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 along
  18  *  with this program; if not, write to the Free Software Foundation, Inc.,
  19  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "wconfig.h"
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <unistd.h>
  27 #include <string.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/Xresource.h>
  37 #include <X11/Xutil.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 #ifdef KEEP_XKB_LOCK_STATUS
  45 #include <X11/XKBlib.h>
  46 #endif
  47 #ifdef HAVE_XRANDR
  48 #include <X11/extensions/Xrandr.h>
  49 #endif
  50
  51 #include "WindowMaker.h"
  52 #include "GNUstep.h"
  53 #include "texture.h"
  54 #include "screen.h"
  55 #include "window.h"
  56 #include "actions.h"
  57 #include "client.h"
  58 #include "main.h"
  59 #include "startup.h"
  60 #include "dock.h"
  61 #include "workspace.h"
  62 #include "keybind.h"
  63 #include "framewin.h"
  64 #include "session.h"
  65 #include "defaults.h"
  66 #include "properties.h"
  67 #include "dialog.h"
  68 #include "wmspec.h"
  69 #include "event.h"
  70 #include "switchmenu.h"
  71 #ifdef XDND
  72 #include "xdnd.h"
  73 #endif
  74
  75 #include "xutil.h"
  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 /***** Local *****/
  88 static WScreen **wScreen = NULL;
  89 static unsigned int _NumLockMask = 0;
  90 static unsigned int _ScrollLockMask = 0;
  91 static void manageAllWindows(WScreen * scr, int crashed);
  92
  93 static int catchXError(Display * dpy, XErrorEvent * error)
  94 {
  95         char buffer[MAXLINE];
  96
  97         /* ignore some errors */
  98         if (error->resourceid != None
  99             && ((error->error_code == BadDrawable && error->request_code == X_GetGeometry)
 100                 || (error->error_code == BadMatch && (error->request_code == X_SetInputFocus))
 101                 || (error->error_code == BadWindow)
 102                 /*
 103                    && (error->request_code == X_GetWindowAttributes
 104                    || error->request_code == X_SetInputFocus
 105                    || error->request_code == X_ChangeWindowAttributes
 106                    || error->request_code == X_GetProperty
 107                    || error->request_code == X_ChangeProperty
 108                    || error->request_code == X_QueryTree
 109                    || error->request_code == X_GrabButton
 110                    || error->request_code == X_UngrabButton
 111                    || error->request_code == X_SendEvent
 112                    || error->request_code == X_ConfigureWindow))
 113                  */
 114                 || (error->request_code == X_InstallColormap))) {
 115                 return 0;
 116         }
 117         FormatXError(dpy, error, buffer, MAXLINE);
 118         wwarning(_("internal X error: %s"), buffer);
 119         return -1;
 120 }
 121
 122 /*
 123  *----------------------------------------------------------------------
 124  * handleXIO-
 125  *      Handle X shutdowns and other stuff.
 126  *----------------------------------------------------------------------
 127  */
 128 static int handleXIO(Display * xio_dpy)
 129 {
 130         dpy = NULL;
 131         Exit(0);
 132         return 0;
 133 }
 134
 135 /*
 136  *----------------------------------------------------------------------
 137  * handleExitSig--
 138  *      User generated exit signal handler.
 139  *----------------------------------------------------------------------
 140  */
 141 static RETSIGTYPE handleExitSig(int sig)
 142 {
 143         sigset_t sigs;
 144
 145         sigfillset(&sigs);
 146         sigprocmask(SIG_BLOCK, &sigs, NULL);
 147
 148         if (sig == SIGUSR1) {
 149                 wwarning("got signal %i - restarting", sig);
 150                 SIG_WCHANGE_STATE(WSTATE_NEED_RESTART);
 151         } else if (sig == SIGUSR2) {
 152                 wwarning("got signal %i - rereading defaults", sig);
 153                 SIG_WCHANGE_STATE(WSTATE_NEED_REREAD);
 154         } else if (sig == SIGTERM || sig == SIGINT || sig == SIGHUP) {
 155                 wwarning("got signal %i - exiting...", sig);
 156                 SIG_WCHANGE_STATE(WSTATE_NEED_EXIT);
 157         }
 158
 159         sigprocmask(SIG_UNBLOCK, &sigs, NULL);
 160         DispatchEvent(NULL);    /* Dispatch events imediately. */
 161 }
 162
 163 /* Dummy signal handler */
 164 static void dummyHandler(int sig)
 165 {
 166 }
 167
 168 /*
 169  *----------------------------------------------------------------------
 170  * handleSig--
 171  *      general signal handler. Exits the program gently.
 172  *----------------------------------------------------------------------
 173  */
 174 static RETSIGTYPE handleSig(int sig)
 175 {
 176         wfatal("got signal %i", sig);
 177
 178         /* Setting the signal behaviour back to default and then reraising the
 179          * signal is a cleaner way to make program exit and core dump than calling
 180          * abort(), since it correctly returns from the signal handler and sets
 181          * the flags accordingly. -Dan
 182          */
 183         if (sig == SIGSEGV || sig == SIGFPE || sig == SIGBUS || sig == SIGILL || sig == SIGABRT) {
 184                 signal(sig, SIG_DFL);
 185                 kill(getpid(), sig);
 186                 return;
 187         }
 188
 189         wAbort(0);
 190 }
 191
 192 static RETSIGTYPE buryChild(int foo)
 193 {
 194         pid_t pid;
 195         int status;
 196         int save_errno = errno;
 197         sigset_t sigs;
 198
 199         sigfillset(&sigs);
 200         /* Block signals so that NotifyDeadProcess() doesn't get fux0red */
 201         sigprocmask(SIG_BLOCK, &sigs, NULL);
 202
 203         /* R.I.P. */
 204         /* If 2 or more kids exit in a small time window, before this handler gets
 205          * the chance to get invoked, the SIGCHLD signals will be merged and only
 206          * one SIGCHLD signal will be sent to us. We use a while loop to get all
 207          * exited child status because we can't count on the number of SIGCHLD
 208          * signals to know exactly how many kids have exited. -Dan
 209          */
 210         while ((pid = waitpid(-1, &status, WNOHANG)) > 0 || (pid < 0 && errno == EINTR)) {
 211                 NotifyDeadProcess(pid, WEXITSTATUS(status));
 212         }
 213
 214         sigprocmask(SIG_UNBLOCK, &sigs, NULL);
 215
 216         errno = save_errno;
 217 }
 218
 219 static void getOffendingModifiers(void)
 220 {
 221         int i;
 222         XModifierKeymap *modmap;
 223         KeyCode nlock, slock;
 224         static int mask_table[8] = {
 225                 ShiftMask, LockMask, ControlMask, Mod1Mask,
 226                 Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask
 227         };
 228
 229         nlock = XKeysymToKeycode(dpy, XK_Num_Lock);
 230         slock = XKeysymToKeycode(dpy, XK_Scroll_Lock);
 231
 232         /*
 233          * Find out the masks for the NumLock and ScrollLock modifiers,
 234          * so that we can bind the grabs for when they are enabled too.
 235          */
 236         modmap = XGetModifierMapping(dpy);
 237
 238         if (modmap != NULL && modmap->max_keypermod > 0) {
 239                 for (i = 0; i < 8 * modmap->max_keypermod; i++) {
 240                         if (modmap->modifiermap[i] == nlock && nlock != 0)
 241                                 _NumLockMask = mask_table[i / modmap->max_keypermod];
 242                         else if (modmap->modifiermap[i] == slock && slock != 0)
 243                                 _ScrollLockMask = mask_table[i / modmap->max_keypermod];
 244                 }
 245         }
 246
 247         if (modmap)
 248                 XFreeModifiermap(modmap);
 249 }
 250
 251 #ifdef NUMLOCK_HACK
 252 void
 253 wHackedGrabKey(int keycode, unsigned int modifiers,
 254                Window grab_window, Bool owner_events, int pointer_mode, int keyboard_mode)
 255 {
 256         if (modifiers == AnyModifier)
 257                 return;
 258
 259         /* grab all combinations of the modifier with CapsLock, NumLock and
 260          * ScrollLock. How much memory/CPU does such a monstrosity consume
 261          * in the server?
 262          */
 263         if (_NumLockMask)
 264                 XGrabKey(dpy, keycode, modifiers | _NumLockMask,
 265                          grab_window, owner_events, pointer_mode, keyboard_mode);
 266         if (_ScrollLockMask)
 267                 XGrabKey(dpy, keycode, modifiers | _ScrollLockMask,
 268                          grab_window, owner_events, pointer_mode, keyboard_mode);
 269         if (_NumLockMask && _ScrollLockMask)
 270                 XGrabKey(dpy, keycode, modifiers | _NumLockMask | _ScrollLockMask,
 271                          grab_window, owner_events, pointer_mode, keyboard_mode);
 272         if (_NumLockMask)
 273                 XGrabKey(dpy, keycode, modifiers | _NumLockMask | LockMask,
 274                          grab_window, owner_events, pointer_mode, keyboard_mode);
 275         if (_ScrollLockMask)
 276                 XGrabKey(dpy, keycode, modifiers | _ScrollLockMask | LockMask,
 277                          grab_window, owner_events, pointer_mode, keyboard_mode);
 278         if (_NumLockMask && _ScrollLockMask)
 279                 XGrabKey(dpy, keycode, modifiers | _NumLockMask | _ScrollLockMask | LockMask,
 280                          grab_window, owner_events, pointer_mode, keyboard_mode);
 281         /* phew, I guess that's all, right? */
 282 }
 283 #endif
 284
 285 void
 286 wHackedGrabButton(unsigned int button, unsigned int modifiers,
 287                   Window grab_window, Bool owner_events,
 288                   unsigned int event_mask, int pointer_mode, int keyboard_mode, Window confine_to, Cursor cursor)
 289 {
 290         XGrabButton(dpy, button, modifiers, grab_window, owner_events,
 291                     event_mask, pointer_mode, keyboard_mode, confine_to, cursor);
 292
 293         if (modifiers == AnyModifier)
 294                 return;
 295
 296         XGrabButton(dpy, button, modifiers | LockMask, grab_window, owner_events,
 297                     event_mask, pointer_mode, keyboard_mode, confine_to, cursor);
 298
 299 #ifdef NUMLOCK_HACK
 300         /* same as above, but for mouse buttons */
 301         if (_NumLockMask)
 302                 XGrabButton(dpy, button, modifiers | _NumLockMask,
 303                             grab_window, owner_events, event_mask, pointer_mode,
 304                             keyboard_mode, confine_to, cursor);
 305         if (_ScrollLockMask)
 306                 XGrabButton(dpy, button, modifiers | _ScrollLockMask,
 307                             grab_window, owner_events, event_mask, pointer_mode,
 308                             keyboard_mode, confine_to, cursor);
 309         if (_NumLockMask && _ScrollLockMask)
 310                 XGrabButton(dpy, button, modifiers | _ScrollLockMask | _NumLockMask,
 311                             grab_window, owner_events, event_mask, pointer_mode,
 312                             keyboard_mode, confine_to, cursor);
 313         if (_NumLockMask)
 314                 XGrabButton(dpy, button, modifiers | _NumLockMask | LockMask,
 315                             grab_window, owner_events, event_mask, pointer_mode,
 316                             keyboard_mode, confine_to, cursor);
 317         if (_ScrollLockMask)
 318                 XGrabButton(dpy, button, modifiers | _ScrollLockMask | LockMask,
 319                             grab_window, owner_events, event_mask, pointer_mode,
 320                             keyboard_mode, confine_to, cursor);
 321         if (_NumLockMask && _ScrollLockMask)
 322                 XGrabButton(dpy, button, modifiers | _ScrollLockMask | _NumLockMask | LockMask,
 323                             grab_window, owner_events, event_mask, pointer_mode,
 324                             keyboard_mode, confine_to, cursor);
 325 #endif                          /* NUMLOCK_HACK */
 326 }
 327
 328 WScreen *wScreenWithNumber(int i)
 329 {
 330         assert(i < w_global.screen_count);
 331
 332         return wScreen[i];
 333 }
 334
 335 WScreen *wScreenForRootWindow(Window window)
 336 {
 337         int i;
 338
 339         if (w_global.screen_count == 1)
 340                 return wScreen[0];
 341
 342         /* Since the number of heads will probably be small (normally 2),
 343          * it should be faster to use this than a hash table, because
 344          * of the overhead. */
 345         for (i = 0; i < w_global.screen_count; i++)
 346                 if (wScreen[i]->root_win == window)
 347                         return wScreen[i];
 348
 349         return wScreenForWindow(window);
 350 }
 351
 352 WScreen *wScreenForWindow(Window window)
 353 {
 354         XWindowAttributes attr;
 355
 356         if (w_global.screen_count == 1)
 357                 return wScreen[0];
 358
 359         if (XGetWindowAttributes(dpy, window, &attr))
 360                 return wScreenForRootWindow(attr.root);
 361
 362         return NULL;
 363 }
 364
 365 static char *atomNames[] = {
 366         "WM_STATE",
 367         "WM_CHANGE_STATE",
 368         "WM_PROTOCOLS",
 369         "WM_TAKE_FOCUS",
 370         "WM_DELETE_WINDOW",
 371         "WM_SAVE_YOURSELF",
 372         "WM_CLIENT_LEADER",
 373         "WM_COLORMAP_WINDOWS",
 374         "WM_COLORMAP_NOTIFY",
 375
 376         "_WINDOWMAKER_MENU",
 377         "_WINDOWMAKER_STATE",
 378         "_WINDOWMAKER_WM_PROTOCOLS",
 379         "_WINDOWMAKER_WM_FUNCTION",
 380         "_WINDOWMAKER_NOTICEBOARD",
 381         "_WINDOWMAKER_COMMAND",
 382         "_WINDOWMAKER_ICON_SIZE",
 383         "_WINDOWMAKER_ICON_TILE",
 384
 385         GNUSTEP_WM_ATTR_NAME,
 386         GNUSTEP_WM_MINIATURIZE_WINDOW,
 387         GNUSTEP_TITLEBAR_STATE,
 388
 389         "WM_IGNORE_FOCUS_EVENTS"
 390 };
 391
 392 /*
 393  *----------------------------------------------------------
 394  * StartUp--
 395  *      starts the window manager and setup global data.
 396  * Called from main() at startup.
 397  *
 398  * Side effects:
 399  * global data declared in main.c is initialized
 400  *----------------------------------------------------------
 401  */
 402 void StartUp(Bool defaultScreenOnly)
 403 {
 404         struct sigaction sig_action;
 405         int i, j, max;
 406         char **formats;
 407 #ifdef HAVE_XRANDR
 408         int dummy;
 409 #endif
 410         Atom atom[sizeof(atomNames) / sizeof(atomNames[0])];
 411
 412         /*
 413          * Ignore CapsLock in modifiers
 414          */
 415         w_global.shortcut.modifiers_mask = 0xff & ~LockMask;
 416
 417         getOffendingModifiers();
 418         /*
 419          * Ignore NumLock and ScrollLock too
 420          */
 421         w_global.shortcut.modifiers_mask &= ~(_NumLockMask | _ScrollLockMask);
 422
 423         memset(&wKeyBindings, 0, sizeof(wKeyBindings));
 424
 425         w_global.context.client_win = XUniqueContext();
 426         w_global.context.app_win = XUniqueContext();
 427         w_global.context.stack = XUniqueContext();
 428
 429         /*    _XA_VERSION = XInternAtom(dpy, "VERSION", False); */
 430
 431 #ifdef HAVE_XINTERNATOMS
 432         XInternAtoms(dpy, atomNames, sizeof(atomNames) / sizeof(atomNames[0]), False, atom);
 433 #else
 434
 435         {
 436                 int i;
 437                 for (i = 0; i < sizeof(atomNames) / sizeof(atomNames[0]); i++)
 438                         atom[i] = XInternAtom(dpy, atomNames[i], False);
 439         }
 440 #endif
 441
 442         w_global.atom.wm.state = atom[0];
 443         w_global.atom.wm.change_state = atom[1];
 444         w_global.atom.wm.protocols = atom[2];
 445         w_global.atom.wm.take_focus = atom[3];
 446         w_global.atom.wm.delete_window = atom[4];
 447         w_global.atom.wm.save_yourself = atom[5];
 448         w_global.atom.wm.client_leader = atom[6];
 449         w_global.atom.wm.colormap_windows = atom[7];
 450         w_global.atom.wm.colormap_notify = atom[8];
 451
 452         w_global.atom.wmaker.menu = atom[9];
 453         w_global.atom.wmaker.state = atom[10];
 454         w_global.atom.wmaker.wm_protocols = atom[11];
 455         w_global.atom.wmaker.wm_function = atom[12];
 456         w_global.atom.wmaker.noticeboard = atom[13];
 457         w_global.atom.wmaker.command = atom[14];
 458         w_global.atom.wmaker.icon_size = atom[15];
 459         w_global.atom.wmaker.icon_tile = atom[16];
 460
 461         w_global.atom.gnustep.wm_attr = atom[17];
 462         w_global.atom.gnustep.wm_miniaturize_window = atom[18];
 463         w_global.atom.gnustep.titlebar_state = atom[19];
 464
 465         w_global.atom.wm.ignore_focus_events = atom[20];
 466
 467 #ifdef XDND
 468         wXDNDInitializeAtoms();
 469 #endif
 470
 471         /* cursors */
 472         wPreferences.cursor[WCUR_NORMAL] = None;        /* inherit from root */
 473         wPreferences.cursor[WCUR_ROOT] = XCreateFontCursor(dpy, XC_left_ptr);
 474         wPreferences.cursor[WCUR_ARROW] = XCreateFontCursor(dpy, XC_top_left_arrow);
 475         wPreferences.cursor[WCUR_MOVE] = XCreateFontCursor(dpy, XC_fleur);
 476         wPreferences.cursor[WCUR_RESIZE] = XCreateFontCursor(dpy, XC_sizing);
 477         wPreferences.cursor[WCUR_TOPLEFTRESIZE] = XCreateFontCursor(dpy, XC_top_left_corner);
 478         wPreferences.cursor[WCUR_TOPRIGHTRESIZE] = XCreateFontCursor(dpy, XC_top_right_corner);
 479         wPreferences.cursor[WCUR_BOTTOMLEFTRESIZE] = XCreateFontCursor(dpy, XC_bottom_left_corner);
 480         wPreferences.cursor[WCUR_BOTTOMRIGHTRESIZE] = XCreateFontCursor(dpy, XC_bottom_right_corner);
 481         wPreferences.cursor[WCUR_VERTICALRESIZE] = XCreateFontCursor(dpy, XC_sb_v_double_arrow);
 482         wPreferences.cursor[WCUR_HORIZONRESIZE] = XCreateFontCursor(dpy, XC_sb_h_double_arrow);
 483         wPreferences.cursor[WCUR_WAIT] = XCreateFontCursor(dpy, XC_watch);
 484         wPreferences.cursor[WCUR_QUESTION] = XCreateFontCursor(dpy, XC_question_arrow);
 485         wPreferences.cursor[WCUR_TEXT] = XCreateFontCursor(dpy, XC_xterm);      /* odd name??? */
 486         wPreferences.cursor[WCUR_SELECT] = XCreateFontCursor(dpy, XC_cross);
 487
 488         Pixmap cur = XCreatePixmap(dpy, DefaultRootWindow(dpy), 16, 16, 1);
 489         GC gc = XCreateGC(dpy, cur, 0, NULL);
 490         XColor black;
 491         memset(&black, 0, sizeof(XColor));
 492         XSetForeground(dpy, gc, 0);
 493         XFillRectangle(dpy, cur, gc, 0, 0, 16, 16);
 494         XFreeGC(dpy, gc);
 495         wPreferences.cursor[WCUR_EMPTY] = XCreatePixmapCursor(dpy, cur, cur, &black, &black, 0, 0);
 496         XFreePixmap(dpy, cur);
 497
 498         /* emergency exit... */
 499         sig_action.sa_handler = handleSig;
 500         sigemptyset(&sig_action.sa_mask);
 501
 502         sig_action.sa_flags = SA_RESTART;
 503         sigaction(SIGQUIT, &sig_action, NULL);
 504         /* instead of catching these, we let the default handler abort the
 505          * program. The new monitor process will take appropriate action
 506          * when it detects the crash.
 507          sigaction(SIGSEGV, &sig_action, NULL);
 508          sigaction(SIGBUS, &sig_action, NULL);
 509          sigaction(SIGFPE, &sig_action, NULL);
 510          sigaction(SIGABRT, &sig_action, NULL);
 511          */
 512
 513         sig_action.sa_handler = handleExitSig;
 514
 515         /* Here we set SA_RESTART for safety, because SIGUSR1 may not be handled
 516          * immediately. -Dan */
 517         sig_action.sa_flags = SA_RESTART;
 518         sigaction(SIGTERM, &sig_action, NULL);
 519         sigaction(SIGINT, &sig_action, NULL);
 520         sigaction(SIGHUP, &sig_action, NULL);
 521         sigaction(SIGUSR1, &sig_action, NULL);
 522         sigaction(SIGUSR2, &sig_action, NULL);
 523
 524         /* ignore dead pipe */
 525         /* Because POSIX mandates that only signal with handlers are reset
 526          * accross an exec*(), we do not want to propagate ignoring SIGPIPEs
 527          * to children. Hence the dummy handler.
 528          * Philippe Troin <phil@fifi.org>
 529          */
 530         sig_action.sa_handler = &dummyHandler;
 531         sig_action.sa_flags = SA_RESTART;
 532         sigaction(SIGPIPE, &sig_action, NULL);
 533
 534         /* handle dead children */
 535         sig_action.sa_handler = buryChild;
 536         sig_action.sa_flags = SA_NOCLDSTOP | SA_RESTART;
 537         sigaction(SIGCHLD, &sig_action, NULL);
 538
 539         /* Now we unblock all signals, that may have been blocked by the parent
 540          * who exec()-ed us. This can happen for example if Window Maker crashes
 541          * and restarts itself or another window manager from the signal handler.
 542          * In this case, the new proccess inherits the blocked signal mask and
 543          * will no longer react to that signal, until unblocked.
 544          * This is because the signal handler of the proccess who crashed (parent)
 545          * didn't return, and the signal remained blocked. -Dan
 546          */
 547         sigfillset(&sig_action.sa_mask);
 548         sigprocmask(SIG_UNBLOCK, &sig_action.sa_mask, NULL);
 549
 550         /* handle X shutdowns a such */
 551         XSetIOErrorHandler(handleXIO);
 552
 553         /* set hook for out event dispatcher in WINGs event dispatcher */
 554         WMHookEventHandler(DispatchEvent);
 555
 556         /* initialize defaults stuff */
 557         w_global.domain.wmaker = wDefaultsInitDomain("WindowMaker", True);
 558         if (!w_global.domain.wmaker->dictionary)
 559                 wwarning(_("could not read domain \"%s\" from defaults database"), "WindowMaker");
 560
 561         /* read defaults that don't change until a restart and are
 562          * screen independent */
 563         wReadStaticDefaults(w_global.domain.wmaker ? w_global.domain.wmaker->dictionary : NULL);
 564
 565         /* check sanity of some values */
 566         if (wPreferences.icon_size < 16) {
 567                 wwarning(_("icon size is configured to %i, but it's too small. Using 16 instead"),
 568                          wPreferences.icon_size);
 569                 wPreferences.icon_size = 16;
 570         }
 571
 572         /* init other domains */
 573         w_global.domain.root_menu = wDefaultsInitDomain("WMRootMenu", False);
 574         if (!w_global.domain.root_menu->dictionary)
 575                 wwarning(_("could not read domain \"%s\" from defaults database"), "WMRootMenu");
 576
 577         wDefaultsMergeGlobalMenus(w_global.domain.root_menu);
 578
 579         w_global.domain.window_attr = wDefaultsInitDomain("WMWindowAttributes", True);
 580         if (!w_global.domain.window_attr->dictionary)
 581                 wwarning(_("could not read domain \"%s\" from defaults database"), "WMWindowAttributes");
 582
 583         XSetErrorHandler((XErrorHandler) catchXError);
 584
 585 #ifdef SHAPE
 586         /* ignore j */
 587         w_global.xext.shape.supported = XShapeQueryExtension(dpy, &w_global.xext.shape.event_base, &j);
 588 #endif
 589
 590 #ifdef HAVE_XRANDR
 591         w_global.xext.randr.supported = XRRQueryExtension(dpy, &w_global.xext.randr.event_base, &dummy);
 592 #endif
 593
 594 #ifdef KEEP_XKB_LOCK_STATUS
 595         w_global.xext.xkb.supported = XkbQueryExtension(dpy, NULL, &w_global.xext.xkb.event_base, NULL, NULL, NULL);
 596         if (wPreferences.modelock && !w_global.xext.xkb.supported) {
 597                 wwarning(_("XKB is not supported. KbdModeLock is automatically disabled."));
 598                 wPreferences.modelock = 0;
 599         }
 600 #endif
 601
 602         if (defaultScreenOnly)
 603                 max = 1;
 604         else
 605                 max = ScreenCount(dpy);
 606
 607         wScreen = wmalloc(sizeof(WScreen *) * max);
 608
 609         w_global.screen_count = 0;
 610
 611         /* Check if TIFF images are supported */
 612         formats = RSupportedFileFormats();
 613         if (formats) {
 614                 for (i = 0; formats[i] != NULL; i++) {
 615                         if (strcmp(formats[i], "TIFF") == 0) {
 616                                 wPreferences.supports_tiff = 1;
 617                                 break;
 618                         }
 619                 }
 620         }
 621
 622         /* manage the screens */
 623         for (j = 0; j < max; j++) {
 624                 if (defaultScreenOnly || max == 1) {
 625                         wScreen[w_global.screen_count] = wScreenInit(DefaultScreen(dpy));
 626                         if (!wScreen[w_global.screen_count]) {
 627                                 wfatal(_("it seems that there is already a window manager running"));
 628                                 Exit(1);
 629                         }
 630                 } else {
 631                         wScreen[w_global.screen_count] = wScreenInit(j);
 632                         if (!wScreen[w_global.screen_count]) {
 633                                 wwarning(_("could not manage screen %i"), j);
 634                                 continue;
 635                         }
 636                 }
 637                 w_global.screen_count++;
 638         }
 639
 640         InitializeSwitchMenu();
 641
 642         /* initialize/restore state for the screens */
 643         for (j = 0; j < w_global.screen_count; j++) {
 644                 int lastDesktop;
 645
 646                 lastDesktop = wNETWMGetCurrentDesktopFromHint(wScreen[j]);
 647
 648                 wScreenRestoreState(wScreen[j]);
 649
 650                 /* manage all windows that were already here before us */
 651                 if (!wPreferences.flags.nodock && wScreen[j]->dock)
 652                         wScreen[j]->last_dock = wScreen[j]->dock;
 653
 654                 manageAllWindows(wScreen[j], wPreferences.flags.restarting == 2);
 655
 656                 /* restore saved menus */
 657                 wMenuRestoreState(wScreen[j]);
 658
 659                 /* If we're not restarting, restore session */
 660                 if (wPreferences.flags.restarting == 0 && !wPreferences.flags.norestore)
 661                         wSessionRestoreState(wScreen[j]);
 662
 663                 if (!wPreferences.flags.noautolaunch) {
 664                         /* auto-launch apps */
 665                         if (!wPreferences.flags.nodock && wScreen[j]->dock) {
 666                                 wScreen[j]->last_dock = wScreen[j]->dock;
 667                                 wDockDoAutoLaunch(wScreen[j]->dock, 0);
 668                         }
 669                         /* auto-launch apps in clip */
 670                         if (!wPreferences.flags.noclip) {
 671                                 int i;
 672                                 for (i = 0; i < w_global.workspace.count; i++) {
 673                                         if (w_global.workspace.array[i]->clip) {
 674                                                 wScreen[j]->last_dock = w_global.workspace.array[i]->clip;
 675                                                 wDockDoAutoLaunch(w_global.workspace.array[i]->clip, i);
 676                                         }
 677                                 }
 678                         }
 679                         /* auto-launch apps in drawers */
 680                         if (!wPreferences.flags.nodrawer) {
 681                                 WDrawerChain *dc;
 682                                 for (dc = wScreen[j]->drawers; dc; dc = dc->next) {
 683                                         wScreen[j]->last_dock = dc->adrawer;
 684                                         wDockDoAutoLaunch(dc->adrawer, 0);
 685                                 }
 686                         }
 687                 }
 688
 689                 /* go to workspace where we were before restart */
 690                 if (lastDesktop >= 0)
 691                         wWorkspaceForceChange(wScreen[j], lastDesktop);
 692                 else
 693                         wSessionRestoreLastWorkspace(wScreen[j]);
 694         }
 695
 696         if (w_global.screen_count == 0) {
 697                 wfatal(_("could not manage any screen"));
 698                 Exit(1);
 699         }
 700
 701 #ifndef HAVE_INOTIFY
 702         /* setup defaults file polling */
 703         if (!wPreferences.flags.nopolling && !wPreferences.flags.noupdates)
 704                 WMAddTimerHandler(3000, wDefaultsCheckDomains, NULL);
 705 #endif
 706
 707 }
 708
 709 static Bool windowInList(Window window, Window * list, int count)
 710 {
 711         for (; count >= 0; count--) {
 712                 if (window == list[count])
 713                         return True;
 714         }
 715         return False;
 716 }
 717
 718 /*
 719  *-----------------------------------------------------------------------
 720  * manageAllWindows--
 721  *      Manages all windows in the screen.
 722  *
 723  * Notes:
 724  *      Called when the wm is being started.
 725  *      No events can be processed while the windows are being
 726  * reparented/managed.
 727  *-----------------------------------------------------------------------
 728  */
 729 static void manageAllWindows(WScreen * scr, int crashRecovery)
 730 {
 731         Window root, parent;
 732         Window *children;
 733         unsigned int nchildren;
 734         unsigned int i, j;
 735         WWindow *wwin;
 736
 737         XGrabServer(dpy);
 738         XQueryTree(dpy, scr->root_win, &root, &parent, &children, &nchildren);
 739
 740         scr->flags.startup = 1;
 741
 742         /* first remove all icon windows */
 743         for (i = 0; i < nchildren; i++) {
 744                 XWMHints *wmhints;
 745
 746                 if (children[i] == None)
 747                         continue;
 748
 749                 wmhints = XGetWMHints(dpy, children[i]);
 750                 if (wmhints && (wmhints->flags & IconWindowHint)) {
 751                         for (j = 0; j < nchildren; j++) {
 752                                 if (children[j] == wmhints->icon_window) {
 753                                         XFree(wmhints);
 754                                         wmhints = NULL;
 755                                         children[j] = None;
 756                                         break;
 757                                 }
 758                         }
 759                 }
 760                 if (wmhints) {
 761                         XFree(wmhints);
 762                 }
 763         }
 764
 765         for (i = 0; i < nchildren; i++) {
 766                 if (children[i] == None)
 767                         continue;
 768
 769                 wwin = wManageWindow(scr, children[i]);
 770                 if (wwin) {
 771                         /* apply states got from WSavedState */
 772                         /* shaded + minimized is not restored correctly */
 773                         if (wwin->flags.shaded) {
 774                                 wwin->flags.shaded = 0;
 775                                 wShadeWindow(wwin);
 776                         }
 777                         if (wwin->flags.miniaturized
 778                             && (wwin->transient_for == None
 779                                 || wwin->transient_for == scr->root_win
 780                                 || !windowInList(wwin->transient_for, children, nchildren))) {
 781
 782                                 wwin->flags.skip_next_animation = 1;
 783                                 wwin->flags.miniaturized = 0;
 784                                 wIconifyWindow(wwin);
 785                         } else {
 786                                 wClientSetState(wwin, NormalState, None);
 787                         }
 788                         if (crashRecovery) {
 789                                 int border;
 790
 791                                 border = (!HAS_BORDER(wwin) ? 0 : scr->frame_border_width);
 792
 793                                 wWindowMove(wwin, wwin->frame_x - border,
 794                                             wwin->frame_y - border -
 795                                             (wwin->frame->titlebar ? wwin->frame->titlebar->height : 0));
 796                         }
 797                 }
 798         }
 799         XUngrabServer(dpy);
 800
 801         /* hide apps */
 802         wwin = scr->focused_window;
 803         while (wwin) {
 804                 if (wwin->flags.hidden) {
 805                         WApplication *wapp = wApplicationOf(wwin->main_window);
 806
 807                         if (wapp) {
 808                                 wwin->flags.hidden = 0;
 809                                 wHideApplication(wapp);
 810                         } else {
 811                                 wwin->flags.hidden = 0;
 812                         }
 813                 }
 814                 wwin = wwin->prev;
 815         }
 816
 817         XFree(children);
 818         scr->flags.startup = 0;
 819         scr->flags.startup2 = 1;
 820
 821         while (XPending(dpy)) {
 822                 XEvent ev;
 823                 WMNextEvent(dpy, &ev);
 824                 WMHandleEvent(&ev);
 825         }
 826         w_global.workspace.last_used = 0;
 827         wWorkspaceForceChange(scr, 0);
 828         if (!wPreferences.flags.noclip)
 829                 wDockShowIcons(w_global.workspace.array[w_global.workspace.current]->clip);
 830         scr->flags.startup2 = 0;
 831 }