OpenLayers_JS_Popup code example

Example: OpenLayers_JS_Popup

import 'ol/ol.css';
import Map from 'ol/Map';
import Overlay from 'ol/Overlay';
import TileLayer from 'ol/layer/Tile';
import View from 'ol/View';
import XYZ from 'ol/source/XYZ';
import {toLonLat} from 'ol/proj';
import {toStringHDMS} from 'ol/coordinate';

/**
 * Elements that make up the popup.
 */
var container = document.getElementById('popup');
var content = document.getElementById('popup-content');
var closer = document.getElementById('popup-closer');

/**
 * Create an overlay to anchor the popup to the map.
 */
var overlay = new Overlay({
  element: container,
  autoPan: true,
  autoPanAnimation: {
    duration: 250,
  },
});

/**
 * Add a click handler to hide the popup.
 * @return {boolean} Don't follow the href.
 */
closer.onclick = function () {
  overlay.setPosition(undefined);
  closer.blur();
  return false;
};

var key = 'Get your own API key at https://www.maptiler.com/cloud/';
var attributions =
  '<a href="https://www.maptiler.com/copyright/" target="_blank">© MapTiler</a> ' +
  '<a href="https://www.openstreetmap.org/copyright" target="_blank">© OpenStreetMap contributors</a>';

/**
 * Create the map.
 */
var map = new Map({
  layers: [
    new TileLayer({
      source: new XYZ({
        attributions: attributions,
        url: 'https://api.maptiler.com/maps/streets/{z}/{x}/{y}.png?key=' + key,
        tileSize: 512,
      }),
    }) ],
  overlays: [overlay],
  target: 'map',
  view: new View({
    center: [0, 0],
    zoom: 2,
  }),
});

/**
 * Add a click handler to the map to render the popup.
 */
map.on('singleclick', function (evt) {
  var coordinate = evt.coordinate;
  var hdms = toStringHDMS(toLonLat(coordinate));

  content.innerHTML = '<p>You clicked here:</p><code>' + hdms + '</code>';
  overlay.setPosition(coordinate);
});