vue-cesium/es/components/primitive-collections/label-collection/index.mjs

Vue 3.x components for CesiumJS.

import { defineComponent, getCurrentInstance, watch, onUnmounted, h, createCommentVNode } from 'vue';
import '../../../composables/index.mjs';
import { cloneDeep, differenceBy } from 'lodash-unified';
import { modelMatrix, debugShowBoundingVolume, scene, blendOption, show, enableMouseEvent } from '../../../utils/cesium-props.mjs';
import { addCustomProperty, kebabCase } from '../../../utils/util.mjs';
import { hSlot } from '../../../utils/private/render.mjs';
import { primitiveCollectionEmits } from '../../../utils/emits.mjs';
import usePrimitiveCollections from '../../../composables/use-primitive-collections/index.mjs';

"use strict";
const labelCollectionProps = {
  ...modelMatrix,
  ...debugShowBoundingVolume,
  ...scene,
  ...blendOption,
  ...show,
  ...enableMouseEvent,
  labels: {
    type: Array,
    default: () => []
  }
};
var CollectionLabel = defineComponent({
  name: "VcCollectionLabel",
  props: labelCollectionProps,
  emits: primitiveCollectionEmits,
  setup(props, ctx) {
    var _a;
    const instance = getCurrentInstance();
    instance.cesiumClass = "LabelCollection";
    const primitiveCollectionsState = usePrimitiveCollections(props, ctx, instance);
    if (primitiveCollectionsState === void 0) {
      return;
    }
    instance.alreadyListening.push("labels");
    let unwatchFns = [];
    unwatchFns.push(
      watch(
        () => cloneDeep(props.labels),
        (newVal, oldVal) => {
          if (!instance.mounted) {
            return;
          }
          const labelCollection = instance.cesiumObject;
          if (newVal.length === oldVal.length) {
            const modifies = [];
            for (let i = 0; i < newVal.length; i++) {
              const options = newVal[i];
              const oldOptions = oldVal[i];
              if (JSON.stringify(options) !== JSON.stringify(oldOptions)) {
                modifies.push({
                  newOptions: options,
                  oldOptions
                });
              }
            }
            modifies.forEach((modify) => {
              const modifyLabel = labelCollection._labels.find((v) => v.id === modify.oldOptions.id);
              modifyLabel && Object.keys(modify.newOptions).forEach((prop) => {
                if (modify.oldOptions[prop] !== modify.newOptions[prop]) {
                  modifyLabel[prop] = primitiveCollectionsState.transformProp(prop, modify.newOptions[prop]);
                }
              });
            });
          } else {
            const addeds = differenceBy(newVal, oldVal, "id");
            const deletes = differenceBy(oldVal, newVal, "id");
            const deleteLabels = [];
            for (let i = 0; i < deletes.length; i++) {
              const deleteLabel = labelCollection._labels.find((v) => v.id === deletes[i].id);
              deleteLabel && deleteLabels.push(deleteLabel);
            }
            deleteLabels.forEach((v) => {
              labelCollection.remove(v);
            });
            addLabels(labelCollection, addeds);
          }
        },
        {
          deep: true
        }
      )
    );
    const addLabels = (labelCollection, labels) => {
      for (let i = 0; i < labels.length; i++) {
        const labelOptions = labels[i];
        labelOptions.id = Cesium.defined(labelOptions.id) ? labelOptions.id : Cesium.createGuid();
        const labelOptionsTransform = primitiveCollectionsState.transformProps(labelOptions);
        const label = labelCollection.add(labelOptionsTransform);
        addCustomProperty(label, labelOptionsTransform);
      }
    };
    instance.createCesiumObject = async () => {
      const options = primitiveCollectionsState.transformProps(props);
      const labelCollection = new Cesium.LabelCollection(options);
      addLabels(labelCollection, props.labels);
      return labelCollection;
    };
    onUnmounted(() => {
      unwatchFns.forEach((item) => item());
      unwatchFns = [];
    });
    const name = ((_a = instance.proxy) == null ? void 0 : _a.$options.name) || "";
    return () => ctx.slots.default ? h(
      "i",
      {
        class: kebabCase(name),
        style: { display: "none !important" }
      },
      hSlot(ctx.slots.default)
    ) : createCommentVNode(kebabCase(name));
  }
});

export { CollectionLabel as default, labelCollectionProps };
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