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        * so trap errors asynchronously around the XSetInputFocus call
1028        */
1029       if (toplevel && win->accept_focus)
1030         {
1031           gdk_x11_display_error_trap_push (display);
1032           XSetInputFocus (GDK_DISPLAY_XDISPLAY (display),
1033                           toplevel->focus_window,
1034                           RevertToParent,
1035                           xevent->xclient.data.l[1]);
1036           gdk_x11_display_error_trap_pop_ignored (display);
1037        }
1038
1039       return GDK_FILTER_REMOVE;
1040     }
1041   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING") &&
1042            !_gdk_x11_display_is_root_window (display,
1043                                              xevent->xclient.window))
1044     {
1045       XClientMessageEvent xclient = xevent->xclient;
1046
1047       xclient.window = GDK_WINDOW_XROOTWIN (win);
1048       XSendEvent (GDK_WINDOW_XDISPLAY (win),
1049                   xclient.window,
1050                   False,
1051                   SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xclient);
1052
1053       return GDK_FILTER_REMOVE;
1054     }
1055   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_SYNC_REQUEST") &&
1056            GDK_X11_DISPLAY (display)->use_sync)
1057     {
1058       GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
1059       if (toplevel)
1060         {
1061 #ifdef HAVE_XSYNC
1062           XSyncIntsToValue (&toplevel->pending_counter_value,
1063                             xevent->xclient.data.l[2],
1064                             xevent->xclient.data.l[3]);
1065 #endif
1066         }
1067       return GDK_FILTER_REMOVE;
1068     }
1069
1070   return GDK_FILTER_CONTINUE;
1071 }
1072
1073 static void
1074 gdk_event_init (GdkDisplay *display)
1075 {
1076   GdkX11Display *display_x11;
1077   GdkDeviceManager *device_manager;
1078
1079   display_x11 = GDK_X11_DISPLAY (display);
1080   display_x11->event_source = gdk_x11_event_source_new (display);
1081
1082   gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
1083                                        GDK_EVENT_TRANSLATOR (display));
1084
1085   device_manager = gdk_display_get_device_manager (display);
1086   gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
1087                                         GDK_EVENT_TRANSLATOR (device_manager));
1088 }
1089
1090 static void
1091 gdk_x11_display_init_input (GdkDisplay *display)
1092 {
1093   GdkX11Display *display_x11;
1094   GdkDeviceManager *device_manager;
1095   GdkDevice *device;
1096   GList *list, *l;
1097
1098   display_x11 = GDK_X11_DISPLAY (display);
1099   device_manager = gdk_display_get_device_manager (display);
1100
1101   /* For backwards compatibility, just add
1102    * floating devices that are not keyboards.
1103    */
1104   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING);
1105
1106   for (l = list; l; l = l->next)
1107     {
1108       device = l->data;
1109
1110       if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
1111         continue;
1112
1113       display_x11->input_devices = g_list_prepend (display_x11->input_devices,
1114                                                    g_object_ref (l->data));
1115     }
1116
1117   g_list_free (list);
1118
1119   /* Now set "core" pointer to the first
1120    * master device that is a pointer.
1121    */
1122   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
1123
1124   for (l = list; l; l = l->next)
1125     {
1126       device = l->data;
1127
1128       if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE)
1129         continue;
1130
1131       display->core_pointer = device;
1132       break;
1133     }
1134
1135   /* Add the core pointer to the devices list */
1136   display_x11->input_devices = g_list_prepend (display_x11->input_devices,
1137                                                g_object_ref (display->core_pointer));
1138
1139   g_list_free (list);
1140 }
1141
1142 static void
1143 set_sm_client_id (GdkDisplay  *display,
1144                   const gchar *sm_client_id)
1145 {
1146   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1147
1148   if (gdk_display_is_closed (display))
1149     return;
1150
1151   if (sm_client_id && strcmp (sm_client_id, ""))
1152     XChangeProperty (display_x11->xdisplay, display_x11->leader_window,
1153                      gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"),
1154                      XA_STRING, 8, PropModeReplace, (guchar *)sm_client_id,
1155                      strlen (sm_client_id));
1156   else
1157     XDeleteProperty (display_x11->xdisplay, display_x11->leader_window,
1158                      gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"));
1159 }
1160
1161 GdkDisplay *
1162 _gdk_x11_display_open (const gchar *display_name)
1163 {
1164   Display *xdisplay;
1165   GdkDisplay *display;
1166   GdkX11Display *display_x11;
1167   GdkWindowAttr attr;
1168   gint argc;
1169   gchar *argv[1];
1170
1171   XClassHint *class_hint;
1172   gulong pid;
1173   gint i;
1174   gint ignore;
1175   gint maj, min;
1176
1177   xdisplay = XOpenDisplay (display_name);
1178   if (!xdisplay)
1179     return NULL;
1180
1181   display = g_object_new (GDK_TYPE_X11_DISPLAY, NULL);
1182   display_x11 = GDK_X11_DISPLAY (display);
1183
1184   display_x11->xdisplay = xdisplay;
1185
1186 #ifdef HAVE_X11R6
1187   /* Set up handlers for Xlib internal connections */
1188   XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
1189 #endif /* HAVE_X11R6 */
1190
1191   _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
1192
1193   /* RandR must be initialized before we initialize the screens */
1194   display_x11->have_randr12 = FALSE;
1195   display_x11->have_randr13 = FALSE;
1196 #ifdef HAVE_RANDR
1197   if (XRRQueryExtension (display_x11->xdisplay,
1198                          &display_x11->xrandr_event_base, &ignore))
1199   {
1200       int major, minor;
1201
1202       XRRQueryVersion (display_x11->xdisplay, &major, &minor);
1203
1204       if ((major == 1 && minor >= 2) || major > 1) {
1205           display_x11->have_randr12 = TRUE;
1206           if (minor >= 3 || major > 1)
1207               display_x11->have_randr13 = TRUE;
1208       }
1209
1210        gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents);
1211   }
1212 #endif
1213
1214   /* initialize the display's screens */
1215   display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
1216   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1217     display_x11->screens[i] = _gdk_x11_screen_new (display, i);
1218
1219   /* We need to initialize events after we have the screen
1220    * structures in places
1221    */
1222   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1223     _gdk_x11_screen_init_events (display_x11->screens[i]);
1224
1225   /*set the default screen */
1226   display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
1227
1228   display->device_manager = _gdk_x11_device_manager_new (display);
1229
1230   gdk_event_init (display);
1231
1232   attr.window_type = GDK_WINDOW_TOPLEVEL;
1233   attr.wclass = GDK_INPUT_OUTPUT;
1234   attr.x = 10;
1235   attr.y = 10;
1236   attr.width = 10;
1237   attr.height = 10;
1238   attr.event_mask = 0;
1239
1240   display_x11->leader_gdk_window = gdk_window_new (GDK_X11_SCREEN (display_x11->default_screen)->root_window,
1241                                                    &attr, GDK_WA_X | GDK_WA_Y);
1242   (_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
1243
1244   display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
1245
1246   display_x11->leader_window_title_set = FALSE;
1247
1248 #ifdef HAVE_XFIXES
1249   if (XFixesQueryExtension (display_x11->xdisplay,
1250                             &display_x11->xfixes_event_base,
1251                             &ignore))
1252     {
1253       display_x11->have_xfixes = TRUE;
1254
1255       gdk_x11_register_standard_event_type (display,
1256                                             display_x11->xfixes_event_base,
1257                                             XFixesNumberEvents);
1258     }
1259   else
1260 #endif
1261     display_x11->have_xfixes = FALSE;
1262
1263 #ifdef HAVE_XCOMPOSITE
1264   if (XCompositeQueryExtension (display_x11->xdisplay,
1265                                 &ignore, &ignore))
1266     {
1267       int major, minor;
1268
1269       XCompositeQueryVersion (display_x11->xdisplay, &major, &minor);
1270
1271       /* Prior to Composite version 0.4, composited windows clipped their
1272        * parents, so you had to use IncludeInferiors to draw to the parent
1273        * This isn't useful for our purposes, so require 0.4
1274        */
1275       display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4);
1276     }
1277   else
1278 #endif
1279     display_x11->have_xcomposite = FALSE;
1280
1281 #ifdef HAVE_XDAMAGE
1282   if (XDamageQueryExtension (display_x11->xdisplay,
1283                              &display_x11->xdamage_event_base,
1284                              &ignore))
1285     {
1286       display_x11->have_xdamage = TRUE;
1287
1288       gdk_x11_register_standard_event_type (display,
1289                                             display_x11->xdamage_event_base,
1290                                             XDamageNumberEvents);
1291     }
1292   else
1293 #endif
1294     display_x11->have_xdamage = FALSE;
1295
1296   display_x11->have_shapes = FALSE;
1297   display_x11->have_input_shapes = FALSE;
1298
1299   if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &display_x11->shape_event_base, &ignore))
1300     {
1301       display_x11->have_shapes = TRUE;
1302 #ifdef ShapeInput
1303       if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min))
1304         display_x11->have_input_shapes = (maj == 1 && min >= 1);
1305 #endif
1306     }
1307
1308   display_x11->trusted_client = TRUE;
1309   {
1310     Window root, child;
1311     int rootx, rooty, winx, winy;
1312     unsigned int xmask;
1313
1314     gdk_x11_display_error_trap_push (display);
1315     XQueryPointer (display_x11->xdisplay,
1316                    GDK_X11_SCREEN (display_x11->default_screen)->xroot_window,
1317                    &root, &child, &rootx, &rooty, &winx, &winy, &xmask);
1318     if (G_UNLIKELY (gdk_x11_display_error_trap_pop (display) == BadWindow))
1319       {
1320         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));
1321         display_x11->trusted_client = FALSE;
1322       }
1323   }
1324
1325   if (g_getenv ("GDK_SYNCHRONIZE"))
1326     XSynchronize (display_x11->xdisplay, True);
1327
1328   class_hint = XAllocClassHint();
1329   class_hint->res_name = g_get_prgname ();
1330
1331   class_hint->res_class = (char *)gdk_get_program_class ();
1332
1333   /* XmbSetWMProperties sets the RESOURCE_NAME environment variable
1334    * from argv[0], so we just synthesize an argument array here.
1335    */
1336   argc = 1;
1337   argv[0] = g_get_prgname ();
1338
1339   XmbSetWMProperties (display_x11->xdisplay,
1340                       display_x11->leader_window,
1341                       NULL, NULL, argv, argc, NULL, NULL,
1342                       class_hint);
1343   XFree (class_hint);
1344
1345   if (gdk_sm_client_id)
1346     set_sm_client_id (display, gdk_sm_client_id);
1347
1348   pid = getpid ();
1349   XChangeProperty (display_x11->xdisplay,
1350                    display_x11->leader_window,
1351                    gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
1352                    XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
1353
1354   /* We don't yet know a valid time. */
1355   display_x11->user_time = 0;
1356
1357 #ifdef HAVE_XKB
1358   {
1359     gint xkb_major = XkbMajorVersion;
1360     gint xkb_minor = XkbMinorVersion;
1361     if (XkbLibraryVersion (&xkb_major, &xkb_minor))
1362       {
1363         xkb_major = XkbMajorVersion;
1364         xkb_minor = XkbMinorVersion;
1365
1366         if (XkbQueryExtension (display_x11->xdisplay,
1367                                NULL, &display_x11->xkb_event_type, NULL,
1368                                &xkb_major, &xkb_minor))
1369           {
1370             Bool detectable_autorepeat_supported;
1371
1372             display_x11->use_xkb = TRUE;
1373
1374             XkbSelectEvents (display_x11->xdisplay,
1375                              XkbUseCoreKbd,
1376                              XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
1377                              XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
1378
1379             /* keep this in sync with _gdk_x11_keymap_state_changed() */
1380             XkbSelectEventDetails (display_x11->xdisplay,
1381                                    XkbUseCoreKbd, XkbStateNotify,
1382                                    XkbAllStateComponentsMask,
1383                                    XkbGroupLockMask|XkbModifierLockMask);
1384
1385             XkbSetDetectableAutoRepeat (display_x11->xdisplay,
1386                                         True,
1387                                         &detectable_autorepeat_supported);
1388
1389             GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
1390                                        detectable_autorepeat_supported ?
1391                                        "supported" : "not supported"));
1392
1393             display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
1394           }
1395       }
1396   }
1397 #endif
1398
1399   display_x11->use_sync = FALSE;
1400 #ifdef HAVE_XSYNC
1401   {
1402     int major, minor;
1403     int error_base, event_base;
1404
1405     if (XSyncQueryExtension (display_x11->xdisplay,
1406                              &event_base, &error_base) &&
1407         XSyncInitialize (display_x11->xdisplay,
1408                          &major, &minor))
1409       display_x11->use_sync = TRUE;
1410   }
1411 #endif
1412
1413   gdk_x11_display_init_input (display);
1414
1415   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1416     _gdk_x11_screen_setup (display_x11->screens[i]);
1417
1418   g_signal_emit_by_name (display, "opened");
1419   g_signal_emit_by_name (gdk_display_manager_get (), "display-opened", display);
1420
1421   return display;
1422 }
1423
1424 #ifdef HAVE_X11R6
1425 /*
1426  * XLib internal connection handling
1427  */
1428 typedef struct _GdkInternalConnection GdkInternalConnection;
1429
1430 struct _GdkInternalConnection
1431 {
1432   gint           fd;
1433   GSource       *source;
1434   Display       *display;
1435 };
1436
1437 static gboolean
1438 process_internal_connection (GIOChannel  *gioc,
1439                              GIOCondition cond,
1440                              gpointer     data)
1441 {
1442   GdkInternalConnection *connection = (GdkInternalConnection *)data;
1443
1444   GDK_THREADS_ENTER ();
1445
1446   XProcessInternalConnection ((Display*)connection->display, connection->fd);
1447
1448   GDK_THREADS_LEAVE ();
1449
1450   return TRUE;
1451 }
1452
1453 static gulong
1454 gdk_x11_display_get_next_serial (GdkDisplay *display)
1455 {
1456   return NextRequest (GDK_DISPLAY_XDISPLAY (display));
1457 }
1458
1459
1460 static GdkInternalConnection *
1461 gdk_add_connection_handler (Display *display,
1462                             guint    fd)
1463 {
1464   GIOChannel *io_channel;
1465   GdkInternalConnection *connection;
1466
1467   connection = g_new (GdkInternalConnection, 1);
1468
1469   connection->fd = fd;
1470   connection->display = display;
1471
1472   io_channel = g_io_channel_unix_new (fd);
1473
1474   connection->source = g_io_create_watch (io_channel, G_IO_IN);
1475   g_source_set_callback (connection->source,
1476                          (GSourceFunc)process_internal_connection, connection, NULL);
1477   g_source_attach (connection->source, NULL);
1478
1479   g_io_channel_unref (io_channel);
1480
1481   return connection;
1482 }
1483
1484 static void
1485 gdk_remove_connection_handler (GdkInternalConnection *connection)
1486 {
1487   g_source_destroy (connection->source);
1488   g_free (connection);
1489 }
1490
1491 static void
1492 gdk_internal_connection_watch (Display  *display,
1493                                XPointer  arg,
1494                                gint      fd,
1495                                gboolean  opening,
1496                                XPointer *watch_data)
1497 {
1498   if (opening)
1499     *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
1500   else
1501     gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
1502 }
1503 #endif /* HAVE_X11R6 */
1504
1505 static const gchar *
1506 gdk_x11_display_get_name (GdkDisplay *display)
1507 {
1508   return (gchar *) DisplayString (GDK_X11_DISPLAY (display)->xdisplay);
1509 }
1510
1511 static gint
1512 gdk_x11_display_get_n_screens (GdkDisplay *display)
1513 {
1514   return ScreenCount (GDK_X11_DISPLAY (display)->xdisplay);
1515 }
1516
1517 static GdkScreen *
1518 gdk_x11_display_get_screen (GdkDisplay *display,
1519                             gint        screen_num)
1520 {
1521   g_return_val_if_fail (ScreenCount (GDK_X11_DISPLAY (display)->xdisplay) > screen_num, NULL);
1522
1523   return GDK_X11_DISPLAY (display)->screens[screen_num];
1524 }
1525
1526 static GdkScreen *
1527 gdk_x11_display_get_default_screen (GdkDisplay *display)
1528 {
1529   return GDK_X11_DISPLAY (display)->default_screen;
1530 }
1531
1532 gboolean
1533 _gdk_x11_display_is_root_window (GdkDisplay *display,
1534                                  Window      xroot_window)
1535 {
1536   GdkX11Display *display_x11;
1537   gint i;
1538
1539   display_x11 = GDK_X11_DISPLAY (display);
1540
1541   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1542     {
1543       if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
1544         return TRUE;
1545     }
1546   return FALSE;
1547 }
1548
1549 struct XPointerUngrabInfo {
1550   GdkDisplay *display;
1551   guint32 time;
1552 };
1553
1554 static void
1555 device_grab_update_callback (GdkDisplay *display,
1556                              gpointer    data,
1557                              gulong      serial)
1558 {
1559   GdkDevice *device = data;
1560
1561   _gdk_display_device_grab_update (display, device, NULL, serial);
1562 }
1563
1564 #define XSERVER_TIME_IS_LATER(time1, time2)                        \
1565   ( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) ||  \
1566     (( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 ))     \
1567   )
1568
1569 void
1570 _gdk_x11_display_update_grab_info (GdkDisplay *display,
1571                                    GdkDevice  *device,
1572                                    gint        status)
1573 {
1574   if (status == GrabSuccess)
1575     _gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
1576 }
1577
1578 void
1579 _gdk_x11_display_update_grab_info_ungrab (GdkDisplay *display,
1580                                           GdkDevice  *device,
1581                                           guint32     time,
1582                                           gulong      serial)
1583 {
1584   GdkDeviceGrabInfo *grab;
1585
1586   XFlush (GDK_DISPLAY_XDISPLAY (display));
1587
1588   grab = _gdk_display_get_last_device_grab (display, device);
1589   if (grab &&
1590       (time == GDK_CURRENT_TIME ||
1591        grab->time == GDK_CURRENT_TIME ||
1592        !XSERVER_TIME_IS_LATER (grab->time, time)))
1593     {
1594       grab->serial_end = serial;
1595       _gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
1596     }
1597 }
1598
1599 static void
1600 gdk_x11_display_beep (GdkDisplay *display)
1601 {
1602 #ifdef HAVE_XKB
1603   XkbBell (GDK_DISPLAY_XDISPLAY (display), None, 0, None);
1604 #else
1605   XBell (GDK_DISPLAY_XDISPLAY (display), 0);
1606 #endif
1607 }
1608
1609 static void
1610 gdk_x11_display_sync (GdkDisplay *display)
1611 {
1612   XSync (GDK_DISPLAY_XDISPLAY (display), False);
1613 }
1614
1615 static void
1616 gdk_x11_display_flush (GdkDisplay *display)
1617 {
1618   if (!display->closed)
1619     XFlush (GDK_DISPLAY_XDISPLAY (display));
1620 }
1621
1622 static gboolean
1623 gdk_x11_display_has_pending (GdkDisplay *display)
1624 {
1625   return XPending (GDK_DISPLAY_XDISPLAY (display));
1626 }
1627
1628 static GdkWindow *
1629 gdk_x11_display_get_default_group (GdkDisplay *display)
1630 {
1631   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1632
1633   return GDK_X11_DISPLAY (display)->leader_gdk_window;
1634 }
1635
1636 /**
1637  * gdk_x11_display_grab:
1638  * @display: (type GdkX11Display): a #GdkDisplay
1639  *
1640  * Call XGrabServer() on @display.
1641  * To ungrab the display again, use gdk_x11_display_ungrab().
1642  *
1643  * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
1644  *
1645  * Since: 2.2
1646  **/
1647 void
1648 gdk_x11_display_grab (GdkDisplay *display)
1649 {
1650   GdkX11Display *display_x11;
1651
1652   g_return_if_fail (GDK_IS_DISPLAY (display));
1653
1654   display_x11 = GDK_X11_DISPLAY (display);
1655
1656   if (display_x11->grab_count == 0)
1657     XGrabServer (display_x11->xdisplay);
1658   display_x11->grab_count++;
1659 }
1660
1661 /**
1662  * gdk_x11_display_ungrab:
1663  * @display: (type GdkX11Display): a #GdkDisplay
1664  *
1665  * Ungrab @display after it has been grabbed with
1666  * gdk_x11_display_grab().
1667  *
1668  * Since: 2.2
1669  **/
1670 void
1671 gdk_x11_display_ungrab (GdkDisplay *display)
1672 {
1673   GdkX11Display *display_x11;
1674
1675   g_return_if_fail (GDK_IS_DISPLAY (display));
1676
1677   display_x11 = GDK_X11_DISPLAY (display);;
1678   g_return_if_fail (display_x11->grab_count > 0);
1679
1680   display_x11->grab_count--;
1681   if (display_x11->grab_count == 0)
1682     {
1683       XUngrabServer (display_x11->xdisplay);
1684       XFlush (display_x11->xdisplay);
1685     }
1686 }
1687
1688 static void
1689 gdk_x11_display_dispose (GObject *object)
1690 {
1691   GdkDisplay *display = GDK_DISPLAY (object);
1692   GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
1693   gint           i;
1694
1695   _gdk_x11_display_manager_remove_display (gdk_display_manager_get (), display);
1696
1697   g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL);
1698
1699   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1700     _gdk_screen_close (display_x11->screens[i]);
1701
1702   if (display_x11->event_source)
1703     {
1704       g_source_destroy (display_x11->event_source);
1705       g_source_unref (display_x11->event_source);
1706       display_x11->event_source = NULL;
1707     }
1708
1709   G_OBJECT_CLASS (gdk_x11_display_parent_class)->dispose (object);
1710 }
1711
1712 static void
1713 gdk_x11_display_finalize (GObject *object)
1714 {
1715   GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
1716   gint           i;
1717
1718   /* Keymap */
1719   if (display_x11->keymap)
1720     g_object_unref (display_x11->keymap);
1721
1722   /* Free motif Dnd */
1723   if (display_x11->motif_target_lists)
1724     {
1725       for (i = 0; i < display_x11->motif_n_target_lists; i++)
1726         g_list_free (display_x11->motif_target_lists[i]);
1727       g_free (display_x11->motif_target_lists);
1728     }
1729
1730   _gdk_x11_cursor_display_finalize (GDK_DISPLAY (display_x11));
1731
1732   /* Empty the event queue */
1733   _gdk_x11_display_free_translate_queue (GDK_DISPLAY (display_x11));
1734
1735   /* Atom Hashtable */
1736   g_hash_table_destroy (display_x11->atom_from_virtual);
1737   g_hash_table_destroy (display_x11->atom_to_virtual);
1738
1739   /* Leader Window */
1740   XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
1741
1742   /* List of event window extraction functions */
1743   g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
1744   g_slist_free (display_x11->event_types);
1745
1746   /* input GdkDevice list */
1747   g_list_foreach (display_x11->input_devices, (GFunc) g_object_unref, NULL);
1748   g_list_free (display_x11->input_devices);
1749
1750   /* input GdkWindow list */
1751   g_list_foreach (display_x11->input_windows, (GFunc) g_free, NULL);
1752   g_list_free (display_x11->input_windows);
1753
1754   /* Free all GdkScreens */
1755   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1756     g_object_unref (display_x11->screens[i]);
1757   g_free (display_x11->screens);
1758
1759   g_free (display_x11->startup_notification_id);
1760
1761   /* X ID hashtable */
1762   g_hash_table_destroy (display_x11->xid_ht);
1763
1764   XCloseDisplay (display_x11->xdisplay);
1765
1766   /* error traps */
1767   while (display_x11->error_traps != NULL)
1768     {
1769       GdkErrorTrap *trap = display_x11->error_traps->data;
1770
1771       display_x11->error_traps =
1772         g_slist_delete_link (display_x11->error_traps,
1773                              display_x11->error_traps);
1774
1775       if (trap->end_sequence == 0)
1776         g_warning ("Display finalized with an unpopped error trap");
1777
1778       g_slice_free (GdkErrorTrap, trap);
1779     }
1780
1781   G_OBJECT_CLASS (gdk_x11_display_parent_class)->finalize (object);
1782 }
1783
1784 /**
1785  * gdk_x11_lookup_xdisplay:
1786  * @xdisplay: a pointer to an X Display
1787  *
1788  * Find the #GdkDisplay corresponding to @display, if any exists.
1789  *
1790  * Return value: (transfer none): the #GdkDisplay, if found, otherwise %NULL.
1791  *
1792  * Since: 2.2
1793  **/
1794 GdkDisplay *
1795 gdk_x11_lookup_xdisplay (Display *xdisplay)
1796 {
1797   GSList *list, *l;
1798   GdkDisplay *display;
1799
1800   display = NULL;
1801
1802   list = gdk_display_manager_list_displays (gdk_display_manager_get ());
1803
1804   for (l = list; l; l = l->next)
1805     {
1806       if (GDK_DISPLAY_XDISPLAY (l->data) == xdisplay)
1807         {
1808           display = l->data;
1809           break;
1810         }
1811     }
1812
1813   g_slist_free (list);
1814
1815   return display;
1816 }
1817
1818 /**
1819  * _gdk_x11_display_screen_for_xrootwin:
1820  * @display: a #GdkDisplay
1821  * @xrootwin: window ID for one of of the screen's of the display.
1822  *
1823  * Given the root window ID of one of the screen's of a #GdkDisplay,
1824  * finds the screen.
1825  *
1826  * Return value: (transfer none): the #GdkScreen corresponding to
1827  *     @xrootwin, or %NULL.
1828  **/
1829 GdkScreen *
1830 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
1831                                       Window      xrootwin)
1832 {
1833   gint i;
1834
1835   for (i = 0; i < ScreenCount (GDK_X11_DISPLAY (display)->xdisplay); i++)
1836     {
1837       GdkScreen *screen = gdk_display_get_screen (display, i);
1838       if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
1839         return screen;
1840     }
1841
1842   return NULL;
1843 }
1844
1845 /**
1846  * gdk_x11_display_get_xdisplay:
1847  * @display: (type GdkX11Display): a #GdkDisplay
1848  * @returns: (transfer none): an X display.
1849  *
1850  * Returns the X display of a #GdkDisplay.
1851  *
1852  * Since: 2.2
1853  */
1854 Display *
1855 gdk_x11_display_get_xdisplay (GdkDisplay *display)
1856 {
1857   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1858   return GDK_X11_DISPLAY (display)->xdisplay;
1859 }
1860
1861 void
1862 _gdk_x11_display_make_default (GdkDisplay *display)
1863 {
1864   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1865   const gchar *startup_id;
1866
1867   g_free (display_x11->startup_notification_id);
1868   display_x11->startup_notification_id = NULL;
1869
1870   startup_id = g_getenv ("DESKTOP_STARTUP_ID");
1871   if (startup_id && *startup_id != '\0')
1872     {
1873       if (!g_utf8_validate (startup_id, -1, NULL))
1874         g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
1875       else
1876         gdk_x11_display_set_startup_notification_id (display, startup_id);
1877
1878       /* Clear the environment variable so it won't be inherited by
1879        * child processes and confuse things.
1880        */
1881       g_unsetenv ("DESKTOP_STARTUP_ID");
1882     }
1883 }
1884
1885 static void
1886 broadcast_xmessage (GdkDisplay *display,
1887                     const char *message_type,
1888                     const char *message_type_begin,
1889                     const char *message)
1890 {
1891   Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
1892   GdkScreen *screen = gdk_display_get_default_screen (display);
1893   GdkWindow *root_window = gdk_screen_get_root_window (screen);
1894   Window xroot_window = GDK_WINDOW_XID (root_window);
1895
1896   Atom type_atom;
1897   Atom type_atom_begin;
1898   Window xwindow;
1899
1900   if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
1901     return;
1902
1903   {
1904     XSetWindowAttributes attrs;
1905
1906     attrs.override_redirect = True;
1907     attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
1908
1909     xwindow =
1910       XCreateWindow (xdisplay,
1911                      xroot_window,
1912                      -100, -100, 1, 1,
1913                      0,
1914                      CopyFromParent,
1915                      CopyFromParent,
1916                      (Visual *)CopyFromParent,
1917                      CWOverrideRedirect | CWEventMask,
1918                      &attrs);
1919   }
1920
1921   type_atom = gdk_x11_get_xatom_by_name_for_display (display,
1922                                                      message_type);
1923   type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
1924                                                            message_type_begin);
1925
1926   {
1927     XClientMessageEvent xclient;
1928     const char *src;
1929     const char *src_end;
1930     char *dest;
1931     char *dest_end;
1932
1933                 memset(&xclient, 0, sizeof (xclient));
1934     xclient.type = ClientMessage;
1935     xclient.message_type = type_atom_begin;
1936     xclient.display =xdisplay;
1937     xclient.window = xwindow;
1938     xclient.format = 8;
1939
1940     src = message;
1941     src_end = message + strlen (message) + 1; /* +1 to include nul byte */
1942
1943     while (src != src_end)
1944       {
1945         dest = &xclient.data.b[0];
1946         dest_end = dest + 20;
1947
1948         while (dest != dest_end &&
1949                src != src_end)
1950           {
1951             *dest = *src;
1952             ++dest;
1953             ++src;
1954           }
1955
1956         while (dest != dest_end)
1957           {
1958             *dest = 0;
1959             ++dest;
1960           }
1961
1962         XSendEvent (xdisplay,
1963                     xroot_window,
1964                     False,
1965                     PropertyChangeMask,
1966                     (XEvent *)&xclient);
1967
1968         xclient.message_type = type_atom;
1969       }
1970   }
1971
1972   XDestroyWindow (xdisplay, xwindow);
1973   XFlush (xdisplay);
1974 }
1975
1976 /**
1977  * gdk_x11_display_broadcast_startup_message:
1978  * @display: (type GdkX11Display): a #GdkDisplay
1979  * @message_type: startup notification message type ("new", "change",
1980  * or "remove")
1981  * @...: a list of key/value pairs (as strings), terminated by a
1982  * %NULL key. (A %NULL value for a key will cause that key to be
1983  * skipped in the output.)
1984  *
1985  * Sends a startup notification message of type @message_type to
1986  * @display.
1987  *
1988  * This is a convenience function for use by code that implements the
1989  * freedesktop startup notification specification. Applications should
1990  * not normally need to call it directly. See the <ulink
1991  * url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">Startup
1992  * Notification Protocol specification</ulink> for
1993  * definitions of the message types and keys that can be used.
1994  *
1995  * Since: 2.12
1996  **/
1997 void
1998 gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
1999                                            const char *message_type,
2000                                            ...)
2001 {
2002   GString *message;
2003   va_list ap;
2004   const char *key, *value, *p;
2005
2006   message = g_string_new (message_type);
2007   g_string_append_c (message, ':');
2008
2009   va_start (ap, message_type);
2010   while ((key = va_arg (ap, const char *)))
2011     {
2012       value = va_arg (ap, const char *);
2013       if (!value)
2014         continue;
2015
2016       g_string_append_printf (message, " %s=\"", key);
2017       for (p = value; *p; p++)
2018         {
2019           switch (*p)
2020             {
2021             case ' ':
2022             case '"':
2023             case '\\':
2024               g_string_append_c (message, '\\');
2025               break;
2026             }
2027
2028           g_string_append_c (message, *p);
2029         }
2030       g_string_append_c (message, '\"');
2031     }
2032   va_end (ap);
2033
2034   broadcast_xmessage (display,
2035                       "_NET_STARTUP_INFO",
2036                       "_NET_STARTUP_INFO_BEGIN",
2037                       message->str);
2038
2039   g_string_free (message, TRUE);
2040 }
2041
2042 static void
2043 gdk_x11_display_notify_startup_complete (GdkDisplay  *display,
2044                                          const gchar *startup_id)
2045 {
2046   if (startup_id == NULL)
2047     {
2048       startup_id = GDK_X11_DISPLAY (display)->startup_notification_id;
2049       if (startup_id == NULL)
2050         return;
2051     }
2052
2053   gdk_x11_display_broadcast_startup_message (display, "remove",
2054                                              "ID", startup_id,
2055                                              NULL);
2056 }
2057
2058 static gboolean
2059 gdk_x11_display_supports_selection_notification (GdkDisplay *display)
2060 {
2061   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2062
2063   return display_x11->have_xfixes;
2064 }
2065
2066 static gboolean
2067 gdk_x11_display_request_selection_notification (GdkDisplay *display,
2068                                                 GdkAtom     selection)
2069
2070 {
2071 #ifdef HAVE_XFIXES
2072   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2073   Atom atom;
2074
2075   if (display_x11->have_xfixes)
2076     {
2077       atom = gdk_x11_atom_to_xatom_for_display (display,
2078                                                 selection);
2079       XFixesSelectSelectionInput (display_x11->xdisplay,
2080                                   display_x11->leader_window,
2081                                   atom,
2082                                   XFixesSetSelectionOwnerNotifyMask |
2083                                   XFixesSelectionWindowDestroyNotifyMask |
2084                                   XFixesSelectionClientCloseNotifyMask);
2085       return TRUE;
2086     }
2087   else
2088 #endif
2089     return FALSE;
2090 }
2091
2092 static gboolean
2093 gdk_x11_display_supports_clipboard_persistence (GdkDisplay *display)
2094 {
2095   Atom clipboard_manager;
2096
2097   /* It might make sense to cache this */
2098   clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
2099   return XGetSelectionOwner (GDK_X11_DISPLAY (display)->xdisplay, clipboard_manager) != None;
2100 }
2101
2102 static void
2103 gdk_x11_display_store_clipboard (GdkDisplay    *display,
2104                                  GdkWindow     *clipboard_window,
2105                                  guint32        time_,
2106                                  const GdkAtom *targets,
2107                                  gint           n_targets)
2108 {
2109   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2110   Atom clipboard_manager, save_targets;
2111
2112   g_return_if_fail (GDK_WINDOW_IS_X11 (clipboard_window));
2113
2114   clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
2115   save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
2116
2117   gdk_x11_display_error_trap_push (display);
2118
2119   if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
2120     {
2121       Atom property_name = None;
2122       Atom *xatoms;
2123       int i;
2124
2125       if (n_targets > 0)
2126         {
2127           property_name = gdk_x11_get_xatom_by_name_for_display (display, "GDK_SELECTION");
2128
2129           xatoms = g_new (Atom, n_targets);
2130           for (i = 0; i < n_targets; i++)
2131             xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
2132
2133           XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
2134                            property_name, XA_ATOM,
2135                            32, PropModeReplace, (guchar *)xatoms, n_targets);
2136           g_free (xatoms);
2137
2138         }
2139
2140       XConvertSelection (display_x11->xdisplay,
2141                          clipboard_manager, save_targets, property_name,
2142                          GDK_WINDOW_XID (clipboard_window), time_);
2143
2144     }
2145   gdk_x11_display_error_trap_pop_ignored (display);
2146
2147 }
2148
2149 /**
2150  * gdk_x11_display_get_user_time:
2151  * @display: (type GdkX11Display): a #GdkDisplay
2152  *
2153  * Returns the timestamp of the last user interaction on
2154  * @display. The timestamp is taken from events caused
2155  * by user interaction such as key presses or pointer
2156  * movements. See gdk_x11_window_set_user_time().
2157  *
2158  * Returns: the timestamp of the last user interaction
2159  *
2160  * Since: 2.8
2161  */
2162 guint32
2163 gdk_x11_display_get_user_time (GdkDisplay *display)
2164 {
2165   return GDK_X11_DISPLAY (display)->user_time;
2166 }
2167
2168 static gboolean
2169 gdk_x11_display_supports_shapes (GdkDisplay *display)
2170 {
2171   return GDK_X11_DISPLAY (display)->have_shapes;
2172 }
2173
2174 static gboolean
2175 gdk_x11_display_supports_input_shapes (GdkDisplay *display)
2176 {
2177   return GDK_X11_DISPLAY (display)->have_input_shapes;
2178 }
2179
2180
2181 /**
2182  * gdk_x11_display_get_startup_notification_id:
2183  * @display: (type GdkX11Display): a #GdkDisplay
2184  *
2185  * Gets the startup notification ID for a display.
2186  *
2187  * Returns: the startup notification ID for @display
2188  *
2189  * Since: 2.12
2190  */
2191 const gchar *
2192 gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
2193 {
2194   return GDK_X11_DISPLAY (display)->startup_notification_id;
2195 }
2196
2197 /**
2198  * gdk_x11_display_set_startup_notification_id:
2199  * @display: (type GdkX11Display): a #GdkDisplay
2200  * @startup_id: the startup notification ID (must be valid utf8)
2201  *
2202  * Sets the startup notification ID for a display.
2203  *
2204  * This is usually taken from the value of the DESKTOP_STARTUP_ID
2205  * environment variable, but in some cases (such as the application not
2206  * being launched using exec()) it can come from other sources.
2207  *
2208  * If the ID contains the string "_TIME" then the portion following that
2209  * string is taken to be the X11 timestamp of the event that triggered
2210  * the application to be launched and the GDK current event time is set
2211  * accordingly.
2212  *
2213  * The startup ID is also what is used to signal that the startup is
2214  * complete (for example, when opening a window or when calling
2215  * gdk_notify_startup_complete()).
2216  *
2217  * Since: 3.0
2218  **/
2219 void
2220 gdk_x11_display_set_startup_notification_id (GdkDisplay  *display,
2221                                              const gchar *startup_id)
2222 {
2223   GdkX11Display *display_x11;
2224   gchar *time_str;
2225
2226   display_x11 = GDK_X11_DISPLAY (display);
2227
2228   g_free (display_x11->startup_notification_id);
2229   display_x11->startup_notification_id = g_strdup (startup_id);
2230
2231   /* Find the launch time from the startup_id, if it's there.  Newer spec
2232    * states that the startup_id is of the form <unique>_TIME<timestamp>
2233    */
2234   time_str = g_strrstr (startup_id, "_TIME");
2235   if (time_str != NULL)
2236     {
2237       gulong retval;
2238       gchar *end;
2239       errno = 0;
2240
2241       /* Skip past the "_TIME" part */
2242       time_str += 5;
2243
2244       retval = strtoul (time_str, &end, 0);
2245       if (end != time_str && errno == 0)
2246         display_x11->user_time = retval;
2247     }
2248
2249   /* Set the startup id on the leader window so it
2250    * applies to all windows we create on this display
2251    */
2252   XChangeProperty (display_x11->xdisplay,
2253                    display_x11->leader_window,
2254                    gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
2255                    gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
2256                    PropModeReplace,
2257                    (guchar *)startup_id, strlen (startup_id));
2258 }
2259
2260 static gboolean
2261 gdk_x11_display_supports_composite (GdkDisplay *display)
2262 {
2263   GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
2264
2265   return x11_display->have_xcomposite &&
2266          x11_display->have_xdamage &&
2267          x11_display->have_xfixes;
2268 }
2269
2270 static GList *
2271 gdk_x11_display_list_devices (GdkDisplay *display)
2272 {
2273   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
2274
2275   return GDK_X11_DISPLAY (display)->input_devices;
2276 }
2277
2278 /**
2279  * gdk_x11_register_standard_event_type:
2280  * @display: a #GdkDisplay
2281  * @event_base: first event type code to register
2282  * @n_events: number of event type codes to register
2283  *
2284  * Registers interest in receiving extension events with type codes
2285  * between @event_base and <literal>event_base + n_events - 1</literal>.
2286  * The registered events must have the window field in the same place
2287  * as core X events (this is not the case for e.g. XKB extension events).
2288  *
2289  * If an event type is registered, events of this type will go through
2290  * global and window-specific filters (see gdk_window_add_filter()).
2291  * Unregistered events will only go through global filters.
2292  * GDK may register the events of some X extensions on its own.
2293  *
2294  * This function should only be needed in unusual circumstances, e.g.
2295  * when filtering XInput extension events on the root window.
2296  *
2297  * Since: 2.4
2298  **/
2299 void
2300 gdk_x11_register_standard_event_type (GdkDisplay *display,
2301                                       gint        event_base,
2302                                       gint        n_events)
2303 {
2304   GdkEventTypeX11 *event_type;
2305   GdkX11Display *display_x11;
2306
2307   display_x11 = GDK_X11_DISPLAY (display);
2308   event_type = g_new (GdkEventTypeX11, 1);
2309
2310   event_type->base = event_base;
2311   event_type->n_events = n_events;
2312
2313   display_x11->event_types = g_slist_prepend (display_x11->event_types, event_type);
2314 }
2315
2316 /* compare X sequence numbers handling wraparound */
2317 #define SEQUENCE_COMPARE(a,op,b) (((long) (a) - (long) (b)) op 0)
2318
2319 /* delivers an error event from the error handler in gdkmain-x11.c */
2320 void
2321 _gdk_x11_display_error_event (GdkDisplay  *display,
2322                               XErrorEvent *error)
2323 {
2324   GdkX11Display *display_x11;
2325   GSList *tmp_list;
2326   gboolean ignore;
2327
2328   display_x11 = GDK_X11_DISPLAY (display);
2329
2330   ignore = FALSE;
2331   for (tmp_list = display_x11->error_traps;
2332        tmp_list != NULL;
2333        tmp_list = tmp_list->next)
2334     {
2335       GdkErrorTrap *trap;
2336
2337       trap = tmp_list->data;
2338
2339       if (SEQUENCE_COMPARE (trap->start_sequence, <=, error->serial) &&
2340           (trap->end_sequence == 0 ||
2341            SEQUENCE_COMPARE (trap->end_sequence, >, error->serial)))
2342         {
2343           ignore = TRUE;
2344           trap->error_code = error->error_code;
2345           break; /* only innermost trap gets the error code */
2346         }
2347     }
2348
2349   if (!ignore)
2350     {
2351       gchar buf[64];
2352       gchar *msg;
2353
2354       XGetErrorText (display_x11->xdisplay, error->error_code, buf, 63);
2355
2356       msg =
2357         g_strdup_printf ("The program '%s' received an X Window System error.\n"
2358                          "This probably reflects a bug in the program.\n"
2359                          "The error was '%s'.\n"
2360                          "  (Details: serial %ld error_code %d request_code %d minor_code %d)\n"
2361                          "  (Note to programmers: normally, X errors are reported asynchronously;\n"
2362                          "   that is, you will receive the error a while after causing it.\n"
2363                          "   To debug your program, run it with the --sync command line\n"
2364                          "   option to change this behavior. You can then get a meaningful\n"
2365                          "   backtrace from your debugger if you break on the gdk_x_error() function.)",
2366                          g_get_prgname (),
2367                          buf,
2368                          error->serial,
2369                          error->error_code,
2370                          error->request_code,
2371                          error->minor_code);
2372
2373 #ifdef G_ENABLE_DEBUG
2374       g_error ("%s", msg);
2375 #else /* !G_ENABLE_DEBUG */
2376       g_warning ("%s\n", msg);
2377
2378       _exit (1);
2379 #endif /* G_ENABLE_DEBUG */
2380     }
2381 }
2382
2383 static void
2384 delete_outdated_error_traps (GdkX11Display *display_x11)
2385 {
2386   GSList *tmp_list;
2387   gulong processed_sequence;
2388
2389   processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
2390
2391   tmp_list = display_x11->error_traps;
2392   while (tmp_list != NULL)
2393     {
2394       GdkErrorTrap *trap = tmp_list->data;
2395
2396       if (trap->end_sequence != 0 &&
2397           SEQUENCE_COMPARE (trap->end_sequence, <=, processed_sequence))
2398         {
2399           GSList *free_me = tmp_list;
2400
2401           tmp_list = tmp_list->next;
2402           display_x11->error_traps =
2403             g_slist_delete_link (display_x11->error_traps, free_me);
2404           g_slice_free (GdkErrorTrap, trap);
2405         }
2406       else
2407         {
2408           tmp_list = tmp_list->next;
2409         }
2410     }
2411 }
2412
2413 /**
2414  * gdk_x11_display_error_trap_push:
2415  * @display: (type GdkX11Display): a #GdkDisplay
2416  *
2417  * Begins a range of X requests on @display for which X error events
2418  * will be ignored. Unignored errors (when no trap is pushed) will abort
2419  * the application. Use gdk_x11_display_error_trap_pop() or
2420  * gdk_x11_display_error_trap_pop_ignored()to lift a trap pushed
2421  * with this function.
2422  *
2423  * See also gdk_error_trap_push() to push a trap on all displays.
2424  *
2425  * Since: 3.0
2426  */
2427 void
2428 gdk_x11_display_error_trap_push (GdkDisplay *display)
2429 {
2430   GdkX11Display *display_x11;
2431   GdkErrorTrap *trap;
2432
2433   display_x11 = GDK_X11_DISPLAY (display);
2434
2435   delete_outdated_error_traps (display_x11);
2436
2437   /* set up the Xlib callback to tell us about errors */
2438   _gdk_x11_error_handler_push ();
2439
2440   trap = g_slice_new0 (GdkErrorTrap);
2441
2442   trap->start_sequence = XNextRequest (display_x11->xdisplay);
2443   trap->error_code = Success;
2444
2445   display_x11->error_traps =
2446     g_slist_prepend (display_x11->error_traps, trap);
2447 }
2448
2449 static gint
2450 gdk_x11_display_error_trap_pop_internal (GdkDisplay *display,
2451                                          gboolean    need_code)
2452 {
2453   GdkX11Display *display_x11;
2454   GdkErrorTrap *trap;
2455   GSList *tmp_list;
2456   int result;
2457
2458   display_x11 = GDK_X11_DISPLAY (display);
2459
2460   g_return_val_if_fail (display_x11->error_traps != NULL, Success);
2461
2462   /* Find the first trap that hasn't been popped already */
2463   trap = NULL; /* quiet gcc */
2464   for (tmp_list = display_x11->error_traps;
2465        tmp_list != NULL;
2466        tmp_list = tmp_list->next)
2467     {
2468       trap = tmp_list->data;
2469
2470       if (trap->end_sequence == 0)
2471         break;
2472     }
2473
2474   g_return_val_if_fail (trap != NULL, Success);
2475   g_assert (trap->end_sequence == 0);
2476
2477   /* May need to sync to fill in trap->error_code if we care about
2478    * getting an error code.
2479    */
2480   if (need_code)
2481     {
2482       gulong processed_sequence;
2483       gulong next_sequence;
2484
2485       next_sequence = XNextRequest (display_x11->xdisplay);
2486       processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
2487
2488       /* If our last request was already processed, there is no point
2489        * in syncing. i.e. if last request was a round trip (or even if
2490        * we got an event with the serial of a non-round-trip)
2491        */
2492       if ((next_sequence - 1) != processed_sequence)
2493         {
2494           XSync (display_x11->xdisplay, False);
2495         }
2496
2497       result = trap->error_code;
2498     }
2499   else
2500     {
2501       result = Success;
2502     }
2503
2504   /* record end of trap, giving us a range of
2505    * error sequences we'll ignore.
2506    */
2507   trap->end_sequence = XNextRequest (display_x11->xdisplay);
2508
2509   /* remove the Xlib callback */
2510   _gdk_x11_error_handler_pop ();
2511
2512   /* we may already be outdated */
2513   delete_outdated_error_traps (display_x11);
2514
2515   return result;
2516 }
2517
2518 /**
2519  * gdk_x11_display_error_trap_pop:
2520  * @display: (type GdkX11Display): the display
2521  *
2522  * Pops the error trap pushed by gdk_x11_display_error_trap_push().
2523  * Will XSync() if necessary and will always block until
2524  * the error is known to have occurred or not occurred,
2525  * so the error code can be returned.
2526  *
2527  * If you don't need to use the return value,
2528  * gdk_x11_display_error_trap_pop_ignored() would be more efficient.
2529  *
2530  * See gdk_error_trap_pop() for the all-displays-at-once
2531  * equivalent.
2532  *
2533  * Since: 3.0
2534  *
2535  * Return value: X error code or 0 on success
2536  */
2537 gint
2538 gdk_x11_display_error_trap_pop (GdkDisplay *display)
2539 {
2540   g_return_val_if_fail (GDK_IS_X11_DISPLAY (display), Success);
2541
2542   return gdk_x11_display_error_trap_pop_internal (display, TRUE);
2543 }
2544
2545 /**
2546  * gdk_x11_display_error_trap_pop_ignored:
2547  * @display: (type GdkX11Display): the display
2548  *
2549  * Pops the error trap pushed by gdk_x11_display_error_trap_push().
2550  * Does not block to see if an error occurred; merely records the
2551  * range of requests to ignore errors for, and ignores those errors
2552  * if they arrive asynchronously.
2553  *
2554  * See gdk_error_trap_pop_ignored() for the all-displays-at-once
2555  * equivalent.
2556  *
2557  * Since: 3.0
2558  */
2559 void
2560 gdk_x11_display_error_trap_pop_ignored (GdkDisplay *display)
2561 {
2562   g_return_if_fail (GDK_IS_X11_DISPLAY (display));
2563
2564   gdk_x11_display_error_trap_pop_internal (display, FALSE);
2565 }
2566
2567 /**
2568  * gdk_x11_set_sm_client_id:
2569  * @sm_client_id: the client id assigned by the session manager when the
2570  *    connection was opened, or %NULL to remove the property.
2571  *
2572  * Sets the <literal>SM_CLIENT_ID</literal> property on the application's leader window so that
2573  * the window manager can save the application's state using the X11R6 ICCCM
2574  * session management protocol.
2575  *
2576  * See the X Session Management Library documentation for more information on
2577  * session management and the Inter-Client Communication Conventions Manual
2578  *
2579  * Since: 2.24
2580  */
2581 void
2582 gdk_x11_set_sm_client_id (const gchar *sm_client_id)
2583 {
2584  GSList *displays, *l;
2585
2586   g_free (gdk_sm_client_id);
2587   gdk_sm_client_id = g_strdup (sm_client_id);
2588
2589   displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
2590   for (l = displays; l; l = l->next)
2591     set_sm_client_id (l->data, sm_client_id);
2592
2593   g_slist_free (displays);
2594 }
2595
2596 static void
2597 gdk_x11_display_event_data_copy (GdkDisplay    *display,
2598                                 const GdkEvent *src,
2599                                 GdkEvent       *dst)
2600 {
2601 }
2602
2603 static void
2604 gdk_x11_display_event_data_free (GdkDisplay *display,
2605                                  GdkEvent *event)
2606 {
2607 }
2608
2609 static gint
2610 pop_error_trap (GdkDisplay *display,
2611                 gboolean    ignored)
2612 {
2613   if (ignored)
2614     {
2615       gdk_x11_display_error_trap_pop_ignored (display);
2616       return Success;
2617     }
2618   else
2619     {
2620       return gdk_x11_display_error_trap_pop (display);
2621     }
2622 }
2623
2624 static GdkKeymap *
2625 gdk_x11_display_get_keymap (GdkDisplay *display)
2626 {
2627   GdkX11Display *display_x11;
2628   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
2629   display_x11 = GDK_X11_DISPLAY (display);
2630
2631   if (!display_x11->keymap)
2632     display_x11->keymap = g_object_new (GDK_TYPE_X11_KEYMAP, NULL);
2633
2634   display_x11->keymap->display = display;
2635
2636   return display_x11->keymap;
2637 }
2638
2639 static void
2640 gdk_x11_display_class_init (GdkX11DisplayClass * class)
2641 {
2642   GObjectClass *object_class = G_OBJECT_CLASS (class);
2643   GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
2644
2645   object_class->dispose = gdk_x11_display_dispose;
2646   object_class->finalize = gdk_x11_display_finalize;
2647
2648   display_class->window_type = GDK_TYPE_X11_WINDOW;
2649
2650   display_class->get_name = gdk_x11_display_get_name;
2651   display_class->get_n_screens = gdk_x11_display_get_n_screens;
2652   display_class->get_screen = gdk_x11_display_get_screen;
2653   display_class->get_default_screen = gdk_x11_display_get_default_screen;
2654   display_class->beep = gdk_x11_display_beep;
2655   display_class->sync = gdk_x11_display_sync;
2656   display_class->flush = gdk_x11_display_flush;
2657   display_class->has_pending = gdk_x11_display_has_pending;
2658   display_class->queue_events = _gdk_x11_display_queue_events;
2659   display_class->get_default_group = gdk_x11_display_get_default_group;
2660   display_class->supports_selection_notification = gdk_x11_display_supports_selection_notification;
2661   display_class->request_selection_notification = gdk_x11_display_request_selection_notification;
2662   display_class->supports_clipboard_persistence = gdk_x11_display_supports_clipboard_persistence;
2663   display_class->store_clipboard = gdk_x11_display_store_clipboard;
2664   display_class->supports_shapes = gdk_x11_display_supports_shapes;
2665   display_class->supports_input_shapes = gdk_x11_display_supports_input_shapes;
2666   display_class->supports_composite = gdk_x11_display_supports_composite;
2667   display_class->list_devices = gdk_x11_display_list_devices;
2668   display_class->get_app_launch_context = _gdk_x11_display_get_app_launch_context;
2669   display_class->get_cursor_for_type = _gdk_x11_display_get_cursor_for_type;
2670   display_class->get_cursor_for_name = _gdk_x11_display_get_cursor_for_name;
2671   display_class->get_cursor_for_pixbuf = _gdk_x11_display_get_cursor_for_pixbuf;
2672   display_class->get_default_cursor_size = _gdk_x11_display_get_default_cursor_size;
2673   display_class->get_maximal_cursor_size = _gdk_x11_display_get_maximal_cursor_size;
2674   display_class->supports_cursor_alpha = _gdk_x11_display_supports_cursor_alpha;
2675   display_class->supports_cursor_color = _gdk_x11_display_supports_cursor_color;
2676
2677   display_class->before_process_all_updates = _gdk_x11_display_before_process_all_updates;
2678   display_class->after_process_all_updates = _gdk_x11_display_after_process_all_updates;
2679   display_class->get_next_serial = gdk_x11_display_get_next_serial;
2680   display_class->notify_startup_complete = gdk_x11_display_notify_startup_complete;
2681   display_class->event_data_copy = gdk_x11_display_event_data_copy;
2682   display_class->event_data_free = gdk_x11_display_event_data_free;
2683   display_class->create_window_impl = _gdk_x11_display_create_window_impl;
2684   display_class->get_keymap = gdk_x11_display_get_keymap;
2685   display_class->push_error_trap = gdk_x11_display_error_trap_push;
2686   display_class->pop_error_trap = pop_error_trap;
2687   display_class->get_selection_owner = _gdk_x11_display_get_selection_owner;
2688   display_class->set_selection_owner = _gdk_x11_display_set_selection_owner;
2689   display_class->send_selection_notify = _gdk_x11_display_send_selection_notify;
2690   display_class->get_selection_property = _gdk_x11_display_get_selection_property;
2691   display_class->convert_selection = _gdk_x11_display_convert_selection;
2692   display_class->text_property_to_utf8_list = _gdk_x11_display_text_property_to_utf8_list;
2693   display_class->utf8_to_string_target = _gdk_x11_display_utf8_to_string_target;
2694 }