【开发记录】vue3封装一个echarts轮播动画hooks

vue3封装一个echarts轮播动画hooks，记录一下

export const useChartAnimation = (vChartRef: typeof VChart, option: any) => {
  let isLoad = true; // 动画是否开启
  let index = -1;
  let timer = -1;
  // 鼠标移入关闭动画
  const handleAni = (chart: typeof VChart) => {
    chart.chart.on('mouseover', (param: any) => {
      isLoad = false;
      clearInterval(timer);
      //取消之前高亮图形
      chart.dispatchAction({
        type: 'downplay',
        seriesIndex: 0,
        dataIndex: index,
      });

      index = param.dataIndex;

      //高亮当前图形
      chart.dispatchAction({
        type: 'highlight',
        seriesIndex: 0,
        dataIndex: param.dataIndex,
      });
      //显示tooltip
      chart.dispatchAction({
        type: 'showTip',
        seriesIndex: 0,
        dataIndex: param.dataIndex,
      });
    });
  };
  // 自动高亮
  const autoAni = (chart: typeof VChart) => {
    let dataLen = computed(() => {
      return option.value.dataset.source.length;
    });
    // 取消之前高亮的图形
    chart?.dispatchAction({
      type: 'downplay',
      seriesIndex: 0,
      dataIndex: index,
    });
    index = (index + 1) % dataLen.value;

    // 高亮当前图形
    chart.dispatchAction({
      type: 'highlight',
      seriesIndex: 0,
      dataIndex: index,
    });
    // 显示 tooltip
    chart.dispatchAction({
      type: 'showTip',
      seriesIndex: 0,
      dataIndex: index,
    });
  };
  // 鼠标移出打开动画
  const removeAni = (chart: typeof VChart) => {
    chart.chart.on('mouseout', () => {
      if (!isLoad) {
        timer = setInterval(() => {
          autoAni(chart);
        }, 2000);
        isLoad = true;
      }
    });
  };

  //   初始化
  const initEchart = (chart: typeof VChart) => {
    if (!isPreview()) return;
    handleAni(chart);
    removeAni(chart);
    timer = setInterval(() => {
      autoAni(chart);
    }, 2000);
  };
  //   组件卸载清除定时器和事件
  const dispose = (chart: typeof VChart) => {
    chart.chart.off('mouseout');
    chart.chart.off('mouseover');
    clearInterval(timer);
  };

  onMounted(() => {
    if (vChartRef.value) initEchart(vChartRef.value);
  });
  onBeforeMount(() => {
    if (vChartRef.value) dispose(vChartRef.value);
  });
};