Function onElementAppeared

webapp/_webapp/src/libs/helpers.ts:4–22

(selector: string, callback: (element: Element) => void)

import { storage } from "./storage";

export async function onElementAppeared(selector: string, callback: (element: Element) => void) {
  const element = document.querySelector(selector);
  if (element) {
    return callback(element);
  }

  const observer = new MutationObserver(() => {
    const element = document.querySelector(selector);
    if (element) {
      observer.disconnect();
      callback(element);
    }
  });

  observer.observe(document.body, {
    childList: true,
    subtree: true,
  });
}

export function onElementAdded(selector: string, callback: (element: Element) => void) {
  const observer = new MutationObserver((mutations) => {