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   updateState();
  47   updateDesktop();
  48   updateTitle();
  49   updateClass();
  50
  51   _epist->addWindow(this);
  52 }
  53
  54
  55 XWindow::~XWindow() {
  56   if (! _unmapped)
  57     XSelectInput(_epist->getXDisplay(), _window, None);
  58   _epist->removeWindow(this);
  59 }
  60
  61
  62 void XWindow::updateState() {
  63   // set the defaults
  64   _shaded = _iconic = _max_vert = _max_horz = false;
  65
  66   unsigned long num = (unsigned) -1;
  67   Atom *state;
  68   if (! _xatom->getValue(_window, XAtom::net_wm_state, XAtom::atom,
  69                          num, &state))
  70     return;
  71   for (unsigned long i = 0; i < num; ++i) {
  72     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_maximized_vert))
  73       _max_vert = true;
  74     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_maximized_horz))
  75       _max_horz = true;
  76     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_shaded))
  77       _shaded = true;
  78     if (state[i] == _xatom->getAtom(XAtom::net_wm_state_hidden))
  79       _iconic = true;
  80   }
  81
  82   delete [] state;
  83 }
  84
  85
  86 void XWindow::updateDesktop() {
  87   if (! _xatom->getValue(_window, XAtom::net_wm_desktop, XAtom::cardinal,
  88                          static_cast<unsigned long>(_desktop)))
  89     _desktop = 0;
  90 }
  91
  92
  93 void XWindow::updateTitle() {
  94   _title = "";
  95
  96   // try netwm
  97   if (! _xatom->getValue(_window, XAtom::net_wm_name, XAtom::utf8, _title)) {
  98     // try old x stuff
  99     _xatom->getValue(_window, XAtom::wm_name, XAtom::ansi, _title);
 100   }
 101
 102   if (_title.empty())
 103     _title = "Unnamed";
 104 }
 105
 106
 107 void XWindow::updateClass() {
 108   // set the defaults
 109   _app_name = _app_class = "";
 110
 111   XAtom::StringVect v;
 112   unsigned long num = 2;
 113
 114   if (! _xatom->getValue(_window, XAtom::wm_class, XAtom::ansi, num, v))
 115     return;
 116
 117   if (num > 0) _app_name = v[0];
 118   if (num > 1) _app_class = v[1];
 119 }
 120
 121
 122 void XWindow::processEvent(const XEvent &e) {
 123   assert(e.xany.window == _window);
 124
 125   switch (e.type) {
 126   case PropertyNotify:
 127     // a client window
 128     if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_state))
 129       updateState();
 130     else if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_desktop))
 131       updateDesktop();
 132     else if (e.xproperty.atom == _xatom->getAtom(XAtom::net_wm_name) ||
 133              e.xproperty.atom == _xatom->getAtom(XAtom::wm_name))
 134       updateTitle();
 135     else if (e.xproperty.atom == _xatom->getAtom(XAtom::wm_class))
 136       updateClass();
 137     break;
 138   case DestroyNotify:
 139   case UnmapNotify:
 140     _unmapped = true;
 141     break;
 142   }
 143 }
 144
 145
 146 void XWindow::findFramePosition(int &x, int &y) const {
 147   Window win = _window, parent, root, last = None;
 148   Window *children = 0;
 149   unsigned int nchildren;
 150   int gravity, top, bottom, left, right;
 151   XWindowAttributes wattr;
 152   XSizeHints size;
 153   long ret;
 154   unsigned int cwidth, cheight;
 155
 156   // get the location, size and gravity of the client window
 157   if (! XGetWindowAttributes(_epist->getXDisplay(), _window, &wattr)) return;
 158   cwidth = wattr.width;
 159   cheight = wattr.height;
 160   if (! XGetWMNormalHints(_epist->getXDisplay(), _window, &size, &ret)) return;
 161   if (size.flags & PWinGravity)
 162     gravity = size.win_gravity;
 163   else
 164     gravity = NorthWestGravity;
 165
 166   while (XQueryTree(_epist->getXDisplay(), win, &root, &parent, &children,
 167                     &nchildren)) {
 168     if (children && nchildren > 0)
 169       XFree(children); // don't care about the children
 170
 171     if (! parent) // no parent!?
 172       return;
 173
 174     // if the parent window is the root window, stop here
 175     if (parent == root)
 176       break;
 177
 178     last = win;
 179     win = parent;
 180   }
 181
 182   if (! (XTranslateCoordinates(_epist->getXDisplay(), last, win, 0, 0,
 183                                &left, &top, &parent) &&
 184          XGetWindowAttributes(_epist->getXDisplay(), win, &wattr)))
 185     return;
 186
 187   right = wattr.width - cwidth - left;
 188   bottom = wattr.height - cheight - top;
 189
 190   left += wattr.border_width;
 191   right += wattr.border_width;
 192   top += wattr.border_width;
 193   bottom += wattr.border_width;
 194
 195   // find the client's location
 196   x = wattr.x + left;
 197   y = wattr.y + top;
 198
 199   // this makes things work. why? i don't know. but you need them.
 200   right -= 2;
 201   bottom -= 2;
 202
 203   // find the frame's reference position based on the window's gravity
 204   switch (gravity) {
 205   case NorthWestGravity:
 206     x -= left;
 207     y -= top;
 208     break;
 209   case NorthGravity:
 210     x += (left + right) / 2;
 211     y -= top;
 212     break;
 213   case NorthEastGravity:
 214     x += right;
 215     y -= top;
 216   case WestGravity:
 217     x -= left;
 218     y += (top + bottom) / 2;
 219     break;
 220   case CenterGravity:
 221     x += (left + right) / 2;
 222     y += (top + bottom) / 2;
 223     break;
 224   case EastGravity:
 225     x += right;
 226     y += (top + bottom) / 2;
 227   case SouthWestGravity:
 228     x -= left;
 229     y += bottom;
 230     break;
 231   case SouthGravity:
 232     x += (left + right) / 2;
 233     y += bottom;
 234     break;
 235   case SouthEastGravity:
 236     x += right;
 237     y += bottom;
 238     break;
 239   default:
 240     break;
 241   }
 242 }
 243
 244
 245 void XWindow::shade(const bool sh) const {
 246   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_wm_state,
 247                             _window, (sh ? 1 : 0),
 248                             _xatom->getAtom(XAtom::net_wm_state_shaded));
 249 }
 250
 251
 252 void XWindow::close() const {
 253   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_close_window,
 254                             _window);
 255 }
 256
 257
 258 void XWindow::raise() const {
 259   XRaiseWindow(_epist->getXDisplay(), _window);
 260 }
 261
 262
 263 void XWindow::lower() const {
 264   XLowerWindow(_epist->getXDisplay(), _window);
 265 }
 266
 267
 268 void XWindow::iconify() const {
 269   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::wm_change_state,
 270                             _window, IconicState);
 271 }
 272
 273
 274 void XWindow::focus() const {
 275   // this will also unshade the window..
 276   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_active_window,
 277                             _window);
 278 }
 279
 280
 281 void XWindow::sendTo(unsigned int dest) const {
 282   _xatom->sendClientMessage(_screen->rootWindow(), XAtom::net_wm_desktop,
 283                             _window, dest);
 284 }
 285
 286
 287 void XWindow::move(int x, int y) const {
 288   int fx, fy;
 289   findFramePosition(fx, fy);
 290   XMoveWindow(_epist->getXDisplay(), _window, fx + x, fy + y);
 291 }