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 <errno.h>
  29 #include <signal.h>
  30 #include <sys/wait.h>
  31 #ifdef __FreeBSD__
  32 #include <sys/signal.h>
  33 #endif
  34
  35 #include <X11/Xlib.h>
  36 #include <X11/Xutil.h>
  37 #include <X11/Intrinsic.h>
  38 #include <X11/cursorfont.h>
  39 #include <X11/Xproto.h>
  40 #include <X11/keysym.h>
  41 #ifdef SHAPE
  42 #include <X11/extensions/shape.h>
  43 #endif
  44
  45 #include "WindowMaker.h"
  46 #include "GNUstep.h"
  47 #include "texture.h"
  48 #include "screen.h"
  49 #include "window.h"
  50 #include "actions.h"
  51 #include "client.h"
  52 #include "funcs.h"
  53 #include "dock.h"
  54 #include "workspace.h"
  55 #include "keybind.h"
  56 #include "framewin.h"
  57 #include "session.h"
  58 #include "defaults.h"
  59 #include "properties.h"
  60 #include "dialog.h"
  61 #ifdef XDND
  62 #include "xdnd.h"
  63 #endif
  64
  65 #include "xutil.h"
  66
  67 #ifdef KWM_HINTS
  68 #include "kwm.h"
  69 #endif
  70
  71 #if 0
  72 #ifdef SYS_SIGLIST_DECLARED
  73 extern const char * const sys_siglist[];
  74 #endif
  75 #endif
  76
  77 /* for SunOS */
  78 #ifndef SA_RESTART
  79 # define SA_RESTART 0
  80 #endif
  81
  82 /* Just in case, for weirdo systems */
  83 #ifndef SA_NODEFER
  84 # define SA_NODEFER 0
  85 #endif
  86
  87 /****** Global Variables ******/
  88
  89 extern WPreferences wPreferences;
  90
  91 extern WDDomain *WDWindowMaker;
  92 extern WDDomain *WDRootMenu;
  93 extern WDDomain *WDWindowAttributes;
  94
  95 extern WShortKey wKeyBindings[WKBD_LAST];
  96
  97 extern int wScreenCount;
  98
  99
 100 #ifdef SHAPE
 101 extern Bool wShapeSupported;
 102 extern int wShapeEventBase;
 103 #endif
 104
 105 #ifdef KEEP_XKB_LOCK_STATUS
 106 extern Bool wXkbSupported;
 107 extern int wXkbEventBase;
 108 #endif
 109
 110 /* contexts */
 111 extern XContext wWinContext;
 112 extern XContext wAppWinContext;
 113 extern XContext wStackContext;
 114
 115 /* atoms */
 116 extern Atom _XA_WM_STATE;
 117 extern Atom _XA_WM_CHANGE_STATE;
 118 extern Atom _XA_WM_PROTOCOLS;
 119 extern Atom _XA_WM_TAKE_FOCUS;
 120 extern Atom _XA_WM_DELETE_WINDOW;
 121 extern Atom _XA_WM_SAVE_YOURSELF;
 122 extern Atom _XA_WM_CLIENT_LEADER;
 123 extern Atom _XA_WM_COLORMAP_WINDOWS;
 124 extern Atom _XA_WM_COLORMAP_NOTIFY;
 125
 126 extern Atom _XA_GNUSTEP_WM_ATTR;
 127
 128 extern Atom _XA_WINDOWMAKER_MENU;
 129 extern Atom _XA_WINDOWMAKER_WM_PROTOCOLS;
 130 extern Atom _XA_WINDOWMAKER_STATE;
 131 extern Atom _XA_WINDOWMAKER_WM_FUNCTION;
 132 extern Atom _XA_WINDOWMAKER_NOTICEBOARD;
 133 extern Atom _XA_WINDOWMAKER_COMMAND;
 134 extern Atom _XA_WINDOWMAKER_ICON_SIZE;
 135 extern Atom _XA_WINDOWMAKER_ICON_TILE;
 136
 137 extern Atom _XA_GNUSTEP_WM_MINIATURIZE_WINDOW;
 138 extern Atom _XA_GNUSTEP_TITLEBAR_STATE;
 139
 140 #ifdef OFFIX_DND
 141 extern Atom _XA_DND_PROTOCOL;
 142 extern Atom _XA_DND_SELECTION;
 143 #endif
 144
 145
 146 /* cursors */
 147 extern Cursor wCursor[WCUR_LAST];
 148
 149 /* special flags */
 150 extern char WDelayedActionSet;
 151
 152 /***** Local *****/
 153
 154 static WScreen **wScreen = NULL;
 155
 156
 157 static unsigned int _NumLockMask = 0;
 158 static unsigned int _ScrollLockMask = 0;
 159
 160
 161
 162 static void manageAllWindows();
 163
 164 extern void NotifyDeadProcess(pid_t pid, unsigned char status);
 165
 166
 167 static int
 168 catchXError(Display *dpy, XErrorEvent *error)
 169 {
 170     char buffer[MAXLINE];
 171
 172     /* ignore some errors */
 173     if (error->resourceid != None
 174         && ((error->error_code == BadDrawable
 175              && error->request_code == X_GetGeometry)
 176             || (error->error_code == BadMatch
 177                 && (error->request_code == X_SetInputFocus))
 178             || (error->error_code == BadWindow)
 179             /*
 180                 && (error->request_code == X_GetWindowAttributes
 181                     || error->request_code == X_SetInputFocus
 182                     || error->request_code == X_ChangeWindowAttributes
 183                     || error->request_code == X_GetProperty
 184                     || error->request_code == X_ChangeProperty
 185                     || error->request_code == X_QueryTree
 186                     || error->request_code == X_GrabButton
 187                     || error->request_code == X_UngrabButton
 188                     || error->request_code == X_SendEvent
 189                     || error->request_code == X_ConfigureWindow))
 190              */
 191             || (error->request_code == X_InstallColormap))) {
 192 #ifndef DEBUG
 193
 194         return 0;
 195 #else
 196         printf("got X error %x %x %x\n", error->request_code,
 197                error->error_code, (unsigned)error->resourceid);
 198         return 0;
 199 #endif
 200     }
 201     FormatXError(dpy, error, buffer, MAXLINE);
 202     wwarning(_("internal X error: %s\n"), buffer);
 203     return -1;
 204 }
 205
 206
 207 /*
 208  *----------------------------------------------------------------------
 209  * handleXIO-
 210  *      Handle X shutdowns and other stuff.
 211  *----------------------------------------------------------------------
 212  */
 213 static int
 214 handleXIO(Display *xio_dpy)
 215 {
 216     dpy = NULL;
 217     Exit(0);
 218     return 0;
 219 }
 220
 221
 222 /*
 223  *----------------------------------------------------------------------
 224  * delayedAction-
 225  *      Action to be executed after the signal() handler is exited.
 226  *----------------------------------------------------------------------
 227  */
 228 static void
 229 delayedAction(void *cdata)
 230 {
 231     WDelayedActionSet = 0;
 232     /*
 233      * Make the event dispatcher do whatever it needs to do,
 234      * including handling zombie processes, restart and exit
 235      * signals.
 236      */
 237     DispatchEvent(NULL);
 238 }
 239
 240
 241
 242 /*
 243  *----------------------------------------------------------------------
 244  * handleSig--
 245  *      general signal handler. Exits the program gently.
 246  *----------------------------------------------------------------------
 247  */
 248 static RETSIGTYPE
 249 handleSig(int sig)
 250 {
 251     static int already_crashed = 0;
 252     int dumpcore = 0;
 253 #ifndef NO_EMERGENCY_AUTORESTART
 254     int crashAction;
 255     char *argv[2];
 256
 257     argv[1] = NULL;
 258 #endif
 259
 260     /*
 261      * No functions that potentially do Xlib calls should be called from
 262      * here. Xlib calls are not reentrant so the integrity of Xlib is
 263      * not guaranteed if a Xlib call is made from a signal handler.
 264      */
 265     if (sig == SIGUSR1) {
 266 #ifdef SYS_SIGLIST_DECLARED
 267         wwarning(_("got signal %i (%s) - restarting\n"), sig, sys_siglist[sig]);
 268 #else
 269         wwarning(_("got signal %i - restarting\n"), sig);
 270 #endif
 271
 272         WCHANGE_STATE(WSTATE_NEED_RESTART);
 273         /* setup idle handler, so that this will be handled when
 274          * the select() is returned becaused of the signal, even if
 275          * there are no X events in the queue */
 276         if (!WDelayedActionSet) {
 277             WDelayedActionSet = 1;
 278             WMAddIdleHandler(delayedAction, NULL);
 279         }
 280         return;
 281     } else if (sig == SIGUSR2) {
 282 #ifdef SYS_SIGLIST_DECLARED
 283         wwarning(_("got signal %i (%s) - rereading defaults\n"), sig, sys_siglist[sig]);
 284 #else
 285         wwarning(_("got signal %i - rereading defaults\n"), sig);
 286 #endif
 287
 288         WCHANGE_STATE(WSTATE_NEED_REREAD);
 289         /* setup idle handler, so that this will be handled when
 290          * the select() is returned becaused of the signal, even if
 291          * there are no X events in the queue */
 292         if (!WDelayedActionSet) {
 293             WDelayedActionSet = 1;
 294             WMAddIdleHandler(delayedAction, NULL);
 295         }
 296         return;
 297     } else if (sig == SIGTERM || sig == SIGHUP) {
 298 #ifdef SYS_SIGLIST_DECLARED
 299         wwarning(_("got signal %i (%s) - exiting...\n"), sig, sys_siglist[sig]);
 300 #else
 301         wwarning(_("got signal %i - exiting...\n"), sig);
 302 #endif
 303
 304         WCHANGE_STATE(WSTATE_NEED_EXIT);
 305
 306         if (!WDelayedActionSet) {
 307             WDelayedActionSet = 1;
 308             WMAddIdleHandler(delayedAction, NULL);
 309         }
 310         return;
 311     }
 312
 313 #ifdef SYS_SIGLIST_DECLARED
 314     wfatal(_("got signal %i (%s)\n"), sig, sys_siglist[sig]);
 315 #else
 316     wfatal(_("got signal %i\n"), sig);
 317 #endif
 318
 319     /* Setting the signal behaviour back to default and then reraising the
 320      * signal is a cleaner way to make program exit and core dump than calling
 321      * abort(), since it correctly returns from the signal handler and sets
 322      * the flags accordingly. -Dan
 323      */
 324     if (sig==SIGSEGV || sig==SIGFPE || sig==SIGBUS || sig==SIGILL
 325         || sig==SIGABRT) {
 326         if (already_crashed) {
 327             wfatal(_("crashed while trying to do some post-crash cleanup. Aborting immediatelly."));
 328             signal(sig, SIG_DFL);
 329             kill(getpid(), sig);
 330             return;
 331         }
 332         already_crashed = 1;
 333
 334         dumpcore = 1;
 335
 336 #ifndef NO_EMERGENCY_AUTORESTART
 337         /* Close the X connection and open a new one. This is to avoid messing
 338          * Xlib because we call to Xlib functions in a signal handler.
 339          */
 340         if (dpy)
 341             XCloseDisplay(dpy);
 342         dpy = XOpenDisplay("");
 343         if (dpy) {
 344             XGrabServer(dpy);
 345             crashAction = wShowCrashingDialogPanel(sig);
 346             XCloseDisplay(dpy);
 347             dpy = NULL;
 348         } else {
 349             wsyserror(_("cannot open connection for crashing dialog panel. Aborting."));
 350             crashAction = WMAbort;
 351         }
 352
 353         if (crashAction == WMAbort) {
 354             signal(sig, SIG_DFL);
 355             kill(getpid(), sig);
 356             return;
 357         }
 358
 359         if (crashAction == WMRestart) {
 360             /* we try to restart Window Maker */
 361             wmessage(_("trying to restart Window Maker..."));
 362             Restart(NULL, False);
 363             /* fallback to alternate window manager then */
 364         }
 365
 366         wmessage(_("trying to start alternate window manager..."));
 367
 368         Restart(FALLBACK_WINDOWMANAGER, False);
 369         Restart("fvwm", False);
 370         Restart("twm", False);
 371         wfatal(_("failed to start alternate window manager. Aborting."));
 372 #else
 373         wfatal(_("a fatal error has occured, probably due to a bug. "
 374                  "Please fill the included BUGFORM and report it."));
 375 #endif /* !NO_EMERGENCY_AUTORESTART */
 376
 377         signal(sig, SIG_DFL);
 378         kill(getpid(), sig);
 379         return;
 380
 381     }
 382
 383     wAbort(dumpcore);
 384 }
 385
 386
 387 static RETSIGTYPE
 388 ignoreSig(int signal)
 389 {
 390     return;
 391 }
 392
 393
 394 static RETSIGTYPE
 395 buryChild(int foo)
 396 {
 397     pid_t pid;
 398     int status;
 399
 400     /* R.I.P. */
 401     /* If 2 or more kids exit in a small time window, before this handler gets
 402      * the chance to get invoked, the SIGCHLD signals will be merged and only
 403      * one SIGCHLD signal will be sent to us. We use a while loop to get all
 404      * exited child status because we can't count on the number of SIGCHLD
 405      * signals to know exactly how many kids have exited. -Dan
 406      */
 407     while ((pid=waitpid(-1, &status, WNOHANG))>0 || (pid<0 && errno==EINTR)) {
 408         NotifyDeadProcess(pid, WEXITSTATUS(status));
 409         /*
 410          * Make sure that the kid will be buried even if there are
 411          * no events in the X event queue
 412          */
 413         if (!WDelayedActionSet) {
 414             WDelayedActionSet = 1;
 415             WMAddIdleHandler(delayedAction, NULL);
 416         }
 417     }
 418 }
 419
 420
 421 static int
 422 getWorkspaceState(Window root, WWorkspaceState **state)
 423 {
 424     Atom type_ret;
 425     int fmt_ret;
 426     unsigned long nitems_ret;
 427     unsigned long bytes_after_ret;
 428     CARD32 *data;
 429
 430     if (XGetWindowProperty(dpy, root, _XA_WINDOWMAKER_STATE, 0, 2,
 431                            True, _XA_WINDOWMAKER_STATE,
 432                            &type_ret, &fmt_ret, &nitems_ret, &bytes_after_ret,
 433                            (unsigned char **)&data)!=Success || !data)
 434       return 0;
 435
 436     *state = malloc(sizeof(WWorkspaceState));
 437     if (*state) {
 438         (*state)->flags = data[0];
 439         (*state)->workspace = data[1];
 440     }
 441     XFree(data);
 442
 443     if (*state && type_ret==_XA_WINDOWMAKER_STATE)
 444       return 1;
 445     else
 446       return 0;
 447 }
 448
 449
 450 static void
 451 getOffendingModifiers()
 452 {
 453     int i;
 454     XModifierKeymap *modmap;
 455     KeyCode nlock, slock;
 456     static int mask_table[8] = {
 457         ShiftMask,LockMask,ControlMask,Mod1Mask,
 458             Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask
 459     };
 460
 461     nlock = XKeysymToKeycode(dpy, XK_Num_Lock);
 462     slock = XKeysymToKeycode(dpy, XK_Scroll_Lock);
 463
 464     /*
 465      * Find out the masks for the NumLock and ScrollLock modifiers,
 466      * so that we can bind the grabs for when they are enabled too.
 467      */
 468     modmap = XGetModifierMapping(dpy);
 469
 470     if (modmap!=NULL && modmap->max_keypermod>0) {
 471         for (i=0; i<8*modmap->max_keypermod; i++) {
 472             if (modmap->modifiermap[i]==nlock && nlock!=0)
 473                 _NumLockMask = mask_table[i/modmap->max_keypermod];
 474             else if (modmap->modifiermap[i]==slock && slock!=0)
 475                 _ScrollLockMask = mask_table[i/modmap->max_keypermod];
 476         }
 477     }
 478
 479     if (modmap)
 480         XFreeModifiermap(modmap);
 481 }
 482
 483
 484
 485 #ifdef NUMLOCK_HACK
 486 void
 487 wHackedGrabKey(int keycode, unsigned int modifiers,
 488                Window grab_window, Bool owner_events, int pointer_mode,
 489                int keyboard_mode)
 490 {
 491     if (modifiers == AnyModifier)
 492         return;
 493
 494     /* grab all combinations of the modifier with CapsLock, NumLock and
 495      * ScrollLock. How much memory/CPU does such a monstrosity consume
 496      * in the server?
 497      */
 498     if (_NumLockMask)
 499         XGrabKey(dpy, keycode, modifiers|_NumLockMask,
 500                  grab_window, owner_events, pointer_mode, keyboard_mode);
 501     if (_ScrollLockMask)
 502         XGrabKey(dpy, keycode, modifiers|_ScrollLockMask,
 503                  grab_window, owner_events, pointer_mode, keyboard_mode);
 504     if (_NumLockMask && _ScrollLockMask)
 505         XGrabKey(dpy, keycode, modifiers|_NumLockMask|_ScrollLockMask,
 506                  grab_window, owner_events, pointer_mode, keyboard_mode);
 507     if (_NumLockMask)
 508         XGrabKey(dpy, keycode, modifiers|_NumLockMask|LockMask,
 509                  grab_window, owner_events, pointer_mode, keyboard_mode);
 510     if (_ScrollLockMask)
 511         XGrabKey(dpy, keycode, modifiers|_ScrollLockMask|LockMask,
 512                  grab_window, owner_events, pointer_mode, keyboard_mode);
 513     if (_NumLockMask && _ScrollLockMask)
 514         XGrabKey(dpy, keycode, modifiers|_NumLockMask|_ScrollLockMask|LockMask,
 515                  grab_window, owner_events, pointer_mode, keyboard_mode);
 516     /* phew, I guess that's all, right? */
 517 }
 518 #endif
 519
 520 void
 521 wHackedGrabButton(unsigned int button, unsigned int modifiers,
 522                   Window grab_window, Bool owner_events,
 523                   unsigned int event_mask, int pointer_mode,
 524                   int keyboard_mode, Window confine_to, Cursor cursor)
 525 {
 526     XGrabButton(dpy, button, modifiers, grab_window, owner_events,
 527                 event_mask, pointer_mode, keyboard_mode, confine_to, cursor);
 528
 529     if (modifiers==AnyModifier)
 530         return;
 531
 532     XGrabButton(dpy, button, modifiers|LockMask, grab_window, owner_events,
 533                 event_mask, pointer_mode, keyboard_mode, confine_to, cursor);
 534
 535 #ifdef NUMLOCK_HACK
 536     /* same as above, but for mouse buttons */
 537     if (_NumLockMask)
 538         XGrabButton(dpy, button, modifiers|_NumLockMask,
 539                     grab_window, owner_events, event_mask, pointer_mode,
 540                 keyboard_mode, confine_to, cursor);
 541     if (_ScrollLockMask)
 542         XGrabButton(dpy, button, modifiers|_ScrollLockMask,
 543                     grab_window, owner_events, event_mask, pointer_mode,
 544                     keyboard_mode, confine_to, cursor);
 545     if (_NumLockMask && _ScrollLockMask)
 546         XGrabButton(dpy, button, modifiers|_ScrollLockMask|_NumLockMask,
 547                     grab_window, owner_events, event_mask, pointer_mode,
 548                     keyboard_mode, confine_to, cursor);
 549     if (_NumLockMask)
 550         XGrabButton(dpy, button, modifiers|_NumLockMask|LockMask,
 551                     grab_window, owner_events, event_mask, pointer_mode,
 552                 keyboard_mode, confine_to, cursor);
 553     if (_ScrollLockMask)
 554         XGrabButton(dpy, button, modifiers|_ScrollLockMask|LockMask,
 555                     grab_window, owner_events, event_mask, pointer_mode,
 556                     keyboard_mode, confine_to, cursor);
 557     if (_NumLockMask && _ScrollLockMask)
 558         XGrabButton(dpy, button, modifiers|_ScrollLockMask|_NumLockMask|LockMask,
 559                     grab_window, owner_events, event_mask, pointer_mode,
 560                     keyboard_mode, confine_to, cursor);
 561 #endif /* NUMLOCK_HACK */
 562 }
 563
 564 #ifdef notused
 565 void
 566 wHackedUngrabButton(unsigned int button, unsigned int modifiers,
 567                     Window grab_window)
 568 {
 569     XUngrabButton(dpy, button, modifiers|_NumLockMask,
 570                   grab_window);
 571     XUngrabButton(dpy, button, modifiers|_ScrollLockMask,
 572                   grab_window);
 573     XUngrabButton(dpy, button, modifiers|_NumLockMask|_ScrollLockMask,
 574                   grab_window);
 575     XUngrabButton(dpy, button, modifiers|_NumLockMask|LockMask,
 576                   grab_window);
 577     XUngrabButton(dpy, button, modifiers|_ScrollLockMask|LockMask,
 578                   grab_window);
 579     XUngrabButton(dpy, button, modifiers|_NumLockMask|_ScrollLockMask|LockMask,
 580                   grab_window);
 581 }
 582 #endif
 583
 584
 585
 586 WScreen*
 587 wScreenWithNumber(int i)
 588 {
 589     assert(i < wScreenCount);
 590
 591     return wScreen[i];
 592 }
 593
 594
 595 WScreen*
 596 wScreenForRootWindow(Window window)
 597 {
 598     int i;
 599
 600     if (wScreenCount==1)
 601         return wScreen[0];
 602
 603     /*
 604      * Since the number of heads will probably be small (normally 2),
 605      * it should be faster to use this than a hash table, because
 606      * of the overhead.
 607      */
 608     for (i=0; i<wScreenCount; i++) {
 609         if (wScreen[i]->root_win == window) {
 610             return wScreen[i];
 611         }
 612     }
 613
 614     assert("bad_root_window" && 0);
 615
 616     return NULL;
 617 }
 618
 619
 620 WScreen*
 621 wScreenSearchForRootWindow(Window window)
 622 {
 623     int i;
 624
 625     if (wScreenCount==1)
 626         return wScreen[0];
 627
 628     /*
 629      * Since the number of heads will probably be small (normally 2),
 630      * it should be faster to use this than a hash table, because
 631      * of the overhead.
 632      */
 633     for (i=0; i<wScreenCount; i++) {
 634         if (wScreen[i]->root_win == window) {
 635             return wScreen[i];
 636         }
 637     }
 638
 639     return NULL;
 640 }
 641
 642
 643 WScreen*
 644 wScreenForWindow(Window window)
 645 {
 646     XWindowAttributes attr;
 647
 648     if (wScreenCount==1)
 649         return wScreen[0];
 650
 651     if (XGetWindowAttributes(dpy, window, &attr)) {
 652         return wScreenForRootWindow(attr.root);
 653     }
 654     return NULL;
 655 }
 656
 657
 658 static char *atomNames[] = {
 659     "WM_STATE",
 660     "WM_CHANGE_STATE",
 661     "WM_PROTOCOLS",
 662     "WM_TAKE_FOCUS",
 663     "WM_DELETE_WINDOW",
 664     "WM_SAVE_YOURSELF",
 665     "WM_CLIENT_LEADER",
 666     "WM_COLORMAP_WINDOWS",
 667     "WM_COLORMAP_NOTIFY",
 668     GNUSTEP_WM_ATTR_NAME,
 669     "_WINDOWMAKER_MENU",
 670     "_WINDOWMAKER_STATE",
 671     "_WINDOWMAKER_WM_PROTOCOLS",
 672     GNUSTEP_WM_MINIATURIZE_WINDOW,
 673     "_WINDOWMAKER_WM_FUNCTION",
 674     "_WINDOWMAKER_NOTICEBOARD",
 675     "_WINDOWMAKER_COMMAND",
 676     "_WINDOWMAKER_ICON_SIZE",
 677     "_WINDOWMAKER_ICON_TILE",
 678     GNUSTEP_TITLEBAR_STATE
 679 };
 680
 681
 682 /*
 683  *----------------------------------------------------------
 684  * StartUp--
 685  *      starts the window manager and setup global data.
 686  * Called from main() at startup.
 687  *
 688  * Side effects:
 689  * global data declared in main.c is initialized
 690  *----------------------------------------------------------
 691  */
 692 void
 693 StartUp(Bool defaultScreenOnly)
 694 {
 695     WWorkspaceState *ws_state;
 696     struct sigaction sig_action;
 697     int j, max;
 698     Atom atom[sizeof(atomNames)/sizeof(char*)];
 699
 700     /*
 701      * Ignore CapsLock in modifiers
 702      */
 703     ValidModMask = 0xff & ~LockMask;
 704
 705     getOffendingModifiers();
 706     /*
 707      * Ignore NumLock and ScrollLock too
 708      */
 709     ValidModMask &= ~(_NumLockMask|_ScrollLockMask);
 710
 711
 712     memset(&wKeyBindings, 0, sizeof(wKeyBindings));
 713
 714     wWinContext = XUniqueContext();
 715     wAppWinContext = XUniqueContext();
 716     wStackContext = XUniqueContext();
 717
 718 /*    _XA_VERSION = XInternAtom(dpy, "VERSION", False);*/
 719
 720 #ifdef HAVE_XINTERNATOMS
 721     XInternAtoms(dpy, atomNames, sizeof(atomNames)/sizeof(char*),
 722                  False, atom);
 723 #else
 724
 725     {
 726         int i;
 727         for (i = 0; i < sizeof(atomNames)/sizeof(char*); i++) {
 728             atom[i] = XInternAtom(dpy, atomNames[i], False);
 729         }
 730     }
 731 #endif
 732
 733     _XA_WM_STATE = atom[0];
 734     _XA_WM_CHANGE_STATE = atom[1];
 735     _XA_WM_PROTOCOLS = atom[2];
 736     _XA_WM_TAKE_FOCUS = atom[3];
 737     _XA_WM_DELETE_WINDOW = atom[4];
 738     _XA_WM_SAVE_YOURSELF = atom[5];
 739     _XA_WM_CLIENT_LEADER = atom[6];
 740     _XA_WM_COLORMAP_WINDOWS = atom[7];
 741     _XA_WM_COLORMAP_NOTIFY = atom[8];
 742
 743     _XA_GNUSTEP_WM_ATTR = atom[9];
 744
 745     _XA_WINDOWMAKER_MENU = atom[10];
 746     _XA_WINDOWMAKER_STATE = atom[11];
 747
 748     _XA_WINDOWMAKER_WM_PROTOCOLS = atom[12];
 749
 750     _XA_GNUSTEP_WM_MINIATURIZE_WINDOW = atom[13];
 751
 752     _XA_WINDOWMAKER_WM_FUNCTION = atom[14];
 753
 754     _XA_WINDOWMAKER_NOTICEBOARD = atom[15];
 755
 756     _XA_WINDOWMAKER_COMMAND = atom[16];
 757
 758     _XA_WINDOWMAKER_ICON_SIZE = atom[17];
 759     _XA_WINDOWMAKER_ICON_TILE = atom[18];
 760
 761     _XA_GNUSTEP_TITLEBAR_STATE = atom[19];
 762
 763 #ifdef OFFIX_DND
 764     _XA_DND_SELECTION = XInternAtom(dpy, "DndSelection", False);
 765     _XA_DND_PROTOCOL = XInternAtom(dpy, "DndProtocol", False);
 766 #endif
 767 #ifdef XDND
 768     wXDNDInitializeAtoms();
 769 #endif
 770
 771
 772     /* cursors */
 773 #ifdef DEFINABLE_CURSOR
 774     wCursor[WCUR_NORMAL] = None;
 775 #else
 776     wCursor[WCUR_NORMAL] = XCreateFontCursor(dpy, XC_left_ptr);
 777 #endif
 778     wCursor[WCUR_ROOT] = XCreateFontCursor(dpy, XC_left_ptr);
 779     wCursor[WCUR_ARROW] = XCreateFontCursor(dpy, XC_top_left_arrow);
 780     wCursor[WCUR_MOVE] = XCreateFontCursor(dpy, XC_fleur);
 781     wCursor[WCUR_RESIZE] = XCreateFontCursor(dpy, XC_sizing);
 782     wCursor[WCUR_TOPLEFTRESIZE] = XCreateFontCursor(dpy, XC_top_left_corner);
 783     wCursor[WCUR_TOPRIGHTRESIZE] = XCreateFontCursor(dpy, XC_top_right_corner);
 784     wCursor[WCUR_BOTTOMLEFTRESIZE] = XCreateFontCursor(dpy, XC_bottom_left_corner);
 785     wCursor[WCUR_BOTTOMRIGHTRESIZE] = XCreateFontCursor(dpy, XC_bottom_right_corner);
 786     wCursor[WCUR_VERTICALRESIZE] = XCreateFontCursor(dpy, XC_sb_v_double_arrow);
 787     wCursor[WCUR_HORIZONRESIZE] = XCreateFontCursor(dpy, XC_sb_h_double_arrow);
 788     wCursor[WCUR_WAIT] = XCreateFontCursor(dpy, XC_watch);
 789     wCursor[WCUR_QUESTION] = XCreateFontCursor(dpy, XC_question_arrow);
 790     wCursor[WCUR_TEXT]     = XCreateFontCursor(dpy, XC_xterm); /* odd name???*/
 791     wCursor[WCUR_SELECT] = XCreateFontCursor(dpy, XC_cross);
 792
 793     /* emergency exit... */
 794     sig_action.sa_handler = handleSig;
 795     sigemptyset(&sig_action.sa_mask);
 796
 797     /* Here we don't care about SA_RESTART since these signals will close
 798      * wmaker anyway.
 799      * -Dan */
 800     sig_action.sa_flags = 0;
 801     sigaction(SIGINT, &sig_action, NULL);
 802     sigaction(SIGTERM, &sig_action, NULL);
 803     sigaction(SIGHUP, &sig_action, NULL);
 804     sigaction(SIGQUIT, &sig_action, NULL);
 805     sigaction(SIGSEGV, &sig_action, NULL);
 806     sigaction(SIGBUS, &sig_action, NULL);
 807     sigaction(SIGFPE, &sig_action, NULL);
 808     sigaction(SIGABRT, &sig_action, NULL);
 809
 810     /* Here we set SA_RESTART for safety, because SIGUSR1 may not be handled
 811      * immediately.
 812      * -Dan */
 813     sig_action.sa_flags = SA_RESTART;
 814     sigaction(SIGUSR1, &sig_action, NULL);
 815     sigaction(SIGUSR2, &sig_action, NULL);
 816
 817     /* ignore dead pipe */
 818     sig_action.sa_handler = ignoreSig;
 819     sig_action.sa_flags = SA_RESTART;
 820     sigaction(SIGPIPE, &sig_action, NULL);
 821
 822     /* handle dead children */
 823     sig_action.sa_handler = buryChild;
 824     sig_action.sa_flags = SA_NOCLDSTOP|SA_RESTART;
 825     sigaction(SIGCHLD, &sig_action, NULL);
 826
 827     /* Now we unblock all signals, that may have been blocked by the parent
 828      * who exec()-ed us. This can happen for example if Window Maker crashes
 829      * and restarts itself or another window manager from the signal handler.
 830      * In this case, the new proccess inherits the blocked signal mask and
 831      * will no longer react to that signal, until unblocked.
 832      * This is because the signal handler of the proccess who crashed (parent)
 833      * didn't return, and the signal remained blocked. -Dan
 834      */
 835     sigfillset(&sig_action.sa_mask);
 836     sigprocmask(SIG_UNBLOCK, &sig_action.sa_mask, NULL);
 837
 838     /* handle X shutdowns a such */
 839     XSetIOErrorHandler(handleXIO);
 840
 841     /* set hook for out event dispatcher in WINGs event dispatcher */
 842     WMHookEventHandler(DispatchEvent);
 843
 844     /* initialize defaults stuff */
 845     WDWindowMaker = wDefaultsInitDomain("WindowMaker", True);
 846     if (!WDWindowMaker->dictionary) {
 847         wwarning(_("could not read domain \"%s\" from defaults database"),
 848                  "WindowMaker");
 849     }
 850
 851     /* read defaults that don't change until a restart and are
 852      * screen independent */
 853     wReadStaticDefaults(WDWindowMaker ? WDWindowMaker->dictionary : NULL);
 854
 855     /* check sanity of some values */
 856     if (wPreferences.icon_size < 16) {
 857         wwarning(_("icon size is configured to %i, but it's too small. Using 16, instead\n"),
 858                  wPreferences.icon_size);
 859         wPreferences.icon_size = 16;
 860     }
 861
 862     /* init other domains */
 863     WDRootMenu = wDefaultsInitDomain("WMRootMenu", False);
 864     if (!WDRootMenu->dictionary) {
 865         wwarning(_("could not read domain \"%s\" from defaults database"),
 866                  "WMRootMenu");
 867     }
 868
 869     WDWindowAttributes = wDefaultsInitDomain("WMWindowAttributes", True);
 870     if (!WDWindowAttributes->dictionary) {
 871         wwarning(_("could not read domain \"%s\" from defaults database"),
 872                  "WMWindowAttributes");
 873     }
 874
 875     XSetErrorHandler((XErrorHandler)catchXError);
 876
 877 #ifdef SHAPE
 878     /* ignore j */
 879     wShapeSupported = XShapeQueryExtension(dpy, &wShapeEventBase, &j);
 880 #endif
 881
 882 #ifdef KEEP_XKB_LOCK_STATUS
 883     wXkbSupported = XkbQueryExtension(dpy, NULL, &wXkbEventBase, NULL, NULL, NULL);
 884     if(wPreferences.modelock && !wXkbSupported) {
 885         wwarning(_("XKB is not supported. KbdModeLock is automatically disabled."));
 886         wPreferences.modelock = 0;
 887     }
 888 #endif
 889
 890     if (defaultScreenOnly) {
 891         max = 1;
 892     } else {
 893         max = ScreenCount(dpy);
 894     }
 895     wScreen = wmalloc(sizeof(WScreen*)*max);
 896
 897     wScreenCount = 0;
 898
 899     /* manage the screens */
 900     for (j = 0; j < max; j++) {
 901         if (defaultScreenOnly || max==1) {
 902             wScreen[wScreenCount] = wScreenInit(DefaultScreen(dpy));
 903             if (!wScreen[wScreenCount]) {
 904                 wfatal(_("it seems that there is already a window manager running"));
 905                 Exit(1);
 906             }
 907         } else {
 908             wScreen[wScreenCount] = wScreenInit(j);
 909             if (!wScreen[wScreenCount]) {
 910                 wwarning(_("could not manage screen %i"), j);
 911                 continue;
 912             }
 913         }
 914         wScreenCount++;
 915     }
 916
 917     /* initialize/restore state for the screens */
 918     for (j = 0; j < wScreenCount; j++) {
 919         /* restore workspace state */
 920         if (!getWorkspaceState(wScreen[j]->root_win, &ws_state)) {
 921             ws_state = NULL;
 922         }
 923
 924         wScreenRestoreState(wScreen[j]);
 925
 926         /* manage all windows that were already here before us */
 927         if (!wPreferences.flags.nodock && wScreen[j]->dock)
 928             wScreen[j]->last_dock = wScreen[j]->dock;
 929
 930         manageAllWindows(wScreen[j]);
 931
 932         /* restore saved menus */
 933         wMenuRestoreState(wScreen[j]);
 934
 935         /* If we're not restarting restore session */
 936         if (ws_state == NULL && !wPreferences.flags.norestore)
 937             wSessionRestoreState(wScreen[j]);
 938
 939         if (!wPreferences.flags.noautolaunch) {
 940             /* auto-launch apps */
 941             if (!wPreferences.flags.nodock && wScreen[j]->dock) {
 942                 wScreen[j]->last_dock = wScreen[j]->dock;
 943                 wDockDoAutoLaunch(wScreen[j]->dock, 0);
 944             }
 945             /* auto-launch apps in clip */
 946             if (!wPreferences.flags.noclip) {
 947                 int i;
 948                 for(i=0; i<wScreen[j]->workspace_count; i++) {
 949                     if (wScreen[j]->workspaces[i]->clip) {
 950                         wScreen[j]->last_dock = wScreen[j]->workspaces[i]->clip;
 951                         wDockDoAutoLaunch(wScreen[j]->workspaces[i]->clip, i);
 952                     }
 953                 }
 954             }
 955         }
 956
 957         /* go to workspace where we were before restart */
 958         if (ws_state) {
 959             wWorkspaceForceChange(wScreen[j], ws_state->workspace);
 960             wfree(ws_state);
 961         } else {
 962             wSessionRestoreLastWorkspace(wScreen[j]);
 963         }
 964
 965 #ifdef KWM_HINTS
 966         wKWMSetInitializedHint(wScreen[j]);
 967 #endif
 968     }
 969
 970     if (wScreenCount == 0) {
 971         wfatal(_("could not manage any screen"));
 972         Exit(1);
 973     }
 974
 975     if (!wPreferences.flags.nopolling && !wPreferences.flags.noupdates) {
 976         /* setup defaults file polling */
 977         WMAddTimerHandler(3000, wDefaultsCheckDomains, NULL);
 978     }
 979 }
 980
 981
 982
 983
 984 static Bool
 985 windowInList(Window window, Window *list, int count)
 986 {
 987     for (; count>=0; count--) {
 988         if (window == list[count])
 989             return True;
 990     }
 991     return False;
 992 }
 993
 994 /*
 995  *-----------------------------------------------------------------------
 996  * manageAllWindows--
 997  *      Manages all windows in the screen.
 998  *
 999  * Notes:
1000  *      Called when the wm is being started.
1001  *      No events can be processed while the windows are being
1002  * reparented/managed.
1003  *-----------------------------------------------------------------------
1004  */
1005 static void
1006 manageAllWindows(WScreen *scr)
1007 {
1008     Window root, parent;
1009     Window *children;
1010     unsigned int nchildren;
1011     unsigned int i, j;
1012     WWindow *wwin;
1013
1014     XGrabServer(dpy);
1015     XQueryTree(dpy, scr->root_win, &root, &parent, &children, &nchildren);
1016
1017     scr->flags.startup = 1;
1018
1019     /* first remove all icon windows */
1020     for (i = 0; i < nchildren; i++) {
1021         XWMHints *wmhints;
1022
1023         if (children[i]==None)
1024             continue;
1025
1026         wmhints = XGetWMHints(dpy, children[i]);
1027         if (wmhints && (wmhints->flags & IconWindowHint)) {
1028             for (j = 0; j < nchildren; j++)  {
1029                 if (children[j] == wmhints->icon_window) {
1030                     XFree(wmhints);
1031                     wmhints = NULL;
1032                     children[j] = None;
1033                     break;
1034                 }
1035             }
1036         }
1037         if (wmhints) {
1038             XFree(wmhints);
1039         }
1040     }
1041
1042
1043     for (i = 0; i < nchildren; i++) {
1044         if (children[i] == None)
1045             continue;
1046
1047 #ifdef KWM_HINTS
1048         wKWMCheckModule(scr, children[i]);
1049 #endif
1050         wwin = wManageWindow(scr, children[i]);
1051         if (wwin) {
1052             /* apply states got from WSavedState */
1053             /* shaded + minimized is not restored correctly */
1054             if (wwin->flags.shaded) {
1055                 wwin->flags.shaded = 0;
1056                 wShadeWindow(wwin);
1057             }
1058             if (wwin->flags.miniaturized
1059                 && (wwin->transient_for == None
1060                     || wwin->transient_for == scr->root_win
1061                     || !windowInList(wwin->transient_for, children,
1062                                      nchildren))) {
1063
1064                 wwin->flags.skip_next_animation = 1;
1065                 wwin->flags.miniaturized = 0;
1066                 wIconifyWindow(wwin);
1067             } else {
1068                 wClientSetState(wwin, NormalState, None);
1069             }
1070         }
1071     }
1072     XUngrabServer(dpy);
1073
1074     /* hide apps */
1075     wwin = scr->focused_window;
1076     while (wwin) {
1077         if (wwin->flags.hidden) {
1078             WApplication *wapp = wApplicationOf(wwin->main_window);
1079
1080             if (wapp) {
1081                 wwin->flags.hidden = 0;
1082                 wHideApplication(wapp);
1083             } else {
1084                 wwin->flags.hidden = 0;
1085             }
1086         }
1087         wwin = wwin->prev;
1088     }
1089
1090     XFree(children);
1091     scr->flags.startup = 0;
1092     scr->flags.startup2 = 1;
1093
1094     while (XPending(dpy)) {
1095         XEvent ev;
1096         WMNextEvent(dpy, &ev);
1097         WMHandleEvent(&ev);
1098     }
1099     wWorkspaceForceChange(scr, 0);
1100     if (!wPreferences.flags.noclip)
1101         wDockShowIcons(scr->workspaces[scr->current_workspace]->clip);
1102     scr->flags.startup2 = 0;
1103 }
1104
1105
1106