qgeoroutereply_nokia.cpp

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// Copyright (C) 2015 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qgeoroutereply_nokia.h"
#include "qgeoroutexmlparser.h"
#include "qgeoerror_messages.h"
 
#include <qgeorouterequest.h>
 
#include <QtCore/QCoreApplication>
 
Q_DECLARE_METATYPE(QList<QGeoRoute>)
 
QT_BEGIN_NAMESPACE
 
QGeoRouteReplyNokia::QGeoRouteReplyNokia(const QGeoRouteRequest &request,
                                         const QList<QNetworkReply *> &replies,
                                         QObject *parent)
:   QGeoRouteReply(request, parent), m_parsers(0)
{
    qRegisterMetaType<QList<QGeoRoute> >();
 
    bool failure = false;
    for (QNetworkReply *reply : replies) {
        if (!reply) {
            failure = true;
            continue;
        }
        connect(reply, &QNetworkReply::finished,
                this, &QGeoRouteReplyNokia::networkFinished);
        connect(reply, &QNetworkReply::errorOccurred,
                this, &QGeoRouteReplyNokia::networkError);
        connect(this, &QGeoRouteReply::aborted, reply, &QNetworkReply::abort);
        connect(this, &QObject::destroyed, reply, &QObject::deleteLater);
    }
    if (failure)
        setError(UnknownError, QStringLiteral("Null reply"));
    else
        connect(this, &QGeoRouteReply::aborted, [this](){ m_parsers = 0; });
}
 
QGeoRouteReplyNokia::~QGeoRouteReplyNokia()
{
}
 
void QGeoRouteReplyNokia::networkFinished()
{
    QNetworkReply *reply = qobject_cast<QNetworkReply *>(sender());
    reply->deleteLater();
 
    if (reply->error() != QNetworkReply::NoError
        && reply->error() != QNetworkReply::UnknownContentError) {
        return;
    }
 
    QGeoRouteXmlParser *parser = new QGeoRouteXmlParser(request());
    connect(parser, &QGeoRouteXmlParser::results,
            this, &QGeoRouteReplyNokia::appendResults);
    connect(parser, &QGeoRouteXmlParser::errorOccurred,
            this, &QGeoRouteReplyNokia::parserError);
 
    ++m_parsers;
    parser->parse(reply->readAll());
}
 
void QGeoRouteReplyNokia::networkError(QNetworkReply::NetworkError error)
{
    if (error == QNetworkReply::UnknownContentError)
        return;
    QNetworkReply *reply = static_cast<QNetworkReply *>(sender());
    reply->deleteLater();
    setError(QGeoRouteReply::CommunicationError, reply->errorString());
    if (error != QNetworkReply::OperationCanceledError) // Any error not caused by abort()
        emit aborted(); // aborts all unfinished replies and sets m_parsers to 0
}
 
void QGeoRouteReplyNokia::appendResults(const QList<QGeoRoute> &routes)
{
    if (!m_parsers)
        return;
 
    --m_parsers;
    addRoutes(routes);
 
    if (!m_parsers)
        setFinished(true);
}
 
void QGeoRouteReplyNokia::parserError(const QString &errorString)
{
    Q_UNUSED(errorString);
    emit aborted();
    setError(QGeoRouteReply::ParseError,
             QCoreApplication::translate(NOKIA_PLUGIN_CONTEXT_NAME, RESPONSE_NOT_RECOGNIZABLE));
}
 
QT_END_NAMESPACE