<?php /** * TActiveRepeater class file * * @author LANDWEHR Computer und Software GmbH <programmierung@landwehr-software.de> * @package System.Web.UI.ActiveControls * @since 3.1.9 * @version $Id: TActiveRepeater.php 2707 2009-09-29 10:33:30Z Christophe.Boulain $ */ /** * TActiveRepeater class * * TActiveRepeater represents a data bound and updatable grid control which is the * active counterpart to the original {@link TRepeater} control. * * This component can be used in the same way as the regular datagrid, the only * difference is that the active repeater uses callbacks instead of postbacks * for interaction. * * Please refer to the original documentation of the regular counterparts for usage. * * @author LANDWEHR Computer und Software GmbH <programmierung@landwehr-software.de> * @package System.Web.UI.ActiveControls * @since 3.1.9 */ class TActiveRepeater extends TRepeater implements IActiveControl, ISurroundable { /** * Creates a new callback control, sets the adapter to * TActiveControlAdapter. */ public function __construct() { parent::__construct(); $this->setAdapter(new TActiveControlAdapter($this)); } /** * @return TBaseActiveControl standard active control options. */ public function getActiveControl() { return $this->getAdapter()->getBaseActiveControl(); } /** * Sets the data source object associated with the repeater control. * In addition, the render method of all connected pagers is called so they * get updated when the data source is changed. Also the repeater registers * itself for rendering in order to get it's content replaced on client side. * @param Traversable|array|string data source object */ public function setDataSource($value) { parent::setDataSource($value); if($this->getActiveControl()->canUpdateClientSide()) { $this->renderPager(); $this->getPage()->getAdapter()->registerControlToRender($this,$this->getResponse()->createHtmlWriter()); } } /** * Returns the id of the surrounding container (span). * @return string container id */ public function getSurroundingTagID() { return $this->ClientID.'_Container'; } /** * Renders the repeater. * If the repeater did not pass the prerender phase yet, it will register itself for rendering later. * Else it will call the {@link renderRepeater()} method which will do the rendering of the repeater. * @param THtmlWriter writer for the rendering purpose */ public function render($writer) { if($this->getHasPreRendered()) { $this->renderRepeater($writer); if($this->getActiveControl()->canUpdateClientSide()) $this->getPage()->getCallbackClient()->replaceContent($this->getSurroundingTagId(),$writer); } else { $this->getPage()->getAdapter()->registerControlToRender($this,$writer); } } /** * Loops through all {@link TActivePager} on the page and registers the ones which are set to paginate * the repeater for rendering. This is to ensure that the connected pagers are also rendered if the * data source changed. */ private function renderPager() { $pager=$this->getPage()->findControlsByType('TActivePager', false); foreach($pager as $item) { if($item->ControlToPaginate==$this->ID) { $writer=$this->getResponse()->createHtmlWriter(); $this->getPage()->getAdapter()->registerControlToRender($item,$writer); } } } /** * Renders the repeater by writing a span tag with the container id obtained from {@link getSurroundingTagID()} * which will be called by the replacement method of the client script to update it's content. * @param THtmlWriter writer for the rendering purpose */ private function renderRepeater($writer) { $writer->addAttribute('id',$this->getSurroundingTagID()); $writer->renderBeginTag('span'); parent::render($writer); $writer->renderEndTag(); } }