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Diffstat (limited to 'src/declarative/qml/qmllistscriptclass.cpp')
| -rw-r--r-- | src/declarative/qml/qmllistscriptclass.cpp | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/src/declarative/qml/qmllistscriptclass.cpp b/src/declarative/qml/qmllistscriptclass.cpp new file mode 100644 index 0000000..d4cdc6e --- /dev/null +++ b/src/declarative/qml/qmllistscriptclass.cpp @@ -0,0 +1,173 @@ +/**************************************************************************** +** +** Copyright (C) 2009 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 "qmllistscriptclass_p.h" + +#include "qmlengine_p.h" +#include "qmlguard_p.h" + +QT_BEGIN_NAMESPACE + +struct ListData : public QScriptDeclarativeClass::Object { + QmlGuard<QObject> object; + int propertyIdx; + QmlListScriptClass::ListCategory type; + int propertyType; +}; + +QmlListScriptClass::QmlListScriptClass(QmlEngine *e) +: QmlScriptClass(QmlEnginePrivate::getScriptEngine(e)), engine(e) +{ + QScriptEngine *scriptEngine = QmlEnginePrivate::getScriptEngine(engine); + Q_UNUSED(scriptEngine); + + m_lengthId = createPersistentIdentifier(QLatin1String("length")); +} + +QmlListScriptClass::~QmlListScriptClass() +{ +} + +QScriptValue QmlListScriptClass::newList(QObject *object, int propId, ListCategory type, int propType) +{ + 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; + data->propertyType = propType; + + return newObject(scriptEngine, this, data); +} + +QScriptClass::QueryFlags +QmlListScriptClass::queryProperty(Object *object, const Identifier &name, + QScriptClass::QueryFlags flags) +{ + Q_UNUSED(object); + Q_UNUSED(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; + } +} + +QmlListScriptClass::ScriptValue 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 Value(); + + void *list = 0; + void *args[] = { &list, 0 }; + QMetaObject::metacall(data->object, QMetaObject::ReadProperty, + data->propertyIdx, args); + + if (!list) + return Value(); + + if (data->type == QListPtr) { + const QList<QObject *> &qlist = *((QList<QObject *>*)list); + + quint32 count = qlist.count(); + + if (name == m_lengthId.identifier) + return Value(scriptEngine, count); + else if (lastIndex < count) + return Value(scriptEngine, enginePriv->objectClass->newQObject(qlist.at(lastIndex))); + else + return Value(); + + } else { + Q_ASSERT(data->type == QmlListPtr); + const QmlList<QObject *> &qmllist = *((QmlList<QObject *>*)list); + + quint32 count = qmllist.count(); + + if (name == m_lengthId.identifier) + return Value(scriptEngine, count); + else if (lastIndex < count) + return Value(scriptEngine, enginePriv->objectClass->newQObject(qmllist.at(lastIndex))); + else + return Value(); + } +} + +QVariant QmlListScriptClass::toVariant(Object *obj, bool *ok) +{ + ListData *data = (ListData *)obj; + + if (!data->object) { + if (ok) *ok = false; + return QVariant(); + } + + void *list = 0; + void *args[] = { &list, 0 }; + QMetaObject::metacall(data->object, QMetaObject::ReadProperty, + data->propertyIdx, args); + + if (!list) { + if (ok) *ok = false; + return QVariant(); + } + + if (ok) *ok = true; + return QVariant(data->propertyType, &list); +} + +QT_END_NAMESPACE + |