591 lines
16 KiB
C++
591 lines
16 KiB
C++
// -*- mode: C++; indent-tabs-mode: nil; -*-
|
|
// screen.cc for Epistophy - a key handler for NETWM/EWMH window managers.
|
|
// Copyright (c) 2002 - 2002 Ben Jansens <ben at orodu.net>
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the "Software"),
|
|
// to deal in the Software without restriction, including without limitation
|
|
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
// and/or sell copies of the Software, and to permit persons to whom the
|
|
// Software is furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
// DEALINGS IN THE SOFTWARE.
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "../../config.h"
|
|
#endif // HAVE_CONFIG_H
|
|
|
|
extern "C" {
|
|
#ifdef HAVE_STDIO_H
|
|
# include <stdio.h>
|
|
#endif // HAVE_STDIO_H
|
|
|
|
#ifdef HAVE_UNISTD_H
|
|
# include <sys/types.h>
|
|
# include <unistd.h>
|
|
#endif // HAVE_UNISTD_H
|
|
}
|
|
|
|
#include <iostream>
|
|
#include <string>
|
|
|
|
using std::cout;
|
|
using std::endl;
|
|
using std::hex;
|
|
using std::dec;
|
|
using std::string;
|
|
|
|
#include "../../src/BaseDisplay.hh"
|
|
#include "../../src/XAtom.hh"
|
|
#include "screen.hh"
|
|
#include "epist.hh"
|
|
|
|
|
|
screen::screen(epist *epist, int number)
|
|
: _clients(epist->clientsList()),
|
|
_active(epist->activeWindow()) {
|
|
_epist = epist;
|
|
_xatom = _epist->xatom();
|
|
_last_active = _clients.end();
|
|
_number = number;
|
|
_info = _epist->getScreenInfo(_number);
|
|
_root = _info->getRootWindow();
|
|
|
|
// find a window manager supporting NETWM, waiting for it to load if we must
|
|
int count = 20; // try for 20 seconds
|
|
_managed = false;
|
|
while (! (_epist->doShutdown() || _managed || count <= 0)) {
|
|
if (! (_managed = findSupportingWM()))
|
|
sleep(1);
|
|
--count;
|
|
}
|
|
if (_managed)
|
|
cout << "Found compatible window manager '" << _wm_name << "' for screen "
|
|
<< _number << ".\n";
|
|
else {
|
|
cout << "Unable to find a compatible window manager for screen " <<
|
|
_number << ".\n";
|
|
return;
|
|
}
|
|
|
|
XSelectInput(_epist->getXDisplay(), _root, PropertyChangeMask);
|
|
}
|
|
|
|
screen::~screen() {
|
|
if (_managed)
|
|
XSelectInput(_epist->getXDisplay(), _root, None);
|
|
}
|
|
|
|
|
|
bool screen::findSupportingWM() {
|
|
Window support_win;
|
|
if (! _xatom->getValue(_root, XAtom::net_supporting_wm_check, XAtom::window,
|
|
support_win) || support_win == None)
|
|
return false;
|
|
|
|
string title;
|
|
_xatom->getValue(support_win, XAtom::net_wm_name, XAtom::utf8, title);
|
|
_wm_name = title;
|
|
return true;
|
|
}
|
|
|
|
|
|
XWindow *screen::findWindow(const XEvent &e) const {
|
|
assert(_managed);
|
|
|
|
WindowList::const_iterator it, end = _clients.end();
|
|
for (it = _clients.begin(); it != end; ++it)
|
|
if (**it == e.xany.window)
|
|
break;
|
|
if(it == end)
|
|
return 0;
|
|
return *it;
|
|
}
|
|
|
|
|
|
void screen::processEvent(const XEvent &e) {
|
|
assert(_managed);
|
|
assert(e.xany.window == _root);
|
|
|
|
switch (e.type) {
|
|
case PropertyNotify:
|
|
// root window
|
|
if (e.xproperty.atom == _xatom->getAtom(XAtom::net_number_of_desktops))
|
|
updateNumDesktops();
|
|
if (e.xproperty.atom == _xatom->getAtom(XAtom::net_current_desktop))
|
|
updateActiveDesktop();
|
|
if (e.xproperty.atom == _xatom->getAtom(XAtom::net_active_window))
|
|
updateActiveWindow();
|
|
if (e.xproperty.atom == _xatom->getAtom(XAtom::net_client_list)) {
|
|
// catch any window unmaps first
|
|
XEvent ev;
|
|
if (XCheckTypedWindowEvent(_epist->getXDisplay(), e.xany.window,
|
|
DestroyNotify, &ev) ||
|
|
XCheckTypedWindowEvent(_epist->getXDisplay(), e.xany.window,
|
|
UnmapNotify, &ev)) {
|
|
processEvent(ev);
|
|
}
|
|
|
|
updateClientList();
|
|
}
|
|
break;
|
|
case KeyPress:
|
|
handleKeypress(e);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void screen::handleKeypress(const XEvent &e) {
|
|
int scrolllockMask, numlockMask;
|
|
|
|
ActionList::const_iterator it = _epist->actions().begin();
|
|
ActionList::const_iterator end = _epist->actions().end();
|
|
|
|
_epist->getLockModifiers(numlockMask, scrolllockMask);
|
|
|
|
for (; it != end; ++it) {
|
|
unsigned int state = e.xkey.state & ~(LockMask|scrolllockMask|numlockMask);
|
|
|
|
if (e.xkey.keycode == it->keycode() &&
|
|
state == it->modifierMask()) {
|
|
switch (it->type()) {
|
|
case Action::nextScreen:
|
|
_epist->cycleScreen(_number, true);
|
|
return;
|
|
|
|
case Action::prevScreen:
|
|
_epist->cycleScreen(_number, false);
|
|
return;
|
|
|
|
case Action::nextWorkspace:
|
|
cycleWorkspace(true);
|
|
return;
|
|
|
|
case Action::prevWorkspace:
|
|
cycleWorkspace(false);
|
|
return;
|
|
|
|
case Action::nextWindow:
|
|
cycleWindow(true);
|
|
return;
|
|
|
|
case Action::prevWindow:
|
|
cycleWindow(false);
|
|
return;
|
|
|
|
case Action::nextWindowOnAllWorkspaces:
|
|
cycleWindow(true, false, true);
|
|
return;
|
|
|
|
case Action::prevWindowOnAllWorkspaces:
|
|
cycleWindow(false, false, true);
|
|
return;
|
|
|
|
case Action::nextWindowOnAllScreens:
|
|
cycleWindow(true, true);
|
|
return;
|
|
|
|
case Action::prevWindowOnAllScreens:
|
|
cycleWindow(false, true);
|
|
return;
|
|
|
|
case Action::nextWindowOfClass:
|
|
cycleWindow(true, false, false, true, it->string());
|
|
return;
|
|
|
|
case Action::prevWindowOfClass:
|
|
cycleWindow(false, false, false, true, it->string());
|
|
return;
|
|
|
|
case Action::nextWindowOfClassOnAllWorkspaces:
|
|
cycleWindow(true, false, true, true, it->string());
|
|
return;
|
|
|
|
case Action::prevWindowOfClassOnAllWorkspaces:
|
|
cycleWindow(false, false, true, true, it->string());
|
|
return;
|
|
|
|
case Action::changeWorkspace:
|
|
changeWorkspace(it->number());
|
|
return;
|
|
|
|
case Action::execute:
|
|
execCommand(it->string());
|
|
return;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// these actions require an active window
|
|
if (_active != _clients.end()) {
|
|
XWindow *window = *_active;
|
|
|
|
switch (it->type()) {
|
|
case Action::iconify:
|
|
window->iconify();
|
|
return;
|
|
|
|
case Action::close:
|
|
window->close();
|
|
return;
|
|
|
|
case Action::raise:
|
|
window->raise();
|
|
return;
|
|
|
|
case Action::lower:
|
|
window->lower();
|
|
return;
|
|
|
|
case Action::sendToWorkspace:
|
|
window->sendTo(it->number());
|
|
return;
|
|
|
|
case Action::toggleomnipresent:
|
|
if (window->desktop() == 0xffffffff)
|
|
window->sendTo(_active_desktop);
|
|
else
|
|
window->sendTo(0xffffffff);
|
|
return;
|
|
|
|
case Action::moveWindowUp:
|
|
window->move(window->x(), window->y() - it->number());
|
|
return;
|
|
|
|
case Action::moveWindowDown:
|
|
window->move(window->x(), window->y() + it->number());
|
|
return;
|
|
|
|
case Action::moveWindowLeft:
|
|
window->move(window->x() - it->number(), window->y());
|
|
return;
|
|
|
|
case Action::moveWindowRight:
|
|
window->move(window->x() + it->number(), window->y());
|
|
return;
|
|
|
|
case Action::resizeWindowWidth:
|
|
window->resize(window->width() + it->number(), window->height());
|
|
return;
|
|
|
|
case Action::resizeWindowHeight:
|
|
window->resize(window->width(), window->height() + it->number());
|
|
return;
|
|
|
|
case Action::toggleshade:
|
|
window->shade(! window->shaded());
|
|
return;
|
|
|
|
case Action::toggleMaximizeHorizontal:
|
|
window->toggleMaximize(XWindow::Max_Horz);
|
|
return;
|
|
|
|
case Action::toggleMaximizeVertical:
|
|
window->toggleMaximize(XWindow::Max_Vert);
|
|
return;
|
|
|
|
case Action::toggleMaximizeFull:
|
|
window->toggleMaximize(XWindow::Max_Full);
|
|
return;
|
|
|
|
default:
|
|
assert(false); // unhandled action type!
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// do we want to add this window to our list?
|
|
bool screen::doAddWindow(Window window) const {
|
|
assert(_managed);
|
|
|
|
Atom type;
|
|
if (! _xatom->getValue(window, XAtom::net_wm_window_type, XAtom::atom,
|
|
type))
|
|
return True;
|
|
|
|
if (type == _xatom->getAtom(XAtom::net_wm_window_type_dock) ||
|
|
type == _xatom->getAtom(XAtom::net_wm_window_type_menu))
|
|
return False;
|
|
|
|
return True;
|
|
}
|
|
|
|
|
|
void screen::updateEverything() {
|
|
updateNumDesktops();
|
|
updateActiveDesktop();
|
|
updateClientList();
|
|
updateActiveWindow();
|
|
}
|
|
|
|
|
|
void screen::updateNumDesktops() {
|
|
assert(_managed);
|
|
|
|
if (! _xatom->getValue(_root, XAtom::net_number_of_desktops, XAtom::cardinal,
|
|
(unsigned long)_num_desktops))
|
|
_num_desktops = 1; // assume that there is at least 1 desktop!
|
|
}
|
|
|
|
|
|
void screen::updateActiveDesktop() {
|
|
assert(_managed);
|
|
|
|
if (! _xatom->getValue(_root, XAtom::net_current_desktop, XAtom::cardinal,
|
|
(unsigned long)_active_desktop))
|
|
_active_desktop = 0; // there must be at least one desktop, and it must
|
|
// be the current one
|
|
}
|
|
|
|
|
|
void screen::updateClientList() {
|
|
assert(_managed);
|
|
|
|
WindowList::iterator insert_point = _active;
|
|
if (insert_point != _clients.end())
|
|
++insert_point; // get to the item client the focused client
|
|
|
|
// get the client list from the root window
|
|
Window *rootclients = 0;
|
|
unsigned long num = (unsigned) -1;
|
|
if (! _xatom->getValue(_root, XAtom::net_client_list, XAtom::window, num,
|
|
&rootclients))
|
|
num = 0;
|
|
|
|
WindowList::iterator it;
|
|
const WindowList::iterator end = _clients.end();
|
|
unsigned long i;
|
|
|
|
// insert new clients after the active window
|
|
for (i = 0; i < num; ++i) {
|
|
for (it = _clients.begin(); it != end; ++it)
|
|
if (**it == rootclients[i])
|
|
break;
|
|
if (it == end) { // didn't already exist
|
|
if (doAddWindow(rootclients[i])) {
|
|
// cout << "Added window: 0x" << hex << rootclients[i] << dec << endl;
|
|
_clients.insert(insert_point, new XWindow(_epist, this,
|
|
rootclients[i]));
|
|
}
|
|
}
|
|
}
|
|
|
|
// remove clients that no longer exist (that belong to this screen)
|
|
for (it = _clients.begin(); it != end;) {
|
|
WindowList::iterator it2 = it;
|
|
++it;
|
|
|
|
// is on another screen?
|
|
if ((*it2)->getScreen() != this)
|
|
continue;
|
|
|
|
for (i = 0; i < num; ++i)
|
|
if (**it2 == rootclients[i])
|
|
break;
|
|
if (i == num) { // no longer exists
|
|
// cout << "Removed window: 0x" << hex << (*it2)->window() << dec << endl;
|
|
// watch for the active and last-active window
|
|
if (it2 == _active)
|
|
_active = _clients.end();
|
|
if (it2 == _last_active)
|
|
_last_active = _clients.end();
|
|
delete *it2;
|
|
_clients.erase(it2);
|
|
}
|
|
}
|
|
|
|
if (rootclients) delete [] rootclients;
|
|
}
|
|
|
|
|
|
const XWindow *screen::lastActiveWindow() const {
|
|
if (_last_active != _clients.end())
|
|
return *_last_active;
|
|
|
|
// find a window if one exists
|
|
WindowList::const_iterator it, end = _clients.end();
|
|
for (it = _clients.begin(); it != end; ++it)
|
|
if ((*it)->getScreen() == this && ! (*it)->iconic() &&
|
|
((*it)->desktop() == 0xffffffff || (*it)->desktop() == _active_desktop))
|
|
return *it;
|
|
|
|
// no windows on this screen
|
|
return 0;
|
|
}
|
|
|
|
|
|
void screen::updateActiveWindow() {
|
|
assert(_managed);
|
|
|
|
Window a = None;
|
|
_xatom->getValue(_root, XAtom::net_active_window, XAtom::window, a);
|
|
|
|
WindowList::iterator it, end = _clients.end();
|
|
for (it = _clients.begin(); it != end; ++it) {
|
|
if (**it == a) {
|
|
if ((*it)->getScreen() != this)
|
|
return;
|
|
break;
|
|
}
|
|
}
|
|
_active = it;
|
|
if (it != end)
|
|
_last_active = it;
|
|
|
|
/* cout << "Active window is now: ";
|
|
if (_active == _clients.end()) cout << "None\n";
|
|
else cout << "0x" << hex << (*_active)->window() << dec << endl;
|
|
*/
|
|
}
|
|
|
|
|
|
void screen::execCommand(const string &cmd) const {
|
|
pid_t pid;
|
|
if ((pid = fork()) == 0) {
|
|
extern char **environ;
|
|
|
|
char *const argv[] = {
|
|
"sh",
|
|
"-c",
|
|
const_cast<char *>(cmd.c_str()),
|
|
0
|
|
};
|
|
// make the command run on the correct screen
|
|
if (putenv(const_cast<char*>(_info->displayString().c_str()))) {
|
|
cout << "warning: couldn't set environment variable 'DISPLAY'\n";
|
|
perror("putenv()");
|
|
}
|
|
execve("/bin/sh", argv, environ);
|
|
exit(127);
|
|
} else if (pid == -1) {
|
|
cout << _epist->getApplicationName() <<
|
|
": Could not fork a process for executing a command\n";
|
|
}
|
|
}
|
|
|
|
|
|
void screen::cycleWindow(const bool forward, const bool allscreens,
|
|
const bool alldesktops, const bool sameclass,
|
|
const string &cn) const {
|
|
assert(_managed);
|
|
|
|
if (_clients.empty()) return;
|
|
|
|
string classname(cn);
|
|
if (sameclass && classname.empty() && _active != _clients.end())
|
|
classname = (*_active)->appClass();
|
|
|
|
WindowList::const_iterator target = _active,
|
|
begin = _clients.begin(),
|
|
end = _clients.end();
|
|
|
|
while (1) {
|
|
if (forward) {
|
|
if (target == end) {
|
|
target = begin;
|
|
} else {
|
|
++target;
|
|
if (target == end)
|
|
target = begin;
|
|
}
|
|
} else {
|
|
if (target == begin)
|
|
target = end;
|
|
--target;
|
|
}
|
|
|
|
// must be no window to focus
|
|
if (target == _active)
|
|
return;
|
|
|
|
// determine if this window is invalid for cycling to
|
|
const XWindow *t = *target;
|
|
if (t->iconic()) continue;
|
|
if (! allscreens && t->getScreen() != this) continue;
|
|
if (! alldesktops && ! (t->desktop() == _active_desktop ||
|
|
t->desktop() == 0xffffffff)) continue;
|
|
if (sameclass && ! classname.empty() &&
|
|
t->appClass() != classname) continue;
|
|
if (! t->canFocus()) continue;
|
|
|
|
// found a good window!
|
|
t->focus();
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
void screen::cycleWorkspace(const bool forward, const bool loop) const {
|
|
assert(_managed);
|
|
|
|
unsigned int destination = _active_desktop;
|
|
|
|
if (forward) {
|
|
if (destination < _num_desktops - 1)
|
|
++destination;
|
|
else if (loop)
|
|
destination = 0;
|
|
} else {
|
|
if (destination > 0)
|
|
--destination;
|
|
else if (loop)
|
|
destination = _num_desktops - 1;
|
|
}
|
|
|
|
if (destination != _active_desktop)
|
|
changeWorkspace(destination);
|
|
}
|
|
|
|
|
|
void screen::changeWorkspace(const int num) const {
|
|
assert(_managed);
|
|
|
|
_xatom->sendClientMessage(_root, XAtom::net_current_desktop, _root, num);
|
|
}
|
|
|
|
void screen::grabKey(const KeyCode keyCode, const int modifierMask) const {
|
|
|
|
Display *display = _epist->getXDisplay();
|
|
int numlockMask, scrolllockMask;
|
|
|
|
_epist->getLockModifiers(numlockMask, scrolllockMask);
|
|
|
|
XGrabKey(display, keyCode, modifierMask,
|
|
_root, True, GrabModeAsync, GrabModeAsync);
|
|
XGrabKey(display, keyCode,
|
|
modifierMask|LockMask,
|
|
_root, True, GrabModeAsync, GrabModeAsync);
|
|
XGrabKey(display, keyCode,
|
|
modifierMask|scrolllockMask,
|
|
_root, True, GrabModeAsync, GrabModeAsync);
|
|
XGrabKey(display, keyCode,
|
|
modifierMask|numlockMask,
|
|
_root, True, GrabModeAsync, GrabModeAsync);
|
|
|
|
XGrabKey(display, keyCode,
|
|
modifierMask|LockMask|scrolllockMask,
|
|
_root, True, GrabModeAsync, GrabModeAsync);
|
|
XGrabKey(display, keyCode,
|
|
modifierMask|scrolllockMask|numlockMask,
|
|
_root, True, GrabModeAsync, GrabModeAsync);
|
|
XGrabKey(display, keyCode,
|
|
modifierMask|numlockMask|LockMask,
|
|
_root, True, GrabModeAsync, GrabModeAsync);
|
|
|
|
XGrabKey(display, keyCode,
|
|
modifierMask|numlockMask|LockMask|scrolllockMask,
|
|
_root, True, GrabModeAsync, GrabModeAsync);
|
|
}
|