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Simple WaitForKeyElement

Library that Exports my simplified vanilla JS version of WaitForKeyElement, which is a simple async function that returns a Promise that resolves to an element by a given selector, when that element is found

Fra og med 01.10.2024. Se den nyeste version.

Dette script bør ikke installeres direkte. Det er et bibliotek, som andre scripts kan inkludere med metadirektivet // @require https://update.greatest.deepsurf.us/scripts/511024/1457631/Simple%20WaitForKeyElement.js 

// ==UserScript==
// @name        Simple WaitForKeyElement
// @license     MIT
// @namespace   1N07
// @match       *://*/*
// @version     1.0.1
// @author      1N07
// @description Library that Exports my simplified vanilla JS version of WaitForKeyElement, which is a simple async function that returns a Promise that resolves to an element by a given selector, when that element is found
// ==/UserScript==

async function WaitForKeyElement(selector, timeout) {
	return new Promise((resolve, reject) => {
		let el = document.querySelector(selector);
		if (el) {
			resolve(el);
			return;
		}
		new MutationObserver((mutationRecords, observer) => {
			el = document.querySelector(selector);
			if (el) {
				resolve(el);
				observer.disconnect();
			}
		}).observe(document.documentElement, { childList: true, subtree: true });
		if (timeout) {
			setTimeout(() => {
				reject(`WaitForKeyElement: "${selector}" timed out`);
			}, timeout);
		}
	});
}