/** 
 * @file llmodaldialog.h
 * @brief LLModalDialog base class
 *
 * $LicenseInfo:firstyear=2002&license=viewergpl$
 * 
 * Copyright (c) 2002-2009, Linden Research, Inc.
 * 
 * Second Life Viewer Source Code
 * The source code in this file ("Source Code") is provided by Linden Lab
 * to you under the terms of the GNU General Public License, version 2.0
 * ("GPL"), unless you have obtained a separate licensing agreement
 * ("Other License"), formally executed by you and Linden Lab.  Terms of
 * the GPL can be found in doc/GPL-license.txt in this distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
 * 
 * There are special exceptions to the terms and conditions of the GPL as
 * it is applied to this Source Code. View the full text of the exception
 * in the file doc/FLOSS-exception.txt in this software distribution, or
 * online at
 * http://secondlifegrid.net/programs/open_source/licensing/flossexception
 * 
 * By copying, modifying or distributing this software, you acknowledge
 * that you have read and understood your obligations described above,
 * and agree to abide by those obligations.
 * 
 * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
 * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
 * COMPLETENESS OR PERFORMANCE.
 * $/LicenseInfo$
 */

#ifndef LL_LLMODALDIALOG_H
#define LL_LLMODALDIALOG_H

#include "llfloater.h"
#include "llframetimer.h"

class LLModalDialog;

// By default, a ModalDialog is modal, i.e. no other window can have focus
// However, for the sake of code reuse and simplicity, if mModal == false,
// the dialog behaves like a normal floater
// https://wiki.lindenlab.com/mediawiki/index.php?title=LLModalDialog&oldid=81385
class LLModalDialog : public LLFloater
{
public:
	LLModalDialog( const LLSD& key, BOOL modal = true );
	/*virtual*/ ~LLModalDialog();
	
	/*virtual*/ BOOL 	postBuild();
	
	/*virtual*/ void	openFloater(const LLSD& key = LLSD());
	/*virtual*/ void	onOpen(const LLSD& key);
	
	/*virtual*/ void 	reshape(S32 width, S32 height, BOOL called_from_parent = TRUE);
	
	/*virtual*/ BOOL	handleMouseDown(S32 x, S32 y, MASK mask);
	/*virtual*/ BOOL	handleMouseUp(S32 x, S32 y, MASK mask);
	/*virtual*/ BOOL	handleHover(S32 x, S32 y, MASK mask);
	/*virtual*/ BOOL	handleScrollWheel(S32 x, S32 y, S32 clicks);
	/*virtual*/ BOOL	handleDoubleClick(S32 x, S32 y, MASK mask);
	/*virtual*/ BOOL	handleRightMouseDown(S32 x, S32 y, MASK mask);
	/*virtual*/ BOOL	handleKeyHere(KEY key, MASK mask );

	/*virtual*/ void	setVisible(BOOL visible);
	/*virtual*/ void	draw();

	BOOL 			isModal() const { return mModal; }
	void			stopModal();

	static void		onAppFocusLost();
	static void		onAppFocusGained();

	static S32		activeCount() { return sModalStack.size(); }
	
protected:
	void			centerOnScreen();

private:
	
	LLFrameTimer 	mVisibleTime;
	const BOOL		mModal;

	static std::list<LLModalDialog*> sModalStack;  // Top of stack is currently being displayed
};

#endif  // LL_LLMODALDIALOG_H