MapComplete/UI/Base/TabbedComponent.ts

import Translations from "../i18n/Translations"
import { UIEventSource } from "../../Logic/UIEventSource"
import Combine from "./Combine"
import BaseUIElement from "../BaseUIElement"
import { VariableUiElement } from "./VariableUIElement"

export class TabbedComponent extends Combine {
    constructor(
        elements: { header: BaseUIElement | string; content: BaseUIElement | string }[],
        openedTab: UIEventSource<number> | number = 0,
        options?: {
            leftOfHeader?: BaseUIElement
            styleHeader?: (header: BaseUIElement) => void
        }
    ) {
        const openedTabSrc =
            typeof openedTab === "number"
                ? new UIEventSource(openedTab)
                : openedTab ?? new UIEventSource<number>(0)

        const tabs: BaseUIElement[] = [options?.leftOfHeader]
        const contentElements: BaseUIElement[] = []
        for (let i = 0; i < elements.length; i++) {
            let element = elements[i]
            const header = Translations.W(element.header).onClick(() => openedTabSrc.setData(i))
            openedTabSrc.addCallbackAndRun((selected) => {
                if (selected >= elements.length) {
                    selected = 0
                }
                if (selected === i) {
                    header.SetClass("tab-active")
                    header.RemoveClass("tab-non-active")
                } else {
                    header.SetClass("tab-non-active")
                    header.RemoveClass("tab-active")
                }
            })
            const content = Translations.W(element.content)
            content.SetClass("relative w-full inline-block")
            contentElements.push(content)
            const tab = header.SetClass("block tab-single-header")
            tabs.push(tab)
        }

        const header = new Combine(tabs).SetClass("tabs-header-bar")
        if (options?.styleHeader) {
            options.styleHeader(header)
        }
        const actualContent = new VariableUiElement(
            openedTabSrc.map((i) => contentElements[i])
        ).SetStyle("max-height: inherit; height: inherit")
        super([header, actualContent])
    }
}