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#include "qmlglobalscriptclass_p.h"
#include <QtScript/qscriptstring.h>
#include <QtScript/qscriptengine.h>
#include <QtScript/qscriptvalueiterator.h>

QT_BEGIN_NAMESPACE

/*
    Used to prevent any writes to the global object.
*/
QmlGlobalScriptClass::QmlGlobalScriptClass(QScriptEngine *engine)
: QScriptClass(engine)
{
    QScriptValue v = engine->newObject();
    globalObject = engine->globalObject();

    QScriptValueIterator iter(globalObject);
    while (iter.hasNext()) {
        iter.next();
        v.setProperty(iter.scriptName(), iter.value());
    }

    v.setScriptClass(this);
    engine->setGlobalObject(v);
}

QScriptClass::QueryFlags 
QmlGlobalScriptClass::queryProperty(const QScriptValue &object,
                                    const QScriptString &name,
                                    QueryFlags flags, uint *id)
{
    Q_UNUSED(object);
    Q_UNUSED(name);
    Q_UNUSED(flags);
    Q_UNUSED(id);
    return HandlesReadAccess | HandlesWriteAccess;
}

QScriptValue 
QmlGlobalScriptClass::property(const QScriptValue &object,
                               const QScriptString &name, 
                               uint id)
{
    Q_UNUSED(object);
    Q_UNUSED(name);
    Q_UNUSED(id);
    return engine()->undefinedValue();
}

void QmlGlobalScriptClass::setProperty(QScriptValue &object, 
                                       const QScriptString &name,
                                       uint id, const QScriptValue &value)
{
    Q_UNUSED(object);
    Q_UNUSED(id);
    Q_UNUSED(value);
    QString error = QLatin1String("Invalid write to global property \"") + 
                    name.toString() + QLatin1String("\"");
    engine()->currentContext()->throwError(error);
}

QT_END_NAMESPACE