- DownloadManager code in place

[qtrapids] / src / plugins / searchplugin / DownloadManager.cpp

diff --git a/src/plugins/searchplugin/DownloadManager.cpp b/src/plugins/searchplugin/DownloadManager.cpp
new file mode 100644 (file)
index 0000000..01e2cb4
--- /dev/null
+++ b/src/plugins/searchplugin/DownloadManager.cpp
@@ -0,0 +1,96 @@
+/***************************************************************************
+ *   Copyright (C) 2009 by Lassi Väätämöinen   *
+ *   lassi.vaatamoinen@ixonos.com   *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <QDebug>
+
+#include "DownloadManager.h"
+
+
+DownloadManager::DownloadManager(QObject *parent) :
+       QObject(parent) // Superclass construct
+{
+}
+
+DownloadManager::DownloadManager(QUrl url, QString outfile, QObject *parent) :
+       QObject(parent), // Superclass construct
+       url_(url),
+       filepath_(outfile),
+       file_(QString(outfile))
+{
+       file_.open(QIODevice::WriteOnly);
+}
+
+
+DownloadManager::~DownloadManager()
+{
+       file_.close();
+       delete reply_; reply_ = NULL;
+}
+
+
+void DownloadManager::start()
+{
+       reply_ = manager_.get(QNetworkRequest(url_));
+       
+       connect(reply_, SIGNAL(readyRead()), this, SLOT(on_readyRead()));
+       connect(reply_, SIGNAL(downloadProgress (qint64 , qint64)), SLOT(on_downloadProgress(qint64, qint64))); 
+       connect(reply_, SIGNAL(finished()), this, SLOT(on_replyFinished()));
+}
+
+
+void DownloadManager::on_readyRead()
+{
+       //qDebug() << "on_readyRead()";
+        WriteToFile();
+}
+
+void DownloadManager::on_downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
+{
+       static double last = 0;
+       
+       double prog = static_cast<double>(bytesReceived) / static_cast<double>(bytesTotal);
+       if ((prog-last) >= 0.01) {
+               last = prog;
+               emit progress(static_cast<int>(100*prog));
+       } else if (bytesReceived == bytesTotal) {
+               emit progress(100);
+       }
+       
+}
+
+void DownloadManager::on_replyFinished()
+{
+       WriteToFile();
+       file_.close();
+       emit finished(filepath_);
+}
+
+
+void DownloadManager::WriteToFile() 
+{
+       QByteArray readData = reply_->readAll();
+       
+       if (readData.isEmpty()) {
+               qDebug() << "on_replyFinished(): No data available for reading";
+       } else {
+               file_.write(readData);
+               /// @todo check file_.error()
+       }
+}