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/****************************************************************************
**
** Copyright (C) 2011 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 "qv8contextwrapper_p.h"
#include "qv8engine_p.h"
#include <private/qdeclarativeengine_p.h>
#include <private/qdeclarativecontext_p.h>
QT_BEGIN_NAMESPACE
class QV8TypeResource : public QV8ObjectResource
{
V8_RESOURCE_TYPE(TypeType);
public:
QV8TypeResource(QV8Engine *engine);
virtual ~QV8TypeResource();
QV8TypeWrapper::TypeNameMode mode;
QDeclarativeGuard<QObject> object;
QDeclarativeType *type;
QDeclarativeTypeNameCache *typeNamespace;
};
QV8TypeResource::QV8TypeResource(QV8Engine *engine)
: QV8ObjectResource(engine), mode(QV8TypeWrapper::IncludeEnums), type(0), typeNamespace(0)
{
}
QV8TypeResource::~QV8TypeResource()
{
if (typeNamespace) typeNamespace->release();
}
QV8TypeWrapper::QV8TypeWrapper()
: m_engine(0)
{
}
QV8TypeWrapper::~QV8TypeWrapper()
{
}
void QV8TypeWrapper::destroy()
{
qPersistentDispose(m_constructor);
}
void QV8TypeWrapper::init(QV8Engine *engine)
{
m_engine = engine;
v8::Local<v8::FunctionTemplate> ft = v8::FunctionTemplate::New();
ft->InstanceTemplate()->SetNamedPropertyHandler(Getter, Setter);
ft->InstanceTemplate()->SetHasExternalResource(true);
m_constructor = qPersistentNew<v8::Function>(ft->GetFunction());
}
v8::Local<v8::Object> QV8TypeWrapper::newObject(QObject *o, QDeclarativeType *t, TypeNameMode mode)
{
Q_ASSERT(t);
// XXX NewInstance() should be optimized
v8::Local<v8::Object> rv = m_constructor->NewInstance();
QV8TypeResource *r = new QV8TypeResource(m_engine);
r->mode = mode; r->object = o; r->type = t;
rv->SetExternalResource(r);
return rv;
}
v8::Local<v8::Object> QV8TypeWrapper::newObject(QObject *o, QDeclarativeTypeNameCache *t, TypeNameMode mode)
{
Q_ASSERT(t);
// XXX NewInstance() should be optimized
v8::Local<v8::Object> rv = m_constructor->NewInstance();
QV8TypeResource *r = new QV8TypeResource(m_engine);
t->addref();
r->mode = mode; r->object = o; r->typeNamespace = t;
rv->SetExternalResource(r);
return rv;
}
v8::Handle<v8::Value> QV8TypeWrapper::Getter(v8::Local<v8::String> property,
const v8::AccessorInfo &info)
{
v8::Object::ExternalResource *r = info.This()->GetExternalResource();
QV8TypeResource *resource = v8_resource_cast<QV8TypeResource>(info.This());
if (!resource)
return v8::Undefined();
QV8Engine *v8engine = resource->engine;
QObject *object = resource->object;
QHashedV8String propertystring(property);
if (resource->type) {
QDeclarativeType *type = resource->type;
if (QV8Engine::startsWithUpper(property)) {
if (resource->mode == IncludeEnums) {
QString name = v8engine->toString(property);
// ### Optimize
QByteArray enumName = name.toUtf8();
const QMetaObject *metaObject = type->baseMetaObject();
for (int ii = metaObject->enumeratorCount() - 1; ii >= 0; --ii) {
QMetaEnum e = metaObject->enumerator(ii);
int value = e.keyToValue(enumName.constData());
if (value != -1)
return v8::Integer::New(value);
}
}
// Fall through to undefined
} else if (resource->object) {
QObject *ao = qmlAttachedPropertiesObjectById(type->attachedPropertiesId(), object);
if (ao)
return v8engine->qobjectWrapper()->getProperty(ao, propertystring,
QV8QObjectWrapper::IgnoreRevision);
// Fall through to undefined
}
// Fall through to undefined
} else if (resource->typeNamespace) {
QDeclarativeTypeNameCache *typeNamespace = resource->typeNamespace;
QDeclarativeTypeNameCache::Data *d = typeNamespace->data(propertystring);
Q_ASSERT(!d || !d->typeNamespace); // Nested namespaces not supported
if (d && d->type) {
return v8engine->typeWrapper()->newObject(object, d->type, resource->mode);
} else if (QDeclarativeMetaType::ModuleApiInstance *moduleApi = typeNamespace->moduleApi()) {
if (moduleApi->scriptCallback) {
moduleApi->scriptApi = moduleApi->scriptCallback(v8engine->engine(), v8engine->engine());
moduleApi->scriptCallback = 0;
moduleApi->qobjectCallback = 0;
} else if (moduleApi->qobjectCallback) {
moduleApi->qobjectApi = moduleApi->qobjectCallback(v8engine->engine(), v8engine->engine());
moduleApi->scriptCallback = 0;
moduleApi->qobjectCallback = 0;
}
if (moduleApi->qobjectApi) {
v8::Handle<v8::Value> rv = v8engine->qobjectWrapper()->getProperty(moduleApi->qobjectApi, propertystring, QV8QObjectWrapper::IgnoreRevision);
if (rv.IsEmpty())
return v8::Undefined();
else
return rv;
} else {
return v8::Undefined();
}
}
// Fall through to undefined
} else {
Q_ASSERT(!"Unreachable");
}
return v8::Undefined();
}
v8::Handle<v8::Value> QV8TypeWrapper::Setter(v8::Local<v8::String> property,
v8::Local<v8::Value> value,
const v8::AccessorInfo &info)
{
v8::Object::ExternalResource *r = info.This()->GetExternalResource();
QV8TypeResource *resource = v8_resource_cast<QV8TypeResource>(info.This());
if (!resource)
return value;
QV8Engine *v8engine = resource->engine;
// XXX TODO: Implement writes to module API objects
QHashedV8String propertystring(property);
if (resource->type && resource->object) {
QDeclarativeType *type = resource->type;
QObject *object = resource->object;
QObject *ao = qmlAttachedPropertiesObjectById(type->attachedPropertiesId(), object);
if (ao)
v8engine->qobjectWrapper()->setProperty(ao, propertystring, value,
QV8QObjectWrapper::IgnoreRevision);
} else if (resource->typeNamespace) {
if (QDeclarativeMetaType::ModuleApiInstance *moduleApi = resource->typeNamespace->moduleApi()) {
if (moduleApi->scriptCallback) {
moduleApi->scriptApi = moduleApi->scriptCallback(v8engine->engine(), v8engine->engine());
moduleApi->scriptCallback = 0;
moduleApi->qobjectCallback = 0;
} else if (moduleApi->qobjectCallback) {
moduleApi->qobjectApi = moduleApi->qobjectCallback(v8engine->engine(), v8engine->engine());
moduleApi->scriptCallback = 0;
moduleApi->qobjectCallback = 0;
}
if (moduleApi->qobjectApi)
v8engine->qobjectWrapper()->setProperty(moduleApi->qobjectApi, propertystring, value,
QV8QObjectWrapper::IgnoreRevision);
}
}
return value;
}
QT_END_NAMESPACE
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