vue+Ant Design进度条滑块与input联动

 需求:滑块进度与输入框为一致,默认值为80,最小不能小于30,最大为100

 子组件:

<template>
  <div class="progress-box">
    <div
      ref="slider"
      class="slider"
    >
      <div
        class="process"
        :style="{ width }"
      ></div>
      <div
        ref="trunk"
        class="thunk"
        :style="{ left }"
      >
        <div class="block"></div>
      </div>
    </div>
    <div>
      <a-input-number
        v-model="per"
        class="input-num"
        :min="inputMin"
        :max="inputMax"
        @change="handleChangeNum"
      />
    </div>
  </div>
</template>
<script>
export default {
  props: {
    sliderMin: { // 最小值
      type: Number,
      default: 0
    },
    sliderMax: { // 进度条最大值
      type: Number,
      default: 0
    },
    value: { // 对当前值进行双向绑定实时显示拖拽进度
      type: Number,
      default: 0
    },
    inputMin: {
      type: Number,
      default: 0
    },
    inputMax: {
      type: Number,
      default: 100
    }
  },
  data() {
    return {
      slider: null, // 滚动条DOM元素
      thunk: null, // 拖拽DOM元素
      per: Math.max(this.sliderMin, this.value) // 当前值
    }
  },
  computed: {
    // 设置一个百分比，提供计算slider进度宽度和trunk的left值
    scale() { // 百分比
      return this.per / this.sliderMax
    },
    width() {
      if (this.slider) { // 设置进度激活的宽度
        return (this.slider.offsetWidth * this.scale) + 'px'
      } else {
        return 0 + 'px'
      }
    },
    left() { // trunk left = slider进度width + trunk宽度/2
      if (this.slider) { // 设置圆点所在的位置
        return (this.slider.offsetWidth * this.scale) - this.thunk.offsetWidth / 2 + 'px'
      } else {
        return 0 + 'px'
      }
    }
  },
  // 渲染到页面的时候
  mounted() {
    this.slider = this.$refs.slider
    this.thunk = this.$refs.trunk
    // const _this = this
    this.thunk.onmousedown = e => {
      const width = parseInt(this.width)
      const disX = e.clientX
      document.onmousemove = draw => {
        // 拖拽的时候获取的新width
        const newWidth = (draw.clientX - disX + width)
        // 拖拽的时候得到新的百分比
        const scale = newWidth / this.slider.offsetWidth
        this.per = Math.ceil((this.sliderMax) * scale)// 对一个数进行上取整把小数转为整数(0.3=>30)
        this.per = Math.max(this.per, this.sliderMin)
        this.per = Math.min(this.per, this.sliderMax)
        this.$emit('input', this.per)
      }
      document.onmouseup = function() {
        document.onmousemove = document.onmouseup = null
      }
      return false
    }
  },
  methods: {
    handleChangeNum(e) {
      this.per = e
    }
  }
}
</script>
<style lang="scss" scoped>
.progress-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.clear:after {
  content: '';
  display: block;
  clear: both;
}
.slider {
  user-select: none;
  position: relative;
  width: calc(100% - 104px);
  height: 4px;
  background: #f5f5f5;
  border-radius: 5px;
  cursor: pointer;
  .process {
    position: absolute;
    left: 0;
    top: 0;
    width: 112px;
    height: 6px;
    border-radius: 5px;
    background: #3296fa;
  }
  .thunk {
    position: absolute;
    left: 100px;
    top: -5px;
    width: 14px;
    height: 14px;
  }
  .block {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid #3296fa;
    background: rgba(255, 255, 255, 1);
    transition: 0.2s all;
  }
}
</style>

父组件使用

  <div class="xk-control-item">
      <div class="xk-item-title">
          <span>相似度(≥)</span>
       </div>
       <div class="xk-item-value">
           <c-progress
            v-model="per"
            :sliderMin="30"
            :sliderMax="100"
            :inputMin='30'
              />
        </div>
   </div>

<script>
import CProgress from '@/components/CProgress'
export default {
  name: 'VisitorTrack',
  components: {
    CProgress
  },
  data() {
    return {
    }
  },
  computed: {
    per: {
      get() {
        return 80
      },
      set(val) {
        // console.log(val)
      }
    }
  },
  watch: {

  },
  methods: {

   
  }

}
</script>