How to add a Facebook "Like" button to an AJAX driven page
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开发者_高级运维. 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);
$("div#Container").empty().append(elem);
FB.XFBML.parse($("div#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>
SIMPLE SOLUTION
Just parse trigger the parse function when load complete.
If you’re using jQuery, there’s a real easy and slick solution to this problem:
$(document).ajaxComplete(function(){
try{
FB.XFBML.parse();
}catch(ex){}
});
http://developers.facebook.com/docs/reference/plugins/like/
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>
You're making this hard on yourself - just render a new iframe-based one.
<html>
<head>
<title>Test Page</title>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript">
$(function()
{
$( '#ChangeToGoogle' ).click( function( event )
{
event.preventDefault();
$( '#Container' ).empty().append( $('<iframe />')
.attr( 'src', 'http://www.facebook.com/plugins/like.php?href=www.google.com&layout=standard&show_faces=true&width=450&action=like&colorscheme=light&height=80' )
.attr( 'scrolling', 'no' )
.attr( 'frameborder', 'no' )
.attr( 'style', 'border:none; overflow:hidden; width:450px; height:80px;' )
.attr( 'allowTransparency', 'true' )
);
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<a id="ChangeToGoogle" href="#">Change To Google</a>
<div id="Container">
<iframe src="http://www.facebook.com/plugins/like.php?href=www.yahoo.com&layout=standard&show_faces=true&width=450&action=like&colorscheme=light&height=80"
scrolling="no" frameborder="0"
style="border:none; overflow:hidden; width:450px; height:80px;"
allowTransparency="true">
</iframe>
</div>
</form>
</body>
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
}
create like button
<head>
<script src="http://connect.facebook.net/en_US/all.js#xfbml=1"></script>
<script>
window.onload = function(){
var divs = document.getElementsByTagName("span");
for(var i=0; i<divs.length i++){
if(divs[i].className == "likes"){
if(divs[i].title){ var Href = divs[i].title; }else{ var Href = window.location; }
var fb_like = document.createElement("fb:like");
fb_like.setAttribute("href", Href);
fb_like.setAttribute("layout", "box_count");
fb_like.setAttribute("show_faces", "false");
fb_like.setAttribute("width", "55");
document.getElementById("likes2").appendChild(fb_like);
}
}
}
</script>
</head>
<body>
<span class="likes" title="www.bzzs.me"></span>
</body>
Load it after the window loads, this is what works for me:
$(window).load(function(){
$.getScript('http://connect.facebook.net/en_US/all.js', function() {
try{
FB.XFBML.parse();
} catch(ex) {}
});
});
If you're using the jQuery Mobile framework you can run the same code as the accepted answer in the pagecontainershow event which jQuery Mobile uses when it displays a new page.
// initialize new pages
$(document).on("pagecontainershow", (e, ui) =>
{
try
{
FB.XFBML.parse();
} catch (ex) { }
});
加载中,请稍侯......
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