Subversion-Projekte lars-tiefland.prado

<?php
/**
 * TActiveLabel class file.
 *
 * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
 * @link http://www.pradosoft.com/
 * @copyright Copyright &copy; 2005-2008 PradoSoft
 * @license http://www.pradosoft.com/license/
 * @version $Id: TActiveLabel.php 2541 2008-10-21 15:05:13Z qiang.xue $
 * @package System.Web.UI.ActiveControls
 */

/**
 * Load active control adapter.
 */
Prado::using('System.Web.UI.ActiveControls.TActiveControlAdapter');

/**
 * 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>
 * @version $Id: TActiveLabel.php 2541 2008-10-21 15:05:13Z qiang.xue $
 * @package System.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);
        }
}