/**************************************************************************** ** ** 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 "qdeclarativenetworkaccessmanagerfactory.h" QT_BEGIN_NAMESPACE /*! \class QDeclarativeNetworkAccessManagerFactory \since 4.7 \brief The QDeclarativeNetworkAccessManagerFactory class creates QNetworkAccessManager instances for a QML engine. A QML engine uses QNetworkAccessManager for all network access. By implementing a factory, it is possible to provide the QML engine with custom QNetworkAccessManager instances with specialized caching, proxy and cookies support. To implement a factory, subclass QDeclarativeNetworkAccessManagerFactory and implement the virtual create() method, then assign it to the relevant QML engine using QDeclarativeEngine::setNetworkAccessManagerFactory(). Note the QML engine may create QNetworkAccessManager instances from multiple threads. Because of this, the implementation of the create() method must be \l{Reentrancy and Thread-Safety}{reentrant}. In addition, the developer should be careful if the signals of the object to be returned from create() are connected to the slots of an object that may be created in a different thread: \list \o The QML engine internally handles all requests, and cleans up any QNetworkReply objects it creates. Receiving the QNetworkAccessManager::finished() signal in another thread may not provide the receiver with a valid reply object if it has already been deleted. \o Authentication details provided to QNetworkAccessManager::authenticationRequired() must be provided immediately, so this signal cannot be connected as a Qt::QueuedConnection (or as the default Qt::AutoConnection from another thread). \endlist For more information about signals and threads, see \l {Threads and QObjects} and \l {Signals and Slots Across Threads}. \sa {declarative/cppextensions/networkaccessmanagerfactory}{NetworkAccessManagerFactory example} */ /*! Destroys the factory. The default implementation does nothing. */ QDeclarativeNetworkAccessManagerFactory::~QDeclarativeNetworkAccessManagerFactory() { } /*! \fn QNetworkAccessManager *QDeclarativeNetworkAccessManagerFactory::create(QObject *parent) Creates and returns a network access manager with the specified \a parent. This method must return a new QNetworkAccessManager instance each time it is called. Note: this method may be called by multiple threads, so ensure the implementation of this method is reentrant. */ QT_END_NAMESPACE