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Diffstat (limited to 'src/declarative/qml/qmllistscriptclass.cpp')
-rw-r--r-- | src/declarative/qml/qmllistscriptclass.cpp | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/declarative/qml/qmllistscriptclass.cpp b/src/declarative/qml/qmllistscriptclass.cpp new file mode 100644 index 0000000..09bde8c --- /dev/null +++ b/src/declarative/qml/qmllistscriptclass.cpp @@ -0,0 +1,141 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qmllistscriptclass_p.h" +#include <private/qmlengine_p.h> + +QT_BEGIN_NAMESPACE + +struct ListData : public QScriptDeclarativeClass::Object { + QGuard<QObject> object; + int propertyIdx; + QmlListScriptClass::ListType type; +}; + +QmlListScriptClass::QmlListScriptClass(QmlEngine *e) +: QScriptDeclarativeClass(QmlEnginePrivate::getScriptEngine(e)), engine(e) +{ + QScriptEngine *scriptEngine = QmlEnginePrivate::getScriptEngine(engine); + + m_lengthId = createPersistentIdentifier(QLatin1String("length")); +} + +QmlListScriptClass::~QmlListScriptClass() +{ +} + +QScriptValue QmlListScriptClass::newList(QObject *object, int propId, ListType type) +{ + QScriptEngine *scriptEngine = QmlEnginePrivate::getScriptEngine(engine); + + if (!object || propId == -1) + return scriptEngine->nullValue(); + + ListData *data = new ListData; + data->object = object; + data->propertyIdx = propId; + data->type = type; + + return newObject(scriptEngine, this, data); +} + +QScriptClass::QueryFlags +QmlListScriptClass::queryProperty(Object *object, const Identifier &name, + QScriptClass::QueryFlags flags) +{ + if (name == m_lengthId.identifier) + return QScriptClass::HandlesReadAccess; + + bool ok = false; + quint32 idx = toArrayIndex(name, &ok); + + if (ok) { + lastIndex = idx; + return QScriptClass::HandlesReadAccess; + } else { + return 0; + } +} + +QScriptValue QmlListScriptClass::property(Object *obj, const Identifier &name) +{ + QScriptEngine *scriptEngine = QmlEnginePrivate::getScriptEngine(engine); + QmlEnginePrivate *enginePriv = QmlEnginePrivate::get(engine); + + ListData *data = (ListData *)obj; + if (!data->object) + return scriptEngine->undefinedValue(); + + void *list = 0; + void *args[] = { &list, 0 }; + QMetaObject::metacall(data->object, QMetaObject::ReadProperty, + data->propertyIdx, args); + + if (!list) + return scriptEngine->undefinedValue(); + + if (data->type == QListPtr) { + const QList<QObject *> &qlist = *((QList<QObject *>*)list); + + if (name == m_lengthId.identifier) + return qlist.count(); + else if (lastIndex < qlist.count()) + return enginePriv->objectClass->newQObject(qlist.at(lastIndex)); + else + return scriptEngine->undefinedValue(); + + } else { + Q_ASSERT(data->type == QmlListPtr); + const QmlList<QObject *> &qmllist = *((QmlList<QObject *>*)list); + + int count = qmllist.count(); + + if (name == m_lengthId.identifier) + return count; + else if (lastIndex < count) + return enginePriv->objectClass->newQObject(qmllist.at(lastIndex)); + else + return scriptEngine->undefinedValue(); + } +} + +QT_END_NAMESPACE + |