//Windows.Storage.StorageFolder RecvFolder = null;
//private async Task SaveAFile3(FileDetail rcvFile)
//{
// if (RecvFolder==null)
// {
// PostMessage("SaveAFile3", "Operation cancelled as no Recv folder.");
// return;
// }
// Windows.Storage.StorageFile file = await RecvFolder.CreateFileAsync(rcvFile.filename,Windows.Storage.CreationCollisionOption.GenerateUniqueName);
// if (file == null)
// {
// PostMessage("SaveAFile3", "Operation cancelled as failed to create file.");
// return;
// }
// // Prevent updates to the remote version of the file until
// // we finish making changes and call CompleteUpdatesAsync.
// Windows.Storage.CachedFileManager.DeferUpdates(file);
// // write to file
// await Windows.Storage.FileIO.WriteTextAsync(file, rcvFile.txt);
// // Let Windows know that we're finished changing the file so
// // the other app can update the remote version of the file.
// // Completing updates may require Windows to ask for user input.
// Windows.Storage.Provider.FileUpdateStatus status =
// await Windows.Storage.CachedFileManager.CompleteUpdatesAsync(file);
// if (status == Windows.Storage.Provider.FileUpdateStatus.Complete)
// {
// PostMessage("File ", file.Name + " was saved in \r\n" + file.Path);
// }
// else
// {
// PostMessage("File ", file.Name + " couldn't be saved.");
// }
//}
internal async void SaveFile(FileDetail rcvFile)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
await SaveAFile2(rcvFile);
});
}
// private async Task SaveAFile(string txt)
// {
// bool usedPicker = true;
// FileSavePicker savePicker = null;
// Windows.Storage.StorageFile file = null;
//#if IoTCore
//#else
// savePicker = new Windows.Storage.Pickers.FileSavePicker();
//#endif
// if (savePicker != null)
// {
// savePicker.SuggestedStartLocation =
// Windows.Storage.Pickers.PickerLocationId.DocumentsLibrary;
// // Dropdown of file types the user can save the file as
// savePicker.FileTypeChoices.Add("Plain Text", new List<string>() { ".txt" });
// // Default file name if the user does not type one in or select a file to replace
// savePicker.SuggestedFileName = "New Document";
// file = await savePicker.PickSaveFileAsync();
// if (file == null)
// {
// PostMessage("SaveAFile", "Operation cancelled.");
// rcvr = null;
// return;
// }
// }
// FileDetail rcvFile = await rcvr.ReadAsync();
// if (rcvFile == null)
// {
// PostMessage("SaveAFile", "Operation failed.");
// rcvr = null;
// return;
// }
// if (savePicker != null)
// {
// await file.RenameAsync(rcvFile.filename);
// }
// else
// {
// usedPicker = false;
// Windows.Storage.StorageFolder storageFolder =
// Windows.Storage.ApplicationData.Current.LocalFolder;
// file =
// await storageFolder.CreateFileAsync(rcvFile.filename,
// Windows.Storage.CreationCollisionOption.ReplaceExisting);
// }
// if (file != null)
// {
// // Prevent updates to the remote version of the file until
// // we finish making changes and call CompleteUpdatesAsync.
// Windows.Storage.CachedFileManager.DeferUpdates(file);
// // write to file
// await Windows.Storage.FileIO.WriteTextAsync(file, rcvFile.txt);
// // Let Windows know that we're finished changing the file so
// // the other app can update the remote version of the file.
// // Completing updates may require Windows to ask for user input.
// Windows.Storage.Provider.FileUpdateStatus status =
// await Windows.Storage.CachedFileManager.CompleteUpdatesAsync(file);
// if (status == Windows.Storage.Provider.FileUpdateStatus.Complete)
// {
// PostMessage( "File " , file.Name + " was saved in \r\n" + file.Path);
// }
// else
// {
// PostMessage( "File " , file.Name + " couldn't be saved.");
// }
// }
// rcvr = null;
// }
private async Task SaveAFile2(FileDetail rcvFile)
{
FileSavePicker savePicker = null;
Windows.Storage.StorageFile file = null;
savePicker = new Windows.Storage.Pickers.FileSavePicker();
savePicker.SuggestedStartLocation =
Windows.Storage.Pickers.PickerLocationId.DocumentsLibrary;
// Dropdown of file types the user can save the file as
savePicker.FileTypeChoices.Add("Plain Text", new List <string>()
{
".txt"
});
// Default file name if the user does not type one in or select a file to replace
savePicker.SuggestedFileName = rcvFile.filename;
file = await savePicker.PickSaveFileAsync();
if (file == null)
{
PostMessage("SaveAFile", "Operation cancelled.");
return;
}
//await file.RenameAsync(rcvFile.filename);
// Prevent updates to the remote version of the file until
// we finish making changes and call CompleteUpdatesAsync.
Windows.Storage.CachedFileManager.DeferUpdates(file);
// write to file
await Windows.Storage.FileIO.WriteTextAsync(file, rcvFile.txt);
// Let Windows know that we're finished changing the file so
// the other app can update the remote version of the file.
// Completing updates may require Windows to ask for user input.
Windows.Storage.Provider.FileUpdateStatus status =
await Windows.Storage.CachedFileManager.CompleteUpdatesAsync(file);
if (status == Windows.Storage.Provider.FileUpdateStatus.Complete)
{
PostMessage("File ", file.Name + " was saved in \r\n" + file.Path);
}
else
{
PostMessage("File ", file.Name + " couldn't be saved.");
}
}
public async Task ReadAsync(StreamSocket _socket)
{
FileDetail fi = new FileDetail();
Connected = true;
MainPage.root.RecvConnected = true;
using (DataReader reader = new DataReader(_socket.InputStream))
{
try
{
//Read filename then file contents
for (int i = 0; (i < 2); i++)
{
if (_socket == null)
{
Connected = false;
}
else if (_socket.InputStream == null)
{
Connected = false;
}
;
if (Connected)
{
// Based on the protocol we've defined, the first uint is the size of the message
uint readLength = await reader.LoadAsync(sizeof(uint));
// Check if the size of the data is expected (otherwise the remote has already terminated the connection)
if (readLength < sizeof(uint))
{
//remoteDisconnection = true;
Connected = false;
}
else
{
uint currentLength = reader.ReadUInt32();
// Load the rest of the message since you already know the length of the data expected.
readLength = await reader.LoadAsync(currentLength);
// Check if the size of the data is expected (otherwise the remote has already terminated the connection)
if (readLength < currentLength)
{
Connected = false;
}
else
{
string message = reader.ReadString(currentLength);
if (message == Constants.EndTransmission)
{
Connected = false;
}
else
{
if (i == 0)
{
fi.filename = message;
}
else
{
fi.txt = message;
MainPage.root.SaveFile(fi);
}
}
}
}
}
}
}
// Catch exception HRESULT_FROM_WIN32(ERROR_OPERATION_ABORTED).
catch (Exception ex) when((uint)ex.HResult == 0x800703E3)
{
PostMessage("OBEX_Receiver.ReadAsync", ex.Message);
fi = null;
Connected = false;
}
reader.DetachStream();
}
MainPage.root.RecvConnected = false;
if (_socket != null)
{
_socket.Dispose();
}
Connected = false;
}
