/****************************************************************************
**
** Copyright (C) 2010 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.
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** 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
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**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
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**
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** Nokia at qt-info@nokia.com.
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****************************************************************************/
#include "private/qdeclarativeobjectscriptclass_p.h"
#include "private/qdeclarativeengine_p.h"
#include "private/qdeclarativecontext_p.h"
#include "private/qdeclarativedata_p.h"
#include "private/qdeclarativetypenamescriptclass_p.h"
#include "private/qdeclarativelistscriptclass_p.h"
#include "private/qdeclarativebinding_p.h"
#include "private/qdeclarativeguard_p.h"
#include "private/qdeclarativevmemetaobject_p.h"
#include <QtCore/qtimer.h>
#include <QtCore/qvarlengtharray.h>
#include <QtScript/qscriptcontextinfo.h>
Q_DECLARE_METATYPE(QScriptValue);
QT_BEGIN_NAMESPACE
struct ObjectData : public QScriptDeclarativeClass::Object {
ObjectData(QObject *o, int t) : object(o), type(t) {
if (o) {
QDeclarativeData *ddata = QDeclarativeData::get(object, true);
if (ddata) ddata->objectDataRefCount++;
}
}
virtual ~ObjectData() {
if (object && !object->parent()) {
QDeclarativeData *ddata = QDeclarativeData::get(object, false);
if (ddata && !ddata->indestructible && 0 == --ddata->objectDataRefCount)
object->deleteLater();
}
}
QDeclarativeGuard<QObject> object;
int type;
};
/*
The QDeclarativeObjectScriptClass handles property access for QObjects
via QtScript. It is also used to provide a more useful API in
QtScript for QML.
*/
QDeclarativeObjectScriptClass::QDeclarativeObjectScriptClass(QDeclarativeEngine *bindEngine)
: QScriptDeclarativeClass(QDeclarativeEnginePrivate::getScriptEngine(bindEngine)),
methods(bindEngine), lastData(0), engine(bindEngine)
{
QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
m_destroy = scriptEngine->newFunction(destroy);
m_destroyId = createPersistentIdentifier(QLatin1String("destroy"));
m_toString = scriptEngine->newFunction(tostring);
m_toStringId = createPersistentIdentifier(QLatin1String("toString"));
}
QDeclarativeObjectScriptClass::~QDeclarativeObjectScriptClass()
{
}
QScriptValue QDeclarativeObjectScriptClass::newQObject(QObject *object, int type)
{
QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
if (!object)
return scriptEngine->nullValue();
// return newObject(scriptEngine, this, new ObjectData(object, type));
if (QObjectPrivate::get(object)->wasDeleted)
return scriptEngine->undefinedValue();
QDeclarativeData *ddata = QDeclarativeData::get(object, true);
if (!ddata) {
return scriptEngine->undefinedValue();
} else if (!ddata->indestructible && !object->parent()) {
return newObject(scriptEngine, this, new ObjectData(object, type));
} else if (!ddata->scriptValue) {
ddata->scriptValue = new QScriptValue(newObject(scriptEngine, this, new ObjectData(object, type)));
return *ddata->scriptValue;
} else if (ddata->scriptValue->engine() == QDeclarativeEnginePrivate::getScriptEngine(engine)) {
return *ddata->scriptValue;
} else {
return newObject(scriptEngine, this, new ObjectData(object, type));
}
}
QObject *QDeclarativeObjectScriptClass::toQObject(const QScriptValue &value) const
{
return value.toQObject();
}
int QDeclarativeObjectScriptClass::objectType(const QScriptValue &value) const
{
if (scriptClass(value) != this)
return QVariant::Invalid;
Object *o = object(value);
return ((ObjectData*)(o))->type;
}
QScriptClass::QueryFlags
QDeclarativeObjectScriptClass::queryProperty(Object *object, const Identifier &name,
QScriptClass::QueryFlags flags)
{
return queryProperty(toQObject(object), name, flags, 0);
}
QScriptClass::QueryFlags
QDeclarativeObjectScriptClass::queryProperty(QObject *obj, const Identifier &name,
QScriptClass::QueryFlags flags, QDeclarativeContextData *evalContext,
QueryHints hints)
{
Q_UNUSED(flags);
lastData = 0;
lastTNData = 0;
if (name == m_destroyId.identifier ||
name == m_toStringId.identifier)
return QScriptClass::HandlesReadAccess;
if (!obj)
return 0;
QDeclarativeEnginePrivate *enginePrivate = QDeclarativeEnginePrivate::get(engine);
lastData = QDeclarativePropertyCache::property(engine, obj, name, local);
if (lastData)
return QScriptClass::HandlesReadAccess | QScriptClass::HandlesWriteAccess;
if (!(hints & SkipAttachedProperties)) {
if (!evalContext && context()) {
// Global object, QScriptContext activation object, QDeclarativeContext object
QScriptValue scopeNode = scopeChainValue(context(), -3);
if (scopeNode.isValid()) {
Q_ASSERT(scriptClass(scopeNode) == enginePrivate->contextClass);
evalContext = enginePrivate->contextClass->contextFromValue(scopeNode);
}
}
if (evalContext && evalContext->imports) {
QDeclarativeTypeNameCache::Data *data = evalContext->imports->data(name);
if (data) {
lastTNData = data;
return QScriptClass::HandlesReadAccess;
}
}
}
if (!(hints & ImplicitObject)) {
local.coreIndex = -1;
lastData = &local;
return QScriptClass::HandlesWriteAccess;
}
return 0;
}
QDeclarativeObjectScriptClass::Value
QDeclarativeObjectScriptClass::property(Object *object, const Identifier &name)
{
return property(toQObject(object), name);
}
QDeclarativeObjectScriptClass::Value
QDeclarativeObjectScriptClass::property(QObject *obj, const Identifier &name)
{
QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
if (name == m_destroyId.identifier)
return Value(scriptEngine, m_destroy);
else if (name == m_toStringId.identifier)
return Value(scriptEngine, m_toString);
if (lastData && !lastData->isValid())
return Value();
Q_ASSERT(obj);
QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(engine);
if (lastTNData) {
if (lastTNData->type)
return Value(scriptEngine, enginePriv->typeNameClass->newObject(obj, lastTNData->type));
else
return Value(scriptEngine, enginePriv->typeNameClass->newObject(obj, lastTNData->typeNamespace));
} else if (lastData->flags & QDeclarativePropertyCache::Data::IsFunction) {
if (lastData->flags & QDeclarativePropertyCache::Data::IsVMEFunction) {
return Value(scriptEngine, ((QDeclarativeVMEMetaObject *)(obj->metaObject()))->vmeMethod(lastData->coreIndex));
} else {
// Uncomment to use QtScript method call logic
// QScriptValue sobj = scriptEngine->newQObject(obj);
// return Value(scriptEngine, sobj.property(toString(name)));
return Value(scriptEngine, methods.newMethod(obj, lastData));
}
} else {
if (enginePriv->captureProperties && !(lastData->flags & QDeclarativePropertyCache::Data::IsConstant)) {
enginePriv->capturedProperties <<
QDeclarativeEnginePrivate::CapturedProperty(obj, lastData->coreIndex, lastData->notifyIndex);
}
if (QDeclarativeValueTypeFactory::isValueType((uint)lastData->propType)) {
QDeclarativeValueType *valueType = enginePriv->valueTypes[lastData->propType];
if (valueType)
return Value(scriptEngine, enginePriv->valueTypeClass->newObject(obj, lastData->coreIndex, valueType));
}
if (lastData->flags & QDeclarativePropertyCache::Data::IsQList) {
return Value(scriptEngine, enginePriv->listClass->newList(obj, lastData->coreIndex, lastData->propType));
} else if (lastData->flags & QDeclarativePropertyCache::Data::IsQObjectDerived) {
QObject *rv = 0;
void *args[] = { &rv, 0 };
QMetaObject::metacall(obj, QMetaObject::ReadProperty, lastData->coreIndex, args);
return Value(scriptEngine, newQObject(rv, lastData->propType));
} else if (lastData->flags & QDeclarativePropertyCache::Data::IsQScriptValue) {
QScriptValue rv = scriptEngine->nullValue();
void *args[] = { &rv, 0 };
QMetaObject::metacall(obj, QMetaObject::ReadProperty, lastData->coreIndex, args);
return Value(scriptEngine, rv);
} else if (lastData->propType == QMetaType::QReal) {
qreal rv = 0;
void *args[] = { &rv, 0 };
QMetaObject::metacall(obj, QMetaObject::ReadProperty, lastData->coreIndex, args);
return Value(scriptEngine, rv);
} else if (lastData->propType == QMetaType::Int || lastData->flags & QDeclarativePropertyCache::Data::IsEnumType) {
int rv = 0;
void *args[] = { &rv, 0 };
QMetaObject::metacall(obj, QMetaObject::ReadProperty, lastData->coreIndex, args);
return Value(scriptEngine, rv);
} else if (lastData->propType == QMetaType::Bool) {
bool rv = false;
void *args[] = { &rv, 0 };
QMetaObject::metacall(obj, QMetaObject::ReadProperty, lastData->coreIndex, args);
return Value(scriptEngine, rv);
} else if (lastData->propType == QMetaType::QString) {
QString rv;
void *args[] = { &rv, 0 };
QMetaObject::metacall(obj, QMetaObject::ReadProperty, lastData->coreIndex, args);
return Value(scriptEngine, rv);
} else if (lastData->propType == QMetaType::UInt) {
uint rv = 0;
void *args[] = { &rv, 0 };
QMetaObject::metacall(obj, QMetaObject::ReadProperty, lastData->coreIndex, args);
return Value(scriptEngine, rv);
} else if (lastData->propType == QMetaType::Float) {
float rv = 0;
void *args[] = { &rv, 0 };
QMetaObject::metacall(obj, QMetaObject::ReadProperty, lastData->coreIndex, args);
return Value(scriptEngine, rv);
} else if (lastData->propType == QMetaType::Double) {
double rv = 0;
void *args[] = { &rv, 0 };
QMetaObject::metacall(obj, QMetaObject::ReadProperty, lastData->coreIndex, args);
return Value(scriptEngine, rv);
} else {
QVariant var = obj->metaObject()->property(lastData->coreIndex).read(obj);
return Value(scriptEngine, enginePriv->scriptValueFromVariant(var));
}
}
}
void QDeclarativeObjectScriptClass::setProperty(Object *object,
const Identifier &name,
const QScriptValue &value)
{
return setProperty(toQObject(object), name, value, context());
}
void QDeclarativeObjectScriptClass::setProperty(QObject *obj,
const Identifier &name,
const QScriptValue &value,
QScriptContext *context,
QDeclarativeContextData *evalContext)
{
Q_UNUSED(name);
Q_ASSERT(obj);
Q_ASSERT(lastData);
Q_ASSERT(context);
if (!lastData->isValid()) {
QString error = QLatin1String("Cannot assign to non-existent property \"") +
toString(name) + QLatin1Char('\"');
context->throwError(error);
return;
}
if (!(lastData->flags & QDeclarativePropertyCache::Data::IsWritable) &&
!(lastData->flags & QDeclarativePropertyCache::Data::IsQList)) {
QString error = QLatin1String("Cannot assign to read-only property \"") +
toString(name) + QLatin1Char('\"');
context->throwError(error);
return;
}
QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(engine);
if (!evalContext) {
// Global object, QScriptContext activation object, QDeclarativeContext object
QScriptValue scopeNode = scopeChainValue(context, -3);
if (scopeNode.isValid()) {
Q_ASSERT(scriptClass(scopeNode) == enginePriv->contextClass);
evalContext = enginePriv->contextClass->contextFromValue(scopeNode);
}
}
QDeclarativeAbstractBinding *delBinding =
QDeclarativePropertyPrivate::setBinding(obj, lastData->coreIndex, -1, 0);
if (delBinding)
delBinding->destroy();
if (value.isNull() && lastData->flags & QDeclarativePropertyCache::Data::IsQObjectDerived) {
QObject *o = 0;
int status = -1;
int flags = 0;
void *argv[] = { &o, 0, &status, &flags };
QMetaObject::metacall(obj, QMetaObject::WriteProperty, lastData->coreIndex, argv);
} else if (value.isUndefined() && lastData->flags & QDeclarativePropertyCache::Data::IsResettable) {
void *a[] = { 0 };
QMetaObject::metacall(obj, QMetaObject::ResetProperty, lastData->coreIndex, a);
} else if (value.isUndefined() && lastData->propType == qMetaTypeId<QVariant>()) {
QDeclarativePropertyPrivate::write(obj, *lastData, QVariant(), evalContext);
} else if (value.isUndefined()) {
QString error = QLatin1String("Cannot assign [undefined] to ") +
QLatin1String(QMetaType::typeName(lastData->propType));
context->throwError(error);
} else if (!value.isRegExp() && value.isFunction()) {
QString error = QLatin1String("Cannot assign a function to a property.");
context->throwError(error);
} else {
QVariant v;
if (lastData->flags & QDeclarativePropertyCache::Data::IsQList)
v = enginePriv->scriptValueToVariant(value, qMetaTypeId<QList<QObject *> >());
else
v = enginePriv->scriptValueToVariant(value, lastData->propType);
if (!QDeclarativePropertyPrivate::write(obj, *lastData, v, evalContext)) {
const char *valueType = 0;
if (v.userType() == QVariant::Invalid) valueType = "null";
else valueType = QMetaType::typeName(v.userType());
QString error = QLatin1String("Cannot assign ") +
QLatin1String(valueType) +
QLatin1String(" to ") +
QLatin1String(QMetaType::typeName(lastData->propType));
context->throwError(error);
}
}
}
bool QDeclarativeObjectScriptClass::isQObject() const
{
return true;
}
QObject *QDeclarativeObjectScriptClass::toQObject(Object *object, bool *ok)
{
if (ok) *ok = true;
ObjectData *data = (ObjectData*)object;
return data->object.data();
}
QScriptValue QDeclarativeObjectScriptClass::tostring(QScriptContext *context, QScriptEngine *)
{
QObject* obj = context->thisObject().toQObject();
QString ret;
if(obj){
QString objectName = obj->objectName();
ret += QString::fromUtf8(obj->metaObject()->className());
ret += QLatin1String("(0x");
ret += QString::number((intptr_t)obj,16);
if (!objectName.isEmpty()) {
ret += QLatin1String(", \"");
ret += objectName;
ret += QLatin1Char('\"');
}
ret += QLatin1Char(')');
}else{
ret += QLatin1String("null");
}
return QScriptValue(ret);
}
QScriptValue QDeclarativeObjectScriptClass::destroy(QScriptContext *context, QScriptEngine *engine)
{
QDeclarativeEnginePrivate *p = QDeclarativeEnginePrivate::get(engine);
QScriptValue that = context->thisObject();
if (scriptClass(that) != p->objectClass)
return engine->undefinedValue();
ObjectData *data = (ObjectData *)p->objectClass->object(that);
if (!data->object)
return engine->undefinedValue();
QDeclarativeData *ddata = QDeclarativeData::get(data->object, false);
if (!ddata || ddata->indestructible)
return engine->currentContext()->throwError(QLatin1String("Invalid attempt to destroy() an indestructible object"));
QObject *obj = data->object;
int delay = 0;
if (context->argumentCount() > 0)
delay = context->argument(0).toInt32();
if (delay > 0)
QTimer::singleShot(delay, obj, SLOT(deleteLater()));
else
obj->deleteLater();
return engine->undefinedValue();
}
QStringList QDeclarativeObjectScriptClass::propertyNames(Object *object)
{
QObject *obj = toQObject(object);
if (!obj)
return QStringList();
QDeclarativeEnginePrivate *enginePrivate = QDeclarativeEnginePrivate::get(engine);
QDeclarativePropertyCache *cache = 0;
QDeclarativeData *ddata = QDeclarativeData::get(obj);
if (ddata)
cache = ddata->propertyCache;
if (!cache) {
cache = enginePrivate->cache(obj);
if (cache) {
if (ddata) { cache->addref(); ddata->propertyCache = cache; }
} else {
// Not cachable - fall back to QMetaObject (eg. dynamic meta object)
// XXX QDeclarativeOpenMetaObject has a cache, so this is suboptimal.
// XXX This is a workaround for QTBUG-9420.
const QMetaObject *mo = obj->metaObject();
QStringList r;
int pc = mo->propertyCount();
int po = mo->propertyOffset();
for (int i=po; i<pc; ++i)
r += QString::fromUtf8(mo->property(i).name());
return r;
}
}
return cache->propertyNames();
}
bool QDeclarativeObjectScriptClass::compare(Object *o1, Object *o2)
{
ObjectData *d1 = (ObjectData *)o1;
ObjectData *d2 = (ObjectData *)o2;
return d1 == d2 || d1->object == d2->object;
}
struct MethodData : public QScriptDeclarativeClass::Object {
MethodData(QObject *o, const QDeclarativePropertyCache::Data &d) : object(o), data(d) {}
QDeclarativeGuard<QObject> object;
QDeclarativePropertyCache::Data data;
};
QDeclarativeObjectMethodScriptClass::QDeclarativeObjectMethodScriptClass(QDeclarativeEngine *bindEngine)
: QScriptDeclarativeClass(QDeclarativeEnginePrivate::getScriptEngine(bindEngine)),
engine(bindEngine)
{
qRegisterMetaType<QList<QObject *> >("QList<QObject *>");
setSupportsCall(true);
QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
m_connect = scriptEngine->newFunction(connect);
m_connectId = createPersistentIdentifier(QLatin1String("connect"));
m_disconnect = scriptEngine->newFunction(disconnect);
m_disconnectId = createPersistentIdentifier(QLatin1String("disconnect"));
}
QDeclarativeObjectMethodScriptClass::~QDeclarativeObjectMethodScriptClass()
{
}
QScriptValue QDeclarativeObjectMethodScriptClass::newMethod(QObject *object, const QDeclarativePropertyCache::Data *method)
{
QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
return newObject(scriptEngine, this, new MethodData(object, *method));
}
QScriptValue QDeclarativeObjectMethodScriptClass::connect(QScriptContext *context, QScriptEngine *engine)
{
QDeclarativeEnginePrivate *p = QDeclarativeEnginePrivate::get(engine);
QScriptValue that = context->thisObject();
if (&p->objectClass->methods != scriptClass(that))
return engine->undefinedValue();
MethodData *data = (MethodData *)object(that);
if (!data->object || context->argumentCount() == 0)
return engine->undefinedValue();
QByteArray signal("2");
signal.append(data->object->metaObject()->method(data->data.coreIndex).signature());
if (context->argumentCount() == 1) {
qScriptConnect(data->object, signal.constData(), QScriptValue(), context->argument(0));
} else {
qScriptConnect(data->object, signal.constData(), context->argument(0), context->argument(1));
}
return engine->undefinedValue();
}
QScriptValue QDeclarativeObjectMethodScriptClass::disconnect(QScriptContext *context, QScriptEngine *engine)
{
QDeclarativeEnginePrivate *p = QDeclarativeEnginePrivate::get(engine);
QScriptValue that = context->thisObject();
if (&p->objectClass->methods != scriptClass(that))
return engine->undefinedValue();
MethodData *data = (MethodData *)object(that);
if (!data->object || context->argumentCount() == 0)
return engine->undefinedValue();
QByteArray signal("2");
signal.append(data->object->metaObject()->method(data->data.coreIndex).signature());
if (context->argumentCount() == 1) {
qScriptDisconnect(data->object, signal.constData(), QScriptValue(), context->argument(0));
} else {
qScriptDisconnect(data->object, signal.constData(), context->argument(0), context->argument(1));
}
return engine->undefinedValue();
}
QScriptClass::QueryFlags
QDeclarativeObjectMethodScriptClass::queryProperty(Object *, const Identifier &name,
QScriptClass::QueryFlags flags)
{
Q_UNUSED(flags);
if (name == m_connectId.identifier || name == m_disconnectId.identifier)
return QScriptClass::HandlesReadAccess;
else
return 0;
}
QDeclarativeObjectMethodScriptClass::Value
QDeclarativeObjectMethodScriptClass::property(Object *, const Identifier &name)
{
QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
if (name == m_connectId.identifier)
return Value(scriptEngine, m_connect);
else if (name == m_disconnectId.identifier)
return Value(scriptEngine, m_disconnect);
else
return Value();
}
namespace {
struct MetaCallArgument {
inline MetaCallArgument();
inline ~MetaCallArgument();
inline void *dataPtr();
inline void initAsType(int type, QDeclarativeEngine *);
void fromScriptValue(int type, QDeclarativeEngine *, const QScriptValue &);
inline QScriptDeclarativeClass::Value toValue(QDeclarativeEngine *);
private:
MetaCallArgument(const MetaCallArgument &);
inline void cleanup();
char data[4 * sizeof(void *)];
int type;
bool isObjectType;
};
}
MetaCallArgument::MetaCallArgument()
: type(QVariant::Invalid), isObjectType(false)
{
}
MetaCallArgument::~MetaCallArgument()
{
cleanup();
}
void MetaCallArgument::cleanup()
{
if (type == QMetaType::QString) {
((QString *)&data)->~QString();
} else if (type == -1 || type == qMetaTypeId<QVariant>()) {
((QVariant *)&data)->~QVariant();
} else if (type == qMetaTypeId<QScriptValue>()) {
((QScriptValue *)&data)->~QScriptValue();
} else if (type == qMetaTypeId<QList<QObject *> >()) {
((QList<QObject *> *)&data)->~QList<QObject *>();
}
}
void *MetaCallArgument::dataPtr()
{
if (type == -1)
return ((QVariant *)data)->data();
else
return (void *)&data;
}
void MetaCallArgument::initAsType(int callType, QDeclarativeEngine *e)
{
if (type != 0) { cleanup(); type = 0; }
if (callType == 0) return;
QScriptEngine *engine = QDeclarativeEnginePrivate::getScriptEngine(e);
if (callType == qMetaTypeId<QScriptValue>()) {
new (&data) QScriptValue(engine->undefinedValue());
type = callType;
} else if (callType == QMetaType::Int ||
callType == QMetaType::UInt ||
callType == QMetaType::Bool ||
callType == QMetaType::Double ||
callType == QMetaType::Float) {
type = callType;
} else if (callType == QMetaType::QObjectStar) {
*((QObject **)&data) = 0;
type = callType;
} else if (callType == QMetaType::QString) {
new (&data) QString();
type = callType;
} else if (callType == qMetaTypeId<QVariant>()) {
type = callType;
new (&data) QVariant();
} else if (callType == qMetaTypeId<QList<QObject *> >()) {
type = callType;
new (&data) QList<QObject *>();
} else {
type = -1;
new (&data) QVariant(callType, (void *)0);
}
}
void MetaCallArgument::fromScriptValue(int callType, QDeclarativeEngine *engine, const QScriptValue &value)
{
if (type != 0) { cleanup(); type = 0; }
if (callType == qMetaTypeId<QScriptValue>()) {
new (&data) QScriptValue(value);
type = qMetaTypeId<QScriptValue>();
} else if (callType == QMetaType::Int) {
*((int *)&data) = int(value.toInt32());
type = callType;
} else if (callType == QMetaType::UInt) {
*((uint *)&data) = uint(value.toUInt32());
type = callType;
} else if (callType == QMetaType::Bool) {
*((bool *)&data) = value.toBool();
type = callType;
} else if (callType == QMetaType::Double) {
*((double *)&data) = double(value.toNumber());
type = callType;
} else if (callType == QMetaType::Float) {
*((float *)&data) = float(value.toNumber());
type = callType;
} else if (callType == QMetaType::QString) {
if (value.isNull() || value.isUndefined())
new (&data) QString();
else
new (&data) QString(value.toString());
type = callType;
} else if (callType == QMetaType::QObjectStar) {
*((QObject **)&data) = value.toQObject();
type = callType;
} else if (callType == qMetaTypeId<QVariant>()) {
new (&data) QVariant(QDeclarativeEnginePrivate::get(engine)->scriptValueToVariant(value));
type = callType;
} else if (callType == qMetaTypeId<QList<QObject*> >()) {
QList<QObject *> *list = new (&data) QList<QObject *>();
if (value.isArray()) {
int length = value.property(QLatin1String("length")).toInt32();
for (int ii = 0; ii < length; ++ii) {
QScriptValue arrayItem = value.property(ii);
QObject *d = arrayItem.toQObject();
list->append(d);
}
} else if (QObject *d = value.toQObject()) {
list->append(d);
}
type = callType;
} else {
new (&data) QVariant();
type = -1;
QDeclarativeEnginePrivate *priv = QDeclarativeEnginePrivate::get(engine);
QVariant v = priv->scriptValueToVariant(value);
if (v.userType() == callType) {
*((QVariant *)&data) = v;
} else if (v.canConvert((QVariant::Type)callType)) {
*((QVariant *)&data) = v;
((QVariant *)&data)->convert((QVariant::Type)callType);
} else if (const QMetaObject *mo = priv->rawMetaObjectForType(callType)) {
QObject *obj = priv->toQObject(v);
if (obj) {
const QMetaObject *objMo = obj->metaObject();
while (objMo && objMo != mo) objMo = objMo->superClass();
if (!objMo) obj = 0;
}
*((QVariant *)&data) = QVariant(callType, &obj);
} else {
*((QVariant *)&data) = QVariant(callType, (void *)0);
}
}
}
QScriptDeclarativeClass::Value MetaCallArgument::toValue(QDeclarativeEngine *e)
{
QScriptEngine *engine = QDeclarativeEnginePrivate::getScriptEngine(e);
if (type == qMetaTypeId<QScriptValue>()) {
return QScriptDeclarativeClass::Value(engine, *((QScriptValue *)&data));
} else if (type == QMetaType::Int) {
return QScriptDeclarativeClass::Value(engine, *((int *)&data));
} else if (type == QMetaType::UInt) {
return QScriptDeclarativeClass::Value(engine, *((uint *)&data));
} else if (type == QMetaType::Bool) {
return QScriptDeclarativeClass::Value(engine, *((bool *)&data));
} else if (type == QMetaType::Double) {
return QScriptDeclarativeClass::Value(engine, *((double *)&data));
} else if (type == QMetaType::Float) {
return QScriptDeclarativeClass::Value(engine, *((float *)&data));
} else if (type == QMetaType::QString) {
return QScriptDeclarativeClass::Value(engine, *((QString *)&data));
} else if (type == QMetaType::QObjectStar) {
QObject *object = *((QObject **)&data);
if (object)
QDeclarativeData::get(object, true)->setImplicitDestructible();
QDeclarativeEnginePrivate *priv = QDeclarativeEnginePrivate::get(e);
return QScriptDeclarativeClass::Value(engine, priv->objectClass->newQObject(object));
} else if (type == qMetaTypeId<QList<QObject *> >()) {
QList<QObject *> &list = *(QList<QObject *>*)&data;
QScriptValue rv = engine->newArray(list.count());
QDeclarativeEnginePrivate *priv = QDeclarativeEnginePrivate::get(e);
for (int ii = 0; ii < list.count(); ++ii) {
QObject *object = list.at(ii);
QDeclarativeData::get(object, true)->setImplicitDestructible();
rv.setProperty(ii, priv->objectClass->newQObject(object));
}
return QScriptDeclarativeClass::Value(engine, rv);
} else if (type == -1 || type == qMetaTypeId<QVariant>()) {
return QScriptDeclarativeClass::Value(engine, QDeclarativeEnginePrivate::get(e)->scriptValueFromVariant(*((QVariant *)&data)));
} else {
return QScriptDeclarativeClass::Value();
}
}
int QDeclarativeObjectMethodScriptClass::enumType(const QMetaObject *meta, const QString &strname)
{
QByteArray str = strname.toUtf8();
QByteArray scope;
QByteArray name;
int scopeIdx = str.lastIndexOf("::");
if (scopeIdx != -1) {
scope = str.left(scopeIdx);
name = str.mid(scopeIdx + 2);
} else {
name = str;
}
for (int i = meta->enumeratorCount() - 1; i >= 0; --i) {
QMetaEnum m = meta->enumerator(i);
if ((m.name() == name) && (scope.isEmpty() || (m.scope() == scope)))
return QVariant::Int;
}
return QVariant::Invalid;
}
QDeclarativeObjectMethodScriptClass::Value QDeclarativeObjectMethodScriptClass::call(Object *o, QScriptContext *ctxt)
{
MethodData *method = static_cast<MethodData *>(o);
if (method->data.flags & QDeclarativePropertyCache::Data::HasArguments) {
QMetaMethod m = method->object->metaObject()->method(method->data.coreIndex);
QList<QByteArray> argTypeNames = m.parameterTypes();
QVarLengthArray<int, 9> argTypes(argTypeNames.count());
// ### Cache
for (int ii = 0; ii < argTypeNames.count(); ++ii) {
argTypes[ii] = QMetaType::type(argTypeNames.at(ii));
if (argTypes[ii] == QVariant::Invalid)
argTypes[ii] = enumType(method->object->metaObject(), argTypeNames.at(ii));
if (argTypes[ii] == QVariant::Invalid)
return Value(ctxt, ctxt->throwError(QString::fromLatin1("Unknown method parameter type: %1").arg(QLatin1String(argTypeNames.at(ii)))));
}
if (argTypes.count() > ctxt->argumentCount())
return Value(ctxt, ctxt->throwError(QLatin1String("Insufficient arguments")));
QVarLengthArray<MetaCallArgument, 9> args(argTypes.count() + 1);
args[0].initAsType(method->data.propType, engine);
for (int ii = 0; ii < argTypes.count(); ++ii)
args[ii + 1].fromScriptValue(argTypes[ii], engine, ctxt->argument(ii));
QVarLengthArray<void *, 9> argData(args.count());
for (int ii = 0; ii < args.count(); ++ii)
argData[ii] = args[ii].dataPtr();
QMetaObject::metacall(method->object, QMetaObject::InvokeMetaMethod, method->data.coreIndex, argData.data());
return args[0].toValue(engine);
} else if (method->data.propType != 0) {
MetaCallArgument arg;
arg.initAsType(method->data.propType, engine);
void *args[] = { arg.dataPtr() };
QMetaObject::metacall(method->object, QMetaObject::InvokeMetaMethod, method->data.coreIndex, args);
return arg.toValue(engine);
} else {
void *args[] = { 0 };
QMetaObject::metacall(method->object, QMetaObject::InvokeMetaMethod, method->data.coreIndex, args);
return Value();
}
return Value();
}
QT_END_NAMESPACE