<?php

Prado::using('System.Web.UI.ActiveControls.TActiveControlAdapter');


class MyDraggable extends TWebControl implements IActiveControl, ICallbackEventHandler
{
	/**
	 * Creates a new callback control, sets the adapter to
	 * TActiveControlAdapter. If you override this class, be sure to set the
	 * adapter appropriately by, for example, by calling this constructor.
	 */
	public function __construct()
	{
		$this->setAdapter(new TActiveControlAdapter($this));
		parent::__construct();
	}

	/**
	 * @return TBaseActiveCallbackControl standard callback control options.
	 */
	public function getActiveControl()
	{
		return $this->getAdapter()->getBaseActiveControl();
	}

	/**
	 * @return TCallbackClientSide client side request options.
	 */
	public function getClientSide()
	{
		return $this->getAdapter()->getBaseActiveControl()->getClientSide();
	}

	/**
	 * Raises the callback event. This method is required by {@link
	 * ICallbackEventHandler} interface.
	 * This method is mainly used by framework and control developers.
	 * @param TCallbackEventParameter the event parameter
	 */
 	public function raiseCallbackEvent($param)
	{
		$this->onCallback($param);
	}

	/**
	 * This method is invoked when a callback is requested. The method raises
	 * 'OnCallback' event to fire up the event handlers. If you override this
	 * method, be sure to call the parent implementation so that the event
	 * handler can be invoked.
	 * @param TCallbackEventParameter event parameter to be passed to the event handlers
	 */
	public function onCallback($param)
	{
		$this->raiseEvent('OnCallback', $this, $param);
	}

	/**
	 * Gets the name of the javascript class responsible for performing postback for this control.
	 * This method overrides the parent implementation.
	 * @return string the javascript class name
	 */
	protected function getClientClassName()
	{
		return 'MyDraggable';
	}

	/**
	 * Override parent implementation, no javascript is rendered here instead
	 * the javascript required for active control is registered in {@link addAttributesToRender}.
	 */
	protected function renderClientControlScript($writer)
	{
	}

	/**
	 * Ensure that the ID attribute is rendered and registers the javascript code
	 * for initializing the active control.
	 */
	protected function addAttributesToRender($writer)
	{
		parent::addAttributesToRender($writer);
		$writer->addAttribute('id',$this->getClientID());

		$this->getActiveControl()->registerCallbackClientScript(
			$this->getClientClassName(), $this->getPostBackOptions());
	}

	/**
	 * Determine if draggable element should revert to it orginal position
	 * upon release in an non-droppable container.
	 * @return boolean true to revert
	 */
	public function getRevert()
	{
		return $this->getViewState('revert', true);
	}

	/**
	 * Sets whether the draggable element should revert to it orginal position
	 * upon release in an non-droppable container.
	 * @param boolean true to revert
	 */
	public function setRevert($value)
	{
		$this->setViewState('revert', $value, true);
	}
	/**
	 * @return boolean a value indicating whether an automatic postback to the server
     * will occur whenever the user modifies the text in the TTextBox control and
     * then tabs out of the component. Defaults to false.
	 */
	public function getAutoPostBack()
	{
		return $this->getViewState('AutoPostBack',false);
	}

	/**
	 * Sets the value indicating if postback automatically.
	 * An automatic postback to the server will occur whenever the user
	 * modifies the text in the TTextBox control and then tabs out of the component.
	 * @param boolean the value indicating if postback automatically
	 */
	public function setAutoPostBack($value)
	{
		$this->setViewState('AutoPostBack',TPropertyValue::ensureBoolean($value),false);
	}
	/**
	 * Gets the post back options for this textbox.
	 * @return array
	 */
	protected function getPostBackOptions()
	{
		$options['ID'] = $this->getClientID();
		$options['EventTarget'] = $this->getUniqueID();
		$options['AutoPostBack'] = $this->getAutoPostBack();

		return $options;
	}

}

?>