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<?php
/**
* TStyleSheet class file.
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @link http://www.pradosoft.com/
* @copyright Copyright © 2005 PradoSoft
* @license http://www.pradosoft.com/license/
* @version $Revision: $ $Date: $
* @package System.Web.UI.WebControls
*/
/**
* TStyleSheet class.
*
* TStyleSheet represents the link to a stylesheet file and/or a piece of
* stylesheet code. To specify the link to a CSS file, set {@link setStyleSheetUrl StyleSheetUrl}.
* The child rendering result of TStyleSheet is treated as CSS code and
* is rendered within an appropriate style HTML element.
* Therefore, if the child content is not empty, you should place the TStyleSheet
* control in the head section of your page to conform to the HTML standard.
* If only CSS file URL is specified, you may place the control anywhere on your page
* and the style element will be rendered in the right position.
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @version : $ Tue Jul 4 04:38:16 EST 2006 $
* @package System.Web.UI.WebControl
* @since 3.0.2
*/
class TStyleSheet extends TControl
{
/**
* @param string URL to the stylesheet file
*/
public function setStyleSheetUrl($value)
{
$this->setViewState('StyleSheetUrl', $value);
}
/**
* @return string URL to the stylesheet file
*/
public function getStyleSheetUrl()
{
return $this->getViewState('StyleSheetUrl', '');
}
/**
* Registers the stylesheet file and content to be rendered.
* This method overrides the parent implementation and is invoked right before rendering.
* @param mixed event parameter
*/
public function onPreRender($param)
{
if($this->getEnabled(true))
{
if(($url=$this->getStyleSheetUrl())!=='')
$this->getPage()->getClientScript()->registerStyleSheetFile($url,$url);
}
}
/**
* Renders the control.
* This method overrides the parent implementation and renders nothing.
* @param ITextWriter writer
*/
public function render($writer)
{
$textWriter=new TTextWriter;
parent::renderChildren(new THtmlWriter($textWriter));
if(($css=trim($textWriter->flush()))!=='')
$writer->write("<style type=\"text/css\">\n/*<![CDATA[*/\n{$css}\n/*]]>*/\n</style>\n");
}
}
?>
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