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

   1 // -*- mode: C++; indent-tabs-mode: nil; -*-
   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 XWindow::XWindow(epist *epist, screen *screen, Window window)
  40   : _epist(epist), _screen(screen), _xatom(epist->xatom()), _window(window) {
  41
  42   _unmapped = false;
  43
  44   XSelectInput(_epist->getXDisplay(), _window,
  45                PropertyChangeMask | StructureNotifyMask);
  46
  47   updateBlackboxAttributes();
  48   updateNormalHints();
  49   updateWMHints();
  50   updateDimentions();
  51   updateState();
  52   updateDesktop();
  53   updateTitle();
  54   updateClass();
  55
  56   _epist->addWindow(this);
  57 }
  58
  59
  60 XWindow::~XWindow() {
  61   if (! _unmapped)
  62     XSelectInput(_epist->getXDisplay(), _window, None);
  63   _epist->removeWindow(this);
  64 }
  65
  66
  67 void XWindow::updateDimentions() {
  68   Window root, child;
  69   int x, y;
  70   unsigned int w, h, b, d;
  71
  72   if (XGetGeometry(_epist->getXDisplay(), _window, &root, &x, &y, &w, &h,
  73                      &b, &d) &&
  74       XTranslateCoordinates(_epist->getXDisplay(), _window, root, x, y,
  75                             &x, &y, &child))
  76     _rect.setRect(x, y, w, h);
  77   else
  78     _rect.setRect(0, 0, 1, 1);
  79 }
  80
  81
  82 void XWindow::updateBlackboxAttributes() {
  83   unsigned long *data;
  84   unsigned long num = PropBlackboxAttributesElements;
  85
  86   _decorated = true;
  87
  88   if (_xatom->getValue(_window,
  89                        XAtom::blackbox_attributes, XAtom::blackbox_attributes,
  90                        num, &data)) {
  91     if (num == PropBlackboxAttributesElements)
  92       if (data[0] & AttribDecoration)
  93         _decorated = (data[4] != DecorNone);
  94     delete data;
  95   }
  96 }
  97
  98
  99 void XWindow::updateNormalHints() {
 100   XSizeHints size;
 101   long ret;
 102
 103   // defaults
 104   _gravity = NorthWestGravity;
 105   _inc_x = _inc_y = 1;
 106   _base_x = _base_y = 0;
 107
 108   if (XGetWMNormalHints(_epist->getXDisplay(), _window, &size, &ret)) {
 109     if (size.flags & PWinGravity)
 110       _gravity = size.win_gravity;
 111     if (size.flags & PBaseSize) {
 112       _base_x = size.base_width;
 113       _base_y = size.base_height;
 114     }
 115     if (size.flags & PResizeInc) {
 116       _inc_x = size.width_inc;
 117       _inc_y = size.height_inc;
 118     }
 119   }
 120 }
 121
 122
 123 void XWindow::updateWMHints() {
 124   XWMHints *hints;
 125
 126   if ((hints = XGetWMHints(_epist->getXDisplay(), _window)) != NULL) {
 127     _can_focus = hints->input;
 128     XFree(hints);
 129   } else {
 130     // assume a window takes input if it doesnt specify
 131     _can_focus = True;
 132   }
 133 }
 134
 135
 136 void XWindow::updateState() {
 137   // set the defaults
 138   _shaded = _iconic = _max_vert = _max_horz = false;
 139
 140   unsigned long num = (unsigned) -1;
 141   Atom *state;
 142   if (! _xatom->getValue(_window, XAtom::net_wm_state, XAtom::atom,
 143                          num, &state))
 144     return;
 145   for (unsigned long i = 0; i < num; ++i) {
 146     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_maximized_vert))
 147       _max_vert = true;
 148     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_maximized_horz))
 149       _max_horz = true;
 150     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_shaded))
 151       _shaded = true;
 152     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_hidden))
 153       _iconic = true;
 154   }
 155
 156   delete [] state;
 157 }
 158
 159
 160 void XWindow::updateDesktop() {
 161   if (! _xatom->getValue(_window, XAtom::net_wm_desktop, XAtom::cardinal,
 162                          static_cast<unsigned long>(_desktop)))
 163     _desktop = 0;
 164 }
 165
 166
 167 void XWindow::updateTitle() {
 168   _title = "";
 169
 170   // try netwm
 171   if (! _xatom->getValue(_window, XAtom::net_wm_name, XAtom::utf8, _title)) {
 172     // try old x stuff
 173     _xatom->getValue(_window, XAtom::wm_name, XAtom::ansi, _title);
 174   }
 175
 176   if (_title.empty())
 177     _title = "Unnamed";
 178 }
 179
 180
 181 void XWindow::updateClass() {
 182   // set the defaults
 183   _app_name = _app_class = "";
 184
 185   XAtom::StringVect v;
 186   unsigned long num = 2;
 187
 188   if (! _xatom->getValue(_window, XAtom::wm_class, XAtom::ansi, num, v))
 189     return;
 190
 191   if (num > 0) _app_name = v[0];
 192   if (num > 1) _app_class = v[1];
 193 }
 194
 195
 196 void XWindow::processEvent(const XEvent &e) {
 197   assert(e.xany.window == _window);
 198
 199   switch (e.type) {
 200   case ConfigureNotify:
 201     updateDimentions();
 202     break;
 203   case PropertyNotify:
 204     if (e.xproperty.atom == XA_WM_NORMAL_HINTS)
 205       updateNormalHints();
 206     if (e.xproperty.atom == XA_WM_HINTS)
 207       updateWMHints();
 208     else if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_state))
 209       updateState();
 210     else if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_desktop))
 211       updateDesktop();
 212     else if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_name) ||
 213              e.xproperty.atom == _xatom->getAtom(XAtom::wm_name))
 214       updateTitle();
 215     else if (e.xproperty.atom == _xatom->getAtom(XAtom::wm_class))
 216       updateClass();
 217     break;
 218   case DestroyNotify:
 219   case UnmapNotify:
 220     _unmapped = true;
 221     break;
 222   }
 223 }
 224
 225
 226 void XWindow::shade(const bool sh) const {
 227   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 228                             _window, (sh ? 1 : 0),
 229                             _xatom->getAtom(XAtom::net_wm_state_shaded));
 230 }
 231
 232
 233 void XWindow::close() const {
 234   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_close_window,
 235                             _window);
 236 }
 237
 238
 239 void XWindow::raise() const {
 240   XRaiseWindow(_epist->getXDisplay(), _window);
 241 }
 242
 243
 244 void XWindow::lower() const {
 245   XLowerWindow(_epist->getXDisplay(), _window);
 246 }
 247
 248
 249 void XWindow::iconify() const {
 250   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::wm_change_state,
 251                             _window, IconicState);
 252 }
 253
 254
 255 void XWindow::focus() const {
 256   // this will cause the window to be uniconified also
 257   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_active_window,
 258                             _window);
 259
 260   //XSetInputFocus(_epist->getXDisplay(), _window, None, CurrentTime);
 261 }
 262
 263
 264 void XWindow::sendTo(unsigned int dest) const {
 265   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_wm_desktop,
 266                             _window, dest);
 267 }
 268
 269
 270 void XWindow::move(int x, int y) const {
 271   // get the window's decoration sizes (margins)
 272   Strut margins;
 273   Window win = _window, parent, root, last = None;
 274   Window *children = 0;
 275   unsigned int nchildren;
 276   XWindowAttributes wattr;
 277
 278   while (XQueryTree(_epist->getXDisplay(), win, &root, &parent, &children,
 279                     &nchildren)) {
 280     if (children && nchildren > 0)
 281       XFree(children); // don't care about the children
 282
 283     if (! parent) // no parent!?
 284       return;
 285
 286     // if the parent window is the root window, stop here
 287     if (parent == root)
 288       break;
 289
 290     last = win;
 291     win = parent;
 292   }
 293
 294   if (! (XTranslateCoordinates(_epist->getXDisplay(), last, win, 0, 0,
 295                                (int *) &margins.left,
 296                                (int *) &margins.top,
 297                                &parent) &&
 298          XGetWindowAttributes(_epist->getXDisplay(), win, &wattr)))
 299     return;
 300
 301   margins.right = wattr.width - _rect.width() - margins.left;
 302   margins.bottom = wattr.height - _rect.height() - margins.top;
 303
 304   margins.left += wattr.border_width;
 305   margins.right += wattr.border_width;
 306   margins.top += wattr.border_width;
 307   margins.bottom += wattr.border_width;
 308
 309   // this makes things work. why? i don't know. but you need them.
 310   margins.right -= 2;
 311   margins.bottom -= 2;
 312
 313   // find the frame's reference position based on the window's gravity
 314   switch (_gravity) {
 315   case NorthWestGravity:
 316     x -= margins.left;
 317     y -= margins.top;
 318     break;
 319   case NorthGravity:
 320     x += (margins.left + margins.right) / 2;
 321     y -= margins.top;
 322     break;
 323   case NorthEastGravity:
 324     x += margins.right;
 325     y -= margins.top;
 326   case WestGravity:
 327     x -= margins.left;
 328     y += (margins.top + margins.bottom) / 2;
 329     break;
 330   case CenterGravity:
 331     x += (margins.left + margins.right) / 2;
 332     y += (margins.top + margins.bottom) / 2;
 333     break;
 334   case EastGravity:
 335     x += margins.right;
 336     y += (margins.top + margins.bottom) / 2;
 337   case SouthWestGravity:
 338     x -= margins.left;
 339     y += margins.bottom;
 340     break;
 341   case SouthGravity:
 342     x += (margins.left + margins.right) / 2;
 343     y += margins.bottom;
 344     break;
 345   case SouthEastGravity:
 346     x += margins.right;
 347     y += margins.bottom;
 348     break;
 349   default:
 350     break;
 351   }
 352
 353   XMoveWindow(_epist->getXDisplay(), _window, x, y);
 354 }
 355
 356
 357 void XWindow::resizeRel(int dwidth, int dheight) const {
 358   // resize in increments if requested by the window
 359   unsigned int width = _rect.width(), height = _rect.height();
 360
 361   unsigned int wdest = width + (dwidth * _inc_x) / _inc_x * _inc_x + _base_x;
 362   unsigned int hdest = height + (dheight * _inc_y) / _inc_y * _inc_y + _base_y;
 363
 364   XResizeWindow(_epist->getXDisplay(), _window, wdest, hdest);
 365 }
 366
 367
 368 void XWindow::resizeAbs(unsigned int width, unsigned int height) const {
 369   // resize in increments if requested by the window
 370
 371   unsigned int wdest = width / _inc_x * _inc_x + _base_x;
 372   unsigned int hdest = height / _inc_y * _inc_y + _base_y;
 373
 374   if (width > wdest) {
 375     while (width > wdest)
 376       wdest += _inc_x;
 377   } else {
 378     while (width < wdest)
 379       wdest -= _inc_x;
 380   }
 381   if (height > hdest) {
 382     while (height > hdest)
 383       hdest += _inc_y;
 384   } else {
 385     while (height < hdest)
 386       hdest -= _inc_y;
 387   }
 388
 389   XResizeWindow(_epist->getXDisplay(), _window, wdest, hdest);
 390 }
 391
 392
 393 void XWindow::toggleMaximize(Max max) const {
 394   switch (max) {
 395   case Max_Full:
 396     _xatom->
 397       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 398                         _window, (_max_vert == _max_horz ? 2 : 1),
 399                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz),
 400                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 401     break;
 402
 403   case Max_Horz:
 404     _xatom->
 405       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 406                         _window, 2,
 407                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz));
 408     break;
 409
 410   case Max_Vert:
 411     _xatom->
 412       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 413                         _window, 2,
 414                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 415     break;
 416
 417   case Max_None:
 418     assert(false);  // you should not do this. it is pointless and probly a bug
 419     break;
 420   }
 421 }
 422
 423
 424 void XWindow::maximize(Max max) const {
 425   switch (max) {
 426   case Max_None:
 427     _xatom->
 428       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 429                         _window, 0,
 430                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz),
 431                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 432     break;
 433
 434   case Max_Full:
 435     _xatom->
 436       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 437                         _window, 1,
 438                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz),
 439                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 440     break;
 441
 442   case Max_Horz:
 443     _xatom->
 444       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 445                         _window, 1,
 446                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz));
 447     break;
 448
 449   case Max_Vert:
 450     _xatom->
 451       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 452                         _window, 1,
 453                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 454     break;
 455   }
 456 }
 457
 458
 459 void XWindow::decorate(bool d) const {
 460   _xatom->sendClientMessage(_screen->rootWindow(),
 461                             XAtom::blackbox_change_attributes,
 462                             _window, AttribDecoration,
 463                             0, 0, 0, (d ? DecorNormal : DecorNone));
 464 }