Subversion-Projekte lars-tiefland.prado

<?php
/**
 * IDataSource, TDataSourceControl, TReadOnlyDataSource class file
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @link http://www.pradosoft.com/
 * @copyright Copyright &copy; 2005-2008 PradoSoft
 * @license http://www.pradosoft.com/license/
 * @version $Id: TDataSourceControl.php 2541 2008-10-21 15:05:13Z qiang.xue $
 * @package System.Web.UI.WebControls
 */

/**
 * IDataSource class
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @version $Id: TDataSourceControl.php 2541 2008-10-21 15:05:13Z qiang.xue $
 * @package System.Web.UI.WebControls
 * @since 3.0
 */
interface IDataSource
{
        public function getView($viewName);
        public function getViewNames();
        public function onDataSourceChanged($param);
}

/**
 * TDataSourceControl class
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @version $Id: TDataSourceControl.php 2541 2008-10-21 15:05:13Z qiang.xue $
 * @package System.Web.UI.WebControls
 * @since 3.0
 */
abstract class TDataSourceControl extends TControl implements IDataSource
{
        public function getView($viewName)
        {
                return null;
        }

        public function getViewNames()
        {
                return array();
        }

        public function onDataSourceChanged($param)
        {
                $this->raiseEvent('OnDataSourceChanged',$this,$param);
        }

        public function focus()
        {
                throw new TNotSupportedException('datasourcecontrol_focus_unsupported');
        }

        public function getEnableTheming()
        {
                return false;
        }

        public function setEnableTheming($value)
        {
                throw new TNotSupportedException('datasourcecontrol_enabletheming_unsupported');
        }

        public function getSkinID()
        {
                return '';
        }

        public function setSkinID($value)
        {
                throw new TNotSupportedException('datasourcecontrol_skinid_unsupported');
        }

        public function getVisible($checkParents=true)
        {
                return false;
        }

        public function setVisible($value)
        {
                throw new TNotSupportedException('datasourcecontrol_visible_unsupported');
        }
}

/**
 * TDataSourceControl class
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @version $Id: TDataSourceControl.php 2541 2008-10-21 15:05:13Z qiang.xue $
 * @package System.Web.UI.WebControls
 * @since 3.0
 */
class TReadOnlyDataSource extends TDataSourceControl
{
        private $_dataSource;
        private $_dataMember;

        public function __construct($dataSource,$dataMember)
        {
                if(!is_array($dataSource) && !($dataSource instanceof IDataSource) && !($dataSource instanceof Traversable))
                        throw new TInvalidDataTypeException('readonlydatasource_datasource_invalid');
                $this->_dataSource=$dataSource;
                $this->_dataMember=$dataMember;
        }

        public function getView($viewName)
        {
                if($this->_dataSource instanceof IDataSource)
                        return $this->_dataSource->getView($viewName);
                else
                        return new TReadOnlyDataSourceView($this,$this->_dataMember,$this->_dataSource);
        }
}