// ==UserScript==
// @license MIT
// @name         ata 演示模式
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  给 ata 添加演示模式按钮
// @author       You
// @match        https://ata.alibaba-inc.com/articles/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=alibaba-inc.com
// @grant        unsafeWindow
// @downloadURL none
// ==/UserScript==

(function() {
    console.log("好的，我们开始添加全屏按钮。");
    let myId="guangfeng_fullscreen"

    function hook(){
        var fullscreenButton=document.createElement('a');
        fullscreenButton.id=myId
        fullscreenButton.text="📺 进入演示模式";
        fullscreenButton.href="javascript:document.querySelectorAll('div[class^=left_],div[class^=nav_]').forEach(el => el.style.display = 'none');document.body.style.zoom = '200%';document.documentElement.requestFullscreen()";
        document.querySelector('div[class^=meta-action_]').appendChild(fullscreenButton);
    };

    var hookInterval = setInterval(function(){
        console.log("开始检查，失败重试。");
        if(document.querySelector("#"+myId)){
            clearInterval(hookInterval);
        }else{
            hook();
        }
    }, 200);
})();