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#ifndef QTHELPNETWORK_H
#define QTHELPNETWORK_H
#include <QNetworkReply>
#include <QTimer>
#include <QHelpEngine>
#include <kmimetype.h>
class HelpNetworkReply : public QNetworkReply
{
public:
HelpNetworkReply(const QNetworkRequest &request, const QByteArray &fileData, const QString &mimeType);
virtual void abort() {}
virtual qint64 bytesAvailable() const { return data.length() + QNetworkReply::bytesAvailable(); }
protected:
virtual qint64 readData(char *data, qint64 maxlen);
private:
QByteArray data;
qint64 origLen;
};
HelpNetworkReply::HelpNetworkReply(const QNetworkRequest &request,
const QByteArray &fileData, const QString &mimeType)
: data(fileData), origLen(fileData.length())
{
setRequest(request);
setOpenMode(QIODevice::ReadOnly);
setHeader(QNetworkRequest::ContentTypeHeader, mimeType);
setHeader(QNetworkRequest::ContentLengthHeader, QByteArray::number(origLen));
QTimer::singleShot(0, this, SIGNAL(metaDataChanged()));
QTimer::singleShot(0, this, SIGNAL(readyRead()));
}
qint64 HelpNetworkReply::readData(char *buffer, qint64 maxlen)
{
qint64 len = qMin(qint64(data.length()), maxlen);
if (len) {
qMemCopy(buffer, data.constData(), len);
data.remove(0, len);
}
if (!data.length())
QTimer::singleShot(0, this, SIGNAL(finished()));
return len;
}
class HelpNetworkAccessManager : public QNetworkAccessManager
{
public:
HelpNetworkAccessManager(QHelpEngineCore *engine, QObject *parent)
: QNetworkAccessManager(parent), m_helpEngine(engine) {}
protected:
virtual QNetworkReply *createRequest(Operation op,
const QNetworkRequest &request, QIODevice *outgoingData = 0);
private:
QHelpEngineCore *m_helpEngine;
};
QNetworkReply *HelpNetworkAccessManager::createRequest(Operation op, const QNetworkRequest &request, QIODevice *outgoingData)
{
QString scheme = request.url().scheme();
if (scheme == QLatin1String("qthelp") || scheme == QLatin1String("about")) {
return new HelpNetworkReply(request, m_helpEngine->fileData(request.url()), KMimeType::findByUrl(request.url())->name());
}
return QNetworkAccessManager::createRequest(op, request, outgoingData);
}
#endif
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