527 lines
20 KiB
JavaScript
527 lines
20 KiB
JavaScript
$(function(){
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var query = new URLSearchParams(window.location.search);
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var expectedCallsign;
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if (query.has('callsign')) {
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expectedCallsign = Object.fromEntries(query.entries());
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}
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var expectedLocator;
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if (query.has('locator')) expectedLocator = query.get('locator');
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var protocol = window.location.protocol.match(/https/) ? 'wss' : 'ws';
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var href = window.location.href;
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var index = href.lastIndexOf('/');
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if (index > 0) {
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href = href.substr(0, index + 1);
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}
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href = href.split("://")[1];
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href = protocol + "://" + href;
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if (!href.endsWith('/')) {
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href += '/';
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}
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var ws_url = href + "ws/";
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var map;
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var markers = {};
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var rectangles = {};
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var receiverMarker;
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var updateQueue = [];
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// reasonable default; will be overriden by server
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var retention_time = 2 * 60 * 60 * 1000;
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var strokeOpacity = 0.8;
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var fillOpacity = 0.35;
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var callsign_url = null;
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var colorKeys = {};
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var colorScale = chroma.scale(['red', 'blue', 'green']).mode('hsl');
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var getColor = function(id){
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if (!id) return "#000000";
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if (!colorKeys[id]) {
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var keys = Object.keys(colorKeys);
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keys.push(id);
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keys.sort(function(a, b) {
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var pa = parseFloat(a);
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var pb = parseFloat(b);
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if (isNaN(pa) || isNaN(pb)) return a.localeCompare(b);
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return pa - pb;
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});
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var colors = colorScale.colors(keys.length);
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colorKeys = {};
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keys.forEach(function(key, index) {
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colorKeys[key] = colors[index];
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});
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reColor();
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updateLegend();
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}
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return colorKeys[id];
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}
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// when the color palette changes, update all grid squares with new color
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var reColor = function() {
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$.each(rectangles, function(_, r) {
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var color = getColor(colorAccessor(r));
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r.setOptions({
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strokeColor: color,
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fillColor: color
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});
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});
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}
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var colorMode = 'byband';
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var colorAccessor = function(r) {
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switch (colorMode) {
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case 'byband':
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return r.band;
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case 'bymode':
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return r.mode;
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}
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};
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$(function(){
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$('#openwebrx-map-colormode').on('change', function(){
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colorMode = $(this).val();
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colorKeys = {};
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filterRectangles(allRectangles);
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reColor();
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updateLegend();
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});
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});
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var updateLegend = function() {
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var lis = $.map(colorKeys, function(value, key) {
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// fake rectangle to test if the filter would match
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var fakeRectangle = Object.fromEntries([[colorMode.slice(2), key]]);
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var disabled = rectangleFilter(fakeRectangle) ? '' : ' disabled';
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return '<li class="square' + disabled + '" data-selector="' + key + '"><span class="illustration" style="background-color:' + chroma(value).alpha(fillOpacity) + ';border-color:' + chroma(value).alpha(strokeOpacity) + ';"></span>' + key + '</li>';
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});
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$(".openwebrx-map-legend .content").html('<ul>' + lis.join('') + '</ul>');
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};
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var shallowEquals = function(obj1, obj2) {
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// basic shallow object comparison
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return Object.entries(obj1).sort().toString() === Object.entries(obj2).sort().toString();
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}
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var processUpdates = function(updates) {
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if (typeof(AprsMarker) == 'undefined') {
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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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var key = sourceToKey(update.source);
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switch (update.location.type) {
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case 'latlon':
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var pos = new google.maps.LatLng(update.location.lat, update.location.lon);
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var marker;
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var markerClass = google.maps.Marker;
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var aprsOptions = {}
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if (update.location.symbol) {
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markerClass = AprsMarker;
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aprsOptions.symbol = update.location.symbol;
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aprsOptions.course = update.location.course;
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aprsOptions.speed = update.location.speed;
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}
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if (markers[key]) {
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marker = markers[key];
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} else {
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marker = new markerClass();
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marker.addListener('click', function(){
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showMarkerInfoWindow(update.source, pos);
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});
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markers[key] = marker;
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}
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marker.setOptions($.extend({
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position: pos,
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map: map,
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title: sourceToString(update.source)
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}, aprsOptions, getMarkerOpacityOptions(update.lastseen) ));
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marker.lastseen = update.lastseen;
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marker.mode = update.mode;
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marker.band = update.band;
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marker.comment = update.location.comment;
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if (expectedCallsign && shallowEquals(expectedCallsign, update.source)) {
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map.panTo(pos);
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showMarkerInfoWindow(update.source, pos);
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expectedCallsign = false;
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}
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if (infowindow && infowindow.source && shallowEquals(infowindow.source, update.source)) {
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showMarkerInfoWindow(infowindow.source, pos);
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}
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break;
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case 'locator':
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var loc = update.location.locator;
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var lat = (loc.charCodeAt(1) - 65 - 9) * 10 + Number(loc[3]);
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var lon = (loc.charCodeAt(0) - 65 - 9) * 20 + Number(loc[2]) * 2;
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var center = new google.maps.LatLng({lat: lat + .5, lng: lon + 1});
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var rectangle;
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// the accessor is designed to work on the rectangle... but it should work on the update object, too
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var color = getColor(colorAccessor(update));
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if (rectangles[key]) {
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rectangle = rectangles[key];
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} else {
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rectangle = new google.maps.Rectangle();
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rectangle.addListener('click', function(){
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showLocatorInfoWindow(this.locator, this.center);
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});
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rectangles[key] = rectangle;
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}
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rectangle.source = update.source;
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rectangle.lastseen = update.lastseen;
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rectangle.locator = update.location.locator;
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rectangle.mode = update.mode;
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rectangle.band = update.band;
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rectangle.center = center;
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rectangle.setOptions($.extend({
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strokeColor: color,
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strokeWeight: 2,
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fillColor: color,
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map: rectangleFilter(rectangle) ? map : undefined,
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bounds:{
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north: lat,
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south: lat + 1,
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west: lon,
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east: lon + 2
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}
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}, getRectangleOpacityOptions(update.lastseen) ));
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if (expectedLocator && expectedLocator === update.location.locator) {
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map.panTo(center);
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showLocatorInfoWindow(expectedLocator, center);
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expectedLocator = false;
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}
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if (infowindow && infowindow.locator && infowindow.locator === update.location.locator) {
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showLocatorInfoWindow(infowindow.locator, center);
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}
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break;
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}
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});
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};
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var clearMap = function(){
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var reset = function(_, item) { item.setMap(); };
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$.each(markers, reset);
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$.each(rectangles, reset);
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receiverMarker.setMap();
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markers = {};
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rectangles = {};
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};
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var reconnect_timeout = false;
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var config = {}
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var connect = function(){
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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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reconnect_timeout = false
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};
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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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return
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}
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try {
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var json = JSON.parse(e.data);
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switch (json.type) {
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case "config":
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Object.assign(config, json.value);
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if ('receiver_gps' in config) {
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var receiverPos = {
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lat: config.receiver_gps.lat,
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lng: config.receiver_gps.lon
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};
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if (!map) $.getScript("https://maps.googleapis.com/maps/api/js?key=" + config.google_maps_api_key).done(function(){
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map = new google.maps.Map($('.openwebrx-map')[0], {
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center: receiverPos,
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zoom: 5,
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});
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$.getScript("static/lib/nite-overlay.js").done(function(){
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nite.init(map);
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setInterval(function() { nite.refresh() }, 10000); // every 10s
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});
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$.getScript('static/lib/AprsMarker.js').done(function(){
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processUpdates(updateQueue);
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updateQueue = [];
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});
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var $legend = $(".openwebrx-map-legend");
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setupLegendFilters($legend);
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map.controls[google.maps.ControlPosition.LEFT_BOTTOM].push($legend[0]);
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if (!receiverMarker) {
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receiverMarker = new google.maps.Marker();
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receiverMarker.addListener('click', function() {
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showReceiverInfoWindow(receiverMarker);
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});
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}
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receiverMarker.setOptions({
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map: map,
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position: receiverPos,
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title: config['receiver_name'],
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config: config
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});
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}); else {
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receiverMarker.setOptions({
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map: map,
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position: receiverPos,
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config: config
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});
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}
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}
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if ('receiver_name' in config && receiverMarker) {
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receiverMarker.setOptions({
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title: config['receiver_name']
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});
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}
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if ('map_position_retention_time' in config) {
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retention_time = config.map_position_retention_time * 1000;
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}
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if ('callsign_url' in config) {
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callsign_url = config['callsign_url'];
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}
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break;
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case "update":
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processUpdates(json.value);
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break;
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case 'receiver_details':
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$('.webrx-top-container').header().setDetails(json['value']);
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break;
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default:
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console.warn('received message of unknown type: ' + json['type']);
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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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};
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ws.onclose = function(){
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clearMap();
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if (reconnect_timeout) {
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// max value: roundabout 8 and a half minutes
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reconnect_timeout = Math.min(reconnect_timeout * 2, 512000);
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} else {
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// initial value: 1s
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reconnect_timeout = 1000;
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}
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setTimeout(connect, reconnect_timeout);
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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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/*
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ws.onerror = function(){
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console.info("websocket error");
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};
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*/
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};
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connect();
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var getInfoWindow = function() {
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if (!infowindow) {
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infowindow = new google.maps.InfoWindow();
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google.maps.event.addListener(infowindow, 'closeclick', function() {
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delete infowindow.locator;
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delete infowindow.source;
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});
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}
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delete infowindow.locator;
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delete infowindow.source;
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return infowindow;
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};
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var sourceToKey = function(source) {
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// special treatment for special entities
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// not just for display but also in key treatment in order not to overlap with other locations sent by the same callsign
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if ('item' in source) return source['item'];
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if ('object' in source) return source['object'];
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var key = source.callsign;
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if ('ssid' in source) key += '-' + source.ssid;
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return key;
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};
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// we can reuse the same logic for displaying and indexing
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var sourceToString = sourceToKey;
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var linkifySource = function(source) {
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var callsignString = sourceToString(source);
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if (callsign_url == null || callsign_url === '')
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return callsignString;
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else
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return '<a target="callsign_info" href="' +
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callsign_url.replaceAll('{}', source.callsign) +
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'">' + callsignString + '</a>';
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};
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var distanceKm = function(p1, p2) {
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// Earth radius in km
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var R = 6371.0;
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// Convert degrees to radians
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var rlat1 = p1.lat() * (Math.PI/180);
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var rlat2 = p2.lat() * (Math.PI/180);
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// Compute difference in radians
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var difflat = rlat2-rlat1;
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var difflon = (p2.lng()-p1.lng()) * (Math.PI/180);
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// Compute distance
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d = 2 * R * Math.asin(Math.sqrt(
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Math.sin(difflat/2) * Math.sin(difflat/2) +
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Math.cos(rlat1) * Math.cos(rlat2) * Math.sin(difflon/2) * Math.sin(difflon/2)
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));
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return Math.round(d);
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};
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var infowindow;
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var showLocatorInfoWindow = function(locator, pos) {
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var infowindow = getInfoWindow();
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infowindow.locator = locator;
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var inLocator = Object.values(rectangles).filter(rectangleFilter).filter(function(d) {
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return d.locator === locator;
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}).sort(function(a, b){
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return b.lastseen - a.lastseen;
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});
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var distance = receiverMarker?
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" at " + distanceKm(receiverMarker.position, pos) + " km" : "";
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infowindow.setContent(
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'<h3>Locator: ' + locator + distance + '</h3>' +
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'<div>Active Callsigns:</div>' +
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'<ul>' +
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inLocator.map(function(i){
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var timestring = moment(i.lastseen).fromNow();
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var message = linkifySource(i.source) + ' (' + timestring + ' using ' + i.mode;
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if (i.band) message += ' on ' + i.band;
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message += ')';
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return '<li>' + message + '</li>'
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}).join("") +
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'</ul>'
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);
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infowindow.setPosition(pos);
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infowindow.open(map);
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};
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var showMarkerInfoWindow = function(source, pos) {
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var infowindow = getInfoWindow();
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infowindow.source = source;
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var marker = markers[sourceToKey(source)];
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var timestring = moment(marker.lastseen).fromNow();
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var commentString = "";
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var distance = "";
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if (marker.comment) {
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commentString = '<div>' + marker.comment + '</div>';
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}
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if (receiverMarker) {
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distance = " at " + distanceKm(receiverMarker.position, marker.position) + " km";
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}
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infowindow.setContent(
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'<h3>' + linkifySource(source) + distance + '</h3>' +
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'<div>' + timestring + ' using ' + marker.mode + ( marker.band ? ' on ' + marker.band : '' ) + '</div>' +
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commentString
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);
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infowindow.open(map, marker);
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};
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var showReceiverInfoWindow = function(marker) {
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var infowindow = getInfoWindow()
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infowindow.setContent(
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'<h3>' + marker.config['receiver_name'] + '</h3>' +
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'<div>Receiver location</div>'
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);
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infowindow.open(map, marker);
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};
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var getScale = function(lastseen) {
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var age = new Date().getTime() - lastseen;
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var scale = 1;
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if (age >= retention_time / 2) {
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scale = (retention_time - age) / (retention_time / 2);
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}
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return Math.max(0, Math.min(1, scale));
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};
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var getRectangleOpacityOptions = function(lastseen) {
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var scale = getScale(lastseen);
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return {
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strokeOpacity: strokeOpacity * scale,
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fillOpacity: fillOpacity * scale
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};
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};
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var getMarkerOpacityOptions = function(lastseen) {
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var scale = getScale(lastseen);
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return {
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opacity: scale
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};
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};
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// fade out / remove positions after time
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setInterval(function(){
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var now = new Date().getTime();
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Object.values(rectangles).forEach(function(m){
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var age = now - m.lastseen;
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if (age > retention_time) {
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delete rectangles[sourceToKey(m.source)];
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m.setMap();
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return;
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}
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m.setOptions(getRectangleOpacityOptions(m.lastseen));
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});
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Object.values(markers).forEach(function(m) {
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var age = now - m.lastseen;
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if (age > retention_time) {
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delete markers[sourceToKey(m.source)];
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m.setMap();
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return;
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}
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m.setOptions(getMarkerOpacityOptions(m.lastseen));
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});
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}, 1000);
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var rectangleFilter = allRectangles = function() { return true; };
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var filterRectangles = function(filter) {
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rectangleFilter = filter;
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$.each(rectangles, function(_, r) {
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r.setMap(rectangleFilter(r) ? map : undefined);
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});
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};
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var setupLegendFilters = function($legend) {
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$content = $legend.find('.content');
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$content.on('click', 'li', function() {
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var $el = $(this);
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$lis = $content.find('li');
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if ($lis.hasClass('disabled') && !$el.hasClass('disabled')) {
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$lis.removeClass('disabled');
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filterRectangles(allRectangles);
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} else {
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$el.removeClass('disabled');
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$lis.filter(function() {
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return this != $el[0]
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}).addClass('disabled');
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var key = colorMode.slice(2);
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var selector = $el.data('selector');
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filterRectangles(function(r) {
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return r[key] === selector;
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});
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}
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});
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}
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});
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