--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/qml/qdeclarativepropertycache.cpp Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,428 @@
+/****************************************************************************
+**
+** 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;
+}
+
+
+/*!
+Creates a new empty QDeclarativePropertyCache.
+*/
+QDeclarativePropertyCache::QDeclarativePropertyCache(QDeclarativeEngine *e)
+: QDeclarativeCleanup(e), engine(e)
+{
+ Q_ASSERT(engine);
+}
+
+/*!
+Creates a new QDeclarativePropertyCache of \a metaObject.
+*/
+QDeclarativePropertyCache::QDeclarativePropertyCache(QDeclarativeEngine *e, const QMetaObject *metaObject)
+: QDeclarativeCleanup(e), engine(e)
+{
+ Q_ASSERT(engine);
+ Q_ASSERT(metaObject);
+
+ update(engine, metaObject);
+}
+
+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 >= 2; --ii) { // >=2 to block the destroyed signal
+ 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 = qMax(2, metaObject->methodOffset()); // 2 to block the destroyed signal
+ 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();
+ }
+}
+
+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 >= 2; --ii) { // >=2 to block the destroyed signal
+ 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