/**

 * vim: set ts=4 sw=4 tw=99 noet :

 * =============================================================================

 * SourceMod

 * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.

 * =============================================================================

 *

 * This program is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, version 3.0, as published by the

 * Free Software Foundation.

 * 

 * This program 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 General Public License for more

 * details.

 *

 * You should have received a copy of the GNU General Public License along with

 * this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 * As a special exception, AlliedModders LLC gives you permission to link the

 * code of this program (as well as its derivative works) to "Half-Life 2," the

 * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

 * by the Valve Corporation.  You must obey the GNU General Public License in

 * all respects for all other code used.  Additionally, AlliedModders LLC grants

 * this exception to all derivative works.  AlliedModders LLC defines further

 * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

 * or <http://www.sourcemod.net/license.php>.

 *

 * Version: $Id$

 */

#ifndef _INCLUDE_MENUSTYLE_BASE_H

#define _INCLUDE_MENUSTYLE_BASE_H

#include <IMenuManager.h>

#include <IPlayerHelpers.h>

#include <am-string.h>

#include <am-vector.h>

#include "sm_fastlink.h"

using namespace SourceMod;

class CItem

{

public:

	CItem()

	{

		style = 0;

		access = 0;

	}

	CItem(ke::Moveable<CItem> other)

	: info(ke::Move(other->info)),

	  display(ke::Move(other->display))

	{

		style = other->style;

		access = other->access;

	}

	CItem & operator =(ke::Moveable<CItem> other)

	{

		info = ke::Move(other->info);

		display = ke::Move(other->display);

		style = other->style;

		access = other->access;

		return *this;

	}

public:

	ke::AString info;

	ke::AutoPtr<ke::AString> display;

	unsigned int style;

	unsigned int access;

private:

	CItem(const CItem &other) KE_DELETE;

	CItem &operator =(const CItem &other) KE_DELETE;

};

class CBaseMenuPlayer

{

public:

	CBaseMenuPlayer() : bInMenu(false), bAutoIgnore(false), bInExternMenu(false)

	{

	}

	menu_states_t states;

	bool bInMenu;

	bool bAutoIgnore;

	float menuStartTime;

	unsigned int menuHoldTime;

	bool bInExternMenu;

};

class CBaseMenu;

class BaseMenuStyle : 

	public IMenuStyle,

	public IClientListener

{

public:

	BaseMenuStyle();

public: //IMenuStyle

	bool CancelClientMenu(int client, bool autoIgnore/* =false */);

	MenuSource GetClientMenu(int client, void **object);

	Handle_t GetHandle();

public: //IClientListener

	void OnClientDisconnected(int client);

public: //what derived must implement

	virtual CBaseMenuPlayer *GetMenuPlayer(int client) =0;

	virtual void SendDisplay(int client, IMenuPanel *display) =0;

public: //what derived may implement 

	virtual bool DoClientMenu(int client, 

		CBaseMenu *menu, 

		unsigned int first_item,

		IMenuHandler *mh, 

		unsigned int time);

	virtual bool DoClientMenu(int client, IMenuPanel *menu, IMenuHandler *mh, unsigned int time);

	virtual void AddClientToWatch(int client);

	virtual void RemoveClientFromWatch(int client);

	virtual void ProcessWatchList();

public: //helpers

	void CancelMenu(CBaseMenu *menu);

	void ClientPressedKey(int client, unsigned int key_press);

protected:

	void _CancelClientMenu(int client, MenuCancelReason reason, bool bAutoIgnore=false);

	bool RedoClientMenu(int client, ItemOrder order);

protected:

	FastLink<int> m_WatchList;

	Handle_t m_hHandle;

};

class CBaseMenu : public IBaseMenu

{

public:

	CBaseMenu(IMenuHandler *pHandler, IMenuStyle *pStyle, IdentityToken_t *pOwner);

	virtual ~CBaseMenu();

public:

	virtual bool AppendItem(const char *info, const ItemDrawInfo &draw);

	virtual bool InsertItem(unsigned int position, const char *info, const ItemDrawInfo &draw);

	virtual bool RemoveItem(unsigned int position);

	virtual void RemoveAllItems();

	virtual const char *GetItemInfo(unsigned int position, ItemDrawInfo *draw=NULL);

	virtual unsigned int GetItemCount();

	virtual bool SetPagination(unsigned int itemsPerPage);

	virtual unsigned int GetPagination();

	virtual IMenuStyle *GetDrawStyle();

	virtual void SetDefaultTitle(const char *message);

	virtual const char *GetDefaultTitle();

	virtual void Cancel();

	virtual void Destroy(bool releaseHandle);

	virtual void Cancel_Finally() =0;

	virtual Handle_t GetHandle();

	virtual unsigned int GetMenuOptionFlags();

	virtual void SetMenuOptionFlags(unsigned int flags);

	virtual IMenuHandler *GetHandler();

	unsigned int GetBaseMemUsage();

private:

	void InternalDelete();

protected:

	ke::AString m_Title;

	IMenuStyle *m_pStyle;

	unsigned int m_Pagination;

	ke::Vector<CItem> m_items;

	bool m_bShouldDelete;

	bool m_bCancelling;

	IdentityToken_t *m_pOwner;

	bool m_bDeleting;

	bool m_bWillFreeHandle;

	Handle_t m_hHandle;

	IMenuHandler *m_pHandler;

	unsigned int m_nFlags;

};

#endif //_INCLUDE_MENUSTYLE_BASE_H