事件传递分离
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@ -18,19 +18,19 @@ export default class ClientList {
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const channel = webrtc.createDataChannel(name)
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channel.onopen = event => {
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//console.log('datachannel 已打开', event)
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if (callback.onopen) callback.onopen(event, channel)
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if (callback.onopen) callback.onopen(event)
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}
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channel.onclose = event => {
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//console.log('datachannel 已关闭', event)
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if (callback.onclose) callback.onclose(event, channel)
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if (callback.onclose) callback.onclose(event)
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}
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channel.onerror = event => {
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//console.log('datachannel 发生错误', event)
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if (callback.onerror) callback.onerror(event, channel)
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if (callback.onerror) callback.onerror(event)
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}
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channel.onmessage = event => {
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//console.log('datachannel 收到数据', event)
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if (callback.onmessage) callback.onmessage(event, channel)
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if (callback.onmessage) callback.onmessage(event)
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}
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})
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webrtc.onicecandidate = event => {
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@ -43,9 +43,9 @@ export default class ClientList {
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}
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}
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webrtc.ondatachannel = ({ channel }) => {
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console.log('收到对方 datachannel', channel)
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//console.log('收到对方 datachannel', channel)
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channel.onmessage = event => {
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console.log('收到对方 datachannel message', event)
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//console.log('收到对方 datachannel message', event)
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if (channels[event.target.label]) {
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channels[event.target.label].onmessage(event, channel)
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}
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@ -101,6 +101,9 @@ export default class ClientList {
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console.log('收到未知数据:', data)
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}
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}
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setChannel(name, option) {
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this.channels[name] = option
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}
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add(item) {
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this.ul.appendChild(ListItem({
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id: item.id,
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@ -16,57 +16,80 @@
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import MusicList from './music.js'
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import ClientList from './client.js'
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// 打开数据库
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// 读取本地音乐列表(本地缓存)
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const store = new IndexedDB('musicDatabase', 1, 'musicObjectStore')
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await store.open()
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const list = await store.getAll()
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console.log('本地音乐列表:', list)
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// 初始化音乐列表
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// 初始化音乐列表(加入本地缓存)
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const musicList = new MusicList({ list })
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//musicList.add() // 添加音乐
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//musicList.remove() // 移除音乐
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musicList.on('remove', item => {
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console.log('移除音乐', item)
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store.delete(item.id)
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})
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musicList.on('play', item => {
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console.log('播放音乐', item)
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})
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// 初始化客户端列表
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const clientList = new ClientList({
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channels: {
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'musicList': {
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onopen: async (event, channel) => {
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const list = await musicList.list
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console.log('发送 musicList:', list)
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channel.send(JSON.stringify(list.map(({ arrayBuffer, ...data }) => data)))
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},
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onmessage: async (event, channel) => {
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console.log('收到 musicList:', event)
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JSON.parse(event.data).forEach(item => {
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musicList.push(item)
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})
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}
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},
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'musicload': {
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onopen: async (event, channel) => {
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console.log('发送 musicload:', event)
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},
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onmessage: async (event, channel) => {
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console.log('收到 musicload:', event)
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}
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}
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const clientList = new ClientList({})
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clientList.setChannel('musicList', {
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onopen: async event => {
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console.log('发送 musicList:', event)
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const data = musicList.list.map(({ arrayBuffer, ...item }) => item)
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event.target.send(JSON.stringify(data))
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},
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onmessage: async event => {
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console.log('收到 musicList:', event)
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JSON.parse(event.data).forEach(item => {
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musicList.add(item)
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})
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}
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})
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//// 初始化客户端列表
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//const clientList = new ClientList({
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// channels: {
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// 'musicList': {
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// onopen: async (event, channel) => {
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// const list = await musicList.list
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// console.log('发送 musicList:', list)
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// channel.send(JSON.stringify(list.map(({ arrayBuffer, ...data }) => data)))
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// },
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// onmessage: async (event, channel) => {
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// console.log('收到 musicList:', event)
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// JSON.parse(event.data).forEach(item => {
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// musicList.push(item)
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// })
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// }
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// },
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// 'musicload': {
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// onopen: async (event, channel) => {
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// console.log('发送 musicload:', event)
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// },
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// onmessage: async (event, channel) => {
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// console.log('收到 musicload:', event)
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// }
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// }
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// }
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//})
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// 通过指定通道发送消息
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// 接收处理各种通道消息
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// 延迟2秒执行
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await new Promise(resolve => setTimeout(resolve, 2000))
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// 设定被动传输
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clientList.clientlist.forEach(client => {
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console.log('client:', client)
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client.webrtc.addEventListener('datachannel', event => {
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console.log('收到 datachannel:', event)
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event.channel.addEventListener('message', event => {
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console.log('收到消息:', event)
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})
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})
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})
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//await new Promise(resolve => setTimeout(resolve, 2000))
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//// 设定被动传输
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//clientList.clientlist.forEach(client => {
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// console.log('client:', client)
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// client.webrtc.addEventListener('datachannel', event => {
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// console.log('收到 datachannel:', event)
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// event.channel.addEventListener('message', event => {
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// console.log('收到消息:', event)
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// })
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// })
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//})
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//musicList.on('load', item => {
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// console.log('从来源加载音乐', item)
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@ -80,7 +103,7 @@
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// like对方的条目时亮起(双方高亮)(本地缓存)(可由对比缓存实现)
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// ban对方的条目时灰掉(也禁止对方播放)(并保持ban表)(由插件实现)
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clientList.on('channel')
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//clientList.on('channel')
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// 只需要在注册时拉取列表, 播放时才需要拉取音乐数据
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@ -2,17 +2,12 @@ import IndexedDB from './database.js'
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import { Button, List, ListItem } from './weigets.js'
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export default class MusicList {
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constructor(EventListeners = {}) {
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this.EventListeners = EventListeners
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constructor({ list = [], EventListeners = {} }) {
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this.ul = List({})
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this.EventListeners = EventListeners
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this.list = []
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this.store = new IndexedDB('musicDatabase', 1, 'musicObjectStore')
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this.store.open().then(async () => {
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this.list = await this.store.getAll()
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this.list.forEach(item => this.__add(item))
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this.EventListeners['ready'](this.list)
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})
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document.body.appendChild(this.ul)
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list.forEach(item => this.add(item)) // 列表逐一添加
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document.body.appendChild(this.ul) // 元素加入页面
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// 添加音乐播放器
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this.audio = new Audio()
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@ -23,7 +18,7 @@ export default class MusicList {
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// console.log(this.audio.currentTime)
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//})
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// 添加音乐按钮
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// 本地添加音乐按钮
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const input = document.createElement('input')
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input.type = 'file'
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input.multiple = true
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@ -42,9 +37,13 @@ export default class MusicList {
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}
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document.body.appendChild(input)
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}
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// 仅添加UI
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__add(item) {
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const li = ListItem({
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// 添加回调函数
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on(name, callback) {
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this.EventListeners[name] = callback
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}
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add(item) {
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this.list.push(item)
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this.ul.appendChild(ListItem({
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id: item.id,
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innerText: `${item.name} - ${item.size} - ${item.type} - ${item.id}`,
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children: [
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@ -66,7 +65,7 @@ export default class MusicList {
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innerText: '移除',
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onclick: event => {
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event.stopPropagation()
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this.delete(item)
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this.remove(item)
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}
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}),
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Button({
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@ -84,29 +83,15 @@ export default class MusicList {
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}
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})
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]
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})
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this.ul.appendChild(li)
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}))
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}
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// 叠加数据(双方数据计数器上升)
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async push(item) {
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console.log('叠加数据: 只增加UI不存储本地', item)
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// 先检测是否已经存在
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const data = await this.store.get(item.id)
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if (data) {
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console.log('数据已存在:', data)
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return
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}
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this.__add(item)
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}
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// 添加数据并添加UI
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add(item) {
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this.store.add(item)
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this.__add(item)
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}
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delete(item) {
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this.store.delete(item.id)
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remove(item) {
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this.ul.removeChild(this.ul.querySelector(`#${item.id}`))
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this.stop() // 停止播放
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// 执行回调函数
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if (this.EventListeners['remove']) {
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this.EventListeners['remove'](item)
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}
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}
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async play(item) {
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// 如果没有arrayBuffer则从对方获取
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@ -117,12 +102,18 @@ export default class MusicList {
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}
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this.audio.src = URL.createObjectURL(new Blob([item.arrayBuffer], { type: item.type }))
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this.audio.play()
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this._on('play', item)
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// 执行回调函数
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if (this.EventListeners['play']) {
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this.EventListeners['play'](item)
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}
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}
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stop() {
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this.audio.pause()
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this.audio.src = ''
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this._on('stop')
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// 执行回调函数
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if (this.EventListeners['stop']) {
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this.EventListeners['stop']()
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}
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}
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like(item) {
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if (!item.arrayBuffer) {
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@ -135,14 +126,4 @@ export default class MusicList {
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}
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next() { }
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prev() { }
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// 添加回调函数
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on(name, callback) {
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this.EventListeners[name] = callback
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}
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// 执行回调函数
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_on(name, ...args) {
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if (this.EventListeners[name]) {
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this.EventListeners[name](...args)
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}
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}
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}
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