public async Task ShowPopup(IViewModel contents)
{
await ClosePopup();
_currentPopup = new PopupWindow(_navigator) {
DataContext = contents
};
EventHandler windowClosed = null;
windowClosed = (sender, args) => {
FocusMainWindow();
_currentPopup.Closed -= windowClosed;
};
_currentPopup.Closed += windowClosed;
UnfocusMainWindow();
_currentPopup.ShowModal(_mainWindow, _appHost.UserInputManager);
}
public async Task ClosePopup()
{
if (_currentPopup != null) {
var context = _currentPopup.DataContext as IViewModel;
if (context != null) {
await context.Close();
}
_currentPopup.Close();
_currentPopup = null;
}
}