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/*
* SynDaemon.cpp
*
* Copyright (C) 2007, 2008 Stefan Kombrink
*
* This file is part of TouchFreeze.
*
* TouchFreeze 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.
*
* TouchFreeze 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 touchfreeze; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* On Debian GNU/Linux systems, the complete text of the GNU General
* Public License can be found in the /usr/share/common-licenses/GPL file.
*/
#include "SynDaemon.h"
#include <QSettings>
SynDaemon::SynDaemon( QObject* parent ) : QObject( parent )
{
qDebug() << "SynDaemon::SynDaemon" << endl;
mBypassTimer.setSingleShot( true );
connect( &mBypassTimer, SIGNAL( timeout() ), this, SLOT( onStopTyping() ) );
connect( this, SIGNAL( triggerBypass() ), this, SLOT( onStartTyping() ) );
// use last saved values
rollbackSettings();
mDisplay = NULL;
mDisplay = XOpenDisplay( NULL );
mPollingTimer.setInterval( 20 );
connect( &mPollingTimer, SIGNAL( timeout() ), this, SLOT( checkOnKeyboardActivity() ) );
mPollingTimer.start();
}
void SynDaemon::checkOnKeyboardActivity()
{
if ( hasKeyboardActivity() )
emit triggerBypass();
}
void SynDaemon::onStartTyping()
{
if ( !mBypassTimer.isActive() && isDaemonActive() && isTouchPadActive() )
emit startTyping();
mBypassTimer.start();
}
void SynDaemon::onStopTyping()
{
if ( !hasKeyboardActivity() && isDaemonActive() && isTouchPadActive())
emit stopTyping();
else
mBypassTimer.start();
}
void SynDaemon::setDelay( unsigned int delay )
{
unsigned int min = 10;
unsigned int max = 2000;
mBypassTimer.setInterval( qBound( min, delay, max ) );
}
unsigned int SynDaemon::delay() const
{
return mBypassTimer.interval();
}
void SynDaemon::setDaemonActive( bool active )
{
qDebug() << "set daemon" << active;
mDaemonActive = active;
}
bool SynDaemon::isDaemonActive() const
{
return mDaemonActive;
}
void SynDaemon::rollbackSettings()
{
QSettings settings("TouchFreeze");
setDelay( settings.value( "syndaemon/delay", 500 ).toUInt() );
setDaemonActive( settings.value( "syndaemon/daemonactive", true ).toBool() );
setTouchPadActive( settings.value( "syndaemon/touchpadactive", true ).toBool() );
}
void SynDaemon::commitSettings()
{
QSettings settings("TouchFreeze");
settings.setValue("syndaemon/delay",delay());
settings.setValue("syndaemon/daemonactive",isDaemonActive());
settings.setValue("syndaemon/touchpadactive",isTouchPadActive());
settings.sync();
}
SynDaemon::~SynDaemon()
{
// qDebug() << "Syndaemon::~Syndaemon";
if ( !mDisplay )
XCloseDisplay( mDisplay );
}
bool SynDaemon::hasKeyboardActivity() const
{
const unsigned int KEYMAP_SIZE=32;
static unsigned char oldKeyState[KEYMAP_SIZE];
unsigned char keyState[KEYMAP_SIZE];
bool result = false;
XQueryKeymap( mDisplay, (char*)keyState );
// find pressed keys
for ( unsigned int i = 0; i < KEYMAP_SIZE; i++ )
{
if ( ( keyState[i] & ~oldKeyState[i] ) )
{
result = true;
break;
}
}
// back up key states...
for ( unsigned int i = 0; i < KEYMAP_SIZE; i++ )
{
oldKeyState[i] = keyState[i];
}
return result;
}
void SynDaemon::setTouchPadActive( bool active )
{
qDebug() << "set pad" << active;
mTouchPadActive = active;
}
bool SynDaemon::isTouchPadActive() const
{
return mTouchPadActive;
}
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