vue2实现可拖拽悬浮球效果

使用场景：vue2.0悬浮球可拖拽得效果，划过后展开可跳转链接，下面上代码：

<template>
  <div ref="draggable" class="draggable" @mousedown="onMouseDown">
    <div class="hover-area">
      <nav class="menu">
        <input
          id="menu-open"
          type="checkbox"
          class="menu-open"
          name="menu-open"
          v-model="menuOpen"
        />
        <label class="menu-open-button" for="menu-open">
          <span class="hamburger hamburger-1"></span>
          <span class="hamburger hamburger-2"></span>
          <span class="hamburger hamburger-3"></span>
        </label>

        <a class="menu-item" @click="openItem('1')">
          <i class="fa fa-heart"></i> 模拟 <br />收入</a
        >

        <a class="menu-item" @click="openItem('2')">
          <i class="fa fa-envelope"></i> 我的<br />公告</a
        >
        <a class="menu-item" @click="openItem('3')">
          <i class="fa fa-ellipsis-h"></i> 我的<br />舆情</a
        >

        <a class="menu-item" @click="openItem('4')">
          <i class="fa fa-cog"></i>监控<br />设置
        </a>
      </nav>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      menuOpen: false,
    };
  },
  mounted() {
    const element = this.$refs.draggable;
    if (element) {
      element.style.position = 'fixed';
      element.style.right = '50px';
      element.style.top = `${document.documentElement.clientHeight / 2}px`;
    }
  },
  methods: {
    onMouseDown(event) {
      const element = this.$refs.draggable;
      if (!element) return;

      const rect = element.getBoundingClientRect();
      const offsetX = event.clientX - rect.left;
      const offsetY = event.clientY - rect.top;

      const onMouseMove = (moveEvent) => {
        // 解决onmouseup事件有时候不触发
        if (moveEvent.stopPropagation) {
          moveEvent.stopPropagation();
        }
        if (moveEvent.preventDefault) {
          moveEvent.preventDefault();
        }

        const newLeft = moveEvent.clientX - offsetX;
        const newTop = moveEvent.clientY - offsetY;

        // 获取视口边界
        const viewportWidth = document.documentElement.clientWidth;
        const viewportHeight = document.documentElement.clientHeight;

        // 获取元素的尺寸
        const elementWidth = element.offsetWidth;
        const elementHeight = element.offsetHeight + 100;

        // 检查边界，确保div不超出视口
        const boundedLeft = Math.max(
          0,
          Math.min(newLeft, viewportWidth - elementWidth)
        );
        const boundedTop = Math.max(
          0,
          Math.min(newTop, viewportHeight - elementHeight)
        );

        element.style.left = `${boundedLeft}px`;
        element.style.top = `${boundedTop}px`;
      };

      const onMouseUp = () => {
        document.removeEventListener('mousemove', onMouseMove);
        document.removeEventListener('mouseup', onMouseUp);
      };

      document.addEventListener('mousemove', onMouseMove);
      document.addEventListener('mouseup', onMouseUp);
    },
    openItem(key) {
　　　　//跳转逻辑
      //this.$emit('openItem',key)
    },
  },
};
</script>

<style scoped>
  .draggable {
    z-index: 9999999;
    width: 100px;
    height: 100px;
    cursor: grab;
    user-select: none;
  }

  i {
    font-style: normal;
  }

  h1,
  h2,
  h3,
  h4 {
    margin: 0;
    margin-top: 10px;
    margin-bottom: 10px;
  }

  h1 {
    font-size: 3em;
  }

  .menu-item {
    position: absolute;
    top: 20px;
    width: 4em;
    height: 4em;
    padding-top: 4px;
    color: white;
    font-size: 14px;
    text-align: center;
    background: #585247;
    background-image: url('@/assets/images/yuan.png');

    /* width: 80px; */

    /* height: 80px; */
    border: 0.5em solid #4956bd;

    /* background: #e91e63; */
    border-radius: 100%;
    transform: translate3d(0, 0, 0);
    visibility: hidden;
    cursor: pointer;
    opacity: 0;
    transition: opacity 1s;
  }

  .menu-open-button {
    position: absolute;

    /* top: 20px; */
    width: 3em;
    height: 3em;
    color: white;
    text-align: center;
    background: #585247;
    background-image: url('@/assets/images/yuan.png');
    background-size: cover;

    /* width: 80px; */

    /* height: 80px; */
    border: 0.5em solid #4956bd;

    /* background: #e91e63; */
    border-radius: 100%;
    transform: translate3d(0, 0, 0);
    opacity: 0.3;
    transition: transform ease-out 200ms;
  }

  .menu-open {
    display: none;
  }

  .hamburger {
    position: absolute;
    top: 50%;
    left: 60%;
    display: block;
    width: 18px;
    height: 3px;
    margin-top: -1.5px;
    margin-left: -12.5px;
    background: white;
    transition: transform 200ms;
  }

  .hamburger-1 {
    transform: translate3d(0, -8px, 0);
  }

  .hamburger-2 {
    transform: translate3d(0, 0, 0);
  }

  .hamburger-3 {
    transform: translate3d(0, 8px, 0);
  }

  .hover-area {
    width: 10px;
    height: 10px;
    background-color: transparent;
    border-radius: 50px;
  }

  .hover-area:hover {
    width: 100px;
    height: 200px;
  }

  .menu {
    position: absolute;
    top: 50%;
    left: 50%;
    box-sizing: border-box;
    width: 3em;
    height: 3em;

    /* margin-left: -190px; */

    /* padding-top: 20px; */

    /* padding-left: 190px; */
    font-size: 20px;
    text-align: left;
  }

  .menu-item:hover {
    opacity: 0.9;
  }

  .menu-item:nth-child(3) {
    transition-duration: 180ms;
  }

  .menu-item:nth-child(4) {
    transition-duration: 180ms;
  }

  .menu-item:nth-child(5) {
    transition-duration: 180ms;
  }

  .menu-item:nth-child(6) {
    transition-duration: 180ms;
  }

  .menu-open-button {
    z-index: 2;
    transform: scale(1.1, 1.1) translate3d(0, 0, 0);
    cursor: pointer;
    transition-timing-function: cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transition-duration: 400ms;
  }

  .hover-area .menu {
    transform: rotate(0deg);
    transition: all 0.8s;
  }

  .hover-area:hover .menu {
    transform: rotate(-90deg);
  }

  .menu-open-button:hover {
    transform: scale(1.2, 1.2) translate3d(0, 0, 0);
    opacity: 0.9;
  }

  .hover-area:hover .menu-open-button {
    transform: scale(0.8, 0.8) translate3d(0, 0, 0);
    opacity: 0.9;
    transition-timing-function: linear;
    transition-duration: 200ms;
  }

  .hover-area:hover .menu-item {
    visibility: visible;
    opacity: 1;

    /* transition-timing-function: cubic-bezier(0.935, 0, 0.34, 1.33); */
  }

  .hover-area .menu-item:nth-child(3) {
    transform: translate3d(67.96994px, -19.33095px, 0) rotate(90deg);
    transition-duration: 1s;
  }

  .hover-area .menu-item:nth-child(4) {
    transform: translate3d(33.96994px, -75.33095px, 0) rotate(90deg);
    transition-duration: 1s;
  }

  .hover-area .menu-item:nth-child(5) {
    /* top: -2.8em; */

    /* left: 5em; */
    transform: translate3d(-31.91639px, -75.00003px, 0) rotate(90deg);
    transition-duration: 1.2s;
  }

  .hover-area .menu-item:nth-child(6) {
    transform: translate3d(-64.13709px, -17.37936px, 0) rotate(90deg);
    transition-duration: 1.5s;
  }
</style>

vue3+ts版本 css跟上面通用

<template>
  <div ref="draggable" class="draggable" @mousedown="onMouseDown">
    <div class="hover-area">
      <nav class="menu">
        <input
          id="menu-open"
          type="checkbox"
          class="menu-open"
          name="menu-open"
        />
        <label class="menu-open-button" for="menu-open">
          <span class="hamburger hamburger-1"></span>
          <span class="hamburger hamburger-2"></span>
          <span class="hamburger hamburger-3"></span>
        </label>

        <a class="menu-item" @click="openItem('1')">
          <i class="fa fa-heart"></i> 模拟 <br />收入</a
        >

        <a class="menu-item" @click="openItem('2')">
          <i class="fa fa-envelope"></i> 我的<br />公告</a
        >
        <a class="menu-item" @click="openItem('3')">
          <i class="fa fa-ellipsis-h"></i> 我的<br />舆情</a
        >

        <a class="menu-item" @click="openItem('4')">
          <i class="fa fa-cog"></i>监控<br />设置
        </a>
      </nav>
    </div>
  </div>
</template>

<script lang="ts">
  import { defineComponent, onMounted, ref } from 'vue'

  export default defineComponent({
    setup() {
      const draggable = ref<HTMLDivElement | null>(null)

      const onMouseDown = (event: MouseEvent) => {
        const element = draggable.value
        if (!element) return

        const rect = element.getBoundingClientRect()
        const offsetX = event.clientX - rect.left
        const offsetY = event.clientY - rect.top

        const onMouseMove = (moveEvent: MouseEvent) => {
          // 解决onmouseup事件有时候不触发
          if (moveEvent.stopPropagation) {
            moveEvent.stopPropagation()
          }
          if (moveEvent.preventDefault) {
            moveEvent.preventDefault()
          }
          // element.style.pointerEvents = 'none'
          const newLeft = moveEvent.clientX - offsetX
          const newTop = moveEvent.clientY - offsetY

          // 获取视口边界
          const viewportWidth = document.documentElement.clientWidth
          const viewportHeight = document.documentElement.clientHeight

          // 获取元素的尺寸
          const elementWidth = element.offsetWidth
          const elementHeight = element.offsetHeight + 100

          // 检查边界，确保div不超出视口
          const boundedLeft = Math.max(
            0,
            Math.min(newLeft, viewportWidth - elementWidth)
          )
          const boundedTop = Math.max(
            0,
            Math.min(newTop, viewportHeight - elementHeight)
          )

          element.style.left = `${boundedLeft}px`
          element.style.top = `${boundedTop}px`
        }

        const onMouseUp = () => {
          document.removeEventListener('mousemove', onMouseMove)
          document.removeEventListener('mouseup', onMouseUp)
          // element.style.pointerEvents = ''
        }

        document.addEventListener('mousemove', onMouseMove)
        document.addEventListener('mouseup', onMouseUp)
      }

      onMounted(() => {
        const element = draggable.value
        if (element) {
          element.style.position = 'fixed'
          element.style.right = `50px`
          element.style.top = `${document.documentElement.clientHeight / 2}px`
        }
      })
      const openItem = (key: string) => {
　　　　//跳转逻辑
      }

      return {
        draggable,
        onMouseDown,
        openItem,
      }
    },
  })
</script>

 最终效果展示：

 鼠标滑过后：