webengine/osswebengine/WebKit/s60/webview/BrCtlLayoutObserverImpl.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 09:20:16 +0200
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/*
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* Copyright (c) 2006 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:  Handle scrollbar and tab events
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*
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*/
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#ifndef BRCTLLAYOUTOBSERVERIMPL_H
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#define BRCTLLAYOUTOBSERVERIMPL_H
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//  INCLUDES
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#include <brctllayoutobserver.h>
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/**
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*  This observer is notified of scrolling and tabbing events
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*
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*  @lib BrowserEngine.lib
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*  @since 2.8
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*/
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class CBrCtlLayoutObserver : public CBase, public MBrCtlLayoutObserver
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    {
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    public: // From MBrCtlLayoutObserverImpl
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        /**
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        * Update the position of vertical scrollbar.
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        * @since 2.8
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        * @param aDocumentHeight The total height of the markup page
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        * @param aDisplayHeight The height of the display
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        * @param aDisplayPosY The current Y position
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        * @return void
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        */
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        virtual void UpdateBrowserVScrollBarL(TInt /*aDocumentHeight*/, 
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                                              TInt /*aDisplayHeight*/,
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                                              TInt /*aDisplayPosY*/ ) {}
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        /**
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        * Update the position of horizontal scrollbar.
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        * @since 2.8
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        * @param aDocumentWidth The total width of the markup page
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        * @param aDisplayWidth The width of the display
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        * @param aDisplayPosX The current X position
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        * @return void
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        */
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        virtual void UpdateBrowserHScrollBarL(TInt /*aDocumentWidth*/, 
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                                              TInt /*aDisplayWidth*/,
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                                              TInt /*aDisplayPosX*/ ) {}
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        /**
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        * Inform the layout of the page: right to left or left to right. Useful when the application draws the scrollbar itself.
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        * @since 2.8
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        * @param aNewLayout RTL or LTR
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        * @return void
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        */
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        virtual void NotifyLayoutChange( TBrCtlLayout /*aNewLayout*/ ) {}
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        /**
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        * Update the title of the page in history view
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        * @since 3.0
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        * @param aTitle Title of the page
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        * @return void
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        */
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        virtual void UpdateTitleL( const TDesC& /*aTitle*/ ) {}        
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    };
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#endif      // BRCTLLAYOUTOBSERVERIMPL_H
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// End of File