src/declarative/qml/qdeclarativelistscriptclass.cpp
changeset 30 5dc02b23752f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/qml/qdeclarativelistscriptclass.cpp	Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,149 @@
+/****************************************************************************
+**
+** 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/qdeclarativelistscriptclass_p.h"
+
+#include "private/qdeclarativeengine_p.h"
+#include "private/qdeclarativeguard_p.h"
+#include "private/qdeclarativelist_p.h"
+
+QT_BEGIN_NAMESPACE
+
+struct ListData : public QScriptDeclarativeClass::Object {
+    QDeclarativeGuard<QObject> object;
+    QDeclarativeListProperty<QObject> property;
+    int propertyType;
+};
+
+QDeclarativeListScriptClass::QDeclarativeListScriptClass(QDeclarativeEngine *e)
+: QScriptDeclarativeClass(QDeclarativeEnginePrivate::getScriptEngine(e)), engine(e)
+{
+    QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
+    Q_UNUSED(scriptEngine);
+
+    m_lengthId = createPersistentIdentifier(QLatin1String("length"));
+}
+
+QDeclarativeListScriptClass::~QDeclarativeListScriptClass()
+{
+}
+
+QScriptValue QDeclarativeListScriptClass::newList(QObject *object, int propId, int propType)
+{
+    QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
+
+    if (!object || propId == -1)
+        return scriptEngine->nullValue();
+
+    ListData *data = new ListData;
+    data->object = object;
+    data->propertyType = propType;
+    void *args[] = { &data->property, 0 };
+    QMetaObject::metacall(object, QMetaObject::ReadProperty, propId, args);
+
+    return newObject(scriptEngine, this, data);
+}
+
+QScriptValue QDeclarativeListScriptClass::newList(const QDeclarativeListProperty<QObject> &prop, int propType)
+{
+    QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
+
+    ListData *data = new ListData;
+    data->object = prop.object;
+    data->property = prop;
+    data->propertyType = propType;
+
+    return newObject(scriptEngine, this, data);
+}
+
+QScriptClass::QueryFlags 
+QDeclarativeListScriptClass::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;
+    }
+}
+
+QDeclarativeListScriptClass::Value QDeclarativeListScriptClass::property(Object *obj, const Identifier &name)
+{
+    QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
+    QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(engine);
+
+    ListData *data = (ListData *)obj;
+    if (!data->object) 
+        return Value();
+
+    quint32 count = data->property.count?data->property.count(&data->property):0;
+
+    if (name == m_lengthId.identifier)
+        return Value(scriptEngine, count);
+    else if (lastIndex < count && data->property.at)
+        return Value(scriptEngine, enginePriv->objectClass->newQObject(data->property.at(&data->property, lastIndex)));
+    else
+        return Value();
+}
+
+QVariant QDeclarativeListScriptClass::toVariant(Object *obj, bool *ok)
+{
+    ListData *data = (ListData *)obj;
+
+    if (!data->object) {
+        if (ok) *ok = false;
+        return QVariant();
+    }
+
+    return QVariant::fromValue(QDeclarativeListReferencePrivate::init(data->property, data->propertyType, engine));
+}
+
+QT_END_NAMESPACE
+