/*

* Copyright (c) 2002 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: 

*

*/

#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS

#include <uikon/eikenvinterface.h>

#include <uikon/eikdefmacros.h>

#endif

#include "AknSgcc.h"

#include <eikspane.h>

#include <eikappui.h>

#include <eikenv.h>

#include <barsread.h>

#include <AknPriv.hrh>

#include <aknenv.h>

#include <aknconsts.h>

#include "AknDef.h"

#include <aknappui.h>

#include "AknSettingCache.h"

#include "AknLayoutConfig.h"

#include "UikonInternalPSKeys.h"

#include "AknPanic.h"

#define KLegacyScreenSize TSize(176, 208)

const TUid KAknSgcClientStaticId = { 0x101f7674 };

const TUint32 KPeninputServerUid = 0x10281855;

const TInt KStartupUnblankPriority = 10000;

enum TSgcClientFlags

	{

	EHandlingChange,

	EInAknSrv,

	ESystemFaded,

	ENeverRelinquish,

	EUseForegroundPriority

	};

NONSHARABLE_CLASS(CAknSgcClientImpl) : public CAknSgcImpl

	{

public:

	CAknSgcClientImpl(RAknUiServer& aAknSrv);

    void MoveApp(TInt aAppWindowGroupId, TSgcMoveAppToWhere aWhere);

private:

	RAknUiServer& iAknSrv;

	};

NONSHARABLE_CLASS(CAknSgcClientServerInst) : public CAknSgcClient

	{

public:

	CAknSgcClientServerInst();

	~CAknSgcClientServerInst();

private: // from CAknSgcClient

    const TDesC8& DoLayoutConfigBuf();

	void ConstructL();

private:

	HBufC8* iPackedLayoutConfigBuf;

	};

EXPORT_C void MAknSgcStatusPaneRedrawCoordinator::MAknSgcStatusPaneRedrawCoordinator_Reserved_1() {}

EXPORT_C void MAknSgcStatusPaneRedrawCoordinator::MAknSgcStatusPaneRedrawCoordinator_Reserved_2() {}

inline CAknSgcClient* CAknSgcClient::Static()

NONSHARABLE_CLASS(TSgcClientStatusPaneRedrawCoordinator) : public MAknSgcStatusPaneRedrawCoordinator

	{

public:

	TSgcClientStatusPaneRedrawCoordinator(RAknUiServer& aAknSrv);

	void BlockServerStatusPaneRedrawsL();

	void RedrawServerStatusPane();

private:

	RAknUiServer& iAknSrv;

	};

TSgcClientStatusPaneRedrawCoordinator::TSgcClientStatusPaneRedrawCoordinator(RAknUiServer& aAknSrv)

: iAknSrv(aAknSrv)

	{

	}

void TSgcClientStatusPaneRedrawCoordinator::BlockServerStatusPaneRedrawsL()

	{

	}

void TSgcClientStatusPaneRedrawCoordinator::RedrawServerStatusPane()

	{

	iAknSrv.RedrawServerStatusPane();

	}

EXPORT_C void CAknSgcClient::CreateL()

	{

	CAknSgcClient* self=CAknSgcClient::Static();

	if (!self)

		{

		RThread thread;

		if (thread.Name() == _L("akncapserver"))

			self = new(ELeave) CAknSgcClientServerInst();  // CCoeEnv takes ownership immediately

		else

			self = new(ELeave) CAknSgcClient(); // CCoeEnv takes ownership immediately

		self->ConstructL();

		}

	}

CAknSgcClient::~CAknSgcClient()

	{

	delete iImpl;

	delete iLayoutConfig;

	if (!iFlags[EInAknSrv])

		{

    	DoStartupUnblank();

		// iSpRedrawCoord and iAknSrv are only owned/opened if this object

		// is not running in the AknSrv process (see ConstructL()).

		delete static_cast<TSgcClientStatusPaneRedrawCoordinator*>(iSpRedrawCoord);

		iAknSrv.Close();

		}

	delete iDrawSync;

	}

void CAknSgcClient::ClearHandlingChangeFlag(TAny* aThis)

	{

	static_cast<CAknSgcClient*>(aThis)->iFlags.Clear(EHandlingChange);

	}

EXPORT_C void CAknSgcClient::HandleChangeL()

	{

	CAknSgcClient* self = Static();

	if (self)

		self->DoHandleChangeL();

	}

void CAknSgcClient::DoHandleChangeL()

	{

	if (iFlags[EInAknSrv])

		return;

	CAknAppUi* topAppUi = iAvkonAppUi;

	if (!topAppUi)

		return;

	if (iFlags[EHandlingChange])

		return;

	iFlags.Set(EHandlingChange);

	CleanupStack::PushL(TCleanupItem(ClearHandlingChangeFlag, this));

	TInt spLayout = 0;

	TInt spFlags = 0;

	TBitFlags appFlags;

	TInt screenMode = KAknScreenModeUnset;

	SetLegacyOrientationAndScreenModeAppUiFlags(appFlags, screenMode, topAppUi);

	appFlags.Assign(EFullScreen, topAppUi->IsFullScreenApp());

	TBool partialFg = topAppUi->IsPartialForeground();

	TBool foreground = topAppUi->IsForeground();

	// loop over app UIs from most embedded to base app

	for (CAknAppUiBase* appUi = static_cast<CAknAppUiBase*>(topAppUi); appUi; appUi = static_cast<CAknAppUiBase*>(appUi->ContainerAppUi()))

		{

		CEikStatusPane* sp = StatusPane(appUi);

		if (sp && !spLayout)

			{

			spLayout = sp->CurrentLayoutResId();

			spFlags = sp->Flags();

			}

		if (appUi != topAppUi)

			{

			SetLegacyOrientationAndScreenModeAppUiFlags(appFlags, screenMode, appUi);

			partialFg = (foreground || partialFg) && !appFlags[EFullScreen];

			foreground = EFalse;

			appFlags.Assign(EFullScreen, appFlags[EFullScreen] || appUi->IsFullScreenApp());

			SetAppUiForegroundL(appUi, foreground);

			SetAppUiPartialFgL(appUi, partialFg);

			}

		}

	if (spLayout != iSpLayout || 

	    !(appFlags == iAppFlags) || 

	    spFlags != iSpFlags ||

	    screenMode != iAppScreenMode)

		{

		iSpLayout = spLayout;

		iSpFlags = spFlags;

		iAppFlags = appFlags;

		iAppScreenMode = screenMode;

		User::LeaveIfError(iAknSrv.SetSgcParams(iEikonEnv->RootWin().Identifier(), appFlags, spLayout, spFlags, screenMode));

		}

	CleanupStack::PopAndDestroy();

	}

CAknSgcClient::CAknSgcClient()

: CCoeStatic(KAknSgcClientStaticId), iCoeEnv(CCoeEnv::Static())

	{

	}

void CAknSgcClient::BaseConstructL()

	{

	RProcess process;

	if( process.SecureId() == KPeninputServerUid )

	    {

	    iFlags.Set(ENeverRelinquish);

	    }

	iDrawSync = CAknDrawSynchronizer::NewL();

	iLayoutConfig = new(ELeave) CAknLayoutConfig;

	}

void CAknSgcClient::ConstructL()

	{

	BaseConstructL();

	User::LeaveIfError(iAknSrv.Connect());

	iSpRedrawCoord = new(ELeave) TSgcClientStatusPaneRedrawCoordinator(iAknSrv);

	SetImpl(new(ELeave) CAknSgcClientImpl(iAknSrv));

    if(iAvkonEnv->HasBlank())

        StartupBlankL();

	HBufC8* packedBuf;

	if (iAknSrv.Handle())

		{

		packedBuf = iAknSrv.GetPackedConfigL();

		}

	else

		{	// eiksrv will end up here

		packedBuf = iLayoutConfig->CreatePackedBufL();

		}

	iLayoutConfig->ConstructL(packedBuf);

	}

CEikStatusPane* CAknSgcClient::StatusPane(CEikAppUi* aAppUi)

	{

	MEikAppUiFactory* factory = iEikonEnv->AppUiFactory(*aAppUi);

	if (factory)

		return factory->StatusPane();

	else

		return NULL;

	}

void CAknSgcClient::SetAppUiForegroundL(CAknAppUiBase* aAppUi, TBool aForeground)

	{

	if (!COMPARE_BOOLS(aAppUi->IsForeground(), aForeground))

		SimulateWsEventL(aAppUi, aForeground ? EEventFocusGained : EEventFocusLost);

	}

void CAknSgcClient::SetAppUiPartialFgL(CAknAppUiBase* aAppUi, TBool aPartialFg)

	{

	if (!COMPARE_BOOLS(aAppUi->IsPartialForeground(), aPartialFg))

		SimulateWsEventL(aAppUi, aPartialFg ? KEikPartialForeground : KEikClearPartialForegroundState);

	}

void CAknSgcClient::SimulateWsEventL(CEikAppUi* aAppUi, TInt aEventId)

	{

	TWsEvent event;

	event.SetType(aEventId);

	event.SetHandle(0);

#if (defined(SYMBIAN_SUPPORT_UI_FRAMEWORKS_V1) || defined(__SERIES60_27__) || defined(__SERIES60_28__)) 

	static_cast<CCoeAppUiBase*>(aAppUi)->HandleWsEventL(event, NULL);	

#else 

	static_cast<CCoeAppUi*>(aAppUi)->HandleWsEventL(event, NULL);

#endif 

	}

EXPORT_C RAknUiServer* CAknSgcClient::AknSrv()

	{

	CAknSgcClient* self = Static();

	if (self)

		return &self->iAknSrv;

	else

		return NULL;

	}

EXPORT_C void CAknSgcClient::SetStatusPaneRedrawCoordinator(MAknSgcStatusPaneRedrawCoordinator* aSpRedrawCoord)

	{

	CAknSgcClient* self = Static();

	if (self)

		{

		ASSERT(!self->iSpRedrawCoord || !aSpRedrawCoord);

		self->iSpRedrawCoord = aSpRedrawCoord;

		}

	}

EXPORT_C void CAknSgcClient::BlockServerStatusPaneRedrawsL()

	{

	}

EXPORT_C void CAknSgcClient::RedrawServerStatusPane()

	{

	CAknSgcClient* self = Static();

	if (self && self->iSpRedrawCoord)

		self->iSpRedrawCoord->RedrawServerStatusPane();

	}

EXPORT_C CAknDrawSynchronizer* CAknSgcClient::DrawSynchronizer()

	{

	CAknSgcClient* self = Static();

	if (self)

		return self->iDrawSync;

	else

		return NULL;

	}

EXPORT_C void CAknSgcClient::PrepareForAppExit()

	{

	CAknSgcClient* self = Static();

	if (self)

		self->DoPrepareForAppExit();

	}

void CAknSgcClient::DoPrepareForAppExit()

	{

	if (!iFlags[EInAknSrv])

		{

		iAknSrv.PrepareForAppExit(iEikonEnv->RootWin().Identifier());

		}

	}

EXPORT_C void CAknSgcClient::SetSystemFaded(TBool aFade)

	{

	CAknSgcClient* self = Static();

	if (self)

		self->DoSetSystemFaded(aFade);

	}

EXPORT_C TBool CAknSgcClient::IsSystemFaded()

	{

	CAknSgcClient* self = Static();

	if (self)

		return self->DoIsSystemFaded();

	else

		return EFalse;

	}

void CAknSgcClient::DoSetSystemFaded(TBool aFade)

	{

	if (iFlags[EInAknSrv])

		{

		if (!COMPARE_BOOLS(iFlags[ESystemFaded], aFade))

			{

			if (aFade)

				{

				RedrawServerStatusPane();

				}

			}

		iEikonEnv->WsSession().SetSystemFaded(aFade);

		iFlags.Assign(ESystemFaded, aFade);	

		}

	else

		{

		iAknSrv.SetSystemFaded(aFade);

		}

	}

TBool CAknSgcClient::DoIsSystemFaded() const

	{

	if (iFlags[EInAknSrv])

		{

		return iFlags[ESystemFaded];

		}

	else

		{

		TBool fade;

		iAknSrv.IsSystemFaded(fade);

		return fade;

		}

	}

void CAknSgcClient::SetLegacyOrientationAndScreenModeAppUiFlags(TBitFlags& aAppFlags, TInt& aScreenMode, CAknAppUiBase* aAppUi)

	{

	if (!aAppFlags[EFullScreen] && aAppUi->IsFullScreenApp())

		{

	//	aAppFlags.Assign(ELegacyLayout, !aAppUi->IsLayoutAwareApp()); // Fix Me !!

		CAknAppUiBase::TAppUiOrientation r = aAppUi->Orientation();

		aAppFlags.Assign(EOrientationSpecified, r != CAknAppUiBase::EAppUiOrientationUnspecified);

		aAppFlags.Assign(EOrientationLandscape, r == CAknAppUiBase::EAppUiOrientationLandscape);

		aScreenMode = aAppUi->ScreenMode();

		}

	}

EXPORT_C TPixelsTwipsAndRotation CAknSgcClient::PixelsAndRotation()

	{

	CAknSgcClient* self = Static();

	if (self)

		{

		TBitFlags& flags = self->iAppFlags;

    	TInt mode = self->iAppScreenMode;

		return self->DoCalculatePixelsAndRotation(flags[EFullScreen], flags[ELegacyLayout], flags[EOrientationSpecified], flags[EOrientationLandscape], mode);

		}

	else

		{

		TPixelsTwipsAndRotation r;

		CEikonEnv::Static()->ScreenDevice()->GetDefaultScreenSizeAndRotation(r);

		return r;

		}

	}

inline TBool AspectIsLandscape(const TPixelsTwipsAndRotation& aR)

	{

	return aR.iPixelSize.iWidth > aR.iPixelSize.iHeight;

	}

EXPORT_C TPixelsTwipsAndRotation CAknSgcClient::CalculatePixelsAndRotation(TBool aFullScreen, TBool aLegacyApp, TBool aAppOrientationSpecified, TBool aAppOrientationLandscape)

	{

	CAknSgcClient* self = Static();

	if (self)

		{

		return self->DoCalculatePixelsAndRotation(aFullScreen, aLegacyApp, aAppOrientationSpecified, aAppOrientationLandscape, KAknScreenModeUnset);

		}

	else

		{

		TPixelsTwipsAndRotation r;

		CEikonEnv::Static()->ScreenDevice()->GetDefaultScreenSizeAndRotation(r);

		return r;

		}

	}

TPixelsTwipsAndRotation CAknSgcClient::DoCalculatePixelsAndRotation(TBool aFullScreen, TBool aLegacyApp, TBool aAppOrientationSpecified, TBool aAppOrientationLandscape, TInt aAppScreenMode)

	{

	CAknLayoutConfig::TScreenMode screenMode = DoCalculateScreenMode(aFullScreen, aAppOrientationSpecified, aAppOrientationLandscape, aAppScreenMode);

	TPixelsTwipsAndRotation r = screenMode.PixelsTwipsAndRotation();

	// legacy mode

	if (aLegacyApp && aFullScreen)

		r.iPixelSize = KLegacyScreenSize;

	return r;

	}

EXPORT_C CAknLayoutConfig::TScreenMode CAknSgcClient::ScreenMode()

	{

	CAknSgcClient* self = Static();

	__ASSERT_ALWAYS(self, Panic(EAknPanicSgccNull));

	TBitFlags& flags = self->iAppFlags;

	TInt mode = self->iAppScreenMode;

	return self->DoCalculateScreenMode(flags[EFullScreen], flags[EOrientationSpecified], flags[EOrientationLandscape], mode);

	}

EXPORT_C CAknLayoutConfig::TScreenMode CAknSgcClient::CalculateScreenMode(TBool aFullScreen, TBool aAppOrientationSpecified, TBool aAppOrientationLandscape)

	{

	return CalculateScreenMode(aFullScreen, aAppOrientationSpecified, aAppOrientationLandscape, KAknScreenModeUnset);

	}

EXPORT_C CAknLayoutConfig::TScreenMode CAknSgcClient::CalculateScreenMode(TBool aFullScreen, TBool aAppOrientationSpecified, TBool aAppOrientationLandscape, TInt aAppScreenMode)

	{

	CAknSgcClient* self = Static();

	__ASSERT_ALWAYS(self, Panic(EAknPanicSgccNull));

	return self->DoCalculateScreenMode(aFullScreen, aAppOrientationSpecified, aAppOrientationLandscape, aAppScreenMode);

	}

CAknLayoutConfig::TScreenMode CAknSgcClient::DoCalculateScreenMode(TBool aFullScreen, TBool aAppOrientationSpecified, TBool aAppOrientationLandscape, TInt aAppScreenMode)

	{

	if (!aFullScreen)

		{

		// return current screen mode for partial screen apps

		return iLayoutConfig->ScreenModes().Find(iEikonEnv->ScreenDevice()->CurrentScreenMode());

		}

    if (aAppScreenMode != KAknScreenModeUnset)

		{

		// return current screen mode set by the app

		return iLayoutConfig->ScreenModes().Find(aAppScreenMode);

		}

	TInt hwStateNum = iAvkonEnv->SettingCache().HardwareLayoutState();

	CAknLayoutConfig::THardwareState hwScreen = iLayoutConfig->HardwareStates().Find(hwStateNum);

    TInt mode;

    TInt orientation = iAvkonEnv->SettingCache().PreferredOrientation();

    if ( orientation == EPreferredOrientationNormal )

        {

        mode = hwScreen.ScreenMode();

        }

    else

        {

        mode = hwScreen.AlternateScreenMode();

        }

	CAknLayoutConfig::TScreenMode screenMode = iLayoutConfig->ScreenModes().Find(mode);

	if (aAppOrientationSpecified &&

		!COMPARE_BOOLS(aAppOrientationLandscape, AspectIsLandscape(screenMode.PixelsTwipsAndRotation())))

		{

        if ( orientation == EPreferredOrientationNormal )

            {

    		// App rotation specificied but orientation is different to hw state

	    	// so use alternate mode

            mode = hwScreen.AlternateScreenMode();

            }

        else 

            {

            mode = hwScreen.ScreenMode();

            }

		return iLayoutConfig->ScreenModes().Find(mode);

		}

	return screenMode;

	}