UI 解耦

This commit is contained in:
2023-09-28 15:20:02 +08:00
parent eb744f66fa
commit 1acd926d8f
3 changed files with 153 additions and 28 deletions

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@ -13,13 +13,26 @@
</div>
<script type="module">
import IndexedDB from './database.js'
import MusicList from './music.js'
const musicObjectStore = new IndexedDB('musicDatabase', 1, 'musicObjectStore')
await musicObjectStore.open()
// 音乐列表
const musicList = new MusicList()
console.log('musicList:', musicList)
//musicList.on('add', async item => {
// console.log('musicList add:', item)
// const { name, size, type, lastModified, lastModifiedDate, arrayBuffer } = item
// const id = Date.now()
// // 存储到 IndexDB
// await musicObjectStore.add({ id, name, size, type, lastModified, lastModifiedDate, arrayBuffer })
//})
// webRTC 传递音乐(分别传输文件和操作事件能更流畅)
const music = async function () {
const clients = [] // 客户端列表
// 对端设备
const ul = document.createElement('ul')
document.body.appendChild(ul)
const protocol = window.location.protocol === 'https:' ? 'wss' : 'ws'
@ -119,18 +132,16 @@
mediaStreamDestination.stream.getAudioTracks().forEach(function (track) {
pc.addTrack(track, mediaStreamDestination.stream)
})
// 播放音乐
// 播放音乐(远程)
const audioSource = audioContext.createBufferSource()
audioSource.buffer = audioBuffer
audioSource.connect(mediaStreamDestination)
audioSource.start()
// 创建本地音频播放器
// 播放音乐(本地)
const audioPlayer = new Audio()
audioPlayer.srcObject = mediaStreamDestination.stream
audioPlayer.play()
// 创建SDP offer并将其设置为本地描述, 发送给远程端
console.log('创建SDP offer并将其设置为本地描述, 发送给远程端')
console.log('clients:', clients)
const id = clients[0].id
await pc.setLocalDescription(await pc.createOffer()) // 设置本地描述为 offer
ws.send(JSON.stringify({ id, offer: pc.localDescription })) // 发送给远程终端 offer
@ -161,30 +172,32 @@
const arrayBuffer = reader.result
// 存储到 IndexDB
musicObjectStore.add({ id, name, size, type, lastModified, lastModifiedDate, arrayBuffer })
// 传输音乐文件
const audioContext = new AudioContext()
audioContext.decodeAudioData(arrayBuffer, async audioBuffer => {
// 将音乐流添加到 RTCPeerConnection
const mediaStreamDestination = audioContext.createMediaStreamDestination()
mediaStreamDestination.stream.getAudioTracks().forEach(function (track) {
pc.addTrack(track, mediaStreamDestination.stream)
})
// 播放音乐
const audioSource = audioContext.createBufferSource()
audioSource.buffer = audioBuffer
audioSource.connect(mediaStreamDestination)
audioSource.start()
// 创建本地音频播放器
const audioPlayer = new Audio()
audioPlayer.srcObject = mediaStreamDestination.stream
audioPlayer.play()
// 创建SDP offer并将其设置为本地描述, 发送给远程端
console.log('创建SDP offer并将其设置为本地描述, 发送给远程端')
console.log('clients:', clients)
const id = clients[0].id
await pc.setLocalDescription(await pc.createOffer()) // 设置本地描述为 offer
ws.send(JSON.stringify({ id, offer: pc.localDescription })) // 发送给远程终端 offer
})
// 更新列表
//// 传输音乐文件
//const audioContext = new AudioContext()
//audioContext.decodeAudioData(arrayBuffer, async audioBuffer => {
// // 将音乐流添加到 RTCPeerConnection
// const mediaStreamDestination = audioContext.createMediaStreamDestination()
// mediaStreamDestination.stream.getAudioTracks().forEach(function (track) {
// pc.addTrack(track, mediaStreamDestination.stream)
// })
// // 播放音乐
// const audioSource = audioContext.createBufferSource()
// audioSource.buffer = audioBuffer
// audioSource.connect(mediaStreamDestination)
// audioSource.start()
// // 创建本地音频播放器
// const audioPlayer = new Audio()
// audioPlayer.srcObject = mediaStreamDestination.stream
// audioPlayer.play()
// // 创建SDP offer并将其设置为本地描述, 发送给远程端
// console.log('创建SDP offer并将其设置为本地描述, 发送给远程端')
// console.log('clients:', clients)
// const id = clients[0].id
// await pc.setLocalDescription(await pc.createOffer()) // 设置本地描述为 offer
// ws.send(JSON.stringify({ id, offer: pc.localDescription })) // 发送给远程终端 offer
//})
}
reader.readAsArrayBuffer(file)
})

91
public/music.js Normal file
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@ -0,0 +1,91 @@
import IndexedDB from './database.js'
import { Button, List, ListItem } from './weigets.js'
export default class MusicList {
constructor() {
this.ul = List({})
this.store = new IndexedDB('musicDatabase', 1, 'musicObjectStore')
this.store.open().then(() => {
this.store.getAll().then((data) => {
console.log(data)
data.forEach(item => this.add(item))
})
})
document.body.appendChild(this.ul)
// 添加音乐播放器
this.audio = new Audio()
this.audio.addEventListener('ended', () => {
this.next()
})
this.audio.addEventListener('timeupdate', () => {
console.log(this.audio.currentTime)
})
// 添加音乐按钮
const input = document.createElement('input')
input.type = 'file'
input.multiple = true
input.accept = 'audio/*'
input.onchange = event => {
console.log('event.target.files', event.target.files)
for (const file of event.target.files) {
const id = Date.now()
const { name, size, type } = file
const reader = new FileReader()
reader.onload = async event => {
const arrayBuffer = event.target.result
this.add({ id, name, size, type, arrayBuffer })
}
reader.readAsArrayBuffer(file)
}
}
document.body.appendChild(input)
}
add(item) {
this.store.add(item)
const li = ListItem({
id: item.id,
innerText: `${item.name} - ${item.size} - ${item.type} - ${item.id}`,
onclick: event => {
event.stopPropagation()
this.play(item.id)
},
children: [
Button({
innerText: '播放',
onclick: event => {
event.stopPropagation()
this.play(item.id)
}
}),
Button({
innerText: '停止',
onclick: event => {
event.stopPropagation()
this.stop(item.id)
}
}),
Button({
innerText: '移除',
onclick: event => {
event.stopPropagation()
this.delete(item.id)
}
})
]
})
this.ul.appendChild(li)
}
delete(id) {
// 如果是正在播放的歌曲,停止播放
this.stop(id)
const li = this.ul.querySelector(`li[data-id="${id}"]`)
this.ul.removeChild(li)
this.store.delete(id)
}
play(id) { }
stop(id) { }
next() { }
prev() { }
}

21
public/weigets.js Normal file
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@ -0,0 +1,21 @@
export function Button({ innerText, onclick }) {
const button = document.createElement('button')
button.innerText = innerText
button.onclick = onclick
return button
}
export function List({ children = [] }) {
const ul = document.createElement('ul')
children.forEach(child => ul.appendChild(child))
return ul
}
export function ListItem({ innerText, onclick, id, children = [] }) {
const li = document.createElement('li')
li.innerText = innerText
li.onclick = onclick
li.id = id
children.forEach(child => li.appendChild(child))
return li
}