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Diffstat (limited to 'kcontrol/input/syndaemon.cpp')
| -rw-r--r-- | kcontrol/input/syndaemon.cpp | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/kcontrol/input/syndaemon.cpp b/kcontrol/input/syndaemon.cpp new file mode 100644 index 000000000..53d8346ca --- /dev/null +++ b/kcontrol/input/syndaemon.cpp @@ -0,0 +1,201 @@ +/******************************************************************************* + syndaemon - daemon for the Synaptics touchpad driver which disables touchpad + on keyboard input + + Copyright © 2004 Nadeem Hasan <nhasan@kde.org> + Stefan Kombrink <katakombi@web.de> + 2024 Mavridis Philippe <mavridisf@gmail.com> + + 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"), "nhasan@kde.org"); + aboutData.addAuthor("Mavridis Philippe", I18N_NOOP("Author"), "mavridisf@gmail.com"); + + TDECmdLineArgs::init(argc, argv, &aboutData); + + TDEApplication app; + app.disableSessionManagement(); + app.dcopClient()->registerAs("syndaemon", false); + + SynDaemon syndaemon; + return app.exec(); +}
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