// Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).+
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// All rights reserved.+
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// This component and the accompanying materials are made available+
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// under the terms of the License "Eclipse Public License v1.0"+
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// which accompanies this distribution, and is available+
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".+
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//+
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// Initial Contributors:+
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// Nokia Corporation - initial contribution.+
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//+
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// Contributors:+
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//+
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// Description:+
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// e32\ewsrv\ky_capt.cpp+
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// Provides the operations of setting and cancelling capture-keys+
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// +
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//+
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+
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#include <e32svr.h>+
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#include <k32keys.h>+
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+
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const TInt KCaptureKeyArrayGranularity=5;+
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+
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EXPORT_C CCaptureKeys::CCaptureKeys()+
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	: iCKarray(KCaptureKeyArrayGranularity, _FOFF(TCaptureKey,iHandle))+
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	{+
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	}+
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+
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EXPORT_C void CCaptureKeys::Construct()+
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//+
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//+
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//+
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	{+
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	}+
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+
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EXPORT_C CCaptureKeys::~CCaptureKeys()+
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//+
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// Destructor+
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//+
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	{+
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	iCKarray.Close();+
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	}+
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+
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void CCaptureKeys::CheckCaptureKey(const TCaptureKey& aCaptureKey)+
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	{+
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+
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	if ((aCaptureKey.iModifiers.iValue&~aCaptureKey.iModifiers.iMask)!=0)+
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		User::Leave(KErrArgument);+
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	}+
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+
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EXPORT_C void CCaptureKeys::AddCaptureKeyL(const TCaptureKey& aCaptureKey)+
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//+
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// Adds the specified capture-key to the list+
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//+
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	{+
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+
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	AddCaptureKeyL(aCaptureKey,0);+
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	}+
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+
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EXPORT_C void CCaptureKeys::AddCaptureKeyL(const TCaptureKey& aCaptureKey, TUint8 aPriority)+
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//+
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// Adds the specified capture-key to the beginning of the list+
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//+
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	{+
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+
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	TCaptureKey captureKey(aCaptureKey);+
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	captureKey.iKeyCodePattern.iFiller = aPriority;// Priority is stored in spare data member 'iFiller'+
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	CheckCaptureKey(captureKey);+
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	User::LeaveIfError(iCKarray.Insert(captureKey,0));+
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	}+
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+
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EXPORT_C void CCaptureKeys::SetCaptureKey(TUint32 aHandle, const TCaptureKey& aCaptureKey)+
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//+
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// Finds the first capture-key from the list that matches the handle and sets+
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// it to the new value.+
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//+
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	{+
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+
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	SetCaptureKey(aHandle,aCaptureKey,0);+
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	}+
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+
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EXPORT_C void CCaptureKeys::SetCaptureKey(TUint32 aHandle, const TCaptureKey& aCaptureKey, TUint8 aPriority)+
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//+
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// Finds the first capture-key from the list that matches the handle and sets+
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// it to the new value.+
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//+
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	{+
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+
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	TCaptureKey captureKey(aCaptureKey);+
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	captureKey.iKeyCodePattern.iFiller = aPriority;// Priority is stored in spare data member 'iFiller'+
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	CheckCaptureKey(captureKey);+
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	TCaptureKey ck;+
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	ck.iHandle=aHandle;+
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	TInt r=iCKarray.Find(ck);+
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	if (r>=0)+
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		iCKarray[r]=captureKey;+
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	}+
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+
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void CCaptureKeys::removeCaptureKey(TUint aIndex)+
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//+
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// Removes the capture-key at the given aIndex from the list+
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//+
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	{+
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+
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	iCKarray.Remove(aIndex);+
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	}+
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+
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EXPORT_C void CCaptureKeys::CancelCaptureKey(TUint32 aHandle)+
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//+
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// Removes the first capture-key from the list that matches the handle;+
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//+
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	{+
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+
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	TCaptureKey ck;+
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	ck.iHandle=aHandle;+
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	TInt r=iCKarray.Find(ck);+
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	if (r>=0)+
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		iCKarray.Remove(r);+
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	}+
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+
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EXPORT_C void CCaptureKeys::CancelAllCaptureKeys(TUint32 aApp)+
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//+
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// Removes all capture-keys from the list that match the given application handle+
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//+
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	{+
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+
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	TInt i=iCKarray.Count();+
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	while(--i>=0)+
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		{+
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		if (iCKarray[i].iApp==aApp)+
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			iCKarray.Remove(i);+
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		}+
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	}+
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+
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EXPORT_C void CCaptureKeys::ProcessCaptureKeys(TKeyData& aKeyData) const+
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//+
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// Sets aKeyData.iIsCaptureKey to true if the given aKeyCode match a capture-key in the list+
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// and sets aKeyData.iApp to the handle of the last application that set it; +
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// otherwise sets aKeyData.iIsCaptureKey to false and aKeyData.iApp to 0.+
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//+
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	{+
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+
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	TCharExtended ch=aKeyData.iKeyCode;+
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	aKeyData.iIsCaptureKey=EFalse;+
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	aKeyData.iApp = 0x0;+
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	TInt c=iCKarray.Count();+
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	TInt i;+
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	TInt priority=KMinTInt;+
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	for (i=0; i<c; i++)+
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		{+
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		const TCaptureKey& ck=iCKarray[i];+
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		if	( ch.MatchesPattern(ck.iKeyCodePattern) && MatchesMaskedValue(aKeyData.iModifiers, ck.iModifiers) )+
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			{+
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			if(ck.iKeyCodePattern.iFiller>priority)+
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				{+
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				priority=ck.iKeyCodePattern.iFiller;+
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				aKeyData.iApp=ck.iApp;+
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				aKeyData.iHandle=ck.iHandle;+
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				aKeyData.iIsCaptureKey=ETrue;+
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				}+
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			}+
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		}+
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	}+
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+
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