From 01bc363ac789cfb9d644ce82a949da5cd7e1c220 Mon Sep 17 00:00:00 2001
From: xue <>
Date: Tue, 31 Jan 2006 00:01:49 +0000
Subject: Modified TList and TMap implementation so that they can be more
 easily extended.

---
 framework/Web/UI/TControl.php | 43 +++++++++++++++++++++++++------------------
 1 file changed, 25 insertions(+), 18 deletions(-)

(limited to 'framework/Web/UI/TControl.php')

diff --git a/framework/Web/UI/TControl.php b/framework/Web/UI/TControl.php
index 7b9fee4e..ee1b8e11 100644
--- a/framework/Web/UI/TControl.php
+++ b/framework/Web/UI/TControl.php
@@ -1487,32 +1487,39 @@ class TControlList extends TList
 	}
 
 	/**
-	 * Overrides the parent implementation with customized processing of the newly added item.
-	 * @param mixed the newly added item
-	 */
-	protected function addedItem($item)
-	{
-		if($item instanceof TControl)
+	 * Inserts an item at the specified position.
+	 * This overrides the parent implementation by performing additional
+	 * operations for each newly added child control.
+	 * @param integer the speicified position.
+	 * @param mixed new item
+	 * @throws TInvalidDataTypeException if the item to be inserted is neither a string nor a TControl.
+	 */
+	public function insertAt($index,$item)
+	{
+		if(is_string($item))
+			parent::insertAt($index,$item);
+		else if($item instanceof TControl)
+		{
+			parent::insertAt($index,$item);
 			$this->_o->addedControl($item);
+		}
+		else
+			throw new TInvalidDataTypeException('controllist_control_required');
 	}
 
 	/**
-	 * Overrides the parent implementation with customized processing of the removed item.
-	 * @param mixed the removed item
+	 * Removes an item at the specified position.
+	 * This overrides the parent implementation by performing additional
+	 * cleanup work when removing a child control.
+	 * @param integer the index of the item to be removed.
+	 * @return mixed the removed item.
 	 */
-	protected function removedItem($item)
+	public function removeAt($index)
 	{
+		$item=parent::removeAt($index);
 		if($item instanceof TControl)
 			$this->_o->removedControl($item);
-	}
-
-	/**
-	 * Only string or instance of TControl can be added into collection.
-	 * @param mixed the item to be added
-	 */
-	protected function canAddItem($item)
-	{
-		return is_string($item) || ($item instanceof TControl);
+		return $item;
 	}
 
 	/**
-- 
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