webengine/widgetengine/inc/WidgetEngineBridge.h
author Pat Downey <patrick.downey@nokia.com>
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/*
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* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  
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*
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*/
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#ifndef __WIDGETENGINEINTERFACE
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#define __WIDGETENGINEINTERFACE
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//  INCLUDES
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#include "config.h"
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#include <e32base.h>
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#include <eikenv.h>
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#include "BrCtlDefs.h"
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#include "WidgetEngineCallbacks.h"
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#include "WidgetJSObjectProtector.h"
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#include "wtf/HashSet.h"
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// CONSTANTS
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// MACROS
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// DATA TYPES
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// FUNCTION PROTOTYPES
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// FORWARD DECLARATION
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class CMenuClient;
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class CWidgetClient;
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class MWidgetCallback;
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class WidgetPreferences;
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namespace KJS {
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	class JSValue;
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}
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// CLASS DECLARATION
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class MWidgetEngineBridge
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{
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public:
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    inline virtual ~MWidgetEngineBridge() {};       
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    virtual void* Widget(MWidgetCallback& aWidgetCallback, MWidgetEngineCallbacks& aWidgetEngineCallback) = 0;
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    virtual void* Menu(MWidgetCallback& aWidgetCallback, MWidgetEngineCallbacks& aWidgetEngineCallback) = 0;
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    virtual void* MenuItem(MWidgetCallback& aWidgetCallback, MWidgetEngineCallbacks& aWidgetEngineCallback) = 0;    
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    virtual void SetParamL(TBrCtlDefs::TBrCtlWidgetParams aParam, const TDesC& aValue) = 0;
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    virtual void SetParamL(TBrCtlDefs::TBrCtlWidgetParams aParam, TUint aValue) = 0;
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    virtual TBool HandleCommandL( TInt aCommandId ) = 0;        
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    virtual void OnShowSelected() = 0;
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    virtual void OnHideSelected() = 0;
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    virtual void AddOptionMenuItemsL(CEikMenuPane& aMenuPane, TInt aResourceId) = 0;
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    virtual void MenuItemSelected( TInt aInternalId ) = 0;
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    virtual void MenuShowed() = 0;
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    virtual void DrawTransition(CWindowGc& gc, CFbsBitmap* fbsBm) = 0;
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    virtual void Clear() = 0;
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};
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/**
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*  WidgetEngineBridge
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*
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*  @lib widgetengine.dll
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*  @since 3.1
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*/
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NONSHARABLE_CLASS( WidgetEngineBridge ): public MWidgetEngineBridge, public MJSObjectProtector
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{
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public:
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    WidgetEngineBridge();
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    virtual ~WidgetEngineBridge();
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public: //From MWidgetEngineBridge    
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    void* Widget(MWidgetCallback& aWidgetCallback, MWidgetEngineCallbacks& aWidgetEngineCallback);
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    void* Menu(MWidgetCallback& aWidgetCallback, MWidgetEngineCallbacks& aWidgetEngineCallback);
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    void* MenuItem(MWidgetCallback& aWidgetCallback, MWidgetEngineCallbacks& aWidgetEngineCallback);    
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    void SetParamL(TBrCtlDefs::TBrCtlWidgetParams aParam, const TDesC& aValue);
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    void SetParamL(TBrCtlDefs::TBrCtlWidgetParams aParam, TUint aValue);
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    TBool HandleCommandL( TInt aCommandId );
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    void OnShowSelected();
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    void OnHideSelected();
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    void AddOptionMenuItemsL(CEikMenuPane& aMenuPane, TInt aResourceId);
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    void MenuItemSelected( TInt aInternalId );
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    void MenuShowed();
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    void DrawTransition(CWindowGc& gc, CFbsBitmap* fbsBm);
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    void Clear();
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	void Protect(KJS::JSValue* obj);
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	void Unprotect(KJS::JSValue* obj);
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private:    
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    CMenuClient*			m_menuclient;
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    CWidgetClient*			m_widgetclient;                
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    WidgetPreferences*		m_preferences;
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	WTF::HashSet<KJS::JSValue*>	m_protectedObjects;
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 };
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#endif