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/** 
 * @file llmodaldialog.h
 * @brief LLModalDialog base class
 *
 * $LicenseInfo:firstyear=2002&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#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(); }
	static void		shutdownModals();

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