src/event.c

   1 /* event.c- event loop and handling
   2  *
   3  *  Window Maker window manager
   4  *
   5  *  Copyright (c) 1997-2003 Alfredo K. Kojima
   6  *  Copyright (c) 2014 Window Maker Team
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License along
  19  *  with this program; if not, write to the Free Software Foundation, Inc.,
  20  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #include "wconfig.h"
  24
  25 #ifdef HAVE_INOTIFY
  26 #include <sys/select.h>
  27 #include <sys/inotify.h>
  28 #endif
  29
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <unistd.h>
  33 #include <string.h>
  34 #include <strings.h>
  35 #include <time.h>
  36 #include <errno.h>
  37
  38 #include <X11/Xlib.h>
  39 #include <X11/Xutil.h>
  40 #include <X11/Xatom.h>
  41 #ifdef USE_XSHAPE
  42 # include <X11/extensions/shape.h>
  43 #endif
  44 #ifdef USE_DOCK_XDND
  45 #include "xdnd.h"
  46 #endif
  47
  48 #ifdef USE_RANDR
  49 #include <X11/extensions/Xrandr.h>
  50 #endif
  51
  52 #ifdef KEEP_XKB_LOCK_STATUS
  53 #include <X11/XKBlib.h>
  54 #endif                          /* KEEP_XKB_LOCK_STATUS */
  55
  56 #include "WindowMaker.h"
  57 #include "window.h"
  58 #include "actions.h"
  59 #include "client.h"
  60 #include "main.h"
  61 #include "cycling.h"
  62 #include "keybind.h"
  63 #include "application.h"
  64 #include "stacking.h"
  65 #include "defaults.h"
  66 #include "workspace.h"
  67 #include "dock.h"
  68 #include "framewin.h"
  69 #include "properties.h"
  70 #include "balloon.h"
  71 #include "xinerama.h"
  72 #include "wmspec.h"
  73 #include "rootmenu.h"
  74 #include "colormap.h"
  75 #include "screen.h"
  76 #include "shutdown.h"
  77 #include "misc.h"
  78 #include "event.h"
  79 #include "winmenu.h"
  80 #include "switchmenu.h"
  81 #include "wsmap.h"
  82
  83
  84 #define MOD_MASK wPreferences.modifier_mask
  85
  86 /************ Local stuff ***********/
  87
  88 static void saveTimestamp(XEvent *event);
  89 static void handleColormapNotify(XEvent *event);
  90 static void handleMapNotify(XEvent *event);
  91 static void handleUnmapNotify(XEvent *event);
  92 static void handleButtonPress(XEvent *event);
  93 static void handleExpose(XEvent *event);
  94 static void handleDestroyNotify(XEvent *event);
  95 static void handleConfigureRequest(XEvent *event);
  96 static void handleMapRequest(XEvent *event);
  97 static void handlePropertyNotify(XEvent *event);
  98 static void handleEnterNotify(XEvent *event);
  99 static void handleLeaveNotify(XEvent *event);
 100 static void handleExtensions(XEvent *event);
 101 static void handleClientMessage(XEvent *event);
 102 static void handleKeyPress(XEvent *event);
 103 static void handleFocusIn(XEvent *event);
 104 static void handleMotionNotify(XEvent *event);
 105 static void handleVisibilityNotify(XEvent *event);
 106 static void handle_inotify_events(void);
 107 static void handle_selection_request(XSelectionRequestEvent *event);
 108 static void handle_selection_clear(XSelectionClearEvent *event);
 109 static void wdelete_death_handler(WMagicNumber id);
 110
 111
 112 #ifdef USE_XSHAPE
 113 static void handleShapeNotify(XEvent *event);
 114 #endif
 115
 116 #ifdef KEEP_XKB_LOCK_STATUS
 117 static void handleXkbIndicatorStateNotify(XkbEvent *event);
 118 #endif
 119
 120 /* real dead process handler */
 121 static void handleDeadProcess(void);
 122
 123 typedef struct DeadProcesses {
 124         pid_t pid;
 125         unsigned char exit_status;
 126 } DeadProcesses;
 127
 128 /* stack of dead processes */
 129 static DeadProcesses deadProcesses[MAX_DEAD_PROCESSES];
 130 static int deadProcessPtr = 0;
 131
 132 typedef struct DeathHandler {
 133         WDeathHandler *callback;
 134         pid_t pid;
 135         void *client_data;
 136 } DeathHandler;
 137
 138 static WMArray *deathHandlers = NULL;
 139
 140 WMagicNumber wAddDeathHandler(pid_t pid, WDeathHandler * callback, void *cdata)
 141 {
 142         DeathHandler *handler;
 143
 144         handler = malloc(sizeof(DeathHandler));
 145         if (!handler)
 146                 return 0;
 147
 148         handler->pid = pid;
 149         handler->callback = callback;
 150         handler->client_data = cdata;
 151
 152         if (!deathHandlers)
 153                 deathHandlers = WMCreateArrayWithDestructor(8, free);
 154
 155         WMAddToArray(deathHandlers, handler);
 156
 157         return handler;
 158 }
 159
 160 static void wdelete_death_handler(WMagicNumber id)
 161 {
 162         DeathHandler *handler = (DeathHandler *) id;
 163
 164         if (!handler || !deathHandlers)
 165                 return;
 166
 167         /* array destructor will call free(handler) */
 168         WMRemoveFromArray(deathHandlers, handler);
 169 }
 170
 171 void DispatchEvent(XEvent * event)
 172 {
 173         if (deathHandlers)
 174                 handleDeadProcess();
 175
 176         if (WCHECK_STATE(WSTATE_NEED_EXIT)) {
 177                 WCHANGE_STATE(WSTATE_EXITING);
 178                 /* received SIGTERM */
 179                 /*
 180                  * WMHandleEvent() can't be called from anything
 181                  * executed inside here, or we can get in a infinite
 182                  * recursive loop.
 183                  */
 184                 Shutdown(WSExitMode);
 185
 186         } else if (WCHECK_STATE(WSTATE_NEED_RESTART)) {
 187                 WCHANGE_STATE(WSTATE_RESTARTING);
 188
 189                 Shutdown(WSRestartPreparationMode);
 190                 /* received SIGHUP */
 191                 Restart(NULL, True);
 192         } else if (WCHECK_STATE(WSTATE_NEED_REREAD)) {
 193                 WCHANGE_STATE(WSTATE_NORMAL);
 194                 wDefaultsCheckDomains(NULL);
 195         }
 196
 197         /* for the case that all that is wanted to be dispatched is
 198          * the stuff above */
 199         if (!event)
 200                 return;
 201
 202         saveTimestamp(event);
 203         switch (event->type) {
 204         case MapRequest:
 205                 handleMapRequest(event);
 206                 break;
 207
 208         case KeyPress:
 209                 handleKeyPress(event);
 210                 break;
 211
 212         case MotionNotify:
 213                 handleMotionNotify(event);
 214                 break;
 215
 216         case ConfigureRequest:
 217                 handleConfigureRequest(event);
 218                 break;
 219
 220         case DestroyNotify:
 221                 handleDestroyNotify(event);
 222                 break;
 223
 224         case MapNotify:
 225                 handleMapNotify(event);
 226                 break;
 227
 228         case UnmapNotify:
 229                 handleUnmapNotify(event);
 230                 break;
 231
 232         case ButtonPress:
 233                 handleButtonPress(event);
 234                 break;
 235
 236         case Expose:
 237                 handleExpose(event);
 238                 break;
 239
 240         case PropertyNotify:
 241                 handlePropertyNotify(event);
 242                 break;
 243
 244         case EnterNotify:
 245                 handleEnterNotify(event);
 246                 break;
 247
 248         case LeaveNotify:
 249                 handleLeaveNotify(event);
 250                 break;
 251
 252         case ClientMessage:
 253                 handleClientMessage(event);
 254                 break;
 255
 256         case ColormapNotify:
 257                 handleColormapNotify(event);
 258                 break;
 259
 260         case MappingNotify:
 261                 if (event->xmapping.request == MappingKeyboard || event->xmapping.request == MappingModifier)
 262                         XRefreshKeyboardMapping(&event->xmapping);
 263                 break;
 264
 265         case FocusIn:
 266                 handleFocusIn(event);
 267                 break;
 268
 269         case VisibilityNotify:
 270                 handleVisibilityNotify(event);
 271                 break;
 272
 273         case ConfigureNotify:
 274 #ifdef USE_RANDR
 275                 if (event->xconfigure.window == DefaultRootWindow(dpy))
 276                         XRRUpdateConfiguration(event);
 277 #endif
 278                 break;
 279
 280         case SelectionRequest:
 281                 handle_selection_request(&event->xselectionrequest);
 282                 break;
 283
 284         case SelectionClear:
 285                 handle_selection_clear(&event->xselectionclear);
 286                 break;
 287
 288         default:
 289                 handleExtensions(event);
 290                 break;
 291         }
 292 }
 293
 294 #ifdef HAVE_INOTIFY
 295 /*
 296  *----------------------------------------------------------------------
 297  * handle_inotify_events-
 298  *      Check for inotify events
 299  *
 300  * Returns:
 301  *      After reading events for the given file descriptor (fd) and
 302  *     watch descriptor (wd)
 303  *
 304  * Side effects:
 305  *      Calls wDefaultsCheckDomains if config database is updated
 306  *----------------------------------------------------------------------
 307  */
 308 static void handle_inotify_events(void)
 309 {
 310         ssize_t eventQLength;
 311         size_t i = 0;
 312         /* Make room for at lease 5 simultaneous events, with path + filenames */
 313         char buff[ (sizeof(struct inotify_event) + NAME_MAX + 1) * 5 ];
 314         /* Check config only once per read of the event queue */
 315         int oneShotFlag = 0;
 316
 317         /*
 318          * Read off the queued events
 319          * queue overflow is not checked (IN_Q_OVERFLOW). In practise this should
 320          * not occur; the block is on Xevents, but a config file change will normally
 321          * occur as a result of an Xevent - so the event queue should never have more than
 322          * a few entries before a read().
 323          */
 324         eventQLength = read(w_global.inotify.fd_event_queue,
 325                             buff, sizeof(buff) );
 326
 327         if (eventQLength < 0) {
 328                 wwarning(_("read problem when trying to get INotify event: %s"), strerror(errno));
 329                 return;
 330         }
 331
 332         /* check what events occurred */
 333         /* Should really check wd here too, but for now we only have one watch! */
 334         while (i < eventQLength) {
 335                 struct inotify_event *pevent = (struct inotify_event *)&buff[i];
 336
 337                 /*
 338                  * see inotify.h for event types.
 339                  */
 340                 if (pevent->mask & IN_DELETE_SELF) {
 341                         wwarning(_("the defaults database has been deleted!"
 342                                    " Restart Window Maker to create the database" " with the default settings"));
 343
 344                         if (w_global.inotify.fd_event_queue >= 0) {
 345                                 close(w_global.inotify.fd_event_queue);
 346                                 w_global.inotify.fd_event_queue = -1;
 347                         }
 348                 }
 349                 if (pevent->mask & IN_UNMOUNT) {
 350                         wwarning(_("the unit containing the defaults database has"
 351                                    " been unmounted. Setting --static mode." " Any changes will not be saved."));
 352
 353                         if (w_global.inotify.fd_event_queue >= 0) {
 354                                 close(w_global.inotify.fd_event_queue);
 355                                 w_global.inotify.fd_event_queue = -1;
 356                         }
 357
 358                         wPreferences.flags.noupdates = 1;
 359                 }
 360                 if ((pevent->mask & IN_MODIFY) && oneShotFlag == 0) {
 361                         wwarning(_("Inotify: Reading config files in defaults database."));
 362                         wDefaultsCheckDomains(NULL);
 363                         oneShotFlag = 1;
 364                 }
 365
 366                 /* move to next event in the buffer */
 367                 i += sizeof(struct inotify_event) + pevent->len;
 368         }
 369 }
 370 #endif /* HAVE_INOTIFY */
 371
 372 /*
 373  *----------------------------------------------------------------------
 374  * EventLoop-
 375  *      Processes X and internal events indefinitely.
 376  *
 377  * Returns:
 378  *      Never returns
 379  *
 380  * Side effects:
 381  *      The LastTimestamp global variable is updated.
 382  *      Calls inotifyGetEvents if defaults database changes.
 383  *----------------------------------------------------------------------
 384  */
 385 noreturn void EventLoop(void)
 386 {
 387         XEvent event;
 388 #ifdef HAVE_INOTIFY
 389         struct timeval time;
 390         fd_set rfds;
 391         int retVal = 0;
 392
 393         if (w_global.inotify.fd_event_queue < 0 || w_global.inotify.wd_defaults < 0)
 394                 retVal = -1;
 395 #endif
 396
 397         for (;;) {
 398
 399                 WMNextEvent(dpy, &event);       /* Blocks here */
 400                 WMHandleEvent(&event);
 401 #ifdef HAVE_INOTIFY
 402                 if (retVal != -1) {
 403                         time.tv_sec = 0;
 404                         time.tv_usec = 0;
 405                         FD_ZERO(&rfds);
 406                         FD_SET(w_global.inotify.fd_event_queue, &rfds);
 407
 408                         /* check for available read data from inotify - don't block! */
 409                         retVal = select(w_global.inotify.fd_event_queue + 1, &rfds, NULL, NULL, &time);
 410
 411                         if (retVal < 0) {       /* an error has occurred */
 412                                 wwarning(_("select failed. The inotify instance will be closed."
 413                                            " Changes to the defaults database will require"
 414                                            " a restart to take effect."));
 415                                 close(w_global.inotify.fd_event_queue);
 416                                 w_global.inotify.fd_event_queue = -1;
 417                                 continue;
 418                         }
 419                         if (FD_ISSET(w_global.inotify.fd_event_queue, &rfds))
 420                                 handle_inotify_events();
 421                 }
 422 #endif
 423         }
 424 }
 425
 426 /*
 427  *----------------------------------------------------------------------
 428  * ProcessPendingEvents --
 429  *      Processes the events that are currently pending (at the time
 430  *      this function is called) in the display's queue.
 431  *
 432  * Returns:
 433  *      After the pending events that were present at the function call
 434  *      are processed.
 435  *
 436  * Side effects:
 437  *      Many -- whatever handling events may involve.
 438  *
 439  *----------------------------------------------------------------------
 440  */
 441 void ProcessPendingEvents(void)
 442 {
 443         XEvent event;
 444         int count;
 445
 446         XSync(dpy, False);
 447
 448         /* Take a snapshot of the event count in the queue */
 449         count = XPending(dpy);
 450
 451         while (count > 0 && XPending(dpy)) {
 452                 WMNextEvent(dpy, &event);
 453                 WMHandleEvent(&event);
 454                 count--;
 455         }
 456 }
 457
 458 Bool IsDoubleClick(WScreen * scr, XEvent * event)
 459 {
 460         if ((scr->last_click_time > 0) &&
 461             (event->xbutton.time - scr->last_click_time <= wPreferences.dblclick_time)
 462             && (event->xbutton.button == scr->last_click_button)
 463             && (event->xbutton.window == scr->last_click_window)) {
 464
 465                 scr->flags.next_click_is_not_double = 1;
 466                 scr->last_click_time = 0;
 467                 scr->last_click_window = event->xbutton.window;
 468
 469                 return True;
 470         }
 471         return False;
 472 }
 473
 474 void NotifyDeadProcess(pid_t pid, unsigned char status)
 475 {
 476         if (deadProcessPtr >= MAX_DEAD_PROCESSES - 1) {
 477                 wwarning("stack overflow: too many dead processes");
 478                 return;
 479         }
 480         /* stack the process to be handled later,
 481          * as this is called from the signal handler */
 482         deadProcesses[deadProcessPtr].pid = pid;
 483         deadProcesses[deadProcessPtr].exit_status = status;
 484         deadProcessPtr++;
 485 }
 486
 487 static void handleDeadProcess(void)
 488 {
 489         DeathHandler *tmp;
 490         int i;
 491
 492         for (i = 0; i < deadProcessPtr; i++) {
 493                 wWindowDeleteSavedStatesForPID(deadProcesses[i].pid);
 494         }
 495
 496         if (!deathHandlers) {
 497                 deadProcessPtr = 0;
 498                 return;
 499         }
 500
 501         /* get the pids on the queue and call handlers */
 502         while (deadProcessPtr > 0) {
 503                 deadProcessPtr--;
 504
 505                 for (i = WMGetArrayItemCount(deathHandlers) - 1; i >= 0; i--) {
 506                         tmp = WMGetFromArray(deathHandlers, i);
 507                         if (!tmp)
 508                                 continue;
 509
 510                         if (tmp->pid == deadProcesses[deadProcessPtr].pid) {
 511                                 (*tmp->callback) (tmp->pid,
 512                                                   deadProcesses[deadProcessPtr].exit_status, tmp->client_data);
 513                                 wdelete_death_handler(tmp);
 514                         }
 515                 }
 516         }
 517 }
 518
 519 static void saveTimestamp(XEvent * event)
 520 {
 521         /*
 522          * Never save CurrentTime as LastTimestamp because CurrentTime
 523          * it's not a real timestamp (it's the 0L constant)
 524          */
 525
 526         switch (event->type) {
 527         case ButtonRelease:
 528         case ButtonPress:
 529                 w_global.timestamp.last_event = event->xbutton.time;
 530                 break;
 531         case KeyPress:
 532         case KeyRelease:
 533                 w_global.timestamp.last_event = event->xkey.time;
 534                 break;
 535         case MotionNotify:
 536                 w_global.timestamp.last_event = event->xmotion.time;
 537                 break;
 538         case PropertyNotify:
 539                 w_global.timestamp.last_event = event->xproperty.time;
 540                 break;
 541         case EnterNotify:
 542         case LeaveNotify:
 543                 w_global.timestamp.last_event = event->xcrossing.time;
 544                 break;
 545         case SelectionClear:
 546                 w_global.timestamp.last_event = event->xselectionclear.time;
 547                 break;
 548         case SelectionRequest:
 549                 w_global.timestamp.last_event = event->xselectionrequest.time;
 550                 break;
 551         case SelectionNotify:
 552                 w_global.timestamp.last_event = event->xselection.time;
 553 #ifdef USE_DOCK_XDND
 554                 wXDNDProcessSelection(event);
 555 #endif
 556                 break;
 557         }
 558 }
 559
 560 static int matchWindow(const void *item, const void *cdata)
 561 {
 562         return (((WFakeGroupLeader *) item)->origLeader == (Window) cdata);
 563 }
 564
 565 static void handleExtensions(XEvent * event)
 566 {
 567 #ifdef USE_XSHAPE
 568         if (w_global.xext.shape.supported && event->type == (w_global.xext.shape.event_base + ShapeNotify)) {
 569                 handleShapeNotify(event);
 570         }
 571 #endif
 572 #ifdef KEEP_XKB_LOCK_STATUS
 573         if (wPreferences.modelock && (event->type == w_global.xext.xkb.event_base)) {
 574                 handleXkbIndicatorStateNotify((XkbEvent *) event);
 575         }
 576 #endif                          /*KEEP_XKB_LOCK_STATUS */
 577 #ifdef USE_RANDR
 578         if (w_global.xext.randr.supported && event->type == (w_global.xext.randr.event_base + RRScreenChangeNotify)) {
 579                 /* From xrandr man page: "Clients must call back into Xlib using
 580                  * XRRUpdateConfiguration when screen configuration change notify
 581                  * events are generated */
 582                 XRRUpdateConfiguration(event);
 583                 WCHANGE_STATE(WSTATE_RESTARTING);
 584                 Shutdown(WSRestartPreparationMode);
 585                 Restart(NULL,True);
 586         }
 587 #endif
 588 }
 589
 590 static void handleMapRequest(XEvent * ev)
 591 {
 592         WWindow *wwin;
 593         WScreen *scr = NULL;
 594         Window window = ev->xmaprequest.window;
 595
 596         wwin = wWindowFor(window);
 597         if (wwin != NULL) {
 598                 if (wwin->flags.shaded) {
 599                         wUnshadeWindow(wwin);
 600                 }
 601                 /* deiconify window */
 602                 if (wwin->flags.miniaturized) {
 603                         wDeiconifyWindow(wwin);
 604                 } else if (wwin->flags.hidden) {
 605                         WApplication *wapp = wApplicationOf(wwin->main_window);
 606                         /* go to the last workspace that the user worked on the app */
 607                         if (wapp) {
 608                                 wWorkspaceChange(wwin->screen_ptr, wapp->last_workspace);
 609                         }
 610                         wUnhideApplication(wapp, False, False);
 611                 }
 612                 return;
 613         }
 614
 615         scr = wScreenForRootWindow(ev->xmaprequest.parent);
 616
 617         wwin = wManageWindow(scr, window);
 618
 619         /*
 620          * This is to let the Dock know that the application it launched
 621          * has already been mapped (eg: it has finished launching).
 622          * It is not necessary for normally docked apps, but is needed for
 623          * apps that were forcedly docked (like with dockit).
 624          */
 625         if (scr->last_dock) {
 626                 if (wwin && wwin->main_window != None && wwin->main_window != window)
 627                         wDockTrackWindowLaunch(scr->last_dock, wwin->main_window);
 628                 else
 629                         wDockTrackWindowLaunch(scr->last_dock, window);
 630         }
 631
 632         if (wwin) {
 633                 wClientSetState(wwin, NormalState, None);
 634                 if (wwin->flags.maximized) {
 635                         wMaximizeWindow(wwin, wwin->flags.maximized,
 636                                         wGetHeadForWindow(wwin));
 637                 }
 638                 if (wwin->flags.shaded) {
 639                         wwin->flags.shaded = 0;
 640                         wwin->flags.skip_next_animation = 1;
 641                         wShadeWindow(wwin);
 642                 }
 643                 if (wwin->flags.miniaturized) {
 644                         wwin->flags.miniaturized = 0;
 645                         wwin->flags.skip_next_animation = 1;
 646                         wIconifyWindow(wwin);
 647                 }
 648                 if (wwin->flags.fullscreen) {
 649                         wwin->flags.fullscreen = 0;
 650                         wFullscreenWindow(wwin);
 651                 }
 652                 if (wwin->flags.hidden) {
 653                         WApplication *wapp = wApplicationOf(wwin->main_window);
 654
 655                         wwin->flags.hidden = 0;
 656                         wwin->flags.skip_next_animation = 1;
 657                         if (wapp) {
 658                                 wHideApplication(wapp);
 659                         }
 660                 }
 661         }
 662 }
 663
 664 static void handleDestroyNotify(XEvent * event)
 665 {
 666         WWindow *wwin;
 667         WApplication *app;
 668         Window window = event->xdestroywindow.window;
 669         WScreen *scr = wScreenForRootWindow(event->xdestroywindow.event);
 670         int widx;
 671
 672         wwin = wWindowFor(window);
 673         if (wwin) {
 674                 wUnmanageWindow(wwin, False, True);
 675         }
 676
 677         if (scr != NULL) {
 678                 while ((widx = WMFindInArray(scr->fakeGroupLeaders, matchWindow, (void *)window)) != WANotFound) {
 679                         WFakeGroupLeader *fPtr;
 680
 681                         fPtr = WMGetFromArray(scr->fakeGroupLeaders, widx);
 682                         if (fPtr->retainCount > 0) {
 683                                 fPtr->retainCount--;
 684                                 if (fPtr->retainCount == 0 && fPtr->leader != None) {
 685                                         XDestroyWindow(dpy, fPtr->leader);
 686                                         fPtr->leader = None;
 687                                         XFlush(dpy);
 688                                 }
 689                         }
 690                         fPtr->origLeader = None;
 691                 }
 692         }
 693
 694         app = wApplicationOf(window);
 695         if (app) {
 696                 if (window == app->main_window) {
 697                         app->refcount = 0;
 698                         wwin = app->main_window_desc->screen_ptr->focused_window;
 699                         while (wwin) {
 700                                 if (wwin->main_window == window) {
 701                                         wwin->main_window = None;
 702                                 }
 703                                 wwin = wwin->prev;
 704                         }
 705                 }
 706                 wApplicationDestroy(app);
 707         }
 708 }
 709
 710 static void handleExpose(XEvent * event)
 711 {
 712         WObjDescriptor *desc;
 713         XEvent ev;
 714
 715         while (XCheckTypedWindowEvent(dpy, event->xexpose.window, Expose, &ev)) ;
 716
 717         if (XFindContext(dpy, event->xexpose.window, w_global.context.client_win, (XPointer *) & desc) == XCNOENT) {
 718                 return;
 719         }
 720
 721         if (desc->handle_expose) {
 722                 (*desc->handle_expose) (desc, event);
 723         }
 724 }
 725
 726 static void executeWheelAction(WScreen *scr, XEvent *event, int action)
 727 {
 728         WWindow *wwin;
 729         Bool next_direction;
 730
 731         if (event->xbutton.button == Button5 || event->xbutton.button == Button6)
 732                 next_direction = False;
 733         else
 734                 next_direction = True;
 735
 736         switch (action) {
 737         case WA_SWITCH_WORKSPACES:
 738                 if (next_direction)
 739                         wWorkspaceRelativeChange(scr, 1);
 740                 else
 741                         wWorkspaceRelativeChange(scr, -1);
 742                 break;
 743
 744         case WA_SWITCH_WINDOWS:
 745                 wwin = scr->focused_window;
 746                 if (next_direction)
 747                         wWindowFocusNext(wwin, True);
 748                 else
 749                         wWindowFocusPrev(wwin, True);
 750                 break;
 751         }
 752 }
 753
 754 static void executeButtonAction(WScreen *scr, XEvent *event, int action)
 755 {
 756         WWindow *wwin;
 757
 758         switch (action) {
 759         case WA_SELECT_WINDOWS:
 760                 wUnselectWindows(scr);
 761                 wSelectWindows(scr, event);
 762                 break;
 763         case WA_OPEN_APPMENU:
 764                 OpenRootMenu(scr, event->xbutton.x_root, event->xbutton.y_root, False);
 765                 /* ugly hack */
 766                 if (scr->root_menu) {
 767                         if (scr->root_menu->brother->flags.mapped)
 768                                 event->xbutton.window = scr->root_menu->brother->frame->core->window;
 769                         else
 770                                 event->xbutton.window = scr->root_menu->frame->core->window;
 771                 }
 772                 break;
 773         case WA_OPEN_WINLISTMENU:
 774                 OpenSwitchMenu(scr, event->xbutton.x_root, event->xbutton.y_root, False);
 775                 if (scr->switch_menu) {
 776                         if (scr->switch_menu->brother->flags.mapped)
 777                                 event->xbutton.window = scr->switch_menu->brother->frame->core->window;
 778                         else
 779                                 event->xbutton.window = scr->switch_menu->frame->core->window;
 780                 }
 781                 break;
 782         case WA_MOVE_PREVWORKSPACE:
 783                 wWorkspaceRelativeChange(scr, -1);
 784                 break;
 785         case WA_MOVE_NEXTWORKSPACE:
 786                 wWorkspaceRelativeChange(scr, 1);
 787                 break;
 788         case WA_MOVE_PREVWINDOW:
 789                 wwin = scr->focused_window;
 790                 wWindowFocusPrev(wwin, True);
 791                 break;
 792         case WA_MOVE_NEXTWINDOW:
 793                 wwin = scr->focused_window;
 794                 wWindowFocusNext(wwin, True);
 795                 break;
 796         }
 797 }
 798
 799 /* bindable */
 800 static void handleButtonPress(XEvent * event)
 801 {
 802         WObjDescriptor *desc;
 803         WScreen *scr;
 804
 805         scr = wScreenForRootWindow(event->xbutton.root);
 806
 807 #ifdef BALLOON_TEXT
 808         wBalloonHide(scr);
 809 #endif
 810
 811         if (!wPreferences.disable_root_mouse && event->xbutton.window == scr->root_win) {
 812                 if (event->xbutton.button == Button1 && wPreferences.mouse_button1 != WA_NONE) {
 813                         executeButtonAction(scr, event, wPreferences.mouse_button1);
 814                 } else if (event->xbutton.button == Button2 && wPreferences.mouse_button2 != WA_NONE) {
 815                         executeButtonAction(scr, event, wPreferences.mouse_button2);
 816                 } else if (event->xbutton.button == Button3 && wPreferences.mouse_button3 != WA_NONE) {
 817                         executeButtonAction(scr, event, wPreferences.mouse_button3);
 818                 } else if (event->xbutton.button == Button8 && wPreferences.mouse_button8 != WA_NONE) {
 819                         executeButtonAction(scr, event, wPreferences.mouse_button8);
 820                 }else if (event->xbutton.button == Button9 && wPreferences.mouse_button9 != WA_NONE) {
 821                         executeButtonAction(scr, event, wPreferences.mouse_button9);
 822                 } else if (event->xbutton.button == Button4 && wPreferences.mouse_wheel_scroll != WA_NONE) {
 823                         executeWheelAction(scr, event, wPreferences.mouse_wheel_scroll);
 824                 } else if (event->xbutton.button == Button5 && wPreferences.mouse_wheel_scroll != WA_NONE) {
 825                         executeWheelAction(scr, event, wPreferences.mouse_wheel_scroll);
 826                 } else if (event->xbutton.button == Button6 && wPreferences.mouse_wheel_tilt != WA_NONE) {
 827                         executeWheelAction(scr, event, wPreferences.mouse_wheel_tilt);
 828                 } else if (event->xbutton.button == Button7 && wPreferences.mouse_wheel_tilt != WA_NONE) {
 829                         executeWheelAction(scr, event, wPreferences.mouse_wheel_tilt);
 830                 }
 831         }
 832
 833         desc = NULL;
 834         if (XFindContext(dpy, event->xbutton.subwindow, w_global.context.client_win, (XPointer *) & desc) == XCNOENT) {
 835                 if (XFindContext(dpy, event->xbutton.window, w_global.context.client_win, (XPointer *) & desc) == XCNOENT) {
 836                         return;
 837                 }
 838         }
 839
 840         if (desc->parent_type == WCLASS_WINDOW) {
 841                 XSync(dpy, 0);
 842
 843                 if (event->xbutton.state & ( MOD_MASK | ControlMask )) {
 844                         XAllowEvents(dpy, AsyncPointer, CurrentTime);
 845                 } else {
 846                         /*      if (wPreferences.focus_mode == WKF_CLICK) { */
 847                         if (wPreferences.ignore_focus_click) {
 848                                 XAllowEvents(dpy, AsyncPointer, CurrentTime);
 849                         }
 850                         XAllowEvents(dpy, ReplayPointer, CurrentTime);
 851                         /*      } */
 852                 }
 853                 XSync(dpy, 0);
 854         } else if (desc->parent_type == WCLASS_APPICON
 855                    || desc->parent_type == WCLASS_MINIWINDOW || desc->parent_type == WCLASS_DOCK_ICON) {
 856                 if (event->xbutton.state & MOD_MASK) {
 857                         XSync(dpy, 0);
 858                         XAllowEvents(dpy, AsyncPointer, CurrentTime);
 859                         XSync(dpy, 0);
 860                 }
 861         }
 862
 863         if (desc->handle_mousedown != NULL) {
 864                 (*desc->handle_mousedown) (desc, event);
 865         }
 866
 867         /* save double-click information */
 868         if (scr->flags.next_click_is_not_double) {
 869                 scr->flags.next_click_is_not_double = 0;
 870         } else {
 871                 scr->last_click_time = event->xbutton.time;
 872                 scr->last_click_button = event->xbutton.button;
 873                 scr->last_click_window = event->xbutton.window;
 874         }
 875 }
 876
 877 static void handleMapNotify(XEvent * event)
 878 {
 879         WWindow *wwin;
 880
 881         wwin = wWindowFor(event->xmap.event);
 882         if (wwin && wwin->client_win == event->xmap.event) {
 883                 if (wwin->flags.miniaturized) {
 884                         wDeiconifyWindow(wwin);
 885                 } else {
 886                         XGrabServer(dpy);
 887                         wWindowMap(wwin);
 888                         wClientSetState(wwin, NormalState, None);
 889                         XUngrabServer(dpy);
 890                 }
 891         }
 892 }
 893
 894 static void handleUnmapNotify(XEvent * event)
 895 {
 896         WWindow *wwin;
 897         XEvent ev;
 898         Bool withdraw = False;
 899
 900         /* only process windows with StructureNotify selected
 901          * (ignore SubstructureNotify) */
 902         wwin = wWindowFor(event->xunmap.window);
 903         if (!wwin)
 904                 return;
 905
 906         /* whether the event is a Withdrawal request */
 907         if (event->xunmap.event == wwin->screen_ptr->root_win && event->xunmap.send_event)
 908                 withdraw = True;
 909
 910         if (wwin->client_win != event->xunmap.event && !withdraw)
 911                 return;
 912
 913         if (!wwin->flags.mapped && !withdraw
 914             && wwin->frame->workspace == wwin->screen_ptr->current_workspace
 915             && !wwin->flags.miniaturized && !wwin->flags.hidden)
 916                 return;
 917
 918         XGrabServer(dpy);
 919         XUnmapWindow(dpy, wwin->frame->core->window);
 920         wwin->flags.mapped = 0;
 921         XSync(dpy, 0);
 922         /* check if the window was destroyed */
 923         if (XCheckTypedWindowEvent(dpy, wwin->client_win, DestroyNotify, &ev)) {
 924                 DispatchEvent(&ev);
 925         } else {
 926                 Bool reparented = False;
 927
 928                 if (XCheckTypedWindowEvent(dpy, wwin->client_win, ReparentNotify, &ev))
 929                         reparented = True;
 930
 931                 /* withdraw window */
 932                 wwin->flags.mapped = 0;
 933                 if (!reparented)
 934                         wClientSetState(wwin, WithdrawnState, None);
 935
 936                 /* if the window was reparented, do not reparent it back to the
 937                  * root window */
 938                 wUnmanageWindow(wwin, !reparented, False);
 939         }
 940         XUngrabServer(dpy);
 941 }
 942
 943 static void handleConfigureRequest(XEvent * event)
 944 {
 945         WWindow *wwin;
 946
 947         wwin = wWindowFor(event->xconfigurerequest.window);
 948         if (wwin == NULL) {
 949                 /*
 950                  * Configure request for unmapped window
 951                  */
 952                 wClientConfigure(NULL, &(event->xconfigurerequest));
 953         } else {
 954                 wClientConfigure(wwin, &(event->xconfigurerequest));
 955         }
 956 }
 957
 958 static void handlePropertyNotify(XEvent * event)
 959 {
 960         WWindow *wwin;
 961         WApplication *wapp;
 962         Window jr;
 963         int ji;
 964         unsigned int ju;
 965
 966         wwin = wWindowFor(event->xproperty.window);
 967         if (wwin) {
 968                 if (!XGetGeometry(dpy, wwin->client_win, &jr, &ji, &ji, &ju, &ju, &ju, &ju)) {
 969                         return;
 970                 }
 971                 wClientCheckProperty(wwin, &event->xproperty);
 972         }
 973         wapp = wApplicationOf(event->xproperty.window);
 974         if (wapp) {
 975                 wClientCheckProperty(wapp->main_window_desc, &event->xproperty);
 976         }
 977 }
 978
 979 static void handleClientMessage(XEvent * event)
 980 {
 981         WWindow *wwin;
 982         WObjDescriptor *desc;
 983
 984         /* handle transition from Normal to Iconic state */
 985         if (event->xclient.message_type == w_global.atom.wm.change_state
 986             && event->xclient.format == 32 && event->xclient.data.l[0] == IconicState) {
 987
 988                 wwin = wWindowFor(event->xclient.window);
 989                 if (!wwin)
 990                         return;
 991                 if (!wwin->flags.miniaturized)
 992                         wIconifyWindow(wwin);
 993         } else if (event->xclient.message_type == w_global.atom.wm.colormap_notify && event->xclient.format == 32) {
 994                 WScreen *scr = wScreenForRootWindow(event->xclient.window);
 995
 996                 if (!scr)
 997                         return;
 998
 999                 if (event->xclient.data.l[1] == 1) {    /* starting */
1000                         wColormapAllowClientInstallation(scr, True);
1001                 } else {        /* stopping */
1002                         wColormapAllowClientInstallation(scr, False);
1003                 }
1004         } else if (event->xclient.message_type == w_global.atom.wmaker.command) {
1005
1006                 char *command;
1007                 size_t len;
1008
1009                 len = sizeof(event->xclient.data.b) + 1;
1010                 command = wmalloc(len);
1011                 strncpy(command, event->xclient.data.b, sizeof(event->xclient.data.b));
1012
1013                 if (strncmp(command, "Reconfigure", sizeof("Reconfigure")) == 0) {
1014                         wwarning(_("Got Reconfigure command"));
1015                         wDefaultsCheckDomains(NULL);
1016                 } else {
1017                         wwarning(_("Got unknown command %s"), command);
1018                 }
1019
1020                 wfree(command);
1021
1022         } else if (event->xclient.message_type == w_global.atom.wmaker.wm_function) {
1023                 WApplication *wapp;
1024                 int done = 0;
1025                 wapp = wApplicationOf(event->xclient.window);
1026                 if (wapp) {
1027                         switch (event->xclient.data.l[0]) {
1028                         case WMFHideOtherApplications:
1029                                 wHideOtherApplications(wapp->main_window_desc);
1030                                 done = 1;
1031                                 break;
1032
1033                         case WMFHideApplication:
1034                                 wHideApplication(wapp);
1035                                 done = 1;
1036                                 break;
1037                         }
1038                 }
1039                 if (!done) {
1040                         wwin = wWindowFor(event->xclient.window);
1041                         if (wwin) {
1042                                 switch (event->xclient.data.l[0]) {
1043                                 case WMFHideOtherApplications:
1044                                         wHideOtherApplications(wwin);
1045                                         break;
1046
1047                                 case WMFHideApplication:
1048                                         wHideApplication(wApplicationOf(wwin->main_window));
1049                                         break;
1050                                 }
1051                         }
1052                 }
1053         } else if (event->xclient.message_type == w_global.atom.gnustep.wm_attr) {
1054                 wwin = wWindowFor(event->xclient.window);
1055                 if (!wwin)
1056                         return;
1057                 switch (event->xclient.data.l[0]) {
1058                 case GSWindowLevelAttr:
1059                         {
1060                                 int level = (int)event->xclient.data.l[1];
1061
1062                                 if (WINDOW_LEVEL(wwin) != level) {
1063                                         ChangeStackingLevel(wwin->frame->core, level);
1064                                 }
1065                         }
1066                         break;
1067                 }
1068         } else if (event->xclient.message_type == w_global.atom.gnustep.titlebar_state) {
1069                 wwin = wWindowFor(event->xclient.window);
1070                 if (!wwin)
1071                         return;
1072                 switch (event->xclient.data.l[0]) {
1073                 case WMTitleBarNormal:
1074                         wFrameWindowChangeState(wwin->frame, WS_UNFOCUSED);
1075                         break;
1076                 case WMTitleBarMain:
1077                         wFrameWindowChangeState(wwin->frame, WS_PFOCUSED);
1078                         break;
1079                 case WMTitleBarKey:
1080                         wFrameWindowChangeState(wwin->frame, WS_FOCUSED);
1081                         break;
1082                 }
1083         } else if (event->xclient.message_type == w_global.atom.wm.ignore_focus_events) {
1084                 WScreen *scr = wScreenForRootWindow(event->xclient.window);
1085                 if (!scr)
1086                         return;
1087                 scr->flags.ignore_focus_events = event->xclient.data.l[0] ? 1 : 0;
1088         } else if (wNETWMProcessClientMessage(&event->xclient)) {
1089                 /* do nothing */
1090 #ifdef USE_DOCK_XDND
1091         } else if (wXDNDProcessClientMessage(&event->xclient)) {
1092                 /* do nothing */
1093 #endif  /* USE_DOCK_XDND */
1094         } else {
1095                 /*
1096                  * Non-standard thing, but needed by OffiX DND.
1097                  * For when the icon frame gets a ClientMessage
1098                  * that should have gone to the icon_window.
1099                  */
1100                 if (XFindContext(dpy, event->xbutton.window, w_global.context.client_win, (XPointer *) & desc) != XCNOENT) {
1101                         struct WIcon *icon = NULL;
1102
1103                         if (desc->parent_type == WCLASS_MINIWINDOW) {
1104                                 icon = (WIcon *) desc->parent;
1105                         } else if (desc->parent_type == WCLASS_DOCK_ICON || desc->parent_type == WCLASS_APPICON) {
1106                                 icon = ((WAppIcon *) desc->parent)->icon;
1107                         }
1108                         if (icon && (wwin = icon->owner)) {
1109                                 if (wwin->client_win != event->xclient.window) {
1110                                         event->xclient.window = wwin->client_win;
1111                                         XSendEvent(dpy, wwin->client_win, False, NoEventMask, event);
1112                                 }
1113                         }
1114                 }
1115         }
1116 }
1117
1118 static void raiseWindow(WScreen * scr)
1119 {
1120         WWindow *wwin;
1121
1122         scr->autoRaiseTimer = NULL;
1123
1124         wwin = wWindowFor(scr->autoRaiseWindow);
1125         if (!wwin)
1126                 return;
1127
1128         if (!wwin->flags.destroyed && wwin->flags.focused) {
1129                 wRaiseFrame(wwin->frame->core);
1130                 /* this is needed or a race condition will occur */
1131                 XSync(dpy, False);
1132         }
1133 }
1134
1135 static void handleEnterNotify(XEvent * event)
1136 {
1137         WWindow *wwin;
1138         WObjDescriptor *desc = NULL;
1139         XEvent ev;
1140         WScreen *scr = wScreenForRootWindow(event->xcrossing.root);
1141
1142         if (XCheckTypedWindowEvent(dpy, event->xcrossing.window, LeaveNotify, &ev)) {
1143                 /* already left the window... */
1144                 saveTimestamp(&ev);
1145                 if (ev.xcrossing.mode == event->xcrossing.mode && ev.xcrossing.detail == event->xcrossing.detail) {
1146                         return;
1147                 }
1148         }
1149
1150         if (XFindContext(dpy, event->xcrossing.window, w_global.context.client_win, (XPointer *) & desc) != XCNOENT) {
1151                 if (desc->handle_enternotify)
1152                         (*desc->handle_enternotify) (desc, event);
1153         }
1154
1155         /* enter to window */
1156         wwin = wWindowFor(event->xcrossing.window);
1157         if (!wwin) {
1158                 if (wPreferences.colormap_mode == WCM_POINTER) {
1159                         wColormapInstallForWindow(scr, NULL);
1160                 }
1161                 if (scr->autoRaiseTimer && event->xcrossing.root == event->xcrossing.window) {
1162                         WMDeleteTimerHandler(scr->autoRaiseTimer);
1163                         scr->autoRaiseTimer = NULL;
1164                 }
1165         } else {
1166                 /* set auto raise timer even if in focus-follows-mouse mode
1167                  * and the event is for the frame window, even if the window
1168                  * has focus already.  useful if you move the pointer from a focused
1169                  * window to the root window and back pretty fast
1170                  *
1171                  * set focus if in focus-follows-mouse mode and the event
1172                  * is for the frame window and window doesn't have focus yet */
1173                 if (wPreferences.focus_mode == WKF_SLOPPY
1174                     && wwin->frame->core->window == event->xcrossing.window && !scr->flags.doing_alt_tab) {
1175
1176                         if (!wwin->flags.focused && !WFLAGP(wwin, no_focusable))
1177                                 wSetFocusTo(scr, wwin);
1178
1179                         if (scr->autoRaiseTimer)
1180                                 WMDeleteTimerHandler(scr->autoRaiseTimer);
1181                         scr->autoRaiseTimer = NULL;
1182
1183                         if (wPreferences.raise_delay && !WFLAGP(wwin, no_focusable)) {
1184                                 scr->autoRaiseWindow = wwin->frame->core->window;
1185                                 scr->autoRaiseTimer
1186                                     = WMAddTimerHandler(wPreferences.raise_delay, (WMCallback *) raiseWindow, scr);
1187                         }
1188                 }
1189                 /* Install colormap for window, if the colormap installation mode
1190                  * is colormap_follows_mouse */
1191                 if (wPreferences.colormap_mode == WCM_POINTER) {
1192                         if (wwin->client_win == event->xcrossing.window)
1193                                 wColormapInstallForWindow(scr, wwin);
1194                         else
1195                                 wColormapInstallForWindow(scr, NULL);
1196                 }
1197         }
1198
1199         if (event->xcrossing.window == event->xcrossing.root
1200             && event->xcrossing.detail == NotifyNormal
1201             && event->xcrossing.detail != NotifyInferior && wPreferences.focus_mode != WKF_CLICK) {
1202
1203                 wSetFocusTo(scr, scr->focused_window);
1204         }
1205 #ifdef BALLOON_TEXT
1206         wBalloonEnteredObject(scr, desc);
1207 #endif
1208 }
1209
1210 static void handleLeaveNotify(XEvent * event)
1211 {
1212         WObjDescriptor *desc = NULL;
1213
1214         if (XFindContext(dpy, event->xcrossing.window, w_global.context.client_win, (XPointer *) & desc) != XCNOENT) {
1215                 if (desc->handle_leavenotify)
1216                         (*desc->handle_leavenotify) (desc, event);
1217         }
1218 }
1219
1220 #ifdef USE_XSHAPE
1221 static void handleShapeNotify(XEvent * event)
1222 {
1223         XShapeEvent *shev = (XShapeEvent *) event;
1224         WWindow *wwin;
1225         union {
1226                 XEvent xevent;
1227                 XShapeEvent xshape;
1228         } ev;
1229
1230         while (XCheckTypedWindowEvent(dpy, shev->window, event->type, &ev.xevent)) {
1231                 if (ev.xshape.kind == ShapeBounding) {
1232                         if (ev.xshape.shaped == shev->shaped) {
1233                                 *shev = ev.xshape;
1234                         } else {
1235                                 XPutBackEvent(dpy, &ev.xevent);
1236                                 break;
1237                         }
1238                 }
1239         }
1240
1241         wwin = wWindowFor(shev->window);
1242         if (!wwin || shev->kind != ShapeBounding)
1243                 return;
1244
1245         if (!shev->shaped && wwin->flags.shaped) {
1246
1247                 wwin->flags.shaped = 0;
1248                 wWindowClearShape(wwin);
1249
1250         } else if (shev->shaped) {
1251
1252                 wwin->flags.shaped = 1;
1253                 wWindowSetShape(wwin);
1254         }
1255 }
1256 #endif                          /* USE_XSHAPE */
1257
1258 #ifdef KEEP_XKB_LOCK_STATUS
1259 /* please help ]d if you know what to do */
1260 static void handleXkbIndicatorStateNotify(XkbEvent *event)
1261 {
1262         WWindow *wwin;
1263         WScreen *scr;
1264         XkbStateRec staterec;
1265         int i;
1266
1267         for (i = 0; i < w_global.screen_count; i++) {
1268                 scr = wScreenWithNumber(i);
1269                 wwin = scr->focused_window;
1270                 if (wwin && wwin->flags.focused) {
1271                         XkbGetState(dpy, XkbUseCoreKbd, &staterec);
1272                         if (wwin->frame->languagemode != staterec.group) {
1273                                 wwin->frame->last_languagemode = wwin->frame->languagemode;
1274                                 wwin->frame->languagemode = staterec.group;
1275                         }
1276 #ifdef XKB_BUTTON_HINT
1277                         if (wwin->frame->titlebar) {
1278                                 wFrameWindowPaint(wwin->frame);
1279                         }
1280 #endif
1281                 }
1282         }
1283 }
1284 #endif                          /*KEEP_XKB_LOCK_STATUS */
1285
1286 static void handleColormapNotify(XEvent * event)
1287 {
1288         WWindow *wwin;
1289         WScreen *scr;
1290         Bool reinstall = False;
1291
1292         wwin = wWindowFor(event->xcolormap.window);
1293         if (!wwin)
1294                 return;
1295
1296         scr = wwin->screen_ptr;
1297
1298         do {
1299                 if (wwin) {
1300                         if (event->xcolormap.new) {
1301                                 XWindowAttributes attr;
1302
1303                                 XGetWindowAttributes(dpy, wwin->client_win, &attr);
1304
1305                                 if (wwin == scr->cmap_window && wwin->cmap_window_no == 0)
1306                                         scr->current_colormap = attr.colormap;
1307
1308                                 reinstall = True;
1309                         } else if (event->xcolormap.state == ColormapUninstalled &&
1310                                    scr->current_colormap == event->xcolormap.colormap) {
1311
1312                                 /* some bastard app (like XV) removed our colormap */
1313                                 /*
1314                                  * can't enforce or things like xscreensaver won't work
1315                                  * reinstall = True;
1316                                  */
1317                         } else if (event->xcolormap.state == ColormapInstalled &&
1318                                    scr->current_colormap == event->xcolormap.colormap) {
1319
1320                                 /* someone has put our colormap back */
1321                                 reinstall = False;
1322                         }
1323                 }
1324         } while (XCheckTypedEvent(dpy, ColormapNotify, event)
1325                  && ((wwin = wWindowFor(event->xcolormap.window)) || 1));
1326
1327         if (reinstall && scr->current_colormap != None) {
1328                 if (!scr->flags.colormap_stuff_blocked)
1329                         XInstallColormap(dpy, scr->current_colormap);
1330         }
1331 }
1332
1333 static void handleFocusIn(XEvent * event)
1334 {
1335         WWindow *wwin;
1336
1337         /*
1338          * For applications that like stealing the focus.
1339          */
1340         while (XCheckTypedEvent(dpy, FocusIn, event)) ;
1341         saveTimestamp(event);
1342         if (event->xfocus.mode == NotifyUngrab
1343             || event->xfocus.mode == NotifyGrab || event->xfocus.detail > NotifyNonlinearVirtual) {
1344                 return;
1345         }
1346
1347         wwin = wWindowFor(event->xfocus.window);
1348         if (wwin && !wwin->flags.focused) {
1349                 if (wwin->flags.mapped)
1350                         wSetFocusTo(wwin->screen_ptr, wwin);
1351                 else
1352                         wSetFocusTo(wwin->screen_ptr, NULL);
1353         } else if (!wwin) {
1354                 WScreen *scr = wScreenForWindow(event->xfocus.window);
1355                 if (scr)
1356                         wSetFocusTo(scr, NULL);
1357         }
1358 }
1359
1360 static WWindow *windowUnderPointer(WScreen * scr)
1361 {
1362         unsigned int mask;
1363         int foo;
1364         Window bar, win;
1365
1366         if (XQueryPointer(dpy, scr->root_win, &bar, &win, &foo, &foo, &foo, &foo, &mask))
1367                 return wWindowFor(win);
1368         return NULL;
1369 }
1370
1371 static int CheckFullScreenWindowFocused(WScreen * scr)
1372 {
1373         if (scr->focused_window && scr->focused_window->flags.fullscreen)
1374                 return 1;
1375         else
1376                 return 0;
1377 }
1378
1379 static void handleKeyPress(XEvent * event)
1380 {
1381         WScreen *scr = wScreenForRootWindow(event->xkey.root);
1382         WWindow *wwin = scr->focused_window;
1383         short i, widx;
1384         int modifiers;
1385         int command = -1;
1386 #ifdef KEEP_XKB_LOCK_STATUS
1387         XkbStateRec staterec;
1388 #endif                          /*KEEP_XKB_LOCK_STATUS */
1389
1390         /* ignore CapsLock */
1391         modifiers = event->xkey.state & w_global.shortcut.modifiers_mask;
1392
1393         for (i = 0; i < WKBD_LAST; i++) {
1394                 if (wKeyBindings[i].keycode == 0)
1395                         continue;
1396
1397                 if (wKeyBindings[i].keycode == event->xkey.keycode && ( /*wKeyBindings[i].modifier==0
1398                                                                            || */ wKeyBindings[i].modifier ==
1399                                                                               modifiers)) {
1400                         command = i;
1401                         break;
1402                 }
1403         }
1404
1405         if (command < 0) {
1406
1407                 if (!wRootMenuPerformShortcut(event)) {
1408                         static int dontLoop = 0;
1409
1410                         if (dontLoop > 10) {
1411                                 wwarning("problem with key event processing code");
1412                                 return;
1413                         }
1414                         dontLoop++;
1415                         /* if the focused window is an internal window, try redispatching
1416                          * the event to the managed window, as it can be a WINGs window */
1417                         if (wwin && wwin->flags.internal_window && wwin->client_leader != None) {
1418                                 /* client_leader contains the WINGs toplevel */
1419                                 event->xany.window = wwin->client_leader;
1420                                 WMHandleEvent(event);
1421                         }
1422                         dontLoop--;
1423                 }
1424                 return;
1425         }
1426 #define ISMAPPED(w) ((w) && !(w)->flags.miniaturized && ((w)->flags.mapped || (w)->flags.shaded))
1427 #define ISFOCUSED(w) ((w) && (w)->flags.focused)
1428
1429         switch (command) {
1430
1431         case WKBD_ROOTMENU:
1432                 /*OpenRootMenu(scr, event->xkey.x_root, event->xkey.y_root, True); */
1433                 if (!CheckFullScreenWindowFocused(scr)) {
1434                         WMRect rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
1435                         OpenRootMenu(scr, rect.pos.x + rect.size.width / 2, rect.pos.y + rect.size.height / 2,
1436                                      True);
1437                 }
1438                 break;
1439         case WKBD_WINDOWLIST:
1440                 if (!CheckFullScreenWindowFocused(scr)) {
1441                         WMRect rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
1442                         OpenSwitchMenu(scr, rect.pos.x + rect.size.width / 2, rect.pos.y + rect.size.height / 2,
1443                                        True);
1444                 }
1445                 break;
1446
1447         case WKBD_WINDOWMENU:
1448                 if (ISMAPPED(wwin) && ISFOCUSED(wwin))
1449                         OpenWindowMenu(wwin, wwin->frame_x, wwin->frame_y + wwin->frame->top_width, True);
1450                 break;
1451         case WKBD_MINIMIZEALL:
1452                 CloseWindowMenu(scr);
1453                 wHideAll(scr);
1454                 break;
1455         case WKBD_MINIATURIZE:
1456                 if (ISMAPPED(wwin) && ISFOCUSED(wwin)
1457                     && !WFLAGP(wwin, no_miniaturizable)) {
1458                         CloseWindowMenu(scr);
1459
1460                         if (wwin->protocols.MINIATURIZE_WINDOW)
1461                                 wClientSendProtocol(wwin, w_global.atom.gnustep.wm_miniaturize_window, event->xbutton.time);
1462                         else {
1463                                 wIconifyWindow(wwin);
1464                         }
1465                 }
1466                 break;
1467         case WKBD_HIDE:
1468                 if (ISMAPPED(wwin) && ISFOCUSED(wwin)) {
1469                         WApplication *wapp = wApplicationOf(wwin->main_window);
1470                         CloseWindowMenu(scr);
1471
1472                         if (wapp && !WFLAGP(wapp->main_window_desc, no_appicon)) {
1473                                 wHideApplication(wapp);
1474                         }
1475                 }
1476                 break;
1477         case WKBD_HIDE_OTHERS:
1478                 if (ISMAPPED(wwin) && ISFOCUSED(wwin)) {
1479                         CloseWindowMenu(scr);
1480
1481                         wHideOtherApplications(wwin);
1482                 }
1483                 break;
1484         case WKBD_MAXIMIZE:
1485                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1486                         CloseWindowMenu(scr);
1487
1488                         handleMaximize(wwin, MAX_VERTICAL | MAX_HORIZONTAL | MAX_KEYBOARD);
1489                 }
1490                 break;
1491         case WKBD_VMAXIMIZE:
1492                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1493                         CloseWindowMenu(scr);
1494
1495                         handleMaximize(wwin, MAX_VERTICAL | MAX_KEYBOARD);
1496                 }
1497                 break;
1498         case WKBD_HMAXIMIZE:
1499                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1500                         CloseWindowMenu(scr);
1501
1502                         handleMaximize(wwin, MAX_HORIZONTAL | MAX_KEYBOARD);
1503                         movePionterToWindowCenter(wwin);
1504                 }
1505                 break;
1506         case WKBD_LHMAXIMIZE:
1507                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1508                         CloseWindowMenu(scr);
1509
1510                         handleMaximize(wwin, MAX_VERTICAL | MAX_LEFTHALF | MAX_KEYBOARD);
1511                         movePionterToWindowCenter(wwin);
1512                 }
1513                 break;
1514         case WKBD_RHMAXIMIZE:
1515                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1516                         CloseWindowMenu(scr);
1517
1518                         handleMaximize(wwin, MAX_VERTICAL | MAX_RIGHTHALF | MAX_KEYBOARD);
1519                         movePionterToWindowCenter(wwin);
1520                 }
1521                 break;
1522         case WKBD_THMAXIMIZE:
1523                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1524                         CloseWindowMenu(scr);
1525
1526                         handleMaximize(wwin, MAX_HORIZONTAL | MAX_TOPHALF | MAX_KEYBOARD);
1527                         movePionterToWindowCenter(wwin);
1528                 }
1529                 break;
1530         case WKBD_BHMAXIMIZE:
1531                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1532                         CloseWindowMenu(scr);
1533
1534                         handleMaximize(wwin, MAX_HORIZONTAL | MAX_BOTTOMHALF | MAX_KEYBOARD);
1535                         movePionterToWindowCenter(wwin);
1536                 }
1537                 break;
1538         case WKBD_LTCMAXIMIZE:
1539                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1540                         CloseWindowMenu(scr);
1541
1542                         handleMaximize(wwin, MAX_LEFTHALF | MAX_TOPHALF | MAX_KEYBOARD);
1543                         movePionterToWindowCenter(wwin);
1544                 }
1545                 break;
1546         case WKBD_RTCMAXIMIZE:
1547                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1548                         CloseWindowMenu(scr);
1549
1550                         handleMaximize(wwin, MAX_RIGHTHALF | MAX_TOPHALF | MAX_KEYBOARD);
1551                         movePionterToWindowCenter(wwin);
1552                 }
1553                 break;
1554         case WKBD_LBCMAXIMIZE:
1555                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1556                         CloseWindowMenu(scr);
1557
1558                         handleMaximize(wwin, MAX_LEFTHALF | MAX_BOTTOMHALF | MAX_KEYBOARD);
1559                         movePionterToWindowCenter(wwin);
1560                 }
1561                  break;
1562         case WKBD_RBCMAXIMIZE:
1563                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1564                         CloseWindowMenu(scr);
1565
1566                         handleMaximize(wwin, MAX_RIGHTHALF | MAX_BOTTOMHALF | MAX_KEYBOARD);
1567                         movePionterToWindowCenter(wwin);
1568                 }
1569                 break;
1570         case WKBD_MAXIMUS:
1571                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && IS_RESIZABLE(wwin)) {
1572                         CloseWindowMenu(scr);
1573
1574                         handleMaximize(wwin, MAX_MAXIMUS | MAX_KEYBOARD);
1575                 }
1576                 break;
1577         case WKBD_KEEP_ON_TOP:
1578                 if (ISMAPPED(wwin) && ISFOCUSED(wwin)) {
1579                         CloseWindowMenu(scr);
1580
1581                         if (wwin->frame->core->stacking->window_level != WMFloatingLevel)
1582                                 ChangeStackingLevel(wwin->frame->core, WMFloatingLevel);
1583                         else
1584                                 ChangeStackingLevel(wwin->frame->core, WMNormalLevel);
1585                 }
1586                 break;
1587
1588         case WKBD_KEEP_AT_BOTTOM:
1589                 if (ISMAPPED(wwin) && ISFOCUSED(wwin)) {
1590                         CloseWindowMenu(scr);
1591
1592                         if (wwin->frame->core->stacking->window_level != WMSunkenLevel)
1593                                 ChangeStackingLevel(wwin->frame->core, WMSunkenLevel);
1594                         else
1595                                 ChangeStackingLevel(wwin->frame->core, WMNormalLevel);
1596                 }
1597                 break;
1598         case WKBD_OMNIPRESENT:
1599                 if (ISMAPPED(wwin) && ISFOCUSED(wwin)) {
1600                         CloseWindowMenu(scr);
1601
1602                         wWindowSetOmnipresent(wwin, !wwin->flags.omnipresent);
1603                 }
1604                 break;
1605         case WKBD_RAISE:
1606                 if (ISMAPPED(wwin) && ISFOCUSED(wwin)) {
1607                         CloseWindowMenu(scr);
1608
1609                         wRaiseFrame(wwin->frame->core);
1610                 }
1611                 break;
1612         case WKBD_LOWER:
1613                 if (ISMAPPED(wwin) && ISFOCUSED(wwin)) {
1614                         CloseWindowMenu(scr);
1615
1616                         wLowerFrame(wwin->frame->core);
1617                 }
1618                 break;
1619         case WKBD_RAISELOWER:
1620                 /* raise or lower the window under the pointer, not the
1621                  * focused one
1622                  */
1623                 wwin = windowUnderPointer(scr);
1624                 if (wwin)
1625                         wRaiseLowerFrame(wwin->frame->core);
1626                 break;
1627         case WKBD_SHADE:
1628                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && !WFLAGP(wwin, no_shadeable)) {
1629                         if (wwin->flags.shaded)
1630                                 wUnshadeWindow(wwin);
1631                         else
1632                                 wShadeWindow(wwin);
1633                 }
1634                 break;
1635         case WKBD_MOVERESIZE:
1636                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && (IS_RESIZABLE(wwin) || IS_MOVABLE(wwin))) {
1637                         CloseWindowMenu(scr);
1638
1639                         wKeyboardMoveResizeWindow(wwin);
1640                 }
1641                 break;
1642         case WKBD_CLOSE:
1643                 if (ISMAPPED(wwin) && ISFOCUSED(wwin) && !WFLAGP(wwin, no_closable)) {
1644                         CloseWindowMenu(scr);
1645                         if (wwin->protocols.DELETE_WINDOW)
1646                                 wClientSendProtocol(wwin, w_global.atom.wm.delete_window, event->xkey.time);
1647                 }
1648                 break;
1649         case WKBD_SELECT:
1650                 if (ISMAPPED(wwin) && ISFOCUSED(wwin)) {
1651                         wSelectWindow(wwin, !wwin->flags.selected);
1652                 }
1653                 break;
1654
1655         case WKBD_WORKSPACEMAP:
1656                 if (wPreferences.enable_workspace_pager)
1657                         StartWorkspaceMap(scr);
1658                 break;
1659
1660         case WKBD_FOCUSNEXT:
1661                 StartWindozeCycle(wwin, event, True, False);
1662                 break;
1663
1664         case WKBD_FOCUSPREV:
1665                 StartWindozeCycle(wwin, event, False, False);
1666                 break;
1667
1668         case WKBD_GROUPNEXT:
1669                 StartWindozeCycle(wwin, event, True, True);
1670                 break;
1671
1672         case WKBD_GROUPPREV:
1673                 StartWindozeCycle(wwin, event, False, True);
1674                 break;
1675
1676         case WKBD_WORKSPACE1 ... WKBD_WORKSPACE10:
1677                 widx = command - WKBD_WORKSPACE1;
1678                 i = (scr->current_workspace / 10) * 10 + widx;
1679                 if (wPreferences.ws_advance || i < scr->workspace_count)
1680                         wWorkspaceChange(scr, i);
1681                 break;
1682
1683         case WKBD_NEXTWORKSPACE:
1684                 wWorkspaceRelativeChange(scr, 1);
1685                 break;
1686         case WKBD_PREVWORKSPACE:
1687                 wWorkspaceRelativeChange(scr, -1);
1688                 break;
1689         case WKBD_LASTWORKSPACE:
1690                 wWorkspaceChange(scr, scr->last_workspace);
1691                 break;
1692
1693         case WKBD_MOVE_WORKSPACE1 ... WKBD_MOVE_WORKSPACE10:
1694                 widx = command - WKBD_MOVE_WORKSPACE1;
1695                 i = (scr->current_workspace / 10) * 10 + widx;
1696                 if (wwin && (wPreferences.ws_advance || i < scr->workspace_count))
1697                         wWindowChangeWorkspace(wwin, i);
1698                 break;
1699
1700         case WKBD_MOVE_NEXTWORKSPACE:
1701                 if (wwin)
1702                         wWindowChangeWorkspaceRelative(wwin, 1);
1703                 break;
1704         case WKBD_MOVE_PREVWORKSPACE:
1705                 if (wwin)
1706                         wWindowChangeWorkspaceRelative(wwin, -1);
1707                 break;
1708         case WKBD_MOVE_LASTWORKSPACE:
1709                 if (wwin)
1710                         wWindowChangeWorkspace(wwin, scr->last_workspace);
1711                 break;
1712
1713         case WKBD_MOVE_NEXTWSLAYER:
1714         case WKBD_MOVE_PREVWSLAYER:
1715                 {
1716                         if (wwin) {
1717                                 int row, column;
1718
1719                                 row = scr->current_workspace / 10;
1720                                 column = scr->current_workspace % 10;
1721
1722                                 if (command == WKBD_MOVE_NEXTWSLAYER) {
1723                                         if ((row + 1) * 10 < scr->workspace_count)
1724                                                 wWindowChangeWorkspace(wwin, column + (row + 1) * 10);
1725                                 } else {
1726                                         if (row > 0)
1727                                                 wWindowChangeWorkspace(wwin, column + (row - 1) * 10);
1728                                 }
1729                         }
1730                 }
1731                 break;
1732
1733         case WKBD_WINDOW1:
1734         case WKBD_WINDOW2:
1735         case WKBD_WINDOW3:
1736         case WKBD_WINDOW4:
1737         case WKBD_WINDOW5:
1738         case WKBD_WINDOW6:
1739         case WKBD_WINDOW7:
1740         case WKBD_WINDOW8:
1741         case WKBD_WINDOW9:
1742         case WKBD_WINDOW10:
1743
1744                 widx = command - WKBD_WINDOW1;
1745
1746                 if (scr->shortcutWindows[widx]) {
1747                         WMArray *list = scr->shortcutWindows[widx];
1748                         int cw;
1749                         int count = WMGetArrayItemCount(list);
1750                         WWindow *twin;
1751                         WMArrayIterator iter;
1752                         WWindow *wwin;
1753
1754                         wUnselectWindows(scr);
1755                         cw = scr->current_workspace;
1756
1757                         WM_ETARETI_ARRAY(list, wwin, iter) {
1758                                 if (count > 1)
1759                                         wWindowChangeWorkspace(wwin, cw);
1760
1761                                 wMakeWindowVisible(wwin);
1762
1763                                 if (count > 1)
1764                                         wSelectWindow(wwin, True);
1765                         }
1766
1767                         /* rotate the order of windows, to create a cycling effect */
1768                         twin = WMGetFromArray(list, 0);
1769                         WMDeleteFromArray(list, 0);
1770                         WMAddToArray(list, twin);
1771
1772                 } else if (wwin && ISMAPPED(wwin) && ISFOCUSED(wwin)) {
1773                         if (scr->shortcutWindows[widx]) {
1774                                 WMFreeArray(scr->shortcutWindows[widx]);
1775                                 scr->shortcutWindows[widx] = NULL;
1776                         }
1777
1778                         if (wwin->flags.selected && scr->selected_windows) {
1779                                 scr->shortcutWindows[widx] = WMDuplicateArray(scr->selected_windows);
1780                                 /*WMRemoveFromArray(scr->shortcutWindows[index], wwin);
1781                                    WMInsertInArray(scr->shortcutWindows[index], 0, wwin); */
1782                         } else {
1783                                 scr->shortcutWindows[widx] = WMCreateArray(4);
1784                                 WMAddToArray(scr->shortcutWindows[widx], wwin);
1785                         }
1786
1787                         wSelectWindow(wwin, !wwin->flags.selected);
1788                         XFlush(dpy);
1789                         wusleep(3000);
1790                         wSelectWindow(wwin, !wwin->flags.selected);
1791                         XFlush(dpy);
1792
1793                 } else if (scr->selected_windows && WMGetArrayItemCount(scr->selected_windows)) {
1794
1795                         if (wwin->flags.selected && scr->selected_windows) {
1796                                 if (scr->shortcutWindows[widx]) {
1797                                         WMFreeArray(scr->shortcutWindows[widx]);
1798                                 }
1799                                 scr->shortcutWindows[widx] = WMDuplicateArray(scr->selected_windows);
1800                         }
1801                 }
1802
1803                 break;
1804
1805         case WKBD_RELAUNCH:
1806                 if (ISMAPPED(wwin) && ISFOCUSED(wwin))
1807                         (void) RelaunchWindow(wwin);
1808
1809                 break;
1810
1811         case WKBD_SWITCH_SCREEN:
1812                 if (w_global.screen_count > 1) {
1813                         WScreen *scr2;
1814                         int i;
1815
1816                         /* find index of this screen */
1817                         for (i = 0; i < w_global.screen_count; i++) {
1818                                 if (wScreenWithNumber(i) == scr)
1819                                         break;
1820                         }
1821                         i++;
1822                         if (i >= w_global.screen_count) {
1823                                 i = 0;
1824                         }
1825                         scr2 = wScreenWithNumber(i);
1826
1827                         if (scr2) {
1828                                 XWarpPointer(dpy, scr->root_win, scr2->root_win, 0, 0, 0, 0,
1829                                              scr2->scr_width / 2, scr2->scr_height / 2);
1830                         }
1831                 }
1832                 break;
1833
1834         case WKBD_RUN:
1835         {
1836                 char *cmdline;
1837
1838                 cmdline = ExpandOptions(scr, _("exec %A(Run,Type command to run:)"));
1839
1840                 if (cmdline) {
1841                         XGrabPointer(dpy, scr->root_win, True, 0,
1842                              GrabModeAsync, GrabModeAsync, None, wPreferences.cursor[WCUR_WAIT], CurrentTime);
1843                         XSync(dpy, False);
1844
1845                         ExecuteShellCommand(scr, cmdline);
1846                         wfree(cmdline);
1847
1848                         XUngrabPointer(dpy, CurrentTime);
1849                         XSync(dpy, False);
1850                 }
1851                 break;
1852         }
1853
1854         case WKBD_NEXTWSLAYER:
1855         case WKBD_PREVWSLAYER:
1856                 {
1857                         int row, column;
1858
1859                         row = scr->current_workspace / 10;
1860                         column = scr->current_workspace % 10;
1861
1862                         if (command == WKBD_NEXTWSLAYER) {
1863                                 if ((row + 1) * 10 < scr->workspace_count)
1864                                         wWorkspaceChange(scr, column + (row + 1) * 10);
1865                         } else {
1866                                 if (row > 0)
1867                                         wWorkspaceChange(scr, column + (row - 1) * 10);
1868                         }
1869                 }
1870                 break;
1871         case WKBD_CLIPRAISELOWER:
1872                 if (!wPreferences.flags.noclip)
1873                         wDockRaiseLower(scr->workspaces[scr->current_workspace]->clip);
1874                 break;
1875         case WKBD_DOCKRAISELOWER:
1876                 if (!wPreferences.flags.nodock)
1877                         wDockRaiseLower(scr->dock);
1878                 break;
1879 #ifdef KEEP_XKB_LOCK_STATUS
1880         case WKBD_TOGGLE:
1881                 if (wPreferences.modelock) {
1882                         /*toggle */
1883                         wwin = scr->focused_window;
1884
1885                         if (wwin && wwin->flags.mapped
1886                             && wwin->frame->workspace == wwin->screen_ptr->current_workspace
1887                             && !wwin->flags.miniaturized && !wwin->flags.hidden) {
1888                                 XkbGetState(dpy, XkbUseCoreKbd, &staterec);
1889
1890                                 wwin->frame->languagemode = wwin->frame->last_languagemode;
1891                                 wwin->frame->last_languagemode = staterec.group;
1892                                 XkbLockGroup(dpy, XkbUseCoreKbd, wwin->frame->languagemode);
1893
1894                         }
1895                 }
1896                 break;
1897 #endif  /* KEEP_XKB_LOCK_STATUS */
1898         }
1899 }
1900
1901 static void handleMotionNotify(XEvent * event)
1902 {
1903         WScreen *scr = wScreenForRootWindow(event->xmotion.root);
1904
1905         if (wPreferences.scrollable_menus) {
1906                 WMPoint p = wmkpoint(event->xmotion.x_root, event->xmotion.y_root);
1907                 WMRect rect = wGetRectForHead(scr, wGetHeadForPoint(scr, p));
1908
1909                 if (scr->flags.jump_back_pending ||
1910                     p.x <= (rect.pos.x + 1) ||
1911                     p.x >= (rect.pos.x + rect.size.width - 2) ||
1912                     p.y <= (rect.pos.y + 1) || p.y >= (rect.pos.y + rect.size.height - 2)) {
1913                         WMenu *menu;
1914
1915                         menu = wMenuUnderPointer(scr);
1916                         if (menu != NULL)
1917                                 wMenuScroll(menu);
1918                 }
1919         }
1920 }
1921
1922 static void handleVisibilityNotify(XEvent * event)
1923 {
1924         WWindow *wwin;
1925
1926         wwin = wWindowFor(event->xvisibility.window);
1927         if (!wwin)
1928                 return;
1929         wwin->flags.obscured = (event->xvisibility.state == VisibilityFullyObscured);
1930 }
1931
1932 static void handle_selection_request(XSelectionRequestEvent *event)
1933 {
1934 #ifdef USE_ICCCM_WMREPLACE
1935         static Atom atom_version = None;
1936         WScreen *scr;
1937         XSelectionEvent notify;
1938
1939         /*
1940          * This event must be sent to the slection requester to not block him
1941          *
1942          * We create it with the answer 'there is no selection' by default
1943          */
1944         notify.type = SelectionNotify;
1945         notify.display = dpy;
1946         notify.requestor = event->requestor;
1947         notify.selection = event->selection;
1948         notify.target = event->target;
1949         notify.property = None; /* This says that there is no selection */
1950         notify.time = event->time;
1951
1952         scr = wScreenForWindow(event->owner);
1953         if (!scr)
1954                 goto not_our_selection;
1955
1956         if (event->owner != scr->info_window)
1957                 goto not_our_selection;
1958
1959         if (event->selection != scr->sn_atom)
1960                 goto not_our_selection;
1961
1962         if (atom_version == None)
1963                 atom_version = XInternAtom(dpy, "VERSION", False);
1964
1965         if (event->target == atom_version) {
1966                 static const long icccm_version[] = { 2, 0 };
1967
1968                 /*
1969                  * This protocol is defined in ICCCM 2.0:
1970                  * http://www.x.org/releases/X11R7.7/doc/xorg-docs/icccm/icccm.html
1971                  *  "Communication with the Window Manager by Means of Selections"
1972                  */
1973
1974                 /*
1975                  * Setting the property means the content of the selection is available
1976                  * According to the ICCCM spec, we need to support being asked for a property
1977                  * set to 'None' for compatibility with old clients
1978                  */
1979                 notify.property = (event->property == None)?(event->target):(event->property);
1980
1981                 XChangeProperty(dpy, event->requestor, notify.property,
1982                                 XA_INTEGER, 32, PropModeReplace,
1983                                 (unsigned char *) icccm_version, wlengthof(icccm_version));
1984         }
1985
1986  not_our_selection:
1987         if (notify.property == None)
1988                 wwarning("received SelectionRequest(%s) for target=\"%s\" from requestor 0x%lX but we have no answer",
1989                          XGetAtomName(dpy, event->selection), XGetAtomName(dpy, event->target), (long) event->requestor);
1990
1991         /* Send the answer to the requestor */
1992         XSendEvent(dpy, event->requestor, False, 0L, (XEvent *) &notify);
1993
1994 #else
1995         /*
1996          * If the support for ICCCM window manager replacement was not enabled, we should not receive
1997          * this kind of event, so we just ignore it (Conceptually, we should reply with 'SelectionNotify'
1998          * event with property set to 'None' to tell that we don't have this selection, but that is a bit
1999          * costly for an event that shall never happen).
2000          */
2001         (void) event;
2002 #endif
2003 }
2004
2005 static void handle_selection_clear(XSelectionClearEvent *event)
2006 {
2007 #ifdef USE_ICCCM_WMREPLACE
2008         WScreen *scr = wScreenForWindow(event->window);
2009
2010         if (!scr)
2011                 return;
2012
2013         if (event->selection != scr->sn_atom)
2014                 return;
2015
2016         wmessage(_("another window manager is replacing us!"));
2017         Shutdown(WSExitMode);
2018 #else
2019         /*
2020          * If the support for ICCCM window manager replacement was not enabled, we should not receive
2021          * this kind of event, so we simply do nothing.
2022          */
2023         (void) event;
2024 #endif
2025 }