RC #261 - Location markers

packages/core-data/package.json

@@ -21,6 +21,7 @@
     "@radix-ui/react-accordion": "^1.1.2",
     "@radix-ui/react-dialog": "^1.0.5",
     "@samvera/clover-iiif": "^2.3.2",
+    "@turf/turf": "^6.5.0",
     "i18next": "^23.8.2",
     "lucide-react": "^0.321.0",
     "react-instantsearch": "^7.5.4",
@@ -44,4 +45,4 @@
     "tailwindcss": "^3.4.1",
     "vite": "^5.1.4"
   }
-}
+}

packages/core-data/src/components/PlaceMarkers.js

@@ -0,0 +1,77 @@
+// @flow
+
+import { LocationMarkers } from '@performant-software/geospatial';
+import { feature, featureCollection } from '@turf/turf';
+import React, {
+  useCallback,
+  useEffect,
+  useMemo,
+  useState
+} from 'react';
+import _ from 'underscore';
+
+type Props = {
+  animate?: boolean,
+
+  /**
+   * The URL of the Core Data place record.
+   */
+  urls: Array<string>
+};
+
+/**
+ * This component renders a map marker for a given Core Data Place record.
+ */
+const PlaceMarkers = (props: Props) => {
+  const [places, setPlaces] = useState([]);
+
+  /**
+   * Converts the set of places into a FeatureCollection.
+   *
+   * @type {FeatureCollection<Geometry, Properties>}
+   */
+  const data = useMemo(() => featureCollection(places), [places]);
+
+  /**
+   * Fetches the passed URLs and converts the response to JSON.
+   *
+   * @type {function(): *}
+   */
+  const onFetch = useCallback(() => (
+    _.map(props.urls, (url) => fetch(url).then((res) => res.json()))
+  ), [props.urls]);
+
+  /**
+   * Converts the passed list of records to Features and sets them on the state.
+   *
+   * @type {function(*): *}
+   */
+  const onLoad = useCallback((records) => (
+    _.map(records, (record) => setPlaces((prevPlaces) => [
+      ...prevPlaces,
+      feature(record.geometry, record.properties)
+    ]))
+  ), []);
+
+  /**
+   * Fetch the place record from the passed URL.
+   */
+  useEffect(() => {
+    Promise
+      .all(onFetch())
+      .then(onLoad);
+  }, [onFetch, onLoad]);
+
+  if (_.isEmpty(data?.features)) {
+    return null;
+  }
+
+  return (
+    <LocationMarkers
+      animate={props.animate}
+      data={data}
+    />
+  );
+};
+
+export default PlaceMarkers;

packages/core-data/src/index.js

@@ -7,7 +7,7 @@ import './index.css';
 export { default as LoadAnimation } from './components/LoadAnimation';
 export { default as MediaGallery } from './components/MediaGallery';
 export { default as PlaceDetailsPanel } from './components/PlaceDetailsPanel';
-export { default as PlaceMarker } from './components/PlaceMarker';
+export { default as PlaceMarkers } from './components/PlaceMarkers';
 export { default as PlaceResultsList } from './components/PlaceResultsList';
 export { default as RelatedItemsList } from './components/RelatedItemsList';
 export { default as RelatedList } from './components/RelatedList';

packages/geospatial/src/components/LocationMarker.js → packages/geospatial/src/components/LocationMarkers.js

@@ -6,6 +6,11 @@ import { DEFAULT_FILL_STYLE, DEFAULT_POINT_STYLE, DEFAULT_STROKE_STYLE } from '.
 import MapUtils from '../utils/Map';
 
 type Props = {
+  /**
+   * If `true`, the point marker will display with a pulsing animation.
+   */
+  animate?: boolean,
+
   /**
    * The number of miles to buffer the GeoJSON data.
    */
@@ -37,7 +42,7 @@ const DEFAULT_BUFFER = 2;
 /**
  * This component renders a location marker to be used in a Peripleo context.
  */
-const LocationMarker = (props: Props) => {
+const LocationMarkers = (props: Props) => {
   const map = useMap();
 
   /**
@@ -52,12 +57,12 @@ const LocationMarker = (props: Props) => {
 
   return (
     <>
-      <PulsingMarkerLayer
-        id='current'
-        data={props.data}
-      />
+      { props.animate && (
+        <PulsingMarkerLayer
+          data={props.data}
+        />
+      )}
       <MixedGeoJSONLayer
-        id='current'
         data={props.data}
         fillStyle={props.fillStyle}
         strokeStyle={props.strokeStyle}
@@ -67,11 +72,11 @@ const LocationMarker = (props: Props) => {
   );
 };
 
-LocationMarker.defaultProps = {
+LocationMarkers.defaultProps = {
   buffer: DEFAULT_BUFFER,
   fillStyle: DEFAULT_FILL_STYLE,
   pointStyle: DEFAULT_POINT_STYLE,
   strokeStyle: DEFAULT_STROKE_STYLE
 };
 
-export default LocationMarker;
+export default LocationMarkers;

packages/geospatial/src/index.js

@@ -4,7 +4,7 @@
 export { default as DrawControl } from './components/DrawControl';
 export { default as GeoJsonLayer } from './components/GeoJsonLayer';
 export { default as LayerMenu } from './components/LayerMenu';
-export { default as LocationMarker } from './components/LocationMarker';
+export { default as LocationMarkers } from './components/LocationMarkers';
 export { default as MapControl } from './components/MapControl';
 export { default as MapDraw } from './components/MapDraw';
 export { default as RasterLayer } from './components/RasterLayer';

packages/storybook/.storybook/middleware.js

@@ -1,10 +1,11 @@
 // @flow
 
-const bodyParser = require('body-parser');
-const ControlledVocabulary = require('./routes/ControlledVocabulary');
-const dotenv = require('dotenv');
-const UserDefinedFields = require('./routes/UserDefinedFields');
-const ZoteroTranslate = require('./routes/ZoteroTranslate');
+import bodyParser from 'body-parser';
+import dotenv from 'dotenv';
+import ControlledVocabulary from './routes/ControlledVocabulary';
+import CoreData from './routes/CoreData';
+import UserDefinedFields from './routes/UserDefinedFields';
+import ZoteroTranslate from './routes/ZoteroTranslate';
 
 // Configure environment variables
 dotenv.config();
@@ -14,8 +15,9 @@ const expressMiddleWare = (router) => {
   router.use(bodyParser.json());
 
   ControlledVocabulary.addRoutes(router);
+  CoreData.addRoutes(router);
   UserDefinedFields.addRoutes(router);
   ZoteroTranslate.addRoutes(router);
 };
 
-module.exports = expressMiddleWare;
+export default expressMiddleWare;

packages/storybook/.storybook/routes/CoreData.js

@@ -0,0 +1,132 @@
+// @flow
+
+import { faker } from '@faker-js/faker';
+import _ from 'underscore';
+import StateBoundaries from '../../src/data/StateBoundaries.json';
+
+/**
+ * Returns the min/max latitude/longitude for the passed state. If no state is provided, we'll compute
+ * the boundary of all states.
+ *
+ * @param state
+ *
+ * @returns {{max_lat, min_lng, min_lat, max_lng}|*}
+ */
+const getBoundary = (state = null) => {
+  if (state) {
+    return StateBoundaries[state];
+  }
+
+  let minLatitude;
+  let maxLatitude;
+  let minLongitude;
+  let maxLongitude;
+
+  const keys = _.keys(StateBoundaries);
+  _.each(keys, (key) => {
+    const data = StateBoundaries[key];
+
+    if (!minLatitude || data.min_lat < minLatitude) {
+      minLatitude = data.min_lat;
+    }
+
+    if (!maxLatitude || data.max_lat > maxLatitude) {
+      maxLatitude = data.max_lat;
+    }
+
+    if (!minLongitude || data.min_lng < minLongitude) {
+      minLongitude = data.min_lng;
+    }
+
+    if (!maxLongitude || data.max_lng > maxLongitude) {
+      maxLongitude = data.max_lng;
+    }
+  });
+
+  return {
+    min_lat: minLatitude,
+    max_lat: maxLatitude,
+    min_lng: minLongitude,
+    max_lng: maxLongitude
+  };
+};
+
+/**
+ * Creates a sample place record in the Linked Places format.
+ *
+ * @returns {{
+ *  names: [{
+ *    toponym: string
+ *  }],
+ *  geometry: {
+ *    coordinates: number[],
+ *    type: string
+ *  },
+ *  '@id': string,
+ *  type: string,
+ *  properties: {
+ *    ccode: *[],
+ *    record_id: string,
+ *    title: string,
+ *    uuid: string
+ *  }
+ * }}
+ */
+const createPlace = () => {
+  const uuid = faker.string.uuid();
+  const title = faker.location.city();
+
+  const boundary = getBoundary();
+  const latitude = faker.location.latitude({ min: boundary.min_lat, max: boundary.max_lat });
+  const longitude = faker.location.longitude({ min: boundary.min_lng, max: boundary.max_lng });
+
+  return {
+    '@id': `https://example.com/${uuid}`,
+    type: 'Place',
+    properties: {
+      ccode: [],
+      record_id: faker.string.numeric(7),
+      title,
+      uuid
+    },
+    geometry: {
+      type: 'Point',
+      coordinates: [longitude, latitude]
+    },
+    names: [{
+      toponym: title
+    }]
+  };
+};
+
+/**
+ * Adds the `/core_data/places` and `/core_data/places/:id` routes.
+ *
+ * @param router
+ */
+const addRoutes = (router) => {
+  router.get('/core_data/places', (request, response) => {
+    const { query } = request;
+
+    let number = 1;
+    if (query.number) {
+      number = query.number;
+    }
+
+    const places = [];
+
+    _.times(number, () => places.push(createPlace()));
+
+    response.send(places);
+    response.end();
+  });
+
+  router.get('/core_data/places/:id', (request, response) => {
+    response.send(createPlace());
+    response.end();
+  });
+};
+
+export default {
+  addRoutes
+};