1 files changed, 142 insertions, 1 deletions

diff --git a/framework/Web/UI/ActiveControls/TActiveRadioButton.php b/framework/Web/UI/ActiveControls/TActiveRadioButton.php
index b9497051..334de3a1 100644
--- a/framework/Web/UI/ActiveControls/TActiveRadioButton.php
+++ b/framework/Web/UI/ActiveControls/TActiveRadioButton.php
@@ -14,6 +14,17 @@
 /**
  * TActiveRadioButton class.
  *
+ * The active control counter part to radio button. The {@link setAutoPostBack AutoPostBack}
+ * property is set to true by default. Thus, when the radio button is clicked a
+ * {@link onCallback OnCallback} event is raise after {@link OnCheckedChanged} event.
+ *
+ * The {@link setText Text} and {@link setChecked Checked} properties can be
+ * changed during a callback.
+ *
+ * The {@link setGroupName GroupName} property may <b>NOT</b> be changed
+ * during callback because the client-side <tt>name</tt> attribute is read-only
+ * and can not be changed using javascript.
+ *
  * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
  * @version $Revision: $  Mon Jun 26 00:47:14 EST 2006 $
  * @package System.Web.UI.ActiveControls
@@ -21,7 +32,137 @@
  */
 class TActiveRadioButton extends TRadioButton implements IActiveControl, ICallbackEventHandler
 {
-	
+	/**
+	 * Creates a new callback control, sets the adapter to
+	 * TActiveControlAdapter. If you override this class, be sure to set the
+	 * adapter appropriately by, for example, by calling this constructor.
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+		$this->setAdapter(new TActiveControlAdapter($this));
+		$this->setAutoPostBack(true);
+	}
+
+	/**
+	 * @return TBaseActiveCallbackControl standard callback control options.
+	 */
+	public function getActiveControl()
+	{
+		return $this->getAdapter()->getBaseActiveControl();
+	}
+
+	/**
+	 * Raises the callback event. This method is required by {@link
+	 * ICallbackEventHandler} interface.
+	 * This method is mainly used by framework and control developers.
+	 * @param TCallbackEventParameter the event parameter
+	 */
+ 	public function raiseCallbackEvent($param)
+	{
+		$this->onCallback($param);
+	}
+
+	/**
+	 * This method is invoked when a callback is requested. The method raises
+	 * 'OnCallback' event to fire up the event handlers. If you override this
+	 * method, be sure to call the parent implementation so that the event
+	 * handler can be invoked.
+	 * @param TCallbackEventParameter event parameter to be passed to the event handlers
+	 */
+	public function onCallback($param)
+	{
+		$this->raiseEvent('OnCallback', $this, $param);
+	}
+
+	/**
+	 * Updates the button text on the client-side if the
+	 * {@link setEnableUpdate EnableUpdate} property is set to true.
+	 * @param string caption of the button
+	 */
+	public function setText($value)
+	{
+		parent::setText($value);
+		if($this->getActiveControl()->canUpdateClientSide())
+			$this->getPage()->getCallbackClient()->update(
+				$this->getDefaultLabelID(), $value);
+	}
+
+	/**
+	 * Checks the radio button.
+	 * Updates radio button checked state on the client-side if the
+	 * {@link setEnableUpdate EnableUpdate} property is set to true.
+	 * @param boolean whether the radio button is to be checked or not.
+	 */
+	public function setChecked($value)
+	{
+		$value = TPropertyValue::ensureBoolean($value);
+		parent::setChecked($value);
+		if($value && $this->getActiveControl()->canUpdateClientSide())
+			$this->getPage()->getCallbackClient()->check($this, $value);
+	}
+
+	/**
+	 * Add the group name as post data loader if group name is set.
+	 */
+	protected function addToPostDataLoader()
+	{
+		parent::addToPostDataLoader();
+		$group = $this->getGroupName();
+		if(!empty($group))
+			$this->getPage()->registerPostDataLoader($group);
+	}
+
+	/**
+	 * Registers the javascript code for initializing the active control.
+	 */
+	protected function renderClientControlScript($writer)
+	{
+		$this->getActiveControl()->registerCallbackClientScript(
+			$this->getClientClassName(), $this->getPostBackOptions());
+	}
+
+	/**
+	 * @return string corresponding javascript class name for this TActiveRadioButton.
+	 */
+	protected function getClientClassName()
+	{
+		return 'Prado.WebUI.TActiveRadioButton';
+	}
+
+	/**
+	 * Overrides parent implementation to ensure label has ID.
+	 * @return TMap list of attributes to be rendered for label beside the radio button
+	 */
+	public function getLabelAttributes()
+	{
+		$attributes = parent::getLabelAttributes();
+		$attributes['id'] = $this->getDefaultLabelID();
+		return $attributes;
+	}
+
+	/**
+	 * Renders a label beside the radio button.
+	 * @param THtmlWriter the writer for the rendering purpose
+	 * @param string radio button id
+	 * @param string label text
+	 */
+	protected function renderLabel($writer,$clientID,$text)
+	{
+		$writer->addAttribute('id', $this->getDefaultLabelID());
+		parent::renderLabel($writer, $clientID, $text);
+	}
+
+	/**
+	 * @return string radio button label ID;
+	 */
+	protected function getDefaultLabelID()
+	{
+		if($attributes=$this->getViewState('LabelAttributes',null))
+			return $this->getLabelAttributes()->itemAt('id');
+		else
+			return $this->getClientID().'_label';
+	}
 }
 
 ?>
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