/// <summary>
/// Initializes a new instance of <see cref="DownloadProgressEventArgs"/>.
/// </summary>
/// <param name="task">The affected download task.</param>
/// <param name="loadedBytes">The number of already downloaded bytes.</param>
/// <param name="totalBytes">The total number of bytes, this HTTP(S) resource encompasses.</param>
/// <param name="percentage">The percentage of the progress.</param>
public DownloadProgressEventArgs(DownloadTask task, long loadedBytes, long totalBytes, int percentage)
: base(task)
{
LoadedBytes = loadedBytes;
TotalBytes = totalBytes;
Percentage = percentage;
}
private void ResolveUrl(DownloadTask task, WebClient wc)
{
bool foundResolver;
var resolvedUrl = ResolveUrl(task.Url, out foundResolver, wc);
if (foundResolver)
{
if (resolvedUrl != null)
{
task.ResolvedUrl = resolvedUrl;
}
else
{
task.UrlResolutionFailed = true;
}
}
}
private void OnDownloadStarted(DownloadTask task)
{
Debug.WriteLine("Raising event DownloadStarted for " + task.Id + ", Url=" + task.Url);
var handler = DownloadStarted;
if (handler != null)
{
handler(this, new DownloadEventArgs(task));
}
}
private void OnDownloadProgress(DownloadTask task, long bytesDownloaded, long totalBytes, int percentage)
{
var handler = DownloadProgress;
if (handler != null)
{
handler(this, new DownloadProgressEventArgs(task, bytesDownloaded, totalBytes, percentage));
}
}
private void OnDownloadEnded(DownloadTask task)
{
Debug.WriteLine("Raising event DownloadEnded for " + task.Id + ", Error=" + task.ErrorMessage ?? "None");
var handler = DownloadEnded;
if (handler != null)
{
handler(this, new DownloadEventArgs(task));
}
}
/// <summary>
/// Enqueues a new download task.
/// </summary>
/// <param name="task">The download task.</param>
public void Enqueue(DownloadTask task)
{
Debug.WriteLine("Queuing " + task.Id + ", TargetFile=" + task.TargetFile + ", URL=" + task.Url);
var notify = false;
lock (queueLock)
{
if (IsDisposed) { throw new ObjectDisposedException(GetType().Name); }
queue.Enqueue(task);
if (!working)
{
working = true;
notify = true;
}
}
availableTasks.Release();
if (notify)
{
OnIsWorkingChanged();
}
}
/// <summary>
/// Initializes a new instance of <see cref="DownloadEventArgs"/>.
/// </summary>
/// <param name="task">The download task, affected by this event.</param>
public DownloadEventArgs(DownloadTask task)
{
Task = task;
}
