2019-07-01 14:49:39 +00:00
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(function(){
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var protocol = 'ws';
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if (window.location.toString().startsWith('https://')) {
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protocol = 'wss';
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}
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var ws_url = protocol + "://" + (window.location.origin.split("://")[1]) + "/ws/";
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if (!("WebSocket" in window)) return;
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var ws = new WebSocket(ws_url);
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ws.onopen = function(){
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ws.send("SERVER DE CLIENT client=map.js type=map");
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};
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2019-07-01 17:49:58 +00:00
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2019-07-01 19:20:53 +00:00
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var map;
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var markers = {};
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var updateQueue = [];
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var processUpdates = function(updates) {
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if (!map) {
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updateQueue = updateQueue.concat(updates);
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return;
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}
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updates.forEach(function(update){
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// TODO maidenhead locator implementation
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if (update.location.type != 'latlon') return;
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var pos = new google.maps.LatLng(update.location.lat, update.location.lon)
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if (markers[update.callsign]) {
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console.info("updating");
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markers[update.callsign].setPosition(pos);
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} else {
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console.info("initializing");
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markers[update.callsign] = new google.maps.Marker({
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position: pos,
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map: map,
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title: update.callsign
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});
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}
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});
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}
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2019-07-01 17:49:58 +00:00
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ws.onmessage = function(e){
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if (typeof e.data != 'string') {
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console.error("unsupported binary data on websocket; ignoring");
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return
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}
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if (e.data.substr(0, 16) == "CLIENT DE SERVER") {
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console.log("Server acknowledged WebSocket connection.");
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return
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}
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try {
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json = JSON.parse(e.data);
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switch (json.type) {
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case "config":
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var config = json.value;
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$.getScript("https://maps.googleapis.com/maps/api/js?key=" + config.google_maps_api_key).done(function(){
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2019-07-01 19:20:53 +00:00
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map = new google.maps.Map($('body')[0], {
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2019-07-01 17:49:58 +00:00
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center: {
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lat: config.receiver_gps[0],
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lng: config.receiver_gps[1]
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},
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zoom: 8
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});
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2019-07-01 19:20:53 +00:00
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processUpdates(updateQueue);
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2019-07-01 17:49:58 +00:00
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})
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break
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2019-07-01 19:20:53 +00:00
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case "update":
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processUpdates(json.value);
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break
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2019-07-01 17:49:58 +00:00
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}
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} catch (e) {
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// don't lose exception
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console.error(e);
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}
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2019-07-01 14:49:39 +00:00
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};
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ws.onclose = function(){
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console.info("onclose");
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};
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window.onbeforeunload = function() { //http://stackoverflow.com/questions/4812686/closing-websocket-correctly-html5-javascript
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ws.onclose = function () {};
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ws.close();
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};
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ws.onerror = function(){
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console.info("onerror");
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};
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})();
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