vue封装echarts-010

<template lang="html">
<div class="chart chart-trend">

<div ref="chartTrend"></div>

</div>
</template>

<script>
import * as chart from 'assets/js/echart-config';
export default {
props: {

sourceInfo: {
  type: Object,
  required: true,
  default: () => {
    return []
  }
},
chartTitle: {
  type: String,
  required: false,
  default: '分数趋势'
}

},
data() {

return {
}

},
computed: {

chartDom() {
  return echarts.init(this.$refs.chartTrend);
},
optionDom() {
  const option = chart.trendOption(this.sourceInfo, this.chartTitle);
  return option;
}

},
watch: {

sourceInfo: {
  handler(cates) {
    this.hideLoading();
    if ( cates && cates.trend_active ) {
      this.doRender();
    } else {
      this.chartDom.setOption(chart.emptyOption(this.chartTitle), true);
    }
  },
  deep: true
}

},
methods: {

doRender() {
  this.chartDom.setOption(this.optionDom, true);
},
resize() {
  this.chartDom.resize();
},
showLoading() {
  this.chartDom.showLoading({
    text: '',
    color: '#3988ff',
    textColor: '#000',
    maskColor: 'rgba(255, 255, 255, 0)',
    zlevel: 0
  });
},
hideLoading() {
  this.chartDom.hideLoading();
}

},
mounted() {

this.chartDom.resize(400, 400);
this.showLoading();
window.addEventListener('resize', this.resize);

},
destroyed() {

window.removeEventListener('resize', this.resize);

}
}
</script>

<style lang="scss">
</style>