Subversion-Projekte lars-tiefland.prado

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

Prado::using('System.Web.UI.ActiveControls.TTriggeredCallback');

/**
 * TEventTriggeredCallback Class
 *
 * Triggers a new callback request when a particular {@link setEventName EventName}
 * on a control with ID given by {@link setControlID ControlID} is raised.
 *
 * The default action of the event on the client-side can be prevented when
 * {@link setPreventDefaultAction PreventDefaultAction} is set to true.
 *
 * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
 * @version $Id: TEventTriggeredCallback.php 2541 2008-10-21 15:05:13Z qiang.xue $
 * @package System.Web.UI.ActiveControls
 * @since 3.1
 */
class TEventTriggeredCallback extends TTriggeredCallback
{
        /**
         * @return string The client-side event name the trigger listens to.
         */
        public function getEventName()
        {
                return $this->getViewState('EventName', '');
        }

        /**
         * Sets the client-side event name that fires the callback request.
         * @param string The client-side event name the trigger listens to.
         */
        public function setEventName($value)
        {
                $this->setViewState('EventName', $value, '');
        }

        /**
         * @param boolean true to prevent/stop default event action.
         */
        public function setPreventDefaultAction($value)
        {
                $this->setViewState('StopEvent', TPropertyValue::ensureBoolean($value), false);
        }

        /**
         * @return boolean true to prevent/stop default event action.
         */
        public function getPreventDefaultAction()
        {
                return $this->getViewState('StopEvent', false);
        }

        /**
         * @return array list of timer options for client-side.
         */
        protected function getTriggerOptions()
        {
                $options = parent::getTriggerOptions();
                $name = preg_replace('/^on/', '', $this->getEventName());
                $options['EventName'] = strtolower($name);
                $options['StopEvent'] = $this->getPreventDefaultAction();
                return $options;
        }

        /**
         * Registers the javascript code for initializing the active control.
         * @param THtmlWriter the renderer.
         */
        public function render($writer)
        {
                parent::render($writer);
                $this->getActiveControl()->registerCallbackClientScript(
                        $this->getClientClassName(), $this->getTriggerOptions());
        }

        /**
         * @return string corresponding javascript class name for TEventTriggeredCallback.
         */
        protected function getClientClassName()
        {
                return 'Prado.WebUI.TEventTriggeredCallback';
        }
}