vue3中如何使用wavesurfer.js_vue3 wavesurfer container not found

案例展示：

在本案例中vue使用的vue3 的setup语法糖的写法。

一、安装wavesurfer.js

npm install wavesurfer.js
或者
yarn add wavesurfer.js

二、wavesurfer的使用

<script lang="ts" setup>
import { onMounted, ref, nextTick, h } from 'vue';
import WaveSurfer from 'wavesurfer.js/dist/wavesurfer';
import Regions from 'wavesurfer.js/dist/plugins/regions';
import Timeline from 'wavesurfer.js/dist/plugins/timeline';
import _ from 'lodash';
let wavesurfer = ref();
let waveform = ref();
let wsRegions = ref();
let start_time = ref(0);
let table_data = ref<any>([]);
let ws_regions_end = ref<any>(null);
let current_time = ref<string>('00:00:000');
let duration_time = ref<string>('00:00:000');
 
function getImageUrl() {
  return new URL('/src/assets/voice.mp3', import.meta.url).href;
}
 
const formatTime = (seconds: number) => {
  const minutes = Math.floor(seconds / 60);
  const remainingSeconds = Math.floor(seconds % 60);
  const milliseconds = Math.floor((seconds - Math.floor(seconds)) * 1000);
 
  const formattedMinutes = String(minutes).padStart(2, '0');
  const formattedSeconds = String(remainingSeconds).padStart(2, '0');
  const formattedMilliseconds = String(milliseconds).padStart(3, '0');
  return `${formattedMinutes}:${formattedSeconds}:${formattedMilliseconds}`;
};
const init = () => {
  wavesurfer.value = WaveSurfer.create({
    container: waveform.value,
    cursorColor: 'red', // 播放进行时线条颜色
    cursorWidth: 1, // 播放进行时线条宽度
    waveColor: '#4986ff', // 未播放的波纹颜色
    progressColor: 'blue', // 已播放的波纹颜色
    audioRate: 1, // 倍速
    height: 200, // 高度
    url: getImageUrl()
  });
  wsRegions.value = wavesurfer.value.registerPlugin(Regions.create());
  wavesurfer.value.registerPlugin(
    Timeline.create({
      height: 20,
      primaryLabelInterval: 2,
      // insertPosition: 'beforebegin',
      style: {
        fontSize: '10px',
        color: '#6A3274'
      }
    })
  );
};
 
/* 播放时暂停,暂停时播放 */
function clickMusic() {
  wavesurfer.value.playPause();
}
 
/* 设置开始时间 */
function setStart(current: number) {
  if (table_data.value.length <= 0) {
    start_time.value = 0;
  } else {
    // 重组二维数组
    let res = table_data.value.map((item: any) => [item.start, item.end]);
    /* 检测当前时间是否在二维数组中间 */
    let isIn: any = _.some(res, (subArray) => {
      let start = subArray[0];
      let end = subArray[1];
      return current >= start && current <= end;
    });
 
    if (isIn) {
      // 在已分割的片段内
      start_time.value = -1;
      alert('不可切割');
    } else {
      // 不在分割的片段内,且获取start值
      let obj = _.minBy(res, (subArray: any) => {
        if (subArray[1] < current) {
          return Math.abs(subArray[1] - current);
        }
      });
      if (obj) {
        start_time.value = obj[1];
      } else {
        start_time.value = 0;
      }
    }
  }
  return start_time.value;
}
/* 剪切 */
function cutMusic() {
  wavesurfer.value.pause(); // 暂停播放
  let current = wavesurfer.value.getCurrentTime();
  let start = setStart(current);
  if (start == -1) {
    return false;
  }
  let _item = {
    start: start,
    end: current,
    // content: contentEle.value,
    content: `${formatTime(start)} 至 ${formatTime(current)}`,
    color: 'hsla(200, 50%, 70%, 0.4)',
    drag: false,
    resize: false
  };
  console.log(wsRegions.value, '---------');
  wsRegions.value.addRegion(_item);
  table_data.value = wsRegions.value.regions;
}
function drawRegion() {
  table_data.value.forEach((item: any) => {
    wsRegions.value.addRegion(item);
  });
}
function delRegions(id: string) {
  table_data.value = table_data.value.filter((item: any) => item.id != id);
  wsRegions.value.clearRegions();
  wsRegions.value.regions = [];
  drawRegion();
}
function currentPlay(start: number, end: number) {
  ws_regions_end.value = end;
  wavesurfer.value.setTime(start);
  wavesurfer.value.play();
}
 
async function makedata(res: any, current: number, flag: 'prev' | 'next') {
  let index = res.indexOf(current);
  if (index == -1) return;
  if (flag == 'prev') {
    if (index == 0) {
      alert('无上一个切割位置');
      return;
    }
    wavesurfer.value.setTime(res[index - 1]);
    wavesurfer.value.isPlaying() ? wavesurfer.value.play() : wavesurfer.value.pause();
  } else {
    if (index == res.length - 1) {
      alert('无下一个切割位置');
      return;
    }
    wavesurfer.value.setTime(res[index + 1]);
    wavesurfer.value.isPlaying() ? wavesurfer.value.play() : wavesurfer.value.pause();
  }
}
 
async function changeTime(flag: 'prev' | 'next') {
  let current = wavesurfer.value.getCurrentTime();
  let res: any = [current];
  table_data.value.map((item: any) => {
    if (res.indexOf(item.start) == -1) {
      res.push(item.start);
    }
    if (res.indexOf(item.end) == -1) {
      res.push(item.end);
    }
  });
  res.sort(function (a: any, b: any) {
    return a - b;
  });
  await makedata(res, current, flag);
}
onMounted(() => {
  nextTick(() => {
    init();
    wavesurfer.value.on('audioprocess', () => {
      current_time.value = formatTime(wavesurfer.value.getCurrentTime());
      if (ws_regions_end.value !== null && wavesurfer.value.getCurrentTime() >= ws_regions_end.value - 0.1) {
        wavesurfer.value.pause(); // 暂停播放
        wavesurfer.value.setTime(ws_regions_end.value);
        current_time.value = formatTime(ws_regions_end.value);
        ws_regions_end.value = null;
      }
    });
    wavesurfer.value.on('ready', function () {
      duration_time.value = formatTime(wavesurfer.value.getDuration());
    });
  });
});
</script>

 未解决问题：

区域 wsRegions的content值。官方文档提示可接收string和HTMLElement两种格式。但在插入HTMLElement格式时只显示最后一次添加的内容。（有没有童鞋知道为什么呢？）