webengine/osswebengine/WebKit/s60/misc/WebTabbedNavigation.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 26 Oct 2009 08:28:45 +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:  Implemetation of CWebKitView
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*
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*/
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#ifndef __WEBTABBEDNAVIGATION_H__
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#define __WEBTABBEDNAVIGATION_H__
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#include <e32std.h>
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class WebView;
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namespace WebCore {
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    class Element;
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    class Node;
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    class Frame;
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};
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class WebTabbedNavigation {
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    public:
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        WebTabbedNavigation(WebView* webView);
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        ~WebTabbedNavigation();
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        bool navigate(int horizontalDir, int verticalDir);
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        void clear();
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        void initializeForPage();
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        void updateCursorPosition(const TPoint& pos);
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        void focusedElementChanged(WebCore::Element* element);
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        TPoint updateCursorPosAfterScroll(WebCore::Frame* frame, int horizontalDir, int verticalDir);
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    private:
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        bool selectNode(int horizontalDir, int verticalDir, TRect& selectedRect, TRect& newNodeRect, TPoint& selectedPoint, TPoint& newFocusPoint);
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        TPoint potentialFocusPoint(int horizontalDir, int verticalDir, TRect& newNodeRect);
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        int distanceFunction(int horizontalDir, int verticalDir, TRect& rect, TPoint& point);
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        WebCore::Node* bestFitFocusableNode(WebCore::Frame* topFrame, TRect& viewRect, int horizontalDir, int verticalDir,
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                                            TPoint& selectedPoint, TRect& selectedRect );
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        void handleMultiSelect(int horizontalDir, int verticalDir);
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        void resetNavigationIfNeeded(TPoint& contentPos, TSize& contentSize, WebCore::Frame* focusedFrame,
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                                                         int horizontalDir, int verticalDir);
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        TPoint focusPointFromFocusedNode(WebCore::Frame* frame, int horizontalDir, int verticalDir);
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        void calcSearchViewRect(int horizontalDir, int verticalDir, TRect& view);
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        bool shouldConsiderRect(TRect& rect, TRect& searchRect, int horizontalDir, int verticalDir);
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    private:
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        TRect m_selectedElementRect;
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        WebView* m_webView; // not owned
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        bool m_initializedForPage;
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        bool m_firstNavigationOnPage;
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        TPoint m_focusPosition;
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        void* m_node;
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};
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#endif //__WEBTABBEDNAVIGATION_H__
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// END OF FILE
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