mirror of
https://github.com/clementine-player/Clementine
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96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
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/*
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Copyright (c) 2005-2009 by Jakob Schroeter <js@camaya.net>
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This file is part of the gloox library. http://camaya.net/gloox
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This software is distributed under a license. The full license
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agreement can be found in the file LICENSE in this distribution.
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This software may not be copied, modified, sold or distributed
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other than expressed in the named license agreement.
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This software is distributed without any warranty.
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*/
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#ifndef MESSAGEVENTFILTER_H__
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#define MESSAGEVENTFILTER_H__
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#include "messagefilter.h"
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#include "gloox.h"
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namespace gloox
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{
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class Tag;
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class Message;
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class MessageEventHandler;
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class MessageSession;
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/**
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* @brief This class adds Message Event (XEP-0022) support to a MessageSession.
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*
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* This implementation of Message Events is fully transparent to the user of the class.
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* If the remote entity does not request message events, MessageEventFilter will not send
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* any, even if the user requests it. (This is required by the protocol specification.)
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*
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* @author Jakob Schroeter <js@camaya.net>
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* @since 0.8
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*/
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class GLOOX_API MessageEventFilter : public MessageFilter
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{
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public:
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/**
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* Contstructs a new Message Event filter for a MessageSession.
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* @param parent The MessageSession to decorate.
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*/
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MessageEventFilter( MessageSession* parent );
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/**
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* Virtual destructor.
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*/
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virtual ~MessageEventFilter();
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/**
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* Use this function to raise an event as defined in XEP-0022.
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* @note The Spec states that Message Events shall not be sent to an entity
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* which did not request them. Reasonable effort is taken in this function to
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* avoid spurious event sending. You should be safe to call this even if Message
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* Events were not requested by the remote entity. However,
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* calling raiseMessageEvent( MESSAGE_EVENT_COMPOSING ) for every keystroke still is
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* discouraged. ;)
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* @param event The event to raise.
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*/
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void raiseMessageEvent( MessageEventType event );
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/**
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* The MessageEventHandler registered here will receive Message Events according
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* to XEP-0022.
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* @param meh The MessageEventHandler to register.
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*/
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void registerMessageEventHandler( MessageEventHandler* meh );
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/**
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* This function clears the internal pointer to the MessageEventHandler.
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* Message Events will not be delivered anymore after calling this function until another
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* MessageEventHandler is registered.
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*/
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void removeMessageEventHandler();
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// reimplemented from MessageFilter
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virtual void decorate( Message& msg );
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// reimplemented from MessageFilter
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virtual void filter( Message& msg );
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private:
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MessageEventHandler* m_messageEventHandler;
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std::string m_lastID;
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int m_requestedEvents;
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MessageEventType m_lastSent;
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bool m_disable;
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};
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}
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#endif // MESSAGEVENTFILTER_H__
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