1 <?php

     2 /**

     3  * Zend Framework

     4  *

     5  * LICENSE

     6  *

     7  * This source file is subject to the new BSD license that is bundled

     8  * with this package in the file LICENSE.txt.

     9  * It is also available through the world-wide-web at this URL:

    10  * http://framework.zend.com/license/new-bsd

    11  * If you did not receive a copy of the license and are unable to

    12  * obtain it through the world-wide-web, please send an email

    13  * to license@zend.com so we can send you a copy immediately.

    14  *

    15  * @category   Zend

    16  * @package    Zend_View

    17  * @subpackage Helper

    18  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    19  * @version    $Id: Layout.php 20096 2010-01-06 02:05:09Z bkarwin $

    20  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    21  */

    22 

    23 /** Zend_View_Helper_Abstract.php */

    24 require_once 'Zend/View/Helper/Abstract.php';

    25 

    26 /**

    27  * View helper for retrieving layout object

    28  *

    29  * @package    Zend_View

    30  * @subpackage Helper

    31  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    32  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    33  */

    34 class Zend_View_Helper_Layout extends Zend_View_Helper_Abstract

    35 {

    36     /** @var Zend_Layout */

    37     protected $_layout;

    38 

    39     /**

    40      * Get layout object

    41      *

    42      * @return Zend_Layout

    43      */

    44     public function getLayout()

    45     {

    46         if (null === $this->_layout) {

    47             require_once 'Zend/Layout.php';

    48             $this->_layout = Zend_Layout::getMvcInstance();

    49             if (null === $this->_layout) {

    50                 // Implicitly creates layout object

    51                 $this->_layout = new Zend_Layout();

    52             }

    53         }

    54 

    55         return $this->_layout;

    56     }

    57 

    58     /**

    59      * Set layout object

    60      *

    61      * @param  Zend_Layout $layout

    62      * @return Zend_Layout_Controller_Action_Helper_Layout

    63      */

    64     public function setLayout(Zend_Layout $layout)

    65     {

    66         $this->_layout = $layout;

    67         return $this;

    68     }

    69 

    70     /**

    71      * Return layout object

    72      *

    73      * Usage: $this->layout()->setLayout('alternate');

    74      *

    75      * @return Zend_Layout

    76      */

    77     public function layout()

    78     {

    79         return $this->getLayout();

    80     }

    81 }