自动开启中文字幕，提供倍速控制功能（Z/X/C键），记忆用户选择
// ==UserScript==
// @name B站/哔哩哔哩/bilibili视频增强脚本-（中文字幕+倍速控制）
// @namespace http://tampermonkey.net/
// @version 2.0.2
// @description 自动开启中文字幕，提供倍速控制功能（Z/X/C键），记忆用户选择
// @author anyphasy
// @icon https://play-lh.googleusercontent.com/C1tISqYgtW_ejAmnGzvepbaYt7NJLagPelCZ_lzNv06RJPQgBx1_q3VX67z9wc48EgY=s1024
// @match *://www.bilibili.com/video/*
// @match *://www.bilibili.com/list/watchlater*
// @grant GM_setValue
// @grant GM_getValue
// @license EPL 1.0
// @grant GM_addStyle
// ==/UserScript==
(function() {
'use strict';
// 配置参数
const MAX_ATTEMPTS = 10;
const INITIAL_DELAY = 800;
const RETRY_DELAY = 2000;
let attemptCount = 0;
let isActive = false;
let isEnabled = GM_getValue('bilibili_subtitle_enabled', true);
let observer = null;
let timeoutId = null;
let playbackRates = [2, 1.5, 1.25, 1, 0.75, 0.5]; // 支持的倍速选项
let currentRate = GM_getValue('bilibili_playback_rate', 1); // 当前倍速
// 添加Element Plus样式
GM_addStyle(`
.bpx-player-dm-notice {
position: absolute;
top: 10%;
/* 将提示位置稍微下移，避免遮挡视频内容 */
left: 50%;
transform: translate(-50%, -50%);
background-color: rgba(0, 0, 0, 0.8);
/* 增加背景不透明度 */
color: white;
padding: 12px 20px;
/* 增加内边距，让提示更大 */
border-radius: 8px;
/* 增加圆角 */
font-size: 18px;
/* 增大字体大小 */
font-weight: bold;
/* 加粗字体 */
z-index: 9999;
pointer-events: none;
animation: fadeInOut 2.5s ease-in-out forwards;
/* 稍微延长动画时间 */
min-width: 120px;
/* 设置最小宽度 */
text-align: center;
/* 文字居中 */
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
/* 添加阴影效果 */
}
@keyframes fadeInOut {
0% { opacity: 0; }
10% { opacity: 1; }
90% { opacity: 1; }
100% { opacity: 0; }
}
`);
// 初始化
function init() {
console.log(`B站增强脚本已加载，字幕状态: ${isEnabled ? '开启' : '关闭'}, 当前倍速: ${currentRate}x`);
// 清理函数
const cleanup = () => {
if (timeoutId) {
clearTimeout(timeoutId);
timeoutId = null;
}
if (observer) {
observer.disconnect();
observer = null;
}
document.removeEventListener('keydown', handleKeyPress);
};
// 添加页面卸载时的清理
window.addEventListener('beforeunload', cleanup);
// 添加键盘监听器
document.addEventListener('keydown', handleKeyPress);
console.log('快捷键监听器已添加 (Shift+A:字幕, Z/X/C:倍速)');
// 设置SPA路由变化监听
setupSPAObserver();
// 立即开始尝试（减少延迟）
if (isEnabled) {
timeoutId = setTimeout(tryClickChineseSubtitle, INITIAL_DELAY);
}
// 设置倍速控制
timeoutId = setTimeout(applySavedPlaybackRate, INITIAL_DELAY);
}
// 设置SPA路由监听
function setupSPAObserver() {
let lastUrl = location.href;
observer = new MutationObserver(() => {
const currentUrl = location.href;
if (currentUrl !== lastUrl) {
lastUrl = currentUrl;
resetState();
if (isEnabled) {
timeoutId = setTimeout(tryClickChineseSubtitle, INITIAL_DELAY);
}
timeoutId = setTimeout(applySavedPlaybackRate, INITIAL_DELAY);
}
});
observer.observe(document, { subtree: true, childList: true });
}
// 重置状态
function resetState() {
if (timeoutId) {
clearTimeout(timeoutId);
timeoutId = null;
}
attemptCount = 0;
isActive = false;
}
// 快捷键处理
function handleKeyPress(event) {
// Shift+C 切换字幕
if (event.shiftKey && event.key === 'A') {
console.log("按下了Shift+A");
event.preventDefault();
toggleSubtitles();
}
// 倍速控制
if (!event.ctrlKey && !event.altKey && !event.metaKey) {
switch (event.key.toLowerCase()) {
case 'z':
console.log("按下了Z键 - 重置倍速");
event.preventDefault();
setPlaybackRate(1);
break;
case 'x':
console.log("按下了X键 - 减小倍速");
event.preventDefault();
decreasePlaybackRate();
break;
case 'c':
console.log("按下了C键 - 增加倍速");
event.preventDefault();
increasePlaybackRate();
break;
}
}
}
// 切换字幕开关
function toggleSubtitles() {
isEnabled = !isEnabled;
GM_setValue('bilibili_subtitle_enabled', isEnabled);
console.log(`字幕功能已${isEnabled ? '开启' : '关闭'}`);
resetState();
if (isEnabled) {
timeoutId = setTimeout(tryClickChineseSubtitle, INITIAL_DELAY);
} else {
closeSubtitles();
}
}
// 尝试点击中文字幕（优化版）
function tryClickChineseSubtitle() {
timeoutId = null;
if (!isEnabled || isActive || attemptCount >= MAX_ATTEMPTS) {
return;
}
attemptCount++;
console.log(`尝试点击中文字幕 (第 ${attemptCount} 次)`);
// 使用更高效的选择器
const subtitleItems = document.querySelectorAll('.bpx-player-ctrl-subtitle-language-item');
let foundChinese = false;
for (const item of subtitleItems) {
const textElement = item.querySelector('.bpx-player-ctrl-subtitle-language-item-text');
if (textElement && textElement.textContent.trim() === '中文') {
foundChinese = true;
console.log('找到中文字幕按钮');
if (!item.classList.contains('bpx-state-active')) {
console.log('中文字幕未激活，执行点击');
textElement.click();
// 使用更快的验证机制
timeoutId = setTimeout(() => verifyActivation(item), 300);
} else {
console.log('中文字幕已激活');
isActive = true;
}
break;
}
}
if (!foundChinese && attemptCount < MAX_ATTEMPTS) {
console.log('未找到中文字幕按钮，稍后重试');
timeoutId = setTimeout(tryClickChineseSubtitle, RETRY_DELAY);
} else if (!foundChinese) {
console.log(`已达到最大尝试次数(${MAX_ATTEMPTS})，可能此视频无中文字幕`);
}
}
// 验证激活状态
function verifyActivation(item) {
timeoutId = null;
if (item.classList.contains('bpx-state-active')) {
console.log('中文字幕激活成功');
isActive = true;
} else {
console.log('中文字幕激活失败');
if (attemptCount < MAX_ATTEMPTS) {
timeoutId = setTimeout(tryClickChineseSubtitle, RETRY_DELAY);
}
}
}
// 关闭字幕
function closeSubtitles() {
const closeButton = document.querySelector('.bpx-player-ctrl-subtitle-close-switch[data-action="close"]');
if (closeButton && !closeButton.classList.contains('bpx-state-active')) {
console.log('找到关闭字幕按钮，执行点击');
closeButton.click();
isActive = false;
} else {
console.log('关闭字幕按钮已激活或未找到');
}
}
// 倍速控制相关函数
function applySavedPlaybackRate() {
const rateMenu = document.querySelector('.bpx-player-ctrl-playbackrate-menu');
if (!rateMenu) {
if (attemptCount < MAX_ATTEMPTS) {
timeoutId = setTimeout(applySavedPlaybackRate, RETRY_DELAY);
attemptCount++;
return;
}
console.log('未找到倍速菜单');
return;
}
const currentActive = rateMenu.querySelector('.bpx-state-active');
if (currentActive) {
const activeRate = parseFloat(currentActive.dataset.value);
if (Math.abs(activeRate - currentRate) > 0.01) {
console.log(`当前倍速(${activeRate}x)与保存倍速(${currentRate}x)不一致，正在调整`);
setPlaybackRate(currentRate);
} else {
console.log(`当前倍速(${activeRate}x)与保存倍速一致，无需调整`);
}
} else {
console.log('未找到激活的倍速选项，尝试设置');
setPlaybackRate(currentRate);
}
}
function setPlaybackRate(rate) {
// 确保rate是支持的倍速
const supportedRate = playbackRates.find(r => Math.abs(r - rate) < 0.01) || 1;
currentRate = supportedRate;
GM_setValue('bilibili_playback_rate', currentRate);
const rateMenu = document.querySelector('.bpx-player-ctrl-playbackrate-menu');
if (rateMenu) {
const items = rateMenu.querySelectorAll('.bpx-player-ctrl-playbackrate-menu-item');
let found = false;
items.forEach(item => {
const itemRate = parseFloat(item.dataset.value);
if (Math.abs(itemRate - currentRate) < 0.01) {
found = true;
if (!item.classList.contains('bpx-state-active')) {
item.click();
console.log(`已设置倍速为 ${currentRate}x`);
showRateMessage(`倍速已设为 ${currentRate}x`);
}
}
});
if (!found) {
console.log(`未找到 ${currentRate}x 的倍速选项`);
}
} else {
console.log('未找到倍速菜单');
if (attemptCount < MAX_ATTEMPTS) {
timeoutId = setTimeout(() => setPlaybackRate(rate), RETRY_DELAY);
attemptCount++;
}
}
}
function increasePlaybackRate() {
const currentIndex = playbackRates.findIndex(r => Math.abs(r - currentRate) < 0.01);
if (currentIndex > 0) {
const newRate = playbackRates[currentIndex - 1];
setPlaybackRate(newRate);
} else {
showRateMessage('已经是最大倍速 (2x)');
console.log('已经是最大倍速 (2x)');
}
}
function decreasePlaybackRate() {
const currentIndex = playbackRates.findIndex(r => Math.abs(r - currentRate) < 0.01);
if (currentIndex < playbackRates.length - 1) {
const newRate = playbackRates[currentIndex + 1];
setPlaybackRate(newRate);
} else {
showRateMessage('已经是最小倍速 (0.5x)');
console.log('已经是最小倍速 (0.5x)');
}
}
function showRateMessage(message) {
// 移除旧的消息
const oldNotice = document.querySelector('.bpx-player-dm-notice');
if (oldNotice) oldNotice.remove();
// 创建新消息元素
const notice = document.createElement('div');
notice.className = 'bpx-player-dm-notice';
notice.textContent = message;
// 添加到播放器容器
const playerContainer = document.querySelector('.bpx-player-container') || document.body;
playerContainer.appendChild(notice);
// 2秒后自动移除
setTimeout(() => {
if (notice.parentNode) {
notice.parentNode.removeChild(notice);
}
}, 2000);
}
// 启动脚本
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', init);
} else {
init();
}
})();