// Copyright (c) 1997-2009 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 "coepriv.h"

#include "coepanic.h"

#include <coecntrl.h>	// class CCoeControl

LOCAL_C TBool IsHandleValid(TUint aHandle)

	{

	return (aHandle&3)==0;

	}

//

// CCoeView class

//

CCoeView* CCoeView::NewLC(MCoeView& aView)

	{

	CCoeView* self=new(ELeave) CCoeView(aView);

	CleanupStack::PushL(self);

	return self;

	}

CCoeView::CCoeView(MCoeView& aView) : iView(aView)

	{

	}

//

// class CCoeRedrawer

//

CCoeRedrawer::CCoeRedrawer(RWsSession& aWsSession)

	:CActive(EActivePriorityRedrawEvents),

	 iWsSession(aWsSession),

	 iFirstRunL(ETrue)

	{

	CActiveScheduler::Add(this);

	Queue();

	}

CCoeRedrawer::~CCoeRedrawer()

	{

	Cancel();

	}

void CCoeRedrawer::Queue()

	{

	iWsSession.RedrawReady(&iStatus);

	SetActive();

	}

void CCoeRedrawer::RunL()

	{

	TWsRedrawEvent redraw;

	iWsSession.GetRedraw(redraw);

	const TUint handle = redraw.Handle();

	__ASSERT_ALWAYS(IsHandleValid(handle), Panic(ECoePanicInvalidHandle)); 

	CCoeControl* window=REINTERPRET_CAST(CCoeControl*,handle);

	Queue();

#if defined(_DEBUG)

	if (window)

		{

		TRAPD(err, window->HandleRedrawEvent(redraw.Rect()));

		__ASSERT_ALWAYS(err==KErrNone,Panic(ECoePanicLeaveWithoutTrapDuringRedraw));

		}

#else

	if (window)

		window->HandleRedrawEvent(redraw.Rect());

#endif

	iWsSession.Flush();	//flush the window-server client-side buffer *after* HandleRedrawEvent has done any drawing

#if defined(USE_IH_RAISE_EVENT)

	const TInt appStartupInstrumentationEventIdBase=CCoeEnv::Static()->AppStartupInstrumentationEventIdBase();

	if (appStartupInstrumentationEventIdBase!=0)

		{

		IH_DECLARE( lInstrumentationHandler );

		IH_CREATE( lInstrumentationHandler );

		IH_RAISE_EVENT( lInstrumentationHandler, appStartupInstrumentationEventIdBase+MTestInstrumentation::TIDOffsetEndApplicationFirstRedraw );

		IH_DELETE( lInstrumentationHandler );

		}

#endif

	if (iFirstRunL)

		{

		iFirstRunL=EFalse;

		}

	}

void CCoeRedrawer::DoCancel()

	{

	iWsSession.RedrawReadyCancel();

	}