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src/components/barChart.vue 2.05 KB
813cafa3   liuqimichale   bar echarts
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  <template>
    <div :class="className" :style="{height:height,width:width}"></div>
  </template>
  
  <script>
  import echarts from 'echarts'
  
  require('echarts/theme/macarons') // echarts theme
  import {debounce} from '../utils/debounce'
  
  export default {
    name: 'barChart',
    props: {
      className: {
        type: String,
        default: 'chart'
      },
      width: {
        type: String,
        default: '100%'
      },
      height: {
        type: String,
        default: '350px'
      },
      autoResize: {
        type: Boolean,
        default: true
      },
      chartData: {
        type: Object,
        required: true
      }
    },
    data() {
      return {
        chart: null,
        sidebarElm: null
      }
    },
    watch: {
      chartData: {
        deep: true,
      }
    },
    mounted() {
      this.initChart()
      if (this.autoResize) {
        this.__resizeHandler = debounce(() => {
          if (this.chart) {
            this.chart.resize()
          }
        }, 100)
        window.addEventListener('resize', this.__resizeHandler)
      }
    },
    beforeDestroy() {
      if (!this.chart) {
        return
      }
      if (this.autoResize) {
        window.removeEventListener('resize', this.__resizeHandler)
      }
  
      this.chart.dispose()
      this.chart = null
    },
    methods: {
      setOptions({xData, yData} = {}) {
        this.chart.setOption({
          xAxis: {
            data: xData,
            boundaryGap: false,
            axisTick: {
              show: false
            }
          },
          grid: {
            left: 10,
            right: 10,
            bottom: 20,
            top: 30,
            containLabel: true
          },
          tooltip: {
            trigger: 'axis',
            axisPointer: {
              type: 'cross'
            },
            padding: [5, 10]
          },
          yAxis: {
            axisTick: {
              show: false
            }
          },
          legend: {
            data: ['expected', 'actual']
          },
          series: [{
            data: yData,
            type: 'bar'
          }]
        })
      },
      initChart() {
        this.chart = echarts.init(this.$el, 'macarons')
        this.setOptions(this.chartData)
      }
    }
  }
  </script>