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

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 // Workspace.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/Xatom.h>
  31
  32 #ifdef    HAVE_STDIO_H
  33 #  include <stdio.h>
  34 #endif // HAVE_STDIO_H
  35
  36 #ifdef HAVE_STRING_H
  37 #  include <string.h>
  38 #endif // HAVE_STRING_H
  39 }
  40
  41 #include <assert.h>
  42
  43 #include <functional>
  44 #include <string>
  45
  46 using std::string;
  47
  48 #include "i18n.hh"
  49 #include "blackbox.hh"
  50 #include "Clientmenu.hh"
  51 #include "Netizen.hh"
  52 #include "Screen.hh"
  53 #include "Toolbar.hh"
  54 #include "Util.hh"
  55 #include "Window.hh"
  56 #include "Workspace.hh"
  57 #include "Windowmenu.hh"
  58
  59
  60 Workspace::Workspace(BScreen *scrn, unsigned int i) {
  61   screen = scrn;
  62
  63   cascade_x = cascade_y = 32;
  64
  65   id = i;
  66
  67   clientmenu = new Clientmenu(this);
  68
  69   lastfocus = (BlackboxWindow *) 0;
  70
  71   setName(screen->getNameOfWorkspace(id));
  72 }
  73
  74
  75 void Workspace::addWindow(BlackboxWindow *w, bool place) {
  76   assert(w != 0);
  77
  78   if (place) placeWindow(w);
  79
  80   w->setWorkspace(id);
  81   w->setWindowNumber(windowList.size());
  82
  83   stackingList.push_front(w);
  84   windowList.push_back(w);
  85
  86   clientmenu->insert(w->getTitle());
  87   clientmenu->update();
  88
  89   screen->updateNetizenWindowAdd(w->getClientWindow(), id);
  90
  91   raiseWindow(w);
  92 }
  93
  94
  95 unsigned int Workspace::removeWindow(BlackboxWindow *w) {
  96   assert(w != 0);
  97
  98   stackingList.remove(w);
  99
 100   // pass focus to the next appropriate window
 101   if ((w->isFocused() || w == lastfocus) &&
 102       ! screen->getBlackbox()->doShutdown()) {
 103     BlackboxWindow *newfocus = 0;
 104     if (w->isTransient())
 105       newfocus = w->getTransientFor();
 106     if (! newfocus && ! stackingList.empty())
 107       newfocus = stackingList.front();
 108
 109     assert(newfocus != w);  // this would be very wrong.
 110
 111     if (id == screen->getCurrentWorkspaceID()) {
 112       /*
 113         if the window is on the visible workspace, then try focus it, and fall
 114         back to the default focus target if the window won't focus.
 115       */
 116       if (! newfocus || ! newfocus->setInputFocus())
 117         screen->getBlackbox()->setFocusedWindow(0);
 118     } else if (lastfocus == w) {
 119       /*
 120         If this workspace is not the current one do not assume that
 121         w == lastfocus. If a sticky window is removed on a workspace other
 122         than where it originated, it will fire the removeWindow on a
 123         non-visible workspace.
 124       */
 125
 126       /*
 127         If the window isn't on the visible workspace, don't focus the new one,
 128         just mark it to be focused when the workspace comes into view.
 129       */
 130       setLastFocusedWindow(newfocus);
 131     }
 132   }
 133
 134   windowList.remove(w);
 135   clientmenu->remove(w->getWindowNumber());
 136   clientmenu->update();
 137
 138   screen->updateNetizenWindowDel(w->getClientWindow());
 139
 140   BlackboxWindowList::iterator it = windowList.begin();
 141   const BlackboxWindowList::iterator end = windowList.end();
 142   unsigned int i = 0;
 143   for (; it != end; ++it, ++i)
 144     (*it)->setWindowNumber(i);
 145
 146   if (i == 0)
 147     cascade_x = cascade_y = 32;
 148
 149   return i;
 150 }
 151
 152
 153 void Workspace::showAll(void) {
 154   std::for_each(stackingList.begin(), stackingList.end(),
 155                 std::mem_fun(&BlackboxWindow::show));
 156 }
 157
 158
 159 void Workspace::hideAll(void) {
 160   // withdraw in reverse order to minimize the number of Expose events
 161
 162   BlackboxWindowList lst(stackingList.rbegin(), stackingList.rend());
 163
 164   BlackboxWindowList::iterator it = lst.begin();
 165   const BlackboxWindowList::iterator end = lst.end();
 166   for (; it != end; ++it) {
 167     BlackboxWindow *bw = *it;
 168     if (! bw->isStuck())
 169       bw->withdraw();
 170   }
 171 }
 172
 173
 174 void Workspace::removeAll(void) {
 175   while (! windowList.empty())
 176     windowList.front()->iconify();
 177 }
 178
 179
 180 /*
 181  * returns the number of transients for win, plus the number of transients
 182  * associated with each transient of win
 183  */
 184 static int countTransients(const BlackboxWindow * const win) {
 185   int ret = win->getTransients().size();
 186   if (ret > 0) {
 187     BlackboxWindowList::const_iterator it, end = win->getTransients().end();
 188     for (it = win->getTransients().begin(); it != end; ++it) {
 189       ret += countTransients(*it);
 190     }
 191   }
 192   return ret;
 193 }
 194
 195
 196 /*
 197  * puts the transients of win into the stack. windows are stacked above
 198  * the window before it in the stackvector being iterated, meaning
 199  * stack[0] is on bottom, stack[1] is above stack[0], stack[2] is above
 200  * stack[1], etc...
 201  */
 202 void Workspace::raiseTransients(const BlackboxWindow * const win,
 203                                 StackVector::iterator &stack) {
 204   if (win->getTransients().size() == 0) return; // nothing to do
 205
 206   // put win's transients in the stack
 207   BlackboxWindowList::const_iterator it, end = win->getTransients().end();
 208   for (it = win->getTransients().begin(); it != end; ++it) {
 209     *stack++ = (*it)->getFrameWindow();
 210     screen->updateNetizenWindowRaise((*it)->getClientWindow());
 211
 212     if (! (*it)->isIconic()) {
 213       Workspace *wkspc = screen->getWorkspace((*it)->getWorkspaceNumber());
 214       wkspc->stackingList.remove((*it));
 215       wkspc->stackingList.push_front((*it));
 216     }
 217   }
 218
 219   // put transients of win's transients in the stack
 220   for (it = win->getTransients().begin(); it != end; ++it) {
 221     raiseTransients(*it, stack);
 222   }
 223 }
 224
 225
 226 void Workspace::lowerTransients(const BlackboxWindow * const win,
 227                                 StackVector::iterator &stack) {
 228   if (win->getTransients().size() == 0) return; // nothing to do
 229
 230   // put transients of win's transients in the stack
 231   BlackboxWindowList::const_reverse_iterator it,
 232     end = win->getTransients().rend();
 233   for (it = win->getTransients().rbegin(); it != end; ++it) {
 234     lowerTransients(*it, stack);
 235   }
 236
 237   // put win's transients in the stack
 238   for (it = win->getTransients().rbegin(); it != end; ++it) {
 239     *stack++ = (*it)->getFrameWindow();
 240     screen->updateNetizenWindowLower((*it)->getClientWindow());
 241
 242     if (! (*it)->isIconic()) {
 243       Workspace *wkspc = screen->getWorkspace((*it)->getWorkspaceNumber());
 244       wkspc->stackingList.remove((*it));
 245       wkspc->stackingList.push_back((*it));
 246     }
 247   }
 248 }
 249
 250
 251 void Workspace::raiseWindow(BlackboxWindow *w) {
 252   BlackboxWindow *win = w;
 253
 254   // walk up the transient_for's to the window that is not a transient
 255   while (win->isTransient()) {
 256     if (! win->getTransientFor()) break;
 257     win = win->getTransientFor();
 258   }
 259
 260   // get the total window count (win and all transients)
 261   unsigned int i = 1 + countTransients(win);
 262
 263   // stack the window with all transients above
 264   StackVector stack_vector(i);
 265   StackVector::iterator stack = stack_vector.begin();
 266
 267   *(stack++) = win->getFrameWindow();
 268   screen->updateNetizenWindowRaise(win->getClientWindow());
 269   if (! win->isIconic()) {
 270     Workspace *wkspc = screen->getWorkspace(win->getWorkspaceNumber());
 271     wkspc->stackingList.remove(win);
 272     wkspc->stackingList.push_front(win);
 273   }
 274
 275   raiseTransients(win, stack);
 276
 277   screen->raiseWindows(&stack_vector[0], stack_vector.size());
 278 }
 279
 280
 281 void Workspace::lowerWindow(BlackboxWindow *w) {
 282   BlackboxWindow *win = w;
 283
 284   // walk up the transient_for's to the window that is not a transient
 285   while (win->isTransient()) {
 286     if (! win->getTransientFor()) break;
 287     win = win->getTransientFor();
 288   }
 289
 290   // get the total window count (win and all transients)
 291   unsigned int i = 1 + countTransients(win);
 292
 293   // stack the window with all transients above
 294   StackVector stack_vector(i);
 295   StackVector::iterator stack = stack_vector.begin();
 296
 297   lowerTransients(win, stack);
 298
 299   *(stack++) = win->getFrameWindow();
 300   screen->updateNetizenWindowLower(win->getClientWindow());
 301   if (! win->isIconic()) {
 302     Workspace *wkspc = screen->getWorkspace(win->getWorkspaceNumber());
 303     wkspc->stackingList.remove(win);
 304     wkspc->stackingList.push_back(win);
 305   }
 306
 307   XLowerWindow(screen->getBaseDisplay()->getXDisplay(), stack_vector.front());
 308   XRestackWindows(screen->getBaseDisplay()->getXDisplay(),
 309                   &stack_vector[0], stack_vector.size());
 310   screen->lowerDesktops();
 311 }
 312
 313
 314 void Workspace::reconfigure(void) {
 315   clientmenu->reconfigure();
 316   std::for_each(windowList.begin(), windowList.end(),
 317                 std::mem_fun(&BlackboxWindow::reconfigure));
 318 }
 319
 320
 321 void Workspace::updateFocusModel(void) {
 322   std::for_each(windowList.begin(), windowList.end(),
 323                 std::mem_fun(&BlackboxWindow::updateFocusModel));
 324 }
 325
 326
 327 BlackboxWindow *Workspace::getWindow(unsigned int index) {
 328   if (index < windowList.size()) {
 329     BlackboxWindowList::iterator it = windowList.begin();
 330     for(; index > 0; --index, ++it); /* increment to index */
 331     return *it;
 332   }
 333   return 0;
 334 }
 335
 336
 337 BlackboxWindow*
 338 Workspace::getNextWindowInList(BlackboxWindow *w) {
 339   BlackboxWindowList::iterator it = std::find(windowList.begin(),
 340                                               windowList.end(),
 341                                               w);
 342   assert(it != windowList.end());   // window must be in list
 343   ++it;                             // next window
 344   if (it == windowList.end())
 345     return windowList.front();      // if we walked off the end, wrap around
 346
 347   return *it;
 348 }
 349
 350
 351 BlackboxWindow* Workspace::getPrevWindowInList(BlackboxWindow *w) {
 352   BlackboxWindowList::iterator it = std::find(windowList.begin(),
 353                                               windowList.end(),
 354                                               w);
 355   assert(it != windowList.end()); // window must be in list
 356   if (it == windowList.begin())
 357     return windowList.back();     // if we walked of the front, wrap around
 358
 359   return *(--it);
 360 }
 361
 362
 363 BlackboxWindow* Workspace::getTopWindowOnStack(void) const {
 364   return stackingList.front();
 365 }
 366
 367
 368 void Workspace::sendWindowList(Netizen &n) {
 369   BlackboxWindowList::iterator it = windowList.begin(),
 370     end = windowList.end();
 371   for(; it != end; ++it)
 372     n.sendWindowAdd((*it)->getClientWindow(), getID());
 373 }
 374
 375
 376 unsigned int Workspace::getCount(void) const {
 377   return windowList.size();
 378 }
 379
 380
 381 void Workspace::appendStackOrder(BlackboxWindowList &stack_order) const {
 382   BlackboxWindowList::const_iterator it = stackingList.begin();
 383   const BlackboxWindowList::const_iterator end = stackingList.end();
 384   for (; it != end; ++it)
 385     stack_order.push_back(*it);
 386 }
 387
 388
 389 bool Workspace::isCurrent(void) const {
 390   return (id == screen->getCurrentWorkspaceID());
 391 }
 392
 393
 394 bool Workspace::isLastWindow(const BlackboxWindow* const w) const {
 395   return (w == windowList.back());
 396 }
 397
 398 void Workspace::setCurrent(void) {
 399   screen->changeWorkspaceID(id);
 400 }
 401
 402
 403 void Workspace::setName(const string& new_name) {
 404   if (! new_name.empty()) {
 405     name = new_name;
 406   } else {
 407     string tmp =i18n(WorkspaceSet, WorkspaceDefaultNameFormat, "Workspace %d");
 408     assert(tmp.length() < 32);
 409     char default_name[32];
 410     sprintf(default_name, tmp.c_str(), id + 1);
 411     name = default_name;
 412   }
 413
 414   clientmenu->setLabel(name);
 415   clientmenu->update();
 416   screen->saveWorkspaceNames();
 417 }
 418
 419
 420 /*
 421  * Calculate free space available for window placement.
 422  */
 423 typedef std::vector<Rect> rectList;
 424
 425 static rectList calcSpace(const Rect &win, const rectList &spaces) {
 426   Rect isect, extra;
 427   rectList result;
 428   rectList::const_iterator siter, end = spaces.end();
 429   for (siter = spaces.begin(); siter != end; ++siter) {
 430     const Rect &curr = *siter;
 431
 432     if(! win.intersects(curr)) {
 433       result.push_back(curr);
 434       continue;
 435     }
 436
 437     /* Use an intersection of win and curr to determine the space around
 438      * curr that we can use.
 439      *
 440      * NOTE: the spaces calculated can overlap.
 441      */
 442     isect = curr & win;
 443
 444     // left
 445     extra.setCoords(curr.left(), curr.top(),
 446                     isect.left() - 1, curr.bottom());
 447     if (extra.valid()) result.push_back(extra);
 448
 449     // top
 450     extra.setCoords(curr.left(), curr.top(),
 451                     curr.right(), isect.top() - 1);
 452     if (extra.valid()) result.push_back(extra);
 453
 454     // right
 455     extra.setCoords(isect.right() + 1, curr.top(),
 456                     curr.right(), curr.bottom());
 457     if (extra.valid()) result.push_back(extra);
 458
 459     // bottom
 460     extra.setCoords(curr.left(), isect.bottom() + 1,
 461                     curr.right(), curr.bottom());
 462     if (extra.valid()) result.push_back(extra);
 463   }
 464   return result;
 465 }
 466
 467
 468 static bool rowRLBT(const Rect &first, const Rect &second) {
 469   if (first.bottom() == second.bottom())
 470     return first.right() > second.right();
 471   return first.bottom() > second.bottom();
 472 }
 473
 474 static bool rowRLTB(const Rect &first, const Rect &second) {
 475   if (first.y() == second.y())
 476     return first.right() > second.right();
 477   return first.y() < second.y();
 478 }
 479
 480 static bool rowLRBT(const Rect &first, const Rect &second) {
 481   if (first.bottom() == second.bottom())
 482     return first.x() < second.x();
 483   return first.bottom() > second.bottom();
 484 }
 485
 486 static bool rowLRTB(const Rect &first, const Rect &second) {
 487   if (first.y() == second.y())
 488     return first.x() < second.x();
 489   return first.y() < second.y();
 490 }
 491
 492 static bool colLRTB(const Rect &first, const Rect &second) {
 493   if (first.x() == second.x())
 494     return first.y() < second.y();
 495   return first.x() < second.x();
 496 }
 497
 498 static bool colLRBT(const Rect &first, const Rect &second) {
 499   if (first.x() == second.x())
 500     return first.bottom() > second.bottom();
 501   return first.x() < second.x();
 502 }
 503
 504 static bool colRLTB(const Rect &first, const Rect &second) {
 505   if (first.right() == second.right())
 506     return first.y() < second.y();
 507   return first.right() > second.right();
 508 }
 509
 510 static bool colRLBT(const Rect &first, const Rect &second) {
 511   if (first.right() == second.right())
 512     return first.bottom() > second.bottom();
 513   return first.right() > second.right();
 514 }
 515
 516
 517 bool Workspace::smartPlacement(Rect& win, const Rect& availableArea) {
 518   rectList spaces;
 519   spaces.push_back(availableArea); //initially the entire screen is free
 520
 521   //Find Free Spaces
 522   BlackboxWindowList::const_iterator wit = windowList.begin(),
 523     end = windowList.end();
 524   Rect tmp;
 525   for (; wit != end; ++wit) {
 526     const BlackboxWindow* const curr = *wit;
 527
 528     if (curr->isShaded()) continue;
 529
 530     tmp.setRect(curr->frameRect().x(), curr->frameRect().y(),
 531                 curr->frameRect().width() + screen->getBorderWidth(),
 532                 curr->frameRect().height() + screen->getBorderWidth());
 533
 534     spaces = calcSpace(tmp, spaces);
 535   }
 536
 537   if (screen->getPlacementPolicy() == BScreen::RowSmartPlacement) {
 538     if(screen->getRowPlacementDirection() == BScreen::LeftRight) {
 539       if(screen->getColPlacementDirection() == BScreen::TopBottom)
 540         std::sort(spaces.begin(), spaces.end(), rowLRTB);
 541       else
 542         std::sort(spaces.begin(), spaces.end(), rowLRBT);
 543     } else {
 544       if(screen->getColPlacementDirection() == BScreen::TopBottom)
 545         std::sort(spaces.begin(), spaces.end(), rowRLTB);
 546       else
 547         std::sort(spaces.begin(), spaces.end(), rowRLBT);
 548     }
 549   } else {
 550     if(screen->getColPlacementDirection() == BScreen::TopBottom) {
 551       if(screen->getRowPlacementDirection() == BScreen::LeftRight)
 552         std::sort(spaces.begin(), spaces.end(), colLRTB);
 553       else
 554         std::sort(spaces.begin(), spaces.end(), colRLTB);
 555     } else {
 556       if(screen->getRowPlacementDirection() == BScreen::LeftRight)
 557         std::sort(spaces.begin(), spaces.end(), colLRBT);
 558       else
 559         std::sort(spaces.begin(), spaces.end(), colRLBT);
 560     }
 561   }
 562
 563   rectList::const_iterator sit = spaces.begin(), spaces_end = spaces.end();
 564   for(; sit != spaces_end; ++sit) {
 565     if (sit->width() >= win.width() && sit->height() >= win.height())
 566       break;
 567   }
 568
 569   if (sit == spaces_end)
 570     return False;
 571
 572   //set new position based on the empty space found
 573   const Rect& where = *sit;
 574   win.setX(where.x());
 575   win.setY(where.y());
 576
 577   // adjust the location() based on left/right and top/bottom placement
 578   if (screen->getPlacementPolicy() == BScreen::RowSmartPlacement) {
 579     if (screen->getRowPlacementDirection() == BScreen::RightLeft)
 580       win.setX(where.right() - win.width());
 581     if (screen->getColPlacementDirection() == BScreen::BottomTop)
 582       win.setY(where.bottom() - win.height());
 583   } else {
 584     if (screen->getColPlacementDirection() == BScreen::BottomTop)
 585       win.setY(win.y() + where.height() - win.height());
 586     if (screen->getRowPlacementDirection() == BScreen::RightLeft)
 587       win.setX(win.x() + where.width() - win.width());
 588   }
 589   return True;
 590 }
 591
 592
 593 bool Workspace::underMousePlacement(Rect &win, const Rect &availableArea) {
 594   int x, y, rx, ry;
 595   Window c, r;
 596   unsigned int m;
 597   XQueryPointer(screen->getBlackbox()->getXDisplay(), screen->getRootWindow(),
 598                 &r, &c, &rx, &ry, &x, &y, &m);
 599   x = rx - win.width() / 2;
 600   y = ry - win.height() / 2;
 601
 602   if (x < availableArea.x())
 603     x = availableArea.x();
 604   if (y < availableArea.y())
 605     y = availableArea.y();
 606   if (x + win.width() > availableArea.x() + availableArea.width())
 607     x = availableArea.x() + availableArea.width() - win.width();
 608   if (y + win.height() > availableArea.y() + availableArea.height())
 609     y = availableArea.y() + availableArea.height() - win.height();
 610
 611   win.setX(x);
 612   win.setY(y);
 613
 614   return True;
 615 }
 616
 617
 618 bool Workspace::cascadePlacement(Rect &win, const Rect &availableArea) {
 619   if ((cascade_x > static_cast<signed>(availableArea.width() / 2)) ||
 620       (cascade_y > static_cast<signed>(availableArea.height() / 2)))
 621     cascade_x = cascade_y = 32;
 622
 623   if (cascade_x == 32) {
 624     cascade_x += availableArea.x();
 625     cascade_y += availableArea.y();
 626   }
 627
 628   win.setPos(cascade_x, cascade_y);
 629
 630   return True;
 631 }
 632
 633
 634 void Workspace::placeWindow(BlackboxWindow *win) {
 635   Rect availableArea(screen->availableArea()),
 636     new_win(availableArea.x(), availableArea.y(),
 637             win->frameRect().width(), win->frameRect().height());
 638   bool placed = False;
 639
 640   switch (screen->getPlacementPolicy()) {
 641   case BScreen::RowSmartPlacement:
 642   case BScreen::ColSmartPlacement:
 643     placed = smartPlacement(new_win, availableArea);
 644     break;
 645   case BScreen::UnderMousePlacement:
 646     placed = underMousePlacement(new_win, availableArea);
 647   default:
 648     break; // handled below
 649   } // switch
 650
 651   if (placed == False) {
 652     cascadePlacement(new_win, availableArea);
 653     cascade_x += win->getTitleHeight() + (screen->getBorderWidth() * 2);
 654     cascade_y += win->getTitleHeight() + (screen->getBorderWidth() * 2);
 655   }
 656
 657   if (new_win.right() > availableArea.right())
 658     new_win.setX(availableArea.left());
 659   if (new_win.bottom() > availableArea.bottom())
 660     new_win.setY(availableArea.top());
 661   win->configure(new_win.x(), new_win.y(), new_win.width(), new_win.height());
 662 }