diff options
Diffstat (limited to 'src/qml/qml/v8/qjsvalueiterator_impl_p.h')
-rw-r--r-- | src/qml/qml/v8/qjsvalueiterator_impl_p.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/qml/qml/v8/qjsvalueiterator_impl_p.h b/src/qml/qml/v8/qjsvalueiterator_impl_p.h new file mode 100644 index 0000000000..2c060b21a7 --- /dev/null +++ b/src/qml/qml/v8/qjsvalueiterator_impl_p.h @@ -0,0 +1,139 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** 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. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QJSVALUEITERATOR_IMPL_P_H +#define QJSVALUEITERATOR_IMPL_P_H + +#include "qjsvalueiterator_p.h" +#include <private/qv8engine_p.h> +#include "qjsconverter_p.h" + +inline QJSValueIteratorPrivate::QJSValueIteratorPrivate(const QJSValuePrivate* value) + : m_object(const_cast<QJSValuePrivate*>(value)) + , m_index(0) + , m_count(0) +{ + Q_ASSERT(value); + QV8Engine *engine = m_object->engine(); + if (!m_object->isObject()) + m_object = 0; + else { + QScriptIsolate api(engine, QScriptIsolate::NotNullEngine); + v8::HandleScope scope; + + v8::Handle<v8::Value> tmp = *value; + v8::Handle<v8::Object> obj = v8::Handle<v8::Object>::Cast(tmp); + v8::Local<v8::Array> names; + + // FIXME we need newer V8! + //names = obj->GetOwnPropertyNames(); + names = engine->getOwnPropertyNames(obj); + m_names = v8::Persistent<v8::Array>::New(names); + m_count = names->Length(); + + engine->registerValueIterator(this); + } +} + +inline QJSValueIteratorPrivate::~QJSValueIteratorPrivate() +{ + if (isValid()) { + engine()->unregisterValueIterator(this); + m_names.Dispose(); + } +} + +inline void QJSValueIteratorPrivate::invalidate() +{ + m_names.Dispose(); + m_object.reset(); + m_index = 0; + m_count = 0; +} + +inline bool QJSValueIteratorPrivate::hasNext() const +{ + return isValid() ? m_index < m_count : false; +} + +inline bool QJSValueIteratorPrivate::next() +{ + if (hasNext()) { + ++m_index; + return true; + } + return false; +} + +inline QString QJSValueIteratorPrivate::name() const +{ + if (!isValid()) + return QString(); + + v8::HandleScope handleScope; + return QJSConverter::toString(m_names->Get(m_index - 1)->ToString()); +} + +inline QScriptPassPointer<QJSValuePrivate> QJSValueIteratorPrivate::value() const +{ + if (!isValid()) + return new QJSValuePrivate(); + + v8::HandleScope handleScope; + return m_object->property(m_names->Get(m_index - 1)->ToString()); +} + +inline bool QJSValueIteratorPrivate::isValid() const +{ + bool result = m_object ? !m_object->isUndefined() : false; + // We know that if this object is still valid then it is an object + // if this assumption is not correct then some other logic in this class + // have to be changed too. + Q_ASSERT(!result || m_object->isObject()); + return result; +} + +inline QV8Engine* QJSValueIteratorPrivate::engine() const +{ + return m_object ? m_object->engine() : 0; +} + +#endif // QJSVALUEITERATOR_IMPL_P_H |