Implement geocoding search

modern/.npmrc

@@ -0,0 +1 @@
+legacy-peer-deps=true

modern/package.json

@@ -6,6 +6,7 @@
     "@emotion/react": "^11.9.0",
     "@emotion/styled": "^11.8.1",
     "@mapbox/mapbox-gl-draw": "^1.3.0",
+    "@maplibre/maplibre-gl-geocoder": "^1.3.1",
     "@mui/icons-material": "^5.8.0",
     "@mui/lab": "^5.0.0-alpha.82",
     "@mui/material": "^5.8.0",

modern/src/main/MainPage.js

@@ -34,6 +34,7 @@ import { useDeviceReadonly } from '../common/util/permissions';
 import MapPositions from '../map/MapPositions';
 import MapDirection from '../map/MapDirection';
 import MapOverlay from '../map/overlay/MapOverlay';
+import MapGeocoder from '../map/geocoder/MapGeocoder';
 
 const useStyles = makeStyles((theme) => ({
   root: {
@@ -213,6 +214,7 @@ const MainPage = () => {
         <PoiMap />
       </MapView>
       <MapCurrentLocation />
+      <MapGeocoder />
       {desktop && <MapPadding left={parseInt(theme.dimensions.drawerWidthDesktop, 10)} />}
       <Button
         variant="contained"

modern/src/map/geocoder/MapGeocoder.js

@@ -0,0 +1,56 @@
+import './geocoder.css';
+import maplibregl from 'maplibre-gl';
+import MaplibreGeocoder from '@maplibre/maplibre-gl-geocoder';
+import { useEffect } from 'react';
+import { useDispatch } from 'react-redux';
+import { map } from '../core/MapView';
+import { errorsActions } from '../../store';
+
+const MapGeocoder = () => {
+  const dispatch = useDispatch();
+
+  useEffect(() => {
+    const geocoder = {
+      forwardGeocode: async (config) => {
+        const features = [];
+        try {
+          const request = `https://nominatim.openstreetmap.org/search?q=${config.query}&format=geojson&polygon_geojson=1&addressdetails=1`;
+          const response = await fetch(request);
+          const geojson = await response.json();
+          geojson.features.forEach((feature) => {
+            const center = [
+              feature.bbox[0] + (feature.bbox[2] - feature.bbox[0]) / 2,
+              feature.bbox[1] + (feature.bbox[3] - feature.bbox[1]) / 2,
+            ];
+            features.push({
+              type: 'Feature',
+              geometry: {
+                type: 'Point',
+                coordinates: center,
+              },
+              place_name: feature.properties.display_name,
+              properties: feature.properties,
+              text: feature.properties.display_name,
+              place_type: ['place'],
+              center,
+            });
+          });
+        } catch (e) {
+          dispatch(errorsActions.push(e.message));
+        }
+        return { features };
+      },
+    };
+
+    const control = new MaplibreGeocoder(geocoder, {
+      maplibregl,
+      collapsed: true,
+    });
+    map.addControl(control);
+    return () => map.removeControl(control);
+  }, [dispatch]);
+
+  return null;
+};
+
+export default MapGeocoder;

modern/src/map/geocoder/geocoder.css

@@ -0,0 +1,223 @@
+/* Basics */
+.maplibregl-ctrl-geocoder,
+.maplibregl-ctrl-geocoder *,
+.maplibregl-ctrl-geocoder *:after,
+.maplibregl-ctrl-geocoder *:before {
+  box-sizing: border-box;
+}
+
+.maplibregl-ctrl-geocoder {
+  font-size: 15px;
+  line-height: 20px;
+  font-family: "Open Sans", "Helvetica Neue", Arial, Helvetica, sans-serif;
+  position: relative;
+  background-color: #fff;
+  width: 100%;
+  min-width: 240px;
+  max-width: 360px;
+  z-index: 1;
+  border-radius: 4px;
+  transition: width 0.25s, min-width 0.25s;
+}
+
+.maplibregl-ctrl-geocoder--input {
+  font: inherit;
+  width: 100%;
+  border: 0;
+  background-color: transparent;
+  margin: 0;
+  height: 29px;
+  color: #404040; /* fallback */
+  color: rgba(0, 0, 0, 0.75);
+  padding: 6px 30px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  overflow: hidden;
+}
+
+.maplibregl-ctrl-geocoder--input:focus {
+  color: #404040; /* fallback */
+  color: rgba(0, 0, 0, 0.75);
+  outline: 0;
+  box-shadow: none;
+  outline: thin dotted;
+}
+
+.maplibregl-ctrl-geocoder .maplibregl-ctrl-geocoder--pin-right > * {
+  z-index: 2;
+  position: absolute;
+  right: 5px;
+  top: 5px;
+  display: none;
+}
+
+.maplibregl-ctrl-geocoder,
+.maplibregl-ctrl-geocoder .suggestions {
+  box-shadow: 0 0 0 2px rgb(0 0 0 / 10%);
+}
+
+/* Collapsed */
+.maplibregl-ctrl-geocoder.maplibregl-ctrl-geocoder--collapsed {
+  width: 29px;
+  min-width: 29px;
+  transition: width 0.25s, min-width 0.25s;
+}
+
+/* Suggestions */
+.maplibregl-ctrl-geocoder .suggestions {
+  background-color: #fff;
+  border-radius: 4px;
+  left: 0;
+  list-style: none;
+  margin: 0;
+  padding: 0;
+  position: absolute;
+  width: 100%;
+  top: 110%; /* fallback */
+  top: calc(100% + 6px);
+  z-index: 1000;
+  overflow: hidden;
+  font-size: 13px;
+}
+
+.maplibregl-ctrl-bottom-left .suggestions,
+.maplibregl-ctrl-bottom-right .suggestions {
+  top: auto;
+  bottom: 100%;
+}
+
+.maplibregl-ctrl-geocoder .suggestions > li > a {
+  cursor: default;
+  display: block;
+  padding: 6px 12px;
+  color: #404040;
+}
+
+.maplibregl-ctrl-geocoder .suggestions > .active > a,
+.maplibregl-ctrl-geocoder .suggestions > li > a:hover {
+  color: #404040;
+  background-color: #f3f3f3;
+  text-decoration: none;
+  cursor: pointer;
+}
+
+.maplibregl-ctrl-geocoder--suggestion {
+  display: flex;
+  flex-direction: row;
+  align-items: center;
+}
+
+.maplibre-ctrl-geocoder--suggestion-icon {
+  min-width: 30px;
+  min-height: 24px;
+  max-width: 30px;
+  max-height: 24px;
+  padding-right: 12px;
+}
+
+.maplibregl-ctrl-geocoder--suggestion-info {
+  display: flex;
+  flex-direction: column;
+}
+
+.maplibregl-ctrl-geocoder--suggestion-match {
+  font-weight: bold;
+}
+
+.maplibregl-ctrl-geocoder--suggestion-title,
+.maplibregl-ctrl-geocoder--suggestion-address {
+  text-overflow: ellipsis;
+  overflow: hidden;
+  white-space: nowrap;
+}
+
+.maplibregl-ctrl-geocoder--result {
+  display: flex;
+  flex-direction: row;
+  align-items: center;
+}
+
+.maplibre-ctrl-geocoder--result-icon {
+  min-width: 30px;
+  min-height: 24px;
+  max-width: 30px;
+  max-height: 24px;
+  padding-right: 12px;
+}
+
+.maplibregl-ctrl-geocoder--result-title {
+  font-weight: bold;
+}
+
+.maplibregl-ctrl-geocoder--result-title,
+.maplibregl-ctrl-geocoder--result-address {
+  text-overflow: ellipsis;
+  overflow: hidden;
+  white-space: nowrap;
+}
+
+/* Icons */
+.maplibregl-ctrl-geocoder--icon {
+  display: inline-block;
+  vertical-align: middle;
+}
+
+.maplibregl-ctrl-geocoder--icon-search {
+  position: absolute;
+  top: 3px;
+  left: 3px;
+  width: 23px;
+  height: 23px;
+}
+
+.maplibregl-ctrl-geocoder--button {
+  padding: 0;
+  margin: 0;
+  border: none;
+  cursor: pointer;
+  background: #fff;
+  line-height: 1;
+}
+
+.maplibregl-ctrl-geocoder--icon-close {
+  width: 20px;
+  height: 20px;
+}
+
+.maplibregl-ctrl-geocoder--icon-loading {
+  width: 20px;
+  height: 20px;
+  -moz-animation: rotate 0.8s infinite cubic-bezier(0.45, 0.05, 0.55, 0.95);
+  -webkit-animation: rotate 0.8s infinite cubic-bezier(0.45, 0.05, 0.55, 0.95);
+  animation: rotate 0.8s infinite cubic-bezier(0.45, 0.05, 0.55, 0.95);
+}
+
+/* Animation */
+@-webkit-keyframes rotate {
+  from {
+    -webkit-transform: rotate(0);
+    transform: rotate(0);
+  }
+  to {
+    -webkit-transform: rotate(360deg);
+    transform: rotate(360deg);
+  }
+}
+
+@keyframes rotate {
+  from {
+    -webkit-transform: rotate(0);
+    transform: rotate(0);
+  }
+  to {
+    -webkit-transform: rotate(360deg);
+    transform: rotate(360deg);
+  }
+}
+
+.maplibre-gl-geocoder--error {
+  color: #909090;
+  padding: 6px 12px;
+  font-size: 16px;
+  text-align: center;
+}