/*+
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* Copyright (c) 2005-2006 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:  Device status content publisher+
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*+
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*/+
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#ifndef M_AIDEVICESTATUSCONTENTOBSERVER_H+
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#define M_AIDEVICESTATUSCONTENTOBSERVER_H+
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class MAiDeviceStatusPublisher;+
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+
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/**+
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 *  @ingroup group_devicestatusplugin+
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 *+
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 *  Device status content publisher.+
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 *+
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 *  All of the publishers uses this interface to publish content.+
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 *+
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 *  @since S60 3.2+
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 */+
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class MAiDeviceStatusContentObserver+
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    {+
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protected:+
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    /**+
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     * Virtual destructor.+
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     *+
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     * This cannot be used to destroy observer object.+
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     */+
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     virtual ~MAiDeviceStatusContentObserver() {};+
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+
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public:+
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+
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    /**+
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     * Publish unicode text.+
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     *+
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     * @since S60 3.2+
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     * @param aPublisher is reference to publisher which is publishing.+
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     * @param aContent is content id.+
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     * @param aText is published text.+
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     * @param aPriority is priority of the content.+
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     * @return KErrNone if publish is successful, otherwise system wide error code.+
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     */+
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    virtual TInt Publish( MAiDeviceStatusPublisher& aPublisher, TInt aContent,+
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                          const TDesC16& aText, TInt aPriority ) = 0;+
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+
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    /**+
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     * Publish data buffer.+
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     *+
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     * @since S60 3.2+
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     * @param aPublisher is reference to publisher which is publishing.+
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     * @param aContent is content id.+
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     * @param aBuf is data buffer.+
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     * @param aPriority is priority of the content.+
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     * @return KErrNone if publish is successful, otherwise system wide error code.+
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     */+
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    virtual TInt Publish( MAiDeviceStatusPublisher& aPublisher, TInt aContent,+
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                          const TDesC8& aBuf, TInt aPriority ) = 0;+
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+
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    /**+
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     * Publish resource.+
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     *+
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     * @since S60 3.2+
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     * @param aPublisher is reference to publisher which is publishing.+
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     * @param aContent is content id.+
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     * @param aResource is resource id.+
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     * @param aPriority is priority of the content.+
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     * @return KErrNone if publish is successful, otherwise system wide error code.+
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     */+
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    virtual TInt Publish( MAiDeviceStatusPublisher& aPublisher, TInt aContent,+
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                          TInt aResource, TInt aPriority ) = 0;+
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+
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    /**+
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     * Clean content.+
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     *+
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     * @since S60 3.2+
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     * @param aPublisher is reference to publisher which is publishing.+
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     * @param aContent is content id.+
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     * @param aPriority is priority of the content.+
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     * @return KErrNone if publish is successful, otherwise system wide error code.+
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     */+
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    virtual TInt Clean( MAiDeviceStatusPublisher& aPublisher, TInt aContent, TInt aPriority ) = 0;+
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+
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    };+
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#endif // M_AIDEVICESTATUSCONTENTOBSERVER_H+
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