author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 19 Mar 2010 09:28:59 +0200 | |
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/* |
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* Copyright (c) 2008-2009 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: Class definition that monitors tv window visibility |
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* |
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*/ |
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/** |
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* @internal reviewed 24/08/2007 by D Holland |
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*/ |
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#ifndef __GLXWINVISIBILITYMONITOR_H__ |
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#define __GLXWINVISIBILITYMONITOR_H__ |
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// External Includes |
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#include <e32base.h> // for CBase |
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#include <AknWsEventObserver.h> // for MAknWsEventObserver |
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// Forward Declarations |
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class MGlxWindowVisibilityObserver; |
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/** |
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* Class Description |
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* An Active object derived class is used to monitor the visibility of the |
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* TV out window. |
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* @author Loughlin |
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*/ |
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NONSHARABLE_CLASS(CGlxWindowVisibilityMonitor) : public CBase, |
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public MAknWsEventObserver |
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{ |
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public: |
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/** |
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* Static Symbian 2 stage constructor. |
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*/ |
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static CGlxWindowVisibilityMonitor* NewL( |
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MGlxWindowVisibilityObserver& aVisibilityObserver ); |
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/** |
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* Destructor. |
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*/ |
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~CGlxWindowVisibilityMonitor(); |
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/** |
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* Close. |
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*/ |
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void Close(); |
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private: |
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/** |
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* Standard C++ constructor |
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*/ |
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CGlxWindowVisibilityMonitor( |
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MGlxWindowVisibilityObserver& aVisibilityObserver ); |
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/* |
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* Symbian second stage construction |
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*/ |
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void ConstructL(); |
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public: // class member functions |
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/* |
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* Provides the caller with the current visible state |
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* @return ETrue if the window is visible or false otherwise |
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*/ |
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TBool IsVisible() const; |
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public: // from MAknWsEventObserver |
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void HandleWsEventL( const TWsEvent& aEvent, CCoeControl* aDestination ); |
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private: // class member data |
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// Not ownded: The Akn event monitor |
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CAknWsEventMonitor* iAknEventMonitor; |
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// Not owned: Window visibility observer |
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MGlxWindowVisibilityObserver& iVisibilityObserver; |
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// The visible state |
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TBool iIsVisible; |
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}; |
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#endif // __GLXWINVISIBILITYMONITOR_H__ |