skywalking-booster-ui/src/components/Graph.vue

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contributor license agreements.  See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
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  http://www.apache.org/licenses/LICENSE-2.0

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<template>
  <div class="chart" ref="chartRef" :style="`height:${height};width:${width};`">
    <div v-if="!available" class="no-data">No Data</div>
  </div>
</template>
<script lang="ts" setup>
import {
  watch,
  ref,
  Ref,
  onMounted,
  onBeforeUnmount,
  unref,
  computed,
} from "vue";
import type { PropType } from "vue";
import { useECharts } from "@/hooks/useEcharts";
import { addResizeListener, removeResizeListener } from "@/utils/event";

/*global Nullable, defineProps, defineEmits*/
const emits = defineEmits(["select"]);
const chartRef = ref<Nullable<HTMLDivElement>>(null);
const { setOptions, resize, getInstance } = useECharts(
  chartRef as Ref<HTMLDivElement>
);
const props = defineProps({
  height: { type: String, default: "100%" },
  width: { type: String, default: "100%" },
  option: {
    type: Object as PropType<{ [key: string]: any }>,
    default: () => ({}),
  },
  filters: {
    type: Object as PropType<{
      duration: {
        startTime: string;
        endTime: string;
      };
      isRange: boolean;
      dataIndex?: number;
      sourceId: string;
    }>,
  },
});
const available = computed(
  () =>
    (Array.isArray(props.option.series) &&
      props.option.series[0] &&
      props.option.series[0].data) ||
    (Array.isArray(props.option.series.data) && props.option.series.data[0])
);
onMounted(async () => {
  await setOptions(props.option);
  chartRef.value && addResizeListener(unref(chartRef), resize);
  setTimeout(() => {
    const instance = getInstance();

    if (!instance) {
      return;
    }
    instance.on("click", (params: unknown) => {
      emits("select", params);
    });
    document.addEventListener(
      "click",
      () => {
        if (instance.isDisposed()) {
          return;
        }
        instance.dispatchAction({
          type: "hideTip",
        });
        instance.dispatchAction({
          type: "updateAxisPointer",
          currTrigger: "leave",
        });
      },
      true
    );
  }, 1000);
});

function updateOptions() {
  const instance = getInstance();
  if (!instance) {
    return;
  }
  if (props.filters) {
    if (props.filters.isRange) {
      if (!props.filters.duration.startTime) {
        setOptions(props.option);
        return;
      }
      const list = props.option.series[0].data.map(
        (d: (number | string)[]) => d[0]
      );
      if (!list.includes(props.filters.duration.endTime)) {
        return;
      }
      const markArea = {
        silent: true,
        itemStyle: {
          opacity: 0.3,
        },
        data: [
          [
            {
              xAxis: props.filters.duration.startTime,
            },
            {
              xAxis: props.filters.duration.endTime,
            },
          ],
        ],
      };
      const series = (window as any).structuredClone(props.option.series);
      for (const [key, temp] of series.entries()) {
        if (key === 0) {
          temp.markArea = markArea;
        }
      }
      const options = {
        ...props.option,
        series,
      };
      if (JSON.stringify(options) === JSON.stringify(props.option)) {
        return;
      }
      setOptions(options);
      return;
    }
    instance.dispatchAction({
      type: "showTip",
      dataIndex: props.filters.dataIndex,
      seriesIndex: 0,
    });
  }
}

watch(
  () => props.option,
  (newVal, oldVal) => {
    if (!available.value) {
      return;
    }
    if (JSON.stringify(newVal) === JSON.stringify(oldVal)) {
      return;
    }
    setOptions(newVal);
  }
);
watch(
  () => props.filters,
  () => {
    updateOptions();
  }
);

onBeforeUnmount(() => {
  removeResizeListener(unref(chartRef), resize);
});
</script>
<style lang="scss" scoped>
.no-data {
  font-size: 12px;
  height: 100%;
  box-sizing: border-box;
  display: -webkit-box;
  -webkit-box-orient: horizontal;
  -webkit-box-pack: center;
  -webkit-box-align: center;
  color: #666;
}

.chart {
  overflow: hidden;
}
</style>