import L from "leaflet"; import {UIEventSource} from "../../UI/UIEventSource"; import {UIElement} from "../../UI/UIElement"; import {State} from "../../State"; import {Utils} from "../../Utils"; import {Basemap} from "./Basemap"; export class GeoLocationHandler extends UIElement { private _isActive: UIEventSource = new UIEventSource(false); private _permission: UIEventSource = new UIEventSource(""); private _marker: any; private _hasLocation: UIEventSource; constructor() { super(undefined); this._hasLocation = State.state.currentGPSLocation.map((location) => location !== undefined); this.ListenTo(this._hasLocation); this.ListenTo(this._isActive); this.ListenTo(this._permission); const self = this; function onAccuratePositionProgress(e) { console.log(e.accuracy); console.log(e.latlng); State.state.currentGPSLocation.setData({latlng: e.latlng, accuracy: e.accuracy}); } function onAccuratePositionFound(e) { console.log(e.accuracy); console.log(e.latlng); State.state.currentGPSLocation.setData({latlng: e.latlng, accuracy: e.accuracy}); } function onAccuratePositionError(e) { console.log("onerror", e.message); } const bm : Basemap = State.state.bm; const map = bm.map; map.on('accuratepositionprogress', onAccuratePositionProgress); map.on('accuratepositionfound', onAccuratePositionFound); map.on('accuratepositionerror', onAccuratePositionError); const icon = L.icon( { iconUrl: './assets/crosshair-blue.svg', iconSize: [40, 40], // size of the icon iconAnchor: [20, 20], // point of the icon which will correspond to marker's location }) State.state.currentGPSLocation.addCallback((location) => { const newMarker = L.marker(location.latlng, {icon: icon}); newMarker.addTo(map); if (self._marker !== undefined) { map.removeLayer(self._marker); } self._marker = newMarker; }); navigator?.permissions?.query({name: 'geolocation'}) ?.then(function (status) { console.log("Geolocation is already", status) if (status.state === "granted") { self.StartGeolocating(); } self._permission.setData(status.state); status.onchange = function () { self._permission.setData(status.state); } }); this.HideOnEmpty(true); } InnerRender(): string { if(!State.state.featureSwitchGeolocation.data){ return ""; } if (this._hasLocation.data) { return "locate me"; } if (this._isActive.data) { return "locate me"; } return "locate me"; } private StartGeolocating() { const self = this; const map = State.state.bm.map; if (self._permission.data === "denied") { return ""; } if (State.state.currentGPSLocation.data !== undefined) { map.flyTo(State.state.currentGPSLocation.data.latlng, 18); } console.log("Searching location using GPS") map.findAccuratePosition({ maxWait: 10000, // defaults to 10000 desiredAccuracy: 50 // defaults to 20 }); if (!self._isActive.data) { self._isActive.setData(true); Utils.DoEvery(60000, () => { if (document.visibilityState !== "visible") { console.log("Not starting gps: document not visible") return; } map.findAccuratePosition({ maxWait: 10000, // defaults to 10000 desiredAccuracy: 50 // defaults to 20 }); }) } } InnerUpdate(htmlElement: HTMLElement) { super.InnerUpdate(htmlElement); const self = this; htmlElement.onclick = function () { self.StartGeolocating(); } } }