plasma-framework/private/componentinstaller.cpp
Kevin Kofler 3435f9f1e6 Add an API (currently private) for installing missing Plasma engines.
Use it when a requested data or script engine is not found.

REVIEW: 102175
2011-08-03 10:21:39 +02:00

104 lines
2.8 KiB
C++

/*
* Copyright 2011 Kevin Kofler <kevin.kofler@chello.at>
*
* 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 "private/componentinstaller_p.h"
#include <kglobal.h>
#ifdef PLASMA_ENABLE_PACKAGEKIT_SUPPORT
#include <QSet>
#include <QDBusInterface>
#include <QDBusPendingCall>
#include <QWidget>
#include <QLatin1String>
#include <QStringList>
#endif
namespace Plasma
{
class ComponentInstallerPrivate
{
public:
#ifdef PLASMA_ENABLE_PACKAGEKIT_SUPPORT
QSet<QString> alreadyPrompted;
#endif
};
class ComponentInstallerSingleton
{
public:
ComponentInstaller self;
};
K_GLOBAL_STATIC(ComponentInstallerSingleton, privateComponentInstallerSelf)
ComponentInstaller *ComponentInstaller::self()
{
return &privateComponentInstallerSelf->self;
}
ComponentInstaller::ComponentInstaller()
: d(new ComponentInstallerPrivate)
{
}
ComponentInstaller::~ComponentInstaller()
{
delete d;
}
void ComponentInstaller::installMissingComponent(const QString &type,
const QString &name,
QWidget *parent, bool force)
{
#ifdef PLASMA_ENABLE_PACKAGEKIT_SUPPORT
QString searchString = type + '-' + name;
if (!force) {
if (d->alreadyPrompted.contains(searchString)) {
return;
}
}
d->alreadyPrompted.insert(searchString);
QDBusInterface packageKit(QLatin1String("org.freedesktop.PackageKit"),
QLatin1String("/org/freedesktop/PackageKit"),
QLatin1String("org.freedesktop.PackageKit.Modify"));
// We don't check packageKit.isValid() because the service is activated on
// demand, so it will show up as "not valid".
WId wid = 0;
if (parent) {
wid = parent->winId();
}
QStringList resources;
resources.append(searchString);
packageKit.asyncCall(QLatin1String("InstallResources"), (unsigned int) wid,
QLatin1String("plasma-service"), resources, QString());
#else
Q_UNUSED(type);
Q_UNUSED(name);
Q_UNUSED(parent);
Q_UNUSED(force);
#endif
}
} // namespace Plasma