private void OpenFileInternal(string filename)
{
var exitingFile = _openFiles.FirstOrDefault(openfile => openfile.FileName == filename);
if (exitingFile != null)
{
SelectedFile = exitingFile;
return;
}
var file = new OpenFileViewModel(this);
file.Ready += delegate {
Dispatcher.CurrentDispatcher.InvokeAsync(() => {
try {
file.OpenFile(filename);
}
catch (Exception ex) {
OpenFiles.Remove(file);
MessageBoxService.ShowMessage($"Error: {ex.Message}", Constants.AppTitle);
}
});
};
OpenFiles.Add(file);
_recentFiles.Remove(filename);
_recentFiles.Insert(0, filename);
if (_recentFiles.Count > 10)
{
_recentFiles.RemoveAt(9);
}
SelectedFile = file;
}
public void CloseFile(OpenFileViewModel file)
{
int index = OpenFiles.IndexOf(file);
Debug.Assert(index >= 0);
file.Dispose();
OpenFiles.RemoveAt(index);
if (--index < 0)
{
index = 0;
}
if (OpenFiles.Count > 0)
{
SelectedFile = OpenFiles[index];
}
}
