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#include "subtitlebrowserpage.h"
#include "subtitleparser.h"
#include "qtiocompressor.h"
#include <QVBoxLayout>
#include <QtWebKit>
#include <QNetworkReply>
#include <QMessageBox>
#include <QDataStream>
#include <QTextStream>
#include <QByteArray>
#include <QBuffer>
#include <QTextEdit>
#include <QLabel>
SubtitleHolder::SubtitleHolder(QWidget *parent)
: QWidget(parent)
{
QHBoxLayout *layout = new QHBoxLayout;
m_label = new QLabel;
layout->addWidget(m_label);
setLayout(layout);
setSubtitleParser(0);
}
void SubtitleHolder::setSubtitleParser(SubtitleParser *parser)
{
if (parser == 0) {
m_label->setText(tr("<big>No subtitle is selected.</big>"));
m_subtitleParser = 0;
emit subtitleParserChanged();
return;
}
m_subtitleParser = parser;
m_label->setText(tr("<big><font color=green>Selected: %1.</font></big>").arg(parser->fileName()));
emit subtitleParserChanged();
}
void SubtitleHolder::setErrorMessage(const QString &error)
{
m_label->setText(QString("<big><font color=red>%1</font></big>").arg(error));
}
void SubtitleHolder::setDownloading()
{
m_label->setText(tr("<big>Downloading...</big>"));
}
SubtitleParser* SubtitleHolder::subtitleParser() const
{
return m_subtitleParser;
}
SubtitleBrowserPage::SubtitleBrowserPage(QWidget *parent)
: QWizardPage(parent),
m_downloadReply(0)
{
setTitle(tr("Subtitle Selection"));
setSubTitle(tr("Browse for the subtitle on the web"));
QVBoxLayout *layout = new QVBoxLayout;
m_subtitleHolder = new SubtitleHolder;
registerField("subtitle*", m_subtitleHolder, "subtitleParser", SIGNAL(subtitleParserChanged()));
m_browser = new QWebView;
m_browser->page()->setForwardUnsupportedContent(true);
connect(m_browser->page()->networkAccessManager(), SIGNAL(finished(QNetworkReply*)), this, SLOT(subtitleDownloaded(QNetworkReply*)));
connect(m_browser->page(), SIGNAL(unsupportedContent(QNetworkReply*)), this, SLOT(subtitleRequested(QNetworkReply*)));
layout->addWidget(m_browser);
layout->addWidget(m_subtitleHolder);
setLayout(layout);
}
void SubtitleBrowserPage::initializePage()
{
m_subtitleHolder->setSubtitleParser(0);
QUrl url(QString("http://subscene.com/filmsearch.aspx"));
url.addQueryItem(QLatin1String("q"), field("movieTitle").toString());
m_browser->load(url);
}
void SubtitleBrowserPage::subtitleRequested(QNetworkReply *reply)
{
if (reply->url().path().contains(QString("dlpath"))) {
m_subtitleHolder->setDownloading();
if (reply->header(QNetworkRequest::ContentTypeHeader) == QLatin1String("application/zip")) {
m_downloadReply = reply;
} else {
m_downloadReply = 0;
reply->close();
m_subtitleHolder->setErrorMessage(tr("Only zip files are current supported."));
}
} else {
m_downloadReply = 0;
reply->close();
}
}
void SubtitleBrowserPage::subtitleDownloaded(QNetworkReply *reply)
{
if (m_downloadReply != reply) return;
bool foundSrt = false;
SubtitleParser *subtitleData = 0;
forever {
// Zip format "local file header" fields:
quint32 signature, crc, compSize, unCompSize;
quint16 extractVersion, bitFlag, compMethod, modTime, modDate;
quint16 nameLen, extraLen;
QDataStream s(m_downloadReply);
s.setByteOrder(QDataStream::LittleEndian);
s >> signature;
if (signature != 0x04034b50) // zip local file header magic number
break;
if (foundSrt) {
m_subtitleHolder->setErrorMessage(tr("This zip file has multiple subtitle files. Please choose one that only has one subtitle file."));
return;
}
s >> extractVersion >> bitFlag >> compMethod;
s >> modTime >> modDate >> crc >> compSize >> unCompSize;
s >> nameLen >> extraLen;
const QByteArray fileName = m_downloadReply->read(nameLen);
m_downloadReply->read(extraLen);
QByteArray compData = m_downloadReply->read(compSize);
if (fileName.toLower().endsWith(".srt"))
foundSrt = true;
else
break;
if (compMethod == 0) {
QBuffer uncompBuf(&compData);
subtitleData = new SubtitleParser(&uncompBuf, fileName);
}
else {
QBuffer compBuf(&compData);
QtIOCompressor compressor(&compBuf);
compressor.setStreamFormat(QtIOCompressor::RawZipFormat);
compressor.open(QIODevice::ReadOnly);
subtitleData = new SubtitleParser(&compressor, fileName);
}
}
m_subtitleHolder->setSubtitleParser(subtitleData);
if (subtitleData == 0) {
m_subtitleHolder->setErrorMessage(tr("There were no srt files in this zip. Please choose another one."));
return;
}
}
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