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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qmlvmemetaobject_p.h"
#include <qml.h>
#include <private/qmlrefcount_p.h>
#include <QColor>
#include <QDate>
#include <QtCore/qlist.h>
#include <QtCore/qdebug.h>
#include <qmlexpression.h>
#include <private/qmlcontext_p.h>
QT_BEGIN_NAMESPACE
QmlVMEMetaObject::QmlVMEMetaObject(QObject *obj,
const QMetaObject *other,
const QmlVMEMetaData *meta,
QmlRefCount *rc)
: object(obj), ref(rc), ctxt(qmlContext(obj)), metaData(meta), parent(0)
{
if (ref)
ref->addref();
*static_cast<QMetaObject *>(this) = *other;
this->d.superdata = obj->metaObject();
QObjectPrivate *op = QObjectPrivate::get(obj);
if (op->metaObject)
parent = static_cast<QAbstractDynamicMetaObject*>(op->metaObject);
op->metaObject = this;
propOffset = QAbstractDynamicMetaObject::propertyOffset();
methodOffset = QAbstractDynamicMetaObject::methodOffset();
data = new QVariant[metaData->propertyCount];
aConnected.resize(metaData->aliasCount);
int list_type = qMetaTypeId<QmlList<QObject*>* >();
// ### Optimize
for (int ii = 0; ii < metaData->propertyCount; ++ii) {
int t = (metaData->propertyData() + ii)->propertyType;
if (t == list_type) {
listProperties.append(new List(this, ii));
data[ii] = QVariant::fromValue((QmlList<QObject *>*)listProperties.last());
} else if (t != -1) {
data[ii] = QVariant((QVariant::Type)t);
}
}
}
QmlVMEMetaObject::~QmlVMEMetaObject()
{
if (ref)
ref->release();
if (parent)
delete parent;
qDeleteAll(listProperties);
delete [] data;
}
int QmlVMEMetaObject::metaCall(QMetaObject::Call c, int _id, void **a)
{
int id = _id;
if(c == QMetaObject::WriteProperty) {
int flags = *reinterpret_cast<int*>(a[3]);
if (!(flags & QmlMetaProperty::BypassInterceptor)
&& !aInterceptors.isEmpty()
&& aInterceptors.testBit(id)) {
QPair<int, QmlPropertyValueInterceptor*> pair = interceptors.value(id);
int valueIndex = pair.first;
QmlPropertyValueInterceptor *vi = pair.second;
QVariant::Type type = property(id).type();
if (type != QVariant::Invalid) {
if (valueIndex != -1) {
QmlEnginePrivate *ep = ctxt?QmlEnginePrivate::get(ctxt->engine()):0;
QmlValueType *valueType = 0;
if (ep) valueType = ep->valueTypes[type];
else valueType = QmlValueTypeFactory::valueType(type);
Q_ASSERT(valueType);
valueType->setValue(QVariant(type, a[0]));
QMetaProperty valueProp = valueType->metaObject()->property(valueIndex);
vi->write(valueProp.read(valueType));
if (!ep) delete valueType;
return -1;
} else {
vi->write(QVariant(type, a[0]));
return -1;
}
}
}
}
if(c == QMetaObject::ReadProperty || c == QMetaObject::WriteProperty) {
if (id >= propOffset) {
id -= propOffset;
if (id < metaData->propertyCount) {
int t = (metaData->propertyData() + id)->propertyType;
bool needActivate = false;
if (t == -1) {
if (c == QMetaObject::ReadProperty) {
*reinterpret_cast<QVariant *>(a[0]) = data[id];
} else if (c == QMetaObject::WriteProperty) {
needActivate =
(data[id] != *reinterpret_cast<QVariant *>(a[0]));
data[id] = *reinterpret_cast<QVariant *>(a[0]);
}
} else {
if (c == QMetaObject::ReadProperty) {
switch(t) {
case QVariant::Int:
*reinterpret_cast<int *>(a[0]) = data[id].toInt();
break;
case QVariant::Bool:
*reinterpret_cast<bool *>(a[0]) = data[id].toBool();
break;
case QVariant::Double:
*reinterpret_cast<double *>(a[0]) = data[id].toDouble();
break;
case QVariant::String:
*reinterpret_cast<QString *>(a[0]) = data[id].toString();
break;
case QVariant::Url:
*reinterpret_cast<QUrl *>(a[0]) = data[id].toUrl();
break;
case QVariant::Color:
*reinterpret_cast<QColor *>(a[0]) = data[id].value<QColor>();
break;
case QVariant::Date:
*reinterpret_cast<QDate *>(a[0]) = data[id].toDate();
break;
case QMetaType::QObjectStar:
*reinterpret_cast<QObject **>(a[0]) = data[id].value<QObject*>();
break;
default:
break;
}
if (t == qMetaTypeId<QmlList<QObject*>* >()) {
*reinterpret_cast<QmlList<QObject *> **>(a[0]) = data[id].value<QmlList<QObject*>*>();
}
} else if (c == QMetaObject::WriteProperty) {
QVariant value = QVariant((QVariant::Type)data[id].type(), a[0]);
needActivate = (data[id] != value);
data[id] = value;
}
}
if (c == QMetaObject::WriteProperty && needActivate) {
activate(object, methodOffset + id, 0);
}
return -1;
}
id -= metaData->propertyCount;
if (id < metaData->aliasCount) {
QmlVMEMetaData::AliasData *d = metaData->aliasData() + id;
if (d->flags & QML_ALIAS_FLAG_PTR && c == QMetaObject::ReadProperty)
*reinterpret_cast<void **>(a[0]) = 0;
if (!ctxt) return -1;
QmlContextPrivate *ctxtPriv =
(QmlContextPrivate *)QObjectPrivate::get(ctxt);
QObject *target = ctxtPriv->idValues[d->contextIdx].data();
if (!target)
return -1;
if (c == QMetaObject::ReadProperty && !aConnected.testBit(id)) {
int sigIdx = methodOffset + id + metaData->propertyCount;
QMetaObject::connect(ctxt, d->contextIdx + ctxtPriv->notifyIndex, object, sigIdx);
if (d->propertyIdx != -1) {
QMetaProperty prop =
target->metaObject()->property(d->propertyIdx);
if (prop.hasNotifySignal())
QMetaObject::connect(target, prop.notifySignalIndex(),
object, sigIdx);
}
aConnected.setBit(id);
}
if (d->propertyIdx == -1) {
*reinterpret_cast<QObject **>(a[0]) = target;
return -1;
} else {
return QMetaObject::metacall(target, c, d->propertyIdx, a);
}
}
return -1;
}
} else if(c == QMetaObject::InvokeMetaMethod) {
if (id >= methodOffset) {
id -= methodOffset;
int plainSignals = metaData->signalCount + metaData->propertyCount +
metaData->aliasCount;
if (id < plainSignals) {
QMetaObject::activate(object, _id, a);
return -1;
}
id -= plainSignals;
if (id < metaData->methodCount) {
QmlVMEMetaData::MethodData *data = metaData->methodData() + id;
const QChar *body =
(const QChar *)(((const char*)metaData) + data->bodyOffset);
QString code = QString::fromRawData(body, data->bodyLength);
QVariant rv;
if (0 == (metaData->methodData() + id)->parameterCount) {
QmlExpression expr(ctxt, code, object);
expr.setTrackChange(false);
rv = expr.value();
} else {
QmlContext newCtxt(ctxt);
QMetaMethod m = method(_id);
QList<QByteArray> names = m.parameterNames();
for (int ii = 0; ii < names.count(); ++ii)
newCtxt.setContextProperty(QString::fromLatin1(names.at(ii)), *(QVariant *)a[ii + 1]);
QmlExpression expr(&newCtxt, code, object);
expr.setTrackChange(false);
rv = expr.value();
}
if (a[0]) *reinterpret_cast<QVariant *>(a[0]) = rv;
}
return -1;
}
}
if (parent)
return parent->metaCall(c, _id, a);
else
return object->qt_metacall(c, _id, a);
}
void QmlVMEMetaObject::listChanged(int id)
{
activate(object, methodOffset + id, 0);
}
void QmlVMEMetaObject::registerInterceptor(int index, int valueIndex, QmlPropertyValueInterceptor *interceptor)
{
if (aInterceptors.isEmpty())
aInterceptors.resize(propertyCount() + metaData->propertyCount);
aInterceptors.setBit(index);
interceptors.insert(index, qMakePair(valueIndex, interceptor));
}
QT_END_NAMESPACE
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