private async Task FetchFilesToDownload(string remotePath, StorageFolder localFolder, ICollection <FileTransferInfo> resultOutput,
BooleanReference overwriteAll, BooleanReference skipAll, BooleanReference cancelAll)
{
var remoteFiles = await client.GetListingAsync(remotePath);
foreach (var item in remoteFiles)
{
if (cancelAll.Value)
{
return;
}
if (item.Type == FluentFTP.FtpFileSystemObjectType.File)
{
StorageFile file = null;
if (overwriteAll.Value)
{
file = await localFolder.CreateFileAsync(item.Name, CreationCollisionOption.ReplaceExisting);
}
else
{
try
{
file = await localFolder.CreateFileAsync(item.Name, CreationCollisionOption.FailIfExists);
}
catch //TODO: catch what?
{
if (skipAll.Value)
{
continue;
}
OverwriteDialog content = new OverwriteDialog
{
Text = string.Format("文件{0}已存在，是否覆盖？", item.Name),
CheckBoxText = "对所有项目执行此操作"
};
ContentDialog dialog = new ContentDialog()
{
Content = content,
PrimaryButtonText = "覆盖",
IsPrimaryButtonEnabled = true,
SecondaryButtonText = "跳过",
IsSecondaryButtonEnabled = true,
CloseButtonText = "取消"
};
switch (await dialog.ShowAsync())
{
case ContentDialogResult.Primary:
if (content.IsChecked)
{
overwriteAll.Value = true;
}
file = await localFolder.CreateFileAsync(item.Name, CreationCollisionOption.ReplaceExisting);
break;
case ContentDialogResult.Secondary:
if (content.IsChecked)
{
skipAll.Value = true;
}
continue;
case ContentDialogResult.None:
cancelAll.Value = true;
return;
}
}
}
resultOutput.Add(new FileTransferInfo
{
File = file,
RemotePath = item.FullName
});
}
else
{
var subFolder = await localFolder.CreateFolderAsync(item.Name, CreationCollisionOption.OpenIfExists);
await FetchFilesToDownload(item.FullName, subFolder, resultOutput, overwriteAll, skipAll, cancelAll);
}
}
}
private async Task UploadFilesAsync(IEnumerable <FileTransferInfo> fileInfos)
{
await ftpSemaphore.WaitAsync();
try
{
progressBar.Visibility = Visibility.Visible;
progressBar.IsIndeterminate = true;
cancelSource = new CancellationTokenSource();
bool overwriteAll = false;
bool skipAll = false;
var count = fileInfos.Count();
int doneCount = 0;
foreach (var fileInfo in fileInfos)
{
if (!overwriteAll && await client.FileExistsAsync(fileInfo.RemotePath))
{
if (skipAll)
{
continue;
}
OverwriteDialog content = new OverwriteDialog
{
Text = string.Format("文件{0}已存在，是否覆盖？", fileInfo.File.Name),
CheckBoxText = "对所有项目执行此操作"
};
ContentDialog dialog = new ContentDialog()
{
Content = content,
PrimaryButtonText = "覆盖",
IsPrimaryButtonEnabled = true,
SecondaryButtonText = "跳过",
IsSecondaryButtonEnabled = true,
CloseButtonText = "取消"
};
switch (await dialog.ShowAsync())
{
case ContentDialogResult.Primary:
if (content.IsChecked)
{
overwriteAll = true;
}
break;
case ContentDialogResult.Secondary:
if (content.IsChecked)
{
skipAll = true;
}
continue;
case ContentDialogResult.None:
goto CancelAll;
}
}
jobManager.AddUploadFile(client, fileInfo.RemotePath, fileInfo.File, () => { });
doneCount++;
progressBar.Value = (double)doneCount / count * 100;
}
CancelAll:
jobListFlyout.ShowAt(jobListButton);
}
finally
{
ftpSemaphore.Release();
progressBar.Visibility = Visibility.Collapsed;
}
}
