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