plasma-framework/service.cpp

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/*
* Copyright 2008 Aaron Seigo <aseigo@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library 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 Library 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.
*/
#include "service.h"
#include "service_p.h"
#include <QFile>
#include <KDebug>
#include <KService>
#include <KServiceTypeTrader>
#include <KSharedConfig>
#include <KStandardDirs>
#include <KTemporaryFile>
#include "configxml.h"
namespace Plasma
{
Service::Service(QObject *parent)
: QObject(parent),
d(new ServicePrivate(this))
{
registerOperationsScheme();
}
Service::Service(QObject *parent, const QVariantList &args)
: QObject(parent),
d(new ServicePrivate(this))
{
Q_UNUSED(args);
registerOperationsScheme();
}
Service::~Service()
{
delete d;
}
Service* Service::load(const QString &name, QObject *parent)
{
//TODO: scripting API support
if (name.isEmpty()) {
return new NullService(parent);
}
QString constraint = QString("[X-KDE-PluginInfo-Name] == '%1'").arg(name);
KService::List offers = KServiceTypeTrader::self()->query("Plasma/Service", constraint);
if (offers.isEmpty()) {
kDebug() << "offers is empty for " << name;
return new NullService(parent);
}
KService::Ptr offer = offers.first();
QString error;
QVariantList args;
Service* service = offer->createInstance<Plasma::Service>(parent, args, &error);
if (!service) {
kDebug() << "Couldn't load Service \"" << name << "\"! reason given: " << error;
return new NullService(parent);
}
return service;
}
void Service::setDestination(const QString &destination)
{
d->destination = destination;
}
QString Service::destination() const
{
return d->destination;
}
QStringList Service::operationNames() const
{
if (!d->config) {
return QStringList();
}
return d->config->config()->groupList();
}
KConfigGroup Service::operationDescription(const QString &operationName)
{
if (!d->config) {
return KConfigGroup();
}
KConfigGroup params(d->config->config(), operationName);
return params;
}
ServiceJob* Service::startOperationCall(const KConfigGroup &description)
{
// TODO: nested groups?
if (!d->config) {
return new NullServiceJob(parent());
}
d->config->writeConfig();
QMap<QString, QVariant> params;
QString op = description.name();
foreach (const QString &key, description.keyList()) {
KConfigSkeletonItem *item = d->config->findItem(op, key);
if (item) {
params.insert(key, item->property());
}
}
ServiceJob *job = createJob(description.name(), params);
connect(job, SIGNAL(finished(KJob*)), this, SLOT(jobFinished(KJob*)));
job->start();
return job;
}
QString Service::name() const
{
return d->name;
}
void Service::setName(const QString &name)
{
d->name = name;
}
void Service::setOperationsScheme(QIODevice *xml)
{
delete d->config;
delete d->tempFile;
//FIXME: make KSharedConfig and KConfigSkeleton not braindamaged in 4.2 and then get rid of the
// temp file object here
d->tempFile = new KTemporaryFile;
d->config = new ConfigXml(KSharedConfig::openConfig(d->tempFile->fileName()), xml, this);
}
void Service::registerOperationsScheme()
{
if (d->name.isEmpty()) {
return;
}
QString path = KStandardDirs::locate("data", "plasma/services/" + d->name + ".operations");
if (path.isEmpty()) {
return;
}
QFile file(path);
setOperationsScheme(&file);
}
} // namespace Plasma
#include "service.moc"