private void Platform_DownloadStateChanged(object sender, DownloadStateChangedEventArgs e)
{
_currentState = e.state;
switch (e.state)
{
case State.DownloadPreparing:
UserInput = null;
Notification = "Preparing download...";
break;
case State.DownloadRunning:
TotalImageCount = e.TotalImageCount;
Notification = $"Downloading {e.TotalImageCount} images";
RunDownloadCommand = new RelayCommand(CancelDownload);
RunDownloadButtonContent = "Cancel";
RunDLButtonIsEnabled = true;
break;
case State.DownloadCompleted:
RunDownloadCommand = new RelayCommand(RunDownload);
RunDownloadButtonContent = "Download";
Notification = "Completed";
if (e.FailedDownloads > 0)
{
Notification += $", {e.FailedDownloads} images couldn't be downloaded";
}
break;
case State.DownloadCanceled:
RunDownloadCommand = new RelayCommand(RunDownload);
RunDownloadButtonContent = "Download";
Notification = "Canceled";
if (e.ExceptionMsg != null)
{
Notification += ": " + e.ExceptionMsg;
}
if (e.FailedDownloads > 0)
{
Notification += $"\n{e.FailedDownloads} images couldn't be downloaded";
}
break;
case State.ExceptionRaised:
#if DEBUG
Debug.WriteLine($"ERR_MSG: {e.ExceptionMsg}");
#endif
break;
}
}
private void OnDownloadStateChanged(DownloadStateChangedEventArgs e)
{
OnPropertyChanged(nameof(IsStartAll));
if (e.NewState == DownloadStateEnum.Completed || e.NewState == DownloadStateEnum.Canceled)
{
OnDownloadCompletedOrCanceled(e);
}
if (e.NewState == DownloadStateEnum.Downloading)
{
var temp = DownloadTaskList.FirstOrDefault(item => item.FileId == e.FileId);
var indexThis = DownloadTaskList.IndexOf(temp);
if (indexThis != 0)
{
DownloadTaskList.Insert(0, temp);
DownloadTaskList.Remove(temp);
}
}
Debug.WriteLine($"{DateTime.Now}: FileId={e.FileId}, OldState={e.OldState}, NewState={e.NewState}, IsStartAll={IsStartAll}");
}
private void OnDownloadStateChanged(object sender, DownloadStateChangedEventArgs e)
{
RaisePropertyChanged(nameof(IsStartAll));
if (e.NewState == DownloadStateEnum.Completed || e.NewState == DownloadStateEnum.Canceld)
{
OnDownloadCompletedOrCanceled(e);
}
if (e.NewState == DownloadStateEnum.Downloading)
{
var temp = DownloadTaskList.FirstOrDefault(item => item.FileId == e.FileId);
var indexThis = DownloadTaskList.IndexOf(temp);
if (indexThis != 0)
{
Application.Current.Dispatcher.Invoke(() =>
{
DownloadTaskList.Insert(0, temp);
DownloadTaskList.Remove(temp);
});
}
}
Debug.WriteLine($"{DateTime.Now}: FileId={e.FileId}, OldState={e.OldState}, NewState={e.NewState}, IsStartAll={IsStartAll}");
}
private async void Download_DownloadStateChangedEvent(object sender, DownloadStateChangedEventArgs e)
{
var info = (HttpDownload)sender;
Debug.WriteLine($"PercentageChanged: Task: {info.DownloadPath} State: {e.OldState} -> {e.NewState}");
var fileId = _database.GetFileIdByPath(info.DownloadPath);
switch (e.NewState)
{
case DownloadStateEnum.Completed:
_database.SetCompleted(info.DownloadPath);
_downloadingTasks.Remove(info);
GetNextTask();
break;
case DownloadStateEnum.Waiting:
_downloadingTasks.Remove(info);
//暂停所做操作
break;
}
}
//--------------------------------------------------------Events:---------------------------------------------------------------------\\
#region --Events--
private void DOWNLOAD_HANDLER_DownloadStateChanged(AbstractDownloadableObject o, DownloadStateChangedEventArgs args)
{
if (o is ImageTable image)
{
ImageDBManager.INSTANCE.setImage(image);
}
}
private void OnDownloadCompletedOrCanceled(DownloadStateChangedEventArgs e)
{
DownloadTaskList.Remove(DownloadTaskList.FirstOrDefault(item => item.FileId == e.FileId));
OnPropertyChanged(nameof(TotalDownloadQuantity));
OnDownloadPregressChanged(null);
}
private void OnDownloadStateChanged(DownloadStateChangedEventArgs e)
{
DownloadSpeed = new DataSize();
DownloadState = e.NewState;
}
public void OnDownloadStateChanged(object sender, DownloadStateChangedEventArgs e)
{
DownloadSpeed = new DataSize();
DownloadState = e.NewState;
}
private void OnDownloadStateChanged(DownloadStateChangedEventArgs e)
{
}
private static void Client_DownloadStateChanged(object sender, DownloadStateChangedEventArgs e)
{
Console.WriteLine($"[DOWNLOAD] [{e.Filename}]: {e.PreviousState} ==> {e.State}");
}
private async void Img_DownloadStateChanged(ImageTable img, DownloadStateChangedEventArgs args)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() => await showImageAsync(img));
}
