private void OnDownloadCompletedOrCanceled(DownloadStateChangedEventArgs e)
{
Application.Current.Dispatcher.Invoke(() =>
{
DownloadTaskList.Remove(DownloadTaskList.FirstOrDefault(item => item.FileId == e.FileId));
});
RaisePropertyChanged(nameof(TotalDownloadQuantity));
OnDownloadProgressChanged(null, null);
}
private void InitialDownloadEvents(HttpDownload downloadInfo)
{
var taskInfo = DownloadTaskList.FirstOrDefault(item => item.FilePath.FullPath == downloadInfo.DownloadPath);
if (taskInfo != null)
{
downloadInfo.DownloadProgressChangedEvent += taskInfo.OnDownloadProgressChanged;
downloadInfo.DownloadStateChangedEvent += taskInfo.OnDownloadStateChanged;
}
downloadInfo.DownloadProgressChangedEvent += OnDownloadProgressChanged;
downloadInfo.DownloadStateChangedEvent += OnDownloadStateChanged;
}
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($"{DateTime.Now}: FileId={e.FileId}, OldState={e.OldState}, NewState={e.NewState}, IsStartAll={IsStartAll}");
}
public DownloadingPageViewModel()
{
InitialDownloadList();
TaskManager.GetTaskManagerByLocalDiskUser(MountUserRepository.MountedUser).TaskAddedCompleted += () =>
{
Application.Current.Dispatcher.Invoke(() =>
{
InitialDownloadList();
});
};
TaskManager.GetTaskManagerByLocalDiskUser(MountUserRepository.MountedUser).TaskCollectionChanged += (httpdownload) =>
{
Application.Current.Dispatcher.Invoke(() => InitialDownloadEvents(httpdownload));
};
var https = TaskManager.GetTaskManagerByLocalDiskUser(MountUserRepository.MountedUser).GetHttpDownloads();
foreach (var item in https)
{
if (item.DownloadState == DownloadStateEnum.Downloading)
{
var downloadingItem = DownloadTaskList.FirstOrDefault(p => p.FilePath.FullPath == item.DownloadPath);
if (downloadingItem != null)
{
downloadingItem.OnDownloadStateChanged(null,
new DownloadStateChangedEventArgs(DownloadStateEnum.Waiting, DownloadStateEnum.Downloading));
item.DownloadStateChangedEvent += downloadingItem.OnDownloadStateChanged;
item.DownloadProgressChangedEvent += downloadingItem.OnDownloadProgressChanged;
}
}
item.DownloadStateChangedEvent += OnDownloadStateChanged;
item.DownloadProgressChangedEvent += OnDownloadProgressChanged;
}
}
private void OnDownloadStateChanged(object sender, DownloadStateChangedEventArgs e)
{
RaisePropertyChanged(nameof(IsStartAll));
if (e.NewState == DownloadStateEnum.Completed || e.NewState == DownloadStateEnum.Canceld)
{
OnDownloadCompletedOrCanceled(e);
}
if (e.NewState == DownloadStateEnum.Downloading)
{
var temp = DownloadTaskList.FirstOrDefault(item => item.FileId == e.FileId);
var indexThis = DownloadTaskList.IndexOf(temp);
if (indexThis != 0)
{
Application.Current.Dispatcher.Invoke(() =>
{
DownloadTaskList.Insert(0, temp);
DownloadTaskList.Remove(temp);
});
}
}
Debug.WriteLine($"{DateTime.Now}: FileId={e.FileId}, OldState={e.OldState}, NewState={e.NewState}, IsStartAll={IsStartAll}");
}
private void OnDownloadCompletedOrCanceled(DownloadStateChangedEventArgs e)
{
DownloadTaskList.Remove(DownloadTaskList.FirstOrDefault(item => item.FileId == e.FileId));
OnPropertyChanged(nameof(TotalDownloadQuantity));
OnDownloadPregressChanged(null);
}
