sharedy.js

//FROM http://ad1987.blogspot.com/2010/04/howto-create-facebook-status-message.html
function stripHTML(source){
  var strippedText = source.replace(/<\/?[^>]+(>|$)/g, "");
  return strippedText
}
function replaceURLWithHTMLLinks(source) {
  var exp = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig;
  return source.replace(exp,"<a href='$1' target='_blank'>$1</a>");
}

// Deal With the shares
function add_to_db(message){
  d = {};
  d['message'] = message;
  $.ajax({
    type: 'POST',
    url: '/ajax',
    data: d,
    success: function(json){ if (window.console && window.console.firebug) console.log(json.error);},
    dataType: 'json'
  });
}

//Add the message to to the share list
function add_to_shares(message, embed){
  var post = '<li><p>'+replaceURLWithHTMLLinks(message)+'</p>';
  if (embed != null)
    post += embed;
  post += '</li>';
  $('#shares').prepend(post);
  add_to_db(message);
}

$(document).ready(function() {
  //Bind Handler
  $('#sharebox .sharebutton').bind('click', function(e){
    e.preventDefault();
    var text = stripHTML($('#sharebox .sharecontent').val());	

    //If there is no content in the box just return.
    if (!text || !text.replace(/\s/g, ''))
      return false

    // Find all the urls in the post
    var exp = /(\bhttp:\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig;
    var urls = text.match(exp);
    // We only want one link.
    if (urls != null && urls.length > 1){
      return false
    }else if(urls != null){
      //Call Embedly
      $.embedly(urls[0], {maxWidth: 480, wrapElement: 'div', method : "afterParent"}, 
                function(oembed){
                  if (oembed != null)
                    add_to_shares(text, oembed.code);
                  else
                    add_to_shares(text)
		});
                } else {
                  //No Url just add the text.
                  add_to_shares(text, null);
                }
	});
	//Deal with the links already on the page.
	$('#shares').embedly({maxWidth: 480, wrapElement: 'div', method : "afterParent" });
});