// Copyright (c) 1999-2009 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:+
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//+
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+
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#ifndef __VWSDEF_partner_H__+
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#define __VWSDEF_partner_H__+
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+
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#ifndef __VWSDEF_H__+
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#include <vwsdef.h>+
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#endif+
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+
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+
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#include <e32std.h>+
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+
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//class defined+
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class TVwsViewEvent;+
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+
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//class referenced+
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class TVwsViewId;+
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+
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/**+
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@internalTechnology+
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@released+
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*/+
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#define KNullViewId TVwsViewId(KNullUid,KNullUid)+
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+
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/**+
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@internalTechnology+
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@released+
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*/+
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const TInt KErrViewWrongMode=1; // !!! Wrong error code - should be -ve & unique+
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+
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+
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/**+
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@publishedPartner+
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@released+
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*/+
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#define KUidCustomCrossCheckValue 0x80282748+
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+
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/**+
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@publishedPartner+
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@released+
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*/+
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const TUid KUidCustomCrossCheck={KUidCustomCrossCheckValue};+
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+
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class TVwsViewEvent+
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/**+
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The TVwsViewEvent class encapsulates the attributes of a view server event.+
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These are:+
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- The event type+
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- The view ids of the two views associated with the event+
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- The attributes of any message which can go with the event.+
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+
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@publishedPartner+
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@released +
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*/+
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	{+
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public:+
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	enum TVwsViewEventType+
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		{+
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		EVwsActivateView,+
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		EVwsDeactivateView,+
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		EVwsScreenDeviceChanged,+
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		EVwsDeactivationNotification,+
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		EVwsActivationNotification,+
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		EVwsDeactivateViewDifferentInstance+
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		};+
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public:+
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	inline TVwsViewEvent();+
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	inline TVwsViewEvent(TVwsViewEventType aEventType);+
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	inline TVwsViewEvent(TVwsViewEventType aEventType,const TVwsViewId& aViewOneId);+
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	inline TVwsViewEvent(TVwsViewEventType aEventType,const TVwsViewId& aViewOneId,const TVwsViewId& aViewTwoId);+
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	inline TVwsViewEvent(TVwsViewEventType aEventType,const TVwsViewId& aViewOneId,const TVwsViewId& aViewTwoId,TUid aCustomMessageId,TInt aCustomMessageLength);+
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public:+
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	/**+
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	The event type.+
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	*/+
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	TVwsViewEventType iEventType;+
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	/**+
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	The first view id associated with the event. This has a different meaning for each of the event types:+
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	- For ActivateView events, it is the view to activate+
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	- For DeactivateView events, it is the view to deactivate+
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	- For ScreenDeviceChange events, it is the id of the currently active view+
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	- For ActivationNotification events, it is the id of the activated view+
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	- For DeactivationNotification events, it is the id of the deactivated view+
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	*/+
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	TVwsViewId iViewOneId;+
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	/**+
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	The second view id associated with the event. This has a different meaning for each of the event types:+
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	- For ActivateView events, it is the view that will be deactivated+
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	- For DeactivateView events, it is the view that has been activated+
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	- For ScreenDeviceChange events, it is unused+
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	- For ActivationNotification events, it is the view that will be deactivated+
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	- For DeactivationNotification events, it is the id of the view that has been activated+
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	*/+
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	TVwsViewId iViewTwoId;+
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	/**+
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	The type of message being passed in the custom message buffer+
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	*/+
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	TUid iCustomMessageId;+
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	/**+
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	The length of the custom message being held by the server.+
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	To retrieve the message itself from the server, a buffer of this length must be allocated+
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	*/+
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	TInt iCustomMessageLength;+
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	};+
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+
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inline TVwsViewEvent::TVwsViewEvent() {}+
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+
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inline TVwsViewEvent::TVwsViewEvent(TVwsViewEventType aEventType)+
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	: iEventType(aEventType),iViewOneId(),iViewTwoId(),iCustomMessageId(KNullUid),iCustomMessageLength(0) {}+
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+
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inline TVwsViewEvent::TVwsViewEvent(TVwsViewEventType aEventType,const TVwsViewId& aViewOneId)+
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	: iEventType(aEventType),iViewOneId(aViewOneId),iViewTwoId(),iCustomMessageId(KNullUid),iCustomMessageLength(0) {}+
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+
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inline TVwsViewEvent::TVwsViewEvent(TVwsViewEventType aEventType,const TVwsViewId& aViewOneId,const TVwsViewId& aViewTwoId)+
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	: iEventType(aEventType),iViewOneId(aViewOneId),iViewTwoId(aViewTwoId),iCustomMessageId(KNullUid),iCustomMessageLength(0) {}+
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+
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inline TVwsViewEvent::TVwsViewEvent(TVwsViewEventType aEventType,const TVwsViewId& aViewOneId,const TVwsViewId& aViewTwoId,TUid aCustomMessageId,TInt aCustomMessageLength)+
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	: iEventType(aEventType),iViewOneId(aViewOneId),iViewTwoId(aViewTwoId),iCustomMessageId(aCustomMessageId),iCustomMessageLength(aCustomMessageLength) {}+
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+
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+
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#endif+
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