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tdelibs/arts/knotify/knotify.cpp

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/*
Copyright (c) 1997 Christian Esken (esken@kde.org)
2000 Charles Samuels (charles@kde.org)
2000 Stefan Schimanski (1Stein@gmx.de)
2000 Matthias Ettrich (ettrich@kde.org)
2000 Waldo Bastian <bastian@kde.org>
2000-2003 Carsten Pfeiffer <pfeiffer@kde.org>
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 2, 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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
// C headers
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <config.h>
#ifndef WITHOUT_ARTS
// aRts headers
#include <connect.h>
#include <dispatcher.h>
#include <flowsystem.h>
#include <qiomanager.h>
#include <soundserver.h>
#endif
// QT headers
#include <tqfile.h>
#include <tqfileinfo.h>
#include <tqstringlist.h>
#include <tqtextstream.h>
// KDE headers
#include <dcopclient.h>
#include <kaboutdata.h>
#ifndef WITHOUT_ARTS
#include <kartsdispatcher.h>
#include <kartsserver.h>
#endif
#include <kcmdlineargs.h>
#include <kconfig.h>
#include <kdebug.h>
#include <kglobal.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kpassivepopup.h>
#include <kiconloader.h>
#include <kmacroexpander.h>
#ifndef WITHOUT_ARTS
#include <kplayobjectfactory.h>
#include <kaudiomanagerplay.h>
#endif
#include <kprocess.h>
#include <kstandarddirs.h>
#include <kuniqueapplication.h>
#include <kwin.h>
#include "knotify.h"
#include "knotify.moc"
class KNotifyPrivate
{
public:
KConfig* globalEvents;
KConfig* globalConfig;
TQMap<TQString, KConfig*> events;
TQMap<TQString, KConfig*> configs;
TQString externalPlayer;
KProcess *externalPlayerProc;
#ifndef WITHOUT_ARTS
TQPtrList<KDE::PlayObject> playObjects;
TQMap<KDE::PlayObject*,int> playObjectEventMap;
KAudioManagerPlay *audioManager;
#endif
int externalPlayerEventId;
bool useExternal;
bool useArts;
int volume;
TQTimer *playTimer;
bool inStartup;
TQString startupEvents;
};
// Yes, it's ugly to put this here, but this facilitates the cautious startup
// procedure.
#ifndef WITHOUT_ARTS
KArtsServer *soundServer = 0;
#endif
extern "C"{
KDE_EXPORT int kdemain(int argc, char **argv)
{
KAboutData aboutdata("knotify", I18N_NOOP("KNotify"),
"3.0", I18N_NOOP("KDE Notification Server"),
KAboutData::License_GPL, "(C) 1997-2003, KDE Developers");
aboutdata.addAuthor("Carsten Pfeiffer",I18N_NOOP("Current Maintainer"),"pfeiffer@kde.org");
aboutdata.addAuthor("Christian Esken",0,"esken@kde.org");
aboutdata.addAuthor("Stefan Westerfeld",I18N_NOOP("Sound support"),"stefan@space.twc.de");
aboutdata.addAuthor("Charles Samuels",I18N_NOOP("Previous Maintainer"),"charles@kde.org");
KCmdLineArgs::init( argc, argv, &aboutdata );
KUniqueApplication::addCmdLineOptions();
// initialize application
if ( !KUniqueApplication::start() ) {
kdDebug() << "Running knotify found" << endl;
return 0;
}
KUniqueApplication app;
app.disableSessionManagement();
// KNotify is started on KDE startup and on demand (using
// KNotifClient::startDaemon()) whenever a KNotify event occurs. Especially
// KWin may fire many events (e.g. when a window pops up). When we have
// problems with aRts or the installation, we might get an infinite loop
// of knotify crashing, popping up the crashhandler window and kwin firing
// another event, starting knotify again...
// We try to prevent this by tracking our startup and offer options to
// abort this.
#ifndef WITHOUT_ARTS
KConfigGroup config( KGlobal::config(), "StartProgress" );
KConfig artsKCMConfig( "kcmartsrc" );
artsKCMConfig.setGroup( "Arts" );
bool useArts = artsKCMConfig.readBoolEntry( "StartServer", true );
if (useArts)
useArts = config.readBoolEntry( "Use Arts", useArts );
bool ok = config.readBoolEntry( "Arts Init", true );
if ( useArts && !ok )
{
if ( KMessageBox::questionYesNo(
0L,
i18n("During the previous startup, KNotify crashed while creating "
"Arts::Dispatcher. Do you want to try again or disable "
"aRts sound output?\n\n"
"If you choose to disable aRts output now, you can re-enable "
"it later or select an alternate sound player "
"in the System Notifications control panel."),
i18n("KNotify Problem"),
i18n("&Try Again"),
i18n("D&isable aRts Output"),
"KNotifyStartProgress",
0 /* don't call KNotify :) */
)
== KMessageBox::No )
{
useArts = false;
}
}
// when ArtsDispatcher crashes, we know it the next start.
config.writeEntry( "Arts Init", false );
config.writeEntry( "Use Arts", useArts );
config.sync();
KArtsDispatcher *dispatcher = 0;
if ( useArts )
{
dispatcher = new KArtsDispatcher;
soundServer = new KArtsServer;
}
// ok, seemed to work.
config.writeEntry("Arts Init", useArts );
config.sync();
ok = config.readBoolEntry( "KNotify Init", true );
if ( useArts && !ok )
{
if ( KMessageBox::questionYesNo(
0L,
i18n("During the previous startup, KNotify crashed while instantiating "
"KNotify. Do you want to try again or disable "
"aRts sound output?\n\n"
"If you choose to disable aRts output now, you can re-enable "
"it later or select an alternate sound player "
"in the System Notifications control panel."),
i18n("KNotify Problem"),
i18n("&Try Again"),
i18n("D&isable aRts Output"),
"KNotifyStartProgress",
0 /* don't call KNotify :) */
)
== KMessageBox::No )
{
useArts = false;
delete soundServer;
soundServer = 0L;
delete dispatcher;
dispatcher = 0L;
}
}
// when KNotify instantiation crashes, we know it the next start.
config.writeEntry( "KNotify Init", false );
config.writeEntry( "Use Arts", useArts );
config.sync();
// start notify service
KNotify *notify = new KNotify( useArts );
config.writeEntry( "KNotify Init", true );
config.sync();
#else
// start notify service, without aRts
KNotify *notify = new KNotify( false );
#endif
app.dcopClient()->setDefaultObject( "Notify" );
app.dcopClient()->setDaemonMode( true );
// kdDebug() << "knotify starting" << endl;
int ret = app.exec();
delete notify;
#ifndef WITHOUT_ARTS
delete soundServer;
delete dispatcher;
#endif
return ret;
}
}// end extern "C"
KNotify::KNotify( bool useArts )
: TQObject(), DCOPObject("Notify")
{
d = new KNotifyPrivate;
d->globalEvents = new KConfig("knotify/eventsrc", true, false, "data");
d->globalConfig = new KConfig("knotify.eventsrc", true, false);
d->externalPlayerProc = 0;
d->useArts = useArts;
d->inStartup = true;
#ifndef WITHOUT_ARTS
d->playObjects.setAutoDelete(true);
d->audioManager = 0;
if( useArts )
{
connect( soundServer, TQT_SIGNAL( restartedServer() ), this, TQT_SLOT( restartedArtsd() ) );
restartedArtsd(); //started allready need to initialize d->audioManager
}
#endif
d->volume = 100;
d->playTimer = 0;
loadConfig();
}
KNotify::~KNotify()
{
reconfigure();
#ifndef WITHOUT_ARTS
d->playObjects.clear();
delete d->globalEvents;
delete d->globalConfig;
delete d->externalPlayerProc;
delete d->audioManager;
#endif
delete d;
}
void KNotify::loadConfig() {
// load external player settings
KConfig *kc = KGlobal::config();
kc->setGroup("Misc");
d->useExternal = kc->readBoolEntry( "Use external player", false );
d->externalPlayer = kc->readPathEntry("External player");
// try to locate a suitable player if none is configured
if ( d->externalPlayer.isEmpty() ) {
TQStringList players;
players << "wavplay" << "aplay" << "auplay";
TQStringList::Iterator it = players.begin();
while ( d->externalPlayer.isEmpty() && it != players.end() ) {
d->externalPlayer = KStandardDirs::findExe( *it );
++it;
}
}
// load default volume
d->volume = kc->readNumEntry( "Volume", 100 );
}
void KNotify::reconfigure()
{
kapp->config()->reparseConfiguration();
loadConfig();
// clear loaded config files
d->globalConfig->reparseConfiguration();
for ( TQMapIterator<TQString,KConfig*> it = d->configs.begin(); it != d->configs.end(); ++it )
delete it.data();
d->configs.clear();
}
void KNotify::notify(const TQString &event, const TQString &fromApp,
const TQString &text, TQString sound, TQString file,
int present, int level)
{
notify( event, fromApp, text, sound, file, present, level, 0, 1 );
}
void KNotify::notify(const TQString &event, const TQString &fromApp,
const TQString &text, TQString sound, TQString file,
int present, int level, int winId)
{
notify( event, fromApp, text, sound, file, present, level, winId, 1 );
}
void KNotify::notify(const TQString &event, const TQString &fromApp,
const TQString &text, TQString sound, TQString file,
int present, int level, int winId, int eventId )
{
// kdDebug() << "event=" << event << " fromApp=" << fromApp << " text=" << text << " sound=" << sound <<
// " file=" << file << " present=" << present << " level=" << level << " winId=" << winId << " eventId=" << eventId << endl;
if( d->inStartup ) {
d->startupEvents += "(" + event + ":" + fromApp + ")";
}
TQString commandline;
KConfig *eventsFile = NULL;
KConfig *configFile = NULL;
// check for valid events
if ( !event.isEmpty() ) {
// get config file
if ( d->events.contains( fromApp ) ) {
eventsFile = d->events[fromApp];
} else {
eventsFile=new KConfig(locate("data", fromApp+"/eventsrc"),true,false);
d->events.insert( fromApp, eventsFile );
}
if ( d->configs.contains( fromApp) ) {
configFile = d->configs[fromApp];
} else {
configFile=new KConfig(fromApp+".eventsrc",true,false);
d->configs.insert( fromApp, configFile );
}
if ( !eventsFile->hasGroup( event ) && isGlobal(event) )
{
eventsFile = d->globalEvents;
configFile = d->globalConfig;
}
eventsFile->setGroup( event );
configFile->setGroup( event );
// get event presentation
if ( present==-1 )
present = configFile->readNumEntry( "presentation", -1 );
if ( present==-1 )
present = eventsFile->readNumEntry( "default_presentation", 0 );
// get sound file name
if( present & KNotifyClient::Sound ) {
TQString theSound = configFile->readPathEntry( "soundfile" );
if ( theSound.isEmpty() )
theSound = eventsFile->readPathEntry( "default_sound" );
if ( !theSound.isEmpty() )
sound = theSound;
}
// get log file name
if( present & KNotifyClient::Logfile ) {
TQString theFile = configFile->readPathEntry( "logfile" );
if ( theFile.isEmpty() )
theFile = eventsFile->readPathEntry( "default_logfile" );
if ( !theFile.isEmpty() )
file = theFile;
}
// get default event level
if( present & KNotifyClient::Messagebox )
level = eventsFile->readNumEntry( "level", 0 );
// get command line
if (present & KNotifyClient::Execute ) {
commandline = configFile->readPathEntry( "commandline" );
if ( commandline.isEmpty() )
commandline = eventsFile->readPathEntry( "default_commandline" );
}
}
// emit event
if ( present & KNotifyClient::Sound ) // && TQFile(sound).isReadable()
notifyBySound( sound, fromApp, eventId );
if ( present & KNotifyClient::Execute )
notifyByExecute( commandline, event, fromApp, text, winId, eventId );
if ( present & KNotifyClient::Logfile ) // && TQFile(file).isWritable()
notifyByLogfile( text, file );
if ( present & KNotifyClient::Stderr )
notifyByStderr( text );
if ( present & KNotifyClient::Taskbar )
notifyByTaskbar( checkWinId( fromApp, winId ));
if ( present & KNotifyClient::PassivePopup )
notifyByPassivePopup( text, fromApp, eventsFile, checkWinId( fromApp, winId ));
else if ( present & KNotifyClient::Messagebox )
notifyByMessagebox( text, level, checkWinId( fromApp, winId ));
TQByteArray qbd;
TQDataStream ds(qbd, IO_WriteOnly);
ds << event << fromApp << text << sound << file << present << level
<< winId << eventId;
emitDCOPSignal("notifySignal(TQString,TQString,TQString,TQString,TQString,int,int,int,int)", qbd);
}
bool KNotify::notifyBySound( const TQString &sound, const TQString &appname, int eventId )
{
if (sound.isEmpty()) {
soundFinished( eventId, NoSoundFile );
return false;
}
bool external = d->useExternal && !d->externalPlayer.isEmpty();
// get file name
TQString soundFile(sound);
if ( TQFileInfo(sound).isRelative() )
{
TQString search = TQString("%1/sounds/%2").arg(appname).arg(sound);
soundFile = KGlobal::instance()->dirs()->findResource("data", search);
if ( soundFile.isEmpty() )
soundFile = locate( "sound", sound );
}
if ( soundFile.isEmpty() || isPlaying( soundFile ) )
{
soundFinished( eventId, soundFile.isEmpty() ? NoSoundFile : FileAlreadyPlaying );
return false;
}
// kdDebug() << "KNotify::notifyBySound - trying to play file " << soundFile << endl;
if (!external) {
//If we disabled using aRts, just return,
//(If we don't, we'll blow up accessing the null soundServer)
if (!d->useArts)
{
soundFinished( eventId, NoSoundSupport );
return false;
}
#ifndef WITHOUT_ARTS
// play sound finally
while( d->playObjects.count()>5 )
abortFirstPlayObject();
KDE::PlayObjectFactory factory(soundServer->server());
if( d->audioManager )
factory.setAudioManagerPlay( d->audioManager );
KURL soundURL;
soundURL.setPath(soundFile);
KDE::PlayObject *playObject = factory.createPlayObject(soundURL, false);
if (playObject->isNull())
{
soundFinished( eventId, NoSoundSupport );
delete playObject;
return false;
}
if ( d->volume != 100 )
{
// It works to access the playObject immediately because we don't allow
// non-file URLs for sounds.
Arts::StereoVolumeControl volumeControl = Arts::DynamicCast(soundServer->server().createObject("Arts::StereoVolumeControl"));
Arts::PlayObject player = playObject->object();
Arts::Synth_AMAN_PLAY ap = d->audioManager->amanPlay();
if( ! volumeControl.isNull() && ! player.isNull() && ! ap.isNull() )
{
volumeControl.scaleFactor( d->volume/100.0 );
ap.stop();
Arts::disconnect( player, "left", ap, "left" );
Arts::disconnect( player, "right", ap, "right" );
ap.start();
volumeControl.start();
Arts::connect(player,"left",volumeControl,"inleft");
Arts::connect(player,"right",volumeControl,"inright");
Arts::connect(volumeControl,"outleft",ap,"left");
Arts::connect(volumeControl,"outright",ap,"right");
player._addChild( volumeControl, "volume" );
}
}
playObject->play();
d->playObjects.append( playObject );
d->playObjectEventMap.insert( playObject, eventId );
if ( !d->playTimer )
{
d->playTimer = new TQTimer( this );
connect( d->playTimer, TQT_SIGNAL( timeout() ), TQT_SLOT( playTimeout() ) );
}
if ( !d->playTimer->isActive() )
d->playTimer->start( 1000 );
#endif
return true;
} else if(!d->externalPlayer.isEmpty()) {
// use an external player to play the sound
KProcess *proc = d->externalPlayerProc;
if (!proc)
{
proc = d->externalPlayerProc = new KProcess;
connect( proc, TQT_SIGNAL( processExited( KProcess * )),
TQT_SLOT( slotPlayerProcessExited( KProcess * )));
}
if (proc->isRunning())
{
soundFinished( eventId, PlayerBusy );
return false; // Skip
}
proc->clearArguments();
(*proc) << d->externalPlayer << TQFile::encodeName( soundFile );
d->externalPlayerEventId = eventId;
proc->start(KProcess::NotifyOnExit);
return true;
}
soundFinished( eventId, Unknown );
return false;
}
bool KNotify::notifyByMessagebox(const TQString &text, int level, WId winId)
{
// ignore empty messages
if ( text.isEmpty() )
return false;
// display message box for specified event level
switch( level ) {
default:
case KNotifyClient::Notification:
KMessageBox::informationWId( winId, text, i18n("Notification"), 0, false );
break;
case KNotifyClient::Warning:
KMessageBox::sorryWId( winId, text, i18n("Warning"), false );
break;
case KNotifyClient::Error:
KMessageBox::errorWId( winId, text, i18n("Error"), false );
break;
case KNotifyClient::Catastrophe:
KMessageBox::errorWId( winId, text, i18n("Catastrophe!"), false );
break;
}
return true;
}
bool KNotify::notifyByPassivePopup( const TQString &text,
const TQString &appName,
KConfig* eventsFile,
WId senderWinId )
{
KIconLoader iconLoader( appName );
if ( eventsFile != NULL ) {
KConfigGroup config( eventsFile, "!Global!" );
TQString iconName = config.readEntry( "IconName", appName );
TQPixmap icon = iconLoader.loadIcon( iconName, KIcon::Small );
TQString title = config.readEntry( "Comment", appName );
KPassivePopup::message(title, text, icon, senderWinId);
} else
kdError() << "No events for app " << appName << "defined!" <<endl;
return true;
}
bool KNotify::notifyByExecute(const TQString &command, const TQString& event,
const TQString& fromApp, const TQString& text,
int winId, int eventId) {
if (!command.isEmpty()) {
// kdDebug() << "executing command '" << command << "'" << endl;
TQMap<TQChar,TQString> subst;
subst.insert( 'e', event );
subst.insert( 'a', fromApp );
subst.insert( 's', text );
subst.insert( 'w', TQString::number( winId ));
subst.insert( 'i', TQString::number( eventId ));
TQString execLine = KMacroExpander::expandMacrosShellQuote( command, subst );
if ( execLine.isEmpty() )
execLine = command; // fallback
KProcess p;
p.setUseShell(true);
p << execLine;
p.start(KProcess::DontCare);
return true;
}
return false;
}
bool KNotify::notifyByLogfile(const TQString &text, const TQString &file)
{
// ignore empty messages
if ( text.isEmpty() )
return true;
// open file in append mode
TQFile logFile(file);
if ( !logFile.open(IO_WriteOnly | IO_Append) )
return false;
// append msg
TQTextStream strm( &logFile );
strm << "- KNotify " << TQDateTime::currentDateTime().toString() << ": ";
strm << text << endl;
// close file
logFile.close();
return true;
}
bool KNotify::notifyByStderr(const TQString &text)
{
// ignore empty messages
if ( text.isEmpty() )
return true;
// open stderr for output
TQTextStream strm( stderr, IO_WriteOnly );
// output msg
strm << "KNotify " << TQDateTime::currentDateTime().toString() << ": ";
strm << text << endl;
return true;
}
bool KNotify::notifyByTaskbar( WId win )
{
if( win == 0 )
return false;
KWin::demandAttention( win );
return true;
}
bool KNotify::isGlobal(const TQString &eventname)
{
return d->globalEvents->hasGroup( eventname );
}
void KNotify::setVolume( int volume )
{
if ( volume<0 ) volume=0;
if ( volume>=100 ) volume=100;
d->volume = volume;
}
void KNotify::playTimeout()
{
#ifndef WITHOUT_ARTS
for ( TQPtrListIterator< KDE::PlayObject > it(d->playObjects); *it;)
{
TQPtrListIterator< KDE::PlayObject > current = it;
++it;
if ( (*current)->state() != Arts::posPlaying )
{
TQMap<KDE::PlayObject*,int>::Iterator eit = d->playObjectEventMap.find( *current );
if ( eit != d->playObjectEventMap.end() )
{
soundFinished( *eit, PlayedOK );
d->playObjectEventMap.remove( eit );
}
d->playObjects.remove( current );
}
}
if ( !d->playObjects.count() )
d->playTimer->stop();
#endif
}
bool KNotify::isPlaying( const TQString& soundFile ) const
{
#ifndef WITHOUT_ARTS
for ( TQPtrListIterator< KDE::PlayObject > it(d->playObjects); *it; ++it)
{
if ( (*it)->mediaName() == soundFile )
return true;
}
#endif
return false;
}
void KNotify::slotPlayerProcessExited( KProcess *proc )
{
soundFinished( d->externalPlayerEventId,
(proc->normalExit() && proc->exitStatus() == 0) ? PlayedOK : Unknown );
}
void KNotify::abortFirstPlayObject()
{
#ifndef WITHOUT_ARTS
TQMap<KDE::PlayObject*,int>::Iterator it = d->playObjectEventMap.find( d->playObjects.getFirst() );
if ( it != d->playObjectEventMap.end() )
{
soundFinished( it.data(), Aborted );
d->playObjectEventMap.remove( it );
}
d->playObjects.removeFirst();
#endif
}
void KNotify::soundFinished( int eventId, PlayingFinishedStatus reason )
{
TQByteArray data;
TQDataStream stream( data, IO_WriteOnly );
stream << eventId << (int) reason;
DCOPClient::mainClient()->emitDCOPSignal( "KNotify", "playingFinished(int,int)", data );
}
WId KNotify::checkWinId( const TQString &appName, WId senderWinId )
{
if ( senderWinId == 0 )
{
TQCString senderId = kapp->dcopClient()->senderId();
TQCString compare = (appName + "-mainwindow").latin1();
int len = compare.length();
// kdDebug() << "notifyByPassivePopup: appName=" << appName << " sender=" << senderId << endl;
QCStringList objs = kapp->dcopClient()->remoteObjects( senderId );
for (QCStringList::ConstIterator it = objs.begin(); it != objs.end(); ++it ) {
TQCString obj( *it );
if ( obj.left(len) == compare) {
// kdDebug( ) << "found " << obj << endl;
TQCString replyType;
TQByteArray data, replyData;
if ( kapp->dcopClient()->call(senderId, obj, "getWinID()", data, replyType, replyData) ) {
TQDataStream answer(replyData, IO_ReadOnly);
if (replyType == "int") {
answer >> senderWinId;
// kdDebug() << "SUCCESS, found getWinID(): type='" << TQString(replyType)
// << "' senderWinId=" << senderWinId << endl;
}
}
}
}
}
return senderWinId;
}
void KNotify::restartedArtsd()
{
#ifndef WITHOUT_ARTS
delete d->audioManager;
d->audioManager = new KAudioManagerPlay( soundServer );
d->audioManager->setTitle( i18n( "KDE System Notifications" ) );
d->audioManager->setAutoRestoreID( "KNotify Aman Play" );
#endif
}
void KNotify::sessionReady()
{
if( d->inStartup && !d->startupEvents.isEmpty())
kdDebug() << "There were knotify events while startup:" << d->startupEvents << endl;
d->inStartup = false;
}
// vim: sw=4 sts=4 ts=8 et
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