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Revision: 23988
at February 18, 2010 04:15 by bitmanic
Initial Code 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>Geolocation - Let user choose which result is correct, or auto-assign if only one result is returned.</title>
	<script type="text/javascript" src="http://code.jquery.com/jquery-1.3.2.min.js"></script>
	<script type="text/javascript" src="http://github.com/brandonaaron/livequery/raw/master/jquery.livequery.js"></script>
	<script type="text/javascript">
	/* <![CDATA[ */
		$(document).ready(function(){

			// Hide the result container by default
			$('div#td_msg').hide();
		
			// Helper function that assigns a value to the target text input box
			function assignValue(value){
				var target = $('input#target');
				target.val(value);
				$('div#td_msg').hide('slow');
			}

			// Geocode the address whenever the input box's value changes
			$('input#target').change(function() {
				var dataString = "q=" + $("#target").val().split(" ").join("+") + "&output=json&oe=utf8\&sensor=false&key=ABQIAAAAy9tS-IF2ap3XUdcLPuPSOxQ01e10W64RY7l9Y_lnlyOXiCMlVhTg2tCthvKLlTm5gfHxLY-HjIRkeQ";
				var url = "http://maps.google.com/maps/geo?" + dataString;				
				$.getJSON(url + "&callback=?", function(jsonData){
					if(jsonData.Placemark.length == 1){               // ....................................... If there's only one result,
						assignValue(jsonData.Placemark[0].address);     // ....................................... assign it to the input box.
					} else {                                          // ....................................... Otherwise, 
						$('div#td_msg').html('<ul id="results"></ul>'); // ....................................... create a list for the multiple results.
						$.each(jsonData.Placemark, function(i,result){  // ....................................... For each placemark in the JSON array, we pass its index (i) and value (result),
							$('ul#results').append('<li class="result">'+result.address+'</li>'); // and then append an item to the results list.
						});
						$('div#td_msg').show('slow');                  // ........................................ Then, show the list after it's been populated.
					}
				});
			});

			// Update the input box when a result is clicked
			// We're using the 'LiveQuery' plugin to gain control over elements added via JSON callbacks
			$('ul#results li.result').livequery('click',function(){
				var thisValue = $(this).text();
				assignValue(thisValue);
				return false;
			});
		
		});
	/* ]]> */
	</script>
</head>
<body>

	<form action="/" method="post">
		<fieldset>
			<input id="target" type="text" value="Field 1" />
		</fieldset>
	</form>
	
	<div id="td_msg"></div>	

</body>
</html>
Initial URL 

                                

                                                            

                                    

                                        

                                        Initial Description
                                        

                                    

                                    

                                

                                                            

                                    

                                        

                                        Initial Title
                                        

                                    

                                    
Graceful Geocoding with jQuery

                                

                                                            

                                    

                                        

                                        Initial Tags
                                        

                                    

                                    
javascript, html, google, jquery, json

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
jQuery