142 lines
3.2 KiB
JavaScript
142 lines
3.2 KiB
JavaScript
var map = null;
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// A map that can be used to locate a single point by setting its location explicitly
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// or by allowing the user to move a marker.
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class MapLocator extends HTMLElement {
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constructor() {
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super();
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// Create a shadow DOM
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this.attachShadow({mode: "open" });
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// Initial render
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this.render();
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// markers shown on the map. Should be none or 1, generally.
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this._markers = [];
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}
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// Lifecycle: when element is added to the DOM
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connectedCallback() {
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// Initialize the map when the element is added to the DOM
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setTimeout(() => this._initializeMap(), 0);
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}
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disconnectedCallback() {
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if (this._map) {
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this._map.remove();
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}
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}
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_initializeMap() {
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console.log("Setting up the map...");
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const apiKey = this.getAttribute("api-key");
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const lat = Number(this.getAttribute('latitude') || 36.2);
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const lng = Number(this.getAttribute('longitude') || -119.2);
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const zoom = Number(this.getAttribute('zoom') || 15);
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mapboxgl.accessToken = apiKey;
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const mapElement = this.shadowRoot.querySelector("#map");
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this._map = new mapboxgl.Map({
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container: mapElement,
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center: {
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lat: lat,
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lng: lng,
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},
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style: 'mapbox://styles/mapbox/streets-v12', // style URL
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zoom: zoom,
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});
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/*
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map.addControl(new mapboxgl.GeolocateControl({
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positionOptions: {
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enableHighAccuracy: true
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},
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trackUserLocation: true,
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showUserHeading: true
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}));
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map.addControl(new mapboxgl.NavigationControl());
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*/
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this._map.on("load", () => {
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console.log("map loaded");
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this.dispatchEvent(new CustomEvent("load"), {
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bubbles: true,
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composed: true, // Allows event to cross shadow DOM boundary
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detail: {
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map: this
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}
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});
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});
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this._map.on("zoomend", (e) => {
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this.dispatchEvent(new CustomEvent("zoomend"), {
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bubbles: true,
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composed: true,
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detail: e,
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});
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});
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}
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// Initial render of component
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render() {
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this.shadowRoot.innerHTML = `
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<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.53.0/mapbox-gl.css' rel='stylesheet' />
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<style>
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.map-container {
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background-color: #e9ecef;
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border-radius: 10px;
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box-shadow: 0 4px 6px rgba(0,0,0,0.05);
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height: 500px;
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display: flex;
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align-items: center;
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justify-content: center;
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margin-top: 20px;
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}
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#map {
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height: 500px;
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width:100%;
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margin-bottom: 10px;
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}
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#map img {
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max-width: none;
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min-width: 0px;
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height: auto;
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}
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</style>
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<div id="map-container" class="map-container">
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<div id="map"></div>
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</div>
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`;
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}
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GetZoom() {
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return this._map.getZoom();
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}
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JumpTo(args) {
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this._map.jumpTo(args);
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}
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SetMarker(coords) {
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console.log("Setting map marker", coords);
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this._map.jumpTo({
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center: coords,
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zoom: 14,
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});
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this._markers.forEach((marker) => marker.remove());
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const marker = new mapboxgl.Marker({
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color: "#FF0000",
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draggable: true
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}).setLngLat(coords).addTo(this._map);
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marker.on('dragend', (e) => {
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const markerDraggedEvent = new CustomEvent("markerdragend", {
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detail: {
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marker: marker
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}
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});
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this.dispatchEvent(markerDraggedEvent);
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});
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this._markers = [marker];
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}
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}
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customElements.define('map-locator', MapLocator);
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