Subversion Repositories eFlore/Applications.cel

import {NOMINATIM_OSM_URL,TbPlaces} from "./modules/Locality.js";

const tileLayers = {

    googleHybrid: [

        'https://{s}.google.com/vt/lyrs=s,h&x={x}&y={y}&z={z}',

        {

            attribution: '<a href="https://www.google.com" target="_blank">\xa9 Google Maps</a>',

            subdomains: ["mt0","mt1","mt2","mt3"],

            maxZoom: 20

        }

    ],

    osm: [

        'https://osm.tela-botanica.org/tuiles/osmfr/{z}/{x}/{y}.png',

        {

            attribution: 'Data © <a href="http://osm.org/copyright">OpenStreetMap</a>',

             maxZoom: 18

        }

    ]

};

const defaultPosition = {

    lat: 47.0504,

    lng: 2.2347

};

const defaultCityZoom = 12;

const defaultZoom = 4;

const geometryFilterDefault = 'point';

const defaultMapIdAttr = 'tb-geolocation';

const markerImgBaseUrl = URL_BASE +'js/tb-geoloc/img/';

const markerIcon = L.Icon.extend({

    options: {

        shadowUrl: markerImgBaseUrl +'marker-shadow.png',

        iconAnchor: new L.Point(12, 40),//correctly replaces the dot of the pointer

        iconSize: new L.Point(24,40),

        iconUrl: markerImgBaseUrl +'marker-icon.png',

    }

});

const defaultPolylineOptions = {

    shapeOptions: {

        weight: 5

    },

    showLength: true,

    repeatMode: false

};

const drawLocale = {

    edit: {

        handlers: {

            edit: {

                tooltip: {

                    subtext: 'Cliquer sur annuler pour supprimer les changements',

                    text: 'Déplacez les marqueurs pour modifier leur position'

                }

            },

            remove: {

                tooltip: {

                    text: 'cliquer sur une ligne pour supprimer'

                }

            }

        },

        toolbar: {

            actions: {

                cancel: {

                    text: 'Annuler',

                    title: 'Annuler'

                },

                clearAll: {

                    text: 'Effacer',

                    title: 'Tout effacer'

                },

                save: {

                    text: 'Sauvegarder',

                    title: 'Sauvegarder les changements'

                }

            },

            buttons: {

                edit: 'Editer',

                editDisabled: 'Rien à editer',

                remove: 'Supprimer',

                removeDisabled: 'Rien à supprimer'

            }

        }

    },

    draw : {

        toolbar: {

            actions: {

                text: 'Annuler',

                title: 'Annuler'

            },

            buttons: {

                polyline: 'Dessiner une ligne',

                marker: 'Pointer une position'

            },

            finish: {

                text: 'Terminer',

                title: 'Terminer'

            },

            undo: {

                text: 'Supprimer',

                title: 'Supprimer le dernier point'

            }

        },

        handlers: {

            polyline: {

                tooltip: {

                    start: 'Cliquer sur la carte pour placer le début de la ligne',

                    cont: 'Positionner le prochain point et cliquer',

                    end: 'Re-cliquer sur le dernier point pour finir la ligne'

                }

            },

            marker: {

                tooltip: {

                    start: 'Cliquer sur la carte pour placer le marqueur'

                }

            },

            rectangle: {tooltip: {}},

            simpleshape: {tooltip: {}},

            circle: {tooltip: {}},

            circlemarker: {tooltip: {}}

        }

    }

};

/***************************************************/

export function Geoloc() {

    this.map = {};

    this.coordinates = defaultPosition;

    this.geojson = {};

    this.editableLayers = {};

    this.defaultDrawControlOptions = {};

    this.drawControl = {};

    this.defaultEditOptions = false;

    this.layer = {};

};

Geoloc.prototype.init = function(suffix = '') {

    this.mapIdAttr = defaultMapIdAttr + suffix;

    this.geolocLabel = document.getElementById('geoloc-label' + suffix);

    this.initForm();

    this.initEvts();

};

Geoloc.prototype.initForm = function() {

    this.mapEl = document.getElementById(this.mapIdAttr);

    this.zoom = this.mapEl.dataset.zoom || defaultZoom;

    this.geometryFilter = this.mapEl.dataset.typeLocalisation || geometryFilterDefault;

    const formSuffix = this.mapEl.dataset.formSuffix;

    this.latitudeEl = document.getElementById('latitude' + formSuffix);

    this.longitudeEl = document.getElementById('longitude' + formSuffix);

};

Geoloc.prototype.initEvts = function() {

    this.initMap();

    this.handleCoordinates();

    this.onCoordinates();

    if('point' === this.geometryFilter) {

        this.initSearchLocality();

    }

};

Geoloc.prototype.initMap = function() {

    this.map = this.createLocationMap();

    // interactions with map

    this.map.on(L.Draw.Event.CREATED, evt => {

        this.layer = evt.layer;

        // created marker or polyline with drawControl

        // no more need this drawcontrol: remove

        // (polyline: another one will be added with only edit toolbar)

        this.map.removeControl(this.drawControl);

        if ('marker' === evt.layerType) {

            this.onMarkerCreated();

        } else if ('polyline' === evt.layerType) {

            this.handlePolylineEvents();

        }

    });

    this.map.on(L.Draw.Event.EDITED, evt => {

        const layers = evt.layers;

        this.map.removeLayer(this.layer);

        layers.eachLayer(layer => {

            this.layer = layer;

            this.handlePolylineEvents(false);

        });

    });

    this.map.on(L.Draw.Event.DELETED, evt => {

        this.reSetDrawControl();

    });

};

Geoloc.prototype.reSetDrawControl = function() {

    this.map.removeLayer(this.layer);

    this.map.removeControl(this.drawControl);

    this.setDrawControl(this.map);

};

Geoloc.prototype.createLocationMap = function() {

    const lthis = this,

        map = L.map(this.mapIdAttr, {zoomControl: true, gestureHandling: true}).setView([this.coordinates.lat, this.coordinates.lng], this.zoom),

        tileLayer = this.mapEl.dataset.layer || 'osm';

    L.tileLayer(...tileLayers[tileLayer]).addTo(map);

    this.editableLayers = new L.FeatureGroup();

    map.addLayer(this.editableLayers);

    this.setDrawControl(map);

    return map;

};

Geoloc.prototype.setDrawControl = function(map) {

    this.defaultDrawControlOptions = this.generateDrawControlOptions();

    this.drawControl = this.generateDrawControl(...Object.values(this.defaultDrawControlOptions));

    map.addControl(this.drawControl);

};

Geoloc.prototype.generateDrawControlOptions = function() {

    const options = {

        editOptions: false,

        markerOptions: false,

        polylineOptions: false

    };

    this.defaultEditOptions = {

        featureGroup: this.editableLayers,// REQUIRED!!

        remove: true

    }

    switch (this.geometryFilter) {

        case 'point':

            options.markerOptions = {

                icon: new markerIcon(),

                repeatMode: false

            };

            break;

        case 'rue':

            options.polylineOptions = defaultPolylineOptions;

            break;

        default:

            break;

    }

    return options;

};

Geoloc.prototype.generateDrawControl = function(

    editOptions,

    markerOptions = false,

    polylineOptions = false

) {

    L.drawLocal = drawLocale;

    return new L.Control.Draw({

        position: 'topleft',

        draw: {

            polyline: polylineOptions,

            polygon: false,

            circle: false,

            rectangle: false,

            marker: markerOptions,

            circlemarker: false

        },

        edit: editOptions

    });

};

Geoloc.prototype.onMarkerCreated = function() {

    const coordinates = this.layer.getLatLng();

    this.handleNewLocation(coordinates);

};

Geoloc.prototype.handleMarkerEvents = function() {

    if(this.map) {

        const lthis = this;

        // move marker on click

        $(this.map).off('click').on('click', function(evt) {

            lthis.handleNewLocation(evt.latlng);

        });

        // move marker on drag

        $(this.map.marker).off('dragend').on('dragend', function() {

            lthis.handleNewLocation(lthis.map.marker.getLatLng());

        });

    }

};

Geoloc.prototype.handlePolylineEvents = function(requiresNewEditDrawControl = true) {

    const latLngs = this.layer.getLatLngs(),

        polyline = this.formatPolyline(latLngs),

        coordinates = this.layer.getBounds().getCenter();

    if (requiresNewEditDrawControl) {

        this.drawControl = this.generateDrawControl(this.defaultEditOptions);

        this.map.addControl(this.drawControl);

    }

    // make polyline removable

    this.editableLayers.addLayer(L.polyline(latLngs));

    this.map.addLayer(this.layer);

    this.handleNewLocation(coordinates, polyline);

};

/**

 * triggers location event

 * @param coordinates.

 * @param coordinates.lat latitude.

 * @param coordinates.lng longitude.

 * @param {array||null} polyline array of coordinates object

 */

Geoloc.prototype.handleNewLocation = function (coordinates, polyline = []) {

    coordinates = this.formatCoordinates(coordinates);

    if(!!coordinates && !!coordinates.lat && coordinates.lng) {

        this.setMapCoordinates(coordinates);

        if('point' === this.geometryFilter) {

            this.createDraggableMarker();

            this.handleMarkerEvents();

        }

        this.getLocationInfo(coordinates, polyline);

    }

};

Geoloc.prototype.formatCoordinates = function (coordinates) {

    coordinates.lat = Number.parseFloat(coordinates.lat);

    coordinates.lng = Number.parseFloat(coordinates.lng);

    if(Number.isNaN(coordinates.lat) || Number.isNaN(coordinates.lng)) {

        return null;

    }

    return coordinates;

};

Geoloc.prototype.formatPolyline = function (latLngs) {

    const polyline = [];

    latLngs.forEach(coordinates => polyline.push(Object.values(coordinates)));

    return polyline;

};

Geoloc.prototype.setMapCoordinates = function (coordinates) {

    this.coordinates = coordinates;

    // updates map

    this.map.setView(coordinates);

};

Geoloc.prototype.createDraggableMarker = function() {

    if (undefined === this.map.marker) {

        // after many attempts, did not manage

        // to make marker from draw control draggable

        // solution: replace it

        if(this.layer) {

            this.map.removeLayer(this.layer);

        }

        this.map.marker = new L.Marker(this.coordinates, {

            draggable: true,

            icon: new markerIcon()

        });

        this.layer = this.map.marker;

        this.map.addLayer(this.map.marker);

        if(this.drawControl) {

            this.map.removeControl(this.drawControl);

        }

    }

    this.map.marker.setLatLng(this.coordinates, {draggable: 'true'});

};

Geoloc.prototype.getLocationInfo = function(coordinates, polyline) {

    const lthis = this,

        url = NOMINATIM_OSM_URL+'reverse',

        params = {

            'format': 'json',

            'lat': coordinates.lat,

            'lon': coordinates.lng

        };

    this.geolocLabel.classList.add('loading');

    $.ajax({

        method: "GET",

        url: url,

        data: params,

        success: function(locationData) {

            lthis.loadGeolocation(coordinates,locationData,polyline);

        },

        error: (err) => {

            console.warn(err);

            lthis.geolocLabel.classList.remove('loading');

        }

    });

};

Geoloc.prototype.loadGeolocation = function(coordinates,locationData,polyline) {

    const lthis = this,

        query = {

            'lat': coordinates.lat,

            'lon': coordinates.lng

        };

    $.ajax({

        method: "GET",

        url: URL_GEOLOC_SERVICE,

        data: query,

        success: function (geoLocationData) {

            lthis.triggerLocationEvent(

                lthis.formatLocationEventObject(coordinates,geoLocationData,locationData,polyline)

            );

            lthis.geolocLabel.classList.remove('loading');

        },

        error:  (err) => {

            console.warn(err);

            lthis.geolocLabel.classList.remove('loading');

        }

    });

};

Geoloc.prototype.triggerLocationEvent = function (locationDataObject) {

    const location = new CustomEvent('location', {detail: locationDataObject});

    this.mapEl.dispatchEvent(location);

};

Geoloc.prototype.formatLocationEventObject = function(coordinates,geoLocationData,locationData,polyline) {

    const detail = {

        centroid: {

            type: 'Point',

            coordinates: Object.values(coordinates)

        },

        elevation: geoLocationData.altitude,

        inseeData: {

            code: geoLocationData.code_zone,

            nom: geoLocationData.nom

        },

        osmCountry: locationData.address.country,

        osmCountryCode: geoLocationData.code_pays,

        osmCounty: locationData.address.county,

        osmPostcode:locationData.address.postcode,

        locality: this.getLocalityFromData(locationData),

        locality: geoLocationData.nom,

        osmRoad: locationData.address.road,

        osmState: locationData.address.state,

        osmId: locationData.osm_id,

        osmPlaceId: locationData.place_id

    };

    if (0 < polyline.length) {

        detail.geometry = {

            type: 'LineString',

            coordinates: polyline

        };

    } else {

        detail.geometry = detail.centroid;

    }

    return detail;

}

Geoloc.prototype.handleCoordinates = function() {

    if (!!this.latitudeEl.value && !!this.longitudeEl.value) {

        this.handleNewLocation({

            'lat': this.latitudeEl.value,

            'lng': this.longitudeEl.value

        });

    }

};

Geoloc.prototype.onCoordinates = function() {

    [this.latitudeEl,this.longitudeEl].forEach(coordinate =>

        coordinate.addEventListener('blur', function() {

            this.handleCoordinates();

        }.bind(this))

    );

};

Geoloc.prototype.initSearchLocality = function() {

    const placesZone = document.getElementById('tb-places-zone');

    if(placesZone) {

        placesZone.classList.remove('hidden');

        this.tbPlaces = new TbPlaces(this.tbPlacesCallback.bind(this));

        this.tbPlaces.init();

    }

};

Geoloc.prototype.tbPlacesCallback = function(localityData) {

    const locality = this.getLocalityFromData(localityData);

    if(!!locality) {

        const coordinates = {

            'lat' : localityData.lat,

            'lng' : localityData.lon

        };

        this.map.removeControl(this.drawControl);

        this.handleNewLocation(coordinates);

    }

};

Geoloc.prototype.getLocalityFromData = function(localityData) {

    const addressData = localityData.address,

        locationNameType = ['village', 'city', 'locality', 'municipality', 'county'].find(locationNameType => addressData[locationNameType] !== undefined);

    if (!locationNameType) {

        return;

    }

    return addressData[locationNameType];

};

Geoloc.prototype.closeMap = function () {

    // reset map

    this.map = L.DomUtil.get(this.mapIdAttr);

    if (this.map != null) {

        this.map._leaflet_id = null;

    }

};