package stone

type CallbackManager struct {
	onQuit      func ()
	onPress     func (button Button)
	onRelease   func (button Button)
	onResize    func ()
	onMouseMove func (x, y int)
	onScroll    func (x, y int)
	onStart     func ()
}

func (manager *CallbackManager) RunQuit () {
	if manager.onQuit == nil { return }
	manager.onQuit()
}

func (manager *CallbackManager) RunPress (button Button) {
	if manager.onPress == nil { return }
	manager.onPress(button)
}

func (manager *CallbackManager) RunRelease (button Button) {
	if manager.onRelease == nil { return }
	manager.onRelease(button)
}

func (manager *CallbackManager) RunResize () {
	if manager.onResize == nil { return }
	manager.onResize()
}

func (manager *CallbackManager) RunMouseMove (x, y int) {
	if manager.onMouseMove == nil { return }
	manager.onMouseMove(x, y)
}

func (manager *CallbackManager) RunScroll (x, y int) {
	if manager.onScroll == nil { return }
	manager.onScroll(x, y)
}

func (manager *CallbackManager) RunStart () {
	if manager.onStart == nil { return }
	manager.onStart()
}