+ fix download dialog
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5200 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
This commit is contained in:
wmayer
@@ -30,139 +30,177 @@
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using namespace Gui::Dialog;
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DownloadDialog::DownloadDialog( QUrl download_url, QString s, QString p )
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DownloadDialog::DownloadDialog(const QUrl& url, QWidget *parent)
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: QDialog(parent), url(url)
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{
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this->setAttribute(Qt::WA_DeleteOnClose);
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stopped = false;
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purpose = s;
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url = download_url;
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path = p;
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statusLabel = new QLabel( QLatin1String(""), this );
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progressDialog = new QProgressDialog(this);
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statusLabel = new QLabel(url.toString());
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progressBar = new QProgressBar(this);
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downloadButton = new QPushButton(tr("Download"));
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downloadButton->setDefault(true);
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cancelButton = new QPushButton(tr("Cancel"));
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closeButton = new QPushButton(tr("Close"));
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closeButton->setAutoDefault(false);
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buttonBox = new QDialogButtonBox;
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buttonBox->addButton(downloadButton, QDialogButtonBox::ActionRole);
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buttonBox->addButton(closeButton, QDialogButtonBox::RejectRole);
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buttonBox->addButton(cancelButton, QDialogButtonBox::RejectRole);
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cancelButton->hide();
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http = new QHttp(this);
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buffer = new QBuffer(&ba, this);
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progressDialog->setLabel(statusLabel);
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QFileInfo fi( url.toString() );
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if ( true != url.isValid() ||
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true == url.host().isEmpty() )
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{
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return;
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}
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else
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{
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statusLabel->setText( fi.fileName() );
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}
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connect(http, SIGNAL(requestFinished(int, bool)),
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this, SLOT(httpRequestFinished(int, bool)));
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connect(http, SIGNAL(dataReadProgress(int, int)),
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this, SLOT(updateDataReadProgress(int, int)));
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connect(http, SIGNAL(responseHeaderReceived(const QHttpResponseHeader &)),
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this, SLOT(readResponseHeader(const QHttpResponseHeader &)));
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connect(http, SIGNAL(authenticationRequired(const QString &, quint16, QAuthenticator *)),
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this, SLOT(slotAuthenticationRequired(const QString &, quint16, QAuthenticator *)));
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connect(downloadButton, SIGNAL(clicked()), this, SLOT(downloadFile()));
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connect(cancelButton, SIGNAL(clicked()), this, SLOT(cancelDownload()));
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connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));
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buffer->open(QBuffer::ReadWrite);
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QHBoxLayout *topLayout = new QHBoxLayout;
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topLayout->addWidget(statusLabel);
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if ( url.port() == -1 )
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{
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http->setHost( url.host(), 80 );
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}
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else
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{
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http->setHost( url.host(), url.port() );
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}
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http_request_id = http->get(url.path(), buffer);
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QObject::connect( http,
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SIGNAL( requestFinished(int, bool) ),
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this,
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SLOT( request_finished(int, bool) ) );
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QObject::connect( http,
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SIGNAL( dataReadProgress(int, int)),
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this,
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SLOT( update_progress(int, int) ) );
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QObject::connect( http,
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SIGNAL( responseHeaderReceived(const QHttpResponseHeader &) ),
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this,
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SLOT( read_response_header(const QHttpResponseHeader &) ) );
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QObject::connect( progressDialog,
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SIGNAL( canceled() ),
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this,
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SLOT( cancel_download() ) );
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QVBoxLayout *mainLayout = new QVBoxLayout;
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mainLayout->addLayout(topLayout);
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mainLayout->addWidget(progressBar);
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mainLayout->addWidget(buttonBox);
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setLayout(mainLayout);
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setWindowTitle(tr("Download"));
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}
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DownloadDialog::~DownloadDialog()
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{
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}
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void DownloadDialog::request_finished( int request_id , bool request_error )
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void DownloadDialog::downloadFile()
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{
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if ( true == stopped ){
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buffer->close();
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progressDialog->hide();
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QFileInfo fileInfo(url.path());
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QString fileName = fileInfo.fileName();
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if (QFile::exists(fileName)) {
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if (QMessageBox::question(this, tr("Download"),
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tr("There already exists a file called %1 in "
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"the current directory. Overwrite?").arg(fileName),
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QMessageBox::Yes|QMessageBox::No, QMessageBox::No) == QMessageBox::No)
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return;
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QFile::remove(fileName);
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}
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file = new QFile(fileName);
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if (!file->open(QIODevice::WriteOnly)) {
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QMessageBox::information(this, tr("Download"),
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tr("Unable to save the file %1: %2.")
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.arg(fileName).arg(file->errorString()));
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delete file;
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file = 0;
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return;
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}
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if ( http_request_id != request_id ){
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return;
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}
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QHttp::ConnectionMode mode = url.scheme().toLower() == QLatin1String("https")
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? QHttp::ConnectionModeHttps : QHttp::ConnectionModeHttp;
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http->setHost(url.host(), mode, url.port() == -1 ? 80 : url.port());
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if (!url.userName().isEmpty())
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http->setUser(url.userName(), url.password());
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if ( true == request_error ) {
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stopped = true;
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buffer->close();
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progressDialog->hide();
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download_finished( this, false, purpose, path, http->errorString() );
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}else{
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stopped = true;
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buffer->close();
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progressDialog->hide();
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download_finished( this, true, purpose, path, QLatin1String("") );
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}
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httpRequestAborted = false;
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QByteArray path = QUrl::toPercentEncoding(url.path(), "!$&'()*+,;=:@/");
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if (path.isEmpty())
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path = "/";
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httpGetId = http->get(QString::fromAscii(path), file);
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statusLabel->setText(tr("Downloading %1.").arg(fileName));
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downloadButton->setEnabled(false);
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cancelButton->show();
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closeButton->hide();
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}
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void DownloadDialog::read_response_header( const QHttpResponseHeader & response_header )
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void DownloadDialog::cancelDownload()
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{
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if ( true == stopped ) {
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return;
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}
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if ( response_header.statusCode() != 200 ) {
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stopped = true;
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progressDialog->hide();
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http->abort();
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download_finished( this, false, purpose, path, response_header.reasonPhrase() );
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}
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}
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QByteArray DownloadDialog::return_data()
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{
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return ba;
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}
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void DownloadDialog::update_progress( int read_bytes, int total_bytes )
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{
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if ( true == stopped ){
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return;
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}
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progressDialog->setMaximum(total_bytes);
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progressDialog->setValue(read_bytes);
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}
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void DownloadDialog::cancel_download()
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{
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statusLabel->setText(tr("Canceled."));
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stopped = true;
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statusLabel->setText(tr("Download canceled."));
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httpRequestAborted = true;
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http->abort();
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buffer->close();
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close();
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}
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void DownloadDialog::closeEvent( QCloseEvent * e )
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void DownloadDialog::httpRequestFinished(int requestId, bool error)
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{
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if ( stopped == false ){
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stopped = true;
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http->abort();
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buffer->close();
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if (requestId != httpGetId)
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return;
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if (httpRequestAborted) {
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if (file) {
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file->close();
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file->remove();
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delete file;
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file = 0;
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}
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progressBar->hide();
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return;
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}
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e->accept();
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if (requestId != httpGetId)
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return;
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progressBar->hide();
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file->close();
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if (error) {
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file->remove();
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QMessageBox::information(this, tr("Download"),
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tr("Download failed: %1.")
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.arg(http->errorString()));
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}
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else {
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QString fileName = QFileInfo(url.path()).fileName();
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statusLabel->setText(tr("Downloaded %1 to current directory.").arg(fileName));
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}
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downloadButton->setEnabled(true);
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cancelButton->hide();
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closeButton->show();
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delete file;
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file = 0;
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}
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#include "moc_DownloadDialog.cpp"
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void DownloadDialog::readResponseHeader(const QHttpResponseHeader &responseHeader)
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{
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switch (responseHeader.statusCode()) {
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case 200: // Ok
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case 301: // Moved Permanently
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case 302: // Found
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case 303: // See Other
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case 307: // Temporary Redirect
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// these are not error conditions
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break;
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default:
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QMessageBox::information(this, tr("Download"),
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tr("Download failed: %1.")
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.arg(responseHeader.reasonPhrase()));
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httpRequestAborted = true;
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progressBar->hide();
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http->abort();
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}
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}
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void DownloadDialog::updateDataReadProgress(int bytesRead, int totalBytes)
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{
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if (httpRequestAborted)
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return;
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progressBar->setMaximum(totalBytes);
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progressBar->setValue(bytesRead);
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}
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void DownloadDialog::slotAuthenticationRequired(const QString &hostName, quint16, QAuthenticator *authenticator)
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{
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}
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#include "moc_DownloadDialog.cpp"
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