Dogcows Code - chaz/openbox/blob - src/blackbox.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 // blackbox.cc for Blackbox - an X11 Window manager
   3 // Copyright (c) 2001 - 2002 Sean 'Shaleh' Perry <shaleh@debian.org>
   4 // Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net)
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining a
   7 // copy of this software and associated documentation files (the "Software"),
   8 // to deal in the Software without restriction, including without limitation
   9 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10 // and/or sell copies of the Software, and to permit persons to whom the
  11 // Software is furnished to do so, subject to the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be included in
  14 // all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22 // DEALINGS IN THE SOFTWARE.
  23
  24 #ifdef    HAVE_CONFIG_H
  25 #  include "../config.h"
  26 #endif // HAVE_CONFIG_H
  27
  28 extern "C" {
  29 #include <X11/Xlib.h>
  30 #include <X11/Xutil.h>
  31 #include <X11/Xatom.h>
  32 #include <X11/cursorfont.h>
  33 #include <X11/keysym.h>
  34
  35 #ifdef    SHAPE
  36 #include <X11/extensions/shape.h>
  37 #endif // SHAPE
  38
  39 #ifdef    HAVE_STDIO_H
  40 #  include <stdio.h>
  41 #endif // HAVE_STDIO_H
  42
  43 #ifdef HAVE_STDLIB_H
  44 #  include <stdlib.h>
  45 #endif // HAVE_STDLIB_H
  46
  47 #ifdef HAVE_STRING_H
  48 #  include <string.h>
  49 #endif // HAVE_STRING_H
  50
  51 #ifdef    HAVE_UNISTD_H
  52 #  include <sys/types.h>
  53 #  include <unistd.h>
  54 #endif // HAVE_UNISTD_H
  55
  56 #ifdef    HAVE_SYS_PARAM_H
  57 #  include <sys/param.h>
  58 #endif // HAVE_SYS_PARAM_H
  59
  60 #ifdef    HAVE_SYS_SELECT_H
  61 #  include <sys/select.h>
  62 #endif // HAVE_SYS_SELECT_H
  63
  64 #ifdef    HAVE_SIGNAL_H
  65 #  include <signal.h>
  66 #endif // HAVE_SIGNAL_H
  67
  68 #ifdef    HAVE_SYS_SIGNAL_H
  69 #  include <sys/signal.h>
  70 #endif // HAVE_SYS_SIGNAL_H
  71
  72 #ifdef    HAVE_SYS_STAT_H
  73 #  include <sys/types.h>
  74 #  include <sys/stat.h>
  75 #endif // HAVE_SYS_STAT_H
  76
  77 #ifdef    TIME_WITH_SYS_TIME
  78 #  include <sys/time.h>
  79 #  include <time.h>
  80 #else // !TIME_WITH_SYS_TIME
  81 #  ifdef    HAVE_SYS_TIME_H
  82 #    include <sys/time.h>
  83 #  else // !HAVE_SYS_TIME_H
  84 #    include <time.h>
  85 #  endif // HAVE_SYS_TIME_H
  86 #endif // TIME_WITH_SYS_TIME
  87
  88 #ifdef    HAVE_LIBGEN_H
  89 #  include <libgen.h>
  90 #endif // HAVE_LIBGEN_H
  91 }
  92
  93 #include <assert.h>
  94
  95 #include <algorithm>
  96 #include <string>
  97 using std::string;
  98
  99 #include "i18n.hh"
 100 #include "blackbox.hh"
 101 #include "Basemenu.hh"
 102 #include "Clientmenu.hh"
 103 #include "GCCache.hh"
 104 #include "Image.hh"
 105 #include "Rootmenu.hh"
 106 #include "Screen.hh"
 107 #include "Slit.hh"
 108 #include "Toolbar.hh"
 109 #include "Util.hh"
 110 #include "Window.hh"
 111 #include "Workspace.hh"
 112 #include "Workspacemenu.hh"
 113 #include "XAtom.hh"
 114
 115 // X event scanner for enter/leave notifies - adapted from twm
 116 struct scanargs {
 117   Window w;
 118   bool leave, inferior, enter;
 119 };
 120
 121 static Bool queueScanner(Display *, XEvent *e, char *args) {
 122   scanargs *scan = (scanargs *) args;
 123   if ((e->type == LeaveNotify) &&
 124       (e->xcrossing.window == scan->w) &&
 125       (e->xcrossing.mode == NotifyNormal)) {
 126     scan->leave = True;
 127     scan->inferior = (e->xcrossing.detail == NotifyInferior);
 128   } else if ((e->type == EnterNotify) && (e->xcrossing.mode == NotifyUngrab)) {
 129     scan->enter = True;
 130   }
 131
 132   return False;
 133 }
 134
 135 Blackbox *blackbox;
 136
 137
 138 Blackbox::Blackbox(char **m_argv, char *dpy_name, char *rc, char *menu)
 139   : BaseDisplay(m_argv[0], dpy_name) {
 140   if (! XSupportsLocale())
 141     fprintf(stderr, "X server does not support locale\n");
 142
 143   if (XSetLocaleModifiers("") == NULL)
 144     fprintf(stderr, "cannot set locale modifiers\n");
 145
 146   ::blackbox = this;
 147   argv = m_argv;
 148   if (! rc) rc = "~/.openbox/rc";
 149   rc_file = expandTilde(rc);
 150   config.setFile(rc_file);
 151   if (! menu) menu = "~/.openbox/menu";
 152   menu_file = expandTilde(menu);
 153
 154   no_focus = False;
 155
 156   resource.auto_raise_delay.tv_sec = resource.auto_raise_delay.tv_usec = 0;
 157
 158   active_screen = 0;
 159   focused_window = (BlackboxWindow *) 0;
 160
 161   XrmInitialize();
 162   load_rc();
 163
 164   xatom = new XAtom(this);
 165
 166   cursor.session = XCreateFontCursor(getXDisplay(), XC_left_ptr);
 167   cursor.move = XCreateFontCursor(getXDisplay(), XC_fleur);
 168   cursor.ll_angle = XCreateFontCursor(getXDisplay(), XC_ll_angle);
 169   cursor.lr_angle = XCreateFontCursor(getXDisplay(), XC_lr_angle);
 170
 171   for (unsigned int i = 0; i < getNumberOfScreens(); i++) {
 172     BScreen *screen = new BScreen(this, i);
 173
 174     if (! screen->isScreenManaged()) {
 175       delete screen;
 176       continue;
 177     }
 178
 179     screenList.push_back(screen);
 180   }
 181
 182   if (screenList.empty()) {
 183     fprintf(stderr,
 184             i18n(blackboxSet, blackboxNoManagableScreens,
 185               "Blackbox::Blackbox: no managable screens found, aborting.\n"));
 186     ::exit(3);
 187   }
 188
 189   // save current settings and default values
 190   save_rc();
 191
 192   // set the screen with mouse to the first managed screen
 193   active_screen = screenList.front();
 194   setFocusedWindow(0);
 195
 196   XSynchronize(getXDisplay(), False);
 197   XSync(getXDisplay(), False);
 198
 199   reconfigure_wait = reread_menu_wait = False;
 200
 201   timer = new BTimer(this, this);
 202   timer->setTimeout(0l);
 203 }
 204
 205
 206 Blackbox::~Blackbox(void) {
 207   std::for_each(screenList.begin(), screenList.end(), PointerAssassin());
 208
 209   std::for_each(menuTimestamps.begin(), menuTimestamps.end(),
 210                 PointerAssassin());
 211
 212   delete xatom;
 213
 214   delete timer;
 215 }
 216
 217
 218 void Blackbox::process_event(XEvent *e) {
 219   switch (e->type) {
 220   case ButtonPress: {
 221     // strip the lock key modifiers
 222     e->xbutton.state &= ~(NumLockMask | ScrollLockMask | LockMask);
 223
 224     last_time = e->xbutton.time;
 225
 226     BlackboxWindow *win = (BlackboxWindow *) 0;
 227     Basemenu *menu = (Basemenu *) 0;
 228     Slit *slit = (Slit *) 0;
 229     Toolbar *tbar = (Toolbar *) 0;
 230     BScreen *scrn = (BScreen *) 0;
 231
 232     if ((win = searchWindow(e->xbutton.window))) {
 233       win->buttonPressEvent(&e->xbutton);
 234
 235       /* XXX: is this sane on low colour desktops? */
 236       if (e->xbutton.button == 1)
 237         win->installColormap(True);
 238     } else if ((menu = searchMenu(e->xbutton.window))) {
 239       menu->buttonPressEvent(&e->xbutton);
 240     } else if ((slit = searchSlit(e->xbutton.window))) {
 241       slit->buttonPressEvent(&e->xbutton);
 242     } else if ((tbar = searchToolbar(e->xbutton.window))) {
 243       tbar->buttonPressEvent(&e->xbutton);
 244     } else if ((scrn = searchScreen(e->xbutton.window))) {
 245       scrn->buttonPressEvent(&e->xbutton);
 246       if (active_screen != scrn) {
 247         active_screen = scrn;
 248         // first, set no focus window on the old screen
 249         setFocusedWindow(0);
 250         // and move focus to this screen
 251         setFocusedWindow(0);
 252       }
 253     }
 254     break;
 255   }
 256
 257   case ButtonRelease: {
 258     // strip the lock key modifiers
 259     e->xbutton.state &= ~(NumLockMask | ScrollLockMask | LockMask);
 260
 261     last_time = e->xbutton.time;
 262
 263     BlackboxWindow *win = (BlackboxWindow *) 0;
 264     Basemenu *menu = (Basemenu *) 0;
 265     Toolbar *tbar = (Toolbar *) 0;
 266
 267     if ((win = searchWindow(e->xbutton.window)))
 268       win->buttonReleaseEvent(&e->xbutton);
 269     else if ((menu = searchMenu(e->xbutton.window)))
 270       menu->buttonReleaseEvent(&e->xbutton);
 271     else if ((tbar = searchToolbar(e->xbutton.window)))
 272       tbar->buttonReleaseEvent(&e->xbutton);
 273
 274     break;
 275   }
 276
 277   case ConfigureRequest: {
 278     // compress configure requests...
 279     XEvent realevent;
 280     unsigned int i = 0;
 281     while(XCheckTypedWindowEvent(getXDisplay(), e->xconfigurerequest.window,
 282                                  ConfigureRequest, &realevent)) {
 283       i++;
 284     }
 285     if ( i > 0 )
 286       e = &realevent;
 287
 288     BlackboxWindow *win = (BlackboxWindow *) 0;
 289     Slit *slit = (Slit *) 0;
 290
 291     if ((win = searchWindow(e->xconfigurerequest.window))) {
 292       win->configureRequestEvent(&e->xconfigurerequest);
 293     } else if ((slit = searchSlit(e->xconfigurerequest.window))) {
 294       slit->configureRequestEvent(&e->xconfigurerequest);
 295     } else {
 296       if (validateWindow(e->xconfigurerequest.window)) {
 297         XWindowChanges xwc;
 298
 299         xwc.x = e->xconfigurerequest.x;
 300         xwc.y = e->xconfigurerequest.y;
 301         xwc.width = e->xconfigurerequest.width;
 302         xwc.height = e->xconfigurerequest.height;
 303         xwc.border_width = e->xconfigurerequest.border_width;
 304         xwc.sibling = e->xconfigurerequest.above;
 305         xwc.stack_mode = e->xconfigurerequest.detail;
 306
 307         XConfigureWindow(getXDisplay(), e->xconfigurerequest.window,
 308                          e->xconfigurerequest.value_mask, &xwc);
 309       }
 310     }
 311
 312     break;
 313   }
 314
 315   case MapRequest: {
 316 #ifdef    DEBUG
 317     fprintf(stderr, "Blackbox::process_event(): MapRequest for 0x%lx\n",
 318             e->xmaprequest.window);
 319 #endif // DEBUG
 320
 321     BlackboxWindow *win = searchWindow(e->xmaprequest.window);
 322
 323     if (! win) {
 324       BScreen *screen = searchScreen(e->xmaprequest.parent);
 325
 326       if (! screen) {
 327         /*
 328           we got a map request for a window who's parent isn't root. this
 329           can happen in only one circumstance:
 330
 331             a client window unmapped a managed window, and then remapped it
 332             somewhere between unmapping the client window and reparenting it
 333             to root.
 334
 335           regardless of how it happens, we need to find the screen that
 336           the window is on
 337         */
 338         XWindowAttributes wattrib;
 339         if (! XGetWindowAttributes(getXDisplay(), e->xmaprequest.window,
 340                                    &wattrib)) {
 341           // failed to get the window attributes, perhaps the window has
 342           // now been destroyed?
 343           break;
 344         }
 345
 346         screen = searchScreen(wattrib.root);
 347         assert(screen != 0); // this should never happen
 348       }
 349
 350       screen->manageWindow(e->xmaprequest.window);
 351     }
 352
 353     break;
 354   }
 355
 356   case UnmapNotify: {
 357     BlackboxWindow *win = (BlackboxWindow *) 0;
 358     Slit *slit = (Slit *) 0;
 359
 360     if ((win = searchWindow(e->xunmap.window))) {
 361       win->unmapNotifyEvent(&e->xunmap);
 362     } else if ((slit = searchSlit(e->xunmap.window))) {
 363       slit->unmapNotifyEvent(&e->xunmap);
 364     }
 365
 366     break;
 367   }
 368
 369   case DestroyNotify: {
 370     BlackboxWindow *win = (BlackboxWindow *) 0;
 371     Slit *slit = (Slit *) 0;
 372     BWindowGroup *group = (BWindowGroup *) 0;
 373
 374     if ((win = searchWindow(e->xdestroywindow.window))) {
 375       win->destroyNotifyEvent(&e->xdestroywindow);
 376     } else if ((slit = searchSlit(e->xdestroywindow.window))) {
 377       slit->removeClient(e->xdestroywindow.window, False);
 378     } else if ((group = searchGroup(e->xdestroywindow.window))) {
 379       delete group;
 380     }
 381
 382     break;
 383   }
 384
 385   case ReparentNotify: {
 386     /*
 387       this event is quite rare and is usually handled in unmapNotify
 388       however, if the window is unmapped when the reparent event occurs
 389       the window manager never sees it because an unmap event is not sent
 390       to an already unmapped window.
 391     */
 392     BlackboxWindow *win = searchWindow(e->xreparent.window);
 393     if (win) {
 394       win->reparentNotifyEvent(&e->xreparent);
 395     } else {
 396       Slit *slit = searchSlit(e->xreparent.window);
 397       if (slit && slit->getWindowID() != e->xreparent.parent)
 398         slit->removeClient(e->xreparent.window, True);
 399     }
 400     break;
 401   }
 402
 403   case MotionNotify: {
 404     // motion notify compression...
 405     XEvent realevent;
 406     unsigned int i = 0;
 407     while (XCheckTypedWindowEvent(getXDisplay(), e->xmotion.window,
 408                                   MotionNotify, &realevent)) {
 409       i++;
 410     }
 411
 412     // if we have compressed some motion events, use the last one
 413     if ( i > 0 )
 414       e = &realevent;
 415
 416     // strip the lock key modifiers
 417     e->xbutton.state &= ~(NumLockMask | ScrollLockMask | LockMask);
 418
 419     last_time = e->xmotion.time;
 420
 421     BlackboxWindow *win = (BlackboxWindow *) 0;
 422     Basemenu *menu = (Basemenu *) 0;
 423
 424     if ((win = searchWindow(e->xmotion.window)))
 425       win->motionNotifyEvent(&e->xmotion);
 426     else if ((menu = searchMenu(e->xmotion.window)))
 427       menu->motionNotifyEvent(&e->xmotion);
 428
 429     break;
 430   }
 431
 432   case PropertyNotify: {
 433     last_time = e->xproperty.time;
 434
 435     if (e->xproperty.state != PropertyDelete) {
 436       BlackboxWindow *win = searchWindow(e->xproperty.window);
 437
 438       if (win)
 439         win->propertyNotifyEvent(e->xproperty.atom);
 440     }
 441
 442     break;
 443   }
 444
 445   case EnterNotify: {
 446     last_time = e->xcrossing.time;
 447
 448     BScreen *screen = (BScreen *) 0;
 449     BlackboxWindow *win = (BlackboxWindow *) 0;
 450     Basemenu *menu = (Basemenu *) 0;
 451     Toolbar *tbar = (Toolbar *) 0;
 452     Slit *slit = (Slit *) 0;
 453
 454     if (e->xcrossing.mode == NotifyGrab) break;
 455
 456     XEvent dummy;
 457     scanargs sa;
 458     sa.w = e->xcrossing.window;
 459     sa.enter = sa.leave = False;
 460     XCheckIfEvent(getXDisplay(), &dummy, queueScanner, (char *) &sa);
 461
 462     if ((e->xcrossing.window == e->xcrossing.root) &&
 463         (screen = searchScreen(e->xcrossing.window))) {
 464       screen->getImageControl()->installRootColormap();
 465     } else if ((win = searchWindow(e->xcrossing.window))) {
 466       if (win->getScreen()->isSloppyFocus() &&
 467           (! win->isFocused()) && (! no_focus)) {
 468         if (((! sa.leave) || sa.inferior) && win->isVisible()) {
 469           if (win->setInputFocus())
 470             win->installColormap(True); // XXX: shouldnt we honour no install?
 471         }
 472       }
 473     } else if ((menu = searchMenu(e->xcrossing.window))) {
 474       menu->enterNotifyEvent(&e->xcrossing);
 475     } else if ((tbar = searchToolbar(e->xcrossing.window))) {
 476       tbar->enterNotifyEvent(&e->xcrossing);
 477     } else if ((slit = searchSlit(e->xcrossing.window))) {
 478       slit->enterNotifyEvent(&e->xcrossing);
 479     }
 480     break;
 481   }
 482
 483   case LeaveNotify: {
 484     last_time = e->xcrossing.time;
 485
 486     BlackboxWindow *win = (BlackboxWindow *) 0;
 487     Basemenu *menu = (Basemenu *) 0;
 488     Toolbar *tbar = (Toolbar *) 0;
 489     Slit *slit = (Slit *) 0;
 490
 491     if ((menu = searchMenu(e->xcrossing.window)))
 492       menu->leaveNotifyEvent(&e->xcrossing);
 493     else if ((win = searchWindow(e->xcrossing.window)))
 494       win->installColormap(False);
 495     else if ((tbar = searchToolbar(e->xcrossing.window)))
 496       tbar->leaveNotifyEvent(&e->xcrossing);
 497     else if ((slit = searchSlit(e->xcrossing.window)))
 498       slit->leaveNotifyEvent(&e->xcrossing);
 499     break;
 500   }
 501
 502   case Expose: {
 503     // compress expose events
 504     XEvent realevent;
 505     unsigned int i = 0;
 506     int ex1, ey1, ex2, ey2;
 507     ex1 = e->xexpose.x;
 508     ey1 = e->xexpose.y;
 509     ex2 = ex1 + e->xexpose.width - 1;
 510     ey2 = ey1 + e->xexpose.height - 1;
 511     while (XCheckTypedWindowEvent(getXDisplay(), e->xexpose.window,
 512                                   Expose, &realevent)) {
 513       i++;
 514
 515       // merge expose area
 516       ex1 = std::min(realevent.xexpose.x, ex1);
 517       ey1 = std::min(realevent.xexpose.y, ey1);
 518       ex2 = std::max(realevent.xexpose.x + realevent.xexpose.width - 1, ex2);
 519       ey2 = std::max(realevent.xexpose.y + realevent.xexpose.height - 1, ey2);
 520     }
 521     if ( i > 0 )
 522       e = &realevent;
 523
 524     // use the merged area
 525     e->xexpose.x = ex1;
 526     e->xexpose.y = ey1;
 527     e->xexpose.width = ex2 - ex1 + 1;
 528     e->xexpose.height = ey2 - ey1 + 1;
 529
 530     BlackboxWindow *win = (BlackboxWindow *) 0;
 531     Basemenu *menu = (Basemenu *) 0;
 532     Toolbar *tbar = (Toolbar *) 0;
 533
 534     if ((win = searchWindow(e->xexpose.window)))
 535       win->exposeEvent(&e->xexpose);
 536     else if ((menu = searchMenu(e->xexpose.window)))
 537       menu->exposeEvent(&e->xexpose);
 538     else if ((tbar = searchToolbar(e->xexpose.window)))
 539       tbar->exposeEvent(&e->xexpose);
 540
 541     break;
 542   }
 543
 544   case KeyPress: {
 545     Toolbar *tbar = searchToolbar(e->xkey.window);
 546
 547     if (tbar && tbar->isEditing())
 548       tbar->keyPressEvent(&e->xkey);
 549
 550     break;
 551   }
 552
 553   case ColormapNotify: {
 554     BScreen *screen = searchScreen(e->xcolormap.window);
 555
 556     if (screen)
 557       screen->setRootColormapInstalled((e->xcolormap.state ==
 558                                         ColormapInstalled) ? True : False);
 559
 560     break;
 561   }
 562
 563   case FocusIn: {
 564     if (e->xfocus.detail != NotifyNonlinear &&
 565         e->xfocus.detail != NotifyAncestor) {
 566       /*
 567         don't process FocusIns when:
 568         1. the new focus window isn't an ancestor or inferior of the old
 569         focus window (NotifyNonlinear)
 570         make sure to allow the FocusIn when the old focus window was an
 571         ancestor but didn't have a parent, such as root (NotifyAncestor)
 572       */
 573       break;
 574     }
 575
 576     BlackboxWindow *win = searchWindow(e->xfocus.window);
 577     if (win) {
 578       if (! win->isFocused())
 579         win->setFocusFlag(True);
 580
 581       /*
 582         set the event window to None.  when the FocusOut event handler calls
 583         this function recursively, it uses this as an indication that focus
 584         has moved to a known window.
 585       */
 586       e->xfocus.window = None;
 587     }
 588
 589     break;
 590   }
 591
 592   case FocusOut: {
 593     if (e->xfocus.detail != NotifyNonlinear) {
 594       /*
 595         don't process FocusOuts when:
 596         2. the new focus window isn't an ancestor or inferior of the old
 597         focus window (NotifyNonlinear)
 598       */
 599       break;
 600     }
 601
 602     BlackboxWindow *win = searchWindow(e->xfocus.window);
 603     if (win && win->isFocused()) {
 604       /*
 605         before we mark "win" as unfocused, we need to verify that focus is
 606         going to a known location, is in a known location, or set focus
 607         to a known location.
 608       */
 609
 610       XEvent event;
 611       // don't check the current focus if FocusOut was generated during a grab
 612       bool check_focus = (e->xfocus.mode == NotifyNormal);
 613
 614       /*
 615         First, check if there is a pending FocusIn event waiting.  if there
 616         is, process it and determine if focus has moved to another window
 617         (the FocusIn event handler sets the window in the event
 618         structure to None to indicate this).
 619       */
 620       if (XCheckTypedEvent(getXDisplay(), FocusIn, &event)) {
 621
 622         process_event(&event);
 623         if (event.xfocus.window == None) {
 624           // focus has moved
 625           check_focus = False;
 626         }
 627       }
 628
 629       if (check_focus) {
 630         /*
 631           Second, we query the X server for the current input focus.
 632           to make sure that we keep a consistent state.
 633         */
 634         BlackboxWindow *focus;
 635         Window w;
 636         int revert;
 637         XGetInputFocus(getXDisplay(), &w, &revert);
 638         focus = searchWindow(w);
 639         if (focus) {
 640           /*
 641             focus got from "win" to "focus" under some very strange
 642             circumstances, and we need to make sure that the focus indication
 643             is correct.
 644           */
 645           setFocusedWindow(focus);
 646         } else {
 647           // we have no idea where focus went... so we set it to somewhere
 648           setFocusedWindow(0);
 649         }
 650       }
 651     }
 652
 653     break;
 654   }
 655
 656   case ClientMessage: {
 657     if (e->xclient.format == 32) {
 658       if (e->xclient.message_type == xatom->getAtom(XAtom::wm_change_state)) {
 659         BlackboxWindow *win = searchWindow(e->xclient.window);
 660         if (! win || ! win->validateClient()) return;
 661
 662         if (e->xclient.data.l[0] == IconicState)
 663           win->iconify();
 664         if (e->xclient.data.l[0] == NormalState)
 665           win->deiconify();
 666       } else if(e->xclient.message_type == getBlackboxChangeWorkspaceAtom()) {
 667         BScreen *screen = searchScreen(e->xclient.window);
 668
 669         if (screen && e->xclient.data.l[0] >= 0 &&
 670             e->xclient.data.l[0] <
 671             static_cast<signed>(screen->getWorkspaceCount()))
 672           screen->changeWorkspaceID(e->xclient.data.l[0]);
 673       } else if (e->xclient.message_type == getBlackboxChangeWindowFocusAtom()) {
 674         BlackboxWindow *win = searchWindow(e->xclient.window);
 675
 676         if (win && win->isVisible() && win->setInputFocus())
 677           win->installColormap(True);
 678       } else if (e->xclient.message_type == getBlackboxCycleWindowFocusAtom()) {
 679         BScreen *screen = searchScreen(e->xclient.window);
 680
 681         if (screen) {
 682           if (! e->xclient.data.l[0])
 683             screen->prevFocus();
 684           else
 685             screen->nextFocus();
 686         }
 687       } else if (e->xclient.message_type == getBlackboxChangeAttributesAtom()) {
 688         BlackboxWindow *win = searchWindow(e->xclient.window);
 689
 690         if (win && win->validateClient()) {
 691           BlackboxHints net;
 692           net.flags = e->xclient.data.l[0];
 693           net.attrib = e->xclient.data.l[1];
 694           net.workspace = e->xclient.data.l[2];
 695           net.stack = e->xclient.data.l[3];
 696           net.decoration = e->xclient.data.l[4];
 697
 698           win->changeBlackboxHints(&net);
 699         }
 700       }
 701     }
 702
 703     break;
 704   }
 705
 706   case NoExpose:
 707   case ConfigureNotify:
 708   case MapNotify:
 709     break; // not handled, just ignore
 710
 711   default: {
 712 #ifdef    SHAPE
 713     if (e->type == getShapeEventBase()) {
 714       XShapeEvent *shape_event = (XShapeEvent *) e;
 715       BlackboxWindow *win = searchWindow(e->xany.window);
 716
 717       if (win)
 718         win->shapeEvent(shape_event);
 719     }
 720 #endif // SHAPE
 721   }
 722   } // switch
 723 }
 724
 725
 726 bool Blackbox::handleSignal(int sig) {
 727   switch (sig) {
 728   case SIGHUP:
 729   case SIGUSR1:
 730     reconfigure();
 731     break;
 732
 733   case SIGUSR2:
 734     rereadMenu();
 735     break;
 736
 737   case SIGPIPE:
 738   case SIGSEGV:
 739   case SIGFPE:
 740   case SIGINT:
 741   case SIGTERM:
 742     shutdown();
 743
 744   default:
 745     return False;
 746   }
 747
 748   return True;
 749 }
 750
 751
 752 bool Blackbox::validateWindow(Window window) {
 753   XEvent event;
 754   if (XCheckTypedWindowEvent(getXDisplay(), window, DestroyNotify, &event)) {
 755     XPutBackEvent(getXDisplay(), &event);
 756
 757     return False;
 758   }
 759
 760   return True;
 761 }
 762
 763
 764 BScreen *Blackbox::searchScreen(Window window) {
 765   ScreenList::iterator it = screenList.begin();
 766
 767   for (; it != screenList.end(); ++it) {
 768     BScreen *s = *it;
 769     if (s->getRootWindow() == window)
 770       return s;
 771   }
 772
 773   return (BScreen *) 0;
 774 }
 775
 776
 777 BlackboxWindow *Blackbox::searchWindow(Window window) {
 778   WindowLookup::iterator it = windowSearchList.find(window);
 779   if (it != windowSearchList.end())
 780     return it->second;
 781
 782   return (BlackboxWindow*) 0;
 783 }
 784
 785
 786 BWindowGroup *Blackbox::searchGroup(Window window) {
 787   GroupLookup::iterator it = groupSearchList.find(window);
 788   if (it != groupSearchList.end())
 789     return it->second;
 790
 791   return (BWindowGroup *) 0;
 792 }
 793
 794
 795 Basemenu *Blackbox::searchMenu(Window window) {
 796   MenuLookup::iterator it = menuSearchList.find(window);
 797   if (it != menuSearchList.end())
 798     return it->second;
 799
 800   return (Basemenu*) 0;
 801 }
 802
 803
 804 Toolbar *Blackbox::searchToolbar(Window window) {
 805   ToolbarLookup::iterator it = toolbarSearchList.find(window);
 806   if (it != toolbarSearchList.end())
 807     return it->second;
 808
 809   return (Toolbar*) 0;
 810 }
 811
 812
 813 Slit *Blackbox::searchSlit(Window window) {
 814   SlitLookup::iterator it = slitSearchList.find(window);
 815   if (it != slitSearchList.end())
 816     return it->second;
 817
 818   return (Slit*) 0;
 819 }
 820
 821
 822 void Blackbox::saveWindowSearch(Window window, BlackboxWindow *data) {
 823   windowSearchList.insert(WindowLookupPair(window, data));
 824 }
 825
 826
 827 void Blackbox::saveGroupSearch(Window window, BWindowGroup *data) {
 828   groupSearchList.insert(GroupLookupPair(window, data));
 829 }
 830
 831
 832 void Blackbox::saveMenuSearch(Window window, Basemenu *data) {
 833   menuSearchList.insert(MenuLookupPair(window, data));
 834 }
 835
 836
 837 void Blackbox::saveToolbarSearch(Window window, Toolbar *data) {
 838   toolbarSearchList.insert(ToolbarLookupPair(window, data));
 839 }
 840
 841
 842 void Blackbox::saveSlitSearch(Window window, Slit *data) {
 843   slitSearchList.insert(SlitLookupPair(window, data));
 844 }
 845
 846
 847 void Blackbox::removeWindowSearch(Window window) {
 848   windowSearchList.erase(window);
 849 }
 850
 851
 852 void Blackbox::removeGroupSearch(Window window) {
 853   groupSearchList.erase(window);
 854 }
 855
 856
 857 void Blackbox::removeMenuSearch(Window window) {
 858   menuSearchList.erase(window);
 859 }
 860
 861
 862 void Blackbox::removeToolbarSearch(Window window) {
 863   toolbarSearchList.erase(window);
 864 }
 865
 866
 867 void Blackbox::removeSlitSearch(Window window) {
 868   slitSearchList.erase(window);
 869 }
 870
 871
 872 void Blackbox::restart(const char *prog) {
 873   shutdown();
 874
 875   if (prog) {
 876     execlp(prog, prog, NULL);
 877     perror(prog);
 878   }
 879
 880   // fall back in case the above execlp doesn't work
 881   execvp(argv[0], argv);
 882   string name = basename(argv[0]);
 883   execvp(name.c_str(), argv);
 884 }
 885
 886
 887 void Blackbox::shutdown(void) {
 888   BaseDisplay::shutdown();
 889
 890   XSetInputFocus(getXDisplay(), PointerRoot, None, CurrentTime);
 891
 892   std::for_each(screenList.begin(), screenList.end(),
 893                 std::mem_fun(&BScreen::shutdown));
 894
 895   XSync(getXDisplay(), False);
 896 }
 897
 898
 899 void Blackbox::saveWindowToWindowSnap(bool s) {
 900   resource.window_to_window_snap = s;
 901   config.setValue("session.windowToWindowSnap", resource.window_to_window_snap);
 902 }
 903
 904
 905 void Blackbox::saveWindowCornerSnap(bool s) {
 906   resource.window_corner_snap = s;
 907   config.setValue("session.windowCornerSnap", resource.window_corner_snap);
 908 }
 909
 910
 911 /*
 912  * Save all values as they are so that the defaults will be written to the rc
 913  * file
 914  */
 915 void Blackbox::save_rc(void) {
 916   config.setAutoSave(false);
 917
 918   config.setValue("session.colorsPerChannel", resource.colors_per_channel);
 919   config.setValue("session.doubleClickInterval",
 920                   resource.double_click_interval);
 921   config.setValue("session.autoRaiseDelay",
 922                   ((resource.auto_raise_delay.tv_sec * 1000) +
 923                    (resource.auto_raise_delay.tv_usec / 1000)));
 924   config.setValue("session.cacheLife", resource.cache_life / 60000);
 925   config.setValue("session.cacheMax", resource.cache_max);
 926   config.setValue("session.styleFile", resource.style_file);
 927   config.setValue("session.titlebarLayout", resource.titlebar_layout);
 928   saveWindowToWindowSnap(resource.window_to_window_snap);
 929   saveWindowCornerSnap(resource.window_corner_snap);
 930
 931   std::for_each(screenList.begin(), screenList.end(),
 932                 std::mem_fun(&BScreen::save_rc));
 933
 934   config.setAutoSave(true);
 935   config.save();
 936 }
 937
 938
 939 void Blackbox::load_rc(void) {
 940   if (! config.load())
 941         config.create();
 942
 943   string s;
 944
 945   if (! config.getValue("session.colorsPerChannel",
 946                         resource.colors_per_channel))
 947     resource.colors_per_channel = 4;
 948   if (resource.colors_per_channel < 2) resource.colors_per_channel = 2;
 949   else if (resource.colors_per_channel > 6) resource.colors_per_channel = 6;
 950
 951   if (config.getValue("session.styleFile", s))
 952     resource.style_file = expandTilde(s);
 953   else
 954     resource.style_file = DEFAULTSTYLE;
 955
 956   if (! config.getValue("session.doubleClickInterval",
 957                        resource.double_click_interval));
 958     resource.double_click_interval = 250;
 959
 960   if (! config.getValue("session.autoRaiseDelay",
 961                        resource.auto_raise_delay.tv_usec))
 962     resource.auto_raise_delay.tv_usec = 400;
 963   resource.auto_raise_delay.tv_sec = resource.auto_raise_delay.tv_usec / 1000;
 964   resource.auto_raise_delay.tv_usec -=
 965     (resource.auto_raise_delay.tv_sec * 1000);
 966   resource.auto_raise_delay.tv_usec *= 1000;
 967
 968   if (! config.getValue("session.cacheLife", resource.cache_life))
 969     resource.cache_life = 5;
 970   resource.cache_life *= 60000;
 971
 972   if (! config.getValue("session.cacheMax", resource.cache_max))
 973     resource.cache_max = 200;
 974
 975   if (! config.getValue("session.titlebarLayout", resource.titlebar_layout))
 976     resource.titlebar_layout = "ILMC";
 977
 978   if (! config.getValue("session.windowToWindowSnap",
 979                         resource.window_to_window_snap))
 980     resource.window_to_window_snap = true;
 981
 982   if (! config.getValue("session.windowCornerSnap",
 983                         resource.window_corner_snap))
 984     resource.window_corner_snap = true;
 985 }
 986
 987
 988 void Blackbox::reconfigure(void) {
 989   reconfigure_wait = True;
 990
 991   if (! timer->isTiming()) timer->start();
 992 }
 993
 994
 995 void Blackbox::real_reconfigure(void) {
 996   load_rc();
 997
 998   std::for_each(menuTimestamps.begin(), menuTimestamps.end(),
 999                 PointerAssassin());
1000   menuTimestamps.clear();
1001
1002   gcCache()->purge();
1003
1004   std::for_each(screenList.begin(), screenList.end(),
1005                 std::mem_fun(&BScreen::reconfigure));
1006 }
1007
1008
1009 void Blackbox::checkMenu(void) {
1010   bool reread = False;
1011   MenuTimestampList::iterator it = menuTimestamps.begin();
1012   for(; it != menuTimestamps.end(); ++it) {
1013     MenuTimestamp *tmp = *it;
1014     struct stat buf;
1015
1016     if (! stat(tmp->filename.c_str(), &buf)) {
1017       if (tmp->timestamp != buf.st_ctime)
1018         reread = True;
1019     } else {
1020       reread = True;
1021     }
1022   }
1023
1024   if (reread) rereadMenu();
1025 }
1026
1027
1028 void Blackbox::rereadMenu(void) {
1029   reread_menu_wait = True;
1030
1031   if (! timer->isTiming()) timer->start();
1032 }
1033
1034
1035 void Blackbox::real_rereadMenu(void) {
1036   std::for_each(menuTimestamps.begin(), menuTimestamps.end(),
1037                 PointerAssassin());
1038   menuTimestamps.clear();
1039
1040   std::for_each(screenList.begin(), screenList.end(),
1041                 std::mem_fun(&BScreen::rereadMenu));
1042 }
1043
1044
1045 void Blackbox::saveStyleFilename(const string& filename) {
1046   assert(! filename.empty());
1047   resource.style_file = filename;
1048   config.setValue("session.styleFile", resource.style_file);
1049 }
1050
1051
1052 void Blackbox::addMenuTimestamp(const string& filename) {
1053   assert(! filename.empty());
1054   bool found = False;
1055
1056   MenuTimestampList::iterator it = menuTimestamps.begin();
1057   for (; it != menuTimestamps.end() && ! found; ++it) {
1058     if ((*it)->filename == filename) found = True;
1059   }
1060   if (! found) {
1061     struct stat buf;
1062
1063     if (! stat(filename.c_str(), &buf)) {
1064       MenuTimestamp *ts = new MenuTimestamp;
1065
1066       ts->filename = filename;
1067       ts->timestamp = buf.st_ctime;
1068
1069       menuTimestamps.push_back(ts);
1070     }
1071   }
1072 }
1073
1074
1075 void Blackbox::timeout(void) {
1076   if (reconfigure_wait)
1077     real_reconfigure();
1078
1079   if (reread_menu_wait)
1080     real_rereadMenu();
1081
1082   reconfigure_wait = reread_menu_wait = False;
1083 }
1084
1085
1086 void Blackbox::setFocusedWindow(BlackboxWindow *win) {
1087   if (focused_window && focused_window == win) // nothing to do
1088     return;
1089
1090   BScreen *old_screen = 0;
1091
1092   if (focused_window) {
1093     focused_window->setFocusFlag(False);
1094     old_screen = focused_window->getScreen();
1095   }
1096
1097   if (win && ! win->isIconic()) {
1098     // the active screen is the one with the last focused window...
1099     // this will keep focus on this screen no matter where the mouse goes,
1100     // so multihead keybindings will continue to work on that screen until the
1101     // user focuses a window on a different screen.
1102     active_screen = win->getScreen();
1103     focused_window = win;
1104   } else {
1105     focused_window = 0;
1106     if (! old_screen) {
1107       if (active_screen) {
1108         // set input focus to the toolbar of the screen with mouse
1109         XSetInputFocus(getXDisplay(),
1110                        active_screen->getRootWindow(),
1111                        RevertToPointerRoot, CurrentTime);
1112       } else {
1113         // set input focus to the toolbar of the first managed screen
1114         XSetInputFocus(getXDisplay(),
1115                        screenList.front()->getRootWindow(),
1116                        RevertToPointerRoot, CurrentTime);
1117       }
1118     } else {
1119       // set input focus to the toolbar of the last screen
1120       XSetInputFocus(getXDisplay(), old_screen->getRootWindow(),
1121                      RevertToPointerRoot, CurrentTime);
1122     }
1123   }
1124
1125   if (active_screen && active_screen->isScreenManaged()) {
1126     active_screen->getToolbar()->redrawWindowLabel(True);
1127     active_screen->updateNetizenWindowFocus();
1128   }
1129
1130   if (old_screen && old_screen != active_screen) {
1131     old_screen->getToolbar()->redrawWindowLabel(True);
1132     old_screen->updateNetizenWindowFocus();
1133   }
1134 }