--- a/taskswitcher/backstepping/src/tsbackstepping.cpp Wed Oct 06 16:00:22 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,218 +0,0 @@
-/*
-* Copyright (c) 2009 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:
-*
-*/
-
-#include "tsbackstepping.h"
-
-#include <w32std.h>// key event
-#include <apgwgnam.h>// for CApaWindowGroupName
-#include <apgtask.h>
-#include <coedef.h>
-#include <e32property.h>
-#include <e32debug.h>
-
-#include <homescreendomainpskeys.h>
-#include <afactivitylauncher.h>
-
-#include "tsbacksteppingfilter.h"
-#include "tsrunningapp.h"
-#include "tsrunningappstorage.h"
-#include "tsresourcemanager.h"
-/**
- * String to switch hsapplication to IDLE state using activity framework
- */
-_LIT(KHsActivactionUri, "appto://20022F35?activityname=HsIdleView&activityinbackground=true");
-
-// -----------------------------------------------------------------------------
-/**
- * Symbian two-phases constructor. Allocate create and initialize backstepping engine
- * Instance is pushed int cleanup stack.
- * @param aMonitor - window group changes monitor
- * @return address to backstepping engine
- */
-CTsBackstepping* CTsBackstepping::NewL( MTsWindowGroupsMonitor& aMonitor )
- {
- CTsBackstepping* self = CTsBackstepping::NewLC( aMonitor );
- CleanupStack::Pop( self );
- return self;
- }
-
-// -----------------------------------------------------------------------------
-/**
- * Symbian two-phases constructor. Allocate create and initialize backstepping engine
- * @param aMonitor - window group changes monitor
- * @return address to backstepping engine
- */
-CTsBackstepping* CTsBackstepping::NewLC( MTsWindowGroupsMonitor& aMonitor )
- {
- CTsBackstepping* self = new (ELeave) CTsBackstepping( aMonitor );
- CleanupStack::PushL( self );
- self->ConstructL();
- return self;
- }
-
-// -----------------------------------------------------------------------------
-/**
- * Constructor.
- * @param aMonitor - window group changes monitor
- */
-CTsBackstepping::CTsBackstepping( MTsWindowGroupsMonitor &aMonitor )
-:
-CTsWindowGroupsObserverBase( aMonitor ), iHsWasFirst(ETrue)
- {
- }
-
-// -----------------------------------------------------------------------------
-/**
- * CTsBackstepping::~CTsBackstepping
- * deconstructor
- */
-CTsBackstepping::~CTsBackstepping()
- {
- delete iFilter;
- }
-
-// -----------------------------------------------------------------------------
-/**
- * Symbian second-phase constructor.
- * Subscribe to window group monitor events (using BaseConstructL) and allocate
- * filtering list
- */
-void CTsBackstepping::ConstructL ()
- {
- BaseConstructL();
- iFilter = CTsBacksteppingFilter::NewL();
- }
-
-// -----------------------------------------------------------------------------
-/**
- * Analyzes window stack and move homescreen to proper position
- * Interface implementation.
- * @see MTsWindowGroupsObserver::HandleWindowGroupChanged
- */
-void CTsBackstepping::HandleWindowGroupChanged(
- MTsResourceManager &aResources,
- const MTsRunningApplicationStorage& aStorage )
-
- {
- RDebug::Print(_L("[Backstepping] started"));
- TRAP_IGNORE( HandleWindowGroupChangedL( aResources, aStorage ) );
- RDebug::Print(_L("[Backstepping] finished"));
- }
-
-// -----------------------------------------------------------------------------
-/**
- * Analyzes window stack and move homescreen to proper position
- * @see MTsWindowGroupsObserver::HandleWindowGroupChanged from param info
- */
-void CTsBackstepping::HandleWindowGroupChangedL(
- MTsResourceManager &aResources,
- const MTsRunningApplicationStorage& aStorage )
- {
- // calculate the desired position of Homescreen
- const TInt currentHsOffset( HomescreenOffsetL( aStorage ) );
- TInt optimalOffset(1);
- TInt targetHsOffset(currentHsOffset);
- TBool isFirst(ETrue);
- for( TInt offset(0); offset < currentHsOffset; ++offset )
- {
- RDebug::Print( _L("[Backstepping] application: %08x"),
- aStorage[offset].UidL().iUid );
- if( TUid::Null() != aStorage[offset].UidL() )
- {
- isFirst = EFalse;
- if( aStorage[offset].IsEmbeded())
- {
- targetHsOffset = aStorage.ParentIndex(aStorage[offset])+ 1;
- }
- else if (!iFilter->isBlocked( aStorage[offset].UidL() ))
- {
- if(offset + 1 < currentHsOffset &&
- aStorage[offset+1].UidL() == TUid::Null() )
- {
- ++optimalOffset;
- }
- targetHsOffset = optimalOffset;
- }
- break;
- }
- else
- {
- ++optimalOffset;
- }
- }
- SwitchToIdleStateL(aResources, isFirst);
- // change windows order if necessary
- if(targetHsOffset != currentHsOffset)
- {
- RDebug::Print(_L("[Backstepping] about to change window groups order"));
- aResources.WsSession().SetWindowGroupOrdinalPosition(
- aStorage[currentHsOffset].WindowGroupId(),
- targetHsOffset );
- }
- }
-
-// -----------------------------------------------------------------------------
-/**
- * Find and return current position of hsapplication on window server stack
- * @param aStorage - storage with running app info
- * @return position of hsapplication on window server stack
- */
-TInt CTsBackstepping::HomescreenOffsetL(
- const MTsRunningApplicationStorage& aStorage ) const
- {
- TInt offset( KErrNotFound );
- for( TInt iter(0); KErrNotFound == offset && iter < aStorage.Count(); ++iter )
- {
- if( KHsCategoryUid == aStorage[iter].UidL() )
- {
- offset = iter;
- }
- }
- User::LeaveIfError( offset );
- return offset;
- }
-
-// -----------------------------------------------------------------------------
-/**
- * Change hsapplication state to IDLE if moves to background
- * @param aResources - OS resources manager
- * @param aIsFrst - flag to inform if hsapplication is in foreground
- */
-void CTsBackstepping::SwitchToIdleStateL(MTsResourceManager& aResources,
- TBool aIsFirst)
- {
- // switch Homescreen to Idle state if Homescreen is not in foreground and is in different state
- if( iHsWasFirst && !aIsFirst )
- {
- TInt hsState( EHomeScreenIdleState );
- User::LeaveIfError(RProperty::Get( KHsCategoryUid,
- KHsCategoryStateKey,
- hsState ) );
- if(!(hsState & EHomeScreenWidgetViewActive ) )
- {
- RDebug::Print(_L("[Backstepping] about to switch HS activity"));
- CAfActivityLauncher *activityEnabler =
- CAfActivityLauncher::NewLC( aResources.ApaSession(),
- aResources.WsSession() );
- activityEnabler->launchActivityL( KHsActivactionUri );
- CleanupStack::PopAndDestroy( activityEnabler );
- }
- }
- iHsWasFirst = aIsFirst;
- }
-
-// end of file