gecko-dev/widget/nsIRollupListener.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Rod Spears <rods@netscape.com>
* Stuart Parmenter <pavlov@netscape.com>
* Dean Tessman <dean_tessman@hotmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef __nsIRollupListener_h__
#define __nsIRollupListener_h__
#include "nsTArray.h"
class nsIContent;
class nsIWidget;
class nsIRollupListener {
public:
/**
* Notifies the object to rollup, optionally returning the node that
* was just rolled up.
*
* aCount is the number of popups in a chain to close. If this is
* PR_UINT32_MAX, then all popups are closed.
* If aGetLastRolledUp is true, then return the last rolled up popup,
* if this is supported.
*/
virtual nsIContent* Rollup(PRUint32 aCount, bool aGetLastRolledUp = false) = 0;
/**
* Asks the RollupListener if it should rollup on mousevents
*/
virtual bool ShouldRollupOnMouseWheelEvent() = 0;
/**
* Asks the RollupListener if it should rollup on mouse activate, eg. X-Mouse
*/
virtual bool ShouldRollupOnMouseActivate() = 0;
/*
* Retrieve the widgets for open menus and store them in the array
* aWidgetChain. The number of menus of the same type should be returned,
* for example, if a context menu is open, return only the number of menus
* that are part of the context menu chain. This allows closing up only
* those menus in different situations. The returned value should be exactly
* the same number of widgets added to aWidgetChain.
*/
virtual PRUint32 GetSubmenuWidgetChain(nsTArray<nsIWidget*> *aWidgetChain) = 0;
};
#endif /* __nsIRollupListener_h__ */