homescreenapp/stateplugins/hshomescreenstateplugin/src/hswallpaperselectionstate.cpp
author hgs
Mon, 18 Oct 2010 10:20:15 +0300
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parent 90 3ac3aaebaee5
permissions -rw-r--r--
201041
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/*
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* Copyright (c) 2010 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 "hswallpaperselectionstate.h"
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#include "hsspinnerdialog.h"
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#include "hsscene.h"
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#include "hspage.h"
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#include "hswallpaper.h"
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#include "hsconfiguration.h"
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#include "hssystemevents.h"
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#include <QDebug>
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#ifdef Q_OS_SYMBIAN
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#include "hsimagehandlingclient.h"
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#else
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#include "xqaiwgetimageclient.h"
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#endif
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// Helper macros for connecting state entry and exit actions.
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#define ENTRY_ACTION(state, action) \
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    connect(state, SIGNAL(entered()), SLOT(action()));
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#define EXIT_ACTION(state, action) \
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    connect(state, SIGNAL(exited()), SLOT(action()));
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/*!
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    \class HsWallpaperSelectionState
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    \ingroup group_hshomescreenstateplugin
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    \brief 
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*/
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/*!
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*/
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HsWallpaperSelectionState::HsWallpaperSelectionState(QState *parent)
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  : QState(parent),    
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    mImageHandler(0),
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    mWallpaper(0),    
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    mWaitDialog(0)
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{
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    setupStates();
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}
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/*!
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*/
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HsWallpaperSelectionState::~HsWallpaperSelectionState()
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{
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}
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/*!
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*/
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void HsWallpaperSelectionState::setupStates()
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{
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    // States
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    QState *state_processing = new QState(this);
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    QState *state_selectingImage = new QState(state_processing);
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    QState *state_editingImage = new QState(state_processing);
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    QState *state_assigningImage = new QState(state_processing);
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    QState *state_errorMessage = new QState(this);
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    setInitialState(state_processing);
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    state_processing->setInitialState(state_selectingImage);
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    // Transitions
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#if defined (Q_OS_SYMBIAN) && !defined (__WINSCW__)
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    state_selectingImage->addTransition(
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        this, SIGNAL(event_assignImage()), state_editingImage);           
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#else
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    state_selectingImage->addTransition(
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        this, SIGNAL(event_assignImage()), state_assigningImage);
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#endif // Q_OS_SYMBIAN
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    state_processing->addTransition(
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        this, SIGNAL(event_error()), state_errorMessage);
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    // Actions
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    ENTRY_ACTION(state_selectingImage, action_selectingImage_start)
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    EXIT_ACTION(state_selectingImage, action_imageHandler_cleanup)
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    ENTRY_ACTION(state_editingImage, action_editingImage_start)
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    EXIT_ACTION(state_editingImage, action_imageHandler_cleanup)
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    ENTRY_ACTION(state_assigningImage, action_assigningImage_showWaitDialog)
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    ENTRY_ACTION(state_assigningImage, action_assigningImage_start)
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    EXIT_ACTION(state_assigningImage, action_assigningImage_cleanup)
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    EXIT_ACTION(state_assigningImage, action_assigningImage_hideWaitDialog)
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    ENTRY_ACTION(state_errorMessage, action_errorMessage_show)
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}
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/*!
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*/
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void HsWallpaperSelectionState::action_selectingImage_start()
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{
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    mImageHandler = new HsImageHandlingClient;
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#else    
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    mImageHandler = new XQAIWGetImageClient;
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#endif
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    connect(mImageHandler, SIGNAL(fetchCompleted(const QString&)),
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            this, SLOT(onFetchCompleted(const QString&)));
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    connect(mImageHandler, SIGNAL(fetchFailed(int, const QString&)),
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            this, SLOT(onFetchFailed(int, const QString&)));
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    // Qt::QueuedConnection due to different event loop -> we use deleteLater
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    connect(HsSystemEvents::instance(), SIGNAL(homeKeyClicked()),
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            SIGNAL(event_waitInput()), Qt::QueuedConnection);  
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    mImageHandler->fetch();
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}
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/*!
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*/
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void HsWallpaperSelectionState::action_imageHandler_cleanup()
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{
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    mImageHandler->disconnect(this);
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    mImageHandler->deleteLater();
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    mImageHandler = 0;
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}
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/*!
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*/
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void HsWallpaperSelectionState::action_assigningImage_showWaitDialog()
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{
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    mWaitDialog = new HsSpinnerDialog;
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    mWaitDialog->start();
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}
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/*!
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*/
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void HsWallpaperSelectionState::action_assigningImage_start()
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{
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    HsScene *scene = HsScene::instance();
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    if (HSCONFIGURATION_GET(sceneType) == HsConfiguration::SceneWallpaper) {
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        mWallpaper = scene->wallpaper();
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    } else {
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        mWallpaper = scene->activePage()->wallpaper();
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    }
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    connect(mWallpaper, SIGNAL(imageSet()), SLOT(onImageSet()));
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    connect(mWallpaper, SIGNAL(imageSetFailed()), SLOT(onImageSetFailed()));
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    mWallpaper->setImage(mImagePath);
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}
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/*!
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*/
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void HsWallpaperSelectionState::action_assigningImage_cleanup()
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{
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    mWallpaper->disconnect(this);
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    mWallpaper = 0;
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}
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/*!
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*/
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void HsWallpaperSelectionState::action_assigningImage_hideWaitDialog()
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{
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    mWaitDialog->stop();
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    mWaitDialog = 0;
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}
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/*!
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*/
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void HsWallpaperSelectionState::action_errorMessage_show()
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{
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    // TODO: Waiting for UX decision.
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    emit event_waitInput();
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}
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#ifdef COVERAGE_MEASUREMENT
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#pragma CTC SKIP
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#endif //COVERAGE_MEASUREMENT
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/*!
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*/
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void HsWallpaperSelectionState::action_editingImage_start()
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{
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#ifdef Q_OS_SYMBIAN    
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    mImageHandler = new HsImageHandlingClient; 
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    connect(mImageHandler, SIGNAL(editorCompleted()),
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            this, SLOT(onEditorCompleted()));
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    connect(mImageHandler, SIGNAL(editorFailed(int, const QString&)),
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            this, SLOT(onFetchFailed(int, const QString&)));
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    connect(HsSystemEvents::instance(), SIGNAL(homeKeyClicked()),
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            SIGNAL(event_waitInput()), Qt::QueuedConnection);  
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    mImageHandler->edit(mImagePath);
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#endif //Q_OS_SYMBIAN
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}
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#ifdef COVERAGE_MEASUREMENT
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#pragma CTC ENDSKIP
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#endif //COVERAGE_MEASUREMENT
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/*!
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*/
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void HsWallpaperSelectionState::onFetchCompleted(const QString &imagePath)
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{
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    mImagePath = imagePath;
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    emit event_assignImage();
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}
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/*!
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*/
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void HsWallpaperSelectionState::onFetchFailed(int errorCode, const QString &errorMessage)
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{
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    Q_UNUSED(errorCode)
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    Q_UNUSED(errorMessage)
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    emit event_error();
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}
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/*!
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*/
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void HsWallpaperSelectionState::onImageSet()
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{
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    emit event_waitInput();
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}
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/*!
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*/
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void HsWallpaperSelectionState::onImageSetFailed()
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{
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    emit event_error();
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}
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#ifdef COVERAGE_MEASUREMENT
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#pragma CTC SKIP
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#endif //COVERAGE_MEASUREMENT
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/*!
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*/
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void HsWallpaperSelectionState::onEditorCompleted()
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{    
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    emit event_waitInput();
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}
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#ifdef COVERAGE_MEASUREMENT
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#pragma CTC ENDSKIP
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#endif //COVERAGE_MEASUREMENT