VUE 实现 Studio 管理后台（一）：鼠标拖放改变窗口大小

.vular-studio .x-handle{
  width: 3px;
  cursor: w-resize;
  z-index: 10;
}

.vular-studio .y-handle{
  height: 3px;
  cursor: s-resize;
  z-index: 10;
}
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<template>
  <div class="bottom-area" :style="{height:height + 'px'}">
    <YHandle @heightChange="heightChange"></YHandle>
    <div class="bottom-inner">
      <slot></slot>
    </div>
  </div>
</template>

<script>
import YHandle from './YHandle.vue'
export default {
  name: 'BottomArea',
  components:{
    YHandle,
  },
  data () {
    return {
      height:220,
    }
  },
  methods: {
    heightChange(movement){
      this.height += movement
      if(this.height < 30){
        this.height = 30
      }
      if(this.height > 600){
        this.height = 600
      }
    },
  },
}
</script>
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<template>
  <div class="y-handle" 
    @mousedown="mouseDown" 
  ></div>
</template>

<script>
export default {
  name: 'YHandle',
  data () {
    return {
      lastY:''
    }
  },

  created () {
    document.addEventListener('mouseup', this.mouseUp)
  },

  destroyed() {
    document.removeEventListener('mouseup', this.mouseUp)
  },


  methods: {
    mouseDown(event){
      document.addEventListener('mousemove', this.mouseMove)
      this.lastY = event.screenY
    },
    mouseMove(event){
      console.log('move')
      this.$emit('heightChange', this.lastY - event.screenY)
      this.lastY = event.screenY
    },
    mouseUp(event){
      this.lastY = ''
      document.removeEventListener('mousemove', this.mouseMove)
    },
  },
}
</script>
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