/**************************************************************************** ** ** 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. ** ** $QT_BEGIN_LICENSE:LGPL$ ** 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 "private/qdeclarativevmemetaobject_p.h" #include "qdeclarative.h" #include "private/qdeclarativerefcount_p.h" #include "qdeclarativeexpression.h" #include "private/qdeclarativeexpression_p.h" #include "private/qdeclarativecontext_p.h" Q_DECLARE_METATYPE(QScriptValue); QT_BEGIN_NAMESPACE class QDeclarativeVMEVariant { public: inline QDeclarativeVMEVariant(); inline ~QDeclarativeVMEVariant(); inline const void *dataPtr() const; inline void *dataPtr(); inline int dataType() const; inline QObject *asQObject(); inline const QVariant &asQVariant(); inline int asInt(); inline bool asBool(); inline double asDouble(); inline const QString &asQString(); inline const QUrl &asQUrl(); inline const QColor &asQColor(); inline const QTime &asQTime(); inline const QDate &asQDate(); inline const QDateTime &asQDateTime(); inline const QScriptValue &asQScriptValue(); inline void setValue(QObject *); inline void setValue(const QVariant &); inline void setValue(int); inline void setValue(bool); inline void setValue(double); inline void setValue(const QString &); inline void setValue(const QUrl &); inline void setValue(const QColor &); inline void setValue(const QTime &); inline void setValue(const QDate &); inline void setValue(const QDateTime &); inline void setValue(const QScriptValue &); private: int type; void *data[4]; // Large enough to hold all types inline void cleanup(); }; QDeclarativeVMEVariant::QDeclarativeVMEVariant() : type(QVariant::Invalid) { } QDeclarativeVMEVariant::~QDeclarativeVMEVariant() { cleanup(); } void QDeclarativeVMEVariant::cleanup() { if (type == QVariant::Invalid) { } else if (type == QMetaType::Int || type == QMetaType::Bool || type == QMetaType::Double) { type = QVariant::Invalid; } else if (type == QMetaType::QObjectStar) { ((QDeclarativeGuard*)dataPtr())->~QDeclarativeGuard(); type = QVariant::Invalid; } else if (type == QMetaType::QString) { ((QString *)dataPtr())->~QString(); type = QVariant::Invalid; } else if (type == QMetaType::QUrl) { ((QUrl *)dataPtr())->~QUrl(); type = QVariant::Invalid; } else if (type == QMetaType::QColor) { ((QColor *)dataPtr())->~QColor(); type = QVariant::Invalid; } else if (type == QMetaType::QTime) { ((QTime *)dataPtr())->~QTime(); type = QVariant::Invalid; } else if (type == QMetaType::QDate) { ((QDate *)dataPtr())->~QDate(); type = QVariant::Invalid; } else if (type == QMetaType::QDateTime) { ((QDateTime *)dataPtr())->~QDateTime(); type = QVariant::Invalid; } else if (type == qMetaTypeId()) { ((QVariant *)dataPtr())->~QVariant(); type = QVariant::Invalid; } else if (type == qMetaTypeId()) { ((QScriptValue *)dataPtr())->~QScriptValue(); type = QVariant::Invalid; } } int QDeclarativeVMEVariant::dataType() const { return type; } const void *QDeclarativeVMEVariant::dataPtr() const { return &data; } void *QDeclarativeVMEVariant::dataPtr() { return &data; } QObject *QDeclarativeVMEVariant::asQObject() { if (type != QMetaType::QObjectStar) setValue((QObject *)0); return *(QDeclarativeGuard *)(dataPtr()); } const QVariant &QDeclarativeVMEVariant::asQVariant() { if (type != QMetaType::QVariant) setValue(QVariant()); return *(QVariant *)(dataPtr()); } int QDeclarativeVMEVariant::asInt() { if (type != QMetaType::Int) setValue(int(0)); return *(int *)(dataPtr()); } bool QDeclarativeVMEVariant::asBool() { if (type != QMetaType::Bool) setValue(bool(false)); return *(bool *)(dataPtr()); } double QDeclarativeVMEVariant::asDouble() { if (type != QMetaType::Double) setValue(double(0)); return *(double *)(dataPtr()); } const QString &QDeclarativeVMEVariant::asQString() { if (type != QMetaType::QString) setValue(QString()); return *(QString *)(dataPtr()); } const QUrl &QDeclarativeVMEVariant::asQUrl() { if (type != QMetaType::QUrl) setValue(QUrl()); return *(QUrl *)(dataPtr()); } const QColor &QDeclarativeVMEVariant::asQColor() { if (type != QMetaType::QColor) setValue(QColor()); return *(QColor *)(dataPtr()); } const QTime &QDeclarativeVMEVariant::asQTime() { if (type != QMetaType::QTime) setValue(QTime()); return *(QTime *)(dataPtr()); } const QDate &QDeclarativeVMEVariant::asQDate() { if (type != QMetaType::QDate) setValue(QDate()); return *(QDate *)(dataPtr()); } const QDateTime &QDeclarativeVMEVariant::asQDateTime() { if (type != QMetaType::QDateTime) setValue(QDateTime()); return *(QDateTime *)(dataPtr()); } const QScriptValue &QDeclarativeVMEVariant::asQScriptValue() { if (type != qMetaTypeId()) setValue(QScriptValue()); return *(QScriptValue *)(dataPtr()); } void QDeclarativeVMEVariant::setValue(QObject *v) { if (type != QMetaType::QObjectStar) { cleanup(); type = QMetaType::QObjectStar; new (dataPtr()) QDeclarativeGuard(); } *(QDeclarativeGuard*)(dataPtr()) = v; } void QDeclarativeVMEVariant::setValue(const QVariant &v) { if (type != qMetaTypeId()) { cleanup(); type = qMetaTypeId(); new (dataPtr()) QVariant(v); } else { *(QVariant *)(dataPtr()) = v; } } void QDeclarativeVMEVariant::setValue(int v) { if (type != QMetaType::Int) { cleanup(); type = QMetaType::Int; } *(int *)(dataPtr()) = v; } void QDeclarativeVMEVariant::setValue(bool v) { if (type != QMetaType::Bool) { cleanup(); type = QMetaType::Bool; } *(bool *)(dataPtr()) = v; } void QDeclarativeVMEVariant::setValue(double v) { if (type != QMetaType::Double) { cleanup(); type = QMetaType::Double; } *(double *)(dataPtr()) = v; } void QDeclarativeVMEVariant::setValue(const QString &v) { if (type != QMetaType::QString) { cleanup(); type = QMetaType::QString; new (dataPtr()) QString(v); } else { *(QString *)(dataPtr()) = v; } } void QDeclarativeVMEVariant::setValue(const QUrl &v) { if (type != QMetaType::QUrl) { cleanup(); type = QMetaType::QUrl; new (dataPtr()) QUrl(v); } else { *(QUrl *)(dataPtr()) = v; } } void QDeclarativeVMEVariant::setValue(const QColor &v) { if (type != QMetaType::QColor) { cleanup(); type = QMetaType::QColor; new (dataPtr()) QColor(v); } else { *(QColor *)(dataPtr()) = v; } } void QDeclarativeVMEVariant::setValue(const QTime &v) { if (type != QMetaType::QTime) { cleanup(); type = QMetaType::QTime; new (dataPtr()) QTime(v); } else { *(QTime *)(dataPtr()) = v; } } void QDeclarativeVMEVariant::setValue(const QDate &v) { if (type != QMetaType::QDate) { cleanup(); type = QMetaType::QDate; new (dataPtr()) QDate(v); } else { *(QDate *)(dataPtr()) = v; } } void QDeclarativeVMEVariant::setValue(const QDateTime &v) { if (type != QMetaType::QDateTime) { cleanup(); type = QMetaType::QDateTime; new (dataPtr()) QDateTime(v); } else { *(QDateTime *)(dataPtr()) = v; } } void QDeclarativeVMEVariant::setValue(const QScriptValue &v) { if (type != qMetaTypeId()) { cleanup(); type = qMetaTypeId(); new (dataPtr()) QScriptValue(v); } else { *(QScriptValue *)(dataPtr()) = v; } } QDeclarativeVMEMetaObject::QDeclarativeVMEMetaObject(QObject *obj, const QMetaObject *other, const QDeclarativeVMEMetaData *meta, QDeclarativeCompiledData *cdata) : object(obj), compiledData(cdata), ctxt(QDeclarativeData::get(obj, true)->outerContext), metaData(meta), data(0), methods(0), parent(0) { compiledData->addref(); *static_cast(this) = *other; this->d.superdata = obj->metaObject(); QObjectPrivate *op = QObjectPrivate::get(obj); if (op->metaObject) parent = static_cast(op->metaObject); op->metaObject = this; propOffset = QAbstractDynamicMetaObject::propertyOffset(); methodOffset = QAbstractDynamicMetaObject::methodOffset(); data = new QDeclarativeVMEVariant[metaData->propertyCount]; aConnected.resize(metaData->aliasCount); int list_type = qMetaTypeId >(); // ### Optimize for (int ii = 0; ii < metaData->propertyCount; ++ii) { int t = (metaData->propertyData() + ii)->propertyType; if (t == list_type) { listProperties.append(List(methodOffset + ii)); data[ii].setValue(listProperties.count() - 1); } } } QDeclarativeVMEMetaObject::~QDeclarativeVMEMetaObject() { compiledData->release(); delete parent; delete [] data; delete [] methods; } int QDeclarativeVMEMetaObject::metaCall(QMetaObject::Call c, int _id, void **a) { int id = _id; if(c == QMetaObject::WriteProperty) { int flags = *reinterpret_cast(a[3]); if (!(flags & QDeclarativePropertyPrivate::BypassInterceptor) && !aInterceptors.isEmpty() && aInterceptors.testBit(id)) { QPair pair = interceptors.value(id); int valueIndex = pair.first; QDeclarativePropertyValueInterceptor *vi = pair.second; int type = property(id).userType(); if (type != QVariant::Invalid) { if (valueIndex != -1) { QDeclarativeEnginePrivate *ep = ctxt?QDeclarativeEnginePrivate::get(ctxt->engine):0; QDeclarativeValueType *valueType = 0; if (ep) valueType = ep->valueTypes[type]; else valueType = QDeclarativeValueTypeFactory::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(a[0]) = readVarPropertyAsVariant(id); } else if (c == QMetaObject::WriteProperty) { writeVarProperty(id, *reinterpret_cast(a[0])); } } else { if (c == QMetaObject::ReadProperty) { switch(t) { case QVariant::Int: *reinterpret_cast(a[0]) = data[id].asInt(); break; case QVariant::Bool: *reinterpret_cast(a[0]) = data[id].asBool(); break; case QVariant::Double: *reinterpret_cast(a[0]) = data[id].asDouble(); break; case QVariant::String: *reinterpret_cast(a[0]) = data[id].asQString(); break; case QVariant::Url: *reinterpret_cast(a[0]) = data[id].asQUrl(); break; case QVariant::Color: *reinterpret_cast(a[0]) = data[id].asQColor(); break; case QVariant::Date: *reinterpret_cast(a[0]) = data[id].asQDate(); break; case QVariant::DateTime: *reinterpret_cast(a[0]) = data[id].asQDateTime(); break; case QMetaType::QObjectStar: *reinterpret_cast(a[0]) = data[id].asQObject(); break; default: break; } if (t == qMetaTypeId >()) { int listIndex = data[id].asInt(); const List *list = &listProperties.at(listIndex); *reinterpret_cast *>(a[0]) = QDeclarativeListProperty(object, (void *)list, list_append, list_count, list_at, list_clear); } } else if (c == QMetaObject::WriteProperty) { switch(t) { case QVariant::Int: needActivate = *reinterpret_cast(a[0]) != data[id].asInt(); data[id].setValue(*reinterpret_cast(a[0])); break; case QVariant::Bool: needActivate = *reinterpret_cast(a[0]) != data[id].asBool(); data[id].setValue(*reinterpret_cast(a[0])); break; case QVariant::Double: needActivate = *reinterpret_cast(a[0]) != data[id].asDouble(); data[id].setValue(*reinterpret_cast(a[0])); break; case QVariant::String: needActivate = *reinterpret_cast(a[0]) != data[id].asQString(); data[id].setValue(*reinterpret_cast(a[0])); break; case QVariant::Url: needActivate = *reinterpret_cast(a[0]) != data[id].asQUrl(); data[id].setValue(*reinterpret_cast(a[0])); break; case QVariant::Color: needActivate = *reinterpret_cast(a[0]) != data[id].asQColor(); data[id].setValue(*reinterpret_cast(a[0])); break; case QVariant::Date: needActivate = *reinterpret_cast(a[0]) != data[id].asQDate(); data[id].setValue(*reinterpret_cast(a[0])); break; case QVariant::DateTime: needActivate = *reinterpret_cast(a[0]) != data[id].asQDateTime(); data[id].setValue(*reinterpret_cast(a[0])); break; case QMetaType::QObjectStar: needActivate = *reinterpret_cast(a[0]) != data[id].asQObject(); data[id].setValue(*reinterpret_cast(a[0])); break; default: break; } } } if (c == QMetaObject::WriteProperty && needActivate) { activate(object, methodOffset + id, 0); } return -1; } id -= metaData->propertyCount; if (id < metaData->aliasCount) { QDeclarativeVMEMetaData::AliasData *d = metaData->aliasData() + id; if (d->flags & QML_ALIAS_FLAG_PTR && c == QMetaObject::ReadProperty) *reinterpret_cast(a[0]) = 0; if (!ctxt) return -1; QDeclarativeContext *context = ctxt->asQDeclarativeContext(); QDeclarativeContextPrivate *ctxtPriv = QDeclarativeContextPrivate::get(context); QObject *target = ctxtPriv->data->idValues[d->contextIdx].data(); if (!target) return -1; if (c == QMetaObject::ReadProperty && !aConnected.testBit(id)) { int sigIdx = methodOffset + id + metaData->propertyCount; QMetaObject::connect(context, 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(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) { if (!ctxt->engine) return -1; // We can't run the method QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(ctxt->engine); QScriptValue function = method(id); QScriptValueList args; QDeclarativeVMEMetaData::MethodData *data = metaData->methodData() + id; if (data->parameterCount) { for (int ii = 0; ii < data->parameterCount; ++ii) { args << ep->scriptValueFromVariant(*(QVariant *)a[ii + 1]); } } QScriptValue rv = function.call(ep->objectClass->newQObject(object), args); if (a[0]) *reinterpret_cast(a[0]) = ep->scriptValueToVariant(rv); return -1; } return -1; } } if (parent) return parent->metaCall(c, _id, a); else return object->qt_metacall(c, _id, a); } QScriptValue QDeclarativeVMEMetaObject::method(int index) { if (!methods) methods = new QScriptValue[metaData->methodCount]; if (!methods[index].isValid()) { QDeclarativeVMEMetaData::MethodData *data = metaData->methodData() + index; const QChar *body = (const QChar *)(((const char*)metaData) + data->bodyOffset); QString code = QString::fromRawData(body, data->bodyLength); // XXX Use QScriptProgram // XXX We should evaluate all methods in a single big script block to // improve the call time between dynamic methods defined on the same // object methods[index] = QDeclarativeExpressionPrivate::evalInObjectScope(ctxt, object, code, ctxt->url.toString(), data->lineNumber, 0); } return methods[index]; } QScriptValue QDeclarativeVMEMetaObject::readVarProperty(int id) { if (data[id].dataType() == qMetaTypeId()) return data[id].asQScriptValue(); else if (data[id].dataType() == QMetaType::QObjectStar) return QDeclarativeEnginePrivate::get(ctxt->engine)->objectClass->newQObject(data[id].asQObject()); else return QDeclarativeEnginePrivate::get(ctxt->engine)->scriptValueFromVariant(data[id].asQVariant()); } QVariant QDeclarativeVMEMetaObject::readVarPropertyAsVariant(int id) { if (data[id].dataType() == qMetaTypeId()) return QDeclarativeEnginePrivate::get(ctxt->engine)->scriptValueToVariant(data[id].asQScriptValue()); else if (data[id].dataType() == QMetaType::QObjectStar) return QVariant::fromValue(data[id].asQObject()); else return data[id].asQVariant(); } void QDeclarativeVMEMetaObject::writeVarProperty(int id, const QScriptValue &value) { data[id].setValue(value); activate(object, methodOffset + id, 0); } void QDeclarativeVMEMetaObject::writeVarProperty(int id, const QVariant &value) { bool needActivate = false; if (value.userType() == QMetaType::QObjectStar) { QObject *o = qvariant_cast(value); needActivate = (data[id].dataType() != QMetaType::QObjectStar || data[id].asQObject() != o); data[id].setValue(qvariant_cast(value)); } else { needActivate = (data[id].dataType() != qMetaTypeId() || data[id].asQVariant().userType() != value.userType() || data[id].asQVariant() != value); data[id].setValue(value); } if (needActivate) activate(object, methodOffset + id, 0); } void QDeclarativeVMEMetaObject::listChanged(int id) { activate(object, methodOffset + id, 0); } void QDeclarativeVMEMetaObject::list_append(QDeclarativeListProperty *prop, QObject *o) { List *list = static_cast(prop->data); list->append(o); QMetaObject::activate(prop->object, list->notifyIndex, 0); } int QDeclarativeVMEMetaObject::list_count(QDeclarativeListProperty *prop) { return static_cast(prop->data)->count(); } QObject *QDeclarativeVMEMetaObject::list_at(QDeclarativeListProperty *prop, int index) { return static_cast(prop->data)->at(index); } void QDeclarativeVMEMetaObject::list_clear(QDeclarativeListProperty *prop) { List *list = static_cast(prop->data); list->clear(); QMetaObject::activate(prop->object, list->notifyIndex, 0); } void QDeclarativeVMEMetaObject::registerInterceptor(int index, int valueIndex, QDeclarativePropertyValueInterceptor *interceptor) { if (aInterceptors.isEmpty()) aInterceptors.resize(propertyCount() + metaData->propertyCount); aInterceptors.setBit(index); interceptors.insert(index, qMakePair(valueIndex, interceptor)); } int QDeclarativeVMEMetaObject::vmeMethodLineNumber(int index) { if (index < methodOffset) { Q_ASSERT(parent); return static_cast(parent)->vmeMethodLineNumber(index); } int plainSignals = metaData->signalCount + metaData->propertyCount + metaData->aliasCount; Q_ASSERT(index >= (methodOffset + plainSignals) && index < (methodOffset + plainSignals + metaData->methodCount)); int rawIndex = index - methodOffset - plainSignals; QDeclarativeVMEMetaData::MethodData *data = metaData->methodData() + rawIndex; return data->lineNumber; } QScriptValue QDeclarativeVMEMetaObject::vmeMethod(int index) { if (index < methodOffset) { Q_ASSERT(parent); return static_cast(parent)->vmeMethod(index); } int plainSignals = metaData->signalCount + metaData->propertyCount + metaData->aliasCount; Q_ASSERT(index >= (methodOffset + plainSignals) && index < (methodOffset + plainSignals + metaData->methodCount)); return method(index - methodOffset - plainSignals); } void QDeclarativeVMEMetaObject::setVmeMethod(int index, const QScriptValue &value) { if (index < methodOffset) { Q_ASSERT(parent); return static_cast(parent)->setVmeMethod(index, value); } int plainSignals = metaData->signalCount + metaData->propertyCount + metaData->aliasCount; Q_ASSERT(index >= (methodOffset + plainSignals) && index < (methodOffset + plainSignals + metaData->methodCount)); if (!methods) methods = new QScriptValue[metaData->methodCount]; methods[index - methodOffset - plainSignals] = value; } QScriptValue QDeclarativeVMEMetaObject::vmeProperty(int index) { if (index < propOffset) { Q_ASSERT(parent); return static_cast(parent)->vmeProperty(index); } return readVarProperty(index - propOffset); } void QDeclarativeVMEMetaObject::setVMEProperty(int index, const QScriptValue &v) { if (index < propOffset) { Q_ASSERT(parent); static_cast(parent)->setVMEProperty(index, v); } return writeVarProperty(index - propOffset, v); } QT_END_NAMESPACE