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Plasma

executable.cpp

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00001 /*
00002  *   Copyright (C) 2007, 2008 Petri Damsten <damu@iki.fi>
00003  *
00004  *   This program is free software; you can redistribute it and/or modify
00005  *   it under the terms of the GNU Library General Public License version 2 as
00006  *   published by the Free Software Foundation
00007  *
00008  *   This program is distributed in the hope that it will be useful,
00009  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
00010  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011  *   GNU General Public License for more details
00012  *
00013  *   You should have received a copy of the GNU Library General Public
00014  *   License along with this program; if not, write to the
00015  *   Free Software Foundation, Inc.,
00016  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00017  */
00018 
00019 #include "executable.h"
00020 #include <KDebug>
00021 
00022 ExecutableContainer::ExecutableContainer(const QString& command, QObject* parent)
00023     : Plasma::DataContainer(parent), m_process(0)
00024 {
00025     setObjectName(command);
00026     connect(this, SIGNAL(updateRequested(DataContainer*)), this, SLOT(exec()));
00027     exec();
00028 }
00029 
00030 ExecutableContainer::~ExecutableContainer()
00031 {
00032     delete m_process;
00033 }
00034 
00035 void ExecutableContainer::finished(int exitCode, QProcess::ExitStatus exitStatus)
00036 {
00037     //kDebug() << objectName();
00038     setData("exit code", exitCode);
00039     setData("exit status", exitStatus);
00040     setData("stdout", QString::fromLocal8Bit(m_process->readAllStandardOutput()));
00041     setData("stderr", QString::fromLocal8Bit(m_process->readAllStandardError()));
00042     checkForUpdate();
00043 }
00044 
00045 void ExecutableContainer::exec()
00046 {
00047     //kDebug() << objectName();
00048     if (!m_process) {
00049         m_process = new KProcess();
00050         connect(m_process, SIGNAL(finished(int, QProcess::ExitStatus)),
00051                 this, SLOT(finished(int, QProcess::ExitStatus)));
00052         m_process->setOutputChannelMode(KProcess::SeparateChannels);
00053         m_process->setShellCommand(objectName());
00054     }
00055 
00056     if (m_process->state() == QProcess::NotRunning) {
00057         m_process->start();
00058     } else {
00059         kDebug() << "Process" << objectName() << "already running. Pid:" << m_process->pid();
00060     }
00061 }
00062 
00063 
00064 ExecutableEngine::ExecutableEngine(QObject* parent, const QVariantList& args)
00065     : Plasma::DataEngine(parent, args)
00066 {
00067     setMinimumPollingInterval(1000);
00068 }
00069 
00070 bool ExecutableEngine::sourceRequestEvent(const QString& source)
00071 {
00072     //kDebug() << source;
00073     addSource(new ExecutableContainer(source, this));
00074     return true;
00075 }
00076 
00077 #include "executable.moc"

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