Merge from 3.0 branch till 1185.

6 files changed, 852 insertions, 830 deletions

diff --git a/framework/Web/THttpRequest.php b/framework/Web/THttpRequest.php
index 4e04ecca..b908db53 100644
--- a/framework/Web/THttpRequest.php
+++ b/framework/Web/THttpRequest.php
@@ -259,7 +259,7 @@ class THttpRequest extends TApplicationComponent implements IteratorAggregate,Ar
 	 */

 	public function getIsSecureConnection()

 	{

-		return !empty($_SERVER['HTTPS']);

+		return isset($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'],'off');

 	}

 

 	/**

@@ -287,6 +287,14 @@ class THttpRequest extends TApplicationComponent implements IteratorAggregate,Ar
 	}

 

 	/**

+	 * @return string schema and hostname of the requested URL

+	 */

+	public function getBaseUrl()

+	{

+		return ($this->getIsSecureConnection() ? "https://" : "http://") . $_SERVER ['HTTP_HOST'];

+	}

+	

+	/**

 	 * @return string entry script URL (w/o host part)

 	 */

 	public function getApplicationUrl()

@@ -295,6 +303,14 @@ class THttpRequest extends TApplicationComponent implements IteratorAggregate,Ar
 	}

 

 	/**

+	 * @return string entry script URL (w/ host part)

+	 */

+	public function getAbsoluteApplicationUrl()

+	{

+		return $this->getBaseUrl() . $this->getApplicationUrl();

+	}

+	

+	/**

 	 * @return string application entry script file path (processed w/ realpath())

 	 */

 	public function getApplicationFilePath()

diff --git a/framework/Web/THttpResponse.php b/framework/Web/THttpResponse.php
index 0c9406c4..e44d6cba 100644
--- a/framework/Web/THttpResponse.php
+++ b/framework/Web/THttpResponse.php
@@ -307,12 +307,15 @@ class THttpResponse extends TModule implements ITextWriter
 	/**

 	 * Redirects the browser to the specified URL.

 	 * The current application will be terminated after this method is invoked.

-	 * @param string URL to be redirected to

+	 * @param string URL to be redirected to. If the URL is a relative one, the base URL of

+	 * the current request will be inserted at the beginning.

 	 */

 	public function redirect($url)

 	{

 		if(!$this->getApplication()->getRequestCompleted())

 			$this->getApplication()->onEndRequest();

+		if($url[0]==='/')

+			$url=$this->getRequest()->getBaseUrl().$url;

 		header('Location:'.$url);

 		exit();

 	}

diff --git a/framework/Web/THttpSession.php b/framework/Web/THttpSession.php
index 379bc7b6..f95cb72d 100644
--- a/framework/Web/THttpSession.php
+++ b/framework/Web/THttpSession.php
@@ -609,7 +609,7 @@ class THttpSession extends TApplicationComponent implements IteratorAggregate,Ar
  *

  * @author Qiang Xue <qiang.xue@gmail.com>

  * @version $Revision: $  $Date: $

- * @package System.Web.UI

+ * @package System.Web

  * @since 3.0

  */

 class TSessionIterator implements Iterator

diff --git a/framework/Web/UI/TTemplateManager.php b/framework/Web/UI/TTemplateManager.php
index 53239bd9..caa1dcbc 100644
--- a/framework/Web/UI/TTemplateManager.php
+++ b/framework/Web/UI/TTemplateManager.php
@@ -850,7 +850,7 @@ class TTemplate extends TApplicationComponent implements ITemplate
 			}

 			$length=strlen($value);

 			if($length>$textStart)

-				$expr.=".'".substr($value,$textStart,$length-$textStart)."'";

+				$expr.=".'".strtr(substr($value,$textStart,$length-$textStart),array("'"=>"\\'","\\"=>"\\\\"))."'";

 			if($isDataBind)

 				return array(self::CONFIG_DATABIND,ltrim($expr,'.'));

 			else

diff --git a/framework/Web/UI/WebControls/TBulletedList.php b/framework/Web/UI/WebControls/TBulletedList.php
index fd9c1ca2..5499a9eb 100644
--- a/framework/Web/UI/WebControls/TBulletedList.php
+++ b/framework/Web/UI/WebControls/TBulletedList.php
@@ -167,7 +167,7 @@ class TBulletedList extends TListControl implements IPostBackEventHandler
 	}

 

 	/**

-	 * @return string style of bullets. Valid values include

+	 * @param string style of bullets. Valid values include

 	 * 'NotSet','Numbered','LowerAlpha','UpperAlpha','LowerRoman','UpperRoman','Disc','Circle','Square','CustomImage'

 	 */

 	public function setBulletStyle($value)

@@ -176,7 +176,7 @@ class TBulletedList extends TListControl implements IPostBackEventHandler
 	}

 

 	/**

-	 * @param string display mode of the list. Defaults to 'Text'.

+	 * @return string display mode of the list. Defaults to 'Text'.

 	 */

 	public function getDisplayMode()

 	{

diff --git a/framework/Web/UI/WebControls/TListControl.php b/framework/Web/UI/WebControls/TListControl.php
index 85b8d88f..a9087af5 100644
--- a/framework/Web/UI/WebControls/TListControl.php
+++ b/framework/Web/UI/WebControls/TListControl.php
@@ -1,824 +1,827 @@
-<?php
-/**
- * TListControl class file
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @link http://www.pradosoft.com/
- * @copyright Copyright &copy; 2005 PradoSoft
- * @license http://www.pradosoft.com/license/
- * @version $Revision: $  $Date: $
- * @package System.Web.UI.WebControls
- */
-
-/**
- * Includes the supporting classes
- */
-Prado::using('System.Web.UI.WebControls.TDataBoundControl');
-Prado::using('System.Web.UI.WebControls.TListItem');
-Prado::using('System.Collections.TAttributeCollection');
-Prado::using('System.Util.TDataFieldAccessor');
-
-
-/**
- * TListControl class
- *
- * TListControl is a base class for list controls, such as {@link TListBox},
- * {@link TDropDownList}, {@link TCheckBoxList}, etc.
- * It manages the items and their status in a list control.
- * It also implements how the items can be populated from template and
- * data source.
- *
- * The property {@link getItems} returns a list of the items in the control.
- * To specify or determine which item is selected, use the
- * {@link getSelectedIndex SelectedIndex} property that indicates the zero-based
- * index of the selected item in the item list. You may also use
- * {@link getSelectedItem SelectedItem} and {@link getSelectedValue SelectedValue}
- * to get the selected item and its value. For multiple selection lists
- * (such as {@link TCheckBoxList} and {@link TListBox}), property
- * {@link getSelectedIndices SelectedIndices} is useful.
- *
- * TListControl implements {@link setAutoPostBack AutoPostBack} which allows
- * a list control to postback the page if the selections of the list items are changed.
- * The {@link setCausesValidation CausesValidation} and {@link setValidationGroup ValidationGroup}
- * properties may be used to specify that validation be performed when auto postback occurs.
- *
- * There are three ways to populate the items in a list control: from template,
- * using {@link setDataSource DataSource} and using {@link setDataSourceID DataSourceID}.
- * The latter two are covered in {@link TDataBoundControl}. To specify items via
- * template, using the following template syntax:
- * <code>
- * <com:TListControl>
- *   <com:TListItem Value="xxx" Text="yyy" >
- *   <com:TListItem Value="xxx" Text="yyy" Selected="true" >
- *   <com:TListItem Value="xxx" Text="yyy" >
- * </com:TListControl>
- * </code>
- *
- * When {@link setDataSource DataSource} or {@link setDataSourceID DataSourceID}
- * is used to populate list items, the {@link setDataTextField DataTextField} and
- * {@link setDataValueField DataValueField} properties are used to specify which
- * columns of the data will be used to populate the text and value of the items.
- * For example, if a data source is as follows,
- * <code>
- * $dataSource=array(
- *    array('name'=>'John', 'age'=>31),
- *    array('name'=>'Cary', 'age'=>28),
- *    array('name'=>'Rose', 'age'=>35),
- * );
- * </code>
- * setting {@link setDataTextField DataTextField} and {@link setDataValueField DataValueField}
- * to 'name' and 'age' will make the first item's text be 'John', value be 31,
- * the second item's text be 'Cary', value be 28, and so on.
- * The {@link setDataTextFormatString DataTextFormatString} property may be further
- * used to format how the item should be displayed. See {@link formatDataValue()}
- * for an explanation of the format string.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Revision: $  $Date: $
- * @package System.Web.UI.WebControls
- * @since 3.0
- */
-abstract class TListControl extends TDataBoundControl
-{
-	/**
-	 * @var TListItemCollection item list
-	 */
-	private $_items=null;
-	/**
-	 * @var boolean whether items are restored from viewstate
-	 */
-	private $_stateLoaded=false;
-	/**
-	 * @var mixed the following selection variables are used
-	 * to keep selections when Items are not available
-	 */
-	private $_cachedSelectedIndex=-1;
-	private $_cachedSelectedValue=null;
-
-	/**
-	 * @return string tag name of the list control
-	 */
-	protected function getTagName()
-	{
-		return 'select';
-	}
-
-	/**
-	 * Adds attributes to renderer.
-	 * @param THtmlWriter the renderer
-	 */
-	protected function addAttributesToRender($writer)
-	{
-		$page=$this->getPage();
-		$page->ensureRenderInForm($this);
-		if($this->getIsMultiSelect())
-			$writer->addAttribute('multiple','multiple');
-		if($this->getEnabled(true))
-		{
-			if($this->getAutoPostBack() && $page->getClientSupportsJavaScript())
-				$this->renderClientControlScript($writer);
-		}
-		else if($this->getEnabled())
-			$writer->addAttribute('disabled','disabled');
-		parent::addAttributesToRender($writer);
-	}
-
-	/**
-	 * Renders the javascript for list control.
-	 */
-	protected function renderClientControlScript($writer)
-	{
-		$writer->addAttribute('id',$this->getClientID());
-		$this->getPage()->getClientScript()->registerPostBackControl($this->getClientClassName(),$this->getPostBackOptions());
-	}
-
-	/**
-	 * Gets the name of the javascript class responsible for performing postback for this control.
-	 * This method overrides the parent implementation.
-	 * @return string the javascript class name
-	 */
-	abstract protected function getClientClassName();
-
-	/**
-	 * @return array postback options for JS postback code
-	 */
-	protected function getPostBackOptions()
-	{
-		$options['ID'] = $this->getClientID();
-		$options['CausesValidation'] = $this->getCausesValidation();
-		$options['ValidationGroup'] = $this->getValidationGroup();
-		$options['EventTarget'] = $this->getUniqueID();
-		return $options;
-	}
-
-	/**
-	 * Adds object parsed from template to the control.
-	 * This method adds only {@link TListItem} objects into the {@link getItems Items} collection.
-	 * All other objects are ignored.
-	 * @param mixed object parsed from template
-	 */
-	public function addParsedObject($object)
-	{
-		// Do not add items from template if items are loaded from viewstate
-		if(!$this->_stateLoaded && ($object instanceof TListItem))
-		{
-			$index=$this->getItems()->add($object);
-			if(($this->_cachedSelectedValue!==null && $this->_cachedSelectedValue===$object->getValue()) || ($this->_cachedSelectedIndex===$index))
-			{
-				$object->setSelected(true);
-				$this->_cachedSelectedValue=null;
-				$this->_cachedSelectedIndex=-1;
-			}
-		}
-	}
-
-	/**
-	 * Performs databinding to populate list items from data source.
-	 * This method is invoked by dataBind().
-	 * You may override this function to provide your own way of data population.
-	 * @param Traversable the data
-	 */
-	protected function performDataBinding($data)
-	{
-		$items=$this->getItems();
-		if(!$this->getAppendDataBoundItems())
-			$items->clear();
-		$textField=$this->getDataTextField();
-		if($textField==='')
-			$textField=0;
-		$valueField=$this->getDataValueField();
-		if($valueField==='')
-			$valueField=1;
-		$textFormat=$this->getDataTextFormatString();
-		foreach($data as $key=>$object)
-		{
-			$item=$items->createListItem();
-			if(is_array($object) || is_object($object))
-			{
-				$text=TDataFieldAccessor::getDataFieldValue($object,$textField);
-				$value=TDataFieldAccessor::getDataFieldValue($object,$valueField);
-				$item->setValue($value);
-			}
-			else
-			{
-				$text=$object;
-				$item->setValue("$key");
-			}
-			$item->setText($this->formatDataValue($textFormat,$text));
-		}
-		// SelectedValue or SelectedIndex may be set before databinding
-		// so we make them be effective now
-		if($this->_cachedSelectedValue!==null)
-		{
-			$index=$items->findIndexByValue($this->_cachedSelectedValue);
-			if($index===-1 || ($this->_cachedSelectedIndex!==-1 && $this->_cachedSelectedIndex!==$index))
-				throw new TInvalidDataValueException('listcontrol_selection_invalid',get_class($this));
-			$this->setSelectedIndex($index);
-			$this->_cachedSelectedValue=null;
-			$this->_cachedSelectedIndex=-1;
-		}
-		else if($this->_cachedSelectedIndex!==-1)
-		{
-			$this->setSelectedIndex($this->_cachedSelectedIndex);
-			$this->_cachedSelectedIndex=-1;
-		}
-	}
-
-	/**
-	 * Creates a collection object to hold list items.
-	 * This method may be overriden to create a customized collection.
-	 * @return TListItemCollection the collection object
-	 */
-	protected function createListItemCollection()
-	{
-		return new TListItemCollection;
-	}
-
-	/**
-	 * Saves items into viewstate.
-	 * This method is invoked right before control state is to be saved.
-	 */
-	public function saveState()
-	{
-		parent::saveState();
-		if($this->_items)
-			$this->setViewState('Items',$this->_items->saveState(),null);
-		else
-			$this->clearViewState('Items');
-	}
-
-	/**
-	 * Loads items from viewstate.
-	 * This method is invoked right after control state is loaded.
-	 */
-	public function loadState()
-	{
-		parent::loadState();
-		$this->_stateLoaded=true;
-		if(!$this->getIsDataBound())
-		{
-			$this->_items=$this->createListItemCollection();
-			$this->_items->loadState($this->getViewState('Items',null));
-		}
-		$this->clearViewState('Items');
-	}
-
-	/**
-	 * @return boolean whether this is a multiselect control. Defaults to false.
-	 */
-	protected function getIsMultiSelect()
-	{
-		return false;
-	}
-
-	/**
-	 * @return boolean whether performing databind should append items or clear the existing ones. Defaults to false.
-	 */
-	public function getAppendDataBoundItems()
-	{
-		return $this->getViewState('AppendDataBoundItems',false);
-	}
-
-	/**
-	 * @param boolean whether performing databind should append items or clear the existing ones.
-	 */
-	public function setAppendDataBoundItems($value)
-	{
-		$this->setViewState('AppendDataBoundItems',TPropertyValue::ensureBoolean($value),false);
-	}
-
-	/**
-	 * @return boolean a value indicating whether an automatic postback to the server
-     * will occur whenever the user makes change to the list control and then tabs out of it.
-     * Defaults to false.
-	 */
-	public function getAutoPostBack()
-	{
-		return $this->getViewState('AutoPostBack',false);
-	}
-
-	/**
-	 * Sets the value indicating if postback automatically.
-	 * An automatic postback to the server will occur whenever the user
-	 * makes change to the list control and then tabs out of it.
-	 * @param boolean the value indicating if postback automatically
-	 */
-	public function setAutoPostBack($value)
-	{
-		$this->setViewState('AutoPostBack',TPropertyValue::ensureBoolean($value),false);
-	}
-
-	/**
-	 * @return boolean whether postback event trigger by this list control will cause input validation, default is true.
-	 */
-	public function getCausesValidation()
-	{
-		return $this->getViewState('CausesValidation',true);
-	}
-
-	/**
-	 * @param boolean whether postback event trigger by this list control will cause input validation.
-	 */
-	public function setCausesValidation($value)
-	{
-		$this->setViewState('CausesValidation',TPropertyValue::ensureBoolean($value),true);
-	}
-
-	/**
-	 * @return string the field of the data source that provides the text content of the list items.
-	 */
-	public function getDataTextField()
-	{
-		return $this->getViewState('DataTextField','');
-	}
-
-	/**
-	 * @param string the field of the data source that provides the text content of the list items.
-	 */
-	public function setDataTextField($value)
-	{
-		$this->setViewState('DataTextField',$value,'');
-	}
-
-	/**
-	 * @return string the formatting string used to control how data bound to the list control is displayed.
-	 */
-	public function getDataTextFormatString()
-	{
-		return $this->getViewState('DataTextFormatString','');
-	}
-
-	/**
-	 * Sets data text format string.
-	 * The format string is used in {@link TDataValueFormatter::format()} to format the Text property value
-	 * of each item in the list control.
-	 * @param string the formatting string used to control how data bound to the list control is displayed.
-	 * @see TDataValueFormatter::format()
-	 */
-	public function setDataTextFormatString($value)
-	{
-		$this->setViewState('DataTextFormatString',$value,'');
-	}
-
-	/**
-	 * @return string the field of the data source that provides the value of each list item.
-	 */
-	public function getDataValueField()
-	{
-		return $this->getViewState('DataValueField','');
-	}
-
-	/**
-	 * @param string the field of the data source that provides the value of each list item.
-	 */
-	public function setDataValueField($value)
-	{
-		$this->setViewState('DataValueField',$value,'');
-	}
-
-	/**
-	 * @return integer the number of items in the list control
-	 */
-	public function getItemCount()
-	{
-		return $this->_items?$this->_items->getCount():0;
-	}
-
-	/**
-	 * @return boolean whether the list control contains any items.
-	 */
-	public function getHasItems()
-	{
-		return ($this->_items && $this->_items->getCount()>0);
-	}
-
-	/**
-	 * @return TListItemCollection the item collection
-	 */
-	public function getItems()
-	{
-		if(!$this->_items)
-			$this->_items=$this->createListItemCollection();
-		return $this->_items;
-	}
-
-	/**
-	 * @return integer the index (zero-based) of the item being selected, -1 if no item is selected.
-	 */
-	public function getSelectedIndex()
-	{
-		if($this->_items)
-		{
-			$n=$this->_items->getCount();
-			for($i=0;$i<$n;++$i)
-				if($this->_items->itemAt($i)->getSelected())
-					return $i;
-		}
-		return -1;
-	}
-
-	/**
-	 * @param integer the index (zero-based) of the item to be selected
-	 */
-	public function setSelectedIndex($index)
-	{
-		if(($index=TPropertyValue::ensureInteger($index))<0)
-			$index=-1;
-		if($this->_items)
-		{
-			$this->clearSelection();
-			if($index>=0 && $index<$this->_items->getCount())
-				$this->_items->itemAt($index)->setSelected(true);
-			else if($index!==-1)
-				throw new TInvalidDataValueException('listcontrol_selectedindex_invalid',get_class($this),$index);
-		}
-		$this->_cachedSelectedIndex=$index;
-	}
-
-	/**
-	 * @return array list of index of items that are selected
-	 */
-	public function getSelectedIndices()
-	{
-		$selections=array();
-		if($this->_items)
-		{
-			$n=$this->_items->getCount();
-			for($i=0;$i<$n;++$i)
-				if($this->_items->itemAt($i)->getSelected())
-					$selections[]=$i;
-		}
-		return $selections;
-	}
-
-	/**
-	 * @param array list of index of items to be selected
-	 */
-	public function setSelectedIndices($indices)
-	{
-		if($this->_items)
-		{
-			$this->clearSelection();
-			$n=$this->_items->getCount();
-			foreach($indices as $index)
-			{
-				if($index>=0 && $index<$n)
-					$this->_items->itemAt($index)->setSelected(true);
-			}
-		}
-	}
-
-	/**
-	 * @return TListItem|null the selected item with the lowest cardinal index, null if no item is selected.
-	 */
-	public function getSelectedItem()
-	{
-		if(($index=$this->getSelectedIndex())>=0)
-			return $this->_items->itemAt($index);
-		else
-			return null;
-	}
-
-	/**
-	 * @return string the value of the selected item with the lowest cardinal index, empty if no selection
-	 */
-	public function getSelectedValue()
-	{
-		$index=$this->getSelectedIndex();
-		return $index>=0?$this->getItems()->itemAt($index)->getValue():'';
-	}
-
-	/**
-	 * Sets selection by item value.
-	 * Existing selections will be cleared if the item value is found in the item collection.
-	 * Note, if the value is null, existing selections will also be cleared.
-	 * @param string the value of the item to be selected.
-	 */
-	public function setSelectedValue($value)
-    {
-	    if($this->_items)
-	    {
-		    if($value===null)
-		    	$this->clearSelection();
-		    else if(($item=$this->_items->findItemByValue($value))!==null)
-	    	{
-		    	$this->clearSelection();
-		    	$item->setSelected(true);
-	    	}
-	    	else
-	    		throw new TInvalidDataValueException('listcontrol_selectedvalue_invalid',get_class($this),$value);
-    	}
-    	$this->_cachedSelectedValue=$value;
-    }
-
-
-	/**
-	 * @return array list of the selected item values (strings)
-	 */
-	public function getSelectedValues()
-	{
-		$values=array();
-		if($this->_items)
-		{
-			foreach($this->_items as $item)
-			{
-				if($item->getSelected())
-					$values[]=$item->getValue();
-			}
-		}
-		return $values;
-	}
-
-	/**
-	 * @param array list of the selected item values
-	 */
-	public function setSelectedValues($values)
-	{
-		if($this->_items)
-		{
-			$this->clearSelection();
-			$lookup=array();
-			foreach($this->_items as $item)
-				$lookup[$item->getValue()]=$item;
-			foreach($values as $value)
-			{
-				if(isset($lookup["$value"]))
-					$lookup["$value"]->setSelected(true);
-		    	else
-		    		throw new TInvalidDataValueException('listcontrol_selectedvalue_invalid',get_class($this),$value);
-			}
-		}
-	}
-
-    /**
-     * @return string selected value
-     */
-    public function getText()
-    {
-	    return $this->getSelectedValue();
-    }
-
-    /**
-     * @param string value to be selected
-     */
-    public function setText($value)
-    {
-	    $this->setSelectedValue($value);
-    }
-
-    /**
-     * Clears all existing selections.
-     */
-    public function clearSelection()
-    {
-	    if($this->_items)
-	    {
-		    foreach($this->_items as $item)
-		    	$item->setSelected(false);
-	    }
-    }
-
-	/**
-	 * @return string the group of validators which the list control causes validation upon postback
-	 */
-	public function getValidationGroup()
-	{
-		return $this->getViewState('ValidationGroup','');
-	}
-
-	/**
-	 * @param string the group of validators which the list control causes validation upon postback
-	 */
-	public function setValidationGroup($value)
-	{
-		$this->setViewState('ValidationGroup',$value,'');
-	}
-
-	/**
-	 * Raises OnSelectedIndexChanged event when selection is changed.
-	 * This method is invoked when the list control has its selection changed
-	 * by end-users.
-	 * @param TEventParameter event parameter
-	 */
-	public function onSelectedIndexChanged($param)
-	{
-		$this->raiseEvent('OnSelectedIndexChanged',$this,$param);
-		$this->onTextChanged($param);
-	}
-
-	/**
-	 * Raises OnTextChanged event when selection is changed.
-	 * This method is invoked when the list control has its selection changed
-	 * by end-users.
-	 * @param TEventParameter event parameter
-	 */
-	public function onTextChanged($param)
-	{
-		$this->raiseEvent('OnTextChanged',$this,$param);
-	}
-
-	/**
-	 * Renders body content of the list control.
-	 * This method renders items contained in the list control as the body content.
-	 * @param THtmlWriter writer
-	 */
-	public function renderContents($writer)
-	{
-		if($this->_items)
-		{
-			$writer->writeLine();
-			foreach($this->_items as $item)
-			{
-				if($item->getEnabled())
-				{
-					if($item->getSelected())
-						$writer->addAttribute('selected','selected');
-					$writer->addAttribute('value',$item->getValue());
-					if($item->getHasAttributes())
-					{
-						foreach($item->getAttributes() as $name=>$value)
-							$writer->addAttribute($name,$value);
-					}
-					$writer->renderBeginTag('option');
-					$writer->write(THttpUtility::htmlEncode($item->getText()));
-					$writer->renderEndTag();
-					$writer->writeLine();
-				}
-			}
-		}
-	}
-
-	/**
-	 * Formats the text value according to a format string.
-	 * If the format string is empty, the original value is converted into
-	 * a string and returned.
-	 * If the format string starts with '#', the string is treated as a PHP expression
-	 * within which the token '{0}' is translated with the data value to be formated.
-	 * Otherwise, the format string and the data value are passed
-	 * as the first and second parameters in {@link sprintf}.
-	 * @param string format string
-	 * @param mixed the data to be formatted
-	 * @return string the formatted result
-	 */
-	protected function formatDataValue($formatString,$value)
-	{
-		if($formatString==='')
-			return TPropertyValue::ensureString($value);
-		else if($formatString[0]==='#')
-		{
-			$expression=strtr(substr($formatString,1),array('{0}'=>'$value'));
-			try
-			{
-				if(eval("\$result=$expression;")===false)
-					throw new Exception('');
-				return $result;
-			}
-			catch(Exception $e)
-			{
-				throw new TInvalidDataValueException('listcontrol_expression_invalid',get_class($this),$expression,$e->getMessage());
-			}
-		}
-		else
-			return sprintf($formatString,$value);
-	}
-}
-
-/**
- * TListItemCollection class.
- *
- * TListItemCollection maintains a list of {@link TListItem} for {@link TListControl}.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Revision: $  $Date: $
- * @package System.Web.UI.WebControls
- * @since 3.0
- */
-class TListItemCollection extends TList
-{
-	/**
-	 * Creates a list item object.
-	 * This method may be overriden to provide a customized list item object.
-	 * @param integer index where the newly created item is to be inserted at.
-	 * If -1, the item will be appended to the end.
-	 * @return TListItem list item object
-	 */
-	public function createListItem($index=-1)
-	{
-		$item=new TListItem;
-		if($index<0)
-			$this->add($item);
-		else
-			$this->insertAt($index,$item);
-		return $item;
-	}
-
-	/**
-	 * Inserts an item into the collection.
-	 * @param integer the location where the item will be inserted.
-	 * The current item at the place and the following ones will be moved backward.
-	 * @param TListItem the item to be inserted.
-	 * @throws TInvalidDataTypeException if the item being inserted is neither a string nor TListItem
-	 */
-	public function insertAt($index,$item)
-	{
-		if($item instanceof TListItem)
-			parent::insertAt($index,$item);
-		else if(is_string($item))
-		{
-			$item=$this->createListItem($index);
-			$item->setText($item);
-		}
-		else
-			throw new TInvalidDataTypeException('listitemcollection_item_invalid',get_class($this));
-	}
-
-	/**
-	 * Finds the lowest cardinal index of the item whose value is the one being looked for.
-	 * @param string the value to be looked for
-	 * @param boolean whether to look for disabled items also
-	 * @return integer the index of the item found, -1 if not found.
-	 */
-	public function findIndexByValue($value,$includeDisabled=true)
-	{
-		$value=TPropertyValue::ensureString($value);
-		$index=0;
-		foreach($this as $item)
-		{
-			if($item->getValue()===$value && ($includeDisabled || $item->getEnabled()))
-				return $index;
-			$index++;
-		}
-		return -1;
-	}
-
-	/**
-	 * Finds the lowest cardinal index of the item whose text is the one being looked for.
-	 * @param string the text to be looked for
-	 * @param boolean whether to look for disabled items also
-	 * @return integer the index of the item found, -1 if not found.
-	 */
-	public function findIndexByText($text,$includeDisabled=true)
-	{
-		$text=TPropertyValue::ensureString($text);
-		$index=0;
-		foreach($this as $item)
-		{
-			if($item->getText()===$text && ($includeDisabled || $item->getEnabled()))
-				return $index;
-			$index++;
-		}
-		return -1;
-	}
-
-	/**
-	 * Finds the item whose value is the one being looked for.
-	 * @param string the value to be looked for
-	 * @param boolean whether to look for disabled items also
-	 * @return TListItem the item found, null if not found.
-	 */
-	public function findItemByValue($value,$includeDisabled=true)
-	{
-		if(($index=$this->findIndexByValue($value,$includeDisabled))>=0)
-			return $this->itemAt($index);
-		else
-			return null;
-	}
-
-	/**
-	 * Finds the item whose text is the one being looked for.
-	 * @param string the text to be looked for
-	 * @param boolean whether to look for disabled items also
-	 * @return TListItem the item found, null if not found.
-	 */
-	public function findItemByText($text,$includeDisabled=true)
-	{
-		if(($index=$this->findIndexByText($text,$includeDisabled))>=0)
-			return $this->itemAt($index);
-		else
-			return null;
-	}
-
-	/**
-	 * Loads state into every item in the collection.
-	 * This method should only be used by framework and control developers.
-	 * @param array|null state to be loaded.
-	 */
-	public function loadState($state)
-	{
-		$this->clear();
-		if($state!==null)
-			$this->copyFrom($state);
-	}
-
-	/**
-	 * Saves state of items.
-	 * This method should only be used by framework and control developers.
-	 * @return array|null the saved state
-	 */
-	public function saveState()
-	{
-		return ($this->getCount()>0) ? $this->toArray() : null;
-	}
-}
-
-?>
+<?php

+/**

+ * TListControl class file

+ *

+ * @author Qiang Xue <qiang.xue@gmail.com>

+ * @link http://www.pradosoft.com/

+ * @copyright Copyright &copy; 2005 PradoSoft

+ * @license http://www.pradosoft.com/license/

+ * @version $Revision: $  $Date: $

+ * @package System.Web.UI.WebControls

+ */

+

+/**

+ * Includes the supporting classes

+ */

+Prado::using('System.Web.UI.WebControls.TDataBoundControl');

+Prado::using('System.Web.UI.WebControls.TListItem');

+Prado::using('System.Collections.TAttributeCollection');

+Prado::using('System.Util.TDataFieldAccessor');

+

+

+/**

+ * TListControl class

+ *

+ * TListControl is a base class for list controls, such as {@link TListBox},

+ * {@link TDropDownList}, {@link TCheckBoxList}, etc.

+ * It manages the items and their status in a list control.

+ * It also implements how the items can be populated from template and

+ * data source.

+ *

+ * The property {@link getItems} returns a list of the items in the control.

+ * To specify or determine which item is selected, use the

+ * {@link getSelectedIndex SelectedIndex} property that indicates the zero-based

+ * index of the selected item in the item list. You may also use

+ * {@link getSelectedItem SelectedItem} and {@link getSelectedValue SelectedValue}

+ * to get the selected item and its value. For multiple selection lists

+ * (such as {@link TCheckBoxList} and {@link TListBox}), property

+ * {@link getSelectedIndices SelectedIndices} is useful.

+ *

+ * TListControl implements {@link setAutoPostBack AutoPostBack} which allows

+ * a list control to postback the page if the selections of the list items are changed.

+ * The {@link setCausesValidation CausesValidation} and {@link setValidationGroup ValidationGroup}

+ * properties may be used to specify that validation be performed when auto postback occurs.

+ *

+ * There are three ways to populate the items in a list control: from template,

+ * using {@link setDataSource DataSource} and using {@link setDataSourceID DataSourceID}.

+ * The latter two are covered in {@link TDataBoundControl}. To specify items via

+ * template, using the following template syntax:

+ * <code>

+ * <com:TListControl>

+ *   <com:TListItem Value="xxx" Text="yyy" >

+ *   <com:TListItem Value="xxx" Text="yyy" Selected="true" >

+ *   <com:TListItem Value="xxx" Text="yyy" >

+ * </com:TListControl>

+ * </code>

+ *

+ * When {@link setDataSource DataSource} or {@link setDataSourceID DataSourceID}

+ * is used to populate list items, the {@link setDataTextField DataTextField} and

+ * {@link setDataValueField DataValueField} properties are used to specify which

+ * columns of the data will be used to populate the text and value of the items.

+ * For example, if a data source is as follows,

+ * <code>

+ * $dataSource=array(

+ *    array('name'=>'John', 'age'=>31),

+ *    array('name'=>'Cary', 'age'=>28),

+ *    array('name'=>'Rose', 'age'=>35),

+ * );

+ * </code>

+ * setting {@link setDataTextField DataTextField} and {@link setDataValueField DataValueField}

+ * to 'name' and 'age' will make the first item's text be 'John', value be 31,

+ * the second item's text be 'Cary', value be 28, and so on.

+ * The {@link setDataTextFormatString DataTextFormatString} property may be further

+ * used to format how the item should be displayed. See {@link formatDataValue()}

+ * for an explanation of the format string.

+ *

+ * @author Qiang Xue <qiang.xue@gmail.com>

+ * @version $Revision: $  $Date: $

+ * @package System.Web.UI.WebControls

+ * @since 3.0

+ */

+abstract class TListControl extends TDataBoundControl

+{

+	/**

+	 * @var TListItemCollection item list

+	 */

+	private $_items=null;

+	/**

+	 * @var boolean whether items are restored from viewstate

+	 */

+	private $_stateLoaded=false;

+	/**

+	 * @var mixed the following selection variables are used

+	 * to keep selections when Items are not available

+	 */

+	private $_cachedSelectedIndex=-1;

+	private $_cachedSelectedValue=null;

+

+	/**

+	 * @return string tag name of the list control

+	 */

+	protected function getTagName()

+	{

+		return 'select';

+	}

+

+	/**

+	 * Adds attributes to renderer.

+	 * @param THtmlWriter the renderer

+	 */

+	protected function addAttributesToRender($writer)

+	{

+		$page=$this->getPage();

+		$page->ensureRenderInForm($this);

+		if($this->getIsMultiSelect())

+			$writer->addAttribute('multiple','multiple');

+		if($this->getEnabled(true))

+		{

+			if($this->getAutoPostBack() && $page->getClientSupportsJavaScript())

+				$this->renderClientControlScript($writer);

+		}

+		else if($this->getEnabled())

+			$writer->addAttribute('disabled','disabled');

+		parent::addAttributesToRender($writer);

+	}

+

+	/**

+	 * Renders the javascript for list control.

+	 */

+	protected function renderClientControlScript($writer)

+	{

+		$writer->addAttribute('id',$this->getClientID());

+		$this->getPage()->getClientScript()->registerPostBackControl($this->getClientClassName(),$this->getPostBackOptions());

+	}

+

+	/**

+	 * Gets the name of the javascript class responsible for performing postback for this control.

+	 * Derived classes may override this method and return customized js class names.

+	 * @return string the javascript class name

+	 */

+	protected function getClientClassName()

+	{

+		return 'Prado.WebUI.TListControl';

+	}

+

+	/**

+	 * @return array postback options for JS postback code

+	 */

+	protected function getPostBackOptions()

+	{

+		$options['ID'] = $this->getClientID();

+		$options['CausesValidation'] = $this->getCausesValidation();

+		$options['ValidationGroup'] = $this->getValidationGroup();

+		$options['EventTarget'] = $this->getUniqueID();

+		return $options;

+	}

+

+	/**

+	 * Adds object parsed from template to the control.

+	 * This method adds only {@link TListItem} objects into the {@link getItems Items} collection.

+	 * All other objects are ignored.

+	 * @param mixed object parsed from template

+	 */

+	public function addParsedObject($object)

+	{

+		// Do not add items from template if items are loaded from viewstate

+		if(!$this->_stateLoaded && ($object instanceof TListItem))

+		{

+			$index=$this->getItems()->add($object);

+			if(($this->_cachedSelectedValue!==null && $this->_cachedSelectedValue===$object->getValue()) || ($this->_cachedSelectedIndex===$index))

+			{

+				$object->setSelected(true);

+				$this->_cachedSelectedValue=null;

+				$this->_cachedSelectedIndex=-1;

+			}

+		}

+	}

+

+	/**

+	 * Performs databinding to populate list items from data source.

+	 * This method is invoked by dataBind().

+	 * You may override this function to provide your own way of data population.

+	 * @param Traversable the data

+	 */

+	protected function performDataBinding($data)

+	{

+		$items=$this->getItems();

+		if(!$this->getAppendDataBoundItems())

+			$items->clear();

+		$textField=$this->getDataTextField();

+		if($textField==='')

+			$textField=0;

+		$valueField=$this->getDataValueField();

+		if($valueField==='')

+			$valueField=1;

+		$textFormat=$this->getDataTextFormatString();

+		foreach($data as $key=>$object)

+		{

+			$item=$items->createListItem();

+			if(is_array($object) || is_object($object))

+			{

+				$text=TDataFieldAccessor::getDataFieldValue($object,$textField);

+				$value=TDataFieldAccessor::getDataFieldValue($object,$valueField);

+				$item->setValue($value);

+			}

+			else

+			{

+				$text=$object;

+				$item->setValue("$key");

+			}

+			$item->setText($this->formatDataValue($textFormat,$text));

+		}

+		// SelectedValue or SelectedIndex may be set before databinding

+		// so we make them be effective now

+		if($this->_cachedSelectedValue!==null)

+		{

+			$index=$items->findIndexByValue($this->_cachedSelectedValue);

+			if($index===-1 || ($this->_cachedSelectedIndex!==-1 && $this->_cachedSelectedIndex!==$index))

+				throw new TInvalidDataValueException('listcontrol_selection_invalid',get_class($this));

+			$this->setSelectedIndex($index);

+			$this->_cachedSelectedValue=null;

+			$this->_cachedSelectedIndex=-1;

+		}

+		else if($this->_cachedSelectedIndex!==-1)

+		{

+			$this->setSelectedIndex($this->_cachedSelectedIndex);

+			$this->_cachedSelectedIndex=-1;

+		}

+	}

+

+	/**

+	 * Creates a collection object to hold list items.

+	 * This method may be overriden to create a customized collection.

+	 * @return TListItemCollection the collection object

+	 */

+	protected function createListItemCollection()

+	{

+		return new TListItemCollection;

+	}

+

+	/**

+	 * Saves items into viewstate.

+	 * This method is invoked right before control state is to be saved.

+	 */

+	public function saveState()

+	{

+		parent::saveState();

+		if($this->_items)

+			$this->setViewState('Items',$this->_items->saveState(),null);

+		else

+			$this->clearViewState('Items');

+	}

+

+	/**

+	 * Loads items from viewstate.

+	 * This method is invoked right after control state is loaded.

+	 */

+	public function loadState()

+	{

+		parent::loadState();

+		$this->_stateLoaded=true;

+		if(!$this->getIsDataBound())

+		{

+			$this->_items=$this->createListItemCollection();

+			$this->_items->loadState($this->getViewState('Items',null));

+		}

+		$this->clearViewState('Items');

+	}

+

+	/**

+	 * @return boolean whether this is a multiselect control. Defaults to false.

+	 */

+	protected function getIsMultiSelect()

+	{

+		return false;

+	}

+

+	/**

+	 * @return boolean whether performing databind should append items or clear the existing ones. Defaults to false.

+	 */

+	public function getAppendDataBoundItems()

+	{

+		return $this->getViewState('AppendDataBoundItems',false);

+	}

+

+	/**

+	 * @param boolean whether performing databind should append items or clear the existing ones.

+	 */

+	public function setAppendDataBoundItems($value)

+	{

+		$this->setViewState('AppendDataBoundItems',TPropertyValue::ensureBoolean($value),false);

+	}

+

+	/**

+	 * @return boolean a value indicating whether an automatic postback to the server

+     * will occur whenever the user makes change to the list control and then tabs out of it.

+     * Defaults to false.

+	 */

+	public function getAutoPostBack()

+	{

+		return $this->getViewState('AutoPostBack',false);

+	}

+

+	/**

+	 * Sets the value indicating if postback automatically.

+	 * An automatic postback to the server will occur whenever the user

+	 * makes change to the list control and then tabs out of it.

+	 * @param boolean the value indicating if postback automatically

+	 */

+	public function setAutoPostBack($value)

+	{

+		$this->setViewState('AutoPostBack',TPropertyValue::ensureBoolean($value),false);

+	}

+

+	/**

+	 * @return boolean whether postback event trigger by this list control will cause input validation, default is true.

+	 */

+	public function getCausesValidation()

+	{

+		return $this->getViewState('CausesValidation',true);

+	}

+

+	/**

+	 * @param boolean whether postback event trigger by this list control will cause input validation.

+	 */

+	public function setCausesValidation($value)

+	{

+		$this->setViewState('CausesValidation',TPropertyValue::ensureBoolean($value),true);

+	}

+

+	/**

+	 * @return string the field of the data source that provides the text content of the list items.

+	 */

+	public function getDataTextField()

+	{

+		return $this->getViewState('DataTextField','');

+	}

+

+	/**

+	 * @param string the field of the data source that provides the text content of the list items.

+	 */

+	public function setDataTextField($value)

+	{

+		$this->setViewState('DataTextField',$value,'');

+	}

+

+	/**

+	 * @return string the formatting string used to control how data bound to the list control is displayed.

+	 */

+	public function getDataTextFormatString()

+	{

+		return $this->getViewState('DataTextFormatString','');

+	}

+

+	/**

+	 * Sets data text format string.

+	 * The format string is used in {@link TDataValueFormatter::format()} to format the Text property value

+	 * of each item in the list control.

+	 * @param string the formatting string used to control how data bound to the list control is displayed.

+	 * @see TDataValueFormatter::format()

+	 */

+	public function setDataTextFormatString($value)

+	{

+		$this->setViewState('DataTextFormatString',$value,'');

+	}

+

+	/**

+	 * @return string the field of the data source that provides the value of each list item.

+	 */

+	public function getDataValueField()

+	{

+		return $this->getViewState('DataValueField','');

+	}

+

+	/**

+	 * @param string the field of the data source that provides the value of each list item.

+	 */

+	public function setDataValueField($value)

+	{

+		$this->setViewState('DataValueField',$value,'');

+	}

+

+	/**

+	 * @return integer the number of items in the list control

+	 */

+	public function getItemCount()

+	{

+		return $this->_items?$this->_items->getCount():0;

+	}

+

+	/**

+	 * @return boolean whether the list control contains any items.

+	 */

+	public function getHasItems()

+	{

+		return ($this->_items && $this->_items->getCount()>0);

+	}

+

+	/**

+	 * @return TListItemCollection the item collection

+	 */

+	public function getItems()

+	{

+		if(!$this->_items)

+			$this->_items=$this->createListItemCollection();

+		return $this->_items;

+	}

+

+	/**

+	 * @return integer the index (zero-based) of the item being selected, -1 if no item is selected.

+	 */

+	public function getSelectedIndex()

+	{

+		if($this->_items)

+		{

+			$n=$this->_items->getCount();

+			for($i=0;$i<$n;++$i)

+				if($this->_items->itemAt($i)->getSelected())

+					return $i;

+		}

+		return -1;

+	}

+

+	/**

+	 * @param integer the index (zero-based) of the item to be selected

+	 */

+	public function setSelectedIndex($index)

+	{

+		if(($index=TPropertyValue::ensureInteger($index))<0)

+			$index=-1;

+		if($this->_items)

+		{

+			$this->clearSelection();

+			if($index>=0 && $index<$this->_items->getCount())

+				$this->_items->itemAt($index)->setSelected(true);

+			else if($index!==-1)

+				throw new TInvalidDataValueException('listcontrol_selectedindex_invalid',get_class($this),$index);

+		}

+		$this->_cachedSelectedIndex=$index;

+	}

+

+	/**

+	 * @return array list of index of items that are selected

+	 */

+	public function getSelectedIndices()

+	{

+		$selections=array();

+		if($this->_items)

+		{

+			$n=$this->_items->getCount();

+			for($i=0;$i<$n;++$i)

+				if($this->_items->itemAt($i)->getSelected())

+					$selections[]=$i;

+		}

+		return $selections;

+	}

+

+	/**

+	 * @param array list of index of items to be selected

+	 */

+	public function setSelectedIndices($indices)

+	{

+		if($this->_items)

+		{

+			$this->clearSelection();

+			$n=$this->_items->getCount();

+			foreach($indices as $index)

+			{

+				if($index>=0 && $index<$n)

+					$this->_items->itemAt($index)->setSelected(true);

+			}

+		}

+	}

+

+	/**

+	 * @return TListItem|null the selected item with the lowest cardinal index, null if no item is selected.

+	 */

+	public function getSelectedItem()

+	{

+		if(($index=$this->getSelectedIndex())>=0)

+			return $this->_items->itemAt($index);

+		else

+			return null;

+	}

+

+	/**

+	 * @return string the value of the selected item with the lowest cardinal index, empty if no selection

+	 */

+	public function getSelectedValue()

+	{

+		$index=$this->getSelectedIndex();

+		return $index>=0?$this->getItems()->itemAt($index)->getValue():'';

+	}

+

+	/**

+	 * Sets selection by item value.

+	 * Existing selections will be cleared if the item value is found in the item collection.

+	 * Note, if the value is null, existing selections will also be cleared.

+	 * @param string the value of the item to be selected.

+	 */

+	public function setSelectedValue($value)

+    {

+	    if($this->_items)

+	    {

+		    if($value===null)

+		    	$this->clearSelection();

+		    else if(($item=$this->_items->findItemByValue($value))!==null)

+	    	{

+		    	$this->clearSelection();

+		    	$item->setSelected(true);

+	    	}

+	    	else

+	    		throw new TInvalidDataValueException('listcontrol_selectedvalue_invalid',get_class($this),$value);

+    	}

+    	$this->_cachedSelectedValue=$value;

+    }

+

+

+	/**

+	 * @return array list of the selected item values (strings)

+	 */

+	public function getSelectedValues()

+	{

+		$values=array();

+		if($this->_items)

+		{

+			foreach($this->_items as $item)

+			{

+				if($item->getSelected())

+					$values[]=$item->getValue();

+			}

+		}

+		return $values;

+	}

+

+	/**

+	 * @param array list of the selected item values

+	 */

+	public function setSelectedValues($values)

+	{

+		if($this->_items)

+		{

+			$this->clearSelection();

+			$lookup=array();

+			foreach($this->_items as $item)

+				$lookup[$item->getValue()]=$item;

+			foreach($values as $value)

+			{

+				if(isset($lookup["$value"]))

+					$lookup["$value"]->setSelected(true);

+		    	else

+		    		throw new TInvalidDataValueException('listcontrol_selectedvalue_invalid',get_class($this),$value);

+			}

+		}

+	}

+

+    /**

+     * @return string selected value

+     */

+    public function getText()

+    {

+	    return $this->getSelectedValue();

+    }

+

+    /**

+     * @param string value to be selected

+     */

+    public function setText($value)

+    {

+	    $this->setSelectedValue($value);

+    }

+

+    /**

+     * Clears all existing selections.

+     */

+    public function clearSelection()

+    {

+	    if($this->_items)

+	    {

+		    foreach($this->_items as $item)

+		    	$item->setSelected(false);

+	    }

+    }

+

+	/**

+	 * @return string the group of validators which the list control causes validation upon postback

+	 */

+	public function getValidationGroup()

+	{

+		return $this->getViewState('ValidationGroup','');

+	}

+

+	/**

+	 * @param string the group of validators which the list control causes validation upon postback

+	 */

+	public function setValidationGroup($value)

+	{

+		$this->setViewState('ValidationGroup',$value,'');

+	}

+

+	/**

+	 * Raises OnSelectedIndexChanged event when selection is changed.

+	 * This method is invoked when the list control has its selection changed

+	 * by end-users.

+	 * @param TEventParameter event parameter

+	 */

+	public function onSelectedIndexChanged($param)

+	{

+		$this->raiseEvent('OnSelectedIndexChanged',$this,$param);

+		$this->onTextChanged($param);

+	}

+

+	/**

+	 * Raises OnTextChanged event when selection is changed.

+	 * This method is invoked when the list control has its selection changed

+	 * by end-users.

+	 * @param TEventParameter event parameter

+	 */

+	public function onTextChanged($param)

+	{

+		$this->raiseEvent('OnTextChanged',$this,$param);

+	}

+

+	/**

+	 * Renders body content of the list control.

+	 * This method renders items contained in the list control as the body content.

+	 * @param THtmlWriter writer

+	 */

+	public function renderContents($writer)

+	{

+		if($this->_items)

+		{

+			$writer->writeLine();

+			foreach($this->_items as $item)

+			{

+				if($item->getEnabled())

+				{

+					if($item->getSelected())

+						$writer->addAttribute('selected','selected');

+					$writer->addAttribute('value',$item->getValue());

+					if($item->getHasAttributes())

+					{

+						foreach($item->getAttributes() as $name=>$value)

+							$writer->addAttribute($name,$value);

+					}

+					$writer->renderBeginTag('option');

+					$writer->write(THttpUtility::htmlEncode($item->getText()));

+					$writer->renderEndTag();

+					$writer->writeLine();

+				}

+			}

+		}

+	}

+

+	/**

+	 * Formats the text value according to a format string.

+	 * If the format string is empty, the original value is converted into

+	 * a string and returned.

+	 * If the format string starts with '#', the string is treated as a PHP expression

+	 * within which the token '{0}' is translated with the data value to be formated.

+	 * Otherwise, the format string and the data value are passed

+	 * as the first and second parameters in {@link sprintf}.

+	 * @param string format string

+	 * @param mixed the data to be formatted

+	 * @return string the formatted result

+	 */

+	protected function formatDataValue($formatString,$value)

+	{

+		if($formatString==='')

+			return TPropertyValue::ensureString($value);

+		else if($formatString[0]==='#')

+		{

+			$expression=strtr(substr($formatString,1),array('{0}'=>'$value'));

+			try

+			{

+				if(eval("\$result=$expression;")===false)

+					throw new Exception('');

+				return $result;

+			}

+			catch(Exception $e)

+			{

+				throw new TInvalidDataValueException('listcontrol_expression_invalid',get_class($this),$expression,$e->getMessage());

+			}

+		}

+		else

+			return sprintf($formatString,$value);

+	}

+}

+

+/**

+ * TListItemCollection class.

+ *

+ * TListItemCollection maintains a list of {@link TListItem} for {@link TListControl}.

+ *

+ * @author Qiang Xue <qiang.xue@gmail.com>

+ * @version $Revision: $  $Date: $

+ * @package System.Web.UI.WebControls

+ * @since 3.0

+ */

+class TListItemCollection extends TList

+{

+	/**

+	 * Creates a list item object.

+	 * This method may be overriden to provide a customized list item object.

+	 * @param integer index where the newly created item is to be inserted at.

+	 * If -1, the item will be appended to the end.

+	 * @return TListItem list item object

+	 */

+	public function createListItem($index=-1)

+	{

+		$item=new TListItem;

+		if($index<0)

+			$this->add($item);

+		else

+			$this->insertAt($index,$item);

+		return $item;

+	}

+

+	/**

+	 * Inserts an item into the collection.

+	 * @param integer the location where the item will be inserted.

+	 * The current item at the place and the following ones will be moved backward.

+	 * @param TListItem the item to be inserted.

+	 * @throws TInvalidDataTypeException if the item being inserted is neither a string nor TListItem

+	 */

+	public function insertAt($index,$item)

+	{

+		if($item instanceof TListItem)

+			parent::insertAt($index,$item);

+		else if(is_string($item))

+		{

+			$item=$this->createListItem($index);

+			$item->setText($item);

+		}

+		else

+			throw new TInvalidDataTypeException('listitemcollection_item_invalid',get_class($this));

+	}

+

+	/**

+	 * Finds the lowest cardinal index of the item whose value is the one being looked for.

+	 * @param string the value to be looked for

+	 * @param boolean whether to look for disabled items also

+	 * @return integer the index of the item found, -1 if not found.

+	 */

+	public function findIndexByValue($value,$includeDisabled=true)

+	{

+		$value=TPropertyValue::ensureString($value);

+		$index=0;

+		foreach($this as $item)

+		{

+			if($item->getValue()===$value && ($includeDisabled || $item->getEnabled()))

+				return $index;

+			$index++;

+		}

+		return -1;

+	}

+

+	/**

+	 * Finds the lowest cardinal index of the item whose text is the one being looked for.

+	 * @param string the text to be looked for

+	 * @param boolean whether to look for disabled items also

+	 * @return integer the index of the item found, -1 if not found.

+	 */

+	public function findIndexByText($text,$includeDisabled=true)

+	{

+		$text=TPropertyValue::ensureString($text);

+		$index=0;

+		foreach($this as $item)

+		{

+			if($item->getText()===$text && ($includeDisabled || $item->getEnabled()))

+				return $index;

+			$index++;

+		}

+		return -1;

+	}

+

+	/**

+	 * Finds the item whose value is the one being looked for.

+	 * @param string the value to be looked for

+	 * @param boolean whether to look for disabled items also

+	 * @return TListItem the item found, null if not found.

+	 */

+	public function findItemByValue($value,$includeDisabled=true)

+	{

+		if(($index=$this->findIndexByValue($value,$includeDisabled))>=0)

+			return $this->itemAt($index);

+		else

+			return null;

+	}

+

+	/**

+	 * Finds the item whose text is the one being looked for.

+	 * @param string the text to be looked for

+	 * @param boolean whether to look for disabled items also

+	 * @return TListItem the item found, null if not found.

+	 */

+	public function findItemByText($text,$includeDisabled=true)

+	{

+		if(($index=$this->findIndexByText($text,$includeDisabled))>=0)

+			return $this->itemAt($index);

+		else

+			return null;

+	}

+

+	/**

+	 * Loads state into every item in the collection.

+	 * This method should only be used by framework and control developers.

+	 * @param array|null state to be loaded.

+	 */

+	public function loadState($state)

+	{

+		$this->clear();

+		if($state!==null)

+			$this->copyFrom($state);

+	}

+

+	/**

+	 * Saves state of items.

+	 * This method should only be used by framework and control developers.

+	 * @return array|null the saved state

+	 */

+	public function saveState()

+	{

+		return ($this->getCount()>0) ? $this->toArray() : null;

+	}

+}

+

+?>