/*
* Copyright (c) 2009 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 NMVIEWERVIEW_H_
#define NMVIEWERVIEW_H_

#include <QPointer>

#include "nmbaseview.h"
#include "nmactionobserver.h"
#include "nmattachmentfetchobserver.h"

class QGraphicsLinearLayout;
class QWebPage;

class HbWidget;
class HbMainWindow;

class NmApplication;
class NmUiEngine;
class NmUiStartParam;
class NmMailViewerWK;
class NmMessage;
class NmBaseViewScrollArea;
class NmViewerViewNetManager;
class NmViewerHeader;
class NmMailViewerWK;
class NmUiDocumentLoader;
class NmOperation;
class HbProgressDialog;
class NmAttachmentListWidget;
class NmAttachmentManager;

class NmViewerView : public NmBaseView, public NmActionObserver, public NmAttachmentFetchObserver
{
    Q_OBJECT
public:
    explicit NmViewerView(
				NmApplication &application,
				NmUiStartParam* startParam,
				NmUiEngine &uiEngine,
				HbMainWindow *mainWindow,
            NmAttachmentManager &attaManager,
            bool toolbar = false,
				QGraphicsItem *parent = NULL);
    ~NmViewerView();
    void reloadViewContents(NmUiStartParam* startParam);
    NmUiViewId nmailViewId() const;
    NmMailViewerWK* webView();
    void viewReady();
    void aboutToExitView();
    
signals:
    void progressValueChanged(int index, int value);

public slots:
    void orientationChanged(Qt::Orientation orientation);
    void adjustViewDimensions();
    void linkClicked(const QUrl& link);
    void contentScrollPositionChanged(const QPointF &newPosition);
    void handleMouseReleaseEvent(QGraphicsSceneMouseEvent *event);
    void handleMousePressEvent(QGraphicsSceneMouseEvent *event);
    void fetchMessage();
    void openAttachment(int index);
	void createOptionsMenu();
	void deleteButton(HbAction* result);

private slots:
    void setMessageData();
    void messageFetched(int result);
    void waitNoteCancelled();
    void webFrameLoaded(bool loaded);
    void scaleWebViewWhenLoading(const QSize &size);
    void scaleWebViewWhenLoaded();
    void messageDeleted(const NmId &mailboxId, const NmId &folderId, const NmId &messageId);

public: // From NmActionObserver
    void handleActionCommand(NmActionResponse &menuResponse);

public: // From NmAttachmentFetchObserver
    void progressChanged(int value);
    void fetchCompleted(int result);

private:
    void loadMessage();
    void loadViewLayout();
    QString formatMessage();
    bool eventOnTopOfHeaderArea(QGraphicsSceneMouseEvent *event);
    void changeMessageReadStatus(bool read);
    void setMailboxName();
    void createToolBar();
    void setAttachmentList();

private:
    NmApplication &mApplication;
    NmUiEngine &mUiEngine;
    HbMainWindow *mMainWindow;               // Not owned
    NmAttachmentManager  &mAttaManager;
    bool mToolbarEnabled;					 // is toolbar or options menu in use
    NmMessage* mMessage;                     // Owned
    NmBaseViewScrollArea *mScrollArea;       // Not owned
    HbWidget *mViewerContent;                // Not owned
    NmMailViewerWK *mWebView;                // Not owned
    NmViewerHeader *mHeaderWidget;           // Not owned
    NmAttachmentListWidget *mAttaListWidget;  // Not owned
    QPointF mHeaderStartScenePos;
    QGraphicsLinearLayout *mViewerContentLayout; // Not owned
    QPointer<NmOperation> mMessageFetchingOperation;   // Not owned 
    QPointF mLatestScrollPos;
    bool mDisplayingPlainText;
    QObjectList mWidgetList;
    NmUiDocumentLoader *mDocumentLoader;
    HbWidget *mScrollAreaContents;
    HbWidget *mViewerHeaderContainer;
    QSize mScreenSize;
    HbProgressDialog *mWaitDialog;            // owned
    bool webFrameloadingCompleted;
    QSize mLatestLoadingSize;
    QList<NmId> mAttaIdList;
    int mAttaIndexUnderFetch;
    NmAttachmentListWidget *mAttaWidget;      // Not owned
    bool mViewReady;
    bool mWaitNoteCancelled;
};

#endif /* NMVIEWERVIEW_H_ */