author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 18 Jan 2010 20:10:36 +0200 | |
changeset 2 | 08c6ee43b396 |
permissions | -rw-r--r-- |
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/* |
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* =========================================================================== |
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* Name : hgfswengine.h |
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* Part of : Huriganes / Fast Swap Server |
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* Description : Task monitor engine |
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* Version : %version: sa1spcx1#22 % |
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* |
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* Copyright © 2008 Nokia Corporation. |
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* This material, including documentation and any related |
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* computer programs, is protected by copyright controlled by |
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* Nokia Corporation. All rights are reserved. Copying, |
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* including reproducing, storing, adapting or translating, any |
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* or all of this material requires the prior written consent of |
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* Nokia Corporation. This material also contains confidential |
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* information which may not be disclosed to others without the |
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* prior written consent of Nokia Corporation. |
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* =========================================================================== |
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*/ |
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#ifndef __HGFSWENGINE_H |
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#define __HGFSWENGINE_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 "hgpreviewobserver.h" |
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#include "hgfswentry.h" |
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#include "hgfswobservers.h" |
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class CHgFsAlwaysShownAppList; |
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class CHgFsHiddenAppList; |
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class CHgFsWidgetList; |
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class MHgFswEngineObserver; |
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class CHgFswIconCache; |
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class CHgFastSwapPreviewProvider; |
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class CApaWindowGroupName; |
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//class CHgContextUtility; |
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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( CHgFswEngine ) : public CActive, |
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public MHgFswTaskListObserver, |
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public MHgFswResourceObserver, |
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public MHgFsHiddenAppListObserver, |
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public MHgFastSwapPreviewObserver |
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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 CHgFswEngine* NewL( MHgFswEngineObserver& aObserver ); |
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/** |
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* @copydoc NewL |
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*/ |
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IMPORT_C static CHgFswEngine* NewLC( MHgFswEngineObserver& aObserver ); |
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/** |
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* Destructor. |
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*/ |
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~CHgFswEngine(); |
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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 RHgFswArray& 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 CHgFswClient::THgFswFgAppType |
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*/ |
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IMPORT_C TUid ForegroundAppUidL( TInt aType ); |
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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 MHgFswTaskListObserver |
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void UpdateTaskList(); |
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// from MHgFswResourceObserver |
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void HandleResourceChange( TInt aType ); |
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// from MHgFsHiddenAppListObserver |
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void HiddenAppListUpdated(); |
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// from MHgFastSwapPreviewObserver |
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void HandleFswPpApplicationChange( TInt aWgId, TInt aFbsHandle ); |
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void HandleFswPpApplicationUnregistered( TInt aWgId ); |
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private: |
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/** |
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* Constructor. |
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*/ |
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CHgFswEngine( MHgFswEngineObserver& 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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/** |
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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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/** |
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* Called from CollectTasksL for each entry in the task list. |
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* @param aWgId window group id |
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* @param aAppUid application uid |
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* @param aWgName window group name or NULL |
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* @param aNewList list to add to |
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* @param aIsWidget true if the entry corresponds to a web widget |
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* @return TBool ETrue if it was really a new entry in the list |
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*/ |
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TBool AddEntryL( TInt aWgId, const TUid& aAppUid, |
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CApaWindowGroupName* aWgName, RHgFswArray& aNewList, |
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TBool aIsWidget ); |
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|
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/** |
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* Checks if there is an entry for same app in the content list. |
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* If yes then it takes some of the data for the entry that |
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* will correspond to the same app in the refreshed content list. |
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* @param aEntry new entry in content list |
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* @param aAppUid application uid |
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* @param aChanged ref to change-flag, set to ETrue if it is sure |
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* that the new content list will be different from the previous one |
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* @param aNewList ref to new content list |
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* @return ETrue if app was found |
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*/ |
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TBool CheckIfExistsL( CHgFswEntry& aEntry, |
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const TUid& aAppUid, |
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TBool& aChanged, |
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RHgFswArray& aNewList ); |
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|
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/** |
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* Adds running widgets to the list. |
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* @param aNewList array to add to |
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*/ |
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void CheckWidgetsL( RHgFswArray& aNewList ); |
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|
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/** |
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* Finds out the app uid for the given window group id. |
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* @param aWgId a valid window group id |
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* @return application uid |
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*/ |
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TUid AppUidForWgIdL( TInt aWgId ); |
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|
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/** |
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* Returns the parent's wg id or KErrNotFound. |
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* @param aWgId a valid window group id |
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* @return parent wg id or KErrNotFound if there is no parent |
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*/ |
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TInt FindParentWgId( TInt aWgId ); |
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|
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/** |
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* Finds out the application name. |
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* @param aWindowName window group name or NULL |
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* @param aAppUId application uid |
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* @param aWgId window group id |
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* @return application name, ownership transferred to caller |
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*/ |
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HBufC* FindAppNameLC( CApaWindowGroupName* aWindowName, |
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const TUid& aAppUid, TInt aWgId ); |
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|
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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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* Checks if the app to which the screenshot belongs is in the task list |
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* and updates the entry when found. Also triggers change notification |
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* to observer when data is modified. |
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* @param aWgIdForScreenshot wgid for the screenshot |
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* @param aBitmapHandle handle for screenshot bitmap |
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*/ |
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void AssignScreenshotHandle( TInt aWgIdForScreenshot, TInt aBitmapHandle ); |
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/** |
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* Returns the bitmap handle for the screenshot belonging to the given app |
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* or 0 if not (yet) found. |
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* @param aWgIdForApp a window group id (from the window group list) |
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* @return bitmap handle or 0 |
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*/ |
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TInt LookupScreenshotHandle( TInt aWgIdForApp ); |
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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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* Helper function to publish something to CFW. |
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* @param aType context type |
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* @param aValue value to publish |
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*/ |
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//void PublishContextL( const TDesC& aType, const TDesC& aValue ); |
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private: // data |
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MHgFswEngineObserver& iObserver; |
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RHgFswArray iData; // current fsw content, i.e. the task list |
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CEikonEnv* iEnv; // not own |
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// always shown app list, own |
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CHgFsAlwaysShownAppList* iAlwaysShownAppList; |
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// hidden app list, own |
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CHgFsHiddenAppList* iHiddenAppList; |
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// web widget list, own |
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CHgFsWidgetList* iWidgetList; |
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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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/** |
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* Hash table storing the screenshots. |
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* Key: window group id for the screenshot |
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* (the one received in ApplicationChange) |
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* Value: CFbsBitmap*, pointers owned |
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*/ |
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RHashMap<TInt, CFbsBitmap*> iScreenshots; |
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|
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// preview provider instance, own |
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CHgFastSwapPreviewProvider* iPreviewProvider; |
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// timer to defer content refresh |
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CPeriodic* iUpdateStarter; |
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// app icon provider/container instance, own |
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CHgFswIconCache* iAppIcons; |
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// true if web widgets are supported by the system |
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TBool iWidgetsSupported; |
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// wgid of widget appui is saved here |
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TInt iWidgetAppUiWgId; |
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// PS property to listen for swi status changes |
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RProperty iSwiProp; |
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// when true CollectTasksL will call GetAllApps etc. |
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// which is slow and need not be done normally, except |
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// during startup and perhaps when new applications are installed |
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TBool iAppDataRefreshNeeded; |
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// window group ids returned by last WindowGroupList call |
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RArray<TInt> iWgIds; |
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// Dirty flag, indicates that iData is not up-to-date because |
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// there were no subscribed clients during a previous possible |
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// change of the task list. |
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TBool iTaskListDirty; |
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// For publishing the foreground app uid to Context Framework |
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//CHgContextUtility* iContextUtility; |
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TAppUidHexString iFgAppUidStr; |
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TUid iFgAppUid; |
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}; |
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#endif |