mobility-toolbox-js/maplibre/controls/CopyrightControl.js

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

import { getMapGlCopyrights } from '../../common/utils';
/**
 * @private
 */
const DEFAULT_SEPARATOR = ' | ';
/**
 * Display layer's attributions trying to remove duplicated ones.
 *
 * @example
 * import { Map } from 'maplibre-gl';
 * import { CopyrightControl } from 'mobility-toolbox-js/maplibre';
 *
 * const map = new Map({
 *   container: 'map',
 *   style: `https://maps.geops.io/styles/travic_v2/style.json?key=${window.apiKey}`,
 * });
 *
 * const control = new CopyrightControl();
 * map.addControl(control);
 *
 *
 * @see <a href="/example/mb-realtime>MapLibre Realtime layer example</a>
 *
 * @implements {maplibregl.IControl}
 *
 * @public
 */
class CopyrightControl {
    constructor(options = {}) {
        this.options = options;
    }
    // eslint-disable-next-line class-methods-use-this
    getDefaultPosition() {
        return 'bottom-right';
    }
    onAdd(map) {
        this.map = map;
        if (!this.container) {
            this.container = document.createElement('div');
        }
        this.render = this.render.bind(this);
        this.map.on('idle', this.render);
        this.map.on('sourcedata', this.render);
        this.map.on('styledata', this.render);
        this.render();
        return this.container;
    }
    onRemove() {
        var _a, _b;
        if ((_a = this.container) === null || _a === void 0 ? void 0 : _a.parentElement) {
            (_b = this.container.parentElement) === null || _b === void 0 ? void 0 : _b.removeChild(this.container);
        }
        if (this.map) {
            this.map.off('sourcedata', this.render);
            this.map.off('styledata', this.render);
            this.map.off('idle', this.render);
        }
        this.map = undefined;
        return this.container;
    }
    render() {
        var _a, _b;
        if (this.map && this.container) {
            const separator = ((_a = this.options) === null || _a === void 0 ? void 0 : _a.separator) || DEFAULT_SEPARATOR;
            const attribs = ((_b = this.options) === null || _b === void 0 ? void 0 : _b.customAttribution) || getMapGlCopyrights(this.map);
            const content = (Array.isArray(attribs) ? attribs : [attribs]).join(separator);
            if (this.container.innerHTML !== content) {
                this.content = content;
                this.container.innerHTML = this.content;
            }
        }
    }
}
export default CopyrightControl;