2 new callback handling classes

tobiasz.cudnik · tobiasz.cudnik · commit ba5be030c49b · 2009-01-24T14:01:02.000Z
diff --git a/phpQuery/Callback.php b/phpQuery/Callback.php
@@ -24,7 +24,48 @@ public function param() {
 		return new Callback($this->callback, $this->params+$params);
 	}
 }
-class CallbackReference extends Callback{
+class CallbackReturnReference extends Callback {
+	protected $reference;
+	public function __construct(&$reference, $name = null){
+		$this->reference =& $reference;
+		$this->callback = array($this, 'callback');
+	}
+	public function callback() {
+		return $this->reference;
+	}
+}
+class CallbackReturnValue extends Callback {
+	protected $value;
+	public function __construct($value, $name = null){
+		$this->value =& $value;
+		$this->callback = array($this, 'callback');
+	}
+	public function callback() {
+		return $this->value;
+	}
+}
+/**
+ * CallbackParameterToReference can be used when we don't really want a callback,
+ * only parameter passed to it. CallbackReference takes first parameter's value
+ * and passes it to reference. Thanks to that, we can use *if statement* instead
+ * of *callback function*.
+ *
+ * @author Tobiasz Cudnik <tobiasz.cudnik/gmail.com>
+ *
+ */
+class CallbackParameterToReference extends Callback {
+	/**
+	 *
+	 * @param $reference
+	 * @param $paramIndex
+	 * @TODO implement $paramIndex; 
+	 * param index choose which callback param will be passed to reference
+	 */
+	public function __construct(&$reference, $paramIndex = null){
+		$this->callback =& $reference;
+	}
+}
+class CallbackReference extends Callback {
 	/**
 	 *
 	 * @param $reference
