private void OnOpenScreenRequest(OpenScreenRequestSignal signal)
{
// First check if the type of screen is already opened (unless it's forced by setting the 'ForceOpen' property)
if (!signal.ForceOpen)
{
var screenExistsInNavigationStack = _navigationStack.Any(item => item.Type == signal.Type);
if (screenExistsInNavigationStack)
{
return; // If the type of screen does exists in the navigation stack we ignore the request
}
}
var screenController = _screenFactory.Create(signal.Type);
// Blur the previous screen (if there is one)
if (_navigationStack.Count > 0)
{
_navigationStack.Last().ScreenController.Blur();
}
// Push the new screen to the navigation stack and 'open' it
var newScreenStackItem = new ScreenStackItem
{
Type = signal.Type,
ScreenController = screenController
};
_navigationStack.Push(newScreenStackItem);
// Focus the new screen
screenController.Focus();
_currentFocussed = newScreenStackItem;
screenController.Open();
}
private void OnCloseScreenRequest(CloseScreenRequestSignal signal)
{
var subjectScreenStackItem = _navigationStack.FirstOrDefault(screenStackItem => screenStackItem.ScreenController == signal.ScreenController);
if (subjectScreenStackItem == null)
{
Debug.LogWarningFormat("Trying to close a screen '{0}', but it doesn't exist in the navigation stack!", signal.ScreenController.GetType().ToString());
return;
}
// If the closed screen was the screen in front, focus the next screen
var frontScreen = _navigationStack.Last();
if (signal.ScreenController == frontScreen.ScreenController)
{
var newFrontScreenStackItem = _navigationStack[_navigationStack.Count - 2];
newFrontScreenStackItem.ScreenController.Focus();
_currentFocussed = newFrontScreenStackItem;
}
// Close the screen
subjectScreenStackItem.ScreenController.Close();
}
