/** 
 * @file llnearbychat.h
 * @brief nearby chat history scrolling panel implementation
 *
 * $LicenseInfo:firstyear=2004&license=viewerlgpl$
 * 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_LLNEARBYCHAT_H_
#define LL_LLNEARBYCHAT_H_

#include "llscrollbar.h"
#include "llviewerchat.h"
#include "llfloater.h"

class LLResizeBar;
class LLChatHistory;

class LLNearbyChat
: public LLPanel
{
public:
	LLNearbyChat(const Params& p = LLPanel::getDefaultParams());

	BOOL	postBuild			();

	/** @param archive true - to save a message to the chat history log */
	void	addMessage			(const LLChat& message,bool archive = true, const LLSD &args = LLSD());	
	void	onNearbyChatContextMenuItemClicked(const LLSD& userdata);
	bool	onNearbyChatCheckContextMenuItem(const LLSD& userdata);

	virtual BOOL	handleMouseDown(S32 x, S32 y, MASK mask);
	virtual void	draw();

	// focus overrides
	/*virtual*/ void	onFocusLost();
	/*virtual*/ void	onFocusReceived();
	
	/*virtual*/ void	setVisible(BOOL visible);
	
	virtual void updateChatHistoryStyle();

	static void processChatHistoryStyleUpdate();

	void loadHistory();

	static LLNearbyChat* getInstance();
	void removeScreenChat();

private:

	void	getAllowedRect		(LLRect& rect);
	// prepare chat's params and out one message to chatHistory
	void appendMessage(const LLChat& chat, const LLSD &args = 0);
	void	onNearbySpeakers	();


private:
	LLHandle<LLView>	mPopupMenuHandle;
	LLChatHistory*		mChatHistory;

	std::vector<LLChat> mMessageArchive;
};

#endif