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/*
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* Copyright (c) 2008 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: Task monitor engine
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*
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*/
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#ifndef TSFSWENGINE_H
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#define TSFSWENGINE_H
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#include <e32base.h>
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#include <e32cmn.h>
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#include <s32strm.h>
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#include <fbs.h>
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#include <eikenv.h>
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#include <w32std.h>
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#include <e32hashtab.h>
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#include <apgcli.h>
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#include <e32property.h>
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#include "tspreviewobserver.h"
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#include "tsfswentry.h"
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#include "tsfswobservers.h"
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class MTsFswEngineObserver;
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class CTsFastSwapPreviewProvider;
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class CApaWindowGroupName;
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class CBitmapRotator;
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class CTsRotationTask;
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class CTSCpsNotifier;
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class CTsFswDataList;
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// descriptor big enough to store hex repr of 32-bit integer plus 0x prefix
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typedef TBuf<10> TAppUidHexString;
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/**
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* Engine for fast swap server.
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* Performs task monitoring, notifications about wg changes are
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* received from the appui.
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*/
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NONSHARABLE_CLASS( CTsFswEngine ) : public CActive,
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public MTsFswTaskListObserver,
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public MTsFswResourceObserver,
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public MTsFsHiddenAppListObserver,
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public MTsFastSwapPreviewObserver
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{
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public:
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/**
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* Creates a new instance.
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* @param aObserver ref to observer
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*/
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IMPORT_C static CTsFswEngine* NewL( MTsFswEngineObserver& aObserver );
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/**
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* @copydoc NewL
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*/
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IMPORT_C static CTsFswEngine* NewLC( MTsFswEngineObserver& aObserver );
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/**
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* Destructor.
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*/
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~CTsFswEngine();
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/**
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* Returns a reference to the current content.
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* Also performs sanity checks, e.g. associates application icons
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* when no screenshot has been received.
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* @return ref to content array
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*/
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IMPORT_C const RTsFswArray& FswDataL();
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/**
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* Tries to close the given app.
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* @param aWgId value given by WgId() for an entry in iData
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*/
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IMPORT_C void CloseAppL( TInt aWgId );
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/**
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* Brings the given app to foreground.
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* @param aWgId value given by WgId() for an entry in iData
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*/
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IMPORT_C void SwitchToAppL( TInt aWgId );
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/**
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* Returns the uid of the foreground app or KNullUid.
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* Will never return hidden apps, only those which can
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* also be seen in the array returned by FswDataL.
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*
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* In case of embedded apps the behaviour is controlled
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* by aType: it will return either the uid of the embedded
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* application or the container app.
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*
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* @param aType @see CTsFswClient::TTsFswFgAppType
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*/
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IMPORT_C TUid ForegroundAppUidL( TInt aType );
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public:
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/**
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* Callback for rotation completion. Takes ownership of a given
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* bitmap.
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*/
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void RotationComplete( TInt aWgId,
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CFbsBitmap* aBitmap,
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CTsRotationTask* aCompletedTask,
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TInt aError );
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/**
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* Called by CPS publisher when changes occours on widgets' CPS data.
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* Copies screenshot with use of delivered bitmap handle.
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* Moves last changed widget with entry into start position.
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*/
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void HandleWidgetUpdateL( TInt aWidgetId, TInt aBitmapHandle );
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private:
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// from CActive
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void RunL();
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TInt RunError( TInt aError );
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void DoCancel();
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// from MTsFswTaskListObserver
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void UpdateTaskList();
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// from MTsFswResourceObserver
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void HandleResourceChange( TInt aType );
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// from MTsFsHiddenAppListObserver
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void HiddenAppListUpdated();
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// from MTsFastSwapPreviewObserver
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void HandleFswPpApplicationChange( TInt aWgId, TInt aFbsHandle );
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void HandleFswPpApplicationUnregistered( TInt aWgId );
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void HandleFswPpApplicationBitmapRotation( TInt aWgId, TBool aClockwise );
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void RotateL( CFbsBitmap& aBitmap, TInt aWgId, TBool aClockwise );
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private:
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/**
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* Constructor.
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*/
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CTsFswEngine( MTsFswEngineObserver& aObserver );
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/**
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* Performs 2nd phase construction.
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*/
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void ConstructL();
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/**
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* Gets the window group list and reconstructs the fsw content.
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* @return TBool ETrue if the list has been modified
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*/
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TBool CollectTasksL();
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/**
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* Makes a copy of the bitmap with the given handle.
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* @param aFbsHandle bitmap handle
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* @param aKeepAspectRatio if true then aspect ratio is kept
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* @return CFbsBitmap* the copy, ownership transferred to caller
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*/
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CFbsBitmap* CopyBitmapL( TInt aFbsHandle, TBool aKeepAspectRatio );
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/**
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* Callback for the iUpdateStarter timer.
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* Calls CollectTasksL and notifies the observer if the task list
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* has really been modified.
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*/
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static TInt UpdateStarterCallback( TAny* aParam );
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/**
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* Brings the given web widget to foreground.
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* @param aWidgetIndex index in the list of running widgets
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*/
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void SwitchToWidgetL( TInt aWidgetIndex );
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/**
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* Configues the preview provider with current screen size.
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*/
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void SetPreviewParams();
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/**
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* Registers and unregisters window groups to iPreviewProvider
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* if the window group list has been changed.
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*/
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void UpdatePreviewContent();
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/**
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* Gets and publishes the foreground app uid to CFW.
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*/
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void PublishFgAppUidL();
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/**
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* Close running widget
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* @param aOffset - widget info offset
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*/
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void CloseWidgetL( TInt aOffset );
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/**
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* Removes screenshot bitmap from contained iDataList
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*/
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void RemoveScreenshot( TInt aWgId );
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/**
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* Add or overwrite screenshot datamap into iDataList
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* @return ETrue if content was changed
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*/
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TBool StoreScreenshot( TInt aWgId, CFbsBitmap* aBmp );
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private:
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// data
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MTsFswEngineObserver& iObserver;
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CEikonEnv* iEnv; // not own
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// window server session
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RWsSession iWsSession;
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// apparc session
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RApaLsSession iAppArcSession;
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// preview provider instance, own
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CTsFastSwapPreviewProvider* iPreviewProvider;
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// timer to defer content refresh
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CPeriodic* iUpdateStarter;
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// true if web widgets are supported by the system
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TBool iWidgetsSupported;
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// PS property to listen for swi status changes
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RProperty iSwiProp;
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// window group ids returned by last WindowGroupList call
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RArray<TInt> iWgIds;
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TUid iFgAppUid;
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// For rotating bitmaps
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RPointerArray<CTsRotationTask> iRotaTasks;
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CTsFswDataList* iDataList;//own
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//Used to observ wigets' actions on CPS service
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CTSCpsNotifier* iCpsWidgetPublisher;//owned
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};
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/**
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* Listener for rotation complete event
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*/
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NONSHARABLE_CLASS( CTsRotationTask ) : public CActive
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{
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public:
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CTsRotationTask( CTsFswEngine& aEngine );
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~CTsRotationTask();
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void StartLD( TInt aWgId, CFbsBitmap* aBitmapHandle, TBool aClockwise );
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private:
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void RunL();
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void DoCancel();
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private:
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// Data
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CTsFswEngine& iEngine;
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TInt iWgId;
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CFbsBitmap* iBitmap; // owned for the duration of transformation
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CBitmapRotator* iRotator; // owned
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};
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#endif
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