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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(the "License"); you may not use this file except in compliance with
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  http://www.apache.org/licenses/LICENSE-2.0

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distributed under the License is distributed on an "AS IS" BASIS,
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limitations under the License. -->
<template>
  <div class="chart" ref="chartRef" :style="`height:${height};width:${width};`">
    <div v-if="!available" class="no-data">No Data</div>
    <div class="menus" v-show="visMenus" ref="menus">
      <div class="tools" @click="associateMetrics">
        {{ t("associateMetrics") }}
      </div>
      <div
        class="tools"
        @click="viewTrace"
        v-if="props.relatedTrace && props.relatedTrace.enableRelate"
      >
        {{ t("viewTrace") }}
      </div>
    </div>
    <el-drawer
      v-model="showTrace"
      size="100%"
      :destroy-on-close="true"
      :before-close="() => (showTrace = false)"
      :append-to-body="true"
    >
      <Trace :data="traceOptions" />
    </el-drawer>
  </div>
</template>
<script lang="ts" setup>
import {
  watch,
  ref,
  Ref,
  onMounted,
  onBeforeUnmount,
  unref,
  computed,
} from "vue";
import type { PropType } from "vue";
import { useI18n } from "vue-i18n";
import { EventParams } from "@/types/app";
import { Filters, RelatedTrace } from "@/types/dashboard";
import { useECharts } from "@/hooks/useEcharts";
import { addResizeListener, removeResizeListener } from "@/utils/event";
import Trace from "@/views/dashboard/related/trace/Index.vue";
import associateProcessor from "@/hooks/useAssociateProcessor";

/*global Nullable, defineProps, defineEmits*/
const emits = defineEmits(["select"]);
const { t } = useI18n();
const chartRef = ref<Nullable<HTMLDivElement>>(null);
const menus = ref<Nullable<HTMLDivElement>>(null);
const visMenus = ref<boolean>(false);
const { setOptions, resize, getInstance } = useECharts(
  chartRef as Ref<HTMLDivElement>
);
const currentParams = ref<Nullable<EventParams>>(null);
const showTrace = ref<boolean>(false);
const traceOptions = ref<{ type: string; filters?: unknown }>({
  type: "Trace",
});
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<Filters>,
  },
  relatedTrace: {
    type: Object as PropType<RelatedTrace>,
  },
});
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);
  instanceEvent();
});

function instanceEvent() {
  setTimeout(() => {
    const instance = getInstance();

    if (!instance) {
      return;
    }
    instance.on("click", (params: EventParams) => {
      currentParams.value = params;
      if (!menus.value || !chartRef.value) {
        return;
      }
      visMenus.value = true;
      const w = chartRef.value.getBoundingClientRect().width || 0;
      if (w - params.event.offsetX > 125) {
        menus.value.style.left = params.event.offsetX + "px";
      } else {
        menus.value.style.left = params.event.offsetX - 125 + "px";
      }
      menus.value.style.top = params.event.offsetY + 5 + "px";
    });
    document.addEventListener(
      "click",
      () => {
        if (instance.isDisposed()) {
          return;
        }
        visMenus.value = false;
        instance.dispatchAction({
          type: "updateAxisPointer",
          currTrigger: "leave",
        });
      },
      true
    );
  }, 1000);
}

function associateMetrics() {
  emits("select", currentParams.value);
  visMenus.value = true;
  updateOptions();
}

function updateOptions() {
  const instance = getInstance();
  if (!instance) {
    return;
  }
  if (!props.filters) {
    return;
  }
  if (props.filters.isRange) {
    const { eventAssociate } = associateProcessor(props);
    const options = eventAssociate();
    setOptions(options || props.option);
  } else {
    instance.dispatchAction({
      type: "updateAxisPointer",
      dataIndex: props.filters.dataIndex,
      seriesIndex: 0,
    });
  }
}

function viewTrace() {
  const item = associateProcessor(props).traceFilters(currentParams.value);
  traceOptions.value = {
    ...traceOptions.value,
    filters: item,
  };
  showTrace.value = true;
  visMenus.value = true;
}

watch(
  () => props.option,
  (newVal, oldVal) => {
    if (!available.value) {
      return;
    }
    if (JSON.stringify(newVal) === JSON.stringify(oldVal)) {
      return;
    }
    let options;
    if (props.filters && props.filters.isRange) {
      const { eventAssociate } = associateProcessor(props);
      options = eventAssociate();
    }
    setOptions(options || props.option);
  }
);
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;
}

.menus {
  position: absolute;
  display: block;
  white-space: nowrap;
  z-index: 9999999;
  box-shadow: #ddd 1px 2px 10px;
  transition: all cubic-bezier(0.075, 0.82, 0.165, 1) linear;
  background-color: rgb(255, 255, 255);
  border-radius: 4px;
  color: rgb(51, 51, 51);
  padding: 5px;
}

.tools {
  padding: 5px;
  color: #999;
  cursor: pointer;

  &:hover {
    color: #409eff;
    background-color: #eee;
  }
}
</style>