Committed TComponent patch by javalizard

TComponent Update: Behaviors, Class Behaviors, fx global events, and dy
one to one events.
This patchset was currently available only on svn trunk/

1 files changed, 87 insertions, 0 deletions

diff --git a/framework/Util/TBehavior.php b/framework/Util/TBehavior.php
new file mode 100644
index 00000000..951a758f
--- /dev/null
+++ b/framework/Util/TBehavior.php
@@ -0,0 +1,87 @@
+<?php
+/**
+ * TBehavior class file.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright &copy; 2008-2009 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+/**
+ * TBehavior is a convenient base class for behavior classes.
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Id: TBehaviour.php 3211 2012-10-31 02:35:01Z javalizard@gmail.com $
+ * @package System.Util
+ * @since 3.2.3
+ */
+class TBehavior extends TComponent implements IBehavior
+{
+	private $_enabled;
+	private $_owner;
+
+	/**
+	 * Declares events and the corresponding event handler methods.
+	 * The events are defined by the {@link owner} component, while the handler
+	 * methods by the behavior class. The handlers will be attached to the corresponding
+	 * events when the behavior is attached to the {@link owner} component; and they
+	 * will be detached from the events when the behavior is detached from the component.
+	 * @return array events (array keys) and the corresponding event handler methods (array values).
+	 */
+	public function events()
+	{
+		return array();
+	}
+
+	/**
+	 * Attaches the behavior object to the component.
+	 * The default implementation will set the {@link owner} property
+	 * and attach event handlers as declared in {@link events}.
+	 * Make sure you call the parent implementation if you override this method.
+	 * @param TComponent the component that this behavior is to be attached to.
+	 */
+	public function attach($owner)
+	{
+		$this->_owner=$owner;
+		foreach($this->events() as $event=>$handler)
+			$owner->attachEventHandler($event,array($this,$handler));
+	}
+
+	/**
+	 * Detaches the behavior object from the component.
+	 * The default implementation will unset the {@link owner} property
+	 * and detach event handlers declared in {@link events}.
+	 * Make sure you call the parent implementation if you override this method.
+	 * @param TComponent the component that this behavior is to be detached from.
+	 */
+	public function detach($owner)
+	{
+		foreach($this->events() as $event=>$handler)
+			$owner->detachEventHandler($event,array($this,$handler));
+		$this->_owner=null;
+	}
+
+	/**
+	 * @return TComponent the owner component that this behavior is attached to.
+	 */
+	public function getOwner()
+	{
+		return $this->_owner;
+	}
+
+	/**
+	 * @return boolean whether this behavior is enabled
+	 */
+	public function getEnabled()
+	{
+		return $this->_enabled;
+	}
+
+	/**
+	 * @param boolean whether this behavior is enabled
+	 */
+	public function setEnabled($value)
+	{
+		$this->_enabled=$value;
+	}
+}
\ No newline at end of file