Dogcows Code - chaz/openbox/blob - util/epist/window.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 // window.cc for Epistrophy - a key handler for NETWM/EWMH window managers.
   3 // Copyright (c) 2002 - 2002 Ben Jansens <ben at orodu.net>
   4 //
   5 // Permission is hereby granted, free of charge, to any person obtaining a
   6 // copy of this software and associated documentation files (the "Software"),
   7 // to deal in the Software without restriction, including without limitation
   8 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9 // and/or sell copies of the Software, and to permit persons to whom the
  10 // Software is furnished to do so, subject to the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be included in
  13 // all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21 // DEALINGS IN THE SOFTWARE.
  22
  23 #ifdef    HAVE_CONFIG_H
  24 #  include "../../config.h"
  25 #endif // HAVE_CONFIG_H
  26
  27 #include <iostream>
  28
  29 using std::cout;
  30 using std::endl;
  31 using std::hex;
  32 using std::dec;
  33
  34 #include "epist.hh"
  35 #include "screen.hh"
  36 #include "window.hh"
  37 #include "../../src/XAtom.hh"
  38
  39   // defined by black/openbox
  40 const unsigned long XWindow::PropBlackboxAttributesElements;
  41 const unsigned long XWindow::AttribDecoration;
  42 const unsigned long XWindow::DecorNone;
  43 const unsigned long XWindow::DecorNormal;
  44
  45
  46 XWindow::XWindow(epist *epist, screen *screen, Window window)
  47   : _epist(epist), _screen(screen), _xatom(epist->xatom()), _window(window) {
  48
  49   _unmapped = false;
  50
  51   XSelectInput(_epist->getXDisplay(), _window,
  52                PropertyChangeMask | StructureNotifyMask);
  53
  54   updateBlackboxAttributes();
  55   updateNormalHints();
  56   updateWMHints();
  57   updateDimentions();
  58   updateState();
  59   updateDesktop();
  60   updateTitle();
  61   updateClass();
  62
  63   _epist->addWindow(this);
  64 }
  65
  66
  67 XWindow::~XWindow() {
  68   if (! _unmapped)
  69     XSelectInput(_epist->getXDisplay(), _window, None);
  70   _epist->removeWindow(this);
  71 }
  72
  73
  74 void XWindow::updateDimentions() {
  75   Window root, child;
  76   int x, y;
  77   unsigned int w, h, b, d;
  78
  79   if (XGetGeometry(_epist->getXDisplay(), _window, &root, &x, &y, &w, &h,
  80                      &b, &d) &&
  81       XTranslateCoordinates(_epist->getXDisplay(), _window, root, x, y,
  82                             &x, &y, &child))
  83     _rect.setRect(x, y, w, h);
  84   else
  85     _rect.setRect(0, 0, 1, 1);
  86 }
  87
  88
  89 void XWindow::updateBlackboxAttributes() {
  90   unsigned long *data;
  91   unsigned long num = PropBlackboxAttributesElements;
  92
  93   _decorated = true;
  94
  95   if (_xatom->getValue(_window,
  96                        XAtom::blackbox_attributes, XAtom::blackbox_attributes,
  97                        num, &data)) {
  98     if (num == PropBlackboxAttributesElements)
  99       if (data[0] & AttribDecoration)
 100         _decorated = (data[4] != DecorNone);
 101     delete data;
 102   }
 103 }
 104
 105
 106 void XWindow::updateNormalHints() {
 107   XSizeHints size;
 108   long ret;
 109
 110   // defaults
 111   _gravity = NorthWestGravity;
 112   _inc_x = _inc_y = 1;
 113   _base_x = _base_y = 0;
 114
 115   if (XGetWMNormalHints(_epist->getXDisplay(), _window, &size, &ret)) {
 116     if (size.flags & PWinGravity)
 117       _gravity = size.win_gravity;
 118     if (size.flags & PBaseSize) {
 119       _base_x = size.base_width;
 120       _base_y = size.base_height;
 121     }
 122     if (size.flags & PResizeInc) {
 123       _inc_x = size.width_inc;
 124       _inc_y = size.height_inc;
 125     }
 126   }
 127 }
 128
 129
 130 void XWindow::updateWMHints() {
 131   XWMHints *hints;
 132
 133   if ((hints = XGetWMHints(_epist->getXDisplay(), _window)) != NULL) {
 134     _can_focus = hints->input;
 135     XFree(hints);
 136   } else {
 137     // assume a window takes input if it doesnt specify
 138     _can_focus = True;
 139   }
 140 }
 141
 142
 143 void XWindow::updateState() {
 144   // set the defaults
 145   _shaded = _iconic = _max_vert = _max_horz = false;
 146
 147   unsigned long num = (unsigned) -1;
 148   Atom *state;
 149   if (! _xatom->getValue(_window, XAtom::net_wm_state, XAtom::atom,
 150                          num, &state))
 151     return;
 152   for (unsigned long i = 0; i < num; ++i) {
 153     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_maximized_vert))
 154       _max_vert = true;
 155     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_maximized_horz))
 156       _max_horz = true;
 157     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_shaded))
 158       _shaded = true;
 159     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_hidden))
 160       _iconic = true;
 161   }
 162
 163   delete [] state;
 164 }
 165
 166
 167 void XWindow::updateDesktop() {
 168   if (! _xatom->getValue(_window, XAtom::net_wm_desktop, XAtom::cardinal,
 169                          static_cast<unsigned long>(_desktop)))
 170     _desktop = 0;
 171 }
 172
 173
 174 void XWindow::updateTitle() {
 175   _title = "";
 176
 177   // try netwm
 178   if (! _xatom->getValue(_window, XAtom::net_wm_name, XAtom::utf8, _title)) {
 179     // try old x stuff
 180     _xatom->getValue(_window, XAtom::wm_name, XAtom::ansi, _title);
 181   }
 182
 183   if (_title.empty())
 184     _title = "Unnamed";
 185 }
 186
 187
 188 void XWindow::updateClass() {
 189   // set the defaults
 190   _app_name = _app_class = "";
 191
 192   XAtom::StringVect v;
 193   unsigned long num = 2;
 194
 195   if (! _xatom->getValue(_window, XAtom::wm_class, XAtom::ansi, num, v))
 196     return;
 197
 198   if (num > 0) _app_name = v[0];
 199   if (num > 1) _app_class = v[1];
 200 }
 201
 202
 203 void XWindow::processEvent(const XEvent &e) {
 204   assert(e.xany.window == _window);
 205
 206   switch (e.type) {
 207   case ConfigureNotify:
 208     updateDimentions();
 209     break;
 210   case PropertyNotify:
 211     if (e.xproperty.atom == XA_WM_NORMAL_HINTS)
 212       updateNormalHints();
 213     else if (e.xproperty.atom == XA_WM_HINTS)
 214       updateWMHints();
 215     else if (e.xproperty.atom == _xatom->getAtom(XAtom::blackbox_attributes))
 216       updateBlackboxAttributes();
 217     else if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_state))
 218       updateState();
 219     else if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_desktop))
 220       updateDesktop();
 221     else if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_name) ||
 222              e.xproperty.atom == _xatom->getAtom(XAtom::wm_name))
 223       updateTitle();
 224     else if (e.xproperty.atom == _xatom->getAtom(XAtom::wm_class))
 225       updateClass();
 226     break;
 227   case DestroyNotify:
 228   case UnmapNotify:
 229     _unmapped = true;
 230     break;
 231   }
 232 }
 233
 234
 235 void XWindow::shade(const bool sh) const {
 236   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 237                             _window, (sh ? 1 : 0),
 238                             _xatom->getAtom(XAtom::net_wm_state_shaded));
 239 }
 240
 241
 242 void XWindow::close() const {
 243   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_close_window,
 244                             _window);
 245 }
 246
 247
 248 void XWindow::raise() const {
 249   XRaiseWindow(_epist->getXDisplay(), _window);
 250 }
 251
 252
 253 void XWindow::lower() const {
 254   XLowerWindow(_epist->getXDisplay(), _window);
 255 }
 256
 257
 258 void XWindow::iconify() const {
 259   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::wm_change_state,
 260                             _window, IconicState);
 261 }
 262
 263
 264 void XWindow::focus(bool raise) const {
 265   // this will cause the window to be uniconified also
 266
 267   if (raise) {
 268     _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_active_window,
 269                               _window);
 270   } else {
 271     XSetInputFocus(_epist->getXDisplay(), _window, None, CurrentTime);
 272   }
 273 }
 274
 275
 276 void XWindow::sendTo(unsigned int dest) const {
 277   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_wm_desktop,
 278                             _window, dest);
 279 }
 280
 281
 282 void XWindow::move(int x, int y) const {
 283   // get the window's decoration sizes (margins)
 284   Strut margins;
 285   Window win = _window, parent, root, last = None;
 286   Window *children = 0;
 287   unsigned int nchildren;
 288   XWindowAttributes wattr;
 289
 290   while (XQueryTree(_epist->getXDisplay(), win, &root, &parent, &children,
 291                     &nchildren)) {
 292     if (children && nchildren > 0)
 293       XFree(children); // don't care about the children
 294
 295     if (! parent) // no parent!?
 296       return;
 297
 298     // if the parent window is the root window, stop here
 299     if (parent == root)
 300       break;
 301
 302     last = win;
 303     win = parent;
 304   }
 305
 306   if (! (XTranslateCoordinates(_epist->getXDisplay(), last, win, 0, 0,
 307                                (int *) &margins.left,
 308                                (int *) &margins.top,
 309                                &parent) &&
 310          XGetWindowAttributes(_epist->getXDisplay(), win, &wattr)))
 311     return;
 312
 313   margins.right = wattr.width - _rect.width() - margins.left;
 314   margins.bottom = wattr.height - _rect.height() - margins.top;
 315
 316   margins.left += wattr.border_width;
 317   margins.right += wattr.border_width;
 318   margins.top += wattr.border_width;
 319   margins.bottom += wattr.border_width;
 320
 321   // this makes things work. why? i don't know. but you need them.
 322   margins.right -= 2;
 323   margins.bottom -= 2;
 324
 325   // find the frame's reference position based on the window's gravity
 326   switch (_gravity) {
 327   case NorthWestGravity:
 328     x -= margins.left;
 329     y -= margins.top;
 330     break;
 331   case NorthGravity:
 332     x += (margins.left + margins.right) / 2;
 333     y -= margins.top;
 334     break;
 335   case NorthEastGravity:
 336     x += margins.right;
 337     y -= margins.top;
 338   case WestGravity:
 339     x -= margins.left;
 340     y += (margins.top + margins.bottom) / 2;
 341     break;
 342   case CenterGravity:
 343     x += (margins.left + margins.right) / 2;
 344     y += (margins.top + margins.bottom) / 2;
 345     break;
 346   case EastGravity:
 347     x += margins.right;
 348     y += (margins.top + margins.bottom) / 2;
 349   case SouthWestGravity:
 350     x -= margins.left;
 351     y += margins.bottom;
 352     break;
 353   case SouthGravity:
 354     x += (margins.left + margins.right) / 2;
 355     y += margins.bottom;
 356     break;
 357   case SouthEastGravity:
 358     x += margins.right;
 359     y += margins.bottom;
 360     break;
 361   default:
 362     break;
 363   }
 364
 365   XMoveWindow(_epist->getXDisplay(), _window, x, y);
 366 }
 367
 368
 369 void XWindow::resizeRel(int dwidth, int dheight) const {
 370   // resize in increments if requested by the window
 371   unsigned int width = _rect.width(), height = _rect.height();
 372
 373   unsigned int wdest = width + (dwidth * _inc_x) / _inc_x * _inc_x + _base_x;
 374   unsigned int hdest = height + (dheight * _inc_y) / _inc_y * _inc_y + _base_y;
 375
 376   XResizeWindow(_epist->getXDisplay(), _window, wdest, hdest);
 377 }
 378
 379
 380 void XWindow::resizeAbs(unsigned int width, unsigned int height) const {
 381   // resize in increments if requested by the window
 382
 383   unsigned int wdest = width / _inc_x * _inc_x + _base_x;
 384   unsigned int hdest = height / _inc_y * _inc_y + _base_y;
 385
 386   if (width > wdest) {
 387     while (width > wdest)
 388       wdest += _inc_x;
 389   } else {
 390     while (width < wdest)
 391       wdest -= _inc_x;
 392   }
 393   if (height > hdest) {
 394     while (height > hdest)
 395       hdest += _inc_y;
 396   } else {
 397     while (height < hdest)
 398       hdest -= _inc_y;
 399   }
 400
 401   XResizeWindow(_epist->getXDisplay(), _window, wdest, hdest);
 402 }
 403
 404
 405 void XWindow::toggleMaximize(Max max) const {
 406   switch (max) {
 407   case Max_Full:
 408     _xatom->
 409       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 410                         _window, (_max_vert == _max_horz ? 2 : 1),
 411                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz),
 412                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 413     break;
 414
 415   case Max_Horz:
 416     _xatom->
 417       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 418                         _window, 2,
 419                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz));
 420     break;
 421
 422   case Max_Vert:
 423     _xatom->
 424       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 425                         _window, 2,
 426                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 427     break;
 428
 429   case Max_None:
 430     assert(false);  // you should not do this. it is pointless and probly a bug
 431     break;
 432   }
 433 }
 434
 435
 436 void XWindow::maximize(Max max) const {
 437   switch (max) {
 438   case Max_None:
 439     _xatom->
 440       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 441                         _window, 0,
 442                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz),
 443                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 444     break;
 445
 446   case Max_Full:
 447     _xatom->
 448       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 449                         _window, 1,
 450                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz),
 451                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 452     break;
 453
 454   case Max_Horz:
 455     _xatom->
 456       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 457                         _window, 1,
 458                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz));
 459     break;
 460
 461   case Max_Vert:
 462     _xatom->
 463       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 464                         _window, 1,
 465                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 466     break;
 467   }
 468 }
 469
 470
 471 void XWindow::decorate(bool d) const {
 472   _xatom->sendClientMessage(_screen->rootWindow(),
 473                             XAtom::blackbox_change_attributes,
 474                             _window, AttribDecoration,
 475                             0, 0, 0, (d ? DecorNormal : DecorNone));
 476 }