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Simple position tracker
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| <!Doctype html> | |
| <meta name="viewport" content="width=620" /> | |
| <title>KnD-MApPA</title> | |
| <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script> | |
| <article> | |
| <p>Finding You...: <span id="status">Checking...</span> | |
| </p> | |
| </article> | |
| <script> | |
| var map = "", | |
| marker = ""; | |
| function success2(position) { | |
| var latlng = new google.maps.LatLng(position.coords.latitude, position.coords.longitude); | |
| marker = new google.maps.Marker({ | |
| position: latlng, | |
| map: map, | |
| title: "You are here @ " + getDateTime() + | |
| " - ( error margin: " + position.coords.accuracy + " meters )" | |
| }); | |
| }; | |
| function success(position) { | |
| var s = document.querySelector('#status'); | |
| if (s.className == 'success') { | |
| return; | |
| } | |
| s.innerHTML = "I See You!!"; | |
| s.className = 'success'; | |
| var mapcanvas = document.createElement('div'), | |
| mapcanvas.id = 'mapcanvas', | |
| w = window.innerWidth - 100, | |
| h = '360px', | |
| mapcanvas.style.height = h, | |
| mapcanvas.style.width = w, | |
| mapcanvas.style.marginLeft = 'auto', | |
| document.querySelector('article').appendChild(mapcanvas); | |
| var latlng = new google.maps.LatLng(position.coords.latitude, position.coords.longitude), | |
| myOptions = { | |
| zoom: 15, | |
| center: latlng, | |
| mapTypeControl: true, | |
| navigationControlOptions: { | |
| style: google.maps.NavigationControlStyle.SMALL | |
| }, | |
| mapTypeId: google.maps.MapTypeId.HYBRID | |
| }; | |
| map = new google.maps.Map(document.getElementById("mapcanvas"), myOptions), | |
| marker = new google.maps.Marker({ | |
| position: latlng, | |
| map: map, | |
| title: "You are here @ " + | |
| getDateTime() + " ( error margin: " + | |
| position.coords.accuracy + " meters )" | |
| }); | |
| }; | |
| function getDateTime() { | |
| var now = new Date(), | |
| year = now.getFullYear(), | |
| month = (now.getMonth() + 1), | |
| day = now.getDate(), | |
| hour = now.getHours(), | |
| minute = now.getMinutes(), | |
| second = now.getSeconds(); | |
| if (month.toString().length == 1) { | |
| var month = '0' + month; | |
| } | |
| if (day.toString().length == 1) { | |
| var day = '0' + day; | |
| } | |
| if (hour.toString().length == 1) { | |
| var hour = '0' + hour; | |
| } | |
| if (minute.toString().length == 1) { | |
| var minute = '0' + minute; | |
| } | |
| if (second.toString().length == 1) { | |
| var second = '0' + second; | |
| } | |
| var dateTime = month + '/' + day + '/' + year + ' ' + hour + ':' + minute + ':' + second; | |
| return dateTime; | |
| }; | |
| function error(msg) { | |
| var s = document.querySelector('#status'); | |
| s.innerHTML = typeof msg == 'string' ? msg : "failed"; | |
| s.className = 'fail'; | |
| }; | |
| var opts = { enableHighAccuracy: true }, wtch = ""; | |
| if (navigator.geolocation) { | |
| navigator.geolocation.getCurrentPosition(success, error); | |
| wtch = navigator.geolocation.watchPosition(success2, error, opts) | |
| } | |
| else { | |
| error('not supported'); | |
| } | |
| window.onbeforeunload(function(e) { | |
| navigator.geolocation.clearWatch(wtch); | |
| }); | |
| </script> |
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