diff -r fb3763350a08 -r 4d54b72983ae taskswitcher/contextengine/tsfswserver/engine/src/tsfswengine.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/taskswitcher/contextengine/tsfswserver/engine/src/tsfswengine.cpp Tue Jan 26 11:48:23 2010 +0200 @@ -0,0 +1,1043 @@ +/* +* 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 + * +*/ + + +#include "tsfswengine.h" +#include "tsfsalwaysshownapplist.h" +#include "tsfshiddenapplist.h" +#include "tsfswidgetlist.h" +#include "tsfswiconcache.h" +#include "tspreviewprovider.h" +#include "tsfswclient.h" +#include +#include +#include +#include // for CleanupResetAndDestroyPushL +#include +#include + +#include "enginelogging.h" + +// time to wait before refreshing content +const TInt KContentRefreshDelay = 500000; // 0.5 sec + +// for screenshots, they are scaled down to (screensize/this_factor). +const TInt KScreenSizeFactor = 2; + +// format to get a lowercase hex string prefixed with 0x +_LIT( KHexFmt, "0x%x" ); + +// -------------------------------------------------------------------------- +// CTsFswEngine::NewL +// -------------------------------------------------------------------------- +// +EXPORT_C CTsFswEngine* CTsFswEngine::NewL( MTsFswEngineObserver& aObserver ) + { + CTsFswEngine* self = NewLC( aObserver ); + CleanupStack::Pop( self ); + return self; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::NewLC +// -------------------------------------------------------------------------- +// +EXPORT_C CTsFswEngine* CTsFswEngine::NewLC( MTsFswEngineObserver& aObserver ) + { + CTsFswEngine* self = new ( ELeave ) CTsFswEngine( aObserver ); + CleanupStack::PushL( self ); + self->ConstructL(); + return self; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::CTsFswEngine +// -------------------------------------------------------------------------- +// +CTsFswEngine::CTsFswEngine( MTsFswEngineObserver& aObserver ) + : CActive( EPriorityStandard ), iObserver( aObserver ) + { + CActiveScheduler::Add( this ); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::ConstructL +// -------------------------------------------------------------------------- +// +void CTsFswEngine::ConstructL() + { + iEnv = CEikonEnv::Static(); + + User::LeaveIfError( iWsSession.Connect() ); + User::LeaveIfError( iAppArcSession.Connect() ); + + iHiddenAppList = CTsFsHiddenAppList::NewL( *this ); + iAlwaysShownAppList = CTsFsAlwaysShownAppList::NewL(); + + iWidgetsSupported = FeatureManager::FeatureSupported( KFeatureIdWebWidgets ); + if ( iWidgetsSupported ) + { + iWidgetList = CTsFsWidgetList::NewL(); + } + + // create app icon retriever instance + iAppIcons = CTsFswIconCache::NewL(); + + // get an initial list of tasks + iAppDataRefreshNeeded = ETrue; + CollectTasksL(); + + // listen for app screenshots + iPreviewProvider = CTsFastSwapPreviewProvider::NewL( *this ); + SetPreviewParams(); + UpdatePreviewContent(); + + iUpdateStarter = CPeriodic::NewL( CActive::EPriorityStandard ); + + // start listening for swi ps property + if ( iSwiProp.Attach( KUidSystemCategory, + Swi::KUidSoftwareInstallKey ) == KErrNone ) + { + iSwiProp.Subscribe( iStatus ); + SetActive(); + } + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::~CTsFswEngine +// -------------------------------------------------------------------------- +// +CTsFswEngine::~CTsFswEngine() + { + Cancel(); + iSwiProp.Close(); + + delete iUpdateStarter; + delete iPreviewProvider; + + // delete the bitmaps as the hash map cannot do that + THashMapIter iter( iScreenshots ); + while ( const TInt* key = iter.NextKey() ) + { + CFbsBitmap** value = iter.CurrentValue(); + delete *value; + } + iScreenshots.Close(); + delete iAppIcons; + + iData.ResetAndDestroy(); + iWgIds.Close(); + + delete iHiddenAppList; + delete iAlwaysShownAppList; + delete iWidgetList; + iAppArcSession.Close(); + iWsSession.Close(); + +// delete iContextUtility; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::FswDataL +// -------------------------------------------------------------------------- +// +EXPORT_C const RTsFswArray& CTsFswEngine::FswDataL() + { + TSLOG_CONTEXT( FswDataL, TSLOG_LOCAL ); + TSLOG1_IN( "dirty flag = %d", iTaskListDirty ); + + // check the dirty flag and refresh if needed + if ( iTaskListDirty ) + { + CollectTasksL(); + // dirty flag is cleared in the above call + } + + // Get app icon for entries without screenshot, + // do this only here as the app icon is not needed in case a screenshot + // is already available. + for ( TInt i = 0, ie = iData.Count(); i != ie; ++i ) + { + if ( !iData[i]->ScreenshotHandle() ) + { + CFbsBitmap* bmp; + CFbsBitmap* mask; + TUid appUid = iData[i]->AppUid(); + // this will leave with -46 in case of widgets if we do not have AllFiles cap + TRAPD( err, iAppIcons->GetIconL( appUid, bmp, mask ) ); + if ( err == KErrNone && bmp ) + { + iData[i]->SetAppIconHandles( bmp->Handle(), + mask ? mask->Handle() : 0 ); + } + else + { + iAppIcons->DefaultIcon( bmp, mask ); + iData[i]->SetAppIconHandles( bmp->Handle(), + mask ? mask->Handle() : 0 ); + } + } + } + + TSLOG_OUT(); + return iData; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::CloseAppL +// -------------------------------------------------------------------------- +// +EXPORT_C void CTsFswEngine::CloseAppL( TInt aWgId ) + { + TSLOG_CONTEXT( CloseAppL, TSLOG_LOCAL ); + TSLOG1_IN( "aWgId = %d", aWgId ); + + if ( iWidgetsSupported && aWgId < 0 && iWidgetAppUiWgId ) + { + // for widgets clients see a wgid that is -1*(index+1) + const RWidgetInfoArray& arr( iWidgetList->RunningWidgets() ); + // convert aWgId to an index in the list of running widgets + TInt idx = -aWgId - 1; + // if index is valid then handle the widget specially + if ( idx >= 0 && idx < arr.Count() ) + { + TWsEvent event; + event.SetType( EEventUser ); + TUint8* eventData = event.EventData(); + // Fill bits 0-31 with widget application uid. + reinterpret_cast( *eventData ) = KWidgetAppUidValue; + eventData += sizeof( TUint32 ); + // Fill bits 32-63 with uid of the widget that should be closed. + reinterpret_cast( *eventData ) = arr[idx]->iUid.iUid; + // Send the event to Widget AppUi. + iEnv->WsSession().SendEventToWindowGroup( + iWidgetAppUiWgId, event ); + // closing a widget may not cause a window group change so trigger + // the update manually + UpdateTaskList(); + TSLOG0_OUT( "widget processing finished" ); + return; + } + } + + TUid appUid = AppUidForWgIdL( aWgId ); + if ( !iAlwaysShownAppList->IsAlwaysShownApp( appUid ) ) + { + // send window group event to kill the app + TWsEvent event; + event.SetTimeNow(); + event.SetType( KAknShutOrHideApp ); + iEnv->WsSession().SendEventToWindowGroup( aWgId, event ); + TSLOG0( TSLOG_INFO, "event sent to wg" ); + } + + TSLOG_OUT(); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::SwitchToAppL +// -------------------------------------------------------------------------- +// +EXPORT_C void CTsFswEngine::SwitchToAppL( TInt aWgId ) + { + TSLOG_CONTEXT( SwitchToAppL, TSLOG_LOCAL ); + TSLOG1_IN( "aWgId = %d", aWgId ); + + if ( iWidgetsSupported && aWgId < 0 ) + { + // for widgets clients see a wgid that is -1*(index+1) + const RWidgetInfoArray& arr( iWidgetList->RunningWidgets() ); + // convert aWgId to an index in the list of running widgets + TInt idx = -aWgId - 1; + // if index is valid then handle the widget specially + if ( idx >= 0 && idx < arr.Count() ) + { + SwitchToWidgetL( idx ); + TSLOG1_OUT( "switched to widget %d", idx ); + return; + } + } + + TApaTask task( iEnv->WsSession() ); + task.SetWgId( aWgId ); + task.BringToForeground(); + + TSLOG_OUT(); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::SwitchToWidgetL +// -------------------------------------------------------------------------- +// +void CTsFswEngine::SwitchToWidgetL( TInt aWidgetIndex ) + { + const RWidgetInfoArray& arr( iWidgetList->RunningWidgets() ); + RApaLsSession ls; + User::LeaveIfError( ls.Connect() ); + CleanupClosePushL( ls ); + CApaCommandLine* cmdLine = CApaCommandLine::NewLC(); + cmdLine->SetCommandL( EApaCommandRun ); + TApaAppInfo info; + iAppArcSession.GetAppInfo( info, arr[aWidgetIndex]->iUid ); // codescanner::accessArrayElementWithoutCheck2 (aWidgetIndex checked in SwitchToAppL()) + cmdLine->SetExecutableNameL( info.iFullName ); + ls.StartApp( *cmdLine ); + CleanupStack::PopAndDestroy( 2, &ls ); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::UpdateTaskList +// Callback from appui +// -------------------------------------------------------------------------- +// +void CTsFswEngine::UpdateTaskList() + { + TSLOG_CONTEXT( UpdateTaskList, TSLOG_LOCAL ); + TSLOG_IN(); + + // If no clients are subscribed for fsw content change notifications + // then there is no need to waste time with rebuilding the task list, + // just set the dirty flag. + TInt listenerCount = iObserver.FswDataListenerCount(); + TSLOG1( TSLOG_INFO, "listener count = %d", listenerCount ); + if ( listenerCount > 0 ) + { + // There can be many calls in a row, use a timer to prevent degrading + // device performance. + if ( !iUpdateStarter->IsActive() ) + { + iUpdateStarter->Start( KContentRefreshDelay, 0, + TCallBack( UpdateStarterCallback, this ) ); + } + } + else + { + iTaskListDirty = ETrue; + } + + // screenshot taking support - call Register and Unregister when needed + UpdatePreviewContent(); + + // get the foreground app uid and publish it to CFW if different than before + TRAP_IGNORE( PublishFgAppUidL() ); + + TSLOG_OUT(); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::ForegroundAppUidL +// -------------------------------------------------------------------------- +// +EXPORT_C TUid CTsFswEngine::ForegroundAppUidL( TInt aType ) + { + // Do not use GetFocusWindowGroup or others. + // We want to see only "real" application uids in FgApp, + // i.e. stuff that would also be shown in the task swapper + // area of Taskswitcher. + + TUid result = KNullUid; + RArray allWgIds; + CleanupClosePushL( allWgIds ); + User::LeaveIfError( iWsSession.WindowGroupList( 0, &allWgIds ) ); + TInt count = allWgIds.Count(); + for ( TInt i = 0; i < count; ++i ) + { + // Depending on aType we may not need to bother with iParentId here. + // If aType == EUseEmbeddedUid => embedded apps are treated as others. + // If aType == EUseStandaloneUid => embedded apps must be ignored. + if ( allWgIds[i].iParentId > 0 + && aType == CTsFswClient::EUseStandaloneUid ) + { + continue; + } + + CApaWindowGroupName* wgn = CApaWindowGroupName::NewLC( + iWsSession, allWgIds[i].iId ); + TUid newUid = wgn->AppUid(); + TBool hidden = wgn->Hidden() || iHiddenAppList->IsHiddenL( + newUid, iWsSession, allWgIds[i].iId ); + CleanupStack::PopAndDestroy( wgn ); + + if ( !hidden && newUid.iUid ) + { + result = newUid; + break; + } + } + CleanupStack::PopAndDestroy( &allWgIds ); + + return result; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::PublishFgAppUidL +// -------------------------------------------------------------------------- +// +void CTsFswEngine::PublishFgAppUidL() + { + TSLOG_CONTEXT( PublishFgAppUidL, TSLOG_LOCAL ); + TSLOG_IN(); + + TUid newUid = ForegroundAppUidL( CTsFswClient::EUseEmbeddedUid ); + TSLOG2( TSLOG_INFO, "ws says: %x we have: %x", newUid.iUid, iFgAppUid.iUid ); + if ( iFgAppUid != newUid && newUid.iUid ) + { + iFgAppUid = newUid; + iFgAppUidStr.Format( KHexFmt, iFgAppUid.iUid ); + } + + TSLOG_OUT(); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::UpdateStarterCallback +// Callback for the timer +// -------------------------------------------------------------------------- +// +TInt CTsFswEngine::UpdateStarterCallback( TAny* aParam ) + { + CTsFswEngine* self = static_cast( aParam ); + self->iUpdateStarter->Cancel(); + // get list of tasks and notify observer if there is a change in the list + TBool changed = EFalse; + TRAPD( err, changed = self->CollectTasksL() ); + if ( err == KErrNone && changed ) + { + self->iObserver.FswDataChanged(); + } + return 0; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::CollectTasksL +// -------------------------------------------------------------------------- +// +TBool CTsFswEngine::CollectTasksL() + { + TSLOG_CONTEXT( CollectTasksL, TSLOG_LOCAL ); + TSLOG_IN(); + + // clear dirty flag + iTaskListDirty = EFalse; + + TBool changed = EFalse; + RTsFswArray newList; + CleanupResetAndDestroyPushL( newList ); + + // update app data if needed + // (usually on startup and when new apps might have been installed) + if ( iAppDataRefreshNeeded ) + { + TSLOG0( TSLOG_INFO, "refreshing app data" ); + iAppArcSession.GetAllApps(); + iAlwaysShownAppList->InitializeAlwaysShownListL(); + iAppDataRefreshNeeded = EFalse; + } + + // get all window groups + RArray allWgIds; + CleanupClosePushL( allWgIds ); + User::LeaveIfError( iWsSession.WindowGroupList( 0, &allWgIds ) ); + TInt count = allWgIds.Count(); + + for ( TInt i = 0; i < count; ++i ) + { + // ignore uninteresting entries (e.g. embedded apps) + if ( allWgIds[i].iParentId > 0 ) + { + continue; + } + + // get window group name + TInt wgId = allWgIds[i].iId; + CApaWindowGroupName* windowName = + CApaWindowGroupName::NewLC( iWsSession, wgId ); + TUid appUid = windowName->AppUid(); + + // ignore entries with null uid + if ( !appUid.iUid ) + { + CleanupStack::PopAndDestroy( windowName ); + continue; + } + + // will append the task to our own list only if it is not hidden + TBool onHiddenList = iHiddenAppList->IsHiddenL( + appUid, iWsSession, wgId ); + + // if this is the widget app then save wgid for later use + // and ignore it, but include running widgets instead + if ( iWidgetsSupported && appUid.iUid == KWidgetAppUidValue ) + { + iWidgetAppUiWgId = wgId; + onHiddenList = ETrue; + CheckWidgetsL( newList ); + } + + // get screen number (-1=console, 0=main screen, 1=cover ui) + TInt appScreen = 0; + TInt scrNumErr = iAppArcSession.GetDefaultScreenNumber( appScreen, appUid ); + + // check if it is on always-shown list + TBool mustShow = iAlwaysShownAppList->IsAlwaysShownApp( appUid ); + +#ifdef _DEBUG + const TDesC& captionDbg( windowName->Caption() ); + TSLOG4( TSLOG_INFO, "[%d] wgid=%d appuid=%x (%S)", i, wgId, + appUid.iUid, &captionDbg ); + TSLOG4( TSLOG_INFO, "hidden=%d onhiddenlist=%d mustshow=%d scrno=%d", + windowName->Hidden(), onHiddenList, mustShow, appScreen ); +#endif + + // add item to task list if it is always-shown OR it is not hidden + // and it is not on cover ui + if ( mustShow + || ( !onHiddenList + && !windowName->Hidden() + && ( appScreen == 0 || appScreen == -1 ) + && scrNumErr == KErrNone ) ) + { + if ( AddEntryL( wgId, appUid, windowName, newList, EFalse ) ) + { + changed = ETrue; + } + } + CleanupStack::PopAndDestroy( windowName ); + } + CleanupStack::PopAndDestroy( &allWgIds ); + + // if counts for old and new lists do not match then there is a change for sure, + // probably an app has been closed + if ( iData.Count() != newList.Count() ) + { + changed = ETrue; + } + + // move pointers from the temporary list into the real one + iData.ResetAndDestroy(); + TInt newListCount = newList.Count(); + TSLOG1( TSLOG_INFO, "new list count = %d", newListCount ); + for ( TInt i = 0; i < newListCount; ++i ) + { + TSLOG3( TSLOG_INFO, "[%d] %S wgid=%d", + i, &newList[i]->AppName(), newList[i]->WgId() ); + iData.AppendL( newList[i] ); + newList[i] = 0; + } + CleanupStack::PopAndDestroy( &newList ); + + TSLOG1_OUT( "change flag = %d", changed ); + return changed; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::AddEntryL +// -------------------------------------------------------------------------- +// +TBool CTsFswEngine::AddEntryL( TInt aWgId, const TUid& aAppUid, + CApaWindowGroupName* aWgName, RTsFswArray& aNewList, + TBool aIsWidget ) + { + TBool changed = EFalse; + CTsFswEntry* entry = CTsFswEntry::NewLC(); + entry->SetWgId( aWgId ); + entry->SetAppUid( aAppUid ); + entry->SetWidget( aIsWidget ); + + // check if present in old list and if yes then take some of the old data + TBool found = CheckIfExistsL( *entry, aAppUid, changed, aNewList ); + + // if not present previously then find out app name + // and check if screenshot is already available + if ( !found ) + { + // when adding a new entry to the list it is changed for sure + changed = ETrue; + HBufC* name = FindAppNameLC( aWgName, aAppUid, aWgId ); + if ( name ) + { + entry->SetAppNameL( *name ); + } + CleanupStack::PopAndDestroy( name ); + TInt h = LookupScreenshotHandle( aWgId ); + if ( h ) + { + entry->SetScreenshotHandle( h ); + } + entry->SetAlwaysShown( iAlwaysShownAppList->IsAlwaysShownApp( aAppUid ) ); + if ( aWgName ) + { + entry->SetSystemApp( aWgName->IsSystem() ); + } + } + + // add to new list, ownership is transferred + aNewList.AppendL( entry ); + CleanupStack::Pop( entry ); + return changed; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::CheckIfExistsL +// -------------------------------------------------------------------------- +// +TBool CTsFswEngine::CheckIfExistsL( CTsFswEntry& aEntry, + const TUid& aAppUid, + TBool& aChanged, + RTsFswArray& aNewList ) + { + for ( TInt entryIdx = 0, oldCount = iData.Count(); + entryIdx < oldCount; ++entryIdx ) + { + // Enough to check appuid, no need to bother with wgid as the + // screenshot handle is up-to-date or will be updated later anyway. + if ( iData[entryIdx]->AppUid() == aAppUid ) + { + // if positions do not match then the list is different than before + if ( entryIdx != aNewList.Count() ) + { + aChanged = ETrue; + } + CTsFswEntry* oldEntry = iData[entryIdx]; + aEntry.SetAppNameL( oldEntry->AppName() ); + aEntry.SetScreenshotHandle( oldEntry->ScreenshotHandle() ); + aEntry.SetAlwaysShown( oldEntry->AlwaysShown() ); + aEntry.SetSystemApp( oldEntry->SystemApp() ); + return ETrue; + } + } + return EFalse; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::CheckWidgetsL +// -------------------------------------------------------------------------- +// +void CTsFswEngine::CheckWidgetsL( RTsFswArray& aNewList ) + { + if ( iWidgetsSupported ) + { + iWidgetList->InitializeWidgetListL(); + const RWidgetInfoArray& arr( iWidgetList->RunningWidgets() ); + for ( TInt i = 0, ie = arr.Count(); i != ie; ++i ) + { + // wgid will be a special negative value + // windowgroupname is not needed here so pass NULL + AddEntryL( -(i+1), arr[i]->iUid, 0, aNewList, ETrue ); + } + } + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::HiddenAppListUpdated +// Callback from the hidden app list watcher +// -------------------------------------------------------------------------- +// +void CTsFswEngine::HiddenAppListUpdated() + { + UpdateTaskList(); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::AppUidForWgIdL +// -------------------------------------------------------------------------- +// +TUid CTsFswEngine::AppUidForWgIdL( TInt aWgId ) + { + CApaWindowGroupName* windowName = + CApaWindowGroupName::NewLC( iWsSession, aWgId ); + TUid appUid = windowName->AppUid(); + CleanupStack::PopAndDestroy( windowName ); + return appUid; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::FindParentWgId +// -------------------------------------------------------------------------- +// +TInt CTsFswEngine::FindParentWgId( TInt aWgId ) + { + TInt parent( KErrNotFound ); + RArray allWgIds; + // Ask for window group list from RWsSession + TInt error = iWsSession.WindowGroupList( 0, &allWgIds ); + if ( !error ) + { + TInt count( allWgIds.Count() ); + for ( TInt i( 0 ); i < count; i++ ) + { + RWsSession::TWindowGroupChainInfo info = allWgIds[i]; + if ( info.iId == aWgId ) + { + parent = info.iParentId; + break; + } + } + } + allWgIds.Close(); + return parent; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::FindAppNameLC +// -------------------------------------------------------------------------- +// +HBufC* CTsFswEngine::FindAppNameLC( CApaWindowGroupName* aWindowName, + const TUid& aAppUid, + TInt aWgId ) + { + //Retrieve the app name + TApaAppInfo info; + iAppArcSession.GetAppInfo( info, aAppUid ); + TPtrC caption = info.iShortCaption; + + HBufC* tempName = 0; + if ( !caption.Length() && aWindowName ) // if not set - use thread name instead + { + if ( aWindowName->Caption().Length() ) + { + tempName = aWindowName->Caption().AllocL(); + //put on cleanupstack after the if + } + else + { + TThreadId threadId; + TInt err = iWsSession.GetWindowGroupClientThreadId( + aWgId, threadId ); + if ( err == KErrNone ) + { + RThread thread; + CleanupClosePushL( thread ); + err = thread.Open ( threadId ); + if ( err==KErrNone ) + { + tempName = thread.Name().AllocL(); // codescanner::forgottoputptroncleanupstack + // tempName put on cleanupstack after the if + } + CleanupStack::PopAndDestroy( &thread ); + } + } + } + else + { + tempName = caption.AllocL(); + //put on cleanupstack after the if + } + CleanupStack::PushL( tempName ); + return tempName; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::CopyBitmapL +// -------------------------------------------------------------------------- +// +CFbsBitmap* CTsFswEngine::CopyBitmapL( TInt aFbsHandle, TBool aKeepAspectRatio ) + { + CFbsBitmap* ret = new (ELeave) CFbsBitmap; + CleanupStack::PushL( ret ); + CFbsBitmap* bmp = new (ELeave) CFbsBitmap; + CleanupStack::PushL( bmp ); + User::LeaveIfError( bmp->Duplicate( aFbsHandle ) ); + + //Make bitmap width and height equal so that it will look better in FSW control. + TSize size = bmp->SizeInPixels(); + + if ( !aKeepAspectRatio ) + { + if ( size.iHeight > size.iWidth ) + { + size.iHeight = size.iWidth; + } + else + { + size.iWidth = size.iHeight; + } + } + + // preserve size and mode + User::LeaveIfError( ret->Create( size, EColor64K ) ); + + CFbsBitmapDevice* doubleBufferDev = CFbsBitmapDevice::NewL( ret ); + CleanupStack::PushL( doubleBufferDev ); + + CFbsBitGc* doubleBufferGc = 0; + User::LeaveIfError( doubleBufferDev->CreateContext( doubleBufferGc ) ); + CleanupStack::PushL( doubleBufferGc ); + + // preserve size + doubleBufferGc->BitBlt( TPoint( 0, 0 ), bmp, TRect(size) ); + + CleanupStack::PopAndDestroy( doubleBufferGc ); + CleanupStack::PopAndDestroy( doubleBufferDev ); + CleanupStack::PopAndDestroy( bmp ); + CleanupStack::Pop( ret ); + + return ret; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::UpdatePreviewContent +// -------------------------------------------------------------------------- +// +void CTsFswEngine::UpdatePreviewContent() + { + TSLOG_CONTEXT( UpdatePreviewContent, TSLOG_LOCAL ); + TSLOG_IN(); + + RArray allWgIds; + if ( iWsSession.WindowGroupList( 0, &allWgIds ) == KErrNone ) + { + // check window groups that do not exist anymore + for ( TInt i = 0, ie = iWgIds.Count(); i != ie; ++i ) + { + TInt wgid = iWgIds[i]; + TBool present = EFalse; + for ( TInt j = 0, je = allWgIds.Count(); j != je; ++j ) + { + if ( allWgIds[j].iId == wgid ) + { + present = ETrue; + break; + } + } + if ( !present ) + { + TSLOG1( TSLOG_INFO, "unregister: %d", wgid ); + iPreviewProvider->Unregister( wgid ); + } + } + // check topmost window group + if ( allWgIds.Count() ) + { + if ( !iWgIds.Count() || allWgIds[0].iId != iWgIds[0] ) + { + TInt wgid = allWgIds[0].iId; + TSLOG1( TSLOG_INFO, "registering %d", wgid ); + iPreviewProvider->Register( wgid ); + } + } + // store the new list + iWgIds.Reset(); + for ( TInt i = 0, ie = allWgIds.Count(); i != ie; ++i ) + { + iWgIds.Append( allWgIds[i].iId ); + } + } + allWgIds.Close(); + + TSLOG_OUT(); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::HandleFswPpApplicationChange +// Callback from CTsFastSwapPreviewProvider +// Note: aWgId is for the window group for which the screenshot is taken, +// it may not be the same as the application's wgid (in case of embedded apps) +// -------------------------------------------------------------------------- +// +void CTsFswEngine::HandleFswPpApplicationChange( TInt aWgId, TInt aFbsHandle ) + { + TSLOG_CONTEXT( HandleFswPpApplicationChange, TSLOG_LOCAL ); + TSLOG2_IN( "aWgId = %d aFbsHandle = %d", aWgId, aFbsHandle ); + + CFbsBitmap* bmp = 0; + TRAPD( err, bmp = CopyBitmapL( aFbsHandle, EFalse ) ); + iPreviewProvider->AckPreview(aFbsHandle); + if ( err == KErrNone ) + { + CFbsBitmap** oldbmp = iScreenshots.Find( aWgId ); + if ( oldbmp ) + { + delete *oldbmp; + } + if ( iScreenshots.Insert( aWgId, bmp ) != KErrNone ) + { + delete bmp; + iScreenshots.Remove( aWgId ); + } + else + { + AssignScreenshotHandle( aWgId, bmp->Handle() ); + } + } + + TSLOG_OUT(); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::HandleFswPpApplicationUnregistered +// Callback from CTsFastSwapPreviewProvider +// -------------------------------------------------------------------------- +// +void CTsFswEngine::HandleFswPpApplicationUnregistered( TInt aWgId ) + { + TSLOG_CONTEXT( HandleFswPpApplicationUnregistered, TSLOG_LOCAL ); + TSLOG1_IN( "aWgId = %d", aWgId ); + + CFbsBitmap** bmp = iScreenshots.Find( aWgId ); + if ( bmp ) + { + delete *bmp; + iScreenshots.Remove( aWgId ); + AssignScreenshotHandle( aWgId, 0 ); + } + + TSLOG_OUT(); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::AssignScreenshotHandle +// Called when a screenshot arrives to check if there is a corresponding +// application in the task list. +// -------------------------------------------------------------------------- +// +void CTsFswEngine::AssignScreenshotHandle( TInt aWgIdForScreenshot, + TInt aBitmapHandle ) + { + TBool changed = EFalse; + TInt parentWgId = FindParentWgId( aWgIdForScreenshot ); + // now parentWgId is a valid wgid or KErrNotFound (-1) + for ( TInt i = 0, ie = iData.Count(); i != ie; ++i ) + { + if ( iData[i]->Widget() ) + { + // Do not do anything for now => no screenshot for widgets. + continue; + } + TInt appWgId = iData[i]->WgId(); + if ( appWgId == aWgIdForScreenshot || appWgId == parentWgId ) + { + iData[i]->SetScreenshotHandle( aBitmapHandle ); + changed = ETrue; + break; + } + } + if ( changed ) + { + iObserver.FswDataChanged(); + } + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::LookupScreenshotHandle +// Called to check if there is a screenshot already stored for the given +// app. (or a screenshot with a wgid for which aWgIdForApp is the parent) +// -------------------------------------------------------------------------- +// +TInt CTsFswEngine::LookupScreenshotHandle( TInt aWgIdForApp ) + { + CFbsBitmap** bmp = iScreenshots.Find( aWgIdForApp ); + if ( bmp ) + { + // there is a screenshot stored for this wgid + return (*bmp)->Handle(); + } + else if ( aWgIdForApp > 0 ) + { + // must check if there is a screenshot for which aWgIdForApp is the parent + THashMapIter iter( iScreenshots ); + while ( const TInt* wgid = iter.NextKey() ) + { + if ( FindParentWgId( *wgid ) == aWgIdForApp ) + { + CFbsBitmap** bmp = iter.CurrentValue(); + return (*bmp)->Handle(); + } + } + } + else if ( aWgIdForApp < 0 ) + { + // Must be a widget, wgid is useless in this case. + // Do not do anything for now => no screenshot for widgets. + } + return 0; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::RunL +// -------------------------------------------------------------------------- +// +void CTsFswEngine::RunL() + { + if ( iStatus != KErrCancel ) // when cancelling the subscribe it completes with KErrCancel + { + TInt value = 0; + if ( iSwiProp.Get( value ) == KErrNone ) + { + TInt operationStatus( value & Swi::KSwisOperationStatusMask ); + // When an (un)installation has finished change the flag to + // refresh the app list during the next task list update. + if ( operationStatus == Swi::ESwisStatusSuccess ) + { + iAppDataRefreshNeeded = ETrue; + } + } + iSwiProp.Subscribe( iStatus ); + SetActive(); + } + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::DoCancel +// -------------------------------------------------------------------------- +// +void CTsFswEngine::DoCancel() + { + iSwiProp.Cancel(); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::RunError +// -------------------------------------------------------------------------- +// +TInt CTsFswEngine::RunError( TInt /*aError*/ ) + { + return KErrNone; + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::HandleResourceChange +// callback from appui's HandleResourceChangeL +// -------------------------------------------------------------------------- +// +void CTsFswEngine::HandleResourceChange( TInt aType ) + { + TSLOG_CONTEXT( HandleResourceChange, TSLOG_LOCAL ); + TSLOG_IN(); + + if ( iPreviewProvider && aType == KEikDynamicLayoutVariantSwitch ) + { + SetPreviewParams(); + } + + TSLOG_OUT(); + } + +// -------------------------------------------------------------------------- +// CTsFswEngine::SetPreviewParams +// -------------------------------------------------------------------------- +// +void CTsFswEngine::SetPreviewParams() + { + TSize screenSize = iEnv->ScreenDevice()->SizeInPixels(); + iPreviewProvider->SetPreviewParam( + TSize( screenSize.iWidth / KScreenSizeFactor, + screenSize.iHeight / KScreenSizeFactor ), + EColor64K ); // displaymode is ignored + } + + +// end of file