向 latexlive.com 添加复制按钮，方便快速复制 latex
// ==UserScript==
// @name 向 latexlive.com 添加复制按钮
// @namespace http://tampermonkey.net/
// @version 0.2
// @description 向 latexlive.com 添加复制按钮，方便快速复制 latex
// @author Cesaryuan
// @match https://*.latexlive.com/*
// @icon https://www.google.com/s2/favicons?domain=latexlive.com
// @grant none
// @license MIT
// ==/UserScript==
(function () {
'use strict';
// create a new button
var btn = document.createElement('button');
btn.innerHTML = '复制';
// add class to btn
btn.className = 'btn btn-light theme-fill';
// set id
btn.id = 'copy-btn';
// add click handler
btn.onclick = function () {
// get the selected element
var selected = document.querySelector('#txta_input');
// copy the text
navigator.clipboard.writeText(selected.value);
toast('复制成功');
};
var CONTAINER = "#wrap_immediate > row > div.col-5.col-sm-5.col-md-5.col-lg-5.col-xl-5";
// wait container appear and add btn
var interval = setInterval(function () {
var wrap = document.querySelector(CONTAINER);
if (wrap) {
wrap.appendChild(btn);
clearInterval(interval);
}
}, 100);
function toast(msg) {
var toast = document.createElement('div');
toast.className = 'toast';
toast.innerHTML = msg;
toast.style.position = 'fixed';
toast.style.bottom = '10px';
toast.style.right = '10px';
toast.style.zIndex = '9999';
toast.style.backgroundColor = '#fff';
toast.style.color = '#000';
toast.style.padding = '10px';
toast.style.borderRadius = '5px';
toast.style.boxShadow = '0 0 5px #000';
toast.style.fontSize = '16px';
toast.style.fontWeight = 'bold';
toast.style.opacity = '0';
toast.style.transition = 'opacity 0.5s';
document.body.appendChild(toast);
setTimeout(function () {
toast.style.opacity = '1';
}, 100);
setTimeout(function () {
toast.style.opacity = '0';
}, 2000);
setTimeout(function () {
toast.remove();
}, 3000);
}
})();