/*
* Here we handle Close command by requesting MenuScreenViewModel.
* Indeed, all the SubScreens are tightly coupled with MenuScreen
* However, it is not difficult at all to introduce more generic solution.
* Or you can move this logic to the MainMenuService, to avoid this coupling.
* You'll need to add CloseCommand handler to the MainMenuService and implement it.
*/
public override void Close(SubScreenViewModel viewModel) {
base.Close(viewModel);
Publish(new RequestMainMenuScreenCommand()
{
ScreenType = typeof(MenuScreenViewModel)
});
}
private void ScreenAdded(SubScreenViewModel screen)
{
//if screen is of current type, activate it; else deactivate it
screen.IsActive = MainMenuRoot.CurrentScreenType == screen.GetType();
}
public virtual void Close(SubScreenViewModel viewModel) {
}
public override void InitializeSubScreen(SubScreenViewModel viewModel) {
base.InitializeSubScreen(viewModel);
}
public virtual void InitializeSubScreen(SubScreenViewModel viewModel) {
// This is called when a SubScreenViewModel is created
viewModel.Close.Action = this.CloseHandler;
SubScreenViewModelManager.Add(viewModel);
}