gestionnaire-de-taches-simple/assets/controllers/map_controller.js

import { Controller } from '@hotwired/stimulus';
import 'leaflet';

export default class extends Controller {
    static values = {
        geojson: String,
        icon: String,
    }

    connect() {
        const simpleIcon = L.icon({
            iconUrl: this.iconValue,
            iconSize: [16, 16],
            iconAnchor: [8, 16],
            popupAnchor: [0, 0],
        });

        const iconHtml = `
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" class="bi bi-geo-alt-fill" viewBox="0 0 16 16">
  <path fill="currentColor" d="M8 16s6-5.686 6-10A6 6 0 0 0 2 6c0 4.314 6 10 6 10m0-7a3 3 0 1 1 0-6 3 3 0 0 1 0 6"/>
</svg>
            `; 
        const icons = {
            'danger': L.divIcon({ html: iconHtml, className: 'svg-icon text-danger', iconSize: [16, 16], iconAnchor: [8, 16], }),
            'warning': L.divIcon({ html: iconHtml, className: 'svg-icon text-warning', iconSize: [16, 16], iconAnchor: [8, 16], }),
            'success': L.divIcon({ html: iconHtml, className: 'svg-icon text-success', iconSize: [16, 16], iconAnchor: [8, 16], }),
        };

        var map = L.map(this.element);
        L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
            maxZoom: 19,
            attribution: '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>'
        }).addTo(map);

        var layer = L.featureGroup();

        var geojsons = JSON.parse(this.geojsonValue);
        if (geojsons.length > 0) {
            geojsons.forEach(function (geojson) {

                const feature0 = geojson.features[0].properties;

                const polygon = L.geoJSON(geojson, {
                    style: function (feature) {
                        var color = 'blue';
                        switch (feature.properties.color) {
                            case 'danger' : color = '#dc3545'; break
                            case 'warning' : color = '#ffc107'; break
                            case 'success' : color = '#198754'; break
                        }
                        return {color: color};
                    }
                }).bindTooltip(feature0.name).addTo(layer).on('click', function (event) {
                    window.location.href = event.layer.feature.properties.url;
                });

                L.marker(polygon.getBounds().getCenter(), {
                    icon: icons[feature0.color],
                    title: feature0.name,
                    clickUrl: feature0.url,
                }).addTo(layer).on('click', function (event) {
                    window.location.href = event.target.options.clickUrl;
                });

            });
            layer.addTo(map);
 
            map.fitBounds(layer.getBounds());
        }
    }
}