--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/backsteppingsrv/src/bsserver.cpp	Thu Dec 17 08:54:17 2009 +0200
@@ -0,0 +1,326 @@
+/*
+* Copyright (c) 2007 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:  BS Server - implemenration of CServer2 
+ *
+*/
+
+
+#include <eikenv.h>
+#include <eikappui.h>
+#include <apgwgnam.h>
+#include <e32base.h>
+
+#include "bsengineglobals.h"
+#include "bsengine.h"
+#include "bsserversession.h"
+#include "bsdebug.h"
+#include "bsserver.h"
+
+const TInt idsArrayGranularity = 30;
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// C++ default constructor can NOT contain any code, that might leave.
+// -----------------------------------------------------------------------------
+//
+CBSServer::CBSServer( TInt aPriority ) :
+    CServer2(aPriority)
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CBSServer::ConstructL()
+    {
+    DEBUG(("Start BS Server" ));
+    iEngine = CBSEngine::NewL( );
+    StartL( KBSEngineName );
+    }
+
+// -----------------------------------------------------------------------------
+// Two-phased constructor.
+// -------------------------------------- ---------------------------------------
+//
+CBSServer* CBSServer::NewLC()
+    {
+    CBSServer* self = new( ELeave ) CBSServer( EPriorityNormal );
+    CleanupStack::PushL( self );
+    self->ConstructL( );
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor.
+// -------------------------------------- ---------------------------------------
+//
+CBSServer::~CBSServer()
+    {
+    DEBUG(("Destroy BS Server" ));
+    delete iEngine;
+    }
+
+// -----------------------------------------------------------------------------
+// Create new session.
+// -----------------------------------------------------------------------------
+//
+CSession2* CBSServer::NewSessionL( const TVersion& aVersion,
+    const RMessage2& /*aMessage*/ ) const
+    {
+    // Check we're the right version
+    if ( !User::QueryVersionSupported( TVersion( KBSEngineMajorVersionNumber,
+        KBSEngineMinorVersionNumber, KBSEngineBuildVersionNumber ), aVersion ) )
+        {
+        User::Leave( KErrNotSupported );
+        }
+
+    return CBSServerSession::NewL( ( CBSServer* ) this );
+    }
+
+// -----------------------------------------------------------------------------
+// Increment sessions.
+// -----------------------------------------------------------------------------
+//
+void CBSServer::IncrementSessions()
+    {
+    iSessionCount++;
+    }
+
+// -----------------------------------------------------------------------------
+// Decrement sessions.
+// -----------------------------------------------------------------------------
+//
+void CBSServer::DecrementSessions()
+    {
+    iSessionCount--;
+    }
+// -----------------------------------------------------------------------------
+// RunError is called when RunL leaves.
+// -----------------------------------------------------------------------------
+//
+TInt CBSServer::RunError( TInt aError )
+    {
+    DEBUG(("CBSServer::RunError %d", aError ));
+    if ( aError == KErrBadDescriptor )
+        {
+        PanicClient( Message( ), EBSEngineBadDescriptor );
+        }
+    else
+        {
+        Message().Complete( aError );
+        }
+
+    // The leave will result in an early return from CServer::RunL(), skipping
+    // the call to request another message. So do that now in order to keep the
+    // server running.
+    ReStart( );
+    // Handled the error fully
+    return KErrNone;
+    }
+
+// -----------------------------------------------------------------------------
+// Panic client.
+// -----------------------------------------------------------------------------
+//
+void CBSServer::PanicClient( const RMessage2& aMessage, TBSEnginePanic aPanic )
+    {
+    aMessage.Panic( KBSEngineName, aPanic );
+    }
+
+// -----------------------------------------------------------------------------
+// Panic server.
+// -----------------------------------------------------------------------------
+//
+void CBSServer::PanicServer( TBSEnginePanic aPanic )
+    {
+    User::Panic( KBSEngineName, aPanic );
+    }
+
+// -----------------------------------------------------------------------------
+// Create and start the server.
+// -----------------------------------------------------------------------------
+//
+void CBSServer::ThreadFunctionL()
+    {
+    CBSAppUi* ui = new (ELeave) CBSAppUi;
+    ui->ConstructL( );
+
+    // Construct our server        
+    CBSServer* server = CBSServer::NewLC( );
+
+    // set engine to AppUI to get notification about focus changes
+    ui->iEngine = &(server->Engine( ));
+
+    RProcess::Rendezvous( KErrNone );
+
+    // Start handling requests
+    CActiveScheduler::Start( );
+
+    CleanupStack::PopAndDestroy( server );
+
+    ui->PrepareToExit( );
+
+    }
+// -----------------------------------------------------------------------------
+// Create and start the server.
+// -----------------------------------------------------------------------------
+//
+TInt CBSServer::ThreadFunction()
+    {
+    __UHEAP_MARK;
+
+    User::RenameThread( KBSEngineThreadName );
+
+    CBSEikonEnv* env = new CBSEikonEnv;
+    __ASSERT_ALWAYS( env, PanicServer( EBSEngineEIkonEnv ) );
+
+    TRAPD(error, env->ConstructL(););
+    __ASSERT_ALWAYS( !error, PanicServer( EBSEngineEIkonEnv ) );
+
+    TRAPD( err, ThreadFunctionL() );
+    if ( err != KErrNone )
+        {
+        PanicServer( EBSEngineSrvCreateServer );
+        }
+
+    env->DestroyEnvironment( );
+
+    __UHEAP_MARKEND;
+    return KErrNone;
+    }
+
+// -----------------------------------------------------------------------------
+// Getter of engine
+// -----------------------------------------------------------------------------
+//
+CBSEngine& CBSServer::Engine()
+    {
+    return *iEngine;
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+void CBSServer::CBSEikonEnv::DestroyEnvironment()
+    {
+    CEikonEnv::DestroyEnvironment( );
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+void CBSServer::CBSEikonEnv::ConstructL()
+    {
+    CEikonEnv::ConstructL( EFalse ); 
+    SetAutoForwarding(ETrue); 
+    User::SetPriorityControl(EFalse);
+    }
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+CBSServer::CBSAppUi::~CBSAppUi()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+void CBSServer::CBSAppUi::HandleWsEventL( const TWsEvent& aEvent,
+    CCoeControl* /*aDestination*/)
+    {
+    if ( aEvent.Type( ) == EEventFocusGroupChanged 
+        || aEvent.Type( ) == EEventWindowGroupsChanged )
+        {
+
+        TInt windowsGroupID = iCoeEnv->WsSession().GetFocusWindowGroup( );
+        CApaWindowGroupName* apaWGName = CApaWindowGroupName::NewLC(
+            iCoeEnv->WsSession( ), windowsGroupID );
+        TUid uid = apaWGName->AppUid( );
+        CleanupStack::PopAndDestroy( apaWGName );
+        // if UID is 0, ignore event. 
+        // Next event should bring correct information
+        if ( uid.iUid )
+            {
+            iEngine->HandleFocusChangeL( uid );
+            }
+        }
+    else if( aEvent.Type( ) == EEventKeyDown ) 
+        {
+        iEngine->ApplicationKeyWasPressed( );
+        ForwardEventL( aEvent );     
+        }
+    else if( aEvent.Type( ) == EEventKeyUp )
+        {
+        ForwardEventL( aEvent );     
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+void CBSServer::CBSAppUi::ForwardEventL( const TWsEvent& aEvent )
+    {
+    CArrayFixFlat<TInt>* idArray = 
+                    new (ELeave) CArrayFixFlat<TInt>( idsArrayGranularity );
+    iCoeEnv->WsSession().WindowGroupList( idArray );
+    
+    TInt ownId = iCoeEnv->RootWin().Identifier();
+    for( TInt x(0); x < idArray->Count(); x++ )
+        {
+        if( (*idArray)[x] != ownId )
+            {
+            iCoeEnv->WsSession().SendEventToWindowGroup( 
+                                                    (*idArray)[x], aEvent );
+            }
+        }
+    delete idArray;
+    }
+
+// -----------------------------------------------------------------------------
+// 
+// -----------------------------------------------------------------------------
+//
+void CBSServer::CBSAppUi::ConstructL()
+    {
+    CEikAppUi::BaseConstructL( ENoAppResourceFile | ENoScreenFurniture );
+    //get notifications about focus change events    
+    iCoeEnv->RootWin().EnableFocusChangeEvents( );
+    //get notifications about windows group change events    
+    iCoeEnv->RootWin().EnableGroupChangeEvents( );
+    //disable notifications about layout change
+    iCoeEnv->RootWin().DisableScreenChangeEvents();
+    //get notifications about application key event
+    iCoeEnv->RootWin().CaptureKeyUpAndDowns( EStdKeyApplication0, 0, 0 );
+    }
+
+// ============================= LOCAL FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// E32Main item point.
+// -----------------------------------------------------------------------------
+//
+TInt E32Main()
+    {
+    return CBSServer::ThreadFunction( );
+    }
+
+// End of File
+