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<?php
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/**
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* TActiveTextBox class file.
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*
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* @author Wei Zhuo <weizhuo[at]gamil[dot]com>
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* @link http://www.pradosoft.com/
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* @copyright Copyright © 2005-2008 PradoSoft
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* @license http://www.pradosoft.com/license/
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* @version $Id: TActiveTextBox.php 2541 2008-10-21 15:05:13Z qiang.xue $
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* @package System.Web.UI.ActiveControls
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*/
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/**
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* Load active control adapter.
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*/
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Prado::using('System.Web.UI.ActiveControls.TActiveControlAdapter');
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/**
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* TActiveTextBox class.
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*
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* TActiveTextBox allows the {@link setText Text} property of the textbox to
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* be changed during callback. When {@link setAutoPostBack AutoPostBack} property
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* is true, changes to the textbox contents will perform a callback request causing
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* {@link onTextChanged OnTextChange} to be fired first followed by {@link onCallback OnCallback}
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* event.
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*
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* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
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* @version $Id: TActiveTextBox.php 2541 2008-10-21 15:05:13Z qiang.xue $
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* @package System.Web.UI.ActiveControls
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* @since 3.1
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*/
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class TActiveTextBox extends TTextBox implements ICallbackEventHandler, IActiveControl
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{
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/**
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* Creates a new callback control, sets the adapter to
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* TActiveControlAdapter. If you override this class, be sure to set the
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* adapter appropriately by, for example, by calling this constructor.
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*/
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public function __construct()
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{
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parent::__construct();
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$this->setAdapter(new TActiveControlAdapter($this));
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}
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/**
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* @return TBaseActiveCallbackControl standard callback control options.
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*/
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public function getActiveControl()
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{
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return $this->getAdapter()->getBaseActiveControl();
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}
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/**
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* @return TCallbackClientSide client side request options.
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*/
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public function getClientSide()
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{
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return $this->getAdapter()->getBaseActiveControl()->getClientSide();
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}
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/**
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* Client-side Text property can only be updated after the OnLoad stage.
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* @param string text content for the textbox
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*/
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public function setText($value)
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{
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parent::setText($value);
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if($this->getActiveControl()->canUpdateClientSide() && $this->getHasLoadedPostData())
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$this->getPage()->getCallbackClient()->setValue($this, $value);
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}
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/**
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* Raises the callback event. This method is required by {@link
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* ICallbackEventHandler} interface.
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* This method is mainly used by framework and control developers.
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* @param TCallbackEventParameter the event parameter
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*/
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public function raiseCallbackEvent($param)
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{
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$this->onCallback($param);
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}
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/**
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* This method is invoked when a callback is requested. The method raises
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* 'OnCallback' event to fire up the event handlers. If you override this
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* method, be sure to call the parent implementation so that the event
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* handler can be invoked.
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* @param TCallbackEventParameter event parameter to be passed to the event handlers
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*/
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public function onCallback($param)
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{
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$this->raiseEvent('OnCallback', $this, $param);
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}
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/**
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* Gets the name of the javascript class responsible for performing postback for this control.
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* This method overrides the parent implementation.
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* @return string the javascript class name
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*/
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protected function getClientClassName()
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{
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return 'Prado.WebUI.TActiveTextBox';
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}
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/**
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* Override parent implementation, no javascript is rendered here instead
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* the javascript required for active control is registered in {@link addAttributesToRender}.
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*/
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protected function renderClientControlScript($writer)
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{
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}
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/**
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* Ensure that the ID attribute is rendered and registers the javascript code
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* for initializing the active control.
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*/
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protected function addAttributesToRender($writer)
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{
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parent::addAttributesToRender($writer);
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$writer->addAttribute('id',$this->getClientID());
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$this->getActiveControl()->registerCallbackClientScript(
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$this->getClientClassName(), $this->getPostBackOptions());
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}
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}
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