在B站播放器中集成CC字幕列表
目前為
// ==UserScript==
// @name Bilibili CC字幕实时显示插件
// @name:en Bilibili CC Subtitle Extractor
// @namespace http://tampermonkey.net/
// @version 1.0.2
// @description 在B站播放器中集成CC字幕列表
// @description:en Integrate CC subtitle list in Bilibili video player
// @author Zane
// @match *://*.bilibili.com/video/*
// @grant none
// @license MIT
// ==/UserScript==
(function() {
'use strict';
// 字幕获取模块
const SubtitleFetcher = {
// 获取视频信息
async getVideoInfo() {
console.log('Getting video info...');
const info = {
aid: window.aid || window.__INITIAL_STATE__?.aid,
bvid: window.bvid || window.__INITIAL_STATE__?.bvid,
cid: window.cid
};
if (!info.cid) {
const state = window.__INITIAL_STATE__;
info.cid = state?.videoData?.cid || state?.epInfo?.cid;
}
if (!info.cid && window.player) {
try {
const playerInfo = window.player.getVideoInfo();
info.cid = playerInfo.cid;
info.aid = playerInfo.aid;
info.bvid = playerInfo.bvid;
} catch (e) {
console.log('Failed to get info from player:', e);
}
}
console.log('Video info:', info);
return info;
},
// 获取字幕配置
async getSubtitleConfig(info) {
console.log('Getting subtitle config...');
const apis = [
`//api.bilibili.com/x/player/v2?cid=${info.cid}&bvid=${info.bvid}`,
`//api.bilibili.com/x/v2/dm/view?aid=${info.aid}&oid=${info.cid}&type=1`,
`//api.bilibili.com/x/player/wbi/v2?cid=${info.cid}`
];
for (const api of apis) {
try {
console.log('Trying API:', api);
const res = await fetch(api);
const data = await res.json();
console.log('API response:', data);
if (data.code === 0 && data.data?.subtitle?.subtitles?.length > 0) {
return data.data.subtitle;
}
} catch (e) {
console.log('API failed:', e);
}
}
return null;
},
// 获取字幕内容
async getSubtitleContent(subtitleUrl) {
console.log('Getting subtitle content from:', subtitleUrl);
try {
const url = subtitleUrl.replace(/^http:/, 'https:');
console.log('Using HTTPS URL:', url);
const res = await fetch(url);
const data = await res.json();
console.log('Subtitle content:', data);
return data;
} catch (e) {
console.error('Failed to get subtitle content:', e);
return null;
}
}
};
// 时间格式化模块
const TimeFormatter = {
formatTime(seconds) {
const mm = String(Math.floor(seconds/60)).padStart(2,'0');
const ss = String(Math.floor(seconds%60)).padStart(2,'0');
return `${mm}:${ss}`;
},
// 如果需要其他格式的时间显示，可以添加更多方法
formatTimeWithMs(seconds) {
const date = new Date(seconds * 1000);
const mm = String(Math.floor(seconds/60)).padStart(2,'0');
const ss = String(Math.floor(seconds%60)).padStart(2,'0');
const ms = String(date.getMilliseconds()).slice(0,3).padStart(3,'0');
return `${mm}:${ss},${ms}`;
}
};
// UI渲染模块更新
const SubtitleUI = {
injectStyles() {
const style = document.createElement('style');
style.textContent = `
.subtitle-container {
font-family: "PingFang SC", HarmonyOS_Regular, "Helvetica Neue", "Microsoft YaHei", sans-serif;
font-size: 12px;
-webkit-font-smoothing: antialiased;
color: rgb(24, 25, 28);
margin-top: 12px;
}
.subtitle-container * {
scrollbar-width: thin;
scrollbar-color: #99a2aa #fff;
}
.subtitle-container *::-webkit-scrollbar {
width: 4px;
}
.subtitle-container *::-webkit-scrollbar-track {
background: transparent;
}
.subtitle-container *::-webkit-scrollbar-thumb {
background-color: #99a2aa;
border-radius: 2px;
}
.subtitle-header {
display: flex;
align-items: center;
background-color: rgb(241, 242, 243);
height: 44px;
padding: 0 12px;
border-radius: 6px;
cursor: pointer;
user-select: none;
position: relative;
}
.subtitle-content {
background: var(--bg1, #fff);
height: 0;
overflow: hidden;
transition: all 0.3s;
}
.subtitle-function {
display: flex;
align-items: center;
height: 36px;
padding: 0 12px;
border-bottom: 1px solid var(--border, #e3e5e7);
}
.subtitle-function-btn {
display: flex;
align-items: center;
cursor: pointer;
color: #999;
}
.subtitle-function-btn:first-child {
width: 60px;
}
.subtitle-function-btn:last-child {
margin-left: 12px;
}
.subtitle-wrap {
height: 393px;
overflow-y: auto;
overscroll-behavior: contain;
}
.subtitle-item {
display: flex;
align-items: center;
padding: 0 12px;
height: 24px;
transition: background-color 0.3s;
cursor: pointer;
}
.subtitle-item:hover {
background: var(--bg2, #f1f2f3);
}
.subtitle-item.active {
background: var(--bg2, #f1f2f3);
color: var(--brand_blue, #00a1d6);
}
.subtitle-time {
width: 60px;
color: #999;
flex-shrink: 0;
}
.subtitle-text {
flex: 1;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
margin: 0 12px;
}
.arrow-icon {
margin-right: 8px;
transition: transform 0.3s;
}
.arrow-icon.expanded {
transform: rotate(90deg);
}
.bui-collapse-wrap {
width: 350px;
}
`;
document.head.appendChild(style);
},
createSubtitleUI() {
const container = document.createElement('div');
container.className = 'subtitle-container';
// 头部
const header = document.createElement('div');
header.className = 'subtitle-header';
header.innerHTML = `
<div class="arrow-icon">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16">
<path d="m9.188 7.999-3.359 3.359a.75.75 0 1 0 1.061 1.061l3.889-3.889a.75.75 0 0 0 0-1.061L6.89 3.58a.75.75 0 1 0-1.061 1.061l3.359 3.358z"/>
</svg>
</div>
<span>字幕列表</span>
`;
// 内容区
const content = document.createElement('div');
content.className = 'subtitle-content';
const function_bar = document.createElement('div');
function_bar.className = 'subtitle-function';
function_bar.innerHTML = `
<div class="subtitle-function-btn">
<span>时间</span>
</div>
<div class="subtitle-function-btn">
<span>字幕内容</span>
</div>
`;
const wrap = document.createElement('div');
wrap.className = 'subtitle-wrap';
// 添加滚轮事件处理
wrap.addEventListener('wheel', (e) => {
// 阻止事件冒泡和默认行为
e.stopPropagation();
e.preventDefault();
// 手动处理滚动
wrap.scrollTop += e.deltaY;
}, { passive: false });
content.appendChild(function_bar);
content.appendChild(wrap);
container.appendChild(header);
container.appendChild(content);
return { container, header, content: wrap };
}
};
// 字幕同步模块更新
const SubtitleSync = {
isVideoPlaying: true, // 视频播放状态
lastManualScrollTime: 0, // 最后一次手动滚动时间
displaySubtitles(subtitles, container) {
const subtitleHtml = subtitles.body.map((item, index) => `
<div class="subtitle-item" data-index="${index}">
<span class="subtitle-time">${TimeFormatter.formatTime(item.from)}</span>
<span class="subtitle-text">${item.content}</span>
</div>
`).join('');
container.innerHTML = subtitleHtml;
// 添加点击事件
container.querySelectorAll('.subtitle-item').forEach(item => {
item.addEventListener('click', () => {
const index = parseInt(item.dataset.index);
const subtitle = subtitles.body[index];
if (window.player && subtitle) {
window.player.seek(subtitle.from);
}
});
});
// 添加滚动监听
container.addEventListener('scroll', () => {
this.lastManualScrollTime = Date.now();
});
// 监听视频播放状态
if (window.player) {
const observer = new MutationObserver(() => {
const video = document.querySelector('video');
if (video) {
this.isVideoPlaying = !video.paused;
}
});
observer.observe(document.querySelector('.bpx-player-container'), {
subtree: true,
attributes: true
});
}
},
// 计算元素在容器中的相对位置
getRelativePosition(element, container) {
const containerRect = container.getBoundingClientRect();
const elementRect = element.getBoundingClientRect();
return {
top: elementRect.top - containerRect.top,
bottom: elementRect.bottom - containerRect.top
};
},
// 检查元素是否在容器的可视区域内
isElementInViewport(element, container) {
const pos = this.getRelativePosition(element, container);
const containerHeight = container.clientHeight;
// 考虑一定的缓冲区域
const buffer = 50;
return pos.top >= -buffer && pos.bottom <= containerHeight + buffer;
},
// 平滑滚动到指定元素
smoothScrollToElement(element, container) {
const pos = this.getRelativePosition(element, container);
const containerHeight = container.clientHeight;
const targetScroll = container.scrollTop + pos.top - containerHeight / 2;
container.scrollTo({
top: targetScroll,
behavior: 'smooth'
});
},
highlightCurrentSubtitle(subtitles, container) {
const currentTime = window.player?.getCurrentTime() || 0;
container.querySelectorAll('.subtitle-item').forEach(item => {
item.classList.remove('active');
});
const currentSubtitle = subtitles.body.find(item =>
currentTime >= item.from && currentTime <= item.to
);
if (currentSubtitle) {
const index = subtitles.body.indexOf(currentSubtitle);
const currentElement = container.querySelector(`.subtitle-item[data-index="${index}"]`);
if (currentElement) {
currentElement.classList.add('active');
// 只在视频播放时且距离上次手动滚动超过2秒时自动滚动
if (this.isVideoPlaying && Date.now() - this.lastManualScrollTime > 2000) {
// 检查当前字幕是否在可视区域内
if (!this.isElementInViewport(currentElement, container)) {
this.smoothScrollToElement(currentElement, container);
}
}
}
}
}
};
// 主函数更新
async function main() {
// 等待弹幕列表容器加载
const danmakuContainer = await new Promise(resolve => {
const check = () => {
const container = document.querySelector('.bui-collapse-wrap');
if (container) {
resolve(container);
} else {
setTimeout(check, 1000);
}
};
check();
});
// 注入样式
SubtitleUI.injectStyles();
// 创建UI
const { container, header, content } = SubtitleUI.createSubtitleUI();
danmakuContainer.appendChild(container);
// 切换展开/收起
let isExpanded = false;
header.addEventListener('click', () => {
isExpanded = !isExpanded;
container.querySelector('.subtitle-content').style.height =
isExpanded ? '429px' : '0'; // 36px(功能栏) + 393px(内容区)
header.querySelector('.arrow-icon').classList.toggle('expanded', isExpanded);
});
// 加载字幕
try {
const videoInfo = await SubtitleFetcher.getVideoInfo();
if (!videoInfo.cid) {
throw new Error('无法获取视频信息');
}
const subtitleConfig = await SubtitleFetcher.getSubtitleConfig(videoInfo);
if (!subtitleConfig) {
throw new Error('该视频没有CC字幕');
}
const subtitles = await SubtitleFetcher.getSubtitleContent(subtitleConfig.subtitles[0].subtitle_url);
if (!subtitles) {
throw new Error('获取字幕内容失败');
}
// 显示字幕
SubtitleSync.displaySubtitles(subtitles, content);
// 启动字幕同步
setInterval(() => {
if (isExpanded) {
SubtitleSync.highlightCurrentSubtitle(subtitles, content);
}
}, 100);
} catch (error) {
console.error('Error:', error);
content.innerHTML = `<div class="subtitle-item">${error.message}</div>`;
}
}
// 等待页面加载完成后执行
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', main);
} else {
main();
}
})();