src/Window.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 // Window.cc for Blackbox - an X11 Window manager
   3 // Copyright (c) 2001 - 2005 Sean 'Shaleh' Perry <shaleh@debian.org>
   4 // Copyright (c) 1997 - 2000, 2002 - 2005
   5 //         Bradley T Hughes <bhughes at trolltech.com>
   6 //
   7 // Permission is hereby granted, free of charge, to any person obtaining a
   8 // copy of this software and associated documentation files (the "Software"),
   9 // to deal in the Software without restriction, including without limitation
  10 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11 // and/or sell copies of the Software, and to permit persons to whom the
  12 // Software is furnished to do so, subject to the following conditions:
  13 //
  14 // The above copyright notice and this permission notice shall be included in
  15 // all copies or substantial portions of the Software.
  16 //
  17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23 // DEALINGS IN THE SOFTWARE.
  24
  25 // make sure we get bt::textPropertyToString()
  26 #include <X11/Xlib.h>
  27 #include <X11/Xutil.h>
  28
  29 #include "Window.hh"
  30 #include "Screen.hh"
  31 #include "WindowGroup.hh"
  32 #include "Windowmenu.hh"
  33 #include "Workspace.hh"
  34 #include "blackbox.hh"
  35
  36 #include <Pen.hh>
  37 #include <PixmapCache.hh>
  38 #include <Unicode.hh>
  39
  40 #include <X11/Xatom.h>
  41 #ifdef SHAPE
  42 #  include <X11/extensions/shape.h>
  43 #endif
  44
  45 #include <assert.h>
  46
  47 /*
  48   sometimes C++ is a pain in the ass... it gives us stuff like the
  49   default copy constructor and assignment operator (which does member
  50   my member copy/assignment), but what we don't get is a default
  51   comparison operator... how fucked up is that?
  52
  53   the language is designed to handle this:
  54
  55   struct foo { int a; int b };
  56   foo a = { 0 , 0 }, b = a;
  57   foo c;
  58   c = a;
  59
  60   BUT, BUT, BUT, forget about doing this:
  61
  62   a = findFoo();
  63   if (c == a)
  64      return; // nothing to do
  65   c = a;
  66
  67   ARGH!@#)(!*@#)(@#*$(!@#
  68 */
  69 bool operator==(const WMNormalHints &x, const WMNormalHints &y);
  70
  71
  72 // Event mask used for managed client windows.
  73 const unsigned long client_window_event_mask =
  74   (PropertyChangeMask | StructureNotifyMask);
  75
  76
  77 /*
  78  * Returns the appropriate WindowType based on the _NET_WM_WINDOW_TYPE
  79  */
  80 static WindowType window_type_from_atom(const bt::EWMH &ewmh, Atom atom) {
  81   if (atom == ewmh.wmWindowTypeDialog())
  82     return WindowTypeDialog;
  83   if (atom == ewmh.wmWindowTypeDesktop())
  84     return WindowTypeDesktop;
  85   if (atom == ewmh.wmWindowTypeDock())
  86     return WindowTypeDock;
  87   if (atom == ewmh.wmWindowTypeMenu())
  88     return WindowTypeMenu;
  89   if (atom == ewmh.wmWindowTypeSplash())
  90     return WindowTypeSplash;
  91   if (atom == ewmh.wmWindowTypeToolbar())
  92     return WindowTypeToolbar;
  93   if (atom == ewmh.wmWindowTypeUtility())
  94     return WindowTypeUtility;
  95   return WindowTypeNormal;
  96 }
  97
  98
  99 /*
 100  * Determine the appropriate decorations and functions based on the
 101  * given properties and hints.
 102  */
 103 static void update_decorations(WindowDecorationFlags &decorations,
 104                                WindowFunctionFlags &functions,
 105                                bool transient,
 106                                const EWMH &ewmh,
 107                                const MotifHints &motifhints,
 108                                const WMNormalHints &wmnormal,
 109                                const WMProtocols &wmprotocols) {
 110   decorations = AllWindowDecorations;
 111   functions   = AllWindowFunctions;
 112
 113   // transients should be kept on the same workspace are their parents
 114   if (transient)
 115     functions &= ~WindowFunctionChangeWorkspace;
 116
 117   // modify the window decorations/functions based on window type
 118   switch (ewmh.window_type) {
 119   case WindowTypeDialog:
 120     decorations &= ~(WindowDecorationIconify |
 121                      WindowDecorationMaximize);
 122     functions   &= ~(WindowFunctionShade |
 123                      WindowFunctionIconify |
 124                      WindowFunctionMaximize |
 125                      WindowFunctionChangeLayer |
 126                      WindowFunctionFullScreen);
 127     break;
 128
 129   case WindowTypeDesktop:
 130   case WindowTypeDock:
 131   case WindowTypeSplash:
 132     decorations = NoWindowDecorations;
 133     functions   = NoWindowFunctions;
 134     break;
 135
 136   case WindowTypeToolbar:
 137   case WindowTypeMenu:
 138     decorations &= ~(WindowDecorationHandle |
 139                      WindowDecorationGrip |
 140                      WindowDecorationBorder |
 141                      WindowDecorationIconify |
 142                      WindowDecorationMaximize);
 143     functions   &= ~(WindowFunctionResize |
 144                      WindowFunctionShade |
 145                      WindowFunctionIconify |
 146                      WindowFunctionMaximize |
 147                      WindowFunctionFullScreen);
 148     break;
 149
 150   case WindowTypeUtility:
 151     decorations &= ~(WindowDecorationIconify |
 152                      WindowDecorationMaximize);
 153     functions   &= ~(WindowFunctionShade |
 154                      WindowFunctionIconify |
 155                      WindowFunctionMaximize);
 156     break;
 157
 158   default:
 159     break;
 160   }
 161
 162   // mask away stuff turned off by Motif hints
 163   decorations &= motifhints.decorations;
 164   functions   &= motifhints.functions;
 165
 166   // disable shade if we do not have a titlebar
 167   if (!(decorations & WindowDecorationTitlebar))
 168     functions &= ~WindowFunctionShade;
 169
 170   // disable grips and maximize if we have a fixed size window
 171   if ((wmnormal.flags & (PMinSize|PMaxSize)) == (PMinSize|PMaxSize)
 172       && wmnormal.max_width <= wmnormal.min_width
 173       && wmnormal.max_height <= wmnormal.min_height) {
 174     decorations &= ~(WindowDecorationMaximize |
 175                      WindowDecorationGrip);
 176     functions   &= ~(WindowFunctionResize |
 177                      WindowFunctionMaximize);
 178   }
 179
 180   // cannot close if client doesn't understand WM_DELETE_WINDOW
 181   if (!wmprotocols.wm_delete_window) {
 182     decorations &= ~WindowDecorationClose;
 183     functions   &= ~WindowFunctionClose;
 184   }
 185 }
 186
 187
 188 /*
 189  * Calculate the frame margin based on the given decorations and
 190  * style.
 191  */
 192 static
 193 bt::EWMH::Strut update_margin(WindowDecorationFlags decorations,
 194                               const WindowStyle &style) {
 195   bt::EWMH::Strut margin;
 196
 197   const unsigned int bw = ((decorations & WindowDecorationBorder)
 198                            ? style.frame_border_width
 199                            : 0u);
 200   margin.top = margin.bottom = margin.left = margin.right = bw;
 201
 202   if (decorations & WindowDecorationTitlebar)
 203     margin.top += style.title_height - bw;
 204
 205   if (decorations & WindowDecorationHandle)
 206     margin.bottom += style.handle_height - bw;
 207
 208   return margin;
 209 }
 210
 211
 212 /*
 213  * Add specified window to the appropriate window group, creating a
 214  * new group if necessary.
 215  */
 216 static BWindowGroup *update_window_group(Window window_group,
 217                                          Blackbox *blackbox,
 218                                          BlackboxWindow *win) {
 219   BWindowGroup *group = win->findWindowGroup();
 220   if (!group) {
 221     new BWindowGroup(blackbox, window_group);
 222     group = win->findWindowGroup();
 223     assert(group != 0);
 224   }
 225   group->addWindow(win);
 226   return group;
 227 }
 228
 229
 230 /*
 231  * Calculate the size of the frame window and constrain it to the
 232  * size specified by the size hints of the client window.
 233  *
 234  * 'rect' refers to the geometry of the frame in pixels.
 235  */
 236 enum Corner {
 237   TopLeft,
 238   TopRight,
 239   BottomLeft,
 240   BottomRight
 241 };
 242 static bt::Rect constrain(const bt::Rect &rect,
 243                           const bt::EWMH::Strut &margin,
 244                           const WMNormalHints &wmnormal,
 245                           Corner corner) {
 246   bt::Rect r;
 247
 248   // 'rect' represents the requested frame size, we need to strip
 249   // 'margin' off and constrain the client size
 250   r.setCoords(rect.left() + static_cast<signed>(margin.left),
 251               rect.top() + static_cast<signed>(margin.top),
 252               rect.right() - static_cast<signed>(margin.right),
 253               rect.bottom() - static_cast<signed>(margin.bottom));
 254
 255   unsigned int dw = r.width(), dh = r.height();
 256
 257   const unsigned int base_width = (wmnormal.base_width
 258                                    ? wmnormal.base_width
 259                                    : wmnormal.min_width),
 260                     base_height = (wmnormal.base_height
 261                                    ? wmnormal.base_height
 262                                    : wmnormal.min_height);
 263
 264   // fit to min/max size
 265   if (dw < wmnormal.min_width)
 266     dw = wmnormal.min_width;
 267   if (dh < wmnormal.min_height)
 268     dh = wmnormal.min_height;
 269
 270   if (dw > wmnormal.max_width)
 271     dw = wmnormal.max_width;
 272   if (dh > wmnormal.max_height)
 273     dh = wmnormal.max_height;
 274
 275   assert(dw >= base_width && dh >= base_height);
 276
 277   // fit to size increments
 278   if (wmnormal.flags & PResizeInc) {
 279     dw = (((dw - base_width) / wmnormal.width_inc)
 280           * wmnormal.width_inc) + base_width;
 281     dh = (((dh - base_height) / wmnormal.height_inc)
 282           * wmnormal.height_inc) + base_height;
 283   }
 284
 285   /*
 286    * honor aspect ratios (based on twm which is based on uwm)
 287    *
 288    * The math looks like this:
 289    *
 290    * minAspectX    dwidth     maxAspectX
 291    * ---------- <= ------- <= ----------
 292    * minAspectY    dheight    maxAspectY
 293    *
 294    * If that is multiplied out, then the width and height are
 295    * invalid in the following situations:
 296    *
 297    * minAspectX * dheight > minAspectY * dwidth
 298    * maxAspectX * dheight < maxAspectY * dwidth
 299    *
 300    */
 301   if (wmnormal.flags & PAspect) {
 302     unsigned int delta;
 303     const unsigned int min_asp_x = wmnormal.min_aspect_x,
 304                        min_asp_y = wmnormal.min_aspect_y,
 305                        max_asp_x = wmnormal.max_aspect_x,
 306                        max_asp_y = wmnormal.max_aspect_y,
 307                            w_inc = wmnormal.width_inc,
 308                            h_inc = wmnormal.height_inc;
 309     if (min_asp_x * dh > min_asp_y * dw) {
 310       delta = ((min_asp_x * dh / min_asp_y - dw) * w_inc) / w_inc;
 311       if (dw + delta <= wmnormal.max_width) {
 312         dw += delta;
 313       } else {
 314         delta = ((dh - (dw * min_asp_y) / min_asp_x) * h_inc) / h_inc;
 315         if (dh - delta >= wmnormal.min_height) dh -= delta;
 316       }
 317     }
 318     if (max_asp_x * dh < max_asp_y * dw) {
 319       delta = ((max_asp_y * dw / max_asp_x - dh) * h_inc) / h_inc;
 320       if (dh + delta <= wmnormal.max_height) {
 321         dh += delta;
 322       } else {
 323         delta = ((dw - (dh * max_asp_x) / max_asp_y) * w_inc) / w_inc;
 324         if (dw - delta >= wmnormal.min_width) dw -= delta;
 325       }
 326     }
 327   }
 328
 329   r.setSize(dw, dh);
 330
 331   // add 'margin' back onto 'r'
 332   r.setCoords(r.left() - margin.left, r.top() - margin.top,
 333               r.right() + margin.right, r.bottom() + margin.bottom);
 334
 335   // move 'r' to the specified corner
 336   int dx = rect.right() - r.right();
 337   int dy = rect.bottom() - r.bottom();
 338
 339   switch (corner) {
 340   case TopLeft:
 341     // nothing to do
 342     break;
 343
 344   case TopRight:
 345     r.setPos(r.x() + dx, r.y());
 346     break;
 347
 348   case BottomLeft:
 349     r.setPos(r.x(), r.y() + dy);
 350     break;
 351
 352   case BottomRight:
 353     r.setPos(r.x() + dx, r.y() + dy);
 354     break;
 355   }
 356
 357   return r;
 358 }
 359
 360
 361 /*
 362  * Positions 'rect' according to the client window geometry and window
 363  * gravity.
 364  */
 365 static bt::Rect applyGravity(const bt::Rect &rect,
 366                              const bt::EWMH::Strut &margin,
 367                              int gravity) {
 368   bt::Rect r;
 369
 370   // apply horizontal window gravity
 371   switch (gravity) {
 372   default:
 373   case NorthWestGravity:
 374   case SouthWestGravity:
 375   case WestGravity:
 376     r.setX(rect.x());
 377     break;
 378
 379   case NorthGravity:
 380   case SouthGravity:
 381   case CenterGravity:
 382     r.setX(rect.x() - (margin.left + margin.right) / 2);
 383     break;
 384
 385   case NorthEastGravity:
 386   case SouthEastGravity:
 387   case EastGravity:
 388     r.setX(rect.x() - (margin.left + margin.right) + 2);
 389     break;
 390
 391   case ForgetGravity:
 392   case StaticGravity:
 393     r.setX(rect.x() - margin.left);
 394     break;
 395   }
 396
 397   // apply vertical window gravity
 398   switch (gravity) {
 399   default:
 400   case NorthWestGravity:
 401   case NorthEastGravity:
 402   case NorthGravity:
 403     r.setY(rect.y());
 404     break;
 405
 406   case CenterGravity:
 407   case EastGravity:
 408   case WestGravity:
 409     r.setY(rect.y() - ((margin.top + margin.bottom) / 2));
 410     break;
 411
 412   case SouthWestGravity:
 413   case SouthEastGravity:
 414   case SouthGravity:
 415     r.setY(rect.y() - (margin.bottom + margin.top) + 2);
 416     break;
 417
 418   case ForgetGravity:
 419   case StaticGravity:
 420     r.setY(rect.y() - margin.top);
 421     break;
 422   }
 423
 424   r.setSize(rect.width() + margin.left + margin.right,
 425             rect.height() + margin.top + margin.bottom);
 426   return r;
 427 }
 428
 429
 430 /*
 431  * The reverse of the applyGravity function.
 432  *
 433  * Positions 'rect' according to the frame window geometry and window
 434  * gravity.
 435  */
 436 static bt::Rect restoreGravity(const bt::Rect &rect,
 437                                const bt::EWMH::Strut &margin,
 438                                int gravity) {
 439   bt::Rect r;
 440
 441   // restore horizontal window gravity
 442   switch (gravity) {
 443   default:
 444   case NorthWestGravity:
 445   case SouthWestGravity:
 446   case WestGravity:
 447     r.setX(rect.x());
 448     break;
 449
 450   case NorthGravity:
 451   case SouthGravity:
 452   case CenterGravity:
 453     r.setX(rect.x() + (margin.left + margin.right) / 2);
 454     break;
 455
 456   case NorthEastGravity:
 457   case SouthEastGravity:
 458   case EastGravity:
 459     r.setX(rect.x() + (margin.left + margin.right) - 2);
 460     break;
 461
 462   case ForgetGravity:
 463   case StaticGravity:
 464     r.setX(rect.x() + margin.left);
 465     break;
 466   }
 467
 468   // restore vertical window gravity
 469   switch (gravity) {
 470   default:
 471   case NorthWestGravity:
 472   case NorthEastGravity:
 473   case NorthGravity:
 474     r.setY(rect.y());
 475     break;
 476
 477   case CenterGravity:
 478   case EastGravity:
 479   case WestGravity:
 480     r.setY(rect.y() + (margin.top + margin.bottom) / 2);
 481     break;
 482
 483   case SouthWestGravity:
 484   case SouthEastGravity:
 485   case SouthGravity:
 486     r.setY(rect.y() + (margin.top + margin.bottom) - 2);
 487     break;
 488
 489   case ForgetGravity:
 490   case StaticGravity:
 491     r.setY(rect.y() + margin.top);
 492     break;
 493   }
 494
 495   r.setSize(rect.width() - margin.left - margin.right,
 496             rect.height() - margin.top - margin.bottom);
 497   return r;
 498 }
 499
 500
 501 static bt::ustring readWMName(Blackbox *blackbox, Window window) {
 502   bt::ustring name;
 503
 504   if (!blackbox->ewmh().readWMName(window, name) || name.empty()) {
 505     XTextProperty text_prop;
 506
 507     if (XGetWMName(blackbox->XDisplay(), window, &text_prop)) {
 508       name = bt::toUnicode(bt::textPropertyToString(blackbox->XDisplay(),
 509                                                     text_prop));
 510       XFree((char *) text_prop.value);
 511     }
 512   }
 513
 514   if (name.empty())
 515     name = bt::toUnicode("Unnamed");
 516
 517   return name;
 518 }
 519
 520
 521 static bt::ustring readWMIconName(Blackbox *blackbox, Window window) {
 522   bt::ustring name;
 523
 524   if (!blackbox->ewmh().readWMIconName(window, name) || name.empty()) {
 525     XTextProperty text_prop;
 526     if (XGetWMIconName(blackbox->XDisplay(), window, &text_prop)) {
 527       name = bt::toUnicode(bt::textPropertyToString(blackbox->XDisplay(),
 528                                                     text_prop));
 529       XFree((char *) text_prop.value);
 530     }
 531   }
 532
 533   if (name.empty())
 534     return bt::ustring();
 535
 536   return name;
 537 }
 538
 539
 540 static EWMH readEWMH(const bt::EWMH &bewmh,
 541                      Window window,
 542                      int currentWorkspace) {
 543   EWMH ewmh;
 544   ewmh.window_type  = WindowTypeNormal;
 545   ewmh.workspace    = 0; // initialized properly below
 546   ewmh.modal        = false;
 547   ewmh.maxv         = false;
 548   ewmh.maxh         = false;
 549   ewmh.shaded       = false;
 550   ewmh.skip_taskbar = false;
 551   ewmh.skip_pager   = false;
 552   ewmh.hidden       = false;
 553   ewmh.fullscreen   = false;
 554   ewmh.above        = false;
 555   ewmh.below        = false;
 556
 557   // note: wm_name and wm_icon_name are read separately
 558
 559   bool ret;
 560
 561   bt::EWMH::AtomList atoms;
 562   ret = bewmh.readWMWindowType(window, atoms);
 563   if (ret) {
 564     bt::EWMH::AtomList::iterator it = atoms.begin(), end = atoms.end();
 565     for (; it != end; ++it) {
 566       if (bewmh.isSupportedWMWindowType(*it)) {
 567         ewmh.window_type = ::window_type_from_atom(bewmh, *it);
 568         break;
 569       }
 570     }
 571   }
 572
 573   atoms.clear();
 574   ret = bewmh.readWMState(window, atoms);
 575   if (ret) {
 576     bt::EWMH::AtomList::iterator it = atoms.begin(), end = atoms.end();
 577     for (; it != end; ++it) {
 578       Atom state = *it;
 579       if (state == bewmh.wmStateModal()) {
 580         ewmh.modal = true;
 581       } else if (state == bewmh.wmStateMaximizedVert()) {
 582         ewmh.maxv = true;
 583       } else if (state == bewmh.wmStateMaximizedHorz()) {
 584         ewmh.maxh = true;
 585       } else if (state == bewmh.wmStateShaded()) {
 586         ewmh.shaded = true;
 587       } else if (state == bewmh.wmStateSkipTaskbar()) {
 588         ewmh.skip_taskbar = true;
 589       } else if (state == bewmh.wmStateSkipPager()) {
 590         ewmh.skip_pager = true;
 591       } else if (state == bewmh.wmStateHidden()) {
 592         /*
 593           ignore _NET_WM_STATE_HIDDEN if present, the wm sets this
 594           state, not the application
 595         */
 596       } else if (state == bewmh.wmStateFullscreen()) {
 597         ewmh.fullscreen = true;
 598       } else if (state == bewmh.wmStateAbove()) {
 599         ewmh.above = true;
 600       } else if (state == bewmh.wmStateBelow()) {
 601         ewmh.below = true;
 602       }
 603     }
 604   }
 605
 606   switch (ewmh.window_type) {
 607   case WindowTypeDesktop:
 608   case WindowTypeDock:
 609     // these types should occupy all workspaces by default
 610     ewmh.workspace = bt::BSENTINEL;
 611     break;
 612
 613   default:
 614     if (!bewmh.readWMDesktop(window, ewmh.workspace))
 615       ewmh.workspace = currentWorkspace;
 616     break;
 617   } //switch
 618
 619   return ewmh;
 620 }
 621
 622
 623 /*
 624  * Returns the MotifWM hints for the specified window.
 625  */
 626 static MotifHints readMotifWMHints(Blackbox *blackbox, Window window) {
 627   MotifHints motif;
 628   motif.decorations = AllWindowDecorations;
 629   motif.functions   = AllWindowFunctions;
 630
 631   /*
 632     this structure only contains 3 elements, even though the Motif 2.0
 633     structure contains 5, because we only use the first 3
 634   */
 635   struct PropMotifhints {
 636     unsigned long flags;
 637     unsigned long functions;
 638     unsigned long decorations;
 639   };
 640   static const unsigned int PROP_MWM_HINTS_ELEMENTS = 3u;
 641   enum { // MWM flags
 642     MWM_HINTS_FUNCTIONS   = 1<<0,
 643     MWM_HINTS_DECORATIONS = 1<<1
 644   };
 645   enum { // MWM functions
 646     MWM_FUNC_ALL      = 1<<0,
 647     MWM_FUNC_RESIZE   = 1<<1,
 648     MWM_FUNC_MOVE     = 1<<2,
 649     MWM_FUNC_MINIMIZE = 1<<3,
 650     MWM_FUNC_MAXIMIZE = 1<<4,
 651     MWM_FUNC_CLOSE    = 1<<5
 652   };
 653   enum { // MWM decorations
 654     MWM_DECOR_ALL      = 1<<0,
 655     MWM_DECOR_BORDER   = 1<<1,
 656     MWM_DECOR_RESIZEH  = 1<<2,
 657     MWM_DECOR_TITLE    = 1<<3,
 658     MWM_DECOR_MENU     = 1<<4,
 659     MWM_DECOR_MINIMIZE = 1<<5,
 660     MWM_DECOR_MAXIMIZE = 1<<6
 661   };
 662
 663   Atom atom_return;
 664   PropMotifhints *prop = 0;
 665   int format;
 666   unsigned long num, len;
 667   int ret = XGetWindowProperty(blackbox->XDisplay(), window,
 668                                blackbox->motifWmHintsAtom(), 0,
 669                                PROP_MWM_HINTS_ELEMENTS, False,
 670                                blackbox->motifWmHintsAtom(), &atom_return,
 671                                &format, &num, &len,
 672                                (unsigned char **) &prop);
 673
 674   if (ret != Success || !prop || num != PROP_MWM_HINTS_ELEMENTS) {
 675     if (prop) XFree(prop);
 676     return motif;
 677   }
 678
 679   if (prop->flags & MWM_HINTS_FUNCTIONS) {
 680     if (prop->functions & MWM_FUNC_ALL) {
 681       motif.functions = AllWindowFunctions;
 682     } else {
 683       // default to the functions that cannot be set through
 684       // _MOTIF_WM_HINTS
 685       motif.functions = (WindowFunctionShade
 686                          | WindowFunctionChangeWorkspace
 687                          | WindowFunctionChangeLayer
 688                          | WindowFunctionFullScreen);
 689
 690       if (prop->functions & MWM_FUNC_RESIZE)
 691         motif.functions |= WindowFunctionResize;
 692       if (prop->functions & MWM_FUNC_MOVE)
 693         motif.functions |= WindowFunctionMove;
 694       if (prop->functions & MWM_FUNC_MINIMIZE)
 695         motif.functions |= WindowFunctionIconify;
 696       if (prop->functions & MWM_FUNC_MAXIMIZE)
 697         motif.functions |= WindowFunctionMaximize;
 698       if (prop->functions & MWM_FUNC_CLOSE)
 699         motif.functions |= WindowFunctionClose;
 700     }
 701   }
 702
 703   if (prop->flags & MWM_HINTS_DECORATIONS) {
 704     if (prop->decorations & MWM_DECOR_ALL) {
 705       motif.decorations = AllWindowDecorations;
 706     } else {
 707       motif.decorations = NoWindowDecorations;
 708
 709       if (prop->decorations & MWM_DECOR_BORDER)
 710         motif.decorations |= WindowDecorationBorder;
 711       if (prop->decorations & MWM_DECOR_RESIZEH)
 712         motif.decorations |= WindowDecorationHandle;
 713       if (prop->decorations & MWM_DECOR_TITLE)
 714         motif.decorations |= WindowDecorationTitlebar;
 715       if (prop->decorations & MWM_DECOR_MINIMIZE)
 716         motif.decorations |= WindowDecorationIconify;
 717       if (prop->decorations & MWM_DECOR_MAXIMIZE)
 718         motif.decorations |= WindowDecorationMaximize;
 719     }
 720   }
 721
 722   if (motif.decorations & WindowDecorationHandle) {
 723     if (motif.functions & WindowFunctionResize)
 724       motif.decorations |= WindowDecorationGrip;
 725     else
 726       motif.decorations &= ~WindowDecorationGrip;
 727   }
 728
 729   if (motif.decorations & WindowDecorationTitlebar) {
 730     if (motif.functions & WindowFunctionClose)
 731       motif.decorations |= WindowDecorationClose;
 732     else
 733       motif.decorations &= ~WindowDecorationClose;
 734   }
 735
 736   XFree(prop);
 737
 738   return motif;
 739 }
 740
 741
 742 /*
 743  * Returns the value of the WM_HINTS property.  If the property is not
 744  * set, a set of default values is returned instead.
 745  */
 746 static WMHints readWMHints(Blackbox *blackbox, Window window) {
 747   WMHints wmh;
 748   wmh.accept_focus = false;
 749   wmh.window_group = None;
 750   wmh.initial_state = NormalState;
 751
 752   XWMHints *wmhint = XGetWMHints(blackbox->XDisplay(), window);
 753   if (!wmhint) return wmh;
 754
 755   if (wmhint->flags & InputHint)
 756     wmh.accept_focus = (wmhint->input == True);
 757   if (wmhint->flags & StateHint)
 758     wmh.initial_state = wmhint->initial_state;
 759   if (wmhint->flags & WindowGroupHint)
 760     wmh.window_group = wmhint->window_group;
 761
 762   XFree(wmhint);
 763
 764   return wmh;
 765 }
 766
 767
 768 /*
 769  * Returns the value of the WM_NORMAL_HINTS property.  If the property
 770  * is not set, a set of default values is returned instead.
 771  */
 772 static WMNormalHints readWMNormalHints(Blackbox *blackbox,
 773                                        Window window,
 774                                        const bt::ScreenInfo &screenInfo) {
 775   WMNormalHints wmnormal;
 776   wmnormal.flags = 0;
 777   wmnormal.min_width    = wmnormal.min_height   = 1u;
 778   wmnormal.width_inc    = wmnormal.height_inc   = 1u;
 779   wmnormal.min_aspect_x = wmnormal.min_aspect_y = 1u;
 780   wmnormal.max_aspect_x = wmnormal.max_aspect_y = 1u;
 781   wmnormal.base_width   = wmnormal.base_height  = 0u;
 782   wmnormal.win_gravity  = NorthWestGravity;
 783
 784   /*
 785     use the full screen, not the strut modified size. otherwise when
 786     the availableArea changes max_width/height will be incorrect and
 787     lead to odd rendering bugs.
 788   */
 789   const bt::Rect &rect = screenInfo.rect();
 790   wmnormal.max_width = rect.width();
 791   wmnormal.max_height = rect.height();
 792
 793   XSizeHints sizehint;
 794   long unused;
 795   if (! XGetWMNormalHints(blackbox->XDisplay(), window, &sizehint, &unused))
 796     return wmnormal;
 797
 798   wmnormal.flags = sizehint.flags;
 799
 800   if (sizehint.flags & PMinSize) {
 801     if (sizehint.min_width > 0)
 802       wmnormal.min_width  = sizehint.min_width;
 803     if (sizehint.min_height > 0)
 804       wmnormal.min_height = sizehint.min_height;
 805
 806     /*
 807       if the minimum size is bigger then the screen, adjust the
 808       maximum size
 809     */
 810     if (wmnormal.min_width > wmnormal.max_width)
 811       wmnormal.max_width = wmnormal.min_width;
 812     if (wmnormal.min_height > wmnormal.max_height)
 813       wmnormal.max_height = wmnormal.min_height;
 814   }
 815
 816   if (sizehint.flags & PMaxSize) {
 817     if (sizehint.max_width >= static_cast<signed>(wmnormal.min_width))
 818       wmnormal.max_width  = sizehint.max_width;
 819     else
 820       wmnormal.max_width  = wmnormal.min_width;
 821
 822     if (sizehint.max_height >= static_cast<signed>(wmnormal.min_height))
 823       wmnormal.max_height = sizehint.max_height;
 824     else
 825       wmnormal.max_height = wmnormal.min_height;
 826   }
 827
 828   if (sizehint.flags & PResizeInc) {
 829     wmnormal.width_inc  = sizehint.width_inc;
 830     wmnormal.height_inc = sizehint.height_inc;
 831   }
 832
 833   if (sizehint.flags & PAspect) {
 834     wmnormal.min_aspect_x = sizehint.min_aspect.x;
 835     wmnormal.min_aspect_y = sizehint.min_aspect.y;
 836     wmnormal.max_aspect_x = sizehint.max_aspect.x;
 837     wmnormal.max_aspect_y = sizehint.max_aspect.y;
 838   }
 839
 840   if (sizehint.flags & PBaseSize) {
 841     if (sizehint.base_width <= static_cast<signed>(wmnormal.min_width))
 842       wmnormal.base_width  = sizehint.base_width;
 843     if (sizehint.base_height <= static_cast<signed>(wmnormal.min_height))
 844       wmnormal.base_height = sizehint.base_height;
 845   }
 846
 847   if (sizehint.flags & PWinGravity)
 848     wmnormal.win_gravity = sizehint.win_gravity;
 849
 850   return wmnormal;
 851 }
 852
 853
 854 /*
 855  * Retrieve which Window Manager Protocols are supported by the client
 856  * window.
 857  */
 858 static WMProtocols readWMProtocols(Blackbox *blackbox,
 859                                    Window window) {
 860   WMProtocols protocols;
 861   protocols.wm_delete_window = false;
 862   protocols.wm_take_focus    = false;
 863
 864   Atom *proto;
 865   int num_return = 0;
 866
 867   if (XGetWMProtocols(blackbox->XDisplay(), window,
 868                       &proto, &num_return)) {
 869     for (int i = 0; i < num_return; ++i) {
 870       if (proto[i] == blackbox->wmDeleteWindowAtom()) {
 871         protocols.wm_delete_window = true;
 872       } else if (proto[i] == blackbox->wmTakeFocusAtom()) {
 873         protocols.wm_take_focus = true;
 874       }
 875     }
 876     XFree(proto);
 877   }
 878
 879   return protocols;
 880 }
 881
 882
 883 /*
 884  * Reads the value of the WM_TRANSIENT_FOR property and returns a
 885  * pointer to the transient parent for this window.  If the
 886  * WM_TRANSIENT_FOR is missing or invalid, this function returns 0.
 887  *
 888  * 'client.wmhints' should be properly updated before calling this
 889  * function.
 890  *
 891  * Note: a return value of ~0ul signifies a window that should be
 892  * transient but has no discernible parent.
 893  */
 894 static Window readTransientInfo(Blackbox *blackbox,
 895                                 Window window,
 896                                 const bt::ScreenInfo &screenInfo,
 897                                 const WMHints &wmhints) {
 898   Window trans_for = None;
 899
 900   if (!XGetTransientForHint(blackbox->XDisplay(), window, &trans_for)) {
 901     // WM_TRANSIENT_FOR hint not set
 902     return 0;
 903   }
 904
 905   if (trans_for == window) {
 906     // wierd client... treat this window as a normal window
 907     return 0;
 908   }
 909
 910   if (trans_for == None || trans_for == screenInfo.rootWindow()) {
 911     /*
 912       this is a violation of the ICCCM, yet the EWMH allows this as a
 913       way to signify a group transient.
 914     */
 915     trans_for = wmhints.window_group;
 916   }
 917
 918   return trans_for;
 919 }
 920
 921
 922 static bool readState(unsigned long &current_state,
 923                       Blackbox *blackbox,
 924                       Window window) {
 925   current_state = NormalState;
 926
 927   Atom atom_return;
 928   bool ret = false;
 929   int foo;
 930   unsigned long *state, ulfoo, nitems;
 931
 932   if ((XGetWindowProperty(blackbox->XDisplay(), window,
 933                           blackbox->wmStateAtom(),
 934                           0l, 2l, False, blackbox->wmStateAtom(),
 935                           &atom_return, &foo, &nitems, &ulfoo,
 936                           (unsigned char **) &state) != Success) ||
 937       (! state)) {
 938     return false;
 939   }
 940
 941   if (nitems >= 1) {
 942     current_state = static_cast<unsigned long>(state[0]);
 943     ret = true;
 944   }
 945
 946   XFree((void *) state);
 947
 948   return ret;
 949 }
 950
 951
 952 static void clearState(Blackbox *blackbox, Window window) {
 953   XDeleteProperty(blackbox->XDisplay(), window, blackbox->wmStateAtom());
 954
 955   const bt::EWMH& ewmh = blackbox->ewmh();
 956   ewmh.removeProperty(window, ewmh.wmDesktop());
 957   ewmh.removeProperty(window, ewmh.wmState());
 958   ewmh.removeProperty(window, ewmh.wmAllowedActions());
 959   ewmh.removeProperty(window, ewmh.wmVisibleName());
 960   ewmh.removeProperty(window, ewmh.wmVisibleIconName());
 961 }
 962
 963
 964 /*
 965  * Initializes the class with default values/the window's set initial values.
 966  */
 967 BlackboxWindow::BlackboxWindow(Blackbox *b, Window w, BScreen *s) {
 968   // fprintf(stderr, "BlackboxWindow size: %d bytes\n",
 969   //         sizeof(BlackboxWindow));
 970
 971 #ifdef    DEBUG
 972   fprintf(stderr, "BlackboxWindow::BlackboxWindow(): creating 0x%lx\n", w);
 973 #endif // DEBUG
 974
 975   /*
 976     set timer to zero... it is initialized properly later, so we check
 977     if timer is zero in the destructor, and assume that the window is not
 978     fully constructed if timer is zero...
 979   */
 980   timer = (bt::Timer*) 0;
 981   blackbox = b;
 982   client.window = w;
 983   _screen = s;
 984   lastButtonPressTime = 0;
 985
 986   /*
 987     the server needs to be grabbed here to prevent client's from sending
 988     events while we are in the process of managing their window.
 989     We hold the grab until after we are done moving the window around.
 990   */
 991
 992   blackbox->XGrabServer();
 993
 994   // fetch client size and placement
 995   XWindowAttributes wattrib;
 996   if (! XGetWindowAttributes(blackbox->XDisplay(),
 997                              client.window, &wattrib) ||
 998       ! wattrib.screen || wattrib.override_redirect) {
 999 #ifdef    DEBUG
1000     fprintf(stderr,
1001             "BlackboxWindow::BlackboxWindow(): XGetWindowAttributes failed\n");
1002 #endif // DEBUG
1003
1004     blackbox->XUngrabServer();
1005     delete this;
1006     return;
1007   }
1008
1009   // set the eventmask early in the game so that we make sure we get
1010   // all the events we are interested in
1011   XSetWindowAttributes attrib_set;
1012   attrib_set.event_mask = ::client_window_event_mask;
1013   attrib_set.do_not_propagate_mask = ButtonPressMask | ButtonReleaseMask |
1014                                      ButtonMotionMask;
1015   XChangeWindowAttributes(blackbox->XDisplay(), client.window,
1016                           CWEventMask|CWDontPropagate, &attrib_set);
1017
1018   client.colormap = wattrib.colormap;
1019   window_number = bt::BSENTINEL;
1020   client.strut = 0;
1021   /*
1022     set the initial size and location of client window (relative to the
1023     _root window_). This position is the reference point used with the
1024     window's gravity to find the window's initial position.
1025   */
1026   client.rect.setRect(wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1027   client.premax = client.rect;
1028   client.old_bw = wattrib.border_width;
1029   client.current_state = NormalState;
1030
1031   frame.window = frame.plate = frame.title = frame.handle = None;
1032   frame.close_button = frame.iconify_button = frame.maximize_button = None;
1033   frame.right_grip = frame.left_grip = None;
1034   frame.utitle = frame.ftitle = frame.uhandle = frame.fhandle = None;
1035   frame.ulabel = frame.flabel = frame.ubutton = frame.fbutton = None;
1036   frame.pbutton = frame.ugrip = frame.fgrip = None;
1037
1038   timer = new bt::Timer(blackbox, this);
1039   timer->setTimeout(blackbox->resource().autoRaiseDelay());
1040
1041   client.title = ::readWMName(blackbox, client.window);
1042   client.icon_title = ::readWMIconName(blackbox, client.window);
1043
1044   // get size, aspect, minimum/maximum size, ewmh and other hints set
1045   // by the client
1046   client.ewmh = ::readEWMH(blackbox->ewmh(), client.window,
1047                            _screen->currentWorkspace());
1048   client.motif = ::readMotifWMHints(blackbox, client.window);
1049   client.wmhints = ::readWMHints(blackbox, client.window);
1050   client.wmnormal = ::readWMNormalHints(blackbox, client.window,
1051                                         _screen->screenInfo());
1052   client.wmprotocols = ::readWMProtocols(blackbox, client.window);
1053   client.transient_for = ::readTransientInfo(blackbox, client.window,
1054                                              _screen->screenInfo(),
1055                                              client.wmhints);
1056
1057   if (client.wmhints.window_group != None)
1058     (void) ::update_window_group(client.wmhints.window_group, blackbox, this);
1059
1060   if (isTransient()) {
1061     // add ourselves to our transient_for
1062     BlackboxWindow *win = findTransientFor();
1063     if (win) {
1064       win->addTransient(this);
1065       client.ewmh.workspace = win->workspace();
1066       setLayer(win->layer());
1067     } else if (isGroupTransient()) {
1068       BWindowGroup *group = findWindowGroup();
1069       if (group)
1070         group->addTransient(this);
1071     } else {
1072       // broken client
1073       client.transient_for = 0;
1074     }
1075   }
1076
1077   client.state.visible = false;
1078   client.state.iconic = false;
1079   client.state.moving = false;
1080   client.state.resizing = false;
1081   client.state.focused = false;
1082
1083   switch (windowType()) {
1084   case WindowTypeDesktop:
1085     setLayer(StackingList::LayerDesktop);
1086     break;
1087
1088   case WindowTypeDock:
1089     setLayer(StackingList::LayerAbove);
1090     // fallthrough intended
1091
1092   default:
1093     if (client.ewmh.above)
1094       setLayer(StackingList::LayerAbove);
1095     else if (client.ewmh.below)
1096       setLayer(StackingList::LayerBelow);
1097     break;
1098   } // switch
1099
1100   ::update_decorations(client.decorations,
1101                        client.functions,
1102                        isTransient(),
1103                        client.ewmh,
1104                        client.motif,
1105                        client.wmnormal,
1106                        client.wmprotocols);
1107
1108   // sanity checks
1109   if (client.wmhints.initial_state == IconicState
1110       && !hasWindowFunction(WindowFunctionIconify))
1111     client.wmhints.initial_state = NormalState;
1112   if (isMaximized() && !hasWindowFunction(WindowFunctionMaximize))
1113     client.ewmh.maxv = client.ewmh.maxh = false;
1114   if (isFullScreen() && !hasWindowFunction(WindowFunctionFullScreen))
1115     client.ewmh.fullscreen = false;
1116
1117   bt::EWMH::Strut strut;
1118   if (blackbox->ewmh().readWMStrut(client.window, &strut)) {
1119     client.strut = new bt::EWMH::Strut;
1120     *client.strut = strut;
1121     _screen->addStrut(client.strut);
1122   }
1123
1124   /*
1125     if we just managed the group leader for an existing group, move
1126     all group transients to this window
1127   */
1128   {
1129     BWindowGroup *group = blackbox->findWindowGroup(client.window);
1130     if (group) {
1131       BlackboxWindowList transientList = group->transients();
1132       BlackboxWindowList::const_iterator it = transientList.begin();
1133       const BlackboxWindowList::const_iterator end = transientList.end();
1134       for (; it != end; ++it) {
1135         BlackboxWindow * const w1 = *it;
1136         if (w1->client.transient_for != client.window)
1137           continue;
1138         group->removeTransient(w1);
1139         addTransient(w1);
1140         w1->changeWorkspace(workspace());
1141         w1->changeLayer(layer());
1142       }
1143     }
1144   }
1145
1146   frame.window = createToplevelWindow();
1147   blackbox->insertEventHandler(frame.window, this);
1148
1149   frame.plate = createChildWindow(frame.window, NoEventMask);
1150   blackbox->insertEventHandler(frame.plate, this);
1151
1152   if (client.decorations & WindowDecorationTitlebar)
1153     createTitlebar();
1154
1155   if (client.decorations & WindowDecorationHandle)
1156     createHandle();
1157
1158   // apply the size and gravity to the frame
1159   const WindowStyle &style = _screen->resource().windowStyle();
1160   frame.margin = ::update_margin(client.decorations, style);
1161   frame.rect = ::applyGravity(client.rect,
1162                               frame.margin,
1163                               client.wmnormal.win_gravity);
1164
1165   associateClientWindow();
1166
1167   blackbox->insertEventHandler(client.window, this);
1168   blackbox->insertWindow(client.window, this);
1169   blackbox->insertWindow(frame.plate, this);
1170
1171   // preserve the window's initial state on first map, and its current
1172   // state across a restart
1173   if (!readState(client.current_state, blackbox, client.window))
1174     client.current_state = client.wmhints.initial_state;
1175
1176   if (client.state.iconic) {
1177     // prepare the window to be iconified
1178     client.current_state = IconicState;
1179     client.state.iconic = False;
1180   } else if (workspace() != bt::BSENTINEL &&
1181              workspace() != _screen->currentWorkspace()) {
1182     client.current_state = WithdrawnState;
1183   }
1184
1185   blackbox->XUngrabServer();
1186
1187   grabButtons();
1188
1189   XMapSubwindows(blackbox->XDisplay(), frame.window);
1190
1191   if (isFullScreen()) {
1192     client.ewmh.fullscreen = false; // trick setFullScreen into working
1193     setFullScreen(true);
1194   } else {
1195     if (isMaximized()) {
1196       remaximize();
1197     } else {
1198       const unsigned long save_state = client.current_state;
1199
1200       bt::Rect r = frame.rect;
1201       // trick configure into working
1202       frame.rect = bt::Rect();
1203       configure(r);
1204
1205       if (isShaded()) {
1206         client.ewmh.shaded = false;
1207         setShaded(true);
1208       }
1209
1210       if (isShaded() && save_state != IconicState) {
1211         /*
1212           At this point in the life of a window, current_state should
1213           only be set to IconicState if the window was an *icon*, not
1214           if it was shaded.
1215         */
1216         client.current_state = save_state;
1217       }
1218     }
1219   }
1220 }
1221
1222
1223 BlackboxWindow::~BlackboxWindow(void) {
1224 #ifdef    DEBUG
1225   fprintf(stderr, "BlackboxWindow::~BlackboxWindow: destroying 0x%lx\n",
1226           client.window);
1227 #endif // DEBUG
1228
1229   if (! timer) // window not managed...
1230     return;
1231
1232   if (client.state.moving || client.state.resizing) {
1233     _screen->hideGeometry();
1234     XUngrabPointer(blackbox->XDisplay(), blackbox->XTime());
1235   }
1236
1237   delete timer;
1238
1239   if (client.strut) {
1240     _screen->removeStrut(client.strut);
1241     delete client.strut;
1242     client.strut = 0;
1243   }
1244
1245   BWindowGroup *group = findWindowGroup();
1246
1247   if (isTransient()) {
1248     // remove ourselves from our transient_for
1249     BlackboxWindow *win = findTransientFor();
1250     if (win) {
1251       win->removeTransient(this);
1252     } else if (isGroupTransient()) {
1253       if (group)
1254         group->removeTransient(this);
1255     }
1256     client.transient_for = 0;
1257   }
1258
1259   if (group)
1260     group->removeWindow(this);
1261
1262   if (frame.title)
1263     destroyTitlebar();
1264
1265   if (frame.handle)
1266     destroyHandle();
1267
1268   blackbox->removeEventHandler(client.window);
1269   blackbox->removeWindow(client.window);
1270
1271   blackbox->removeEventHandler(frame.plate);
1272   blackbox->removeWindow(frame.plate);
1273   XDestroyWindow(blackbox->XDisplay(), frame.plate);
1274
1275   blackbox->removeEventHandler(frame.window);
1276   XDestroyWindow(blackbox->XDisplay(), frame.window);
1277 }
1278
1279
1280 /*
1281  * Creates a new top level window, with a given location, size, and border
1282  * width.
1283  * Returns: the newly created window
1284  */
1285 Window BlackboxWindow::createToplevelWindow(void) {
1286   XSetWindowAttributes attrib_create;
1287   unsigned long create_mask = CWColormap | CWOverrideRedirect | CWEventMask;
1288
1289   attrib_create.colormap = _screen->screenInfo().colormap();
1290   attrib_create.override_redirect = True;
1291   attrib_create.event_mask = EnterWindowMask | LeaveWindowMask;
1292
1293   return XCreateWindow(blackbox->XDisplay(),
1294                        _screen->screenInfo().rootWindow(), 0, 0, 1, 1, 0,
1295                        _screen->screenInfo().depth(), InputOutput,
1296                        _screen->screenInfo().visual(),
1297                        create_mask, &attrib_create);
1298 }
1299
1300
1301 /*
1302  * Creates a child window, and optionally associates a given cursor with
1303  * the new window.
1304  */
1305 Window BlackboxWindow::createChildWindow(Window parent,
1306                                          unsigned long event_mask,
1307                                          Cursor cursor) {
1308   XSetWindowAttributes attrib_create;
1309   unsigned long create_mask = CWEventMask;
1310
1311   attrib_create.event_mask = event_mask;
1312
1313   if (cursor) {
1314     create_mask |= CWCursor;
1315     attrib_create.cursor = cursor;
1316   }
1317
1318   return XCreateWindow(blackbox->XDisplay(), parent, 0, 0, 1, 1, 0,
1319                        _screen->screenInfo().depth(), InputOutput,
1320                        _screen->screenInfo().visual(),
1321                        create_mask, &attrib_create);
1322 }
1323
1324
1325 /*
1326  * Reparents the client window into the newly created frame.
1327  *
1328  * Note: the server must be grabbed before calling this function.
1329  */
1330 void BlackboxWindow::associateClientWindow(void) {
1331   XSetWindowBorderWidth(blackbox->XDisplay(), client.window, 0);
1332   XChangeSaveSet(blackbox->XDisplay(), client.window, SetModeInsert);
1333
1334   XSelectInput(blackbox->XDisplay(), frame.plate,
1335                FocusChangeMask | SubstructureRedirectMask);
1336
1337   XSelectInput(blackbox->XDisplay(), client.window,
1338                client_window_event_mask & ~StructureNotifyMask);
1339   XReparentWindow(blackbox->XDisplay(), client.window, frame.plate, 0, 0);
1340   XSelectInput(blackbox->XDisplay(), client.window, client_window_event_mask);
1341
1342 #ifdef    SHAPE
1343   if (blackbox->hasShapeExtensions()) {
1344     XShapeSelectInput(blackbox->XDisplay(), client.window,
1345                       ShapeNotifyMask);
1346
1347     Bool shaped = False;
1348     int foo;
1349     unsigned int ufoo;
1350
1351     XShapeQueryExtents(blackbox->XDisplay(), client.window, &shaped,
1352                        &foo, &foo, &ufoo, &ufoo, &foo, &foo, &foo,
1353                        &ufoo, &ufoo);
1354     client.state.shaped = shaped;
1355   }
1356 #endif // SHAPE
1357 }
1358
1359
1360 void BlackboxWindow::decorate(void) {
1361   const WindowStyle &style = _screen->resource().windowStyle();
1362   if (client.decorations & WindowDecorationTitlebar) {
1363     // render focused button texture
1364     frame.fbutton =
1365       bt::PixmapCache::find(_screen->screenNumber(),
1366                             style.focus.button,
1367                             style.button_width,
1368                             style.button_width,
1369                             frame.fbutton);
1370
1371     // render unfocused button texture
1372     frame.ubutton =
1373       bt::PixmapCache::find(_screen->screenNumber(),
1374                             style.unfocus.button,
1375                             style.button_width,
1376                             style.button_width,
1377                             frame.ubutton);
1378
1379     // render pressed button texture
1380     frame.pbutton =
1381       bt::PixmapCache::find(_screen->screenNumber(),
1382                             style.pressed,
1383                             style.button_width,
1384                             style.button_width,
1385                             frame.pbutton);
1386
1387     // render focused titlebar texture
1388     frame.ftitle =
1389       bt::PixmapCache::find(_screen->screenNumber(),
1390                             style.focus.title,
1391                             frame.rect.width(),
1392                             style.title_height,
1393                             frame.ftitle);
1394
1395     // render unfocused titlebar texture
1396     frame.utitle =
1397       bt::PixmapCache::find(_screen->screenNumber(),
1398                             style.unfocus.title,
1399                             frame.rect.width(),
1400                             style.title_height,
1401                             frame.utitle);
1402
1403     // render focused label texture
1404     frame.flabel =
1405       bt::PixmapCache::find(_screen->screenNumber(),
1406                             style.focus.label,
1407                             frame.label_w,
1408                             style.label_height,
1409                             frame.flabel);
1410
1411     // render unfocused label texture
1412     frame.ulabel =
1413       bt::PixmapCache::find(_screen->screenNumber(),
1414                             style.unfocus.label,
1415                             frame.label_w,
1416                             style.label_height,
1417                             frame.ulabel);
1418   }
1419
1420   if (client.decorations & WindowDecorationHandle) {
1421     frame.fhandle =
1422       bt::PixmapCache::find(_screen->screenNumber(),
1423                             style.focus.handle,
1424                             frame.rect.width(),
1425                             style.handle_height,
1426                             frame.fhandle);
1427
1428     frame.uhandle =
1429       bt::PixmapCache::find(_screen->screenNumber(),
1430                             style.unfocus.handle,
1431                             frame.rect.width(),
1432                             style.handle_height,
1433                             frame.uhandle);
1434   }
1435
1436   if (client.decorations & WindowDecorationGrip) {
1437     frame.fgrip =
1438       bt::PixmapCache::find(_screen->screenNumber(),
1439                             style.focus.grip,
1440                             style.grip_width,
1441                             style.handle_height,
1442                             frame.fgrip);
1443
1444     frame.ugrip =
1445       bt::PixmapCache::find(_screen->screenNumber(),
1446                             style.unfocus.grip,
1447                             style.grip_width,
1448                             style.handle_height,
1449                             frame.ugrip);
1450   }
1451 }
1452
1453
1454 void BlackboxWindow::createHandle(void) {
1455   frame.handle = createChildWindow(frame.window,
1456                                    ButtonPressMask | ButtonReleaseMask |
1457                                    ButtonMotionMask | ExposureMask);
1458   blackbox->insertEventHandler(frame.handle, this);
1459
1460   if (client.decorations & WindowDecorationGrip)
1461     createGrips();
1462 }
1463
1464
1465 void BlackboxWindow::destroyHandle(void) {
1466   if (frame.left_grip || frame.right_grip)
1467     destroyGrips();
1468
1469   if (frame.fhandle) bt::PixmapCache::release(frame.fhandle);
1470   if (frame.uhandle) bt::PixmapCache::release(frame.uhandle);
1471
1472   frame.fhandle = frame.uhandle = None;
1473
1474   blackbox->removeEventHandler(frame.handle);
1475   XDestroyWindow(blackbox->XDisplay(), frame.handle);
1476   frame.handle = None;
1477 }
1478
1479
1480 void BlackboxWindow::createGrips(void) {
1481   frame.left_grip =
1482     createChildWindow(frame.handle,
1483                       ButtonPressMask | ButtonReleaseMask |
1484                       ButtonMotionMask | ExposureMask,
1485                       blackbox->resource().cursors().resize_bottom_left);
1486   blackbox->insertEventHandler(frame.left_grip, this);
1487
1488   frame.right_grip =
1489     createChildWindow(frame.handle,
1490                       ButtonPressMask | ButtonReleaseMask |
1491                       ButtonMotionMask | ExposureMask,
1492                       blackbox->resource().cursors().resize_bottom_right);
1493   blackbox->insertEventHandler(frame.right_grip, this);
1494 }
1495
1496
1497 void BlackboxWindow::destroyGrips(void) {
1498   if (frame.fgrip) bt::PixmapCache::release(frame.fgrip);
1499   if (frame.ugrip) bt::PixmapCache::release(frame.ugrip);
1500
1501   frame.fgrip = frame.ugrip = None;
1502
1503   blackbox->removeEventHandler(frame.left_grip);
1504   blackbox->removeEventHandler(frame.right_grip);
1505
1506   XDestroyWindow(blackbox->XDisplay(), frame.left_grip);
1507   XDestroyWindow(blackbox->XDisplay(), frame.right_grip);
1508   frame.left_grip = frame.right_grip = None;
1509 }
1510
1511
1512 void BlackboxWindow::createTitlebar(void) {
1513   frame.title = createChildWindow(frame.window,
1514                                   ButtonPressMask | ButtonReleaseMask |
1515                                   ButtonMotionMask | ExposureMask);
1516   frame.label = createChildWindow(frame.title,
1517                                   ButtonPressMask | ButtonReleaseMask |
1518                                   ButtonMotionMask | ExposureMask);
1519   blackbox->insertEventHandler(frame.title, this);
1520   blackbox->insertEventHandler(frame.label, this);
1521
1522   if (client.decorations & WindowDecorationIconify) createIconifyButton();
1523   if (client.decorations & WindowDecorationMaximize) createMaximizeButton();
1524   if (client.decorations & WindowDecorationClose) createCloseButton();
1525 }
1526
1527
1528 void BlackboxWindow::destroyTitlebar(void) {
1529   if (frame.close_button)
1530     destroyCloseButton();
1531
1532   if (frame.iconify_button)
1533     destroyIconifyButton();
1534
1535   if (frame.maximize_button)
1536     destroyMaximizeButton();
1537
1538   if (frame.fbutton) bt::PixmapCache::release(frame.fbutton);
1539   if (frame.ubutton) bt::PixmapCache::release(frame.ubutton);
1540   if (frame.pbutton) bt::PixmapCache::release(frame.pbutton);
1541   if (frame.ftitle)  bt::PixmapCache::release(frame.ftitle);
1542   if (frame.utitle)  bt::PixmapCache::release(frame.utitle);
1543   if (frame.flabel)  bt::PixmapCache::release(frame.flabel);
1544   if (frame.ulabel)  bt::PixmapCache::release(frame.ulabel);
1545
1546   frame.fbutton = frame.ubutton = frame.pbutton =
1547    frame.ftitle = frame.utitle =
1548    frame.flabel = frame.ulabel = None;
1549
1550   blackbox->removeEventHandler(frame.title);
1551   blackbox->removeEventHandler(frame.label);
1552
1553   XDestroyWindow(blackbox->XDisplay(), frame.label);
1554   XDestroyWindow(blackbox->XDisplay(), frame.title);
1555   frame.title = frame.label = None;
1556 }
1557
1558
1559 void BlackboxWindow::createCloseButton(void) {
1560   if (frame.title != None) {
1561     frame.close_button = createChildWindow(frame.title,
1562                                            ButtonPressMask |
1563                                            ButtonReleaseMask |
1564                                            ButtonMotionMask | ExposureMask);
1565     blackbox->insertEventHandler(frame.close_button, this);
1566   }
1567 }
1568
1569
1570 void BlackboxWindow::destroyCloseButton(void) {
1571   blackbox->removeEventHandler(frame.close_button);
1572   XDestroyWindow(blackbox->XDisplay(), frame.close_button);
1573   frame.close_button = None;
1574 }
1575
1576
1577 void BlackboxWindow::createIconifyButton(void) {
1578   if (frame.title != None) {
1579     frame.iconify_button = createChildWindow(frame.title,
1580                                              ButtonPressMask |
1581                                              ButtonReleaseMask |
1582                                              ButtonMotionMask | ExposureMask);
1583     blackbox->insertEventHandler(frame.iconify_button, this);
1584   }
1585 }
1586
1587
1588 void BlackboxWindow::destroyIconifyButton(void) {
1589   blackbox->removeEventHandler(frame.iconify_button);
1590   XDestroyWindow(blackbox->XDisplay(), frame.iconify_button);
1591   frame.iconify_button = None;
1592 }
1593
1594
1595 void BlackboxWindow::createMaximizeButton(void) {
1596   if (frame.title != None) {
1597     frame.maximize_button = createChildWindow(frame.title,
1598                                               ButtonPressMask |
1599                                               ButtonReleaseMask |
1600                                               ButtonMotionMask | ExposureMask);
1601     blackbox->insertEventHandler(frame.maximize_button, this);
1602   }
1603 }
1604
1605
1606 void BlackboxWindow::destroyMaximizeButton(void) {
1607   blackbox->removeEventHandler(frame.maximize_button);
1608   XDestroyWindow(blackbox->XDisplay(), frame.maximize_button);
1609   frame.maximize_button = None;
1610 }
1611
1612
1613 void BlackboxWindow::positionButtons(bool redecorate_label) {
1614   // we need to use signed ints here to detect windows that are too small
1615   const WindowStyle &style = _screen->resource().windowStyle();
1616   const int extra = style.title_margin == 0 ?
1617                     style.focus.button.borderWidth() : 0,
1618                bw = style.button_width + style.title_margin
1619                     - extra,
1620                by = style.title_margin +
1621                     style.focus.title.borderWidth();
1622   int lx = by, lw = frame.rect.width() - by;
1623
1624   if (client.decorations & WindowDecorationIconify) {
1625     if (frame.iconify_button == None) createIconifyButton();
1626
1627     XMoveResizeWindow(blackbox->XDisplay(), frame.iconify_button, by, by,
1628                       style.button_width, style.button_width);
1629     XMapWindow(blackbox->XDisplay(), frame.iconify_button);
1630
1631     lx += bw;
1632     lw -= bw;
1633   } else if (frame.iconify_button) {
1634     destroyIconifyButton();
1635   }
1636
1637   int bx = frame.rect.width() - bw
1638            - style.focus.title.borderWidth() - extra;
1639
1640   if (client.decorations & WindowDecorationClose) {
1641     if (frame.close_button == None) createCloseButton();
1642
1643     XMoveResizeWindow(blackbox->XDisplay(), frame.close_button, bx, by,
1644                       style.button_width, style.button_width);
1645     XMapWindow(blackbox->XDisplay(), frame.close_button);
1646
1647     bx -= bw;
1648     lw -= bw;
1649   } else if (frame.close_button) {
1650     destroyCloseButton();
1651   }
1652
1653   if (client.decorations & WindowDecorationMaximize) {
1654     if (frame.maximize_button == None) createMaximizeButton();
1655
1656     XMoveResizeWindow(blackbox->XDisplay(), frame.maximize_button, bx, by,
1657                       style.button_width, style.button_width);
1658     XMapWindow(blackbox->XDisplay(), frame.maximize_button);
1659
1660     bx -= bw;
1661     lw -= bw;
1662   } else if (frame.maximize_button) {
1663     destroyMaximizeButton();
1664   }
1665
1666   if (lw > by) {
1667     frame.label_w = lw - by;
1668     XMoveResizeWindow(blackbox->XDisplay(), frame.label, lx, by,
1669                       frame.label_w, style.label_height);
1670     XMapWindow(blackbox->XDisplay(), frame.label);
1671
1672     if (redecorate_label) {
1673       frame.flabel =
1674         bt::PixmapCache::find(_screen->screenNumber(),
1675                               style.focus.label,
1676                               frame.label_w, style.label_height,
1677                               frame.flabel);
1678       frame.ulabel =
1679         bt::PixmapCache::find(_screen->screenNumber(),
1680                               style.unfocus.label,
1681                               frame.label_w, style.label_height,
1682                               frame.ulabel);
1683     }
1684
1685     const bt::ustring ellided =
1686       bt::ellideText(client.title, frame.label_w, bt::toUnicode("..."),
1687                      _screen->screenNumber(), style.font);
1688
1689     if (ellided != client.visible_title) {
1690       client.visible_title = ellided;
1691       blackbox->ewmh().setWMVisibleName(client.window, client.visible_title);
1692     }
1693   } else {
1694     frame.label_w = 1;
1695     XUnmapWindow(blackbox->XDisplay(), frame.label);
1696   }
1697
1698   redrawLabel();
1699   redrawAllButtons();
1700 }
1701
1702
1703 void BlackboxWindow::reconfigure(void) {
1704   const WindowStyle &style = _screen->resource().windowStyle();
1705   if (isMaximized()) {
1706     // update the frame margin in case the style has changed
1707     frame.margin = ::update_margin(client.decorations, style);
1708
1709     // make sure maximized windows have the correct size after a style
1710     // change
1711     remaximize();
1712   } else {
1713     // get the client window geometry as if it was unmanaged
1714     bt::Rect r = frame.rect;
1715     if (client.ewmh.shaded) {
1716       r.setHeight(client.rect.height() + frame.margin.top
1717                   + frame.margin.bottom);
1718     }
1719     r = ::restoreGravity(r, frame.margin, client.wmnormal.win_gravity);
1720
1721     // update the frame margin in case the style has changed
1722     frame.margin = ::update_margin(client.decorations, style);
1723
1724     // get the frame window geometry from the client window geometry
1725     // calculated above
1726     r = ::applyGravity(r, frame.margin, client.wmnormal.win_gravity);
1727     if (client.ewmh.shaded) {
1728       frame.rect = r;
1729
1730       positionWindows();
1731       decorate();
1732
1733       // keep the window shaded
1734       frame.rect.setHeight(style.title_height);
1735       XResizeWindow(blackbox->XDisplay(), frame.window,
1736                     frame.rect.width(), frame.rect.height());
1737     } else {
1738       // trick configure into working
1739       frame.rect = bt::Rect();
1740       configure(r);
1741     }
1742   }
1743
1744   ungrabButtons();
1745   grabButtons();
1746 }
1747
1748
1749 void BlackboxWindow::grabButtons(void) {
1750   if (blackbox->resource().focusModel() == ClickToFocusModel
1751       || blackbox->resource().clickRaise())
1752     // grab button 1 for changing focus/raising
1753     blackbox->grabButton(Button1, 0, frame.plate, True, ButtonPressMask,
1754                          GrabModeSync, GrabModeSync, frame.plate, None,
1755                          blackbox->resource().allowScrollLock());
1756
1757   if (hasWindowFunction(WindowFunctionMove))
1758     blackbox->grabButton(Button1, Mod1Mask, frame.window, True,
1759                          ButtonReleaseMask | ButtonMotionMask, GrabModeAsync,
1760                          GrabModeAsync, frame.window,
1761                          blackbox->resource().cursors().move,
1762                          blackbox->resource().allowScrollLock());
1763   if (hasWindowFunction(WindowFunctionResize))
1764     blackbox->grabButton(Button3, Mod1Mask, frame.window, True,
1765                          ButtonReleaseMask | ButtonMotionMask, GrabModeAsync,
1766                          GrabModeAsync, frame.window,
1767                          None, blackbox->resource().allowScrollLock());
1768   // alt+middle lowers the window
1769   blackbox->grabButton(Button2, Mod1Mask, frame.window, True,
1770                        ButtonReleaseMask, GrabModeAsync, GrabModeAsync,
1771                        frame.window, None,
1772                        blackbox->resource().allowScrollLock());
1773
1774   blackbox->grabButton(Button3, Mod4Mask, frame.window, True,
1775                        ButtonReleaseMask, GrabModeAsync, GrabModeAsync,
1776                        frame.window, None,
1777                        blackbox->resource().allowScrollLock());
1778 }
1779
1780
1781 void BlackboxWindow::ungrabButtons(void) {
1782   blackbox->ungrabButton(Button1, 0, frame.plate);
1783   blackbox->ungrabButton(Button1, Mod1Mask, frame.window);
1784   blackbox->ungrabButton(Button2, Mod1Mask, frame.window);
1785   blackbox->ungrabButton(Button3, Mod1Mask, frame.window);
1786   blackbox->ungrabButton(Button3, Mod4Mask, frame.window);
1787 }
1788
1789
1790 void BlackboxWindow::positionWindows(void) {
1791   const WindowStyle &style = _screen->resource().windowStyle();
1792   const unsigned int bw = (hasWindowDecoration(WindowDecorationBorder)
1793                            ? style.frame_border_width
1794                            : 0);
1795
1796   XMoveResizeWindow(blackbox->XDisplay(), frame.plate,
1797                     frame.margin.left - bw,
1798                     frame.margin.top - bw,
1799                     client.rect.width(), client.rect.height());
1800   XSetWindowBorderWidth(blackbox->XDisplay(), frame.plate, bw);
1801   XMoveResizeWindow(blackbox->XDisplay(), client.window,
1802                     0, 0, client.rect.width(), client.rect.height());
1803   // ensure client.rect contains the real location
1804   client.rect.setPos(frame.rect.left() + frame.margin.left,
1805                      frame.rect.top() + frame.margin.top);
1806
1807   if (client.decorations & WindowDecorationTitlebar) {
1808     if (frame.title == None) createTitlebar();
1809
1810     XMoveResizeWindow(blackbox->XDisplay(), frame.title,
1811                       0, 0, frame.rect.width(), style.title_height);
1812
1813     positionButtons();
1814     XMapSubwindows(blackbox->XDisplay(), frame.title);
1815     XMapWindow(blackbox->XDisplay(), frame.title);
1816   } else if (frame.title) {
1817     destroyTitlebar();
1818   }
1819
1820   if (client.decorations & WindowDecorationHandle) {
1821     if (frame.handle == None) createHandle();
1822
1823     // use client.rect here so the value is correct even if shaded
1824     XMoveResizeWindow(blackbox->XDisplay(), frame.handle,
1825                       0, client.rect.height() + frame.margin.top,
1826                       frame.rect.width(), style.handle_height);
1827
1828     if (client.decorations & WindowDecorationGrip) {
1829       if (frame.left_grip == None || frame.right_grip == None) createGrips();
1830
1831       XMoveResizeWindow(blackbox->XDisplay(), frame.left_grip, 0, 0,
1832                         style.grip_width, style.handle_height);
1833
1834       const int nx = frame.rect.width() - style.grip_width;
1835       XMoveResizeWindow(blackbox->XDisplay(), frame.right_grip, nx, 0,
1836                         style.grip_width, style.handle_height);
1837
1838       XMapSubwindows(blackbox->XDisplay(), frame.handle);
1839     } else {
1840       destroyGrips();
1841     }
1842
1843     XMapWindow(blackbox->XDisplay(), frame.handle);
1844   } else if (frame.handle) {
1845     destroyHandle();
1846   }
1847 }
1848
1849
1850 /*
1851  * This function is responsible for updating both the client and the
1852  * frame rectangles.  According to the ICCCM a client message is not
1853  * sent for a resize, only a move.
1854  */
1855 void BlackboxWindow::configure(int dx, int dy,
1856                                unsigned int dw, unsigned int dh) {
1857   bool send_event = ((frame.rect.x() != dx || frame.rect.y() != dy) &&
1858                      ! client.state.moving);
1859
1860   if (dw != frame.rect.width() || dh != frame.rect.height()) {
1861     frame.rect.setRect(dx, dy, dw, dh);
1862
1863     if (frame.rect.right() <= 0 || frame.rect.bottom() <= 0)
1864       frame.rect.setPos(0, 0);
1865
1866     client.rect.setCoords(frame.rect.left() + frame.margin.left,
1867                           frame.rect.top() + frame.margin.top,
1868                           frame.rect.right() - frame.margin.right,
1869                           frame.rect.bottom() - frame.margin.bottom);
1870
1871 #ifdef SHAPE
1872     if (client.state.shaped)
1873       configureShape();
1874 #endif // SHAPE
1875
1876     XMoveResizeWindow(blackbox->XDisplay(), frame.window,
1877                       frame.rect.x(), frame.rect.y(),
1878                       frame.rect.width(), frame.rect.height());
1879
1880     positionWindows();
1881     decorate();
1882     redrawWindowFrame();
1883   } else {
1884     frame.rect.setPos(dx, dy);
1885
1886     XMoveWindow(blackbox->XDisplay(), frame.window,
1887                 frame.rect.x(), frame.rect.y());
1888     /*
1889       we may have been called just after an opaque window move, so
1890       even though the old coords match the new ones no ConfigureNotify
1891       has been sent yet.  There are likely other times when this will
1892       be relevant as well.
1893     */
1894     if (! client.state.moving) send_event = True;
1895   }
1896
1897   if (send_event) {
1898     // if moving, the update and event will occur when the move finishes
1899     client.rect.setPos(frame.rect.left() + frame.margin.left,
1900                        frame.rect.top() + frame.margin.top);
1901
1902     XEvent event;
1903     event.type = ConfigureNotify;
1904
1905     event.xconfigure.display = blackbox->XDisplay();
1906     event.xconfigure.event = client.window;
1907     event.xconfigure.window = client.window;
1908     event.xconfigure.x = client.rect.x();
1909     event.xconfigure.y = client.rect.y();
1910     event.xconfigure.width = client.rect.width();
1911     event.xconfigure.height = client.rect.height();
1912     event.xconfigure.border_width = client.old_bw;
1913     event.xconfigure.above = frame.window;
1914     event.xconfigure.override_redirect = False;
1915
1916     XSendEvent(blackbox->XDisplay(), client.window, False,
1917                StructureNotifyMask, &event);
1918   }
1919 }
1920
1921
1922 #ifdef SHAPE
1923 void BlackboxWindow::configureShape(void) {
1924   XShapeCombineShape(blackbox->XDisplay(), frame.window, ShapeBounding,
1925                      frame.margin.left, frame.margin.top,
1926                      client.window, ShapeBounding, ShapeSet);
1927
1928   int num = 0;
1929   XRectangle xrect[2];
1930
1931   const WindowStyle &style = _screen->resource().windowStyle();
1932   if (client.decorations & WindowDecorationTitlebar) {
1933     xrect[0].x = xrect[0].y = 0;
1934     xrect[0].width = frame.rect.width();
1935     xrect[0].height = style.title_height;
1936     ++num;
1937   }
1938
1939   if (client.decorations & WindowDecorationHandle) {
1940     xrect[1].x = 0;
1941     xrect[1].y = client.rect.height() + frame.margin.top;
1942     xrect[1].width = frame.rect.width();
1943     xrect[1].height = style.handle_height;
1944     ++num;
1945   }
1946
1947   XShapeCombineRectangles(blackbox->XDisplay(), frame.window,
1948                           ShapeBounding, 0, 0, xrect, num,
1949                           ShapeUnion, Unsorted);
1950 }
1951 #endif // SHAPE
1952
1953
1954 void BlackboxWindow::addTransient(BlackboxWindow *win)
1955 { client.transientList.push_front(win); }
1956
1957
1958 void BlackboxWindow::removeTransient(BlackboxWindow *win)
1959 { client.transientList.remove(win); }
1960
1961
1962 BlackboxWindow *BlackboxWindow::findTransientFor(void) const {
1963   BlackboxWindow *win = 0;
1964   if (isTransient()) {
1965     win = blackbox->findWindow(client.transient_for);
1966     if (win && win->_screen != _screen)
1967       win = 0;
1968   }
1969   return win;
1970 }
1971
1972
1973 /*
1974   walk up to either 1) a non-transient window 2) a group transient,
1975   watching out for a circular chain
1976
1977   this function returns zero for non-transient windows
1978 */
1979 BlackboxWindow *BlackboxWindow::findNonTransientParent(void) const {
1980   BlackboxWindowList seen;
1981   seen.push_back(const_cast<BlackboxWindow *>(this));
1982
1983   BlackboxWindow *w = findTransientFor();
1984   if (!w)
1985     return 0;
1986
1987   while (w->isTransient() && !w->isGroupTransient()) {
1988     seen.push_back(w);
1989     BlackboxWindow * const tmp = w->findTransientFor();
1990     if (!tmp)
1991       break;
1992     if (std::find(seen.begin(), seen.end(), tmp) != seen.end()) {
1993       // circular transient chain
1994       break;
1995     }
1996     w = tmp;
1997   }
1998   return w;
1999 }
2000
2001
2002 /*
2003   Returns a list of all transients.  This is recursive, so it returns
2004   all transients of transients as well.
2005 */
2006 BlackboxWindowList BlackboxWindow::buildFullTransientList(void) const {
2007   BlackboxWindowList all = client.transientList;
2008   BlackboxWindowList::const_iterator it = client.transientList.begin(),
2009                                     end = client.transientList.end();
2010   for (; it != end; ++it) {
2011     BlackboxWindowList x = (*it)->buildFullTransientList();
2012     all.splice(all.end(), x);
2013   }
2014   return all;
2015 }
2016
2017
2018 BWindowGroup *BlackboxWindow::findWindowGroup(void) const {
2019   BWindowGroup *group = 0;
2020   if (client.wmhints.window_group)
2021     group = blackbox->findWindowGroup(client.wmhints.window_group);
2022   return group;
2023 }
2024
2025
2026 void BlackboxWindow::setWorkspace(unsigned int new_workspace) {
2027   client.ewmh.workspace = new_workspace;
2028   blackbox->ewmh().setWMDesktop(client.window, client.ewmh.workspace);
2029 }
2030
2031
2032 void BlackboxWindow::changeWorkspace(unsigned int new_workspace,
2033                                      ChangeWorkspaceOption how) {
2034   if (client.ewmh.workspace == new_workspace)
2035     return;
2036
2037   if (isTransient()) {
2038     BlackboxWindow *win = findTransientFor();
2039     if (win) {
2040       if (win->workspace() != new_workspace) {
2041         win->changeWorkspace(new_workspace, how);
2042         return;
2043       }
2044     }
2045   } else {
2046     assert(hasWindowFunction(WindowFunctionChangeWorkspace));
2047   }
2048
2049   Workspace *ws;
2050   if (workspace() != bt::BSENTINEL) {
2051     ws = _screen->findWorkspace(workspace());
2052     assert(ws != 0);
2053     ws->removeWindow(this);
2054   }
2055
2056   if (new_workspace != bt::BSENTINEL) {
2057     ws = _screen->findWorkspace(new_workspace);
2058     assert(ws != 0);
2059     ws->addWindow(this);
2060   }
2061
2062   switch (how) {
2063   case StayOnCurrentWorkspace:
2064     if (isVisible() && workspace() != bt::BSENTINEL
2065         && workspace() != _screen->currentWorkspace()) {
2066       hide();
2067     } else if (!isVisible()
2068                && (workspace() == bt::BSENTINEL
2069                    || workspace() == _screen->currentWorkspace())) {
2070       show();
2071     }
2072     break;
2073
2074   case SwitchToNewWorkspace:
2075     /*
2076       we will change to the new workspace soon, so force this window
2077       to be visible
2078     */
2079     show();
2080     break;
2081   }
2082
2083   // change workspace on all transients
2084   if (!client.transientList.empty()) {
2085     BlackboxWindowList::iterator it = client.transientList.begin(),
2086                                 end = client.transientList.end();
2087     for (; it != end; ++it)
2088       (*it)->changeWorkspace(new_workspace, how);
2089   }
2090 }
2091
2092
2093 void BlackboxWindow::changeLayer(StackingList::Layer new_layer) {
2094   if (layer() == new_layer)
2095     return;
2096
2097   bool restack = false;
2098   if (isTransient()) {
2099     BlackboxWindow *win = findTransientFor();
2100     if (win) {
2101       if (win->layer() != new_layer) {
2102         win->changeLayer(new_layer);
2103         return;
2104       } else {
2105         restack = true;
2106       }
2107     }
2108   } else {
2109     assert(hasWindowFunction(WindowFunctionChangeLayer));
2110     restack = true;
2111   }
2112
2113   _screen->stackingList().changeLayer(this, new_layer);
2114
2115   if (!client.transientList.empty()) {
2116     BlackboxWindowList::iterator it = client.transientList.begin();
2117     const BlackboxWindowList::iterator end = client.transientList.end();
2118     for (; it != end; ++it)
2119       (*it)->changeLayer(new_layer);
2120   }
2121
2122   if (restack)
2123     _screen->restackWindows();
2124 }
2125
2126
2127 bool BlackboxWindow::setInputFocus(void) {
2128   if (!isVisible())
2129     return false;
2130   if (client.state.focused)
2131     return true;
2132
2133   switch (windowType()) {
2134   case WindowTypeDock:
2135     /*
2136       Many docks have auto-hide features similar to the toolbar and
2137       slit... we don't want these things to be moved to the center of
2138       the screen when switching to an empty workspace.
2139     */
2140     break;
2141
2142   default:
2143     {  const bt::Rect &scr = _screen->screenInfo().rect();
2144       if (!frame.rect.intersects(scr)) {
2145         // client is outside the screen, move it to the center
2146         configure(scr.x() + (scr.width() - frame.rect.width()) / 2,
2147                   scr.y() + (scr.height() - frame.rect.height()) / 2,
2148                   frame.rect.width(), frame.rect.height());
2149       }
2150       break;
2151     }
2152   }
2153
2154   /*
2155     pass focus to any modal transients, giving modal group transients
2156     higher priority
2157   */
2158   BWindowGroup *group = findWindowGroup();
2159   if (group && !group->transients().empty()) {
2160     BlackboxWindowList::const_iterator it = group->transients().begin(),
2161                                       end = group->transients().end();
2162     for (; it != end; ++it) {
2163       BlackboxWindow * const tmp = *it;
2164       if (!tmp->isVisible() || !tmp->isModal())
2165         continue;
2166       if (tmp == this) {
2167         // we are the newest modal group transient
2168         break;
2169       }
2170       if (isTransient()) {
2171         if (tmp == findNonTransientParent()) {
2172           // we are a transient of the modal group transient
2173           break;
2174         }
2175       }
2176       return tmp->setInputFocus();
2177     }
2178   }
2179
2180   if (!client.transientList.empty()) {
2181     BlackboxWindowList::const_iterator it = client.transientList.begin(),
2182                                       end = client.transientList.end();
2183     for (; it != end; ++it) {
2184       BlackboxWindow * const tmp = *it;
2185       if (tmp->isVisible() && tmp->isModal())
2186         return tmp->setInputFocus();
2187     }
2188   }
2189
2190   switch (windowType()) {
2191   case WindowTypeDock:
2192     return false;
2193   default:
2194     break;
2195   }
2196
2197   XSetInputFocus(blackbox->XDisplay(), client.window,
2198                  RevertToPointerRoot, blackbox->XTime());
2199
2200   if (client.wmprotocols.wm_take_focus) {
2201     XEvent ce;
2202     ce.xclient.type = ClientMessage;
2203     ce.xclient.message_type = blackbox->wmProtocolsAtom();
2204     ce.xclient.display = blackbox->XDisplay();
2205     ce.xclient.window = client.window;
2206     ce.xclient.format = 32;
2207     ce.xclient.data.l[0] = blackbox->wmTakeFocusAtom();
2208     ce.xclient.data.l[1] = blackbox->XTime();
2209     ce.xclient.data.l[2] = 0l;
2210     ce.xclient.data.l[3] = 0l;
2211     ce.xclient.data.l[4] = 0l;
2212     XSendEvent(blackbox->XDisplay(), client.window, False, NoEventMask, &ce);
2213   }
2214
2215   return true;
2216 }
2217
2218
2219 void BlackboxWindow::show(void) {
2220   if (client.state.visible)
2221     return;
2222
2223   if (client.state.iconic)
2224     _screen->removeIcon(this);
2225
2226   client.state.iconic = false;
2227   client.state.visible = true;
2228   setState(isShaded() ? IconicState : NormalState);
2229
2230   XMapWindow(blackbox->XDisplay(), client.window);
2231   XMapSubwindows(blackbox->XDisplay(), frame.window);
2232   XMapWindow(blackbox->XDisplay(), frame.window);
2233
2234   if (!client.transientList.empty()) {
2235     BlackboxWindowList::iterator it = client.transientList.begin(),
2236                                 end = client.transientList.end();
2237     for (; it != end; ++it)
2238       (*it)->show();
2239   }
2240
2241 #ifdef DEBUG
2242   int real_x, real_y;
2243   Window child;
2244   XTranslateCoordinates(blackbox->XDisplay(), client.window,
2245                         _screen->screenInfo().rootWindow(),
2246                         0, 0, &real_x, &real_y, &child);
2247   fprintf(stderr, "%s -- assumed: (%d, %d), real: (%d, %d)\n", title().c_str(),
2248           client.rect.left(), client.rect.top(), real_x, real_y);
2249   assert(client.rect.left() == real_x && client.rect.top() == real_y);
2250 #endif
2251 }
2252
2253
2254 void BlackboxWindow::hide(void) {
2255   if (!client.state.visible)
2256     return;
2257
2258   client.state.visible = false;
2259   setState(client.state.iconic ? IconicState : client.current_state);
2260
2261   XUnmapWindow(blackbox->XDisplay(), frame.window);
2262
2263   /*
2264    * we don't want this XUnmapWindow call to generate an UnmapNotify
2265    * event, so we need to clear the event mask on client.window for a
2266    * split second.  HOWEVER, since X11 is asynchronous, the window
2267    * could be destroyed in that split second, leaving us with a ghost
2268    * window... so, we need to do this while the X server is grabbed
2269    */
2270   blackbox->XGrabServer();
2271   XSelectInput(blackbox->XDisplay(), client.window,
2272                client_window_event_mask & ~StructureNotifyMask);
2273   XUnmapWindow(blackbox->XDisplay(), client.window);
2274   XSelectInput(blackbox->XDisplay(), client.window, client_window_event_mask);
2275   blackbox->XUngrabServer();
2276 }
2277
2278
2279 void BlackboxWindow::close(void) {
2280   assert(hasWindowFunction(WindowFunctionClose));
2281
2282   XEvent ce;
2283   ce.xclient.type = ClientMessage;
2284   ce.xclient.message_type = blackbox->wmProtocolsAtom();
2285   ce.xclient.display = blackbox->XDisplay();
2286   ce.xclient.window = client.window;
2287   ce.xclient.format = 32;
2288   ce.xclient.data.l[0] = blackbox->wmDeleteWindowAtom();
2289   ce.xclient.data.l[1] = blackbox->XTime();
2290   ce.xclient.data.l[2] = 0l;
2291   ce.xclient.data.l[3] = 0l;
2292   ce.xclient.data.l[4] = 0l;
2293   XSendEvent(blackbox->XDisplay(), client.window, False, NoEventMask, &ce);
2294 }
2295
2296
2297 void BlackboxWindow::activate(void) {
2298   if (workspace() != bt::BSENTINEL
2299       && workspace() != _screen->currentWorkspace())
2300     _screen->setCurrentWorkspace(workspace());
2301   if (client.state.iconic)
2302     show();
2303   if (client.ewmh.shaded)
2304     setShaded(false);
2305   if (setInputFocus())
2306     _screen->raiseWindow(this);
2307 }
2308
2309
2310 void BlackboxWindow::iconify(void) {
2311   if (client.state.iconic)
2312     return;
2313
2314   if (isTransient()) {
2315     BlackboxWindow *win = findTransientFor();
2316     if (win) {
2317       if (!win->isIconic()) {
2318         win->iconify();
2319         return;
2320       }
2321     }
2322   } else {
2323     assert(hasWindowFunction(WindowFunctionIconify));
2324   }
2325
2326   _screen->addIcon(this);
2327
2328   client.state.iconic = true;
2329   hide();
2330
2331   // iconify all transients
2332   if (!client.transientList.empty()) {
2333     BlackboxWindowList::iterator it = client.transientList.begin(),
2334                                 end = client.transientList.end();
2335     for (; it != end; ++it)
2336       (*it)->iconify();
2337   }
2338 }
2339
2340
2341 void BlackboxWindow::maximize(unsigned int button) {
2342   assert(hasWindowFunction(WindowFunctionMaximize));
2343
2344   // any maximize operation always unshades
2345   client.ewmh.shaded = false;
2346   frame.rect.setHeight(client.rect.height() + frame.margin.top
2347                        + frame.margin.bottom);
2348
2349   if (isMaximized()) {
2350     // restore from maximized
2351     client.ewmh.maxh = client.ewmh.maxv = false;
2352
2353     if (!isFullScreen()) {
2354       /*
2355         when a resize is begun, maximize(0) is called to clear any
2356         maximization flags currently set.  Otherwise it still thinks
2357         it is maximized.  so we do not need to call configure()
2358         because resizing will handle it
2359       */
2360       if (! client.state.resizing) {
2361         bt::Rect r = ::applyGravity(client.premax,
2362                                     frame.margin,
2363                                     client.wmnormal.win_gravity);
2364         r = ::constrain(r, frame.margin, client.wmnormal, TopLeft);
2365         // trick configure into working
2366         frame.rect = bt::Rect();
2367         configure(r);
2368       }
2369
2370       redrawAllButtons(); // in case it is not called in configure()
2371     }
2372
2373     updateEWMHState();
2374     updateEWMHAllowedActions();
2375     return;
2376   }
2377
2378   switch (button) {
2379   case 1:
2380     client.ewmh.maxh = true;
2381     client.ewmh.maxv = true;
2382     break;
2383
2384   case 2:
2385     client.ewmh.maxh = false;
2386     client.ewmh.maxv = true;
2387     break;
2388
2389   case 3:
2390     client.ewmh.maxh = true;
2391     client.ewmh.maxv = false;
2392     break;
2393
2394   default:
2395     assert(0);
2396     break;
2397   }
2398
2399   if (!isFullScreen()) {
2400     // go go gadget-maximize!
2401     bt::Rect r = _screen->availableArea();
2402
2403     if (!client.ewmh.maxh) {
2404       r.setX(frame.rect.x());
2405       r.setWidth(frame.rect.width());
2406     }
2407     if (!client.ewmh.maxv) {
2408       r.setY(frame.rect.y());
2409       r.setHeight(frame.rect.height());
2410     }
2411
2412     // store the current frame geometry, so that we can restore it later
2413     client.premax = ::restoreGravity(frame.rect,
2414                                      frame.margin,
2415                                      client.wmnormal.win_gravity);
2416
2417     r = ::constrain(r, frame.margin, client.wmnormal, TopLeft);
2418     // trick configure into working
2419     frame.rect = bt::Rect();
2420     configure(r);
2421   }
2422
2423   updateEWMHState();
2424   updateEWMHAllowedActions();
2425 }
2426
2427
2428 /*
2429   re-maximizes the window to take into account availableArea changes.
2430
2431   note that unlike maximize(), the shaded state is preserved.
2432 */
2433 void BlackboxWindow::remaximize(void) {
2434   if (isShaded()) {
2435     bt::Rect r = _screen->availableArea();
2436
2437     if (!client.ewmh.maxh) {
2438       r.setX(frame.rect.x());
2439       r.setWidth(frame.rect.width());
2440     }
2441     if (!client.ewmh.maxv) {
2442       r.setY(frame.rect.y());
2443       r.setHeight(frame.rect.height());
2444     }
2445
2446     frame.rect = ::constrain(r, frame.margin, client.wmnormal, TopLeft);
2447
2448     positionWindows();
2449     decorate();
2450
2451     // set the frame rect to the shaded size
2452     const WindowStyle &style = _screen->resource().windowStyle();
2453     frame.rect.setHeight(style.title_height);
2454     XResizeWindow(blackbox->XDisplay(), frame.window,
2455                   frame.rect.width(), frame.rect.height());
2456     return;
2457   }
2458
2459   unsigned int button = 0u;
2460   if (client.ewmh.maxv) {
2461     button = (client.ewmh.maxh) ? 1u : 2u;
2462   } else if (client.ewmh.maxh) {
2463     button = (client.ewmh.maxv) ? 1u : 3u;
2464   }
2465
2466   // trick maximize() into working
2467   client.ewmh.maxh = client.ewmh.maxv = false;
2468   const bt::Rect tmp = client.premax;
2469   maximize(button);
2470   client.premax = tmp;
2471 }
2472
2473
2474 void BlackboxWindow::setShaded(bool shaded) {
2475   assert(hasWindowFunction(WindowFunctionShade));
2476
2477   if (client.ewmh.shaded == shaded)
2478     return;
2479
2480   client.ewmh.shaded = shaded;
2481   if (!isShaded()) {
2482     if (isMaximized()) {
2483       remaximize();
2484     } else {
2485       // set the frame rect to the normal size
2486       frame.rect.setHeight(client.rect.height() + frame.margin.top +
2487                            frame.margin.bottom);
2488
2489       XResizeWindow(blackbox->XDisplay(), frame.window,
2490                     frame.rect.width(), frame.rect.height());
2491     }
2492
2493     setState(NormalState);
2494   } else {
2495     // set the frame rect to the shaded size
2496     const WindowStyle &style = _screen->resource().windowStyle();
2497     frame.rect.setHeight(style.title_height);
2498
2499     XResizeWindow(blackbox->XDisplay(), frame.window,
2500                   frame.rect.width(), frame.rect.height());
2501
2502     setState(IconicState);
2503   }
2504 }
2505
2506
2507 void BlackboxWindow::setFullScreen(bool b) {
2508   assert(hasWindowFunction(WindowFunctionFullScreen));
2509
2510   if (client.ewmh.fullscreen == b)
2511     return;
2512
2513   // any fullscreen operation always unshades
2514   client.ewmh.shaded = false;
2515   frame.rect.setHeight(client.rect.height() + frame.margin.top
2516                        + frame.margin.bottom);
2517
2518   bool refocus = isFocused();
2519   client.ewmh.fullscreen = b;
2520   if (isFullScreen()) {
2521     // go go gadget-fullscreen!
2522     if (!isMaximized())
2523       client.premax = ::restoreGravity(frame.rect,
2524                                        frame.margin,
2525                                        client.wmnormal.win_gravity);
2526
2527     // modify decorations, functions and frame margin
2528     client.decorations = NoWindowDecorations;
2529     client.functions &= ~(WindowFunctionMove |
2530                           WindowFunctionResize |
2531                           WindowFunctionShade);
2532     const WindowStyle &style = _screen->resource().windowStyle();
2533     frame.margin = ::update_margin(client.decorations, style);
2534
2535     /*
2536      * Note: we don't call ::constrain() here, because many
2537      * applications are broken in this respect.  Some specify a
2538      * max-size or aspect-ratio that simply doesn't cover the entire
2539      * screen.  Let's try to be smarter than such applications and
2540      * simply cover the entire screen.
2541      */
2542
2543     // trick configure() into working
2544     frame.rect = bt::Rect();
2545     configure(_screen->screenInfo().rect());
2546
2547     if (isVisible())
2548       changeLayer(StackingList::LayerFullScreen);
2549
2550     updateEWMHState();
2551     updateEWMHAllowedActions();
2552   } else {
2553     // restore from fullscreen
2554     ::update_decorations(client.decorations,
2555                          client.functions,
2556                          isTransient(),
2557                          client.ewmh,
2558                          client.motif,
2559                          client.wmnormal,
2560                          client.wmprotocols);
2561     const WindowStyle &style = _screen->resource().windowStyle();
2562     frame.margin = ::update_margin(client.decorations, style);
2563
2564     if (isVisible())
2565       changeLayer(StackingList::LayerNormal);
2566
2567     if (isMaximized()) {
2568       remaximize();
2569     } else {
2570       bt::Rect r = ::applyGravity(client.premax,
2571                                   frame.margin,
2572                                   client.wmnormal.win_gravity);
2573       r = ::constrain(r, frame.margin, client.wmnormal, TopLeft);
2574
2575       // trick configure into working
2576       frame.rect = bt::Rect();
2577       configure(r);
2578
2579       updateEWMHState();
2580       updateEWMHAllowedActions();
2581     }
2582   }
2583
2584   ungrabButtons();
2585   grabButtons();
2586
2587   if (refocus)
2588     (void) setInputFocus();
2589 }
2590
2591
2592 void BlackboxWindow::redrawWindowFrame(void) const {
2593   if (client.decorations & WindowDecorationTitlebar) {
2594     redrawTitle();
2595     redrawLabel();
2596     redrawAllButtons();
2597   }
2598
2599   if (client.decorations & WindowDecorationBorder) {
2600     const WindowStyle &style = _screen->resource().windowStyle();
2601     const bt::Color &c = (isFocused()
2602                           ? style.focus.frame_border
2603                           : style.unfocus.frame_border);
2604     XSetWindowBorder(blackbox->XDisplay(), frame.plate,
2605                      c.pixel(_screen->screenNumber()));
2606   }
2607
2608   if (client.decorations & WindowDecorationHandle) {
2609     redrawHandle();
2610
2611     if (client.decorations & WindowDecorationGrip)
2612       redrawGrips();
2613   }
2614 }
2615
2616
2617 void BlackboxWindow::setFocused(bool focused) {
2618   if (focused == client.state.focused)
2619     return;
2620
2621   client.state.focused = isVisible() ? focused : false;
2622
2623   if (isVisible()) {
2624     redrawWindowFrame();
2625
2626     if (client.state.focused) {
2627       XInstallColormap(blackbox->XDisplay(), client.colormap);
2628     } else {
2629       if (client.ewmh.fullscreen && layer() != StackingList::LayerBelow)
2630         changeLayer(StackingList::LayerBelow);
2631     }
2632   }
2633 }
2634
2635
2636 void BlackboxWindow::setState(unsigned long new_state) {
2637   client.current_state = new_state;
2638
2639   unsigned long state[2];
2640   state[0] = client.current_state;
2641   state[1] = None;
2642   XChangeProperty(blackbox->XDisplay(), client.window,
2643                   blackbox->wmStateAtom(), blackbox->wmStateAtom(), 32,
2644                   PropModeReplace, (unsigned char *) state, 2);
2645
2646   updateEWMHState();
2647   updateEWMHAllowedActions();
2648 }
2649
2650
2651 void BlackboxWindow::updateEWMHState() {
2652   const bt::EWMH& ewmh = blackbox->ewmh();
2653
2654   // set _NET_WM_STATE
2655   bt::EWMH::AtomList atoms;
2656   if (isModal())
2657     atoms.push_back(ewmh.wmStateModal());
2658   if (isShaded())
2659     atoms.push_back(ewmh.wmStateShaded());
2660   if (isIconic())
2661     atoms.push_back(ewmh.wmStateHidden());
2662   if (isFullScreen())
2663     atoms.push_back(ewmh.wmStateFullscreen());
2664   if (client.ewmh.maxh)
2665     atoms.push_back(ewmh.wmStateMaximizedHorz());
2666   if (client.ewmh.maxv)
2667     atoms.push_back(ewmh.wmStateMaximizedVert());
2668   if (client.ewmh.skip_taskbar)
2669     atoms.push_back(ewmh.wmStateSkipTaskbar());
2670   if (client.ewmh.skip_pager)
2671     atoms.push_back(ewmh.wmStateSkipPager());
2672
2673   switch (layer()) {
2674   case StackingList::LayerAbove:
2675     atoms.push_back(ewmh.wmStateAbove());
2676     break;
2677   case StackingList::LayerBelow:
2678     atoms.push_back(ewmh.wmStateBelow());
2679     break;
2680   default:
2681     break;
2682   }
2683
2684   if (atoms.empty())
2685     ewmh.removeProperty(client.window, ewmh.wmState());
2686   else
2687     ewmh.setWMState(client.window, atoms);
2688 }
2689
2690
2691 void BlackboxWindow::updateEWMHAllowedActions() {
2692   const bt::EWMH& ewmh = blackbox->ewmh();
2693
2694   // set _NET_WM_ALLOWED_ACTIONS
2695   bt::EWMH::AtomList atoms;
2696   if (! client.state.iconic) {
2697     if (hasWindowFunction(WindowFunctionChangeWorkspace))
2698       atoms.push_back(ewmh.wmActionChangeDesktop());
2699
2700     if (hasWindowFunction(WindowFunctionIconify))
2701       atoms.push_back(ewmh.wmActionMinimize());
2702
2703     if (hasWindowFunction(WindowFunctionShade))
2704       atoms.push_back(ewmh.wmActionShade());
2705
2706     if (hasWindowFunction(WindowFunctionMove))
2707       atoms.push_back(ewmh.wmActionMove());
2708
2709     if (hasWindowFunction(WindowFunctionResize))
2710       atoms.push_back(ewmh.wmActionResize());
2711
2712     if (hasWindowFunction(WindowFunctionMaximize)) {
2713       atoms.push_back(ewmh.wmActionMaximizeHorz());
2714       atoms.push_back(ewmh.wmActionMaximizeVert());
2715     }
2716
2717     atoms.push_back(ewmh.wmActionFullscreen());
2718   }
2719
2720   if (hasWindowFunction(WindowFunctionClose))
2721     atoms.push_back(ewmh.wmActionClose());
2722
2723   if (atoms.empty())
2724     ewmh.removeProperty(client.window, ewmh.wmAllowedActions());
2725   else
2726     ewmh.setWMAllowedActions(client.window, atoms);
2727 }
2728
2729
2730 void BlackboxWindow::redrawTitle(void) const {
2731   const WindowStyle &style = _screen->resource().windowStyle();
2732   const bt::Rect u(0, 0, frame.rect.width(), style.title_height);
2733   bt::drawTexture(_screen->screenNumber(),
2734                   (client.state.focused
2735                    ? style.focus.title
2736                    : style.unfocus.title),
2737                   frame.title, u, u,
2738                   (client.state.focused
2739                    ? frame.ftitle
2740                    : frame.utitle));
2741 }
2742
2743
2744 void BlackboxWindow::redrawLabel(void) const {
2745   const WindowStyle &style = _screen->resource().windowStyle();
2746   bt::Rect u(0, 0, frame.label_w, style.label_height);
2747   Pixmap p = (client.state.focused ? frame.flabel : frame.ulabel);
2748   if (p == ParentRelative) {
2749     const bt::Texture &texture =
2750       (isFocused() ? style.focus.title : style.unfocus.title);
2751     int offset = texture.borderWidth();
2752     if (client.decorations & WindowDecorationIconify)
2753       offset += style.button_width + style.title_margin;
2754
2755     const bt::Rect t(-(style.title_margin + offset),
2756                      -(style.title_margin + texture.borderWidth()),
2757                      frame.rect.width(), style.title_height);
2758     bt::drawTexture(_screen->screenNumber(), texture, frame.label, t, u,
2759                     (client.state.focused ? frame.ftitle : frame.utitle));
2760   } else {
2761     bt::drawTexture(_screen->screenNumber(),
2762                     (client.state.focused
2763                      ? style.focus.label
2764                      : style.unfocus.label),
2765                     frame.label, u, u, p);
2766   }
2767
2768   const bt::Pen pen(_screen->screenNumber(),
2769                     ((client.state.focused)
2770                      ? style.focus.text
2771                      : style.unfocus.text));
2772   u.setCoords(u.left()  + style.label_margin,
2773               u.top() + style.label_margin,
2774               u.right() - style.label_margin,
2775               u.bottom() - style.label_margin);
2776   bt::drawText(style.font, pen, frame.label, u,
2777                style.alignment, client.visible_title);
2778 }
2779
2780
2781 void BlackboxWindow::redrawAllButtons(void) const {
2782   if (frame.iconify_button) redrawIconifyButton();
2783   if (frame.maximize_button) redrawMaximizeButton();
2784   if (frame.close_button) redrawCloseButton();
2785 }
2786
2787
2788 void BlackboxWindow::redrawIconifyButton(bool pressed) const {
2789   const WindowStyle &style = _screen->resource().windowStyle();
2790   const bt::Rect u(0, 0, style.button_width, style.button_width);
2791   Pixmap p = (pressed ? frame.pbutton :
2792               (client.state.focused ? frame.fbutton : frame.ubutton));
2793   if (p == ParentRelative) {
2794     const bt::Texture &texture =
2795       (isFocused() ? style.focus.title : style.unfocus.title);
2796     const bt::Rect t(-(style.title_margin + texture.borderWidth()),
2797                      -(style.title_margin + texture.borderWidth()),
2798                      frame.rect.width(), style.title_height);
2799     bt::drawTexture(_screen->screenNumber(), texture, frame.iconify_button,
2800                     t, u, (client.state.focused
2801                            ? frame.ftitle
2802                            : frame.utitle));
2803   } else {
2804     bt::drawTexture(_screen->screenNumber(),
2805                     (pressed ? style.pressed :
2806                      (client.state.focused ? style.focus.button :
2807                       style.unfocus.button)),
2808                     frame.iconify_button, u, u, p);
2809   }
2810
2811   const bt::Pen pen(_screen->screenNumber(),
2812                     (client.state.focused
2813                      ? style.focus.foreground
2814                      : style.unfocus.foreground));
2815   bt::drawBitmap(style.iconify, pen, frame.iconify_button, u);
2816 }
2817
2818
2819 void BlackboxWindow::redrawMaximizeButton(bool pressed) const {
2820   const WindowStyle &style = _screen->resource().windowStyle();
2821   const bt::Rect u(0, 0, style.button_width, style.button_width);
2822   Pixmap p = (pressed ? frame.pbutton :
2823               (client.state.focused ? frame.fbutton : frame.ubutton));
2824   if (p == ParentRelative) {
2825     const bt::Texture &texture =
2826       (isFocused() ? style.focus.title : style.unfocus.title);
2827     int button_w = style.button_width
2828                    + style.title_margin + texture.borderWidth();
2829     if (client.decorations & WindowDecorationClose)
2830       button_w *= 2;
2831     const bt::Rect t(-(frame.rect.width() - button_w),
2832                      -(style.title_margin + texture.borderWidth()),
2833                      frame.rect.width(), style.title_height);
2834     bt::drawTexture(_screen->screenNumber(), texture, frame.maximize_button,
2835                     t, u, (client.state.focused
2836                            ? frame.ftitle
2837                            : frame.utitle));
2838   } else {
2839     bt::drawTexture(_screen->screenNumber(),
2840                     (pressed ? style.pressed :
2841                      (client.state.focused ? style.focus.button :
2842                       style.unfocus.button)),
2843                     frame.maximize_button, u, u, p);
2844   }
2845
2846   const bt::Pen pen(_screen->screenNumber(),
2847                     (client.state.focused
2848                      ? style.focus.foreground
2849                      : style.unfocus.foreground));
2850   bt::drawBitmap(isMaximized() ? style.restore : style.maximize,
2851                  pen, frame.maximize_button, u);
2852 }
2853
2854
2855 void BlackboxWindow::redrawCloseButton(bool pressed) const {
2856   const WindowStyle &style = _screen->resource().windowStyle();
2857   const bt::Rect u(0, 0, style.button_width, style.button_width);
2858   Pixmap p = (pressed ? frame.pbutton :
2859               (client.state.focused ? frame.fbutton : frame.ubutton));
2860   if (p == ParentRelative) {
2861     const bt::Texture &texture =
2862       (isFocused() ? style.focus.title : style.unfocus.title);
2863     const int button_w = style.button_width +
2864                          style.title_margin +
2865                          texture.borderWidth();
2866     const bt::Rect t(-(frame.rect.width() - button_w),
2867                      -(style.title_margin + texture.borderWidth()),
2868                      frame.rect.width(), style.title_height);
2869     bt::drawTexture(_screen->screenNumber(),texture, frame.close_button, t, u,
2870                     (client.state.focused ? frame.ftitle : frame.utitle));
2871   } else {
2872     bt::drawTexture(_screen->screenNumber(),
2873                     (pressed ? style.pressed :
2874                      (client.state.focused ? style.focus.button :
2875                       style.unfocus.button)),
2876                     frame.close_button, u, u, p);
2877   }
2878
2879   const bt::Pen pen(_screen->screenNumber(),
2880                     (client.state.focused
2881                      ? style.focus.foreground
2882                      : style.unfocus.foreground));
2883   bt::drawBitmap(style.close, pen, frame.close_button, u);
2884 }
2885
2886
2887 void BlackboxWindow::redrawHandle(void) const {
2888   const WindowStyle &style = _screen->resource().windowStyle();
2889   const bt::Rect u(0, 0, frame.rect.width(), style.handle_height);
2890   bt::drawTexture(_screen->screenNumber(),
2891                   (client.state.focused ? style.focus.handle :
2892                                           style.unfocus.handle),
2893                   frame.handle, u, u,
2894                   (client.state.focused ? frame.fhandle : frame.uhandle));
2895 }
2896
2897
2898 void BlackboxWindow::redrawGrips(void) const {
2899   const WindowStyle &style = _screen->resource().windowStyle();
2900   const bt::Rect u(0, 0, style.grip_width, style.handle_height);
2901   Pixmap p = (client.state.focused ? frame.fgrip : frame.ugrip);
2902   if (p == ParentRelative) {
2903     bt::Rect t(0, 0, frame.rect.width(), style.handle_height);
2904     bt::drawTexture(_screen->screenNumber(),
2905                     (client.state.focused ? style.focus.handle :
2906                                             style.unfocus.handle),
2907                     frame.right_grip, t, u, p);
2908
2909     t.setPos(-(frame.rect.width() - style.grip_width), 0);
2910     bt::drawTexture(_screen->screenNumber(),
2911                     (client.state.focused ? style.focus.handle :
2912                                             style.unfocus.handle),
2913                     frame.right_grip, t, u, p);
2914   } else {
2915     bt::drawTexture(_screen->screenNumber(),
2916                     (client.state.focused ? style.focus.grip :
2917                                             style.unfocus.grip),
2918                     frame.left_grip, u, u, p);
2919
2920     bt::drawTexture(_screen->screenNumber(),
2921                     (client.state.focused ? style.focus.grip :
2922                                             style.unfocus.grip),
2923                     frame.right_grip, u, u, p);
2924   }
2925 }
2926
2927
2928 void
2929 BlackboxWindow::clientMessageEvent(const XClientMessageEvent * const event) {
2930   if (event->format != 32)
2931     return;
2932
2933   const bt::EWMH& ewmh = blackbox->ewmh();
2934
2935   if (event->message_type == blackbox->wmChangeStateAtom()) {
2936     if (event->data.l[0] == IconicState) {
2937       if (hasWindowFunction(WindowFunctionIconify))
2938         iconify();
2939     } else if (event->data.l[0] == NormalState) {
2940       activate();
2941     }
2942   } else if (event->message_type == ewmh.activeWindow()) {
2943     activate();
2944   } else if (event->message_type == ewmh.closeWindow()) {
2945     if (hasWindowFunction(WindowFunctionClose))
2946       close();
2947   } else if (event->message_type == ewmh.moveresizeWindow()) {
2948     XConfigureRequestEvent request;
2949     request.window = event->window;
2950     request.value_mask =
2951       (event->data.l[0] >> 8) & (CWX | CWY | CWWidth | CWHeight);
2952     request.x = event->data.l[1];
2953     request.y = event->data.l[2];
2954     request.width = event->data.l[3];
2955     request.height = event->data.l[4];
2956
2957     const int gravity = (event->data.l[0] & 0xff);
2958     const int old_gravity = client.wmnormal.win_gravity;
2959     if (event->data.l[0] != 0)
2960       client.wmnormal.win_gravity = gravity;
2961
2962     configureRequestEvent(&request);
2963
2964     client.wmnormal.win_gravity = old_gravity;
2965   } else if (event->message_type == ewmh.wmDesktop()) {
2966     if (hasWindowFunction(WindowFunctionChangeWorkspace)) {
2967       const unsigned int new_workspace = event->data.l[0];
2968       changeWorkspace(new_workspace);
2969     }
2970   } else if (event->message_type == ewmh.wmState()) {
2971     Atom action = event->data.l[0],
2972           first = event->data.l[1],
2973          second = event->data.l[2];
2974
2975     if (first == ewmh.wmStateModal() || second == ewmh.wmStateModal()) {
2976       if ((action == ewmh.wmStateAdd() ||
2977            (action == ewmh.wmStateToggle() && ! client.ewmh.modal)) &&
2978           isTransient())
2979         client.ewmh.modal = true;
2980       else
2981         client.ewmh.modal = false;
2982     }
2983
2984     if (hasWindowFunction(WindowFunctionMaximize)) {
2985       int max_horz = 0, max_vert = 0;
2986
2987       if (first == ewmh.wmStateMaximizedHorz() ||
2988           second == ewmh.wmStateMaximizedHorz()) {
2989         max_horz = ((action == ewmh.wmStateAdd()
2990                      || (action == ewmh.wmStateToggle()
2991                          && !client.ewmh.maxh))
2992                     ? 1 : -1);
2993       }
2994
2995       if (first == ewmh.wmStateMaximizedVert() ||
2996           second == ewmh.wmStateMaximizedVert()) {
2997         max_vert = ((action == ewmh.wmStateAdd()
2998                      || (action == ewmh.wmStateToggle()
2999                          && !client.ewmh.maxv))
3000                     ? 1 : -1);
3001       }
3002
3003       if (max_horz != 0 || max_vert != 0) {
3004         if (isMaximized())
3005           maximize(0);
3006         unsigned int button = 0u;
3007         if (max_horz == 1 && max_vert != 1)
3008           button = 3u;
3009         else if (max_vert == 1 && max_horz != 1)
3010           button = 2u;
3011         else if (max_vert == 1 && max_horz == 1)
3012           button = 1u;
3013         if (button)
3014           maximize(button);
3015       }
3016     }
3017
3018     if (hasWindowFunction(WindowFunctionShade)) {
3019       if (first == ewmh.wmStateShaded() ||
3020           second == ewmh.wmStateShaded()) {
3021         if (action == ewmh.wmStateRemove())
3022           setShaded(false);
3023         else if (action == ewmh.wmStateAdd())
3024           setShaded(true);
3025         else if (action == ewmh.wmStateToggle())
3026           setShaded(!isShaded());
3027       }
3028     }
3029
3030     if (first == ewmh.wmStateSkipTaskbar()
3031         || second == ewmh.wmStateSkipTaskbar()
3032         || first == ewmh.wmStateSkipPager()
3033         || second == ewmh.wmStateSkipPager()) {
3034       if (first == ewmh.wmStateSkipTaskbar()
3035           || second == ewmh.wmStateSkipTaskbar()) {
3036         client.ewmh.skip_taskbar = (action == ewmh.wmStateAdd()
3037                                     || (action == ewmh.wmStateToggle()
3038                                         && !client.ewmh.skip_taskbar));
3039       }
3040       if (first == ewmh.wmStateSkipPager()
3041           || second == ewmh.wmStateSkipPager()) {
3042         client.ewmh.skip_pager = (action == ewmh.wmStateAdd()
3043                                   || (action == ewmh.wmStateToggle()
3044                                       && !client.ewmh.skip_pager));
3045       }
3046       // we do nothing with skip_*, but others might... we should at
3047       // least make sure these are present in _NET_WM_STATE
3048       updateEWMHState();
3049     }
3050
3051     if (first == ewmh.wmStateHidden() ||
3052         second == ewmh.wmStateHidden()) {
3053       /*
3054         ignore _NET_WM_STATE_HIDDEN, the wm sets this state, not the
3055         application
3056       */
3057     }
3058
3059     if (hasWindowFunction(WindowFunctionFullScreen)) {
3060       if (first == ewmh.wmStateFullscreen() ||
3061           second == ewmh.wmStateFullscreen()) {
3062         if (action == ewmh.wmStateAdd() ||
3063             (action == ewmh.wmStateToggle() &&
3064              ! client.ewmh.fullscreen)) {
3065           setFullScreen(true);
3066         } else if (action == ewmh.wmStateToggle() ||
3067                    action == ewmh.wmStateRemove()) {
3068           setFullScreen(false);
3069         }
3070       }
3071     }
3072
3073     if (hasWindowFunction(WindowFunctionChangeLayer)) {
3074       if (first == ewmh.wmStateAbove() ||
3075           second == ewmh.wmStateAbove()) {
3076         if (action == ewmh.wmStateAdd() ||
3077             (action == ewmh.wmStateToggle() &&
3078              layer() != StackingList::LayerAbove)) {
3079           changeLayer(StackingList::LayerAbove);
3080         } else if (action == ewmh.wmStateToggle() ||
3081                    action == ewmh.wmStateRemove()) {
3082           changeLayer(StackingList::LayerNormal);
3083         }
3084       }
3085
3086       if (first == ewmh.wmStateBelow() ||
3087           second == ewmh.wmStateBelow()) {
3088         if (action == ewmh.wmStateAdd() ||
3089             (action == ewmh.wmStateToggle() &&
3090              layer() != StackingList::LayerBelow)) {
3091           changeLayer(StackingList::LayerBelow);
3092         } else if (action == ewmh.wmStateToggle() ||
3093                    action == ewmh.wmStateRemove()) {
3094           changeLayer(StackingList::LayerNormal);
3095         }
3096       }
3097     }
3098   }
3099 }
3100
3101
3102 void BlackboxWindow::unmapNotifyEvent(const XUnmapEvent * const event) {
3103   if (event->window != client.window)
3104     return;
3105
3106 #ifdef    DEBUG
3107   fprintf(stderr, "BlackboxWindow::unmapNotifyEvent() for 0x%lx\n",
3108           client.window);
3109 #endif // DEBUG
3110
3111   _screen->releaseWindow(this);
3112 }
3113
3114
3115 void
3116 BlackboxWindow::destroyNotifyEvent(const XDestroyWindowEvent * const event) {
3117   if (event->window != client.window)
3118     return;
3119
3120 #ifdef    DEBUG
3121   fprintf(stderr, "BlackboxWindow::destroyNotifyEvent() for 0x%lx\n",
3122           client.window);
3123 #endif // DEBUG
3124
3125   _screen->releaseWindow(this);
3126 }
3127
3128
3129 void BlackboxWindow::reparentNotifyEvent(const XReparentEvent * const event) {
3130   if (event->window != client.window || event->parent == frame.plate)
3131     return;
3132
3133 #ifdef    DEBUG
3134   fprintf(stderr, "BlackboxWindow::reparentNotifyEvent(): reparent 0x%lx to "
3135           "0x%lx.\n", client.window, event->parent);
3136 #endif // DEBUG
3137
3138   /*
3139     put the ReparentNotify event back into the queue so that
3140     BlackboxWindow::restore(void) can do the right thing
3141   */
3142   XEvent replay;
3143   replay.xreparent = *event;
3144   XPutBackEvent(blackbox->XDisplay(), &replay);
3145
3146   _screen->releaseWindow(this);
3147 }
3148
3149
3150 void BlackboxWindow::propertyNotifyEvent(const XPropertyEvent * const event) {
3151 #ifdef    DEBUG
3152   fprintf(stderr, "BlackboxWindow::propertyNotifyEvent(): for 0x%lx\n",
3153           client.window);
3154 #endif
3155
3156   switch(event->atom) {
3157   case XA_WM_TRANSIENT_FOR: {
3158     if (isTransient()) {
3159       // remove ourselves from our transient_for
3160       BlackboxWindow *win = findTransientFor();
3161       if (win) {
3162         win->removeTransient(this);
3163       } else if (isGroupTransient()) {
3164         BWindowGroup *group = findWindowGroup();
3165         if (group)
3166           group->removeTransient(this);
3167       }
3168     }
3169
3170     // determine if this is a transient window
3171     client.transient_for = ::readTransientInfo(blackbox,
3172                                                client.window,
3173                                                _screen->screenInfo(),
3174                                                client.wmhints);
3175
3176     if (isTransient()) {
3177       BlackboxWindow *win = findTransientFor();
3178       if (win) {
3179         // add ourselves to our new transient_for
3180         win->addTransient(this);
3181         changeWorkspace(win->workspace());
3182         changeLayer(win->layer());
3183       } else if (isGroupTransient()) {
3184         BWindowGroup *group = findWindowGroup();
3185         if (group)
3186           group->addTransient(this);
3187       } else {
3188         // broken client
3189         client.transient_for = 0;
3190       }
3191     }
3192
3193     ::update_decorations(client.decorations,
3194                          client.functions,
3195                          isTransient(),
3196                          client.ewmh,
3197                          client.motif,
3198                          client.wmnormal,
3199                          client.wmprotocols);
3200
3201     reconfigure();
3202     break;
3203   }
3204
3205   case XA_WM_HINTS: {
3206     // remove from current window group
3207     BWindowGroup *group = findWindowGroup();
3208     if (group) {
3209       if (isTransient() && !findTransientFor() && isGroupTransient())
3210         group->removeTransient(this);
3211       group->removeWindow(this);
3212       group = 0;
3213     }
3214
3215     client.wmhints = ::readWMHints(blackbox, client.window);
3216
3217     if (client.wmhints.window_group != None) {
3218       // add to new window group
3219       group = ::update_window_group(client.wmhints.window_group,
3220                                     blackbox,
3221                                     this);
3222       if (isTransient() && !findTransientFor() && isGroupTransient()) {
3223         if (group)
3224           group->addTransient(this);
3225       }
3226     }
3227     break;
3228   }
3229
3230   case XA_WM_ICON_NAME: {
3231     client.icon_title = ::readWMIconName(blackbox, client.window);
3232     if (client.state.iconic)
3233       _screen->propagateWindowName(this);
3234     break;
3235   }
3236
3237   case XA_WM_NAME: {
3238     client.title = ::readWMName(blackbox, client.window);
3239
3240     client.visible_title =
3241       bt::ellideText(client.title, frame.label_w, bt::toUnicode("..."),
3242                      _screen->screenNumber(),
3243                      _screen->resource().windowStyle().font);
3244     blackbox->ewmh().setWMVisibleName(client.window, client.visible_title);
3245
3246     if (client.decorations & WindowDecorationTitlebar)
3247       redrawLabel();
3248
3249     _screen->propagateWindowName(this);
3250     break;
3251   }
3252
3253   case XA_WM_NORMAL_HINTS: {
3254     WMNormalHints wmnormal = ::readWMNormalHints(blackbox, client.window,
3255                                                  _screen->screenInfo());
3256     if (wmnormal == client.wmnormal) {
3257       // apps like xv and GNU emacs seem to like to repeatedly set
3258       // this property over and over
3259       break;
3260     }
3261
3262     client.wmnormal = wmnormal;
3263
3264     ::update_decorations(client.decorations,
3265                          client.functions,
3266                          isTransient(),
3267                          client.ewmh,
3268                          client.motif,
3269                          client.wmnormal,
3270                          client.wmprotocols);
3271
3272     reconfigure();
3273     break;
3274   }
3275
3276   default: {
3277     if (event->atom == blackbox->wmProtocolsAtom()) {
3278       client.wmprotocols = ::readWMProtocols(blackbox, client.window);
3279
3280       ::update_decorations(client.decorations,
3281                            client.functions,
3282                            isTransient(),
3283                            client.ewmh,
3284                            client.motif,
3285                            client.wmnormal,
3286                            client.wmprotocols);
3287
3288       reconfigure();
3289     } else if (event->atom == blackbox->motifWmHintsAtom()) {
3290       client.motif = ::readMotifWMHints(blackbox, client.window);
3291
3292       ::update_decorations(client.decorations,
3293                            client.functions,
3294                            isTransient(),
3295                            client.ewmh,
3296                            client.motif,
3297                            client.wmnormal,
3298                            client.wmprotocols);
3299
3300       reconfigure();
3301     } else if (event->atom == blackbox->ewmh().wmStrut()) {
3302       if (! client.strut) {
3303         client.strut = new bt::EWMH::Strut;
3304         _screen->addStrut(client.strut);
3305       }
3306
3307       blackbox->ewmh().readWMStrut(client.window, client.strut);
3308       if (client.strut->left || client.strut->right ||
3309           client.strut->top || client.strut->bottom) {
3310         _screen->updateStrut();
3311       } else {
3312         _screen->removeStrut(client.strut);
3313         delete client.strut;
3314         client.strut = 0;
3315       }
3316     }
3317
3318     break;
3319   }
3320   } // switch
3321 }
3322
3323
3324 void BlackboxWindow::exposeEvent(const XExposeEvent * const event) {
3325 #ifdef DEBUG
3326   fprintf(stderr, "BlackboxWindow::exposeEvent() for 0x%lx\n", client.window);
3327 #endif
3328
3329   if (frame.title == event->window)
3330     redrawTitle();
3331   else if (frame.label == event->window)
3332     redrawLabel();
3333   else if (frame.close_button == event->window)
3334     redrawCloseButton();
3335   else if (frame.maximize_button == event->window)
3336     redrawMaximizeButton();
3337   else if (frame.iconify_button == event->window)
3338     redrawIconifyButton();
3339   else if (frame.handle == event->window)
3340     redrawHandle();
3341   else if (frame.left_grip == event->window ||
3342            frame.right_grip == event->window)
3343     redrawGrips();
3344 }
3345
3346
3347 void BlackboxWindow::configureRequestEvent(const XConfigureRequestEvent *
3348                                            const event) {
3349   if (event->window != client.window || client.state.iconic)
3350     return;
3351
3352   if (event->value_mask & CWBorderWidth)
3353     client.old_bw = event->border_width;
3354
3355   if (event->value_mask & (CWX | CWY | CWWidth | CWHeight)) {
3356     bt::Rect req = frame.rect;
3357
3358     if (event->value_mask & (CWX | CWY)) {
3359       req = ::restoreGravity(req, frame.margin, client.wmnormal.win_gravity);
3360
3361       if (event->value_mask & CWX)
3362         req.setX(event->x);
3363       if (event->value_mask & CWY)
3364         req.setY(event->y);
3365
3366       req = ::applyGravity(req, frame.margin, client.wmnormal.win_gravity);
3367     }
3368
3369     if (event->value_mask & (CWWidth | CWHeight)) {
3370       if (event->value_mask & CWWidth)
3371         req.setWidth(event->width + frame.margin.left + frame.margin.right);
3372       if (event->value_mask & CWHeight)
3373         req.setHeight(event->height + frame.margin.top + frame.margin.bottom);
3374     }
3375
3376     configure(req);
3377   }
3378
3379   if (event->value_mask & CWStackMode) {
3380     switch (event->detail) {
3381     case Below:
3382     case BottomIf:
3383       _screen->lowerWindow(this);
3384       break;
3385
3386     case Above:
3387     case TopIf:
3388     default:
3389       _screen->raiseWindow(this);
3390       break;
3391     }
3392   }
3393 }
3394
3395
3396 void BlackboxWindow::buttonPressEvent(const XButtonEvent * const event) {
3397 #ifdef DEBUG
3398   fprintf(stderr, "BlackboxWindow::buttonPressEvent() for 0x%lx\n",
3399           client.window);
3400 #endif
3401
3402   if (frame.maximize_button == event->window) {
3403     if (event->button < 4)
3404       redrawMaximizeButton(true);
3405   } else if (frame.iconify_button == event->window) {
3406     if (event->button == 1)
3407       redrawIconifyButton(true);
3408   } else if (frame.close_button == event->window) {
3409     if (event->button == 1)
3410       redrawCloseButton(true);
3411   } else {
3412     if (event->button == 1
3413         || (event->button == 3 && event->state == Mod1Mask)) {
3414       frame.grab_x = event->x_root - frame.rect.x();
3415       frame.grab_y = event->y_root - frame.rect.y();
3416
3417       _screen->raiseWindow(this);
3418
3419       if (! client.state.focused)
3420         (void) setInputFocus();
3421       else
3422         XInstallColormap(blackbox->XDisplay(), client.colormap);
3423
3424       if (frame.plate == event->window) {
3425         XAllowEvents(blackbox->XDisplay(), ReplayPointer, event->time);
3426       } else if ((frame.title == event->window
3427                   || frame.label == event->window)
3428                  && hasWindowFunction(WindowFunctionShade)) {
3429         if ((event->time - lastButtonPressTime <=
3430              blackbox->resource().doubleClickInterval()) ||
3431             event->state == ControlMask) {
3432           lastButtonPressTime = 0;
3433           setShaded(!isShaded());
3434         } else {
3435           lastButtonPressTime = event->time;
3436         }
3437       }
3438     } else if (event->button == 2) {
3439       _screen->lowerWindow(this);
3440     } else if (event->button == 3
3441                || (event->button == 3 && event->state == Mod4Mask)) {
3442       const int extra = _screen->resource().windowStyle().frame_border_width;
3443       const bt::Rect rect(client.rect.x() - extra,
3444                           client.rect.y() - extra,
3445                           client.rect.width() + (extra * 2),
3446                           client.rect.height() + (extra * 2));
3447
3448       Windowmenu *windowmenu = _screen->windowmenu(this);
3449       windowmenu->popup(event->x_root, event->y_root, rect);
3450     } else if (blackbox->resource().shadeWindowWithMouseWheel()) {
3451       if (event->button == 4
3452        && hasWindowFunction(WindowFunctionShade)
3453        && !isShaded()) {
3454         setShaded(true);
3455       } else if (event->button == 5
3456        && hasWindowFunction(WindowFunctionShade)
3457        && isShaded()) {
3458         setShaded(false);
3459       }
3460     }
3461   }
3462 }
3463
3464
3465 void BlackboxWindow::buttonReleaseEvent(const XButtonEvent * const event) {
3466 #ifdef DEBUG
3467   fprintf(stderr, "BlackboxWindow::buttonReleaseEvent() for 0x%lx\n",
3468           client.window);
3469 #endif
3470
3471   const WindowStyle &style = _screen->resource().windowStyle();
3472   if (event->window == frame.maximize_button) {
3473     if (event->button < 4) {
3474       if (bt::within(event->x, event->y,
3475                      style.button_width, style.button_width)) {
3476         maximize(event->button);
3477         _screen->raiseWindow(this);
3478       } else {
3479         redrawMaximizeButton();
3480       }
3481     }
3482   } else if (event->window == frame.iconify_button) {
3483     if (event->button == 1) {
3484       if (bt::within(event->x, event->y,
3485                      style.button_width, style.button_width))
3486         iconify();
3487       else
3488         redrawIconifyButton();
3489     }
3490   } else if (event->window == frame.close_button) {
3491     if (event->button == 1) {
3492       if (bt::within(event->x, event->y,
3493                      style.button_width, style.button_width))
3494         close();
3495       redrawCloseButton();
3496     }
3497   } else if (client.state.moving) {
3498     finishMove();
3499   } else if (client.state.resizing) {
3500     finishResize();
3501   } else if (event->window == frame.window) {
3502     if (event->button == 2 && event->state == Mod1Mask)
3503       XUngrabPointer(blackbox->XDisplay(), blackbox->XTime());
3504   }
3505 }
3506
3507
3508 void BlackboxWindow::motionNotifyEvent(const XMotionEvent * const event) {
3509 #ifdef DEBUG
3510   fprintf(stderr, "BlackboxWindow::motionNotifyEvent() for 0x%lx\n",
3511           client.window);
3512 #endif
3513
3514   if (hasWindowFunction(WindowFunctionMove)
3515       && !client.state.resizing
3516       && event->state & Button1Mask
3517       && (frame.title == event->window || frame.label == event->window
3518           || frame.handle == event->window || frame.window == event->window)) {
3519     if (! client.state.moving)
3520       startMove();
3521     else
3522       continueMove(event->x_root, event->y_root);
3523   } else if (hasWindowFunction(WindowFunctionResize)
3524              && (event->state & Button1Mask
3525                  && (event->window == frame.right_grip
3526                      || event->window == frame.left_grip))
3527              || (event->state & Button3Mask
3528                  && event->state & Mod1Mask
3529                  && event->window == frame.window)) {
3530     if (!client.state.resizing)
3531       startResize(event->window);
3532     else
3533       continueResize(event->x_root, event->y_root);
3534   }
3535 }
3536
3537
3538 void BlackboxWindow::enterNotifyEvent(const XCrossingEvent * const event) {
3539   if (event->window != frame.window || event->mode != NotifyNormal)
3540     return;
3541
3542   if (blackbox->resource().focusModel() == ClickToFocusModel || !isVisible())
3543     return;
3544
3545   switch (windowType()) {
3546   case WindowTypeDesktop:
3547   case WindowTypeDock:
3548     // these types cannot be focused w/ sloppy focus
3549     return;
3550
3551   default:
3552     break;
3553   }
3554
3555   XEvent next;
3556   bool leave = False, inferior = False;
3557
3558   while (XCheckTypedWindowEvent(blackbox->XDisplay(), event->window,
3559                                 LeaveNotify, &next)) {
3560     if (next.type == LeaveNotify && next.xcrossing.mode == NotifyNormal) {
3561       leave = True;
3562       inferior = (next.xcrossing.detail == NotifyInferior);
3563     }
3564   }
3565
3566   if ((! leave || inferior) && ! isFocused())
3567     (void) setInputFocus();
3568
3569   if (blackbox->resource().autoRaise())
3570     timer->start();
3571 }
3572
3573
3574 void
3575 BlackboxWindow::leaveNotifyEvent(const XCrossingEvent * const /*unused*/) {
3576   if (!(blackbox->resource().focusModel() == SloppyFocusModel
3577         && blackbox->resource().autoRaise()))
3578     return;
3579
3580   if (timer->isTiming())
3581     timer->stop();
3582 }
3583
3584
3585 #ifdef    SHAPE
3586 void BlackboxWindow::shapeEvent(const XEvent * const /*unused*/)
3587 { if (client.state.shaped) configureShape(); }
3588 #endif // SHAPE
3589
3590
3591 /*
3592  *
3593  */
3594 void BlackboxWindow::restore(void) {
3595   XChangeSaveSet(blackbox->XDisplay(), client.window, SetModeDelete);
3596   XSelectInput(blackbox->XDisplay(), client.window, NoEventMask);
3597   XSelectInput(blackbox->XDisplay(), frame.plate, NoEventMask);
3598
3599   client.state.visible = false;
3600
3601   /*
3602     remove WM_STATE unless the we are shutting down (in which case we
3603     want to make sure we preserve the state across restarts).
3604   */
3605   if (!blackbox->shuttingDown()) {
3606     clearState(blackbox, client.window);
3607   } else if (isShaded() && !isIconic()) {
3608     // do not leave a shaded window as an icon unless it was an icon
3609     setState(NormalState);
3610   }
3611
3612   client.rect = ::restoreGravity(frame.rect, frame.margin,
3613                                  client.wmnormal.win_gravity);
3614
3615   blackbox->XGrabServer();
3616
3617   XUnmapWindow(blackbox->XDisplay(), frame.window);
3618   XUnmapWindow(blackbox->XDisplay(), client.window);
3619
3620   XSetWindowBorderWidth(blackbox->XDisplay(), client.window, client.old_bw);
3621   if (isMaximized()) {
3622     // preserve the original size
3623     client.rect = client.premax;
3624     XMoveResizeWindow(blackbox->XDisplay(), client.window,
3625                       client.premax.x(),
3626                       client.premax.y(),
3627                       client.premax.width(),
3628                       client.premax.height());
3629   } else {
3630     XMoveWindow(blackbox->XDisplay(), client.window,
3631                 client.rect.x() - frame.rect.x(),
3632                 client.rect.y() - frame.rect.y());
3633   }
3634
3635   blackbox->XUngrabServer();
3636
3637   XEvent unused;
3638   if (!XCheckTypedWindowEvent(blackbox->XDisplay(), client.window,
3639                               ReparentNotify, &unused)) {
3640     /*
3641       according to the ICCCM, the window manager is responsible for
3642       reparenting the window back to root... however, we don't want to
3643       do this if the window has been reparented by someone else
3644       (i.e. not us).
3645     */
3646     XReparentWindow(blackbox->XDisplay(), client.window,
3647                     _screen->screenInfo().rootWindow(),
3648                     client.rect.x(), client.rect.y());
3649   }
3650
3651   if (blackbox->shuttingDown())
3652     XMapWindow(blackbox->XDisplay(), client.window);
3653 }
3654
3655
3656 // timer for autoraise
3657 void BlackboxWindow::timeout(bt::Timer *)
3658 { _screen->raiseWindow(this); }
3659
3660
3661 void BlackboxWindow::startMove() {
3662   // begin a move
3663   XGrabPointer(blackbox->XDisplay(), frame.window, false,
3664                Button1MotionMask | ButtonReleaseMask,
3665                GrabModeAsync, GrabModeAsync, None,
3666                blackbox->resource().cursors().move, blackbox->XTime());
3667
3668   client.state.moving = true;
3669
3670   if (! blackbox->resource().opaqueMove()) {
3671     blackbox->XGrabServer();
3672
3673     frame.changing = frame.rect;
3674     _screen->showGeometry(BScreen::Position, frame.changing);
3675
3676     bt::Pen pen(_screen->screenNumber(), bt::Color(0xff, 0xff, 0xff));
3677     const int bw = _screen->resource().windowStyle().frame_border_width,
3678               hw = bw / 2;
3679     pen.setGCFunction(GXxor);
3680     pen.setLineWidth(bw);
3681     pen.setSubWindowMode(IncludeInferiors);
3682     XDrawRectangle(blackbox->XDisplay(), _screen->screenInfo().rootWindow(),
3683                    pen.gc(),
3684                    frame.changing.x() + hw,
3685                    frame.changing.y() + hw,
3686                    frame.changing.width() - bw,
3687                    frame.changing.height() - bw);
3688   }
3689 }
3690
3691
3692 static
3693 void collisionAdjust(int *dx, int *dy, int x, int y,
3694                      unsigned int width, unsigned int height,
3695                      const bt::Rect& rect, int snap_distance,
3696                      bool snapCenter = false)
3697 {
3698   // window corners
3699   const int wleft = x,
3700            wright = x + width - 1,
3701              wtop = y,
3702           wbottom = y + height - 1,
3703   // left, right, top + bottom are for rect, douterleft = left border of rect
3704        dinnerleft = abs(wleft - rect.left()),
3705       dinnerright = abs(wright - rect.right()),
3706         dinnertop = abs(wtop - rect.top()),
3707      dinnerbottom = abs(wbottom - rect.bottom()),
3708        douterleft = abs(wright - rect.left()),
3709       douterright = abs(wleft - rect.right()),
3710         doutertop = abs(wbottom - rect.top()),
3711      douterbottom = abs(wtop - rect.bottom());
3712
3713   if ((wtop <= rect.bottom() && wbottom >= rect.top())
3714       || doutertop <= snap_distance
3715       || douterbottom <= snap_distance) {
3716     // snap left or right
3717     if (douterleft <= dinnerleft && douterleft <= snap_distance)
3718       // snap outer left
3719       *dx = (x - (rect.left() - width));
3720     else if (douterright <= dinnerright && douterright <= snap_distance)
3721       // snap outer right
3722       *dx = (x - rect.right() - 1);
3723     else if (dinnerleft <= dinnerright && dinnerleft < snap_distance)
3724       // snap inner left
3725       *dx = (x - rect.left());
3726     else if (dinnerright < snap_distance)
3727       // snap inner right
3728       *dx = (x - (rect.right() - width + 1));
3729   }
3730
3731   if ((wleft <= rect.right() && wright >= rect.left())
3732       || douterleft <= snap_distance
3733       || douterright <= snap_distance) {
3734     // snap top or bottom
3735     if (doutertop <= dinnertop && doutertop <= snap_distance)
3736       // snap outer top
3737       *dy = (y - (rect.top() - height));
3738     else if (douterbottom <= dinnerbottom && douterbottom <= snap_distance)
3739       // snap outer bottom
3740       *dy = (y - rect.bottom() - 1);
3741     else if (dinnertop <= dinnerbottom && dinnertop < snap_distance)
3742       // snap inner top
3743       *dy = (y - rect.top());
3744     else if (dinnerbottom < snap_distance)
3745       // snap inner bottom
3746       *dy = (y - (rect.bottom() - height + 1));
3747   }
3748
3749   if (snapCenter) {
3750     const int cwx = x + width / 2;
3751     const int cwy = y + height / 2;
3752     const int crx = rect.x() + rect.width() / 2;
3753     const int cry = rect.y() + rect.height() / 2;
3754     const int cdx = abs(cwx - crx);
3755     const int cdy = abs(cwy - cry);
3756     if (cdx <= snap_distance)
3757       // snap to horizontal center
3758       *dx = x - (rect.x() + ((rect.width() - width) / 2));
3759     if (cdy <= snap_distance)
3760       // snap to vertical center
3761       *dy = y - (rect.y() + ((rect.height() - height) / 2));
3762   }
3763 }
3764
3765
3766 void BlackboxWindow::snapAdjust(int *x, int *y) {
3767   int nx, ny, dx, dy, init_dx, init_dy;
3768   const int edge_distance = blackbox->resource().edgeSnapThreshold();
3769   const int win_distance  = blackbox->resource().windowSnapThreshold();
3770
3771   nx = (win_distance > edge_distance) ? win_distance : edge_distance;
3772   ny = (win_distance > edge_distance) ? win_distance : edge_distance;
3773   dx = init_dx = ++nx; dy = init_dy = ++ny;
3774
3775   if (edge_distance) {
3776     collisionAdjust(&dx, &dy, *x, *y, frame.rect.width(), frame.rect.height(),
3777                     _screen->availableArea(), edge_distance, true);
3778     nx = (dx != init_dx && abs(dx) < abs(nx)) ? dx : nx; dx = init_dx;
3779     ny = (dy != init_dy && abs(dy) < abs(ny)) ? dy : ny; dy = init_dy;
3780     if (!blackbox->resource().fullMaximization()) {
3781       collisionAdjust(&dx, &dy, *x, *y, frame.rect.width(), frame.rect.height(),
3782                       _screen->screenInfo().rect(), edge_distance);
3783       nx = (dx != init_dx && abs(dx) < abs(nx)) ? dx : nx; dx = init_dx;
3784       ny = (dy != init_dy && abs(dy) < abs(ny)) ? dy : ny; dy = init_dy;
3785     }
3786   }
3787   if (win_distance) {
3788     StackingList::const_iterator it = _screen->stackingList().begin(),
3789                                 end = _screen->stackingList().end();
3790     for (; it != end; ++it) {
3791       BlackboxWindow * const win = dynamic_cast<BlackboxWindow *>(*it);
3792       if (win && win != this &&
3793           win->workspace() == _screen->currentWorkspace()) {
3794         collisionAdjust(&dx, &dy, *x, *y, frame.rect.width(),
3795                         frame.rect.height(), win->frame.rect, win_distance);
3796         nx = (dx != init_dx && abs(dx) < abs(nx)) ? dx : nx; dx = init_dx;
3797         ny = (dy != init_dy && abs(dy) < abs(ny)) ? dy : ny; dy = init_dy;
3798       }
3799     }
3800   }
3801
3802   *x = (nx != init_dx) ? (*x - nx) : *x;
3803   *y = (ny != init_dy) ? (*y - ny) : *y;
3804 }
3805
3806
3807 void BlackboxWindow::continueMove(int x_root, int y_root) {
3808   int dx = x_root - frame.grab_x, dy = y_root - frame.grab_y;
3809
3810   snapAdjust(&dx, &dy);
3811
3812   if (blackbox->resource().opaqueMove()) {
3813     configure(dx, dy, frame.rect.width(), frame.rect.height());
3814   } else {
3815     bt::Pen pen(_screen->screenNumber(), bt::Color(0xff, 0xff, 0xff));
3816     const int bw = _screen->resource().windowStyle().frame_border_width,
3817               hw = bw / 2;
3818     pen.setGCFunction(GXxor);
3819     pen.setLineWidth(bw);
3820     pen.setSubWindowMode(IncludeInferiors);
3821     XDrawRectangle(blackbox->XDisplay(), _screen->screenInfo().rootWindow(),
3822                    pen.gc(),
3823                    frame.changing.x() + hw,
3824                    frame.changing.y() + hw,
3825                    frame.changing.width() - bw,
3826                    frame.changing.height() - bw);
3827
3828     frame.changing.setPos(dx, dy);
3829
3830     XDrawRectangle(blackbox->XDisplay(), _screen->screenInfo().rootWindow(),
3831                    pen.gc(),
3832                    frame.changing.x() + hw,
3833                    frame.changing.y() + hw,
3834                    frame.changing.width() - bw,
3835                    frame.changing.height() - bw);
3836   }
3837
3838   _screen->showGeometry(BScreen::Position, bt::Rect(dx, dy, 0, 0));
3839 }
3840
3841
3842 void BlackboxWindow::finishMove() {
3843   XUngrabPointer(blackbox->XDisplay(), blackbox->XTime());
3844
3845   client.state.moving = false;
3846
3847   if (!blackbox->resource().opaqueMove()) {
3848     bt::Pen pen(_screen->screenNumber(), bt::Color(0xff, 0xff, 0xff));
3849     const int bw = _screen->resource().windowStyle().frame_border_width,
3850               hw = bw / 2;
3851     pen.setGCFunction(GXxor);
3852     pen.setLineWidth(bw);
3853     pen.setSubWindowMode(IncludeInferiors);
3854     XDrawRectangle(blackbox->XDisplay(),
3855                    _screen->screenInfo().rootWindow(),
3856                    pen.gc(),
3857                    frame.changing.x() + hw,
3858                    frame.changing.y() + hw,
3859                    frame.changing.width() - bw,
3860                    frame.changing.height() - bw);
3861     blackbox->XUngrabServer();
3862
3863     configure(frame.changing);
3864   } else {
3865     configure(frame.rect);
3866   }
3867
3868   _screen->hideGeometry();
3869 }
3870
3871
3872 void BlackboxWindow::startResize(Window window) {
3873   if (frame.grab_x < (signed) frame.rect.width() / 2) {
3874     if (frame.grab_y < (signed) frame.rect.height() / 2)
3875       frame.corner = BottomRight;
3876     else
3877       frame.corner = TopRight;
3878   } else {
3879     if (frame.grab_y < (signed) frame.rect.height() / 2)
3880       frame.corner = BottomLeft;
3881     else
3882       frame.corner = TopLeft;
3883   }
3884
3885   Cursor cursor = None;
3886   switch (frame.corner) {
3887   case TopLeft:
3888     cursor = blackbox->resource().cursors().resize_bottom_right;
3889     frame.grab_x = frame.rect.width() - frame.grab_x;
3890     frame.grab_y = frame.rect.height() - frame.grab_y;
3891     break;
3892   case BottomLeft:
3893     cursor = blackbox->resource().cursors().resize_top_right;
3894     frame.grab_x = frame.rect.width() - frame.grab_x;
3895     break;
3896   case TopRight:
3897     cursor = blackbox->resource().cursors().resize_bottom_left;
3898     frame.grab_y = frame.rect.height() - frame.grab_y;
3899     break;
3900   case BottomRight:
3901     cursor = blackbox->resource().cursors().resize_top_left;
3902     break;
3903   }
3904
3905   // begin a resize
3906   XGrabPointer(blackbox->XDisplay(), window, False,
3907                ButtonMotionMask | ButtonReleaseMask,
3908                GrabModeAsync, GrabModeAsync, None, cursor, blackbox->XTime());
3909
3910   client.state.resizing = true;
3911
3912   frame.changing = constrain(frame.rect, frame.margin, client.wmnormal,
3913                              Corner(frame.corner));
3914
3915   if (!blackbox->resource().opaqueResize()) {
3916     blackbox->XGrabServer();
3917
3918     bt::Pen pen(_screen->screenNumber(), bt::Color(0xff, 0xff, 0xff));
3919     const int bw = _screen->resource().windowStyle().frame_border_width,
3920               hw = bw / 2;
3921     pen.setGCFunction(GXxor);
3922     pen.setLineWidth(bw);
3923     pen.setSubWindowMode(IncludeInferiors);
3924     XDrawRectangle(blackbox->XDisplay(),
3925                    _screen->screenInfo().rootWindow(),
3926                    pen.gc(),
3927                    frame.changing.x() + hw,
3928                    frame.changing.y() + hw,
3929                    frame.changing.width() - bw,
3930                    frame.changing.height() - bw);
3931   } else {
3932     // unset maximized state when resized
3933     if (isMaximized())
3934       maximize(0);
3935   }
3936
3937   showGeometry(frame.changing);
3938 }
3939
3940
3941 void BlackboxWindow::continueResize(int x_root, int y_root) {
3942   // continue a resize
3943   const bt::Rect curr = frame.changing;
3944
3945   switch (frame.corner) {
3946   case TopLeft:
3947   case BottomLeft:
3948     frame.changing.setCoords(frame.changing.left(),
3949                              frame.changing.top(),
3950                              std::max<signed>(x_root + frame.grab_x,
3951                                               frame.changing.left()
3952                                               + (frame.margin.left
3953                                                  + frame.margin.right + 1)),
3954                              frame.changing.bottom());
3955     break;
3956   case TopRight:
3957   case BottomRight:
3958     frame.changing.setCoords(std::min<signed>(x_root - frame.grab_x,
3959                                               frame.changing.right()
3960                                               - (frame.margin.left
3961                                                  + frame.margin.right + 1)),
3962                              frame.changing.top(),
3963                              frame.changing.right(),
3964                              frame.changing.bottom());
3965     break;
3966   }
3967
3968   switch (frame.corner) {
3969   case TopLeft:
3970   case TopRight:
3971     frame.changing.setCoords(frame.changing.left(),
3972                              frame.changing.top(),
3973                              frame.changing.right(),
3974                              std::max<signed>(y_root + frame.grab_y,
3975                                               frame.changing.top()
3976                                               + (frame.margin.top
3977                                                  + frame.margin.bottom + 1)));
3978     break;
3979   case BottomLeft:
3980   case BottomRight:
3981     frame.changing.setCoords(frame.changing.left(),
3982                              std::min<signed>(y_root - frame.grab_y,
3983                                               frame.rect.bottom()
3984                                               - (frame.margin.top
3985                                                  + frame.margin.bottom + 1)),
3986                              frame.changing.right(),
3987                              frame.changing.bottom());
3988     break;
3989   }
3990
3991   frame.changing = constrain(frame.changing, frame.margin, client.wmnormal,
3992                              Corner(frame.corner));
3993
3994   if (curr != frame.changing) {
3995     if (blackbox->resource().opaqueResize()) {
3996       configure(frame.changing);
3997     } else {
3998       bt::Pen pen(_screen->screenNumber(), bt::Color(0xff, 0xff, 0xff));
3999       const int bw = _screen->resource().windowStyle().frame_border_width,
4000                 hw = bw / 2;
4001       pen.setGCFunction(GXxor);
4002       pen.setLineWidth(bw);
4003       pen.setSubWindowMode(IncludeInferiors);
4004       XDrawRectangle(blackbox->XDisplay(),
4005                      _screen->screenInfo().rootWindow(),
4006                      pen.gc(),
4007                      curr.x() + hw,
4008                      curr.y() + hw,
4009                      curr.width() - bw,
4010                      curr.height() - bw);
4011
4012       XDrawRectangle(blackbox->XDisplay(),
4013                      _screen->screenInfo().rootWindow(),
4014                      pen.gc(),
4015                      frame.changing.x() + hw,
4016                      frame.changing.y() + hw,
4017                      frame.changing.width() - bw,
4018                      frame.changing.height() - bw);
4019     }
4020
4021     showGeometry(frame.changing);
4022   }
4023 }
4024
4025
4026 void BlackboxWindow::finishResize() {
4027
4028   if (!blackbox->resource().opaqueResize()) {
4029     bt::Pen pen(_screen->screenNumber(), bt::Color(0xff, 0xff, 0xff));
4030     const int bw = _screen->resource().windowStyle().frame_border_width,
4031               hw = bw / 2;
4032     pen.setGCFunction(GXxor);
4033     pen.setLineWidth(bw);
4034     pen.setSubWindowMode(IncludeInferiors);
4035     XDrawRectangle(blackbox->XDisplay(),
4036                    _screen->screenInfo().rootWindow(),
4037                    pen.gc(),
4038                    frame.changing.x() + hw,
4039                    frame.changing.y() + hw,
4040                    frame.changing.width() - bw,
4041                    frame.changing.height() - bw);
4042
4043     blackbox->XUngrabServer();
4044
4045     // unset maximized state when resized
4046     if (isMaximized())
4047       maximize(0);
4048   }
4049
4050   client.state.resizing = false;
4051
4052   XUngrabPointer(blackbox->XDisplay(), blackbox->XTime());
4053
4054   _screen->hideGeometry();
4055
4056   frame.changing = constrain(frame.changing, frame.margin, client.wmnormal,
4057                              Corner(frame.corner));
4058   configure(frame.changing);
4059 }
4060
4061
4062 /*
4063  * show the geometry of the window based on rectangle r.
4064  * The logical width and height are used here.  This refers to the user's
4065  * perception of the window size (for example an xterm resizes in cells,
4066  * not in pixels).  No extra work is needed if there is no difference between
4067  * the logical and actual dimensions.
4068  */
4069 void BlackboxWindow::showGeometry(const bt::Rect &r) const {
4070   unsigned int w = r.width(), h = r.height();
4071
4072   // remove the window frame
4073   w -= frame.margin.left + frame.margin.right;
4074   h -= frame.margin.top + frame.margin.bottom;
4075
4076   if (client.wmnormal.flags & PResizeInc) {
4077     if (client.wmnormal.flags & (PMinSize|PBaseSize)) {
4078       w -= ((client.wmnormal.base_width)
4079             ? client.wmnormal.base_width
4080             : client.wmnormal.min_width);
4081       h -= ((client.wmnormal.base_height)
4082             ? client.wmnormal.base_height
4083             : client.wmnormal.min_height);
4084     }
4085
4086     w /= client.wmnormal.width_inc;
4087     h /= client.wmnormal.height_inc;
4088   }
4089
4090   _screen->showGeometry(BScreen::Size, bt::Rect(0, 0, w, h));
4091 }
4092
4093
4094 // see my rant above for an explanation of this operator
4095 bool operator==(const WMNormalHints &x, const WMNormalHints &y) {
4096   return (x.flags == y.flags
4097           && x.min_width == y.min_width
4098           && x.min_height == y.min_height
4099           && x.max_width == y.max_width
4100           && x.max_height == y.max_height
4101           && x.width_inc == y.width_inc
4102           && x.height_inc == y.height_inc
4103           && x.min_aspect_x == y.min_aspect_x
4104           && x.min_aspect_y == y.min_aspect_y
4105           && x.max_aspect_x == y.max_aspect_x
4106           && x.max_aspect_y == y.max_aspect_y
4107           && x.base_width == y.base_width
4108           && x.base_height == y.base_height
4109           && x.win_gravity == y.win_gravity);
4110 }