mobility-toolbox-js/common/utils/getMapGlCopyrights.js

Toolbox for JavaScript applications in the domains of mobility and logistics.

import removeDuplicate from './removeDuplicate';
/**
 * Return the copyright a Maplibre map.
 * @param {maplibregl.Map} map A Maplibre map
 * @private
 */
const getMapGlCopyrights = (map) => {
    if (!map) {
        return [];
    }
    const { style } = map;
    if (!style) {
        return [];
    }
    // @ts-expect-error -  sourceCaches exists in maplibre-gl < 5.11.0
    const { sourceCaches, tileManagers } = style;
    let copyrights = [];
    const sourceCacheObj = tileManagers || sourceCaches || {};
    Object.values(sourceCacheObj).forEach((value) => {
        var _a;
        if (value.used) {
            const source = value.getSource();
            const attribution = (source === null || source === void 0 ? void 0 : source.attribution) ||
                ((_a = source.options) === null || _a === void 0 ? void 0 : _a.attribution);
            if (attribution) {
                copyrights = copyrights.concat(attribution.replace(/&copy;/g, '©').split(/(<a.*?<\/a>)/));
            }
        }
    });
    return removeDuplicate(copyrights);
};
export default getMapGlCopyrights;