/*

* Copyright (c) 2010 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: 

*

*/

#ifndef __GINEBRA_CONTENTTOOLBARCHROMEITEM_H

#define __GINEBRA_CONTENTTOOLBARCHROMEITEM_H

#include <QtGui>

#include "ToolbarChromeItem.h"

class QTimeLine;

class QTimer;

namespace GVA {

  class ToolbarFadeAnimator: public QObject

  {

    Q_OBJECT

    public:

      ToolbarFadeAnimator();

      ~ToolbarFadeAnimator();

      void start(bool visible);

      void stop();

    private slots:

      void valueChange(qreal step);

    Q_SIGNALS:

      void updateVisibility(qreal step);

      void finished();

    private:

      QTimeLine *m_timeLine;

  };

  class ContentToolbarChromeItem : public ToolbarChromeItem

  {

    Q_OBJECT

    enum  ContentToolbarState {

      CONTENT_TOOLBAR_STATE_FULL, 

      CONTENT_TOOLBAR_STATE_PARTIAL, 

      CONTENT_TOOLBAR_STATE_ANIM_TO_PARTIAL, 

      CONTENT_TOOLBAR_STATE_ANIM_TO_FULL, 

      CONTENT_TOOLBAR_STATE_INVALID 

    };

    enum ContentToolbarInactivityTimerState {

      CONTENT_TOOLBAR_INACTIVITY_TIMER_NONE,

      CONTENT_TOOLBAR_INACTIVITY_TIMER_ALLOWED

    };

/*

    typedef void (ContentToolbarChromeItem::*EnterFunctionType)(bool);

    typedef void (ContentToolbarChromeItem::*ExitFunctionType)();

    struct ContentToolbarState_t {

      EnterFunctionType enterFunc;

      ExitFunctionType exitFunc;

    };

*/

    public:

      ContentToolbarChromeItem(QGraphicsItem* parent = 0);

      virtual ~ContentToolbarChromeItem();

      virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* opt, QWidget* widget);

      virtual void setSnippet(WebChromeContainerSnippet * snippet);

    protected:

      virtual void resizeEvent(QGraphicsSceneResizeEvent * ev);

    private slots:

      void onChromeComplete(); 

      void onLoadStarted(); 

      void onLoadFinished(bool); 

      void onInactivityTimer();

      void onAnimFinished();

      void onUpdateVisibility(qreal);

      void onSnippetMouseEvent( QEvent::Type type);

      void onWebViewMouseEvents( QEvent::Type type);

      void onSnippetShow();

      void onSnippetHide();

      void onMVCloseComplete();

    private:

      void handleMousePress();

      void handleMouseRelease();

      void addFullBackground();

      void changeState( ContentToolbarState state, bool animate = false);

      void onStateEntry(ContentToolbarState state, bool animate);

      void onStateExit(ContentToolbarState state);

      void resetInactivityTimer();

      bool mvSnippetVisible();

      //void initStates(); 

      // State Enter and Exit functions

      void  stateEnterFull(bool);

      void  stateEnterPartial(bool animate=false);

      void  stateEnterAnimToPartial(bool animate =false);

      void  stateEnterAnimToFull(bool animate =false);

      ToolbarFadeAnimator * m_animator;

      QPainterPath* m_background;

      ChromeSnippet* m_middleSnippet;

      QTimer* m_inactivityTimer;

      qreal m_bgopacity;

      ContentToolbarState m_state;

      ContentToolbarInactivityTimerState m_inactiveTimerState;

      //ContentToolbarState_t m_states[10];

  };

} // end of namespace GVA

#endif // __GINEBRA_CONTENTTOOLBARCHROMEITEM_H