camerauis/cameraxui/cxui/src/cxuicapturekeyhandler.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 16 Apr 2010 14:51:30 +0300
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Revision: 201011 Kit: 201015
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/*
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* Copyright (c) 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 "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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*
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*/
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#include <w32std.h>
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#include <QVariant>
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#include <QKeyEvent>
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#include <eikon.hrh>
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#include <coemain.h>
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#include <e32keys.h> // for EKeyCamera
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#include "cxuicapturekeyhandler.h"
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#include "cxutils.h"
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#include "cxeengine.h"
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#include "cxenamespace.h"
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#include "cxefeaturemanager.h"
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const int CXUI_KEY_PRIORITY = 100;
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CxuiCaptureKeyHandler::CxuiCaptureKeyHandler(CxeEngine &aEngine) :
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    mAutofocusKeyPressed(false), mCaptureKeyPressed(false), mEngine(aEngine), mWsSession(CCoeEnv::Static()->WsSession()),
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    mWindowGroup(CCoeEnv::Static()->RootWin())
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    // Autofocus key
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    mEngine.featureManager().configuredValues(CxeRuntimeKeys::PRIMARY_CAMERA_AUTOFOCUS_KEYS,
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                                              mPrimaryCameraAutofocusKeys);
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    // Capture keys for primary camera
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    mEngine.featureManager().configuredValues(CxeRuntimeKeys::PRIMARY_CAMERA_CAPTURE_KEYS,
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                                              mPrimaryCameraCaptureKeys);
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    int scanCode = 0;
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    int handle = 0;
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    foreach (scanCode, mPrimaryCameraAutofocusKeys) {
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        handle = mWindowGroup.CaptureKeyUpAndDowns(scanCode, 0, 0, CXUI_KEY_PRIORITY);
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        mCapturedKeyUpDownHandles.append(handle);
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    }
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    foreach (scanCode, mPrimaryCameraCaptureKeys) {
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        handle = mWindowGroup.CaptureKeyUpAndDowns(scanCode, 0, 0, CXUI_KEY_PRIORITY);
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        mCapturedKeyUpDownHandles.append(handle);
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    }
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    // Capture key press events... this is done only to make sure other
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    // applications do not react to camera key events.
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    handle = mWindowGroup.CaptureKey(EKeyCamera, 0, 0, CXUI_KEY_PRIORITY);
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    mCapturedKeyHandles.append(handle);
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    CX_DEBUG_EXIT_FUNCTION();
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}
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CxuiCaptureKeyHandler::~CxuiCaptureKeyHandler()
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    int handle = 0;
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    foreach (handle, mCapturedKeyUpDownHandles) {
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        mWindowGroup.CancelCaptureKeyUpAndDowns(handle);
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    }
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    foreach (handle, mCapturedKeyHandles) {
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        mWindowGroup.CancelCaptureKey(handle);
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    }
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    CX_DEBUG_EXIT_FUNCTION();
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}
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bool CxuiCaptureKeyHandler::isAutofocusKeyPressed()
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{
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    return mAutofocusKeyPressed;
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}
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bool CxuiCaptureKeyHandler::isCaptureKeyPressed()
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{
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    return mCaptureKeyPressed;
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}
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bool CxuiCaptureKeyHandler::handleKeyEvent(QEvent *event)
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    bool eventWasConsumed = false;
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    if (event->type() == QEvent::KeyPress) {
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        QKeyEvent *keyEvent = static_cast<QKeyEvent*> (event);
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        if ( mPrimaryCameraAutofocusKeys.contains(keyEvent->nativeScanCode())
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            && !mAutofocusKeyPressed ) {
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            mAutofocusKeyPressed = true;
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            eventWasConsumed = true;
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            emit autofocusKeyPressed();
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        } else if (mPrimaryCameraCaptureKeys.contains(keyEvent->nativeScanCode())
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            && !mCaptureKeyPressed) {
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            mCaptureKeyPressed = true;
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            eventWasConsumed = true;
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            emit captureKeyPressed();
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        }
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    } else if (event->type() == QEvent::KeyRelease) {
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        QKeyEvent *keyEvent = static_cast<QKeyEvent*> (event);
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parents:
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   113
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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        if ( mPrimaryCameraAutofocusKeys.contains(keyEvent->nativeScanCode())
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parents:
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   115
            && mAutofocusKeyPressed ) {
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parents:
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   116
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            mAutofocusKeyPressed = false;
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            eventWasConsumed = true;
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parents:
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            emit autofocusKeyReleased();
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parents:
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   120
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parents:
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   121
        } else if (mPrimaryCameraCaptureKeys.contains(keyEvent->nativeScanCode())
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parents:
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            && mCaptureKeyPressed) {
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parents:
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   123
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parents:
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            mCaptureKeyPressed = false;
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parents:
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            eventWasConsumed = true;
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parents:
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   126
            emit captureKeyReleased();
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parents:
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   127
        }
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parents:
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    }
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parents:
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    CX_DEBUG_EXIT_FUNCTION();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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    return eventWasConsumed;
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parents:
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   131
}