// A test of maplibre-gl in a custom element class MapAdmin extends HTMLElement { constructor() { super(); // Create a shadow DOM this.attachShadow({ mode: "open" }); // Initial render this.render(); this._map = null; // markers shown on the map this._markers = []; } // Lifecycle: when element is added to the DOM connectedCallback() { // Initialize the map when the element is added to the DOM setTimeout(() => this._initializeMap(), 0); } disconnectedCallback() { if (this._map) { this._map.remove(); } } _initializeMap() { const centroid = JSON.parse(this.getAttribute("centroid")); const organization_id = this.getAttribute("organization-id"); const tegola = this.getAttribute("tegola"); const xmin = parseFloat(this.getAttribute("xmin")); const ymin = parseFloat(this.getAttribute("ymin")); const xmax = parseFloat(this.getAttribute("xmax")); const ymax = parseFloat(this.getAttribute("ymax")); const bounds = [ [xmin, ymin], [xmax, ymax], ]; const mapElement = this.shadowRoot.querySelector("#map"); this._map = new maplibregl.Map({ center: centroid.coordinates, container: mapElement, style: "https://tiles.stadiamaps.com/styles/alidade_smooth.json", // Style URL; see our documentation for more options }).fitBounds(bounds, { padding: { top: 10, bottom: 10, left: 10, right: 10 }, }); this._map.on("load", () => { this.dispatchEvent(new CustomEvent("load"), { bubbles: true, composed: true, // Allows event to cross shadow DOM boundary detail: { map: this, }, }); }); } // Initial render of component render() { this.shadowRoot.innerHTML = `
`; } addLayer(a) { return this._map.addLayer(a); } addSource(a, b) { return this._map.addSource(a, b); } jumpTo(args) { return this._map.jumpTo(args); } on(a, b) { return this._map.on(a, b); } once(a, b) { return this._map.once(a, b); } queryRenderedFeatures(a) { return this._map.queryRenderedFeatures(a); } setMarker(coords) { console.log("Setting map marker", coords); this._map.jumpTo({ center: coords, zoom: 14, }); this._markers.forEach((marker) => marker.remove()); const marker = new mapboxgl.Marker({ color: "#FF0000", draggable: true, }) .setLngLat(coords) .addTo(map); marker.on("dragend", function (e) { const markerDraggedEvent = new CustomEvent("markerdragend", { detail: { marker: marker, }, }); mapContainer.dispatchEvent(markerDraggedEvent); }); this._markers = [marker]; } SetLayoutProperty(layout, property, value) { return this._map.setLayoutProperty(layout, property, value); } } customElements.define("map-admin", MapAdmin);