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/****************************************************************************
**
** 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 Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 "qcontactactionmanager_p.h"

#include "qcontactaction.h"
#include "qcontactactiondescriptor.h"
#include "qcontactactionfactory.h"

#include "qcontactmanager_p.h"

#include <QMutexLocker>
#include <QDebug>

QTM_BEGIN_NAMESPACE

Q_GLOBAL_STATIC(QContactActionManager, contactActionManagerInstance)

/*!
  \internal
  \class QContactActionManager
  This class uses a plugin to delegate discovery of actions (to avoid a dependency on SFW for QtContacts)
  It is an implementation detail of QContactAction.
  \since 1.2
 */

QContactActionManager* QContactActionManager::instance()
{
    return contactActionManagerInstance();
}

QContactActionManager::QContactActionManager()
    : QObject(),
    m_plugin(0)
{
}

void QContactActionManager::init()
{
    // We ask the qcontactmanager engine loading code, since it has to enumerate things anyway
    QContactManagerData::loadFactories();
    m_plugin = QContactManagerData::m_actionManagers.value(0);
}

QContactActionManager::~QContactActionManager()
{
    // Allow our subordinates to do their thing when they want,
    // since we just cache stuff
}

QList<QContactActionDescriptor> QContactActionManager::availableActions(const QContact &contact)
{
    QMutexLocker locker(&m_instanceMutex);
    init();

    QList<QContactActionDescriptor> ret;
    if (m_plugin) {
        QHash<QContactActionDescriptor, QContactActionFactory*> hash = m_plugin->actionFactoryHash();
        QHash<QContactActionDescriptor, QContactActionFactory*>::const_iterator it;
        for (it = hash.constBegin(); it != hash.constEnd(); ++it) {
            QContactActionFactory* curr = it.value();
            if (curr && curr->supportsContact(contact, it.key())) {
                ret.append(it.key());
            }
        }
    }

    return ret;
}

QList<QContactActionDescriptor> QContactActionManager::actionDescriptors(const QString& actionName)
{
    QMutexLocker locker(&m_instanceMutex);
    init();

    if (m_plugin) {
        if (actionName.isEmpty())
            return m_plugin->descriptorHash().values();
        return m_plugin->descriptorHash().values(actionName);
    }
    return QList<QContactActionDescriptor>();
}

/*! The caller takes ownership of the returned action pointer, and must delete it to avoid leaking memory. */
QContactAction* QContactActionManager::action(const QContactActionDescriptor& descriptor)
{
    QMutexLocker locker(&m_instanceMutex);
    init();

    if (m_plugin) {
        QContactActionFactory *factory = m_plugin->actionFactoryHash().value(descriptor);
        if (factory)
            return factory->create(descriptor);
    }
    return 0;
}

#include "moc_qcontactactionmanager_p.cpp"

QTM_END_NAMESPACE