traque/static/utils.js

var protocol = location.protocol;
var server = location.hostname;
var port = location.port;
var socket;
var id;
var markers = {};

var CircleIcon = L.Icon.extend({
    options: {
        iconSize:     [20, 20],
        iconAnchor:   [10, 10],
        popupAnchor:  [0, 0]
    }
});

var icons = [
    new CircleIcon({ iconUrl: '/def.png' }),
    new CircleIcon({ iconUrl: '/track.png' }),
    new CircleIcon({ iconUrl: '/invi.png' }),
    new CircleIcon({ iconUrl: '/purple.png' }),
    new CircleIcon({ iconUrl: '/green.png' }),
    new CircleIcon({ iconUrl: '/orange.png' })
];

//////////////////////////////////////////////////////////////////////////////
// INIT MAP

var map_border = [
    [48.838991, 2.389310],
    [48.865471, 2.356133],
    [48.867714, 2.313811],
    [48.841481, 2.307930],
    [48.827912, 2.326842],
    [48.821826, 2.358638],
    [48.838991, 2.389310]
];

var map;

function setup_map(){
	map = L.map('map').setView([48.8448, 2.3550], 13);

	L.tileLayer('https://stamen-tiles.a.ssl.fastly.net/toner/{z}/{x}/{y}.png', {
	    maxZoom: 19,
	    attribution: '© OpenStreetMap'
	}).addTo(map);

    L.polyline(map_border, {color: 'red'}).addTo(map);
}

//////////////////////////////////////////////////////////////////////////////
// SOCKET

function setup_socket_common(){
    socket.on("moving", function(data){
        console.log("moving", data);
        if(!(data.id in markers)){
            markers[data.id] = L.marker(data.position, {"icon": icons[data.color]}).addTo(map);
            if(data.id == id)
                 markers[data.id].setZIndexOffset(10000);
            markers[data.id].bindPopup(data.id);
        } else{
            markers[data.id].setLatLng(data.position);
            markers[data.id].setIcon(icons[data.color]);
        }
    });

	socket.on("popup", function(data){
		alert(data.content);
	});

	socket.on("remove", function(data){
		if(data.id in markers)
			markers[data.id].remove();
	});

	socket.on("newTracker", function(data){
		L.marker(data.position, {"icon": icons[1]}).addTo(map);
	});
}

//////////////////////////////////////////////////////////////////////////////
// GEOLOCALISATION

function setup_geoLoc(){
	function geoLoc_success(pos) {
        fetch("/log?id="+id+"&lat="+pos.coords.latitude+"&lon="+pos.coords.longitude);
	}

	function geoLoc_error(err) {
		console.error(`ERROR(${err.code}): ${err.message}`);
	}

	var options = {
		enableHighAccuracy: false,
		timeout: 5000,
		maximumAge: 0
	};

	navigator.geolocation.watchPosition(geoLoc_success, geoLoc_error, options);
}