--- a/taskswitcher/contextengine/tsfswserver/engine/inc/tsfswengine.h Thu Mar 18 14:45:17 2010 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,326 +0,0 @@
-/*
-* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
-*
-* Contributors:
-*
-* Description: Task monitor engine
- *
-*/
-
-
-#ifndef TSFSWENGINE_H
-#define TSFSWENGINE_H
-
-#include <e32base.h>
-#include <e32cmn.h>
-#include <s32strm.h>
-#include <fbs.h>
-#include <eikenv.h>
-#include <w32std.h>
-#include <e32hashtab.h>
-#include <apgcli.h>
-#include <e32property.h>
-#include "tspreviewobserver.h"
-#include "tsfswentry.h"
-#include "tsfswobservers.h"
-
-class CTsFsAlwaysShownAppList;
-class CTsFsHiddenAppList;
-class CTsFsWidgetList;
-class MTsFswEngineObserver;
-class CTsFswIconCache;
-class CTsFastSwapPreviewProvider;
-class CApaWindowGroupName;
-
-// descriptor big enough to store hex repr of 32-bit integer plus 0x prefix
-typedef TBuf<10> TAppUidHexString;
-
-/**
- * Engine for fast swap server.
- * Performs task monitoring, notifications about wg changes are
- * received from the appui.
- */
-NONSHARABLE_CLASS( CTsFswEngine ) : public CActive,
- public MTsFswTaskListObserver,
- public MTsFswResourceObserver,
- public MTsFsHiddenAppListObserver,
- public MTsFastSwapPreviewObserver
- {
-public:
- /**
- * Creates a new instance.
- * @param aObserver ref to observer
- */
- IMPORT_C static CTsFswEngine* NewL( MTsFswEngineObserver& aObserver );
-
- /**
- * @copydoc NewL
- */
- IMPORT_C static CTsFswEngine* NewLC( MTsFswEngineObserver& aObserver );
-
- /**
- * Destructor.
- */
- ~CTsFswEngine();
-
- /**
- * Returns a reference to the current content.
- * Also performs sanity checks, e.g. associates application icons
- * when no screenshot has been received.
- * @return ref to content array
- */
- IMPORT_C const RTsFswArray& FswDataL();
-
- /**
- * Tries to close the given app.
- * @param aWgId value given by WgId() for an entry in iData
- */
- IMPORT_C void CloseAppL( TInt aWgId );
-
- /**
- * Brings the given app to foreground.
- * @param aWgId value given by WgId() for an entry in iData
- */
- IMPORT_C void SwitchToAppL( TInt aWgId );
-
- /**
- * Returns the uid of the foreground app or KNullUid.
- * Will never return hidden apps, only those which can
- * also be seen in the array returned by FswDataL.
- *
- * In case of embedded apps the behaviour is controlled
- * by aType: it will return either the uid of the embedded
- * application or the container app.
- *
- * @param aType @see CTsFswClient::TTsFswFgAppType
- */
- IMPORT_C TUid ForegroundAppUidL( TInt aType );
-
-private:
- // from CActive
- void RunL();
- TInt RunError( TInt aError );
- void DoCancel();
-
- // from MTsFswTaskListObserver
- void UpdateTaskList();
-
- // from MTsFswResourceObserver
- void HandleResourceChange( TInt aType );
-
- // from MTsFsHiddenAppListObserver
- void HiddenAppListUpdated();
-
- // from MTsFastSwapPreviewObserver
- void HandleFswPpApplicationChange( TInt aWgId, TInt aFbsHandle );
- void HandleFswPpApplicationUnregistered( TInt aWgId );
-
-private:
- /**
- * Constructor.
- */
- CTsFswEngine( MTsFswEngineObserver& aObserver );
-
- /**
- * Performs 2nd phase construction.
- */
- void ConstructL();
-
- /**
- * Gets the window group list and reconstructs the fsw content.
- * @return TBool ETrue if the list has been modified
- */
- TBool CollectTasksL();
-
- /**
- * Called from CollectTasksL for each entry in the task list.
- * @param aWgId window group id
- * @param aAppUid application uid
- * @param aWgName window group name or NULL
- * @param aNewList list to add to
- * @param aIsWidget true if the entry corresponds to a web widget
- * @return TBool ETrue if it was really a new entry in the list
- */
- TBool AddEntryL( TInt aWgId, const TUid& aAppUid,
- CApaWindowGroupName* aWgName, RTsFswArray& aNewList,
- TBool aIsWidget );
-
- /**
- * Checks if there is an entry for same app in the content list.
- * If yes then it takes some of the data for the entry that
- * will correspond to the same app in the refreshed content list.
- * @param aEntry new entry in content list
- * @param aAppUid application uid
- * @param aChanged ref to change-flag, set to ETrue if it is sure
- * that the new content list will be different from the previous one
- * @param aNewList ref to new content list
- * @return ETrue if app was found
- */
- TBool CheckIfExistsL( CTsFswEntry& aEntry,
- const TUid& aAppUid,
- TBool& aChanged,
- RTsFswArray& aNewList );
-
- /**
- * Adds running widgets to the list.
- * @param aNewList array to add to
- */
- void CheckWidgetsL( RTsFswArray& aNewList );
-
- /**
- * Finds out the app uid for the given window group id.
- * @param aWgId a valid window group id
- * @return application uid
- */
- TUid AppUidForWgIdL( TInt aWgId );
-
- /**
- * Returns the parent's wg id or KErrNotFound.
- * @param aWgId a valid window group id
- * @return parent wg id or KErrNotFound if there is no parent
- */
- TInt FindParentWgId( TInt aWgId );
-
- /**
- * Finds out the application name.
- * @param aWindowName window group name or NULL
- * @param aAppUId application uid
- * @param aWgId window group id
- * @return application name, ownership transferred to caller
- */
- HBufC* FindAppNameLC( CApaWindowGroupName* aWindowName,
- const TUid& aAppUid, TInt aWgId );
-
- /**
- * Makes a copy of the bitmap with the given handle.
- * @param aFbsHandle bitmap handle
- * @param aKeepAspectRatio if true then aspect ratio is kept
- * @return CFbsBitmap* the copy, ownership transferred to caller
- */
- CFbsBitmap* CopyBitmapL( TInt aFbsHandle, TBool aKeepAspectRatio );
-
- /**
- * Checks if the app to which the screenshot belongs is in the task list
- * and updates the entry when found. Also triggers change notification
- * to observer when data is modified.
- * @param aWgIdForScreenshot wgid for the screenshot
- * @param aBitmapHandle handle for screenshot bitmap
- */
- void AssignScreenshotHandle( TInt aWgIdForScreenshot, TInt aBitmapHandle );
-
- /**
- * Returns the bitmap handle for the screenshot belonging to the given app
- * or 0 if not (yet) found.
- * @param aWgIdForApp a window group id (from the window group list)
- * @return bitmap handle or 0
- */
- TInt LookupScreenshotHandle( TInt aWgIdForApp );
-
- /**
- * Callback for the iUpdateStarter timer.
- * Calls CollectTasksL and notifies the observer if the task list
- * has really been modified.
- */
- static TInt UpdateStarterCallback( TAny* aParam );
-
- /**
- * Brings the given web widget to foreground.
- * @param aWidgetIndex index in the list of running widgets
- */
- void SwitchToWidgetL( TInt aWidgetIndex );
-
- /**
- * Configues the preview provider with current screen size.
- */
- void SetPreviewParams();
-
- /**
- * Registers and unregisters window groups to iPreviewProvider
- * if the window group list has been changed.
- */
- void UpdatePreviewContent();
-
- /**
- * Gets and publishes the foreground app uid to CFW.
- */
- void PublishFgAppUidL();
-
- /**
- * Helper function to publish something to CFW.
- * @param aType context type
- * @param aValue value to publish
- */
- //void PublishContextL( const TDesC& aType, const TDesC& aValue );
-
-private: // data
- MTsFswEngineObserver& iObserver;
- RTsFswArray iData; // current fsw content, i.e. the task list
- CEikonEnv* iEnv; // not own
-
- // always shown app list, own
- CTsFsAlwaysShownAppList* iAlwaysShownAppList;
-
- // hidden app list, own
- CTsFsHiddenAppList* iHiddenAppList;
-
- // web widget list, own
- CTsFsWidgetList* iWidgetList;
-
- // window server session
- RWsSession iWsSession;
-
- // apparc session
- RApaLsSession iAppArcSession;
-
- /**
- * Hash table storing the screenshots.
- * Key: window group id for the screenshot
- * (the one received in ApplicationChange)
- * Value: CFbsBitmap*, pointers owned
- */
- RHashMap<TInt, CFbsBitmap*> iScreenshots;
-
- // preview provider instance, own
- CTsFastSwapPreviewProvider* iPreviewProvider;
-
- // timer to defer content refresh
- CPeriodic* iUpdateStarter;
-
- // app icon provider/container instance, own
- CTsFswIconCache* iAppIcons;
-
- // true if web widgets are supported by the system
- TBool iWidgetsSupported;
- // wgid of widget appui is saved here
- TInt iWidgetAppUiWgId;
-
- // PS property to listen for swi status changes
- RProperty iSwiProp;
- // when true CollectTasksL will call GetAllApps etc.
- // which is slow and need not be done normally, except
- // during startup and perhaps when new applications are installed
- TBool iAppDataRefreshNeeded;
-
- // window group ids returned by last WindowGroupList call
- RArray<TInt> iWgIds;
-
- // Dirty flag, indicates that iData is not up-to-date because
- // there were no subscribed clients during a previous possible
- // change of the task list.
- TBool iTaskListDirty;
-
- // For publishing the foreground app uid to Context Framework
- TAppUidHexString iFgAppUidStr;
- TUid iFgAppUid;
-
- };
-
-#endif