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
此腳本不應該直接安裝，它是一個供其他腳本使用的函式庫。欲使用本函式庫，請在腳本 metadata 寫上： // @require https://update.greasyfork.org/scripts/511024/1751703/Simple%20WaitForKeyElement.js
// ==UserScript==
// @name Simple WaitForKeyElement
// @license Unlicense
// @namespace 1N07
// @match *://*/*
// @version 1.1.0
// @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: "${selector}" timed out`);
}, timeout);
}
});
}
async function WaitForKeyElementOnDocument(doc, selector, timeout) {
return new Promise((resolve, reject) => {
let el = doc.querySelector(selector);
if (el) {
resolve(el);
return;
}
new MutationObserver((mutationRecords, observer) => {
el = doc.querySelector(selector);
if (el) {
resolve(el);
observer.disconnect();
}
}).observe(doc.documentElement, { childList: true, subtree: true });
if (timeout) {
setTimeout(() => {
reject(`WaitForKeyElement: "${selector}" timed out`);
}, timeout);
}
});
}