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旧版播放器可用CC字幕，ASS/SRT/LRC格式字幕下载，本地ASS/SRT/LRC格式字幕加载
当前为
// ==UserScript==
// @name Bilibili CC字幕助手
// @namespace indefined
// @version 0.3.5.3
// @description 旧版播放器可用CC字幕，ASS/SRT/LRC格式字幕下载，本地ASS/SRT/LRC格式字幕加载
// @author indefined
// @supportURL https://github.com/indefined/UserScripts/issues
// @include https://www.bilibili.com/video/av*
// @license MIT
// @grant none
// ==/UserScript==
(function() {
'use strict';
const elements = {
oldUIElement:`
<div class="bilibili-player-video-btn" id="bilibili-player-subtitle-btn" style="display: block;">
<span id="subtitle-icon"></span>
<style type="text/css" id="subtitle-font-setting-style"></style>
<style type="text/css">
#bilibili-player-subtitle-btn:hover>#subtitle-setting-panel {
display: block!important;
}
.subtitle-color-select-item {
width: 15px;
height: 15px;
float: left;
cursor: pointer;
border: 1px solid rgba(0,0,0,.3);
margin-right: 10px;
}
#subtitle-setting-panel input[type="range"] {
background-color: #ebeff4;
-webkit-appearance: none;
height:4px;
transform: translateY(-4px);
}
#subtitle-setting-panel input[type="range"]::-webkit-slider-thumb {
-webkit-appearance: none;
height: 15px;
width: 15px;
background: #fff;
border-radius: 15px;
border: 1px solid;
}
</style>
<div id="subtitle-setting-panel" style="position: absolute;bottom: 28px;right: 30px;background: white;\
border-radius: 4px;text-align: left;padding: 13px;display: none;cursor:default;width:220px">
<div>
<div>字幕</div><select style="width: 50%;" id="subtitle-language">
<option value="close">关闭</option></select>
<button id="subtitle-download">下载字幕</button>
<button id="subtitle-upload" style="margin-right: 13px;">添加字幕</button>
</div><div>
<div>字体大小</div>
<input style="width: 70%;" type="range" id="subtitle-font-size" step="25">
<input type="checkbox" id="subtitle-auto-resize">
<label for="subtitle-auto-resize" style="cursor:pointer">自动缩放</label>
</div><div>
<div>字幕颜色</div><div>
<ul id="subtitle-color" style="list-style: none;white-space: normal;">
<li class="subtitle-color-select-item" data-value="16777215" style="background: #ffffff;" title="白色"></li>
<li class="subtitle-color-select-item" data-value="16007990" style="background: #F44336;" title="红色"></li>
<li class="subtitle-color-select-item" data-value="10233776" style="background: #9C27B0;" title="紫色"></li>
<li class="subtitle-color-select-item" data-value="6765239" style="background: #673AB7;" title="深紫色"></li>
<li class="subtitle-color-select-item" data-value="4149685" style="background: #3F51B5;" title="靛青色"></li>
<li class="subtitle-color-select-item" data-value="2201331" style="background: #2196F3;" title="蓝色"></li>
<li class="subtitle-color-select-item" data-value="240116" style="background: #03A9F4;" title="亮蓝色"></li>
</ul><br></div>
<div><span>位置</span>
<select id="subtitle-position" style="width: 35%;">
<option value="bl">左下角</option>
<option value="bc">底部居中</option>
<option value="br">右下角</option>
<option value="tl">左上角</option>
<option value="tc">顶部居中</option>
<option value="tr">右上角</option></select>
<span>描边</span>
<select id="subtitle-shadow" style="width: 35%;">
<option value="0">无描边</option>
<option value="1">重墨</option>
<option value="2">描边</option>
<option value="3">45°投影</option>
</select>
</div>
</div><div>
<div>背景不透明度</div>
<input style="width: 100%;" type="range" id="subtitle-background-opacity">
</div>
</div></div>
`,
oldEnableIcon:`
<svg width="22" height="28" viewbox="0 0 22 30" xmlns="http://www.w3.org/2000/svg">
<path id="svg_1" fill-rule="evenodd" fill="#99a2aa" d="m4.07787,6.88102l14,0a2,2 0 0 1 2,2l0,10a2,2 0 0 \
1 -2,2l-14,0a2,2 0 0 1 -2,-2l0,-10a2,2 0 0 1 2,-2zm5,5.5a1,1 0 1 0 0,-2l-3,0a2,2 0 0 0 -2,2l0,3a2,2 0 0 0 \
2,2l3,0a1,1 0 0 0 0,-2l-2,0a1,1 0 0 1 -1,-1l0,-1a1,1 0 0 1 1,-1l2,0zm8,0a1,1 0 0 0 0,-2l-3,0a2,2 0 0 0 -2,2l0\
,3a2,2 0 0 0 2,2l3,0a1,1 0 0 0 0,-2l-2,0a1,1 0 0 1 -1,-1l0,-1a1,1 0 0 1 1,-1l2,0z"/></svg>`,
oldDisableIcon:`
<svg width="22" height="28" viewBox="0 0 22 32" xmlns="http://www.w3.org/2000/svg">
<path id="svg_1" fill-rule="evenodd" fill="#99a2aa" d="m15.172,21.87103l-11.172,0a2,2 0 0 1 -2,-2l0,-10c0,\
-0.34 0.084,-0.658 0.233,-0.938l-0.425,-0.426a1,1 0 1 1 1.414,-1.414l15.556,15.556a1,1 0 0 1 -1.414,1.414l-2.192,\
-2.192zm-10.21,-10.21c-0.577,0.351 -0.962,0.986 -0.962,1.71l0,3a2,2 0 0 0 2,2l3,0a1,1 0 0 0 0,-2l-2,0a1,1 0 0 1 -1,\
-1l0,-1a1,1 0 0 1 0.713,-0.958l-1.751,-1.752zm1.866,-3.79l11.172,0a2,2 0 0 1 2,2l0,10c0,0.34 -0.084,0.658 -0.233,\
0.938l-2.48,-2.48a1,1 0 0 0 -0.287,-1.958l-1.672,0l-1.328,-1.328l0,-0.672a1,1 0 0 1 1,-1l2,0a1,1 0 0 0 0,-2l-3,\
0a2,2 0 0 0 -1.977,1.695l-5.195,-5.195z"/></svg>
`,
downloadPanel:`
<div style="left: 50%;top: 50%;position: absolute;padding: 20px;background:\
white;border-radius: 8px;margin: auto;transform: translate(-50%,-50%);">
<h2 style="font-size: 20px;color: #4fc1e9;font-weight: 400;margin-bottom: 10px;">字幕下载</h2>
<a href="http://greasyfork.icu/scripts/378513" target="_blank" style="position: absolute;\
right: 20px;top:30px">当前版本：${typeof(GM_info)!="undefined"&&GM_info.script.version||'unknow'}</a>
<textarea id="subtitle-download-area" style="width:350px;height: 320px;rsize:both;" readonly></textarea>
<div style="line-height: 30px;">
<input id="subtitle-download-ASS" type="radio" name="subtitle-type" value="ASS" style="cursor:pointer">
<label for="subtitle-download-ASS" style="cursor:pointer">ASS</label>
<input id="subtitle-download-SRT" type="radio" name="subtitle-type" value="SRT" style="cursor:pointer">
<label for="subtitle-download-SRT" style="cursor:pointer">SRT</label>
<input id="subtitle-download-LRC" type="radio" name="subtitle-type" value="LRC" style="cursor:pointer">
<label for="subtitle-download-LRC" style="cursor:pointer">LRC</label>
<a id="subtitle-download-action" style="padding: 5px 10px;background:#4fc1e9;color:white;border-radius:5px;\
margin-left: 10px;">下载</a>
<a id="subtitle-download-close" style="padding: 5px 10px;background:#4fc1e9;color:white;border-radius:5px;\
cursor:pointer;margin-left: 10px;">关闭</a></div></div>`,
shadowStyle:{
"0":'',
"1":`text-shadow: #000 1px 0px 1px, #000 0px 1px 1px, #000 0px -1px 1px,#000 -1px 0px 1px;`,
"2":`text-shadow: #000 0px 0px 1px, #000 0px 0px 1px, #000 0px 0px 1px;`,
"3":`text-shadow: #000 1px 1px 2px, #000 0px 0px 1px;`
},
assHead:`\
[Script Info]
Title: ${document.title}
ScriptType: v4.00+
Collisions: Reverse
PlayResX: 1280
PlayResY: 720
WrapStyle: 3
ScaledBorderAndShadow: yes
; ----------------------
; 本字幕由CC字幕助手自动转换
; 字幕来源${document.location}
; 脚本地址http://greasyfork.icu/scripts/378513
; 设置了字幕过长自动换行，但若字幕中没有空格换行将无效
; 字体大小依据720p 48号字体等比缩放
; 如显示不正常请尝试使用SRT格式
[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, \
StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
Style: Default,Segoe UI,48,&H00FFFFFF,&HF0000000,&H00000000,&HF0000000,1,0,0,0,100,100,0,0.00,1,1,3,2,30,30,20,1
[Events]
Format: Layer, Start, End, Style, Actor, MarginL, MarginR, MarginV, Effect, Text
`
};
//编码器，用于将B站BCC字幕编码为常见字幕格式下载
class Encoder{
constructor(data){
if(!data||!data.body instanceof Array){
throw '数据错误';
}
this.data = data.body;
this.type = undefined;
this.showDialog();
}
showDialog(){
const settingDiv = document.createElement('div');
settingDiv.style = 'position: fixed;top: 0;bottom: 0;left: 0;right: 0;background: rgba(0,0,0,0.4);z-index: 1048576;';
settingDiv.innerHTML = elements.downloadPanel;
this.actionButton = settingDiv.querySelector('#subtitle-download-action');
this.textArea = settingDiv.querySelector('#subtitle-download-area');
settingDiv.querySelector('#subtitle-download-close').onclick = ()=>{
document.body.removeChild(settingDiv);
};
settingDiv.querySelector('#subtitle-download-SRT').onchange = ()=>{
this.encodeToSRT();
};
settingDiv.querySelector('#subtitle-download-LRC').onchange = ()=>{
this.encodeToLRC();
};
settingDiv.querySelector('#subtitle-download-ASS').onchange = ()=>{
this.encodeToASS();
};
document.body.appendChild(settingDiv);
}
updateDownload(result,type){
this.textArea.value = result;
URL.revokeObjectURL(this.actionButton.href);
this.actionButton.href = URL.createObjectURL(new Blob([result]));
this.actionButton.download = `${document.title}.${type}`;
}
encodeToLRC(){
this.updateDownload(this.data.map(({from,to,content})=>{
return `${this.encodeTime(from,'LRC')} ${content.replace(/\n/g,' ')}`;
}).join('\r\n'),'lrc');
}
encodeToSRT(){
this.updateDownload(this.data.reduce((accumulator,{from,to,content},index)=>{
return `${accumulator}${index+1}\r\n${this.encodeTime(from)} --> ${this.encodeTime(to)}\r\n${content}\r\n\r\n`;
},''),'srt');
}
encodeToASS(){
this.updateDownload(elements.assHead + this.data.map(({from,to,content})=>{
return `Dialogue: 0,${this.encodeTime(from,'ASS')},${this.encodeTime(to,'ASS')},*Default,NTP,0000,0000,0000,,${content.replace(/\n/g,'\\N')}`;
}).join('\r\n'),'ass');
}
encodeTime(input,format='SRT'){
let time = new Date(input*1000),
ms = time.getMilliseconds(),
second = time.getSeconds(),
minute = time.getMinutes(),
hour = Math.floor(input/60/60);
if (format=='SRT'){
if (hour<10) hour = '0'+hour;
if (minute<10) minute = '0'+minute;
if (second<10) second = '0'+second;
if (ms<10) ms = '00'+ms;
else if (ms<100) ms = '0'+ms;
return `${hour}:${minute}:${second},${ms}`;
}
else if(format=='ASS'){
ms = (ms/10).toFixed(0);
if (minute<10) minute = '0'+minute;
if (second<10) second = '0'+second;
if (ms<10) ms = '0'+ms;
return `${hour}:${minute}:${second}.${ms}`;
}
else{
ms = (ms/10).toFixed(0);
minute += hour*60;
if (minute<10) minute = '0'+minute;
if (second<10) second = '0'+second;
if (ms<10) ms = '0'+ms;
return `[${minute}:${second}.${ms}]`;
}
}
};
//解码器，用于读取常见格式字幕并将其转换为B站可以读取BCC格式字幕
const decoder = {
srtReg:/(\d+):(\d{1,2}):(\d{1,2}),(\d{1,3})\s*-->\s*(\d+):(\d{1,2}):(\d{1,2}),(\d{1,3})\r?\n([.\s\S]+)/,
assReg:/Dialogue:.*,(\d+):(\d{1,2}):(\d{1,2}\.?\d*),\s*?(\d+):(\d{1,2}):(\d{1,2}\.?\d*)(?:.*?,){7}(.+)/,
selectFile(){
const fileSelector = document.createElement('input')
fileSelector.type = 'file';
fileSelector.accept = '.lrc,.ass,.srt';
fileSelector.oninput = ()=>{
this.readFile(fileSelector.files&&fileSelector.files[0]);
};
fileSelector.click();
},
readFile(file){
if(!file) {
bilibiliCCHelper.toast('文件获取失败');
return;
}
const reader = new FileReader();
reader.onloadend = ()=> {
try{
let data,name = file.name.toLowerCase();
if(name.endsWith('.lrc')) data = this.decodeFromLRC(reader.result);
else if(name.endsWith('.ass')) data = this.decodeFromASS(reader.result);
else if(name.endsWith('.srt')) data = this.decodeFromSRT(reader.result);
console.log(data);
player.updateSubtitle(data);
bilibiliCCHelper.toast(`载入本地字幕:${file.name}`);
}
catch(e){
bilibiliCCHelper.toast('载入字幕失败',e);
};
};
reader.onerror = e=>{
bilibiliCCHelper.toast('载入字幕失败',e);
}
reader.readAsText(file);
},
decodeFromLRC(input){
if(!input) return;
const data = [];
input.split('\n').forEach(line=>{
const match = line.match(/((\[\d+:\d+\.?\d*\])+)(.*)/);
if (!match||match[3].trim().replace('\r','')=='') {
//console.log('跳过非正文行',line);
return;
}
const times = match[1].match(/\d+:\d+\.?\d*/g);
times.forEach(time=>{
const t = time.split(':');
data.push({
time:t[0]*60 + (+t[1]),
content:match[3]
});
});
});
return {
body:data.sort((a,b)=>a.time-b.time).map(({time,content},index)=>({
from:time,
to:index==data.length-1?time+20:data[index+1].time,
content:content
}))
};
},
decodeFromSRT(input){
if(!input) return;
const data = [];
let split = input.split('\n\n');
if(split.length==1) split = input.split('\r\n\r\n');
split.forEach(item=>{
const match = item.match(this.srtReg);
if (!match){
//console.log('跳过非正文行',item);
return;
}
data.push({
from:match[1]*60*60 + match[2]*60 + (+match[3]) + (match[4]/1000),
to:match[5]*60*60 + match[5]*60 + (+match[7]) + (match[8]/1000),
content:match[9].trim().replace(/{\\.+?}/g,'').replace(/\\N/gi,'\n').replace(/\\h/g,' ')
});
});
return {body:data.sort((a,b)=>a.from-b.from)};
},
decodeFromASS(input){
if(!input) return;
const data = [];
let split = input.split('\n');
split.forEach(line=>{
const match = line.match(this.assReg);
if (!match){
//console.log('跳过非正文行',line);
return;
}
data.push({
from:match[1]*60*60 + match[2]*60 + (+match[3]),
to:match[4]*60*60 + match[5]*60 + (+match[6]),
content:match[7].trim().replace(/{\\.+?}/g,'').replace(/\\N/gi,'\n').replace(/\\h/g,' ')
});
});
return {body:data.sort((a,b)=>a.from-b.from)};
}
};
//旧版播放器CC字幕助手，需要维护整个设置面板和字幕逻辑
const oldPlayerHelper = {
setting:undefined,
subtitle:undefined,
selectedLan:undefined,
resizeRate: 100,
languagesCount:0,
saveSetting(){
try{
const playerSetting = JSON.parse(localStorage.bilibili_player_settings);
playerSetting.subtitle = this.setting;
localStorage.bilibili_player_settings = JSON.stringify(playerSetting);
}catch(e){
bilibiliCCHelper.toast('保存字幕设置错误',e);
}
},
changeStyle(){
this.fontStyle.innerHTML = `
span.subtitle-item-background{
opacity: ${this.setting.backgroundopacity};
}
span.subtitle-item-text {
color:#${("000000"+this.setting.color.toString(16)).slice(-6)};
}
span.subtitle-item {
font-size: ${this.setting.fontsize*this.resizeRate}%;
line-height: ${this.setting.fontsize*this.resizeRate*1.1}%;
${elements.shadowStyle[this.setting.shadow]}
}`;
},
changePosition(){
this.subtitleContainer.className = 'subtitle-position subtitle-position-'
+(this.setting.position||'bc');
this.subtitleContainer.style = '';
},
changeResizeStatus(state){
if(state){
this.changeResize();
}else{
this.resizeRate = 100;
this.changeStyle();
}
},
changeResize(state){
if (this.setting.scale) {
this.resizeRate = player.getWidth()/1280*100;
this.changeStyle();
}
},
changeSubtitle(value = this.languages[0].value){
if(value=='close'){
if(this.selectedLan&&this.selectedLan!='close') {
bilibiliCCHelper.loadSubtitle('close');
this.setting.isclosed = true;
}
this.downloadBtn.disabled = true;
this.languages[this.languagesCount-1].selected = true;
this.icon.innerHTML = elements.oldDisableIcon;
}
else{
this.setting.isclosed = false;
[].find.call(this.languages,(item=>item.value==value))
.selected = true;
this.icon.innerHTML = elements.oldEnableIcon;
this.selectedLan = value;
if(value=='local') {
decoder.selectFile();
this.downloadBtn.disabled = true;
}
else {
bilibiliCCHelper.loadSubtitle(value);
this.downloadBtn.disabled = false;
}
}
},
toggleSubtitle(){
if(!this.setting.isclosed){
this.changeSubtitle('close');
}else{
this.changeSubtitle(this.selectedLan);
}
},
initSubtitle(){
if(this.setting.isclosed) {
this.changeSubtitle('close');
}
else{
this.changeSubtitle(this.selectedLan);
}
this.changeStyle();
this.changeResize();
},
initUI(){
const preBtn = bilibiliCCHelper.get('.bilibili-player-video-btn-quality');
if(!preBtn) throw('没有找到视频清晰度按钮');
preBtn.insertAdjacentHTML('afterEnd',elements.oldUIElement);
const [
subtitleContainer,
icon,
panel,
fontStyle,
languageSelector,
btn,
fontsize,
scale,
upload,
downloadBtn,
color,
shadow,
position,
opacity] = bilibiliCCHelper.get([
'.bilibili-player-video-subtitle>div',
'#subtitle-icon',
'#subtitle-setting-panel',
'#subtitle-font-setting-style',
'#subtitle-language',
'#bilibili-player-subtitle-btn',
'#subtitle-font-size',
'#subtitle-auto-resize',
'#subtitle-upload',
'#subtitle-download',
'#subtitle-color',
'#subtitle-shadow',
'#subtitle-position',
'#subtitle-background-opacity'
]);
const languages = this.languages = languageSelector.options;
this.subtitleContainer = subtitleContainer;
this.icon = icon;
this.panel = panel;
this.fontStyle = fontStyle;
this.languageSelector = languageSelector;
this.downloadBtn = downloadBtn;
//按钮
if(this.setting.isclosed){
icon.innerHTML = elements.oldDisableIcon;
}else{
icon.innerHTML = elements.oldEnableIcon;
}
btn.addEventListener('click',(e)=>{
if(!this.panel.contains(e.target)) this.toggleSubtitle();
});
//字幕语言
languages.length = this.languagesCount+1;
for(let i=0;i<languages.length-2;i++){
languages[i].text = this.subtitle.subtitles[i].lan_doc;
languages[i].value = this.subtitle.subtitles[i].lan;
}
languages[languages.length-1].text = '本地字幕';
languages[languages.length-1].value = 'local';
languages[languages.length-2].text = '关闭';
languages[languages.length-2].value = 'close';
languageSelector.addEventListener('change',(e)=>{
this.changeSubtitle(e.target.value);
});
//下载字幕
downloadBtn.addEventListener('click',()=>{
if(this.selectedLan=='closed') return;
bilibiliCCHelper.getSubtitle(this.selectedLan).then(data=>{
new Encoder(data);
}).catch(e=>{
bilibiliCCHelper.toast('获取字幕失败',e);
});
});
//上传字幕
if( this.subtitle.allow_submit){
upload.addEventListener('click',()=>{
open(`https://member.bilibili.com/v2#/zimu/my-zimu/zimu-editor?aid=${window.aid}&cid=${window.cid}`,'blank');
});
}
else{
upload.title = '本视频无法添加字幕，可能原因是:\r\n·UP主未允许观众投稿字幕\r\n·您未达到UP主设置的投稿字幕条件';
upload.disabled = true;
}
//字体大小
fontsize.value = this.setting.fontsize==0.6?
0:this.setting.fontsize==0.8?
25:this.setting.fontsize==1.3?
75:this.setting.fontsize==1.6?
100:50;
fontsize.addEventListener('input',(e)=>{
const v = e.target.value/25;
this.setting.fontsize = v>2?(v-2)*0.3+1:v*0.2+0.6;
this.changeStyle();
});
//自动缩放
scale.checked = true;
scale.addEventListener('change',(e)=>{
this.changeResizeStatus(this.setting.scale = e.target.checked);
});
//字幕颜色
color.addEventListener('click',(e)=>{
this.changeStyle(this.setting.color = parseInt(e.target.dataset.value));
});
//字幕阴影
[].forEach.call(shadow.options,item=>{
if(item.value==this.setting.shadow) item.selected = true;
});
shadow.addEventListener('change',(e)=>{
this.changeStyle(this.setting.shadow = e.target.value);
});
//字幕位置
[].forEach.call(position.options,item=>{
if(item.value==this.setting.position) item.selected = true;
});
position.addEventListener('change',(e)=>{
this.changePosition(this.setting.position = e.target.value);
});
//背景透明度
opacity.value = this.setting.backgroundopacity*100;
opacity.addEventListener('input',(e)=>{
this.changeStyle(this.setting.backgroundopacity = e.target.value/100);
});
//播放器缩放
player.addEventListener('video_resize', (event) => {
this.changeResize(event);
});
//退出页面保存配置
window.addEventListener("beforeunload", (event) => {
this.saveSetting();
});
//初始化字幕
this.initSubtitle();
console.log('init cc helper button done');
},
init(subtitle){
this.subtitle = subtitle;
this.languagesCount = subtitle.subtitles&&subtitle.subtitles.length+1;
this.setting = JSON.parse(localStorage.bilibili_player_settings).subtitle;
if(!this.setting) throw('获取设置失败');
this.initUI();
}
};//oldPlayerHelper END
//新版播放器CC字幕助手，需要维护下载按钮/本地字幕选项/关闭选项/需要时监听CC字幕按钮
const newPlayerHelper = {
iconBtn:undefined,
panel:undefined,
downloadBtn:undefined,
selectedLan:undefined,
selectedLocal:false,
hasSubtitles:false,
updateDownloadBtn(value='closed'){
this.selectedLan = value;
if(value=='close'){
this.downloadBtn.style['pointer-events'] = 'none';
this.downloadBtn.classList.add('bui-button-disabled');
}
else{
this.selectedLocal = false;
this.downloadBtn.style['pointer-events'] = 'all';
this.downloadBtn.classList.remove('bui-button-disabled');
}
},
initUI(){
const downloadBtn = this.downloadBtn = this.panel.nextElementSibling.cloneNode(),
selector = this.panel.querySelector('ul'),
nowSelect = selector.querySelector('li.bui-select-item.bui-select-item-active'),
closeItem = selector.querySelector('li.bui-select-item.bui-select-item-active'),
localItem = closeItem.cloneNode();
downloadBtn.style = 'min-width:unset!important'
downloadBtn.innerText = '下载';
downloadBtn.addEventListener('click',()=>{
if(this.selectedLan=='close') return;
bilibiliCCHelper.getSubtitle(this.selectedLan).then(data=>{
new Encoder(data);
}).catch(e=>{
bilibiliCCHelper.toast('获取字幕失败',e);
});
});
this.updateDownloadBtn(nowSelect&&nowSelect.dataset.value);
this.panel.insertAdjacentElement('afterend',downloadBtn);
//本地字幕
localItem.innerText = '本地字幕';
localItem.addEventListener('click',()=>{
this.selectedLocal = true;
decoder.selectFile();
});
selector.appendChild(localItem);
//选中本地字幕后关闭需要手动执行
closeItem.addEventListener('click',()=>{
if(!this.selectedLocal) return;
this.selectedLocal = false;
bilibiliCCHelper.loadSubtitle('close');
});
//视频本身没有字幕时，点击CC字幕按钮切换本地字幕和关闭
//视频本身有字幕时播放器自身会切换到视频自身字幕
if(!this.hasSubtitles){
const icon = this.iconBtn.querySelector('.bilibili-player-iconfont-subtitle');
icon&&icon.addEventListener('click',({target})=>{
if(!this.selectedLocal) localItem.click();
else closeItem.click();
});
}
new MutationObserver((mutations,observer)=>{
mutations.forEach(mutation=>{
if(!mutation.target||mutation.type!='attributes') return;
if(mutation.target.classList.contains('bui-select-item-active')&&mutation.target.dataset.value){
this.updateDownloadBtn(mutation.target.dataset.value);
}
});
}).observe(selector,{
subtree: true,
attributes: true,
attributeOldValue: true ,
attributeFilter: ['class']
});
console.log('Bilibili CC Helper init new UI success.');
},
init(subtitle){
this.hasSubtitles = subtitle.subtitles && subtitle.subtitles.length;
this.selectedLocal = undefined;
this.selectedLan = undefined;
[this.iconBtn,this.panel] = bilibiliCCHelper.get(['.bilibili-player-video-btn-subtitle','.bilibili-player-video-subtitle-setting-lan']);
if(this.panel){
this.initUI();
}
else if(this.iconBtn){
//强制显示新版播放器CC字幕按钮，不管视频有没有字幕，反正可以选择本地字幕
this.iconBtn.style = 'display:block';
new MutationObserver((mutations,observer)=>{
mutations.forEach(mutation=>{
if(!mutation.target) return;
if(mutation.target.classList.contains('bilibili-player-video-subtitle-setting-lan')){
observer.disconnect();
this.panel = mutation.target;
this.initUI();
}
});
}).observe(this.iconBtn,{
childList: true,
subtree: true
});
}
else{
throw('找不到新播放器按钮');
}
},
};//newPlayerHelper END
//启动器
const bilibiliCCHelper = {
subtitle:undefined,
datas:undefined,
isOldPlayer:undefined,
get(selectors){
//数组递归，可一次查询一个列表页面元素
if(selectors instanceof Array) {
return selectors.map(selector=>this.get(selector));
}
return document.body.querySelector(selectors);
},
toast(msg,error){
if(error) console.error(error);
if(!this.toastDiv){
this.toastDiv = document.createElement('div');
this.toastDiv.className = 'bilibili-player-video-toast-item';
}
const panel = this.get('.bilibili-player-video-toast-top');
if(!panel) return;
clearTimeout(this.removeTimmer);
this.toastDiv.innerText = msg + (error?`:${error}`:'');
panel.appendChild(this.toastDiv);
this.removeTimmer = setTimeout(()=>panel.removeChild(this.toastDiv),3000);
},
loadSubtitle(lan){
this.getSubtitle(lan).then(data=>{
player.updateSubtitle(data);
this.toast(lan=='close'?
'字幕已关闭':
`载入字幕:${this.subtitle.subtitles.find(item=>item.lan==lan).lan_doc}`);
}).catch(e=>{
this.toast('载入字幕失败',e);
});
},
async getSubtitle(lan){
if(this.datas[lan]) return this.datas[lan];
const item = this.subtitle.subtitles.find(item=>item.lan==lan);
if(!item) throw('找不到所选语言字幕'+lan);
return fetch(item.subtitle_url)
.then(res=>res.json())
.then(data=>(this.datas[lan] = data));
},
setupData(data){
this.datas = {
close:{
body:[]
}
};
fetch(`//api.bilibili.com/x/player.so?id=cid:${window.cid}&aid=${window.aid}`)
.then(res=>res.text()).then(data=>{
const match = data.match(/(?:<subtitle>)(.+)(?:<\/subtitle>)/);
this.subtitle = match&&JSON.parse(match[1]);
if(this.isOldPlayer){
oldPlayerHelper.init(this.subtitle);
}else{
newPlayerHelper.init(this.subtitle);
}
}).catch(e=>{
this.toast('CC字幕助手配置失败',e);
});
},
observerNew(){
new MutationObserver((mutations, observer)=>{
mutations.forEach(mutation=>{
if(!mutation.target) return;
if(mutation.target.getAttribute('stage')==1){
this.setupData();
}
});
}).observe(this.get('#bofqi'),{
childList: true,
subtree: true,
});
},
tryInit(){
if(this.get('#entryNew')){
this.isOldPlayer = true;
this.setupData();
return true;
}
else if(this.get('.bilibili-player-video-danmaku-setting')){
this.isOldPlayer = false;
this.setupData();
this.observerNew();
return true;
}
},
init(){
if(this.tryInit()) return;
let i=0;
new MutationObserver((mutations, observer)=>{
if(i++>200) {
observer.disconnect();
if(!this.tryInit()) {
this.toast('CC字幕助手似乎没有初始化成功，页面定义可能更改了，取消初始化');
}
}
mutations.forEach(mutation=>{
if(!mutation.target) return;
if(mutation.target.getAttribute('stage')==1){
observer.disconnect();
this.tryInit();
}
});
}).observe(document.body,{
childList: true,
subtree: true,
});
}
};
bilibiliCCHelper.init();
})();