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

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