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   // assume a window takes input if it doesnt specify
 134   _can_focus = True;
 135
 136   if ((hints = XGetWMHints(_epist->getXDisplay(), _window)) != NULL) {
 137     if (hints->flags & InputHint)
 138       _can_focus = hints->input;
 139     XFree(hints);
 140   }
 141 }
 142
 143
 144 void XWindow::updateState() {
 145   // set the defaults
 146   _shaded = _iconic = _max_vert = _max_horz = false;
 147
 148   unsigned long num = (unsigned) -1;
 149   Atom *state;
 150   if (! _xatom->getValue(_window, XAtom::net_wm_state, XAtom::atom,
 151                          num, &state))
 152     return;
 153   for (unsigned long i = 0; i < num; ++i) {
 154     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_maximized_vert))
 155       _max_vert = true;
 156     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_maximized_horz))
 157       _max_horz = true;
 158     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_shaded))
 159       _shaded = true;
 160     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_hidden))
 161       _iconic = true;
 162   }
 163
 164   delete [] state;
 165 }
 166
 167
 168 void XWindow::updateDesktop() {
 169   if (! _xatom->getValue(_window, XAtom::net_wm_desktop, XAtom::cardinal,
 170                          static_cast<unsigned long>(_desktop)))
 171     _desktop = 0;
 172 }
 173
 174
 175 void XWindow::updateTitle() {
 176   _title = "";
 177
 178   // try netwm
 179   if (! _xatom->getValue(_window, XAtom::net_wm_name, XAtom::utf8, _title)) {
 180     // try old x stuff
 181     _xatom->getValue(_window, XAtom::wm_name, XAtom::ansi, _title);
 182   }
 183
 184   if (_title.empty())
 185     _title = "Unnamed";
 186 }
 187
 188
 189 void XWindow::updateClass() {
 190   // set the defaults
 191   _app_name = _app_class = "";
 192
 193   XAtom::StringVect v;
 194   unsigned long num = 2;
 195
 196   if (! _xatom->getValue(_window, XAtom::wm_class, XAtom::ansi, num, v))
 197     return;
 198
 199   if (num > 0) _app_name = v[0];
 200   if (num > 1) _app_class = v[1];
 201 }
 202
 203
 204 void XWindow::processEvent(const XEvent &e) {
 205   assert(e.xany.window == _window);
 206
 207   switch (e.type) {
 208   case ConfigureNotify:
 209     updateDimentions();
 210     break;
 211   case PropertyNotify:
 212     if (e.xproperty.atom == XA_WM_NORMAL_HINTS)
 213       updateNormalHints();
 214     else if (e.xproperty.atom == XA_WM_HINTS)
 215       updateWMHints();
 216     else if (e.xproperty.atom == _xatom->getAtom(XAtom::blackbox_attributes))
 217       updateBlackboxAttributes();
 218     else if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_state))
 219       updateState();
 220     else if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_desktop))
 221       updateDesktop();
 222     else if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_name) ||
 223              e.xproperty.atom == _xatom->getAtom(XAtom::wm_name))
 224       updateTitle();
 225     else if (e.xproperty.atom == _xatom->getAtom(XAtom::wm_class))
 226       updateClass();
 227     break;
 228   case DestroyNotify:
 229   case UnmapNotify:
 230     _unmapped = true;
 231     break;
 232   }
 233 }
 234
 235
 236 void XWindow::shade(const bool sh) const {
 237   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 238                             _window, (sh ? 1 : 0),
 239                             _xatom->getAtom(XAtom::net_wm_state_shaded));
 240 }
 241
 242
 243 void XWindow::close() const {
 244   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_close_window,
 245                             _window);
 246 }
 247
 248
 249 void XWindow::raise() const {
 250   XRaiseWindow(_epist->getXDisplay(), _window);
 251 }
 252
 253
 254 void XWindow::lower() const {
 255   XLowerWindow(_epist->getXDisplay(), _window);
 256 }
 257
 258
 259 void XWindow::iconify() const {
 260   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::wm_change_state,
 261                             _window, IconicState);
 262 }
 263
 264
 265 void XWindow::focus(bool raise) const {
 266   // this will cause the window to be uniconified also
 267
 268   if (raise) {
 269     _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_active_window,
 270                               _window);
 271   } else {
 272     XSetInputFocus(_epist->getXDisplay(), _window, None, CurrentTime);
 273   }
 274 }
 275
 276
 277 void XWindow::sendTo(unsigned int dest) const {
 278   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_wm_desktop,
 279                             _window, dest);
 280 }
 281
 282
 283 void XWindow::move(int x, int y) const {
 284   // get the window's decoration sizes (margins)
 285   Strut margins;
 286   Window win = _window, parent, root, last = None;
 287   Window *children = 0;
 288   unsigned int nchildren;
 289   XWindowAttributes wattr;
 290
 291   while (XQueryTree(_epist->getXDisplay(), win, &root, &parent, &children,
 292                     &nchildren)) {
 293     if (children && nchildren > 0)
 294       XFree(children); // don't care about the children
 295
 296     if (! parent) // no parent!?
 297       return;
 298
 299     // if the parent window is the root window, stop here
 300     if (parent == root)
 301       break;
 302
 303     last = win;
 304     win = parent;
 305   }
 306
 307   if (! (XTranslateCoordinates(_epist->getXDisplay(), last, win, 0, 0,
 308                                (int *) &margins.left,
 309                                (int *) &margins.top,
 310                                &parent) &&
 311          XGetWindowAttributes(_epist->getXDisplay(), win, &wattr)))
 312     return;
 313
 314   margins.right = wattr.width - _rect.width() - margins.left;
 315   margins.bottom = wattr.height - _rect.height() - margins.top;
 316
 317   margins.left += wattr.border_width;
 318   margins.right += wattr.border_width;
 319   margins.top += wattr.border_width;
 320   margins.bottom += wattr.border_width;
 321
 322   // this makes things work. why? i don't know. but you need them.
 323   margins.right -= 2;
 324   margins.bottom -= 2;
 325
 326   // find the frame's reference position based on the window's gravity
 327   switch (_gravity) {
 328   case NorthWestGravity:
 329     x -= margins.left;
 330     y -= margins.top;
 331     break;
 332   case NorthGravity:
 333     x += (margins.left + margins.right) / 2;
 334     y -= margins.top;
 335     break;
 336   case NorthEastGravity:
 337     x += margins.right;
 338     y -= margins.top;
 339   case WestGravity:
 340     x -= margins.left;
 341     y += (margins.top + margins.bottom) / 2;
 342     break;
 343   case CenterGravity:
 344     x += (margins.left + margins.right) / 2;
 345     y += (margins.top + margins.bottom) / 2;
 346     break;
 347   case EastGravity:
 348     x += margins.right;
 349     y += (margins.top + margins.bottom) / 2;
 350   case SouthWestGravity:
 351     x -= margins.left;
 352     y += margins.bottom;
 353     break;
 354   case SouthGravity:
 355     x += (margins.left + margins.right) / 2;
 356     y += margins.bottom;
 357     break;
 358   case SouthEastGravity:
 359     x += margins.right;
 360     y += margins.bottom;
 361     break;
 362   default:
 363     break;
 364   }
 365
 366   XMoveWindow(_epist->getXDisplay(), _window, x, y);
 367 }
 368
 369
 370 void XWindow::resizeRel(int dwidth, int dheight) const {
 371   // resize in increments if requested by the window
 372   unsigned int width = _rect.width(), height = _rect.height();
 373
 374   unsigned int wdest = width + (dwidth * _inc_x) / _inc_x * _inc_x + _base_x;
 375   unsigned int hdest = height + (dheight * _inc_y) / _inc_y * _inc_y + _base_y;
 376
 377   XResizeWindow(_epist->getXDisplay(), _window, wdest, hdest);
 378 }
 379
 380
 381 void XWindow::resizeAbs(unsigned int width, unsigned int height) const {
 382   // resize in increments if requested by the window
 383
 384   unsigned int wdest = width / _inc_x * _inc_x + _base_x;
 385   unsigned int hdest = height / _inc_y * _inc_y + _base_y;
 386
 387   if (width > wdest) {
 388     while (width > wdest)
 389       wdest += _inc_x;
 390   } else {
 391     while (width < wdest)
 392       wdest -= _inc_x;
 393   }
 394   if (height > hdest) {
 395     while (height > hdest)
 396       hdest += _inc_y;
 397   } else {
 398     while (height < hdest)
 399       hdest -= _inc_y;
 400   }
 401
 402   XResizeWindow(_epist->getXDisplay(), _window, wdest, hdest);
 403 }
 404
 405
 406 void XWindow::toggleMaximize(Max max) const {
 407   switch (max) {
 408   case Max_Full:
 409     _xatom->
 410       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 411                         _window, (_max_vert == _max_horz ? 2 : 1),
 412                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz),
 413                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 414     break;
 415
 416   case Max_Horz:
 417     _xatom->
 418       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 419                         _window, 2,
 420                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz));
 421     break;
 422
 423   case Max_Vert:
 424     _xatom->
 425       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 426                         _window, 2,
 427                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 428     break;
 429
 430   case Max_None:
 431     assert(false);  // you should not do this. it is pointless and probly a bug
 432     break;
 433   }
 434 }
 435
 436
 437 void XWindow::maximize(Max max) const {
 438   switch (max) {
 439   case Max_None:
 440     _xatom->
 441       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 442                         _window, 0,
 443                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz),
 444                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 445     break;
 446
 447   case Max_Full:
 448     _xatom->
 449       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 450                         _window, 1,
 451                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz),
 452                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 453     break;
 454
 455   case Max_Horz:
 456     _xatom->
 457       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 458                         _window, 1,
 459                         _xatom->getAtom(XAtom::net_wm_state_maximized_horz));
 460     break;
 461
 462   case Max_Vert:
 463     _xatom->
 464       sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 465                         _window, 1,
 466                         _xatom->getAtom(XAtom::net_wm_state_maximized_vert));
 467     break;
 468   }
 469 }
 470
 471
 472 void XWindow::decorate(bool d) const {
 473   _xatom->sendClientMessage(_screen->rootWindow(),
 474                             XAtom::blackbox_change_attributes,
 475                             _window, AttribDecoration,
 476                             0, 0, 0, (d ? DecorNormal : DecorNone));
 477 }