qplacesearchsuggestionreplyimpl.cpp

/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
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** This file is part of the QtLocation module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL3$
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****************************************************************************/

#include "qplacesearchsuggestionreplyimpl.h"
#include "qgeoerror_messages.h"

#include <QCoreApplication>
#include <QtCore/QJsonDocument>
#include <QtCore/QJsonObject>
#include <QtCore/QJsonArray>

QT_BEGIN_NAMESPACE

QPlaceSearchSuggestionReplyImpl::QPlaceSearchSuggestionReplyImpl(QNetworkReply *reply,
                                                                 QObject *parent)
:   QPlaceSearchSuggestionReply(parent), m_reply(reply)
{
    if (!m_reply)
        return;

    m_reply->setParent(this);
    connect(m_reply, SIGNAL(finished()), this, SLOT(replyFinished()));
}

QPlaceSearchSuggestionReplyImpl::~QPlaceSearchSuggestionReplyImpl()
{
}

void QPlaceSearchSuggestionReplyImpl::abort()
{
    if (m_reply)
        m_reply->abort();
}

void QPlaceSearchSuggestionReplyImpl::setError(QPlaceReply::Error error_,
                                               const QString &errorString)
{
    QPlaceReply::setError(error_, errorString);
    emit error(error_, errorString);
    setFinished(true);
    emit finished();
}

void QPlaceSearchSuggestionReplyImpl::replyFinished()
{
    if (m_reply->error() != QNetworkReply::NoError) {
        switch (m_reply->error()) {
        case QNetworkReply::OperationCanceledError:
            setError(CancelError, "Request canceled.");
            break;
        default:
            setError(CommunicationError, "Network error.");
        }
        return;
    }

    QJsonDocument document = QJsonDocument::fromJson(m_reply->readAll());
    if (!document.isObject()) {
        setError(ParseError, QCoreApplication::translate(NOKIA_PLUGIN_CONTEXT_NAME, PARSE_ERROR));
        emit error(error(), errorString());
        return;
    }

    QJsonObject object = document.object();

    QJsonValue status = object.value(QStringLiteral("status"));
    if(status.toString().toLatin1() != "OK")
    {
        QJsonValue errorMessage = object.value(QStringLiteral("error_message"));
        setError(UnknownError, QString("%1: %2").arg(status.toString()).arg(errorMessage.toString()).toLatin1());
        return;
    }
    QJsonArray suggestions = object.value(QStringLiteral("predictions")).toArray();

    QStringList s;
    for (int i = 0; i < suggestions.count(); ++i) {
        if(suggestions.at(i).isObject()) {
            QJsonObject suggestion = suggestions.at(i).toObject();
            QJsonValue description = suggestion.value("description");
            if (description.isString()) {
                s.append(description.toString());
            }
        }
    }

    setSuggestions(s);

    m_reply->deleteLater();
    m_reply = 0;

    setFinished(true);
    emit finished();
}

QT_END_NAMESPACE