设计一个上下拖动分割窗口_vue 分割面板组件 上下

一. 效果展示

二.自定义组件split-spane

<template>
  <div ref="splitPane" class="split-pane" :class="direction" :style="{ flexDirection: direction }">
    <div class="pane pane-one" :style="lengthType + ':' + paneLengthValue">
      <slot name="one" />
    </div>

    <div
      style="z-index: 2"
      class="pane-trigger"
      :style="lengthType + ':' + triggerLengthValue"
      @mousedown="handleMouseDown"
    />

    <div class="pane pane-two" style="z-index: 2;background-color: white">
      <slot name="two" />
    </div>
  </div>
</template>

<script>
export default {
  props: {
    direction: {
      type: String,
      default: 'row'
    },

    min: {
      type: Number,
      default: 10
    },

    max: {
      type: Number,
      default: 90
    },

    paneLengthPercent: {
      type: Number,
      default: 50
    },

    triggerLength: {
      type: Number,
      default: 10
    }
  },
  data() {
    return {
      triggerLeftOffset: 0 // 鼠标距滑动器左(顶)侧偏移量
    }
  },
  computed: {
    lengthType() {
      return this.direction === 'row' ? 'width' : 'height'
    },

    paneLengthValue() {
      return `calc(${this.paneLengthPercent}% - ${this.triggerLength / 2 + 'px'})`
    },

    triggerLengthValue() {
      return this.triggerLength + 'px'
    }
  },

  methods: {
    // 按下滑动器
    handleMouseDown(e) {
      document.addEventListener('mousemove', this.handleMouseMove)
      document.addEventListener('mouseup', this.handleMouseUp)

      if (this.direction === 'row') {
        this.triggerLeftOffset = e.pageX - e.srcElement.getBoundingClientRect().left
      } else {
        this.triggerLeftOffset = e.pageY - e.srcElement.getBoundingClientRect().top
      }
    },

    // 按下滑动器后移动鼠标
    handleMouseMove(e) {
      const clientRect = this.$refs.splitPane.getBoundingClientRect()
      let paneLengthPercent = 0

      if (this.direction === 'row') {
        const offset = e.pageX - clientRect.left - this.triggerLeftOffset + this.triggerLength / 2
        paneLengthPercent = (offset / clientRect.width) * 100
      } else {
        const offset = e.pageY - clientRect.top - this.triggerLeftOffset + this.triggerLength / 2
        paneLengthPercent = (offset / clientRect.height) * 100
      }

      if (paneLengthPercent < this.min) {
        paneLengthPercent = this.min
      }
      if (paneLengthPercent > this.max) {
        paneLengthPercent = this.max
      }

      this.$emit('update:paneLengthPercent', paneLengthPercent)
    },

    // 松开滑动器
    handleMouseUp() {
      document.removeEventListener('mousemove', this.handleMouseMove)
    }
  }
}
</script>

<style scoped lang="scss">
.split-pane {
  //background: palegreen;
  height: 100%;
  display: flex;
  &.row {
    .pane {
      height: 100%;
    }
    .pane-trigger {
      height: 100%;
      cursor: col-resize;
    }
  }
  &.column {
    .pane {
      width: 100%;
    }
    .pane-trigger {
      width: 100%;
      cursor: row-resize;
    }
  }
  .pane-one {
    //background: palevioletred;
  }
  .pane-trigger {
    user-select: none;
    background: rgba(241, 241, 241, 0.95);
  }
  .pane-two {
    flex: 1;
    //background: turquoise;
  }
}
</style>

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三.使用示例

<template>
  <div class="page" style="height: 800px">
    <SplitPane
      direction="column"
      :min="20"
      :max="80"
      :triggerLength="20"
      :paneLengthPercent.sync="paneLengthPercent">
      <template v-slot:one>
        <div>
          区域一
        </div>
      </template>

      <template v-slot:two>
        <div>
          区域二
        </div>
      </template>

    </SplitPane>
  </div>
</template>

<script>
import SplitPane from '@/views/quality/split-pane'
export default {
  name: 'Test',
  components: {
    SplitPane
  },
  data() {
    return {
      paneLengthPercent: 50
    }
  }
}
</script>

<style scoped lang="scss">
.page {
  height: 100%;
  padding: 10px;
  //background: #000;
}
</style>

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