src/screen.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #include "config.h"
   4
   5 #include "screen.hh"
   6 #include "client.hh"
   7 #include "openbox.hh"
   8 #include "frame.hh"
   9 #include "bindings.hh"
  10 #include "python.hh"
  11 #include "otk/display.hh"
  12 #include "otk/property.hh"
  13
  14 extern "C" {
  15 #ifdef    HAVE_UNISTD_H
  16 #  include <sys/types.h>
  17 #  include <unistd.h>
  18 #endif // HAVE_UNISTD_H
  19
  20 #include "gettext.h"
  21 #define _(str) gettext(str)
  22 }
  23
  24 #include <vector>
  25 #include <algorithm>
  26 #include <cstdio>
  27 #include <cstring>
  28
  29 static bool running;
  30 static int anotherWMRunning(Display *display, XErrorEvent *) {
  31   printf(_("Another window manager already running on display %s.\n"),
  32          DisplayString(display));
  33   running = true;
  34   return -1;
  35 }
  36
  37
  38 namespace ob {
  39
  40
  41 Screen::Screen(int screen)
  42   : _number(screen)
  43 {
  44   assert(screen >= 0); assert(screen < ScreenCount(**otk::display));
  45   _info = otk::display->screenInfo(screen);
  46
  47   ::running = false;
  48   XErrorHandler old = XSetErrorHandler(::anotherWMRunning);
  49   XSelectInput(**otk::display, _info->rootWindow(),
  50                Screen::event_mask);
  51   XSync(**otk::display, false);
  52   XSetErrorHandler(old);
  53
  54   _managed = !::running;
  55   if (! _managed) return; // was unable to manage the screen
  56
  57 #ifdef DEBUG
  58   printf(_("Managing screen %d: visual 0x%lx, depth %d\n"),
  59          _number, XVisualIDFromVisual(_info->visual()), _info->depth());
  60 #endif
  61
  62   otk::Property::set(_info->rootWindow(), otk::Property::atoms.openbox_pid,
  63                      otk::Property::atoms.cardinal, (unsigned long) getpid());
  64
  65   // set the mouse cursor for the root window (the default cursor)
  66   XDefineCursor(**otk::display, _info->rootWindow(),
  67                 openbox->cursors().session);
  68
  69   // XXX: initialize the screen's style
  70   /*
  71   otk::ustring stylepath;
  72   python_get_string("THEME", &stylepath);
  73   otk::Configuration sconfig(false);
  74   sconfig.setFile(otk::expandTilde(stylepath.c_str()));
  75   if (!sconfig.load()) {
  76     sconfig.setFile(otk::expandTilde(DEFAULTSTYLE));
  77     if (!sconfig.load()) {
  78       printf(_("Unable to load default style: %s. Aborting.\n"), DEFAULTSTYLE);
  79       ::exit(1);
  80     }
  81   }
  82   _style.load(sconfig);
  83   */
  84   otk::display->renderControl(_number)->
  85     drawRoot(*otk::RenderStyle::style(_number)->rootColor());
  86
  87   // set up notification of netwm support
  88   changeSupportedAtoms();
  89
  90   // Set the netwm properties for geometry
  91   unsigned long geometry[] = { _info->size().width(),
  92                                _info->size().height() };
  93   otk::Property::set(_info->rootWindow(),
  94                      otk::Property::atoms.net_desktop_geometry,
  95                      otk::Property::atoms.cardinal, geometry, 2);
  96
  97   // Set the net_desktop_names property
  98   std::vector<otk::ustring> names;
  99   python_get_stringlist("DESKTOP_NAMES", &names);
 100   otk::Property::set(_info->rootWindow(),
 101                      otk::Property::atoms.net_desktop_names,
 102                      otk::Property::utf8, names);
 103   // the above set() will cause the updateDesktopNames to fire right away so
 104   // we have a list of desktop names
 105
 106   _desktop = 0;
 107
 108   if (!python_get_long("NUMBER_OF_DESKTOPS", (long*)&_num_desktops))
 109     _num_desktops = 1;
 110   changeNumDesktops(_num_desktops); // set the hint
 111
 112   changeDesktop(0); // set the hint
 113
 114   // don't start in showing-desktop mode
 115   _showing_desktop = false;
 116   otk::Property::set(_info->rootWindow(),
 117                      otk::Property::atoms.net_showing_desktop,
 118                      otk::Property::atoms.cardinal, 0);
 119
 120   // create the window which gets focus when no clients get it
 121   XSetWindowAttributes attr;
 122   attr.override_redirect = true;
 123   _focuswindow = XCreateWindow(**otk::display, _info->rootWindow(),
 124                                -100, -100, 1, 1, 0, 0, InputOnly,
 125                                _info->visual(), CWOverrideRedirect, &attr);
 126   XMapRaised(**otk::display, _focuswindow);
 127
 128   // these may be further updated if any pre-existing windows are found in
 129   // the manageExising() function
 130   changeClientList();  // initialize the client lists, which will be empty
 131
 132   updateDesktopLayout();
 133
 134   // register this class as the event handler for the root window
 135   openbox->registerHandler(_info->rootWindow(), this);
 136
 137   // call the python Startup callbacks
 138   EventData data(_number, 0, EventAction::Startup, 0);
 139   openbox->bindings()->fireEvent(&data);
 140 }
 141
 142
 143 Screen::~Screen()
 144 {
 145   if (! _managed) return;
 146
 147   XSelectInput(**otk::display, _info->rootWindow(), NoEventMask);
 148
 149   // unmanage all windows
 150   while (!clients.empty())
 151     unmanageWindow(clients.front());
 152
 153   // call the python Shutdown callbacks
 154   EventData data(_number, 0, EventAction::Shutdown, 0);
 155   openbox->bindings()->fireEvent(&data);
 156
 157   XDestroyWindow(**otk::display, _focuswindow);
 158   XDestroyWindow(**otk::display, _supportwindow);
 159 }
 160
 161
 162 void Screen::manageExisting()
 163 {
 164   unsigned int i, j, nchild;
 165   Window r, p, *children;
 166   XQueryTree(**otk::display, _info->rootWindow(), &r, &p,
 167              &children, &nchild);
 168
 169   // preen the window list of all icon windows... for better dockapp support
 170   for (i = 0; i < nchild; i++) {
 171     if (children[i] == None) continue;
 172
 173     XWMHints *wmhints = XGetWMHints(**otk::display,
 174                                     children[i]);
 175
 176     if (wmhints) {
 177       if ((wmhints->flags & IconWindowHint) &&
 178           (wmhints->icon_window != children[i])) {
 179         for (j = 0; j < nchild; j++) {
 180           if (children[j] == wmhints->icon_window) {
 181             children[j] = None;
 182             break;
 183           }
 184         }
 185       }
 186
 187       XFree(wmhints);
 188     }
 189   }
 190
 191   // manage shown windows
 192   for (i = 0; i < nchild; ++i) {
 193     if (children[i] == None)
 194       continue;
 195
 196     XWindowAttributes attrib;
 197     if (XGetWindowAttributes(**otk::display, children[i], &attrib)) {
 198       if (attrib.override_redirect) continue;
 199
 200       if (attrib.map_state != IsUnmapped) {
 201         manageWindow(children[i]);
 202       }
 203     }
 204   }
 205
 206   XFree(children);
 207 }
 208
 209 void Screen::updateDesktopLayout()
 210 {
 211   //const unsigned long _NET_WM_ORIENTATION_HORZ = 0;
 212   const unsigned long _NET_WM_ORIENTATION_VERT = 1;
 213   //const unsigned long _NET_WM_TOPLEFT = 0;
 214   const unsigned long _NET_WM_TOPRIGHT = 1;
 215   const unsigned long _NET_WM_BOTTOMRIGHT = 2;
 216   const unsigned long _NET_WM_BOTTOMLEFT = 3;
 217
 218   // defaults
 219   _layout.orientation = DesktopLayout::Horizontal;
 220   _layout.start_corner = DesktopLayout::TopLeft;
 221   _layout.rows = 1;
 222   _layout.columns = _num_desktops;
 223
 224   unsigned long *data, num = 4;
 225   if (otk::Property::get(_info->rootWindow(),
 226                          otk::Property::atoms.net_desktop_layout,
 227                          otk::Property::atoms.cardinal,
 228                          &num, &data)) {
 229     if (num >= 4) {
 230       if (data[0] == _NET_WM_ORIENTATION_VERT)
 231         _layout.orientation = DesktopLayout::Vertical;
 232       if (data[3] == _NET_WM_TOPRIGHT)
 233         _layout.start_corner = DesktopLayout::TopRight;
 234       else if (data[3] == _NET_WM_BOTTOMRIGHT)
 235         _layout.start_corner = DesktopLayout::BottomRight;
 236       else if (data[3] == _NET_WM_BOTTOMLEFT)
 237         _layout.start_corner = DesktopLayout::BottomLeft;
 238
 239       // fill in a zero rows/columns
 240       if (!(data[1] == 0 && data[2] == 0)) { // both 0's is bad data..
 241         if (data[1] == 0) {
 242           data[1] = (_num_desktops + _num_desktops % data[2]) / data[2];
 243         } else if (data[2] == 0) {
 244           data[2] = (_num_desktops + _num_desktops % data[1]) / data[1];
 245         }
 246         _layout.columns = data[1];
 247         _layout.rows = data[2];
 248       }
 249
 250       // bounds checking
 251       if (_layout.orientation == DesktopLayout::Horizontal) {
 252         if (_layout.rows > _num_desktops) _layout.rows = _num_desktops;
 253         if (_layout.columns > (_num_desktops + _num_desktops % _layout.rows) /
 254             _layout.rows)
 255           _layout.columns = (_num_desktops + _num_desktops % _layout.rows) /
 256             _layout.rows;
 257       } else {
 258         if (_layout.columns > _num_desktops) _layout.columns = _num_desktops;
 259         if (_layout.rows > (_num_desktops + _num_desktops % _layout.columns) /
 260             _layout.columns)
 261           _layout.rows = (_num_desktops + _num_desktops % _layout.columns) /
 262             _layout.columns;
 263       }
 264     }
 265     delete [] data;
 266   }
 267 }
 268
 269 void Screen::updateStruts()
 270 {
 271   struct ApplyStrut {
 272     void operator()(otk::Strut &self, const otk::Strut &other) {
 273       self.left = std::max(self.left, other.left);
 274       self.right = std::max(self.right, other.right);
 275       self.top = std::max(self.top, other.top);
 276       self.bottom = std::max(self.bottom, other.bottom);
 277     }
 278   } apply;
 279
 280   StrutList::iterator sit, send = _struts.end();
 281   // reset them all
 282   for (sit = _struts.begin(); sit != send; ++sit)
 283     sit->left = sit->right = sit->top = sit->bottom = 0;
 284
 285   ClientList::const_iterator it, end = clients.end();
 286   for (it = clients.begin(); it != end; ++it) {
 287     if ((*it)->iconic()) continue; // these dont count in the strut
 288
 289     unsigned int desk = (*it)->desktop();
 290     const otk::Strut &s = (*it)->strut();
 291
 292     if (desk == 0xffffffff)
 293       for (unsigned int i = 0, e = _struts.size(); i < e; ++i)
 294         apply(_struts[i], s);
 295     else if (desk < _struts.size())
 296       apply(_struts[desk], s);
 297     else
 298       assert(false); // invalid desktop otherwise..
 299     // apply to the 'all desktops' strut
 300     apply(_struts.back(), s);
 301   }
 302   changeWorkArea();
 303 }
 304
 305
 306 void Screen::changeWorkArea()
 307 {
 308   unsigned long *dims = new unsigned long[4 * _num_desktops];
 309   for (unsigned int i = 0; i < _num_desktops + 1; ++i) {
 310     otk::Rect old_area = _area[i];
 311 /*
 312 #ifdef    XINERAMA
 313   // reset to the full areas
 314   if (isXineramaActive())
 315     xineramaUsableArea = getXineramaAreas();
 316 #endif // XINERAMA
 317 */
 318
 319     _area[i] = otk::Rect(_struts[i].left, _struts[i].top,
 320                          _info->size().width() - (_struts[i].left +
 321                                                   _struts[i].right),
 322                          _info->size().height() - (_struts[i].top +
 323                                                    _struts[i].bottom));
 324
 325 /*
 326 #ifdef    XINERAMA
 327   if (isXineramaActive()) {
 328     // keep each of the ximerama-defined areas inside the strut
 329     RectList::iterator xit, xend = xineramaUsableArea.end();
 330     for (xit = xineramaUsableArea.begin(); xit != xend; ++xit) {
 331       if (xit->x() < usableArea.x()) {
 332         xit->setX(usableArea.x());
 333         xit->setWidth(xit->width() - usableArea.x());
 334       }
 335       if (xit->y() < usableArea.y()) {
 336         xit->setY(usableArea.y());
 337         xit->setHeight(xit->height() - usableArea.y());
 338       }
 339       if (xit->x() + xit->width() > usableArea.width())
 340         xit->setWidth(usableArea.width() - xit->x());
 341       if (xit->y() + xit->height() > usableArea.height())
 342         xit->setHeight(usableArea.height() - xit->y());
 343     }
 344   }
 345 #endif // XINERAMA
 346 */
 347     if (old_area != _area[i]) {
 348       // the area has changed, adjust all the maximized windows
 349       ClientList::iterator it, end = clients.end();
 350       for (it = clients.begin(); it != end; ++it)
 351         if (i < _num_desktops) {
 352           if ((*it)->desktop() == i)
 353             (*it)->remaximize();
 354         } else {
 355           // the 'all desktops' size
 356           if ((*it)->desktop() == 0xffffffff)
 357             (*it)->remaximize();
 358         }
 359     }
 360
 361     // don't set these for the 'all desktops' area
 362     if (i < _num_desktops) {
 363       dims[(i * 4) + 0] = _area[i].x();
 364       dims[(i * 4) + 1] = _area[i].y();
 365       dims[(i * 4) + 2] = _area[i].width();
 366       dims[(i * 4) + 3] = _area[i].height();
 367     }
 368   }
 369   otk::Property::set(_info->rootWindow(), otk::Property::atoms.net_workarea,
 370                      otk::Property::atoms.cardinal, dims, 4 * _num_desktops);
 371   delete [] dims;
 372 }
 373
 374
 375 void Screen::changeSupportedAtoms()
 376 {
 377   // create the netwm support window
 378   _supportwindow = XCreateSimpleWindow(**otk::display,
 379                                        _info->rootWindow(),
 380                                        0, 0, 1, 1, 0, 0, 0);
 381
 382   // set supporting window
 383   otk::Property::set(_info->rootWindow(),
 384                      otk::Property::atoms.net_supporting_wm_check,
 385                      otk::Property::atoms.window, _supportwindow);
 386
 387   //set properties on the supporting window
 388   otk::Property::set(_supportwindow, otk::Property::atoms.net_wm_name,
 389                      otk::Property::utf8, "Openbox");
 390   otk::Property::set(_supportwindow,
 391                      otk::Property::atoms.net_supporting_wm_check,
 392                      otk::Property::atoms.window, _supportwindow);
 393
 394
 395   Atom supported[] = {
 396     otk::Property::atoms.net_current_desktop,
 397     otk::Property::atoms.net_number_of_desktops,
 398     otk::Property::atoms.net_desktop_geometry,
 399     otk::Property::atoms.net_desktop_viewport,
 400     otk::Property::atoms.net_active_window,
 401     otk::Property::atoms.net_workarea,
 402     otk::Property::atoms.net_client_list,
 403     otk::Property::atoms.net_client_list_stacking,
 404     otk::Property::atoms.net_desktop_names,
 405     otk::Property::atoms.net_close_window,
 406     otk::Property::atoms.net_desktop_layout,
 407     otk::Property::atoms.net_showing_desktop,
 408     otk::Property::atoms.net_wm_name,
 409     otk::Property::atoms.net_wm_visible_name,
 410     otk::Property::atoms.net_wm_icon_name,
 411     otk::Property::atoms.net_wm_visible_icon_name,
 412     otk::Property::atoms.net_wm_desktop,
 413     otk::Property::atoms.net_wm_strut,
 414     otk::Property::atoms.net_wm_window_type,
 415     otk::Property::atoms.net_wm_window_type_desktop,
 416     otk::Property::atoms.net_wm_window_type_dock,
 417     otk::Property::atoms.net_wm_window_type_toolbar,
 418     otk::Property::atoms.net_wm_window_type_menu,
 419     otk::Property::atoms.net_wm_window_type_utility,
 420     otk::Property::atoms.net_wm_window_type_splash,
 421     otk::Property::atoms.net_wm_window_type_dialog,
 422     otk::Property::atoms.net_wm_window_type_normal,
 423 /*
 424     otk::Property::atoms.net_wm_moveresize,
 425     otk::Property::atoms.net_wm_moveresize_size_topleft,
 426     otk::Property::atoms.net_wm_moveresize_size_topright,
 427     otk::Property::atoms.net_wm_moveresize_size_bottomleft,
 428     otk::Property::atoms.net_wm_moveresize_size_bottomright,
 429     otk::Property::atoms.net_wm_moveresize_move,
 430 */
 431     otk::Property::atoms.net_wm_allowed_actions,
 432     otk::Property::atoms.net_wm_action_move,
 433     otk::Property::atoms.net_wm_action_resize,
 434     otk::Property::atoms.net_wm_action_minimize,
 435     otk::Property::atoms.net_wm_action_shade,
 436 /*    otk::Property::atoms.net_wm_action_stick,*/
 437     otk::Property::atoms.net_wm_action_maximize_horz,
 438     otk::Property::atoms.net_wm_action_maximize_vert,
 439     otk::Property::atoms.net_wm_action_fullscreen,
 440     otk::Property::atoms.net_wm_action_change_desktop,
 441     otk::Property::atoms.net_wm_action_close,
 442
 443     otk::Property::atoms.net_wm_state,
 444     otk::Property::atoms.net_wm_state_modal,
 445     otk::Property::atoms.net_wm_state_maximized_vert,
 446     otk::Property::atoms.net_wm_state_maximized_horz,
 447     otk::Property::atoms.net_wm_state_shaded,
 448     otk::Property::atoms.net_wm_state_skip_taskbar,
 449     otk::Property::atoms.net_wm_state_skip_pager,
 450     otk::Property::atoms.net_wm_state_hidden,
 451     otk::Property::atoms.net_wm_state_fullscreen,
 452     otk::Property::atoms.net_wm_state_above,
 453     otk::Property::atoms.net_wm_state_below,
 454   };
 455   const int num_supported = sizeof(supported)/sizeof(Atom);
 456
 457   otk::Property::set(_info->rootWindow(), otk::Property::atoms.net_supported,
 458                      otk::Property::atoms.atom, supported, num_supported);
 459 }
 460
 461
 462 void Screen::changeClientList()
 463 {
 464   Window *windows;
 465   unsigned int size = clients.size();
 466
 467   // create an array of the window ids
 468   if (size > 0) {
 469     Window *win_it;
 470
 471     windows = new Window[size];
 472     win_it = windows;
 473     ClientList::const_iterator it = clients.begin();
 474     const ClientList::const_iterator end = clients.end();
 475     for (; it != end; ++it, ++win_it)
 476       *win_it = (*it)->window();
 477   } else
 478     windows = (Window*) 0;
 479
 480   otk::Property::set(_info->rootWindow(), otk::Property::atoms.net_client_list,
 481                      otk::Property::atoms.window, windows, size);
 482
 483   if (size)
 484     delete [] windows;
 485
 486   changeStackingList();
 487 }
 488
 489
 490 void Screen::changeStackingList()
 491 {
 492   Window *windows;
 493   unsigned int size = _stacking.size();
 494
 495   assert(size == clients.size()); // just making sure.. :)
 496
 497
 498   // create an array of the window ids (from bottom to top, reverse order!)
 499   if (size > 0) {
 500     Window *win_it;
 501
 502     windows = new Window[size];
 503     win_it = windows;
 504     ClientList::const_reverse_iterator it = _stacking.rbegin();
 505     const ClientList::const_reverse_iterator end = _stacking.rend();
 506     for (; it != end; ++it, ++win_it)
 507       *win_it = (*it)->window();
 508   } else
 509     windows = (Window*) 0;
 510
 511   otk::Property::set(_info->rootWindow(),
 512                      otk::Property::atoms.net_client_list_stacking,
 513                      otk::Property::atoms.window, windows, size);
 514
 515   if (size)
 516     delete [] windows;
 517 }
 518
 519
 520 void Screen::manageWindow(Window window)
 521 {
 522   Client *client = 0;
 523   XWMHints *wmhint;
 524   XSetWindowAttributes attrib_set;
 525   XEvent e;
 526   XWindowAttributes attrib;
 527
 528   otk::display->grab();
 529
 530   // check if it has already been unmapped by the time we started mapping
 531   // the grab does a sync so we don't have to here
 532   if (XCheckTypedWindowEvent(**otk::display, window, DestroyNotify, &e) ||
 533       XCheckTypedWindowEvent(**otk::display, window, UnmapNotify, &e)) {
 534     XPutBackEvent(**otk::display, &e);
 535
 536     otk::display->ungrab();
 537     return; // don't manage it
 538   }
 539
 540   if (!XGetWindowAttributes(**otk::display, window, &attrib) ||
 541       attrib.override_redirect) {
 542     otk::display->ungrab();
 543     return; // don't manage it
 544   }
 545
 546   // is the window a docking app
 547   if ((wmhint = XGetWMHints(**otk::display, window))) {
 548     if ((wmhint->flags & StateHint) &&
 549         wmhint->initial_state == WithdrawnState) {
 550       //slit->addClient(w); // XXX: make dock apps work!
 551
 552       otk::display->ungrab();
 553       XFree(wmhint);
 554       return;
 555     }
 556     XFree(wmhint);
 557   }
 558
 559   // choose the events we want to receive on the CLIENT window
 560   attrib_set.event_mask = Client::event_mask;
 561   attrib_set.do_not_propagate_mask = Client::no_propagate_mask;
 562   XChangeWindowAttributes(**otk::display, window,
 563                           CWEventMask|CWDontPropagate, &attrib_set);
 564
 565   // create the Client class, which gets all of the hints on the window
 566   client = new Client(_number, window);
 567   // register for events
 568   openbox->registerHandler(window, client);
 569   // add to the wm's map
 570   openbox->addClient(window, client);
 571
 572   // we dont want a border on the client
 573   client->toggleClientBorder(false);
 574
 575   // specify that if we exit, the window should not be destroyed and should be
 576   // reparented back to root automatically
 577   XChangeSaveSet(**otk::display, window, SetModeInsert);
 578
 579   // create the decoration frame for the client window
 580   client->frame = new Frame(client);
 581   // register the plate for events (map req's)
 582   // this involves removing itself from the handler list first, since it is
 583   // auto added to the list, being a widget. we won't get any events on the
 584   // plate except for events for the client (SubstructureRedirectMask)
 585   openbox->clearHandler(client->frame->plate());
 586   openbox->registerHandler(client->frame->plate(), client);
 587
 588   // add to the wm's map
 589   Window *w = client->frame->allWindows();
 590   for (unsigned int i = 0; w[i]; ++i)
 591     openbox->addClient(w[i], client);
 592   delete [] w;
 593
 594   // reparent the client to the frame
 595   client->frame->grabClient();
 596
 597   if (openbox->state() != Openbox::State_Starting) {
 598     // position the window intelligenty .. hopefully :)
 599     // call the python PLACEWINDOW binding
 600     EventData data(_number, client, EventAction::PlaceWindow, 0);
 601     openbox->bindings()->fireEvent(&data);
 602   }
 603
 604   EventData ddata(_number, client, EventAction::DisplayingWindow, 0);
 605   openbox->bindings()->fireEvent(&ddata);
 606
 607   client->showhide();
 608
 609   client->applyStartupState();
 610
 611   otk::display->ungrab();
 612
 613   // add to the screen's list
 614   clients.push_back(client);
 615   // once the client is in the list, update our strut to include the new
 616   // client's (it is good that this happens after window placement!)
 617   updateStruts();
 618   // this puts into the stacking order, then raises it
 619   _stacking.push_back(client);
 620   raiseWindow(client);
 621   // update the root properties
 622   changeClientList();
 623
 624   openbox->bindings()->grabButtons(true, client);
 625
 626   EventData ndata(_number, client, EventAction::NewWindow, 0);
 627   openbox->bindings()->fireEvent(&ndata);
 628
 629 #ifdef DEBUG
 630   printf("Managed window 0x%lx frame 0x%lx\n",
 631          window, client->frame->window());
 632 #endif
 633 }
 634
 635
 636 void Screen::unmanageWindow(Client *client)
 637 {
 638   Frame *frame = client->frame;
 639
 640   // call the python CLOSEWINDOW binding
 641   EventData data(_number, client, EventAction::CloseWindow, 0);
 642   openbox->bindings()->fireEvent(&data);
 643
 644   openbox->bindings()->grabButtons(false, client);
 645
 646   // remove from the wm's map
 647   openbox->removeClient(client->window());
 648   Window *w = frame->allWindows();
 649   for (unsigned int i = 0; w[i]; ++i)
 650     openbox->addClient(w[i], client);
 651   delete [] w;
 652   // unregister for handling events
 653   openbox->clearHandler(client->window());
 654
 655   // remove the window from our save set
 656   XChangeSaveSet(**otk::display, client->window(), SetModeDelete);
 657
 658   // we dont want events no more
 659   XSelectInput(**otk::display, client->window(), NoEventMask);
 660
 661   frame->hide();
 662
 663   // give the client its border back
 664   client->toggleClientBorder(true);
 665
 666   // reparent the window out of the frame
 667   frame->releaseClient();
 668
 669 #ifdef DEBUG
 670   Window framewin = client->frame->window();
 671 #endif
 672   delete client->frame;
 673   client->frame = 0;
 674
 675   // remove from the stacking order
 676   _stacking.remove(client);
 677
 678   // remove from the screen's list
 679   clients.remove(client);
 680
 681   // once the client is out of the list, update our strut to remove it's
 682   // influence
 683   updateStruts();
 684
 685   // unset modal before dropping our focus
 686   client->_modal = false;
 687
 688   // unfocus the client (calls the focus callbacks)
 689   client->unfocus();
 690
 691 #ifdef DEBUG
 692   printf("Unmanaged window 0x%lx frame 0x%lx\n", client->window(), framewin);
 693 #endif
 694
 695   delete client;
 696
 697   // update the root properties
 698   changeClientList();
 699 }
 700
 701 void Screen::lowerWindow(Client *client)
 702 {
 703   Window wins[2];  // only ever restack 2 windows.
 704
 705   assert(!_stacking.empty()); // this would be bad
 706
 707   ClientList::iterator it = --_stacking.end();
 708   const ClientList::iterator end = _stacking.begin();
 709
 710   if (client->modal() && client->transientFor()) {
 711     // don't let a modal window lower below its transient_for
 712     it = std::find(_stacking.begin(), _stacking.end(), client->transientFor());
 713     assert(it != _stacking.end());
 714
 715     wins[0] = (it == _stacking.begin() ? _focuswindow :
 716                ((*(--ClientList::const_iterator(it)))->frame->window()));
 717     wins[1] = client->frame->window();
 718     if (wins[0] == wins[1]) return; // already right above the window
 719
 720     _stacking.remove(client);
 721     _stacking.insert(it, client);
 722   } else {
 723     for (; it != end && (*it)->layer() < client->layer(); --it);
 724     if (*it == client) return;          // already the bottom, return
 725
 726     wins[0] = (*it)->frame->window();
 727     wins[1] = client->frame->window();
 728
 729     _stacking.remove(client);
 730     _stacking.insert(++it, client);
 731   }
 732
 733   XRestackWindows(**otk::display, wins, 2);
 734   changeStackingList();
 735 }
 736
 737 void Screen::raiseWindow(Client *client)
 738 {
 739   Window wins[2];  // only ever restack 2 windows.
 740
 741   assert(!_stacking.empty()); // this would be bad
 742
 743   Client *m = client->findModalChild();
 744   // if we have a modal child, raise it instead, we'll go along tho later
 745   if (m) raiseWindow(m);
 746
 747   // remove the client before looking so we can't run into ourselves
 748   _stacking.remove(client);
 749
 750   ClientList::iterator it = _stacking.begin();
 751   const ClientList::iterator end = _stacking.end();
 752
 753   // the stacking list is from highest to lowest
 754   for (; it != end && ((*it)->layer() > client->layer() || m == *it); ++it);
 755
 756   /*
 757     if our new position is the top, we want to stack under the _focuswindow
 758     otherwise, we want to stack under the previous window in the stack.
 759   */
 760   wins[0] = (it == _stacking.begin() ? _focuswindow :
 761              ((*(--ClientList::const_iterator(it)))->frame->window()));
 762   wins[1] = client->frame->window();
 763
 764   _stacking.insert(it, client);
 765
 766   XRestackWindows(**otk::display, wins, 2);
 767
 768   changeStackingList();
 769 }
 770
 771 void Screen::changeDesktop(unsigned int desktop)
 772 {
 773   if (desktop >= _num_desktops) return;
 774
 775   printf("Moving to desktop %u\n", desktop);
 776
 777   unsigned int old = _desktop;
 778
 779   _desktop = desktop;
 780   otk::Property::set(_info->rootWindow(),
 781                      otk::Property::atoms.net_current_desktop,
 782                      otk::Property::atoms.cardinal, _desktop);
 783
 784   if (old == _desktop) return;
 785
 786   ClientList::iterator it, end = clients.end();
 787   for (it = clients.begin(); it != end; ++it)
 788     (*it)->showhide();
 789
 790   // force the callbacks to fire
 791   if (!openbox->focusedClient())
 792     openbox->setFocusedClient(0);
 793 }
 794
 795 void Screen::changeNumDesktops(unsigned int num)
 796 {
 797   assert(num > 0);
 798
 799   if (!(num > 0)) return;
 800
 801   // move windows on desktops that will no longer exist!
 802   ClientList::iterator it, end = clients.end();
 803   for (it = clients.begin(); it != end; ++it) {
 804     unsigned int d = (*it)->desktop();
 805     if (d >= num && d != 0xffffffff) {
 806       XEvent ce;
 807       ce.xclient.type = ClientMessage;
 808       ce.xclient.message_type = otk::Property::atoms.net_wm_desktop;
 809       ce.xclient.display = **otk::display;
 810       ce.xclient.window = (*it)->window();
 811       ce.xclient.format = 32;
 812       ce.xclient.data.l[0] = num - 1;
 813       XSendEvent(**otk::display, _info->rootWindow(), False,
 814                  SubstructureNotifyMask | SubstructureRedirectMask, &ce);
 815     }
 816   }
 817
 818   _num_desktops = num;
 819   otk::Property::set(_info->rootWindow(),
 820                      otk::Property::atoms.net_number_of_desktops,
 821                      otk::Property::atoms.cardinal, _num_desktops);
 822
 823   // set the viewport hint
 824   unsigned long *viewport = new unsigned long[_num_desktops * 2];
 825   memset(viewport, 0, sizeof(unsigned long) * _num_desktops * 2);
 826   otk::Property::set(_info->rootWindow(),
 827                      otk::Property::atoms.net_desktop_viewport,
 828                      otk::Property::atoms.cardinal,
 829                      viewport, _num_desktops * 2);
 830   delete [] viewport;
 831
 832   // change our struts/area to match
 833   _area.resize(_num_desktops + 1);
 834   _struts.resize(_num_desktops + 1);
 835   updateStruts();
 836
 837   // the number of rows/columns will differ
 838   updateDesktopLayout();
 839
 840   // change our desktop if we're on one that no longer exists!
 841   if (_desktop >= _num_desktops)
 842     changeDesktop(_num_desktops - 1);
 843 }
 844
 845
 846 void Screen::updateDesktopNames()
 847 {
 848   unsigned long num = (unsigned) -1;
 849
 850   if (!otk::Property::get(_info->rootWindow(),
 851                           otk::Property::atoms.net_desktop_names,
 852                           otk::Property::utf8, &num, &_desktop_names))
 853     _desktop_names.clear();
 854   while (_desktop_names.size() < _num_desktops)
 855     _desktop_names.push_back("Unnamed");
 856 }
 857
 858
 859 void Screen::setDesktopName(unsigned int i, const otk::ustring &name)
 860 {
 861   if (i >= _num_desktops) return;
 862
 863   otk::Property::StringVect newnames = _desktop_names;
 864   newnames[i] = name;
 865   otk::Property::set(_info->rootWindow(),
 866                      otk::Property::atoms.net_desktop_names,
 867                      otk::Property::utf8, newnames);
 868 }
 869
 870 otk::ustring Screen::desktopName(unsigned int i) const
 871 {
 872   if (i >= _num_desktops) return "";
 873   return _desktop_names[i];
 874 }
 875
 876 const otk::Rect& Screen::area(unsigned int desktop) const {
 877   assert(desktop < _num_desktops || desktop == 0xffffffff);
 878   if (desktop < _num_desktops)
 879     return _area[desktop];
 880   else
 881     return _area[_num_desktops];
 882 }
 883
 884 void Screen::installColormap(bool install) const
 885 {
 886   if (install)
 887     XInstallColormap(**otk::display, _info->colormap());
 888   else
 889     XUninstallColormap(**otk::display, _info->colormap());
 890 }
 891
 892 void Screen::showDesktop(bool show)
 893 {
 894   if (show == _showing_desktop) return; // no change
 895
 896   // save the window focus, and restore it when leaving the show-desktop mode
 897   static Window saved_focus = 0;
 898   if (show) {
 899     Client *c = openbox->focusedClient();
 900     if (c) saved_focus = c->window();
 901   }
 902
 903   _showing_desktop = show;
 904
 905   ClientList::iterator it, end = clients.end();
 906   for (it = clients.begin(); it != end; ++it) {
 907     if ((*it)->type() == Client::Type_Desktop) {
 908       if (show)
 909         (*it)->focus();
 910     } else
 911       (*it)->showhide();
 912   }
 913
 914   if (!show) {
 915     Client *f = openbox->focusedClient();
 916     if (!f || f->type() == Client::Type_Desktop) {
 917       Client *c = openbox->findClient(saved_focus);
 918       if (c) c->focus();
 919     }
 920   }
 921
 922   otk::Property::set(_info->rootWindow(),
 923                      otk::Property::atoms.net_showing_desktop,
 924                      otk::Property::atoms.cardinal,
 925                      show ? 1 : 0);
 926 }
 927
 928 void Screen::propertyHandler(const XPropertyEvent &e)
 929 {
 930   otk::EventHandler::propertyHandler(e);
 931
 932   // compress changes to a single property into a single change
 933   XEvent ce;
 934   while (XCheckTypedWindowEvent(**otk::display, _info->rootWindow(),
 935                                 e.type, &ce)) {
 936     // XXX: it would be nice to compress ALL changes to a property, not just
 937     //      changes in a row without other props between.
 938     if (ce.xproperty.atom != e.atom) {
 939       XPutBackEvent(**otk::display, &ce);
 940       break;
 941     }
 942   }
 943
 944   if (e.atom == otk::Property::atoms.net_desktop_names)
 945     updateDesktopNames();
 946   else if (e.atom == otk::Property::atoms.net_desktop_layout)
 947     updateDesktopLayout();
 948 }
 949
 950
 951 void Screen::clientMessageHandler(const XClientMessageEvent &e)
 952 {
 953   otk::EventHandler::clientMessageHandler(e);
 954
 955   if (e.format != 32) return;
 956
 957   if (e.message_type == otk::Property::atoms.net_current_desktop) {
 958     changeDesktop(e.data.l[0]);
 959   } else if (e.message_type == otk::Property::atoms.net_number_of_desktops) {
 960     changeNumDesktops(e.data.l[0]);
 961   } else if (e.message_type == otk::Property::atoms.net_showing_desktop) {
 962     showDesktop(e.data.l[0] != 0);
 963   }
 964 }
 965
 966
 967 void Screen::mapRequestHandler(const XMapRequestEvent &e)
 968 {
 969   otk::EventHandler::mapRequestHandler(e);
 970
 971 #ifdef    DEBUG
 972   printf("MapRequest for 0x%lx\n", e.window);
 973 #endif // DEBUG
 974
 975   Client *c = openbox->findClient(e.window);
 976   if (c) {
 977 #ifdef DEBUG
 978     printf("DEBUG: MAP REQUEST CAUGHT IN SCREEN. IGNORED.\n");
 979 #endif
 980   } else {
 981     if (_showing_desktop)
 982       showDesktop(false); // leave showing-the-desktop mode
 983     manageWindow(e.window);
 984   }
 985 }
 986
 987 }