Converting theme widgets to plugins?

Question

i need a help, i have a theme, where in i have a twitter widget, i just want to separate it, and keep it in different file, as if it is a plugin, here are is the complete code, what i have to do?

this code was in file admin-functions.php

/*-----------------------------------------------------------------------------------*/
/* Twitter's Blogger.js output for Twitter widgets */
/*-----------------------------------------------------------------------------------*/

function woo_twitter_script($unique_id,$username,$limit) {
?>
<script type="text/javascript">
<!--//--><![CDATA[//><!--

    function twitterCallback2(twitters) {
      var statusHTML = [];
      for (var i=0; i<twitters.length; i++){
        var username = twitters[i].user.screen_name;
        var status = twitters[i].text.replace(/((https?|s?ftp|ssh)\:\/\/[^"\s\<\>]*[^.,;'">\:\s\<\>\)\]\!])/g, function(url) {
          return '<a href="'+url+'">'+url+'</a>';
        }).replace(/\B@([_a-z0-9]+)/ig, function(reply) {
          return  reply.charAt(0)+'<a href="http://twitter.com/'+reply.substring(1)+'">'+reply.substring(1)+'</a>';
        });
        statusHTML.push('<li><span>'+status+'</span> <a style="font-size:85%" href="http://twitter.com/'+username+'/statuses/'+twitters[i].id+'">'+relative_time(twitters[i].created_at)+'</a></li>');
      }
      document.getElementById('twitter_update_list_<?php echo $unique_id; ?>').innerHTML = statusHTML.join('');
    }

    function relative_time(time_value) {
      var values = time_value.split(" ");
      time_value = values[1] + " " + values[2] + ", " + values[5] + " " + values[3];
      var parsed_date = Date.parse(time_value);
      var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
      var delta = parseInt((relative_to.getTime() - parsed_date) / 1000);
      delta = delta + (relative_to.getTimezoneOffset() * 60);

      if (delta < 60) {
        return 'less than a minute ago';
      } else if(delta < 120) {
        return 'about a minute ago';
      } else if(delta < (60*60)) {
        return (parseInt(delta / 60)).toString() + ' minutes ago';
      } else if(delta < (120*60)) {
        return 'about an hour ago';
      } else if(delta < (24*60*60)) {
        return 'about ' + (parseInt(delta / 3600)).toString() + ' hours ago';
      } else if(delta < (48*60*60)) {
        return '1 day ago';
      } else {
        return (parseInt(delta / 86400)).toString() + ' days ago';
      }
    }
//-->!]]>
</script>
<script type="text/javascript" src="http://twitter.com/statuses/user_timeline/<?php echo $username; ?>.json?callback=twitterCallback2&amp;count=<?php echo $limit; ?>"></script>

`

and this second code i found in theme-widget.php

`

/*---------------------------------------------------------------------------------*/
/* Twitter widget */
/*---------------------------------------------------------------------------------*/
class Woo_Twitter extends WP_Widget {

   function Woo_Twitter() {
       $widget_ops = array('description' => 'Add your Twitter feed to your sidebar with this widget.' );
       parent::WP_Widget(false, __('Woo - Twitter Stream', 'woothemes'),$widget_ops);      
   }

   function widget($args, $instance) {  
    extract( $args );
    $title = $instance['title'];
    $limit = $instance['limit']; if (!$limit) $limit = 5;
    $username = $instance['username'];
    $unique_id = $args['widget_id'];
    ?>
        <?php echo $before_widget; ?>
        <?php if ($title) echo $before_title . $title . $after_title; ?>
        <ul id="twitter_update_list_<?php echo $unique_id; ?>"><li></li></ul>   
        <?php echo woo_twitter_script($unique_id,$username,$limit); //Javascript output function ?>  
        <?php echo $after_widget; ?>


    <?php
   }

   function update($new_instance, $old_instance) {                
       return $new_instance;
   }

   function form($instance) {        

       $title = esc_attr($instance['title']);
       $limit = esc_attr($instance['limit']);
       $username = esc_attr($instance['username']);
       ?>
       <p>
           <label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:','woothemes'); ?></label>
           <input type="text" name="<?php echo $this->get_field_name('title'); ?>"  value="<?php echo $title; ?>" class="widefat" id="<?php echo $this->get_field_id('title'); ?>" />
       </p>
       <p>
           <label for="<?php echo $this->get_field_id('username'); ?>"><?php _e('Username:','woothemes'); ?></label>
           <input type="text" name="<?php echo $this->get_field_name('username'); ?>"  value="<?php echo $username; ?>" class="widefat" id="<?php echo $this->get_field_id('username'); ?>" />
       </p>
       <p>
           <label for="<?php echo $this->get_field_id('limit'); ?>"><?php _e('Limit:','woothemes'); ?></label>
           <input type="text" name="<?php echo $this->get_field_name('limit'); ?>"  value="<?php echo $limit; ?>" class="" size="3" id="<?php echo $this->get_field_id('limit'); ?>" />

       </p>
      <?php
   }

} 
register_widget('Woo_Twitter');

i just want this code to be a different file, just like a plugin, so that i can use this in my another theme also, can anyone help me here???

Answer 1

Other than order of execution it doesn't really matter where code is run.

In general case you can move code to Functions File (functions.php) of theme or create simple plugin and it will still work.

In this specific case the code seems to be part of WooFramework so you will need to additionally check so that it isn't declared twice (causing error), for example by using function_exists().