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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
// User includes
#include "qorganizeritemrequestqueue.h"
QOrganizerItemRequestQueue* QOrganizerItemRequestQueue::instance(
QOrganizerItemSymbianEngine& aOrganizerItemManagerEngine)
{
return new QOrganizerItemRequestQueue(aOrganizerItemManagerEngine);
}
QOrganizerItemRequestQueue::~QOrganizerItemRequestQueue()
{
// Cleanup, delete all the pointers from the hash map
QMapIterator<QOrganizerAbstractRequest*,
COrganizerItemRequestsServiceProvider*> iter(m_abstractRequestMap);
// Delete all the asynch requests one by one
while (iter.hasNext()) {
// Advance to next item
iter.next();
// It deletes the asynch request service provider
delete iter.value();
}
// Clear the abstract request map
m_abstractRequestMap.clear();
}
bool QOrganizerItemRequestQueue::startRequest(
QOrganizerAbstractRequest* req)
{
// Find m_abstractRequestMap if an asynchronous service provider for request
// req already exists
COrganizerItemRequestsServiceProvider* requestServiceProvider(
m_abstractRequestMap[req]);
// asynchronous service provider does not exist, create a new one
if (!requestServiceProvider) {
TRAPD(err, requestServiceProvider =
COrganizerItemRequestsServiceProvider::NewL(
m_organizerItemManagerEngine));
if (err) {
// Request service provider not instantiated successfully
return false;
}
m_abstractRequestMap.insert(req, requestServiceProvider);
}
// Start the request
return requestServiceProvider->StartRequest(req);
}
// To cancel aReq request
bool QOrganizerItemRequestQueue::cancelRequest(
QOrganizerAbstractRequest* req)
{
COrganizerItemRequestsServiceProvider* requestServiceProvider(
m_abstractRequestMap[req]);
//Cancel the request
if (requestServiceProvider) {
return requestServiceProvider->CancelRequest();
}
else {
return false;
}
}
// Wait for request to complete
bool QOrganizerItemRequestQueue::waitForRequestFinished(
QOrganizerAbstractRequest* req, int msecs)
{
// Verify that request exists in this manager
if (!m_abstractRequestMap.keys().contains(req))
return false;
// Verify that request is active
if (req->state() != QOrganizerAbstractRequest::ActiveState)
return false;
// Create an event loop
QEventLoop *loop = new QEventLoop(this);
// If request state changes quit the loop
QObject::connect(req, SIGNAL(stateChanged(QOrganizerAbstractRequest::State)), loop, SLOT(quit()));
// Set a timeout for the request
// NOTE: zero means wait forever
if (msecs > 0)
QTimer::singleShot(msecs, loop, SLOT(quit()));
// Start the loop
loop->exec();
loop->disconnect();
loop->deleteLater();
return (req->state() == QOrganizerAbstractRequest::FinishedState);
}
// Request is not more a valid request
void QOrganizerItemRequestQueue::requestDestroyed(
QOrganizerAbstractRequest* req)
{
// Get the pointer to the Asynchronous service provider for req request
COrganizerItemRequestsServiceProvider* requestServiceProvider(
m_abstractRequestMap[req]);
if (requestServiceProvider) {
// Remove req request & asynchronous service provider from the map
// count is used only for the debugging purpose. Count should always be
// 1, there is a serious programming mistake if not so.
int count(m_abstractRequestMap.remove(req));
// Delete the asynchronous service provider
delete requestServiceProvider;
}
}
QOrganizerItemRequestQueue::QOrganizerItemRequestQueue(
QOrganizerItemSymbianEngine& aOrganizerItemManagerEngine) :
m_organizerItemManagerEngine(aOrganizerItemManagerEngine)
{
}
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