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

   1 /* GDK - The GIMP Drawing Kit
   2  * gdkdisplay-x11.c
   3  *
   4  * Copyright 2001 Sun Microsystems Inc.
   5  * Copyright (C) 2004 Nokia Corporation
   6  *
   7  * Erwann Chenede <erwann.chenede@sun.com>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Library General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Library General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Library General Public
  20  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 #include "config.h"
  24
  25 #include "gdkasync.h"
  26 #include "gdkdisplay.h"
  27 #include "gdkeventsource.h"
  28 #include "gdkeventtranslator.h"
  29 #include "gdkinternals.h"
  30 #include "gdkscreen.h"
  31 #include "gdkinternals.h"
  32 #include "gdkdeviceprivate.h"
  33 #include "gdkkeysprivate.h"
  34 #include "gdkdevicemanager.h"
  35 #include "xsettings-client.h"
  36 #include "gdkdisplay-x11.h"
  37 #include "gdkprivate-x11.h"
  38 #include "gdkscreen-x11.h"
  39
  40 #include <glib.h>
  41 #include <glib/gprintf.h>
  42 #include <stdlib.h>
  43 #include <string.h>
  44 #include <errno.h>
  45 #include <unistd.h>
  46
  47 #include <X11/Xatom.h>
  48
  49 #ifdef HAVE_XKB
  50 #include <X11/XKBlib.h>
  51 #endif
  52
  53 #ifdef HAVE_XFIXES
  54 #include <X11/extensions/Xfixes.h>
  55 #endif
  56
  57 #include <X11/extensions/shape.h>
  58
  59 #ifdef HAVE_XCOMPOSITE
  60 #include <X11/extensions/Xcomposite.h>
  61 #endif
  62
  63 #ifdef HAVE_XDAMAGE
  64 #include <X11/extensions/Xdamage.h>
  65 #endif
  66
  67 #ifdef HAVE_RANDR
  68 #include <X11/extensions/Xrandr.h>
  69 #endif
  70
  71 typedef struct _GdkErrorTrap  GdkErrorTrap;
  72
  73 struct _GdkErrorTrap
  74 {
  75   /* Next sequence when trap was pushed, i.e. first sequence to
  76    * ignore
  77    */
  78   gulong start_sequence;
  79
  80   /* Next sequence when trap was popped, i.e. first sequence
  81    * to not ignore. 0 if trap is still active.
  82    */
  83   gulong end_sequence;
  84
  85   /* Most recent error code within the sequence */
  86   int error_code;
  87 };
  88
  89 static void   gdk_x11_display_dispose            (GObject            *object);
  90 static void   gdk_x11_display_finalize           (GObject            *object);
  91
  92 static void     gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface);
  93
  94 static gboolean gdk_x11_display_translate_event (GdkEventTranslator *translator,
  95                                                  GdkDisplay         *display,
  96                                                  GdkEvent           *event,
  97                                                  XEvent             *xevent);
  98
  99 static void gdk_internal_connection_watch (Display  *display,
 100                                            XPointer  arg,
 101                                            gint      fd,
 102                                            gboolean  opening,
 103                                            XPointer *watch_data);
 104
 105 typedef struct _GdkEventTypeX11 GdkEventTypeX11;
 106
 107 struct _GdkEventTypeX11
 108 {
 109   gint base;
 110   gint n_events;
 111 };
 112
 113 /* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
 114  * but including them here has the side-effect of getting them
 115  * into the internal Xlib cache
 116  */
 117 static const char *const precache_atoms[] = {
 118   "UTF8_STRING",
 119   "WM_CLIENT_LEADER",
 120   "WM_DELETE_WINDOW",
 121   "WM_ICON_NAME",
 122   "WM_LOCALE_NAME",
 123   "WM_NAME",
 124   "WM_PROTOCOLS",
 125   "WM_TAKE_FOCUS",
 126   "WM_WINDOW_ROLE",
 127   "_NET_ACTIVE_WINDOW",
 128   "_NET_CURRENT_DESKTOP",
 129   "_NET_FRAME_EXTENTS",
 130   "_NET_STARTUP_ID",
 131   "_NET_WM_CM_S0",
 132   "_NET_WM_DESKTOP",
 133   "_NET_WM_ICON",
 134   "_NET_WM_ICON_NAME",
 135   "_NET_WM_NAME",
 136   "_NET_WM_PID",
 137   "_NET_WM_PING",
 138   "_NET_WM_STATE",
 139   "_NET_WM_STATE_ABOVE",
 140   "_NET_WM_STATE_BELOW",
 141   "_NET_WM_STATE_FULLSCREEN",
 142   "_NET_WM_STATE_MODAL",
 143   "_NET_WM_STATE_MAXIMIZED_VERT",
 144   "_NET_WM_STATE_MAXIMIZED_HORZ",
 145   "_NET_WM_STATE_SKIP_TASKBAR",
 146   "_NET_WM_STATE_SKIP_PAGER",
 147   "_NET_WM_STATE_STICKY",
 148   "_NET_WM_SYNC_REQUEST",
 149   "_NET_WM_SYNC_REQUEST_COUNTER",
 150   "_NET_WM_WINDOW_TYPE",
 151   "_NET_WM_WINDOW_TYPE_NORMAL",
 152   "_NET_WM_USER_TIME",
 153   "_NET_VIRTUAL_ROOTS",
 154   "GDK_SELECTION",
 155   "_NET_WM_STATE_FOCUSED"
 156 };
 157
 158 static char *gdk_sm_client_id;
 159
 160 G_DEFINE_TYPE_WITH_CODE (GdkX11Display, gdk_x11_display, GDK_TYPE_DISPLAY,
 161                          G_IMPLEMENT_INTERFACE (GDK_TYPE_EVENT_TRANSLATOR,
 162                                                 gdk_x11_display_event_translator_init))
 163
 164
 165 static void
 166 gdk_x11_display_init (GdkX11Display *display)
 167 {
 168   _gdk_x11_display_manager_add_display (gdk_display_manager_get (),
 169                                         GDK_DISPLAY (display));
 170 }
 171
 172 static void
 173 gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface)
 174 {
 175   iface->translate_event = gdk_x11_display_translate_event;
 176 }
 177
 178 static void
 179 do_net_wm_state_changes (GdkWindow *window)
 180 {
 181   GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
 182   GdkWindowState old_state;
 183
 184   if (GDK_WINDOW_DESTROYED (window) ||
 185       gdk_window_get_window_type (window) != GDK_WINDOW_TOPLEVEL)
 186     return;
 187
 188   old_state = gdk_window_get_state (window);
 189
 190   /* For found_sticky to remain TRUE, we have to also be on desktop
 191    * 0xFFFFFFFF
 192    */
 193   if (old_state & GDK_WINDOW_STATE_STICKY)
 194     {
 195       if (!(toplevel->have_sticky && toplevel->on_all_desktops))
 196         gdk_synthesize_window_state (window,
 197                                      GDK_WINDOW_STATE_STICKY,
 198                                      0);
 199     }
 200   else
 201     {
 202       if (toplevel->have_sticky && toplevel->on_all_desktops)
 203         gdk_synthesize_window_state (window,
 204                                      0,
 205                                      GDK_WINDOW_STATE_STICKY);
 206     }
 207
 208   if (old_state & GDK_WINDOW_STATE_FULLSCREEN)
 209     {
 210       if (!toplevel->have_fullscreen)
 211         gdk_synthesize_window_state (window,
 212                                      GDK_WINDOW_STATE_FULLSCREEN,
 213                                      0);
 214     }
 215   else
 216     {
 217       if (toplevel->have_fullscreen)
 218         gdk_synthesize_window_state (window,
 219                                      0,
 220                                      GDK_WINDOW_STATE_FULLSCREEN);
 221     }
 222
 223   /* Our "maximized" means both vertical and horizontal; if only one,
 224    * we don't expose that via GDK
 225    */
 226   if (old_state & GDK_WINDOW_STATE_MAXIMIZED)
 227     {
 228       if (!(toplevel->have_maxvert && toplevel->have_maxhorz))
 229         gdk_synthesize_window_state (window,
 230                                      GDK_WINDOW_STATE_MAXIMIZED,
 231                                      0);
 232     }
 233   else
 234     {
 235       if (toplevel->have_maxvert && toplevel->have_maxhorz)
 236         gdk_synthesize_window_state (window,
 237                                      0,
 238                                      GDK_WINDOW_STATE_MAXIMIZED);
 239     }
 240
 241   if (old_state & GDK_WINDOW_STATE_FOCUSED)
 242     {
 243       if (!toplevel->have_focused)
 244         gdk_synthesize_window_state (window,
 245                                      GDK_WINDOW_STATE_FOCUSED,
 246                                      0);
 247     }
 248   else
 249     {
 250       if (toplevel->have_focused)
 251         gdk_synthesize_window_state (window,
 252                                      0,
 253                                      GDK_WINDOW_STATE_FOCUSED);
 254     }
 255
 256   if (old_state & GDK_WINDOW_STATE_ICONIFIED)
 257     {
 258       if (!toplevel->have_hidden)
 259         gdk_synthesize_window_state (window,
 260                                      GDK_WINDOW_STATE_ICONIFIED,
 261                                      0);
 262     }
 263   else
 264     {
 265       if (toplevel->have_hidden)
 266         gdk_synthesize_window_state (window,
 267                                      0,
 268                                      GDK_WINDOW_STATE_ICONIFIED);
 269     }
 270 }
 271
 272 static void
 273 gdk_check_wm_desktop_changed (GdkWindow *window)
 274 {
 275   GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
 276   GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
 277
 278   Atom type;
 279   gint format;
 280   gulong nitems;
 281   gulong bytes_after;
 282   guchar *data;
 283   gulong *desktop;
 284
 285   type = None;
 286   gdk_x11_display_error_trap_push (display);
 287   XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
 288                       GDK_WINDOW_XID (window),
 289                       gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"),
 290                       0, G_MAXLONG, False, XA_CARDINAL, &type,
 291                       &format, &nitems,
 292                       &bytes_after, &data);
 293   gdk_x11_display_error_trap_pop_ignored (display);
 294
 295   if (type != None)
 296     {
 297       desktop = (gulong *)data;
 298       toplevel->on_all_desktops = ((*desktop & 0xFFFFFFFF) == 0xFFFFFFFF);
 299       XFree (desktop);
 300     }
 301   else
 302     toplevel->on_all_desktops = FALSE;
 303
 304   do_net_wm_state_changes (window);
 305 }
 306
 307 static void
 308 gdk_check_wm_state_changed (GdkWindow *window)
 309 {
 310   GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
 311   GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
 312   GdkScreen *screen = GDK_WINDOW_SCREEN (window);
 313
 314   Atom type;
 315   gint format;
 316   gulong nitems;
 317   gulong bytes_after;
 318   guchar *data;
 319   Atom *atoms = NULL;
 320   gulong i;
 321
 322   gboolean had_sticky = toplevel->have_sticky;
 323
 324   toplevel->have_sticky = FALSE;
 325   toplevel->have_maxvert = FALSE;
 326   toplevel->have_maxhorz = FALSE;
 327   toplevel->have_fullscreen = FALSE;
 328   toplevel->have_focused = FALSE;
 329   toplevel->have_hidden = FALSE;
 330
 331   type = None;
 332   gdk_x11_display_error_trap_push (display);
 333   XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window),
 334                       gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"),
 335                       0, G_MAXLONG, False, XA_ATOM, &type, &format, &nitems,
 336                       &bytes_after, &data);
 337   gdk_x11_display_error_trap_pop_ignored (display);
 338
 339   if (type != None)
 340     {
 341       Atom sticky_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_STICKY");
 342       Atom maxvert_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_VERT");
 343       Atom maxhorz_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_HORZ");
 344       Atom fullscreen_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FULLSCREEN");
 345       Atom focused_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FOCUSED");
 346       Atom hidden_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_HIDDEN");
 347
 348       atoms = (Atom *)data;
 349
 350       i = 0;
 351       while (i < nitems)
 352         {
 353           if (atoms[i] == sticky_atom)
 354             toplevel->have_sticky = TRUE;
 355           else if (atoms[i] == maxvert_atom)
 356             toplevel->have_maxvert = TRUE;
 357           else if (atoms[i] == maxhorz_atom)
 358             toplevel->have_maxhorz = TRUE;
 359           else if (atoms[i] == fullscreen_atom)
 360             toplevel->have_fullscreen = TRUE;
 361           else if (atoms[i] == focused_atom)
 362             toplevel->have_focused = TRUE;
 363           else if (atoms[i] == hidden_atom)
 364             toplevel->have_hidden = TRUE;
 365
 366           ++i;
 367         }
 368
 369       XFree (atoms);
 370     }
 371
 372   if (!gdk_x11_screen_supports_net_wm_hint (screen,
 373                                             gdk_atom_intern_static_string ("_NET_WM_STATE_FOCUSED")))
 374     toplevel->have_focused = TRUE;
 375
 376   /* When have_sticky is turned on, we have to check the DESKTOP property
 377    * as well.
 378    */
 379   if (toplevel->have_sticky && !had_sticky)
 380     gdk_check_wm_desktop_changed (window);
 381   else
 382     do_net_wm_state_changes (window);
 383 }
 384
 385 static Window
 386 get_event_xwindow (XEvent             *xevent)
 387 {
 388   Window xwindow;
 389
 390   switch (xevent->type)
 391     {
 392     case DestroyNotify:
 393       xwindow = xevent->xdestroywindow.window;
 394       break;
 395     case UnmapNotify:
 396       xwindow = xevent->xunmap.window;
 397       break;
 398     case MapNotify:
 399       xwindow = xevent->xmap.window;
 400       break;
 401     case ConfigureNotify:
 402       xwindow = xevent->xconfigure.window;
 403       break;
 404     case ReparentNotify:
 405       xwindow = xevent->xreparent.window;
 406       break;
 407     case GravityNotify:
 408       xwindow = xevent->xgravity.window;
 409       break;
 410     case CirculateNotify:
 411       xwindow = xevent->xcirculate.window;
 412       break;
 413     default:
 414       xwindow = xevent->xany.window;
 415     }
 416
 417   return xwindow;
 418 }
 419
 420 static gboolean
 421 gdk_x11_display_translate_event (GdkEventTranslator *translator,
 422                                  GdkDisplay         *display,
 423                                  GdkEvent           *event,
 424                                  XEvent             *xevent)
 425 {
 426   Window xwindow;
 427   GdkWindow *window;
 428   gboolean is_substructure;
 429   GdkWindowImplX11 *window_impl = NULL;
 430   GdkScreen *screen = NULL;
 431   GdkX11Screen *x11_screen = NULL;
 432   GdkToplevelX11 *toplevel = NULL;
 433   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
 434   gboolean return_val;
 435
 436   /* Find the GdkWindow that this event relates to. If that's
 437    * not the same as the window that the event was sent to,
 438    * we are getting an event from SubstructureNotifyMask.
 439    * We ignore such events for internal operation, but we
 440    * need to report them to the application because of
 441    * GDK_SUBSTRUCTURE_MASK (which should be removed at next
 442    * opportunity.) The most likely reason for getting these
 443    * events is when we are used in the Metacity or Mutter
 444    * window managers.
 445    */
 446   xwindow = get_event_xwindow (xevent);
 447   is_substructure = xwindow != xevent->xany.window;
 448
 449   window = gdk_x11_window_lookup_for_display (display, xwindow);
 450   if (window)
 451     {
 452       /* We may receive events such as NoExpose/GraphicsExpose
 453        * and ShmCompletion for pixmaps
 454        */
 455       if (!GDK_IS_WINDOW (window))
 456         return FALSE;
 457
 458       screen = GDK_WINDOW_SCREEN (window);
 459       x11_screen = GDK_X11_SCREEN (screen);
 460       toplevel = _gdk_x11_window_get_toplevel (window);
 461       window_impl = GDK_WINDOW_IMPL_X11 (window->impl);
 462
 463       g_object_ref (window);
 464     }
 465
 466   event->any.window = window;
 467   event->any.send_event = xevent->xany.send_event ? TRUE : FALSE;
 468
 469   if (window && GDK_WINDOW_DESTROYED (window))
 470     {
 471       if (xevent->type != DestroyNotify)
 472         {
 473           return_val = FALSE;
 474           goto done;
 475         }
 476     }
 477
 478   if (xevent->type == DestroyNotify && !is_substructure)
 479     {
 480       int i, n;
 481
 482       n = gdk_display_get_n_screens (display);
 483       for (i = 0; i < n; i++)
 484         {
 485           screen = gdk_display_get_screen (display, i);
 486           x11_screen = GDK_X11_SCREEN (screen);
 487
 488           if (x11_screen->wmspec_check_window == xevent->xdestroywindow.window)
 489             {
 490               x11_screen->wmspec_check_window = None;
 491               x11_screen->last_wmspec_check_time = 0;
 492               g_free (x11_screen->window_manager_name);
 493               x11_screen->window_manager_name = g_strdup ("unknown");
 494
 495               /* careful, reentrancy */
 496               _gdk_x11_screen_window_manager_changed (screen);
 497
 498               return_val = FALSE;
 499               goto done;
 500             }
 501         }
 502     }
 503
 504   /* We do a "manual" conversion of the XEvent to a
 505    *  GdkEvent. The structures are mostly the same so
 506    *  the conversion is fairly straightforward. We also
 507    *  optionally print debugging info regarding events
 508    *  received.
 509    */
 510
 511   return_val = TRUE;
 512
 513   switch (xevent->type)
 514     {
 515     case KeymapNotify:
 516       GDK_NOTE (EVENTS,
 517                 g_message ("keymap notify"));
 518
 519       /* Not currently handled */
 520       return_val = FALSE;
 521       break;
 522
 523     case Expose:
 524       GDK_NOTE (EVENTS,
 525                 g_message ("expose:\t\twindow: %ld  %d  x,y: %d %d  w,h: %d %d%s",
 526                            xevent->xexpose.window, xevent->xexpose.count,
 527                            xevent->xexpose.x, xevent->xexpose.y,
 528                            xevent->xexpose.width, xevent->xexpose.height,
 529                            event->any.send_event ? " (send)" : ""));
 530
 531       if (window == NULL)
 532         {
 533           return_val = FALSE;
 534           break;
 535         }
 536
 537       {
 538         GdkRectangle expose_rect;
 539
 540         expose_rect.x = xevent->xexpose.x;
 541         expose_rect.y = xevent->xexpose.y;
 542         expose_rect.width = xevent->xexpose.width;
 543         expose_rect.height = xevent->xexpose.height;
 544
 545         _gdk_x11_window_process_expose (window, xevent->xexpose.serial, &expose_rect);
 546         return_val = FALSE;
 547       }
 548
 549       break;
 550
 551     case GraphicsExpose:
 552       {
 553         GdkRectangle expose_rect;
 554
 555         GDK_NOTE (EVENTS,
 556                   g_message ("graphics expose:\tdrawable: %ld",
 557                              xevent->xgraphicsexpose.drawable));
 558
 559         if (window == NULL)
 560           {
 561             return_val = FALSE;
 562             break;
 563           }
 564
 565         expose_rect.x = xevent->xgraphicsexpose.x;
 566         expose_rect.y = xevent->xgraphicsexpose.y;
 567         expose_rect.width = xevent->xgraphicsexpose.width;
 568         expose_rect.height = xevent->xgraphicsexpose.height;
 569
 570         _gdk_x11_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect);
 571         return_val = FALSE;
 572       }
 573       break;
 574
 575     case VisibilityNotify:
 576 #ifdef G_ENABLE_DEBUG
 577       if (_gdk_debug_flags & GDK_DEBUG_EVENTS)
 578         switch (xevent->xvisibility.state)
 579           {
 580           case VisibilityFullyObscured:
 581             g_message ("visibility notify:\twindow: %ld  none",
 582                        xevent->xvisibility.window);
 583             break;
 584           case VisibilityPartiallyObscured:
 585             g_message ("visibility notify:\twindow: %ld  partial",
 586                        xevent->xvisibility.window);
 587             break;
 588           case VisibilityUnobscured:
 589             g_message ("visibility notify:\twindow: %ld  full",
 590                        xevent->xvisibility.window);
 591             break;
 592           }
 593 #endif /* G_ENABLE_DEBUG */
 594
 595       if (window == NULL)
 596         {
 597           return_val = FALSE;
 598           break;
 599         }
 600
 601       event->visibility.type = GDK_VISIBILITY_NOTIFY;
 602       event->visibility.window = window;
 603
 604       switch (xevent->xvisibility.state)
 605         {
 606         case VisibilityFullyObscured:
 607           event->visibility.state = GDK_VISIBILITY_FULLY_OBSCURED;
 608           break;
 609
 610         case VisibilityPartiallyObscured:
 611           event->visibility.state = GDK_VISIBILITY_PARTIAL;
 612           break;
 613
 614         case VisibilityUnobscured:
 615           event->visibility.state = GDK_VISIBILITY_UNOBSCURED;
 616           break;
 617         }
 618
 619       break;
 620
 621     case CreateNotify:
 622       GDK_NOTE (EVENTS,
 623                 g_message ("create notify:\twindow: %ld  x,y: %d %d     w,h: %d %d  b-w: %d  parent: %ld         ovr: %d",
 624                            xevent->xcreatewindow.window,
 625                            xevent->xcreatewindow.x,
 626                            xevent->xcreatewindow.y,
 627                            xevent->xcreatewindow.width,
 628                            xevent->xcreatewindow.height,
 629                            xevent->xcreatewindow.border_width,
 630                            xevent->xcreatewindow.parent,
 631                            xevent->xcreatewindow.override_redirect));
 632       /* not really handled */
 633       break;
 634
 635     case DestroyNotify:
 636       GDK_NOTE (EVENTS,
 637                 g_message ("destroy notify:\twindow: %ld",
 638                            xevent->xdestroywindow.window));
 639
 640       if (!is_substructure)
 641         {
 642           event->any.type = GDK_DESTROY;
 643           event->any.window = window;
 644
 645           return_val = window && !GDK_WINDOW_DESTROYED (window);
 646
 647           if (window && GDK_WINDOW_XID (window) != x11_screen->xroot_window)
 648             gdk_window_destroy_notify (window);
 649         }
 650       else
 651         return_val = FALSE;
 652
 653       break;
 654
 655     case UnmapNotify:
 656       GDK_NOTE (EVENTS,
 657                 g_message ("unmap notify:\t\twindow: %ld",
 658                            xevent->xmap.window));
 659
 660       event->any.type = GDK_UNMAP;
 661       event->any.window = window;
 662
 663       if (window && !is_substructure)
 664         {
 665           /* If the WM supports the _NET_WM_STATE_HIDDEN hint, we do not want to
 666            * interpret UnmapNotify events as implying iconic state.
 667            * http://bugzilla.gnome.org/show_bug.cgi?id=590726.
 668            */
 669           if (screen &&
 670               !gdk_x11_screen_supports_net_wm_hint (screen,
 671                                                     gdk_atom_intern_static_string ("_NET_WM_STATE_HIDDEN")))
 672             {
 673               /* If we are shown (not withdrawn) and get an unmap, it means we were
 674                * iconified in the X sense. If we are withdrawn, and get an unmap, it
 675                * means we hid the window ourselves, so we will have already flipped
 676                * the iconified bit off.
 677                */
 678               if (GDK_WINDOW_IS_MAPPED (window))
 679                 gdk_synthesize_window_state (window,
 680                                              0,
 681                                              GDK_WINDOW_STATE_ICONIFIED);
 682             }
 683
 684           if (window_impl->toplevel &&
 685               window_impl->toplevel->frame_pending)
 686             {
 687               window_impl->toplevel->frame_pending = FALSE;
 688               gdk_frame_clock_thaw (gdk_window_get_frame_clock (event->any.window));
 689             }
 690
 691           if (toplevel)
 692             gdk_window_freeze_toplevel_updates_libgtk_only (window);
 693
 694           _gdk_x11_window_grab_check_unmap (window, xevent->xany.serial);
 695         }
 696
 697       break;
 698
 699     case MapNotify:
 700       GDK_NOTE (EVENTS,
 701                 g_message ("map notify:\t\twindow: %ld",
 702                            xevent->xmap.window));
 703
 704       event->any.type = GDK_MAP;
 705       event->any.window = window;
 706
 707       if (window && !is_substructure)
 708         {
 709           /* Unset iconified if it was set */
 710           if (window->state & GDK_WINDOW_STATE_ICONIFIED)
 711             gdk_synthesize_window_state (window,
 712                                          GDK_WINDOW_STATE_ICONIFIED,
 713                                          0);
 714
 715           if (toplevel)
 716             gdk_window_thaw_toplevel_updates_libgtk_only (window);
 717         }
 718
 719       break;
 720
 721     case ReparentNotify:
 722       GDK_NOTE (EVENTS,
 723                 g_message ("reparent notify:\twindow: %ld  x,y: %d %d  parent: %ld      ovr: %d",
 724                            xevent->xreparent.window,
 725                            xevent->xreparent.x,
 726                            xevent->xreparent.y,
 727                            xevent->xreparent.parent,
 728                            xevent->xreparent.override_redirect));
 729
 730       /* Not currently handled */
 731       return_val = FALSE;
 732       break;
 733
 734     case ConfigureNotify:
 735       GDK_NOTE (EVENTS,
 736                 g_message ("configure notify:\twindow: %ld  x,y: %d %d  w,h: %d %d  b-w: %d  above: %ld  ovr: %d%s",
 737                            xevent->xconfigure.window,
 738                            xevent->xconfigure.x,
 739                            xevent->xconfigure.y,
 740                            xevent->xconfigure.width,
 741                            xevent->xconfigure.height,
 742                            xevent->xconfigure.border_width,
 743                            xevent->xconfigure.above,
 744                            xevent->xconfigure.override_redirect,
 745                            !window
 746                            ? " (discarding)"
 747                            : window->window_type == GDK_WINDOW_CHILD
 748                            ? " (discarding child)"
 749                            : xevent->xconfigure.event != xevent->xconfigure.window
 750                            ? " (discarding substructure)"
 751                            : ""));
 752       if (window && GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
 753         {
 754           window->width = xevent->xconfigure.width;
 755           window->height = xevent->xconfigure.height;
 756
 757           _gdk_window_update_size (window);
 758           _gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl));
 759           _gdk_x11_screen_size_changed (screen, xevent);
 760         }
 761
 762 #ifdef HAVE_XSYNC
 763       if (!is_substructure && toplevel && display_x11->use_sync && toplevel->pending_counter_value != 0)
 764         {
 765           toplevel->configure_counter_value = toplevel->pending_counter_value;
 766           toplevel->pending_counter_value = 0;
 767         }
 768 #endif
 769
 770     if (!window ||
 771           xevent->xconfigure.event != xevent->xconfigure.window ||
 772           GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD ||
 773           GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
 774         return_val = FALSE;
 775       else
 776         {
 777           event->configure.type = GDK_CONFIGURE;
 778           event->configure.window = window;
 779           event->configure.width = xevent->xconfigure.width;
 780           event->configure.height = xevent->xconfigure.height;
 781
 782           if (!xevent->xconfigure.send_event &&
 783               !xevent->xconfigure.override_redirect &&
 784               !GDK_WINDOW_DESTROYED (window))
 785             {
 786               gint tx = 0;
 787               gint ty = 0;
 788               Window child_window = 0;
 789
 790               gdk_x11_display_error_trap_push (display);
 791               if (XTranslateCoordinates (GDK_WINDOW_XDISPLAY (window),
 792                                          GDK_WINDOW_XID (window),
 793                                          x11_screen->xroot_window,
 794                                          0, 0,
 795                                          &tx, &ty,
 796                                          &child_window))
 797                 {
 798                   event->configure.x = tx;
 799                   event->configure.y = ty;
 800                 }
 801               gdk_x11_display_error_trap_pop_ignored (display);
 802             }
 803           else
 804             {
 805               event->configure.x = xevent->xconfigure.x;
 806               event->configure.y = xevent->xconfigure.y;
 807             }
 808           if (!is_substructure)
 809             {
 810               window->x = event->configure.x;
 811               window->y = event->configure.y;
 812               window->width = xevent->xconfigure.width;
 813               window->height = xevent->xconfigure.height;
 814
 815               _gdk_window_update_size (window);
 816               _gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl));
 817
 818               if (window->resize_count >= 1)
 819                 {
 820                   window->resize_count -= 1;
 821
 822                   if (window->resize_count == 0)
 823                     _gdk_x11_moveresize_configure_done (display, window);
 824                 }
 825             }
 826         }
 827       break;
 828
 829     case PropertyNotify:
 830       GDK_NOTE (EVENTS,
 831                 g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s",
 832                            xevent->xproperty.window,
 833                            xevent->xproperty.atom,
 834                            "\"",
 835                            gdk_x11_get_xatom_name_for_display (display, xevent->xproperty.atom),
 836                            "\""));
 837
 838       if (window == NULL)
 839         {
 840           return_val = FALSE;
 841           break;
 842         }
 843
 844       /* We compare with the serial of the last time we mapped the
 845        * window to avoid refetching properties that we set ourselves
 846        */
 847       if (toplevel &&
 848           xevent->xproperty.serial >= toplevel->map_serial)
 849         {
 850           if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"))
 851             gdk_check_wm_state_changed (window);
 852
 853           if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"))
 854             gdk_check_wm_desktop_changed (window);
 855         }
 856
 857       if (window->event_mask & GDK_PROPERTY_CHANGE_MASK)
 858         {
 859           event->property.type = GDK_PROPERTY_NOTIFY;
 860           event->property.window = window;
 861           event->property.atom = gdk_x11_xatom_to_atom_for_display (display, xevent->xproperty.atom);
 862           event->property.time = xevent->xproperty.time;
 863           event->property.state = xevent->xproperty.state;
 864         }
 865       else
 866         return_val = FALSE;
 867
 868       break;
 869
 870     case SelectionClear:
 871       GDK_NOTE (EVENTS,
 872                 g_message ("selection clear:\twindow: %ld",
 873                            xevent->xproperty.window));
 874
 875       if (_gdk_x11_selection_filter_clear_event (&xevent->xselectionclear))
 876         {
 877           event->selection.type = GDK_SELECTION_CLEAR;
 878           event->selection.window = window;
 879           event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionclear.selection);
 880           event->selection.time = xevent->xselectionclear.time;
 881         }
 882       else
 883         return_val = FALSE;
 884
 885       break;
 886
 887     case SelectionRequest:
 888       GDK_NOTE (EVENTS,
 889                 g_message ("selection request:\twindow: %ld",
 890                            xevent->xproperty.window));
 891
 892       event->selection.type = GDK_SELECTION_REQUEST;
 893       event->selection.window = window;
 894       event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.selection);
 895       event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.target);
 896       event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.property);
 897       if (xevent->xselectionrequest.requestor != None)
 898         event->selection.requestor = gdk_x11_window_foreign_new_for_display (display,
 899                                                                              xevent->xselectionrequest.requestor);
 900       else
 901         event->selection.requestor = NULL;
 902       event->selection.time = xevent->xselectionrequest.time;
 903
 904       break;
 905
 906     case SelectionNotify:
 907       GDK_NOTE (EVENTS,
 908                 g_message ("selection notify:\twindow: %ld",
 909                            xevent->xproperty.window));
 910
 911       event->selection.type = GDK_SELECTION_NOTIFY;
 912       event->selection.window = window;
 913       event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.selection);
 914       event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.target);
 915       if (xevent->xselection.property == None)
 916         event->selection.property = GDK_NONE;
 917       else
 918         event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.property);
 919       event->selection.time = xevent->xselection.time;
 920
 921       break;
 922
 923     case ColormapNotify:
 924       GDK_NOTE (EVENTS,
 925                 g_message ("colormap notify:\twindow: %ld",
 926                            xevent->xcolormap.window));
 927
 928       /* Not currently handled */
 929       return_val = FALSE;
 930       break;
 931
 932     case ClientMessage:
 933       GDK_NOTE (EVENTS,
 934                 g_message ("client message:\twindow: %ld",
 935                            xevent->xclient.window));
 936
 937       /* Not currently handled */
 938       return_val = FALSE;
 939       break;
 940
 941     case MappingNotify:
 942       GDK_NOTE (EVENTS,
 943                 g_message ("mapping notify"));
 944
 945       /* Let XLib know that there is a new keyboard mapping.
 946        */
 947       XRefreshKeyboardMapping (&xevent->xmapping);
 948       _gdk_x11_keymap_keys_changed (display);
 949       return_val = FALSE;
 950       break;
 951
 952     default:
 953 #ifdef HAVE_XFIXES
 954       if (xevent->type - display_x11->xfixes_event_base == XFixesSelectionNotify)
 955         {
 956           XFixesSelectionNotifyEvent *selection_notify = (XFixesSelectionNotifyEvent *)xevent;
 957
 958           _gdk_x11_screen_process_owner_change (screen, xevent);
 959
 960           event->owner_change.type = GDK_OWNER_CHANGE;
 961           event->owner_change.window = window;
 962           if (selection_notify->owner != None)
 963             event->owner_change.owner = gdk_x11_window_foreign_new_for_display (display,
 964                                                                                 selection_notify->owner);
 965           else
 966             event->owner_change.owner = NULL;
 967           event->owner_change.reason = selection_notify->subtype;
 968           event->owner_change.selection =
 969             gdk_x11_xatom_to_atom_for_display (display,
 970                                                selection_notify->selection);
 971           event->owner_change.time = selection_notify->timestamp;
 972           event->owner_change.selection_time = selection_notify->selection_timestamp;
 973
 974           return_val = TRUE;
 975         }
 976       else
 977 #endif
 978 #ifdef HAVE_RANDR
 979       if (xevent->type - display_x11->xrandr_event_base == RRScreenChangeNotify ||
 980           xevent->type - display_x11->xrandr_event_base == RRNotify)
 981         {
 982           if (screen)
 983             _gdk_x11_screen_size_changed (screen, xevent);
 984         }
 985       else
 986 #endif
 987 #if defined(HAVE_XCOMPOSITE) && defined (HAVE_XDAMAGE) && defined (HAVE_XFIXES)
 988       if (display_x11->have_xdamage && window && window->composited &&
 989           xevent->type == display_x11->xdamage_event_base + XDamageNotify &&
 990           ((XDamageNotifyEvent *) xevent)->damage == window_impl->damage)
 991         {
 992           XDamageNotifyEvent *damage_event = (XDamageNotifyEvent *) xevent;
 993           XserverRegion repair;
 994           GdkRectangle rect;
 995
 996           rect.x = window->x + damage_event->area.x;
 997           rect.y = window->y + damage_event->area.y;
 998           rect.width = damage_event->area.width;
 999           rect.height = damage_event->area.height;
1000
1001           repair = XFixesCreateRegion (display_x11->xdisplay,
1002                                        &damage_event->area, 1);
1003           XDamageSubtract (display_x11->xdisplay,
1004                            window_impl->damage,
1005                            repair, None);
1006           XFixesDestroyRegion (display_x11->xdisplay, repair);
1007
1008           if (window->parent != NULL)
1009            _gdk_x11_window_process_expose (window->parent,
1010                                            damage_event->serial, &rect);
1011
1012           return_val = TRUE;
1013         }
1014       else
1015 #endif
1016 #ifdef HAVE_XKB
1017       if (xevent->type == display_x11->xkb_event_type)
1018         {
1019           XkbEvent *xkb_event = (XkbEvent *) xevent;
1020
1021           switch (xkb_event->any.xkb_type)
1022             {
1023             case XkbNewKeyboardNotify:
1024             case XkbMapNotify:
1025               _gdk_x11_keymap_keys_changed (display);
1026
1027               return_val = FALSE;
1028               break;
1029
1030             case XkbStateNotify:
1031               _gdk_x11_keymap_state_changed (display, xevent);
1032               break;
1033             }
1034         }
1035       else
1036 #endif
1037         return_val = FALSE;
1038     }
1039
1040  done:
1041   if (return_val)
1042     {
1043       if (event->any.window)
1044         g_object_ref (event->any.window);
1045     }
1046   else
1047     {
1048       /* Mark this event as having no resources to be freed */
1049       event->any.window = NULL;
1050       event->any.type = GDK_NOTHING;
1051     }
1052
1053   if (window)
1054     g_object_unref (window);
1055
1056   return return_val;
1057 }
1058
1059 static GdkFrameTimings *
1060 find_frame_timings (GdkFrameClock *clock,
1061                     guint64        serial)
1062 {
1063   GdkFrameHistory *history = gdk_frame_clock_get_history (clock);
1064   gint64 start_frame, end_frame, i;
1065
1066   start_frame = gdk_frame_history_get_start (history);
1067   end_frame = gdk_frame_history_get_frame_counter (history);
1068   for (i = end_frame; i >= start_frame; i--)
1069     {
1070       GdkFrameTimings *timings = gdk_frame_history_get_timings (history, i);
1071
1072       if (gdk_frame_timings_get_cookie (timings) == serial)
1073         return timings;
1074     }
1075
1076   return NULL;
1077 }
1078
1079 GdkFilterReturn
1080 _gdk_wm_protocols_filter (GdkXEvent *xev,
1081                           GdkEvent  *event,
1082                           gpointer   data)
1083 {
1084   XEvent *xevent = (XEvent *)xev;
1085   GdkWindow *win = event->any.window;
1086   GdkDisplay *display;
1087   Atom atom;
1088
1089   if (!GDK_IS_X11_WINDOW (win))
1090     return GDK_FILTER_CONTINUE;
1091
1092   if (xevent->type != ClientMessage)
1093     return GDK_FILTER_CONTINUE;
1094
1095   display = GDK_WINDOW_DISPLAY (win);
1096
1097   /* This isn't actually WM_PROTOCOLS because that wouldn't leave enough space
1098    * in the message for everything that gets stuffed in */
1099   if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_FRAME_DRAWN"))
1100     {
1101       GdkWindowImplX11 *window_impl;
1102       window_impl = GDK_WINDOW_IMPL_X11 (event->any.window->impl);
1103       if (window_impl->toplevel)
1104         {
1105           guint32 d0 = xevent->xclient.data.l[0];
1106           guint32 d1 = xevent->xclient.data.l[1];
1107           guint32 d2 = xevent->xclient.data.l[2];
1108           guint32 d3 = xevent->xclient.data.l[3];
1109
1110           guint64 serial = ((guint64)d0 << 32) | d1;
1111
1112           GdkFrameClock *clock = gdk_window_get_frame_clock (event->any.window);
1113           GdkFrameTimings *timings = find_frame_timings (clock, serial);
1114
1115           if (timings)
1116             gdk_frame_timings_set_drawn_time (timings, ((guint64)d2 << 32) | d3);
1117
1118           if (window_impl->toplevel->frame_pending)
1119             {
1120               window_impl->toplevel->frame_pending = FALSE;
1121               gdk_frame_clock_thaw (clock);
1122             }
1123         }
1124
1125       return GDK_FILTER_REMOVE;
1126     }
1127
1128   if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_FRAME_TIMINGS"))
1129     {
1130       GdkWindowImplX11 *window_impl;
1131       window_impl = GDK_WINDOW_IMPL_X11 (event->any.window->impl);
1132       if (window_impl->toplevel)
1133         {
1134           guint32 d0 = xevent->xclient.data.l[0];
1135           guint32 d1 = xevent->xclient.data.l[1];
1136           guint32 d2 = xevent->xclient.data.l[2];
1137           guint32 d3 = xevent->xclient.data.l[3];
1138
1139           guint64 serial = ((guint64)d0 << 32) | d1;
1140
1141           GdkFrameClock *clock = gdk_window_get_frame_clock (event->any.window);
1142           GdkFrameTimings *timings = find_frame_timings (clock, serial);
1143
1144           if (timings)
1145             {
1146               gint64 drawn_time = gdk_frame_timings_get_drawn_time (timings);
1147               gint32 presentation_time_offset = (gint32)d2;
1148               gint32 refresh_interval = d3;
1149
1150               if (drawn_time && presentation_time_offset)
1151                 gdk_frame_timings_set_presentation_time (timings,
1152                                                          drawn_time + presentation_time_offset);
1153
1154               if (refresh_interval)
1155                 gdk_frame_timings_set_refresh_interval (timings, refresh_interval);
1156
1157               gdk_frame_timings_set_complete (timings, TRUE);
1158 #ifdef G_ENABLE_DEBUG
1159               if ((_gdk_debug_flags & GDK_DEBUG_FRAMES) != 0)
1160                 _gdk_frame_history_debug_print (gdk_frame_clock_get_history (clock),
1161                                                 timings);
1162 #endif /* G_ENABLE_DEBUG */
1163             }
1164         }
1165     }
1166
1167   if (xevent->xclient.message_type != gdk_x11_get_xatom_by_name_for_display (display, "WM_PROTOCOLS"))
1168     return GDK_FILTER_CONTINUE;
1169
1170   atom = (Atom) xevent->xclient.data.l[0];
1171
1172   if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW"))
1173     {
1174   /* The delete window request specifies a window
1175    *  to delete. We don't actually destroy the
1176    *  window because "it is only a request". (The
1177    *  window might contain vital data that the
1178    *  program does not want destroyed). Instead
1179    *  the event is passed along to the program,
1180    *  which should then destroy the window.
1181    */
1182       GDK_NOTE (EVENTS,
1183                 g_message ("delete window:\t\twindow: %ld",
1184                            xevent->xclient.window));
1185
1186       event->any.type = GDK_DELETE;
1187
1188       gdk_x11_window_set_user_time (win, xevent->xclient.data.l[1]);
1189
1190       return GDK_FILTER_TRANSLATE;
1191     }
1192   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_TAKE_FOCUS"))
1193     {
1194       GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
1195
1196       /* There is no way of knowing reliably whether we are viewable;
1197        * so trap errors asynchronously around the XSetInputFocus call
1198        */
1199       if (toplevel && win->accept_focus)
1200         {
1201           gdk_x11_display_error_trap_push (display);
1202           XSetInputFocus (GDK_DISPLAY_XDISPLAY (display),
1203                           toplevel->focus_window,
1204                           RevertToParent,
1205                           xevent->xclient.data.l[1]);
1206           gdk_x11_display_error_trap_pop_ignored (display);
1207        }
1208
1209       return GDK_FILTER_REMOVE;
1210     }
1211   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING") &&
1212            !_gdk_x11_display_is_root_window (display,
1213                                              xevent->xclient.window))
1214     {
1215       XClientMessageEvent xclient = xevent->xclient;
1216
1217       xclient.window = GDK_WINDOW_XROOTWIN (win);
1218       XSendEvent (GDK_WINDOW_XDISPLAY (win),
1219                   xclient.window,
1220                   False,
1221                   SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xclient);
1222
1223       return GDK_FILTER_REMOVE;
1224     }
1225   else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_SYNC_REQUEST") &&
1226            GDK_X11_DISPLAY (display)->use_sync)
1227     {
1228       GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (event->any.window);
1229       if (toplevel)
1230         {
1231 #ifdef HAVE_XSYNC
1232           toplevel->pending_counter_value = xevent->xclient.data.l[2] + ((gint64)xevent->xclient.data.l[3] << 32);
1233 #endif
1234         }
1235       return GDK_FILTER_REMOVE;
1236     }
1237
1238   return GDK_FILTER_CONTINUE;
1239 }
1240
1241 static void
1242 gdk_event_init (GdkDisplay *display)
1243 {
1244   GdkX11Display *display_x11;
1245   GdkDeviceManager *device_manager;
1246
1247   display_x11 = GDK_X11_DISPLAY (display);
1248   display_x11->event_source = gdk_x11_event_source_new (display);
1249
1250   gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
1251                                        GDK_EVENT_TRANSLATOR (display));
1252
1253   device_manager = gdk_display_get_device_manager (display);
1254   gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
1255                                         GDK_EVENT_TRANSLATOR (device_manager));
1256 }
1257
1258 static void
1259 gdk_x11_display_init_input (GdkDisplay *display)
1260 {
1261   GdkX11Display *display_x11;
1262   GdkDeviceManager *device_manager;
1263   GdkDevice *device;
1264   GList *list, *l;
1265
1266   display_x11 = GDK_X11_DISPLAY (display);
1267   device_manager = gdk_display_get_device_manager (display);
1268
1269   /* For backwards compatibility, just add
1270    * floating devices that are not keyboards.
1271    */
1272   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING);
1273
1274   for (l = list; l; l = l->next)
1275     {
1276       device = l->data;
1277
1278       if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
1279         continue;
1280
1281       display_x11->input_devices = g_list_prepend (display_x11->input_devices,
1282                                                    g_object_ref (l->data));
1283     }
1284
1285   g_list_free (list);
1286
1287   /* Now set "core" pointer to the first
1288    * master device that is a pointer.
1289    */
1290   list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
1291
1292   for (l = list; l; l = l->next)
1293     {
1294       device = l->data;
1295
1296       if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE)
1297         continue;
1298
1299       display->core_pointer = device;
1300       break;
1301     }
1302
1303   /* Add the core pointer to the devices list */
1304   display_x11->input_devices = g_list_prepend (display_x11->input_devices,
1305                                                g_object_ref (display->core_pointer));
1306
1307   g_list_free (list);
1308 }
1309
1310 static void
1311 set_sm_client_id (GdkDisplay  *display,
1312                   const gchar *sm_client_id)
1313 {
1314   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1315
1316   if (gdk_display_is_closed (display))
1317     return;
1318
1319   if (sm_client_id && strcmp (sm_client_id, ""))
1320     XChangeProperty (display_x11->xdisplay, display_x11->leader_window,
1321                      gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"),
1322                      XA_STRING, 8, PropModeReplace, (guchar *)sm_client_id,
1323                      strlen (sm_client_id));
1324   else
1325     XDeleteProperty (display_x11->xdisplay, display_x11->leader_window,
1326                      gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"));
1327 }
1328
1329 GdkDisplay *
1330 _gdk_x11_display_open (const gchar *display_name)
1331 {
1332   Display *xdisplay;
1333   GdkDisplay *display;
1334   GdkX11Display *display_x11;
1335   GdkWindowAttr attr;
1336   gint argc;
1337   gchar *argv[1];
1338
1339   XClassHint *class_hint;
1340   gulong pid;
1341   gint i;
1342   gint ignore;
1343   gint maj, min;
1344
1345   xdisplay = XOpenDisplay (display_name);
1346   if (!xdisplay)
1347     return NULL;
1348
1349   display = g_object_new (GDK_TYPE_X11_DISPLAY, NULL);
1350   display_x11 = GDK_X11_DISPLAY (display);
1351
1352   display_x11->xdisplay = xdisplay;
1353
1354   /* Set up handlers for Xlib internal connections */
1355   XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
1356
1357   _gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
1358
1359   /* RandR must be initialized before we initialize the screens */
1360   display_x11->have_randr12 = FALSE;
1361   display_x11->have_randr13 = FALSE;
1362 #ifdef HAVE_RANDR
1363   if (XRRQueryExtension (display_x11->xdisplay,
1364                          &display_x11->xrandr_event_base, &ignore))
1365   {
1366       int major, minor;
1367
1368       XRRQueryVersion (display_x11->xdisplay, &major, &minor);
1369
1370       if ((major == 1 && minor >= 2) || major > 1) {
1371           display_x11->have_randr12 = TRUE;
1372           if (minor >= 3 || major > 1)
1373               display_x11->have_randr13 = TRUE;
1374       }
1375
1376        gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents);
1377   }
1378 #endif
1379
1380   /* initialize the display's screens */
1381   display_x11->screens = g_new (GdkScreen *, ScreenCount (display_x11->xdisplay));
1382   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1383     display_x11->screens[i] = _gdk_x11_screen_new (display, i);
1384
1385   /* We need to initialize events after we have the screen
1386    * structures in places
1387    */
1388   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1389     _gdk_x11_screen_init_events (display_x11->screens[i]);
1390
1391   /*set the default screen */
1392   display_x11->default_screen = display_x11->screens[DefaultScreen (display_x11->xdisplay)];
1393
1394   display->device_manager = _gdk_x11_device_manager_new (display);
1395
1396   gdk_event_init (display);
1397
1398   attr.window_type = GDK_WINDOW_TOPLEVEL;
1399   attr.wclass = GDK_INPUT_OUTPUT;
1400   attr.x = 10;
1401   attr.y = 10;
1402   attr.width = 10;
1403   attr.height = 10;
1404   attr.event_mask = 0;
1405
1406   display_x11->leader_gdk_window = gdk_window_new (GDK_X11_SCREEN (display_x11->default_screen)->root_window,
1407                                                    &attr, GDK_WA_X | GDK_WA_Y);
1408   (_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
1409
1410   display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
1411
1412   display_x11->leader_window_title_set = FALSE;
1413
1414 #ifdef HAVE_XFIXES
1415   if (XFixesQueryExtension (display_x11->xdisplay,
1416                             &display_x11->xfixes_event_base,
1417                             &ignore))
1418     {
1419       display_x11->have_xfixes = TRUE;
1420
1421       gdk_x11_register_standard_event_type (display,
1422                                             display_x11->xfixes_event_base,
1423                                             XFixesNumberEvents);
1424     }
1425   else
1426 #endif
1427     display_x11->have_xfixes = FALSE;
1428
1429 #ifdef HAVE_XCOMPOSITE
1430   if (XCompositeQueryExtension (display_x11->xdisplay,
1431                                 &ignore, &ignore))
1432     {
1433       int major, minor;
1434
1435       XCompositeQueryVersion (display_x11->xdisplay, &major, &minor);
1436
1437       /* Prior to Composite version 0.4, composited windows clipped their
1438        * parents, so you had to use IncludeInferiors to draw to the parent
1439        * This isn't useful for our purposes, so require 0.4
1440        */
1441       display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4);
1442     }
1443   else
1444 #endif
1445     display_x11->have_xcomposite = FALSE;
1446
1447 #ifdef HAVE_XDAMAGE
1448   if (XDamageQueryExtension (display_x11->xdisplay,
1449                              &display_x11->xdamage_event_base,
1450                              &ignore))
1451     {
1452       display_x11->have_xdamage = TRUE;
1453
1454       gdk_x11_register_standard_event_type (display,
1455                                             display_x11->xdamage_event_base,
1456                                             XDamageNumberEvents);
1457     }
1458   else
1459 #endif
1460     display_x11->have_xdamage = FALSE;
1461
1462   display_x11->have_shapes = FALSE;
1463   display_x11->have_input_shapes = FALSE;
1464
1465   if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &display_x11->shape_event_base, &ignore))
1466     {
1467       display_x11->have_shapes = TRUE;
1468 #ifdef ShapeInput
1469       if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min))
1470         display_x11->have_input_shapes = (maj == 1 && min >= 1);
1471 #endif
1472     }
1473
1474   display_x11->trusted_client = TRUE;
1475   {
1476     Window root, child;
1477     int rootx, rooty, winx, winy;
1478     unsigned int xmask;
1479
1480     gdk_x11_display_error_trap_push (display);
1481     XQueryPointer (display_x11->xdisplay,
1482                    GDK_X11_SCREEN (display_x11->default_screen)->xroot_window,
1483                    &root, &child, &rootx, &rooty, &winx, &winy, &xmask);
1484     if (G_UNLIKELY (gdk_x11_display_error_trap_pop (display) == BadWindow))
1485       {
1486         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));
1487         display_x11->trusted_client = FALSE;
1488       }
1489   }
1490
1491   if (g_getenv ("GDK_SYNCHRONIZE"))
1492     XSynchronize (display_x11->xdisplay, True);
1493
1494   class_hint = XAllocClassHint();
1495   class_hint->res_name = (char *) g_get_prgname ();
1496   class_hint->res_class = (char *)gdk_get_program_class ();
1497
1498   /* XmbSetWMProperties sets the RESOURCE_NAME environment variable
1499    * from argv[0], so we just synthesize an argument array here.
1500    */
1501   argc = 1;
1502   argv[0] = (char *) g_get_prgname ();
1503
1504   XmbSetWMProperties (display_x11->xdisplay,
1505                       display_x11->leader_window,
1506                       NULL, NULL, argv, argc, NULL, NULL,
1507                       class_hint);
1508   XFree (class_hint);
1509
1510   if (gdk_sm_client_id)
1511     set_sm_client_id (display, gdk_sm_client_id);
1512
1513   pid = getpid ();
1514   XChangeProperty (display_x11->xdisplay,
1515                    display_x11->leader_window,
1516                    gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
1517                    XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
1518
1519   /* We don't yet know a valid time. */
1520   display_x11->user_time = 0;
1521
1522 #ifdef HAVE_XKB
1523   {
1524     gint xkb_major = XkbMajorVersion;
1525     gint xkb_minor = XkbMinorVersion;
1526     if (XkbLibraryVersion (&xkb_major, &xkb_minor))
1527       {
1528         xkb_major = XkbMajorVersion;
1529         xkb_minor = XkbMinorVersion;
1530
1531         if (XkbQueryExtension (display_x11->xdisplay,
1532                                NULL, &display_x11->xkb_event_type, NULL,
1533                                &xkb_major, &xkb_minor))
1534           {
1535             Bool detectable_autorepeat_supported;
1536
1537             display_x11->use_xkb = TRUE;
1538
1539             XkbSelectEvents (display_x11->xdisplay,
1540                              XkbUseCoreKbd,
1541                              XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
1542                              XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
1543
1544             /* keep this in sync with _gdk_x11_keymap_state_changed() */
1545             XkbSelectEventDetails (display_x11->xdisplay,
1546                                    XkbUseCoreKbd, XkbStateNotify,
1547                                    XkbAllStateComponentsMask,
1548                                    XkbModifierStateMask|XkbGroupStateMask);
1549
1550             XkbSetDetectableAutoRepeat (display_x11->xdisplay,
1551                                         True,
1552                                         &detectable_autorepeat_supported);
1553
1554             GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
1555                                        detectable_autorepeat_supported ?
1556                                        "supported" : "not supported"));
1557
1558             display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
1559           }
1560       }
1561   }
1562 #endif
1563
1564   display_x11->use_sync = FALSE;
1565 #ifdef HAVE_XSYNC
1566   {
1567     int major, minor;
1568     int error_base, event_base;
1569
1570     if (XSyncQueryExtension (display_x11->xdisplay,
1571                              &event_base, &error_base) &&
1572         XSyncInitialize (display_x11->xdisplay,
1573                          &major, &minor))
1574       display_x11->use_sync = TRUE;
1575   }
1576 #endif
1577
1578   gdk_x11_display_init_input (display);
1579
1580   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1581     _gdk_x11_screen_setup (display_x11->screens[i]);
1582
1583   g_signal_emit_by_name (display, "opened");
1584
1585   return display;
1586 }
1587
1588 /*
1589  * XLib internal connection handling
1590  */
1591 typedef struct _GdkInternalConnection GdkInternalConnection;
1592
1593 struct _GdkInternalConnection
1594 {
1595   gint           fd;
1596   GSource       *source;
1597   Display       *display;
1598 };
1599
1600 static gboolean
1601 process_internal_connection (GIOChannel  *gioc,
1602                              GIOCondition cond,
1603                              gpointer     data)
1604 {
1605   GdkInternalConnection *connection = (GdkInternalConnection *)data;
1606
1607   gdk_threads_enter ();
1608
1609   XProcessInternalConnection ((Display*)connection->display, connection->fd);
1610
1611   gdk_threads_leave ();
1612
1613   return TRUE;
1614 }
1615
1616 static gulong
1617 gdk_x11_display_get_next_serial (GdkDisplay *display)
1618 {
1619   return NextRequest (GDK_DISPLAY_XDISPLAY (display));
1620 }
1621
1622
1623 static GdkInternalConnection *
1624 gdk_add_connection_handler (Display *display,
1625                             guint    fd)
1626 {
1627   GIOChannel *io_channel;
1628   GdkInternalConnection *connection;
1629
1630   connection = g_new (GdkInternalConnection, 1);
1631
1632   connection->fd = fd;
1633   connection->display = display;
1634
1635   io_channel = g_io_channel_unix_new (fd);
1636
1637   connection->source = g_io_create_watch (io_channel, G_IO_IN);
1638   g_source_set_callback (connection->source,
1639                          (GSourceFunc)process_internal_connection, connection, NULL);
1640   g_source_attach (connection->source, NULL);
1641
1642   g_io_channel_unref (io_channel);
1643
1644   return connection;
1645 }
1646
1647 static void
1648 gdk_remove_connection_handler (GdkInternalConnection *connection)
1649 {
1650   g_source_destroy (connection->source);
1651   g_free (connection);
1652 }
1653
1654 static void
1655 gdk_internal_connection_watch (Display  *display,
1656                                XPointer  arg,
1657                                gint      fd,
1658                                gboolean  opening,
1659                                XPointer *watch_data)
1660 {
1661   if (opening)
1662     *watch_data = (XPointer)gdk_add_connection_handler (display, fd);
1663   else
1664     gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
1665 }
1666
1667 static const gchar *
1668 gdk_x11_display_get_name (GdkDisplay *display)
1669 {
1670   return (gchar *) DisplayString (GDK_X11_DISPLAY (display)->xdisplay);
1671 }
1672
1673 static gint
1674 gdk_x11_display_get_n_screens (GdkDisplay *display)
1675 {
1676   return ScreenCount (GDK_X11_DISPLAY (display)->xdisplay);
1677 }
1678
1679 static GdkScreen *
1680 gdk_x11_display_get_screen (GdkDisplay *display,
1681                             gint        screen_num)
1682 {
1683   g_return_val_if_fail (ScreenCount (GDK_X11_DISPLAY (display)->xdisplay) > screen_num, NULL);
1684
1685   return GDK_X11_DISPLAY (display)->screens[screen_num];
1686 }
1687
1688 static GdkScreen *
1689 gdk_x11_display_get_default_screen (GdkDisplay *display)
1690 {
1691   return GDK_X11_DISPLAY (display)->default_screen;
1692 }
1693
1694 gboolean
1695 _gdk_x11_display_is_root_window (GdkDisplay *display,
1696                                  Window      xroot_window)
1697 {
1698   GdkX11Display *display_x11;
1699   gint i;
1700
1701   display_x11 = GDK_X11_DISPLAY (display);
1702
1703   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1704     {
1705       if (GDK_SCREEN_XROOTWIN (display_x11->screens[i]) == xroot_window)
1706         return TRUE;
1707     }
1708   return FALSE;
1709 }
1710
1711 struct XPointerUngrabInfo {
1712   GdkDisplay *display;
1713   guint32 time;
1714 };
1715
1716 static void
1717 device_grab_update_callback (GdkDisplay *display,
1718                              gpointer    data,
1719                              gulong      serial)
1720 {
1721   GdkPointerWindowInfo *pointer_info;
1722   GdkDevice *device = data;
1723
1724   pointer_info = _gdk_display_get_pointer_info (display, device);
1725   _gdk_display_device_grab_update (display, device,
1726                                    pointer_info->last_slave, serial);
1727 }
1728
1729 #define XSERVER_TIME_IS_LATER(time1, time2)                        \
1730   ( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) ||  \
1731     (( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 ))     \
1732   )
1733
1734 void
1735 _gdk_x11_display_update_grab_info (GdkDisplay *display,
1736                                    GdkDevice  *device,
1737                                    gint        status)
1738 {
1739   if (status == GrabSuccess)
1740     _gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
1741 }
1742
1743 void
1744 _gdk_x11_display_update_grab_info_ungrab (GdkDisplay *display,
1745                                           GdkDevice  *device,
1746                                           guint32     time,
1747                                           gulong      serial)
1748 {
1749   GdkDeviceGrabInfo *grab;
1750
1751   XFlush (GDK_DISPLAY_XDISPLAY (display));
1752
1753   grab = _gdk_display_get_last_device_grab (display, device);
1754   if (grab &&
1755       (time == GDK_CURRENT_TIME ||
1756        grab->time == GDK_CURRENT_TIME ||
1757        !XSERVER_TIME_IS_LATER (grab->time, time)))
1758     {
1759       grab->serial_end = serial;
1760       _gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
1761     }
1762 }
1763
1764 static void
1765 gdk_x11_display_beep (GdkDisplay *display)
1766 {
1767 #ifdef HAVE_XKB
1768   XkbBell (GDK_DISPLAY_XDISPLAY (display), None, 0, None);
1769 #else
1770   XBell (GDK_DISPLAY_XDISPLAY (display), 0);
1771 #endif
1772 }
1773
1774 static void
1775 gdk_x11_display_sync (GdkDisplay *display)
1776 {
1777   XSync (GDK_DISPLAY_XDISPLAY (display), False);
1778 }
1779
1780 static void
1781 gdk_x11_display_flush (GdkDisplay *display)
1782 {
1783   if (!display->closed)
1784     XFlush (GDK_DISPLAY_XDISPLAY (display));
1785 }
1786
1787 static gboolean
1788 gdk_x11_display_has_pending (GdkDisplay *display)
1789 {
1790   return XPending (GDK_DISPLAY_XDISPLAY (display));
1791 }
1792
1793 static GdkWindow *
1794 gdk_x11_display_get_default_group (GdkDisplay *display)
1795 {
1796   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
1797
1798   return GDK_X11_DISPLAY (display)->leader_gdk_window;
1799 }
1800
1801 /**
1802  * gdk_x11_display_grab:
1803  * @display: (type GdkX11Display): a #GdkDisplay
1804  *
1805  * Call XGrabServer() on @display.
1806  * To ungrab the display again, use gdk_x11_display_ungrab().
1807  *
1808  * gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
1809  *
1810  * Since: 2.2
1811  **/
1812 void
1813 gdk_x11_display_grab (GdkDisplay *display)
1814 {
1815   GdkX11Display *display_x11;
1816
1817   g_return_if_fail (GDK_IS_DISPLAY (display));
1818
1819   display_x11 = GDK_X11_DISPLAY (display);
1820
1821   if (display_x11->grab_count == 0)
1822     XGrabServer (display_x11->xdisplay);
1823   display_x11->grab_count++;
1824 }
1825
1826 /**
1827  * gdk_x11_display_ungrab:
1828  * @display: (type GdkX11Display): a #GdkDisplay
1829  *
1830  * Ungrab @display after it has been grabbed with
1831  * gdk_x11_display_grab().
1832  *
1833  * Since: 2.2
1834  **/
1835 void
1836 gdk_x11_display_ungrab (GdkDisplay *display)
1837 {
1838   GdkX11Display *display_x11;
1839
1840   g_return_if_fail (GDK_IS_DISPLAY (display));
1841
1842   display_x11 = GDK_X11_DISPLAY (display);;
1843   g_return_if_fail (display_x11->grab_count > 0);
1844
1845   display_x11->grab_count--;
1846   if (display_x11->grab_count == 0)
1847     {
1848       XUngrabServer (display_x11->xdisplay);
1849       XFlush (display_x11->xdisplay);
1850     }
1851 }
1852
1853 static void
1854 gdk_x11_display_dispose (GObject *object)
1855 {
1856   GdkDisplay *display = GDK_DISPLAY (object);
1857   GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
1858   gint           i;
1859
1860   _gdk_x11_display_manager_remove_display (gdk_display_manager_get (), display);
1861
1862   g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL);
1863
1864   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1865     _gdk_screen_close (display_x11->screens[i]);
1866
1867   if (display_x11->event_source)
1868     {
1869       g_source_destroy (display_x11->event_source);
1870       g_source_unref (display_x11->event_source);
1871       display_x11->event_source = NULL;
1872     }
1873
1874   G_OBJECT_CLASS (gdk_x11_display_parent_class)->dispose (object);
1875 }
1876
1877 static void
1878 gdk_x11_display_finalize (GObject *object)
1879 {
1880   GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
1881   gint           i;
1882
1883   /* Keymap */
1884   if (display_x11->keymap)
1885     g_object_unref (display_x11->keymap);
1886
1887   /* Free motif Dnd */
1888   if (display_x11->motif_target_lists)
1889     {
1890       for (i = 0; i < display_x11->motif_n_target_lists; i++)
1891         g_list_free (display_x11->motif_target_lists[i]);
1892       g_free (display_x11->motif_target_lists);
1893     }
1894
1895   _gdk_x11_cursor_display_finalize (GDK_DISPLAY (display_x11));
1896
1897   /* Empty the event queue */
1898   _gdk_x11_display_free_translate_queue (GDK_DISPLAY (display_x11));
1899
1900   /* Atom Hashtable */
1901   g_hash_table_destroy (display_x11->atom_from_virtual);
1902   g_hash_table_destroy (display_x11->atom_to_virtual);
1903
1904   /* Leader Window */
1905   XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
1906
1907   /* List of event window extraction functions */
1908   g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
1909   g_slist_free (display_x11->event_types);
1910
1911   /* input GdkDevice list */
1912   g_list_free_full (display_x11->input_devices, g_object_unref);
1913
1914   /* input GdkWindow list */
1915   g_list_free_full (display_x11->input_windows, g_free);
1916
1917   /* Free all GdkScreens */
1918   for (i = 0; i < ScreenCount (display_x11->xdisplay); i++)
1919     g_object_unref (display_x11->screens[i]);
1920   g_free (display_x11->screens);
1921
1922   g_free (display_x11->startup_notification_id);
1923
1924   /* X ID hashtable */
1925   g_hash_table_destroy (display_x11->xid_ht);
1926
1927   XCloseDisplay (display_x11->xdisplay);
1928
1929   /* error traps */
1930   while (display_x11->error_traps != NULL)
1931     {
1932       GdkErrorTrap *trap = display_x11->error_traps->data;
1933
1934       display_x11->error_traps =
1935         g_slist_delete_link (display_x11->error_traps,
1936                              display_x11->error_traps);
1937
1938       if (trap->end_sequence == 0)
1939         g_warning ("Display finalized with an unpopped error trap");
1940
1941       g_slice_free (GdkErrorTrap, trap);
1942     }
1943
1944   G_OBJECT_CLASS (gdk_x11_display_parent_class)->finalize (object);
1945 }
1946
1947 /**
1948  * gdk_x11_lookup_xdisplay:
1949  * @xdisplay: a pointer to an X Display
1950  *
1951  * Find the #GdkDisplay corresponding to @display, if any exists.
1952  *
1953  * Return value: (transfer none): the #GdkDisplay, if found, otherwise %NULL.
1954  *
1955  * Since: 2.2
1956  **/
1957 GdkDisplay *
1958 gdk_x11_lookup_xdisplay (Display *xdisplay)
1959 {
1960   GSList *list, *l;
1961   GdkDisplay *display;
1962
1963   display = NULL;
1964
1965   list = gdk_display_manager_list_displays (gdk_display_manager_get ());
1966
1967   for (l = list; l; l = l->next)
1968     {
1969       if (GDK_DISPLAY_XDISPLAY (l->data) == xdisplay)
1970         {
1971           display = l->data;
1972           break;
1973         }
1974     }
1975
1976   g_slist_free (list);
1977
1978   return display;
1979 }
1980
1981 /**
1982  * _gdk_x11_display_screen_for_xrootwin:
1983  * @display: a #GdkDisplay
1984  * @xrootwin: window ID for one of of the screen's of the display.
1985  *
1986  * Given the root window ID of one of the screen's of a #GdkDisplay,
1987  * finds the screen.
1988  *
1989  * Return value: (transfer none): the #GdkScreen corresponding to
1990  *     @xrootwin, or %NULL.
1991  **/
1992 GdkScreen *
1993 _gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
1994                                       Window      xrootwin)
1995 {
1996   gint i;
1997
1998   for (i = 0; i < ScreenCount (GDK_X11_DISPLAY (display)->xdisplay); i++)
1999     {
2000       GdkScreen *screen = gdk_display_get_screen (display, i);
2001       if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
2002         return screen;
2003     }
2004
2005   return NULL;
2006 }
2007
2008 /**
2009  * gdk_x11_display_get_xdisplay:
2010  * @display: (type GdkX11Display): a #GdkDisplay
2011  *
2012  * Returns the X display of a #GdkDisplay.
2013  *
2014  * Returns: (transfer none): an X display
2015  *
2016  * Since: 2.2
2017  */
2018 Display *
2019 gdk_x11_display_get_xdisplay (GdkDisplay *display)
2020 {
2021   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
2022   return GDK_X11_DISPLAY (display)->xdisplay;
2023 }
2024
2025 void
2026 _gdk_x11_display_make_default (GdkDisplay *display)
2027 {
2028   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2029   const gchar *startup_id;
2030
2031   g_free (display_x11->startup_notification_id);
2032   display_x11->startup_notification_id = NULL;
2033
2034   startup_id = g_getenv ("DESKTOP_STARTUP_ID");
2035   if (startup_id && *startup_id != '\0')
2036     {
2037       if (!g_utf8_validate (startup_id, -1, NULL))
2038         g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
2039       else
2040         gdk_x11_display_set_startup_notification_id (display, startup_id);
2041
2042       /* Clear the environment variable so it won't be inherited by
2043        * child processes and confuse things.
2044        */
2045       g_unsetenv ("DESKTOP_STARTUP_ID");
2046     }
2047 }
2048
2049 static void
2050 broadcast_xmessage (GdkDisplay *display,
2051                     const char *message_type,
2052                     const char *message_type_begin,
2053                     const char *message)
2054 {
2055   Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
2056   GdkScreen *screen = gdk_display_get_default_screen (display);
2057   GdkWindow *root_window = gdk_screen_get_root_window (screen);
2058   Window xroot_window = GDK_WINDOW_XID (root_window);
2059
2060   Atom type_atom;
2061   Atom type_atom_begin;
2062   Window xwindow;
2063
2064   if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
2065     return;
2066
2067   {
2068     XSetWindowAttributes attrs;
2069
2070     attrs.override_redirect = True;
2071     attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
2072
2073     xwindow =
2074       XCreateWindow (xdisplay,
2075                      xroot_window,
2076                      -100, -100, 1, 1,
2077                      0,
2078                      CopyFromParent,
2079                      CopyFromParent,
2080                      (Visual *)CopyFromParent,
2081                      CWOverrideRedirect | CWEventMask,
2082                      &attrs);
2083   }
2084
2085   type_atom = gdk_x11_get_xatom_by_name_for_display (display,
2086                                                      message_type);
2087   type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
2088                                                            message_type_begin);
2089
2090   {
2091     XClientMessageEvent xclient;
2092     const char *src;
2093     const char *src_end;
2094     char *dest;
2095     char *dest_end;
2096
2097                 memset(&xclient, 0, sizeof (xclient));
2098     xclient.type = ClientMessage;
2099     xclient.message_type = type_atom_begin;
2100     xclient.display =xdisplay;
2101     xclient.window = xwindow;
2102     xclient.format = 8;
2103
2104     src = message;
2105     src_end = message + strlen (message) + 1; /* +1 to include nul byte */
2106
2107     while (src != src_end)
2108       {
2109         dest = &xclient.data.b[0];
2110         dest_end = dest + 20;
2111
2112         while (dest != dest_end &&
2113                src != src_end)
2114           {
2115             *dest = *src;
2116             ++dest;
2117             ++src;
2118           }
2119
2120         while (dest != dest_end)
2121           {
2122             *dest = 0;
2123             ++dest;
2124           }
2125
2126         XSendEvent (xdisplay,
2127                     xroot_window,
2128                     False,
2129                     PropertyChangeMask,
2130                     (XEvent *)&xclient);
2131
2132         xclient.message_type = type_atom;
2133       }
2134   }
2135
2136   XDestroyWindow (xdisplay, xwindow);
2137   XFlush (xdisplay);
2138 }
2139
2140 /**
2141  * gdk_x11_display_broadcast_startup_message:
2142  * @display: (type GdkX11Display): a #GdkDisplay
2143  * @message_type: startup notification message type ("new", "change",
2144  * or "remove")
2145  * @...: a list of key/value pairs (as strings), terminated by a
2146  * %NULL key. (A %NULL value for a key will cause that key to be
2147  * skipped in the output.)
2148  *
2149  * Sends a startup notification message of type @message_type to
2150  * @display.
2151  *
2152  * This is a convenience function for use by code that implements the
2153  * freedesktop startup notification specification. Applications should
2154  * not normally need to call it directly. See the <ulink
2155  * url="http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt">Startup
2156  * Notification Protocol specification</ulink> for
2157  * definitions of the message types and keys that can be used.
2158  *
2159  * Since: 2.12
2160  **/
2161 void
2162 gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
2163                                            const char *message_type,
2164                                            ...)
2165 {
2166   GString *message;
2167   va_list ap;
2168   const char *key, *value, *p;
2169
2170   message = g_string_new (message_type);
2171   g_string_append_c (message, ':');
2172
2173   va_start (ap, message_type);
2174   while ((key = va_arg (ap, const char *)))
2175     {
2176       value = va_arg (ap, const char *);
2177       if (!value)
2178         continue;
2179
2180       g_string_append_printf (message, " %s=\"", key);
2181       for (p = value; *p; p++)
2182         {
2183           switch (*p)
2184             {
2185             case ' ':
2186             case '"':
2187             case '\\':
2188               g_string_append_c (message, '\\');
2189               break;
2190             }
2191
2192           g_string_append_c (message, *p);
2193         }
2194       g_string_append_c (message, '\"');
2195     }
2196   va_end (ap);
2197
2198   broadcast_xmessage (display,
2199                       "_NET_STARTUP_INFO",
2200                       "_NET_STARTUP_INFO_BEGIN",
2201                       message->str);
2202
2203   g_string_free (message, TRUE);
2204 }
2205
2206 static void
2207 gdk_x11_display_notify_startup_complete (GdkDisplay  *display,
2208                                          const gchar *startup_id)
2209 {
2210   if (startup_id == NULL)
2211     {
2212       startup_id = GDK_X11_DISPLAY (display)->startup_notification_id;
2213       if (startup_id == NULL)
2214         return;
2215     }
2216
2217   gdk_x11_display_broadcast_startup_message (display, "remove",
2218                                              "ID", startup_id,
2219                                              NULL);
2220 }
2221
2222 static gboolean
2223 gdk_x11_display_supports_selection_notification (GdkDisplay *display)
2224 {
2225   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2226
2227   return display_x11->have_xfixes;
2228 }
2229
2230 static gboolean
2231 gdk_x11_display_request_selection_notification (GdkDisplay *display,
2232                                                 GdkAtom     selection)
2233
2234 {
2235 #ifdef HAVE_XFIXES
2236   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2237   Atom atom;
2238
2239   if (display_x11->have_xfixes)
2240     {
2241       atom = gdk_x11_atom_to_xatom_for_display (display,
2242                                                 selection);
2243       XFixesSelectSelectionInput (display_x11->xdisplay,
2244                                   display_x11->leader_window,
2245                                   atom,
2246                                   XFixesSetSelectionOwnerNotifyMask |
2247                                   XFixesSelectionWindowDestroyNotifyMask |
2248                                   XFixesSelectionClientCloseNotifyMask);
2249       return TRUE;
2250     }
2251   else
2252 #endif
2253     return FALSE;
2254 }
2255
2256 static gboolean
2257 gdk_x11_display_supports_clipboard_persistence (GdkDisplay *display)
2258 {
2259   Atom clipboard_manager;
2260
2261   /* It might make sense to cache this */
2262   clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
2263   return XGetSelectionOwner (GDK_X11_DISPLAY (display)->xdisplay, clipboard_manager) != None;
2264 }
2265
2266 static void
2267 gdk_x11_display_store_clipboard (GdkDisplay    *display,
2268                                  GdkWindow     *clipboard_window,
2269                                  guint32        time_,
2270                                  const GdkAtom *targets,
2271                                  gint           n_targets)
2272 {
2273   GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
2274   Atom clipboard_manager, save_targets;
2275
2276   g_return_if_fail (GDK_WINDOW_IS_X11 (clipboard_window));
2277
2278   clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
2279   save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
2280
2281   gdk_x11_display_error_trap_push (display);
2282
2283   if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
2284     {
2285       Atom property_name = None;
2286       Atom *xatoms;
2287       int i;
2288
2289       if (n_targets > 0)
2290         {
2291           property_name = gdk_x11_get_xatom_by_name_for_display (display, "GDK_SELECTION");
2292
2293           xatoms = g_new (Atom, n_targets);
2294           for (i = 0; i < n_targets; i++)
2295             xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
2296
2297           XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
2298                            property_name, XA_ATOM,
2299                            32, PropModeReplace, (guchar *)xatoms, n_targets);
2300           g_free (xatoms);
2301
2302         }
2303
2304       XConvertSelection (display_x11->xdisplay,
2305                          clipboard_manager, save_targets, property_name,
2306                          GDK_WINDOW_XID (clipboard_window), time_);
2307
2308     }
2309   gdk_x11_display_error_trap_pop_ignored (display);
2310
2311 }
2312
2313 /**
2314  * gdk_x11_display_get_user_time:
2315  * @display: (type GdkX11Display): a #GdkDisplay
2316  *
2317  * Returns the timestamp of the last user interaction on
2318  * @display. The timestamp is taken from events caused
2319  * by user interaction such as key presses or pointer
2320  * movements. See gdk_x11_window_set_user_time().
2321  *
2322  * Returns: the timestamp of the last user interaction
2323  *
2324  * Since: 2.8
2325  */
2326 guint32
2327 gdk_x11_display_get_user_time (GdkDisplay *display)
2328 {
2329   return GDK_X11_DISPLAY (display)->user_time;
2330 }
2331
2332 static gboolean
2333 gdk_x11_display_supports_shapes (GdkDisplay *display)
2334 {
2335   return GDK_X11_DISPLAY (display)->have_shapes;
2336 }
2337
2338 static gboolean
2339 gdk_x11_display_supports_input_shapes (GdkDisplay *display)
2340 {
2341   return GDK_X11_DISPLAY (display)->have_input_shapes;
2342 }
2343
2344
2345 /**
2346  * gdk_x11_display_get_startup_notification_id:
2347  * @display: (type GdkX11Display): a #GdkDisplay
2348  *
2349  * Gets the startup notification ID for a display.
2350  *
2351  * Returns: the startup notification ID for @display
2352  *
2353  * Since: 2.12
2354  */
2355 const gchar *
2356 gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
2357 {
2358   return GDK_X11_DISPLAY (display)->startup_notification_id;
2359 }
2360
2361 /**
2362  * gdk_x11_display_set_startup_notification_id:
2363  * @display: (type GdkX11Display): a #GdkDisplay
2364  * @startup_id: the startup notification ID (must be valid utf8)
2365  *
2366  * Sets the startup notification ID for a display.
2367  *
2368  * This is usually taken from the value of the DESKTOP_STARTUP_ID
2369  * environment variable, but in some cases (such as the application not
2370  * being launched using exec()) it can come from other sources.
2371  *
2372  * If the ID contains the string "_TIME" then the portion following that
2373  * string is taken to be the X11 timestamp of the event that triggered
2374  * the application to be launched and the GDK current event time is set
2375  * accordingly.
2376  *
2377  * The startup ID is also what is used to signal that the startup is
2378  * complete (for example, when opening a window or when calling
2379  * gdk_notify_startup_complete()).
2380  *
2381  * Since: 3.0
2382  **/
2383 void
2384 gdk_x11_display_set_startup_notification_id (GdkDisplay  *display,
2385                                              const gchar *startup_id)
2386 {
2387   GdkX11Display *display_x11;
2388   gchar *time_str;
2389
2390   display_x11 = GDK_X11_DISPLAY (display);
2391
2392   g_free (display_x11->startup_notification_id);
2393   display_x11->startup_notification_id = g_strdup (startup_id);
2394
2395   /* Find the launch time from the startup_id, if it's there.  Newer spec
2396    * states that the startup_id is of the form <unique>_TIME<timestamp>
2397    */
2398   time_str = g_strrstr (startup_id, "_TIME");
2399   if (time_str != NULL)
2400     {
2401       gulong retval;
2402       gchar *end;
2403       errno = 0;
2404
2405       /* Skip past the "_TIME" part */
2406       time_str += 5;
2407
2408       retval = strtoul (time_str, &end, 0);
2409       if (end != time_str && errno == 0)
2410         display_x11->user_time = retval;
2411     }
2412
2413   /* Set the startup id on the leader window so it
2414    * applies to all windows we create on this display
2415    */
2416   XChangeProperty (display_x11->xdisplay,
2417                    display_x11->leader_window,
2418                    gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
2419                    gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
2420                    PropModeReplace,
2421                    (guchar *)startup_id, strlen (startup_id));
2422 }
2423
2424 static gboolean
2425 gdk_x11_display_supports_composite (GdkDisplay *display)
2426 {
2427   GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
2428
2429   return x11_display->have_xcomposite &&
2430          x11_display->have_xdamage &&
2431          x11_display->have_xfixes;
2432 }
2433
2434 static GList *
2435 gdk_x11_display_list_devices (GdkDisplay *display)
2436 {
2437   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
2438
2439   return GDK_X11_DISPLAY (display)->input_devices;
2440 }
2441
2442 /**
2443  * gdk_x11_register_standard_event_type:
2444  * @display: a #GdkDisplay
2445  * @event_base: first event type code to register
2446  * @n_events: number of event type codes to register
2447  *
2448  * Registers interest in receiving extension events with type codes
2449  * between @event_base and <literal>event_base + n_events - 1</literal>.
2450  * The registered events must have the window field in the same place
2451  * as core X events (this is not the case for e.g. XKB extension events).
2452  *
2453  * If an event type is registered, events of this type will go through
2454  * global and window-specific filters (see gdk_window_add_filter()).
2455  * Unregistered events will only go through global filters.
2456  * GDK may register the events of some X extensions on its own.
2457  *
2458  * This function should only be needed in unusual circumstances, e.g.
2459  * when filtering XInput extension events on the root window.
2460  *
2461  * Since: 2.4
2462  **/
2463 void
2464 gdk_x11_register_standard_event_type (GdkDisplay *display,
2465                                       gint        event_base,
2466                                       gint        n_events)
2467 {
2468   GdkEventTypeX11 *event_type;
2469   GdkX11Display *display_x11;
2470
2471   display_x11 = GDK_X11_DISPLAY (display);
2472   event_type = g_new (GdkEventTypeX11, 1);
2473
2474   event_type->base = event_base;
2475   event_type->n_events = n_events;
2476
2477   display_x11->event_types = g_slist_prepend (display_x11->event_types, event_type);
2478 }
2479
2480 /* compare X sequence numbers handling wraparound */
2481 #define SEQUENCE_COMPARE(a,op,b) (((long) (a) - (long) (b)) op 0)
2482
2483 /* delivers an error event from the error handler in gdkmain-x11.c */
2484 void
2485 _gdk_x11_display_error_event (GdkDisplay  *display,
2486                               XErrorEvent *error)
2487 {
2488   GdkX11Display *display_x11;
2489   GSList *tmp_list;
2490   gboolean ignore;
2491
2492   display_x11 = GDK_X11_DISPLAY (display);
2493
2494   ignore = FALSE;
2495   for (tmp_list = display_x11->error_traps;
2496        tmp_list != NULL;
2497        tmp_list = tmp_list->next)
2498     {
2499       GdkErrorTrap *trap;
2500
2501       trap = tmp_list->data;
2502
2503       if (SEQUENCE_COMPARE (trap->start_sequence, <=, error->serial) &&
2504           (trap->end_sequence == 0 ||
2505            SEQUENCE_COMPARE (trap->end_sequence, >, error->serial)))
2506         {
2507           ignore = TRUE;
2508           trap->error_code = error->error_code;
2509           break; /* only innermost trap gets the error code */
2510         }
2511     }
2512
2513   if (!ignore)
2514     {
2515       gchar buf[64];
2516       gchar *msg;
2517
2518       XGetErrorText (display_x11->xdisplay, error->error_code, buf, 63);
2519
2520       msg =
2521         g_strdup_printf ("The program '%s' received an X Window System error.\n"
2522                          "This probably reflects a bug in the program.\n"
2523                          "The error was '%s'.\n"
2524                          "  (Details: serial %ld error_code %d request_code %d minor_code %d)\n"
2525                          "  (Note to programmers: normally, X errors are reported asynchronously;\n"
2526                          "   that is, you will receive the error a while after causing it.\n"
2527                          "   To debug your program, run it with the GDK_SYNCHRONIZE environment\n"
2528                          "   variable to change this behavior. You can then get a meaningful\n"
2529                          "   backtrace from your debugger if you break on the gdk_x_error() function.)",
2530                          g_get_prgname (),
2531                          buf,
2532                          error->serial,
2533                          error->error_code,
2534                          error->request_code,
2535                          error->minor_code);
2536
2537 #ifdef G_ENABLE_DEBUG
2538       g_error ("%s", msg);
2539 #else /* !G_ENABLE_DEBUG */
2540       g_warning ("%s\n", msg);
2541
2542       _exit (1);
2543 #endif /* G_ENABLE_DEBUG */
2544     }
2545 }
2546
2547 static void
2548 delete_outdated_error_traps (GdkX11Display *display_x11)
2549 {
2550   GSList *tmp_list;
2551   gulong processed_sequence;
2552
2553   processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
2554
2555   tmp_list = display_x11->error_traps;
2556   while (tmp_list != NULL)
2557     {
2558       GdkErrorTrap *trap = tmp_list->data;
2559
2560       if (trap->end_sequence != 0 &&
2561           SEQUENCE_COMPARE (trap->end_sequence, <=, processed_sequence))
2562         {
2563           GSList *free_me = tmp_list;
2564
2565           tmp_list = tmp_list->next;
2566           display_x11->error_traps =
2567             g_slist_delete_link (display_x11->error_traps, free_me);
2568           g_slice_free (GdkErrorTrap, trap);
2569         }
2570       else
2571         {
2572           tmp_list = tmp_list->next;
2573         }
2574     }
2575 }
2576
2577 /**
2578  * gdk_x11_display_error_trap_push:
2579  * @display: (type GdkX11Display): a #GdkDisplay
2580  *
2581  * Begins a range of X requests on @display for which X error events
2582  * will be ignored. Unignored errors (when no trap is pushed) will abort
2583  * the application. Use gdk_x11_display_error_trap_pop() or
2584  * gdk_x11_display_error_trap_pop_ignored()to lift a trap pushed
2585  * with this function.
2586  *
2587  * See also gdk_error_trap_push() to push a trap on all displays.
2588  *
2589  * Since: 3.0
2590  */
2591 void
2592 gdk_x11_display_error_trap_push (GdkDisplay *display)
2593 {
2594   GdkX11Display *display_x11;
2595   GdkErrorTrap *trap;
2596
2597   display_x11 = GDK_X11_DISPLAY (display);
2598
2599   delete_outdated_error_traps (display_x11);
2600
2601   /* set up the Xlib callback to tell us about errors */
2602   _gdk_x11_error_handler_push ();
2603
2604   trap = g_slice_new0 (GdkErrorTrap);
2605
2606   trap->start_sequence = XNextRequest (display_x11->xdisplay);
2607   trap->error_code = Success;
2608
2609   display_x11->error_traps =
2610     g_slist_prepend (display_x11->error_traps, trap);
2611 }
2612
2613 static gint
2614 gdk_x11_display_error_trap_pop_internal (GdkDisplay *display,
2615                                          gboolean    need_code)
2616 {
2617   GdkX11Display *display_x11;
2618   GdkErrorTrap *trap;
2619   GSList *tmp_list;
2620   int result;
2621
2622   display_x11 = GDK_X11_DISPLAY (display);
2623
2624   g_return_val_if_fail (display_x11->error_traps != NULL, Success);
2625
2626   /* Find the first trap that hasn't been popped already */
2627   trap = NULL; /* quiet gcc */
2628   for (tmp_list = display_x11->error_traps;
2629        tmp_list != NULL;
2630        tmp_list = tmp_list->next)
2631     {
2632       trap = tmp_list->data;
2633
2634       if (trap->end_sequence == 0)
2635         break;
2636     }
2637
2638   g_return_val_if_fail (trap != NULL, Success);
2639   g_assert (trap->end_sequence == 0);
2640
2641   /* May need to sync to fill in trap->error_code if we care about
2642    * getting an error code.
2643    */
2644   if (need_code)
2645     {
2646       gulong processed_sequence;
2647       gulong next_sequence;
2648
2649       next_sequence = XNextRequest (display_x11->xdisplay);
2650       processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
2651
2652       /* If our last request was already processed, there is no point
2653        * in syncing. i.e. if last request was a round trip (or even if
2654        * we got an event with the serial of a non-round-trip)
2655        */
2656       if ((next_sequence - 1) != processed_sequence)
2657         {
2658           XSync (display_x11->xdisplay, False);
2659         }
2660
2661       result = trap->error_code;
2662     }
2663   else
2664     {
2665       result = Success;
2666     }
2667
2668   /* record end of trap, giving us a range of
2669    * error sequences we'll ignore.
2670    */
2671   trap->end_sequence = XNextRequest (display_x11->xdisplay);
2672
2673   /* remove the Xlib callback */
2674   _gdk_x11_error_handler_pop ();
2675
2676   /* we may already be outdated */
2677   delete_outdated_error_traps (display_x11);
2678
2679   return result;
2680 }
2681
2682 /**
2683  * gdk_x11_display_error_trap_pop:
2684  * @display: (type GdkX11Display): the display
2685  *
2686  * Pops the error trap pushed by gdk_x11_display_error_trap_push().
2687  * Will XSync() if necessary and will always block until
2688  * the error is known to have occurred or not occurred,
2689  * so the error code can be returned.
2690  *
2691  * If you don't need to use the return value,
2692  * gdk_x11_display_error_trap_pop_ignored() would be more efficient.
2693  *
2694  * See gdk_error_trap_pop() for the all-displays-at-once
2695  * equivalent.
2696  *
2697  * Since: 3.0
2698  *
2699  * Return value: X error code or 0 on success
2700  */
2701 gint
2702 gdk_x11_display_error_trap_pop (GdkDisplay *display)
2703 {
2704   g_return_val_if_fail (GDK_IS_X11_DISPLAY (display), Success);
2705
2706   return gdk_x11_display_error_trap_pop_internal (display, TRUE);
2707 }
2708
2709 /**
2710  * gdk_x11_display_error_trap_pop_ignored:
2711  * @display: (type GdkX11Display): the display
2712  *
2713  * Pops the error trap pushed by gdk_x11_display_error_trap_push().
2714  * Does not block to see if an error occurred; merely records the
2715  * range of requests to ignore errors for, and ignores those errors
2716  * if they arrive asynchronously.
2717  *
2718  * See gdk_error_trap_pop_ignored() for the all-displays-at-once
2719  * equivalent.
2720  *
2721  * Since: 3.0
2722  */
2723 void
2724 gdk_x11_display_error_trap_pop_ignored (GdkDisplay *display)
2725 {
2726   g_return_if_fail (GDK_IS_X11_DISPLAY (display));
2727
2728   gdk_x11_display_error_trap_pop_internal (display, FALSE);
2729 }
2730
2731 /**
2732  * gdk_x11_set_sm_client_id:
2733  * @sm_client_id: the client id assigned by the session manager when the
2734  *    connection was opened, or %NULL to remove the property.
2735  *
2736  * Sets the <literal>SM_CLIENT_ID</literal> property on the application's leader window so that
2737  * the window manager can save the application's state using the X11R6 ICCCM
2738  * session management protocol.
2739  *
2740  * See the X Session Management Library documentation for more information on
2741  * session management and the Inter-Client Communication Conventions Manual
2742  *
2743  * Since: 2.24
2744  */
2745 void
2746 gdk_x11_set_sm_client_id (const gchar *sm_client_id)
2747 {
2748  GSList *displays, *l;
2749
2750   g_free (gdk_sm_client_id);
2751   gdk_sm_client_id = g_strdup (sm_client_id);
2752
2753   displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
2754   for (l = displays; l; l = l->next)
2755     set_sm_client_id (l->data, sm_client_id);
2756
2757   g_slist_free (displays);
2758 }
2759
2760 static void
2761 gdk_x11_display_event_data_copy (GdkDisplay    *display,
2762                                 const GdkEvent *src,
2763                                 GdkEvent       *dst)
2764 {
2765 }
2766
2767 static void
2768 gdk_x11_display_event_data_free (GdkDisplay *display,
2769                                  GdkEvent *event)
2770 {
2771 }
2772
2773 static gint
2774 pop_error_trap (GdkDisplay *display,
2775                 gboolean    ignored)
2776 {
2777   if (ignored)
2778     {
2779       gdk_x11_display_error_trap_pop_ignored (display);
2780       return Success;
2781     }
2782   else
2783     {
2784       return gdk_x11_display_error_trap_pop (display);
2785     }
2786 }
2787
2788 static GdkKeymap *
2789 gdk_x11_display_get_keymap (GdkDisplay *display)
2790 {
2791   GdkX11Display *display_x11;
2792   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
2793   display_x11 = GDK_X11_DISPLAY (display);
2794
2795   if (!display_x11->keymap)
2796     display_x11->keymap = g_object_new (GDK_TYPE_X11_KEYMAP, NULL);
2797
2798   display_x11->keymap->display = display;
2799
2800   return display_x11->keymap;
2801 }
2802
2803 static void
2804 gdk_x11_display_class_init (GdkX11DisplayClass * class)
2805 {
2806   GObjectClass *object_class = G_OBJECT_CLASS (class);
2807   GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
2808
2809   object_class->dispose = gdk_x11_display_dispose;
2810   object_class->finalize = gdk_x11_display_finalize;
2811
2812   display_class->window_type = GDK_TYPE_X11_WINDOW;
2813
2814   display_class->get_name = gdk_x11_display_get_name;
2815   display_class->get_n_screens = gdk_x11_display_get_n_screens;
2816   display_class->get_screen = gdk_x11_display_get_screen;
2817   display_class->get_default_screen = gdk_x11_display_get_default_screen;
2818   display_class->beep = gdk_x11_display_beep;
2819   display_class->sync = gdk_x11_display_sync;
2820   display_class->flush = gdk_x11_display_flush;
2821   display_class->has_pending = gdk_x11_display_has_pending;
2822   display_class->queue_events = _gdk_x11_display_queue_events;
2823   display_class->get_default_group = gdk_x11_display_get_default_group;
2824   display_class->supports_selection_notification = gdk_x11_display_supports_selection_notification;
2825   display_class->request_selection_notification = gdk_x11_display_request_selection_notification;
2826   display_class->supports_clipboard_persistence = gdk_x11_display_supports_clipboard_persistence;
2827   display_class->store_clipboard = gdk_x11_display_store_clipboard;
2828   display_class->supports_shapes = gdk_x11_display_supports_shapes;
2829   display_class->supports_input_shapes = gdk_x11_display_supports_input_shapes;
2830   display_class->supports_composite = gdk_x11_display_supports_composite;
2831   display_class->list_devices = gdk_x11_display_list_devices;
2832   display_class->get_app_launch_context = _gdk_x11_display_get_app_launch_context;
2833   display_class->get_cursor_for_type = _gdk_x11_display_get_cursor_for_type;
2834   display_class->get_cursor_for_name = _gdk_x11_display_get_cursor_for_name;
2835   display_class->get_cursor_for_pixbuf = _gdk_x11_display_get_cursor_for_pixbuf;
2836   display_class->get_default_cursor_size = _gdk_x11_display_get_default_cursor_size;
2837   display_class->get_maximal_cursor_size = _gdk_x11_display_get_maximal_cursor_size;
2838   display_class->supports_cursor_alpha = _gdk_x11_display_supports_cursor_alpha;
2839   display_class->supports_cursor_color = _gdk_x11_display_supports_cursor_color;
2840
2841   display_class->before_process_all_updates = _gdk_x11_display_before_process_all_updates;
2842   display_class->after_process_all_updates = _gdk_x11_display_after_process_all_updates;
2843   display_class->get_next_serial = gdk_x11_display_get_next_serial;
2844   display_class->notify_startup_complete = gdk_x11_display_notify_startup_complete;
2845   display_class->event_data_copy = gdk_x11_display_event_data_copy;
2846   display_class->event_data_free = gdk_x11_display_event_data_free;
2847   display_class->create_window_impl = _gdk_x11_display_create_window_impl;
2848   display_class->get_keymap = gdk_x11_display_get_keymap;
2849   display_class->push_error_trap = gdk_x11_display_error_trap_push;
2850   display_class->pop_error_trap = pop_error_trap;
2851   display_class->get_selection_owner = _gdk_x11_display_get_selection_owner;
2852   display_class->set_selection_owner = _gdk_x11_display_set_selection_owner;
2853   display_class->send_selection_notify = _gdk_x11_display_send_selection_notify;
2854   display_class->get_selection_property = _gdk_x11_display_get_selection_property;
2855   display_class->convert_selection = _gdk_x11_display_convert_selection;
2856   display_class->text_property_to_utf8_list = _gdk_x11_display_text_property_to_utf8_list;
2857   display_class->utf8_to_string_target = _gdk_x11_display_utf8_to_string_target;
2858 }