plasma-framework/scriptengines/javascript/bind_dataengine.h

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/*
* Copyright 2007 Richard J. Moore <rich@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 version 2 as
* published by the Free Software Foundation
*
* 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.
*/
#ifndef BIND_DATAENGINE_H
#define BIND_DATAENGINE_H
#include <QtScript/QtScript>
#include <KDebug>
#include <Plasma/DataEngine>
#include <Plasma/Service>
#include <Plasma/ServiceJob>
using namespace Plasma;
Q_DECLARE_METATYPE(DataEngine*)
Q_DECLARE_METATYPE(Service*)
Q_DECLARE_METATYPE(ServiceJob*)
Q_DECLARE_METATYPE(QVariant)
Q_DECLARE_METATYPE(DataEngine::Dict)
Q_DECLARE_METATYPE(DataEngine::Data)
template <class M>
QScriptValue qScriptValueFromMap(QScriptEngine *eng, const M &map)
{
kDebug() << "qScriptValueFromMap called";
QScriptValue obj = eng->newObject();
typename M::const_iterator begin = map.constBegin();
typename M::const_iterator end = map.constEnd();
typename M::const_iterator it;
for (it = begin; it != end; ++it)
obj.setProperty(it.key(), qScriptValueFromValue(eng, it.value()));
return obj;
}
template <class M>
void qScriptValueToMap(const QScriptValue &value, M &map)
{
QScriptValueIterator it(value);
while (it.hasNext()) {
it.next();
map[it.name()] = qscriptvalue_cast<typename M::mapped_type>(it.value());
}
}
template<typename T>
int qScriptRegisterMapMetaType(
QScriptEngine *engine,
const QScriptValue &prototype = QScriptValue()
#ifndef qdoc
, T * /* dummy */ = 0
#endif
)
{
return qScriptRegisterMetaType<T>(engine, qScriptValueFromMap,
qScriptValueToMap, prototype);
}
/*
* Workaround the fact that QtScripts handling of variants seems a bit broken.
*/
QScriptValue variantToScriptValue(QScriptEngine *engine, QVariant var)
{
if (var.isNull()) {
return engine->nullValue();
}
switch(var.type())
{
case QVariant::Invalid:
return engine->nullValue();
case QVariant::Bool:
return QScriptValue(engine, var.toBool());
case QVariant::Date:
return engine->newDate(var.toDateTime());
case QVariant::DateTime:
return engine->newDate(var.toDateTime());
case QVariant::Double:
return QScriptValue(engine, var.toDouble());
case QVariant::Int:
case QVariant::LongLong:
return QScriptValue(engine, var.toInt());
case QVariant::String:
return QScriptValue(engine, var.toString());
case QVariant::Time: {
QDateTime t(QDate::currentDate(), var.toTime());
return engine->newDate(t);
}
case QVariant::UInt:
return QScriptValue(engine, var.toUInt());
default:
if (var.typeName() == QLatin1String("KUrl")) {
return QScriptValue(engine, var.value<KUrl>().prettyUrl());
} else if (var.typeName() == QLatin1String("QColor")) {
return QScriptValue(engine, var.value<QColor>().name());
} else if (var.typeName() == QLatin1String("QUrl")) {
return QScriptValue(engine, var.value<QUrl>().toString());
}
break;
}
return qScriptValueFromValue(engine, var);
}
QScriptValue qScriptValueFromData(QScriptEngine *engine, const DataEngine::Data &data)
{
DataEngine::Data::const_iterator begin = data.begin();
DataEngine::Data::const_iterator end = data.end();
DataEngine::Data::const_iterator it;
QScriptValue obj = engine->newObject();
for (it = begin; it != end; ++it) {
//kDebug() << "setting" << it.key() << "to" << it.value();
QString prop = it.key();
prop.replace(' ', '_');
obj.setProperty(prop, variantToScriptValue(engine, it.value()));
}
return obj;
}
#endif // BIND_DATAENGINE_H