text: import { debounce } from '@/utils/'
  
  export default {
    data() {
      return {
        $_sidebarElm: null
      }
    },
    mounted() {
      this.__resizeHandler = debounce(() => {
        if (this.chart) {
          this.chart.resize()
        }
      }, 100)
      window.addEventListener('resize', this.__resizeHandler)
  
      this.$_sidebarElm = document.getElementsByClassName('sidebar-container')[0]
      this.$_sidebarElm && this.$_sidebarElm.addEventListener('transitionend', this.$_sidebarResizeHandler)
    },
    beforeDestroy() {
      window.removeEventListener('resize', this.__resizeHandler)
  
      this.$_sidebarElm && this.$_sidebarElm.removeEventListener('transitionend', this.$_sidebarResizeHandler)
    },
    methods: {
      // use $_ for mixins properties
      // https://vuejs.org/v2/style-guide/index.html#Private-property-names-essential
      $_sidebarResizeHandler(e) {
        if (e.propertyName === 'width') {
          this.__resizeHandler()
        }
      }
    }
  }
  