/*

* Copyright (c) 2007-2008 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:  Class header for CWsfAppLauncher

*

*/

#ifndef C_WSFAPPLAUNCHER_H

#define C_WSFAPPLAUNCHER_H

#include <e32std.h> 

#include <w32std.h> 

class MWsfBrowserLaunchObserver;

class CRepository;

/**

* Browser launching states

*/

enum TWsfLaunchState

    {

    EIdle,

    EShuttingDown,

    EStartingUp,

    ECompleted,

    EFinished

    };

//  CLASS DEFINITION

/**

 * Class to manage browser launching and closure.

 *

 * @lib wsfmodel.lib

 * @since S60 5.0

 */

NONSHARABLE_CLASS( CWsfAppLauncher ): public CActive 

    {

    public: // Constuctors and destructors

        /**

        * Factory function.

        * @since S60 5.0

        * @return Class instance

        */

        IMPORT_C static CWsfAppLauncher* NewL();

        /**

        * Factory function.

        * @since S60 5.0

        * @return Class instance

        */

        IMPORT_C static CWsfAppLauncher* NewLC();

        /**

        * Destructor

        * @since S60 5.0

        */

        virtual ~CWsfAppLauncher();

    private: //Constuctors

        /**

        * Constructor

        * @since S60 5.0

        */

        CWsfAppLauncher();

        /**

        * Second-phase constructor

        * @since S60 5.0

        */

        void ConstructL();

    public: //New public functions

        /**

        * Launches Browser application asynchronously using selected iap

        * @since S60 5.0

        * @param aObserver Observer to be notified about launch completion

        * @param aIapId IAP id passed as a parameter

        */

        void LaunchBrowserL( MWsfBrowserLaunchObserver& aObserver, 

                             TUint aIapId );

        /**

        * Launches Browser application asynchronously using selected iap and 

        * user defined URL

        * @since S60 5.0

        * @param aObserver Observer to be notified about launch completion

        * @param aIapId IAP id passed as a parameter

        * @param aURL User defined WWW address to be used as start-up page    

        */

        void LaunchBrowserL( MWsfBrowserLaunchObserver& aObserver, 

                             TUint aIapId,

                             const TDesC& aURL ); 

        /**

        * Switches Browser application to foreground

        * @since S60 5.0

        */

        void ContinueBrowsingL();

        /**

        * Switches Browser application to foreground

        * @since S60 5.0

        * @param aObserver Observer to be notified about launch completion

        * @param aIapId IAP id passed as a parameter

        */

        void ContinueBrowsingL( MWsfBrowserLaunchObserver& aObserver, 

                                TUint aIapId );

        /**

        * Query launching state

        * @since S60 5.0

        * @return Lauching state

        */

        TWsfLaunchState Launching();

        /**

        * Returns the IAP which was last passed to the browser

        * @since S60 5.0

        * @return The IAP id passed to the browser.

        */

        TUint32 BrowserIap() const;

    private: // New private functions

        /**

        * Kills browser application if the one is already lauched

        * @since S60 5.0

        * @return ETrue if browser was killed, EFalse otherwise

        */

        TBool KillBrowserIfAlreadyExists();

        /**

        * Launches the browser asynchronously.

        * @since S60 5.0

        */

        void DoLaunchBrowserL();

        /**

        * Checks if Browser exists

        * @since S60 5.0

        * @return ETrue if the browser exists

        */

        TBool BrowserExists();

        /**

        * Checks what the default homepage is (URL) 

        * @since S60 5.0

        * @param aHomePageURL URL of the default homepage

        * @return KErrNone if successful, KErrNotFound if HomePage is 

        *         not defined

        */

        TInt BrowserHomepage( TDes& aHomePageURL );

    private:    // From CActive

        /**

        * Implements cancellation of an outstanding request.

        * @since S60 5.0

    	*/

    	void DoCancel();

        /**

        * Handles an active object's request completion event.

        * @since S60 5.0

    	*/

        void RunL();

        /**

        * Handles a leave occurring in RunL().

        * @since S60 5.0

        * @param aError Leave code

        * @return aError

    	*/

        TInt RunError( TInt aError );

    private: // data

        /**

        * Observer to be notified about launch completion. Not owned.

        */

        MWsfBrowserLaunchObserver* iObserver;

        /**

        * Window session

        */

        RWsSession iWsSession;

        /**

        * IAP id to use

        */

        TUint iIapId;

        /**

        * State of browser launching

        */

        TWsfLaunchState iLaunchState;  

        /**

        * Indicates whether to launch bookmarks page 

        * (if homepage is not set)

        */

        TBool iLaunchBookMarks;

        /**

        * Browser app's UID

        */

        TUid iBrowserUid;

        /**

        * Key number for browser's default homepage

        */

        TUint iHomepageKey;

        /**

        * Handle to a repository. Owned.

        */

        CRepository* iRepository;

        /**

        * URL of the homepage. Owned.

        */

        HBufC* iURL;

        /**

        * Timer to wait for browser startup etc.

        */

        RTimer iTimer;     

        /**

        * Browser's cenrep key number for the homepage

        */

        TUint iBrowserHomePageKey;

        /**

        * Browser's cenrep key number for the starting page

        */

        TUint iBrowserStartingPageKey;

        /**

        * The id of the broser thread

        */

        TThreadId iThreadId;

        /**

        * The browser thread

        */

        RThread iThread;

    };

#endif // C_WSFAPPLAUNCHER_H