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/*******************************************************************************
syndaemon - daemon for the Synaptics touchpad driver which disables touchpad
on keyboard input
Copyright © 2004 Nadeem Hasan <[email protected]>
Stefan Kombrink <[email protected]>
2024 Mavridis Philippe <[email protected]>
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <https://www.gnu.org/licenses/>.
*******************************************************************************/
// TQt
#include <tqdatetime.h>
#include <tqtimer.h>
// TDE
#include <ksimpleconfig.h>
#include <tdecmdlineargs.h>
#include <kuniqueapplication.h>
#include <tdeaboutdata.h>
#include <tdelocale.h>
#include <kdebug.h>
// DCOP
#include <dcopclient.h>
// tdecm_touchpad
#include "touchpad_settings.h"
// SynDaemon
#include "syndaemon.h"
#include "syndaemon.moc"
const unsigned int SynDaemon::TIME_OUT = 150;
const unsigned int SynDaemon::POLL_INTERVAL = 100;
const unsigned int SynDaemon::KEYMAP_SIZE = 32;
unsigned char* SynDaemon::m_keyboard_mask;
SynDaemon::SynDaemon() : DCOPObject("syndaemon"), TQObject()
{
m_typing = false;
m_time = new TQTime();
d_settings = new TouchpadSettings;
m_keyboard_mask = new unsigned char[ KEYMAP_SIZE ];
// open a connection to the X server
m_display = XOpenDisplay(NULL);
if (!m_display) kdError() << "Can't open display!" << endl;
// setup keymap
XModifierKeymap *modifiers;
for (unsigned int i = 0; i < KEYMAP_SIZE; ++i)
m_keyboard_mask[i] = 0xFF;
modifiers = XGetModifierMapping(m_display);
for (int i = 0; i < 8 * modifiers->max_keypermod; ++i)
{
KeyCode kc = modifiers->modifiermap[i];
if (kc != 0) clearBit(m_keyboard_mask, kc);
}
XFreeModifiermap(modifiers);
m_poll = new TQTimer(this);
connect(m_poll, TQ_SIGNAL(timeout()), this, TQ_SLOT(poll()));
m_poll->start(POLL_INTERVAL);
}
SynDaemon::~SynDaemon()
{
setTouchpadOn(true);
m_poll->stop();
delete m_keyboard_mask;
}
void SynDaemon::stop()
{
kapp->quit();
}
void SynDaemon::poll()
{
// do nothing if the user has explicitly disabled the touchpad in the settings
if (!touchpadEnabled()) return;
if (hasKeyboardActivity())
{
m_time->start();
if (!m_typing)
{
setTouchpadOn(false);
}
}
else
{
if (m_typing && (m_time->elapsed() > TIME_OUT))
{
setTouchpadOn(true);
}
}
}
bool SynDaemon::touchpadEnabled()
{
// We can't read from our own TouchpadSettings
// as it contains the currently applied value
// so we revert to this
KSimpleConfig cfg("kcminputrc");
cfg.setGroup("Touchpad");
return cfg.readBoolEntry("Enabled", true);
}
void SynDaemon::setTouchpadOn(bool on)
{
m_typing = !on;
if (!d_settings->setTouchpadEnabled(on))
{
kdWarning() << "unable to turn off touchpad!" << endl;
}
}
void SynDaemon::clearBit(unsigned char *ptr, int bit)
{
int byteNum = bit / 8;
int bitNum = bit % 8;
ptr[byteNum] &= ~(1 << bitNum);
}
bool SynDaemon::hasKeyboardActivity()
{
static unsigned char oldKeyState[KEYMAP_SIZE];
unsigned char keyState[KEYMAP_SIZE];
bool result = false;
XQueryKeymap(m_display, (char*)keyState);
// find pressed keys
for (unsigned int i = 0; i < KEYMAP_SIZE; ++i)
{
if ((keyState[i] & ~oldKeyState[i]) & m_keyboard_mask[i])
{
result = true;
break;
}
}
// ignore any modifiers
for (unsigned int i = 0; i < KEYMAP_SIZE; ++i)
{
if (keyState[i] & ~m_keyboard_mask[i])
{
result = false;
break;
}
}
// back up key states...
for (unsigned int i = 0; i < KEYMAP_SIZE; ++i)
{
oldKeyState[i] = keyState[i];
}
return result;
}
extern "C" TDE_EXPORT int main(int argc, char *argv[])
{
TDEAboutData aboutData( "syndaemon", I18N_NOOP("Synaptics helper daemon"),
"0.1", I18N_NOOP("Synaptics helper daemon"), TDEAboutData::License_GPL_V2,
"© 2024 Mavridis Philippe" );
aboutData.addAuthor("Nadeem Hasan", I18N_NOOP("Author"), "[email protected]");
aboutData.addAuthor("Mavridis Philippe", I18N_NOOP("Author"), "[email protected]");
TDECmdLineArgs::init(argc, argv, &aboutData);
TDEApplication app;
app.disableSessionManagement();
app.dcopClient()->registerAs("syndaemon", false);
SynDaemon syndaemon;
return app.exec();
}
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