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   1  <?php
   2  /**
   3   * IDataSource, TDataSourceControl, TReadOnlyDataSource class file
   4   *
   5   * @author Qiang Xue <qiang.xue@gmail.com>
   6   * @link http://www.pradosoft.com/
   7   * @copyright Copyright &copy; 2005 PradoSoft
   8   * @license http://www.pradosoft.com/license/
   9   * @version $Id: TDataSourceControl.php 1397 2006-09-07 07:55:53Z wei $
  10   * @package System.Web.UI.WebControls
  11   */
  12  
  13  /**
  14   * IDataSource class
  15   *
  16   * @author Qiang Xue <qiang.xue@gmail.com>
  17   * @version $Id: TDataSourceControl.php 1397 2006-09-07 07:55:53Z wei $
  18   * @package System.Web.UI.WebControls
  19   * @since 3.0
  20   */
  21  interface IDataSource
  22  {
  23  	public function getView($viewName);
  24  	public function getViewNames();
  25  	public function onDataSourceChanged($param);
  26  }
  27  
  28  /**
  29   * TDataSourceControl class
  30   *
  31   * @author Qiang Xue <qiang.xue@gmail.com>
  32   * @version $Id: TDataSourceControl.php 1397 2006-09-07 07:55:53Z wei $
  33   * @package System.Web.UI.WebControls
  34   * @since 3.0
  35   */
  36  abstract class TDataSourceControl extends TControl implements IDataSource
  37  {
  38  	public function getView($viewName)
  39      {
  40          return null;
  41      }
  42  
  43  	public function getViewNames()
  44      {
  45          return array();
  46      }
  47  
  48  	public function onDataSourceChanged($param)
  49      {
  50          $this->raiseEvent('OnDataSourceChanged',$this,$param);
  51      }
  52  
  53  	public function focus()
  54      {
  55          throw new TNotSupportedException('datasourcecontrol_focus_unsupported');
  56      }
  57  
  58  	public function getEnableTheming()
  59      {
  60          return false;
  61      }
  62  
  63  	public function setEnableTheming($value)
  64      {
  65          throw new TNotSupportedException('datasourcecontrol_enabletheming_unsupported');
  66      }
  67  
  68  	public function getSkinID()
  69      {
  70          return '';
  71      }
  72  
  73  	public function setSkinID($value)
  74      {
  75          throw new TNotSupportedException('datasourcecontrol_skinid_unsupported');
  76      }
  77  
  78  	public function getVisible($checkParents=true)
  79      {
  80          return false;
  81      }
  82  
  83  	public function setVisible($value)
  84      {
  85          throw new TNotSupportedException('datasourcecontrol_visible_unsupported');
  86      }
  87  }
  88  
  89  /**
  90   * TDataSourceControl class
  91   *
  92   * @author Qiang Xue <qiang.xue@gmail.com>
  93   * @version $Id: TDataSourceControl.php 1397 2006-09-07 07:55:53Z wei $
  94   * @package System.Web.UI.WebControls
  95   * @since 3.0
  96   */
  97  class TReadOnlyDataSource extends TDataSourceControl
  98  {
  99      private $_dataSource;
 100      private $_dataMember;
 101  
 102  	public function __construct($dataSource,$dataMember)
 103      {
 104          if(!is_array($dataSource) && !($dataSource instanceof IDataSource) && !($dataSource instanceof Traversable))
 105              throw new TInvalidDataTypeException('readonlydatasource_datasource_invalid');
 106          $this->_dataSource=$dataSource;
 107          $this->_dataMember=$dataMember;
 108      }
 109  
 110  	public function getView($viewName)
 111      {
 112          if($this->_dataSource instanceof IDataSource)
 113              return $this->_dataSource->getView($viewName);
 114          else
 115              return new TReadOnlyDataSourceView($this,$this->_dataMember,$this->_dataSource);
 116      }
 117  }
 118  
 119  ?>