vuejs2.0 高级实战 全网稀缺 独立开发专属音乐WebAPP （第一部分） 更新中。。。

词条

目前市面上还没有一个Vue 2.0 的高级教学，都是一些基础的入门课程，你很难找到一个基于Vue.js的复杂应用的教学， 但是，我们为你准备了这门独一无二的Vue 2.0 高级实战课程

---

src简单的介绍

入口文件

import 'babel-polyfill'  //写在第一位
import Vue from 'vue'
import App from './App'
import router from './router'
import fastclick from 'fastclick'
import VueLazyload from 'vue-lazyload'
import store from './store'

import 'common/stylus/index.styl'

/* eslint-disable no-unused-vars */
// import vConsole from 'vconsole'

fastclick.attach(document.body)

Vue.use(VueLazyload, {
  loading: require('common/image/default.png')  //传一个默认参数
})

/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  store,
  render: h => h(App)
})

babel-polyfill是es6底层铺垫即支持一些API，比如promise

Tab页面

<template>
  <div class="tab">
    <router-link tag="div" class="tab-item" to="/recommend">
      <span class="tab-link">推荐</span>
    </router-link>
    <router-link tag="div" class="tab-item" to="/singer">
      <span class="tab-link">歌手</span>
    </router-link>
    <router-link tag="div" class="tab-item" to="/rank">
      <span class="tab-link">排行
      </span>
    </router-link>
    <router-link tag="div" class="tab-item" to="/search">
      <span class="tab-link">搜索</span>
    </router-link>
  </div>
</template>

<script type="text/ecmascript-6">
  export default {}
</script>

router-link默认是a标签，我们通过tag指定为div
.router-link-active这个class是组件自带的

APP.vue

<template>
  <div id="app" @touchmove.prevent>
    <m-header></m-header>
    <tab></tab>
    <keep-alive>
      <router-view></router-view>
    </keep-alive>
    <player></player>
  </div>
</template>

<script type="text/ecmascript-6">
  import MHeader from 'components/m-header/m-header'
  import Player from 'components/player/player'
  import Tab from 'components/tab/tab'

  export default {
    components: {
      MHeader,
      Tab,
      Player
    }
  }
</script>

仔细的看一下引入的组件Tab以及一个布局方式

jsonp的封装

import originJsonp from 'jsonp'   //jsonp 结合promise 封装

export default function jsonp(url, data, option) {
  url += (url.indexOf('?') < 0 ? '?' : '&') + param(data)

  return new Promise((resolve, reject) => {
    originJsonp(url, option, (err, data) => {
      if (!err) {
        resolve(data)
      } else {
        reject(err)
      }
    })
  })
}

export function param(data) {
  let url = ''
  for (var k in data) {
    let value = data[k] !== undefined ? data[k] : ''
    url += '&' + k + '=' + encodeURIComponent(value)
    //视频代码 
    //url += `&${k}=${encodeURIComponent(value)}`   es6语法
  }
  return url ? url.substring(1) : ''
}

重点关注一下URL的拼接可以用到项目中

---

API/recommend.js 使用jsonp 调取轮播图的数据

import jsonp from 'common/js/jsonp'
import {commonParams, options} from './config'

export function getRecommend() {
  const url = 'https://c.y.qq.com/musichall/fcgi-bin/fcg_yqqhomepagerecommend.fcg'

  const data = Object.assign({}, commonParams, {  //assign es6语法
    platform: 'h5',
    uin: 0,
    needNewCode: 1
  })

  return jsonp(url, data, options)
}

用到了es6对象的合并方法Object.assign

config.js

export const commonParams = {
  g_tk: 1928093487,
  inCharset: 'utf-8',
  outCharset: 'utf-8',
  notice: 0,
  format: 'jsonp'
}

export const options = {
  param: 'jsonpCallback'
}

export const ERR_OK = 0

定义一些公共参数，不用每次再去重写

components/recommend.vue 在组件中调用接口

<div v-if="recommends.length" class="slider-wrapper" ref="sliderWrapper">
          <slider>
            <div v-for="item in recommends">
              <a :href="item.linkUrl">
                <img class="needsclick" @load="loadImage" :src="item.picUrl">
                <!-- 如果fastclick监听到有class为needsclick就不会拦截 -->
              </a>
            </div>
          </slider>
        </div>

这里用到了slider组件以及slot的知识，也遇到了一个坑，因为数据响应
必须确定有数据v-if="recommends.length"才能保证插槽的正确显示

export default {
    data() {
      return {
        recommends: []
      }
    },
    created() {
      this._getRecommend()
    },
    methods: {

      _getRecommend() {
        getRecommend().then((res) => {
          if (res.code === ERR_OK) {
            this.recommends = res.data.slider
          }
        })
      }
    },
    components: {
      Slider
    }
  }

<div class="recommend-list">
          <h1 class="list-title">热门歌单推荐</h1>
          <ul>
            <li @click="selectItem(item)" v-for="item in discList" class="item">
              <div class="icon">
                <img width="60" height="60" v-lazy="item.imgurl">
              </div>
              <div class="text">
                <h2 class="name" v-html="item.creator.name"></h2>
                <p class="desc" v-html="item.dissname"></p>
              </div>
            </li>
          </ul>
        </div>

<script type="text/ecmascript-6">
  import Slider from 'base/slider/slider'
  import Loading from 'base/loading/loading'
  import Scroll from 'base/scroll/scroll'
  import {getRecommend, getDiscList} from 'api/recommend'

  import {ERR_OK} from 'api/config'


  export default {

    data() {
      return {
        recommends: [],
        discList: []
      }
    },
    created() {
      this._getRecommend()

      this._getDiscList()  //热门歌单获取
    },
    methods: {


      _getRecommend() {
        getRecommend().then((res) => {
          if (res.code === ERR_OK) {
            this.recommends = res.data.slider
          }
        })
      },
      _getDiscList() {
        getDiscList().then((res) => {
          if (res.code === ERR_OK) {
            this.discList = res.data.list
          }
        })
      },

    },
    components: {
      Slider,
      Loading,
      Scroll
    }
  }
</script>

在这里没有用jsonp而是用了axios,是因为接口有host、referer校验不得使用后端代理接口的方式去处理

bulid目录下dev-server.js处理代理

require('./check-versions')()

var config = require('../config')
if (!process.env.NODE_ENV) {
  process.env.NODE_ENV = JSON.parse(config.dev.env.NODE_ENV)
}

var opn = require('opn')
var path = require('path')
var express = require('express')
var webpack = require('webpack')
var proxyMiddleware = require('http-proxy-middleware')
var webpackConfig = require('./webpack.dev.conf')
var axios = require('axios') //第一步

// default port where dev server listens for incoming traffic
var port = process.env.PORT || config.dev.port
// automatically open browser, if not set will be false
var autoOpenBrowser = !!config.dev.autoOpenBrowser
// Define HTTP proxies to your custom API backend
// https://github.com/chimurai/http-proxy-middleware
var proxyTable = config.dev.proxyTable

var app = express()

var apiRoutes = express.Router()   //以下是后端代理接口 第二步

apiRoutes.get('/getDiscList', function (req, res) {
  var url = 'https://c.y.qq.com/splcloud/fcgi-bin/fcg_get_diss_by_tag.fcg'
  axios.get(url, {
    headers: {
      referer: 'https://c.y.qq.com/',
      host: 'c.y.qq.com'
    },
    params: req.query
  }).then((response) => {
    res.json(response.data)  //输出到浏览器的res
  }).catch((e) => {
    console.log(e)
  })
})

apiRoutes.get('/lyric', function (req, res) {  //这是另一个接口下节将用到
  var url = 'https://c.y.qq.com/lyric/fcgi-bin/fcg_query_lyric_new.fcg'

  axios.get(url, {
    headers: {
      referer: 'https://c.y.qq.com/',
      host: 'c.y.qq.com'
    },
    params: req.query
  }).then((response) => {
    var ret = response.data
    if (typeof ret === 'string') {
      var reg = /^\w+\(({[^()]+})\)$/
      var matches = ret.match(reg)
      if (matches) {
        ret = JSON.parse(matches[1])
      }
    }
    res.json(ret)
  }).catch((e) => {
    console.log(e)
  })
})

app.use('/api', apiRoutes)   //最后一步

var compiler = webpack(webpackConfig)

var devMiddleware = require('webpack-dev-middleware')(compiler, {
  publicPath: webpackConfig.output.publicPath,
  quiet: true
})

var hotMiddleware = require('webpack-hot-middleware')(compiler, {
  log: () => {}
})
// force page reload when html-webpack-plugin template changes
compiler.plugin('compilation', function (compilation) {
  compilation.plugin('html-webpack-plugin-after-emit', function (data, cb) {
    hotMiddleware.publish({ action: 'reload' })
    cb()
  })
})

// proxy api requests
Object.keys(proxyTable).forEach(function (context) {
  var options = proxyTable[context]
  if (typeof options === 'string') {
    options = { target: options }
  }
  app.use(proxyMiddleware(options.filter || context, options))
})

// handle fallback for HTML5 history API
app.use(require('connect-history-api-fallback')())

// serve webpack bundle output
app.use(devMiddleware)

// enable hot-reload and state-preserving
// compilation error display
app.use(hotMiddleware)

// serve pure static assets
var staticPath = path.posix.join(config.dev.assetsPublicPath, config.dev.assetsSubDirectory)
app.use(staticPath, express.static('./static'))

var uri = 'http://localhost:' + port

var _resolve
var readyPromise = new Promise(resolve => {
  _resolve = resolve
})

console.log('> Starting dev server...')
devMiddleware.waitUntilValid(() => {
  console.log('> Listening at ' + uri + '\n')
  // when env is testing, don't need open it
  if (autoOpenBrowser && process.env.NODE_ENV !== 'testing') {
    opn(uri)
  }
  _resolve()
})

var server = app.listen(port)

module.exports = {
  ready: readyPromise,
  close: () => {
    server.close()
  }
}

API/recommend.js 使用jsonp 调取热门歌单的数据

export function getDiscList() {
  const url = '/api/getDiscList'

  const data = Object.assign({}, commonParams, {
    platform: 'yqq',
    hostUin: 0,
    sin: 0,
    ein: 29,
    sortId: 5,
    needNewCode: 0,
    categoryId: 10000000,
    rnd: Math.random(),
    format: 'json'
  })

  return axios.get(url, {
    params: data
  }).then((res) => {
    return Promise.resolve(res.data)
  })
}

接下来开发推荐页面滚动列表--因为很多页面都支持滚动，所以抽出来一个公用组件Scroll.vue

<template>
  <div ref="wrapper">
    <slot></slot>
  </div>
</template>

<script type="text/ecmascript-6">
  import BScroll from 'better-scroll'

  export default {
    props: {
      probeType: {
        type: Number,
        default: 1
      },
      click: {
        type: Boolean,
        default: true
      },
      listenScroll: {
        type: Boolean,
        default: false
      },
      data: {
        type: Array,
        default: null
      },
      pullup: {
        type: Boolean,
        default: false
      },
      beforeScroll: {
        type: Boolean,
        default: false
      },
      refreshDelay: {
        type: Number,
        default: 20
      }
    },
    mounted() {
      setTimeout(() => {
        this._initScroll()
      }, 20)
    },
    methods: {
      _initScroll() {
        if (!this.$refs.wrapper) {
          return
        }
        this.scroll = new BScroll(this.$refs.wrapper, {
          probeType: this.probeType,
          click: this.click
        })

        if (this.listenScroll) {
          let me = this  //注意这块
          this.scroll.on('scroll', (pos) => {
            me.$emit('scroll', pos)
          })
        }

        if (this.pullup) {
          this.scroll.on('scrollEnd', () => {
            if (this.scroll.y <= (this.scroll.maxScrollY + 50)) {
              this.$emit('scrollToEnd')
            }
          })
        }

        if (this.beforeScroll) {
          this.scroll.on('beforeScrollStart', () => {
            this.$emit('beforeScroll')
          })
        }
      },
      disable() {
        this.scroll && this.scroll.disable()
      },
      enable() {
        this.scroll && this.scroll.enable()
      },
      refresh() {
        this.scroll && this.scroll.refresh()
      },
      scrollTo() {
        this.scroll && this.scroll.scrollTo.apply(this.scroll, arguments)
      },
      scrollToElement() {
        this.scroll && this.scroll.scrollToElement.apply(this.scroll, arguments)
      }
    },
    watch: {
      data() {
        setTimeout(() => {
          this.refresh()
        }, this.refreshDelay)
      }
    }
  }
</script>

recommend.vue

可能会遇到一个问题，初始化后不能滚动，是因为高度的问题，所以给img加了一个方法，这里提到了vuex的使用，那怎么给vuex提交数据细心的同学可能会发现↓↓↓↓↓

<template>
  <div class="recommend" ref="recommend">
    <scroll ref="scroll" class="recommend-content" :data="discList">
      <div>
        <div v-if="recommends.length" class="slider-wrapper" ref="sliderWrapper">
          <slider>
            <div v-for="item in recommends">
              <a :href="item.linkUrl">
                <img class="needsclick" @load="loadImage" :src="item.picUrl">
                <!-- 如果fastclick监听到有class为needsclick就不会拦截 -->
              </a>
            </div>
          </slider>
        </div>
        <div class="recommend-list">
          <h1 class="list-title">热门歌单推荐</h1>
          <ul>
            <li @click="selectItem(item)" v-for="item in discList" class="item">
              <div class="icon">
                <img width="60" height="60" v-lazy="item.imgurl">
              </div>
              <div class="text">
                <h2 class="name" v-html="item.creator.name"></h2>
                <p class="desc" v-html="item.dissname"></p>
              </div>
            </li>
          </ul>
        </div>
      </div>
      <div class="loading-container" v-show="!discList.length">
        <loading></loading>
      </div>
    </scroll>

  </div>
</template>

<script type="text/ecmascript-6">
  import Slider from 'base/slider/slider'
  import Loading from 'base/loading/loading'
  import Scroll from 'base/scroll/scroll'
  import {getRecommend, getDiscList} from 'api/recommend'

  import {ERR_OK} from 'api/config'
  import {mapMutations} from 'vuex'

  export default {

    data() {
      return {
        recommends: [],
        discList: []
      }
    },
    created() {
      this._getRecommend()

      this._getDiscList()
    },
    methods: {

      loadImage() {
        if (!this.checkloaded) {
          this.checkloaded = true
          this.$refs.scroll.refresh()
        }
      },
      selectItem(item) {
        this.$router.push({
          path: `/recommend/${item.dissid}`
        })
        this.setDisc(item)
      },
      _getRecommend() {
        getRecommend().then((res) => {
          if (res.code === ERR_OK) {
            this.recommends = res.data.slider
          }
        })
      },
      _getDiscList() {
        getDiscList().then((res) => {
          if (res.code === ERR_OK) {
            this.discList = res.data.list
          }
        })
      },
      ...mapMutations({
        setDisc: 'SET_DISC'
      })
    },
    components: {
      Slider,
      Loading,
      Scroll
    }
  }
</script>

接下来是歌手页面，由于考虑到二级路由要跳到歌手详情，所以抽出一个独立组件listview.vue，涉及到数据结构处理、类的创建、es6的字符拼接、数组map方法、自定义data属性获取方法的封装

<template>
  <scroll @scroll="scroll"
          :listen-scroll="listenScroll"
          :probe-type="probeType"
          :data="data"
          class="listview"
          ref="listview">
    <ul>
      <li v-for="group in data" class="list-group" ref="listGroup">
        <h2 class="list-group-title">{{group.title}}</h2>
        <uL>
          <li @click="selectItem(item)" v-for="item in group.items" class="list-group-item">
            <img class="avatar" v-lazy="item.avatar">
            <span class="name">{{item.name}}</span>
          </li>
        </uL>
      </li>
    </ul>
    <div class="list-shortcut" @touchstart.stop.prevent="onShortcutTouchStart" @touchmove.stop.prevent="onShortcutTouchMove"
         @touchend.stop>
      <ul>
        <li v-for="(item, index) in shortcutList" :data-index="index" class="item"
            :class="{'current':currentIndex===index}">{{item}}
        </li>
      </ul>
    </div>
    <div class="list-fixed" ref="fixed" v-show="fixedTitle">
      <div class="fixed-title">{{fixedTitle}} </div>
    </div>
    <div v-show="!data.length" class="loading-container">
      <loading></loading>
    </div>
  </scroll>
</template>

<script>
  import Scroll from 'base/scroll/scroll'
  import Loading from 'base/loading/loading'
  import {getData} from 'common/js/dom'

  const TITLE_HEIGHT = 30
  const ANCHOR_HEIGHT = 18  //样式的高度

  export default {
    props: {
      data: {
        type: Array,
        default: []
      }
    },
    computed: {
      shortcutList() {
        return this.data.map((group) => {
          return group.title.substr(0, 1)
        })
      },
      fixedTitle() {
        if (this.scrollY > 0) {
          return ''
        }
        return this.data[this.currentIndex] ? this.data[this.currentIndex].title : ''
      }
    },
    data() {
      return {
        scrollY: -1,
        currentIndex: 0,
        diff: -1
      }
    },
    created() {
      this.probeType = 3
      this.listenScroll = true
      this.touch = {}
      this.listHeight = []
    },
    methods: {
      selectItem(item) {
        this.$emit('select', item)
      },
      onShortcutTouchStart(e) {
        let anchorIndex = getData(e.target, 'index')
        let firstTouch = e.touches[0] //第一个手指的位置
        this.touch.y1 = firstTouch.pageY  
        this.touch.anchorIndex = anchorIndex

        this._scrollTo(anchorIndex)
      },
      onShortcutTouchMove(e) {
        let firstTouch = e.touches[0]
        this.touch.y2 = firstTouch.pageY
        let delta = (this.touch.y2 - this.touch.y1) / ANCHOR_HEIGHT | 0  //或0 相当于向下取整
        let anchorIndex = parseInt(this.touch.anchorIndex) + delta

        this._scrollTo(anchorIndex)
      },
      refresh() {
        this.$refs.listview.refresh()
      },
      scroll(pos) {
        this.scrollY = pos.y
      },
      _calculateHeight() {
        this.listHeight = []
        const list = this.$refs.listGroup
        let height = 0
        this.listHeight.push(height)
        for (let i = 0; i < list.length; i++) {
          let item = list[i]
          height += item.clientHeight
          this.listHeight.push(height)
        }  //获取到从第一个到最后一个每一个的height
      },
      _scrollTo(index) {
        if (!index && index !== 0) {
          return
        }
        if (index < 0) {
          index = 0
        } else if (index > this.listHeight.length - 2) {
          index = this.listHeight.length - 2
        }
        this.scrollY = -this.listHeight[index]
        this.$refs.listview.scrollToElement(this.$refs.listGroup[index], 0)
      }
    },
    watch: {
      data() {
        setTimeout(() => {
          this._calculateHeight()
        }, 20)
      },
      scrollY(newY) {
        const listHeight = this.listHeight
        // 当滚动到顶部，newY>0
        if (newY > 0) {
          this.currentIndex = 0
          return
        }
        // 在中间部分滚动
        for (let i = 0; i < listHeight.length - 1; i++) {
          let height1 = listHeight[i]
          let height2 = listHeight[i + 1]
          if (-newY >= height1 && -newY < height2) { //newY往上滑是负值 --变正
            this.currentIndex = i
            this.diff = height2 + newY
            return
          }
        }
        // 当滚动到底部，且-newY大于最后一个元素的上限
        this.currentIndex = listHeight.length - 2
      },
      diff(newVal) {
        let fixedTop = (newVal > 0 && newVal < TITLE_HEIGHT) ? newVal - TITLE_HEIGHT : 0
        if (this.fixedTop === fixedTop) {
          return
        }
        this.fixedTop = fixedTop
        this.$refs.fixed.style.transform = `translate3d(0,${fixedTop}px,0)`
      }
    },
    components: {
      Scroll,
      Loading
    }
  }

</script>

singer.vue

引入listview组件，有一个20毫秒的定时器，关键在于左右联动的思路很重要，以及关于diff的处理增强用户体验

<template>
  <div class="singer" ref="singer">
    <list-view @select="selectSinger" :data="singers" ref="list"></list-view>
    <router-view></router-view>
  </div>
</template>

<script>
  import ListView from 'base/listview/listview'
  import {getSingerList} from 'api/singer'
  import {ERR_OK} from 'api/config'
  import Singer from 'common/js/singer'
  import {mapMutations} from 'vuex'  //对Mutations的封装
  import {playlistMixin} from 'common/js/mixin'

  const HOT_SINGER_LEN = 10
  const HOT_NAME = '热门'

  export default {
    mixins: [playlistMixin],
    data() {
      return {
        singers: []
      }
    },
    created() {
      this._getSingerList()
    },
    methods: {
      handlePlaylist(playlist) {
        const bottom = playlist.length > 0 ? '60px' : ''
        this.$refs.singer.style.bottom = bottom
        this.$refs.list.refresh()
      },
      selectSinger(singer) {
        this.$router.push({
          path: `/singer/${singer.id}`
        })
        this.setSinger(singer)
      },
      _getSingerList() {
        getSingerList().then((res) => {
          if (res.code === ERR_OK) {
            this.singers = this._normalizeSinger(res.data.list)
          }
        })
      },
      _normalizeSinger(list) {
        let map = {
          hot: {
            title: HOT_NAME,
            items: []
          }
        }
        list.forEach((item, index) => {
          if (index < HOT_SINGER_LEN) {
            map.hot.items.push(new Singer({
              name: item.Fsinger_name,
              id: item.Fsinger_mid
            }))
          }
          const key = item.Findex
          if (!map[key]) {
            map[key] = {
              title: key,
              items: []
            }
          }
          map[key].items.push(new Singer({
            name: item.Fsinger_name,
            id: item.Fsinger_mid
          }))
        })
        // 为了得到有序列表，我们需要处理 map
        let ret = []
        let hot = []
        for (let key in map) {
          let val = map[key]
          if (val.title.match(/[a-zA-Z]/)) {
            ret.push(val)
          } else if (val.title === HOT_NAME) {
            hot.push(val)
          }
        }
        ret.sort((a, b) => {
          return a.title.charCodeAt(0) - b.title.charCodeAt(0)
        })
        return hot.concat(ret)
      },
      ...mapMutations({
        setSinger: 'SET_SINGER'
      })
    },
    components: {
      ListView
    }
  }

</script>

歌手详情页，为了组件重用抽出来一个music-list.vue,在此基础又抽出来一个song-list.vue，用到了v-html来转义字符、计算属性里返回对象的某几个key比如只传入name或者头像、mapGetters获取vuex的数据

<template>
  <div class="song-list">
    <ul>
      <li @click="selectItem(song, index)" class="item" v-for="(song, index) in songs">
        <div class="rank" v-show="rank">
          <span :class="getRankCls(index)" v-text="getRankText(index)"></span>
        </div>
        <div class="content">
          <h2 class="name">{{song.name}}</h2>
          <p class="desc">{{getDesc(song)}}</p>
        </div>
      </li>
    </ul>
  </div>
</template>

<script >
  export default {
    props: {
      songs: {
        type: Array,
        default: []
      },
      rank: {
        type: Boolean,
        default: false
      }
    },
    methods: {
      selectItem(item, index) {
        this.$emit('select', item, index)
      },
      getDesc(song) {
        return `${song.singer}·${song.album}`
      },
      getRankCls(index) {
        if (index <= 2) {
          return `icon icon${index}`
        } else {
          return 'text'
        }
      },
      getRankText(index) {
        if (index > 2) {
          return index + 1
        }
      }
    }
  }
</script>

---

<template>
  <div class="music-list">
    <div class="back" @click="back">
      <i class="icon-back"></i>
    </div>
    <h1 class="title" v-html="title"></h1>
    <div class="bg-image" :style="bgStyle" ref="bgImage">
      <div class="play-wrapper">
        <div ref="playBtn" v-show="songs.length>0" class="play" @click="random"><!-- 当数据有了以后再显示v-show -->
          <i class="icon-play"></i>
          <span class="text">随机播放全部</span>
        </div>
      </div>
      <div class="filter" ref="filter"></div>
    </div>
    <div class="bg-layer" ref="layer"></div>
    <scroll :data="songs" @scroll="scroll"
            :listen-scroll="listenScroll" :probe-type="probeType" class="list" ref="list">
      <div class="song-list-wrapper">
        <song-list :songs="songs" :rank="rank" @select="selectItem"></song-list>
      </div>
      <div v-show="!songs.length" class="loading-container">
        <loading></loading>
      </div>
    </scroll>
  </div>
</template>

<script >
  import Scroll from 'base/scroll/scroll'
  import Loading from 'base/loading/loading'
  import SongList from 'base/song-list/song-list'
  import {prefixStyle} from 'common/js/dom'
  import {playlistMixin} from 'common/js/mixin'
  import {mapActions} from 'vuex'

  const RESERVED_HEIGHT = 40
  const transform = prefixStyle('transform')
  const backdrop = prefixStyle('backdrop-filter')

  export default {
    mixins: [playlistMixin],
    props: {
      bgImage: {
        type: String,
        default: ''
      },
      songs: {
        type: Array,
        default: []
      },
      title: {
        type: String,
        default: ''
      },
      rank: {
        type: Boolean,
        default: false
      }
    },
    data() {
      return {
        scrollY: 0
      }
    },
    computed: {
      bgStyle() {
        return `background-image:url(${this.bgImage})`
      }
    },
    created() {
      this.probeType = 3
      this.listenScroll = true
    },
    mounted() {
      this.imageHeight = this.$refs.bgImage.clientHeight
      this.minTransalteY = -this.imageHeight + RESERVED_HEIGHT
      this.$refs.list.$el.style.top = `${this.imageHeight}px`
    },
    methods: {
      handlePlaylist(playlist) {
        const bottom = playlist.length > 0 ? '60px' : ''
        this.$refs.list.$el.style.bottom = bottom
        this.$refs.list.refresh()
      },
      scroll(pos) {
        this.scrollY = pos.y
      },
      back() {
        this.$router.back()
      },
      selectItem(item, index) {
        this.selectPlay({
          list: this.songs,
          index
        })
      },
      random() {
        this.randomPlay({
          list: this.songs
        })
      },
      ...mapActions([
        'selectPlay',
        'randomPlay'
      ])
    },
    watch: {
      scrollY(newVal) {
        let translateY = Math.max(this.minTransalteY, newVal) //最远滚动位置
        let scale = 1
        let zIndex = 0
        let blur = 0
        const percent = Math.abs(newVal / this.imageHeight)
        if (newVal > 0) {
          scale = 1 + percent
          zIndex = 10
        } else {
          blur = Math.min(20, percent * 20)
        }

        this.$refs.layer.style[transform] = `translate3d(0,${translateY}px,0)`
        this.$refs.filter.style[backdrop] = `blur(${blur}px)`
        if (newVal < this.minTransalteY) {
          zIndex = 10
          this.$refs.bgImage.style.paddingTop = 0
          this.$refs.bgImage.style.height = `${RESERVED_HEIGHT}px`
          this.$refs.playBtn.style.display = 'none'
        } else { //还没滚动到那个位置
          this.$refs.bgImage.style.paddingTop = '70%'
          this.$refs.bgImage.style.height = 0
          this.$refs.playBtn.style.display = ''
        }
        this.$refs.bgImage.style[transform] = `scale(${scale})`
        this.$refs.bgImage.style.zIndex = zIndex
      }
    },
    components: {
      Scroll,
      Loading,
      SongList
    }
  }
</script>

---

下面是父组件歌手详情，封装了一个createSong的类，可在源码中查看提高了代码的重用性、扩展性因为是面向对象的方式

<template>
  <transition name="slide">
    <music-list :title="title" :bg-image="bgImage" :songs="songs"></music-list>
  </transition>
</template>

<script type="text/ecmascript-6">
  import MusicList from 'components/music-list/music-list'
  import {getSingerDetail} from 'api/singer'
  import {ERR_OK} from 'api/config'
  import {createSong} from 'common/js/song'
  import {mapGetters} from 'vuex'

  export default {
    computed: {
      title() {
        return this.singer.name
      },
      bgImage() {
        return this.singer.avatar
      },
      ...mapGetters([
        'singer'
      ])
    },
    data() {
      return {
        songs: []
      }
    },
    created() {
      this._getDetail()
    },
    methods: {
      _getDetail() {
        if (!this.singer.id) {
          this.$router.push('/singer')
          return
        }       //处理边间的例子
        getSingerDetail(this.singer.id).then((res) => {
          if (res.code === ERR_OK) {
            this.songs = this._normalizeSongs(res.data.list)
          }
        })
      },
      _normalizeSongs(list) {
        let ret = []
        list.forEach((item) => {
          let {musicData} = item
          if (musicData.songid && musicData.albummid) {
            ret.push(createSong(musicData))
          }
        })
        return ret
      }
    },
    components: {
      MusicList
    }
  }
</script>

播放器内置组件 player.vue，通过actions的方法--selectPlay,在此组件拿到currentSong，这里再重点说一下mutations和它的type要做到命名一致，nutations本质就是函数，第一个参数是state第二个参数是要修改的对象值

player组件定义到了app.vue，因为它不属于某一个页面是全局的，mapgetters是一个数组，多次批量修改mutation就要用到actions

重点是动画的过度效果，结合钩子函数实现飞入飞出动画，用到了开源动画库，create-key-animation

音乐播放事件togglePlaying，因为播放的暂停开始要调用audio的方法，可能会出现拿不到元素报错，这是用到了nextTic延时函数，添加class可以用到计算属性，歌曲的前进后退通过currentIndex，有一个小问题，暂停后切换到下一首歌要自动播放，快速点击的时候结合 ready err方法避免快速点击页面报错

条形进度条，通过audio获取可以读写的当前播放时间，将其时间戳转为时分秒格式，通过_pad给秒位前补零，做到与设计图一致，定义基础组件progress-bar，事件拖动和点击滚动条的交互实现，也就是说拖动无非就是三个事件，start move end，拖动开始前加一个开关表示初始化完成，如果拖动前是暂停状态，拖动后再让其播放

圆形进度条，用到了SVG再通过两个circle实现，完全可以应用到实际工作中

播放模式，用到util里面的shuttle函数把数组打乱，用到es6的findindex函数，由于要实时改变currentSong，父组件监听事件会被触发所以做了一个判断，如果id相同什么都不错，因为这个时候还没触发事件

<template>
  <div class="progress-bar" ref="progressBar" @click="progressClick">
    <div class="bar-inner">
      <div class="progress" ref="progress"></div>
      <div class="progress-btn-wrapper" ref="progressBtn"
           @touchstart.prevent="progressTouchStart"
           @touchmove.prevent="progressTouchMove"
           @touchend="progressTouchEnd"
      >
        <div class="progress-btn"></div>
      </div>
    </div>
  </div>
</template>

<script>
  import {prefixStyle} from 'common/js/dom'

  const progressBtnWidth = 16
  const transform = prefixStyle('transform')

  export default {
    props: {
      percent: {
        type: Number,
        default: 0
      }
    },
    created() {
      this.touch = {}
    },
    methods: {
      progressTouchStart(e) {
        this.touch.initiated = true
        this.touch.startX = e.touches[0].pageX
        this.touch.left = this.$refs.progress.clientWidth
      },
      progressTouchMove(e) {
        if (!this.touch.initiated) {
          return
        }
        const deltaX = e.touches[0].pageX - this.touch.startX
        const offsetWidth = Math.min(this.$refs.progressBar.clientWidth - progressBtnWidth, Math.max(0, this.touch.left + deltaX))
        this._offset(offsetWidth)
      },
      progressTouchEnd() {
        this.touch.initiated = false
        this._triggerPercent()
      },
      progressClick(e) {
        const rect = this.$refs.progressBar.getBoundingClientRect()
        const offsetWidth = e.pageX - rect.left
        this._offset(offsetWidth)
        // 这里当我们点击 progressBtn 的时候，e.offsetX 获取不对
        // this._offset(e.offsetX)
        this._triggerPercent()
      },
      _triggerPercent() {
        const barWidth = this.$refs.progressBar.clientWidth - progressBtnWidth
        const percent = this.$refs.progress.clientWidth / barWidth
        this.$emit('percentChange', percent)
      },
      _offset(offsetWidth) {
        this.$refs.progress.style.width = `${offsetWidth}px`
        this.$refs.progressBtn.style[transform] = `translate3d(${offsetWidth}px,0,0)`
      }
    },
    watch: {
      percent(newPercent) {
        if (newPercent >= 0 && !this.touch.initiated) {
          const barWidth = this.$refs.progressBar.clientWidth - progressBtnWidth
          const offsetWidth = newPercent * barWidth
          this._offset(offsetWidth)
        }
      }
    }
  }
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
  @import "~common/stylus/variable"

  .progress-bar
    height: 30px
    .bar-inner
      position: relative
      top: 13px
      height: 4px
      background: rgba(0, 0, 0, 0.3)
      .progress
        position: absolute
        height: 100%
        background: $color-theme
      .progress-btn-wrapper
        position: absolute
        left: -8px
        top: -13px
        width: 30px
        height: 30px
        .progress-btn
          position: relative
          top: 7px
          left: 7px
          box-sizing: border-box
          width: 16px
          height: 16px
          border: 3px solid $color-text
          border-radius: 50%
          background: $color-theme
</style>

<template>
  <div class="progress-circle">
    <svg :width="radius" :height="radius" viewBox="0 0 100 100" version="1.1" xmlns="http://www.w3.org/2000/svg">
      <circle class="progress-background" r="50" cx="50" cy="50" fill="transparent"/>
      <circle class="progress-bar" r="50" cx="50" cy="50" fill="transparent" :stroke-dasharray="dashArray"
              :stroke-dashoffset="dashOffset"/>
    </svg>
    <slot></slot>
  </div>
</template>

<script type="text/ecmascript-6">
  export default {
    props: {
      radius: {
        type: Number,
        default: 100
      },
      percent: {
        type: Number,
        default: 0
      }
    },
    data() {
      return {
        dashArray: Math.PI * 100
      }
    },
    computed: {
      dashOffset() {
        return (1 - this.percent) * this.dashArray
      }
    }
  }
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
  @import "~common/stylus/variable"

  .progress-circle
    position: relative
    circle
      stroke-width: 8px
      transform-origin: center
      &.progress-background
        transform: scale(0.9)
        stroke: $color-theme-d
      &.progress-bar
        transform: scale(0.9) rotate(-90deg)
        stroke: $color-theme
</style>

<template>
  <div class="player" v-show="playlist.length>0">
    <transition name="normal"
                @enter="enter"
                @after-enter="afterEnter"
                @leave="leave"
                @after-leave="afterLeave"
    >
      <div class="normal-player" v-show="fullScreen">
        <div class="background">
          <img width="100%" height="100%" :src="currentSong.image">
        </div>
        <div class="top">
          <div class="back" @click="back">
            <i class="icon-back"></i>
          </div>
          <h1 class="title" v-html="currentSong.name"></h1>
          <h2 class="subtitle" v-html="currentSong.singer"></h2>
        </div>
        <div class="middle"
             @touchstart.prevent="middleTouchStart"
             @touchmove.prevent="middleTouchMove"
             @touchend="middleTouchEnd"
        >
          <div class="middle-l" ref="middleL">
            <div class="cd-wrapper" ref="cdWrapper">
              <div class="cd" :class="cdCls">
                <img class="image" :src="currentSong.image">
              </div>
            </div>
            <div class="playing-lyric-wrapper">
              <div class="playing-lyric">{{playingLyric}}</div>
            </div>
          </div>
          <scroll class="middle-r" ref="lyricList" :data="currentLyric && currentLyric.lines">
            <div class="lyric-wrapper">
              <div v-if="currentLyric">
                <p ref="lyricLine"
                   class="text"
                   :class="{'current': currentLineNum ===index}"
                   v-for="(line,index) in currentLyric.lines">{{line.txt}}</p>
              </div>
            </div>
          </scroll>
        </div>
        <div class="bottom">
          <div class="dot-wrapper">
            <span class="dot" :class="{'active':currentShow==='cd'}"></span>
            <span class="dot" :class="{'active':currentShow==='lyric'}"></span>
          </div>
          <div class="progress-wrapper">
            <span class="time time-l">{{format(currentTime)}}</span>
            <div class="progress-bar-wrapper">
              <progress-bar :percent="percent" @percentChange="onProgressBarChange"></progress-bar>
            </div>
            <span class="time time-r">{{format(currentSong.duration)}}</span>
          </div>
          <div class="operators">
            <div class="icon i-left" @click="changeMode">
              <i :class="iconMode"></i>
            </div>
            <div class="icon i-left" :class="disableCls">
              <i @click="prev" class="icon-prev"></i>
            </div>
            <div class="icon i-center" :class="disableCls">
              <i @click="togglePlaying" :class="playIcon"></i>
            </div>
            <div class="icon i-right" :class="disableCls">
              <i @click="next" class="icon-next"></i>
            </div>
            <div class="icon i-right">
              <i @click="toggleFavorite(currentSong)" class="icon" :class="getFavoriteIcon(currentSong)"></i>
            </div>
          </div>
        </div>
      </div>
    </transition>
    <transition name="mini">
      <div class="mini-player" v-show="!fullScreen" @click="open">
        <div class="icon">
          <img :class="cdCls" width="40" height="40" :src="currentSong.image">
        </div>
        <div class="text">
          <h2 class="name" v-html="currentSong.name"></h2>
          <p class="desc" v-html="currentSong.singer"></p>
        </div>
        <div class="control">
          <progress-circle :radius="radius" :percent="percent">
            <i @click.stop="togglePlaying" class="icon-mini" :class="miniIcon"></i>
          </progress-circle>
        </div>
        <div class="control" @click.stop="showPlaylist">
          <i class="icon-playlist"></i>
        </div>
      </div>
    </transition>
    <playlist ref="playlist"></playlist>
    <audio ref="audio" :src="currentSong.url" @play="ready" @error="error" @timeupdate="updateTime"
           @ended="end"></audio>
  </div>
</template>

<script type="">
  import {mapGetters, mapMutations, mapActions} from 'vuex'
  import animations from 'create-keyframe-animation'
  import {prefixStyle} from 'common/js/dom'
  import ProgressBar from 'base/progress-bar/progress-bar'
  import ProgressCircle from 'base/progress-circle/progress-circle'
  import {playMode} from 'common/js/config'
  import Lyric from 'lyric-parser'
  import Scroll from 'base/scroll/scroll'
  import {playerMixin} from 'common/js/mixin'
  import Playlist from 'components/playlist/playlist'

  const transform = prefixStyle('transform')
  const transitionDuration = prefixStyle('transitionDuration')

  export default {
    mixins: [playerMixin],
    data() {
      return {
        songReady: false,
        currentTime: 0,
        radius: 32,
        currentLyric: null,
        currentLineNum: 0,
        currentShow: 'cd',
        playingLyric: ''
      }
    },
    computed: {
      cdCls() {
        return this.playing ? 'play' : 'play pause'
      },
      playIcon() {
        return this.playing ? 'icon-pause' : 'icon-play'
      },
      miniIcon() {
        return this.playing ? 'icon-pause-mini' : 'icon-play-mini'
      },
      disableCls() {
        return this.songReady ? '' : 'disable'
      },
      percent() {
        return this.currentTime / this.currentSong.duration
      },
      ...mapGetters([
        'currentIndex',
        'fullScreen',
        'playing'
      ])
    },
    created() {
      this.touch = {}
    },
    methods: {
      back() {
        this.setFullScreen(false)
      },
      open() {
        this.setFullScreen(true)
      },
      enter(el, done) {
        const {x, y, scale} = this._getPosAndScale()

        let animation = {
          0: {
            transform: `translate3d(${x}px,${y}px,0) scale(${scale})`
          },
          60: {
            transform: `translate3d(0,0,0) scale(1.1)`
          },
          100: {
            transform: `translate3d(0,0,0) scale(1)`
          }
        }

        animations.registerAnimation({
          name: 'move',
          animation,
          presets: {
            duration: 400,
            easing: 'linear'
          }
        })

        animations.runAnimation(this.$refs.cdWrapper, 'move', done)
      },
      afterEnter() {
        animations.unregisterAnimation('move')
        this.$refs.cdWrapper.style.animation = ''
      },
      leave(el, done) {
        this.$refs.cdWrapper.style.transition = 'all 0.4s'
        const {x, y, scale} = this._getPosAndScale()
        this.$refs.cdWrapper.style[transform] = `translate3d(${x}px,${y}px,0) scale(${scale})`
        this.$refs.cdWrapper.addEventListener('transitionend', done)
      },
      afterLeave() {
        this.$refs.cdWrapper.style.transition = ''
        this.$refs.cdWrapper.style[transform] = ''
      },
      togglePlaying() {
        if (!this.songReady) {
          return
        }
        this.setPlayingState(!this.playing)
        if (this.currentLyric) {
          this.currentLyric.togglePlay()
        }
      },
      end() {
        if (this.mode === playMode.loop) {
          this.loop()
        } else {
          this.next()
        }
      },
      loop() {
        this.$refs.audio.currentTime = 0
        this.$refs.audio.play()
        this.setPlayingState(true)
        if (this.currentLyric) {
          this.currentLyric.seek(0)
        }
      },
      next() {
        if (!this.songReady) {
          return
        }
        if (this.playlist.length === 1) {
          this.loop()
          return
        } else {
          let index = this.currentIndex + 1
          if (index === this.playlist.length) {
            index = 0
          }
          this.setCurrentIndex(index)
          if (!this.playing) {
            this.togglePlaying()
          }
        }
        this.songReady = false
      },
      prev() {
        if (!this.songReady) {
          return
        }
        if (this.playlist.length === 1) {
          this.loop()
          return
        } else {
          let index = this.currentIndex - 1
          if (index === -1) {
            index = this.playlist.length - 1
          }
          this.setCurrentIndex(index)
          if (!this.playing) {
            this.togglePlaying()
          }
        }
        this.songReady = false
      },
      ready() {
        this.songReady = true
        this.savePlayHistory(this.currentSong)
      },
      error() {
        this.songReady = true
      },
      updateTime(e) {
        this.currentTime = e.target.currentTime
      },
      format(interval) {
        interval = interval | 0
        const minute = interval / 60 | 0
        const second = this._pad(interval % 60)
        return `${minute}:${second}`
      },
      onProgressBarChange(percent) {
        const currentTime = this.currentSong.duration * percent
        this.$refs.audio.currentTime = currentTime
        if (!this.playing) {
          this.togglePlaying()
        }
        if (this.currentLyric) {
          this.currentLyric.seek(currentTime * 1000)
        }
      },
      getLyric() {
        this.currentSong.getLyric().then((lyric) => {
          if (this.currentSong.lyric !== lyric) {
            return
          }
          this.currentLyric = new Lyric(lyric, this.handleLyric)
          if (this.playing) {
            this.currentLyric.play()
          }
        }).catch(() => {
          this.currentLyric = null
          this.playingLyric = ''
          this.currentLineNum = 0
        })
      },
      handleLyric({lineNum, txt}) {
        this.currentLineNum = lineNum
        if (lineNum > 5) {
          let lineEl = this.$refs.lyricLine[lineNum - 5]
          this.$refs.lyricList.scrollToElement(lineEl, 1000)
        } else {
          this.$refs.lyricList.scrollTo(0, 0, 1000)
        }
        this.playingLyric = txt
      },
      showPlaylist() {
        this.$refs.playlist.show()
      },
      middleTouchStart(e) {
        this.touch.initiated = true
        // 用来判断是否是一次移动
        this.touch.moved = false
        const touch = e.touches[0]
        this.touch.startX = touch.pageX
        this.touch.startY = touch.pageY
      },
      middleTouchMove(e) {
        if (!this.touch.initiated) {
          return
        }
        const touch = e.touches[0]
        const deltaX = touch.pageX - this.touch.startX
        const deltaY = touch.pageY - this.touch.startY
        if (Math.abs(deltaY) > Math.abs(deltaX)) {
          return
        }
        if (!this.touch.moved) {
          this.touch.moved = true
        }
        const left = this.currentShow === 'cd' ? 0 : -window.innerWidth
        const offsetWidth = Math.min(0, Math.max(-window.innerWidth, left + deltaX))
        this.touch.percent = Math.abs(offsetWidth / window.innerWidth)
        this.$refs.lyricList.$el.style[transform] = `translate3d(${offsetWidth}px,0,0)`
        this.$refs.lyricList.$el.style[transitionDuration] = 0
        this.$refs.middleL.style.opacity = 1 - this.touch.percent
        this.$refs.middleL.style[transitionDuration] = 0
      },
      middleTouchEnd() {
        if (!this.touch.moved) {
          return
        }
        let offsetWidth
        let opacity
        if (this.currentShow === 'cd') {
          if (this.touch.percent > 0.1) {
            offsetWidth = -window.innerWidth
            opacity = 0
            this.currentShow = 'lyric'
          } else {
            offsetWidth = 0
            opacity = 1
          }
        } else {
          if (this.touch.percent < 0.9) {
            offsetWidth = 0
            this.currentShow = 'cd'
            opacity = 1
          } else {
            offsetWidth = -window.innerWidth
            opacity = 0
          }
        }
        const time = 300
        this.$refs.lyricList.$el.style[transform] = `translate3d(${offsetWidth}px,0,0)`
        this.$refs.lyricList.$el.style[transitionDuration] = `${time}ms`
        this.$refs.middleL.style.opacity = opacity
        this.$refs.middleL.style[transitionDuration] = `${time}ms`
        this.touch.initiated = false
      },
      _pad(num, n = 2) {
        let len = num.toString().length
        while (len < n) {
          num = '0' + num
          len++
        }
        return num
      },
      _getPosAndScale() {
        const targetWidth = 40
        const paddingLeft = 40
        const paddingBottom = 30
        const paddingTop = 80
        const width = window.innerWidth * 0.8
        const scale = targetWidth / width
        const x = -(window.innerWidth / 2 - paddingLeft)
        const y = window.innerHeight - paddingTop - width / 2 - paddingBottom
        return {
          x,
          y,
          scale
        }
      },
      ...mapMutations({
        setFullScreen: 'SET_FULL_SCREEN'
      }),
      ...mapActions([
        'savePlayHistory'
      ])
    },
    watch: {
      currentSong(newSong, oldSong) {
        if (!newSong.id) {
          return
        }
        if (newSong.id === oldSong.id) {
          return
        }
        if (this.currentLyric) {
          this.currentLyric.stop()
          this.currentTime = 0
          this.playingLyric = ''
          this.currentLineNum = 0
        }
        clearTimeout(this.timer)
        this.timer = setTimeout(() => {
          this.$refs.audio.play()
          this.getLyric()
        }, 1000)
      },
      playing(newPlaying) {
        const audio = this.$refs.audio
        this.$nextTick(() => {
          newPlaying ? audio.play() : audio.pause()
        })
      },
      fullScreen(newVal) {
        if (newVal) {
          setTimeout(() => {
            this.$refs.lyricList.refresh()
          }, 20)
        }
      }
    },
    components: {
      ProgressBar,
      ProgressCircle,
      Scroll,
      Playlist
    }
  }
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
  @import "~common/stylus/variable"
  @import "~common/stylus/mixin"

  .player
    .normal-player
      position: fixed
      left: 0
      right: 0
      top: 0
      bottom: 0
      z-index: 150
      background: $color-background
      .background
        position: absolute
        left: 0
        top: 0
        width: 100%
        height: 100%
        z-index: -1
        opacity: 0.6
        filter: blur(20px)
      .top
        position: relative
        margin-bottom: 25px
        .back
          position absolute
          top: 0
          left: 6px
          z-index: 50
          .icon-back
            display: block
            padding: 9px
            font-size: $font-size-large-x
            color: $color-theme
            transform: rotate(-90deg)
        .title
          width: 70%
          margin: 0 auto
          line-height: 40px
          text-align: center
          no-wrap()
          font-size: $font-size-large
          color: $color-text
        .subtitle
          line-height: 20px
          text-align: center
          font-size: $font-size-medium
          color: $color-text
      .middle
        position: fixed
        width: 100%
        top: 80px
        bottom: 170px
        white-space: nowrap
        font-size: 0
        .middle-l
          display: inline-block
          vertical-align: top
          position: relative
          width: 100%
          height: 0
          padding-top: 80%
          .cd-wrapper
            position: absolute
            left: 10%
            top: 0
            width: 80%
            height: 100%
            .cd
              width: 100%
              height: 100%
              box-sizing: border-box
              border: 10px solid rgba(255, 255, 255, 0.1)
              border-radius: 50%
              &.play
                animation: rotate 20s linear infinite
              &.pause
                animation-play-state: paused
              .image
                position: absolute
                left: 0
                top: 0
                width: 100%
                height: 100%
                border-radius: 50%

          .playing-lyric-wrapper
            width: 80%
            margin: 30px auto 0 auto
            overflow: hidden
            text-align: center
            .playing-lyric
              height: 20px
              line-height: 20px
              font-size: $font-size-medium
              color: $color-text-l
        .middle-r
          display: inline-block
          vertical-align: top
          width: 100%
          height: 100%
          overflow: hidden
          .lyric-wrapper
            width: 80%
            margin: 0 auto
            overflow: hidden
            text-align: center
            .text
              line-height: 32px
              color: $color-text-l
              font-size: $font-size-medium
              &.current
                color: $color-text
      .bottom
        position: absolute
        bottom: 50px
        width: 100%
        .dot-wrapper
          text-align: center
          font-size: 0
          .dot
            display: inline-block
            vertical-align: middle
            margin: 0 4px
            width: 8px
            height: 8px
            border-radius: 50%
            background: $color-text-l
            &.active
              width: 20px
              border-radius: 5px
              background: $color-text-ll
        .progress-wrapper
          display: flex
          align-items: center
          width: 80%
          margin: 0px auto
          padding: 10px 0
          .time
            color: $color-text
            font-size: $font-size-small
            flex: 0 0 30px
            line-height: 30px
            width: 30px
            &.time-l
              text-align: left
            &.time-r
              text-align: right
          .progress-bar-wrapper
            flex: 1
        .operators
          display: flex
          align-items: center
          .icon
            flex: 1
            color: $color-theme
            &.disable
              color: $color-theme-d
            i
              font-size: 30px
          .i-left
            text-align: right
          .i-center
            padding: 0 20px
            text-align: center
            i
              font-size: 40px
          .i-right
            text-align: left
          .icon-favorite
            color: $color-sub-theme
      &.normal-enter-active, &.normal-leave-active
        transition: all 0.4s
        .top, .bottom
          transition: all 0.4s cubic-bezier(0.86, 0.18, 0.82, 1.32)
      &.normal-enter, &.normal-leave-to
        opacity: 0
        .top
          transform: translate3d(0, -100px, 0)
        .bottom
          transform: translate3d(0, 100px, 0)
    .mini-player
      display: flex
      align-items: center
      position: fixed
      left: 0
      bottom: 0
      z-index: 180
      width: 100%
      height: 60px
      background: $color-highlight-background
      &.mini-enter-active, &.mini-leave-active
        transition: all 0.4s
      &.mini-enter, &.mini-leave-to
        opacity: 0
      .icon
        flex: 0 0 40px
        width: 40px
        padding: 0 10px 0 20px
        img
          border-radius: 50%
          &.play
            animation: rotate 10s linear infinite
          &.pause
            animation-play-state: paused
      .text
        display: flex
        flex-direction: column
        justify-content: center
        flex: 1
        line-height: 20px
        overflow: hidden
        .name
          margin-bottom: 2px
          no-wrap()
          font-size: $font-size-medium
          color: $color-text
        .desc
          no-wrap()
          font-size: $font-size-small
          color: $color-text-d
      .control
        flex: 0 0 30px
        width: 30px
        padding: 0 10px
        .icon-play-mini, .icon-pause-mini, .icon-playlist
          font-size: 30px
          color: $color-theme-d
        .icon-mini
          font-size: 32px
          position: absolute
          left: 0
          top: 0

  @keyframes rotate
    0%
      transform: rotate(0)
    100%
      transform: rotate(360deg)
</style>