/**

* Copyright (c) 2010 Sasken Communication Technologies Ltd.

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the "{License}"

* which accompanies  this distribution, and is available

* at the URL "{LicenseUrl}".

*

* Initial Contributors:

* Narasimhulu Kavadapu, Sasken Communication Technologies Ltd - Initial contribution

*

* Contributors:

*

* Description:

* Base class of All dialogs

*/

#ifndef FB_DIALOG_H_

#define FB_DIALOH_H_

#include <QDialog>

#include <QWebView>

#include <qprogressbar.h>

#include <qboxlayout.h>

#include "authAppConstants.h"

// FORWARD DECLARATIONS

class FBSession;

class FBError;

class QNetworkReply;

const QString KSuccessurl = "http://www.facebook.com/connect/login_success.html";

/**

  * The base Dialoggg

  */

class FBDialog : public QWidget

{

    Q_OBJECT

protected:

    /**

    * The session for which the login is taking place.

    */

    FBSession*	iSession;

    QWebView*	iWebView;

    QString	iLoadingUrl;

    bool        iIgnorePageLoadCompleteEvent;

    QProgressBar* progressbar;

    QVBoxLayout* layout;

signals:

    /**

     * Called when the dialog succeeds and is about to be dismissed.

     */

    void dialogDidSucceed ();

    /**

     * Called when the dialog is cancelled and is about to be dismissed.

     */

    void dialogDidCancel();

    /**

     * Called when dialog failed to load due to an error.

     */

    void dialogDidFailWithError ( const FBError& error );

private slots:

    void cancel();

    /* slots for signals from QWebView.page() */

    void linkClicked ( const QUrl & url );

    void loadStarted ();

    void loadProgress(int progress);

    void loadFinished ( bool ok );

    //Network Error Slots

    void slotAuthenticationRequired( QNetworkReply* reply, QAuthenticator* authenticator );

    void slotsslErrors( QNetworkReply* reply, const QList<QSslError>& errors  );

    void slotproxyAuthenticationRequired( const QNetworkProxy& proxy, QAuthenticator* authenticator  );

public:

	void proxysettings();

    /**

    * Creates the view but does not display it.

    */

    FBDialog(FBSession* aSession);

    FBDialog();

    /**

    * Displays the view with an animation.

    *

    * The view will be added to the top of the current key window.

    */

    void show();

    /** Displays the first page of the dialog.

     *

     * Do not ever call this directly.  It is intended to be overriden by subclasses.

     */

    virtual void load ();

    /**

     * Displays a URL in the dialog.

     */

    void loadURL(const QString& aUrl, QNetworkAccessManager::Operation aMethod, const QHash<QString, QString>& aGetParams,

                 const QHash<QString, QString>&  aPostParams);

    void dismiss(bool aAnimated);

    /**

     * Hides the view and notifies delegates of success or cancellation.

     */

    void dismissWithSuccess (bool aSuccess, bool aAnimated);

    /**

    * Hides the view and notifies delegates of an error.

    */

    void dismissWithError (const FBError& aError, bool aAnimated);

    /**

    * Subclasses may override to perform actions just prior to showing the dialog.

    */

    virtual void dialogWillAppear();

    /**

     * Subclasses may override to perform actions just after the dialog is hidden.

     */

    virtual void dialogWillDisappear();

    /**

     * Subclasses should override to process data returned from the server in a 'fbconnect' url.

     *

     * Implementations must call dismissWithSuccess:YES at some point to hide the dialog.

     */

    virtual void dialogDidSucceed(const QUrl& aUrl);

    QString title() const;

    void setTitle ( const QString& aTitle );

    virtual void GetSessionKey(const QUrl& aUrl);

    virtual void FetchKeyFromUrl(const QUrl& aUrl);

private:

    void createControls();

    QString generateURL( const QString& aUrl, const QHash<QString, QString>& aParams) const;

    QByteArray generatePostBody (const QHash<QString, QString>& aParams) const;

    void postDismissCleanup();

 };

#endif