记住B站视频或专辑播放进度
// ==UserScript==
// @author yungyu16
// @name BiliBili记住播放进度
// @description 记住B站视频或专辑播放进度
// @namespace yungyu16/bilibili-helper
// @version 1.0
// @website https://github.com/yungyu16/bilibili-helper
// @supportURL https://github.com/yungyu16/bilibili-helper/issues
// @supportURL https://raw.githubusercontent.com/yungyu16/bilibili-helper/master/index.js
// @include http*://www.bilibili.com/video/av*
// @include http*://www.bilibili.com/video/BV*
// @require https://lib.baomitu.com/qs/6.9.3/qs.min.js
// @require https://lib.baomitu.com/jquery/3.5.1/jquery.slim.min.js
// @grant GM_log
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_notification
// @grant unsafeWindow
// ==/UserScript==
const FLAG_DEBUG = false;
const REDIRECT_FLAG = '__bh_r_f'; //__bhelper_redirect_flag__
(function () {
'use strict';
let videoEl = $(".bilibili-player-video video").get(0);
let videoId = extractCurVideoId();
let settingKey = settingKeyBuilder(videoId);
doWithDebugMode(() => GM_log("当前视频id：", videoId));
//恢复播放上下文
switchPlayContext();
//保存播放上下文
savePlayContext();
//===========================================
// 正文开始
//===========================================
/**
* 切换播放上下文
*/
function switchPlayContext() {
let lastPage = GM_getValue(settingKey("lastPage"), 1);
let pageNo = extractCurPageNo();
let pageList = $('.list-box li');
let pageCount = pageList.length;
doWithDebugMode(() => {
GM_log("lastPage：", lastPage);
GM_log("pageCount：", pageCount);
});
//重定向到指定集
if (pageNo > 0) {
doWithDebugMode(() => GM_log("指定集数播放...无需重定向"));
}
if (pageCount > 0
&& pageNo < 0
&& lastPage > 1) { //当前链接没有携带集数参数
if ((pageNo) !== (lastPage / 1)) {
let thisQueryParams = parseQueryString();
thisQueryParams.p = lastPage;
setRedirectFlag(thisQueryParams); //添加重定向标记
location.href = `/video/${videoId}?${Qs.stringify(thisQueryParams)}`
}
}
//设置播放进度
if (getRedirectFlag()) { //检查重定向标记
let lastTime = GM_getValue(settingKey("lastTime"), 0);
doWithDebugMode(() => GM_log("lastTime：", lastTime));
if (lastTime > 0) {
setTimeout(() => {
if (videoEl.currentTime > 10) {
GM_log("B站已自动同步播放进度,无需重新定位");
return;
}
videoEl.currentTime = lastTime;
let progressMsg = `已定位到历史播放进度:${formatProgressSecond(lastTime)}`;
doWithDebugMode(() => {
let notifyParam = {
title: "bilibili-helper",
text: progressMsg,
silent: true,
timeout: 3000,
};
GM_notification(notifyParam);
});
GM_log("progressMsg：", progressMsg);
videoEl.play();
}, 4 * 1000);
}
}
}
/**
* 定时持久化播放上下文到
*/
function savePlayContext() {
setInterval(doSavePlayContext, 5 * 1000);
}
/**
* 持久化播放上下文到
*/
function doSavePlayContext() {
let pageNo = extractCurPageNo();
let currentTime = videoEl.currentTime;
GM_setValue(settingKey("lastPage"), pageNo);
GM_setValue(settingKey("lastTime"), currentTime <= 0 ? 0 : currentTime);
doWithDebugMode(() => GM_log("lastPage：", pageNo, ",lastTime:", formatProgressSecond(currentTime)));
}
/**
* 调试命令
*/
function doWithDebugMode(action) {
try {
if (FLAG_DEBUG) {
action();
}
} catch (e) {
GM_log("Bhelper调试指令执行异常：", e);
}
}
/**
* 播放进度格式化
*/
function formatProgressSecond(lastTime) {
return `${Math.floor(lastTime / 60)}m${Math.floor(lastTime % 60)}s`;
}
/**
* 拼接videoId av号、BV号
*/
function settingKeyBuilder(bv) {
return function (key) {
return bv + ":" + key;
}
}
/**
* 抽取videoId av号、BV号
*/
function extractCurVideoId() {
let pathname = location.pathname;
if (!pathname) {
return undefined;
}
if (pathname.endsWith("/")) {
pathname = pathname.substring(0, pathname.length - 1);
}
return pathname.substr(pathname.lastIndexOf('/') + 1);
}
/**
* 抽取pageNo 当前集数
*/
function extractCurPageNo() {
let queryParams = parseQueryString();
return queryParams.p ? queryParams.p : -1;
}
/**
* 解析url参数
*/
function parseQueryString() {
let searchStr = location.search;
if (!searchStr) {
return {};
}
return Qs.parse(searchStr.substr(1));
}
/**
* 获取重定向标记,获取一次后删除
*/
function getRedirectFlag() {
let queryParams = parseQueryString();
let redirectFlag = queryParams[REDIRECT_FLAG];
delete queryParams[REDIRECT_FLAG];
history.pushState(null, null, `${location.pathname}?${Qs.stringify(queryParams)}`);
return redirectFlag;
}
/**
* 设置重定向标记
*/
function setRedirectFlag(obj) {
obj[REDIRECT_FLAG] = 1;
}
})();