/*

* 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:  Ecom interface header

*

*/

#ifndef __CDIALEREXTENSIONINTERFACE_H

#define __CDIALEREXTENSIONINTERFACE_H

#include <ecom/ecom.h>

#include <coecntrl.h>

#include <eikmenup.h>

/** UID of dialing extension ECom interface. */

const TUid KEasyDialingPluginInterfaceUID = { 0x200212A1 };

/** UID of easy dialing plugin. */

const TUid KEasyDialingPluginImplementationUID = { 0x200212A0 };

/**

 * Observer class for easy dialing.

 */

class MDialingExtensionObserver

    {

public:

    /**

     * Identifiers for easy dialing events.

     */

    typedef enum TEvent_enum

        {

        /** Contact search has completed. */

        ESearchComplete = 1,

        /** Easy dialing has gained or given up the focus. */

        EFocusChanged,

        /** Easy dialing has started communication launcher (a.k.a. contact view) */

        ECCALauncherStarted,

        /** Communication launcher a.k.a. contact view has been close. */

        ECCALauncherExit,

        /** Easy dialing feature has been switched on. */

        EEasyDialingEnabled,

        /** Easy dialing feature has been switched off. */

        EEasyDialingDisabled,

        /** User has started communication (SMS, IM, E-mail ...). Not used for phone calls. */

        ECommunicationStarted,

        /** User has cancelled communication once started. */

        ECommunicationCancelled

        } TEvent;

    /**

     * Handles event from easy dialing plugin.

     * 

     * @param aEvent    Event id.

     * 

     */

    virtual void HandleDialingExtensionEvent( MDialingExtensionObserver::TEvent aEvent ) = 0;

    };

/**

 * Easy dialing plugin class.

 */

class CDialingExtensionInterface : public CCoeControl

    {

public:

    /**

     * Creates an instance of plugin.

     */

    static CDialingExtensionInterface* NewL();

    /**

     * Destructor.

     */

    virtual ~CDialingExtensionInterface();

    /**

     * Does the rest of the initialization of the plugin.

     * Must be called after NewL before using any other 

     * functions of the plugin.

     * 

     * @param aParent   Parent container of the plugin.

     */

    virtual void InitializeL( CCoeControl& aParent ) = 0;

    /**

     * Resets the previous search results. 

     */

    virtual void Reset() = 0;

    /**

     * Adds an observer to the plugin.

     * 

     * @param aObserver Observer to be added.

     */

    virtual void AddObserverL( MDialingExtensionObserver* aObserver ) = 0;

    /**

     * Removes an observer from the plugin.

     * 

     * @param aObserver Observer to be removed.

     */

    virtual void RemoveObserver( MDialingExtensionObserver* aObserver ) = 0;

    /**

     * Sets input string (search string) to plugin.

     * 

     * @param aDesC Input string descriptor.

     */

    virtual void SetInputL( const TDesC& aDesC ) = 0;

    /**

     * Gets the resource id of plugin's control button area resource.

     * 

     * @return  Resource id.

     */

    virtual TInt CbaResourceId( ) = 0;

    /**

     * Gets the resource id of plugin's menu bar resource.

     * 

     * @return  Resource id.

     */

    virtual TInt MenuResourceId() = 0;

    /**

     * Gets the resource id of plugin's menu bar resource.

     * 

     * @param   aMenuPane   Menu pane

     * @param   aMenuResourceId Menu bar resource id.

     * @return  Resource id.

     */

    virtual TBool InitializeMenuPaneL( CEikMenuPane& aMenuPane, TInt aMenuResourceId ) = 0;

    /**

     * Handle a command. Supported command IDs are defined in header

     * easydialingcommands.hrh.

     * 

     * @param   aCommand   Command id.

     * @return  ETrue if command was handled, EFalse otherwise.

     */

    virtual TBool HandleCommandL( TInt aCommand ) = 0;

    /**

     * Tells if extension is currently enabled from settings.

     * @return  ETrue if extension is enabled, EFalse otherwise.

     */

    virtual TBool IsEnabled() const = 0;

private: // data

    /** ECom instance identifier key. */

    TUid iDestructorIDKey;

    };

// INLINE FUNCTIONS

// -----------------------------------------------------------------------------

// CDialingExtensionInterface::NewL

//

// -----------------------------------------------------------------------------

//

inline CDialingExtensionInterface* CDialingExtensionInterface::NewL()

    {

    // TEComResolverParams resolverParams; // data passed to the plugin

    // resolverParams.SetDataType();    // no data yet

    TAny* ptr = REComSession::CreateImplementationL( KEasyDialingPluginImplementationUID,

                                                     _FOFF( CDialingExtensionInterface, iDestructorIDKey )

                                                     // resolverParams 

                                                    );

    return STATIC_CAST( CDialingExtensionInterface*, ptr );

    }

// -----------------------------------------------------------------------------

// CDialingExtensionInterface::~CDialingExtensionInterface()

//

// -----------------------------------------------------------------------------

//

inline CDialingExtensionInterface::~CDialingExtensionInterface()

    {

    REComSession::DestroyedImplementation( iDestructorIDKey );

    }

#endif //__CDIALEREXTENSIONINTERFACE_H

// End of file