File indexing completed on 2024-10-06 06:41:03

0001 /*
0002     This file is part of the KDE libraries
0003     SPDX-FileCopyrightText: 2006 Allan Sandfeld Jensen <kde@carewolf.com>
0004 
0005     SPDX-License-Identifier: LGPL-2.0-only
0006 */
0007 
0008 #include "filejob.h"
0009 
0010 #include "job_p.h"
0011 #include "worker_p.h"
0012 
0013 class KIO::FileJobPrivate : public KIO::SimpleJobPrivate
0014 {
0015 public:
0016     FileJobPrivate(const QUrl &url, const QByteArray &packedArgs)
0017         : SimpleJobPrivate(url, CMD_OPEN, packedArgs)
0018         , m_open(false)
0019         , m_size(0)
0020     {
0021     }
0022 
0023     bool m_open;
0024     QString m_mimetype;
0025     KIO::filesize_t m_size;
0026 
0027     void slotRedirection(const QUrl &url);
0028     void slotData(const QByteArray &data);
0029     void slotMimetype(const QString &mimetype);
0030     void slotOpen();
0031     void slotWritten(KIO::filesize_t);
0032     void slotFinished();
0033     void slotPosition(KIO::filesize_t);
0034     void slotTruncated(KIO::filesize_t);
0035     void slotTotalSize(KIO::filesize_t);
0036 
0037     /**
0038      * @internal
0039      * Called by the scheduler when a @p worker gets to
0040      * work on this job.
0041      * @param worker the worker that starts working on this job
0042      */
0043     void start(Worker *worker) override;
0044 
0045     Q_DECLARE_PUBLIC(FileJob)
0046 
0047     static inline FileJob *newJob(const QUrl &url, const QByteArray &packedArgs)
0048     {
0049         FileJob *job = new FileJob(*new FileJobPrivate(url, packedArgs));
0050         job->setUiDelegate(KIO::createDefaultJobUiDelegate());
0051         return job;
0052     }
0053 };
0054 
0055 using namespace KIO;
0056 
0057 FileJob::FileJob(FileJobPrivate &dd)
0058     : SimpleJob(dd)
0059 {
0060 }
0061 
0062 FileJob::~FileJob()
0063 {
0064 }
0065 
0066 void FileJob::read(KIO::filesize_t size)
0067 {
0068     Q_D(FileJob);
0069     if (!d->m_open) {
0070         return;
0071     }
0072 
0073     KIO_ARGS << size;
0074     d->m_worker->send(CMD_READ, packedArgs);
0075 }
0076 
0077 void FileJob::write(const QByteArray &_data)
0078 {
0079     Q_D(FileJob);
0080     if (!d->m_open) {
0081         return;
0082     }
0083 
0084     d->m_worker->send(CMD_WRITE, _data);
0085 }
0086 
0087 void FileJob::seek(KIO::filesize_t offset)
0088 {
0089     Q_D(FileJob);
0090     if (!d->m_open) {
0091         return;
0092     }
0093 
0094     KIO_ARGS << KIO::filesize_t(offset);
0095     d->m_worker->send(CMD_SEEK, packedArgs);
0096 }
0097 
0098 void FileJob::truncate(KIO::filesize_t length)
0099 {
0100     Q_D(FileJob);
0101     if (!d->m_open) {
0102         return;
0103     }
0104 
0105     KIO_ARGS << KIO::filesize_t(length);
0106     d->m_worker->send(CMD_TRUNCATE, packedArgs);
0107 }
0108 
0109 void FileJob::close()
0110 {
0111     Q_D(FileJob);
0112     if (!d->m_open) {
0113         return;
0114     }
0115 
0116     d->m_worker->send(CMD_CLOSE);
0117     // ###  close?
0118 }
0119 
0120 KIO::filesize_t FileJob::size()
0121 {
0122     Q_D(FileJob);
0123     if (!d->m_open) {
0124         return 0;
0125     }
0126 
0127     return d->m_size;
0128 }
0129 
0130 // Worker sends data
0131 void FileJobPrivate::slotData(const QByteArray &_data)
0132 {
0133     Q_Q(FileJob);
0134     Q_EMIT q_func()->data(q, _data);
0135 }
0136 
0137 void FileJobPrivate::slotRedirection(const QUrl &url)
0138 {
0139     Q_Q(FileJob);
0140     // qDebug() << url;
0141     Q_EMIT q->redirection(q, url);
0142 }
0143 
0144 void FileJobPrivate::slotMimetype(const QString &type)
0145 {
0146     Q_Q(FileJob);
0147     m_mimetype = type;
0148     Q_EMIT q->mimeTypeFound(q, m_mimetype);
0149 }
0150 
0151 void FileJobPrivate::slotPosition(KIO::filesize_t pos)
0152 {
0153     Q_Q(FileJob);
0154     Q_EMIT q->position(q, pos);
0155 }
0156 
0157 void FileJobPrivate::slotTruncated(KIO::filesize_t length)
0158 {
0159     Q_Q(FileJob);
0160     Q_EMIT q->truncated(q, length);
0161 }
0162 
0163 void FileJobPrivate::slotTotalSize(KIO::filesize_t t_size)
0164 {
0165     m_size = t_size;
0166     Q_Q(FileJob);
0167     q->setTotalAmount(KJob::Bytes, m_size);
0168 }
0169 
0170 void FileJobPrivate::slotOpen()
0171 {
0172     Q_Q(FileJob);
0173     m_open = true;
0174     Q_EMIT q->open(q);
0175 }
0176 
0177 void FileJobPrivate::slotWritten(KIO::filesize_t t_written)
0178 {
0179     Q_Q(FileJob);
0180     Q_EMIT q->written(q, t_written);
0181 }
0182 
0183 void FileJobPrivate::slotFinished()
0184 {
0185     Q_Q(FileJob);
0186     // qDebug() << this << m_url;
0187     m_open = false;
0188 
0189     Q_EMIT q->fileClosed(q);
0190 
0191     // Return worker to the scheduler
0192     workerDone();
0193     // Scheduler::doJob(this);
0194     q->emitResult();
0195 }
0196 
0197 void FileJobPrivate::start(Worker *worker)
0198 {
0199     Q_Q(FileJob);
0200     q->connect(worker, &KIO::WorkerInterface::data, q, [this](const QByteArray &ba) {
0201         slotData(ba);
0202     });
0203 
0204     q->connect(worker, &KIO::WorkerInterface::redirection, q, [this](const QUrl &url) {
0205         slotRedirection(url);
0206     });
0207 
0208     q->connect(worker, &KIO::WorkerInterface::mimeType, q, [this](const QString &mimeType) {
0209         slotMimetype(mimeType);
0210     });
0211 
0212     q->connect(worker, &KIO::WorkerInterface::open, q, [this]() {
0213         slotOpen();
0214     });
0215 
0216     q->connect(worker, &KIO::WorkerInterface::finished, q, [this]() {
0217         slotFinished();
0218     });
0219 
0220     q->connect(worker, &KIO::WorkerInterface::position, q, [this](KIO::filesize_t pos) {
0221         slotPosition(pos);
0222     });
0223 
0224     q->connect(worker, &KIO::WorkerInterface::truncated, q, [this](KIO::filesize_t length) {
0225         slotTruncated(length);
0226     });
0227 
0228     q->connect(worker, &KIO::WorkerInterface::written, q, [this](KIO::filesize_t dataWritten) {
0229         slotWritten(dataWritten);
0230     });
0231 
0232     q->connect(worker, &KIO::WorkerInterface::totalSize, q, [this](KIO::filesize_t size) {
0233         slotTotalSize(size);
0234     });
0235 
0236     SimpleJobPrivate::start(worker);
0237 }
0238 
0239 FileJob *KIO::open(const QUrl &url, QIODevice::OpenMode mode)
0240 {
0241     // Send decoded path and encoded query
0242     KIO_ARGS << url << mode;
0243     return FileJobPrivate::newJob(url, packedArgs);
0244 }
0245 
0246 #include "moc_filejob.cpp"