jellyfin-web/src/components/alert.js

import { appRouter } from "./router/appRouter";
import browser from "../scripts/browser";
import dialog from "./dialog/dialog";
import globalize from "../scripts/globalize";

function useNativeAlert() {
    // webOS seems to block modals
    // Tizen 2.x seems to block modals
    return (
        !browser.web0s &&
        !(browser.tizenVersion && browser.tizenVersion < 3) &&
        browser.tv &&
        window.alert
    );
}

export default async function (text, title) {
    let options;
    if (typeof text === "string") {
        options = {
            title: title,
            text: text,
        };
    } else {
        options = text;
    }

    await appRouter.ready();

    if (useNativeAlert()) {
        alert((options.text || "").replaceAll("<br/>", "\n"));
        return Promise.resolve();
    } else {
        const items = [];

        items.push({
            name: globalize.translate("ButtonGotIt"),
            id: "ok",
            type: "submit",
        });

        options.buttons = items;
        return dialog.show(options);
    }
}