From e51b31535521738c7bd8fc8d89e80d57f11eddda Mon Sep 17 00:00:00 2001
From: xue <>
Date: Thu, 10 Aug 2006 01:10:41 +0000
Subject: Added support to preset of TListControl.SelectedIndices and
 SelectedValues.

---
 framework/Web/UI/WebControls/TListControl.php | 80 +++++++++++++++++----------
 1 file changed, 51 insertions(+), 29 deletions(-)

(limited to 'framework/Web/UI/WebControls')

diff --git a/framework/Web/UI/WebControls/TListControl.php b/framework/Web/UI/WebControls/TListControl.php
index 15b6ec94..1c65259c 100644
--- a/framework/Web/UI/WebControls/TListControl.php
+++ b/framework/Web/UI/WebControls/TListControl.php
@@ -94,6 +94,8 @@ abstract class TListControl extends TDataBoundControl
 	 */
 	private $_cachedSelectedIndex=-1;
 	private $_cachedSelectedValue=null;
+	private $_cachedSelectedIndices=null;
+	private $_cachedSelectedValues=null;
 
 	/**
 	 * @return string tag name of the list control
@@ -204,20 +206,34 @@ abstract class TListControl extends TDataBoundControl
 		// so we make them be effective now
 		if($this->_cachedSelectedValue!==null)
 		{
-			$index=$items->findIndexByValue($this->_cachedSelectedValue);
-			if($index===-1 || ($this->_cachedSelectedIndex!==-1 && $this->_cachedSelectedIndex!==$index))
-				throw new TInvalidDataValueException('listcontrol_selection_invalid',get_class($this));
-			$this->setSelectedIndex($index);
-			$this->_cachedSelectedValue=null;
-			$this->_cachedSelectedIndex=-1;
+			$this->setSelectedValue($this->_cachedSelectedValue);
+			$this->resetCachedSelections();
 		}
 		else if($this->_cachedSelectedIndex!==-1)
 		{
 			$this->setSelectedIndex($this->_cachedSelectedIndex);
-			$this->_cachedSelectedIndex=-1;
+			$this->resetCachedSelections();
+		}
+		else if($this->_cachedSelectedValues!==null)
+		{
+			$this->setSelectedValues($this->_cachedSelectedValues);
+			$this->resetCachedSelections();
+		}
+		else if($this->_cachedSelectedIndices!==null)
+		{
+			$this->setSelectedIndices($this->_cachedSelectedIndices);
+			$this->resetCachedSelections();
 		}
 	}
 
+	private function resetCachedSelections()
+	{
+		$this->_cachedSelectedValue=null;
+		$this->_cachedSelectedIndex=-1;
+		$this->_cachedSelectedValues=null;
+		$this->_cachedSelectedIndices=null;
+	}
+
 	/**
 	 * Creates a collection object to hold list items.
 	 * This method may be overriden to create a customized collection.
@@ -446,23 +462,26 @@ abstract class TListControl extends TDataBoundControl
 	}
 
 	/**
-	 * Selects a list of values by their indices.
-	 * Unlike {@link setSelectedIndex}, this function should only be called
-	 * after the list items are populated. Otherwise, it would have no effect.
 	 * @param array list of index of items to be selected
 	 */
 	public function setSelectedIndices($indices)
 	{
-		if($this->_items)
+		if($this->getIsMultiSelect())
 		{
-			$this->clearSelection();
-			$n=$this->_items->getCount();
-			foreach($indices as $index)
+			if($this->_items)
 			{
-				if($index>=0 && $index<$n)
-					$this->_items->itemAt($index)->setSelected(true);
+				$this->clearSelection();
+				$n=$this->_items->getCount();
+				foreach($indices as $index)
+				{
+					if($index>=0 && $index<$n)
+						$this->_items->itemAt($index)->setSelected(true);
+				}
 			}
+			$this->_cachedSelectedIndices=$indices;
 		}
+		else
+			throw new TNotSupportedException('listcontrol_multiselect_unsupported',get_class($this));
 	}
 
 	/**
@@ -527,27 +546,30 @@ abstract class TListControl extends TDataBoundControl
 	}
 
 	/**
-	 * Selects a list of values.
-	 * Unlike {@link setSelectedValue}, this function should only be called
-	 * after the list items are populated. Otherwise, it would have no effect.
 	 * @param array list of the selected item values
 	 */
 	public function setSelectedValues($values)
 	{
-		if($this->_items)
+		if($this->getIsMultiSelect())
 		{
-			$this->clearSelection();
-			$lookup=array();
-			foreach($this->_items as $item)
-				$lookup[$item->getValue()]=$item;
-			foreach($values as $value)
+			if($this->_items)
 			{
-				if(isset($lookup["$value"]))
-					$lookup["$value"]->setSelected(true);
-		    	else
-		    		throw new TInvalidDataValueException('listcontrol_selectedvalue_invalid',get_class($this),$value);
+				$this->clearSelection();
+				$lookup=array();
+				foreach($this->_items as $item)
+					$lookup[$item->getValue()]=$item;
+				foreach($values as $value)
+				{
+					if(isset($lookup["$value"]))
+						$lookup["$value"]->setSelected(true);
+			    	else
+			    		throw new TInvalidDataValueException('listcontrol_selectedvalue_invalid',get_class($this),$value);
+				}
 			}
+			$this->_cachedSelectedValues=$values;
 		}
+		else
+			throw new TNotSupportedException('listcontrol_multiselect_unsupported',get_class($this));
 	}
 
     /**
-- 
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