private async Task <bool> RecursiveDownloadFolder(String downloadPath, NodeViewModel folderNode)
{
if (String.IsNullOrWhiteSpace(folderNode.Name))
{
await new CustomMessageDialog(AppMessages.DownloadNodeFailed_Title,
AppMessages.AM_DownloadNodeFailedNoErrorCode, this.AppInformation).ShowDialogAsync();
return(false);
}
// Check for illegal characters in the folder name
if (FolderService.HasIllegalChars(folderNode.Name))
{
await new CustomMessageDialog(AppMessages.DownloadNodeFailed_Title,
String.Format(AppMessages.InvalidFolderNameOrPath, folderNode.Name),
this.AppInformation).ShowDialogAsync();
return(false);
}
try
{
String newDownloadPath = Path.Combine(downloadPath, folderNode.Name);
if (!await CheckDownloadPath(newDownloadPath))
{
return(false);
}
MNodeList childList = MegaSdk.getChildren(folderNode.OriginalMNode);
bool result = true; // Default value in case that the folder is empty
for (int i = 0; i < childList.size(); i++)
{
// To avoid pass null values to CreateNew
if (childList.get(i) == null)
{
continue;
}
var childNode = NodeService.CreateNew(this.MegaSdk, this.AppInformation, childList.get(i), ContainerType.CloudDrive);
// If node creation failed for some reason, continue with the rest and leave this one
if (childNode == null)
{
continue;
}
bool partialResult;
if (childNode.IsFolder)
{
partialResult = await RecursiveDownloadFolder(newDownloadPath, childNode);
}
else
{
partialResult = await DownloadFile(newDownloadPath, childNode);
}
// Only change the global result if the partial result indicates an error
if (!partialResult)
{
result = partialResult;
}
}
return(result);
}
catch (Exception e)
{
OnUiThread(() =>
{
new CustomMessageDialog(AppMessages.DownloadNodeFailed_Title,
String.Format(AppMessages.DownloadNodeFailed, e.Message),
App.AppInformation).ShowDialog();
});
return(false);
}
}
public async void Download(TransferQueue transferQueue, string downloadPath = null)
{
// User must be online to perform this operation
if (!IsUserOnline())
{
return;
}
if (AppInformation.PickerOrAsyncDialogIsOpen)
{
return;
}
if (downloadPath == null)
{
if (!await FolderService.SelectDownloadFolder(this))
{
return;
}
else
{
downloadPath = AppService.GetSelectedDownloadDirectoryPath();
}
}
OnUiThread(() => ProgressService.SetProgressIndicator(true, ProgressMessages.PrepareDownloads));
// Extra check to try avoid null values
if (String.IsNullOrWhiteSpace(downloadPath))
{
OnUiThread(() => ProgressService.SetProgressIndicator(false));
await new CustomMessageDialog(AppMessages.SelectFolderFailed_Title,
AppMessages.SelectFolderFailed, App.AppInformation,
MessageDialogButtons.Ok).ShowDialogAsync();
return;
}
// Check for illegal characters in the download path
if (FolderService.HasIllegalChars(downloadPath))
{
OnUiThread(() => ProgressService.SetProgressIndicator(false));
await new CustomMessageDialog(AppMessages.SelectFolderFailed_Title,
String.Format(AppMessages.InvalidFolderNameOrPath, downloadPath),
this.AppInformation).ShowDialogAsync();
return;
}
if (!await CheckDownloadPath(downloadPath))
{
OnUiThread(() => ProgressService.SetProgressIndicator(false));
return;
}
// If selected file is a folder then also select it childnodes to download
if (this.IsFolder)
{
await RecursiveDownloadFolder(downloadPath, this);
}
else
{
await DownloadFile(downloadPath, this);
}
OnUiThread(() => ProgressService.SetProgressIndicator(false));
// TODO Remove this global declaration in method
App.CloudDrive.NoFolderUpAction = true;
}