81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
/*
|
|
SPDX-FileCopyrightText: 2011 Aaron Seigo <aseigo@kde.org>
|
|
|
|
SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include "httpContainer.h"
|
|
|
|
#include <kio/job.h>
|
|
|
|
HttpContainer::HttpContainer(const QUrl &url, QObject *parent)
|
|
: Plasma::DataContainer(parent),
|
|
m_url(url)
|
|
{
|
|
// Since we are grabbing data over the network, we request a
|
|
// backing store. This way, if the network is down or on first start
|
|
// before we get our first reply back, if this source was previously
|
|
// available, we'll still have our data. This is a very nice "freebie"
|
|
// DataContainer gives us.
|
|
setStorageEnabled(true);
|
|
|
|
// Now, start an initial fetch.
|
|
fetchUrl(false);
|
|
}
|
|
|
|
void HttpContainer::fetchUrl(bool reload)
|
|
{
|
|
// Now we go about the business of fetching the URL with KIO
|
|
m_data.clear();
|
|
|
|
KIO::TransferJob *job = KIO::get(m_url, reload ? KIO::Reload : KIO::NoReload, KIO::HideProgressInfo);
|
|
connect(job, SIGNAL(data(KIO::Job*,QByteArray)),
|
|
this, SLOT(data(KIO::Job*,QByteArray)));
|
|
connect(job, SIGNAL(finished(KJob*)), this, SLOT(fetchFinished(KJob*)));
|
|
|
|
if (m_job) {
|
|
m_job.data()->kill();
|
|
}
|
|
|
|
m_job = job;
|
|
}
|
|
|
|
void HttpContainer::data(KIO::Job *job, const QByteArray &data)
|
|
{
|
|
if (job == m_job.data()) {
|
|
// we store the data as it arrives
|
|
m_data.append(data);
|
|
}
|
|
}
|
|
|
|
void HttpContainer::fetchFinished(KJob *job)
|
|
{
|
|
if (!job->error()) {
|
|
// We now set the data on the source with the retrieved data and some
|
|
// additional stats. Note that we don't include the source name, as that
|
|
// is implied as this object *is* the DataContainer. setData is called
|
|
// with just key/value pairs.
|
|
setData(QStringLiteral("Contents"), m_data);
|
|
setData(QStringLiteral("Size"), job->processedAmount(KJob::Bytes));
|
|
|
|
// Since we only create TransferJobs, it's safe to just static_cast here.
|
|
// In many real-world situations, this isn't the safest thing to do and a
|
|
// qobject_cast with a test on the result is often safer and cleaner.
|
|
KIO::TransferJob *tjob = static_cast<KIO::TransferJob *>(job);
|
|
setData(QStringLiteral("Error Page"), tjob->isErrorPage());
|
|
setData(QStringLiteral("Mimetype"), tjob->mimetype());
|
|
|
|
// Let DataContainer know we have data that needs storing
|
|
setNeedsToBeStored(true);
|
|
|
|
// Notify DataContainer that now is a good time to check to see that
|
|
// data has been updated. This will cause visualizations to be updated.
|
|
checkForUpdate();
|
|
|
|
// Clean up behind ourselves so there isn't unnecessary memory usage
|
|
m_data.clear();
|
|
}
|
|
}
|
|
|
|
|