util/epist/epist.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; -*-
   2 // epist.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 extern "C" {
  28 #ifdef    HAVE_UNISTD_H
  29 #  include <sys/types.h>
  30 #  include <unistd.h>
  31 #endif // HAVE_UNISTD_H
  32
  33 #ifdef    HAVE_STDLIB_H
  34 #  include <stdlib.h>
  35 #endif // HAVE_STDLIB_H
  36
  37 #ifdef    HAVE_SIGNAL_H
  38 #  include <signal.h>
  39 #endif // HAVE_SIGNAL_H
  40
  41 #ifdef    HAVE_LIBGEN_H
  42 #  include <libgen.h>
  43 #endif // HAVE_LIBGEN_H
  44 }
  45
  46 #include <iostream>
  47 #include <string>
  48
  49 using std::cout;
  50 using std::endl;
  51 using std::string;
  52
  53 #include "epist.hh"
  54 #include "screen.hh"
  55 #include "window.hh"
  56 #include "../../src/XAtom.hh"
  57
  58
  59 epist::epist(char **argv, char *dpy_name, char *rc_file)
  60   : BaseDisplay(argv[0], dpy_name) {
  61
  62   _argv = argv;
  63
  64   if (rc_file)
  65     _rc_file = rc_file;
  66   else
  67     _rc_file = expandTilde("~/.openbox/epistrc");
  68
  69   _xatom = new XAtom(getXDisplay());
  70
  71   for (unsigned int i = 0; i < getNumberOfScreens(); ++i) {
  72     screen *s = new screen(this, i);
  73     if (s->managed())
  74       _screens.push_back(s);
  75   }
  76   if (_screens.empty()) {
  77     cout << "No compatible window manager found on any screens. Aborting.\n";
  78     ::exit(1);
  79   }
  80
  81   _actions.push_back(Action(Action::nextWorkspace,
  82                             XKeysymToKeycode(getXDisplay(),
  83                                              XStringToKeysym("Tab")),
  84                             ControlMask));
  85   _actions.push_back(Action(Action::prevWorkspace,
  86                            XKeysymToKeycode(getXDisplay(),
  87                                              XStringToKeysym("Tab")),
  88                            ControlMask | ShiftMask));
  89   _actions.push_back(Action(Action::toggleshade,
  90                             XKeysymToKeycode(getXDisplay(),
  91                                              XStringToKeysym("F5")),
  92                             Mod1Mask));
  93   _actions.push_back(Action(Action::close,
  94                             XKeysymToKeycode(getXDisplay(),
  95                                              XStringToKeysym("F4")),
  96                             Mod1Mask));
  97   _actions.push_back(Action(Action::nextWindow,
  98                             XKeysymToKeycode(getXDisplay(),
  99                                              XStringToKeysym("Tab")),
 100                             Mod1Mask));
 101   _actions.push_back(Action(Action::prevWindow,
 102                            XKeysymToKeycode(getXDisplay(),
 103                                              XStringToKeysym("Tab")),
 104                            Mod1Mask | ShiftMask));
 105   _actions.push_back(Action(Action::nextWindowOnAllWorkspaces,
 106                             XKeysymToKeycode(getXDisplay(),
 107                                              XStringToKeysym("Tab")),
 108                             Mod1Mask | ControlMask));
 109   _actions.push_back(Action(Action::prevWindowOnAllWorkspaces,
 110                            XKeysymToKeycode(getXDisplay(),
 111                                              XStringToKeysym("Tab")),
 112                            Mod1Mask | ShiftMask | ControlMask));
 113   _actions.push_back(Action(Action::raise,
 114                            XKeysymToKeycode(getXDisplay(),
 115                                              XStringToKeysym("Up")),
 116                            Mod1Mask));
 117   _actions.push_back(Action(Action::lower,
 118                            XKeysymToKeycode(getXDisplay(),
 119                                              XStringToKeysym("Down")),
 120                            Mod1Mask));
 121   _actions.push_back(Action(Action::moveWindowUp,
 122                            XKeysymToKeycode(getXDisplay(),
 123                                              XStringToKeysym("Up")),
 124                            Mod1Mask | ControlMask, 1));
 125   _actions.push_back(Action(Action::moveWindowDown,
 126                            XKeysymToKeycode(getXDisplay(),
 127                                              XStringToKeysym("Down")),
 128                            Mod1Mask | ControlMask, 1));
 129   _actions.push_back(Action(Action::moveWindowLeft,
 130                            XKeysymToKeycode(getXDisplay(),
 131                                              XStringToKeysym("Left")),
 132                            Mod1Mask | ControlMask, 1));
 133   _actions.push_back(Action(Action::moveWindowRight,
 134                            XKeysymToKeycode(getXDisplay(),
 135                                              XStringToKeysym("Right")),
 136                            Mod1Mask | ControlMask, 1));
 137   _actions.push_back(Action(Action::resizeWindowHeight,
 138                            XKeysymToKeycode(getXDisplay(),
 139                                              XStringToKeysym("Up")),
 140                            ShiftMask | Mod1Mask | ControlMask, -1));
 141   _actions.push_back(Action(Action::resizeWindowHeight,
 142                            XKeysymToKeycode(getXDisplay(),
 143                                              XStringToKeysym("Down")),
 144                            ShiftMask | Mod1Mask | ControlMask, 1));
 145   _actions.push_back(Action(Action::resizeWindowWidth,
 146                            XKeysymToKeycode(getXDisplay(),
 147                                              XStringToKeysym("Left")),
 148                            ShiftMask | Mod1Mask | ControlMask, -1));
 149   _actions.push_back(Action(Action::resizeWindowWidth,
 150                            XKeysymToKeycode(getXDisplay(),
 151                                              XStringToKeysym("Right")),
 152                            ShiftMask | Mod1Mask | ControlMask, 1));
 153   _actions.push_back(Action(Action::iconify,
 154                            XKeysymToKeycode(getXDisplay(),
 155                                              XStringToKeysym("I")),
 156                            Mod1Mask | ControlMask));
 157   _actions.push_back(Action(Action::toggleomnipresent,
 158                            XKeysymToKeycode(getXDisplay(),
 159                                              XStringToKeysym("O")),
 160                            Mod1Mask | ControlMask));
 161   _actions.push_back(Action(Action::toggleMaximizeHorizontal,
 162                            XKeysymToKeycode(getXDisplay(),
 163                                              XStringToKeysym("X")),
 164                            ShiftMask | Mod1Mask));
 165   _actions.push_back(Action(Action::toggleMaximizeVertical,
 166                            XKeysymToKeycode(getXDisplay(),
 167                                              XStringToKeysym("X")),
 168                            ShiftMask | ControlMask));
 169   _actions.push_back(Action(Action::toggleMaximizeFull,
 170                            XKeysymToKeycode(getXDisplay(),
 171                                              XStringToKeysym("X")),
 172                            Mod1Mask | ControlMask));
 173   _actions.push_back(Action(Action::changeWorkspace,
 174                            XKeysymToKeycode(getXDisplay(),
 175                                              XStringToKeysym("1")),
 176                            Mod1Mask | ControlMask, 0));
 177   _actions.push_back(Action(Action::changeWorkspace,
 178                            XKeysymToKeycode(getXDisplay(),
 179                                              XStringToKeysym("2")),
 180                            Mod1Mask | ControlMask, 1));
 181   _actions.push_back(Action(Action::changeWorkspace,
 182                            XKeysymToKeycode(getXDisplay(),
 183                                              XStringToKeysym("3")),
 184                            Mod1Mask | ControlMask, 2));
 185   _actions.push_back(Action(Action::changeWorkspace,
 186                            XKeysymToKeycode(getXDisplay(),
 187                                              XStringToKeysym("4")),
 188                            Mod1Mask | ControlMask, 3));
 189   _actions.push_back(Action(Action::sendToWorkspace,
 190                            XKeysymToKeycode(getXDisplay(),
 191                                              XStringToKeysym("1")),
 192                            Mod1Mask | ControlMask | ShiftMask, 0));
 193   _actions.push_back(Action(Action::sendToWorkspace,
 194                            XKeysymToKeycode(getXDisplay(),
 195                                              XStringToKeysym("2")),
 196                            Mod1Mask | ControlMask | ShiftMask, 1));
 197   _actions.push_back(Action(Action::sendToWorkspace,
 198                            XKeysymToKeycode(getXDisplay(),
 199                                              XStringToKeysym("3")),
 200                            Mod1Mask | ControlMask | ShiftMask, 2));
 201   _actions.push_back(Action(Action::sendToWorkspace,
 202                            XKeysymToKeycode(getXDisplay(),
 203                                              XStringToKeysym("4")),
 204                            Mod1Mask | ControlMask | ShiftMask, 3));
 205   _actions.push_back(Action(Action::execute,
 206                            XKeysymToKeycode(getXDisplay(),
 207                                              XStringToKeysym("space")),
 208                            Mod1Mask, "rxvt"));
 209   activateGrabs();
 210 }
 211
 212
 213 epist::~epist() {
 214   delete _xatom;
 215 }
 216
 217 void epist::activateGrabs() {
 218
 219   ScreenList::const_iterator scrit, scrend = _screens.end();
 220
 221   for (scrit = _screens.begin(); scrit != scrend; ++scrit) {
 222     ActionList::const_iterator ait, end = _actions.end();
 223
 224     for(ait = _actions.begin(); ait != end; ++ait) {
 225       XGrabKey(getXDisplay(), ait->keycode(), ait->modifierMask(),
 226                (*scrit)->rootWindow(), False, GrabModeAsync, GrabModeAsync);
 227     }
 228   }
 229 }
 230
 231
 232 bool epist::handleSignal(int sig) {
 233   switch (sig) {
 234   case SIGHUP:
 235     cout << "epist: Restarting on request.\n";
 236     execvp(_argv[0], _argv);
 237     execvp(basename(_argv[0]), _argv);
 238     return false;  // this should be unreachable
 239
 240   case SIGTERM:
 241   case SIGINT:
 242   case SIGPIPE:
 243     shutdown();
 244     return true;
 245   }
 246
 247   return false;
 248 }
 249
 250
 251 void epist::process_event(XEvent *e) {
 252   Window root;
 253
 254   if (e->xany.type == KeyPress)
 255     root = e->xkey.root;
 256   else
 257     root = e->xany.window;
 258
 259   ScreenList::const_iterator it, end = _screens.end();
 260   for (it = _screens.begin(); it != end; ++it) {
 261     if ((*it)->rootWindow() == root) {
 262       (*it)->processEvent(*e);
 263       return;
 264     }
 265   }
 266
 267   // wasnt a root window, try for client windows
 268   XWindow *w = findWindow(e->xany.window);
 269   if (w) w->processEvent(*e);
 270 }
 271
 272
 273 void epist::addWindow(XWindow *window) {
 274   _windows.insert(WindowLookupPair(window->window(), window));
 275 }
 276
 277
 278 void epist::removeWindow(XWindow *window) {
 279   _windows.erase(window->window());
 280 }
 281
 282
 283 XWindow *epist::findWindow(Window window) const {
 284   WindowLookup::const_iterator it = _windows.find(window);
 285   if (it != _windows.end())
 286     return it->second;
 287
 288   return 0;
 289 }