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<?php
/**
* TActiveLabel class file.
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @link http://www.pradosoft.com/
* @copyright Copyright © 2005-2014 PradoSoft
* @license http://www.pradosoft.com/license/
* @package Prado\Web\UI\ActiveControls
*/
namespace Prado\Web\UI\ActiveControls;
/**
* Load active control adapter.
*/
use Prado\Prado;
use Prado\Web\UI\WebControls\TLabel;
/**
* TActiveLabel class
*
* The active control counterpart of TLabel component. When
* {@link TBaseActiveControl::setEnableUpdate ActiveControl.EnableUpdate}
* property is true the 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 also set
* the client-side "for" attribute on the label.
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @package Prado\Web\UI\ActiveControls
* @since 3.1
*/
class TActiveLabel extends TLabel implements IActiveControl
{
/**
* 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));
}
/**
* @return TBaseActiveControl basic active control options.
*/
public function getActiveControl()
{
return $this->getAdapter()->getBaseActiveControl();
}
/**
* On callback response, the inner HTML of the label is updated.
* @param string the text value of the label
*/
public function setText($value)
{
parent::setText($value);
if($this->getActiveControl()->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->getActiveControl()->canUpdateClientSide())
{
$id=$this->findControl($value)->getClientID();
$this->getPage()->getCallbackClient()->setAttribute($this, 'for', $id);
}
}
/**
* Adds attribute id to the renderer.
* @param THtmlWriter the writer used for the rendering purpose
*/
protected function addAttributesToRender($writer) {
$writer->addAttribute('id',$this->getClientID());
parent::addAttributesToRender($writer);
}
}
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