chore: 支持背景音乐设置
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137
src/utils/musicPlayer.js
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137
src/utils/musicPlayer.js
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// src/utils/musicPlayer.js
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class MusicPlayer {
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constructor() {
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this.audio = null;
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this.isPlaying = false;
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this.defaultPath = "/assets/music/background.mp3";
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this.enabled = false;
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}
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/**
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* 适配组件调用的 init 方法(核心:复用 initMusicConfig 逻辑)
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* @param {string} path 音乐文件路径(组件中传入的 musicPath)
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*/
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init(path) {
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// 组件调用 init 时,复用已有的 initMusicConfig,开关状态先传 this.enabled(后续组件会通过配置更新)
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this.initMusicConfig(path, this.enabled);
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}
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/**
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* 原有初始化音乐配置方法(保留,适配动态配置)
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* @param {string} filePath 音乐路径
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* @param {boolean} enabled 播放开关
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*/
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initMusicConfig(filePath, enabled) {
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this.enabled = enabled;
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let validPath = this.defaultPath;
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if (filePath && filePath.endsWith('.mp3')) {
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validPath = filePath;
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} else if (filePath) {
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console.warn(`音乐路径无效(非MP3格式):${filePath},使用兜底路径`);
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}
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if (this.audio) {
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this.audio.pause();
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this.audio = null;
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}
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this.audio = new Audio(validPath);
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this.audio.loop = true;
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}
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/**
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* 播放音乐(保留原有逻辑,适配开关)
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*/
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play() {
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if (!this.enabled) {
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console.log("首页播放开关未开启,跳过音乐播放");
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return;
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}
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if (!this.audio) {
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this.initMusicConfig(this.defaultPath, false);
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console.warn("未初始化音乐配置,使用兜底路径且关闭播放开关");
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return;
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}
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if (!this.isPlaying) {
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this.audio.play()
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.then(() => {
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this.isPlaying = true;
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console.log("音乐播放成功,当前路径:", this.getCurrentPath());
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})
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.catch(err => {
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console.error("音乐播放失败(浏览器自动播放限制/路径错误):", err);
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this.isPlaying = false;
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});
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}
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}
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/**
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* 暂停音乐(保留原有逻辑)
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*/
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pause() {
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if (this.audio && this.isPlaying) {
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this.audio.pause();
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this.isPlaying = false;
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console.log("音乐已暂停");
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}
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}
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/**
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* 新增:设置静音/取消静音(适配管理员/首页场景)
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* @param {boolean} muted 是否静音
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*/
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setMuted(muted) {
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if (this.audio) {
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this.audio.muted = muted;
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console.log(muted ? "音乐已静音" : "音乐已取消静音");
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}
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}
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/**
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* 新增:stop 方法(组件 onUnmounted 调用,暂停+重置进度)
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*/
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stop() {
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if (this.audio) {
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this.audio.pause();
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this.audio.currentTime = 0; // 重置播放进度到开头
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this.isPlaying = false;
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console.log("音乐已停止(重置进度)");
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}
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}
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/**
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* 新增:destroy 方法(组件 onUnmounted 调用,销毁实例释放内存)
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*/
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destroy() {
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this.stop(); // 先停止播放
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if (this.audio) {
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this.audio = null; // 清空音频实例,释放内存
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console.log("音乐实例已销毁,释放内存");
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}
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}
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/**
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* 获取当前音乐路径(保留原有逻辑)
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* @returns {string} 相对路径
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*/
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getCurrentPath() {
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if (!this.audio) return this.defaultPath;
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return this.audio.src.split(window.location.origin)[1] || this.defaultPath;
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}
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/**
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* 更新音乐路径(保留原有逻辑)
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* @param {string} newPath 新路径
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*/
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updateMusicPath(newPath) {
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if (!newPath || !newPath.endsWith('.mp3')) {
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console.error("更新的音乐路径无效(非MP3格式):", newPath);
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return;
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}
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this.initMusicConfig(newPath, this.enabled);
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console.log("音乐路径已更新为:", newPath);
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if (this.enabled && this.isPlaying) {
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this.pause();
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this.play();
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}
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}
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}
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// 导出全局唯一实例
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export const musicPlayer = new MusicPlayer();
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