text: var GFFeedOrder = function( args ) {
  
  	var self = this,
  	    $    = jQuery;
  
  	/**
  	 * Initialize Feed Ordering
  	 */
  	self.init = function() {
  
  		// Assign options to instance.
  		self.options = args;
  
  		// Prepare sorting handle.
  		var sortHandleMarkup = '<td class="sort-column"><i class="fa fa-bars feed-sort-handle"></i></td>';
  
  		// Add sorting handle to table.
  		$( '.wp-list-table thead tr, .wp-list-table tfoot tr' ).append( '<th class="sort-column"></th>' );
  		$( '.wp-list-table tbody tr' ).append( sortHandleMarkup );
  
  		// Initialize sorting.
  		self.initSorting();
  
  	};
  
  	/**
  	 * Initialize jQuery UI Sortable.
  	 */
  	self.initSorting = function() {
  
  		$( '.wp-list-table tbody' ).sortable(
  			{
  				cursor:      'move',
  				handle:      '.feed-sort-handle',
  				placeholder: 'feed-placeholder',
  				tolerance:   'pointer',
  				create:      function() { $( '.wp-list-table' ).addClass( 'feed-list-sortable' ); },
  				helper:      self.fixSortableColumnWidths,
  				start:       self.setPlaceholderHeight,
  				update:      self.updateFeedOrder,
  			}
  		);
  
  	}
  
  	/**
  	 * Fix table column widths.
  	 */
  	self.fixSortableColumnWidths = function( event, tr ) {
  
  		var $originals = tr.children(),
  		    $helper    = tr.clone();
  
  		$helper.children().each( function( index ) {
  			$( this ).width( $originals.eq( index ).width() );
  		} );
  
  		return $helper;
  
  	}
  
  	/**
  	 * Get order of feeds.
  	 */
  	self.getFeedOrder = function() {
  
  		// Get all the checkboxes from the feed list table.
  		var feed_checkboxes = $( '.wp-list-table tbody .check-column input[type="checkbox"]' );
  
  		// Map a function to the feed checkboxes array that returns the checkbox value.
  		return feed_checkboxes.map( function() {
  			return $( this ).val();
  		} ).get();
  
  	}
  
  	/**
  	 * Set height of the placeholder draggable feed.
  	 */
  	self.setPlaceholderHeight = function( event, ui ) {
  
  		// Set the height of the placeholder to the height of the feed being moved.
  		$( '.wp-list-table .feed-placeholder' ).height( ui.item.height() );
  
  	}
  
  	/**
  	 * Save the feed ordering to the database.
  	 */
  	self.updateFeedOrder = function( event, ui ) {
  
  		$.ajax(
  			ajaxurl,
  			{
  				method:   'POST',
  				dataType: 'JSON',
  				data:     {
  					action:     'gf_save_feed_order',
  					addon:      self.options.addon,
  					form_id:    self.options.formId,
  					feed_order: self.getFeedOrder(),
  					nonce:      self.options.nonce,
  				}
  			}
  		);
  
  	}
  
  	this.init();
  
  }
  