/*

* 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_CHROME_WIDGET_H_

#define _GINEBRA_CHROME_WIDGET_H_

#include <QtGui>

#include <QMap>

#include <QPainterPath>

//#include "chromerenderer.h"

//#define G_QUICKSTART

class QWebPage;

class ChromeSnippet;

class QNetworkAccessManager;

class QWebView;

class QWebFrame;

class QNetworkReply;

class ChromeView;

class QGraphicsScene;

class QTimeLine;

/**

 * \brief Manages chrome snippets.

 * 

 * The ChromeWidget class manages the snippets that comprise the "chrome" of 

 * the browser and the underlying web page that renders the snippets. 

 * 

 * \sa ChromeSnippet

 */

class ChromeWidget : public QObject

{

    Q_OBJECT

typedef enum {

  minimized,

  maximized

} Visibility;

public:

    friend class ChromeRenderer;

    ChromeWidget(ChromeView *parentChromeView, QGraphicsItem *parent, const QString &jsName);

    ~ChromeWidget();

    void setChromeUrl(QString url);

    QString chromeUrl() const { return m_chromeUrl; }

    QWebPage * chromePage() { return m_chromePage; }

    void setContentPage(QWebPage * p);

#ifdef Q_OS_SYMBIAN

    QPixmap * buffer();

#else

    QImage* buffer();

#endif

    QPainter* painter();

    void setGeometry(const QRect &rect);

    void setGeometry(int x, int y, int w, int h) { setGeometry(QRect(x, y, w, h)); }

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

    void getInitialChrome();

    void show(const QString& id, int x, int y);

    void show(const QString& id);

    void hide(const QString& id);

    void setLocation(const QString& id, int x, int y);

    void setAnchor(const QString& id, const QString& anchor);

    void toggleVisibility(const QString& id);

    void toggleAttention(const QString& id);

    void setVisibilityAnimator(const QString& elementId, const QString & animatorName);

    void setAttentionAnimator(const QString& elementId, const QString & animatorName);

    QString getDisplayMode();

    // Returns the javascript object that represents this object.

	QObject *jsObject();

    //returns the parent chrome view

    ChromeView* getChromeView() { return m_parentChromeView; }

signals:

    void delegateLink(const QUrl& url);

    void loadStarted();

    void loadComplete();

    void dragStarted();

    void dragFinished();

    void viewPortResize(QRect);

public slots:

    void updateViewPort();

    void setViewPort(QRect viewPort);

    void repaintRequested(QRect dirtyRect);

protected slots:

    void frameCreated(QWebFrame* frame);

    void loadFinished(bool ok = true);

    void onLoadStarted();

    void networkRequestFinished(QNetworkReply *);

    void debugAlert(const QString &msg);

public:

    QSize getDocElementSize(const QString &id);

    QRect getDocElementRect(const QString &id);

    void updateChildGeometries();

    void dump();

protected:

    QVariant getDocElement(const QString &id);

    QString getDocElementAttribute(const QString &id, const QString &attribute);

    QVariant getDocIdsByName(const QString &name);

    QVariant getDocIdsByClassName(const QString &name);

    QVariant getChildIdsByClassName(const QString &parentId, const QString &name);

    void resizeBuffer();

    void updateOwnerAreas();

    bool eventFilter(QObject *object, QEvent *event);

    void paintDirtyRegion();

    // Get the snippet that contains the point pos.

    ChromeSnippet *getSnippet(QPoint pos) const;

    //Reconstruct snippets from the cache

    bool isCached(QString url);

    void cacheBuffer();

    void restoreBuffer();

protected:

    //This is the web page that renders the chrome

    QWebPage *m_chromePage;

private:

    QGraphicsItem *m_parentItem;

    ChromeView *m_parentChromeView;

    QMap<QString, ChromeSnippet *> m_snippetMap;

    QString m_chromeUrl;

    Visibility m_state;

#ifdef Q_OS_SYMBIAN

    QPixmap *m_buffer;

#else

    QImage *m_buffer;

#endif

    QPainter *m_painter;

    QRegion m_dirtyRegion;

    QTimer *m_dirtyTimer;

    class ChromeWidgetJSObject *m_jsObject;  // owned

#ifdef G_QUICKSTART

    bool m_bufferCached;

    QString m_bufferFile;

    ChromeSnippet* m_fakeTopSnippet;

    ChromeSnippet* m_fakeBottomSnippet;

#endif

};

#endif