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_UNISTD_H
  13 #  include <sys/types.h>
  14 #  include <unistd.h>
  15 #endif // HAVE_UNISTD_H
  16
  17 #include "gettext.h"
  18 #define _(str) gettext(str)
  19 }
  20
  21 #include "screen.hh"
  22 #include "client.hh"
  23 #include "openbox.hh"
  24 #include "frame.hh"
  25 #include "bindings.hh"
  26 #include "python.hh"
  27 #include "otk/display.hh"
  28
  29 #include <vector>
  30 #include <algorithm>
  31
  32 static bool running;
  33 static int anotherWMRunning(Display *display, XErrorEvent *) {
  34   printf(_("Another window manager already running on display %s.\n"),
  35          DisplayString(display));
  36   running = true;
  37   return -1;
  38 }
  39
  40
  41 namespace ob {
  42
  43
  44 OBScreen::OBScreen(int screen)
  45   : _number(screen),
  46     _root(screen)
  47 {
  48   assert(screen >= 0); assert(screen < ScreenCount(otk::OBDisplay::display));
  49   _info = otk::OBDisplay::screenInfo(screen);
  50
  51   ::running = false;
  52   XErrorHandler old = XSetErrorHandler(::anotherWMRunning);
  53   XSelectInput(otk::OBDisplay::display, _info->rootWindow(),
  54                OBScreen::event_mask);
  55   XSync(otk::OBDisplay::display, false);
  56   XSetErrorHandler(old);
  57
  58   _managed = !::running;
  59   if (! _managed) return; // was unable to manage the screen
  60
  61   printf(_("Managing screen %d: visual 0x%lx, depth %d\n"),
  62          _number, XVisualIDFromVisual(_info->visual()), _info->depth());
  63
  64   Openbox::instance->property()->set(_info->rootWindow(),
  65                                      otk::OBProperty::openbox_pid,
  66                                      otk::OBProperty::Atom_Cardinal,
  67                                      (unsigned long) getpid());
  68
  69   // set the mouse cursor for the root window (the default cursor)
  70   XDefineCursor(otk::OBDisplay::display, _info->rootWindow(),
  71                 Openbox::instance->cursors().session);
  72
  73   // initialize the shit that is used for all drawing on the screen
  74   _image_control = new otk::BImageControl(Openbox::instance->timerManager(),
  75                                           _info, true);
  76   _image_control->installRootColormap();
  77   _root_cmap_installed = True;
  78
  79   // initialize the screen's style
  80   _style.setImageControl(_image_control);
  81   std::string stylepath;
  82   python_get_string("theme", &stylepath);
  83   otk::Configuration sconfig(false);
  84   sconfig.setFile(otk::expandTilde(stylepath));
  85   if (!sconfig.load()) {
  86     sconfig.setFile(otk::expandTilde(DEFAULTSTYLE));
  87     if (!sconfig.load()) {
  88       printf(_("Unable to load default style: %s. Aborting.\n"), DEFAULTSTYLE);
  89       ::exit(1);
  90     }
  91   }
  92   _style.load(sconfig);
  93
  94   // set up notification of netwm support
  95   setSupportedAtoms();
  96
  97   // Set the netwm properties for geometry and viewport
  98   unsigned long geometry[] = { _info->width(),
  99                                _info->height() };
 100   Openbox::instance->property()->set(_info->rootWindow(),
 101                                      otk::OBProperty::net_desktop_geometry,
 102                                      otk::OBProperty::Atom_Cardinal,
 103                                      geometry, 2);
 104   unsigned long viewport[] = { 0, 0 };
 105   Openbox::instance->property()->set(_info->rootWindow(),
 106                                      otk::OBProperty::net_desktop_viewport,
 107                                      otk::OBProperty::Atom_Cardinal,
 108                                      viewport, 2);
 109
 110   // Set the net_desktop_names property
 111   std::vector<std::string> names;
 112   python_get_stringlist("desktop_names", &names);
 113   _root.setDesktopNames(names);
 114
 115   // create the window which gets focus when no clients get it
 116   XSetWindowAttributes attr;
 117   attr.override_redirect = true;
 118   _focuswindow = XCreateWindow(otk::OBDisplay::display, _info->rootWindow(),
 119                                -100, -100, 1, 1, 0, 0, InputOnly,
 120                                _info->visual(), CWOverrideRedirect, &attr);
 121   XMapWindow(otk::OBDisplay::display, _focuswindow);
 122
 123   // these may be further updated if any pre-existing windows are found in
 124   // the manageExising() function
 125   setClientList();     // initialize the client lists, which will be empty
 126   calcArea();          // initialize the available working area
 127 }
 128
 129
 130 OBScreen::~OBScreen()
 131 {
 132   if (! _managed) return;
 133
 134   XSelectInput(otk::OBDisplay::display, _info->rootWindow(), NoEventMask);
 135
 136   // unmanage all windows
 137   while (!clients.empty())
 138     unmanageWindow(clients.front());
 139
 140   XDestroyWindow(otk::OBDisplay::display, _focuswindow);
 141   XDestroyWindow(otk::OBDisplay::display, _supportwindow);
 142
 143   delete _image_control;
 144 }
 145
 146
 147 void OBScreen::manageExisting()
 148 {
 149   unsigned int i, j, nchild;
 150   Window r, p, *children;
 151   XQueryTree(otk::OBDisplay::display, _info->rootWindow(), &r, &p,
 152              &children, &nchild);
 153
 154   // preen the window list of all icon windows... for better dockapp support
 155   for (i = 0; i < nchild; i++) {
 156     if (children[i] == None) continue;
 157
 158     XWMHints *wmhints = XGetWMHints(otk::OBDisplay::display,
 159                                     children[i]);
 160
 161     if (wmhints) {
 162       if ((wmhints->flags & IconWindowHint) &&
 163           (wmhints->icon_window != children[i])) {
 164         for (j = 0; j < nchild; j++) {
 165           if (children[j] == wmhints->icon_window) {
 166             children[j] = None;
 167             break;
 168           }
 169         }
 170       }
 171
 172       XFree(wmhints);
 173     }
 174   }
 175
 176   // manage shown windows
 177   for (i = 0; i < nchild; ++i) {
 178     if (children[i] == None)
 179       continue;
 180
 181     XWindowAttributes attrib;
 182     if (XGetWindowAttributes(otk::OBDisplay::display, children[i], &attrib)) {
 183       if (attrib.override_redirect) continue;
 184
 185       if (attrib.map_state != IsUnmapped) {
 186         manageWindow(children[i]);
 187       }
 188     }
 189   }
 190
 191   XFree(children);
 192 }
 193
 194
 195 void OBScreen::updateStrut()
 196 {
 197   _strut.left = _strut.right = _strut.top = _strut.bottom = 0;
 198
 199   OBClient::List::iterator it, end = clients.end();
 200   for (it = clients.begin(); it != end; ++it) {
 201     const otk::Strut &s = (*it)->strut();
 202     _strut.left = std::max(_strut.left, s.left);
 203     _strut.right = std::max(_strut.right, s.right);
 204     _strut.top = std::max(_strut.top, s.top);
 205     _strut.bottom = std::max(_strut.bottom, s.bottom);
 206   }
 207   calcArea();
 208 }
 209
 210
 211 void OBScreen::calcArea()
 212 {
 213   otk::Rect old_area = _area;
 214
 215 /*
 216 #ifdef    XINERAMA
 217   // reset to the full areas
 218   if (isXineramaActive())
 219     xineramaUsableArea = getXineramaAreas();
 220 #endif // XINERAMA
 221 */
 222
 223   _area.setRect(_strut.left, _strut.top,
 224                 _info->width() - (_strut.left + _strut.right),
 225                 _info->height() - (_strut.top + _strut.bottom));
 226
 227 /*
 228 #ifdef    XINERAMA
 229   if (isXineramaActive()) {
 230     // keep each of the ximerama-defined areas inside the strut
 231     RectList::iterator xit, xend = xineramaUsableArea.end();
 232     for (xit = xineramaUsableArea.begin(); xit != xend; ++xit) {
 233       if (xit->x() < usableArea.x()) {
 234         xit->setX(usableArea.x());
 235         xit->setWidth(xit->width() - usableArea.x());
 236       }
 237       if (xit->y() < usableArea.y()) {
 238         xit->setY(usableArea.y());
 239         xit->setHeight(xit->height() - usableArea.y());
 240       }
 241       if (xit->x() + xit->width() > usableArea.width())
 242         xit->setWidth(usableArea.width() - xit->x());
 243       if (xit->y() + xit->height() > usableArea.height())
 244         xit->setHeight(usableArea.height() - xit->y());
 245     }
 246   }
 247 #endif // XINERAMA
 248 */
 249
 250   if (old_area != _area)
 251     // XXX: re-maximize windows
 252
 253   setWorkArea();
 254 }
 255
 256
 257 void OBScreen::setSupportedAtoms()
 258 {
 259   // create the netwm support window
 260   _supportwindow = XCreateSimpleWindow(otk::OBDisplay::display,
 261                                        _info->rootWindow(),
 262                                        0, 0, 1, 1, 0, 0, 0);
 263   assert(_supportwindow != None);
 264
 265   // set supporting window
 266   Openbox::instance->property()->set(_info->rootWindow(),
 267                                      otk::OBProperty::net_supporting_wm_check,
 268                                      otk::OBProperty::Atom_Window,
 269                                      _supportwindow);
 270
 271   //set properties on the supporting window
 272   Openbox::instance->property()->set(_supportwindow,
 273                                      otk::OBProperty::net_wm_name,
 274                                      otk::OBProperty::utf8,
 275                                      "Openbox");
 276   Openbox::instance->property()->set(_supportwindow,
 277                                      otk::OBProperty::net_supporting_wm_check,
 278                                      otk::OBProperty::Atom_Window,
 279                                      _supportwindow);
 280
 281
 282   Atom supported[] = {
 283 /*
 284       otk::OBProperty::net_current_desktop,
 285       otk::OBProperty::net_number_of_desktops,
 286 */
 287       otk::OBProperty::net_desktop_geometry,
 288       otk::OBProperty::net_desktop_viewport,
 289       otk::OBProperty::net_active_window,
 290       otk::OBProperty::net_workarea,
 291       otk::OBProperty::net_client_list,
 292       otk::OBProperty::net_client_list_stacking,
 293       otk::OBProperty::net_desktop_names,
 294       otk::OBProperty::net_close_window,
 295       otk::OBProperty::net_wm_name,
 296       otk::OBProperty::net_wm_visible_name,
 297       otk::OBProperty::net_wm_icon_name,
 298       otk::OBProperty::net_wm_visible_icon_name,
 299 /*
 300       otk::OBProperty::net_wm_desktop,
 301 */
 302       otk::OBProperty::net_wm_strut,
 303       otk::OBProperty::net_wm_window_type,
 304       otk::OBProperty::net_wm_window_type_desktop,
 305       otk::OBProperty::net_wm_window_type_dock,
 306       otk::OBProperty::net_wm_window_type_toolbar,
 307       otk::OBProperty::net_wm_window_type_menu,
 308       otk::OBProperty::net_wm_window_type_utility,
 309       otk::OBProperty::net_wm_window_type_splash,
 310       otk::OBProperty::net_wm_window_type_dialog,
 311       otk::OBProperty::net_wm_window_type_normal,
 312 /*
 313       otk::OBProperty::net_wm_moveresize,
 314       otk::OBProperty::net_wm_moveresize_size_topleft,
 315       otk::OBProperty::net_wm_moveresize_size_topright,
 316       otk::OBProperty::net_wm_moveresize_size_bottomleft,
 317       otk::OBProperty::net_wm_moveresize_size_bottomright,
 318       otk::OBProperty::net_wm_moveresize_move,
 319 */
 320 /*
 321       otk::OBProperty::net_wm_allowed_actions,
 322       otk::OBProperty::net_wm_action_move,
 323       otk::OBProperty::net_wm_action_resize,
 324       otk::OBProperty::net_wm_action_shade,
 325       otk::OBProperty::net_wm_action_maximize_horz,
 326       otk::OBProperty::net_wm_action_maximize_vert,
 327       otk::OBProperty::net_wm_action_change_desktop,
 328       otk::OBProperty::net_wm_action_close,
 329 */
 330       otk::OBProperty::net_wm_state,
 331       otk::OBProperty::net_wm_state_modal,
 332       otk::OBProperty::net_wm_state_maximized_vert,
 333       otk::OBProperty::net_wm_state_maximized_horz,
 334       otk::OBProperty::net_wm_state_shaded,
 335       otk::OBProperty::net_wm_state_skip_taskbar,
 336       otk::OBProperty::net_wm_state_skip_pager,
 337       otk::OBProperty::net_wm_state_hidden,
 338       otk::OBProperty::net_wm_state_fullscreen,
 339       otk::OBProperty::net_wm_state_above,
 340       otk::OBProperty::net_wm_state_below,
 341     };
 342   const int num_supported = sizeof(supported)/sizeof(Atom);
 343
 344   // convert to the atom values
 345   for (int i = 0; i < num_supported; ++i)
 346     supported[i] =
 347       Openbox::instance->property()->atom((otk::OBProperty::Atoms)supported[i]);
 348
 349   Openbox::instance->property()->set(_info->rootWindow(),
 350                                      otk::OBProperty::net_supported,
 351                                      otk::OBProperty::Atom_Atom,
 352                                      supported, num_supported);
 353 }
 354
 355
 356 void OBScreen::setClientList()
 357 {
 358   Window *windows;
 359   unsigned int size = clients.size();
 360
 361   // create an array of the window ids
 362   if (size > 0) {
 363     Window *win_it;
 364
 365     windows = new Window[size];
 366     win_it = windows;
 367     OBClient::List::const_iterator it = clients.begin();
 368     const OBClient::List::const_iterator end = clients.end();
 369     for (; it != end; ++it, ++win_it)
 370       *win_it = (*it)->window();
 371   } else
 372     windows = (Window*) 0;
 373
 374   Openbox::instance->property()->set(_info->rootWindow(),
 375                                      otk::OBProperty::net_client_list,
 376                                      otk::OBProperty::Atom_Window,
 377                                      windows, size);
 378
 379   if (size)
 380     delete [] windows;
 381
 382   setStackingList();
 383 }
 384
 385
 386 void OBScreen::setStackingList()
 387 {
 388   Window *windows;
 389   unsigned int size = _stacking.size();
 390
 391   assert(size == clients.size()); // just making sure.. :)
 392
 393
 394   // create an array of the window ids
 395   if (size > 0) {
 396     Window *win_it;
 397
 398     windows = new Window[size];
 399     win_it = windows;
 400     OBClient::List::const_iterator it = _stacking.begin();
 401     const OBClient::List::const_iterator end = _stacking.end();
 402     for (; it != end; ++it, ++win_it)
 403       *win_it = (*it)->window();
 404   } else
 405     windows = (Window*) 0;
 406
 407   Openbox::instance->property()->set(_info->rootWindow(),
 408                                      otk::OBProperty::net_client_list_stacking,
 409                                      otk::OBProperty::Atom_Window,
 410                                      windows, size);
 411
 412   if (size)
 413     delete [] windows;
 414 }
 415
 416
 417 void OBScreen::setWorkArea() {
 418   unsigned long area[] = { _area.x(), _area.y(),
 419                            _area.width(), _area.height() };
 420   Openbox::instance->property()->set(_info->rootWindow(),
 421                                      otk::OBProperty::net_workarea,
 422                                      otk::OBProperty::Atom_Cardinal,
 423                                      area, 4);
 424   /*
 425   if (workspacesList.size() > 0) {
 426     unsigned long *dims = new unsigned long[4 * workspacesList.size()];
 427     for (unsigned int i = 0, m = workspacesList.size(); i < m; ++i) {
 428       // XXX: this could be different for each workspace
 429       const otk::Rect &area = availableArea();
 430       dims[(i * 4) + 0] = area.x();
 431       dims[(i * 4) + 1] = area.y();
 432       dims[(i * 4) + 2] = area.width();
 433       dims[(i * 4) + 3] = area.height();
 434     }
 435     xatom->set(getRootWindow(), otk::OBProperty::net_workarea,
 436                otk::OBProperty::Atom_Cardinal,
 437                dims, 4 * workspacesList.size());
 438     delete [] dims;
 439   } else
 440     xatom->set(getRootWindow(), otk::OBProperty::net_workarea,
 441                otk::OBProperty::Atom_Cardinal, 0, 0);
 442   */
 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   // XXX: if on the current desktop..
 506   client->frame->show();
 507
 508   // XXX: handle any requested states such as maximized
 509
 510   otk::OBDisplay::ungrab();
 511
 512   // add to the screen's list
 513   clients.push_back(client);
 514   // this puts into the stacking order, then raises it
 515   _stacking.push_back(client);
 516   restack(true, client);
 517   // update the root properties
 518   setClientList();
 519
 520   Openbox::instance->bindings()->grabButtons(true, client);
 521
 522   // XXX: make this optional or more intelligent
 523   if (client->normal())
 524     client->focus();
 525
 526   // call the python NEWWINDOW binding
 527   EventData *data = new_event_data(window, EventNewWindow, 0);
 528   Openbox::instance->bindings()->fireEvent(data);
 529   Py_DECREF((PyObject*)data);
 530
 531   printf("Managed window 0x%lx\n", window);
 532 }
 533
 534
 535 void OBScreen::unmanageWindow(OBClient *client)
 536 {
 537   OBFrame *frame = client->frame;
 538
 539   // call the python CLOSEWINDOW binding
 540   EventData *data = new_event_data(client->window(), EventCloseWindow, 0);
 541   Openbox::instance->bindings()->fireEvent(data);
 542   Py_DECREF((PyObject*)data);
 543
 544   Openbox::instance->bindings()->grabButtons(false, client);
 545
 546   // remove from the stacking order
 547   _stacking.remove(client);
 548
 549   // pass around focus if this window was focused XXX do this better!
 550   if (Openbox::instance->focusedClient() == client) {
 551     OBClient *newfocus = 0;
 552     OBClient::List::iterator it, end = _stacking.end();
 553     for (it = _stacking.begin(); it != end; ++it)
 554       if ((*it)->normal() && (*it)->focus()) {
 555         newfocus = *it;
 556         break;
 557       }
 558     if (!newfocus)
 559       client->unfocus();
 560   }
 561
 562   // remove from the wm's map
 563   Openbox::instance->removeClient(client->window());
 564   Openbox::instance->removeClient(frame->window());
 565   Openbox::instance->removeClient(frame->plate());
 566   Openbox::instance->removeClient(frame->titlebar());
 567   Openbox::instance->removeClient(frame->label());
 568   Openbox::instance->removeClient(frame->button_max());
 569   Openbox::instance->removeClient(frame->button_iconify());
 570   Openbox::instance->removeClient(frame->button_stick());
 571   Openbox::instance->removeClient(frame->button_close());
 572   Openbox::instance->removeClient(frame->handle());
 573   Openbox::instance->removeClient(frame->grip_left());
 574   Openbox::instance->removeClient(frame->grip_right());
 575   // unregister for handling events
 576   Openbox::instance->clearHandler(client->window());
 577
 578   // remove the window from our save set
 579   XChangeSaveSet(otk::OBDisplay::display, client->window(), SetModeDelete);
 580
 581   // we dont want events no more
 582   XSelectInput(otk::OBDisplay::display, client->window(), NoEventMask);
 583
 584   frame->hide();
 585
 586   // give the client its border back
 587   client->toggleClientBorder(true);
 588
 589   delete client->frame;
 590   client->frame = 0;
 591
 592   // remove from the screen's list
 593   clients.remove(client);
 594   delete client;
 595
 596   // update the root properties
 597   setClientList();
 598 }
 599
 600 void OBScreen::restack(bool raise, OBClient *client)
 601 {
 602   const int layer = client->layer();
 603   std::vector<Window> wins;
 604
 605   _stacking.remove(client);
 606
 607   // the stacking list is from highest to lowest
 608
 609   OBClient::List::iterator it = _stacking.begin(), end = _stacking.end();
 610   // insert the windows above this window
 611   for (; it != end; ++it) {
 612     if ((*it)->layer() < layer || (raise && (*it)->layer() == layer))
 613       break;
 614     wins.push_back((*it)->frame->window());
 615   }
 616   // insert our client
 617   wins.push_back(client->frame->window());
 618   _stacking.insert(it, client);
 619   // insert the remaining below this window
 620   for (; it != end; ++it)
 621     wins.push_back((*it)->frame->window());
 622
 623   XRestackWindows(otk::OBDisplay::display, &wins[0], wins.size());
 624   setStackingList();
 625 }
 626
 627 }