src/startup.c

   1 /*
   2  *  Window Maker window manager
   3  *
   4  *  Copyright (c) 1997, 1998 Alfredo K. Kojima
   5  *  Copyright (c) 1999       Dan Pascu
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20  *  USA.
  21  */
  22
  23 #include "wconfig.h"
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <unistd.h>
  28 #include <signal.h>
  29 #include <sys/wait.h>
  30 #ifdef __FreeBSD__
  31 #include <sys/signal.h>
  32 #endif
  33
  34 #include <X11/Xlib.h>
  35 #include <X11/Xutil.h>
  36 #include <X11/Intrinsic.h>
  37 #include <X11/cursorfont.h>
  38 #include <X11/Xproto.h>
  39 #include <X11/keysym.h>
  40 #ifdef SHAPE
  41 #include <X11/extensions/shape.h>
  42 #endif
  43
  44 #include "WindowMaker.h"
  45 #include "GNUstep.h"
  46 #include "texture.h"
  47 #include "screen.h"
  48 #include "window.h"
  49 #include "actions.h"
  50 #include "client.h"
  51 #include "funcs.h"
  52 #include "dock.h"
  53 #include "workspace.h"
  54 #include "keybind.h"
  55 #include "framewin.h"
  56 #include "session.h"
  57 #include "defaults.h"
  58 #include "properties.h"
  59 #include "dialog.h"
  60 #ifdef XDND
  61 #include "xdnd.h"
  62 #endif
  63
  64 #include "xutil.h"
  65
  66 #ifdef KWM_HINTS
  67 #include "kwm.h"
  68 #endif
  69
  70 #if 0
  71 #ifdef SYS_SIGLIST_DECLARED
  72 extern const char * const sys_siglist[];
  73 #endif
  74 #endif
  75
  76 /* for SunOS */
  77 #ifndef SA_RESTART
  78 # define SA_RESTART 0
  79 #endif
  80
  81
  82 /****** Global Variables ******/
  83
  84 extern WPreferences wPreferences;
  85
  86 extern WDDomain *WDWindowMaker;
  87 extern WDDomain *WDRootMenu;
  88 extern WDDomain *WDWindowAttributes;
  89
  90 extern WShortKey wKeyBindings[WKBD_LAST];
  91
  92 extern int wScreenCount;
  93
  94
  95 #ifdef SHAPE
  96 extern Bool wShapeSupported;
  97 extern int wShapeEventBase;
  98 #endif
  99
 100 #ifdef KEEP_XKB_LOCK_STATUS
 101 extern Bool wXkbSupported;
 102 extern int wXkbEventBase;
 103 #endif
 104
 105 /* contexts */
 106 extern XContext wWinContext;
 107 extern XContext wAppWinContext;
 108 extern XContext wStackContext;
 109
 110 /* atoms */
 111 extern Atom _XA_WM_STATE;
 112 extern Atom _XA_WM_CHANGE_STATE;
 113 extern Atom _XA_WM_PROTOCOLS;
 114 extern Atom _XA_WM_TAKE_FOCUS;
 115 extern Atom _XA_WM_DELETE_WINDOW;
 116 extern Atom _XA_WM_SAVE_YOURSELF;
 117 extern Atom _XA_WM_CLIENT_LEADER;
 118 extern Atom _XA_WM_COLORMAP_WINDOWS;
 119 extern Atom _XA_WM_COLORMAP_NOTIFY;
 120
 121 extern Atom _XA_GNUSTEP_WM_ATTR;
 122
 123 extern Atom _XA_WINDOWMAKER_MENU;
 124 extern Atom _XA_WINDOWMAKER_WM_PROTOCOLS;
 125 extern Atom _XA_WINDOWMAKER_STATE;
 126 extern Atom _XA_WINDOWMAKER_WM_FUNCTION;
 127 extern Atom _XA_WINDOWMAKER_NOTICEBOARD;
 128 extern Atom _XA_WINDOWMAKER_COMMAND;
 129 extern Atom _XA_WINDOWMAKER_ICON_SIZE;
 130 extern Atom _XA_WINDOWMAKER_ICON_TILE;
 131
 132 extern Atom _XA_GNUSTEP_WM_MINIATURIZE_WINDOW;
 133 extern Atom _XA_GNUSTEP_TITLEBAR_STATE;
 134
 135 #ifdef OFFIX_DND
 136 extern Atom _XA_DND_PROTOCOL;
 137 extern Atom _XA_DND_SELECTION;
 138 #endif
 139
 140
 141 /* cursors */
 142 extern Cursor wCursor[WCUR_LAST];
 143
 144 /* special flags */
 145 extern char WDelayedActionSet;
 146
 147 /***** Local *****/
 148
 149 static WScreen **wScreen = NULL;
 150
 151
 152 static unsigned int _NumLockMask = 0;
 153 static unsigned int _ScrollLockMask = 0;
 154
 155
 156
 157 static void manageAllWindows();
 158
 159 extern void NotifyDeadProcess(pid_t pid, unsigned char status);
 160
 161
 162 static int
 163 catchXError(Display *dpy, XErrorEvent *error)
 164 {
 165     char buffer[MAXLINE];
 166
 167     /* ignore some errors */
 168     if (error->resourceid != None
 169         && ((error->error_code == BadDrawable
 170              && error->request_code == X_GetGeometry)
 171             || (error->error_code == BadMatch
 172                 && (error->request_code == X_SetInputFocus))
 173             || (error->error_code == BadWindow)
 174             /*
 175                 && (error->request_code == X_GetWindowAttributes
 176                     || error->request_code == X_SetInputFocus
 177                     || error->request_code == X_ChangeWindowAttributes
 178                     || error->request_code == X_GetProperty
 179                     || error->request_code == X_ChangeProperty
 180                     || error->request_code == X_QueryTree
 181                     || error->request_code == X_GrabButton
 182                     || error->request_code == X_UngrabButton
 183                     || error->request_code == X_SendEvent
 184                     || error->request_code == X_ConfigureWindow))
 185              */
 186             || (error->request_code == X_InstallColormap))) {
 187 #ifndef DEBUG
 188
 189         return 0;
 190 #else
 191         printf("got X error %x %x %x\n", error->request_code,
 192                error->error_code, (unsigned)error->resourceid);
 193         return 0;
 194 #endif
 195     }
 196     FormatXError(dpy, error, buffer, MAXLINE);
 197     wwarning(_("internal X error: %s\n"), buffer);
 198     return -1;
 199 }
 200
 201
 202 /*
 203  *----------------------------------------------------------------------
 204  * handleXIO-
 205  *      Handle X shutdowns and other stuff.
 206  *----------------------------------------------------------------------
 207  */
 208 static int
 209 handleXIO(Display *xio_dpy)
 210 {
 211     dpy = NULL;
 212     Exit(0);
 213     return 0;
 214 }
 215
 216
 217 /*
 218  *----------------------------------------------------------------------
 219  * delayedAction-
 220  *      Action to be executed after the signal() handler is exited.
 221  *----------------------------------------------------------------------
 222  */
 223 static void
 224 delayedAction(void *cdata)
 225 {
 226     WDelayedActionSet = 0;
 227     /*
 228      * Make the event dispatcher do whatever it needs to do,
 229      * including handling zombie processes, restart and exit
 230      * signals.
 231      */
 232     DispatchEvent(NULL);
 233 }
 234
 235
 236
 237 /*
 238  *----------------------------------------------------------------------
 239  * handleSig--
 240  *      general signal handler. Exits the program gently.
 241  *----------------------------------------------------------------------
 242  */
 243 static RETSIGTYPE
 244 handleSig(int sig)
 245 {
 246     static int already_crashed = 0;
 247     int dumpcore = 0;
 248 #ifndef NO_EMERGENCY_AUTORESTART
 249     int crashAction;
 250     char *argv[2];
 251
 252     argv[1] = NULL;
 253 #endif
 254
 255     /*
 256      * No functions that potentially do Xlib calls should be called from
 257      * here. Xlib calls are not reentrant so the integrity of Xlib is
 258      * not guaranteed if a Xlib call is made from a signal handler.
 259      */
 260     if (sig == SIGUSR1) {
 261 #ifdef SYS_SIGLIST_DECLARED
 262         wwarning(_("got signal %i (%s) - restarting\n"), sig, sys_siglist[sig]);
 263 #else
 264         wwarning(_("got signal %i - restarting\n"), sig);
 265 #endif
 266
 267         WCHANGE_STATE(WSTATE_NEED_RESTART);
 268         /* setup idle handler, so that this will be handled when
 269          * the select() is returned becaused of the signal, even if
 270          * there are no X events in the queue */
 271         if (!WDelayedActionSet) {
 272             WDelayedActionSet = 1;
 273             WMAddIdleHandler(delayedAction, NULL);
 274         }
 275         return;
 276     } else if (sig == SIGTERM || sig == SIGHUP) {
 277 #ifdef SYS_SIGLIST_DECLARED
 278         wwarning(_("got signal %i (%s) - exiting...\n"), sig, sys_siglist[sig]);
 279 #else
 280         wwarning(_("got signal %i - exiting...\n"), sig);
 281 #endif
 282
 283         WCHANGE_STATE(WSTATE_NEED_EXIT);
 284
 285         if (!WDelayedActionSet) {
 286             WDelayedActionSet = 1;
 287             WMAddIdleHandler(delayedAction, NULL);
 288         }
 289         return;
 290     }
 291
 292 #ifdef SYS_SIGLIST_DECLARED
 293     wfatal(_("got signal %i (%s)\n"), sig, sys_siglist[sig]);
 294 #else
 295     wfatal(_("got signal %i\n"), sig);
 296 #endif
 297
 298     /* Setting the signal behaviour back to default and then reraising the
 299      * signal is a cleaner way to make program exit and core dump than calling
 300      * abort(), since it correctly returns from the signal handler and sets
 301      * the flags accordingly. -Dan
 302      */
 303     if (sig==SIGSEGV || sig==SIGFPE || sig==SIGBUS || sig==SIGILL
 304         || sig==SIGABRT) {
 305         if (already_crashed) {
 306             wfatal(_("crashed while trying to do some post-crash cleanup. Aborting immediatelly."));
 307             signal(sig, SIG_DFL);
 308             kill(getpid(), sig);
 309             return;
 310         }
 311         already_crashed = 1;
 312
 313         dumpcore = 1;
 314
 315 #ifndef NO_EMERGENCY_AUTORESTART
 316         /* Close the X connection and open a new one. This is to avoid messing
 317          * Xlib because we call to Xlib functions in a signal handler.
 318          */
 319         if (dpy)
 320             XCloseDisplay(dpy);
 321         dpy = XOpenDisplay("");
 322         if (dpy) {
 323             XGrabServer(dpy);
 324             crashAction = wShowCrashingDialogPanel(sig);
 325             XCloseDisplay(dpy);
 326             dpy = NULL;
 327         } else {
 328             wsyserror(_("cannot open connection for crashing dialog panel. Aborting."));
 329             crashAction = WMAbort;
 330         }
 331
 332         if (crashAction == WMAbort) {
 333             signal(sig, SIG_DFL);
 334             kill(getpid(), sig);
 335             return;
 336         }
 337
 338         if (crashAction == WMRestart) {
 339             /* we try to restart Window Maker */
 340             wwarning(_("trying to restart Window Maker..."));
 341             Restart(NULL, False);
 342             /* fallback to alternate window manager then */
 343         }
 344
 345         wwarning(_("trying to start alternate window manager..."));
 346
 347         Restart(FALLBACK_WINDOWMANAGER, False);
 348         Restart("fvwm", False);
 349         Restart("twm", False);
 350         wfatal(_("failed to start alternate window manager. Aborting."));
 351 #else
 352         wfatal(_("a fatal error has occured, probably due to a bug. "
 353                  "Please fill the included BUGFORM and report it."));
 354 #endif /* !NO_EMERGENCY_AUTORESTART */
 355
 356         signal(sig, SIG_DFL);
 357         kill(getpid(), sig);
 358         return;
 359
 360     }
 361
 362     wAbort(dumpcore);
 363 }
 364
 365
 366 static RETSIGTYPE
 367 ignoreSig(int signal)
 368 {
 369     return;
 370 }
 371
 372
 373 static RETSIGTYPE
 374 buryChild(int foo)
 375 {
 376     pid_t pid;
 377     int status;
 378
 379     /* R.I.P. */
 380     pid = waitpid(-1, &status, WNOHANG);
 381     if (pid>0) {
 382         NotifyDeadProcess(pid, WEXITSTATUS(status));
 383         /*
 384          * Make sure that the kid will be buried even if there are
 385          * no events in the X event queue
 386          */
 387         if (!WDelayedActionSet) {
 388             WDelayedActionSet = 1;
 389             WMAddIdleHandler(delayedAction, NULL);
 390         }
 391     }
 392 }
 393
 394
 395 static int
 396 getWorkspaceState(Window root, WWorkspaceState **state)
 397 {
 398     Atom type_ret;
 399     int fmt_ret;
 400     unsigned long nitems_ret;
 401     unsigned long bytes_after_ret;
 402     CARD32 *data;
 403
 404     if (XGetWindowProperty(dpy, root, _XA_WINDOWMAKER_STATE, 0, 2,
 405                            True, _XA_WINDOWMAKER_STATE,
 406                            &type_ret, &fmt_ret, &nitems_ret, &bytes_after_ret,
 407                            (unsigned char **)&data)!=Success || !data)
 408       return 0;
 409
 410     *state = malloc(sizeof(WWorkspaceState));
 411     if (*state) {
 412         (*state)->flags = data[0];
 413         (*state)->workspace = data[1];
 414     }
 415     XFree(data);
 416
 417     if (*state && type_ret==_XA_WINDOWMAKER_STATE)
 418       return 1;
 419     else
 420       return 0;
 421 }
 422
 423
 424 static void
 425 getOffendingModifiers()
 426 {
 427     int i;
 428     XModifierKeymap *modmap;
 429     KeyCode nlock, slock;
 430     static int mask_table[8] = {
 431         ShiftMask,LockMask,ControlMask,Mod1Mask,
 432             Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask
 433     };
 434
 435     nlock = XKeysymToKeycode(dpy, XK_Num_Lock);
 436     slock = XKeysymToKeycode(dpy, XK_Scroll_Lock);
 437
 438     /*
 439      * Find out the masks for the NumLock and ScrollLock modifiers,
 440      * so that we can bind the grabs for when they are enabled too.
 441      */
 442     modmap = XGetModifierMapping(dpy);
 443
 444     if (modmap!=NULL && modmap->max_keypermod>0) {
 445         for (i=0; i<8*modmap->max_keypermod; i++) {
 446             if (modmap->modifiermap[i]==nlock && nlock!=0)
 447                 _NumLockMask = mask_table[i/modmap->max_keypermod];
 448             else if (modmap->modifiermap[i]==slock && slock!=0)
 449                 _ScrollLockMask = mask_table[i/modmap->max_keypermod];
 450         }
 451     }
 452
 453     if (modmap)
 454         XFreeModifiermap(modmap);
 455 }
 456
 457
 458
 459 #ifdef NUMLOCK_HACK
 460 void
 461 wHackedGrabKey(int keycode, unsigned int modifiers,
 462                Window grab_window, Bool owner_events, int pointer_mode,
 463                int keyboard_mode)
 464 {
 465     if (modifiers == AnyModifier)
 466         return;
 467
 468     /* grab all combinations of the modifier with CapsLock, NumLock and
 469      * ScrollLock. How much memory/CPU does such a monstrosity consume
 470      * in the server?
 471      */
 472     if (_NumLockMask)
 473         XGrabKey(dpy, keycode, modifiers|_NumLockMask,
 474                  grab_window, owner_events, pointer_mode, keyboard_mode);
 475     if (_ScrollLockMask)
 476         XGrabKey(dpy, keycode, modifiers|_ScrollLockMask,
 477                  grab_window, owner_events, pointer_mode, keyboard_mode);
 478     if (_NumLockMask && _ScrollLockMask)
 479         XGrabKey(dpy, keycode, modifiers|_NumLockMask|_ScrollLockMask,
 480                  grab_window, owner_events, pointer_mode, keyboard_mode);
 481     if (_NumLockMask)
 482         XGrabKey(dpy, keycode, modifiers|_NumLockMask|LockMask,
 483                  grab_window, owner_events, pointer_mode, keyboard_mode);
 484     if (_ScrollLockMask)
 485         XGrabKey(dpy, keycode, modifiers|_ScrollLockMask|LockMask,
 486                  grab_window, owner_events, pointer_mode, keyboard_mode);
 487     if (_NumLockMask && _ScrollLockMask)
 488         XGrabKey(dpy, keycode, modifiers|_NumLockMask|_ScrollLockMask|LockMask,
 489                  grab_window, owner_events, pointer_mode, keyboard_mode);
 490     /* phew, I guess that's all, right? */
 491 }
 492 #endif
 493
 494 void
 495 wHackedGrabButton(unsigned int button, unsigned int modifiers,
 496                   Window grab_window, Bool owner_events,
 497                   unsigned int event_mask, int pointer_mode,
 498                   int keyboard_mode, Window confine_to, Cursor cursor)
 499 {
 500     XGrabButton(dpy, button, modifiers, grab_window, owner_events,
 501                 event_mask, pointer_mode, keyboard_mode, confine_to, cursor);
 502
 503     if (modifiers==AnyModifier)
 504         return;
 505
 506     XGrabButton(dpy, button, modifiers|LockMask, grab_window, owner_events,
 507                 event_mask, pointer_mode, keyboard_mode, confine_to, cursor);
 508
 509 #ifdef NUMLOCK_HACK
 510     /* same as above, but for mouse buttons */
 511     if (_NumLockMask)
 512         XGrabButton(dpy, button, modifiers|_NumLockMask,
 513                     grab_window, owner_events, event_mask, pointer_mode,
 514                 keyboard_mode, confine_to, cursor);
 515     if (_ScrollLockMask)
 516         XGrabButton(dpy, button, modifiers|_ScrollLockMask,
 517                     grab_window, owner_events, event_mask, pointer_mode,
 518                     keyboard_mode, confine_to, cursor);
 519     if (_NumLockMask && _ScrollLockMask)
 520         XGrabButton(dpy, button, modifiers|_ScrollLockMask|_NumLockMask,
 521                     grab_window, owner_events, event_mask, pointer_mode,
 522                     keyboard_mode, confine_to, cursor);
 523     if (_NumLockMask)
 524         XGrabButton(dpy, button, modifiers|_NumLockMask|LockMask,
 525                     grab_window, owner_events, event_mask, pointer_mode,
 526                 keyboard_mode, confine_to, cursor);
 527     if (_ScrollLockMask)
 528         XGrabButton(dpy, button, modifiers|_ScrollLockMask|LockMask,
 529                     grab_window, owner_events, event_mask, pointer_mode,
 530                     keyboard_mode, confine_to, cursor);
 531     if (_NumLockMask && _ScrollLockMask)
 532         XGrabButton(dpy, button, modifiers|_ScrollLockMask|_NumLockMask|LockMask,
 533                     grab_window, owner_events, event_mask, pointer_mode,
 534                     keyboard_mode, confine_to, cursor);
 535 #endif /* NUMLOCK_HACK */
 536 }
 537
 538 #ifdef notused
 539 void
 540 wHackedUngrabButton(unsigned int button, unsigned int modifiers,
 541                     Window grab_window)
 542 {
 543     XUngrabButton(dpy, button, modifiers|_NumLockMask,
 544                   grab_window);
 545     XUngrabButton(dpy, button, modifiers|_ScrollLockMask,
 546                   grab_window);
 547     XUngrabButton(dpy, button, modifiers|_NumLockMask|_ScrollLockMask,
 548                   grab_window);
 549     XUngrabButton(dpy, button, modifiers|_NumLockMask|LockMask,
 550                   grab_window);
 551     XUngrabButton(dpy, button, modifiers|_ScrollLockMask|LockMask,
 552                   grab_window);
 553     XUngrabButton(dpy, button, modifiers|_NumLockMask|_ScrollLockMask|LockMask,
 554                   grab_window);
 555 }
 556 #endif
 557
 558
 559
 560 WScreen*
 561 wScreenWithNumber(int i)
 562 {
 563     assert(i < wScreenCount);
 564
 565     return wScreen[i];
 566 }
 567
 568
 569 WScreen*
 570 wScreenForRootWindow(Window window)
 571 {
 572     int i;
 573
 574     if (wScreenCount==1)
 575         return wScreen[0];
 576
 577     /*
 578      * Since the number of heads will probably be small (normally 2),
 579      * it should be faster to use this than a hash table, because
 580      * of the overhead.
 581      */
 582     for (i=0; i<wScreenCount; i++) {
 583         if (wScreen[i]->root_win == window) {
 584             return wScreen[i];
 585         }
 586     }
 587
 588     assert("bad_root_window" && 0);
 589
 590     return NULL;
 591 }
 592
 593
 594 WScreen*
 595 wScreenSearchForRootWindow(Window window)
 596 {
 597     int i;
 598
 599     if (wScreenCount==1)
 600         return wScreen[0];
 601
 602     /*
 603      * Since the number of heads will probably be small (normally 2),
 604      * it should be faster to use this than a hash table, because
 605      * of the overhead.
 606      */
 607     for (i=0; i<wScreenCount; i++) {
 608         if (wScreen[i]->root_win == window) {
 609             return wScreen[i];
 610         }
 611     }
 612
 613     return NULL;
 614 }
 615
 616
 617 WScreen*
 618 wScreenForWindow(Window window)
 619 {
 620     XWindowAttributes attr;
 621
 622     if (wScreenCount==1)
 623         return wScreen[0];
 624
 625     if (XGetWindowAttributes(dpy, window, &attr)) {
 626         return wScreenForRootWindow(attr.root);
 627     }
 628     return NULL;
 629 }
 630
 631
 632 static char *atomNames[] = {
 633     "WM_STATE",
 634     "WM_CHANGE_STATE",
 635     "WM_PROTOCOLS",
 636     "WM_TAKE_FOCUS",
 637     "WM_DELETE_WINDOW",
 638     "WM_SAVE_YOURSELF",
 639     "WM_CLIENT_LEADER",
 640     "WM_COLORMAP_WINDOWS",
 641     "WM_COLORMAP_NOTIFY",
 642     GNUSTEP_WM_ATTR_NAME,
 643     "_WINDOWMAKER_MENU",
 644     "_WINDOWMAKER_STATE",
 645     "_WINDOWMAKER_WM_PROTOCOLS",
 646     GNUSTEP_WM_MINIATURIZE_WINDOW,
 647     "_WINDOWMAKER_WM_FUNCTION",
 648     "_WINDOWMAKER_NOTICEBOARD",
 649     "_WINDOWMAKER_COMMAND",
 650     "_WINDOWMAKER_ICON_SIZE",
 651     "_WINDOWMAKER_ICON_TILE",
 652     GNUSTEP_TITLEBAR_STATE
 653 };
 654
 655
 656 /*
 657  *----------------------------------------------------------
 658  * StartUp--
 659  *      starts the window manager and setup global data.
 660  * Called from main() at startup.
 661  *
 662  * Side effects:
 663  * global data declared in main.c is initialized
 664  *----------------------------------------------------------
 665  */
 666 void
 667 StartUp(Bool defaultScreenOnly)
 668 {
 669     WWorkspaceState *ws_state;
 670     struct sigaction sig_action;
 671     int j, max;
 672     Atom atom[sizeof(atomNames)/sizeof(char*)];
 673
 674     /*
 675      * Ignore CapsLock in modifiers
 676      */
 677     ValidModMask = 0xff & ~LockMask;
 678
 679     getOffendingModifiers();
 680     /*
 681      * Ignore NumLock and ScrollLock too
 682      */
 683     ValidModMask &= ~(_NumLockMask|_ScrollLockMask);
 684
 685
 686     memset(&wKeyBindings, 0, sizeof(wKeyBindings));
 687
 688     wWinContext = XUniqueContext();
 689     wAppWinContext = XUniqueContext();
 690     wStackContext = XUniqueContext();
 691
 692 /*    _XA_VERSION = XInternAtom(dpy, "VERSION", False);*/
 693
 694     XInternAtoms(dpy, atomNames, sizeof(atomNames)/sizeof(char*),
 695                  False, atom);
 696
 697     _XA_WM_STATE = atom[0];
 698     _XA_WM_CHANGE_STATE = atom[1];
 699     _XA_WM_PROTOCOLS = atom[2];
 700     _XA_WM_TAKE_FOCUS = atom[3];
 701     _XA_WM_DELETE_WINDOW = atom[4];
 702     _XA_WM_SAVE_YOURSELF = atom[5];
 703     _XA_WM_CLIENT_LEADER = atom[6];
 704     _XA_WM_COLORMAP_WINDOWS = atom[7];
 705     _XA_WM_COLORMAP_NOTIFY = atom[8];
 706
 707     _XA_GNUSTEP_WM_ATTR = atom[9];
 708
 709     _XA_WINDOWMAKER_MENU = atom[10];
 710     _XA_WINDOWMAKER_STATE = atom[11];
 711
 712     _XA_WINDOWMAKER_WM_PROTOCOLS = atom[12];
 713
 714     _XA_GNUSTEP_WM_MINIATURIZE_WINDOW = atom[13];
 715
 716     _XA_WINDOWMAKER_WM_FUNCTION = atom[14];
 717
 718     _XA_WINDOWMAKER_NOTICEBOARD = atom[15];
 719
 720     _XA_WINDOWMAKER_COMMAND = atom[16];
 721
 722     _XA_WINDOWMAKER_ICON_SIZE = atom[17];
 723     _XA_WINDOWMAKER_ICON_TILE = atom[18];
 724
 725     _XA_GNUSTEP_TITLEBAR_STATE = atom[19];
 726
 727 #ifdef OFFIX_DND
 728     _XA_DND_SELECTION = XInternAtom(dpy, "DndSelection", False);
 729     _XA_DND_PROTOCOL = XInternAtom(dpy, "DndProtocol", False);
 730 #endif
 731 #ifdef XDND
 732     wXDNDInitializeAtoms();
 733 #endif
 734
 735
 736     /* cursors */
 737 #ifdef DEFINABLE_CURSOR
 738     wCursor[WCUR_NORMAL] = None;
 739 #else
 740     wCursor[WCUR_NORMAL] = XCreateFontCursor(dpy, XC_left_ptr);
 741 #endif
 742     wCursor[WCUR_ROOT] = XCreateFontCursor(dpy, XC_left_ptr);
 743     wCursor[WCUR_ARROW] = XCreateFontCursor(dpy, XC_top_left_arrow);
 744     wCursor[WCUR_MOVE] = XCreateFontCursor(dpy, XC_fleur);
 745     wCursor[WCUR_RESIZE] = XCreateFontCursor(dpy, XC_sizing);
 746     wCursor[WCUR_TOPLEFTRESIZE] = XCreateFontCursor(dpy, XC_top_left_corner);
 747     wCursor[WCUR_TOPRIGHTRESIZE] = XCreateFontCursor(dpy, XC_top_right_corner);
 748     wCursor[WCUR_BOTTOMLEFTRESIZE] = XCreateFontCursor(dpy, XC_bottom_left_corner);
 749     wCursor[WCUR_BOTTOMRIGHTRESIZE] = XCreateFontCursor(dpy, XC_bottom_right_corner);
 750     wCursor[WCUR_VERTICALRESIZE] = XCreateFontCursor(dpy, XC_sb_v_double_arrow);
 751     wCursor[WCUR_HORIZONRESIZE] = XCreateFontCursor(dpy, XC_sb_h_double_arrow);
 752     wCursor[WCUR_WAIT] = XCreateFontCursor(dpy, XC_watch);
 753     wCursor[WCUR_QUESTION] = XCreateFontCursor(dpy, XC_question_arrow);
 754     wCursor[WCUR_TEXT]     = XCreateFontCursor(dpy, XC_xterm); /* odd name???*/
 755     wCursor[WCUR_SELECT] = XCreateFontCursor(dpy, XC_cross);
 756
 757     /* emergency exit... */
 758     sig_action.sa_handler = handleSig;
 759     sigemptyset(&sig_action.sa_mask);
 760
 761     /* Here we don't care about SA_RESTART since these signals will close
 762      * wmaker anyway.
 763      * -Dan */
 764     sig_action.sa_flags = 0;
 765     sigaction(SIGINT, &sig_action, NULL);
 766     sigaction(SIGTERM, &sig_action, NULL);
 767     sigaction(SIGHUP, &sig_action, NULL);
 768     sigaction(SIGQUIT, &sig_action, NULL);
 769     sigaction(SIGSEGV, &sig_action, NULL);
 770     sigaction(SIGBUS, &sig_action, NULL);
 771     sigaction(SIGFPE, &sig_action, NULL);
 772     sigaction(SIGABRT, &sig_action, NULL);
 773
 774     /* Here we set SA_RESTART for safety, because SIGUSR1 may not be handled
 775      * immediately.
 776      * -Dan */
 777     sig_action.sa_flags = SA_RESTART;
 778     sigaction(SIGUSR1, &sig_action, NULL);
 779
 780     /* ignore dead pipe */
 781     sig_action.sa_handler = ignoreSig;
 782     sig_action.sa_flags = SA_RESTART;
 783     sigaction(SIGPIPE, &sig_action, NULL);
 784
 785     /* handle dead children */
 786     sig_action.sa_handler = buryChild;
 787     sig_action.sa_flags = SA_NOCLDSTOP|SA_RESTART;
 788     sigaction(SIGCHLD, &sig_action, NULL);
 789
 790     /* Now we unblock all signals, that may have been blocked by the parent
 791      * who exec()-ed us. This can happen for example if Window Maker crashes
 792      * and restarts itself or another window manager from the signal handler.
 793      * In this case, the new proccess inherits the blocked signal mask and
 794      * will no longer react to that signal, until unblocked.
 795      * This is because the signal handler of the proccess who crashed (parent)
 796      * didn't return, and the signal remained blocked. -Dan
 797      */
 798     sigfillset(&sig_action.sa_mask);
 799     sigprocmask(SIG_UNBLOCK, &sig_action.sa_mask, NULL);
 800
 801     /* handle X shutdowns a such */
 802     XSetIOErrorHandler(handleXIO);
 803
 804     /* set hook for out event dispatcher in WINGs event dispatcher */
 805     WMHookEventHandler(DispatchEvent);
 806
 807     /* initialize defaults stuff */
 808     WDWindowMaker = wDefaultsInitDomain("WindowMaker", True);
 809     if (!WDWindowMaker->dictionary) {
 810         wwarning(_("could not read domain \"%s\" from defaults database"),
 811                  "WindowMaker");
 812     }
 813
 814     /* read defaults that don't change until a restart and are
 815      * screen independent */
 816     wReadStaticDefaults(WDWindowMaker ? WDWindowMaker->dictionary : NULL);
 817
 818     /* check sanity of some values */
 819     if (wPreferences.icon_size < 16) {
 820         wwarning(_("icon size is configured to %i, but it's too small. Using 16, instead\n"),
 821                  wPreferences.icon_size);
 822         wPreferences.icon_size = 16;
 823     }
 824
 825     /* init other domains */
 826     WDRootMenu = wDefaultsInitDomain("WMRootMenu", False);
 827     if (!WDRootMenu->dictionary) {
 828         wwarning(_("could not read domain \"%s\" from defaults database"),
 829                  "WMRootMenu");
 830     }
 831
 832     WDWindowAttributes = wDefaultsInitDomain("WMWindowAttributes", True);
 833     if (!WDWindowAttributes->dictionary) {
 834         wwarning(_("could not read domain \"%s\" from defaults database"),
 835                  "WMWindowAttributes");
 836     }
 837
 838     XSetErrorHandler((XErrorHandler)catchXError);
 839
 840 #ifdef SHAPE
 841     /* ignore j */
 842     wShapeSupported = XShapeQueryExtension(dpy, &wShapeEventBase, &j);
 843 #endif
 844
 845 #ifdef KEEP_XKB_LOCK_STATUS
 846     wXkbSupported = XkbQueryExtension(dpy, NULL, &wXkbEventBase, NULL, NULL, NULL);
 847     if(wPreferences.modelock && !wXkbSupported) {
 848         wwarning(_("XKB is not supported. KbdModeLock is automatically disabled."));
 849         wPreferences.modelock = 0;
 850     }
 851 #endif
 852
 853     if (defaultScreenOnly) {
 854         max = 1;
 855     } else {
 856         max = ScreenCount(dpy);
 857     }
 858     wScreen = wmalloc(sizeof(WScreen*)*max);
 859
 860     wScreenCount = 0;
 861
 862     /* manage the screens */
 863     for (j = 0; j < max; j++) {
 864         if (defaultScreenOnly || max==1) {
 865             wScreen[wScreenCount] = wScreenInit(DefaultScreen(dpy));
 866             if (!wScreen[wScreenCount]) {
 867                 wfatal(_("it seems that there is already a window manager running"));
 868                 Exit(1);
 869             }
 870         } else {
 871             wScreen[wScreenCount] = wScreenInit(j);
 872             if (!wScreen[wScreenCount]) {
 873                 wwarning(_("could not manage screen %i"), j);
 874                 continue;
 875             }
 876         }
 877         wScreenCount++;
 878     }
 879
 880     /* initialize/restore state for the screens */
 881     for (j = 0; j < wScreenCount; j++) {
 882         /* restore workspace state */
 883         if (!getWorkspaceState(wScreen[j]->root_win, &ws_state)) {
 884             ws_state = NULL;
 885         }
 886
 887         wScreenRestoreState(wScreen[j]);
 888
 889         /* manage all windows that were already here before us */
 890         if (!wPreferences.flags.nodock && wScreen[j]->dock)
 891             wScreen[j]->last_dock = wScreen[j]->dock;
 892
 893         manageAllWindows(wScreen[j]);
 894
 895         /* restore saved menus */
 896         wMenuRestoreState(wScreen[j]);
 897
 898         /* If we're not restarting restore session */
 899         if (ws_state == NULL && !wPreferences.flags.norestore)
 900             wSessionRestoreState(wScreen[j]);
 901
 902         if (!wPreferences.flags.noautolaunch) {
 903             /* auto-launch apps */
 904             if (!wPreferences.flags.nodock && wScreen[j]->dock) {
 905                 wScreen[j]->last_dock = wScreen[j]->dock;
 906                 wDockDoAutoLaunch(wScreen[j]->dock, 0);
 907             }
 908             /* auto-launch apps in clip */
 909             if (!wPreferences.flags.noclip) {
 910                 int i;
 911                 for(i=0; i<wScreen[j]->workspace_count; i++) {
 912                     if (wScreen[j]->workspaces[i]->clip) {
 913                         wScreen[j]->last_dock = wScreen[j]->workspaces[i]->clip;
 914                         wDockDoAutoLaunch(wScreen[j]->workspaces[i]->clip, i);
 915                     }
 916                 }
 917             }
 918         }
 919
 920         /* go to workspace where we were before restart */
 921         if (ws_state) {
 922             wWorkspaceForceChange(wScreen[j], ws_state->workspace);
 923             free(ws_state);
 924         } else {
 925             wSessionRestoreLastWorkspace(wScreen[j]);
 926         }
 927
 928 #ifdef KWM_HINTS
 929         wKWMSetInitializedHint(wScreen[j]);
 930 #endif
 931     }
 932
 933     if (wScreenCount == 0) {
 934         wfatal(_("could not manage any screen"));
 935         Exit(1);
 936     }
 937
 938     if (!wPreferences.flags.noupdates) {
 939         /* setup defaults file polling */
 940         WMAddTimerHandler(3000, wDefaultsCheckDomains, NULL);
 941     }
 942 }
 943
 944
 945
 946
 947 static Bool
 948 windowInList(Window window, Window *list, int count)
 949 {
 950     for (; count>=0; count--) {
 951         if (window == list[count])
 952             return True;
 953     }
 954     return False;
 955 }
 956
 957 /*
 958  *-----------------------------------------------------------------------
 959  * manageAllWindows--
 960  *      Manages all windows in the screen.
 961  *
 962  * Notes:
 963  *      Called when the wm is being started.
 964  *      No events can be processed while the windows are being
 965  * reparented/managed.
 966  *-----------------------------------------------------------------------
 967  */
 968 static void
 969 manageAllWindows(WScreen *scr)
 970 {
 971     Window root, parent;
 972     Window *children;
 973     unsigned int nchildren;
 974     unsigned int i, j;
 975     WWindow *wwin;
 976
 977     XGrabServer(dpy);
 978     XQueryTree(dpy, scr->root_win, &root, &parent, &children, &nchildren);
 979
 980     scr->flags.startup = 1;
 981
 982     /* first remove all icon windows */
 983     for (i = 0; i < nchildren; i++) {
 984         XWMHints *wmhints;
 985
 986         if (children[i]==None)
 987             continue;
 988
 989         wmhints = XGetWMHints(dpy, children[i]);
 990         if (wmhints && (wmhints->flags & IconWindowHint)) {
 991             for (j = 0; j < nchildren; j++)  {
 992                 if (children[j] == wmhints->icon_window) {
 993                     XFree(wmhints);
 994                     wmhints = NULL;
 995                     children[j] = None;
 996                     break;
 997                 }
 998             }
 999         }
1000         if (wmhints) {
1001             XFree(wmhints);
1002         }
1003     }
1004
1005
1006     for (i = 0; i < nchildren; i++) {
1007         if (children[i] == None)
1008             continue;
1009
1010 #ifdef KWM_HINTS
1011         wKWMCheckModule(scr, children[i]);
1012 #endif
1013         wwin = wManageWindow(scr, children[i]);
1014         if (wwin) {
1015             /* apply states got from WSavedState */
1016             /* shaded + minimized is not restored correctly */
1017             if (wwin->flags.shaded) {
1018                 wwin->flags.shaded = 0;
1019                 wShadeWindow(wwin);
1020             }
1021             if (wwin->flags.miniaturized
1022                 && (wwin->transient_for == None
1023                     || wwin->transient_for == scr->root_win
1024                     || !windowInList(wwin->transient_for, children,
1025                                      nchildren))) {
1026
1027                 wwin->flags.skip_next_animation = 1;
1028                 wwin->flags.miniaturized = 0;
1029                 wIconifyWindow(wwin);
1030             } else {
1031                 wClientSetState(wwin, NormalState, None);
1032             }
1033         }
1034     }
1035     XUngrabServer(dpy);
1036
1037     /* hide apps */
1038     wwin = scr->focused_window;
1039     while (wwin) {
1040         if (wwin->flags.hidden) {
1041             WApplication *wapp = wApplicationOf(wwin->main_window);
1042
1043             if (wapp) {
1044                 wwin->flags.hidden = 0;
1045                 wHideApplication(wapp);
1046             } else {
1047                 wwin->flags.hidden = 0;
1048             }
1049         }
1050         wwin = wwin->prev;
1051     }
1052
1053     XFree(children);
1054     scr->flags.startup = 0;
1055     scr->flags.startup2 = 1;
1056
1057     while (XPending(dpy)) {
1058         XEvent ev;
1059         WMNextEvent(dpy, &ev);
1060         WMHandleEvent(&ev);
1061     }
1062     wWorkspaceForceChange(scr, 0);
1063     if (!wPreferences.flags.noclip)
1064         wDockShowIcons(scr->workspaces[scr->current_workspace]->clip);
1065     scr->flags.startup2 = 0;
1066 }
1067
1068
1069