app/assets/javascripts/leaflet.maptiler.js

   1 //= require leaflet.maplibre
   2 //= require @maptiler/maplibre-gl-omt-language
   3
   4 L.OSM.OpenMapTiles = L.MaplibreGL.extend({
   5   initialize: function (options) {
   6     L.MaplibreGL.prototype.initialize.call(this, {
   7       style:
   8         "https://api.maptiler.com/maps/openstreetmap/style.json?key=" +
   9         options.apikey,
  10       ...options
  11     });
  12   },
  13   onAdd: function (map) {
  14     L.MaplibreGL.prototype.onAdd.call(this, map);
  15     const maplibreMap = this.getMaplibreMap();
  16     const supportedLanguages = maplibregl.Map.prototype.supportedLanguages;
  17     for (const preferredLanguage of OSM.preferred_languages) {
  18       const normalizedPreferredLanguage = preferredLanguage
  19         .toLowerCase()
  20         .replace("-", "_");
  21       const matchedLanguage = supportedLanguages.find(
  22         (supported) => supported.toLowerCase() === normalizedPreferredLanguage
  23       );
  24       if (matchedLanguage) {
  25         maplibreMap.setLanguage(matchedLanguage);
  26         break;
  27       }
  28     }
  29   },
  30   onRemove: function (map) {
  31     L.MaplibreGL.prototype.onRemove.call(this, map);
  32   }
  33 });