1 files changed, 143 insertions, 0 deletions
diff --git a/modern/src/map/core/Map.js b/modern/src/map/core/Map.js
new file mode 100644
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+++ b/modern/src/map/core/Map.js
@@ -0,0 +1,143 @@
+import 'maplibre-gl/dist/maplibre-gl.css';
+import '../switcher/switcher.css';
+import maplibregl from 'maplibre-gl';
+import React, {
+  useRef, useLayoutEffect, useEffect, useState,
+} from 'react';
+import { SwitcherControl } from '../switcher/switcher';
+import deviceCategories from '../../common/deviceCategories';
+import { prepareIcon, loadImage } from './mapUtil';
+import {
+  styleCarto, styleLocationIq, styleMapbox, styleMapTiler, styleOsm,
+} from './mapStyles';
+import { useAttributePreference } from '../../common/preferences';
+import palette from '../../theme/palette';
+import { useTranslation } from '../../LocalizationProvider';
+import usePersistedState, { savePersistedState } from '../../common/usePersistedState';
+
+const element = document.createElement('div');
+element.style.width = '100%';
+element.style.height = '100%';
+element.style.boxSizing = 'initial';
+
+export const map = new maplibregl.Map({
+  container: element,
+});
+
+let ready = false;
+const readyListeners = new Set();
+
+const addReadyListener = (listener) => {
+  readyListeners.add(listener);
+  listener(ready);
+};
+
+const removeReadyListener = (listener) => {
+  readyListeners.delete(listener);
+};
+
+const updateReadyValue = (value) => {
+  ready = value;
+  readyListeners.forEach((listener) => listener(value));
+};
+
+const initMap = async () => {
+  if (ready) return;
+  if (!map.hasImage('background')) {
+    const background = await loadImage('/images/background.svg');
+    map.addImage('background', await prepareIcon(background), {
+      pixelRatio: window.devicePixelRatio,
+    });
+    await Promise.all(deviceCategories.map(async (category) => {
+      const results = [];
+      ['positive', 'negative', 'neutral'].forEach((color) => {
+        results.push(loadImage(`/images/icon/${category}.svg`).then((icon) => {
+          map.addImage(`${category}-${color}`, prepareIcon(background, icon, palette.colors[color]), {
+            pixelRatio: window.devicePixelRatio,
+          });
+        }));
+      });
+      await Promise.all(results);
+    }));
+  }
+  updateReadyValue(true);
+};
+
+map.addControl(new maplibregl.NavigationControl({
+  showCompass: false,
+}));
+
+const switcher = new SwitcherControl(
+  () => updateReadyValue(false),
+  (layerId) => savePersistedState('mapLayer', layerId),
+  () => {
+    map.once('styledata', () => {
+      const waiting = () => {
+        if (!map.loaded()) {
+          setTimeout(waiting, 33);
+        } else {
+          initMap();
+        }
+      };
+      waiting();
+    });
+  },
+);
+
+map.addControl(switcher);
+
+const Map = ({ children }) => {
+  const containerEl = useRef(null);
+  const t = useTranslation();
+
+  const [mapReady, setMapReady] = useState(false);
+
+  const [defaultMapLayer] = usePersistedState('mapLayer', 'locationIqStreets');
+  const mapboxAccessToken = useAttributePreference('mapboxAccessToken');
+  const mapTilerKey = useAttributePreference('mapTilerKey');
+  const locationIqKey = useAttributePreference('locationIqKey', 'pk.0f147952a41c555a5b70614039fd148b');
+
+  useEffect(() => {
+    maplibregl.accessToken = mapboxAccessToken;
+  }, [mapboxAccessToken]);
+
+  useEffect(() => {
+    switcher.updateStyles([
+      { id: 'locationIqStreets', title: t('mapLocationIqStreets'), uri: styleLocationIq('streets', locationIqKey) },
+      { id: 'locationIqEarth', title: t('mapLocationIqEarth'), uri: styleLocationIq('earth', locationIqKey) },
+      { id: 'locationIqHybrid', title: t('mapLocationIqHybrid'), uri: styleLocationIq('hybrid', locationIqKey) },
+      { id: 'osm', title: t('mapOsm'), uri: styleOsm() },
+      { id: 'carto', title: t('mapCarto'), uri: styleCarto() },
+      { id: 'mapboxStreets', title: t('mapMapboxStreets'), uri: styleMapbox('streets-v11') },
+      { id: 'mapboxOutdoors', title: t('mapMapboxOutdoors'), uri: styleMapbox('outdoors-v11') },
+      { id: 'mapboxSatellite', title: t('mapMapboxSatellite'), uri: styleMapbox('satellite-v9') },
+      { id: 'mapTilerBasic', title: t('mapMapTilerBasic'), uri: styleMapTiler('basic', mapTilerKey) },
+      { id: 'mapTilerHybrid', title: t('mapMapTilerHybrid'), uri: styleMapTiler('hybrid', mapTilerKey) },
+    ], defaultMapLayer);
+  }, [t, locationIqKey, mapTilerKey, defaultMapLayer]);
+
+  useEffect(() => {
+    const listener = (ready) => setMapReady(ready);
+    addReadyListener(listener);
+    return () => {
+      removeReadyListener(listener);
+    };
+  }, []);
+
+  useLayoutEffect(() => {
+    const currentEl = containerEl.current;
+    currentEl.appendChild(element);
+    map.resize();
+    return () => {
+      currentEl.removeChild(element);
+    };
+  }, [containerEl]);
+
+  return (
+    <div style={{ width: '100%', height: '100%' }} ref={containerEl}>
+      {mapReady && children}
+    </div>
+  );
+};
+
+export default Map;