private void OnTextChanging(TextBox sender, TextBoxTextChangingEventArgs args)
{
if (!args.IsContentChanging)
{
return;
}
var newFilename = sender.Text;
var isFilenameValid = FileSystemUtility.IsFilenameValid(newFilename, out var error);
var nameChanged = string.Compare(_originalFilename, newFilename, StringComparison.OrdinalIgnoreCase) != 0;
var isExtensionSupported = false;
var fileExtension = FileTypeUtility.GetFileExtension(newFilename);
if (!_fileExists) // User can rename whatever they want for new file
{
isExtensionSupported = true;
}
else if (FileExtensionProvider.IsFileExtensionSupported(fileExtension))
{
// User can only rename an existing file if extension is supported by the app
// This is a Windows 10 UWP limitation
isExtensionSupported = true;
}
if (!isFilenameValid)
{
_errorMessageTextBlock.Foreground = new SolidColorBrush(Colors.Red);
_errorMessageTextBlock.Text = ResourceLoader.GetString($"InvalidFilenameError_{error}");
_errorMessageTextBlock.Visibility = Visibility.Visible;
}
else if (!isExtensionSupported)
{
_errorMessageTextBlock.Foreground = new SolidColorBrush(Colors.OrangeRed);
_errorMessageTextBlock.Text = string.IsNullOrEmpty(fileExtension)
? string.Format(ResourceLoader.GetString("FileRenameError_EmptyFileExtension"))
: string.Format(ResourceLoader.GetString("FileRenameError_UnsupportedFileExtension"), fileExtension);
_errorMessageTextBlock.Visibility = Visibility.Visible;
}
else
{
_errorMessageTextBlock.Visibility = Visibility.Collapsed;
}
IsPrimaryButtonEnabled = isFilenameValid && nameChanged && isExtensionSupported;
}
public static FileSavePicker GetFileSavePicker(ITextEditor textEditor)
{
FileSavePicker savePicker = new FileSavePicker
{
SuggestedStartLocation = PickerLocationId.DocumentsLibrary
};
var fileName = textEditor.EditingFileName ?? textEditor.FileNamePlaceholder;
var extension = FileTypeUtility.GetFileExtension(fileName).ToLower();
if (FileExtensionProvider.TextDocumentFileExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
{
savePicker.FileTypeChoices.Add("Text Documents", FileExtensionProvider.TextDocumentFileExtensions.ToList());
savePicker.FileTypeChoices.Add("All Supported Files", AllSupportedExtensions);
savePicker.FileTypeChoices.Add("Unknown", new List <string>()
{
"."
});
}
else if (AllSupportedExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
{
savePicker.FileTypeChoices.Add("All Supported Files", AllSupportedExtensions);
savePicker.FileTypeChoices.Add("Text Documents", FileExtensionProvider.TextDocumentFileExtensions.ToList());
savePicker.FileTypeChoices.Add("Unknown", new List <string>()
{
"."
});
}
else
{
savePicker.FileTypeChoices.Add("Unknown", new List <string>()
{
"."
});
savePicker.FileTypeChoices.Add("Text Documents", FileExtensionProvider.TextDocumentFileExtensions.ToList());
savePicker.FileTypeChoices.Add("All Supported Files", AllSupportedExtensions);
}
savePicker.SuggestedFileName = fileName;
return(savePicker);
}
private bool TryRename()
{
var newFileName = _fileNameTextBox.Text;
if (string.Compare(_originalFilename, newFileName, StringComparison.OrdinalIgnoreCase) == 0)
{
return(false);
}
if (!FileSystemUtility.IsFilenameValid(newFileName, out var error))
{
return(false);
}
if (_fileExists && !FileExtensionProvider.IsFileExtensionSupported(FileTypeUtility.GetFileExtension(newFileName)))
{
return(false);
}
_confirmedAction(newFileName.Trim());
return(true);
}
// Here we track the file extension opened by user but not supported by Notepads.
// This information will be used to on-board new extension support for future release.
// Because UWP does not allow user to associate arbitrary file extension with the app.
// File name will not and should not be tracked.
private void TrackFileExtensionIfNotSupported(StorageFile file)
{
try
{
var extension = FileTypeUtility.GetFileExtension(file.Name).ToLower();
if (!FileExtensionProvider.AllSupportedFileExtensions.Contains(extension))
{
if (string.IsNullOrEmpty(extension))
{
extension = "<NoExtension>";
}
Analytics.TrackEvent("UnsupportedFileExtension", new Dictionary <string, string>()
{
{ "Extension", extension },
});
}
}
catch (Exception)
{
// ignore
}
}