find all youtube links with js (jquery)

Say there is a div that has content and a youtube link. I want to grab that youtube link and embed it.

<div id="content"><p>Here is a cool video.  Check it out: http://www.youtube.com/watch?v=oHg5SJYRHA0</p></div>

I want to grab the link and replace it with the embed code with js (jquery).

Update 1:

This is my js so far:

    $("#content").each(function(){
    var allContent = $(this).html();
    //need regex to find all links with youtube in it, ovbiously it can't == youtube.com, but basically the link has to have youtube.com in it.
    if ($("a",allContent).attr("href") == "youtube.com" ) {
        // grab youtube video id
        /* replace link with <div id="yt-video">
        <object width="560" height="340"><param name="movie" value="http://www.youtube.com/v/429l13dS6kQ&hl=en&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/429l13dS6kQ&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="560" height="340"></embed></object>
        </div>
        */
    }
});

Answers:

Answer

I changed the content from an id to a class because I was guessing you'd have more than one content area?

I'm sure there is a much more efficient way to do this, but this is my attempt at it. Note I suck at regex, so what I have is as close as I can get, I'm sure someone can help improve it, so it doesn't have to replace the ?v= inside the each loop.

HTML

<div class="content"><p>Here is a cool video.  Check it out: http://www.youtube.com/watch?v=oHg5SJYRHA0 and this one http://www.youtube.com/watch?v=fLBPsZVI8Gc&feature=player_embedded</p></div>
<div class="content"><p>Here is a cool video.  Check it out: http://www.youtube.com/watch?v=fLBPsZVI8Gc&feature=player_embedded</p></div>

Script

$(document).ready(function(){
 // I added the video size here in case you wanted to modify it more easily
 var vidWidth = 425;
 var vidHeight = 344;

 $('.content:contains("youtube.com/watch")').each(function(){
  var that = $(this);
  var txt = $(this).html();
  // Tthis could be done by creating an object, adding attributes & inserting parameters, but this is quicker
  var e1 = '<obj'+'ect width="' + vidWidth + '" height="' + vidHeight + '"><param name="movie" value="http://www.youtube.com/v/';
  var e2 = '&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" ' +
   'value="always"></param><em'+'bed src="http://www.youtube.com/v/';
  var e3 = '&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="' + vidWidth +
   '" ' + 'height="' + vidHeight + '"></embed></object> ';

  var vid = txt.match(/((\?v=)(\w[\w|-]*))/g); // end up with ?v=oHg5SJYRHA0
  if (vid.length) {
   $.each(vid, function(i){
    var ytid = this.replace(/\?v=/,'') // end up with oHg5SJYRHA0
    that.append( e1 + ytid + e2 + ytid + e3 ) 
   })
  }
 })
})

I'll be the first to admit it's not pretty, but it works. I also pasted a working version of this code in this pastebin


Update: I've cleaned up the code a bit, here is how it looks now (demo):

$(document).ready(function(){
 // I added the video size here in case you wanted to modify it more easily
 var vidWidth = 425;
 var vidHeight = 344;

 var obj = '<object width="' + vidWidth + '" height="' + vidHeight + '">' +
     '<param name="movie" value="http://www.youtube.com/v/[vid]&hl=en&fs=1">' +
     '</param><param name="allowFullScreen" value="true"></param><param ' +
     'name="allowscriptaccess" value="always"></param><em' +
     'bed src="http://www.youtube.com/v/[vid]&hl=en&fs=1" ' +
     'type="application/x-shockwave-flash" allowscriptaccess="always" ' +
     'allowfullscreen="true" width="' + vidWidth + '" ' + 'height="' +
     vidHeight + '"></embed></object> ';

 $('.content:contains("youtube.com/watch")').each(function(){
  var that = $(this);
  var vid = that.html().match(/(?:v=)([\w\-]+)/g); // end up with v=oHg5SJYRHA0
  if (vid.length) {
   $.each(vid, function(){
    that.append( obj.replace(/\[vid\]/g, this.replace('v=','')) );
   });
  }
 });
});
Answer

I was on pretty much the same track as fudgey, but I suck a regexps even more than him, so I've "borrowed" his code up until that point. One change I have made is to use swfobject to embed the video rather than handrolling the embed code. It just means you have to add the swfobject library to the page

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/swfobject/2.1/swfobject.js"></script>

HTML is the same as fudgey's

<div class="content"><p>Here is a cool video.  Check it out: http://www.youtube.com/watch?v=oHg5SJYRHA0 and this one http://www.youtube.com/watch?v=fLBPsZVI8Gc&feature=player_embedded</p></div>
<div class="content"><p>Here is a cool video.  Check it out: http://www.youtube.com/watch?v=fLBPsZVI8Gc&feature=player_embedded</p></div>

Small change to the javascript

$(function(){
    // I added the video size here in case you wanted to modify it more easily
    var vidWidth = 425;
    var vidHeight = 344;

    $('.content:contains("youtube.com/watch")').each(function(i){
        var that = $(this);
        var txt = $(this).html();       
        var vid = txt.match(/((\?v=)(\w[\w|-]*))/g); // end up with ?v=oHg5SJYRHA0
            if (vid.length) {
                $.each(vid, function(x){
                    var ytid = this.replace(/\?v=/,'') // end up with oHg5SJYRHA0   
                    var playerid = 'videoplayer_' + i + "_" + x; 
                    that.append("<div id='" + playerid + "'></div>");
                    swfobject.embedSWF("http://www.youtube.com/v/" + ytid, playerid, vidWidth, vidHeight, "8");                     
                })
            }
        })
    })

Kudos to Fudgey's answer tho

Answer

You'll need to get the content of the div with something like this:

var text = $("div#content p").html();  // or .text()

With that text, you can use string manipulation or regular expressions to find the url. Then, you can create jquery content to add with:

var content = $('<a href="...">...</a>');

and add it to something with the manipulation methods of jquery, like

var destination = $("body");
destination.append(content);

To get more detail than that, your question will need more details.

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