Mark Huot's Loader class for CI. Supports layouts. http://bitbucket.org/markhuot/codeigniter/src/tip/application/core/MY_Loader.php

MY_Loader

<?php

class MY_Loader extends CI_Loader {

	/**
	 * Load View With Layout
	 * http://bitbucket.org/markhuot/codeigniter/src/tip/application/core/MY_Loader.php
	 * This function is used to load a "view" file inside the specified layout.  It has four parameters:
	 *
	 * 1. The name of the "layout" file to be included.
	 * 1. The name of the "view" file to be included.
	 * 2. An associative array of data to be extracted for use in the view.
	 * 3. TRUE/FALSE - whether to return the data or load it.  In
	 * some cases it's advantageous to be able to return data so that
	 * a developer can process it in some way.
	 *
	 * @access	public
	 * @param	string
	 * @param	array
	 * @param	bool
	 * @return	void
	 */
	function view_with_layout($view='', $vars = array(), $return = FALSE, $layout=null)
	{
		$ci =& get_instance();
		
		if ($layout === null)
		{
			$backtrace = debug_backtrace();
			$layout_file = strtolower($backtrace[1]['class']);
			
			if (isset($ci->layout))
			{
				$layout = $ci->layout;
			}
			
			else if(file_exists(APPPATH.'views/layouts/'.$layout_file.EXT))
			{
				$layout = $layout_file;
			}
			
			else if(file_exists(APPPATH.'views/layouts/application'.EXT))
			{
				$layout = 'application';
			}
			
			else
			{
				$layout = false;
			}
		}
		
		if ($layout === FALSE)
		{
			return $this->_ci_load(array('_ci_view' => $view, '_ci_vars' => $this->_ci_object_to_array($vars), '_ci_return' => $return));
		}
		
		$vars['yield'] = $this->_ci_load(array('_ci_view' => $view, '_ci_vars' => $this->_ci_object_to_array($vars), '_ci_return' => TRUE));
		return $this->_ci_load(array('_ci_view' => 'layouts/'.$layout, '_ci_vars' => $this->_ci_object_to_array($vars), '_ci_return' => $return));
	}

	// --------------------------------------------------------------------

}