MapComplete/UI/Input/VariableInputElement.ts

import { ReadonlyInputElement } from "./InputElement"
import { Store } from "../../Logic/UIEventSource"
import BaseUIElement from "../BaseUIElement"
import { VariableUiElement } from "../Base/VariableUIElement"

export default class VariableInputElement<T>
    extends BaseUIElement
    implements ReadonlyInputElement<T>
{
    private readonly value: Store<T>
    private readonly element: BaseUIElement
    private readonly upstream: Store<ReadonlyInputElement<T>>

    constructor(upstream: Store<ReadonlyInputElement<T>>) {
        super()
        this.upstream = upstream
        this.value = upstream.bind((v) => v.GetValue())
        this.element = new VariableUiElement(upstream)
    }

    GetValue(): Store<T> {
        return this.value
    }

    IsValid(t: T): boolean {
        return this.upstream.data.IsValid(t)
    }

    protected InnerConstructElement(): HTMLElement {
        return this.element.ConstructElement()
    }
}