* @link http://www.yiiframework.com/
* @copyright 2008-2013 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
/**
* CContentDecorator decorates the content it encloses with the specified view.
*
* CContentDecorator is mostly used to implement nested layouts, i.e., a layout
* is embedded within another layout. {@link CBaseController} defines a pair of
* convenient methods to use CContentDecorator:
*
* $this->beginContent('path/to/view');
* // ... content to be decorated
* $this->endContent();
*
*
* The property {@link view} specifies the name of the view that is used to
* decorate the content. In the view, the content being decorated may be
* accessed with variable $content.
*
* @author Qiang Xue
* @package system.web.widgets
* @since 1.0
*/
class CContentDecorator extends COutputProcessor
{
/**
* @var mixed the name of the view that will be used to decorate the captured content.
* If this property is null (default value), the default layout will be used as
* the decorative view. Note that if the current controller does not belong to
* any module, the default layout refers to the application's {@link CWebApplication::layout default layout};
* If the controller belongs to a module, the default layout refers to the module's
* {@link CWebModule::layout default layout}.
*/
public $view;
/**
* @var array the variables (name=>value) to be extracted and made available in the decorative view.
*/
public $data=array();
/**
* Processes the captured output.
* This method decorates the output with the specified {@link view}.
* @param string $output the captured output to be processed
*/
public function processOutput($output)
{
$output=$this->decorate($output);
parent::processOutput($output);
}
/**
* Decorates the content by rendering a view and embedding the content in it.
* The content being embedded can be accessed in the view using variable $content
* The decorated content will be displayed directly.
* @param string $content the content to be decorated
* @return string the decorated content
*/
protected function decorate($content)
{
$owner=$this->getOwner();
if($this->view===null)
$viewFile=Yii::app()->getController()->getLayoutFile(null);
else
$viewFile=$owner->getViewFile($this->view);
if($viewFile!==false)
{
$data=$this->data;
$data['content']=$content;
return $owner->renderFile($viewFile,$data,true);
}
else
return $content;
}
}