<?php
require_once("db.php");
$arr = $conn->getStreetsList();
?>
<!DOCTYPE html>
<html>
<head>
<title>Edit a street</title>
<script src="js/jquery.min.js"></script>
<link rel="stylesheet" href="css/leaflet.css" />
<script src="js/leaflet.js"></script>
</head>
<body>
<div id="map" style="width: 600px; height: 400px"></div><br />
<input type="button" onclick="drawStreet();" value="Draw a street" /> <input type="button" onclick="resetStreet();" value="Clear map" /><br />
<p>To add a street point click on the map. To remove a street point click on it again.</p>
<form action="updatestreet.php" method="post">
<h1>Edit a street</h1>
<table cellpadding="5" cellspacing="0" border="0">
<tbody>
<tr align="left" valign="top">
<td align="left" valign="top">Street name</td>
<td align="left" valign="top"><select id="street" name="street"><option value="0">Please choose a street</option><?php for($i=0; $i < count($arr); $i++) { print '<option value="'.$arr[$i]['id'].'">'.$arr[$i]['name'].'</option>'; } ?></select></td>
</tr>
<tr align="left" valign="top">
<td align="left" valign="top">Geographic locations</td>
<td align="left" valign="top">
<textarea id="geo" name="geo"></textarea>
<br /><input type="button" onclick="getGeoPoints();" value="Collect points" />
</td>
</tr>
<tr align="left" valign="top">
<td align="left" valign="top">Keywords</td>
<td align="left" valign="top"><textarea name="keywords" id="keywords"></textarea></td>
</tr>
<tr align="left" valign="top">
<td align="left" valign="top"></td>
<td align="left" valign="top"><input type="submit" value="Update"></td>
</tr>
</tbody>
</table>
</form>
<script>
var map = L.map( 'map' ).setView( [51.505, -0.09], 13);
var polyLine;
var draggableStreetMarkers = new Array();
L.tileLayer( 'https://api.mapbox.com/styles/v1/mapbox/streets-v10/tiles/{z}/{x}/{y}?access_token=pk.eyJ1IjoibWVnYTYzODIiLCJhIjoiY2ozbXpsZHgxMDAzNjJxbndweDQ4am5mZyJ9.uHEjtQhnIuva7f6pAfrdTw', {
maxZoom: 18,
attribution: 'Map data © <a href="http://openstreetmap.org/"> OpenStreetMap </a> contributors, ' +
'<a href="http://creativecommons.org/"> CC-BY-SA</a>, ' +
'Imagery ? <a href="http://mapbox.com"> Mapbox </a>',
id: 'examples.map-i875mjb7'
}).addTo(map);
function resetStreet() {
if(polyLine != null) {
map.removeLayer( polyLine );
}
for(i=0; i < draggableStreetMarkers.length; i++) {
map.removeLayer( draggableStreetMarkers[ i ]);
}
draggableStreetMarkers = new Array();
}
function addMarkerStreetPoint( latLng ) {
var streetMarker = L.marker( [latLng.lat, latLng.lng], {draggable: true, zIndexOffset: 900}).addTo(map);
streetMarker.arrayId = draggableStreetMarkers.length;
streetMarker.on('click', function() {
map.removeLayer( draggableStreetMarkers[ this.arrayId ]);
draggableStreetMarkers[ this.arrayId ] = "";
});
draggableStreetMarkers.push( streetMarker );
}
function drawStreet() {
if(polyLine != null) {
map.removeLayer( polyLine );
}
var latLngStreets = new Array();
for(i=0; i< draggableStreetMarkers.length; i++) {
if(draggableStreetMarkers[i] != "") {
latLngStreets.push( L.latLng( draggableStreetMarkers[ i ].getLatLng().lat, draggableStreetMarkers[ i ].getLatLng().lng));
}
}
if(latLngStreets.length > 1) {
// create a red polyline from an array of LatLng points
polyLine = L.polyline( latLngStreets, {color: 'red'}).addTo(map);
}
if(polyLine != null) {
// zoom the map to the polyline
map.fitBounds( polyLine.getBounds());
}
}
function getGeoPoints() {
var points = new Array();
for(var i=0; i <draggableStreetMarkers.length; i++) {
if(draggableStreetMarkers[i] != "") {
points[i] = draggableStreetMarkers[ i ].getLatLng().lng + "," + draggableStreetMarkers[ i ].getLatLng().lat;
}
}
$('#geo').val(points.join(','));
}
$( document ).ready(function() {
map.on('click', function(e) {
addMarkerStreetPoint( e.latlng );
});
$("#street").change(function() {
resetStreet();
for(var i=0;i<arr.length;i++) {
if(arr[i]['id'] == $('#street').val()) {
$('#geo').val(arr[ i ]['geolocations']);
$('#keywords').val(arr[ i ]['keywords']);
arrangePoints(arr[ i ]['geolocations']);
drawStreet();
break;
}
}
});
});
function arrangePoints(geo) {
var linesPin = geo.split(",");
var linesLat = new Array();
var linesLng = new Array();
for(i=0; i < linesPin.length; i++) {
if(i % 2) {
linesLat.push( linesPin[i] );
} else {
linesLng.push( linesPin[i] );
}
}
var latLngLine = new Array();
for(i=0; i<linesLng.length; i++) {
latLngLine.push( L.latLng( linesLat[i], linesLng[i]));
}
for(i=0; i<latLngLine.length; i++) {
addMarkerStreetPoint( latLngLine[i]);
}
}
var arr = JSON.parse( '<?php echo json_encode($arr) ?>' );
</script>
</body>
</html>
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