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

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #ifdef HAVE_CONFIG_H
   4 # include "../config.h"
   5 #endif
   6
   7 extern "C" {
   8 #ifdef    HAVE_STDIO_H
   9 #  include <stdio.h>
  10 #endif // HAVE_STDIO_H
  11
  12 #ifdef    HAVE_STRING_H
  13 #  include <string.h>
  14 #endif // HAVE_STRING_H
  15
  16 #ifdef    HAVE_UNISTD_H
  17 #  include <sys/types.h>
  18 #  include <unistd.h>
  19 #endif // HAVE_UNISTD_H
  20
  21 #include "gettext.h"
  22 #define _(str) gettext(str)
  23 }
  24
  25 #include "screen.hh"
  26 #include "client.hh"
  27 #include "openbox.hh"
  28 #include "frame.hh"
  29 #include "bindings.hh"
  30 #include "python.hh"
  31 #include "otk/display.hh"
  32
  33 #include <vector>
  34 #include <algorithm>
  35
  36 static bool running;
  37 static int anotherWMRunning(Display *display, XErrorEvent *) {
  38   printf(_("Another window manager already running on display %s.\n"),
  39          DisplayString(display));
  40   running = true;
  41   return -1;
  42 }
  43
  44
  45 namespace ob {
  46
  47
  48 OBScreen::OBScreen(int screen)
  49   : OBWidget(OBWidget::Type_Root),
  50     _number(screen)
  51 {
  52   assert(screen >= 0); assert(screen < ScreenCount(otk::OBDisplay::display));
  53   _info = otk::OBDisplay::screenInfo(screen);
  54
  55   ::running = false;
  56   XErrorHandler old = XSetErrorHandler(::anotherWMRunning);
  57   XSelectInput(otk::OBDisplay::display, _info->rootWindow(),
  58                OBScreen::event_mask);
  59   XSync(otk::OBDisplay::display, false);
  60   XSetErrorHandler(old);
  61
  62   _managed = !::running;
  63   if (! _managed) return; // was unable to manage the screen
  64
  65   printf(_("Managing screen %d: visual 0x%lx, depth %d\n"),
  66          _number, XVisualIDFromVisual(_info->visual()), _info->depth());
  67
  68   Openbox::instance->property()->set(_info->rootWindow(),
  69                                      otk::OBProperty::openbox_pid,
  70                                      otk::OBProperty::Atom_Cardinal,
  71                                      (unsigned long) getpid());
  72
  73   // set the mouse cursor for the root window (the default cursor)
  74   XDefineCursor(otk::OBDisplay::display, _info->rootWindow(),
  75                 Openbox::instance->cursors().session);
  76
  77   // initialize the shit that is used for all drawing on the screen
  78   _image_control = new otk::BImageControl(Openbox::instance->timerManager(),
  79                                           _info, true);
  80   _image_control->installRootColormap();
  81   _root_cmap_installed = True;
  82
  83   // initialize the screen's style
  84   _style.setImageControl(_image_control);
  85   std::string stylepath;
  86   python_get_string("theme", &stylepath);
  87   otk::Configuration sconfig(false);
  88   sconfig.setFile(otk::expandTilde(stylepath));
  89   if (!sconfig.load()) {
  90     sconfig.setFile(otk::expandTilde(DEFAULTSTYLE));
  91     if (!sconfig.load()) {
  92       printf(_("Unable to load default style: %s. Aborting.\n"), DEFAULTSTYLE);
  93       ::exit(1);
  94     }
  95   }
  96   _style.load(sconfig);
  97
  98   // set up notification of netwm support
  99   changeSupportedAtoms();
 100
 101   // Set the netwm properties for geometry
 102   unsigned long geometry[] = { _info->width(),
 103                                _info->height() };
 104   Openbox::instance->property()->set(_info->rootWindow(),
 105                                      otk::OBProperty::net_desktop_geometry,
 106                                      otk::OBProperty::Atom_Cardinal,
 107                                      geometry, 2);
 108
 109   // Set the net_desktop_names property
 110   std::vector<std::string> names;
 111   python_get_stringlist("desktop_names", &names);
 112   Openbox::instance->property()->set(_info->rootWindow(),
 113                                      otk::OBProperty::net_desktop_names,
 114                                      otk::OBProperty::utf8,
 115                                      names);
 116   // the above set() will cause the updateDesktopNames to fire right away so
 117   // we have a list of desktop names
 118
 119   if (!python_get_long("number_of_desktops", &_num_desktops))
 120     _num_desktops = 4;
 121   changeNumDesktops(_num_desktops); // set the hint
 122
 123   _desktop = 0;
 124   changeDesktop(0); // set the hint
 125
 126   // create the window which gets focus when no clients get it
 127   XSetWindowAttributes attr;
 128   attr.override_redirect = true;
 129   _focuswindow = XCreateWindow(otk::OBDisplay::display, _info->rootWindow(),
 130                                -100, -100, 1, 1, 0, 0, InputOnly,
 131                                _info->visual(), CWOverrideRedirect, &attr);
 132   XMapWindow(otk::OBDisplay::display, _focuswindow);
 133
 134   // these may be further updated if any pre-existing windows are found in
 135   // the manageExising() function
 136   changeClientList();  // initialize the client lists, which will be empty
 137   calcArea();          // initialize the available working area
 138
 139   // register this class as the event handler for the root window
 140   Openbox::instance->registerHandler(_info->rootWindow(), this);
 141 }
 142
 143
 144 OBScreen::~OBScreen()
 145 {
 146   if (! _managed) return;
 147
 148   XSelectInput(otk::OBDisplay::display, _info->rootWindow(), NoEventMask);
 149
 150   // unmanage all windows
 151   while (!clients.empty())
 152     unmanageWindow(clients.front());
 153
 154   XDestroyWindow(otk::OBDisplay::display, _focuswindow);
 155   XDestroyWindow(otk::OBDisplay::display, _supportwindow);
 156
 157   delete _image_control;
 158 }
 159
 160
 161 void OBScreen::manageExisting()
 162 {
 163   unsigned int i, j, nchild;
 164   Window r, p, *children;
 165   XQueryTree(otk::OBDisplay::display, _info->rootWindow(), &r, &p,
 166              &children, &nchild);
 167
 168   // preen the window list of all icon windows... for better dockapp support
 169   for (i = 0; i < nchild; i++) {
 170     if (children[i] == None) continue;
 171
 172     XWMHints *wmhints = XGetWMHints(otk::OBDisplay::display,
 173                                     children[i]);
 174
 175     if (wmhints) {
 176       if ((wmhints->flags & IconWindowHint) &&
 177           (wmhints->icon_window != children[i])) {
 178         for (j = 0; j < nchild; j++) {
 179           if (children[j] == wmhints->icon_window) {
 180             children[j] = None;
 181             break;
 182           }
 183         }
 184       }
 185
 186       XFree(wmhints);
 187     }
 188   }
 189
 190   // manage shown windows
 191   for (i = 0; i < nchild; ++i) {
 192     if (children[i] == None)
 193       continue;
 194
 195     XWindowAttributes attrib;
 196     if (XGetWindowAttributes(otk::OBDisplay::display, children[i], &attrib)) {
 197       if (attrib.override_redirect) continue;
 198
 199       if (attrib.map_state != IsUnmapped) {
 200         manageWindow(children[i]);
 201       }
 202     }
 203   }
 204
 205   XFree(children);
 206 }
 207
 208
 209 void OBScreen::updateStrut()
 210 {
 211   _strut.left = _strut.right = _strut.top = _strut.bottom = 0;
 212
 213   OBClient::List::iterator it, end = clients.end();
 214   for (it = clients.begin(); it != end; ++it) {
 215     const otk::Strut &s = (*it)->strut();
 216     _strut.left = std::max(_strut.left, s.left);
 217     _strut.right = std::max(_strut.right, s.right);
 218     _strut.top = std::max(_strut.top, s.top);
 219     _strut.bottom = std::max(_strut.bottom, s.bottom);
 220   }
 221   calcArea();
 222 }
 223
 224
 225 void OBScreen::calcArea()
 226 {
 227   otk::Rect old_area = _area;
 228
 229 /*
 230 #ifdef    XINERAMA
 231   // reset to the full areas
 232   if (isXineramaActive())
 233     xineramaUsableArea = getXineramaAreas();
 234 #endif // XINERAMA
 235 */
 236
 237   _area.setRect(_strut.left, _strut.top,
 238                 _info->width() - (_strut.left + _strut.right),
 239                 _info->height() - (_strut.top + _strut.bottom));
 240
 241 /*
 242 #ifdef    XINERAMA
 243   if (isXineramaActive()) {
 244     // keep each of the ximerama-defined areas inside the strut
 245     RectList::iterator xit, xend = xineramaUsableArea.end();
 246     for (xit = xineramaUsableArea.begin(); xit != xend; ++xit) {
 247       if (xit->x() < usableArea.x()) {
 248         xit->setX(usableArea.x());
 249         xit->setWidth(xit->width() - usableArea.x());
 250       }
 251       if (xit->y() < usableArea.y()) {
 252         xit->setY(usableArea.y());
 253         xit->setHeight(xit->height() - usableArea.y());
 254       }
 255       if (xit->x() + xit->width() > usableArea.width())
 256         xit->setWidth(usableArea.width() - xit->x());
 257       if (xit->y() + xit->height() > usableArea.height())
 258         xit->setHeight(usableArea.height() - xit->y());
 259     }
 260   }
 261 #endif // XINERAMA
 262 */
 263
 264   if (old_area != _area)
 265     // XXX: re-maximize windows
 266
 267   changeWorkArea();
 268 }
 269
 270
 271 void OBScreen::changeSupportedAtoms()
 272 {
 273   // create the netwm support window
 274   _supportwindow = XCreateSimpleWindow(otk::OBDisplay::display,
 275                                        _info->rootWindow(),
 276                                        0, 0, 1, 1, 0, 0, 0);
 277   assert(_supportwindow != None);
 278
 279   // set supporting window
 280   Openbox::instance->property()->set(_info->rootWindow(),
 281                                      otk::OBProperty::net_supporting_wm_check,
 282                                      otk::OBProperty::Atom_Window,
 283                                      _supportwindow);
 284
 285   //set properties on the supporting window
 286   Openbox::instance->property()->set(_supportwindow,
 287                                      otk::OBProperty::net_wm_name,
 288                                      otk::OBProperty::utf8,
 289                                      "Openbox");
 290   Openbox::instance->property()->set(_supportwindow,
 291                                      otk::OBProperty::net_supporting_wm_check,
 292                                      otk::OBProperty::Atom_Window,
 293                                      _supportwindow);
 294
 295
 296   Atom supported[] = {
 297       otk::OBProperty::net_current_desktop,
 298       otk::OBProperty::net_number_of_desktops,
 299       otk::OBProperty::net_desktop_geometry,
 300       otk::OBProperty::net_desktop_viewport,
 301       otk::OBProperty::net_active_window,
 302       otk::OBProperty::net_workarea,
 303       otk::OBProperty::net_client_list,
 304       otk::OBProperty::net_client_list_stacking,
 305       otk::OBProperty::net_desktop_names,
 306       otk::OBProperty::net_close_window,
 307       otk::OBProperty::net_wm_name,
 308       otk::OBProperty::net_wm_visible_name,
 309       otk::OBProperty::net_wm_icon_name,
 310       otk::OBProperty::net_wm_visible_icon_name,
 311 /*
 312       otk::OBProperty::net_wm_desktop,
 313 */
 314       otk::OBProperty::net_wm_strut,
 315       otk::OBProperty::net_wm_window_type,
 316       otk::OBProperty::net_wm_window_type_desktop,
 317       otk::OBProperty::net_wm_window_type_dock,
 318       otk::OBProperty::net_wm_window_type_toolbar,
 319       otk::OBProperty::net_wm_window_type_menu,
 320       otk::OBProperty::net_wm_window_type_utility,
 321       otk::OBProperty::net_wm_window_type_splash,
 322       otk::OBProperty::net_wm_window_type_dialog,
 323       otk::OBProperty::net_wm_window_type_normal,
 324 /*
 325       otk::OBProperty::net_wm_moveresize,
 326       otk::OBProperty::net_wm_moveresize_size_topleft,
 327       otk::OBProperty::net_wm_moveresize_size_topright,
 328       otk::OBProperty::net_wm_moveresize_size_bottomleft,
 329       otk::OBProperty::net_wm_moveresize_size_bottomright,
 330       otk::OBProperty::net_wm_moveresize_move,
 331 */
 332 /*
 333       otk::OBProperty::net_wm_allowed_actions,
 334       otk::OBProperty::net_wm_action_move,
 335       otk::OBProperty::net_wm_action_resize,
 336       otk::OBProperty::net_wm_action_shade,
 337       otk::OBProperty::net_wm_action_maximize_horz,
 338       otk::OBProperty::net_wm_action_maximize_vert,
 339       otk::OBProperty::net_wm_action_change_desktop,
 340       otk::OBProperty::net_wm_action_close,
 341 */
 342       otk::OBProperty::net_wm_state,
 343       otk::OBProperty::net_wm_state_modal,
 344       otk::OBProperty::net_wm_state_maximized_vert,
 345       otk::OBProperty::net_wm_state_maximized_horz,
 346       otk::OBProperty::net_wm_state_shaded,
 347       otk::OBProperty::net_wm_state_skip_taskbar,
 348       otk::OBProperty::net_wm_state_skip_pager,
 349       otk::OBProperty::net_wm_state_hidden,
 350       otk::OBProperty::net_wm_state_fullscreen,
 351       otk::OBProperty::net_wm_state_above,
 352       otk::OBProperty::net_wm_state_below,
 353     };
 354   const int num_supported = sizeof(supported)/sizeof(Atom);
 355
 356   // convert to the atom values
 357   for (int i = 0; i < num_supported; ++i)
 358     supported[i] =
 359       Openbox::instance->property()->atom((otk::OBProperty::Atoms)supported[i]);
 360
 361   Openbox::instance->property()->set(_info->rootWindow(),
 362                                      otk::OBProperty::net_supported,
 363                                      otk::OBProperty::Atom_Atom,
 364                                      supported, num_supported);
 365 }
 366
 367
 368 void OBScreen::changeClientList()
 369 {
 370   Window *windows;
 371   unsigned int size = clients.size();
 372
 373   // create an array of the window ids
 374   if (size > 0) {
 375     Window *win_it;
 376
 377     windows = new Window[size];
 378     win_it = windows;
 379     OBClient::List::const_iterator it = clients.begin();
 380     const OBClient::List::const_iterator end = clients.end();
 381     for (; it != end; ++it, ++win_it)
 382       *win_it = (*it)->window();
 383   } else
 384     windows = (Window*) 0;
 385
 386   Openbox::instance->property()->set(_info->rootWindow(),
 387                                      otk::OBProperty::net_client_list,
 388                                      otk::OBProperty::Atom_Window,
 389                                      windows, size);
 390
 391   if (size)
 392     delete [] windows;
 393
 394   changeStackingList();
 395 }
 396
 397
 398 void OBScreen::changeStackingList()
 399 {
 400   Window *windows;
 401   unsigned int size = _stacking.size();
 402
 403   assert(size == clients.size()); // just making sure.. :)
 404
 405
 406   // create an array of the window ids
 407   if (size > 0) {
 408     Window *win_it;
 409
 410     windows = new Window[size];
 411     win_it = windows;
 412     OBClient::List::const_iterator it = _stacking.begin();
 413     const OBClient::List::const_iterator end = _stacking.end();
 414     for (; it != end; ++it, ++win_it)
 415       *win_it = (*it)->window();
 416   } else
 417     windows = (Window*) 0;
 418
 419   Openbox::instance->property()->set(_info->rootWindow(),
 420                                      otk::OBProperty::net_client_list_stacking,
 421                                      otk::OBProperty::Atom_Window,
 422                                      windows, size);
 423
 424   if (size)
 425     delete [] windows;
 426 }
 427
 428
 429 void OBScreen::changeWorkArea() {
 430   unsigned long *dims = new unsigned long[4 * _num_desktops];
 431   for (long i = 0; i < _num_desktops; ++i) {
 432     // XXX: this could be different for each workspace
 433     dims[(i * 4) + 0] = _area.x();
 434     dims[(i * 4) + 1] = _area.y();
 435     dims[(i * 4) + 2] = _area.width();
 436     dims[(i * 4) + 3] = _area.height();
 437   }
 438   Openbox::instance->property()->set(_info->rootWindow(),
 439                                      otk::OBProperty::net_workarea,
 440                                      otk::OBProperty::Atom_Cardinal,
 441                                      dims, 4 * _num_desktops);
 442   delete [] dims;
 443 }
 444
 445
 446 void OBScreen::manageWindow(Window window)
 447 {
 448   OBClient *client = 0;
 449   XWMHints *wmhint;
 450   XSetWindowAttributes attrib_set;
 451
 452   // is the window a docking app
 453   if ((wmhint = XGetWMHints(otk::OBDisplay::display, window))) {
 454     if ((wmhint->flags & StateHint) &&
 455         wmhint->initial_state == WithdrawnState) {
 456       //slit->addClient(w); // XXX: make dock apps work!
 457       XFree(wmhint);
 458       return;
 459     }
 460     XFree(wmhint);
 461   }
 462
 463   otk::OBDisplay::grab();
 464
 465   // choose the events we want to receive on the CLIENT window
 466   attrib_set.event_mask = OBClient::event_mask;
 467   attrib_set.do_not_propagate_mask = OBClient::no_propagate_mask;
 468   XChangeWindowAttributes(otk::OBDisplay::display, window,
 469                           CWEventMask|CWDontPropagate, &attrib_set);
 470
 471   // create the OBClient class, which gets all of the hints on the window
 472   client = new OBClient(_number, window);
 473   // register for events
 474   Openbox::instance->registerHandler(window, client);
 475   // add to the wm's map
 476   Openbox::instance->addClient(window, client);
 477
 478   // we dont want a border on the client
 479   client->toggleClientBorder(false);
 480
 481   // specify that if we exit, the window should not be destroyed and should be
 482   // reparented back to root automatically
 483   XChangeSaveSet(otk::OBDisplay::display, window, SetModeInsert);
 484
 485   if (!client->positionRequested()) {
 486     // XXX: position the window intelligenty
 487   }
 488
 489   // create the decoration frame for the client window
 490   client->frame = new OBFrame(client, &_style);
 491
 492   // add to the wm's map
 493   Openbox::instance->addClient(client->frame->window(), client);
 494   Openbox::instance->addClient(client->frame->plate(), client);
 495   Openbox::instance->addClient(client->frame->titlebar(), client);
 496   Openbox::instance->addClient(client->frame->label(), client);
 497   Openbox::instance->addClient(client->frame->button_max(), client);
 498   Openbox::instance->addClient(client->frame->button_iconify(), client);
 499   Openbox::instance->addClient(client->frame->button_stick(), client);
 500   Openbox::instance->addClient(client->frame->button_close(), client);
 501   Openbox::instance->addClient(client->frame->handle(), client);
 502   Openbox::instance->addClient(client->frame->grip_left(), client);
 503   Openbox::instance->addClient(client->frame->grip_right(), client);
 504
 505   bool shown = false;
 506
 507   // if on the current desktop.. (or all desktops)
 508   if (client->desktop() == _desktop ||
 509       client->desktop() == (signed)0xffffffff) {
 510     shown = true;
 511     client->frame->show();
 512   }
 513
 514   // XXX: handle any requested states such as maximized
 515
 516   otk::OBDisplay::ungrab();
 517
 518   // add to the screen's list
 519   clients.push_back(client);
 520   // this puts into the stacking order, then raises it
 521   _stacking.push_back(client);
 522   restack(true, client);
 523   // update the root properties
 524   changeClientList();
 525
 526   Openbox::instance->bindings()->grabButtons(true, client);
 527
 528   if (shown) {
 529     // XXX: make this optional or more intelligent
 530     if (client->normal())
 531       client->focus();
 532   }
 533
 534   // call the python NEWWINDOW binding
 535   EventData *data = new_event_data(_number, window, EventNewWindow, 0);
 536   Openbox::instance->bindings()->fireEvent(data);
 537   Py_DECREF((PyObject*)data);
 538
 539   printf("Managed window 0x%lx\n", window);
 540 }
 541
 542
 543 void OBScreen::unmanageWindow(OBClient *client)
 544 {
 545   OBFrame *frame = client->frame;
 546
 547   // call the python CLOSEWINDOW binding
 548   EventData *data = new_event_data(_number, client->window(),
 549                                    EventCloseWindow, 0);
 550   Openbox::instance->bindings()->fireEvent(data);
 551   Py_DECREF((PyObject*)data);
 552
 553   Openbox::instance->bindings()->grabButtons(false, client);
 554
 555   // remove from the stacking order
 556   _stacking.remove(client);
 557
 558   // pass around focus if this window was focused XXX do this better!
 559   if (Openbox::instance->focusedClient() == client) {
 560     OBClient *newfocus = 0;
 561     OBClient::List::iterator it, end = _stacking.end();
 562     for (it = _stacking.begin(); it != end; ++it)
 563       if ((*it)->desktop() == _desktop && (*it)->normal() && (*it)->focus()) {
 564         newfocus = *it;
 565         break;
 566       }
 567     if (!newfocus)
 568       client->unfocus();
 569   }
 570
 571   // remove from the wm's map
 572   Openbox::instance->removeClient(client->window());
 573   Openbox::instance->removeClient(frame->window());
 574   Openbox::instance->removeClient(frame->plate());
 575   Openbox::instance->removeClient(frame->titlebar());
 576   Openbox::instance->removeClient(frame->label());
 577   Openbox::instance->removeClient(frame->button_max());
 578   Openbox::instance->removeClient(frame->button_iconify());
 579   Openbox::instance->removeClient(frame->button_stick());
 580   Openbox::instance->removeClient(frame->button_close());
 581   Openbox::instance->removeClient(frame->handle());
 582   Openbox::instance->removeClient(frame->grip_left());
 583   Openbox::instance->removeClient(frame->grip_right());
 584   // unregister for handling events
 585   Openbox::instance->clearHandler(client->window());
 586
 587   // remove the window from our save set
 588   XChangeSaveSet(otk::OBDisplay::display, client->window(), SetModeDelete);
 589
 590   // we dont want events no more
 591   XSelectInput(otk::OBDisplay::display, client->window(), NoEventMask);
 592
 593   frame->hide();
 594
 595   // give the client its border back
 596   client->toggleClientBorder(true);
 597
 598   delete client->frame;
 599   client->frame = 0;
 600
 601   // remove from the screen's list
 602   clients.remove(client);
 603   delete client;
 604
 605   // update the root properties
 606   changeClientList();
 607 }
 608
 609 void OBScreen::restack(bool raise, OBClient *client)
 610 {
 611   const int layer = client->layer();
 612   std::vector<Window> wins;
 613
 614   _stacking.remove(client);
 615
 616   // the stacking list is from highest to lowest
 617
 618   OBClient::List::iterator it = _stacking.begin(), end = _stacking.end();
 619   // insert the windows above this window
 620   for (; it != end; ++it) {
 621     if ((*it)->layer() < layer || (raise && (*it)->layer() == layer))
 622       break;
 623     wins.push_back((*it)->frame->window());
 624   }
 625   // insert our client
 626   wins.push_back(client->frame->window());
 627   _stacking.insert(it, client);
 628   // insert the remaining below this window
 629   for (; it != end; ++it)
 630     wins.push_back((*it)->frame->window());
 631
 632   XRestackWindows(otk::OBDisplay::display, &wins[0], wins.size());
 633   changeStackingList();
 634 }
 635
 636 void OBScreen::changeDesktop(long desktop)
 637 {
 638   assert(desktop >= 0 && desktop < _num_desktops);
 639
 640   if (!(desktop >= 0 && desktop < _num_desktops)) return;
 641
 642   printf("Moving to desktop %ld\n", desktop);
 643
 644   long old = _desktop;
 645
 646   _desktop = desktop;
 647   Openbox::instance->property()->set(_info->rootWindow(),
 648                                      otk::OBProperty::net_current_desktop,
 649                                      otk::OBProperty::Atom_Cardinal,
 650                                      _desktop);
 651
 652   if (old == _desktop) return;
 653
 654   OBClient::List::iterator it, end = clients.end();
 655   for (it = clients.begin(); it != end; ++it) {
 656     if ((*it)->desktop() == old) {
 657       (*it)->frame->hide();
 658     } else if ((*it)->desktop() == _desktop) {
 659       (*it)->frame->show();
 660     }
 661   }
 662 }
 663
 664 void OBScreen::changeNumDesktops(long num)
 665 {
 666   assert(num > 0);
 667
 668   if (!(num > 0)) return;
 669
 670   // XXX: move windows on desktops that will no longer exist!
 671
 672   _num_desktops = num;
 673   Openbox::instance->property()->set(_info->rootWindow(),
 674                                      otk::OBProperty::net_number_of_desktops,
 675                                      otk::OBProperty::Atom_Cardinal,
 676                                      _num_desktops);
 677
 678   // set the viewport hint
 679   unsigned long *viewport = new unsigned long[_num_desktops * 2];
 680   memset(viewport, 0, sizeof(unsigned long) * _num_desktops * 2);
 681   Openbox::instance->property()->set(_info->rootWindow(),
 682                                      otk::OBProperty::net_desktop_viewport,
 683                                      otk::OBProperty::Atom_Cardinal,
 684                                      viewport, _num_desktops * 2);
 685   delete [] viewport;
 686
 687   // update the work area hint
 688   changeWorkArea();
 689 }
 690
 691
 692 void OBScreen::updateDesktopNames()
 693 {
 694   const otk::OBProperty *property = Openbox::instance->property();
 695
 696   unsigned long num = (unsigned) -1;
 697
 698   if (!property->get(_info->rootWindow(),
 699                      otk::OBProperty::net_desktop_names,
 700                      otk::OBProperty::utf8, &num, &_desktop_names))
 701     _desktop_names.clear();
 702   while ((long)_desktop_names.size() < _num_desktops)
 703     _desktop_names.push_back("Unnamed");
 704 }
 705
 706
 707 void OBScreen::setDesktopName(long i, const std::string &name)
 708 {
 709   assert(i >= 0);
 710
 711   if (i >= _num_desktops) return;
 712
 713   const otk::OBProperty *property = Openbox::instance->property();
 714
 715   otk::OBProperty::StringVect newnames = _desktop_names;
 716   newnames[i] = name;
 717   property->set(_info->rootWindow(), otk::OBProperty::net_desktop_names,
 718                 otk::OBProperty::utf8, newnames);
 719 }
 720
 721
 722 void OBScreen::propertyHandler(const XPropertyEvent &e)
 723 {
 724   otk::OtkEventHandler::propertyHandler(e);
 725
 726   const otk::OBProperty *property = Openbox::instance->property();
 727
 728   // compress changes to a single property into a single change
 729   XEvent ce;
 730   while (XCheckTypedEvent(otk::OBDisplay::display, e.type, &ce)) {
 731     // XXX: it would be nice to compress ALL changes to a property, not just
 732     //      changes in a row without other props between.
 733     if (ce.xproperty.atom != e.atom) {
 734       XPutBackEvent(otk::OBDisplay::display, &ce);
 735       break;
 736     }
 737   }
 738
 739   if (e.atom == property->atom(otk::OBProperty::net_desktop_names))
 740     updateDesktopNames();
 741 }
 742
 743
 744 void OBScreen::clientMessageHandler(const XClientMessageEvent &e)
 745 {
 746   otk::OtkEventHandler::clientMessageHandler(e);
 747
 748   if (e.format != 32) return;
 749
 750   const otk::OBProperty *property = Openbox::instance->property();
 751
 752   if (e.message_type == property->atom(otk::OBProperty::net_current_desktop)) {
 753     changeDesktop(e.data.l[0]);
 754   } else if (e.message_type ==
 755              property->atom(otk::OBProperty::net_number_of_desktops)) {
 756     changeNumDesktops(e.data.l[0]);
 757   }
 758   // XXX: so many client messages to handle here! ..or not.. they go to clients
 759 }
 760
 761
 762 void OBScreen::mapRequestHandler(const XMapRequestEvent &e)
 763 {
 764   otk::OtkEventHandler::mapRequestHandler(e);
 765
 766 #ifdef    DEBUG
 767   printf("MapRequest for 0x%lx\n", e.window);
 768 #endif // DEBUG
 769
 770   /*
 771     MapRequest events come here even after the window exists instead of going
 772     right to the client window, because of how they are sent and their struct
 773     layout.
 774   */
 775   OBClient *c = Openbox::instance->findClient(e.window);
 776
 777   if (c) {
 778     if (c->shaded())
 779       c->shade(false);
 780     // XXX: uniconify the window
 781     c->focus();
 782   } else
 783     manageWindow(e.window);
 784 }
 785 }