src/startup.c

   1 /*
   2  *  Window Maker window manager
   3  *
   4  *  Copyright (c) 1997-2003 Alfredo K. Kojima
   5  *  Copyright (c) 1998-2003 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 <string.h>
  29 #include <errno.h>
  30 #include <signal.h>
  31 #include <sys/wait.h>
  32 #ifdef __FreeBSD__
  33 #include <sys/signal.h>
  34 #endif
  35
  36 #include <X11/Xlib.h>
  37 #include <X11/Xresource.h>
  38 #include <X11/Xutil.h>
  39 #include <X11/cursorfont.h>
  40 #include <X11/Xproto.h>
  41 #include <X11/keysym.h>
  42 #ifdef SHAPE
  43 #include <X11/extensions/shape.h>
  44 #endif
  45
  46 #include "WindowMaker.h"
  47 #include "GNUstep.h"
  48 #include "texture.h"
  49 #include "screen.h"
  50 #include "window.h"
  51 #include "actions.h"
  52 #include "client.h"
  53 #include "funcs.h"
  54 #include "dock.h"
  55 #include "workspace.h"
  56 #include "keybind.h"
  57 #include "framewin.h"
  58 #include "session.h"
  59 #include "defaults.h"
  60 #include "properties.h"
  61 #include "dialog.h"
  62 #include "wmspec.h"
  63 #ifdef XDND
  64 #include "xdnd.h"
  65 #endif
  66
  67 #include "xutil.h"
  68
  69 #if 0
  70 #ifdef SYS_SIGLIST_DECLARED
  71 extern const char *const sys_siglist[];
  72 #endif
  73 #endif
  74
  75 /* for SunOS */
  76 #ifndef SA_RESTART
  77 # define SA_RESTART 0
  78 #endif
  79
  80 /* Just in case, for weirdo systems */
  81 #ifndef SA_NODEFER
  82 # define SA_NODEFER 0
  83 #endif
  84
  85 /****** Global Variables ******/
  86
  87 extern WPreferences wPreferences;
  88
  89 extern WDDomain *WDWindowMaker;
  90 extern WDDomain *WDRootMenu;
  91 extern WDDomain *WDWindowAttributes;
  92
  93 extern WShortKey wKeyBindings[WKBD_LAST];
  94
  95 extern int wScreenCount;
  96
  97 #ifdef SHAPE
  98 extern Bool wShapeSupported;
  99 extern int wShapeEventBase;
 100 #endif
 101
 102 #ifdef KEEP_XKB_LOCK_STATUS
 103 extern Bool wXkbSupported;
 104 extern int wXkbEventBase;
 105 #endif
 106
 107 /* contexts */
 108 extern XContext wWinContext;
 109 extern XContext wAppWinContext;
 110 extern XContext wStackContext;
 111 extern XContext wVEdgeContext;
 112
 113 /* atoms */
 114 extern Atom _XA_WM_STATE;
 115 extern Atom _XA_WM_CHANGE_STATE;
 116 extern Atom _XA_WM_PROTOCOLS;
 117 extern Atom _XA_WM_TAKE_FOCUS;
 118 extern Atom _XA_WM_DELETE_WINDOW;
 119 extern Atom _XA_WM_SAVE_YOURSELF;
 120 extern Atom _XA_WM_CLIENT_LEADER;
 121 extern Atom _XA_WM_COLORMAP_WINDOWS;
 122 extern Atom _XA_WM_COLORMAP_NOTIFY;
 123
 124 extern Atom _XA_GNUSTEP_WM_ATTR;
 125
 126 extern Atom _XA_WINDOWMAKER_MENU;
 127 extern Atom _XA_WINDOWMAKER_WM_PROTOCOLS;
 128 extern Atom _XA_WINDOWMAKER_STATE;
 129 extern Atom _XA_WINDOWMAKER_WM_FUNCTION;
 130 extern Atom _XA_WINDOWMAKER_NOTICEBOARD;
 131 extern Atom _XA_WINDOWMAKER_COMMAND;
 132 extern Atom _XA_WINDOWMAKER_ICON_SIZE;
 133 extern Atom _XA_WINDOWMAKER_ICON_TILE;
 134
 135 extern Atom _XA_GNUSTEP_WM_MINIATURIZE_WINDOW;
 136 extern Atom _XA_GNUSTEP_TITLEBAR_STATE;
 137
 138 /* cursors */
 139 extern Cursor wCursor[WCUR_LAST];
 140
 141 /* special flags */
 142 /*extern char WDelayedActionSet;*/
 143
 144 /***** Local *****/
 145
 146 static WScreen **wScreen = NULL;
 147
 148 static unsigned int _NumLockMask = 0;
 149 static unsigned int _ScrollLockMask = 0;
 150
 151 static void manageAllWindows(WScreen * scr, int crashed);
 152
 153 extern void NotifyDeadProcess(pid_t pid, unsigned char status);
 154
 155 static int catchXError(Display * dpy, XErrorEvent * error)
 156 {
 157         char buffer[MAXLINE];
 158
 159         /* ignore some errors */
 160         if (error->resourceid != None
 161             && ((error->error_code == BadDrawable && error->request_code == X_GetGeometry)
 162                 || (error->error_code == BadMatch && (error->request_code == X_SetInputFocus))
 163                 || (error->error_code == BadWindow)
 164                 /*
 165                    && (error->request_code == X_GetWindowAttributes
 166                    || error->request_code == X_SetInputFocus
 167                    || error->request_code == X_ChangeWindowAttributes
 168                    || error->request_code == X_GetProperty
 169                    || error->request_code == X_ChangeProperty
 170                    || error->request_code == X_QueryTree
 171                    || error->request_code == X_GrabButton
 172                    || error->request_code == X_UngrabButton
 173                    || error->request_code == X_SendEvent
 174                    || error->request_code == X_ConfigureWindow))
 175                  */
 176                 || (error->request_code == X_InstallColormap))) {
 177 #ifndef DEBUG
 178
 179                 return 0;
 180 #else
 181                 printf("got X error %x %x %x\n", error->request_code,
 182                        error->error_code, (unsigned)error->resourceid);
 183                 return 0;
 184 #endif
 185         }
 186         FormatXError(dpy, error, buffer, MAXLINE);
 187         wwarning(_("internal X error: %s\n"), buffer);
 188         return -1;
 189 }
 190
 191 /*
 192  *----------------------------------------------------------------------
 193  * handleXIO-
 194  *      Handle X shutdowns and other stuff.
 195  *----------------------------------------------------------------------
 196  */
 197 static int handleXIO(Display * xio_dpy)
 198 {
 199         dpy = NULL;
 200         Exit(0);
 201         return 0;
 202 }
 203
 204 /*
 205  *----------------------------------------------------------------------
 206  * delayedAction-
 207  *      Action to be executed after the signal() handler is exited.
 208  * This was called every 500ms to 'clean up' signals. Not used now.
 209  *----------------------------------------------------------------------
 210  */
 211 #ifdef notused
 212 static void delayedAction(void *cdata)
 213 {
 214         if (WDelayedActionSet == 0) {
 215                 return;
 216         }
 217         WDelayedActionSet--;
 218         /*
 219          * Make the event dispatcher do whatever it needs to do,
 220          * including handling zombie processes, restart and exit
 221          * signals.
 222          */
 223         DispatchEvent(NULL);
 224 }
 225 #endif
 226
 227 /*
 228  *----------------------------------------------------------------------
 229  * handleExitSig--
 230  *      User generated exit signal handler.
 231  *----------------------------------------------------------------------
 232  */
 233 static RETSIGTYPE handleExitSig(int sig)
 234 {
 235         sigset_t sigs;
 236
 237         sigfillset(&sigs);
 238         sigprocmask(SIG_BLOCK, &sigs, NULL);
 239
 240         if (sig == SIGUSR1) {
 241 #ifdef SYS_SIGLIST_DECLARED
 242                 wwarning("got signal %i (%s) - restarting\n", sig, sys_siglist[sig]);
 243 #else
 244                 wwarning("got signal %i - restarting\n", sig);
 245 #endif
 246
 247                 SIG_WCHANGE_STATE(WSTATE_NEED_RESTART);
 248
 249         } else if (sig == SIGUSR2) {
 250 #ifdef SYS_SIGLIST_DECLARED
 251                 wwarning("got signal %i (%s) - rereading defaults\n", sig, sys_siglist[sig]);
 252 #else
 253                 wwarning("got signal %i - rereading defaults\n", sig);
 254 #endif
 255
 256                 SIG_WCHANGE_STATE(WSTATE_NEED_REREAD);
 257
 258         } else if (sig == SIGTERM || sig == SIGINT || sig == SIGHUP) {
 259 #ifdef SYS_SIGLIST_DECLARED
 260                 wwarning("got signal %i (%s) - exiting...\n", sig, sys_siglist[sig]);
 261 #else
 262                 wwarning("got signal %i - exiting...\n", sig);
 263 #endif
 264
 265                 SIG_WCHANGE_STATE(WSTATE_NEED_EXIT);
 266
 267         }
 268
 269         sigprocmask(SIG_UNBLOCK, &sigs, NULL);
 270         DispatchEvent(NULL);    /* Dispatch events imediately. */
 271 }
 272
 273 /* Dummy signal handler */
 274 static void dummyHandler(int sig)
 275 {
 276 }
 277
 278 /*
 279  *----------------------------------------------------------------------
 280  * handleSig--
 281  *      general signal handler. Exits the program gently.
 282  *----------------------------------------------------------------------
 283  */
 284 static RETSIGTYPE handleSig(int sig)
 285 {
 286 #ifdef SYS_SIGLIST_DECLARED
 287         wfatal("got signal %i (%s)\n", sig, sys_siglist[sig]);
 288 #else
 289         wfatal("got signal %i\n", sig);
 290 #endif
 291
 292         /* Setting the signal behaviour back to default and then reraising the
 293          * signal is a cleaner way to make program exit and core dump than calling
 294          * abort(), since it correctly returns from the signal handler and sets
 295          * the flags accordingly. -Dan
 296          */
 297         if (sig == SIGSEGV || sig == SIGFPE || sig == SIGBUS || sig == SIGILL || sig == SIGABRT) {
 298                 signal(sig, SIG_DFL);
 299                 kill(getpid(), sig);
 300                 return;
 301         }
 302
 303         wAbort(0);
 304 }
 305
 306 static RETSIGTYPE buryChild(int foo)
 307 {
 308         pid_t pid;
 309         int status;
 310         int save_errno = errno;
 311         sigset_t sigs;
 312
 313         sigfillset(&sigs);
 314         /* Block signals so that NotifyDeadProcess() doesn't get fux0red */
 315         sigprocmask(SIG_BLOCK, &sigs, NULL);
 316
 317         /* R.I.P. */
 318         /* If 2 or more kids exit in a small time window, before this handler gets
 319          * the chance to get invoked, the SIGCHLD signals will be merged and only
 320          * one SIGCHLD signal will be sent to us. We use a while loop to get all
 321          * exited child status because we can't count on the number of SIGCHLD
 322          * signals to know exactly how many kids have exited. -Dan
 323          */
 324         while ((pid = waitpid(-1, &status, WNOHANG)) > 0 || (pid < 0 && errno == EINTR)) {
 325                 NotifyDeadProcess(pid, WEXITSTATUS(status));
 326         }
 327
 328         sigprocmask(SIG_UNBLOCK, &sigs, NULL);
 329
 330         errno = save_errno;
 331 }
 332
 333 static void getOffendingModifiers()
 334 {
 335         int i;
 336         XModifierKeymap *modmap;
 337         KeyCode nlock, slock;
 338         static int mask_table[8] = {
 339                 ShiftMask, LockMask, ControlMask, Mod1Mask,
 340                 Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask
 341         };
 342
 343         nlock = XKeysymToKeycode(dpy, XK_Num_Lock);
 344         slock = XKeysymToKeycode(dpy, XK_Scroll_Lock);
 345
 346         /*
 347          * Find out the masks for the NumLock and ScrollLock modifiers,
 348          * so that we can bind the grabs for when they are enabled too.
 349          */
 350         modmap = XGetModifierMapping(dpy);
 351
 352         if (modmap != NULL && modmap->max_keypermod > 0) {
 353                 for (i = 0; i < 8 * modmap->max_keypermod; i++) {
 354                         if (modmap->modifiermap[i] == nlock && nlock != 0)
 355                                 _NumLockMask = mask_table[i / modmap->max_keypermod];
 356                         else if (modmap->modifiermap[i] == slock && slock != 0)
 357                                 _ScrollLockMask = mask_table[i / modmap->max_keypermod];
 358                 }
 359         }
 360
 361         if (modmap)
 362                 XFreeModifiermap(modmap);
 363 }
 364
 365 #ifdef NUMLOCK_HACK
 366 void
 367 wHackedGrabKey(int keycode, unsigned int modifiers,
 368                Window grab_window, Bool owner_events, int pointer_mode, int keyboard_mode)
 369 {
 370         if (modifiers == AnyModifier)
 371                 return;
 372
 373         /* grab all combinations of the modifier with CapsLock, NumLock and
 374          * ScrollLock. How much memory/CPU does such a monstrosity consume
 375          * in the server?
 376          */
 377         if (_NumLockMask)
 378                 XGrabKey(dpy, keycode, modifiers | _NumLockMask,
 379                          grab_window, owner_events, pointer_mode, keyboard_mode);
 380         if (_ScrollLockMask)
 381                 XGrabKey(dpy, keycode, modifiers | _ScrollLockMask,
 382                          grab_window, owner_events, pointer_mode, keyboard_mode);
 383         if (_NumLockMask && _ScrollLockMask)
 384                 XGrabKey(dpy, keycode, modifiers | _NumLockMask | _ScrollLockMask,
 385                          grab_window, owner_events, pointer_mode, keyboard_mode);
 386         if (_NumLockMask)
 387                 XGrabKey(dpy, keycode, modifiers | _NumLockMask | LockMask,
 388                          grab_window, owner_events, pointer_mode, keyboard_mode);
 389         if (_ScrollLockMask)
 390                 XGrabKey(dpy, keycode, modifiers | _ScrollLockMask | LockMask,
 391                          grab_window, owner_events, pointer_mode, keyboard_mode);
 392         if (_NumLockMask && _ScrollLockMask)
 393                 XGrabKey(dpy, keycode, modifiers | _NumLockMask | _ScrollLockMask | LockMask,
 394                          grab_window, owner_events, pointer_mode, keyboard_mode);
 395         /* phew, I guess that's all, right? */
 396 }
 397 #endif
 398
 399 void
 400 wHackedGrabButton(unsigned int button, unsigned int modifiers,
 401                   Window grab_window, Bool owner_events,
 402                   unsigned int event_mask, int pointer_mode, int keyboard_mode, Window confine_to, Cursor cursor)
 403 {
 404         XGrabButton(dpy, button, modifiers, grab_window, owner_events,
 405                     event_mask, pointer_mode, keyboard_mode, confine_to, cursor);
 406
 407         if (modifiers == AnyModifier)
 408                 return;
 409
 410         XGrabButton(dpy, button, modifiers | LockMask, grab_window, owner_events,
 411                     event_mask, pointer_mode, keyboard_mode, confine_to, cursor);
 412
 413 #ifdef NUMLOCK_HACK
 414         /* same as above, but for mouse buttons */
 415         if (_NumLockMask)
 416                 XGrabButton(dpy, button, modifiers | _NumLockMask,
 417                             grab_window, owner_events, event_mask, pointer_mode,
 418                             keyboard_mode, confine_to, cursor);
 419         if (_ScrollLockMask)
 420                 XGrabButton(dpy, button, modifiers | _ScrollLockMask,
 421                             grab_window, owner_events, event_mask, pointer_mode,
 422                             keyboard_mode, confine_to, cursor);
 423         if (_NumLockMask && _ScrollLockMask)
 424                 XGrabButton(dpy, button, modifiers | _ScrollLockMask | _NumLockMask,
 425                             grab_window, owner_events, event_mask, pointer_mode,
 426                             keyboard_mode, confine_to, cursor);
 427         if (_NumLockMask)
 428                 XGrabButton(dpy, button, modifiers | _NumLockMask | LockMask,
 429                             grab_window, owner_events, event_mask, pointer_mode,
 430                             keyboard_mode, confine_to, cursor);
 431         if (_ScrollLockMask)
 432                 XGrabButton(dpy, button, modifiers | _ScrollLockMask | LockMask,
 433                             grab_window, owner_events, event_mask, pointer_mode,
 434                             keyboard_mode, confine_to, cursor);
 435         if (_NumLockMask && _ScrollLockMask)
 436                 XGrabButton(dpy, button, modifiers | _ScrollLockMask | _NumLockMask | LockMask,
 437                             grab_window, owner_events, event_mask, pointer_mode,
 438                             keyboard_mode, confine_to, cursor);
 439 #endif                          /* NUMLOCK_HACK */
 440 }
 441
 442 #ifdef notused
 443 void wHackedUngrabButton(unsigned int button, unsigned int modifiers, Window grab_window)
 444 {
 445         XUngrabButton(dpy, button, modifiers | _NumLockMask, grab_window);
 446         XUngrabButton(dpy, button, modifiers | _ScrollLockMask, grab_window);
 447         XUngrabButton(dpy, button, modifiers | _NumLockMask | _ScrollLockMask, grab_window);
 448         XUngrabButton(dpy, button, modifiers | _NumLockMask | LockMask, grab_window);
 449         XUngrabButton(dpy, button, modifiers | _ScrollLockMask | LockMask, grab_window);
 450         XUngrabButton(dpy, button, modifiers | _NumLockMask | _ScrollLockMask | LockMask, grab_window);
 451 }
 452 #endif
 453
 454 WScreen *wScreenWithNumber(int i)
 455 {
 456         assert(i < wScreenCount);
 457
 458         return wScreen[i];
 459 }
 460
 461 WScreen *wScreenForRootWindow(Window window)
 462 {
 463         int i;
 464
 465         if (wScreenCount == 1)
 466                 return wScreen[0];
 467
 468         /*
 469          * Since the number of heads will probably be small (normally 2),
 470          * it should be faster to use this than a hash table, because
 471          * of the overhead.
 472          */
 473         for (i = 0; i < wScreenCount; i++) {
 474                 if (wScreen[i]->root_win == window) {
 475                         return wScreen[i];
 476                 }
 477         }
 478
 479         return wScreenForWindow(window);
 480 }
 481
 482 WScreen *wScreenSearchForRootWindow(Window window)
 483 {
 484         int i;
 485
 486         if (wScreenCount == 1)
 487                 return wScreen[0];
 488
 489         /*
 490          * Since the number of heads will probably be small (normally 2),
 491          * it should be faster to use this than a hash table, because
 492          * of the overhead.
 493          */
 494         for (i = 0; i < wScreenCount; i++) {
 495                 if (wScreen[i]->root_win == window) {
 496                         return wScreen[i];
 497                 }
 498         }
 499
 500         return wScreenForWindow(window);
 501 }
 502
 503 WScreen *wScreenForWindow(Window window)
 504 {
 505         XWindowAttributes attr;
 506
 507         if (wScreenCount == 1)
 508                 return wScreen[0];
 509
 510         if (XGetWindowAttributes(dpy, window, &attr)) {
 511                 return wScreenForRootWindow(attr.root);
 512         }
 513         return NULL;
 514 }
 515
 516 static char *atomNames[] = {
 517         "WM_STATE",
 518         "WM_CHANGE_STATE",
 519         "WM_PROTOCOLS",
 520         "WM_TAKE_FOCUS",
 521         "WM_DELETE_WINDOW",
 522         "WM_SAVE_YOURSELF",
 523         "WM_CLIENT_LEADER",
 524         "WM_COLORMAP_WINDOWS",
 525         "WM_COLORMAP_NOTIFY",
 526
 527         "_WINDOWMAKER_MENU",
 528         "_WINDOWMAKER_STATE",
 529         "_WINDOWMAKER_WM_PROTOCOLS",
 530         "_WINDOWMAKER_WM_FUNCTION",
 531         "_WINDOWMAKER_NOTICEBOARD",
 532         "_WINDOWMAKER_COMMAND",
 533         "_WINDOWMAKER_ICON_SIZE",
 534         "_WINDOWMAKER_ICON_TILE",
 535
 536         GNUSTEP_WM_ATTR_NAME,
 537         GNUSTEP_WM_MINIATURIZE_WINDOW,
 538         GNUSTEP_TITLEBAR_STATE
 539 };
 540
 541 /*
 542  *----------------------------------------------------------
 543  * StartUp--
 544  *      starts the window manager and setup global data.
 545  * Called from main() at startup.
 546  *
 547  * Side effects:
 548  * global data declared in main.c is initialized
 549  *----------------------------------------------------------
 550  */
 551 void StartUp(Bool defaultScreenOnly)
 552 {
 553         struct sigaction sig_action;
 554         int j, max;
 555         Atom atom[sizeof(atomNames) / sizeof(char *)];
 556
 557         /*
 558          * Ignore CapsLock in modifiers
 559          */
 560         ValidModMask = 0xff & ~LockMask;
 561
 562         getOffendingModifiers();
 563         /*
 564          * Ignore NumLock and ScrollLock too
 565          */
 566         ValidModMask &= ~(_NumLockMask | _ScrollLockMask);
 567
 568         memset(&wKeyBindings, 0, sizeof(wKeyBindings));
 569
 570         wWinContext = XUniqueContext();
 571         wAppWinContext = XUniqueContext();
 572         wStackContext = XUniqueContext();
 573         wVEdgeContext = XUniqueContext();
 574
 575         /*    _XA_VERSION = XInternAtom(dpy, "VERSION", False); */
 576
 577 #ifdef HAVE_XINTERNATOMS
 578         XInternAtoms(dpy, atomNames, sizeof(atomNames) / sizeof(char *), False, atom);
 579 #else
 580
 581         {
 582                 int i;
 583                 for (i = 0; i < sizeof(atomNames) / sizeof(char *); i++) {
 584                         atom[i] = XInternAtom(dpy, atomNames[i], False);
 585                 }
 586         }
 587 #endif
 588
 589         _XA_WM_STATE = atom[0];
 590         _XA_WM_CHANGE_STATE = atom[1];
 591         _XA_WM_PROTOCOLS = atom[2];
 592         _XA_WM_TAKE_FOCUS = atom[3];
 593         _XA_WM_DELETE_WINDOW = atom[4];
 594         _XA_WM_SAVE_YOURSELF = atom[5];
 595         _XA_WM_CLIENT_LEADER = atom[6];
 596         _XA_WM_COLORMAP_WINDOWS = atom[7];
 597         _XA_WM_COLORMAP_NOTIFY = atom[8];
 598
 599         _XA_WINDOWMAKER_MENU = atom[9];
 600         _XA_WINDOWMAKER_STATE = atom[10];
 601         _XA_WINDOWMAKER_WM_PROTOCOLS = atom[11];
 602         _XA_WINDOWMAKER_WM_FUNCTION = atom[12];
 603         _XA_WINDOWMAKER_NOTICEBOARD = atom[13];
 604         _XA_WINDOWMAKER_COMMAND = atom[14];
 605         _XA_WINDOWMAKER_ICON_SIZE = atom[15];
 606         _XA_WINDOWMAKER_ICON_TILE = atom[16];
 607
 608         _XA_GNUSTEP_WM_ATTR = atom[17];
 609         _XA_GNUSTEP_WM_MINIATURIZE_WINDOW = atom[18];
 610         _XA_GNUSTEP_TITLEBAR_STATE = atom[19];
 611
 612 #ifdef XDND
 613         wXDNDInitializeAtoms();
 614 #endif
 615
 616         /* cursors */
 617         wCursor[WCUR_NORMAL] = None;    /* inherit from root */
 618         wCursor[WCUR_ROOT] = XCreateFontCursor(dpy, XC_left_ptr);
 619         wCursor[WCUR_ARROW] = XCreateFontCursor(dpy, XC_top_left_arrow);
 620         wCursor[WCUR_MOVE] = XCreateFontCursor(dpy, XC_fleur);
 621         wCursor[WCUR_RESIZE] = XCreateFontCursor(dpy, XC_sizing);
 622         wCursor[WCUR_TOPLEFTRESIZE] = XCreateFontCursor(dpy, XC_top_left_corner);
 623         wCursor[WCUR_TOPRIGHTRESIZE] = XCreateFontCursor(dpy, XC_top_right_corner);
 624         wCursor[WCUR_BOTTOMLEFTRESIZE] = XCreateFontCursor(dpy, XC_bottom_left_corner);
 625         wCursor[WCUR_BOTTOMRIGHTRESIZE] = XCreateFontCursor(dpy, XC_bottom_right_corner);
 626         wCursor[WCUR_VERTICALRESIZE] = XCreateFontCursor(dpy, XC_sb_v_double_arrow);
 627         wCursor[WCUR_HORIZONRESIZE] = XCreateFontCursor(dpy, XC_sb_h_double_arrow);
 628         wCursor[WCUR_WAIT] = XCreateFontCursor(dpy, XC_watch);
 629         wCursor[WCUR_QUESTION] = XCreateFontCursor(dpy, XC_question_arrow);
 630         wCursor[WCUR_TEXT] = XCreateFontCursor(dpy, XC_xterm);  /* odd name??? */
 631         wCursor[WCUR_SELECT] = XCreateFontCursor(dpy, XC_cross);
 632         {
 633                 Pixmap cur = XCreatePixmap(dpy, DefaultRootWindow(dpy), 16, 16, 1);
 634                 GC gc = XCreateGC(dpy, cur, 0, NULL);
 635                 XColor black;
 636                 memset(&black, 0, sizeof(XColor));
 637                 XSetForeground(dpy, gc, 0);
 638                 XFillRectangle(dpy, cur, gc, 0, 0, 16, 16);
 639                 XFreeGC(dpy, gc);
 640                 wCursor[WCUR_EMPTY] = XCreatePixmapCursor(dpy, cur, cur, &black, &black, 0, 0);
 641                 XFreePixmap(dpy, cur);
 642         }
 643
 644         /* emergency exit... */
 645         sig_action.sa_handler = handleSig;
 646         sigemptyset(&sig_action.sa_mask);
 647
 648         sig_action.sa_flags = SA_RESTART;
 649         sigaction(SIGQUIT, &sig_action, NULL);
 650         /* instead of catching these, we let the default handler abort the
 651          * program. The new monitor process will take appropriate action
 652          * when it detects the crash.
 653          sigaction(SIGSEGV, &sig_action, NULL);
 654          sigaction(SIGBUS, &sig_action, NULL);
 655          sigaction(SIGFPE, &sig_action, NULL);
 656          sigaction(SIGABRT, &sig_action, NULL);
 657          */
 658
 659         sig_action.sa_handler = handleExitSig;
 660
 661         /* Here we set SA_RESTART for safety, because SIGUSR1 may not be handled
 662          * immediately. -Dan */
 663         sig_action.sa_flags = SA_RESTART;
 664         sigaction(SIGTERM, &sig_action, NULL);
 665         sigaction(SIGINT, &sig_action, NULL);
 666         sigaction(SIGHUP, &sig_action, NULL);
 667         sigaction(SIGUSR1, &sig_action, NULL);
 668         sigaction(SIGUSR2, &sig_action, NULL);
 669
 670         /* ignore dead pipe */
 671         /* Because POSIX mandates that only signal with handlers are reset
 672          * accross an exec*(), we do not want to propagate ignoring SIGPIPEs
 673          * to children. Hence the dummy handler.
 674          * Philippe Troin <phil@fifi.org>
 675          */
 676         sig_action.sa_handler = &dummyHandler;
 677         sig_action.sa_flags = SA_RESTART;
 678         sigaction(SIGPIPE, &sig_action, NULL);
 679
 680         /* handle dead children */
 681         sig_action.sa_handler = buryChild;
 682         sig_action.sa_flags = SA_NOCLDSTOP | SA_RESTART;
 683         sigaction(SIGCHLD, &sig_action, NULL);
 684
 685         /* Now we unblock all signals, that may have been blocked by the parent
 686          * who exec()-ed us. This can happen for example if Window Maker crashes
 687          * and restarts itself or another window manager from the signal handler.
 688          * In this case, the new proccess inherits the blocked signal mask and
 689          * will no longer react to that signal, until unblocked.
 690          * This is because the signal handler of the proccess who crashed (parent)
 691          * didn't return, and the signal remained blocked. -Dan
 692          */
 693         sigfillset(&sig_action.sa_mask);
 694         sigprocmask(SIG_UNBLOCK, &sig_action.sa_mask, NULL);
 695
 696         /* handle X shutdowns a such */
 697         XSetIOErrorHandler(handleXIO);
 698
 699         /* set hook for out event dispatcher in WINGs event dispatcher */
 700         WMHookEventHandler(DispatchEvent);
 701
 702         /* initialize defaults stuff */
 703         WDWindowMaker = wDefaultsInitDomain("WindowMaker", True);
 704         if (!WDWindowMaker->dictionary) {
 705                 wwarning(_("could not read domain \"%s\" from defaults database"), "WindowMaker");
 706         }
 707
 708         /* read defaults that don't change until a restart and are
 709          * screen independent */
 710         wReadStaticDefaults(WDWindowMaker ? WDWindowMaker->dictionary : NULL);
 711
 712         /* check sanity of some values */
 713         if (wPreferences.icon_size < 16) {
 714                 wwarning(_("icon size is configured to %i, but it's too small. Using 16, instead\n"),
 715                          wPreferences.icon_size);
 716                 wPreferences.icon_size = 16;
 717         }
 718
 719         /* init other domains */
 720         WDRootMenu = wDefaultsInitDomain("WMRootMenu", False);
 721         if (!WDRootMenu->dictionary) {
 722                 wwarning(_("could not read domain \"%s\" from defaults database"), "WMRootMenu");
 723         }
 724         wDefaultsMergeGlobalMenus(WDRootMenu);
 725
 726         WDWindowAttributes = wDefaultsInitDomain("WMWindowAttributes", True);
 727         if (!WDWindowAttributes->dictionary) {
 728                 wwarning(_("could not read domain \"%s\" from defaults database"), "WMWindowAttributes");
 729         }
 730
 731         XSetErrorHandler((XErrorHandler) catchXError);
 732
 733 #ifdef SHAPE
 734         /* ignore j */
 735         wShapeSupported = XShapeQueryExtension(dpy, &wShapeEventBase, &j);
 736 #endif
 737
 738 #ifdef KEEP_XKB_LOCK_STATUS
 739         wXkbSupported = XkbQueryExtension(dpy, NULL, &wXkbEventBase, NULL, NULL, NULL);
 740         if (wPreferences.modelock && !wXkbSupported) {
 741                 wwarning(_("XKB is not supported. KbdModeLock is automatically disabled."));
 742                 wPreferences.modelock = 0;
 743         }
 744 #endif
 745
 746         if (defaultScreenOnly) {
 747                 max = 1;
 748         } else {
 749                 max = ScreenCount(dpy);
 750         }
 751         wScreen = wmalloc(sizeof(WScreen *) * max);
 752
 753         wScreenCount = 0;
 754
 755         /* manage the screens */
 756         for (j = 0; j < max; j++) {
 757                 if (defaultScreenOnly || max == 1) {
 758                         wScreen[wScreenCount] = wScreenInit(DefaultScreen(dpy));
 759                         if (!wScreen[wScreenCount]) {
 760                                 wfatal(_("it seems that there is already a window manager running"));
 761                                 Exit(1);
 762                         }
 763                 } else {
 764                         wScreen[wScreenCount] = wScreenInit(j);
 765                         if (!wScreen[wScreenCount]) {
 766                                 wwarning(_("could not manage screen %i"), j);
 767                                 continue;
 768                         }
 769                 }
 770                 wScreenCount++;
 771         }
 772
 773 #ifndef LITE
 774         InitializeSwitchMenu();
 775 #endif
 776
 777         /* initialize/restore state for the screens */
 778         for (j = 0; j < wScreenCount; j++) {
 779                 int lastDesktop;
 780
 781                 lastDesktop = wNETWMGetCurrentDesktopFromHint(wScreen[j]);
 782
 783                 wScreenRestoreState(wScreen[j]);
 784
 785                 /* manage all windows that were already here before us */
 786                 if (!wPreferences.flags.nodock && wScreen[j]->dock)
 787                         wScreen[j]->last_dock = wScreen[j]->dock;
 788
 789                 manageAllWindows(wScreen[j], wPreferences.flags.restarting == 2);
 790
 791                 /* restore saved menus */
 792                 wMenuRestoreState(wScreen[j]);
 793
 794                 /* If we're not restarting, restore session */
 795                 if (wPreferences.flags.restarting == 0 && !wPreferences.flags.norestore)
 796                         wSessionRestoreState(wScreen[j]);
 797
 798                 if (!wPreferences.flags.noautolaunch) {
 799                         /* auto-launch apps */
 800                         if (!wPreferences.flags.nodock && wScreen[j]->dock) {
 801                                 wScreen[j]->last_dock = wScreen[j]->dock;
 802                                 wDockDoAutoLaunch(wScreen[j]->dock, 0);
 803                         }
 804                         /* auto-launch apps in clip */
 805                         if (!wPreferences.flags.noclip) {
 806                                 int i;
 807                                 for (i = 0; i < wScreen[j]->workspace_count; i++) {
 808                                         if (wScreen[j]->workspaces[i]->clip) {
 809                                                 wScreen[j]->last_dock = wScreen[j]->workspaces[i]->clip;
 810                                                 wDockDoAutoLaunch(wScreen[j]->workspaces[i]->clip, i);
 811                                         }
 812                                 }
 813                         }
 814                 }
 815
 816                 /* go to workspace where we were before restart */
 817                 if (lastDesktop >= 0) {
 818                         wWorkspaceForceChange(wScreen[j], lastDesktop);
 819                 } else {
 820                         wSessionRestoreLastWorkspace(wScreen[j]);
 821                 }
 822         }
 823
 824         if (wScreenCount == 0) {
 825                 wfatal(_("could not manage any screen"));
 826                 Exit(1);
 827         }
 828
 829 }
 830
 831 static Bool windowInList(Window window, Window * list, int count)
 832 {
 833         for (; count >= 0; count--) {
 834                 if (window == list[count])
 835                         return True;
 836         }
 837         return False;
 838 }
 839
 840 /*
 841  *-----------------------------------------------------------------------
 842  * manageAllWindows--
 843  *      Manages all windows in the screen.
 844  *
 845  * Notes:
 846  *      Called when the wm is being started.
 847  *      No events can be processed while the windows are being
 848  * reparented/managed.
 849  *-----------------------------------------------------------------------
 850  */
 851 static void manageAllWindows(WScreen * scr, int crashRecovery)
 852 {
 853         Window root, parent;
 854         Window *children;
 855         unsigned int nchildren;
 856         unsigned int i, j;
 857         WWindow *wwin;
 858
 859         XGrabServer(dpy);
 860         XQueryTree(dpy, scr->root_win, &root, &parent, &children, &nchildren);
 861
 862         scr->flags.startup = 1;
 863
 864         /* first remove all icon windows */
 865         for (i = 0; i < nchildren; i++) {
 866                 XWMHints *wmhints;
 867
 868                 if (children[i] == None)
 869                         continue;
 870
 871                 wmhints = XGetWMHints(dpy, children[i]);
 872                 if (wmhints && (wmhints->flags & IconWindowHint)) {
 873                         for (j = 0; j < nchildren; j++) {
 874                                 if (children[j] == wmhints->icon_window) {
 875                                         XFree(wmhints);
 876                                         wmhints = NULL;
 877                                         children[j] = None;
 878                                         break;
 879                                 }
 880                         }
 881                 }
 882                 if (wmhints) {
 883                         XFree(wmhints);
 884                 }
 885         }
 886
 887         for (i = 0; i < nchildren; i++) {
 888                 if (children[i] == None)
 889                         continue;
 890
 891                 wwin = wManageWindow(scr, children[i]);
 892                 if (wwin) {
 893                         /* apply states got from WSavedState */
 894                         /* shaded + minimized is not restored correctly */
 895                         if (wwin->flags.shaded) {
 896                                 wwin->flags.shaded = 0;
 897                                 wShadeWindow(wwin);
 898                         }
 899                         if (wwin->flags.miniaturized
 900                             && (wwin->transient_for == None
 901                                 || wwin->transient_for == scr->root_win
 902                                 || !windowInList(wwin->transient_for, children, nchildren))) {
 903
 904                                 wwin->flags.skip_next_animation = 1;
 905                                 wwin->flags.miniaturized = 0;
 906                                 wIconifyWindow(wwin);
 907                         } else {
 908                                 wClientSetState(wwin, NormalState, None);
 909                         }
 910                         if (crashRecovery) {
 911                                 int border;
 912
 913                                 border = (!HAS_BORDER(wwin) ? 0 : FRAME_BORDER_WIDTH);
 914
 915                                 wWindowMove(wwin, wwin->frame_x - border,
 916                                             wwin->frame_y - border -
 917                                             (wwin->frame->titlebar ? wwin->frame->titlebar->height : 0));
 918                         }
 919                 }
 920         }
 921         XUngrabServer(dpy);
 922
 923         /* hide apps */
 924         wwin = scr->focused_window;
 925         while (wwin) {
 926                 if (wwin->flags.hidden) {
 927                         WApplication *wapp = wApplicationOf(wwin->main_window);
 928
 929                         if (wapp) {
 930                                 wwin->flags.hidden = 0;
 931                                 wHideApplication(wapp);
 932                         } else {
 933                                 wwin->flags.hidden = 0;
 934                         }
 935                 }
 936                 wwin = wwin->prev;
 937         }
 938
 939         XFree(children);
 940         scr->flags.startup = 0;
 941         scr->flags.startup2 = 1;
 942
 943         while (XPending(dpy)) {
 944                 XEvent ev;
 945                 WMNextEvent(dpy, &ev);
 946                 WMHandleEvent(&ev);
 947         }
 948         wWorkspaceForceChange(scr, 0);
 949         if (!wPreferences.flags.noclip)
 950                 wDockShowIcons(scr->workspaces[scr->current_workspace]->clip);
 951         scr->flags.startup2 = 0;
 952 }