15 files changed, 636 insertions, 338 deletions

diff --git a/framework/Exceptions/TErrorHandler.php b/framework/Exceptions/TErrorHandler.php
index 8af92ecc..e9f48a2b 100644
--- a/framework/Exceptions/TErrorHandler.php
+++ b/framework/Exceptions/TErrorHandler.php
@@ -67,7 +67,7 @@ class TErrorHandler extends TComponent implements IModule
 	/**

 	 * @var string module ID

 	 */

-	private $_id;

+	private $_id='error';

 	/**

 	 * @var TApplication application instance

 	 */

@@ -86,7 +86,6 @@ class TErrorHandler extends TComponent implements IModule
 	public function init($application,$config)

 	{

 		$this->_application=$application;

-		$application->attachEventHandler('Error',array($this,'handleError'));

 		$application->setErrorHandler($this);

 	}

 

diff --git a/framework/Exceptions/messages.txt b/framework/Exceptions/messages.txt
index 4c6a4c87..8a20b0c0 100644
--- a/framework/Exceptions/messages.txt
+++ b/framework/Exceptions/messages.txt
@@ -34,9 +34,9 @@ appconfig_alias_invalid					= Application configuration <alias> element must hav
 appconfig_alias_redefined				= Application configuration <alias id="%s"> cannot be redefined.

 appconfig_using_invalid					= Application configuration <using> element must have a "namespace" attribute.

 appconfig_moduleid_required				= Application configuration <module> element must have an "id" attribute.

-appconfig_moduletype_required			= Application configuration <module id="%s"> must have a "type" attribute.

+appconfig_moduletype_required			= Application configuration <module id="%s"> must have a "class" attribute.

 appconfig_serviceid_required			= Application configuration <service> element must have an "id" attribute.

-appconfig_servicetype_required			= Application configuration <service id="%s"> must have a "type" attribute.

+appconfig_servicetype_required			= Application configuration <service id="%s"> must have a "class" attribute.

 appconfig_parameterid_required			= Application configuration <parameter> element must have an "id" attribute.

 

 uri_format_invalid						= '%s' is not a valid URI.

@@ -86,9 +86,9 @@ pageserviceconf_aliaspath_invalid		= <alias id="%s"> uses an invalid file path "
 pageserviceconf_alias_invalid			= <alias> element must have an "id" attribute and a "path" attribute in page directory configuration file '%s'.

 pageserviceconf_using_invalid			= <using> element must have a "namespace" attribute in page directory configuration file '%s'.

 pageserviceconf_module_invalid			= <module> element must have an "id" attribute in page directory configuration file '%s'.

-pageserviceconf_moduletype_required		= <module id="%s"> must have a "type" attribute in page directory configuration file '%s'.

+pageserviceconf_moduletype_required		= <module id="%s"> must have a "class" attribute in page directory configuration file '%s'.

 pageserviceconf_parameter_invalid		= <parameter> element must have an "id" attribute in page directory configuration file '%s'.

-pageserviceconf_page_invalid			= <page> element must have an "id" attribute and a "type" attribute in page directory configuration file '%s'.

+pageserviceconf_page_invalid			= <page> element must have an "id" attribute and a "class" attribute in page directory configuration file '%s'.

 

 template_templatefile_invalid			= Template file '%s' cannot open.

 template_closingtag_unexpected			= %s: Unexpected closing tag '%s' is found.

diff --git a/framework/TApplication.php b/framework/TApplication.php
index bd8e8e39..3f9457ea 100644
--- a/framework/TApplication.php
+++ b/framework/TApplication.php
@@ -808,7 +808,7 @@ class TApplicationConfiguration extends TComponent
 				$properties=$node->getAttributes();

 				if(($id=$properties->itemAt('id'))===null)

 					throw new TConfigurationException('appconfig_moduleid_required');

-				if(($type=$properties->remove('type'))===null && isset($this->_modules[$id]) && $this->_modules[$id][2]===null)

+				if(($type=$properties->remove('class'))===null && isset($this->_modules[$id]) && $this->_modules[$id][2]===null)

 					$type=$this->_modules[$id][0];

 				if($type===null)

 					throw new TConfigurationException('appconfig_moduletype_required',$id);

@@ -825,7 +825,7 @@ class TApplicationConfiguration extends TComponent
 				$properties=$node->getAttributes();

 				if(($id=$properties->itemAt('id'))===null)

 					throw new TConfigurationException('appconfig_serviceid_required');

-				if(($type=$properties->remove('type'))===null && isset($this->_services[$id]) && $this->_services[$id][2]===null)

+				if(($type=$properties->remove('class'))===null && isset($this->_services[$id]) && $this->_services[$id][2]===null)

 					$type=$this->_services[$id][0];

 				if($type===null)

 					throw new TConfigurationException('appconfig_servicetype_required',$id);

@@ -842,7 +842,7 @@ class TApplicationConfiguration extends TComponent
 				$properties=$node->getAttributes();

 				if(($id=$properties->remove('id'))===null)

 					throw new TConfigurationException('appconfig_parameterid_required');

-				if(($type=$properties->remove('type'))===null)

+				if(($type=$properties->remove('class'))===null)

 					$this->_parameters[$id]=$node->getValue();

 				else

 					$this->_parameters[$id]=array($type,$properties->toArray());

diff --git a/framework/Web/Services/TPageService.php b/framework/Web/Services/TPageService.php
index 6ef07d03..078f8706 100644
--- a/framework/Web/Services/TPageService.php
+++ b/framework/Web/Services/TPageService.php
@@ -17,6 +17,7 @@ Prado::using('System.Web.UI.TPage');
 Prado::using('System.Web.TTemplateManager');

 Prado::using('System.Web.TThemeManager');

 Prado::using('System.Web.TAssetManager');

+Prado::using('System.Web.THiddenFieldPageStatePersister');

 

 /**

  * TPageService class.

@@ -102,6 +103,10 @@ class TPageService extends TComponent implements IService
 	 */

 	private $_pageType;

 	/**

+	 * @var TPage the requested page

+	 */

+	private $_page=null;

+	/**

 	 * @var array list of initial page property values

 	 */

 	private $_properties;

@@ -125,6 +130,10 @@ class TPageService extends TComponent implements IService
 	 * @var TTemplateManager template manager

 	 */

 	private $_templateManager=null;

+	/**

+	 * @var IPageStatePersister page state persister

+	 */

+	private $_pageStatePersister=null;

 

 	/**

 	 * Initializes the service.

@@ -312,6 +321,27 @@ class TPageService extends TComponent implements IService
 	}

 

 	/**

+	 * @return IPageStatePersister page state persister

+	 */

+	public function getPageStatePersister()

+	{

+		if(!$this->_pageStatePersister)

+		{

+			$this->_pageStatePersister=new THiddenFieldPageStatePersister;

+			$this->_pageStatePersister->init($this->_application,null);

+		}

+		return $this->_pageStatePersister;

+	}

+

+	/**

+	 * @param IPageStatePersister page state persister

+	 */

+	public function setPageStatePersister(IPageStatePersister $value)

+	{

+		$this->_pageStatePersister=$value;

+	}

+

+	/**

 	 * @return string the requested page path

 	 */

 	public function getRequestedPagePath()

@@ -320,6 +350,14 @@ class TPageService extends TComponent implements IService
 	}

 

 	/**

+	 * @return TPage the requested page

+	 */

+	public function getRequestedPage()

+	{

+		return $this->_page;

+	}

+

+	/**

 	 * @return string default page path to be served if no explicit page is request

 	 */

 	public function getDefaultPage()

@@ -391,11 +429,11 @@ class TPageService extends TComponent implements IService
 			}

 		}

 		if(class_exists($className,false))

-			$page=new $className($this->_properties);

+			$this->_page=new $className($this->_properties);

 		else

 			throw new THttpException(404,'pageservice_page_unknown',$this->_pageType);

 		$writer=$this->_application->getResponse()->createHtmlWriter();

-		$page->run($writer);

+		$this->_page->run($writer);

 		$writer->flush();

 	}

 

@@ -624,7 +662,7 @@ class TPageConfiguration extends TComponent
 			foreach($modulesNode->getElementsByTagName('module') as $node)

 			{

 				$properties=$node->getAttributes();

-				$type=$properties->remove('type');

+				$type=$properties->remove('class');

 				if(($id=$properties->itemAt('id'))===null)

 					throw new TConfigurationException('pageserviceconf_module_invalid',$configPath);

 				if(isset($this->_modules[$id]))

@@ -660,7 +698,7 @@ class TPageConfiguration extends TComponent
 				$properties=$node->getAttributes();

 				if(($id=$properties->remove('id'))===null)

 					throw new TConfigurationException('pageserviceconf_parameter_invalid',$configPath);

-				if(($type=$properties->remove('type'))===null)

+				if(($type=$properties->remove('class'))===null)

 					$this->_parameters[$id]=$node->getValue();

 				else

 					$this->_parameters[$id]=array($type,$properties->toArray());

@@ -704,7 +742,7 @@ class TPageConfiguration extends TComponent
 				foreach($pagesNode->getElementsByTagName('page') as $node)

 				{

 					$properties=$node->getAttributes();

-					$type=$properties->remove('type');

+					$type=$properties->remove('class');

 					$id=$properties->itemAt('id');

 					if($id===null || $type===null)

 						throw new TConfigurationException('pageserviceconf_page_invalid',$configPath);

diff --git a/framework/Web/TAssetManager.php b/framework/Web/TAssetManager.php
index 3e7df967..e2b9f9a8 100644
--- a/framework/Web/TAssetManager.php
+++ b/framework/Web/TAssetManager.php
@@ -58,7 +58,7 @@ class TAssetManager extends TComponent implements IModule
 	/**

 	 * @var string module ID

 	 */

-	private $_id;

+	private $_id='asset';

 	/**

 	 * @var boolean whether to use timestamp checking to ensure files are published with up-to-date versions.

 	 */

diff --git a/framework/Web/THiddenFieldPageStatePersister.php b/framework/Web/THiddenFieldPageStatePersister.php
new file mode 100644
index 00000000..3d305668
--- /dev/null
+++ b/framework/Web/THiddenFieldPageStatePersister.php
@@ -0,0 +1,80 @@
+<?php

+

+class THiddenFieldPageStatePersister extends TComponent implements IPageStatePersister, IModule

+{

+	private $_application;

+	private $_id='persister';

+

+	/**

+	 * Initializes the service.

+	 * This method is required by IModule interface.

+	 * @param TApplication application

+	 * @param TXmlElement module configuration

+	 */

+	public function init($application,$config)

+	{

+		$this->_application=$application;

+	}

+

+	/**

+	 * @return string id of this module

+	 */

+	public function getID()

+	{

+		return $this->_id;

+	}

+

+	/**

+	 * @param string id of this module

+	 */

+	public function setID($value)

+	{

+		$this->_id=$value;

+	}

+

+	public function save($state)

+	{

+		$data=Prado::serialize($state);

+		$hmac=$this->computeHMAC($data,$this->getKey());

+		if(function_exists('gzuncompress') && function_exists('gzcompress'))

+			$data=gzcompress($hmac.$data);

+		else

+			$data=$hmac.$data;

+		$this->_application->getService()->getRequestedPage()->saveStateField($data);

+	}

+

+	public function load()

+	{

+		$str=$this->_application->getService()->getRequestedPage()->loadStateField();

+		if($str==='')

+			return null;

+		if(function_exists('gzuncompress') && function_exists('gzcompress'))

+			$data=gzuncompress($str);

+		else

+			$data=$str;

+		if($data!==false && strlen($data)>32)

+		{

+			$hmac=substr($data,0,32);

+			$state=substr($data,32);

+			if($hmac===$this->computeHMAC($state,$this->getKey()))

+				return Prado::unserialize($state);

+		}

+		throw new Exception('viewstate data is corrupted.');

+	}

+

+	private function getKey()

+	{

+		return 'abcdefe';

+	}

+

+	private function computeHMAC($data,$key)

+	{

+		if (strlen($key) > 64)

+			$key = pack('H32', md5($key));

+		else if (strlen($key) < 64)

+			$key = str_pad($key, 64, "\0");

+		return md5((str_repeat("\x5c", 64) ^ substr($key, 0, 64)) . pack('H32', md5((str_repeat("\x36", 64) ^ substr($key, 0, 64)) . $data)));

+	}

+}

+

+?>
\ No newline at end of file
diff --git a/framework/Web/TThemeManager.php b/framework/Web/TThemeManager.php
index 0a54cf8e..504e8ecb 100644
--- a/framework/Web/TThemeManager.php
+++ b/framework/Web/TThemeManager.php
@@ -45,7 +45,7 @@ class TThemeManager extends TComponent implements IModule
 	/**

 	 * @var string module ID

 	 */

-	private $_id;

+	private $_id='theme';

 	/**

 	 * @var boolean whether this module has been initialized

 	 */

@@ -212,6 +212,10 @@ class TTheme extends TComponent
 	 * @var array list of skins for the theme

 	 */

 	private $_skins=null;

+	/**

+	 * @var string theme name

+	 */

+	private $_name='';

 

 	/**

 	 * Constructor.

@@ -223,6 +227,7 @@ class TTheme extends TComponent
 	public function __construct($application,$themePath,$themeUrl)

 	{

 		$this->_themeUrl=$themeUrl;

+		$this->_name=basename($themePath);

 		if(($cache=$application->getCache())!==null)

 		{

 			$array=$cache->get(self::THEME_CACHE_PREFIX.$themePath);

@@ -284,6 +289,14 @@ class TTheme extends TComponent
 	}

 

 	/**

+	 * @return string theme name

+	 */

+	public function getName()

+	{

+		return $this->_name;

+	}

+

+	/**

 	 * Applies the theme to a particular control.

 	 * The control's class name and SkinID value will be used to

 	 * identify which skin to be applied. If the control's SkinID is empty,

diff --git a/framework/Web/UI/TClientScriptManager.php b/framework/Web/UI/TClientScriptManager.php
index 7bbbbdfa..d4aea650 100644
--- a/framework/Web/UI/TClientScriptManager.php
+++ b/framework/Web/UI/TClientScriptManager.php
@@ -33,7 +33,13 @@ class TPostBackOptions extends TComponent
 

 class TClientScriptManager extends TComponent

 {

-	const POSTBACK_FUNC='__doPostBack';

+	const SCRIPT_DIR='Web/Javascripts/js';

+	const POSTBACK_FUNC='Prado.PostBack.perform';

+	const POSTBACK_OPTIONS='Prado.PostBack.Options';

+	const FIELD_POSTBACK_TARGET='PRADO_POSTBACK_TARGET';

+	const FIELD_POSTBACK_PARAMETER='PRADO_POSTBACK_PARAMETER';

+	const FIELD_LASTFOCUS='PRADO_LASTFOCUS';

+	const FIELD_PAGE_STATE='PRADO_PAGE_STATE';

 	private $_owner;

 	private $_hiddenFields=array();

 	private $_scriptBlocks=array();

@@ -48,78 +54,89 @@ class TClientScriptManager extends TComponent
 		$this->_owner=$owner;

 	}

 

-	public function getPostBackEventReference($options,$javascriptPrefix=true)

+	public function getPostBackEventReference($control,$parameter='',$options=null,$javascriptPrefix=true)

 	{

-		$str=$javascriptPrefix?'javascript:':'';

-		if($options->AutoPostBack)

-			$str.="setTimeout('";

-		if(!$options->PerformValidation && !$options->TrackFocus && $options->ClientSubmit && $options->ActionUrl==='')

+		if($options)

 		{

-			$this->registerPostBackScript();

-			$postback=self::POSTBACK_FUNC.'(\''.$options->TargetControl->getUniqueID().'\',\''.THttpUtility::quoteJavaScriptString($options->Argument).'\')';

-			if($options->AutoPostBack)

+			$flag=false;

+			$opt='new '.self::POSTBACK_OPTIONS.'(';

+			if($options->PerformValidation)

 			{

-				$str.=THttpUtility::quoteJavaScriptString($postback);

-				$str.="',0)";

+				$flag=true;

+				$this->registerValidationScript();

+				$opt.='true,';

 			}

 			else

-				$str.=$postback;

-			return $str;

-		}

-		$str.='WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions("';

-		$str.=$options->TargetControl->getUniqueID().'", ';

-		if(($arg=$options->Argument)==='')

-			$str.='"", ';

-		else

-			$str.='"'.THttpUtility::quoteJavaScriptString($arg).'", ';

-		$flag=false;

-		if($options->PerformValidation)

-		{

-			$flag=true;

-			$str.='true, ';

-		}

-		else

-			$str.='false, ';

-		if($options->ValidationGroup!=='')

-		{

-			$flag=true;

-			$str.='"'.$options->ValidationGroup.'", ';

-		}

-		else

-			$str.='"", ';

-		if($options->ActionUrl!=='')

-		{

-			$flag=true;

-			$this->_owner->setContainsCrossPagePost(true);

-			$str.='"'.THttpUtility::quoteJavaScriptString($options->ActionUrl).'", ';

-		}

-		else

-			$str.='"", ';

-		if($options->TrackFocus)

-		{

-			$this->_owner->registerFocusScript();

-			$flag=true;

-			$str.='true, ';

-		}

-		else

-			$str.='false, ';

-		if($options->ClientSubmit)

-		{

-			$flag=true;

-			$this->_owner->registerPostBackScript();

-			$str.='true))';

-		}

-		else

-			$str.='false))';

-		if($options->AutoPostBack)

-			$str.="', 0)";

-		if($flag)

-		{

-			$this->_owner->registerWebFormsScript();

-			return $str;

+				$opt.='false,';

+			if($options->ValidationGroup!=='')

+			{

+				$flag=true;

+				$opt.='"'.$options->ValidationGroup.'",';

+			}

+			else

+				$opt.='"",';

+			if($options->ActionUrl!=='')

+			{

+				$flag=true;

+				$this->_owner->setCrossPagePostBack(true);

+				$opt.='"'.THttpUtility::quoteJavaScriptString($options->ActionUrl).'",';

+			}

+			else

+				$opt.='"",';

+			if($options->TrackFocus)

+			{

+				$flag=true;

+				$this->registerFocusScript();

+				$opt.='true,';

+			}

+			else

+				$opt.='false,';

+			if($options->ClientSubmit)

+			{

+				$flag=true;

+				$opt.='true)';

+			}

+			else

+				$opt.='false)';

+			//if(!$flag)

+			//	return '';

 		}

 		else

-			return '';

+			$opt='null';

+		$this->registerPostBackScript();

+		$formID=$this->_owner->getForm()->getUniqueID();

+		$postback=self::POSTBACK_FUNC.'(\''.$formID.'\',\''.$control->getUniqueID().'\',\''.THttpUtility::quoteJavaScriptString($parameter).'\','.$opt.')';

+		if($options && $options->AutoPostBack)

+			$postback='setTimeout(\''.THttpUtility::quoteJavaScriptString($postback).'\',0)';

+		return $javascriptPrefix?'javascript:'.$postback:$postback;

+	}

+

+	protected function registerPostBackScript()

+	{

+		$this->registerHiddenField(self::FIELD_POSTBACK_TARGET,'');

+		$this->registerHiddenField(self::FIELD_POSTBACK_PARAMETER,'');

+		$am=$this->_owner->getService()->getAssetManager();

+		$url=$am->publishFilePath(Prado::getFrameworkPath().'/'.self::SCRIPT_DIR.'/base.js');

+		$this->registerScriptInclude('prado:base',$url);

+	}

+

+	public function registerFocusScript()

+	{

+		// need Focus.js

+	}

+

+	public function registerScrollScript()

+	{

+		$this->registerHiddenField(self::FIELD_SCROLL_X,$this->_owner->getScrollPositionX());

+		$this->registerHiddenField(self::FIELD_SCROLL_Y,$this->_owner->getScrollPositionY());

+		/*

+		this.ClientScript.RegisterStartupScript(typeof(Page), "PageScrollPositionScript", "\r\ntheForm.oldSubmit = theForm.submit;\r\ntheForm.submit = WebForm_SaveScrollPositionSubmit;\r\n\r\ntheForm.oldOnSubmit = theForm.onsubmit;\r\ntheForm.onsubmit = WebForm_SaveScrollPositionOnSubmit;\r\n" + (this.IsPostBack ? "\r\ntheForm.oldOnLoad = window.onload;\r\nwindow.onload = WebForm_RestoreScrollPosition;\r\n" : string.Empty), true);

+		need base.js

+		*/

+	}

+

+	public function registerValidationScript()

+	{

 	}

 

 	public function isHiddenFieldRegistered($key)

@@ -226,11 +243,14 @@ class TClientScriptManager extends TComponent
 

 	public function renderStartupScripts($writer)

 	{

+		$str='';

+		foreach($this->_scriptIncludes as $include)

+			$str.="\n<script type=\"text/javascript\" src=\"".THttpUtility::htmlEncode($include)."\"></script>";

 		if(count($this->_startupScripts))

 		{

-			$str="\n<script type=\"text/javascript\">\n<!--\n";

+			$str.="\n<script type=\"text/javascript\">\n<!--\n";

 			foreach($this->_startupScripts as $script)

-				$str.="\n".$script;

+				$str.=$script;

 			$str.="// -->\n</script>\n";

 			$writer->write($str);

 		}

@@ -292,24 +312,6 @@ class TClientScriptManager extends TComponent
 	public void ValidateEvent(string uniqueId, string argument);

 	public function getCallbackEventReference()

 	*/

-

-	public function registerPostBackScript()

-	{

-		$this->registerHiddenField('__EVENTTARGET','');

-		$this->registerHiddenField('__EVENTPARAM','');

-		$id=$this->_owner->getForm()->getUniqueID();

-		$script=<<<EOD

-function __doPostBack(eventTarget, eventParameter) {

-	var validation = typeof(Prado) != 'undefined' && typeof(Prado.Validation) != 'undefined';

-	var theform = document.getElementById ? document.getElementById('$id') : document.forms['$id'];

-	theform.__EVENTTARGET.value = eventTarget.split('\$').join(':');

-	theform.__EVENTPARAMETER.value = eventParameter;

-	if(!validation || Prado.Validation.OnSubmit(theform))

-	   theform.submit();

-}

-EOD;

-		$this->registerStartupScript('form',$script);

-	}

 }

 

 ?>
\ No newline at end of file
diff --git a/framework/Web/UI/TControl.php b/framework/Web/UI/TControl.php
index a3c031f4..0e601386 100644
--- a/framework/Web/UI/TControl.php
+++ b/framework/Web/UI/TControl.php
@@ -983,7 +983,7 @@ class TControl extends TComponent
 		if($this->_stage<self::CS_INITIALIZED)

 		{

 			$this->_stage=self::CS_CHILD_INITIALIZED;

-			if(($page=$this->getPage()) && $page->getContainsTheme() && $this->getEnableTheming() && !($this->_flags & self::IS_SKIN_APPLIED))

+			if(($page=$this->getPage()) && $this->getEnableTheming() && !($this->_flags & self::IS_SKIN_APPLIED))

 			{

 				$page->applyControlSkin($this);

 				$this->_flags |= self::IS_SKIN_APPLIED;

diff --git a/framework/Web/UI/THiddenFieldPageStatePersister.php b/framework/Web/UI/THiddenFieldPageStatePersister.php
index 24ef5491..3d305668 100644
--- a/framework/Web/UI/THiddenFieldPageStatePersister.php
+++ b/framework/Web/UI/THiddenFieldPageStatePersister.php
@@ -1,14 +1,35 @@
 <?php

 

-require_once(PRADO_DIR.'/Web/UI/TPageStatePersister.php');

-

-class THiddenFieldPageStatePersister extends TPageStatePersister

+class THiddenFieldPageStatePersister extends TComponent implements IPageStatePersister, IModule

 {

-	private $_page;

+	private $_application;

+	private $_id='persister';

+

+	/**

+	 * Initializes the service.

+	 * This method is required by IModule interface.

+	 * @param TApplication application

+	 * @param TXmlElement module configuration

+	 */

+	public function init($application,$config)

+	{

+		$this->_application=$application;

+	}

+

+	/**

+	 * @return string id of this module

+	 */

+	public function getID()

+	{

+		return $this->_id;

+	}

 

-	public function __construct($page)

+	/**

+	 * @param string id of this module

+	 */

+	public function setID($value)

 	{

-		$this->_page=$page;

+		$this->_id=$value;

 	}

 

 	public function save($state)

@@ -19,12 +40,12 @@ class THiddenFieldPageStatePersister extends TPageStatePersister
 			$data=gzcompress($hmac.$data);

 		else

 			$data=$hmac.$data;

-		$this->_page->saveStateField($data);

+		$this->_application->getService()->getRequestedPage()->saveStateField($data);

 	}

 

 	public function load()

 	{

-		$str=$this->_page->loadStateField();

+		$str=$this->_application->getService()->getRequestedPage()->loadStateField();

 		if($str==='')

 			return null;

 		if(function_exists('gzuncompress') && function_exists('gzcompress'))

diff --git a/framework/Web/UI/TPage.php b/framework/Web/UI/TPage.php
index 902a0212..9eb50cde 100644
--- a/framework/Web/UI/TPage.php
+++ b/framework/Web/UI/TPage.php
@@ -5,19 +5,44 @@ Prado::using('System.Web.UI.WebControls.*');
 

 class TPage extends TTemplateControl

 {

+	/**

+	 * @var TApplication application instance

+	 */

 	private $_application;

-	private $_contentTemplateCollection=null;

+	/**

+	 * @var TPageService page service instance

+	 */

+	private $_pageService;

+	/**

+	 * @var string template file name

+	 */

+	private $_templateFile=null;

+	/**

+	 * @var array list of registered validators

+	 */

+	private $_validators=array();

+	/**

+	 * @var boolean if validation has been performed

+	 */

+	private $_validated=false;

+	/**

+	 * @var TTheme page theme

+	 */

+	private $_theme=null;

+	/**

+	 * @var TTheme page stylesheet theme

+	 */

+	private $_styleSheet=null;

+	/**

+	 * @var TClientScriptManager client script manager

+	 */

+	private $_clientScript=null;

+

 	private $_maxPageStateFieldLength=10;

 	private $_enableViewStateMac=true;

 	private $_performPreRendering=true;

 	private $_performRendering=true;

-	private $_supportsStyleSheet=true;

-	private $_theme=null;

-	private $_themeName='';

-	private $_styleSheet=null;

-	private $_styleSheetName='';

 

-	private $_clientScript=null;

 	private $_form=null;

 	private $_formRendered=false;

 	private $_inFormRender=false;

@@ -34,18 +59,20 @@ class TPage extends TTemplateControl
 	private $_controlsRequiringPostBack=array();

 	private $_registeredControlThatRequireRaiseEvent=null;

 	private $_registeredControlsThatRequirePostBack=null;

-	private $_validators=array();

-	private $_validated=false;

 	private $_autoPostBackControl=null;

 	private $_webFormsScriptRendered=false;

 	private $_requireWebFormsScript=false;

 	private static $_systemPostFields=array('__EVENTTARGET','__EVENTPARAM','__STATE','__PREVPAGE','__CALLBACKID','__CALLBACKPARAM','__LASTFOCUS');

-	private $_contents=array();

-	private $_templateFile=null;

 

+	/**

+	 * Constructor.

+	 * If initial property values are given, they will be set to the page.

+	 * @param array initial property values for the page.

+	 */

 	public function __construct($initProperties=null)

 	{

 		$this->_application=Prado::getApplication();

+		$this->_pageService=$this->_application->getService();

 		$this->setPage($this);

 		if(is_array($initProperties))

 		{

@@ -56,7 +83,9 @@ class TPage extends TTemplateControl
 	}

 

 	/**

-	 * Loads and parses the control template

+	 * Loads and parses the page template.

+	 * This method overrides the parent implementation by allowing loading

+	 * a page template from a specified template file.

 	 * @return ITemplate the parsed template structure

 	 */

 	protected function loadTemplate()

@@ -65,125 +94,376 @@ class TPage extends TTemplateControl
 			return parent::loadTemplate();

 		else

 		{

-			$template=Prado::getApplication()->getService()->getTemplateManager()->getTemplateByFileName(Prado::getPathOfNamespace($this->_templateFile,'.tpl'));

+			$template=$this->_pageService->getTemplateManager()->getTemplateByFileName($this->_templateFile);

 			$this->setTemplate($template);

 			return $template;

 		}

 	}

 

+	/**

+	 * @return string the user-specified template file, defaults to null.

+	 */

 	public function getTemplateFile()

 	{

 		return $this->_templateFile;

 	}

 

+	/**

+	 * Sets the user-specified template file.

+	 * The template file must be specified in a namespace format.

+	 * @param string the user-specified template file.

+	 * @throws TInvalidDataValueException if the file is not in namespace format.

+	 */

 	public function setTemplateFile($value)

 	{

-		$this->_templateFile=$value;

+		if(($templateFile=Prado::getPathOfNamespace($value,TTemplateManager::TEMPLATE_FILE_EXT))===null)

+			throw new TInvalidDataValueException('page_templatefile_invalid',$value);

+		else

+			$this->_templateFile=$templateFile;

 	}

 

-	final public function setForm($form)

+	/**

+	 * Registers a TForm instance to the page.

+	 * Note, a page can contain at most one TForm instance.

+	 * @param TForm the form on the page

+	 * @throws TInvalidOperationException if this method is invoked twice or more.

+	 */

+	public function setForm(TForm $form)

 	{

-		$this->_form=$form;

+		if($this->_form===null)

+			$this->_form=$form;

+		else

+			throw new TInvalidOperationException('page_form_duplicated');

 	}

 

-	final public function getForm()

+	/**

+	 * @return TForm the form on the page

+	 */

+	public function getForm()

 	{

 		return $this->_form;

 	}

 

-	public function validate($validationGroup='')

+	/**

+	 * Returns a list of registered validators.

+	 * If validation group is specified, only the validators in that group will be returned.

+	 * @param string validation group

+	 * @return TList registered validators

+	 */

+	public function getValidators($validationGroup='')

 	{

-		$this->_validated=true;

+		if(!$this->_validators)

+			$this->_validators=new TList;

 		if($validationGroup==='')

-		{

-			foreach($this->_validators as $validator)

-				$validator->validate();

-		}

+			return $this->_validators;

 		else

 		{

+			$list=new TList;

 			foreach($this->_validators as $validator)

 				if($validator->getValidationGroup()===$validationGroup)

-					$validator->validate();

+					$list->add($validator);

+			return $list;

 		}

 	}

 

-	public function RegisterEnabledControl($control)

+	/**

+	 * Performs input validation.

+	 * This method will invoke the registered validators to perform the actual validation.

+	 * If validation group is specified, only the validators in that group will be invoked.

+	 * @param string validation group

+	 */

+	public function validate($validationGroup='')

 	{

-		$this->getEna.EnabledControls.Add(control);

+		$this->_validated=true;

+		if($this->_validators && $this->_validators->getCount())

+		{

+			if($validationGroup==='')

+			{

+				foreach($this->_validators as $validator)

+					$validator->validate();

+			}

+			else

+			{

+				foreach($this->_validators as $validator)

+					if($validator->getValidationGroup()===$validationGroup)

+						$validator->validate();

+			}

+		}

 	}

 

-

-

 	/**

-	 * @internal

+	 * Returns whether user input is valid or not.

+	 * This method must be invoked after {@link validate} is called.

+	 * @return boolean whether the user input is valid or not.

+	 * @throws TInvalidOperationException if {@link validate} is not invoked yet.

 	 */

-	public function registerPostBackScript()

+	public function getIsValid()

 	{

-		if($this->getClientSupportsJavaScript() && !$this->_postBackScriptRendered)

+		if($this->_validated)

 		{

-			if(!$this->_requirePostBackScript)

+			if($this->_validators && $this->_validators->getCount())

 			{

-				$this->getClientScript()->registerHiddenField('__EVENTTARGET','');

-				$this->getClientScript()->registerHiddenField('__EVENTPARAM','');

-				$this->_requirePostBackScript=true;

+				foreach($this->_validators as $validator)

+					if(!$validator->getIsValid())

+						return false;

 			}

+			return true;

 		}

+		else

+			throw new TInvalidOperationException('page_isvalid_unknown');

 	}

 

-	public function registerWebFormsScript()

+	/**

+	 * @return TTheme the theme used for the page. Defaults to null.

+	 */

+	public function getTheme()

 	{

-		if($this->getClientSupportsJavaScript() && !$this->_webFormsScriptRendered)

-		{

-			$this->registerPostBackScript();

-			$this->_requireWebFormsScript=true;

-		}

+		if(is_string($this->_theme))

+			$this->_theme=$this->_pageService->getThemeManager()->getTheme($this->_theme);

+		return $this->_theme;

 	}

 

+	/**

+	 * Sets the theme to be used for the page.

+	 * @param string|TTheme the theme name or the theme object to be used for the page.

+	 * @throws TInvalidDataTypeException if the parameter is neither a string nor a TTheme object

+	 */

+	public function setTheme($value)

+	{

+		$this->_theme=$value;

+	}

 

-	public function ensureRenderInForm($control)

+

+	/**

+	 * @return TTheme the stylesheet theme used for the page. Defaults to null.

+	 */

+	public function getStyleSheetTheme()

 	{

-		if(!$this->_inFormRender)

-			throw new THttpException('control_not_in_form',$control->getUniqueID());

+		if(is_string($this->_styleSheet))

+			$this->_styleSheet=$this->_pageService->getThemeManager()->getTheme($this->_styleSheet);

+		return $this->_styleSheet;

 	}

 

 	/**

-	 * @internal

+	 * Sets the stylesheet theme to be used for the page.

+	 * @param string|TTheme the stylesheet theme name or the stylesheet theme object to be used for the page.

+	 * @throws TInvalidDataTypeException if the parameter is neither a string nor a TTheme object

 	 */

-	final protected function addContentTemplate($name,$template)

+	public function setStyleSheetTheme($value)

 	{

-		if(!$this->_contentTemplateCollection)

-			$this->_contentTemplateCollection=new TMap;

-		if($this->_contentTemplateCollection->has($name))

-			throw new Exception("Content '$name' duplicated.");

-		$this->_contentTemplateCollection->add($name,$template);

+		$this->_styleSheet=$value;

 	}

 

 	/**

-	 * @internal

+	 * Applies a skin in the current theme to a control.

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

+	 * @param TControl a control to be applied skin with

+	 */

+	public function applyControlSkin($control)

+	{

+		if(($theme=$this->getTheme())!==null)

+			$theme->applySkin($control);

+	}

+

+	/**

+	 * Applies a stylesheet skin in the current theme to a control.

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

+	 * @param TControl a control to be applied stylesheet skin with

+	 */

+	public function applyControlStyleSheet($control)

+	{

+		if(($theme=$this->getStyleSheetTheme())!==null)

+			$theme->applySkin($control);

+	}

+

+	/**

+	 * @return TClientScriptManager client script manager

+	 */

+	public function getClientScript()

+	{

+		if(!$this->_clientScript)

+			$this->_clientScript=new TClientScriptManager($this);

+		return $this->_clientScript;

+	}

+

+	/**

+	 * Raises PreInit event.

+	 * This method is invoked right before {@link onInit Init} stage.

+	 * You may override this method to provide additional initialization that

+	 * should be done before {@link onInit Init} (e.g. setting {@link setTheme Theme} or

+	 * {@link setStyleSheetTheme StyleSheetTheme}).

+	 * Remember to call the parent implementation to ensure PreInit event is raised.

+	 * @param mixed event parameter

+	 */

+	protected function onPreInit($param)

+	{

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

+	}

+

+	/**

+	 * Raises InitComplete event.

+	 * This method is invoked right after {@link onInit Init} stage and before {@link onLoad Load} stage.

+	 * You may override this method to provide additional initialization that

+	 * should be done after {@link onInit Init}.

+	 * Remember to call the parent implementation to ensure InitComplete event is raised.

+	 * @param mixed event parameter

+	 */

+	protected function onInitComplete($param)

+	{

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

+	}

+

+	/**

+	 * Raises PreLoad event.

+	 * This method is invoked right before {@link onLoad Load} stage.

+	 * You may override this method to provide additional page loading logic that

+	 * should be done before {@link onLoad Load}.

+	 * Remember to call the parent implementation to ensure PreLoad event is raised.

+	 * @param mixed event parameter

+	 */

+	protected function onPreLoad($param)

+	{

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

+	}

+

+	/**

+	 * Raises LoadComplete event.

+	 * This method is invoked right after {@link onLoad Load} stage.

+	 * You may override this method to provide additional page loading logic that

+	 * should be done after {@link onLoad Load}.

+	 * Remember to call the parent implementation to ensure LoadComplete event is raised.

+	 * @param mixed event parameter

+	 */

+	protected function onLoadComplete($param)

+	{

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

+	}

+

+	/**

+	 * Raises PreRenderComplete event.

+	 * This method is invoked right after {@link onPreRender PreRender} stage.

+	 * You may override this method to provide additional preparation for page rendering

+	 * that should be done after {@link onPreRender PreRender}.

+	 * Remember to call the parent implementation to ensure PreRenderComplete event is raised.

+	 * @param mixed event parameter

+	 */

+	protected function onPreRenderComplete($param)

+	{

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

+	}

+

+	/**

+	 * Raises SaveStateComplete event.

+	 * This method is invoked right after {@link onSaveState SaveState} stage.

+	 * You may override this method to provide additional logic after page state is saved.

+	 * Remember to call the parent implementation to ensure SaveStateComplete event is raised.

+	 * @param mixed event parameter

+	 */

+	protected function onSaveStateComplete($param)

+	{

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

+	}

+

+	/**

+	 * Determines whether the current page request is a postback.

+	 * Call {@link getIsPostBack} to get the result.

+	 */

+	private function determinePostBackMode()

+	{

+		$postData=$this->_application->getRequest()->getItems();

+		if($postData->contains(TClientScriptManager::FIELD_PAGE_STATE) || $postData->contains(TClientScriptManager::FIELD_POSTBACK_TARGET))

+			$this->_postData=$postData;

+	}

+

+	/**

+	 * @return boolean whether the current page request is a postback

 	 */

-	final public function applyControlSkin($control)

+	public function getIsPostBack()

 	{

-		if($this->_theme)

-			$this->_theme->applySkin($control);

+		return $this->_postData!==null;

 	}

 

 	/**

+	 * @return IPageStatePersister page state persister

+	 */

+	protected function getPageStatePersister()

+	{

+		return $this->_pageService->getPageStatePersister();

+	}

+

+	/**

+	 * Loads page state from persistent storage.

+	 */

+	protected function loadPageState()

+	{

+		$state=$this->getPageStatePersister()->load();

+		$this->loadStateRecursive($state,$this->getEnableViewState());

+	}

+

+	/**

+	 * Saves page state from persistent storage.

+	 */

+	protected function savePageState()

+	{

+		$state=&$this->saveStateRecursive($this->getEnableViewState());

+		$this->getPageStatePersister()->save($state);

+	}

+

+	/**

+	 * Loads page state data from a hidden field.

+	 * @return string page state data stored in hidden field

+	 */

+	public function loadStateField()

+	{

+		return base64_decode($this->_postData->itemAt(TClientScriptManager::FIELD_PAGE_STATE));

+	}

+

+	/**

+	 * Saves page state data in a hidden field.

+	 * @param string string representation of the page state data.

+	 */

+	public function saveStateField($state)

+	{

+		$this->getClientScript()->registerHiddenField(TClientScriptManager::FIELD_PAGE_STATE,base64_encode($state));

+	}

+

+	public function RegisterEnabledControl($control)

+	{

+		$this->getEna.EnabledControls.Add(control);

+	}

+

+

+

+	/**

 	 * @internal

 	 */

-	final public function applyControlStyleSheet($control)

+	public function registerPostBackScript()

 	{

-		if($this->_styleSheet)

+		if($this->getClientSupportsJavaScript() && !$this->_postBackScriptRendered)

 		{

-			$this->_styleSheet->applySkin($control);

-			return true;

+			if(!$this->_requirePostBackScript)

+			{

+				$this->getClientScript()->registerHiddenField('__EVENTTARGET','');

+				$this->getClientScript()->registerHiddenField('__EVENTPARAM','');

+				$this->_requirePostBackScript=true;

+			}

 		}

-		else

-			return false;

 	}

 

-	private function renderStateFields($writer)

+	public function registerWebFormsScript()

 	{

-		$writer->write("\n<input type=\"hidden\" name=\"__STATE\" id=\"__STATE\" value=\"".$this->_pageState."\" />\n");

+		if($this->getClientSupportsJavaScript() && !$this->_webFormsScriptRendered)

+		{

+			$this->registerPostBackScript();

+			$this->_requireWebFormsScript=true;

+		}

+	}

+

+

+	public function ensureRenderInForm($control)

+	{

+		if(!$this->_inFormRender)

+			throw new THttpException('control_not_in_form',$control->getUniqueID());

 	}

 

 	private function renderPostBackScript($writer)

@@ -232,7 +512,6 @@ EOD;
 		$this->_inFormRender=true;

 

 		$this->getClientScript()->renderHiddenFields($writer);

-		//$this->renderStateFields($writer);

 		if($this->getClientSupportsJavaScript())

 		{

 			/*

@@ -280,13 +559,6 @@ EOD;
 		$this->_inFormRender=false;

 	}

 

-	final public function getClientScript()

-	{

-		if(!$this->_clientScript)

-			$this->_clientScript=new TClientScriptManager($this);

-		return $this->_clientScript;

-	}

-

 	final public function getClientOnSubmitEvent()

 	{

 		// todo

@@ -296,19 +568,6 @@ EOD;
 			return '';

 	}

 

-	final public function getValidators($validationGroup='')

-	{

-		if(!$this->_validators)

-			$this->_validators=new TList;

-		if($validationGroup==='')

-			return $this->_validators;

-		$list=new TList;

-		foreach($this->_validators as $validator)

-			if($validator->getValidationGroup()===$validationGroup)

-				$list->add($validator);

-		return $list;

-	}

-

 	protected function initializeCulture()

 	{

 	}

@@ -316,23 +575,6 @@ EOD;
 	/**

 	 * @internal

 	 */

-	public function initializeStyleSheet()

-	{

-		if($this->_styleSheet!=='')

-			$this->_styleSheet=new TTheme($this->_styleSheetName);

-	}

-

-	private function initializeThemes()

-	{

-		if($this->_themeName!=='')

-			$this->_theme=$this->getService()->getThemeManager()->getTheme($this->_themeName);

-		if($this->_styleSheetName!=='')

-			$this->_styleSheet=$this->getService()->getThemeManager()->getTheme($this->_styleSheetName);

-	}

-

-	/**

-	 * @internal

-	 */

 	public function loadScrollPosition()

 	{

 		if($this->_previousPagePath==='' && $this->_requestValueCollection)

@@ -344,44 +586,6 @@ EOD;
 		}

 	}

 

-	protected function onInit($param)

-	{

-		parent::onInit($param);/*

-		if($this->_theme)

-			$this->_theme->setStyleSheet();

-		if($this->_styleSheet)

-			$this->_styleSheet->setStyleSheet();*/

-	}

-

-	protected function onInitComplete($param)

-	{

-		$this->raiseEvent('InitComplete',$this,$param);

-	}

-

-	protected function onLoadComplete($param)

-	{

-		$this->raiseEvent('LoadComplete',$this,$param);

-	}

-

-	protected function onPreInit($param)

-	{

-		$this->raiseEvent('PreInit',$this,$param);

-	}

-

-	protected function onPreLoad($param)

-	{

-		$this->raiseEvent('PreLoad',$this,$param);

-	}

-

-	protected function onPreRenderComplete($param)

-	{

-		$this->raiseEvent('PreRenderComplete',$this,$param);

-	}

-

-	protected function onSaveStateComplete($param)

-	{

-		$this->raiseEvent('SaveStateComplete',$this,$param);

-	}

 

 	final public function registerAsyncTask()

 	{

@@ -404,64 +608,6 @@ EOD;
 		return $this->_application;

 	}

 

-	public function loadStateField()

-	{

-		return base64_decode($this->_postData->itemAt('__STATE'));

-	}

-

-	public function saveStateField($state)

-	{

-		$this->getClientScript()->registerHiddenField('__STATE',base64_encode($state));

-	}

-

-	protected function determinePostBackMode()

-	{

-		/*

-		$application=$this->getApplication();

-		if($application->getPreventPostBack())

-			return null;

-		*/

-		$postData=new TMap($this->_application->getRequest()->getItems());

-		if($postData->itemAt('__STATE')!==null || $postData->itemAt('__EVENTTARGET')!==null)

-			return $postData;

-		else

-			return null;

-	}

-

-	final public function getIsPostBack()

-	{

-		if($this->_postData)

-		{

-			if($this->_isCrossPagePostBack)

-				return true;

-			if($this->_previousPagePath!=='')

-				return false;

-			return !$this->_pageStateChanged;

-		}

-		else

-			return false;

-	}

-

-	protected function getPageStatePersister()

-	{

-		require_once(PRADO_DIR.'/Web/UI/THiddenFieldPageStatePersister.php');

-		return new THiddenFieldPageStatePersister($this);

-	}

-

-	protected function loadPageState()

-	{

-		$persister=$this->getPageStatePersister();

-		$state=$persister->load();

-		$this->loadStateRecursive($state,$this->getEnableViewState());

-	}

-

-	protected function savePageState()

-	{

-		$state=&$this->saveStateRecursive($this->getEnableViewState());

-		$persister=$this->getPageStatePersister();

-		$persister->save($state);

-	}

-

 	protected function processPostData($postData,$beforeLoad)

 	{

 		$eventTarget=$postData->itemAt('__EVENTTARGET');

@@ -551,11 +697,10 @@ EOD;
 

 	public function run($writer)

 	{

-		$this->_postData=$this->determinePostBackMode();

+		$this->determinePostBackMode();

 		$this->_restPostData=new TMap;

 

 		$this->onPreInit(null);

-		$this->initializeThemes();

 		$this->_preInitWorkComplete=true;

 

 		$this->initRecursive(null);

@@ -587,30 +732,6 @@ EOD;
 		$this->unloadRecursive();

 	}

 

-	public function getTheme()

-	{

-		return $this->_themeName;

-	}

-

-	public function setTheme($value)

-	{

-		$this->_themeName=$value;

-	}

-

-	public function getStyleSheetTheme()

-	{

-		return $this->_styleSheetName;

-	}

-

-	public function setStyleSheetTheme($value)

-	{

-		$this->_styleSheetName=$value;

-	}

-

-	public function getContainsTheme()

-	{

-		return $this->_theme!==null;

-	}

 }

 

 ?>
\ No newline at end of file
diff --git a/framework/Web/UI/WebControls/TButton.php b/framework/Web/UI/WebControls/TButton.php
index 4eb8e093..6c423d84 100644
--- a/framework/Web/UI/WebControls/TButton.php
+++ b/framework/Web/UI/WebControls/TButton.php
@@ -78,7 +78,7 @@ class TButton extends TWebControl implements IPostBackEventHandler
 			$onclick=$this->getOnClientClick();

 			if($onclick!=='')

 				$onclick=rtrim($onclick,';').';';

-			$onclick.=$page->getClientScript()->getPostBackEventReference($this->getPostBackOptions());

+			$onclick.=$page->getClientScript()->getPostBackEventReference($this,'',$this->getPostBackOptions(),false);

 		}

 		else if($this->getEnabled())   // in this case, parent will not render 'disabled'

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

diff --git a/framework/Web/UI/WebControls/TCheckBox.php b/framework/Web/UI/WebControls/TCheckBox.php
index 756fb2ea..7b9d4702 100644
--- a/framework/Web/UI/WebControls/TCheckBox.php
+++ b/framework/Web/UI/WebControls/TCheckBox.php
@@ -381,10 +381,10 @@ class TCheckBox extends TWebControl implements IPostBackDataHandler, IValidatabl
 				$option->AutoPostBack=true;

 			if(!empty($onclick))

 				$onclick=rtrim($onclick,';').';';

-			$onclick.=$page->getClientScript()->getPostBackEventReference($option);

+			$onclick.=$page->getClientScript()->getPostBackEventReference($this,'',$option,false);

 		}

 		if(!empty($onclick))

-			$writer->addAttribute('onclick',$onclick);

+			$writer->addAttribute('onclick','javascript:'.$onclick);

 		if(($accesskey=$this->getAccessKey())!=='')

 			$writer->addAttribute('accesskey',$accesskey);

 		if(($tabindex=$this->getTabIndex())>0)

diff --git a/framework/Web/UI/WebControls/TImageButton.php b/framework/Web/UI/WebControls/TImageButton.php
index d715480d..b0fb5a8b 100644
--- a/framework/Web/UI/WebControls/TImageButton.php
+++ b/framework/Web/UI/WebControls/TImageButton.php
@@ -74,7 +74,7 @@ class TImageButton extends TImage implements IPostBackDataHandler, IPostBackEven
 			$onclick=$this->getOnClientClick();

 			if($onclick!=='')

 				$onclick=rtrim($onclick,';').';';

-			$onclick.=$page->getClientScript()->getPostBackEventReference($this->getPostBackOptions());

+			$onclick.=$page->getClientScript()->getPostBackEventReference($this,'',$this->getPostBackOptions(),false);

 		}

 		else if($this->getEnabled())   // in this case, parent will not render 'disabled'

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

diff --git a/framework/core.php b/framework/core.php
index 5c3d645c..84077a04 100644
--- a/framework/core.php
+++ b/framework/core.php
@@ -287,6 +287,30 @@ interface IUser
 }

 

 /**

+ * IPageStatePersister class.

+ *

+ * This interface must be implemented by all page state persister classes.

+ *

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

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

+ * @package System

+ * @since 3.0

+ */

+interface IPageStatePersister

+{

+	/**

+	 * Loads state from a persistent storage.

+	 * @return mixed the state

+	 */

+	public function load();

+	/**

+	 * Saves state into a persistent storage.

+	 * @param mixed the state to be saved

+	 */

+	public function save($state);

+}

+

+/**

  * PradoBase class.

  *

  * PradoBase implements a few fundamental static methods.