/*

* Copyright (c) 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 <w32std.h>

#include <QVariant>

#include <QKeyEvent>

#include <eikon.hrh>

#include <coemain.h>

#include <e32keys.h> // for EKeyCamera

#include "cxuicapturekeyhandler.h"

#include "cxutils.h"

#include "cxeengine.h"

#include "cxenamespace.h"

#include "cxefeaturemanager.h"

const int CXUI_KEY_PRIORITY = 100;

CxuiCaptureKeyHandler::CxuiCaptureKeyHandler(CxeEngine &aEngine) :

    mAutofocusKeyPressed(false), mCaptureKeyPressed(false), mEngine(aEngine), mWsSession(CCoeEnv::Static()->WsSession()),

    mWindowGroup(CCoeEnv::Static()->RootWin())

{

    CX_DEBUG_ENTER_FUNCTION();

    // Autofocus key

    mEngine.featureManager().configuredValues(CxeRuntimeKeys::PRIMARY_CAMERA_AUTOFOCUS_KEYS,

                                              mPrimaryCameraAutofocusKeys);

    // Capture keys for primary camera

    mEngine.featureManager().configuredValues(CxeRuntimeKeys::PRIMARY_CAMERA_CAPTURE_KEYS,

                                              mPrimaryCameraCaptureKeys);

    int scanCode = 0;

    int handle = 0;

    foreach (scanCode, mPrimaryCameraAutofocusKeys) {

        handle = mWindowGroup.CaptureKeyUpAndDowns(scanCode, 0, 0, CXUI_KEY_PRIORITY);

        mCapturedKeyUpDownHandles.append(handle);

    }

    foreach (scanCode, mPrimaryCameraCaptureKeys) {

        handle = mWindowGroup.CaptureKeyUpAndDowns(scanCode, 0, 0, CXUI_KEY_PRIORITY);

        mCapturedKeyUpDownHandles.append(handle);

    }

    // Capture key press events... this is done only to make sure other

    // applications do not react to camera key events.

    handle = mWindowGroup.CaptureKey(EKeyCamera, 0, 0, CXUI_KEY_PRIORITY);

    mCapturedKeyHandles.append(handle);

    CX_DEBUG_EXIT_FUNCTION();

}

CxuiCaptureKeyHandler::~CxuiCaptureKeyHandler()

{

    CX_DEBUG_ENTER_FUNCTION();

    int handle = 0;

    foreach (handle, mCapturedKeyUpDownHandles) {

        mWindowGroup.CancelCaptureKeyUpAndDowns(handle);

    }

    foreach (handle, mCapturedKeyHandles) {

        mWindowGroup.CancelCaptureKey(handle);

    }

    CX_DEBUG_EXIT_FUNCTION();

}

bool CxuiCaptureKeyHandler::isAutofocusKeyPressed()

{

    return mAutofocusKeyPressed;

}

bool CxuiCaptureKeyHandler::isCaptureKeyPressed()

{

    return mCaptureKeyPressed;

}

bool CxuiCaptureKeyHandler::handleKeyEvent(QEvent *event)

{

    CX_DEBUG_ENTER_FUNCTION();

    bool eventWasConsumed = false;

    if (event->type() == QEvent::KeyPress) {

        QKeyEvent *keyEvent = static_cast<QKeyEvent*> (event);

        if ( mPrimaryCameraAutofocusKeys.contains(keyEvent->nativeScanCode())

            && !mAutofocusKeyPressed ) {

            mAutofocusKeyPressed = true;

            eventWasConsumed = true;

            emit autofocusKeyPressed();

        } else if (mPrimaryCameraCaptureKeys.contains(keyEvent->nativeScanCode())

            && !mCaptureKeyPressed) {

            mCaptureKeyPressed = true;

            eventWasConsumed = true;

            emit captureKeyPressed();

        }

    } else if (event->type() == QEvent::KeyRelease) {

        QKeyEvent *keyEvent = static_cast<QKeyEvent*> (event);

        if ( mPrimaryCameraAutofocusKeys.contains(keyEvent->nativeScanCode())

            && mAutofocusKeyPressed ) {

            mAutofocusKeyPressed = false;

            eventWasConsumed = true;

            emit autofocusKeyReleased();

        } else if (mPrimaryCameraCaptureKeys.contains(keyEvent->nativeScanCode())

            && mCaptureKeyPressed) {

            mCaptureKeyPressed = false;

            eventWasConsumed = true;

            emit captureKeyReleased();

        }

    }

    CX_DEBUG_EXIT_FUNCTION();

    return eventWasConsumed;

}