/*+
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* Copyright (c) 2002-2005 Nokia Corporation and/or its subsidiary(-ies). +
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* All rights reserved.+
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* This component and the accompanying materials are made available+
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* under the terms of "Eclipse Public License v1.0"+
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* which accompanies this distribution, and is available+
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".+
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*+
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* Initial Contributors:+
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* Nokia Corporation - initial contribution.+
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*+
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* Contributors:+
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*+
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* Description:  Invitation handling interface for UI+
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*+
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*/+
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+
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#ifndef MCAINVITEOBSERVER_H+
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#define MCAINVITEOBSERVER_H+
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+
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// INCLUDES+
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#include "MCAInvitation.h"+
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+
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#include <e32std.h>+
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+
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// CLASS DECLARATION+
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+
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/**+
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*  Invitation handling interface for UI. Receiving of invites is serialized+
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*  in engine, so client will receive only one invite per time through this+
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*  interface. If engine receives several invites, it will cache those invites+
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*  and call appropriate methods from this interface after client has returned+
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*  control from HandleInvitation.+
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*+
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*+
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*  @lib CAEngine.lib+
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*  @since 1.2+
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*/+
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class MCAInviteObserver+
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    {+
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    public:+
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        enum TInviteEventType+
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            {+
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            ENewInvite,+
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            EInviteExpired,+
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            EInviteCancel,+
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            EInviteRead+
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            };+
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+
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        /**+
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         * Gets called when invite event occurs.+
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         * @param aEvent Type of event.+
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         * @param aInvitation specifies the invitation message.+
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         */+
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        virtual void HandleInvitationEventL( TInviteEventType aEvent,+
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                                             const MCAInvitation* aInvitation ) = 0;+
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+
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        /**+
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         * Gets called when we received response to our invitation+
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         * @since 2.1+
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         * @param aAcceptance Accepted or rejected+
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         * @param aUserId User Id of the response sender+
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         * @param aGroupName group name+
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         * @param aResponse response text+
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         */+
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        virtual void HandleInvitationResponse( TBool aAcceptance,+
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                                               const TDesC& aUserId,+
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                                               const TDesC& aGroupName,+
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                                               const TDesC& aResponse ) = 0;+
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    protected:+
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+
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        /**+
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        * Destructor.+
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        */+
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        virtual ~MCAInviteObserver() {};+
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    };+
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+
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#endif      // MCAINVITEOBSERVER_H+
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+
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// End of File+
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