/*
* 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 <apgtask.h>
#include <AknDef.h>
#include <apgwgnam.h>
#include <mmf/common/mmfcontrollerpluginresolver.h> // for CleanupResetAndDestroyPushL
#include <featmgr.h>
#include <swi/swispubsubdefs.h>
#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<TInt, CFbsBitmap*> 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<TUint32&>( *eventData ) = KWidgetAppUidValue;
eventData += sizeof( TUint32 );
// Fill bits 32-63 with uid of the widget that should be closed.
reinterpret_cast<TUint32&>( *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<RWsSession::TWindowGroupChainInfo> 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<CTsFswEngine*>( 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<RWsSession::TWindowGroupChainInfo> 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<RWsSession::TWindowGroupChainInfo> 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 && info.iParentId > 0)
{
parent = info.iParentId;
break;
}
}
}
allWgIds.Close();
return parent;
}
// --------------------------------------------------------------------------
// CTsFswEngine::FindMostTopParentWgId
// --------------------------------------------------------------------------
//
TInt CTsFswEngine::FindMostTopParentWgId( TInt aWgId )
{
TInt parent( KErrNotFound );
parent = FindParentWgId( aWgId );
if( parent != KErrNotFound)
{
TInt topParent = FindMostTopParentWgId(parent);
if( topParent != KErrNotFound )
{
parent = topParent;
}
}
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<RWsSession::TWindowGroupChainInfo> 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. Firstly try to match screenshot into parental
// application then into standalone one.
// --------------------------------------------------------------------------
//
void CTsFswEngine::AssignScreenshotHandle( TInt aWgIdForScreenshot,
TInt aBitmapHandle )
{
TBool changed = EFalse;
TInt parentWgId = FindMostTopParentWgId( aWgIdForScreenshot );
// now parentWgId is a valid wgid or KErrNotFound (-1)
if (parentWgId != KErrNotFound)
{
AssignScreenshotHandle( parentWgId, aBitmapHandle, changed );
}
if (!changed)
{
AssignScreenshotHandle( aWgIdForScreenshot, aBitmapHandle, changed );
}
if ( changed )
{
iObserver.FswDataChanged();
}
}
// --------------------------------------------------------------------------
// CTsFswEngine::AssignScreenshotHandle
// Called when a screenshot arrives to check if there is a corresponding
// application in the task list. It might be tried to be match into parental
// or standalone application.
// --------------------------------------------------------------------------
//
void CTsFswEngine::AssignScreenshotHandle(TInt aWgIdForScreenshot,
TInt aBitmapHandle, TBool& aAsigned)
{
aAsigned = EFalse;
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)
{
iData[i]->SetScreenshotHandle(aBitmapHandle);
aAsigned = ETrue;
break;
}
}
}
// --------------------------------------------------------------------------
// 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<TInt, CFbsBitmap*> 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