mguardkeycapture.cpp,v

symbian s60手机上的短信拦截源代码。

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1.3
date	2007.08.22.11.15.36;	author administrator;	state Exp;
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filename	@MGuardKeyCapture.cpp@;

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@capture left arrow key only
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text
@/*
* ============================================================================
*  Name     :  MGuardKeyCapture.cpp
*  Part of  :  MGuard
*  Created  :  July 21 by xueyw
*  Description:
*  Copyright: 
* ============================================================================
*/


//  Include Files  

#include "MGuardKeyCapture.h"
#include <e32base.h>
#include <e32std.h>
#include <apgwgnam.h>           // CApaWindowGroupName
#include <aknkeylock.h> 
#include <apacmdln.h>
#include <eikdll.h>


// Capture KNumberOfPressesToCapture key presses
const TInt KNumberOfPressesToCapture = 3;


////////////////////////////////////
// CGuardKeyCapturer
////////////////////////////////////

// Constructor
//	CGuardKeyCapturer CGuardKeyCapturer::iKeyCapture;

CGuardKeyCapturer::CGuardKeyCapturer() :CActive( EPriorityNormal )
{
	iCaptureStarted = EFalse;
	iCapturePending = EFalse;
	iCaptureHandleCount = 0;
	
		// Connect to the window server
	User::LeaveIfError( iWsSession.Connect() );
	// Create an invisible window group. Well, we'll make it invisible later
	/** @@todo Can ELeave be used with R-classes? */
	iWindowGroup = new (ELeave) RWindowGroup ( iWsSession );
	// @@see RBlankWindow::Construct
	iWindowGroup->Construct( (TUint32)iWindowGroup, EFalse );

}

// Destructor
CGuardKeyCapturer::~CGuardKeyCapturer()
{
	delete iWindowGroupName;
	delete iWindowGroup;
	iWsSession.Close();
}

// Cancel listening to key presses
void CGuardKeyCapturer::DoCancel()
{
	for ( TInt aIndex = 0; aIndex < iCaptureHandleCount; aIndex ++ )
	{
		iWindowGroup->CancelCaptureKey( iCaptureHandle[ aIndex ] );
	}
	
	RAknKeyLock keyLock; // first step

	//	Lock keyboard
	User::LeaveIfError(keyLock.Connect());  // second step
	CleanupClosePushL(keyLock);

	keyLock.DisableKeyLock(); // third step

	keyLock.Close(); // fourth step
	CleanupStack::PopAndDestroy(); // keyLock

}


void CGuardKeyCapturer::StopCapturingL()
{
	for ( TInt aIndex = 0; aIndex < iCaptureHandleCount; aIndex ++ )
	{
		iWindowGroup->CancelCaptureKey( iCaptureHandle[ aIndex ] );
	}

	
	RAknKeyLock keyLock; // first step

	//	Lock keyboard
	User::LeaveIfError(keyLock.Connect());  // second step
	CleanupClosePushL(keyLock);

	keyLock.DisableKeyLock(); // third step

	keyLock.Close(); // fourth step
	CleanupStack::PopAndDestroy(); // keyLock
		
	iCaptureHandleCount = 0;
	iCapturePending = ETrue;
}

void CGuardKeyCapturer::ResumeCapturingL()
{
	iCaptureHandleCount = 0;

	User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyLeftArrow , 0, 0 ) );
	iCaptureHandleCount ++;

	//////User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyRightArrow , 0, 0 ) );
	//////iCaptureHandleCount ++;

	//////User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyUpArrow , 0, 0 ) );
	//////iCaptureHandleCount ++;

	//////User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyDownArrow , 0, 0 ) );
	//////iCaptureHandleCount ++;

	//////User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyApplication0, 0, 0 ) );
	//////iCaptureHandleCount ++;

	//////User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyYes , 0, 0 ) );
	//////iCaptureHandleCount ++;

	//////User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyNo , 0, 0 ) );
	//////iCaptureHandleCount ++;

	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyNull , 0, 0 ) );
	//iCaptureHandleCount ++;
	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyBell , 0, 0 ) );	
	//iCaptureHandleCount ++;
	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyBackspace , 0, 0 ) );	
	//iCaptureHandleCount ++;
	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyTab , 0, 0 ) );	
	//iCaptureHandleCount ++;
	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyLineFeed , 0, 0 ) );
	//iCaptureHandleCount ++;
	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyVerticalTab , 0, 0 ) );	
	//iCaptureHandleCount ++;
	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyFormFeed , 0, 0 ) );	
	//iCaptureHandleCount ++;
	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyEnter , 0, 0 ) );	
	//iCaptureHandleCount ++;
	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyEscape , 0, 0 ) );
	//iCaptureHandleCount ++;
	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeySpace , 0, 0 ) );	
	//iCaptureHandleCount ++;
	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyBackspace , 0, 0 ) );	
	//iCaptureHandleCount ++;
	//User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyDelete , 0, 0 ) );	
	//iCaptureHandleCount ++;
	//
	//for ( TInt aCode = EKeyPrintScreen; aCode < EKeyDecBrightness; aCode ++ )
	//{
	//	User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( aCode , 0, 0 ) );
	//	iCaptureHandleCount ++;
	//}

	iCapturePending = EFalse;	
	
	RAknKeyLock keyLock; // first step

	//	Start phone app
	_LIT(KPhoneAppPath, "\\system\\apps\\phone\\phone.app");
	{
		//	Open with the default/last known app
		CApaCommandLine * cmd = CApaCommandLine::NewL();        
		cmd->SetLibraryNameL( KPhoneAppPath );        
		cmd->SetCommandL( EApaCommandOpen );

		EikDll::StartAppL( *cmd );

		delete cmd;
	}

	//	Lock keyboard
	User::LeaveIfError(keyLock.Connect());  // second step
	CleanupClosePushL(keyLock);

	keyLock.EnableKeyLock(); // third step

	keyLock.Close(); // fourth step
	CleanupStack::PopAndDestroy(); // keyLock	
}

void CGuardKeyCapturer::StartCapturingL() 
{
	// You cannot just call CaptureLongKey for the same key code
	// You MUST call CaptureKey first

	iCaptureHandleCount = 0;

	User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyLeftArrow , 0, 0 ) );
	iCaptureHandleCount ++;

	//////User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyRightArrow , 0, 0 ) );
	//////iCaptureHandleCount ++;

	//////User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyUpArrow , 0, 0 ) );
	//////iCaptureHandleCount ++;

	//////User::LeaveIfError( iCaptureHandle[iCaptureHandleCount] = iWindowGroup->CaptureKey( EKeyDownArrow , 0, 0 ) );
	//////iCaptureHandleCount ++;