Greasy Fork is available in English.
Waits for an element using the MutationObserver API
Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greasyfork.org/scripts/523012/1519437/WaitForKeyElement.js
// ==UserScript==
// @name WaitForKeyElement
// @namespace Violentmonkey Scripts
// @version 1.1
// @description Waits for an element using the MutationObserver API
// @author PaywallDespiser
// @grant none
// ==/UserScript==
/**
* Waits for a element of a given selector.
*
* @param {string} selector
* @param {Element} [target=document.body]
* @returns {Promise<Element>}
*/
function waitForKeyElement(selector, target = document.body) {
return new Promise((resolve) => {
{
const element = target.querySelector(selector);
if (element) {
return resolve(element);
}
}
const observer = new MutationObserver((mutations) => {
for (const mutation of mutations) {
for (const node of mutation.addedNodes) {
if (!(node instanceof HTMLElement)) continue;
if (node.matches(selector)) {
observer.disconnect();
resolve(node);
return;
}
const childElement = node.querySelector(selector);
if (childElement) {
observer.disconnect();
resolve(childElement);
return;
}
}
}
});
observer.observe(target, {
childList: true,
subtree: true,
attributes: false,
characterData: false,
});
});
}