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<?php
/**
* TTextProcessor class file
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link https://github.com/pradosoft/prado
* @copyright Copyright © 2005-2016 The PRADO Group
* @license https://github.com/pradosoft/prado/blob/master/COPYRIGHT
* @package System.Web.UI.WebControls
*/
/**
* TTextProcessor class.
*
* TTextProcessor is the base class for classes that process or transform
* text content into different forms. The text content to be processed
* is specified by {@link setText Text} property. If it is not set, the body
* content enclosed within the processor control will be processed and rendered.
* The body content includes static text strings and the rendering result
* of child controls.
*
* Note, all child classes must implement {@link processText} method.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @package System.Web.UI
* @since 3.0.1
*/
abstract class TTextProcessor extends TWebControl
{
/**
* Processes a text string.
* This method must be implemented by child classes.
* @param string text string to be processed
* @return string the processed text result
*/
abstract public function processText($text);
/**
* HTML-decodes static text.
* This method overrides parent implementation.
* @param mixed object to be added as body content
*/
public function addParsedObject($object)
{
if(is_string($object))
$object=html_entity_decode($object,ENT_QUOTES,'UTF-8');
parent::addParsedObject($object);
}
/**
* @return string text to be processed
*/
public function getText()
{
return $this->getViewState('Text','');
}
/**
* @param string text to be processed
*/
public function setText($value)
{
$this->setViewState('Text',$value);
}
/**
* Renders body content.
* This method overrides the parent implementation by replacing
* the body content with the processed text content.
* @param THtmlWriter writer
*/
public function renderContents($writer)
{
if(($text=$this->getText())==='' && $this->getHasControls())
{
$htmlWriter = Prado::createComponent($this->GetResponse()->getHtmlWriterType(), new TTextWriter());
parent::renderContents($htmlWriter);
$text=$htmlWriter->flush();
}
if($text!=='')
$writer->write($this->processText($text));
}
}
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