feat: add feature group component

<script>

import { onMounted, ref, inject, nextTick } from "vue";

import { remapEvents, propsBinder } from "../utils.js";

import { props, setup as featureGroupSetup } from "../functions/featureGroup";

import { render } from "../functions/layer";

export default {

  props,

  setup(props, context) {

    const leafletRef = ref({});

    const ready = ref(false);

    const addLayer = inject("addLayer");

    const { methods, options } = featureGroupSetup(props, leafletRef);

    onMounted(async () => {

      const { featureGroup, DomEvent } = await import(

        "leaflet/dist/leaflet-src.esm"

      );

      leafletRef.value = featureGroup(options);

      const listeners = remapEvents(context.attrs);

      DomEvent.on(leafletRef.value, listeners);

      propsBinder(methods, leafletRef.value, props);

      addLayer({

        ...props,

        ...methods,

        leafletObject: leafletRef.value,

      });

      ready.value = true;

      nextTick(() => context.emit("ready", leafletRef.value));

    });

    return { ready, leafletObject: leafletRef };

  },

  render() {

    return render(this.ready, this.$slots);

  },

};

</script>

export { default as LControlLayers } from "./LControlLayers.vue";

export { default as LControlScale } from "./LControlScale.vue";

export { default as LControlZoom } from "./LControlZoom.vue";

export { default as LFeatureGroup } from "./LFeatureGroup.vue";

export { default as LGeoJson } from "./LGeoJson.vue";

export { default as LIcon } from "./LIcon.vue";

export { default as LLayerGroup } from "./LLayerGroup.vue";

import {

  props as layerGroupProps,

  setup as layerGroupSetup,

} from "./layerGroup";

export const props = {

  ...layerGroupProps,

};

export const setup = (props, leafletRef) => {

  const { options: layerOptions, methods: layerGroupMethods } = layerGroupSetup(

    props,

    leafletRef

  );

  const options = {

    ...layerOptions,

    ...props,

  };

  const methods = {

    ...layerGroupMethods,

  };

  return { options, methods };

};