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Diffstat (limited to 'kdecore/knotifyclient.cpp')
| -rw-r--r-- | kdecore/knotifyclient.cpp | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/kdecore/knotifyclient.cpp b/kdecore/knotifyclient.cpp new file mode 100644 index 000000000..ab3032c35 --- /dev/null +++ b/kdecore/knotifyclient.cpp @@ -0,0 +1,363 @@ +/* This file is part of the KDE libraries + Copyright (C) 2000 Charles Samuels <charles@altair.dhs.org> + 2000 Malte Starostik <starosti@zedat.fu-berlin.de> + 2000,2003 Carsten Pfeiffer <pfeiffer@kde.org> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License version 2 as published by the Free Software Foundation. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include "knotifyclient.h" + +#include <qdatastream.h> +#include <qptrstack.h> + +#include <kapplication.h> +#include <kstandarddirs.h> +#include <kapplication.h> +#include <kconfig.h> +#include <dcopclient.h> +#include <kdebug.h> +#include <kstaticdeleter.h> + +static const char daemonName[] = "knotify"; + +static bool canAvoidStartupEvent( const QString& event, const QString& appname, int present ) +{ + static bool checkAvoid = true; + if( !checkAvoid ) + return false; + if(( appname != "kwin" && appname != "ksmserver" ) || present > 0 ) { + checkAvoid = false; + return false; + } + // startkde event is in global events file + static KConfig* configfile = appname != "ksmserver" + ? new KConfig( appname + ".eventsrc", true, false ) + : new KConfig( "knotify.eventsrc", true, false ); + static KConfig* eventsfile = appname != "ksmserver" + ? new KConfig( appname + "/eventsrc", true, false, "data" ) + : new KConfig( "knotify/eventsrc", true, false, "data" ); + configfile->setGroup( event ); + eventsfile->setGroup( event ); + int ev1 = configfile->readNumEntry( "presentation", -2 ); + int ev2 = eventsfile->readNumEntry( "default_presentation", -2 ); + if(( ev1 == -2 && ev2 == -2 ) // unknown + || ev1 > 0 // configured to have presentation + || ( ev1 == -2 && ev2 > 0 )) { // not configured, has default presentation + checkAvoid = false; + return false; + } + return true; +} + +static int sendNotifyEvent(const QString &message, const QString &text, + int present, int level, const QString &sound, + const QString &file, int winId ) +{ + if (!kapp) return 0; + + DCOPClient *client=kapp->dcopClient(); + if (!client->isAttached()) + { + client->attach(); + if (!client->isAttached()) + return 0; + } + + QString appname = KNotifyClient::instance()->instanceName(); + + if( canAvoidStartupEvent( message, appname, present )) + return -1; // done "successfully" - there will be no event presentation + + int uniqueId = kMax( 1, kapp->random() ); // must not be 0 -- means failure! + + // knotify daemon needs toplevel window + QWidget* widget = QWidget::find( (WId)winId ); + if( widget ) + winId = (int)widget->topLevelWidget()->winId(); + + QByteArray data; + QDataStream ds(data, IO_WriteOnly); + ds << message << appname << text << sound << file << present << level + << winId << uniqueId; + + if ( !KNotifyClient::startDaemon() ) + return 0; + + if ( client->send(daemonName, "Notify", "notify(QString,QString,QString,QString,QString,int,int,int,int)", data) ) + { + return uniqueId; + } + + return 0; +} + +int KNotifyClient::event( StandardEvent type, const QString& text ) +{ + return event( 0, type, text ); +} + +int KNotifyClient::event(const QString &message, const QString &text) +{ + return event(0, message, text); +} + +int KNotifyClient::userEvent(const QString &text, int present, int level, + const QString &sound, const QString &file) +{ + return userEvent( 0, text, present, level, sound, file ); +} + + +int KNotifyClient::event( int winId, StandardEvent type, const QString& text ) +{ + QString message; + switch ( type ) { + case cannotOpenFile: + message = QString::fromLatin1("cannotopenfile"); + break; + case warning: + message = QString::fromLatin1("warning"); + break; + case fatalError: + message = QString::fromLatin1("fatalerror"); + break; + case catastrophe: + message = QString::fromLatin1("catastrophe"); + break; + case notification: // fall through + default: + message = QString::fromLatin1("notification"); + break; + } + + return sendNotifyEvent( message, text, Default, Default, + QString::null, QString::null, winId ); +} + +int KNotifyClient::event(int winId, const QString &message, + const QString &text) +{ + return sendNotifyEvent(message, text, Default, Default, QString::null, QString::null, winId); +} + +int KNotifyClient::userEvent(int winId, const QString &text, int present, + int level, + const QString &sound, const QString &file) +{ + return sendNotifyEvent(QString::null, text, present, level, sound, file, winId); +} + +int KNotifyClient::getPresentation(const QString &eventname) +{ + int present; + if (eventname.isEmpty()) return Default; + + KConfig eventsfile( KNotifyClient::instance()->instanceName()+".eventsrc", true, false); + eventsfile.setGroup(eventname); + + present=eventsfile.readNumEntry("presentation", -1); + + return present; +} + +QString KNotifyClient::getFile(const QString &eventname, int present) +{ + if (eventname.isEmpty()) return QString::null; + + KConfig eventsfile( KNotifyClient::instance()->instanceName()+".eventsrc", true, false); + eventsfile.setGroup(eventname); + + switch (present) + { + case (Sound): + return eventsfile.readPathEntry("soundfile"); + case (Logfile): + return eventsfile.readPathEntry("logfile"); + } + + return QString::null; +} + +int KNotifyClient::getDefaultPresentation(const QString &eventname) +{ + int present; + if (eventname.isEmpty()) return Default; + + KConfig eventsfile( KNotifyClient::instance()->instanceName()+"/eventsrc", true, false, "data"); + eventsfile.setGroup(eventname); + + present=eventsfile.readNumEntry("default_presentation", -1); + + return present; +} + +QString KNotifyClient::getDefaultFile(const QString &eventname, int present) +{ + if (eventname.isEmpty()) return QString::null; + + KConfig eventsfile( KNotifyClient::instance()->instanceName()+"/eventsrc", true, false, "data"); + eventsfile.setGroup(eventname); + + switch (present) + { + case (Sound): + return eventsfile.readPathEntry("default_sound"); + case (Logfile): + return eventsfile.readPathEntry("default_logfile"); + } + + return QString::null; +} + +bool KNotifyClient::startDaemon() +{ + static bool firstTry = true; + if (!kapp->dcopClient()->isApplicationRegistered(daemonName)) { + if( firstTry ) { + firstTry = false; + return KApplication::startServiceByDesktopName(daemonName) == 0; + } + return false; + } + return true; +} + + +void KNotifyClient::beep(const QString& reason) +{ + if ( !kapp || KNotifyClient::Instance::currentInstance()->useSystemBell() ) { + QApplication::beep(); + return; + } + + DCOPClient *client=kapp->dcopClient(); + if (!client->isAttached()) + { + client->attach(); + if (!client->isAttached() || !client->isApplicationRegistered(daemonName)) + { + QApplication::beep(); + return; + } + } + // The kaccess daemon handles visual and other audible beeps + if ( client->isApplicationRegistered( "kaccess" ) ) + { + QApplication::beep(); + return; + } + + KNotifyClient::event(KNotifyClient::notification, reason); +} + + +KInstance * KNotifyClient::instance() { + return KNotifyClient::Instance::current(); +} + + +class KNotifyClient::InstanceStack +{ +public: + InstanceStack() { m_defaultInstance = 0; } + virtual ~InstanceStack() { delete m_defaultInstance; } + void push(Instance *instance) { m_instances.push(instance); } + + void pop(Instance *instance) + { + if (m_instances.top() == instance) + m_instances.pop(); + else if (!m_instances.isEmpty()) + { + kdWarning(160) << "Tried to remove an Instance that is not the current," << endl; + kdWarning(160) << "Resetting to the main KApplication." << endl; + m_instances.clear(); + } + else + kdWarning(160) << "Tried to remove an Instance, but the stack was empty." << endl; + } + + Instance *currentInstance() + { + if (m_instances.isEmpty()) + { + m_defaultInstance = new Instance(kapp); + } + return m_instances.top(); + } + +private: + QPtrStack<Instance> m_instances; + Instance *m_defaultInstance; +}; + +KNotifyClient::InstanceStack * KNotifyClient::Instance::s_instances = 0L; +static KStaticDeleter<KNotifyClient::InstanceStack > instancesDeleter; + +struct KNotifyClient::InstancePrivate +{ + KInstance *instance; + bool useSystemBell; +}; + +KNotifyClient::Instance::Instance(KInstance *instance) +{ + d = new InstancePrivate; + d->instance = instance; + instances()->push(this); + + KConfig *config = instance->config(); + KConfigGroupSaver cs( config, "General" ); + d->useSystemBell = config->readBoolEntry( "UseSystemBell", false ); +} + +KNotifyClient::Instance::~Instance() +{ + if (s_instances) + s_instances->pop(this); + delete d; +} + +KNotifyClient::InstanceStack *KNotifyClient::Instance::instances() +{ + if (!s_instances) + instancesDeleter.setObject(s_instances, new InstanceStack); + return s_instances; +} + +bool KNotifyClient::Instance::useSystemBell() const +{ + return d->useSystemBell; +} + + +// static methods + +// We always return a valid KNotifyClient::Instance here. If no special one +// is available, we have a default-instance with kapp as KInstance. +// We make sure to always have that default-instance in the stack, because +// the stack might have gotten cleared in the destructor. +// We can't use QStack::setAutoDelete( true ), because no instance besides +// our default instance is owned by us. +KNotifyClient::Instance * KNotifyClient::Instance::currentInstance() +{ + return instances()->currentInstance(); +} + +KInstance *KNotifyClient::Instance::current() +{ + return currentInstance()->d->instance; +} |