From 55c4ac1bfe565f1ca7f537fdd8b7a201be28e581 Mon Sep 17 00:00:00 2001
From: xue <>
Date: Thu, 10 Nov 2005 12:47:19 +0000
Subject: Initial import of prado framework

---
 framework/Web/UI/WebControls/THiddenField.php | 123 ++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 framework/Web/UI/WebControls/THiddenField.php

(limited to 'framework/Web/UI/WebControls/THiddenField.php')

diff --git a/framework/Web/UI/WebControls/THiddenField.php b/framework/Web/UI/WebControls/THiddenField.php
new file mode 100644
index 00000000..c46f1cda
--- /dev/null
+++ b/framework/Web/UI/WebControls/THiddenField.php
@@ -0,0 +1,123 @@
+<?php
+/**
+ * THiddenField class file.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.xisc.com/
+ * @copyright Copyright &copy; 2004-2005, Qiang Xue
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD License
+ * @version $Revision: $  $Date: $
+ * @package System.Web.UI.WebControls
+ */
+
+/**
+ * THiddenField class
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $  $Date: $
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class THiddenField extends TControl implements IPostBackDataHandler
+{
+	/**
+	 * @return string tag name of the hyperlink
+	 */
+	protected function getTagName()
+	{
+		return 'input';
+	}
+
+	public function focus()
+	{
+		throw new TInvalidOperationException('xxx');
+	}
+
+	protected function addAttributesToRender($writer)
+	{
+		$page=$this->getPage();
+		$page->ensureRenderInForm($this);
+		$writer->addAttribute('type','hidden');
+		if(($uid=$this->getUniqueID())!=='')
+			$writer->addAttribute('name',$uid);
+		if(($id=$this->getID())!=='')
+			$writer->addAttribute('id',$id);
+		if(($value=$this->getValue())!=='')
+			$writer->addAttribute('value',$value);
+	}
+
+	/**
+	 * @return string the value of the THiddenField
+	 */
+	public function getValue()
+	{
+		return $this->getViewState('Value','');
+	}
+
+	/**
+	 * Sets the value of the THiddenField
+	 * @param string the value to be set
+	 */
+	public function setValue($value)
+	{
+		$this->setViewState('Value',$value,'');
+	}
+
+	public function getEnableTheming()
+	{
+		return false;
+	}
+
+	public function setEnableTheming($value)
+	{
+		throw new TInvalidOperationException('no_theming_support');
+	}
+
+	public function setSkinID($value)
+	{
+		throw new TInvalidOperationException('no_theming_support');
+	}
+
+	/**
+	 * Loads hidden field data.
+	 * This method is primarly used by framework developers.
+	 * @param string the key that can be used to retrieve data from the input data collection
+	 * @param array the input data collection
+	 * @return boolean whether the data of the component has been changed
+	 */
+	public function loadPostData($key,$values)
+	{
+		$value=$values[$key];
+		if($value===$this->getValue())
+			return false;
+		else
+		{
+			$this->setValue($value);
+			return true;
+		}
+	}
+
+	/**
+	 * Raises postdata changed event.
+	 * This method calls {@link onValueChanged} method.
+	 * This method is primarly used by framework developers.
+	 */
+	public function raisePostDataChangedEvent()
+	{
+		$this->onValueChanged(new TEventParameter);
+	}
+
+	/**
+	 * This method is invoked when the value of the <b>Value</b> property changes between posts to the server.
+	 * The method raises 'ValueChanged' event to fire up the event delegates.
+	 * If you override this method, be sure to call the parent implementation
+	 * so that the event delegates can be invoked.
+	 * @param TEventParameter event parameter to be passed to the event handlers
+	 */
+	public function onValueChanged($param)
+	{
+		$this->raiseEvent('ValueChanged',$this,$param);
+	}
+}
+
+?>
\ No newline at end of file
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