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How to add a Facebook "Like" button to an AJAX driven page

Asked 2010-11-18T21:24:04.197
67

I have trawled the net and Stack Overflow and have not found an adequate answer to this question. Before I start the trial and error process of finding my own solution, I thought I would turn to the Stack Overflow braintrust and see if there was already a successful implementation.

I have an AJAX powered page that degrades properly for non-javascript browsers and SEO. Each click in the AJAX version can be represented by a unique URL.

What I want to do is to dynamically change the HREF of the button. I do understand that this tag is converted to standard HTML at runtime (namely into a nasty table / iframe layout).

I was just wondering if anyone had any insight as to how to implement this FB like button onto AJAX powered pages?

Cheers in advance :)

EDIT:

What do you think of this method I just hacked together? See any huge problems with it?

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>

    <script src="JS/jquery/jquery.js" type="text/javascript"></script>
    <script src="http://connect.facebook.net/en_US/all.js#xfbml=1"></script>

    <script language="javascript" type="text/javascript">
        $("document").ready
        (
            function ()
            {
                CreateNewLikeButton("http://www.yahoo.com")

                $("a#ChangeToGoogle").click
                (
                    function (e)
                    {
                        e.preventDefault();
                        CreateNewLikeButton("http://www.google.ca")
                    }
                );

            }
        );

        function CreateNewLikeButton(url)
        {
            var elem = $(document.createElement("fb:like"));
            elem.attr("href", url);
javascript jquery ajax facebook
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2 Answers

23

This is the solution I ended up going with:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>

    <script src="JS/jquery/jquery.js" type="text/javascript"></script>
    <script src="http://connect.facebook.net/en_US/all.js#xfbml=1"></script>

    <script language="javascript" type="text/javascript">
        $("document").ready
        (
            function ()
            {
                CreateNewLikeButton("http://www.yahoo.com")

                $("#ChangeToGoogle").click
                (
                    function (e)
                    {
                        e.preventDefault();
                        CreateNewLikeButton("http://www.google.ca")
                    }
                );

            }
        );

        function CreateNewLikeButton(url)
        {
            var elem = $(document.createElement("fb:like"));
            elem.attr("href", url);
            $("#Container").empty().append(elem);
            FB.XFBML.parse($("#Container").get(0));
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <a id="ChangeToGoogle" href="#">Change To Google</a>
    <div id="Container">
        <fb:like href="http://www.NEVER_LINK_TO_THIS_12345.com"></fb:like>
    </div>
    </form>
</body>

</html>
answered 2011-04-25T18:07:58.983
2

This is how I handled this situation when I ran into it - seems to work well.

// Set Facebook Like Button with jQuery
setFBLikeButtons = function (container,url,send,layout,width,show_faces,font) {
  // Set Default Args
  if(!send) { send = "false"; }
  if(!layout) { layout = "button_count"; }
  if(!width) { width = "100"; }
  if(!show_faces) { show_faces = "false"; }
  if(!font) { font = "arial"; }

  $(container).empty(); // Remove current like button
  $(container).html('<fb:like href="'+url+'" send="'+send+'" 
       layout="'+layout+'" width="'+width+'" show_faces="'+show_faces+'" 
       font="'+font+'"></fb:like>');
  FB.XFBML.parse(); // This is the magical syrup
}
answered 2011-07-23T03:16:50.723

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