Refactor map implementation

1 files changed, 81 insertions, 0 deletions

diff --git a/modern/src/map/Map.js b/modern/src/map/Map.js
new file mode 100644
index 0000000..fec8d50
--- /dev/null
+++ b/modern/src/map/Map.js
@@ -0,0 +1,81 @@
+import 'mapbox-gl/dist/mapbox-gl.css';
+import mapboxgl from 'mapbox-gl';
+import React, { useRef, useLayoutEffect, useEffect, useState } from 'react';
+import { deviceCategories } from '../common/deviceCategories';
+import { loadIcon, loadImage } from './mapUtil';
+
+const element = document.createElement('div');
+element.style.width = '100%';
+element.style.height = '100%';
+
+export const map = new mapboxgl.Map({
+  container: element,
+  style: {
+    version: 8,
+    sources: {
+      osm: {
+        type: 'raster',
+        tiles: ["https://tile.openstreetmap.org/{z}/{x}/{y}.png"],
+        tileSize: 256,
+        attribution: '© <a target="_top" rel="noopener" href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
+      },
+    },
+    glyphs: 'https://cdn.traccar.com/map/fonts/{fontstack}/{range}.pbf',
+    layers: [{
+      id: 'osm',
+      type: 'raster',
+      source: 'osm',
+    }],
+  },
+});
+
+map.addControl(new mapboxgl.NavigationControl());
+
+let readyListeners = [];
+
+const onMapReady = listener => {
+  if (!readyListeners) {
+    listener();
+  } else {
+    readyListeners.push(listener);
+  }
+};
+
+map.on('load', async () => {
+  const background = await loadImage('images/background.svg');
+  await Promise.all(deviceCategories.map(async category => {
+    const imageData = await loadIcon(category, background, `images/icon/${category}.svg`);
+    map.addImage(category, imageData, { pixelRatio: window.devicePixelRatio });
+  }));
+  if (readyListeners) {
+    readyListeners.forEach(listener => listener());
+    readyListeners = null;
+  }
+});
+
+const Map = ({ children }) => {
+  const containerEl = useRef(null);
+
+  const [mapReady, setMapReady] = useState(false);
+  
+  useEffect(() => onMapReady(() => setMapReady(true)), []);
+
+  useLayoutEffect(() => {
+    const currentEl = containerEl.current;
+    currentEl.appendChild(element);
+    if (map) {
+      map.resize();
+    }
+    return () => {
+      currentEl.removeChild(element);
+    };
+  }, [containerEl]);
+
+  return (
+    <div style={{ width: '100%', height: '100%' }} ref={containerEl}>
+      {mapReady && children}
+    </div>
+  );
+};
+
+export default Map;