// ==UserScript== // @name 超星键盘控制优化 // @namespace https://greasyfork.org/zh-CN/users/782923-aaaasea // @version 1.2.1 // @description 优化超星键盘控制观看体验,小键盘上下左右控制时间音量,加减控制倍速,若无效请单击窗口任一处再尝试,若仍无效请反馈 // @author Asea Q:569389750 // @match https://mooc1-1.chaoxing.com/mycourse/studentstudy* // @icon data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw== // @grant none // @downloadURL none // ==/UserScript== (function() { mainfn_flag = false window.onload =()=>{ if(mainfn_flag===false) { mainfn = setInterval(mainkeybind, 1000); mainfn_flag = true; } } var old_url = window.location.href; if(mainfn_flag===false) { mainfn = setInterval(mainkeybind, 1000); mainfn_flag = true; } function mainkeybind(){ if(document.readyState == 'complete'){ // console.log('---超星键盘控制优化---') // console.log('开始绑定') urlfn = setInterval(url_listener, 2000) //reurn false 禁止函数内部执行其他的事件或者 var vol = 0.1; //1代表100%音量,每次增减0.1 var time = 5; //单位秒,每次增减10秒 var rate = 0.2 try { var videoElement = document.getElementById("iframe").contentWindow.document.querySelector("iframe").contentWindow.document.querySelector('video'); // console.log('变量设置完毕') document.onkeyup = keybind videoElement.onkeyup = keybind function keybind(event) {//键盘事件 // console.log("keyCode:" + event.keyCode); var e = event || window.event || arguments.callee.caller.arguments[0]; //鼠标上下键控制视频音量 if (e && e.keyCode === 38) { // 按 向上键 videoElement.volume !== 1 ? videoElement.volume += vol : 1; return false; } else if (e && e.keyCode === 40) { // 按 向下键 videoElement.volume !== 0 ? videoElement.volume -= vol : 1; return false; } else if (e && e.keyCode === 37) { // 按 向左键 videoElement.currentTime !== 0 ? videoElement.currentTime -= time : 1; return false; } else if (e && e.keyCode === 39) { // 按 向右键 videoElement.volume !== videoElement.duration ? videoElement.currentTime += time : 1; return false; } else if (e && e.keyCode === 32) { // 按空格键 判断当前是否暂停 videoElement.paused === true ? videoElement.play() : videoElement.pause(); return false; } else if(e && e.keyCode === 187) { videoElement.playbackRate > 0 && videoElement.playbackRate < 16 ? videoElement.playbackRate = (videoElement.playbackRate+rate).toFixed(1) : 1; return false; } else if(e && e.keyCode === 189) { videoElement.playbackRate > rate ? videoElement.playbackRate = (videoElement.playbackRate-rate).toFixed(1) : 1; return false; } }; console.log('键盘事件绑定成功') clearInterval(mainfn); mainfn_flag = false; } catch{ console.log('loading') } } } function url_listener() { var now_url = window.location.href; if (now_url !== old_url) { old_url = now_url; mainfn = setInterval(mainkeybind, 500); clearInterval(urlfn); } } })();