/*

* 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_CHROMEWIDGET_H__

#define __GINEBRA_CHROMEWIDGET_H__

#include "BWFGlobal.h"

#include <QMap>

#include <QtGui>

//#include <QtScript>

#include "wrtbrowsercontainer.h"

#include "GreenChromeSnippet.h"

#include "ViewController.h"

class QWebPage;

class QPixmap;

class MostVisitedPageStore;

class ControllableViewBase;

class QGraphicsSceneContextMenuEvent;

using namespace WRT;

namespace GVA {

  class AppContentView;

  class ChromeSnippet;

  class ChromeDOM;

  class ChromeRenderer;

  class GinebraApplication;

  class ViewController;

  class Snippets;

  //  class CollapsingWidget;

  class SlidingWidget;

  class ChromeWidgetJSObject;

  class LocaleDelegate;

  class DeviceDelegate;

  class Downloads;

  enum ChromeAnchor

  {

    anchorNone,

    anchorCenter,

    anchorTop,

    anchorBottom,

    anchorLeft,

    anchorRight,

    anchorTopLeft,

    anchorTopRight,

    anchorBottomLeft,

    anchorBottomRight

  };

  enum Aspect

  {

    portrait,

    landscape

  };

  class ChromeWidget : public QGraphicsWidget

  {

  Q_OBJECT

  public:

    ChromeWidget(QGraphicsItem * parent = 0, Qt::WindowFlags wFlags = 0);

    virtual ~ChromeWidget();

    void setChromeBaseDirectory(const QString dir);

    void setChromeFile(const QString file);

    void addView(ControllableViewBase * controllableView);

    QGraphicsScene * getScene() { return m_scene; } //NB: change name to scene() !!

    ChromeRenderer * renderer() { return m_renderer; }

    ChromeDOM * dom() { return m_dom; }

    QRect getSnippetRect(const QString &docElementId);

    ChromeSnippet * getSnippet(const QString & docElementId, QGraphicsItem * parent = 0);

    //  QScriptValue evalWithEngineContext(const QString& program);

    ControllableViewBase * getView(const QString& name);

    void showView(const QString &name);

    QWebPage * page() { return m_page; }

    void anchorSnippet(ChromeSnippet * snippet);

    //NB: get rid of this (see comment in .cpp)!!!

    void adjustAnchorOffset(ChromeSnippet * snippet, qreal delta);

    void anchorToView(ChromeSnippet* snippet, const QString & where = "top");

    void detachFromView(ChromeSnippet* snippet, const QString & where = "top");

    void anchorTogether(ChromeSnippet* first, const QString &  secondId, qreal x = 0, qreal y = 0);

    void unAnchor(ChromeSnippet* first);

    //void paint(QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget* widget = 0);

    QGraphicsView *graphicsView() { return m_view; }

    void dump();

    QString getBaseDirectory() const { return m_baseDirectory; }

    ViewController * viewController() { return m_viewController; } // needed for UrlSearchSnippet

    QString currentView() {return m_viewController->currentView()->type() ;}

  public slots: //NB: Many of these should not be exported to JS, so a separate a JS delegate would be better

    int width(){return (int)size().width();}

    void snippetShown(ChromeSnippet * snippet); 

    void snippetHiding(ChromeSnippet * snippet);

    void loadStarted();

    void loadFinished(bool ok);

    void exportJSObjects();

    void exportJSObjectsToPage(QWebPage *page);

    void alert(const QString & msg);

    qreal slideView(qreal delta);

    void onViewInstantiated(ControllableViewBase *view);

    void onCurrentViewChanged();

    void chromeInitialized();

    void reloadChrome();

    void loadUrlToCurrentPage(const QUrl & url);

    void pageCreated(WRT::WrtBrowserContainer * page);

  signals:

    void internalChromeComplete();

    void chromeComplete();

    void aspectChanged(int aspect);

    void prepareForGeometryChange();

    //NB: This should be symbian ifdef'd but that would require symbian-specific chrome

    void symbianCarriageReturn();

  public:

    Q_PROPERTY(QObjectList snippets READ getSnippets)

    QObjectList getSnippets();

    /// \brief Returns either "portrait" or "landscape".

    QString getDisplayMode() const;

    Q_PROPERTY(QString displayMode READ getDisplayMode)

    QObject* getDisplaySize() const;

    Q_PROPERTY(QObject* displaySize READ getDisplaySize)

  protected:

    virtual void resizeEvent(QGraphicsSceneResizeEvent *ev);

    virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent* event);

    //bool eventFilter(QObject *obj, QEvent *ev);

  private:

    void addSnippet( ChromeSnippet * snippet, const QString & docElementId);

    void getInitialSnippets();

    void clearChrome();

    void addAnchors();

    void addJSObjectToWindow(QObject *object);

    void addJSObjectToPage(QObject *object, QWebPage *page);

    void updateMVGeometry();

    void addViewToLayout(ControllableViewBase * controllableView);

    //void addJSObjectToEngine(QObject *object);

    QGraphicsScene * m_scene;

    QGraphicsView *m_view;

    QGraphicsAnchorLayout *m_layout;

    QString m_baseDirectory;

    QWebPage * m_page;

    ChromeRenderer * m_renderer;

    ChromeDOM * m_dom;

    Snippets * m_snippets;

    ViewController *m_viewController;

    AppContentView * m_appView;

    QList<QObject*> m_jsObjects;

    //QScriptEngine m_engine;

    QGraphicsAnchorLayout *m_viewLayout;

    SlidingWidget *m_viewPort;

    QGraphicsWidget *m_topBar;

    QGraphicsWidget *m_bottomBar;

    QGraphicsWidget *m_leftBar;

    QGraphicsWidget *m_rightBar;

    //CollapsingWidget *m_viewBar;

    GinebraApplication *m_app;

    Aspect m_aspect;

    ChromeWidgetJSObject *m_jsObject;

    LocaleDelegate *m_localeDelegate; // Owned

    DeviceDelegate *m_deviceDelegate;

    Downloads * m_downloads; // Owned

  };

} // end of namespace GVA

Q_DECLARE_METATYPE(QObjectList)

#endif // __GINEBRA_CHROMEWIDGET_H__