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   screen *s = new screen(this, DefaultScreen(getXDisplay()));
  72   if (s->managed())
  73     _screens.push_back(s);
  74   if (_screens.empty()) {
  75     cout << "No compatible window manager found on any screens. Aborting.\n";
  76     ::exit(1);
  77   }
  78
  79   _actions.push_back(Action(Action::nextWorkspace,
  80                             XKeysymToKeycode(getXDisplay(),
  81                                              XStringToKeysym("Tab")),
  82                             ControlMask));
  83   _actions.push_back(Action(Action::prevWorkspace,
  84                            XKeysymToKeycode(getXDisplay(),
  85                                              XStringToKeysym("Tab")),
  86                            ControlMask | ShiftMask));
  87   _actions.push_back(Action(Action::toggleshade,
  88                             XKeysymToKeycode(getXDisplay(),
  89                                              XStringToKeysym("F5")),
  90                             Mod1Mask));
  91   _actions.push_back(Action(Action::close,
  92                             XKeysymToKeycode(getXDisplay(),
  93                                              XStringToKeysym("F4")),
  94                             Mod1Mask));
  95   _actions.push_back(Action(Action::nextWindow,
  96                             XKeysymToKeycode(getXDisplay(),
  97                                              XStringToKeysym("Tab")),
  98                             Mod1Mask));
  99   _actions.push_back(Action(Action::prevWindow,
 100                            XKeysymToKeycode(getXDisplay(),
 101                                              XStringToKeysym("Tab")),
 102                            Mod1Mask | ShiftMask));
 103   activateGrabs();
 104 }
 105
 106
 107 epist::~epist() {
 108   delete _xatom;
 109 }
 110
 111 void epist::activateGrabs() {
 112
 113   ScreenList::const_iterator scrit, scrend = _screens.end();
 114
 115   for (scrit = _screens.begin(); scrit != scrend; ++scrit) {
 116     ActionList::const_iterator ait, end = _actions.end();
 117
 118     for(ait = _actions.begin(); ait != end; ++ait) {
 119       XGrabKey(getXDisplay(), ait->keycode(), ait->modifierMask(),
 120                (*scrit)->rootWindow(), False, GrabModeAsync, GrabModeAsync);
 121     }
 122   }
 123 }
 124
 125
 126 bool epist::handleSignal(int sig) {
 127   switch (sig) {
 128   case SIGHUP:
 129     cout << "epist: Restarting on request.\n";
 130     execvp(_argv[0], _argv);
 131     execvp(basename(_argv[0]), _argv);
 132     return false;  // this should be unreachable
 133
 134   case SIGTERM:
 135   case SIGINT:
 136   case SIGPIPE:
 137     shutdown();
 138     return true;
 139   }
 140
 141   return false;
 142 }
 143
 144
 145 void epist::process_event(XEvent *e) {
 146   Window root;
 147
 148   if (e->xany.type == KeyPress)
 149     root = e->xkey.root;
 150   else
 151     root = e->xany.window;
 152
 153   ScreenList::const_iterator it, end = _screens.end();
 154   for (it = _screens.begin(); it != end; ++it) {
 155     if ((*it)->rootWindow() == root) {
 156       (*it)->processEvent(*e);
 157       return;
 158     }
 159   }
 160
 161   // wasnt a root window, try for client windows
 162   XWindow *w = findWindow(e->xany.window);
 163   if (w) w->processEvent(*e);
 164 }
 165
 166
 167 void epist::addWindow(XWindow *window) {
 168   _windows.insert(WindowLookupPair(window->window(), window));
 169 }
 170
 171
 172 void epist::removeWindow(XWindow *window) {
 173   _windows.erase(window->window());
 174 }
 175
 176
 177 XWindow *epist::findWindow(Window window) const {
 178   WindowLookup::const_iterator it = _windows.find(window);
 179   if (it != _windows.end())
 180     return it->second;
 181
 182   return 0;
 183 }