lite moxy

lite-moxy.kt

interface LitePresenter<T : Any> {
    fun attachView(view: LiteView<T>)
    fun detachView()
}

open class BaseLitePresenter<T : Any> : LitePresenter<T> {

    private val buffer = ArrayList<T>()
    private var view: LiteView<T>? = null
    private var firstAttached = false

    fun dispatch(msg: T) {
        if (msg !is SkipStrategyMsg) {
            buffer.removeAll { msg::class == it::class }
            buffer.add(msg)
        }
        view?.update(msg)
    }

    override fun attachView(view: LiteView<T>) {
        this.view = view
        if (!firstAttached) {
            onFirstViewAttach()
            firstAttached = true
        }
        buffer.forEach(view::update)
    }

    override fun detachView() {
        this.view = null
    }

    open fun onFirstViewAttach() = Unit
}

interface SkipStrategyMsg

interface LiteView<T> {
    fun update(msg: T)
}