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<?php
/**
* TActiveLabel 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.ActiveControls
*/
/**
* TActiveLabel class
*
* The active control counterpart of TLabel component. During a callback
* request, setting {@link setText Text} property will also set the text of the
* label on the client upon callback completion. Similarly, setting {@link
* setForControl ForControl} will set the client-side for attribute on the
* label.
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @version $Revision: $ $Date: $
* @package System.Web.UI.ActiveControls
* @since 3.0
*/
class TActiveLabel extends TLabel
{
/**
* Creates a new callback control, sets the adapter to
* TActiveControlAdapter. If you override this class, be sure to set the
* adapter appropriately by, for example, by calling this constructor.
*/
public function __construct()
{
parent::__construct();
$this->setAdapter(new TActiveControlAdapter($this));
}
/**
* @param boolean true to allow fine grain callback updates.
*/
public function setAllowCallbackUpdate($value)
{
$this->setViewState('CallbackUpdate', TPropertyValue::ensureBoolean($value), true);
}
/**
* @return true to allow fine grain callback updates.
*/
public function getAllowCallbackUpdate()
{
return $this->getViewState('CallbackUpdate', true);
}
/**
* @return true if can update changes on the client-side during callback.
*/
protected function canUpdateClientSide()
{
return $this->getIsInitialized()
&& $this->getPage()->getIsCallback()
&& $this->getAllowCallbackUpdate();
}
/**
* On callback response, the inner HTMl of the label is updated.
* @param string the text value of the label
*/
public function setText($value)
{
parent::setText($value);
if($this->canUpdateClientSide())
$this->getPage()->getCallbackClient()->update($this, $value);
}
/**
* Sets the ID of the control that the label is associated with.
* The control must be locatable via {@link TControl::findControl} using the ID.
* On callback response, the For attribute of the label is updated.
* @param string the associated control ID
*/
public function setForControl($value)
{
parent::setForControl($value);
if($this->canUpdateClientSide())
{
$id=$this->findControl($value)->getClientID();
$this->getPage()->getCallbackClient()->setAttribute($this, 'for', $id);
}
}
}
?>
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