michael@0: /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0:  */
michael@0: 
michael@0: interface nsIVariant;
michael@0: 
michael@0: [ChromeOnly]
michael@0: interface DataContainerEvent : Event {
michael@0:   /**
michael@0:    * Return the data associated with the given key.
michael@0:    *
michael@0:    * @param  key  the key
michael@0:    * @return      the data associated with the key
michael@0:    */
michael@0:   nsIVariant? getData(DOMString? key);
michael@0: 
michael@0:   /**
michael@0:    * Set the data for the given key.
michael@0:    *
michael@0:    * @param  key   the data key
michael@0:    * @param  data  the data
michael@0:    * @throws       NS_ERROR_UNEXPECTED if the method is called during event
michael@0:    *               dispatch
michael@0:    */
michael@0:   [Throws]
michael@0:   void setData(DOMString? key, any data);
michael@0: };
michael@0: