skip video
// ==UserScript==
// @name chaoxingJump
// @namespace http://tampermonkey.net/
// @version 0.8
// @description skip video
// @author You
// @match http://mooc1-2.chaoxing.com/mycourse/studentstudy*
// @icon https://www.google.com/s2/favicons?domain=ouchn.cn
// @grant none
// @license MIT
// ==/UserScript==
(function () {
'use strict';
block('mouseout', window);
check();
// Your code here...
})();
function block(eventName, window) {
window.addEventListener(eventName, (event) => {
event.stopImmediatePropagation();
}, true);
}
function check() {
var n = nextService();
var r = retryService();
var v = videoService();
console.log("经过测试,interval 在切换视频时不会改变");
var lock = setInterval(function () {
console.info("开始检测是否播放完毕.....");
if(!n.correct()){
console.log("出现故障了，无法跳转到下一个作业,无法处理，清除定时作业,lock:", lock);
clearInterval(lock);
return;
}
v.create();
v.prop();
if (!v.exist() && !r.retry()) {
console.log("判定为当前页面没有视频，直接下一个作业");
n.nextVideo();
return;
}
v.failover();
v.next(n);
}, 3000);
}
function retryService() {
var retryCount = 0;
var maxRetry = 3;
return {
retry() {
if (retryCount < maxRetry) {
console.log('可能是由于加载缓慢导致的未初始化问题，重试次数:' + retryCount + '，最大次数:' + maxRetry)
retryCount++;
return true;
} else {
retryCount = 0;
return false;
}
}
}
}
function videoService() {
let video = null;
let body = null;
function getBody() {
try {
return document.querySelector('#iframe').contentDocument.querySelector('iframe').contentDocument;
} catch (error) {
console.log("获取body出现了错误");
return null;
}
}
return {
create() {
body = getBody();
if (body == null){
video = null;
return;
};
video = body.querySelector('#video_html5_api');
},
prop() {
if (this.exist() && video.playbackRate == 1) {
video.playbackRate = 2;
video.muted = true;
}
},
exist() {
return video != null && typeof video != 'undefined'
},
failover() {
if (this.exist() && video.paused && video.duration != video.currentTime) {
console.log("暂停或者没播放完毕，继续播放");
body.querySelector('.vjs-play-control').click();
return true;
}
return false;
},
next(n) {
if (this.exist() && video.duration == video.currentTime) {
console.log("播放完毕，下一个视频");
n.nextVideo();
}
}
}
}
function nextService() {
// 是否按了下一个的按钮
let isNext = false;
// 当前的url,比较下一个按钮是否生效
let currentURL = window.location.href;
function isOk() {
return currentURL !== window.location.href && isNext
}
function syncError() {
return currentURL == window.location.href && isNext
}
return {
nextVideo() {
console.log("开始播放下一个视频");
document.querySelector(".orientationright ").click();
isNext = true;
},
correct() {
if (isOk()) {
console.log("翻页成功");
currentURL = window.location.href;
isNext = false;
} else if (syncError()) {
return false;
}
return true;
}
}
}