/// <summary>
/// Parameterless constructor.
/// </summary>
public PersistedDownloadTransfer()
: base()
{
_Method = "GET";
//_Headers = new KeyValuePair<string, string>();
_TransferStatus = ExtendedTransferStatus.None;
_FailedTransferAttempts = 0;
_IsIndeterminateTransfer = false;
_TotalBytesToReceive = -1;
_BytesReceived = 0;
_RequestId = string.Empty;
}
/// <summary>
/// Handler for the OnStatusChange event of a ITransferable object associated with a Page.
/// </summary>
/// <param name="Previous">The transfer status that the ITransferable object had before changing.</param>
/// <param name="Current">The transfer status that the ITransferable object currently has.</param>
public void StatusChangeHandler(ExtendedTransferStatus Previous, ExtendedTransferStatus Current, ITransferable Item)
{
Library.Page Page = FindByUID(Item.ExternalReference);
if (Page != null)
{
// Then add the item to the related collection based on its current status
switch (Current)
{
case ExtendedTransferStatus.Queued:
case ExtendedTransferStatus.Transferring:
case ExtendedTransferStatus.Waiting:
case ExtendedTransferStatus.WaitingForRetry:
case ExtendedTransferStatus.WaitingForWiFi:
case ExtendedTransferStatus.WaitingForExternalPower:
case ExtendedTransferStatus.WaitingForExternalPowerDueToBatterySaverMode:
case ExtendedTransferStatus.WaitingForNonVoiceBlockingNetwork:
case ExtendedTransferStatus.Paused:
case ExtendedTransferStatus.Canceled:
if (Previous == ExtendedTransferStatus.Completed)
{
_DownloadedPages.Remove(Page);
_PendingPages.Add(Page);
}
else if (Previous == ExtendedTransferStatus.Failed || Previous == ExtendedTransferStatus.FailedServer)
{
_FailedPages.Remove(Page);
_PendingPages.Add(Page);
}
break;
case ExtendedTransferStatus.Completed:
if (Previous == ExtendedTransferStatus.Failed || Previous == ExtendedTransferStatus.FailedServer)
{
_FailedPages.Remove(Page);
_DownloadedPages.Add(Page);
}
else if (Previous != ExtendedTransferStatus.Completed)
{
_PendingPages.Remove(Page);
_DownloadedPages.Add(Page);
}
break;
case ExtendedTransferStatus.Failed:
case ExtendedTransferStatus.FailedServer:
if (Previous == ExtendedTransferStatus.Completed)
{
_DownloadedPages.Remove(Page);
_FailedPages.Add(Page);
}
else if (Previous != ExtendedTransferStatus.Failed && Previous != ExtendedTransferStatus.FailedServer)
{
_PendingPages.Remove(Page);
_FailedPages.Add(Page);
}
break;
}
}
}