1 files changed, 636 insertions, 456 deletions
diff --git a/framework/Web/UI/TClientScriptManager.php b/framework/Web/UI/TClientScriptManager.php
index cc5289c5..ca28751f 100644
--- a/framework/Web/UI/TClientScriptManager.php
+++ b/framework/Web/UI/TClientScriptManager.php
@@ -1,457 +1,637 @@
-<?php
-
-class TPostBackOptions extends TComponent
-{
-	public $_actionUrl='';
-	public $_autoPostBack=false;
-	public $_clientSubmit=true;
-	public $_performValidation=false;
-	public $_validationGroup='';
-	public $_trackFocus=false;
-
-	public function getActionUrl()
-	{
-		return $this->_actionUrl;
-	}
-
-	public function setActionUrl($value)
-	{
-		$this->_actionUrl=THttpUtility::quoteJavaScriptString($value);
-	}
-
-	public function getAutoPostBack()
-	{
-		return $this->_autoPostBack;
-	}
-
-	public function setAutoPostBack($value)
-	{
-		$this->_autoPostBack=$value;
-	}
-
-	public function getClientSubmit()
-	{
-		return $this->_clientSubmit;
-	}
-
-	public function setClientSubmit($value)
-	{
-		$this->_clientSubmit=$value;
-	}
-
-	public function getPerformValidation()
-	{
-		return $this->_performValidation;
-	}
-
-	public function setPerformValidation($value)
-	{
-		$this->_performValidation=$value;
-	}
-
-	public function getValidationGroup()
-	{
-		return $this->_validationGroup;
-	}
-
-	public function setValidationGroup($value)
-	{
-		$this->_validationGroup=$value;
-	}
-
-	public function getTrackFocus()
-	{
-		return $this->_trackFocus;
-	}
-
-	public function setTrackFocus($value)
-	{
-		$this->_trackFocus=$value;
-	}
-}
-
-class TClientScriptManager extends TComponent
-{
-	const SCRIPT_DIR='Web/Javascripts/js';
-	const POSTBACK_FUNC='Prado.doPostBack';
-	private $_page;
-	private $_hiddenFields=array();
-	private $_beginScripts=array();
-	private $_endScripts=array();
-	private $_scriptFiles=array();
-	private $_headScriptFiles=array();
-	private $_headScripts=array();
-	private $_styleSheetFiles=array();
-	private $_styleSheets=array();
-	private $_onSubmitStatements=array();
-	private $_arrayDeclares=array();
-	private $_expandoAttributes=array();
-	private $_postBackScriptRegistered=false;
-	private $_focusScriptRegistered=false;
-	private $_scrollScriptRegistered=false;
-	private $_publishedScriptFiles=array();
-
-	public function __construct(TPage $owner)
-	{
-		$this->_page=$owner;
-	}
-
-	public function getPostBackEventReference($control,$parameter='',$options=null,$javascriptPrefix=true)
-	{
-		if(!$options || (!$options->getPerformValidation() && !$options->getTrackFocus() && $options->getClientSubmit() && $options->getActionUrl()==''))
-		{
-			$this->registerPostBackScript();
-			if(($form=$this->_page->getForm())!==null)
-				$formID=$form->getClientID();
-			else
-				throw new TInvalidConfigurationException('clientscriptmanager_form_required');
-			$postback=self::POSTBACK_FUNC.'(\''.$formID.'\',\''.$control->getUniqueID().'\',\''.THttpUtility::quoteJavaScriptString($parameter).'\')';
-			if($options && $options->getAutoPostBack())
-				$postback='setTimeout(\''.THttpUtility::quoteJavaScriptString($postback).'\',0)';
-			return $javascriptPrefix?'javascript:'.$postback:$postback;
-		}
-		$opt='';
-		$flag=false;
-		if($options->getPerformValidation())
-		{
-			$flag=true;
-			$this->registerValidationScript();
-			$opt.=',true,';
-		}
-		else
-			$opt.=',false,';
-		if($options->getValidationGroup()!=='')
-		{
-			$flag=true;
-			$opt.='"'.$options->getValidationGroup().'",';
-		}
-		else
-			$opt.='\'\',';
-		if($options->getActionUrl()!=='')
-		{
-			$flag=true;
-			$this->_page->setCrossPagePostBack(true);
-			$opt.='"'.$options->getActionUrl().'",';
-		}
-		else
-			$opt.='null,';
-		if($options->getTrackFocus())
-		{
-			$flag=true;
-			$this->registerFocusScript();
-			$opt.='true,';
-		}
-		else
-			$opt.='false,';
-		if($options->getClientSubmit())
-		{
-			$flag=true;
-			$opt.='true';
-		}
-		else
-			$opt.='false';
-		if(!$flag)
-			return '';
-		$this->registerPostBackScript();
-		if(($form=$this->_page->getForm())!==null)
-			$formID=$form->getClientID();
-		else
-			throw new TInvalidConfigurationException('clientscriptmanager_form_required');
-		$postback=self::POSTBACK_FUNC.'(\''.$formID.'\',\''.$control->getUniqueID().'\',\''.THttpUtility::quoteJavaScriptString($parameter).'\''.$opt.')';
-		if($options && $options->getAutoPostBack())
-			$postback='setTimeout(\''.THttpUtility::quoteJavaScriptString($postback).'\',0)';
-		return $javascriptPrefix?'javascript:'.$postback:$postback;
-	}
-
-	public function registerPradoScript($scriptFile)
-	{
-		if(isset($this->_publishedScriptFiles[$scriptFile]))
-			$url=$this->_publishedScriptFiles[$scriptFile];
-		else
-		{
-			$url=$this->_page->getService()->getAssetManager()->publishFilePath(Prado::getFrameworkPath().'/'.self::SCRIPT_DIR.'/'.$scriptFile);
-			$this->_publishedScriptFiles[$scriptFile]=$url;
-			$this->registerScriptFile('prado:'.$scriptFile,$url);
-		}
-		return $url;
-	}
-
-	protected function registerPostBackScript()
-	{
-		if(!$this->_postBackScriptRegistered)
-		{
-			$this->_postBackScriptRegistered=true;
-			$this->registerHiddenField(TPage::FIELD_POSTBACK_TARGET,'');
-			$this->registerHiddenField(TPage::FIELD_POSTBACK_PARAMETER,'');
-			$this->registerPradoScript('base.js');
-		}
-	}
-
-	public function registerFocusScript($target)
-	{
-		if(!$this->_focusScriptRegistered)
-		{
-			$this->_focusScriptRegistered=true;
-			$this->registerPradoScript('base.js');
-			$this->registerEndScript('prado:focus','Prado.Focus.setFocus("'.THttpUtility::quoteJavaScriptString($target).'");');
-		}
-	}
-
-	public function registerScrollScript($x,$y)
-	{
-		if(!$this->_scrollScriptRegistered)
-		{
-			$this->_scrollScriptRegistered=true;
-			$this->registerHiddenField(TPage::FIELD_SCROLL_X,$x);
-			$this->registerHiddenField(TPage::FIELD_SCROLL_Y,$y);
-			// TBD, need scroll.js
-		}
-	}
-
-	public function registerDefaultButtonScript($button)
-	{
-		$this->registerPradoScript('base.js');
-		return 'return Prado.Button.fireButton(event,\''.$button->getClientID().'\')';
-	}
-
-	public function registerValidationScript()
-	{
-	}
-
-	public function isHiddenFieldRegistered($key)
-	{
-		return isset($this->_hiddenFields[$key]);
-	}
-
-	public function isScriptRegistered($key)
-	{
-		return isset($this->_scripts[$key]);
-	}
-
-	public function isScriptFileRegistered($key)
-	{
-		return isset($this->_scriptFiles[$key]);
-	}
-
-	public function isBeginScriptRegistered($key)
-	{
-		return isset($this->_beginScripts[$key]);
-	}
-
-	public function isEndScriptRegistered($key)
-	{
-		return isset($this->_endScripts[$key]);
-	}
-
-	public function isHeadScriptFileRegistered($key)
-	{
-		return isset($this->_headScriptFiles[$key]);
-	}
-
-	public function isHeadScriptRegistered($key)
-	{
-		return isset($this->_headScripts[$key]);
-	}
-
-	public function isStyleSheetFileRegistered($key)
-	{
-		return isset($this->_styleSheetFiles[$key]);
-	}
-
-	public function isStyleSheetRegistered($key)
-	{
-		return isset($this->_styleSheets[$key]);
-	}
-
-	public function isOnSubmitStatementRegistered($key)
-	{
-		return isset($this->_onSubmitStatements[$key]);
-	}
-
-	public function registerArrayDeclaration($name,$value)
-	{
-		$this->_arrayDeclares[$name][]=$value;
-	}
-
-	public function registerScriptFile($key,$url)
-	{
-		$this->_scriptFiles[$key]=$url;
-	}
-
-	public function registerHiddenField($name,$value)
-	{
-		// if the named hidden field exists and has a value null, it means the hidden field is rendered already
-		if(!isset($this->_hiddenFields[$name]) || $this->_hiddenFields[$name]!==null)
-			$this->_hiddenFields[$name]=$value;
-	}
-
-	public function registerOnSubmitStatement($key,$script)
-	{
-		$this->_onSubmitStatements[$key]=$script;
-	}
-
-	public function registerBeginScript($key,$script)
-	{
-		$this->_beginScripts[$key]=$script;
-	}
-
-	public function registerEndScript($key,$script)
-	{
-		$this->_endScripts[$key]=$script;
-	}
-
-	public function registerHeadScriptFile($key,$url)
-	{
-		$this->_headScriptFiles[$key]=$url;
-	}
-
-	public function registerHeadScript($key,$script)
-	{
-		$this->_headScripts[$key]=$script;
-	}
-
-	public function registerStyleSheetFile($key,$url)
-	{
-		$this->_styleSheetFiles[$key]=$url;
-	}
-
-	public function registerStyleSheet($key,$css)
-	{
-		$this->_styleSheets[$key]=$css;
-	}
-
-	public function registerExpandoAttribute($controlID,$name,$value)
-	{
-		$this->_expandoAttributes[$controlID][$name]=$value;
-	}
-
-	public function renderArrayDeclarations($writer)
-	{
-		if(count($this->_arrayDeclares))
-		{
-			$str="<script type=\"text/javascript\">\n//<![CDATA[\n";
-			foreach($this->_arrayDeclares as $name=>$array)
-				$str.="var $name=new Array(".implode(',',$array).");\n";
-			$str.="\n//]]>\n</script>\n";
-			$writer->write($str);
-		}
-	}
-
-	public function renderScriptFiles($writer)
-	{
-		$str='';
-		foreach($this->_scriptFiles as $include)
-			$str.="<script type=\"text/javascript\" src=\"".THttpUtility::htmlEncode($include)."\"></script>\n";
-		$writer->write($str);
-	}
-
-	public function renderOnSubmitStatements($writer)
-	{
-		// ???
-	}
-
-	public function renderBeginScripts($writer)
-	{
-		if(count($this->_beginScripts))
-			$writer->write("<script type=\"text/javascript\">\n//<![CDATA[\n".implode("\n",$this->_beginScripts)."\n//]]>\n</script>\n");
-	}
-
-	public function renderEndScripts($writer)
-	{
-		if(count($this->_endScripts))
-			$writer->write("<script type=\"text/javascript\">\n//<![CDATA[\n".implode("\n",$this->_endScripts)."\n//]]>\n</script>\n");
-	}
-
-	public function renderHiddenFields($writer)
-	{
-		$str='';
-		foreach($this->_hiddenFields as $name=>$value)
-		{
-			if($value!==null)
-			{
-				$value=THttpUtility::htmlEncode($value);
-				$str.="<input type=\"hidden\" name=\"$name\" id=\"$name\" value=\"$value\" />\n";
-				// set hidden field value to null to indicate this field is rendered
-				// Note, hidden field rendering is invoked twice (at the beginning and ending of TForm)
-				$this->_hiddenFields[$name]=null;
-			}
-		}
-		if($str!=='')
-			$writer->write("<div>\n".$str."</div>\n");
-	}
-
-	public function renderExpandoAttributes($writer)
-	{
-		if(count($this->_expandoAttributes))
-		{
-			$str="<script type=\"text/javascript\">\n//<![CDATA[\n";
-			foreach($this->_expandoAttributes as $controlID=>$attrs)
-			{
-				$str.="var $controlID = document.all ? document.all[\"$controlID\"] : document.getElementById(\"$controlID\");\n";
-				foreach($attrs as $name=>$value)
-				{
-					if($value===null)
-						$str.="{$key}[\"$name\"]=null;\n";
-					else
-						$str.="{$key}[\"$name\"]=\"$value\";\n";
-				}
-			}
-			$str.="\n//]]>\n</script>\n";
-			$writer->write($str);
-		}
-	}
-
-	public function renderHeadScriptFiles($writer)
-	{
-		$str='';
-		foreach($this->_headScriptFiles as $url)
-			$str.="<script type=\"text/javascript\" src=\"".THttpUtility::htmlEncode($url)."\"></script>\n";
-		$writer->write($str);
-	}
-
-	public function renderHeadScripts($writer)
-	{
-		if(count($this->_headScripts))
-			$writer->write("<script type=\"text/javascript\">\n//<![CDATA[\n".implode("\n",$this->_headScripts)."\n//]]>\n</script>\n");
-	}
-
-	public function renderStyleSheetFiles($writer)
-	{
-		$str='';
-		foreach($this->_styleSheetFiles as $url)
-		{
-			$str.="<link rel=\"stylesheet\" type=\"text/css\" href=\"".THttpUtility::htmlEncode($url)."\" />\n";
-		}
-		$writer->write($str);
-	}
-
-	public function renderStyleSheets($writer)
-	{
-		if(count($this->_styleSheets))
-			$writer->write("<style type=\"text/css\">\n".implode("\n",$this->_styleSheets)."\n</style>\n");
-	}
-
-	public function getHasHiddenFields()
-	{
-		return count($this->_hiddenFields)>0;
-	}
-
-	public function getHasSubmitStatements()
-	{
-		return count($this->_onSubmitStatements)>0;
-	}
-
-
-	/*
-	private void EnsureEventValidationFieldLoaded();
-	internal string GetEventValidationFieldValue();
-	public string GetWebResourceUrl(Type type, string resourceName);
-	public void RegisterClientScriptResource(Type type, string resourceName);
-	internal void RegisterDefaultButtonScript(Control button, $writer, bool useAddAttribute);
-	public function SaveEventValidationField();
-	public void ValidateEvent(string uniqueId, string argument);
-	public function getCallbackEventReference()
-	*/
-}
-
+<?php
+
+class TPostBackOptions extends TComponent
+{
+	public $_actionUrl='';
+	public $_autoPostBack=false;
+	public $_clientSubmit=true;
+	public $_performValidation=false;
+	public $_validationGroup='';
+	public $_trackFocus=false;
+
+	public function getActionUrl()
+	{
+		return $this->_actionUrl;
+	}
+
+	public function setActionUrl($value)
+	{
+		$this->_actionUrl=THttpUtility::quoteJavaScriptString($value);
+	}
+
+	public function getAutoPostBack()
+	{
+		return $this->_autoPostBack;
+	}
+
+	public function setAutoPostBack($value)
+	{
+		$this->_autoPostBack=$value;
+	}
+
+	public function getClientSubmit()
+	{
+		return $this->_clientSubmit;
+	}
+
+	public function setClientSubmit($value)
+	{
+		$this->_clientSubmit=$value;
+	}
+
+	public function getPerformValidation()
+	{
+		return $this->_performValidation;
+	}
+
+	public function setPerformValidation($value)
+	{
+		$this->_performValidation=$value;
+	}
+
+	public function getValidationGroup()
+	{
+		return $this->_validationGroup;
+	}
+
+	public function setValidationGroup($value)
+	{
+		$this->_validationGroup=$value;
+	}
+
+	public function getTrackFocus()
+	{
+		return $this->_trackFocus;
+	}
+
+	public function setTrackFocus($value)
+	{
+		$this->_trackFocus=$value;
+	}
+}
+
+class TClientScriptManager extends TComponent
+{
+	const SCRIPT_DIR='Web/Javascripts/js';
+	const POSTBACK_FUNC='Prado.doPostBack';
+	private $_page;
+	private $_hiddenFields=array();
+	private $_beginScripts=array();
+	private $_endScripts=array();
+	private $_scriptFiles=array();
+	private $_headScriptFiles=array();
+	private $_headScripts=array();
+	private $_styleSheetFiles=array();
+	private $_styleSheets=array();
+	private $_onSubmitStatements=array();
+	private $_arrayDeclares=array();
+	private $_expandoAttributes=array();
+	private $_postBackScriptRegistered=false;
+	private $_focusScriptRegistered=false;
+	private $_scrollScriptRegistered=false;
+	private $_publishedScriptFiles=array();
+
+	public function __construct(TPage $owner)
+	{
+		$this->_page=$owner;
+	}
+
+	public function getPostBackEventReference($control,$parameter='',$options=null,$javascriptPrefix=true)
+	{
+		if(!$options || (!$options->getPerformValidation() && !$options->getTrackFocus() && $options->getClientSubmit() && $options->getActionUrl()==''))
+		{
+			$this->registerPostBackScript();
+			if(($form=$this->_page->getForm())!==null)
+				$formID=$form->getClientID();
+			else
+				throw new TInvalidConfigurationException('clientscriptmanager_form_required');
+			$postback=self::POSTBACK_FUNC.'(\''.$formID.'\',\''.$control->getUniqueID().'\',\''.THttpUtility::quoteJavaScriptString($parameter).'\')';
+			if($options && $options->getAutoPostBack())
+				$postback='setTimeout(\''.THttpUtility::quoteJavaScriptString($postback).'\',0)';
+			return $javascriptPrefix?'javascript:'.$postback:$postback;
+		}
+		$opt='';
+		$flag=false;
+		if($options->getPerformValidation())
+		{
+			$flag=true;
+			$this->registerValidationScript();
+			$opt.=',true,';
+		}
+		else
+			$opt.=',false,';
+		if($options->getValidationGroup()!=='')
+		{
+			$flag=true;
+			$opt.='"'.$options->getValidationGroup().'",';
+		}
+		else
+			$opt.='\'\',';
+		if($options->getActionUrl()!=='')
+		{
+			$flag=true;
+			$this->_page->setCrossPagePostBack(true);
+			$opt.='"'.$options->getActionUrl().'",';
+		}
+		else
+			$opt.='null,';
+		if($options->getTrackFocus())
+		{
+			$flag=true;
+			$this->registerFocusScript();
+			$opt.='true,';
+		}
+		else
+			$opt.='false,';
+		if($options->getClientSubmit())
+		{
+			$flag=true;
+			$opt.='true';
+		}
+		else
+			$opt.='false';
+		if(!$flag)
+			return '';
+		$this->registerPostBackScript();
+		if(($form=$this->_page->getForm())!==null)
+			$formID=$form->getClientID();
+		else
+			throw new TInvalidConfigurationException('clientscriptmanager_form_required');
+		$postback=self::POSTBACK_FUNC.'(\''.$formID.'\',\''.$control->getUniqueID().'\',\''.THttpUtility::quoteJavaScriptString($parameter).'\''.$opt.')';
+		if($options && $options->getAutoPostBack())
+			$postback='setTimeout(\''.THttpUtility::quoteJavaScriptString($postback).'\',0)';
+		return $javascriptPrefix?'javascript:'.$postback:$postback;
+	}
+
+	public function registerPradoScript($script)
+	{
+		foreach(TPradoClientScript::getScript($script) as $scriptFile)
+		{
+			if(isset($this->_publishedScriptFiles[$scriptFile]))
+				$url=$this->_publishedScriptFiles[$scriptFile];
+			else
+			{
+				$url=$this->_page->getService()->getAssetManager()->publishFilePath(Prado::getFrameworkPath().'/'.self::SCRIPT_DIR.'/'.$scriptFile);
+				$this->_publishedScriptFiles[$scriptFile]=$url;
+				$this->registerScriptFile('prado:'.$scriptFile,$url);
+			}
+		}
+		//return $url;
+	}
+
+	protected function registerPostBackScript()
+	{
+		if(!$this->_postBackScriptRegistered)
+		{
+			$this->_postBackScriptRegistered=true;
+			$this->registerHiddenField(TPage::FIELD_POSTBACK_TARGET,'');
+			$this->registerHiddenField(TPage::FIELD_POSTBACK_PARAMETER,'');
+			$this->registerPradoScript('base');
+		}
+	}
+
+	public function registerFocusScript($target)
+	{
+		if(!$this->_focusScriptRegistered)
+		{
+			$this->_focusScriptRegistered=true;
+			$this->registerPradoScript('base');
+			$this->registerEndScript('prado:focus','Prado.Focus.setFocus("'.THttpUtility::quoteJavaScriptString($target).'");');
+		}
+	}
+
+	public function registerScrollScript($x,$y)
+	{
+		if(!$this->_scrollScriptRegistered)
+		{
+			$this->_scrollScriptRegistered=true;
+			$this->registerHiddenField(TPage::FIELD_SCROLL_X,$x);
+			$this->registerHiddenField(TPage::FIELD_SCROLL_Y,$y);
+			// TBD, need scroll.js
+		}
+	}
+
+	public function registerDefaultButtonScript($button)
+	{
+		$this->registerPradoScript('base');
+		return 'return Prado.Button.fireButton(event,\''.$button->getClientID().'\')';
+	}
+
+	public function registerValidationScript()
+	{
+	}
+
+	public function isHiddenFieldRegistered($key)
+	{
+		return isset($this->_hiddenFields[$key]);
+	}
+
+	public function isScriptRegistered($key)
+	{
+		return isset($this->_scripts[$key]);
+	}
+
+	public function isScriptFileRegistered($key)
+	{
+		return isset($this->_scriptFiles[$key]);
+	}
+
+	public function isBeginScriptRegistered($key)
+	{
+		return isset($this->_beginScripts[$key]);
+	}
+
+	public function isEndScriptRegistered($key)
+	{
+		return isset($this->_endScripts[$key]);
+	}
+
+	public function isHeadScriptFileRegistered($key)
+	{
+		return isset($this->_headScriptFiles[$key]);
+	}
+
+	public function isHeadScriptRegistered($key)
+	{
+		return isset($this->_headScripts[$key]);
+	}
+
+	public function isStyleSheetFileRegistered($key)
+	{
+		return isset($this->_styleSheetFiles[$key]);
+	}
+
+	public function isStyleSheetRegistered($key)
+	{
+		return isset($this->_styleSheets[$key]);
+	}
+
+	public function isOnSubmitStatementRegistered($key)
+	{
+		return isset($this->_onSubmitStatements[$key]);
+	}
+
+	public function registerArrayDeclaration($name,$value)
+	{
+		$this->_arrayDeclares[$name][]=$value;
+	}
+
+	public function registerScriptFile($key,$url)
+	{
+		$this->_scriptFiles[$key]=$url;
+	}
+
+	public function registerHiddenField($name,$value)
+	{
+		// if the named hidden field exists and has a value null, it means the hidden field is rendered already
+		if(!isset($this->_hiddenFields[$name]) || $this->_hiddenFields[$name]!==null)
+			$this->_hiddenFields[$name]=$value;
+	}
+
+	public function registerOnSubmitStatement($key,$script)
+	{
+		$this->_onSubmitStatements[$key]=$script;
+	}
+
+	public function registerBeginScript($key,$script)
+	{
+		$this->_beginScripts[$key]=$script;
+	}
+
+	public function registerEndScript($key,$script)
+	{
+		$this->_endScripts[$key]=$script;
+	}
+
+	public function registerHeadScriptFile($key,$url)
+	{
+		$this->_headScriptFiles[$key]=$url;
+	}
+
+	public function registerHeadScript($key,$script)
+	{
+		$this->_headScripts[$key]=$script;
+	}
+
+	public function registerStyleSheetFile($key,$url)
+	{
+		$this->_styleSheetFiles[$key]=$url;
+	}
+
+	public function registerStyleSheet($key,$css)
+	{
+		$this->_styleSheets[$key]=$css;
+	}
+
+	public function registerExpandoAttribute($controlID,$name,$value)
+	{
+		$this->_expandoAttributes[$controlID][$name]=$value;
+	}
+
+	public function renderArrayDeclarations($writer)
+	{
+		if(count($this->_arrayDeclares))
+		{
+			$str="<script type=\"text/javascript\">\n//<![CDATA[\n";
+			foreach($this->_arrayDeclares as $name=>$array)
+				$str.="var $name=new Array(".implode(',',$array).");\n";
+			$str.="\n//]]>\n</script>\n";
+			$writer->write($str);
+		}
+	}
+
+	public function renderScriptFiles($writer)
+	{
+		$str='';
+		foreach($this->_scriptFiles as $include)
+			$str.="<script type=\"text/javascript\" src=\"".THttpUtility::htmlEncode($include)."\"></script>\n";
+		$writer->write($str);
+	}
+
+	public function renderOnSubmitStatements($writer)
+	{
+		// ???
+	}
+
+	public function renderBeginScripts($writer)
+	{
+		if(count($this->_beginScripts))
+			$writer->write("<script type=\"text/javascript\">\n//<![CDATA[\n".implode("\n",$this->_beginScripts)."\n//]]>\n</script>\n");
+	}
+
+	public function renderEndScripts($writer)
+	{
+		if(count($this->_endScripts))
+			$writer->write("<script type=\"text/javascript\">\n//<![CDATA[\n".implode("\n",$this->_endScripts)."\n//]]>\n</script>\n");
+	}
+
+	public function renderHiddenFields($writer)
+	{
+		$str='';
+		foreach($this->_hiddenFields as $name=>$value)
+		{
+			if($value!==null)
+			{
+				$value=THttpUtility::htmlEncode($value);
+				$str.="<input type=\"hidden\" name=\"$name\" id=\"$name\" value=\"$value\" />\n";
+				// set hidden field value to null to indicate this field is rendered
+				// Note, hidden field rendering is invoked twice (at the beginning and ending of TForm)
+				$this->_hiddenFields[$name]=null;
+			}
+		}
+		if($str!=='')
+			$writer->write("<div>\n".$str."</div>\n");
+	}
+
+	public function renderExpandoAttributes($writer)
+	{
+		if(count($this->_expandoAttributes))
+		{
+			$str="<script type=\"text/javascript\">\n//<![CDATA[\n";
+			foreach($this->_expandoAttributes as $controlID=>$attrs)
+			{
+				$str.="var $controlID = document.all ? document.all[\"$controlID\"] : document.getElementById(\"$controlID\");\n";
+				foreach($attrs as $name=>$value)
+				{
+					if($value===null)
+						$str.="{$key}[\"$name\"]=null;\n";
+					else
+						$str.="{$key}[\"$name\"]=\"$value\";\n";
+				}
+			}
+			$str.="\n//]]>\n</script>\n";
+			$writer->write($str);
+		}
+	}
+
+	public function renderHeadScriptFiles($writer)
+	{
+		$str='';
+		foreach($this->_headScriptFiles as $url)
+			$str.="<script type=\"text/javascript\" src=\"".THttpUtility::htmlEncode($url)."\"></script>\n";
+		$writer->write($str);
+	}
+
+	public function renderHeadScripts($writer)
+	{
+		if(count($this->_headScripts))
+			$writer->write("<script type=\"text/javascript\">\n//<![CDATA[\n".implode("\n",$this->_headScripts)."\n//]]>\n</script>\n");
+	}
+
+	public function renderStyleSheetFiles($writer)
+	{
+		$str='';
+		foreach($this->_styleSheetFiles as $url)
+		{
+			$str.="<link rel=\"stylesheet\" type=\"text/css\" href=\"".THttpUtility::htmlEncode($url)."\" />\n";
+		}
+		$writer->write($str);
+	}
+
+	public function renderStyleSheets($writer)
+	{
+		if(count($this->_styleSheets))
+			$writer->write("<style type=\"text/css\">\n".implode("\n",$this->_styleSheets)."\n</style>\n");
+	}
+
+	public function getHasHiddenFields()
+	{
+		return count($this->_hiddenFields)>0;
+	}
+
+	public function getHasSubmitStatements()
+	{
+		return count($this->_onSubmitStatements)>0;
+	}
+
+
+	/*
+	private void EnsureEventValidationFieldLoaded();
+	internal string GetEventValidationFieldValue();
+	public string GetWebResourceUrl(Type type, string resourceName);
+	public void RegisterClientScriptResource(Type type, string resourceName);
+	internal void RegisterDefaultButtonScript(Control button, $writer, bool useAddAttribute);
+	public function SaveEventValidationField();
+	public void ValidateEvent(string uniqueId, string argument);
+	public function getCallbackEventReference()
+	*/
+}
+
+/**
+ * TJavascript class file. Javascript utilties, converts basic PHP types into
+ * appropriate javascript types.
+ *
+ * Example:
+ * <code>
+ * $options['onLoading'] = "doit";
+ * $options['onComplete'] = "more";
+ * $js = TJavascript::toList($options);
+ * //expects the following javascript code
+ * // {'onLoading':'doit','onComplete':'more'}
+ * </code>
+ *
+ * Namespace: System.Web.UI
+ *
+ * @author Wei Zhuo<weizhuo[at]gmail[dot]com>
+ * @version $Revision: 1.3 $  $Date: 2005/11/10 23:43:26 $
+ * @package System.Web.UI
+ */
+class TJavascript
+{
+	/**
+	 * Coverts PHP arrays (only the array values) into javascript array.
+	 * @param array the array data to convert
+	 * @param string append additional javascript array data
+	 * @param boolean if true empty string and empty array will be converted
+	 * @return string javascript array as string.
+	 */
+	public static function toArray($array,$append=null,$strict=false)
+	{
+		$results = array();
+		$converter = new TJavascript();
+		foreach($array as $v)
+		{
+			if($strict || (!$strict && $v !== '' && $v !== array()))
+			{
+				$type = 'to_'.gettype($v);
+				if($type == 'to_array')
+					$results[] = $converter->toArray($v, $append, $strict);
+				else
+					$results[] = $converter->{$type}($v);
+			}
+		}
+		$extra = '';
+		if(strlen($append) > 0)
+			$extra .= count($results) > 0 ? ','.$append : $append;
+		return '['.implode(',', $results).$extra.']';
+	}
+
+	/**
+	 * Coverts PHP arrays (both key and value) into javascript objects.
+	 * @param array the array data to convert
+	 * @param string append additional javascript object data
+	 * @param boolean if true empty string and empty array will be converted
+	 * @return string javascript object as string.
+	 */
+	public static function toList($array,$append=null, $strict=false)
+	{
+		$results = array();
+		$converter = new TJavascript();
+		foreach($array as $k => $v)
+		{
+			if($strict || (!$strict && $v !== '' && $v !== array()))
+			{
+				$type = 'to_'.gettype($v);
+				if($type == 'to_array')
+					$results[] = "'{$k}':".$converter->toList($v, $append, $strict);
+				else
+					$results[] = "'{$k}':".$converter->{$type}($v);
+			}
+		}
+		$extra = '';
+		if(strlen($append) > 0)
+			$extra .= count($results) > 0 ? ','.$append : $append;
+
+		return '{'.implode(',', $results).$extra.'}';
+	}
+
+	public function to_boolean($v)
+	{
+		return $v ? 'true' : 'false';
+	}
+
+	public function to_integer($v)
+	{
+		return "{$v}";
+	}
+
+	public function to_double($v)
+	{
+		return "{$v}";
+	}
+
+	/**
+	 * If string begins with [ and ends ], or begins with { and ends }
+	 * it is assumed to be javascript arrays or objects and no further
+	 * conversion is applied.
+	 */
+	public function to_string($v)
+	{
+		if(strlen($v)>1)
+		{
+			$first = $v{0}; $last = $v{strlen($v)-1};
+			if($first == '[' && $last == ']' ||
+				($first == '{' && $last == '}'))
+				return $v;
+		}
+		return "'".addslashes($v)."'";
+	}
+
+	public function to_array($v)
+	{
+		return TJavascript::toArray($v);
+	}
+
+	public function to_null($v)
+	{
+		return 'null';
+	}
+}
+
+/**
+ * PradoClientScript class.
+ *
+ * Resolves Prado client script dependencies. e.g. TPradoClientScript::getScripts("dom");
+ *
+ * - <b>base</b> basic javascript utilities, e.g. $()
+ * - <b>dom</b> DOM and Form functions, e.g. $F(inputID) to retrive form input values.
+ * - <b>effects</b> Effects such as fade, shake, move
+ * - <b>controls</b> Prado client-side components, e.g. Slider, AJAX components
+ * - <b>validator</b> Prado client-side validators.
+ * - <b>ajax</b> Prado AJAX library including Prototype's AJAX and JSON.
+ *
+ * Dependencies for each library are automatically resolved.
+ *
+ * Namespace: System.Web.UI
+ *
+ * @author Wei Zhuo<weizhuo[at]gmail[dot]com>
+ * @version $Revision: 1.1 $  $Date: 2005/11/06 23:02:33 $
+ * @package System.Web.UI
+ */
+class TPradoClientScript
+{
+	/**
+	 * Client-side javascript library dependencies
+	 * @var array
+	 */
+	protected static $dependencies = array(
+		'base' => array('base'),
+		'dom' => array('base', 'dom'),
+		'effects' => array('base', 'dom', 'effects'),
+		'controls' => array('base', 'dom', 'effects', 'controls'),
+		'validator' => array('base', 'dom', 'validator'),
+		'logger' => array('base', 'dom', 'logger'),
+		'ajax' => array('base', 'dom', 'ajax')
+		);
+
+	/**
+	 * Resolve dependencies for the given library.
+	 * @param array list of libraries to load.
+	 * @return array list of libraries including its dependencies.
+	 */
+	protected static function getScripts($scripts)
+	{
+		$files = array();
+		if(!is_array($scripts)) $scripts = array($scripts);
+		foreach($scripts as $script)
+		{
+			if(isset(self::$dependencies[$script]))
+				$files = array_merge($files, self::$dependencies[$script]);
+			$files[] = $script;
+		}
+		$files = array_unique($files);
+		return $files;
+	}
+}
+
 ?>
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