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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** 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.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#include "multifeedrssmodel.h"
#include <QtCore/QTimer>
#include <QtCore/QThread>
#include <QtCore/QXmlStreamReader>
#include <QtCore/QCoreApplication>
#include <QtNetwork/QNetworkRequest>
#include <QtNetwork/QNetworkReply>
#include <utils/networkaccessmanager.h>
#include <QDebug>
namespace Welcome {
namespace Internal {
QString shortenHtml(QString html)
{
html.replace(QLatin1String("<a"), QLatin1String("<i"));
html.replace(QLatin1String("</a"), QLatin1String("</i"));
uint firstParaEndXhtml = (uint) html.indexOf(QLatin1String("</p>"));
uint firstParaEndHtml = (uint) html.indexOf(QLatin1String("<p>"), html.indexOf(QLatin1String("<p>"))+1);
uint firstParaEndBr = (uint) html.indexOf(QLatin1String("<br"));
uint firstParaEnd = qMin(firstParaEndXhtml, firstParaEndHtml);
firstParaEnd = qMin(firstParaEnd, firstParaEndBr);
return html.left(firstParaEnd);
}
class RssReader {
public:
Internal::RssItem parseItem() {
RssItem item;
item.source = requestUrl;
item.blogIcon = blogIcon;
item.blogName = blogName;
while (!streamReader.atEnd()) {
switch (streamReader.readNext()) {
case QXmlStreamReader::StartElement:
if (streamReader.name() == QLatin1String("title"))
item.title = streamReader.readElementText();
else if (streamReader.name() == QLatin1String("link"))
item.link = streamReader.readElementText();
else if (streamReader.name() == QLatin1String("pubDate")) {
QString dateStr = streamReader.readElementText();
// fixme: honor time zone!
dateStr = dateStr.left(dateStr.indexOf('+')-1);
item.pubDate = QDateTime::fromString(dateStr, "ddd, dd MMM yyyy HH:mm:ss");
}
else if (streamReader.name() == QLatin1String("description"))
item.description = shortenHtml(streamReader.readElementText());
break;
case QXmlStreamReader::EndElement:
if (streamReader.name() == QLatin1String("item"))
return item;
break;
default:
break;
}
}
return RssItem();
}
Internal::RssItemList parse(QNetworkReply *reply) {
QUrl source = reply->request().url();
requestUrl = source.toString();
streamReader.setDevice(reply);
Internal::RssItemList list;
while (!streamReader.atEnd()) {
switch (streamReader.readNext()) {
case QXmlStreamReader::StartElement:
if (streamReader.name() == QLatin1String("item"))
list.append(parseItem());
else if (streamReader.name() == QLatin1String("title"))
blogName = streamReader.readElementText();
else if (streamReader.name() == QLatin1String("link")) {
if (!streamReader.namespaceUri().isEmpty())
break;
QString favIconString(streamReader.readElementText());
QUrl favIconUrl(favIconString);
favIconUrl.setPath(QLatin1String("favicon.ico"));
blogIcon = favIconUrl.toString();
}
break;
default:
break;
}
}
return list;
}
private:
QXmlStreamReader streamReader;
QString requestUrl;
QString blogIcon;
QString blogName;
};
} // namespace Internal
MultiFeedRssModel::MultiFeedRssModel(QObject *parent) :
QAbstractListModel(parent),
m_networkAccessManager(new Utils::NetworkAccessManager),
m_articleCount(0)
{
//m_namThread = new QThread;
//m_networkAccessManager->moveToThread(m_namThread);
connect(m_networkAccessManager, SIGNAL(finished(QNetworkReply*)),
SLOT(appendFeedData(QNetworkReply*)), Qt::QueuedConnection);
//m_namThread->start();
//qDebug() << "MainThread" << QThread::currentThread();
QHash<int, QByteArray> roleNames;
roleNames[TitleRole] = "title";
roleNames[DescriptionRole] = "description";
roleNames[PubDateRole] = "pubDate";
roleNames[LinkRole] = "link";
roleNames[BlogNameRole] = "blogName";
roleNames[BlogIconRole] = "blogIcon";
setRoleNames(roleNames);
}
MultiFeedRssModel::~MultiFeedRssModel()
{
//m_namThread->exit();
//delete m_namThread;
}
void MultiFeedRssModel::addFeed(const QString& feed)
{
QMetaObject::invokeMethod(m_networkAccessManager, "getUrl",
Qt::QueuedConnection, Q_ARG(QUrl, feed));
}
bool sortForPubDate(const Internal::RssItem& item1, const Internal::RssItem& item2)
{
return item1.pubDate > item2.pubDate;
}
void MultiFeedRssModel::appendFeedData(QNetworkReply *reply)
{
Internal::RssReader reader;
m_aggregatedFeed.append(reader.parse(reply));
qSort(m_aggregatedFeed.begin(), m_aggregatedFeed.end(), sortForPubDate);
setArticleCount(m_aggregatedFeed.size());
reset();
}
void MultiFeedRssModel::removeFeed(const QString &feed)
{
QMutableListIterator<Internal::RssItem> it(m_aggregatedFeed);
while (it.hasNext()) {
Internal::RssItem item = it.next();
if (item.source == feed)
it.remove();
}
setArticleCount(m_aggregatedFeed.size());
}
int MultiFeedRssModel::rowCount(const QModelIndex &) const
{
return m_aggregatedFeed.size();
}
QVariant MultiFeedRssModel::data(const QModelIndex &index, int role) const
{
Internal::RssItem item = m_aggregatedFeed.at(index.row());
switch (role) {
case Qt::DisplayRole: // fall through
case TitleRole:
return item.title;
case DescriptionRole:
return item.description;
case PubDateRole:
return item.pubDate;
case LinkRole:
return item.link;
case BlogNameRole:
return item.blogName;
case BlogIconRole:
return item.blogIcon;
}
return QVariant();
}
} // namespace Utils
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