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])

    }

}