skywalking-booster-ui/src/views/dashboard/related/topology/components/Graph.vue

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<template>
  <svg class="hierarchy-services-svg" :width="width" :height="height" @click="svgEvent" v-if="nodes.length">
    <g class="hierarchy-services-graph" :transform="`translate(${diff[0]}, ${diff[1]})`">
      <g
        class="topo-node"
        v-for="(n, index) in topologyLayout.nodes"
        :key="index"
        @mouseout="hideTip"
        @mouseover="showNodeTip($event, n)"
        @click="handleNodeClick($event, n)"
        @mousedown="startMoveNode($event, n)"
        @mouseup="stopMoveNode($event)"
      >
        <image width="36" height="36" :x="n.x - 15" :y="n.y - 18" :href="icons.CUBE" />
        <image width="28" height="25" :x="n.x - 14" :y="n.y - 43" :href="icons.LOCAL" style="opacity: 0.8" />
        <image
          width="12"
          height="12"
          :x="n.x - 6"
          :y="n.y - 38"
          :href="!n.layer || n.layer === `N/A` ? icons.MESH : icons[n.layer.toUpperCase().replace('-', '')]"
        />
        <text
          class="node-text"
          :x="n.x - (Math.min(n.name.length, 30) * 6) / 2 + 6"
          :y="n.y + n.width + 8"
          style="pointer-events: none"
        >
          {{ n.name.length > 30 ? `${n.name.substring(0, 30)}...` : n.name }}
        </text>
      </g>
      <g v-for="(l, index) in topologyLayout.calls" :key="index">
        <path
          class="topo-line"
          :d="`M${l.sourceX} ${l.sourceY} L${l.targetX} ${l.targetY}`"
          stroke="#97B0F8"
          marker-end="url(#arrow)"
        />
      </g>
      <g class="arrows">
        <defs v-for="(_, index) in topologyLayout.calls" :key="index">
          <marker
            id="arrow"
            markerUnits="strokeWidth"
            markerWidth="16"
            markerHeight="16"
            viewBox="0 0 12 12"
            refX="10"
            refY="6"
            orient="auto"
          >
            <path d="M2,2 L10,6 L2,10 L6,6 L2,2" fill="#97B0F8" />
          </marker>
        </defs>
      </g>
    </g>
  </svg>
  <div v-else class="hierarchy-services"> No Data</div>
</template>
<script lang="ts" setup>
  import type { PropType } from "vue";
  import { ref, computed, watch } from "vue";
  import * as d3 from "d3";
  import type { Node, Call } from "@/types/topology";
  import { useDashboardStore } from "@/store/modules/dashboard";
  import icons from "@/assets/img/icons";
  import { changeNode, computeHierarchyLevels, hierarchy } from "./utils/layout";
  import zoom from "@/views/dashboard/related/components/utils/zoom";

  /*global Nullable, defineProps */
  const props = defineProps({
    config: {
      type: Object as PropType<any>,
      default: () => ({}),
    },
    entity: {
      type: String,
      default: "",
    },
    nodes: {
      type: Array as PropType<Node[]>,
      default: () => [],
    },
    calls: {
      type: Array as PropType<Call[]>,
      default: () => [],
    },
    layerLevels: {
      type: Array as PropType<{ layer: string; level: number }[]>,
      default: () => [],
    },
  });
  const emits = defineEmits(["showNodeTip", "handleNodeClick", "hideTip", "getNodeMetrics"]);
  const dashboardStore = useDashboardStore();
  const height = ref<number>(100);
  const width = ref<number>(100);
  const svg = ref<Nullable<any>>(null);
  const graph = ref<Nullable<any>>(null);
  const topologyLayout = ref<any>({});
  const graphWidth = ref<number>(100);
  const graphHeight = ref<number>(100);
  const currentNode = ref<Nullable<Node>>(null);
  const diff = computed(() => [
    (width.value - graphWidth.value - 160) / 2,
    (height.value - graphHeight.value - 60) / 2,
  ]);
  const radius = 10;

  async function init() {
    const dom = document.querySelector(".hierarchy-related")?.getBoundingClientRect() || {
      height: 80,
      width: 0,
    };
    height.value = dom.height - 80;
    width.value = dom.width;
    svg.value = d3.select(".hierarchy-services-svg");
    graph.value = d3.select(".hierarchy-services-graph");
    emits("getNodeMetrics");
    draw();
    svg.value.call(zoom(d3, graph.value, diff.value));
  }

  function draw() {
    const levels = computeHierarchyLevels(props.nodes);
    topologyLayout.value = hierarchy(levels, props.calls, radius);
    graphWidth.value = topologyLayout.value.layout.width;
    graphHeight.value = topologyLayout.value.layout.height;
    const drag: any = d3.drag().on("drag", (d: { x: number; y: number }) => {
      topologyLayout.value.calls = changeNode(d, currentNode.value, topologyLayout.value, radius);
    });
    setTimeout(() => {
      d3.selectAll(".topo-node").call(drag);
    }, 1000);
  }

  function startMoveNode(event: MouseEvent, d: Node) {
    event.stopPropagation();
    currentNode.value = d;
  }
  function stopMoveNode(event: MouseEvent) {
    event.stopPropagation();
    currentNode.value = null;
    hideTip();
  }

  function showNodeTip(event: MouseEvent, data: Node) {
    emits("showNodeTip", event, data);
  }

  function hideTip() {
    emits("hideTip");
  }

  function handleNodeClick(event: MouseEvent, d: Node & { x: number; y: number }) {
    event.stopPropagation();
    emits("handleNodeClick", event, d);
  }

  function svgEvent() {
    if (!props.config) {
      return;
    }
    dashboardStore.selectWidget(props.config);
  }

  watch(
    () => [...props.calls, ...props.nodes],
    () => {
      if (!props.nodes.length) {
        return;
      }
      if (!props.calls.length) {
        return;
      }
      setTimeout(() => {
        init();
      }, 10);
    },
  );
</script>
<style lang="scss" scoped>
  .hierarchy-services-topo {
    .node-text {
      fill: var(--sw-topology-color);
      font-size: 12px;
      opacity: 0.9;
      z-index: 1;
    }

    .hierarchy-services-svg {
      cursor: move;
      background-color: var(--el-bg-color);
    }

    .label {
      color: var(--sw-topology-color);
      display: inline-block;
      margin-right: 5px;
    }

    .topo-line {
      stroke-linecap: round;
      stroke-width: 1px;
      stroke-dasharray: 10 10;
      fill: none;
      animation: var(--sw-topo-animation);
    }

    .topo-line-anchor,
    .topo-node {
      cursor: pointer;
    }
  }

  .hierarchy-services {
    align-items: center;
    display: flex;
    justify-content: center;
    height: 100%;
  }
</style>