s",
 660                            xevent->xconfigure.window,
 661                            xevent->xconfigure.x,
 662                            xevent->xconfigure.y,
 663                            xevent->xconfigure.width,
 664                            xevent->xconfigure.height,
 665                            xevent->xconfigure.border_width,
 666                            xevent->xconfigure.above,
 667                            xevent->xconfigure.override_redirect,
 668                            !window
 669                            ? " (discarding)"
 670                            : window->window_type == GDK_WINDOW_CHILD
 671                            ? " (discarding child)"
 672                            : xevent->xconfigure.event != xevent->xconfigure.window
 673                            ? " (discarding substructure)"
 674                            : ""));
 675       if (window && GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
 676         {
 677           window->width = xevent->xconfigure.width;
 678           window->height = xevent->xconfigure.height;
 679
 680           _gdk_window_update_size (window);
 681           _gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl));
 682           _gdk_x11_screen_size_changed (screen, xevent);
 683         }
 684
 685 #ifdef HAVE_XSYNC
 686       if (toplevel && display_x11->use_sync && !XSyncValueIsZero (toplevel->pending_counter_value))
 687         {
 688           toplevel->current_counter_value = toplevel->pending_counter_value;
 689           XSyncIntToValue (&toplevel->pending_counter_value, 0);
 690         }
 691 #endif
 692
 693     if (!window ||
 694           xevent->xconfigure.event != xevent->xconfigure.window ||
 695           GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD ||
 696           GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
 697         return_val = FALSE;
 698       else
 699         {
 700           event->configure.type = GDK_CONFIGURE;
 701           event->configure.window = window;
 702           event->configure.width = xevent->xconfigure.width;
 703           event->configure.height = xevent->xconfigure.height;
 704
 705           if (!xevent->xconfigure.send_event &&
 706               !xevent->xconfigure.override_redirect &&
 707               !GDK_WINDOW_DESTROYED (window))
 708             {
 709               gint tx = 0;
 710               gint ty = 0;
 711               Window child_window = 0;
 712
 713               gdk_x11_display_error_trap_push (display);
 714               if (XTranslateCoordinates (GDK_WINDOW_XDISPLAY (window),
 715                                          GDK_WINDOW_XID (window),
 716                                          x11_screen->xroot_window,
 717                                          0, 0,
 718                                          &tx, &ty,
 719                                          &child_window))
 720                 {
 721                   event->configure.x = tx;
 722                   event->configure.y = ty;
 723                 }
 724               gdk_x11_display_error_trap_pop_ignored (display);
 725             }
 726           else
 727             {
 728               event->configure.x = xevent->xconfigure.x;
 729               event->configure.y = xevent->xconfigure.y;
 730             }
 731           window->x = event->configure.x;
 732           window->y = event->configure.y;
 733           window->width = xevent->xconfigure.width;
 734           window->height = xevent->xconfigure.height;
 735
 736           _gdk_window_update_size (window);
 737           _gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl));
 738
 739           if (window->resize_count >= 1)
 740             {
 741               window->resize_count -= 1;
 742
 743               if (window->resize_count == 0)
 744                 _gdk_x11_moveresize_configure_done (display, window);
 745             }
 746         }
 747       break;
 748
 749     case PropertyNotify:
 750       GDK_NOTE (EVENTS,
 751                 g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s",
 752                            xevent->xproperty.window,
 753                            xevent->xproperty.atom,
 754                            "\"",
 755                            gdk_x11_get_xatom_name_for_display (display, xevent->xproperty.atom),
 756                            "\""));
 757
 758       if (window == NULL)
 759         {
 760           return_val = FALSE;
 761           break;
 762         }
 763
 764       /* We compare with the serial of the last time we mapped the
 765        * window to avoid refetching properties that we set ourselves
 766        */
 767       if (toplevel &&
 768           xevent->xproperty.serial >= toplevel->map_serial)
 769         {
 770           if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"))
 771             gdk_check_wm_state_changed (window);
 772
 773           if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"))
 774             gdk_check_wm_desktop_changed (window);
 775         }
 776
 777       if (window->event_mask & GDK_PROPERTY_CHANGE_MASK)
 778         {
 779           event->property.type = GDK_PROPERTY_NOTIFY;
 780           event->property.window = window;
 781           event->property.atom = gdk_x11_xatom_to_atom_for_display (display, xevent->xproperty.atom);
 782           event->property.time = xevent->xproperty.time;
 783           event->property.state = xevent->xproperty.state;
 784         }
 785       else
 786         return_val = FALSE;
 787
 788       break;
 789
 790     case SelectionClear:
 791       GDK_NOTE (EVENTS,
 792                 g_message ("selection clear:\twindow: %ld",
 793                            xevent->xproperty.window));
 794
 795       if (_gdk_x11_selection_filter_clear_event (&xevent->xselectionclear))
 796         {
 797           event->selection.type = GDK_SELECTION_CLEAR;
 798           event->selection.window = window;
 799           event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionclear.selection);
 800           event->selection.time = xevent->xselectionclear.time;
 801         }
 802       else
 803         return_val = FALSE;
 804
 805       break;
 806
 807     case SelectionRequest:
 808       GDK_NOTE (EVENTS,
 809                 g_message ("selection request:\twindow: %ld",
 810                            xevent->xproperty.window));
 811
 812       event->selection.type = GDK_SELECTION_REQUEST;
 813       event->selection.window = window;
 814       event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.selection);
 815       event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.target);
 816       event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.property);
 817       if (xevent->xselectionrequest.requestor != None)
 818         event->selection.requestor = gdk_x11_window_foreign_new_for_display (display,
 819                                                                              xevent->xselectionrequest.requestor);
 820       else
 821         event->selection.requestor = NULL;
 822       event->selection.time = xevent->xselectionrequest.time;
 823
 824       break;
 825
 826     case SelectionNotify:
 827       GDK_NOTE (EVENTS,
 828                 g_message ("selection notify:\twindow: %ld",
 829                            xevent->xproperty.window));
 830
 831       event->selection.type = GDK_SELECTION_NOTIFY;
 832       event->selection.window = window;
 833       event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.selection);
 834       event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.target);
 835       if (xevent->xselection.property == None)
 836         event->selection.property = GDK_NONE;
 837       else
 838         event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.property);
 839       event->selection.time = xevent->xselection.time;
 840
 841       break;
 842
 843     case ColormapNotify:
 844       GDK_NOTE (EVENTS,
 845                 g_message ("colormap notify:\twindow: %ld",
 846                            xevent->xcolormap.window));
 847
 848       /* Not currently handled */
 849       return_val = FALSE;
 850       break;
 851
 852     case ClientMessage:
 853       GDK_NOTE (EVENTS,
 854                 g_message ("client message:\twindow: %ld",
 855                            xevent->xclient.window));
 856
 857       /* Not currently handled */
 858       return_val = FALSE;
 859       break;
 860
 861     case MappingNotify:
 862       GDK_NOTE (EVENTS,
 863                 g_message ("mapping notify"));
 864
 865       /* Let XLib know that there is a new keyboard mapping.
 866        */
 867       XRefreshKeyboardMapping (&xevent->xmapping);
 868       _gdk_x11_keymap_keys_changed (display);
 869       return_val = FALSE;
 870       break;
 871
 872     default:
 873 #ifdef HAVE_XFIXES
 874       if (xevent->type - display_x11->xfixes_event_base == XFixesSelectionNotify)
 875         {
 876           XFixesSelectionNotifyEvent *selection_notify = (XFixesSelectionNotifyEvent *)xevent;
 877
 878           _gdk_x11_screen_process_owner_change (screen, xevent);
 879
 880           event->owner_change.type = GDK_OWNER_CHANGE;
 881           event->owner_change.window = window;
 882           if (selection_notify->owner != None)
 883             event->owner_change.owner = gdk_x11_window_foreign_new_for_display (display,
 884                                                                                 selection_notify->owner);
 885           else
 886             event->owner_change.owner = NULL;
 887           event->owner_change.reason = selection_notify->subtype;
 888           event->owner_change.selection =
 889             gdk_x11_xatom_to_atom_for_display (display,
 890                                                selection_notify->selection);
 891           event->owner_change.time = selection_notify->timestamp;
 892           event->owner_change.selection_time = selection_notify->selection_timestamp;
 893
 894           return_val = TRUE;
 895         }
 896       else
 897 #endif
 898 #ifdef HAVE_RANDR
 899       if (xevent->type - display_x11->xrandr_event_base == RRScreenChangeNotify ||
 900           xevent->type - display_x11->xrandr_event_base == RRNotify)
 901         {
 902           if (screen)
 903             _gdk_x11_screen_size_changed (screen, xevent);
 904         }
 905       else
 906 #endif
 907 #if defined(HAVE_XCOMPOSITE) && defined (HAVE_XDAMAGE) && defined (HAVE_XFIXES)
 908       if (display_x11->have_xdamage && window && window->composited &&
 909           xevent->type == display_x11->xdamage_event_base + XDamageNotify &&
 910           ((XDamageNotifyEvent *) xevent)->damage == window_impl->damage)
 911         {
 912           XDamageNotifyEvent *damage_event = (XDamageNotifyEvent *) xevent;
 913           XserverRegion repair;
 914           GdkRectangle rect;
 915
 916           rect.x = window->x + damage_event->area.x;
 917           rect.y = window->y + damage_event->area.y;
 918           rect.width = damage_event->area.width;
 919           rect.height = damage_event->area.height;
 920
 921           repair = XFixesCreateRegion (display_x11->xdisplay,
 922                                        &damage_event->area, 1);
 923           XDamageSubtract (display_x11->xdisplay,
 924                            window_impl->damage,
 925                            repair, None);
 926           XFixesDestroyRegion (display_x11->xdisplay, repair);
 927
 928           if (window->parent != NULL)
 929            _gdk_x11_window_process_expose (window->parent,
 930                                            damage_event->serial, &rect);
 931
 932           return_val = TRUE;
 933         }
 934       else
 935 #endif
 936 #ifdef HAVE_XKB
 937       if (xevent->type == display_x11->xkb_event_type)
 938         {
 939           XkbEvent *xkb_event = (XkbEvent *) xevent;
 940
 941           switch (xkb_event->any.xkb_type)
 942             {
 943             case XkbNewKeyboardNotify:
 944             case XkbMapNotify:
 945               _gdk_x11_keymap_keys_changed (display);
 946
 947               return_val = FALSE;
 948               break;
 949
 950             case XkbStateNotify:
 951               _gdk_x11_keymap_state_changed (display, xevent);
 952               break;
 953             }
 954         }
 955       else
 956 #endif
 957         return_val = FALSE;
 958     }
 959
 960  done:
 961   if (return_val)
 962     {
 963       if (event->any.window)
 964         g_object_ref (event->any.window);
 965     }
 966   else
 967     {
 968       /* Mark this event as having no resources to be freed */
 969       event->any.window = NULL;
 970       event->any.type = GDK_NOTHING;
 971     }
 972
 973   if (window)
 974     g_object_unref (window);
 975
 976   return return_val;
 977 }
 978
 979 GdkFilterReturn
 980 _gdk_wm_protocols_filter (GdkXEvent *xev,
 981                           GdkEvent  *event,
 982                           gpointer   data)
 983 {
 984   XEvent *xevent = (XEvent *)xev;
 985   GdkWindow *win = event->any.window;
 986   GdkDisplay *display;
 987   Atom atom;
 988
 989   if (!GDK_IS_X11_WINDOW (win))
 990     return GDK_FILTER_CONTINUE;
 991
 992   if (xevent->type != ClientMessage)
 993     return GDK_FILTER_CONTINUE;
 994
 995   display = GDK_WINDOW_DISPLAY (win);
 996
 997   if (xevent->xclient.message_type != gdk_x11_get_xatom_by_name_for_display (display, "WM_PROTOCOLS"))
 998     return GDK_FILTER_CONTINUE;
 999
1000   atom = (Atom) xevent->xclient.data.l[0];
1001
1002   if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW"))
1003     {
1004   /* The delete window request specifies a window
1005    *  to delete. We don't actually destroy the
1006    *  window because "it is only a request". (The
1007    *  window might contain vital data that the
1008    *  program does not want destroyed). Instead
1009    *  the event is passed along to the program,
1010    *  which should then destroy the window.
1011    */
1012       GDK_NOTE (EVENTS,
1013                 g_message ("delete window:\t\twindow: %ld",
1014                            xevent->xclient.window));
1015
1016       event->any.type = GDK_DELETE;
1017
1018       gdk_x11_window_set_user_time (win, xevent->xclient.data.l[1]);
1019
1020       return GDK_FILTER_TRANSLATE;
1021     }
1022   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_TAKE_FOCUS"))
1023     {
1024       GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
1025
1026       /* There is no way of knowing reliably whether we are viewable;
1027        * _gdk_x11_set_input_focus_safe() traps errors asynchronously.
1028        */
1029       if (toplevel && win->accept_focus)
1030         _gdk_x11_set_input_focus_safe (display, toplevel->focus_window,
1031                                        RevertToParent,
1032                                        xevent->xclient.data.l[1]);
1033
1034       return GDK_FILTER_REMOVE;
1035     }
1036   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING") &&
1037            !_gdk_x11_display_is_root_window (display,
1038                                              xevent->xclient.window))
1039     {
1040       XClientMessageEvent xclient = xevent->xclient;
1041
1042       xclient.window = GDK_WINDOW_XROOTWIN (win);
1043       XSendEvent (GDK_WINDOW_XDISPLAY (win),
1044                   xclient.window,
1045                   False,
1046                   SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xclient);
1047
1048       return GDK_FILTER_REMOVE;
1049     }
1050   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_SYNC_REQUEST") &&
1051            GDK_X11_DISPLAY (display)->use_sync)
1052     {
1053       GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
1054       if (toplevel)
1055         {
1056 #ifdef HAVE_XSYNC
1057           XSyncIntsToValue (&toplevel->pending_counter_value,
1058                             xevent->xclient.data.l[2],
1059                             xevent->xclient.data.l[3]);
1060 #endif
1061         }
1062       return GDK_FILTER_REMOVE;
1063     }
1064
1065   return GDK_FILTER_CONTINUE;
1066 }
1067
1068 static void
1069 gdk_event_init (GdkDisplay *display)
1070 {
1071   GdkX11Display *display_x11;
1072   GdkDeviceManager *device_manager;
1073
1074   display_x11 = GDK_X11_DISPLAY (display);
1075   display_x11->event_source = gdk_x11_event_source_new (display);
1076
1077   gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
1078                                        GDK_EVENT_TRANSLATOR (display));
1079
1080   device_manager = gdk_display_get_device_manager (display);
1081   gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
1082                                         GDK_EVENT_TRANSLATOR (device_manager));
1083 }
1084
1085 static void
1086 gdk_x11_display_init_input (GdkDisplay *display)
1087 {
1088   GdkX11Display *display_x11;
1089   GdkDeviceManager *device_manager;
1090   GdkDevice *device;
1091   GList *list, *l;
1092
1093   display_x11 = GDK_X11_DISPLAY (display);
1094   device_manager = gdk_display_get_device_manager (display);
1095
1096   /* For backwards compatibility, just add
1097    * floating devices that are not keyboards.
1098    */
1099   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING);
1100
1101   for (l = list; l; l = l->next)
1102     {
1103       device = l->data;
1104
1105       if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
1106         continue;
1107
1108       display_x11->input_devices = g_list_prepend (display_x11->input_devices,
1109                                                    g_object_ref (l->data));
1110     }
1111
1112   g_list_free (list);
1113
1114   /* Now set "core" pointer to the first
1115    * master device that is a pointer.
1116    */
1117   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
1118
1119   for (l = list; l; l = l->next)
1120     {
1121       device = l->data;
1122
1123       if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE)
1124         continue;
1125
1126       display->core_pointer = device;
1127       break;
1128     }
1129
1130   /* Add the core pointer to the devices list */
1131   display_x11->input_devices = g_list_prepend (display_x11->input_devices,
1132                                                g_object_ref (display->core_pointer));
1133
1134   g_list_free (list);
1135 }
1136
1137 static void
1138 set_sm_client_id (GdkDisplay  *display,
1139                   const gchar *sm_client_id)
1140 {
1141   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1142
1143   if (gdk_display_is_closed (display))
1144     return;
1145
1146   if (sm_client_id && strcmp (sm_client_id, ""))
1147     XChangeProperty (display_x11->xdisplay, display_x11->leader_window,
1148                      gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"),
1149                      XA_STRING, 8, PropModeReplace, (guchar *)sm_client_id,
1150                      strlen (sm_client_id));
1151   else
1152     XDeleteProperty (display_x11->xdisplay, display_x11->leader_window,
1153                      gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"));
1154 }
1155
1156 GdkDisplay *
1157 _gdk_x11_display_open (const gchar *display_name)
1158 {
1159   Display *xdisplay;
1160   GdkDisplay *display;
1161   GdkX11Display *display_x11;
1162   GdkWindowAttr attr;
1163   gint argc;
1164   gchar *argv[1];
1165
1166   XClassHint *class_hint;
1167   gulong pid;
1168   gint i;
1169   gint ignore;
1170   gint maj, min;
1171
1172   xdisplay = XOpenDisplay (display_name);
1173   if (!xdisplay)
1174     return NULL;
1175
1176   display = g_object_new (GDK_TYPE_X11_DISPLAY, NULL);
1177   display_x11 = GDK_X11_DISPLAY (display);
1178
1179   display_x11->xdisplay = xdisplay;
1180
1181 #ifdef HAVE_X11R6
1182   /* Set up handlers for Xlib internal connections */
1183   XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
1184 #endif /* HAVE_X11R6 */
1185
1186   _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
1187
1188   /* RandR must be initialized before we initialize the screens */
1189   display_x11->have_randr12 = FALSE;
1190   display_x11->have_randr13 = FALSE;
1191 #ifdef HAVE_RANDR
1192   if (XRRQueryExtension (display_x11->xdisplay,
1193                          &display_x11->xrandr_event_base, &ignore))
1194   {
1195       int major, minor;
1196
1197       XRRQueryVersion (display_x11->xdisplay, &major, &minor);
1198
1199       if ((major == 1 && minor >= 2) || major > 1) {
1200           display_x11->have_randr12 = TRUE;
1201           if (minor >= 3 || major > 1)
1202               display_x11->have_randr13 = TRUE;
1203       }
1204
1205        gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents);
1206   }
1207 #endif
1208
1209   /* initialize the display's screens */
1210   display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
1211   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1212     display_x11->screens[i] = _gdk_x11_screen_new (display, i);
1213
1214   /* We need to initialize events after we have the screen
1215    * structures in places
1216    */
1217   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1218     _gdk_x11_screen_init_events (display_x11->screens[i]);
1219
1220   /*set the default screen */
1221   display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
1222
1223   display->device_manager = _gdk_x11_device_manager_new (display);
1224
1225   gdk_event_init (display);
1226
1227   attr.window_type = GDK_WINDOW_TOPLEVEL;
1228   attr.wclass = GDK_INPUT_OUTPUT;
1229   attr.x = 10;
1230   attr.y = 10;
1231   attr.width = 10;
1232   attr.height = 10;
1233   attr.event_mask = 0;
1234
1235   display_x11->leader_gdk_window = gdk_window_new (GDK_X11_SCREEN (display_x11->default_screen)->root_window,
1236                                                    &attr, GDK_WA_X | GDK_WA_Y);
1237   (_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
1238
1239   display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
1240
1241   display_x11->leader_window_title_set = FALSE;
1242
1243 #ifdef HAVE_XFIXES
1244   if (XFixesQueryExtension (display_x11->xdisplay,
1245                             &display_x11->xfixes_event_base,
1246                             &ignore))
1247     {
1248       display_x11->have_xfixes = TRUE;
1249
1250       gdk_x11_register_standard_event_type (display,
1251                                             display_x11->xfixes_event_base,
1252                                             XFixesNumberEvents);
1253     }
1254   else
1255 #endif
1256     display_x11->have_xfixes = FALSE;
1257
1258 #ifdef HAVE_XCOMPOSITE
1259   if (XCompositeQueryExtension (display_x11->xdisplay,
1260                                 &ignore, &ignore))
1261     {
1262       int major, minor;
1263
1264       XCompositeQueryVersion (display_x11->xdisplay, &major, &minor);
1265
1266       /* Prior to Composite version 0.4, composited windows clipped their
1267        * parents, so you had to use IncludeInferiors to draw to the parent
1268        * This isn't useful for our purposes, so require 0.4
1269        */
1270       display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4);
1271     }
1272   else
1273 #endif
1274     display_x11->have_xcomposite = FALSE;
1275
1276 #ifdef HAVE_XDAMAGE
1277   if (XDamageQueryExtension (display_x11->xdisplay,
1278                              &display_x11->xdamage_event_base,
1279                              &ignore))
1280     {
1281       display_x11->have_xdamage = TRUE;
1282
1283       gdk_x11_register_standard_event_type (display,
1284                                             display_x11->xdamage_event_base,
1285                                             XDamageNumberEvents);
1286     }
1287   else
1288 #endif
1289     display_x11->have_xdamage = FALSE;
1290
1291   display_x11->have_shapes = FALSE;
1292   display_x11->have_input_shapes = FALSE;
1293
1294   if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &display_x11->shape_event_base, &ignore))
1295     {
1296       display_x11->have_shapes = TRUE;
1297 #ifdef ShapeInput
1298       if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min))
1299         display_x11->have_input_shapes = (maj == 1 && min >= 1);
1300 #endif
1301     }
1302
1303   display_x11->trusted_client = TRUE;
1304   {
1305     Window root, child;
1306     int rootx, rooty, winx, winy;
1307     unsigned int xmask;
1308
1309     gdk_x11_display_error_trap_push (display);
1310     XQueryPointer (display_x11->xdisplay,
1311                    GDK_X11_SCREEN (display_x11->default_screen)->xroot_window,
1312                    &root, &child, &rootx, &rooty, &winx, &winy, &xmask);
1313     if (G_UNLIKELY (gdk_x11_display_error_trap_pop (display) == BadWindow))
1314       {
1315         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));
1316         display_x11->trusted_client = FALSE;
1317       }
1318   }
1319
1320   if (g_getenv ("GDK_SYNCHRONIZE"))
1321     XSynchronize (display_x11->xdisplay, True);
1322
1323   class_hint = XAllocClassHint();
1324   class_hint->res_name = g_get_prgname ();
1325
1326   class_hint->res_class = (char *)gdk_get_program_class ();
1327
1328   /* XmbSetWMProperties sets the RESOURCE_NAME environment variable
1329    * from argv[0], so we just synthesize an argument array here.
1330    */
1331   argc = 1;
1332   argv[0] = g_get_prgname ();
1333
1334   XmbSetWMProperties (display_x11->xdisplay,
1335                       display_x11->leader_window,
1336                       NULL, NULL, argv, argc, NULL, NULL,
1337                       class_hint);
1338   XFree (class_hint);
1339
1340   if (gdk_sm_client_id)
1341     set_sm_client_id (display, gdk_sm_client_id);
1342
1343   pid = getpid ();
1344   XChangeProperty (display_x11->xdisplay,
1345                    display_x11->leader_window,
1346                    gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
1347                    XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
1348
1349   /* We don't yet know a valid time. */
1350   display_x11->user_time = 0;
1351
1352 #ifdef HAVE_XKB
1353   {
1354     gint xkb_major = XkbMajorVersion;
1355     gint xkb_minor = XkbMinorVersion;
1356     if (XkbLibraryVersion (&xkb_major, &xkb_minor))
1357       {
1358         xkb_major = XkbMajorVersion;
1359         xkb_minor = XkbMinorVersion;
1360
1361         if (XkbQueryExtension (display_x11->xdisplay,
1362                                NULL, &display_x11->xkb_event_type, NULL,
1363                                &xkb_major, &xkb_minor))
1364           {
1365             Bool detectable_autorepeat_supported;
1366
1367             display_x11->use_xkb = TRUE;
1368
1369             XkbSelectEvents (display_x11->xdisplay,
1370                              XkbUseCoreKbd,
1371                              XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
1372                              XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
1373
1374             /* keep this in sync with _gdk_x11_keymap_state_changed() */
1375             XkbSelectEventDetails (display_x11->xdisplay,
1376                                    XkbUseCoreKbd, XkbStateNotify,
1377                                    XkbAllStateComponentsMask,
1378                                    XkbGroupLockMask|XkbModifierLockMask);
1379
1380             XkbSetDetectableAutoRepeat (display_x11->xdisplay,
1381                                         True,
1382                                         &detectable_autorepeat_supported);
1383
1384             GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
1385                                        detectable_autorepeat_supported ?
1386                                        "supported" : "not supported"));
1387
1388             display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
1389           }
1390       }
1391   }
1392 #endif
1393
1394   display_x11->use_sync = FALSE;
1395 #ifdef HAVE_XSYNC
1396   {
1397     int major, minor;
1398     int error_base, event_base;
1399
1400     if (XSyncQueryExtension (display_x11->xdisplay,
1401                              &event_base, &error_base) &&
1402         XSyncInitialize (display_x11->xdisplay,
1403                          &major, &minor))
1404       display_x11->use_sync = TRUE;
1405   }
1406 #endif
1407
1408   gdk_x11_display_init_input (display);
1409
1410   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1411     _gdk_x11_screen_setup (display_x11->screens[i]);
1412
1413   g_signal_emit_by_name (display, "opened");
1414   g_signal_emit_by_name (gdk_display_manager_get (), "display-opened", display);
1415
1416   return display;
1417 }
1418
1419 #ifdef HAVE_X11R6
1420 /*
1421  * XLib internal connection handling
1422  */
1423 typedef struct _GdkInternalConnection GdkInternalConnection;
1424
1425 struct _GdkInternalConnection
1426 {
1427   gint           fd;
1428   GSource       *source;
1429   Display       *display;
1430 };
1431
1432 static gboolean
1433 process_internal_connection (GIOChannel  *gioc,
1434                              GIOCondition cond,
1435                              gpointer     data)
1436 {
1437   GdkInternalConnection *connection = (GdkInternalConnection *)data;
1438
1439   GDK_THREADS_ENTER ();
1440
1441   XProcessInternalConnection ((Display*)connection->display, connection->fd);
1442
1443   GDK_THREADS_LEAVE ();
1444
1445   return TRUE;
1446 }
1447
1448 static gulong
1449 gdk_x11_display_get_next_serial (GdkDisplay *display)
1450 {
1451   return NextRequest (GDK_DISPLAY_XDISPLAY (display));
1452 }
1453
1454
1455 static GdkInternalConnection *
1456 gdk_add_connection_handler (Display *display,
1457                             guint    fd)
1458 {
1459   GIOChannel *io_channel;
1460   GdkInternalConnection *connection;
1461
1462   connection = g_new (GdkInternalConnection, 1);
1463
1464   connection->fd = fd;
1465   connection->display = display;
1466
1467   io_channel = g_io_channel_unix_new (fd);
1468
1469   connection->source = g_io_create_watch (io_channel, G_IO_IN);
1470   g_source_set_callback (connection->source,
1471                          (GSourceFunc)process_internal_connection, connection, NULL);
1472   g_source_attach (connection->source, NULL);
1473
1474   g_io_channel_unref (io_channel);
1475
1476   return connection;
1477 }
1478
1479 static void
1480 gdk_remove_connection_handler (GdkInternalConnection *connection)
1481 {
1482   g_source_destroy (connection->source);
1483   g_free (connection);
1484 }
1485
1486 static void
1487 gdk_internal_connection_watch (Display  *display,
1488                                XPointer  arg,
1489                                gint      fd,
1490                                gboolean  opening,
1491                                XPointer *watch_data)
1492 {
1493   if (opening)
1494     *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
1495   else
1496     gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
1497 }
1498 #endif /* HAVE_X11R6 */
1499
1500 static G_CONST_RETURN gchar *
1501 gdk_x11_display_get_name (GdkDisplay *display)
1502 {
1503   return (gchar *) DisplayString (GDK_X11_DISPLAY (display)->xdisplay);
1504 }
1505
1506 static gint
1507 gdk_x11_display_get_n_screens (GdkDisplay *display)
1508 {
1509   return ScreenCount (GDK_X11_DISPLAY (display)->xdisplay);
1510 }
1511
1512 static GdkScreen *
1513 gdk_x11_display_get_screen (GdkDisplay *display,
1514                             gint        screen_num)
1515 {
1516   g_return_val_if_fail (ScreenCount (GDK_X11_DISPLAY (display)->xdisplay) > screen_num, NULL);
1517
1518   return GDK_X11_DISPLAY (display)->screens[screen_num];
1519 }
1520
1521 static GdkScreen *
1522 gdk_x11_display_get_default_screen (GdkDisplay *display)
1523 {
1524   return GDK_X11_DISPLAY (display)->default_screen;
1525 }
1526
1527 gboolean
1528 _gdk_x11_display_is_root_window (GdkDisplay *display,
1529                                  Window      xroot_window)
1530 {
1531   GdkX11Display *display_x11;
1532   gint i;
1533
1534   display_x11 = GDK_X11_DISPLAY (display);
1535
1536   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1537     {
1538       if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
1539         return TRUE;
1540     }
1541   return FALSE;
1542 }
1543
1544 struct XPointerUngrabInfo {
1545   GdkDisplay *display;
1546   guint32 time;
1547 };
1548
1549 static void
1550 device_grab_update_callback (GdkDisplay *display,
1551                              gpointer    data,
1552                              gulong      serial)
1553 {
1554   GdkDevice *device = data;
1555
1556   _gdk_display_device_grab_update (display, device, NULL, serial);
1557 }
1558
1559 #define XSERVER_TIME_IS_LATER(time1, time2)                        \
1560   ( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) ||  \
1561     (( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 ))     \
1562   )
1563
1564 void
1565 _gdk_x11_display_update_grab_info (GdkDisplay *display,
1566                                    GdkDevice  *device,
1567                                    gint        status)
1568 {
1569   if (status == GrabSuccess)
1570     _gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
1571 }
1572
1573 void
1574 _gdk_x11_display_update_grab_info_ungrab (GdkDisplay *display,
1575                                           GdkDevice  *device,
1576                                           guint32     time,
1577                                           gulong      serial)
1578 {
1579   GdkDeviceGrabInfo *grab;
1580
1581   XFlush (GDK_DISPLAY_XDISPLAY (display));
1582
1583   grab = _gdk_display_get_last_device_grab (display, device);
1584   if (grab &&
1585       (time == GDK_CURRENT_TIME ||
1586        grab->time == GDK_CURRENT_TIME ||
1587        !XSERVER_TIME_IS_LATER (grab->time, time)))
1588     {
1589       grab->serial_end = serial;
1590       _gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
1591     }
1592 }
1593
1594 static void
1595 gdk_x11_display_beep (GdkDisplay *display)
1596 {
1597 #ifdef HAVE_XKB
1598   XkbBell (GDK_DISPLAY_XDISPLAY (display), None, 0, None);
1599 #else
1600   XBell (GDK_DISPLAY_XDISPLAY (display), 0);
1601 #endif
1602 }
1603
1604 static void
1605 gdk_x11_display_sync (GdkDisplay *display)
1606 {
1607   XSync (GDK_DISPLAY_XDISPLAY (display), False);
1608 }
1609
1610 static void
1611 gdk_x11_display_flush (GdkDisplay *display)
1612 {
1613   if (!display->closed)
1614     XFlush (GDK_DISPLAY_XDISPLAY (display));
1615 }
1616
1617 static gboolean
1618 gdk_x11_display_has_pending (GdkDisplay *display)
1619 {
1620   return XPending (GDK_DISPLAY_XDISPLAY (display));
1621 }
1622
1623 static GdkWindow *
1624 gdk_x11_display_get_default_group (GdkDisplay *display)
1625 {
1626   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1627
1628   return GDK_X11_DISPLAY (display)->leader_gdk_window;
1629 }
1630
1631 /**
1632  * gdk_x11_display_grab:
1633  * @display: a #GdkDisplay
1634  *
1635  * Call XGrabServer() on @display.
1636  * To ungrab the display again, use gdk_x11_display_ungrab().
1637  *
1638  * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
1639  *
1640  * Since: 2.2
1641  **/
1642 void
1643 gdk_x11_display_grab (GdkDisplay *display)
1644 {
1645   GdkX11Display *display_x11;
1646
1647   g_return_if_fail (GDK_IS_DISPLAY (display));
1648
1649   display_x11 = GDK_X11_DISPLAY (display);
1650
1651   if (display_x11->grab_count == 0)
1652     XGrabServer (display_x11->xdisplay);
1653   display_x11->grab_count++;
1654 }
1655
1656 /**
1657  * gdk_x11_display_ungrab:
1658  * @display: a #GdkDisplay
1659  *
1660  * Ungrab @display after it has been grabbed with
1661  * gdk_x11_display_grab().
1662  *
1663  * Since: 2.2
1664  **/
1665 void
1666 gdk_x11_display_ungrab (GdkDisplay *display)
1667 {
1668   GdkX11Display *display_x11;
1669
1670   g_return_if_fail (GDK_IS_DISPLAY (display));
1671
1672   display_x11 = GDK_X11_DISPLAY (display);;
1673   g_return_if_fail (display_x11->grab_count > 0);
1674
1675   display_x11->grab_count--;
1676   if (display_x11->grab_count == 0)
1677     {
1678       XUngrabServer (display_x11->xdisplay);
1679       XFlush (display_x11->xdisplay);
1680     }
1681 }
1682
1683 static void
1684 gdk_x11_display_dispose (GObject *object)
1685 {
1686   GdkDisplay *display = GDK_DISPLAY (object);
1687   GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
1688   gint           i;
1689
1690   _gdk_x11_display_manager_remove_display (gdk_display_manager_get (), display);
1691
1692   g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL);
1693
1694   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1695     _gdk_screen_close (display_x11->screens[i]);
1696
1697   if (display_x11->event_source)
1698     {
1699       g_source_destroy (display_x11->event_source);
1700       g_source_unref (display_x11->event_source);
1701       display_x11->event_source = NULL;
1702     }
1703
1704   G_OBJECT_CLASS (gdk_x11_display_parent_class)->dispose (object);
1705 }
1706
1707 static void
1708 gdk_x11_display_finalize (GObject *object)
1709 {
1710   GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
1711   gint           i;
1712
1713   /* Keymap */
1714   if (display_x11->keymap)
1715     g_object_unref (display_x11->keymap);
1716
1717   /* Free motif Dnd */
1718   if (display_x11->motif_target_lists)
1719     {
1720       for (i = 0; i < display_x11->motif_n_target_lists; i++)
1721         g_list_free (display_x11->motif_target_lists[i]);
1722       g_free (display_x11->motif_target_lists);
1723     }
1724
1725   _gdk_x11_cursor_display_finalize (GDK_DISPLAY (display_x11));
1726
1727   /* Atom Hashtable */
1728   g_hash_table_destroy (display_x11->atom_from_virtual);
1729   g_hash_table_destroy (display_x11->atom_to_virtual);
1730
1731   /* Leader Window */
1732   XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
1733
1734   /* List of event window extraction functions */
1735   g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
1736   g_slist_free (display_x11->event_types);
1737
1738   /* input GdkDevice list */
1739   g_list_foreach (display_x11->input_devices, (GFunc) g_object_unref, NULL);
1740   g_list_free (display_x11->input_devices);
1741
1742   /* input GdkWindow list */
1743   g_list_foreach (display_x11->input_windows, (GFunc) g_free, NULL);
1744   g_list_free (display_x11->input_windows);
1745
1746   /* Free all GdkScreens */
1747   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1748     g_object_unref (display_x11->screens[i]);
1749   g_free (display_x11->screens);
1750
1751   g_free (display_x11->startup_notification_id);
1752
1753   /* X ID hashtable */
1754   g_hash_table_destroy (display_x11->xid_ht);
1755
1756   XCloseDisplay (display_x11->xdisplay);
1757
1758   /* error traps */
1759   while (display_x11->error_traps != NULL)
1760     {
1761       GdkErrorTrap *trap = display_x11->error_traps->data;
1762
1763       display_x11->error_traps =
1764         g_slist_delete_link (display_x11->error_traps,
1765                              display_x11->error_traps);
1766
1767       if (trap->end_sequence == 0)
1768         g_warning ("Display finalized with an unpopped error trap");
1769
1770       g_slice_free (GdkErrorTrap, trap);
1771     }
1772
1773   G_OBJECT_CLASS (gdk_x11_display_parent_class)->finalize (object);
1774 }
1775
1776 /**
1777  * gdk_x11_lookup_xdisplay:
1778  * @xdisplay: a pointer to an X Display
1779  *
1780  * Find the #GdkDisplay corresponding to @display, if any exists.
1781  *
1782  * Return value: (transfer none): the #GdkDisplay, if found, otherwise %NULL.
1783  *
1784  * Since: 2.2
1785  **/
1786 GdkDisplay *
1787 gdk_x11_lookup_xdisplay (Display *xdisplay)
1788 {
1789   GSList *list, *l;
1790   GdkDisplay *display;
1791
1792   display = NULL;
1793
1794   list = gdk_display_manager_list_displays (gdk_display_manager_get ());
1795
1796   for (l = list; l; l = l->next)
1797     {
1798       if (GDK_DISPLAY_XDISPLAY (l->data) == xdisplay)
1799         {
1800           display = l->data;
1801           break;
1802         }
1803     }
1804
1805   g_slist_free (list);
1806
1807   return display;
1808 }
1809
1810 /**
1811  * _gdk_x11_display_screen_for_xrootwin:
1812  * @display: a #GdkDisplay
1813  * @xrootwin: window ID for one of of the screen's of the display.
1814  *
1815  * Given the root window ID of one of the screen's of a #GdkDisplay,
1816  * finds the screen.
1817  *
1818  * Return value: (transfer none): the #GdkScreen corresponding to
1819  *     @xrootwin, or %NULL.
1820  **/
1821 GdkScreen *
1822 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
1823                                       Window      xrootwin)
1824 {
1825   gint i;
1826
1827   for (i = 0; i < ScreenCount (GDK_X11_DISPLAY (display)->xdisplay); i++)
1828     {
1829       GdkScreen *screen = gdk_display_get_screen (display, i);
1830       if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
1831         return screen;
1832     }
1833
1834   return NULL;
1835 }
1836
1837 /**
1838  * gdk_x11_display_get_xdisplay: (skip)
1839  * @display: a #GdkDisplay
1840  * @returns: an X display.
1841  *
1842  * Returns the X display of a #GdkDisplay.
1843  *
1844  * Since: 2.2
1845  */
1846 Display *
1847 gdk_x11_display_get_xdisplay (GdkDisplay *display)
1848 {
1849   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1850   return GDK_X11_DISPLAY (display)->xdisplay;
1851 }
1852
1853 void
1854 _gdk_x11_display_make_default (GdkDisplay *display)
1855 {
1856   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1857   const gchar *startup_id;
1858
1859   g_free (display_x11->startup_notification_id);
1860   display_x11->startup_notification_id = NULL;
1861
1862   startup_id = g_getenv ("DESKTOP_STARTUP_ID");
1863   if (startup_id && *startup_id != '\0')
1864     {
1865       if (!g_utf8_validate (startup_id, -1, NULL))
1866         g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
1867       else
1868         gdk_x11_display_set_startup_notification_id (display, startup_id);
1869
1870       /* Clear the environment variable so it won't be inherited by
1871        * child processes and confuse things.
1872        */
1873       g_unsetenv ("DESKTOP_STARTUP_ID");
1874     }
1875 }
1876
1877 static void
1878 broadcast_xmessage (GdkDisplay *display,
1879                     const char *message_type,
1880                     const char *message_type_begin,
1881                     const char *message)
1882 {
1883   Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
1884   GdkScreen *screen = gdk_display_get_default_screen (display);
1885   GdkWindow *root_window = gdk_screen_get_root_window (screen);
1886   Window xroot_window = GDK_WINDOW_XID (root_window);
1887
1888   Atom type_atom;
1889   Atom type_atom_begin;
1890   Window xwindow;
1891
1892   if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
1893     return;
1894
1895   {
1896     XSetWindowAttributes attrs;
1897
1898     attrs.override_redirect = True;
1899     attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
1900
1901     xwindow =
1902       XCreateWindow (xdisplay,
1903                      xroot_window,
1904                      -100, -100, 1, 1,
1905                      0,
1906                      CopyFromParent,
1907                      CopyFromParent,
1908                      (Visual *)CopyFromParent,
1909                      CWOverrideRedirect | CWEventMask,
1910                      &attrs);
1911   }
1912
1913   type_atom = gdk_x11_get_xatom_by_name_for_display (display,
1914                                                      message_type);
1915   type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
1916                                                            message_type_begin);
1917
1918   {
1919     XClientMessageEvent xclient;
1920     const char *src;
1921     const char *src_end;
1922     char *dest;
1923     char *dest_end;
1924
1925                 memset(&xclient, 0, sizeof (xclient));
1926     xclient.type = ClientMessage;
1927     xclient.message_type = type_atom_begin;
1928     xclient.display =xdisplay;
1929     xclient.window = xwindow;
1930     xclient.format = 8;
1931
1932     src = message;
1933     src_end = message + strlen (message) + 1; /* +1 to include nul byte */
1934
1935     while (src != src_end)
1936       {
1937         dest = &xclient.data.b[0];
1938         dest_end = dest + 20;
1939
1940         while (dest != dest_end &&
1941                src != src_end)
1942           {
1943             *dest = *src;
1944             ++dest;
1945             ++src;
1946           }
1947
1948         while (dest != dest_end)
1949           {
1950             *dest = 0;
1951             ++dest;
1952           }
1953
1954         XSendEvent (xdisplay,
1955                     xroot_window,
1956                     False,
1957                     PropertyChangeMask,
1958                     (XEvent *)&xclient);
1959
1960         xclient.message_type = type_atom;
1961       }
1962   }
1963
1964   XDestroyWindow (xdisplay, xwindow);
1965   XFlush (xdisplay);
1966 }
1967
1968 /**
1969  * gdk_x11_display_broadcast_startup_message:
1970  * @display: a #GdkDisplay
1971  * @message_type: startup notification message type ("new", "change",
1972  * or "remove")
1973  * @...: a list of key/value pairs (as strings), terminated by a
1974  * %NULL key. (A %NULL value for a key will cause that key to be
1975  * skipped in the output.)
1976  *
1977  * Sends a startup notification message of type @message_type to
1978  * @display.
1979  *
1980  * This is a convenience function for use by code that implements the
1981  * freedesktop startup notification specification. Applications should
1982  * not normally need to call it directly. See the <ulink
1983  * url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">Startup
1984  * Notification Protocol specification</ulink> for
1985  * definitions of the message types and keys that can be used.
1986  *
1987  * Since: 2.12
1988  **/
1989 void
1990 gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
1991                                            const char *message_type,
1992                                            ...)
1993 {
1994   GString *message;
1995   va_list ap;
1996   const char *key, *value, *p;
1997
1998   message = g_string_new (message_type);
1999   g_string_append_c (message, ':');
2000
2001   va_start (ap, message_type);
2002   while ((key = va_arg (ap, const char *)))
2003     {
2004       value = va_arg (ap, const char *);
2005       if (!value)
2006         continue;
2007
2008       g_string_append_printf (message, " %s=\"", key);
2009       for (p = value; *p; p++)
2010         {
2011           switch (*p)
2012             {
2013             case ' ':
2014             case '"':
2015             case '\\':
2016               g_string_append_c (message, '\\');
2017               break;
2018             }
2019
2020           g_string_append_c (message, *p);
2021         }
2022       g_string_append_c (message, '\"');
2023     }
2024   va_end (ap);
2025
2026   broadcast_xmessage (display,
2027                       "_NET_STARTUP_INFO",
2028                       "_NET_STARTUP_INFO_BEGIN",
2029                       message->str);
2030
2031   g_string_free (message, TRUE);
2032 }
2033
2034 static void
2035 gdk_x11_display_notify_startup_complete (GdkDisplay  *display,
2036                                          const gchar *startup_id)
2037 {
2038   if (startup_id == NULL)
2039     {
2040       startup_id = GDK_X11_DISPLAY (display)->startup_notification_id;
2041       if (startup_id == NULL)
2042         return;
2043     }
2044
2045   gdk_x11_display_broadcast_startup_message (display, "remove",
2046                                              "ID", startup_id,
2047                                              NULL);
2048 }
2049
2050 static gboolean
2051 gdk_x11_display_supports_selection_notification (GdkDisplay *display)
2052 {
2053   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2054
2055   return display_x11->have_xfixes;
2056 }
2057
2058 static gboolean
2059 gdk_x11_display_request_selection_notification (GdkDisplay *display,
2060                                                 GdkAtom     selection)
2061
2062 {
2063 #ifdef HAVE_XFIXES
2064   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2065   Atom atom;
2066
2067   if (display_x11->have_xfixes)
2068     {
2069       atom = gdk_x11_atom_to_xatom_for_display (display,
2070                                                 selection);
2071       XFixesSelectSelectionInput (display_x11->xdisplay,
2072                                   display_x11->leader_window,
2073                                   atom,
2074                                   XFixesSetSelectionOwnerNotifyMask |
2075                                   XFixesSelectionWindowDestroyNotifyMask |
2076                                   XFixesSelectionClientCloseNotifyMask);
2077       return TRUE;
2078     }
2079   else
2080 #endif
2081     return FALSE;
2082 }
2083
2084 static gboolean
2085 gdk_x11_display_supports_clipboard_persistence (GdkDisplay *display)
2086 {
2087   Atom clipboard_manager;
2088
2089   /* It might make sense to cache this */
2090   clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
2091   return XGetSelectionOwner (GDK_X11_DISPLAY (display)->xdisplay, clipboard_manager) != None;
2092 }
2093
2094 static void
2095 gdk_x11_display_store_clipboard (GdkDisplay    *display,
2096                                  GdkWindow     *clipboard_window,
2097                                  guint32        time_,
2098                                  const GdkAtom *targets,
2099                                  gint           n_targets)
2100 {
2101   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2102   Atom clipboard_manager, save_targets;
2103
2104   g_return_if_fail (GDK_WINDOW_IS_X11 (clipboard_window));
2105
2106   clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
2107   save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
2108
2109   gdk_x11_display_error_trap_push (display);
2110
2111   if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
2112     {
2113       Atom property_name = None;
2114       Atom *xatoms;
2115       int i;
2116
2117       if (n_targets > 0)
2118         {
2119           property_name = gdk_x11_get_xatom_by_name_for_display (display, "GDK_SELECTION");
2120
2121           xatoms = g_new (Atom, n_targets);
2122           for (i = 0; i < n_targets; i++)
2123             xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
2124
2125           XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
2126                            property_name, XA_ATOM,
2127                            32, PropModeReplace, (guchar *)xatoms, n_targets);
2128           g_free (xatoms);
2129
2130         }
2131
2132       XConvertSelection (display_x11->xdisplay,
2133                          clipboard_manager, save_targets, property_name,
2134                          GDK_WINDOW_XID (clipboard_window), time_);
2135
2136     }
2137   gdk_x11_display_error_trap_pop_ignored (display);
2138
2139 }
2140
2141 /**
2142  * gdk_x11_display_get_user_time:
2143  * @display: a #GdkDisplay
2144  *
2145  * Returns the timestamp of the last user interaction on
2146  * @display. The timestamp is taken from events caused
2147  * by user interaction such as key presses or pointer
2148  * movements. See gdk_x11_window_set_user_time().
2149  *
2150  * Returns: the timestamp of the last user interaction
2151  *
2152  * Since: 2.8
2153  */
2154 guint32
2155 gdk_x11_display_get_user_time (GdkDisplay *display)
2156 {
2157   return GDK_X11_DISPLAY (display)->user_time;
2158 }
2159
2160 static gboolean
2161 gdk_x11_display_supports_shapes (GdkDisplay *display)
2162 {
2163   return GDK_X11_DISPLAY (display)->have_shapes;
2164 }
2165
2166 static gboolean
2167 gdk_x11_display_supports_input_shapes (GdkDisplay *display)
2168 {
2169   return GDK_X11_DISPLAY (display)->have_input_shapes;
2170 }
2171
2172
2173 /**
2174  * gdk_x11_display_get_startup_notification_id:
2175  * @display: a #GdkDisplay
2176  *
2177  * Gets the startup notification ID for a display.
2178  *
2179  * Returns: the startup notification ID for @display
2180  *
2181  * Since: 2.12
2182  */
2183 G_CONST_RETURN gchar *
2184 gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
2185 {
2186   return GDK_X11_DISPLAY (display)->startup_notification_id;
2187 }
2188
2189 /**
2190  * gdk_x11_display_set_startup_notification_id:
2191  * @display: a #GdkDisplay
2192  * @startup_id: the startup notification ID (must be valid utf8)
2193  *
2194  * Sets the startup notification ID for a display.
2195  *
2196  * This is usually taken from the value of the DESKTOP_STARTUP_ID
2197  * environment variable, but in some cases (such as the application not
2198  * being launched using exec()) it can come from other sources.
2199  *
2200  * If the ID contains the string "_TIME" then the portion following that
2201  * string is taken to be the X11 timestamp of the event that triggered
2202  * the application to be launched and the GDK current event time is set
2203  * accordingly.
2204  *
2205  * The startup ID is also what is used to signal that the startup is
2206  * complete (for example, when opening a window or when calling
2207  * gdk_notify_startup_complete()).
2208  *
2209  * Since: 3.0
2210  **/
2211 void
2212 gdk_x11_display_set_startup_notification_id (GdkDisplay  *display,
2213                                              const gchar *startup_id)
2214 {
2215   GdkX11Display *display_x11;
2216   gchar *time_str;
2217
2218   display_x11 = GDK_X11_DISPLAY (display);
2219
2220   g_free (display_x11->startup_notification_id);
2221   display_x11->startup_notification_id = g_strdup (startup_id);
2222
2223   /* Find the launch time from the startup_id, if it's there.  Newer spec
2224    * states that the startup_id is of the form <unique>_TIME<timestamp>
2225    */
2226   time_str = g_strrstr (startup_id, "_TIME");
2227   if (time_str != NULL)
2228     {
2229       gulong retval;
2230       gchar *end;
2231       errno = 0;
2232
2233       /* Skip past the "_TIME" part */
2234       time_str += 5;
2235
2236       retval = strtoul (time_str, &end, 0);
2237       if (end != time_str && errno == 0)
2238         display_x11->user_time = retval;
2239     }
2240
2241   /* Set the startup id on the leader window so it
2242    * applies to all windows we create on this display
2243    */
2244   XChangeProperty (display_x11->xdisplay,
2245                    display_x11->leader_window,
2246                    gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
2247                    gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
2248                    PropModeReplace,
2249                    (guchar *)startup_id, strlen (startup_id));
2250 }
2251
2252 static gboolean
2253 gdk_x11_display_supports_composite (GdkDisplay *display)
2254 {
2255   GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
2256
2257   return x11_display->have_xcomposite &&
2258          x11_display->have_xdamage &&
2259          x11_display->have_xfixes;
2260 }
2261
2262 static GList *
2263 gdk_x11_display_list_devices (GdkDisplay *display)
2264 {
2265   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
2266
2267   return GDK_X11_DISPLAY (display)->input_devices;
2268 }
2269
2270 /**
2271  * gdk_x11_register_standard_event_type:
2272  * @display: a #GdkDisplay
2273  * @event_base: first event type code to register
2274  * @n_events: number of event type codes to register
2275  *
2276  * Registers interest in receiving extension events with type codes
2277  * between @event_base and <literal>event_base + n_events - 1</literal>.
2278  * The registered events must have the window field in the same place
2279  * as core X events (this is not the case for e.g. XKB extension events).
2280  *
2281  * If an event type is registered, events of this type will go through
2282  * global and window-specific filters (see gdk_window_add_filter()).
2283  * Unregistered events will only go through global filters.
2284  * GDK may register the events of some X extensions on its own.
2285  *
2286  * This function should only be needed in unusual circumstances, e.g.
2287  * when filtering XInput extension events on the root window.
2288  *
2289  * Since: 2.4
2290  **/
2291 void
2292 gdk_x11_register_standard_event_type (GdkDisplay *display,
2293                                       gint        event_base,
2294                                       gint        n_events)
2295 {
2296   GdkEventTypeX11 *event_type;
2297   GdkX11Display *display_x11;
2298
2299   display_x11 = GDK_X11_DISPLAY (display);
2300   event_type = g_new (GdkEventTypeX11, 1);
2301
2302   event_type->base = event_base;
2303   event_type->n_events = n_events;
2304
2305   display_x11->event_types = g_slist_prepend (display_x11->event_types, event_type);
2306 }
2307
2308 /* compare X sequence numbers handling wraparound */
2309 #define SEQUENCE_COMPARE(a,op,b) (((long) (a) - (long) (b)) op 0)
2310
2311 /* delivers an error event from the error handler in gdkmain-x11.c */
2312 void
2313 _gdk_x11_display_error_event (GdkDisplay  *display,
2314                               XErrorEvent *error)
2315 {
2316   GdkX11Display *display_x11;
2317   GSList *tmp_list;
2318   gboolean ignore;
2319
2320   display_x11 = GDK_X11_DISPLAY (display);
2321
2322   ignore = FALSE;
2323   for (tmp_list = display_x11->error_traps;
2324        tmp_list != NULL;
2325        tmp_list = tmp_list->next)
2326     {
2327       GdkErrorTrap *trap;
2328
2329       trap = tmp_list->data;
2330
2331       if (SEQUENCE_COMPARE (trap->start_sequence, <=, error->serial) &&
2332           (trap->end_sequence == 0 ||
2333            SEQUENCE_COMPARE (trap->end_sequence, >, error->serial)))
2334         {
2335           ignore = TRUE;
2336           trap->error_code = error->error_code;
2337           break; /* only innermost trap gets the error code */
2338         }
2339     }
2340
2341   if (!ignore)
2342     {
2343       gchar buf[64];
2344       gchar *msg;
2345
2346       XGetErrorText (display_x11->xdisplay, error->error_code, buf, 63);
2347
2348       msg =
2349         g_strdup_printf ("The program '%s' received an X Window System error.\n"
2350                          "This probably reflects a bug in the program.\n"
2351                          "The error was '%s'.\n"
2352                          "  (Details: serial %ld error_code %d request_code %d minor_code %d)\n"
2353                          "  (Note to programmers: normally, X errors are reported asynchronously;\n"
2354                          "   that is, you will receive the error a while after causing it.\n"
2355                          "   To debug your program, run it with the --sync command line\n"
2356                          "   option to change this behavior. You can then get a meaningful\n"
2357                          "   backtrace from your debugger if you break on the gdk_x_error() function.)",
2358                          g_get_prgname (),
2359                          buf,
2360                          error->serial,
2361                          error->error_code,
2362                          error->request_code,
2363                          error->minor_code);
2364
2365 #ifdef G_ENABLE_DEBUG
2366       g_error ("%s", msg);
2367 #else /* !G_ENABLE_DEBUG */
2368       g_warning ("%s\n", msg);
2369
2370       exit (1);
2371 #endif /* G_ENABLE_DEBUG */
2372     }
2373 }
2374
2375 static void
2376 delete_outdated_error_traps (GdkX11Display *display_x11)
2377 {
2378   GSList *tmp_list;
2379   gulong processed_sequence;
2380
2381   processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
2382
2383   tmp_list = display_x11->error_traps;
2384   while (tmp_list != NULL)
2385     {
2386       GdkErrorTrap *trap = tmp_list->data;
2387
2388       if (trap->end_sequence != 0 &&
2389           SEQUENCE_COMPARE (trap->end_sequence, <=, processed_sequence))
2390         {
2391           GSList *free_me = tmp_list;
2392
2393           tmp_list = tmp_list->next;
2394           display_x11->error_traps =
2395             g_slist_delete_link (display_x11->error_traps, free_me);
2396           g_slice_free (GdkErrorTrap, trap);
2397         }
2398       else
2399         {
2400           tmp_list = tmp_list->next;
2401         }
2402     }
2403 }
2404
2405 /**
2406  * gdk_x11_display_error_trap_push:
2407  * @display: a #GdkDisplay
2408  *
2409  * Begins a range of X requests on @display for which X error events
2410  * will be ignored. Unignored errors (when no trap is pushed) will abort
2411  * the application. Use gdk_x11_display_error_trap_pop() or
2412  * gdk_x11_display_error_trap_pop_ignored()to lift a trap pushed
2413  * with this function.
2414  *
2415  * See also gdk_error_trap_push() to push a trap on all displays.
2416  *
2417  * Since: 3.0
2418  */
2419 void
2420 gdk_x11_display_error_trap_push (GdkDisplay *display)
2421 {
2422   GdkX11Display *display_x11;
2423   GdkErrorTrap *trap;
2424
2425   display_x11 = GDK_X11_DISPLAY (display);
2426
2427   delete_outdated_error_traps (display_x11);
2428
2429   /* set up the Xlib callback to tell us about errors */
2430   _gdk_x11_error_handler_push ();
2431
2432   trap = g_slice_new0 (GdkErrorTrap);
2433
2434   trap->start_sequence = XNextRequest (display_x11->xdisplay);
2435   trap->error_code = Success;
2436
2437   display_x11->error_traps =
2438     g_slist_prepend (display_x11->error_traps, trap);
2439 }
2440
2441 static gint
2442 gdk_x11_display_error_trap_pop_internal (GdkDisplay *display,
2443                                          gboolean    need_code)
2444 {
2445   GdkX11Display *display_x11;
2446   GdkErrorTrap *trap;
2447   GSList *tmp_list;
2448   int result;
2449
2450   display_x11 = GDK_X11_DISPLAY (display);
2451
2452   g_return_val_if_fail (display_x11->error_traps != NULL, Success);
2453
2454   /* Find the first trap that hasn't been popped already */
2455   trap = NULL; /* quiet gcc */
2456   for (tmp_list = display_x11->error_traps;
2457        tmp_list != NULL;
2458        tmp_list = tmp_list->next)
2459     {
2460       trap = tmp_list->data;
2461
2462       if (trap->end_sequence == 0)
2463         break;
2464     }
2465
2466   g_return_val_if_fail (trap != NULL, Success);
2467   g_assert (trap->end_sequence == 0);
2468
2469   /* May need to sync to fill in trap->error_code if we care about
2470    * getting an error code.
2471    */
2472   if (need_code)
2473     {
2474       gulong processed_sequence;
2475       gulong next_sequence;
2476
2477       next_sequence = XNextRequest (display_x11->xdisplay);
2478       processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
2479
2480       /* If our last request was already processed, there is no point
2481        * in syncing. i.e. if last request was a round trip (or even if
2482        * we got an event with the serial of a non-round-trip)
2483        */
2484       if ((next_sequence - 1) != processed_sequence)
2485         {
2486           XSync (display_x11->xdisplay, False);
2487         }
2488
2489       result = trap->error_code;
2490     }
2491   else
2492     {
2493       result = Success;
2494     }
2495
2496   /* record end of trap, giving us a range of
2497    * error sequences we'll ignore.
2498    */
2499   trap->end_sequence = XNextRequest (display_x11->xdisplay);
2500
2501   /* remove the Xlib callback */
2502   _gdk_x11_error_handler_pop ();
2503
2504   /* we may already be outdated */
2505   delete_outdated_error_traps (display_x11);
2506
2507   return result;
2508 }
2509
2510 /**
2511  * gdk_x11_display_error_trap_pop:
2512  * @display: the display
2513  *
2514  * Pops the error trap pushed by gdk_x11_display_error_trap_push().
2515  * Will XSync() if necessary and will always block until
2516  * the error is known to have occurred or not occurred,
2517  * so the error code can be returned.
2518  *
2519  * If you don't need to use the return value,
2520  * gdk_x11_display_error_trap_pop_ignored() would be more efficient.
2521  *
2522  * See gdk_error_trap_pop() for the all-displays-at-once
2523  * equivalent.
2524  *
2525  * Since: 3.0
2526  *
2527  * Return value: X error code or 0 on success
2528  */
2529 gint
2530 gdk_x11_display_error_trap_pop (GdkDisplay *display)
2531 {
2532   g_return_val_if_fail (GDK_IS_X11_DISPLAY (display), Success);
2533
2534   return gdk_x11_display_error_trap_pop_internal (display, TRUE);
2535 }
2536
2537 /**
2538  * gdk_x11_display_error_trap_pop_ignored:
2539  * @display: the display
2540  *
2541  * Pops the error trap pushed by gdk_x11_display_error_trap_push().
2542  * Does not block to see if an error occurred; merely records the
2543  * range of requests to ignore errors for, and ignores those errors
2544  * if they arrive asynchronously.
2545  *
2546  * See gdk_error_trap_pop_ignored() for the all-displays-at-once
2547  * equivalent.
2548  *
2549  * Since: 3.0
2550  */
2551 void
2552 gdk_x11_display_error_trap_pop_ignored (GdkDisplay *display)
2553 {
2554   g_return_if_fail (GDK_IS_X11_DISPLAY (display));
2555
2556   gdk_x11_display_error_trap_pop_internal (display, FALSE);
2557 }
2558
2559 /**
2560  * gdk_x11_set_sm_client_id:
2561  * @sm_client_id: the client id assigned by the session manager when the
2562  *    connection was opened, or %NULL to remove the property.
2563  *
2564  * Sets the <literal>SM_CLIENT_ID</literal> property on the application's leader window so that
2565  * the window manager can save the application's state using the X11R6 ICCCM
2566  * session management protocol.
2567  *
2568  * See the X Session Management Library documentation for more information on
2569  * session management and the Inter-Client Communication Conventions Manual
2570  *
2571  * Since: 2.24
2572  */
2573 void
2574 gdk_x11_set_sm_client_id (const gchar *sm_client_id)
2575 {
2576  GSList *displays, *l;
2577
2578   g_free (gdk_sm_client_id);
2579   gdk_sm_client_id = g_strdup (sm_client_id);
2580
2581   displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
2582   for (l = displays; l; l = l->next)
2583     set_sm_client_id (l->data, sm_client_id);
2584
2585   g_slist_free (displays);
2586 }
2587
2588 static void
2589 gdk_x11_display_event_data_copy (GdkDisplay    *display,
2590                                 const GdkEvent *src,
2591                                 GdkEvent       *dst)
2592 {
2593 }
2594
2595 static void
2596 gdk_x11_display_event_data_free (GdkDisplay *display,
2597                                  GdkEvent *event)
2598 {
2599 }
2600
2601 static gint
2602 pop_error_trap (GdkDisplay *display,
2603                 gboolean    ignored)
2604 {
2605   if (ignored)
2606     {
2607       gdk_x11_display_error_trap_pop_ignored (display);
2608       return Success;
2609     }
2610   else
2611     {
2612       return gdk_x11_display_error_trap_pop (display);
2613     }
2614 }
2615
2616 static GdkKeymap *
2617 gdk_x11_display_get_keymap (GdkDisplay *display)
2618 {
2619   GdkX11Display *display_x11;
2620   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
2621   display_x11 = GDK_X11_DISPLAY (display);
2622
2623   if (!display_x11->keymap)
2624     display_x11->keymap = g_object_new (GDK_TYPE_X11_KEYMAP, NULL);
2625
2626   display_x11->keymap->display = display;
2627
2628   return display_x11->keymap;
2629 }
2630
2631 static void
2632 gdk_x11_display_class_init (GdkX11DisplayClass * class)
2633 {
2634   GObjectClass *object_class = G_OBJECT_CLASS (class);
2635   GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
2636
2637   object_class->dispose = gdk_x11_display_dispose;
2638   object_class->finalize = gdk_x11_display_finalize;
2639
2640   display_class->window_type = GDK_TYPE_X11_WINDOW;
2641
2642   display_class->get_name = gdk_x11_display_get_name;
2643   display_class->get_n_screens = gdk_x11_display_get_n_screens;
2644   display_class->get_screen = gdk_x11_display_get_screen;
2645   display_class->get_default_screen = gdk_x11_display_get_default_screen;
2646   display_class->beep = gdk_x11_display_beep;
2647   display_class->sync = gdk_x11_display_sync;
2648   display_class->flush = gdk_x11_display_flush;
2649   display_class->has_pending = gdk_x11_display_has_pending;
2650   display_class->queue_events = _gdk_x11_display_queue_events;
2651   display_class->get_default_group = gdk_x11_display_get_default_group;
2652   display_class->supports_selection_notification = gdk_x11_display_supports_selection_notification;
2653   display_class->request_selection_notification = gdk_x11_display_request_selection_notification;
2654   display_class->supports_clipboard_persistence = gdk_x11_display_supports_clipboard_persistence;
2655   display_class->store_clipboard = gdk_x11_display_store_clipboard;
2656   display_class->supports_shapes = gdk_x11_display_supports_shapes;
2657   display_class->supports_input_shapes = gdk_x11_display_supports_input_shapes;
2658   display_class->supports_composite = gdk_x11_display_supports_composite;
2659   display_class->list_devices = gdk_x11_display_list_devices;
2660   display_class->get_app_launch_context = _gdk_x11_display_get_app_launch_context;
2661   display_class->get_cursor_for_type = _gdk_x11_display_get_cursor_for_type;
2662   display_class->get_cursor_for_name = _gdk_x11_display_get_cursor_for_name;
2663   display_class->get_cursor_for_pixbuf = _gdk_x11_display_get_cursor_for_pixbuf;
2664   display_class->get_default_cursor_size = _gdk_x11_display_get_default_cursor_size;
2665   display_class->get_maximal_cursor_size = _gdk_x11_display_get_maximal_cursor_size;
2666   display_class->supports_cursor_alpha = _gdk_x11_display_supports_cursor_alpha;
2667   display_class->supports_cursor_color = _gdk_x11_display_supports_cursor_color;
2668
2669   display_class->before_process_all_updates = _gdk_x11_display_before_process_all_updates;
2670   display_class->after_process_all_updates = _gdk_x11_display_after_process_all_updates;
2671   display_class->get_next_serial = gdk_x11_display_get_next_serial;
2672   display_class->notify_startup_complete = gdk_x11_display_notify_startup_complete;
2673   display_class->event_data_copy = gdk_x11_display_event_data_copy;
2674   display_class->event_data_free = gdk_x11_display_event_data_free;
2675   display_class->create_window_impl = _gdk_x11_display_create_window_impl;
2676   display_class->get_keymap = gdk_x11_display_get_keymap;
2677   display_class->push_error_trap = gdk_x11_display_error_trap_push;
2678   display_class->pop_error_trap = pop_error_trap;
2679   display_class->get_selection_owner = _gdk_x11_display_get_selection_owner;
2680   display_class->set_selection_owner = _gdk_x11_display_set_selection_owner;
2681   display_class->send_selection_notify = _gdk_x11_display_send_selection_notify;
2682   display_class->get_selection_property = _gdk_x11_display_get_selection_property;
2683   display_class->convert_selection = _gdk_x11_display_convert_selection;
2684   display_class->text_property_to_utf8_list = _gdk_x11_display_text_property_to_utf8_list;
2685   display_class->utf8_to_string_target = _gdk_x11_display_utf8_to_string_target;
2686 }