/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbPlugins module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#ifndef _Virtual12Key_H

#define _Virtual12Key_H

#include <QPointer>

#include <hbinputabstractbase.h>

#include <hbinputvirtualrocker.h>

#include <hbinputvkbwidget.h>

class HbKeymap;

class QTimer;

class HbInputVkbWidget;

class HbInputThaiSpecialPopup;

class HbCandidateList;

class HbPredictionEngine;

class HbAction;

    // input mode handlers.

class HbInputModeHandler;

class HbInputPrediction12KeyHandler;

class HbInputBasic12KeyHandler;

class HbInputNumeric12KeyHandler;

class HbInputBasic12KeyThaiHandler;

class HbInputPrediction12KeyThaiHandler;

class HbVirtual12Key : public HbInputAbstractMethod

{

    Q_OBJECT

    enum {

        EFinger12Abc,

        EFinger12Sct,

        EFinger12Numeric

    };

public:

    HbVirtual12Key();

    ~HbVirtual12Key();

public: // From QInputContext

    QString identifierName();

    bool isComposing() const;

    QString language();

    void reset();

    void mouseHandler(int cursorPosition, QMouseEvent* event);

public: // From HbInputMethod

    void focusLost(bool focusSwitch);

    void focusReceived();

    void inputLanguageChanged(const HbInputLanguage &newLanguage);

    void inputStateActivated(const HbInputState& newState);

    int displaySpecialCharacterTable(QObject* receiver);

    bool filterEvent(const QEvent* event);

    void secondaryInputLanguageChanged(const HbInputLanguage &newLanguage);

public:

    void initializePredictiveMode();

    void closeCandidatePopup();

    void showAutoCompletionFieldCandidates();

    void initializeModeHandlers();

    bool isSctModeActive() const;

    HbInputVkbWidget::HbFlickDirection flickDirection() const;

    void launchCandidatePopup(const QStringList& candidates);

    void closeKeypad();

    void selectSpecialCharacterTableMode();

    void launchAutoCompletionPopup(const QStringList &candidates);

    void closeAutoCompletionPopup();

    void switchMode(int keyCode);

    void starKeySelected();

private:

    void openKeypad(HbInputVkbWidget * keypadToOpen,bool inMinimizedMode = false);

    void switchToAlphaMode(bool openAlphaInMinimizedMode = false);

    void setSpecialCharacters();

    void loadKeymap(const HbInputLanguage &newLanguage);

    bool usePrediction() const;

public slots:

    void keypadClosed();

    void keypadOpened();

    void keypadCloseEventDetected(HbInputVkbWidget::HbVkbCloseMethod vkbCloseMethod);

    void rockerDirection(int direction, HbInputVirtualRocker::RockerSelectionMode selectionMode);

    void orientationAboutToChange();

    void flickEvent(HbInputVkbWidget::HbFlickDirection direction);

    void mouseMovedOutOfButton();

    void smileySelected(QString smiley);

    void predictiveInputStateChanged(HbKeyboardSettingFlags keyboardType, bool newState);

private:

    // mCurrentKeypad contains currently active keypad, we dont need to have

    // anyother variables to tell us which is current keypad

    QPointer<HbInputVkbWidget> mCurrentKeypad;

    // contains itut keypad

    // contains sct keypad

    //Owned by the keymap factory

    const HbKeymap* mKeymap;

    bool mOrientationAboutToChange;

    // Owned

    HbCandidateList* mCandidatePopup;

    HbInputFocusObject* mCurrentlyFocused;

    // input mode handlers.

    HbInputModeHandler *mActiveModeHandler;

    HbInputPrediction12KeyHandler *mPredictionModeHandler;

    HbInputBasic12KeyHandler *mBasicModeHandler;

    HbInputNumeric12KeyHandler *mNumericModeHandler;

    QPointer<HbVkbHost> mVkbHost;

    bool mKeyboardChangeAlreadyInprogress;

};

#endif // _Virtual12Key_H

// End of file