1 <html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-US">
3 <title>Location</title>
4 <script src="http://www.openlayers.org/api/OpenLayers.js"></script>
6 src="https://www.openstreetmap.org/openlayers/OpenStreetMap.js">
8 <script type="text/javascript">
9 const urlParams = new URLSearchParams(window.location.search);
10 const qimei = urlParams.get("imei");
12 const ourl = new URL(window.location);
13 const wsproto = ourl.protocol === "https" ? "wss" : "ws";
14 const wshost = ourl.hostname ? ourl.hostname : "localhost";
15 const wsport = ourl.port ? ourl.port : 5049;
17 const imeis = new Set();
31 sts = document.getElementById("sts");
32 sts.innerHTML = "uninitialized";
33 imei = document.getElementById("imei");
34 send = document.getElementById("send");
35 clear = document.getElementById("clear");
36 subslist = document.getElementById("subslist");
37 tstamp = document.getElementById("tstamp");
45 map = new OpenLayers.Map ("map", {
47 new OpenLayers.Control.Navigation(),
48 new OpenLayers.Control.PanZoomBar(),
49 new OpenLayers.Control.LayerSwitcher(),
50 new OpenLayers.Control.Attribution()],
51 maxExtent: new OpenLayers.Bounds(
52 -20037508.34,-20037508.34,
53 20037508.34,20037508.34),
54 maxResolution: 156543.0399,
57 projection: new OpenLayers.Projection(
59 displayProjection: new OpenLayers.Projection(
63 new OpenLayers.Layer.OSM.Mapnik("Mapnik");
64 map.addLayer(layerMapnik)
66 new OpenLayers.Layer.OSM.TransportMap("TransportMap");
67 map.addLayer(layerTransportMap)
69 new OpenLayers.Layer.OSM.CycleMap("CycleMap");
70 map.addLayer(layerCycleMap);
72 new OpenLayers.Layer.Markers("Markers");
73 map.addLayer(markers);
75 var size = new OpenLayers.Size(21, 25);
76 var offset = new OpenLayers.Pixel(-(size.w/2), -size.h);
77 icon = new OpenLayers.Icon(
78 'https://www.openstreetmap.org/openlayers/img/marker.png',size,offset);
81 new OpenLayers.LonLat(0, 0).transform(
82 new OpenLayers.Projection("EPSG:4326"),
83 map.getProjectionObject());
84 map.setCenter(lonLat, 1);
87 function set_marker(lon, lat) {
88 console.log("setting marker at " + lon + ", " + lat)
90 new OpenLayers.LonLat(lon, lat).transform(
91 new OpenLayers.Projection("EPSG:4326"),
92 map.getProjectionObject());
93 markers.addMarker(new OpenLayers.Marker(lonLat,icon));
94 map.setCenter(lonLat, 16);
98 wsurl = new URL("ws://localhost/");
99 wsurl.protocol = wsproto
100 wsurl.hostname = wshost
102 console.log("wsurl is " + wsurl)
103 ws = new WebSocket(wsurl);
104 ws.onopen = ws_onopen;
105 ws.onmessage = ws_onmessage;
106 ws.onerror = ws_onerror;
107 ws.onclose = ws_onclose;
109 function ws_onopen(event) {
110 console.log("ws opened " + event);
111 sts.innerHTML = "open";
112 imei.disabled = false;
113 send.disabled = false;
114 clear.disabled = false;
117 function ws_onmessage(event) {
118 console.log("message " + event.data);
119 msg = JSON.parse(event.data)
120 tstamp.innerHTML = msg.devtime;
121 set_marker(+msg.longitude, +msg.latitude);
123 function ws_onerror(event) {
124 console.log("error " + event);
125 sts.innerHTML = "error";
127 function ws_onclose(event) {
128 console.log("close " + event);
129 sts.innerHTML = "closed";
130 imei.disabled = true;
131 send.disabled = true;
132 clear.disabled = true;
133 setTimeout(open_ws, 5000);
136 function sendIMEI(do_clear) {
141 imeis.add(imei.value);
144 const imstr = Array.from(imeis).join(",");
145 document.title = imstr;
146 subslist.innerHTML = imstr;
148 imei: Array.from(imeis),
152 console.log("sending" + JSON.stringify(msg));
153 ws.send(JSON.stringify(msg));
157 function handleKey(evt) {
158 if (evt.keyCode === 13 || evt.keyCode === 14) {
159 if (!imei.disabled) {
167 <body onload="init();">
168 <div style="width:100%; height:2%" id="hdr">
169 <input id="imei" type="text" name="imei"
170 size="16" maxlength="16" placeholder="Enter IMEI"
171 autocomplete="off" onkeyup="handleKey(event)">
172 <input type="button" id="send" name="send" value="Send"
173 onclick="sendIMEI(false)" disabled>
174 <input type="button" id="clear" name="clear" value="Clear"
175 onclick="sendIMEI(true)" disabled>
176 <span id="subslist"></span>
177 <span id="tstamp" style="float:right"></span>
179 <div style="width:100%; height:97%" id="map"></div>
180 <div style="width:100%; height:1%" id="sts"></div>