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<?php
/**
* TActiveTextBox class file.
*
* @author Wei Zhuo <weizhuo[at]gamil[dot]com>
* @link http://www.pradosoft.com/
* @copyright Copyright © 2006 PradoSoft
* @license http://www.pradosoft.com/license/
* @version $Revision: $ : $
* @package System.Web.UI.ActiveControls
*/
/**
* Load active control adapter.
*/
Prado::using('System.Web.UI.ActiveControls.TActiveControlAdapter');
/**
* TActiveTextBox class.
*
* TActiveTextBox allows the {@link setText Text} property of the textbox to
* be changed during callback. When {@link setAutoPostBack AutoPostBack} property
* is true, changes to the textbox contents will perform a callback request causing
* {@link onTextChanged OnTextChange} to be fired first followed by {@link onCallback OnCallback}
* event.
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @version $Revision: $ Sun Jun 18 20:05:16 EST 2006 $
* @package System.Web.UI.ActiveControls
* @since 3.1
*/
class TActiveTextBox extends TTextBox implements ICallbackEventHandler, 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 TBaseActiveCallbackControl standard callback control options.
*/
public function getActiveControl()
{
return $this->getAdapter()->getBaseActiveControl();
}
/**
* Client-side Text property can only be updated after the OnLoad stage.
* @param string text content for the textbox
*/
public function setText($value)
{
parent::setText($value);
if($this->getActiveControl()->canUpdateClientSide() && $this->getHasLoadedPostData())
$this->getPage()->getCallbackClient()->setValue($this, $value);
}
/**
* Raises the callback event. This method is required by {@link
* ICallbackEventHandler} interface.
* This method is mainly used by framework and control developers.
* @param TCallbackEventParameter the event parameter
*/
public function raiseCallbackEvent($param)
{
$this->onCallback($param);
}
/**
* This method is invoked when a callback is requested. The method raises
* 'OnCallback' event to fire up the event handlers. If you override this
* method, be sure to call the parent implementation so that the event
* handler can be invoked.
* @param TCallbackEventParameter event parameter to be passed to the event handlers
*/
public function onCallback($param)
{
$this->raiseEvent('OnCallback', $this, $param);
}
/**
* Loads user input data.
* This method is primarly used by framework developers.
* @param string the key that can be used to retrieve data from the input data collection
* @param array the input data collection
* @return boolean whether the data of the component has been changed
*/
public function loadPostData($key,$values)
{
$value=$values[$key];
if($this->getAutoTrim())
$value=trim($value);
if(!$this->getReadOnly() && $this->getText()!==$value)
{
$enabled = $this->getActiveControl()->getEnableUpdate();
$this->getActiveControl()->setEnableUpdate(false);
$this->setText($value);
$this->getActiveControl()->setEnableUpdate($enabled);
return true;
}
else
return false;
}
/**
* Renders the javascript for textbox.
*/
protected function renderClientControlScript($writer)
{
$writer->addAttribute('id',$this->getClientID());
$this->getActiveControl()->registerCallbackClientScript(
$this->getClientClassName(), $this->getPostBackOptions());
}
/**
* Gets the name of the javascript class responsible for performing postback for this control.
* This method overrides the parent implementation.
* @return string the javascript class name
*/
protected function getClientClassName()
{
return 'Prado.WebUI.TActiveTextBox';
}
}
?>
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