livemap: internet connection check + nicer dots (#134)

* Check internet connection

* livemap: nicer dots - removed old emoji dots

RX_FSK/data/livemap.js

@@ -1,3 +1,11 @@
+try {
+  var check = $(document);
+} catch (e) {
+  document.addEventListener("DOMContentLoaded", function(event) {
+    document.getElementById('map').innerHTML = '<br /><br />In order to use this functionality, there must be an internet connection.<br /><br/><a href="livemap.html">retry</a><br /><br/><a href="index.html">go back</a>';
+  });
+}
+
 $(document).ready(function(){
 
   var map = L.map('map', { attributionControl: false, zoomControl: false });
@@ -34,15 +42,15 @@ $(document).ready(function(){
 
   map.setView([51.163361,10.447683], 5); // Mitte DE
 
-var reddot = '<span class="ldot rbg"></span> ';
-var yellowdot = '<span class="ldot ybg"></span> ';
-var greendot = '<span class="ldot gbg"></span> ';
+var reddot = '<span class="ldot rbg"></span>';
+var yellowdot = '<span class="ldot ybg"></span>';
+var greendot = '<span class="ldot gbg"></span>';
 
 $('#map .leaflet-control-container').append(L.DomUtil.create('div', 'leaflet-top leaflet-center leaflet-header'));
 var header = '';
 header += '<div id="sonde_main"><b>rdzTTGOSonde LiveMap</b><br />🎈 <b><span id="sonde_id"></span> - <span id="sonde_freq"></span> MHz - <span id="sonde_type"></span></b></div>';
 header += '<div id="sonde_detail"><span id="sonde_alt"></span>m | <span id="sonde_climb"></span>m/s | <span id="sonde_speed"></span>km/h</div>';
-header += '<div id="sonde_status"><small><span id="sonde_statbar"></span></small></div>';
+header += '<div id="sonde_status"><span id="sonde_statbar"></span></div>';
 header += '<div id="settings"><br /><b>Prediction-Settings</b><br />';
 
 header += '<label for="burst">Burst at:</label><input type="text" id="burst" maxlength="5" value="..."  /> m<br />';
@@ -61,7 +69,6 @@ $('.leaflet-footer').append(footer);
 
 var statbar = '';
 headtxt = function(data,stat) {
-  //var staticon = (stat == '1')?'🟢':'🟡';
   var staticon = (stat == '1')?greendot:yellowdot; 
   statbar = staticon + statbar;
   if ((statbar.length) > 10*greendot.length) { statbar = statbar.substring(0,10*greendot.length); }
@@ -87,7 +94,7 @@ headtxt = function(data,stat) {
 
   map.addControl(new L.Control.Button([ { position: 'topleft', text: '🗺️', href: 'javascript:basemap_change();' } ]));
 
-  map.addControl(new L.Control.Button([ { position: 'topright', id: "status", text: '🔴', href: 'javascript:get_data();' } ]));
+  map.addControl(new L.Control.Button([ { position: 'topright', id: "status", text: '', href: 'javascript:get_data();' } ]));
 
   map.addControl(new L.Control.Button([
     { position:'topright', text: '🎈', href: 'javascript:show(marker,\'marker\');' },
@@ -171,18 +178,15 @@ headtxt = function(data,stat) {
         dots.push(location);
         line.setLatLngs(dots);
         storage_write(data);
-        //$('#status').html('🟢');
         $('#status').html(greendot);
         stat = 1;
       } else {
-        //$('#status').html('🟡');
         $('#status').html(yellowdot);
         stat = 0;
       }
       headtxt(data,stat);
       last_data = data;
     } else {
-      //$('#status').html('🟡');
       $('#status').html(yellowdot);
       headtxt(data,0);
     }
@@ -225,14 +229,12 @@ headtxt = function(data,stat) {
   };
 
   get_data = function() {
-      //$('#status').html('🔴');
       $('#status').html(reddot);
       $.ajax({url: 'live.json', success: (function( data ) {
         if (typeof data != "object") { data = $.parseJSON(data); }
         if (data.sonde) {
           draw(data.sonde);
         } else {
-          //setTimeout(function() {$('#status').html('🟡');},100);
           setTimeout(function() {$('#status').html(yellowdot);},100);
         }
         if (data.gps) {

RX_FSK/data/style.css

@@ -244,13 +244,31 @@ p{
 }
 
 .ldot {
-  height: 1em;
-  width: 1em;
+  height: 15px;
+  width: 15px;
+	margin-top: 8px;
+	margin-left: -1px;
   border-radius: 50%;
   display: inline-block;
 }
 
-.ybg { background-color: #E0E000; }
-.gbg { background-color: green; }
-.rbg { background-color: red; }
+.ybg {
+	background-color: orange;
+	background-image: -webkit-gradient(linear, left top, left bottom, from(yellow), to(orange));
+	background-image: linear-gradient(top, yellow, orange);
+}
+.gbg {
+	background-color: green;
+	background-image: -webkit-gradient(linear, left top, left bottom, from(lime), to(green));
+	background-image: linear-gradient(top, lime, green); 
+}
+.rbg { 
+	background-color: red;
+	background-image: -webkit-gradient(linear, left top, left bottom, from(orange), to(red));
+	background-image: linear-gradient(top, orange, red); 
+}
+
+#sonde_statbar .ldot {
+	margin-right: 3px;
+}