<?php /** * TActivePanel file. * * @author Wei Zhuo <weizhuo[at]gamil[dot]com> * @link http://www.pradosoft.com/ * @copyright Copyright © 2005-2008 PradoSoft * @license http://www.pradosoft.com/license/ * @version $Id$ * @package System.Web.UI.ActiveControls */ /** * Load active control adapter. */ Prado::using('System.Web.UI.ActiveControls.TActiveControlAdapter'); /** * TActivePanel is the TPanel active control counterpart. * * TActivePanel allows the client-side panel contents to be updated during a * callback response using the {@link flush} method. * * Example: Assume $param is an instance of TCallbackEventParameter attached to * the OnCallback event a TCallback with ID "callback1", and * "panel1" is the ID of a TActivePanel. * <code> * function callback1_requested($sender, $param) * { * $this->panel1->render($param->getNewWriter()); * } * </code> * * @author Wei Zhuo <weizhuo[at]gmail[dot]com> * @version $Id$ * @package System.Web.UI.ActiveControls * @since 3.1 */ class TActivePanel extends TPanel 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 standard active control options. */ public function getActiveControl() { return $this->getAdapter()->getBaseActiveControl(); } /** * Adds attribute id to the renderer. * @param THtmlWriter the writer used for the rendering purpose */ protected function addAttributesToRender($writer) { $writer->addAttribute('id',$this->getClientID()); parent::addAttributesToRender($writer); } /** * Renders and replaces the panel's content on the client-side. * When render() is called before the OnPreRender event, such as when render() * is called during a callback event handler, the rendering * is defered until OnPreRender event is raised. * @param THtmlWriter html writer */ public function render($writer) { if($this->getHasPreRendered()) { parent::render($writer); if($this->getActiveControl()->canUpdateClientSide()) $this->getPage()->getCallbackClient()->replaceContent($this,$writer); } else { $this->getPage()->getAdapter()->registerControlToRender($this,$writer); if ($this->getHasControls()) { // If we update a TActivePanel on callback, // We shouldn't update all childs, because the whole content will be replaced by // the parent foreach ($this->findControlsByType('IActiveControl', false) as $control) { $control->getActiveControl()->setEnableUpdate(false); } } } } }