Implementation of CSS3 nav-up/down/left/right properties from CSS3 UI.

Source/core/rendering/style/RenderStyle.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 815 matching lines @@
     void applyTransform(TransformationMatrix&, const LayoutSize& borderBoxSize, ApplyTransformOrigin = IncludeTransformOrigin) const;
     void applyTransform(TransformationMatrix&, const FloatRect& boundingBox, ApplyTransformOrigin = IncludeTransformOrigin) const;
 
     bool hasMask() const { return rareNonInheritedData->m_mask.hasImage() || rareNonInheritedData->m_maskBoxImage.hasImage(); }
 
     TextCombine textCombine() const { return static_cast<TextCombine>(rareNonInheritedData->m_textCombine); }
     bool hasTextCombine() const { return textCombine() != TextCombineNone; }
 
     unsigned tabSize() const { return rareInheritedData->m_tabSize; }
 
+    StyleNavigationValue navDown() const { return rareNonInheritedData->m_navigation.m_down; }
+    StyleNavigationValue navLeft() const { return rareNonInheritedData->m_navigation.m_left; }
+    StyleNavigationValue navRight() const { return rareNonInheritedData->m_navigation.m_right; }
+    StyleNavigationValue navUp() const { return rareNonInheritedData->m_navigation.m_up; }
+
     // End CSS3 Getters
 
     const AtomicString& flowThread() const { return rareNonInheritedData->m_flowThread; }
     const AtomicString& regionThread() const { return rareNonInheritedData->m_regionThread; }
     RegionFragment regionFragment() const { return static_cast<RegionFragment>(rareNonInheritedData->m_regionFragment); }
 
     const AtomicString& lineGrid() const { return rareInheritedData->m_lineGrid; }
     LineSnap lineSnap() const { return static_cast<LineSnap>(rareInheritedData->m_lineSnap); }
     LineAlign lineAlign() const { return static_cast<LineAlign>(rareInheritedData->m_lineAlign); }
 
@@ skipping 404 matching lines @@
     void setTextEmphasisCustomMark(const AtomicString& mark) { SET_VAR(rareInheritedData, textEmphasisCustomMark, mark); }
     void setTextEmphasisPosition(TextEmphasisPosition position) { SET_VAR(rareInheritedData, textEmphasisPosition, position); }
     bool setTextOrientation(TextOrientation);
 
     void setRubyPosition(RubyPosition position) { SET_VAR(rareInheritedData, m_rubyPosition, position); }
 
     void setFilter(const FilterOperations& ops) { SET_VAR(rareNonInheritedData.access()->m_filter, m_operations, ops); }
 
     void setTabSize(unsigned size) { SET_VAR(rareInheritedData, m_tabSize, size); }
 
+    void setNavDown(StyleNavigationValue v) { SET_VAR(rareNonInheritedData, m_navigation.m_down, v); }
+    void setNavLeft(StyleNavigationValue v) { SET_VAR(rareNonInheritedData, m_navigation.m_left, v); }
+    void setNavRight(StyleNavigationValue v) { SET_VAR(rareNonInheritedData, m_navigation.m_right, v); }
+    void setNavUp(StyleNavigationValue v) { SET_VAR(rareNonInheritedData, m_navigation.m_up, v); }
+
     // End CSS3 Setters
 
     void setLineGrid(const AtomicString& lineGrid) { SET_VAR(rareInheritedData, m_lineGrid, lineGrid); }
     void setLineSnap(LineSnap lineSnap) { SET_VAR(rareInheritedData, m_lineSnap, lineSnap); }
     void setLineAlign(LineAlign lineAlign) { SET_VAR(rareInheritedData, m_lineAlign, lineAlign); }
 
     void setFlowThread(const AtomicString& flowThread) { SET_VAR(rareNonInheritedData, m_flowThread, flowThread); }
     void setRegionThread(const AtomicString& regionThread) { SET_VAR(rareNonInheritedData, m_regionThread, regionThread); }
     void setRegionFragment(RegionFragment regionFragment) { SET_VAR(rareNonInheritedData, m_regionFragment, regionFragment); }
 
@@ skipping 337 matching lines @@
 
     static const AtomicString& initialFlowThread() { return nullAtom; }
     static const AtomicString& initialRegionThread() { return nullAtom; }
     static RegionFragment initialRegionFragment() { return AutoRegionFragment; }
 
     static WrapFlow initialWrapFlow() { return WrapFlowAuto; }
     static WrapThrough initialWrapThrough() { return WrapThroughWrap; }
 
     static QuotesData* initialQuotes() { return 0; }
 
+    static StyleNavigationValue initialStyleNavigation() { DEFINE_STATIC_LOCAL(StyleNavigationValue, initial_navigation, ()); return initial_navigation; }
+
     // Keep these at the end.
     // FIXME: Why? Seems these should all be one big sorted list.
     static LineClampValue initialLineClamp() { return LineClampValue(); }
     static ETextSecurity initialTextSecurity() { return TSNONE; }
     static Color initialTapHighlightColor();
     static const FilterOperations& initialFilter() { DEFINE_STATIC_LOCAL(FilterOperations, ops, ()); return ops; }
     static BlendMode initialBlendMode() { return BlendModeNormal; }
 private:
     void setVisitedLinkColor(const StyleColor&);
     void setVisitedLinkBackgroundColor(const StyleColor& v) { SET_VAR(rareNonInheritedData, m_visitedLinkBackgroundColor, v); }
@@ skipping 117 matching lines @@
     if (compareEqual(rareInheritedData->m_textOrientation, textOrientation))
         return false;
 
     rareInheritedData.access()->m_textOrientation = textOrientation;
     return true;
 }
 
 } // namespace WebCore
 
 #endif // RenderStyle_h