Adding Callback foundations.

1 files changed, 157 insertions, 6 deletions

diff --git a/framework/Web/UI/TPage.php b/framework/Web/UI/TPage.php
index e34101d9..31c80320 100644
--- a/framework/Web/UI/TPage.php
+++ b/framework/Web/UI/TPage.php
@@ -36,7 +36,7 @@ class TPage extends TTemplateControl
 	const FIELD_PAGESTATE='PRADO_PAGESTATE';

 	const FIELD_CALLBACK_TARGET='PRADO_CALLBACK_TARGET';

 	const FIELD_CALLBACK_PARAMETER='PRADO_CALLBACK_PARAMETER';

-	const FIELD_CALLBACK_ID='PRADO_CALLBACK_ID';

+//	const FIELD_CALLBACK_ID='PRADO_CALLBACK_ID';

 	/**

 	 * @var array system post fields

 	 */

@@ -46,8 +46,8 @@ class TPage extends TTemplateControl
 		'PRADO_LASTFOCUS'=>true,

 		'PRADO_PAGESTATE'=>true,

 		'PRADO_CALLBACK_TARGET'=>true,

-		'PRADO_CALLBACK_PARAMETER'=>true,

-		'PRADO_CALLBACK_ID'=>true

+		'PRADO_CALLBACK_PARAMETER'=>true

+		//'PRADO_CALLBACK_ID'=>true

 	);

 	/**

 	 * @var TForm form instance

@@ -149,7 +149,11 @@ class TPage extends TTemplateControl
 	 * @var string state string to be stored on the client side

 	 */

 	private $_clientState='';

-

+	/**

+	 * @var array post data loader IDs.

+	 */

+	private $_postDataLoaders=array();

+	

 	/**

 	 * Constructor.

 	 * Sets the page object to itself.

@@ -259,11 +263,159 @@ class TPage extends TTemplateControl
 		$this->unloadRecursive();

 	}

 

+	/**

+	 * Sets Adapter to TActivePageAdapter and calls apter to process the

+	 * callback request.

+	 */

 	protected function processCallbackRequest($writer)

 	{

+		$this->setAdapter(new TActivePageAdapter($this));

+		

+		Prado::trace("Page onPreInit()",'System.Web.UI.TPage');

+		$this->onPreInit(null);

+

+		Prado::trace("Page initRecursive()",'System.Web.UI.TPage');

+		$this->initRecursive();

+

+		Prado::trace("Page onInitComplete()",'System.Web.UI.TPage');

+		$this->onInitComplete(null);

+

+		$this->_restPostData=new TMap;

+		Prado::trace("Page loadPageState()",'System.Web.UI.TPage');

+		$this->loadPageState();

+		Prado::trace("Page processPostData()",'System.Web.UI.TPage');

+		$this->processPostData($this->_postData,true);

+		Prado::trace("Page onPreLoad()",'System.Web.UI.TPage');

+		$this->onPreLoad(null);

+		Prado::trace("Page loadRecursive()",'System.Web.UI.TPage');

+		$this->loadRecursive();

+		Prado::trace("Page processPostData()",'System.Web.UI.TPage');

+		$this->processPostData($this->_restPostData,false);

+		Prado::trace("Page raiseChangedEvents()",'System.Web.UI.TPage');

+		$this->raiseChangedEvents();

+

+		$this->getAdapter()->processCallbackEvent($writer); 

+

+/*		

+		Prado::trace("Page raisePostBackEvent()",'System.Web.UI.TPage');

+		$this->raisePostBackEvent();

+*/		

+		Prado::trace("Page onLoadComplete()",'System.Web.UI.TPage');

+		$this->onLoadComplete(null);

+

+		Prado::trace("Page preRenderRecursive()",'System.Web.UI.TPage');

+		$this->preRenderRecursive();

+		Prado::trace("Page onPreRenderComplete()",'System.Web.UI.TPage');

+		$this->onPreRenderComplete(null);

+

+/*		Prado::trace("Page savePageState()",'System.Web.UI.TPage');

+		$this->savePageState();

+		Prado::trace("Page onSaveStateComplete()",'System.Web.UI.TPage');

+		$this->onSaveStateComplete(null);

+

+		Prado::trace("Page renderControl()",'System.Web.UI.TPage');

+		$this->renderControl($writer);

+*/

+		$this->getAdapter()->renderCallbackResponse($writer);

+		

+		Prado::trace("Page unloadRecursive()",'System.Web.UI.TPage');

+		$this->unloadRecursive();			

+	}

+	

+	/**

+	 * Gets the callback response handler that permits changing the callback

+	 * response headers and contents.

+	 * @return TCallbackResponse callback response handler.

+	 */

+	public function getCallbackResponse()

+	{

+		return $this->getAdapter()->getCallbackResponseHandler();

+	}

+	

+	/**

+	 * Set a new callback respond handler.

+	 * @param TCallbackResponse a different callback response handler.

+	 */

+	public function setCallbackResponse($responder)

+	{

+		$this->getAdapter()->setCallbackResponseHandler($responder);

+	}

+	

+	/**

+	 * Gets the callback client script handler that allows javascript functions

+	 * to be executed during the callback response. 

+	 * @return TCallbackClientScript interface to client-side javascript code.

+	 */

+	public function getCallbackClient()

+	{

+		return $this->getAdapter()->getCallbackClientHandler();

+	}

+	

+	/**

+	 * Set a new callback client handler.

+	 * @param TCallbackClientScript new callback client script handler.

+	 */

+	public function setCallbackClient($client)

+	{

+		$this->getAdapter()->setCallbackClientHandler($client);

+	}

+	

+	/**

+	 * @return TControl the control responsible for the current callback event,

+	 * null if nonexistent

+	 */

+	public function getCallbackEventTarget()

+	{

+		return $this->getAdapter()->getCallbackEventTarget();

 	}

 

 	/**

+	 * Registers a control to raise callback event in the current request.

+	 * @param TControl control registered to raise callback event.

+	 */

+	public function setCallbackEventTarget(TControl $control)

+	{

+		$this->getAdapter()->setCallbackEventTarget($control);

+	}

+

+	/**

+	 * Callback parameter is decoded assuming JSON encoding. 

+	 * @return string callback event parameter

+	 */

+	public function getCallbackEventParameter()

+	{

+		return $this->getAdapter()->getCallbackEventParameter();

+	}

+	

+	/**

+	 * @param mixed callback event parameter

+	 */

+	public function setCallbackEventParameter($value)

+	{

+		$this->getAdapter()->setCallbackEventParameter($value);

+	}

+	

+	/**

+	 * Register post data loaders for Callback to collect post data.

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

+	 * @param TControl control that requires post data.

+	 * @see TControl::preRenderRecursive();

+	 */

+	public function registerPostDataLoader($control)

+	{

+		$this->_postDataLoaders[] = $control->getUniqueID();

+	}

+	

+	/**

+	 * Get a list of IDs of controls that are enabled and require post data.

+	 * @return array list of IDs implementing IPostBackDataHandler

+	 */

+	public function getPostDataLoaders()

+	{

+		return $this->_postDataLoaders;

+	}

+	

+	/**

 	 * @return TForm the form on the page

 	 */

 	public function getForm()

@@ -541,12 +693,11 @@ class TPage extends TTemplateControl
 	}

 

 	/**

-	 * TBD

 	 * @return boolean whether this is a callback request

 	 */

 	public function getIsCallback()

 	{

-		return false;

+		return $this->getIsPostBack() && $this->getRequest()->contains(self::FIELD_CALLBACK_TARGET);

 	}

 

 	/**