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

   1 /* GDK - The GIMP Drawing Kit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include "gdk.h"
  28 #include "gdkprivate-x11.h"
  29 #include "gdkinternals.h"
  30 #include "gdkx.h"
  31
  32 #include "gdkkeysyms.h"
  33
  34 #include "xsettings-client.h"
  35
  36 #if HAVE_CONFIG_H
  37 #  include <config.h>
  38 #  if STDC_HEADERS
  39 #    include <string.h>
  40 #  endif
  41 #endif
  42
  43 #include "gdkinputprivate.h"
  44
  45 #ifdef HAVE_XKB
  46 #include <X11/XKBlib.h>
  47 #endif
  48
  49 #include <X11/Xatom.h>
  50
  51 typedef struct _GdkIOClosure GdkIOClosure;
  52 typedef struct _GdkEventPrivate GdkEventPrivate;
  53
  54 #define DOUBLE_CLICK_TIME      250
  55 #define TRIPLE_CLICK_TIME      500
  56 #define DOUBLE_CLICK_DIST      5
  57 #define TRIPLE_CLICK_DIST      5
  58
  59 typedef enum
  60 {
  61   /* Following flag is set for events on the event queue during
  62    * translation and cleared afterwards.
  63    */
  64   GDK_EVENT_PENDING = 1 << 0
  65 } GdkEventFlags;
  66
  67 struct _GdkIOClosure
  68 {
  69   GdkInputFunction function;
  70   GdkInputCondition condition;
  71   GdkDestroyNotify notify;
  72   gpointer data;
  73 };
  74
  75 struct _GdkEventPrivate
  76 {
  77   GdkEvent event;
  78   guint    flags;
  79 };
  80
  81 /*
  82  * Private function declarations
  83  */
  84
  85 static gint      gdk_event_apply_filters (XEvent   *xevent,
  86                                           GdkEvent *event,
  87                                           GList    *filters);
  88 static gint      gdk_event_translate     (GdkEvent *event,
  89                                           XEvent   *xevent,
  90                                           gboolean  return_exposes);
  91 #if 0
  92 static Bool      gdk_event_get_type     (Display   *display,
  93                                          XEvent    *xevent,
  94                                          XPointer   arg);
  95 #endif
  96
  97 static gboolean gdk_event_prepare  (GSource     *source,
  98                                     gint        *timeout);
  99 static gboolean gdk_event_check    (GSource     *source);
 100 static gboolean gdk_event_dispatch (GSource     *source,
 101                                     GSourceFunc  callback,
 102                                     gpointer     user_data);
 103
 104 GdkFilterReturn gdk_wm_protocols_filter (GdkXEvent *xev,
 105                                          GdkEvent  *event,
 106                                          gpointer   data);
 107
 108 static void gdk_xsettings_watch_cb  (Window            window,
 109                                      Bool              is_start,
 110                                      long              mask,
 111                                      void             *cb_data);
 112 static void gdk_xsettings_notify_cb (const char       *name,
 113                                      XSettingsAction   action,
 114                                      XSettingsSetting *setting,
 115                                      void             *data);
 116
 117 /* Private variable declarations
 118  */
 119
 120 static int connection_number = 0;           /* The file descriptor number of our
 121                                              *  connection to the X server. This
 122                                              *  is used so that we may determine
 123                                              *  when events are pending by using
 124                                              *  the "select" system call.
 125                                              */
 126 static GList *client_filters;               /* Filters for client messages */
 127
 128 static GSourceFuncs event_funcs = {
 129   gdk_event_prepare,
 130   gdk_event_check,
 131   gdk_event_dispatch,
 132   NULL
 133 };
 134
 135 static GPollFD event_poll_fd;
 136
 137 static Window wmspec_check_window = None;
 138
 139 static XSettingsClient *xsettings_client;
 140
 141 /*********************************************
 142  * Functions for maintaining the event queue *
 143  *********************************************/
 144
 145 void
 146 gdk_events_init (void)
 147 {
 148   GSource *source;
 149
 150   connection_number = ConnectionNumber (gdk_display);
 151   GDK_NOTE (MISC,
 152             g_message ("connection number: %d", connection_number));
 153
 154
 155   source = g_source_new (&event_funcs, sizeof (GSource));
 156   g_source_set_priority (source, GDK_PRIORITY_EVENTS);
 157
 158   event_poll_fd.fd = connection_number;
 159   event_poll_fd.events = G_IO_IN;
 160
 161   g_source_add_poll (source, &event_poll_fd);
 162   g_source_set_can_recurse (source, TRUE);
 163   g_source_attach (source, NULL);
 164
 165   gdk_add_client_message_filter (gdk_wm_protocols,
 166                                  gdk_wm_protocols_filter, NULL);
 167
 168   xsettings_client = xsettings_client_new (gdk_display, DefaultScreen (gdk_display),
 169                                            gdk_xsettings_notify_cb,
 170                                            gdk_xsettings_watch_cb,
 171                                            NULL);
 172 }
 173
 174 /*
 175  *--------------------------------------------------------------
 176  * gdk_events_pending
 177  *
 178  *   Returns if events are pending on the queue.
 179  *
 180  * Arguments:
 181  *
 182  * Results:
 183  *   Returns TRUE if events are pending
 184  *
 185  * Side effects:
 186  *
 187  *--------------------------------------------------------------
 188  */
 189
 190 gboolean
 191 gdk_events_pending (void)
 192 {
 193   return (gdk_event_queue_find_first() || XPending (gdk_display));
 194 }
 195
 196 /*
 197  *--------------------------------------------------------------
 198  * gdk_event_get_graphics_expose
 199  *
 200  *   Waits for a GraphicsExpose or NoExpose event
 201  *
 202  * Arguments:
 203  *
 204  * Results:
 205  *   For GraphicsExpose events, returns a pointer to the event
 206  *   converted into a GdkEvent Otherwise, returns NULL.
 207  *
 208  * Side effects:
 209  *
 210  *-------------------------------------------------------------- */
 211
 212 static Bool
 213 graphics_expose_predicate (Display  *display,
 214                            XEvent   *xevent,
 215                            XPointer  arg)
 216 {
 217   if (xevent->xany.window == GDK_DRAWABLE_XID (arg) &&
 218       (xevent->xany.type == GraphicsExpose ||
 219        xevent->xany.type == NoExpose))
 220     return True;
 221   else
 222     return False;
 223 }
 224
 225 GdkEvent*
 226 gdk_event_get_graphics_expose (GdkWindow *window)
 227 {
 228   XEvent xevent;
 229   GdkEvent *event;
 230
 231   g_return_val_if_fail (window != NULL, NULL);
 232
 233   XIfEvent (gdk_display, &xevent, graphics_expose_predicate, (XPointer) window);
 234
 235   if (xevent.xany.type == GraphicsExpose)
 236     {
 237       event = gdk_event_new ();
 238
 239       if (gdk_event_translate (event, &xevent, TRUE))
 240         return event;
 241       else
 242         gdk_event_free (event);
 243     }
 244
 245   return NULL;
 246 }
 247
 248 static gint
 249 gdk_event_apply_filters (XEvent *xevent,
 250                          GdkEvent *event,
 251                          GList *filters)
 252 {
 253   GList *tmp_list;
 254   GdkFilterReturn result;
 255
 256   tmp_list = filters;
 257
 258   while (tmp_list)
 259     {
 260       GdkEventFilter *filter = (GdkEventFilter*) tmp_list->data;
 261
 262       tmp_list = tmp_list->next;
 263       result = filter->function (xevent, event, filter->data);
 264       if (result !=  GDK_FILTER_CONTINUE)
 265         return result;
 266     }
 267
 268   return GDK_FILTER_CONTINUE;
 269 }
 270
 271 void
 272 gdk_add_client_message_filter (GdkAtom       message_type,
 273                                GdkFilterFunc func,
 274                                gpointer      data)
 275 {
 276   GdkClientFilter *filter = g_new (GdkClientFilter, 1);
 277
 278   filter->type = message_type;
 279   filter->function = func;
 280   filter->data = data;
 281
 282   client_filters = g_list_prepend (client_filters, filter);
 283 }
 284
 285 static GdkAtom wm_state_atom = 0;
 286 static GdkAtom wm_desktop_atom = 0;
 287
 288 static void
 289 gdk_check_wm_state_changed (GdkWindow *window)
 290 {
 291   Atom type;
 292   gint format;
 293   gulong nitems;
 294   gulong bytes_after;
 295   GdkAtom *atoms = NULL;
 296   gulong i;
 297   GdkAtom sticky_atom;
 298   GdkAtom maxvert_atom;
 299   GdkAtom maxhorz_atom;
 300   gboolean found_sticky, found_maxvert, found_maxhorz;
 301   GdkWindowState old_state;
 302
 303   if (GDK_WINDOW_DESTROYED (window))
 304     return;
 305
 306   if (wm_state_atom == 0)
 307     wm_state_atom = gdk_atom_intern ("_NET_WM_STATE", FALSE);
 308
 309   if (wm_desktop_atom == 0)
 310     wm_desktop_atom = gdk_atom_intern ("_NET_WM_DESKTOP", FALSE);
 311
 312   XGetWindowProperty (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window),
 313                       wm_state_atom, 0, G_MAXLONG,
 314                       False, XA_ATOM, &type, &format, &nitems,
 315                       &bytes_after, (guchar **)&atoms);
 316
 317   if (type != None)
 318     {
 319
 320       sticky_atom = gdk_atom_intern ("_NET_WM_STATE_STICKY", FALSE);
 321       maxvert_atom = gdk_atom_intern ("_NET_WM_STATE_MAXIMIZED_VERT", FALSE);
 322       maxhorz_atom = gdk_atom_intern ("_NET_WM_STATE_MAXIMIZED_HORZ", FALSE);
 323
 324       found_sticky = FALSE;
 325       found_maxvert = FALSE;
 326       found_maxhorz = FALSE;
 327
 328       i = 0;
 329       while (i < nitems)
 330         {
 331           if (atoms[i] == sticky_atom)
 332             found_sticky = TRUE;
 333           else if (atoms[i] == maxvert_atom)
 334             found_maxvert = TRUE;
 335           else if (atoms[i] == maxhorz_atom)
 336             found_maxhorz = TRUE;
 337
 338           ++i;
 339         }
 340
 341       XFree (atoms);
 342     }
 343   else
 344     {
 345       found_sticky = FALSE;
 346       found_maxvert = FALSE;
 347       found_maxhorz = FALSE;
 348     }
 349
 350   /* For found_sticky to remain TRUE, we have to also be on desktop
 351    * 0xFFFFFFFF
 352    */
 353
 354   if (found_sticky)
 355     {
 356       gulong *desktop;
 357
 358       XGetWindowProperty (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window),
 359                           wm_desktop_atom, 0, G_MAXLONG,
 360                           False, XA_CARDINAL, &type, &format, &nitems,
 361                           &bytes_after, (guchar **)&desktop);
 362
 363       if (type != None)
 364         {
 365           if (*desktop != 0xFFFFFFFF)
 366             found_sticky = FALSE;
 367           XFree (desktop);
 368         }
 369     }
 370
 371   old_state = gdk_window_get_state (window);
 372
 373   if (old_state & GDK_WINDOW_STATE_STICKY)
 374     {
 375       if (!found_sticky)
 376         gdk_synthesize_window_state (window,
 377                                      GDK_WINDOW_STATE_STICKY,
 378                                      0);
 379     }
 380   else
 381     {
 382       if (found_sticky)
 383         gdk_synthesize_window_state (window,
 384                                      0,
 385                                      GDK_WINDOW_STATE_STICKY);
 386     }
 387
 388   /* Our "maximized" means both vertical and horizontal; if only one,
 389    * we don't expose that via GDK
 390    */
 391   if (old_state & GDK_WINDOW_STATE_MAXIMIZED)
 392     {
 393       if (!(found_maxvert && found_maxhorz))
 394         gdk_synthesize_window_state (window,
 395                                      GDK_WINDOW_STATE_MAXIMIZED,
 396                                      0);
 397     }
 398   else
 399     {
 400       if (found_maxvert && found_maxhorz)
 401         gdk_synthesize_window_state (window,
 402                                      0,
 403                                      GDK_WINDOW_STATE_MAXIMIZED);
 404     }
 405 }
 406
 407 #define HAS_FOCUS(window_impl)                           \
 408   ((window_impl)->has_focus || (window_impl)->has_pointer_focus)
 409
 410 static void
 411 generate_focus_event (GdkWindow *window,
 412                       gboolean   in)
 413 {
 414   GdkEvent event;
 415
 416   event.type = GDK_FOCUS_CHANGE;
 417   event.focus_change.window = window;
 418   event.focus_change.send_event = FALSE;
 419   event.focus_change.in = in;
 420
 421   gdk_event_put (&event);
 422 }
 423
 424 static gint
 425 gdk_event_translate (GdkEvent *event,
 426                      XEvent   *xevent,
 427                      gboolean  return_exposes)
 428 {
 429
 430   GdkWindow *window;
 431   GdkWindowObject *window_private;
 432   GdkWindowImplX11 *window_impl = NULL;
 433   static XComposeStatus compose;
 434   KeySym keysym;
 435   int charcount;
 436   char buf[16];
 437   gint return_val;
 438   gint xoffset, yoffset;
 439
 440   return_val = FALSE;
 441
 442   /* Find the GdkWindow that this event occurred in.
 443    *
 444    * We handle events with window=None
 445    *  specially - they are generated by XFree86's XInput under
 446    *  some circumstances.
 447    */
 448
 449   if (xevent->xany.window == None)
 450     {
 451       return_val = _gdk_input_window_none_event (event, xevent);
 452
 453       if (return_val >= 0)      /* was handled */
 454         return return_val;
 455       else
 456         return_val = FALSE;
 457     }
 458
 459   window = gdk_window_lookup (xevent->xany.window);
 460   window_private = (GdkWindowObject *) window;
 461
 462   if (_gdk_moveresize_window &&
 463       (xevent->xany.type == MotionNotify ||
 464        xevent->xany.type == ButtonRelease))
 465     {
 466       _gdk_moveresize_handle_event (xevent);
 467       gdk_window_unref (window);
 468       return FALSE;
 469     }
 470
 471   if (wmspec_check_window != None &&
 472       xevent->xany.window == wmspec_check_window)
 473     {
 474       if (xevent->type == DestroyNotify)
 475         wmspec_check_window = None;
 476
 477       /* Eat events on this window unless someone had wrapped
 478        * it as a foreign window
 479        */
 480       if (window == NULL)
 481         return FALSE;
 482     }
 483
 484   /* FIXME: window might be a GdkPixmap!!! */
 485   if (window != NULL)
 486     {
 487       window_impl = GDK_WINDOW_IMPL_X11 (window_private->impl);
 488
 489       if (xevent->xany.window != GDK_WINDOW_XID (window))
 490         {
 491           g_assert (xevent->xany.window == window_impl->focus_window);
 492
 493           switch (xevent->type)
 494             {
 495             case KeyPress:
 496             case KeyRelease:
 497               xevent->xany.window = GDK_WINDOW_XID (window);
 498               break;
 499             default:
 500               return False;
 501             }
 502         }
 503
 504       gdk_window_ref (window);
 505     }
 506
 507   event->any.window = window;
 508   event->any.send_event = xevent->xany.send_event ? TRUE : FALSE;
 509
 510   if (window_private && GDK_WINDOW_DESTROYED (window))
 511     {
 512       if (xevent->type != DestroyNotify)
 513         return FALSE;
 514     }
 515   else
 516     {
 517       /* Check for filters for this window
 518        */
 519       GdkFilterReturn result;
 520       result = gdk_event_apply_filters (xevent, event,
 521                                         window_private
 522                                         ?window_private->filters
 523                                         :gdk_default_filters);
 524
 525       if (result != GDK_FILTER_CONTINUE)
 526         {
 527           return_val = (result == GDK_FILTER_TRANSLATE) ? TRUE : FALSE;
 528           goto done;
 529         }
 530     }
 531
 532   /* We do a "manual" conversion of the XEvent to a
 533    *  GdkEvent. The structures are mostly the same so
 534    *  the conversion is fairly straightforward. We also
 535    *  optionally print debugging info regarding events
 536    *  received.
 537    */
 538
 539   return_val = TRUE;
 540
 541   if (window)
 542     {
 543       _gdk_windowing_window_get_offsets (window, &xoffset, &yoffset);
 544     }
 545   else
 546     {
 547       xoffset = 0;
 548       yoffset = 0;
 549     }
 550
 551   switch (xevent->type)
 552     {
 553     case KeyPress:
 554       /* Lookup the string corresponding to the given keysym.
 555        */
 556
 557       charcount = XLookupString (&xevent->xkey, buf, 16,
 558                                  &keysym, &compose);
 559       event->key.keyval = keysym;
 560       event->key.hardware_keycode = xevent->xkey.keycode;
 561
 562       if (charcount > 0 && buf[charcount-1] == '\0')
 563         charcount --;
 564       else
 565         buf[charcount] = '\0';
 566
 567 #ifdef G_ENABLE_DEBUG
 568       if (gdk_debug_flags & GDK_DEBUG_EVENTS)
 569         {
 570           g_message ("key press:\twindow: %ld  key: %12s  %d",
 571                      xevent->xkey.window,
 572                      event->key.keyval ? XKeysymToString (event->key.keyval) : "(none)",
 573                      event->key.keyval);
 574           if (charcount > 0)
 575             g_message ("\t\tlength: %4d string: \"%s\"",
 576                        charcount, buf);
 577         }
 578 #endif /* G_ENABLE_DEBUG */
 579
 580       /* bits 13 and 14 in the "state" field are the keyboard group */
 581 #define KEYBOARD_GROUP_SHIFT 13
 582 #define KEYBOARD_GROUP_MASK ((1 << 13) | (1 << 14))
 583
 584       event->key.type = GDK_KEY_PRESS;
 585       event->key.window = window;
 586       event->key.time = xevent->xkey.time;
 587       event->key.state = (GdkModifierType) xevent->xkey.state;
 588       event->key.string = g_strdup (buf);
 589       event->key.length = charcount;
 590
 591       event->key.group = (xevent->xkey.state & KEYBOARD_GROUP_MASK) >> KEYBOARD_GROUP_SHIFT;
 592
 593       break;
 594
 595     case KeyRelease:
 596       /* Lookup the string corresponding to the given keysym.
 597        */
 598
 599       /* Emulate detectable auto-repeat by checking to see
 600        * if the next event is a key press with the same
 601        * keycode and timestamp, and if so, ignoring the event.
 602        */
 603
 604       if (!_gdk_have_xkb_autorepeat && XPending (gdk_display))
 605         {
 606           XEvent next_event;
 607
 608           XPeekEvent (gdk_display, &next_event);
 609
 610           if (next_event.type == KeyPress &&
 611               next_event.xkey.keycode == xevent->xkey.keycode &&
 612               next_event.xkey.time == xevent->xkey.time)
 613             break;
 614         }
 615
 616       keysym = GDK_VoidSymbol;
 617       charcount = XLookupString (&xevent->xkey, buf, 16,
 618                                  &keysym, &compose);
 619       event->key.keyval = keysym;
 620
 621       GDK_NOTE (EVENTS,
 622                 g_message ("key release:\t\twindow: %ld  key: %12s  %d",
 623                            xevent->xkey.window,
 624                            XKeysymToString (event->key.keyval),
 625                            event->key.keyval));
 626
 627       event->key.type = GDK_KEY_RELEASE;
 628       event->key.window = window;
 629       event->key.time = xevent->xkey.time;
 630       event->key.state = (GdkModifierType) xevent->xkey.state;
 631       event->key.length = 0;
 632       event->key.string = NULL;
 633
 634       break;
 635
 636     case ButtonPress:
 637       GDK_NOTE (EVENTS,
 638                 g_message ("button press:\t\twindow: %ld  x,y: %d %d  button: %d",
 639                            xevent->xbutton.window,
 640                            xevent->xbutton.x, xevent->xbutton.y,
 641                            xevent->xbutton.button));
 642
 643       if (window_private &&
 644           (window_private->extension_events != 0) &&
 645           gdk_input_ignore_core)
 646         {
 647           return_val = FALSE;
 648           break;
 649         }
 650
 651       /* If we get a ButtonPress event where the button is 4 or 5,
 652          it's a Scroll event */
 653       switch (xevent->xbutton.button)
 654         {
 655         case 4: /* up */
 656         case 5: /* down */
 657         case 6: /* left */
 658         case 7: /* right */
 659           event->scroll.type = GDK_SCROLL;
 660
 661           if (xevent->xbutton.button == 4)
 662             event->scroll.direction = GDK_SCROLL_UP;
 663           else if (xevent->xbutton.button == 5)
 664             event->scroll.direction = GDK_SCROLL_DOWN;
 665           else if (xevent->xbutton.button == 6)
 666             event->scroll.direction = GDK_SCROLL_LEFT;
 667           else
 668             event->scroll.direction = GDK_SCROLL_RIGHT;
 669
 670           event->scroll.window = window;
 671           event->scroll.time = xevent->xbutton.x;
 672           event->scroll.x = xevent->xbutton.x + xoffset;
 673           event->scroll.y = xevent->xbutton.y + yoffset;
 674           event->scroll.x_root = (gfloat)xevent->xbutton.x_root;
 675           event->scroll.y_root = (gfloat)xevent->xbutton.y_root;
 676           event->scroll.state = (GdkModifierType) xevent->xbutton.state;
 677           event->scroll.device = gdk_core_pointer;
 678           break;
 679
 680         default:
 681           event->button.type = GDK_BUTTON_PRESS;
 682           event->button.window = window;
 683           event->button.time = xevent->xbutton.time;
 684           event->button.x = xevent->xbutton.x + xoffset;
 685           event->button.y = xevent->xbutton.y + yoffset;
 686           event->button.x_root = (gfloat)xevent->xbutton.x_root;
 687           event->button.y_root = (gfloat)xevent->xbutton.y_root;
 688           event->button.axes = NULL;
 689           event->button.state = (GdkModifierType) xevent->xbutton.state;
 690           event->button.button = xevent->xbutton.button;
 691           event->button.device = gdk_core_pointer;
 692
 693           gdk_event_button_generate (event);
 694           break;
 695         }
 696
 697       break;
 698
 699     case ButtonRelease:
 700       GDK_NOTE (EVENTS,
 701                 g_message ("button release:\twindow: %ld  x,y: %d %d  button: %d",
 702                            xevent->xbutton.window,
 703                            xevent->xbutton.x, xevent->xbutton.y,
 704                            xevent->xbutton.button));
 705
 706       if (window_private &&
 707           (window_private->extension_events != 0) &&
 708           gdk_input_ignore_core)
 709         {
 710           return_val = FALSE;
 711           break;
 712         }
 713
 714       /* We treat button presses as scroll wheel events, so ignore the release */
 715       if (xevent->xbutton.button == 4 || xevent->xbutton.button == 5 ||
 716           xevent->xbutton.button == 6 || xevent->xbutton.button ==7)
 717         {
 718           return_val = FALSE;
 719           break;
 720         }
 721
 722       event->button.type = GDK_BUTTON_RELEASE;
 723       event->button.window = window;
 724       event->button.time = xevent->xbutton.time;
 725       event->button.x = xevent->xbutton.x + xoffset;
 726       event->button.y = xevent->xbutton.y + yoffset;
 727       event->button.x_root = (gfloat)xevent->xbutton.x_root;
 728       event->button.y_root = (gfloat)xevent->xbutton.y_root;
 729       event->button.axes = NULL;
 730       event->button.state = (GdkModifierType) xevent->xbutton.state;
 731       event->button.button = xevent->xbutton.button;
 732       event->button.device = gdk_core_pointer;
 733
 734       break;
 735
 736     case MotionNotify:
 737       GDK_NOTE (EVENTS,
 738                 g_message ("motion notify:\t\twindow: %ld  x,y: %d %d  hint: %s",
 739                            xevent->xmotion.window,
 740                            xevent->xmotion.x, xevent->xmotion.y,
 741                            (xevent->xmotion.is_hint) ? "true" : "false"));
 742
 743       if (window_private &&
 744           (window_private->extension_events != 0) &&
 745           gdk_input_ignore_core)
 746         {
 747           return_val = FALSE;
 748           break;
 749         }
 750
 751       event->motion.type = GDK_MOTION_NOTIFY;
 752       event->motion.window = window;
 753       event->motion.time = xevent->xmotion.time;
 754       event->motion.x = xevent->xmotion.x + xoffset;
 755       event->motion.y = xevent->xmotion.y + yoffset;
 756       event->motion.x_root = (gfloat)xevent->xmotion.x_root;
 757       event->motion.y_root = (gfloat)xevent->xmotion.y_root;
 758       event->motion.axes = NULL;
 759       event->motion.state = (GdkModifierType) xevent->xmotion.state;
 760       event->motion.is_hint = xevent->xmotion.is_hint;
 761       event->motion.device = gdk_core_pointer;
 762
 763       break;
 764
 765     case EnterNotify:
 766       GDK_NOTE (EVENTS,
 767                 g_message ("enter notify:\t\twindow: %ld  detail: %d subwin: %ld",
 768                            xevent->xcrossing.window,
 769                            xevent->xcrossing.detail,
 770                            xevent->xcrossing.subwindow));
 771
 772       /* Handle focusing (in the case where no window manager is running */
 773       if (window &&
 774           GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD &&
 775           xevent->xcrossing.detail != NotifyInferior &&
 776           xevent->xcrossing.focus && !window_impl->has_focus)
 777         {
 778           gboolean had_focus = HAS_FOCUS (window_impl);
 779
 780           window_impl->has_pointer_focus = TRUE;
 781
 782           if (HAS_FOCUS (window_impl) != had_focus)
 783             generate_focus_event (window, TRUE);
 784         }
 785
 786       /* Tell XInput stuff about it if appropriate */
 787       if (window_private &&
 788           !GDK_WINDOW_DESTROYED (window) &&
 789           window_private->extension_events != 0)
 790         _gdk_input_enter_event (&xevent->xcrossing, window);
 791
 792       event->crossing.type = GDK_ENTER_NOTIFY;
 793       event->crossing.window = window;
 794
 795       /* If the subwindow field of the XEvent is non-NULL, then
 796        *  lookup the corresponding GdkWindow.
 797        */
 798       if (xevent->xcrossing.subwindow != None)
 799         event->crossing.subwindow = gdk_window_lookup (xevent->xcrossing.subwindow);
 800       else
 801         event->crossing.subwindow = NULL;
 802
 803       event->crossing.time = xevent->xcrossing.time;
 804       event->crossing.x = xevent->xcrossing.x + xoffset;
 805       event->crossing.y = xevent->xcrossing.y + yoffset;
 806       event->crossing.x_root = xevent->xcrossing.x_root;
 807       event->crossing.y_root = xevent->xcrossing.y_root;
 808
 809       /* Translate the crossing mode into Gdk terms.
 810        */
 811       switch (xevent->xcrossing.mode)
 812         {
 813         case NotifyNormal:
 814           event->crossing.mode = GDK_CROSSING_NORMAL;
 815           break;
 816         case NotifyGrab:
 817           event->crossing.mode = GDK_CROSSING_GRAB;
 818           break;
 819         case NotifyUngrab:
 820           event->crossing.mode = GDK_CROSSING_UNGRAB;
 821           break;
 822         };
 823
 824       /* Translate the crossing detail into Gdk terms.
 825        */
 826       switch (xevent->xcrossing.detail)
 827         {
 828         case NotifyInferior:
 829           event->crossing.detail = GDK_NOTIFY_INFERIOR;
 830           break;
 831         case NotifyAncestor:
 832           event->crossing.detail = GDK_NOTIFY_ANCESTOR;
 833           break;
 834         case NotifyVirtual:
 835           event->crossing.detail = GDK_NOTIFY_VIRTUAL;
 836           break;
 837         case NotifyNonlinear:
 838           event->crossing.detail = GDK_NOTIFY_NONLINEAR;
 839           break;
 840         case NotifyNonlinearVirtual:
 841           event->crossing.detail = GDK_NOTIFY_NONLINEAR_VIRTUAL;
 842           break;
 843         default:
 844           event->crossing.detail = GDK_NOTIFY_UNKNOWN;
 845           break;
 846         }
 847
 848       event->crossing.focus = xevent->xcrossing.focus;
 849       event->crossing.state = xevent->xcrossing.state;
 850
 851       break;
 852
 853     case LeaveNotify:
 854       GDK_NOTE (EVENTS,
 855                 g_message ("leave notify:\t\twindow: %ld  detail: %d subwin: %ld",
 856                            xevent->xcrossing.window,
 857                            xevent->xcrossing.detail, xevent->xcrossing.subwindow));
 858
 859       /* Handle focusing (in the case where no window manager is running */
 860       if (window &&
 861           GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD &&
 862           xevent->xcrossing.detail != NotifyInferior &&
 863           xevent->xcrossing.focus && !window_impl->has_focus)
 864         {
 865           gboolean had_focus = HAS_FOCUS (window_impl);
 866
 867           window_impl->has_pointer_focus = FALSE;
 868
 869           if (HAS_FOCUS (window_impl) != had_focus)
 870             generate_focus_event (window, FALSE);
 871         }
 872
 873       event->crossing.type = GDK_LEAVE_NOTIFY;
 874       event->crossing.window = window;
 875
 876       /* If the subwindow field of the XEvent is non-NULL, then
 877        *  lookup the corresponding GdkWindow.
 878        */
 879       if (xevent->xcrossing.subwindow != None)
 880         event->crossing.subwindow = gdk_window_lookup (xevent->xcrossing.subwindow);
 881       else
 882         event->crossing.subwindow = NULL;
 883
 884       event->crossing.time = xevent->xcrossing.time;
 885       event->crossing.x = xevent->xcrossing.x + xoffset;
 886       event->crossing.y = xevent->xcrossing.y + yoffset;
 887       event->crossing.x_root = xevent->xcrossing.x_root;
 888       event->crossing.y_root = xevent->xcrossing.y_root;
 889
 890       /* Translate the crossing mode into Gdk terms.
 891        */
 892       switch (xevent->xcrossing.mode)
 893         {
 894         case NotifyNormal:
 895           event->crossing.mode = GDK_CROSSING_NORMAL;
 896           break;
 897         case NotifyGrab:
 898           event->crossing.mode = GDK_CROSSING_GRAB;
 899           break;
 900         case NotifyUngrab:
 901           event->crossing.mode = GDK_CROSSING_UNGRAB;
 902           break;
 903         };
 904
 905       /* Translate the crossing detail into Gdk terms.
 906        */
 907       switch (xevent->xcrossing.detail)
 908         {
 909         case NotifyInferior:
 910           event->crossing.detail = GDK_NOTIFY_INFERIOR;
 911           break;
 912         case NotifyAncestor:
 913           event->crossing.detail = GDK_NOTIFY_ANCESTOR;
 914           break;
 915         case NotifyVirtual:
 916           event->crossing.detail = GDK_NOTIFY_VIRTUAL;
 917           break;
 918         case NotifyNonlinear:
 919           event->crossing.detail = GDK_NOTIFY_NONLINEAR;
 920           break;
 921         case NotifyNonlinearVirtual:
 922           event->crossing.detail = GDK_NOTIFY_NONLINEAR_VIRTUAL;
 923           break;
 924         default:
 925           event->crossing.detail = GDK_NOTIFY_UNKNOWN;
 926           break;
 927         }
 928
 929       event->crossing.focus = xevent->xcrossing.focus;
 930       event->crossing.state = xevent->xcrossing.state;
 931
 932       break;
 933
 934       /* We only care about focus events that indicate that _this_
 935        * window (not a ancestor or child) got or lost the focus
 936        */
 937     case FocusIn:
 938       GDK_NOTE (EVENTS,
 939                 g_message ("focus in:\t\twindow: %ld", xevent->xfocus.window));
 940
 941       if (window && GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD)
 942         {
 943           gboolean had_focus = HAS_FOCUS (window_impl);
 944
 945           switch (xevent->xfocus.detail)
 946             {
 947             case NotifyAncestor:
 948             case NotifyNonlinear:
 949             case NotifyVirtual:
 950             case NotifyNonlinearVirtual:
 951               window_impl->has_focus = TRUE;
 952               break;
 953             case NotifyPointer:
 954               window_impl->has_pointer_focus = TRUE;
 955               break;
 956             case NotifyInferior:
 957             case NotifyPointerRoot:
 958             case NotifyDetailNone:
 959               break;
 960             }
 961
 962           if (HAS_FOCUS (window_impl) != had_focus)
 963             generate_focus_event (window, TRUE);
 964         }
 965       break;
 966     case FocusOut:
 967       GDK_NOTE (EVENTS,
 968                 g_message ("focus out:\t\twindow: %ld", xevent->xfocus.window));
 969
 970       if (window && GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD)
 971         {
 972           gboolean had_focus = HAS_FOCUS (window_impl);
 973
 974           switch (xevent->xfocus.detail)
 975             {
 976             case NotifyAncestor:
 977             case NotifyNonlinear:
 978             case NotifyVirtual:
 979             case NotifyNonlinearVirtual:
 980               window_impl->has_focus = FALSE;
 981               break;
 982             case NotifyPointer:
 983               window_impl->has_pointer_focus = FALSE;
 984             break;
 985             case NotifyInferior:
 986             case NotifyPointerRoot:
 987             case NotifyDetailNone:
 988               break;
 989             }
 990
 991           if (HAS_FOCUS (window_impl) != had_focus)
 992             generate_focus_event (window, FALSE);
 993         }
 994       break;
 995
 996 #if 0
 997           /* gdk_keyboard_grab() causes following events. These events confuse
 998            * the XIM focus, so ignore them.
 999            */
1000           if (xevent->xfocus.mode == NotifyGrab ||
1001               xevent->xfocus.mode == NotifyUngrab)
1002             break;
1003 #endif
1004
1005     case KeymapNotify:
1006       GDK_NOTE (EVENTS,
1007                 g_message ("keymap notify"));
1008
1009       /* Not currently handled */
1010       return_val = FALSE;
1011       break;
1012
1013     case Expose:
1014       GDK_NOTE (EVENTS,
1015                 g_message ("expose:\t\twindow: %ld  %d  x,y: %d %d  w,h: %d %d%s",
1016                            xevent->xexpose.window, xevent->xexpose.count,
1017                            xevent->xexpose.x, xevent->xexpose.y,
1018                            xevent->xexpose.width, xevent->xexpose.height,
1019                            event->any.send_event ? " (send)" : ""));
1020       {
1021         GdkRectangle expose_rect;
1022
1023         expose_rect.x = xevent->xexpose.x + xoffset;
1024         expose_rect.y = xevent->xexpose.y + yoffset;
1025         expose_rect.width = xevent->xexpose.width;
1026         expose_rect.height = xevent->xexpose.height;
1027
1028         if (return_exposes)
1029           {
1030             event->expose.type = GDK_EXPOSE;
1031             event->expose.area = expose_rect;
1032             event->expose.region = gdk_region_rectangle (&expose_rect);
1033             event->expose.window = window;
1034             event->expose.count = xevent->xexpose.count;
1035
1036             return_val = TRUE;
1037           }
1038         else
1039           {
1040             _gdk_window_process_expose (window, xevent->xexpose.serial, &expose_rect);
1041
1042             return_val = FALSE;
1043           }
1044
1045         return_val = FALSE;
1046       }
1047
1048       break;
1049
1050     case GraphicsExpose:
1051       {
1052         GdkRectangle expose_rect;
1053
1054         GDK_NOTE (EVENTS,
1055                   g_message ("graphics expose:\tdrawable: %ld",
1056                              xevent->xgraphicsexpose.drawable));
1057
1058         expose_rect.x = xevent->xgraphicsexpose.x + xoffset;
1059         expose_rect.y = xevent->xgraphicsexpose.y + yoffset;
1060         expose_rect.width = xevent->xgraphicsexpose.width;
1061         expose_rect.height = xevent->xgraphicsexpose.height;
1062
1063         if (return_exposes)
1064           {
1065             event->expose.type = GDK_EXPOSE;
1066             event->expose.area = expose_rect;
1067             event->expose.region = gdk_region_rectangle (&expose_rect);
1068             event->expose.window = window;
1069             event->expose.count = xevent->xgraphicsexpose.count;
1070
1071             return_val = TRUE;
1072           }
1073         else
1074           {
1075             _gdk_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect);
1076
1077             return_val = FALSE;
1078           }
1079
1080       }
1081       break;
1082
1083     case NoExpose:
1084       GDK_NOTE (EVENTS,
1085                 g_message ("no expose:\t\tdrawable: %ld",
1086                            xevent->xnoexpose.drawable));
1087
1088       event->no_expose.type = GDK_NO_EXPOSE;
1089       event->no_expose.window = window;
1090
1091       break;
1092
1093     case VisibilityNotify:
1094 #ifdef G_ENABLE_DEBUG
1095       if (gdk_debug_flags & GDK_DEBUG_EVENTS)
1096         switch (xevent->xvisibility.state)
1097           {
1098           case VisibilityFullyObscured:
1099             g_message ("visibility notify:\twindow: %ld  none",
1100                        xevent->xvisibility.window);
1101             break;
1102           case VisibilityPartiallyObscured:
1103             g_message ("visibility notify:\twindow: %ld  partial",
1104                        xevent->xvisibility.window);
1105             break;
1106           case VisibilityUnobscured:
1107             g_message ("visibility notify:\twindow: %ld  full",
1108                        xevent->xvisibility.window);
1109             break;
1110           }
1111 #endif /* G_ENABLE_DEBUG */
1112
1113       event->visibility.type = GDK_VISIBILITY_NOTIFY;
1114       event->visibility.window = window;
1115
1116       switch (xevent->xvisibility.state)
1117         {
1118         case VisibilityFullyObscured:
1119           event->visibility.state = GDK_VISIBILITY_FULLY_OBSCURED;
1120           break;
1121
1122         case VisibilityPartiallyObscured:
1123           event->visibility.state = GDK_VISIBILITY_PARTIAL;
1124           break;
1125
1126         case VisibilityUnobscured:
1127           event->visibility.state = GDK_VISIBILITY_UNOBSCURED;
1128           break;
1129         }
1130
1131       break;
1132
1133     case CreateNotify:
1134       GDK_NOTE (EVENTS,
1135                 g_message ("create notify:\twindow: %ld  x,y: %d %d     w,h: %d %d  b-w: %d  parent: %ld         ovr: %d",
1136                            xevent->xcreatewindow.window,
1137                            xevent->xcreatewindow.x,
1138                            xevent->xcreatewindow.y,
1139                            xevent->xcreatewindow.width,
1140                            xevent->xcreatewindow.height,
1141                            xevent->xcreatewindow.border_width,
1142                            xevent->xcreatewindow.parent,
1143                            xevent->xcreatewindow.override_redirect));
1144       /* not really handled */
1145       break;
1146
1147     case DestroyNotify:
1148       GDK_NOTE (EVENTS,
1149                 g_message ("destroy notify:\twindow: %ld",
1150                            xevent->xdestroywindow.window));
1151
1152       event->any.type = GDK_DESTROY;
1153       event->any.window = window;
1154
1155       return_val = window_private && !GDK_WINDOW_DESTROYED (window);
1156
1157       if (window && GDK_WINDOW_XID (window) != GDK_ROOT_WINDOW())
1158         gdk_window_destroy_notify (window);
1159       break;
1160
1161     case UnmapNotify:
1162       GDK_NOTE (EVENTS,
1163                 g_message ("unmap notify:\t\twindow: %ld",
1164                            xevent->xmap.window));
1165
1166       event->any.type = GDK_UNMAP;
1167       event->any.window = window;
1168
1169       /* If we are shown (not withdrawn) and get an unmap, it means we
1170        * were iconified in the X sense. If we are withdrawn, and get
1171        * an unmap, it means we hid the window ourselves, so we
1172        * will have already flipped the iconified bit off.
1173        */
1174       if (window && GDK_WINDOW_IS_MAPPED (window))
1175         gdk_synthesize_window_state (window,
1176                                      0,
1177                                      GDK_WINDOW_STATE_ICONIFIED);
1178
1179       if (gdk_xgrab_window == window_private)
1180         gdk_xgrab_window = NULL;
1181
1182       break;
1183
1184     case MapNotify:
1185       GDK_NOTE (EVENTS,
1186                 g_message ("map notify:\t\twindow: %ld",
1187                            xevent->xmap.window));
1188
1189       event->any.type = GDK_MAP;
1190       event->any.window = window;
1191
1192       /* Unset iconified if it was set */
1193       if (window && (((GdkWindowObject*)window)->state & GDK_WINDOW_STATE_ICONIFIED))
1194         gdk_synthesize_window_state (window,
1195                                      GDK_WINDOW_STATE_ICONIFIED,
1196                                      0);
1197
1198       break;
1199
1200     case ReparentNotify:
1201       GDK_NOTE (EVENTS,
1202                 g_message ("reparent notify:\twindow: %ld  x,y: %d %d  parent: %ld      ovr: %d",
1203                            xevent->xreparent.window,
1204                            xevent->xreparent.x,
1205                            xevent->xreparent.y,
1206                            xevent->xreparent.parent,
1207                            xevent->xreparent.override_redirect));
1208
1209       /* Not currently handled */
1210       return_val = FALSE;
1211       break;
1212
1213     case ConfigureNotify:
1214       GDK_NOTE (EVENTS,
1215                 g_message ("configure notify:\twindow: %ld  x,y: %d %d  w,h: %d %d  b-w: %d  above: %ld  ovr: %d%s",
1216                            xevent->xconfigure.window,
1217                            xevent->xconfigure.x,
1218                            xevent->xconfigure.y,
1219                            xevent->xconfigure.width,
1220                            xevent->xconfigure.height,
1221                            xevent->xconfigure.border_width,
1222                            xevent->xconfigure.above,
1223                            xevent->xconfigure.override_redirect,
1224                            !window
1225                            ? " (discarding)"
1226                            : GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD
1227                            ? " (discarding child)"
1228                            : ""));
1229       if (window &&
1230           !GDK_WINDOW_DESTROYED (window) &&
1231           (window_private->extension_events != 0))
1232         _gdk_input_configure_event (&xevent->xconfigure, window);
1233
1234       if (!window || GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD)
1235         return_val = FALSE;
1236       else
1237         {
1238           event->configure.type = GDK_CONFIGURE;
1239           event->configure.window = window;
1240           event->configure.width = xevent->xconfigure.width;
1241           event->configure.height = xevent->xconfigure.height;
1242
1243           if (!xevent->xconfigure.x &&
1244               !xevent->xconfigure.y &&
1245               !GDK_WINDOW_DESTROYED (window))
1246             {
1247               gint tx = 0;
1248               gint ty = 0;
1249               Window child_window = 0;
1250
1251               gdk_error_trap_push ();
1252               if (XTranslateCoordinates (GDK_DRAWABLE_XDISPLAY (window),
1253                                          GDK_DRAWABLE_XID (window),
1254                                          gdk_root_window,
1255                                          0, 0,
1256                                          &tx, &ty,
1257                                          &child_window))
1258                 {
1259                   if (!gdk_error_trap_pop ())
1260                     {
1261                       event->configure.x = tx;
1262                       event->configure.y = ty;
1263                     }
1264                 }
1265               else
1266                 gdk_error_trap_pop ();
1267             }
1268           else
1269             {
1270               event->configure.x = xevent->xconfigure.x;
1271               event->configure.y = xevent->xconfigure.y;
1272             }
1273           window_private->x = event->configure.x;
1274           window_private->y = event->configure.y;
1275           GDK_WINDOW_IMPL_X11 (window_private->impl)->width = xevent->xconfigure.width;
1276           GDK_WINDOW_IMPL_X11 (window_private->impl)->height = xevent->xconfigure.height;
1277           if (window_private->resize_count >= 1)
1278             {
1279               window_private->resize_count -= 1;
1280
1281               if (window_private->resize_count == 0 &&
1282                   window == _gdk_moveresize_window)
1283                 _gdk_moveresize_configure_done ();
1284             }
1285         }
1286       break;
1287
1288     case PropertyNotify:
1289       GDK_NOTE (EVENTS,
1290                 gchar *atom = gdk_atom_name (xevent->xproperty.atom);
1291                 g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s",
1292                            xevent->xproperty.window,
1293                            xevent->xproperty.atom,
1294                            atom ? "\"" : "",
1295                            atom ? atom : "unknown",
1296                            atom ? "\"" : "");
1297                 g_free (atom);
1298                 );
1299
1300       event->property.type = GDK_PROPERTY_NOTIFY;
1301       event->property.window = window;
1302       event->property.atom = xevent->xproperty.atom;
1303       event->property.time = xevent->xproperty.time;
1304       event->property.state = xevent->xproperty.state;
1305
1306       if (wm_state_atom == 0)
1307         wm_state_atom = gdk_atom_intern ("_NET_WM_STATE", FALSE);
1308
1309       if (wm_desktop_atom == 0)
1310         wm_desktop_atom = gdk_atom_intern ("_NET_WM_DESKTOP", FALSE);
1311
1312       if (event->property.atom == wm_state_atom ||
1313           event->property.atom == wm_desktop_atom)
1314         {
1315           /* If window state changed, then synthesize those events. */
1316           gdk_check_wm_state_changed (event->property.window);
1317         }
1318
1319       break;
1320
1321     case SelectionClear:
1322       GDK_NOTE (EVENTS,
1323                 g_message ("selection clear:\twindow: %ld",
1324                            xevent->xproperty.window));
1325
1326       if (_gdk_selection_filter_clear_event (&xevent->xselectionclear))
1327         {
1328           event->selection.type = GDK_SELECTION_CLEAR;
1329           event->selection.window = window;
1330           event->selection.selection = xevent->xselectionclear.selection;
1331           event->selection.time = xevent->xselectionclear.time;
1332         }
1333       else
1334         return_val = FALSE;
1335
1336       break;
1337
1338     case SelectionRequest:
1339       GDK_NOTE (EVENTS,
1340                 g_message ("selection request:\twindow: %ld",
1341                            xevent->xproperty.window));
1342
1343       event->selection.type = GDK_SELECTION_REQUEST;
1344       event->selection.window = window;
1345       event->selection.selection = xevent->xselectionrequest.selection;
1346       event->selection.target = xevent->xselectionrequest.target;
1347       event->selection.property = xevent->xselectionrequest.property;
1348       event->selection.requestor = xevent->xselectionrequest.requestor;
1349       event->selection.time = xevent->xselectionrequest.time;
1350
1351       break;
1352
1353     case SelectionNotify:
1354       GDK_NOTE (EVENTS,
1355                 g_message ("selection notify:\twindow: %ld",
1356                            xevent->xproperty.window));
1357
1358
1359       event->selection.type = GDK_SELECTION_NOTIFY;
1360       event->selection.window = window;
1361       event->selection.selection = xevent->xselection.selection;
1362       event->selection.target = xevent->xselection.target;
1363       event->selection.property = xevent->xselection.property;
1364       event->selection.time = xevent->xselection.time;
1365
1366       break;
1367
1368     case ColormapNotify:
1369       GDK_NOTE (EVENTS,
1370                 g_message ("colormap notify:\twindow: %ld",
1371                            xevent->xcolormap.window));
1372
1373       /* Not currently handled */
1374       return_val = FALSE;
1375       break;
1376
1377     case ClientMessage:
1378       {
1379         GList *tmp_list;
1380         GdkFilterReturn result = GDK_FILTER_CONTINUE;
1381
1382         GDK_NOTE (EVENTS,
1383                   g_message ("client message:\twindow: %ld",
1384                              xevent->xclient.window));
1385
1386         tmp_list = client_filters;
1387         while (tmp_list)
1388           {
1389             GdkClientFilter *filter = tmp_list->data;
1390             if (filter->type == xevent->xclient.message_type)
1391               {
1392                 result = (*filter->function) (xevent, event, filter->data);
1393                 break;
1394               }
1395
1396             tmp_list = tmp_list->next;
1397           }
1398
1399         switch (result)
1400           {
1401           case GDK_FILTER_REMOVE:
1402             return_val = FALSE;
1403             break;
1404           case GDK_FILTER_TRANSLATE:
1405             return_val = TRUE;
1406             break;
1407           case GDK_FILTER_CONTINUE:
1408             /* Send unknown ClientMessage's on to Gtk for it to use */
1409             event->client.type = GDK_CLIENT_EVENT;
1410             event->client.window = window;
1411             event->client.message_type = xevent->xclient.message_type;
1412             event->client.data_format = xevent->xclient.format;
1413             memcpy(&event->client.data, &xevent->xclient.data,
1414                    sizeof(event->client.data));
1415           }
1416       }
1417
1418       break;
1419
1420     case MappingNotify:
1421       GDK_NOTE (EVENTS,
1422                 g_message ("mapping notify"));
1423
1424       /* Let XLib know that there is a new keyboard mapping.
1425        */
1426       XRefreshKeyboardMapping (&xevent->xmapping);
1427       ++_gdk_keymap_serial;
1428       return_val = FALSE;
1429       break;
1430
1431     default:
1432 #ifdef HAVE_XKB
1433       if (xevent->type == _gdk_xkb_event_type)
1434         {
1435           XkbEvent *xkb_event = (XkbEvent *)xevent;
1436
1437           switch (xkb_event->any.xkb_type)
1438             {
1439             case XkbMapNotify:
1440               ++_gdk_keymap_serial;
1441               return_val = FALSE;
1442               break;
1443
1444             case XkbStateNotify:
1445               _gdk_keymap_state_changed ();
1446               break;
1447             }
1448         }
1449       else
1450 #endif
1451         {
1452           /* something else - (e.g., a Xinput event) */
1453
1454           if (window_private &&
1455               !GDK_WINDOW_DESTROYED (window_private) &&
1456               (window_private->extension_events != 0))
1457             return_val = _gdk_input_other_event(event, xevent, window);
1458           else
1459             return_val = FALSE;
1460
1461           break;
1462         }
1463     }
1464
1465  done:
1466   if (return_val)
1467     {
1468       if (event->any.window)
1469         gdk_window_ref (event->any.window);
1470       if (((event->any.type == GDK_ENTER_NOTIFY) ||
1471            (event->any.type == GDK_LEAVE_NOTIFY)) &&
1472           (event->crossing.subwindow != NULL))
1473         gdk_window_ref (event->crossing.subwindow);
1474     }
1475   else
1476     {
1477       /* Mark this event as having no resources to be freed */
1478       event->any.window = NULL;
1479       event->any.type = GDK_NOTHING;
1480     }
1481
1482   if (window)
1483     gdk_window_unref (window);
1484
1485   return return_val;
1486 }
1487
1488 GdkFilterReturn
1489 gdk_wm_protocols_filter (GdkXEvent *xev,
1490                          GdkEvent  *event,
1491                          gpointer data)
1492 {
1493   XEvent *xevent = (XEvent *)xev;
1494
1495   if ((Atom) xevent->xclient.data.l[0] == gdk_wm_delete_window)
1496     {
1497   /* The delete window request specifies a window
1498    *  to delete. We don't actually destroy the
1499    *  window because "it is only a request". (The
1500    *  window might contain vital data that the
1501    *  program does not want destroyed). Instead
1502    *  the event is passed along to the program,
1503    *  which should then destroy the window.
1504    */
1505       GDK_NOTE (EVENTS,
1506                 g_message ("delete window:\t\twindow: %ld",
1507                            xevent->xclient.window));
1508
1509       event->any.type = GDK_DELETE;
1510
1511       return GDK_FILTER_TRANSLATE;
1512     }
1513   else if ((Atom) xevent->xclient.data.l[0] == gdk_wm_take_focus)
1514     {
1515       GdkWindow *win = event->any.window;
1516       Window focus_win = GDK_WINDOW_IMPL_X11(((GdkWindowObject *)win)->impl)->focus_window;
1517
1518       /* There is no way of knowing reliably whether we are viewable so we need
1519        * to trap errors so we don't cause a BadMatch.
1520        */
1521       gdk_error_trap_push ();
1522       XSetInputFocus (GDK_WINDOW_XDISPLAY (win),
1523                       focus_win,
1524                       RevertToParent,
1525                       xevent->xclient.data.l[1]);
1526       XSync (GDK_WINDOW_XDISPLAY (win), False);
1527       gdk_error_trap_pop ();
1528     }
1529   else if ((Atom) xevent->xclient.data.l[0] == gdk_atom_intern ("_NET_WM_PING", FALSE))
1530     {
1531       XEvent xev = *xevent;
1532
1533       xev.xclient.window = gdk_root_window;
1534       XSendEvent (gdk_display, gdk_root_window, False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
1535     }
1536
1537   return GDK_FILTER_REMOVE;
1538 }
1539
1540 #if 0
1541 static Bool
1542 gdk_event_get_type (Display  *display,
1543                     XEvent   *xevent,
1544                     XPointer  arg)
1545 {
1546   GdkEvent event;
1547   GdkPredicate *pred;
1548
1549   if (gdk_event_translate (&event, xevent, FALSE))
1550     {
1551       pred = (GdkPredicate*) arg;
1552       return (* pred->func) (&event, pred->data);
1553     }
1554
1555   return FALSE;
1556 }
1557 #endif
1558
1559 void
1560 gdk_events_queue (void)
1561 {
1562   GList *node;
1563   GdkEvent *event;
1564   XEvent xevent;
1565
1566   while (!gdk_event_queue_find_first() && XPending (gdk_display))
1567     {
1568       XNextEvent (gdk_display, &xevent);
1569
1570       switch (xevent.type)
1571         {
1572         case KeyPress:
1573         case KeyRelease:
1574           break;
1575         default:
1576           if (XFilterEvent (&xevent, None))
1577             continue;
1578         }
1579
1580       event = gdk_event_new ();
1581
1582       event->any.type = GDK_NOTHING;
1583       event->any.window = NULL;
1584       event->any.send_event = xevent.xany.send_event ? TRUE : FALSE;
1585
1586       ((GdkEventPrivate *)event)->flags |= GDK_EVENT_PENDING;
1587
1588       gdk_event_queue_append (event);
1589       node = gdk_queued_tail;
1590
1591       if (gdk_event_translate (event, &xevent, FALSE))
1592         {
1593           ((GdkEventPrivate *)event)->flags &= ~GDK_EVENT_PENDING;
1594         }
1595       else
1596         {
1597           gdk_event_queue_remove_link (node);
1598           g_list_free_1 (node);
1599           gdk_event_free (event);
1600         }
1601     }
1602 }
1603
1604 static gboolean
1605 gdk_event_prepare (GSource  *source,
1606                    gint     *timeout)
1607 {
1608   gboolean retval;
1609
1610   GDK_THREADS_ENTER ();
1611
1612   *timeout = -1;
1613
1614   retval = (gdk_event_queue_find_first () != NULL) || XPending (gdk_display);
1615
1616   GDK_THREADS_LEAVE ();
1617
1618   return retval;
1619 }
1620
1621 static gboolean
1622 gdk_event_check (GSource  *source)
1623 {
1624   gboolean retval;
1625
1626   GDK_THREADS_ENTER ();
1627
1628   if (event_poll_fd.revents & G_IO_IN)
1629     retval = (gdk_event_queue_find_first () != NULL) || XPending (gdk_display);
1630   else
1631     retval = FALSE;
1632
1633   GDK_THREADS_LEAVE ();
1634
1635   return retval;
1636 }
1637
1638 static gboolean
1639 gdk_event_dispatch (GSource    *source,
1640                     GSourceFunc callback,
1641                     gpointer    user_data)
1642 {
1643   GdkEvent *event;
1644
1645   GDK_THREADS_ENTER ();
1646
1647   gdk_events_queue();
1648   event = gdk_event_unqueue();
1649
1650   if (event)
1651     {
1652       if (gdk_event_func)
1653         (*gdk_event_func) (event, gdk_event_data);
1654
1655       gdk_event_free (event);
1656     }
1657
1658   GDK_THREADS_LEAVE ();
1659
1660   return TRUE;
1661 }
1662
1663 /* Sends a ClientMessage to all toplevel client windows */
1664 gboolean
1665 gdk_event_send_client_message (GdkEvent *event, guint32 xid)
1666 {
1667   XEvent sev;
1668
1669   g_return_val_if_fail(event != NULL, FALSE);
1670
1671   /* Set up our event to send, with the exception of its target window */
1672   sev.xclient.type = ClientMessage;
1673   sev.xclient.display = gdk_display;
1674   sev.xclient.format = event->client.data_format;
1675   sev.xclient.window = xid;
1676   memcpy(&sev.xclient.data, &event->client.data, sizeof(sev.xclient.data));
1677   sev.xclient.message_type = event->client.message_type;
1678
1679   return gdk_send_xevent (xid, False, NoEventMask, &sev);
1680 }
1681
1682 /* Sends a ClientMessage to all toplevel client windows */
1683 gboolean
1684 gdk_event_send_client_message_to_all_recurse (XEvent  *xev,
1685                                               guint32  xid,
1686                                               guint    level)
1687 {
1688   static GdkAtom wm_state_atom = GDK_NONE;
1689   Atom type = None;
1690   int format;
1691   unsigned long nitems, after;
1692   unsigned char *data;
1693   Window *ret_children, ret_root, ret_parent;
1694   unsigned int ret_nchildren;
1695   gint old_warnings = gdk_error_warnings;
1696   gboolean send = FALSE;
1697   gboolean found = FALSE;
1698   int i;
1699
1700   if (!wm_state_atom)
1701     wm_state_atom = gdk_atom_intern ("WM_STATE", FALSE);
1702
1703   gdk_error_warnings = FALSE;
1704   gdk_error_code = 0;
1705   XGetWindowProperty (gdk_display, xid, wm_state_atom, 0, 0, False, AnyPropertyType,
1706                       &type, &format, &nitems, &after, &data);
1707
1708   if (gdk_error_code)
1709     {
1710       gdk_error_warnings = old_warnings;
1711
1712       return FALSE;
1713     }
1714
1715   if (type)
1716     {
1717       send = TRUE;
1718       XFree (data);
1719     }
1720   else
1721     {
1722       /* OK, we're all set, now let's find some windows to send this to */
1723       if (XQueryTree (gdk_display, xid, &ret_root, &ret_parent,
1724                       &ret_children, &ret_nchildren) != True ||
1725           gdk_error_code)
1726         {
1727           gdk_error_warnings = old_warnings;
1728
1729           return FALSE;
1730         }
1731
1732       for(i = 0; i < ret_nchildren; i++)
1733         if (gdk_event_send_client_message_to_all_recurse (xev, ret_children[i], level + 1))
1734           found = TRUE;
1735
1736       XFree (ret_children);
1737     }
1738
1739   if (send || (!found && (level == 1)))
1740     {
1741       xev->xclient.window = xid;
1742       gdk_send_xevent (xid, False, NoEventMask, xev);
1743     }
1744
1745   gdk_error_warnings = old_warnings;
1746
1747   return (send || found);
1748 }
1749
1750 void
1751 gdk_event_send_clientmessage_toall (GdkEvent *event)
1752 {
1753   XEvent sev;
1754   gint old_warnings = gdk_error_warnings;
1755
1756   g_return_if_fail(event != NULL);
1757
1758   /* Set up our event to send, with the exception of its target window */
1759   sev.xclient.type = ClientMessage;
1760   sev.xclient.display = gdk_display;
1761   sev.xclient.format = event->client.data_format;
1762   memcpy(&sev.xclient.data, &event->client.data, sizeof(sev.xclient.data));
1763   sev.xclient.message_type = event->client.message_type;
1764
1765   gdk_event_send_client_message_to_all_recurse(&sev, gdk_root_window, 0);
1766
1767   gdk_error_warnings = old_warnings;
1768 }
1769
1770 /*
1771  *--------------------------------------------------------------
1772  * gdk_flush
1773  *
1774  *   Flushes the Xlib output buffer and then waits
1775  *   until all requests have been received and processed
1776  *   by the X server. The only real use for this function
1777  *   is in dealing with XShm.
1778  *
1779  * Arguments:
1780  *
1781  * Results:
1782  *
1783  * Side effects:
1784  *
1785  *--------------------------------------------------------------
1786  */
1787
1788 void
1789 gdk_flush (void)
1790 {
1791   XSync (gdk_display, False);
1792 }
1793
1794 static GdkAtom timestamp_prop_atom = 0;
1795
1796 static Bool
1797 timestamp_predicate (Display *display,
1798                      XEvent  *xevent,
1799                      XPointer arg)
1800 {
1801   Window xwindow = GPOINTER_TO_UINT (arg);
1802
1803   if (xevent->type == PropertyNotify &&
1804       xevent->xproperty.window == xwindow &&
1805       xevent->xproperty.atom == timestamp_prop_atom)
1806     return True;
1807
1808   return False;
1809 }
1810
1811 /**
1812  * gdk_x11_get_server_time:
1813  * @window: a #GdkWindow, used for communication with the server.
1814  *          The window must have GDK_PROPERTY_CHANGE_MASK in its
1815  *          events mask or a hang will result.
1816  *
1817  * Routine to get the current X server time stamp.
1818  *
1819  * Return value: the time stamp.
1820  **/
1821 guint32
1822 gdk_x11_get_server_time (GdkWindow *window)
1823 {
1824   Display *xdisplay;
1825   Window   xwindow;
1826   guchar c = 'a';
1827   XEvent xevent;
1828
1829   g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
1830   g_return_val_if_fail (!GDK_WINDOW_DESTROYED (window), 0);
1831
1832   if (!timestamp_prop_atom)
1833     timestamp_prop_atom = gdk_atom_intern ("GDK_TIMESTAMP_PROP", FALSE);
1834
1835   xdisplay = GDK_WINDOW_XDISPLAY (window);
1836   xwindow = GDK_WINDOW_XWINDOW (window);
1837
1838   XChangeProperty (xdisplay, xwindow,
1839                    timestamp_prop_atom, timestamp_prop_atom,
1840                    8, PropModeReplace, &c, 1);
1841
1842   XIfEvent (xdisplay, &xevent,
1843             timestamp_predicate, GUINT_TO_POINTER(xwindow));
1844
1845   return xevent.xproperty.time;
1846 }
1847
1848
1849 gboolean
1850 gdk_net_wm_supports (GdkAtom property)
1851 {
1852   static GdkAtom wmspec_check_atom = 0;
1853   static GdkAtom wmspec_supported_atom = 0;
1854   static GdkAtom *atoms = NULL;
1855   static gulong n_atoms = 0;
1856   Atom type;
1857   gint format;
1858   gulong nitems;
1859   gulong bytes_after;
1860   Window *xwindow;
1861   gulong i;
1862
1863   if (wmspec_check_window != None)
1864     {
1865       if (atoms == NULL)
1866         return FALSE;
1867
1868       i = 0;
1869       while (i < n_atoms)
1870         {
1871           if (atoms[i] == property)
1872             return TRUE;
1873
1874           ++i;
1875         }
1876
1877       return FALSE;
1878     }
1879
1880   if (atoms)
1881     XFree (atoms);
1882
1883   atoms = NULL;
1884   n_atoms = 0;
1885
1886   /* This function is very slow on every call if you are not running a
1887    * spec-supporting WM. For now not optimized, because it isn't in
1888    * any critical code paths, but if you used it somewhere that had to
1889    * be fast you want to avoid "GTK is slow with old WMs" complaints.
1890    * Probably at that point the function should be changed to query
1891    * _NET_SUPPORTING_WM_CHECK only once every 10 seconds or something.
1892    */
1893
1894   if (wmspec_check_atom == 0)
1895     wmspec_check_atom = gdk_atom_intern ("_NET_SUPPORTING_WM_CHECK", FALSE);
1896
1897   if (wmspec_supported_atom == 0)
1898     wmspec_supported_atom = gdk_atom_intern ("_NET_SUPPORTED", FALSE);
1899
1900   XGetWindowProperty (gdk_display, gdk_root_window,
1901                       wmspec_check_atom, 0, G_MAXLONG,
1902                       False, XA_WINDOW, &type, &format, &nitems,
1903                       &bytes_after, (guchar **)&xwindow);
1904
1905   if (type != XA_WINDOW)
1906     return FALSE;
1907
1908   gdk_error_trap_push ();
1909
1910   /* Find out if this WM goes away, so we can reset everything. */
1911   XSelectInput (gdk_display, *xwindow,
1912                 StructureNotifyMask);
1913
1914   gdk_flush ();
1915
1916   if (gdk_error_trap_pop ())
1917     {
1918       XFree (xwindow);
1919       return FALSE;
1920     }
1921
1922   XGetWindowProperty (gdk_display, gdk_root_window,
1923                       wmspec_supported_atom, 0, G_MAXLONG,
1924                       False, XA_ATOM, &type, &format, &n_atoms,
1925                       &bytes_after, (guchar **)&atoms);
1926
1927   if (type != XA_ATOM)
1928     return FALSE;
1929
1930   wmspec_check_window = *xwindow;
1931   XFree (xwindow);
1932
1933   /* since wmspec_check_window != None this isn't infinite. ;-) */
1934   return gdk_net_wm_supports (property);
1935 }
1936
1937 static struct
1938 {
1939   const char *xsettings_name;
1940   const char *gdk_name;
1941 } settings_map[] = {
1942   { "Net/DoubleClickTime", "gtk-double-click-timeout" },
1943   { "Net/DragThreshold", "gtk-drag-threshold" },
1944   { "Gtk/ColorPalette", "gtk-color-palette" },
1945   { "Gtk/ToolbarStyle", "gtk-toolbar-style" },
1946   { "Gtk/ToolbarIconSize", "gtk-toolbar-icon-size" },
1947   { "Net/CursorBlink", "gtk-cursor-blink" },
1948   { "Net/CursorBlinkTime", "gtk-cursor-blink-time" }
1949 };
1950
1951 static void
1952 gdk_xsettings_notify_cb (const char       *name,
1953                          XSettingsAction   action,
1954                          XSettingsSetting *setting,
1955                          void             *data)
1956 {
1957   GdkEvent new_event;
1958   int i;
1959
1960   new_event.type = GDK_SETTING;
1961   new_event.setting.window = NULL;
1962   new_event.setting.send_event = FALSE;
1963   new_event.setting.name = NULL;
1964
1965   for (i = 0; i < G_N_ELEMENTS (settings_map) ; i++)
1966     if (strcmp (settings_map[i].xsettings_name, name) == 0)
1967       {
1968         new_event.setting.name = g_strdup (settings_map[i].gdk_name);
1969         break;
1970       }
1971
1972   if (!new_event.setting.name)
1973     return;
1974
1975   switch (action)
1976     {
1977     case XSETTINGS_ACTION_NEW:
1978       new_event.setting.action = GDK_SETTING_ACTION_NEW;
1979       break;
1980     case XSETTINGS_ACTION_CHANGED:
1981       new_event.setting.action = GDK_SETTING_ACTION_CHANGED;
1982       break;
1983     case XSETTINGS_ACTION_DELETED:
1984       new_event.setting.action = GDK_SETTING_ACTION_DELETED;
1985       break;
1986     }
1987
1988   gdk_event_put (&new_event);
1989 }
1990
1991 static gboolean
1992 check_transform (const gchar *xsettings_name,
1993                  GType        src_type,
1994                  GType        dest_type)
1995 {
1996   if (!g_value_type_transformable (src_type, dest_type))
1997     {
1998       g_warning ("Cannot tranform xsetting %s of type %s to type %s\n",
1999                  xsettings_name,
2000                  g_type_name (src_type),
2001                  g_type_name (dest_type));
2002       return FALSE;
2003     }
2004   else
2005     return TRUE;
2006 }
2007
2008 gboolean
2009 gdk_setting_get (const gchar *name,
2010                  GValue      *value)
2011 {
2012   const char *xsettings_name = NULL;
2013   XSettingsResult result;
2014   XSettingsSetting *setting;
2015   gboolean success = FALSE;
2016   gint i;
2017   GValue tmp_val = { 0, };
2018
2019   for (i = 0; i < G_N_ELEMENTS (settings_map) ; i++)
2020     if (strcmp (settings_map[i].gdk_name, name) == 0)
2021       {
2022         xsettings_name = settings_map[i].xsettings_name;
2023         break;
2024       }
2025
2026   if (!xsettings_name)
2027     return FALSE;
2028
2029   result = xsettings_client_get_setting (xsettings_client, xsettings_name, &setting);
2030   if (result != XSETTINGS_SUCCESS)
2031     return FALSE;
2032
2033   switch (setting->type)
2034     {
2035     case XSETTINGS_TYPE_INT:
2036       if (check_transform (xsettings_name, G_TYPE_INT, G_VALUE_TYPE (value)))
2037         {
2038           g_value_init (&tmp_val, G_TYPE_INT);
2039           g_value_set_int (&tmp_val, setting->data.v_int);
2040           g_value_transform (&tmp_val, value);
2041
2042           success = TRUE;
2043         }
2044       break;
2045     case XSETTINGS_TYPE_STRING:
2046       if (check_transform (xsettings_name, G_TYPE_STRING, G_VALUE_TYPE (value)))
2047         {
2048           g_value_init (&tmp_val, G_TYPE_STRING);
2049           g_value_set_string (&tmp_val, setting->data.v_string);
2050           g_value_transform (&tmp_val, value);
2051
2052           success = TRUE;
2053         }
2054       break;
2055     case XSETTINGS_TYPE_COLOR:
2056       if (!check_transform (xsettings_name, GDK_TYPE_COLOR, G_VALUE_TYPE (value)))
2057         {
2058           GdkColor color;
2059
2060           g_value_init (&tmp_val, GDK_TYPE_COLOR);
2061
2062           color.pixel = 0;
2063           color.red = setting->data.v_color.red;
2064           color.green = setting->data.v_color.green;
2065           color.blue = setting->data.v_color.blue;
2066
2067           g_value_set_boxed (&tmp_val, &color);
2068
2069           g_value_transform (&tmp_val, value);
2070
2071           success = TRUE;
2072         }
2073       break;
2074     }
2075
2076   g_value_unset (&tmp_val);
2077
2078   xsettings_setting_free (setting);
2079
2080   return success;
2081 }
2082
2083 GdkFilterReturn
2084 gdk_xsettings_client_event_filter (GdkXEvent *xevent,
2085                                    GdkEvent  *event,
2086                                    gpointer   data)
2087 {
2088   if (xsettings_client_process_event (xsettings_client, (XEvent *)xevent))
2089     return GDK_FILTER_REMOVE;
2090   else
2091     return GDK_FILTER_CONTINUE;
2092 }
2093
2094 static void
2095 gdk_xsettings_watch_cb (Window window,
2096                         Bool   is_start,
2097                         long   mask,
2098                         void  *cb_data)
2099 {
2100   GdkWindow *gdkwin;
2101
2102   gdkwin = gdk_window_lookup (window);
2103   if (is_start)
2104     gdk_window_add_filter (gdkwin, gdk_xsettings_client_event_filter, NULL);
2105   else
2106     gdk_window_remove_filter (gdkwin, gdk_xsettings_client_event_filter, NULL);
2107 }