public void Finished()
{
DownloadState = DownloadStates.Finished;
ProgressPercentage = 100; //100%
DownloadedSize = FileSize;
AssociatedDownloadControl.UpdateProgress();
}
// Pause download
public void Pause()
{
if (DownloadState == DownloadStates.InProgress)
{
DownloadState = DownloadStates.Paused;
AssociatedDownloadControl.UpdateProgress();
}
}
public void Cancel()
{
if (DownloadState == DownloadStates.InProgress)
{
DownloadState = DownloadStates.Canceled;
ResetProperties();
AssociatedDownloadControl.UpdateProgress();
}
}
// Restart download
public void Restart()
{
if (DownloadState == DownloadStates.Canceled || DownloadState == DownloadStates.Finished)
{
ResetProperties();
if (File.Exists(DownloadTo))
{
File.Delete(DownloadTo);
}
DownloadState = DownloadStates.PreStart;
AssociatedDownloadControl.UpdateProgress();
Task.Run(() => AssociatedDownloadControl.AssociatedView.Dispatcher.Invoke(() =>
{
Start();
}));
}
}
public void Downloading()
{
// Download file bytes until the download is paused, canceled or completed
while (DownloadState != DownloadStates.Canceled && DownloadState != DownloadStates.Finished &&
DownloadState != DownloadStates.Paused)
{
try
{
// Read data from the response stream and write it to the buffer
bytesSize = binaryReader.Read(downloadBuffer, 0, (int)FileSize);
if (bytesSize > 0)
{
Array.Copy(downloadBuffer, 0, totalDownloadBuffer, lastBytesSize, bytesSize); //copying the content to the full buffer
_downloadBytes.Add(bytesSize);
DownloadedSize = _downloadBytes.Sum();
ProgressPercentage = (int)(((float)DownloadedSize / (float)FileSize) * 100);
AssociatedDownloadControl.UpdateProgress();
Array.Clear(downloadBuffer, 0, bytesSize); //clearing for future content
if (DownloadedSize >= FileSize)
{
Finished();
}
}
else
{
Finished();
}
lastBytesSize += bytesSize;
}
catch (Exception)
{
break;
}
}
if (DownloadState == DownloadStates.Finished)
{
File.WriteAllBytes(DownloadTo, totalDownloadBuffer);
Stop();
}
}
