// Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "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:

// e32\ewsrv\ky_capt.cpp

// Provides the operations of setting and cancelling capture-keys

// 

//

#include <e32svr.h>

#include <k32keys.h>

const TInt KCaptureKeyArrayGranularity=5;

EXPORT_C CCaptureKeys::CCaptureKeys()

	: iCKarray(KCaptureKeyArrayGranularity, _FOFF(TCaptureKey,iHandle))

	{

	}

EXPORT_C void CCaptureKeys::Construct()

//

//

//

	{

	}

EXPORT_C CCaptureKeys::~CCaptureKeys()

//

// Destructor

//

	{

	iCKarray.Close();

	}

void CCaptureKeys::CheckCaptureKey(const TCaptureKey& aCaptureKey)

	{

	if ((aCaptureKey.iModifiers.iValue&~aCaptureKey.iModifiers.iMask)!=0)

		User::Leave(KErrArgument);

	}

EXPORT_C void CCaptureKeys::AddCaptureKeyL(const TCaptureKey& aCaptureKey)

//

// Adds the specified capture-key to the list

//

	{

	AddCaptureKeyL(aCaptureKey,0);

	}

EXPORT_C void CCaptureKeys::AddCaptureKeyL(const TCaptureKey& aCaptureKey, TUint8 aPriority)

//

// Adds the specified capture-key to the beginning of the list

//

	{

	TCaptureKey captureKey(aCaptureKey);

	captureKey.iKeyCodePattern.iFiller = aPriority;// Priority is stored in spare data member 'iFiller'

	CheckCaptureKey(captureKey);

	User::LeaveIfError(iCKarray.Insert(captureKey,0));

	}

EXPORT_C void CCaptureKeys::SetCaptureKey(TUint32 aHandle, const TCaptureKey& aCaptureKey)

//

// Finds the first capture-key from the list that matches the handle and sets

// it to the new value.

//

	{

	SetCaptureKey(aHandle,aCaptureKey,0);

	}

EXPORT_C void CCaptureKeys::SetCaptureKey(TUint32 aHandle, const TCaptureKey& aCaptureKey, TUint8 aPriority)

//

// Finds the first capture-key from the list that matches the handle and sets

// it to the new value.

//

	{

	TCaptureKey captureKey(aCaptureKey);

	captureKey.iKeyCodePattern.iFiller = aPriority;// Priority is stored in spare data member 'iFiller'

	CheckCaptureKey(captureKey);

	TCaptureKey ck;

	ck.iHandle=aHandle;

	TInt r=iCKarray.Find(ck);

	if (r>=0)

		iCKarray[r]=captureKey;

	}

void CCaptureKeys::removeCaptureKey(TUint aIndex)

//

// Removes the capture-key at the given aIndex from the list

//

	{

	iCKarray.Remove(aIndex);

	}

EXPORT_C void CCaptureKeys::CancelCaptureKey(TUint32 aHandle)

//

// Removes the first capture-key from the list that matches the handle;

//

	{

	TCaptureKey ck;

	ck.iHandle=aHandle;

	TInt r=iCKarray.Find(ck);

	if (r>=0)

		iCKarray.Remove(r);

	}

EXPORT_C void CCaptureKeys::CancelAllCaptureKeys(TUint32 aApp)

//

// Removes all capture-keys from the list that match the given application handle

//

	{

	TInt i=iCKarray.Count();

	while(--i>=0)

		{

		if (iCKarray[i].iApp==aApp)

			iCKarray.Remove(i);

		}

	}

EXPORT_C void CCaptureKeys::ProcessCaptureKeys(TKeyData& aKeyData) const

//

// Sets aKeyData.iIsCaptureKey to true if the given aKeyCode match a capture-key in the list

// and sets aKeyData.iApp to the handle of the last application that set it; 

// otherwise sets aKeyData.iIsCaptureKey to false and aKeyData.iApp to 0.

//

	{

	TCharExtended ch=aKeyData.iKeyCode;

	aKeyData.iIsCaptureKey=EFalse;

	aKeyData.iApp = 0x0;

	TInt c=iCKarray.Count();

	TInt i;

	TInt priority=KMinTInt;

	for (i=0; i<c; i++)

		{

		const TCaptureKey& ck=iCKarray[i];

		if	( ch.MatchesPattern(ck.iKeyCodePattern) && MatchesMaskedValue(aKeyData.iModifiers, ck.iModifiers) )

			{

			if(ck.iKeyCodePattern.iFiller>priority)

				{

				priority=ck.iKeyCodePattern.iFiller;

				aKeyData.iApp=ck.iApp;

				aKeyData.iHandle=ck.iHandle;

				aKeyData.iIsCaptureKey=ETrue;

				}

			}

		}

	}