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226 lines
8 KiB
C++
226 lines
8 KiB
C++
// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef DYN_CHAN_H
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#define DYN_CHAN_H
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#include "nel/misc/entity_id.h"
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#include "nel/misc/historic.h"
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#include "base_types.h"
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// forward declarations
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class CDynChatClient;
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class CDynChatChan;
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// identifier of a dynchat channel
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//typedef uint32 TChanID;
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typedef NLMISC::CEntityId TChanID;
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// tag for invalid channel
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const TChanID DYN_CHAT_INVALID_CHAN = NLMISC::CEntityId::Unknown;
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/// Message payload for player input forward to channel service owner
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struct TPlayerInputForward
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{
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TChanID ChanID;
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TDataSetRow Sender;
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ucstring Content;
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void serial(NLMISC::IStream &f)
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{
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f.serial(ChanID);
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f.serial(Sender);
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f.serial(Content);
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}
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};
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//===================================================================================================================
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/** This class represents an interaction between a client and a channel in a dynamic chat
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* A session is initiated from a CDynChat instance.
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*/
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class CDynChatSession
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{
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NL_INSTANCE_COUNTER_DECL(CDynChatSession);
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public:
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uint32 StringID; // string ID for EGS (to fill client DB)
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bool WriteRight; // in read-only mode client can't talk in the channel
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public:
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// Get next session for client
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CDynChatSession *getNextClientSession() { return _NextClientSession; }
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// Get next session for channel
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CDynChatSession *getNextChannelSession() { return _NextChannelSession; }
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// Get the client taking part to this session
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CDynChatClient *getClient() { return _Client; }
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// Get the channel hosting that session
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CDynChatChan *getChan() { return _Channel; }
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private:
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CDynChatClient *_Client;
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CDynChatChan *_Channel;
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CDynChatSession *_NextClientSession;
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CDynChatSession **_PrevClientSession; // Pointer on 'next' field in previous client session, or start of linked list
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CDynChatSession *_NextChannelSession;
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CDynChatSession **_PrevChannelSession; // Pointer on 'next' field in previous channel session, or start of linked list
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// remove the session
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void unlink();
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// ctor
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CDynChatSession(CDynChatClient *client, CDynChatChan *channel);
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~CDynChatSession();
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friend class CDynChat;
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friend class CDynChatClient;
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friend class CDynChatChan;
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static uint _NumSessions;
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};
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//===================================================================================================================
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/** A client in a dyn chat system. Should be created from a CDynChat instance.
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*/
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class CDynChatClient
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{
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public:
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// ctor
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CDynChatClient(const TDataSetRow &client = TDataSetRow());
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~CDynChatClient();
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// Head of linked list of sessions for this channel. List must be followed by calling CDynChatSession::getNextClientSession.
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CDynChatSession *getFirstSession() { return _FirstSession; }
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const TDataSetRow &getID() const { return _ID; }
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// Return session for this client in channel 'chan', or NULL if no such session exists
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CDynChatSession *getSession(TChanID chan) const;
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private:
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CDynChatSession *_FirstSession;
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TDataSetRow _ID;
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friend class CDynChatSession;
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friend class CDynChat;
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};
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//===================================================================================================================
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/** A channel in a dyn chat system. Should be created from a CDynChat instance.
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*/
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class CDynChatChan
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{
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public:
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struct CHistoricEntry
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{
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ucstring String;
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// TDataSetRow Sender;
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ucstring SenderString;
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};
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NLMISC::CHistoric<CHistoricEntry> Historic; // historic of messages for IOS
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uint HistoricSize; // Historic size for EGS
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bool Localized; // for EGS only
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ucstring Title; // gives the title of the channel when it is not translated (e.g Localized == false)
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bool HideBubble; // hide the display of bubble
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public:
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CDynChatChan();
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// CDynChatChan(TChanID id = NLMISC::CEntityId::Unknown, NLNET::TServiceId ownerServiceId, bool noBroadcast, bool forwadInput);
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CDynChatChan(TChanID id, bool noBroadcast, bool forwardInput, bool unified);
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~CDynChatChan();
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// Get ID for that channel
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TChanID getID() const { return _ID; }
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// Head of linked list of sessions for this channel. List must be followed by calling CDynChatSession::getNextChannelSession.
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CDynChatSession *getFirstSession() { return _FirstSession; }
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// Count number of session in that channel (in O(n))
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uint getSessionCount() const;
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bool getDontBroadcastPlayerInputs() { return _DontBroadcastPlayerInputs; }
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bool getForwardPlayerIntputToOwnerService() { return _ForwardPlayerIntputToOwnerService;}
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bool getUnifiedChannel() { return _UnifyChannel;}
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private:
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CDynChatSession *_FirstSession;
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TChanID _ID;
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/// Flag to disable client broadcasting
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bool _DontBroadcastPlayerInputs;
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/// Flag to activate player input forwarding to owner service.
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bool _ForwardPlayerIntputToOwnerService;
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/// Flag to activate unification (domain wide) of this channel
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bool _UnifyChannel;
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friend class CDynChatSession;
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friend class CDynChat;
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};
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//===================================================================================================================
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/** Data structure to store clients / channels / sessions
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* To be used by both IOS & EGS
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*
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* \TODO : Would be good to generalize the pattern used as something like NLMISC::CBinaryRelation<CompoundA, CompoundB, Relation>
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* This would avoid to have fields for one service that aren't used by an other (like the historic...)
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*
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* \author Nicolas Vizerie
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* \author Nevrax France
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* \date 2004
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*/
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class CDynChat
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{
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private:
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typedef std::map<TChanID, CDynChatChan> TChanMap;
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typedef std::map<TDataSetRow, CDynChatClient> TClientMap;
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public:
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// ctor
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CDynChat();
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// dtor
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~CDynChat();
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/** Create a new channel with the given ID. A warning is issued if channel already exists.
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* \return true if creation succeeded
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*/
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bool addChan(TChanID chan, bool noBroadcast, bool forwardInput, bool unify);
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// Remove channel with the given ID. Return true if success
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bool removeChan(TChanID chan);
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// Add a client with the given ID. Return true if success
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bool addClient(const TDataSetRow &client);
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// Remove client from its ID. Return true if success
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bool removeClient(const TDataSetRow &client);
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/** Create a new session in channel 'chan' for the client 'client'. No-op if session already exists
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* \return pointer on created session
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*/
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CDynChatSession *addSession(TChanID chan, const TDataSetRow &client);
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// Stop session in channel 'chan' for the client 'client'.
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bool removeSession(TChanID chan, const TDataSetRow &client);
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// Get channel object from its ID or NULL if not found.
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CDynChatChan *getChan(TChanID chan);
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// Get client object from its ID or NULL if not found.
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CDynChatClient *getClient(const TDataSetRow &client);
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// Get a session or NULL if not found
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CDynChatSession *getSession(TChanID chan, const TDataSetRow &client);
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// Get channels
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typedef std::vector<CDynChatChan *> TChanPtrVector;
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void getChans(TChanPtrVector &channels);
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// Remove all channels
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void removeAllChannels() { _Chans.clear(); }
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private:
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//
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TChanMap _Chans;
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TClientMap _Clients;
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};
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#endif
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