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/****************************************************************************
**
** 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/qdeclarativepropertycache_p.h"
#include "private/qdeclarativeengine_p.h"
#include "private/qdeclarativebinding_p.h"
#include <QtCore/qdebug.h>
Q_DECLARE_METATYPE(QScriptValue);
QT_BEGIN_NAMESPACE
QDeclarativePropertyCache::Data::Flags QDeclarativePropertyCache::Data::flagsForProperty(const QMetaProperty &p, QDeclarativeEngine *engine)
{
int propType = p.userType();
Flags flags;
if (p.isConstant())
flags |= Data::IsConstant;
if (p.isWritable())
flags |= Data::IsWritable;
if (p.isResettable())
flags |= Data::IsResettable;
if (propType == qMetaTypeId<QDeclarativeBinding *>()) {
flags |= Data::IsQmlBinding;
} else if (propType == qMetaTypeId<QScriptValue>()) {
flags |= Data::IsQScriptValue;
} else if (p.isEnumType()) {
flags |= Data::IsEnumType;
} else {
QDeclarativeMetaType::TypeCategory cat = engine ? QDeclarativeEnginePrivate::get(engine)->typeCategory(propType)
: QDeclarativeMetaType::typeCategory(propType);
if (cat == QDeclarativeMetaType::Object)
flags |= Data::IsQObjectDerived;
else if (cat == QDeclarativeMetaType::List)
flags |= Data::IsQList;
}
return flags;
}
void QDeclarativePropertyCache::Data::load(const QMetaProperty &p, QDeclarativeEngine *engine)
{
propType = p.userType();
if (QVariant::Type(propType) == QVariant::LastType)
propType = qMetaTypeId<QVariant>();
coreIndex = p.propertyIndex();
notifyIndex = p.notifySignalIndex();
flags = flagsForProperty(p, engine);
}
void QDeclarativePropertyCache::Data::load(const QMetaMethod &m)
{
coreIndex = m.methodIndex();
flags |= Data::IsFunction;
propType = QVariant::Invalid;
const char *returnType = m.typeName();
if (returnType)
propType = QMetaType::type(returnType);
QList<QByteArray> params = m.parameterTypes();
if (!params.isEmpty())
flags |= Data::HasArguments;
}
QDeclarativePropertyCache::QDeclarativePropertyCache(QDeclarativeEngine *e)
: QDeclarativeCleanup(e), engine(e)
{
}
QDeclarativePropertyCache::~QDeclarativePropertyCache()
{
clear();
}
void QDeclarativePropertyCache::clear()
{
for (int ii = 0; ii < indexCache.count(); ++ii)
indexCache.at(ii)->release();
for (StringCache::ConstIterator iter = stringCache.begin();
iter != stringCache.end(); ++iter)
(*iter)->release();
for (IdentifierCache::ConstIterator iter = identifierCache.begin();
iter != identifierCache.end(); ++iter)
(*iter)->release();
indexCache.clear();
stringCache.clear();
identifierCache.clear();
}
QDeclarativePropertyCache::Data QDeclarativePropertyCache::create(const QMetaObject *metaObject,
const QString &property)
{
Q_ASSERT(metaObject);
QDeclarativePropertyCache::Data rv;
int idx = metaObject->indexOfProperty(property.toUtf8());
if (idx != -1) {
rv.load(metaObject->property(idx));
return rv;
}
int methodCount = metaObject->methodCount();
for (int ii = methodCount - 1; ii >= 0; --ii) {
QMetaMethod m = metaObject->method(ii);
if (m.access() == QMetaMethod::Private)
continue;
QString methodName = QString::fromUtf8(m.signature());
int parenIdx = methodName.indexOf(QLatin1Char('('));
Q_ASSERT(parenIdx != -1);
QStringRef methodNameRef = methodName.leftRef(parenIdx);
if (methodNameRef == property) {
rv.load(m);
return rv;
}
}
return rv;
}
QDeclarativePropertyCache *QDeclarativePropertyCache::copy() const
{
QDeclarativePropertyCache *cache = new QDeclarativePropertyCache(engine);
cache->indexCache = indexCache;
cache->stringCache = stringCache;
cache->identifierCache = identifierCache;
for (int ii = 0; ii < indexCache.count(); ++ii)
indexCache.at(ii)->addref();
for (StringCache::ConstIterator iter = stringCache.begin(); iter != stringCache.end(); ++iter)
(*iter)->addref();
for (IdentifierCache::ConstIterator iter = identifierCache.begin(); iter != identifierCache.end(); ++iter)
(*iter)->addref();
return cache;
}
void QDeclarativePropertyCache::append(QDeclarativeEngine *engine, const QMetaObject *metaObject,
Data::Flag propertyFlags, Data::Flag methodFlags)
{
QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(engine);
int propCount = metaObject->propertyCount();
int propOffset = metaObject->propertyOffset();
indexCache.resize(propCount);
for (int ii = propOffset; ii < propCount; ++ii) {
QMetaProperty p = metaObject->property(ii);
QString propName = QString::fromUtf8(p.name());
RData *data = new RData;
data->identifier = enginePriv->objectClass->createPersistentIdentifier(propName);
data->load(p, engine);
data->flags |= propertyFlags;
indexCache[ii] = data;
if (stringCache.contains(propName)) {
stringCache[propName]->release();
identifierCache[data->identifier.identifier]->release();
}
stringCache.insert(propName, data);
identifierCache.insert(data->identifier.identifier, data);
data->addref();
data->addref();
}
int methodCount = metaObject->methodCount();
int methodOffset = metaObject->methodOffset();
for (int ii = methodOffset; ii < methodCount; ++ii) {
QMetaMethod m = metaObject->method(ii);
if (m.access() == QMetaMethod::Private)
continue;
QString methodName = QString::fromUtf8(m.signature());
int parenIdx = methodName.indexOf(QLatin1Char('('));
Q_ASSERT(parenIdx != -1);
methodName = methodName.left(parenIdx);
RData *data = new RData;
data->identifier = enginePriv->objectClass->createPersistentIdentifier(methodName);
if (stringCache.contains(methodName)) {
stringCache[methodName]->release();
identifierCache[data->identifier.identifier]->release();
}
data->load(m);
if (m.methodType() == QMetaMethod::Slot || m.methodType() == QMetaMethod::Method)
data->flags |= methodFlags;
stringCache.insert(methodName, data);
identifierCache.insert(data->identifier.identifier, data);
data->addref();
}
}
// ### Optimize - check engine for the parent meta object etc.
QDeclarativePropertyCache *QDeclarativePropertyCache::create(QDeclarativeEngine *engine, const QMetaObject *metaObject)
{
Q_ASSERT(engine);
Q_ASSERT(metaObject);
QDeclarativePropertyCache *cache = new QDeclarativePropertyCache(engine);
cache->update(engine, metaObject);
return cache;
}
void QDeclarativePropertyCache::update(QDeclarativeEngine *engine, const QMetaObject *metaObject)
{
Q_ASSERT(engine);
Q_ASSERT(metaObject);
QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(engine);
clear();
// ### The properties/methods should probably be spliced on a per-metaobject basis
int propCount = metaObject->propertyCount();
indexCache.resize(propCount);
for (int ii = propCount - 1; ii >= 0; --ii) {
QMetaProperty p = metaObject->property(ii);
QString propName = QString::fromUtf8(p.name());
RData *data = new RData;
data->identifier = enginePriv->objectClass->createPersistentIdentifier(propName);
data->load(p, engine);
indexCache[ii] = data;
if (stringCache.contains(propName))
continue;
stringCache.insert(propName, data);
identifierCache.insert(data->identifier.identifier, data);
data->addref();
data->addref();
}
int methodCount = metaObject->methodCount();
for (int ii = methodCount - 1; ii >= 0; --ii) {
QMetaMethod m = metaObject->method(ii);
if (m.access() == QMetaMethod::Private)
continue;
QString methodName = QString::fromUtf8(m.signature());
int parenIdx = methodName.indexOf(QLatin1Char('('));
Q_ASSERT(parenIdx != -1);
methodName = methodName.left(parenIdx);
if (stringCache.contains(methodName))
continue;
RData *data = new RData;
data->identifier = enginePriv->objectClass->createPersistentIdentifier(methodName);
data->load(m);
stringCache.insert(methodName, data);
identifierCache.insert(data->identifier.identifier, data);
data->addref();
}
}
QDeclarativePropertyCache::Data *
QDeclarativePropertyCache::property(int index) const
{
if (index < 0 || index >= indexCache.count())
return 0;
return indexCache.at(index);
}
QDeclarativePropertyCache::Data *
QDeclarativePropertyCache::property(const QString &str) const
{
return stringCache.value(str);
}
QString QDeclarativePropertyCache::Data::name(QObject *object)
{
if (!object)
return QString();
return name(object->metaObject());
}
QString QDeclarativePropertyCache::Data::name(const QMetaObject *metaObject)
{
if (!metaObject || coreIndex == -1)
return QString();
if (flags & IsFunction) {
QMetaMethod m = metaObject->method(coreIndex);
QString name = QString::fromUtf8(m.signature());
int parenIdx = name.indexOf(QLatin1Char('('));
if (parenIdx != -1)
name = name.left(parenIdx);
return name;
} else {
QMetaProperty p = metaObject->property(coreIndex);
return QString::fromUtf8(p.name());
}
}
QStringList QDeclarativePropertyCache::propertyNames() const
{
return stringCache.keys();
}
QDeclarativePropertyCache::Data *QDeclarativePropertyCache::property(QDeclarativeEngine *engine, QObject *obj,
const QScriptDeclarativeClass::Identifier &name, Data &local)
{
QDeclarativePropertyCache::Data *rv = 0;
QDeclarativeEnginePrivate *enginePrivate = QDeclarativeEnginePrivate::get(engine);
QDeclarativePropertyCache *cache = 0;
QDeclarativeData *ddata = QDeclarativeData::get(obj);
if (ddata && ddata->propertyCache && ddata->propertyCache->qmlEngine() == engine)
cache = ddata->propertyCache;
if (!cache) {
cache = enginePrivate->cache(obj);
if (cache && ddata && !ddata->propertyCache) { cache->addref(); ddata->propertyCache = cache; }
}
if (cache) {
rv = cache->property(name);
} else {
local = QDeclarativePropertyCache::create(obj->metaObject(), enginePrivate->objectClass->toString(name));
if (local.isValid())
rv = &local;
}
return rv;
}
QDeclarativePropertyCache::Data *QDeclarativePropertyCache::property(QDeclarativeEngine *engine, QObject *obj,
const QString &name, Data &local)
{
QDeclarativePropertyCache::Data *rv = 0;
if (!engine) {
local = QDeclarativePropertyCache::create(obj->metaObject(), name);
if (local.isValid())
rv = &local;
} else {
QDeclarativeEnginePrivate *enginePrivate = QDeclarativeEnginePrivate::get(engine);
QDeclarativePropertyCache *cache = 0;
QDeclarativeData *ddata = QDeclarativeData::get(obj);
if (ddata && ddata->propertyCache && ddata->propertyCache->qmlEngine() == engine)
cache = ddata->propertyCache;
if (!cache) {
cache = enginePrivate->cache(obj);
if (cache && ddata && !ddata->propertyCache) { cache->addref(); ddata->propertyCache = cache; }
}
if (cache) {
rv = cache->property(name);
} else {
local = QDeclarativePropertyCache::create(obj->metaObject(), name);
if (local.isValid())
rv = &local;
}
}
return rv;
}
QT_END_NAMESPACE
|