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)
+ * Copyright (C) 2013 Opera Software ASA. All rights reserved.
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
@@ skipping 868 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; }
 
+    StyleNavigationData* navigation() const { return rareNonInheritedData->m_navigation.get(); }
     // End CSS3 Getters
 
     WrapFlow wrapFlow() const { return static_cast<WrapFlow>(rareNonInheritedData->m_wrapFlow); }
     WrapThrough wrapThrough() const { return static_cast<WrapThrough>(rareNonInheritedData->m_wrapThrough); }
 
     // Apple-specific property getter methods
     EPointerEvents pointerEvents() const { return static_cast<EPointerEvents>(inherited_flags._pointerEvents); }
     const CSSAnimationDataList* animations() const { return rareNonInheritedData->m_animations.get(); }
     const CSSAnimationDataList* transitions() const { return rareNonInheritedData->m_transitions.get(); }
 
@@ skipping 431 matching lines @@
 
     void setObjectFit(ObjectFit f) { SET_VAR(rareNonInheritedData, m_objectFit, f); }
     void setObjectPosition(LengthPoint position) { SET_VAR(rareNonInheritedData, m_objectPosition, position); }
 
     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 setNavigation(const StyleNavigationData&);

[fs, 2014/04/14 12:32:01]

I think it might end up easier to just have one setter for each property and
then use SET_VAR_WITH_SETTER and handle the potential NULL value in the
getter/setter on StyleRareNonInheritedData (this is related to the comment in
CSSProperties.in.)

[Krzysztof Olczyk, 2014/04/17 13:48:40]

Done.

+    void setNavigation(StyleNavigationData::NavigationDirection, const StyleNavigationValue&, bool add);
     // End CSS3 Setters
 
     void setWrapFlow(WrapFlow wrapFlow) { SET_VAR(rareNonInheritedData, m_wrapFlow, wrapFlow); }
     void setWrapThrough(WrapThrough wrapThrough) { SET_VAR(rareNonInheritedData, m_wrapThrough, wrapThrough); }
 
     // Apple-specific property setters
     void setPointerEvents(EPointerEvents p) { inherited_flags._pointerEvents = p; }
 
     void clearAnimations()
     {
@@ skipping 325 matching lines @@
     static GridPosition initialGridRowStart() { return GridPosition(); }
     static GridPosition initialGridRowEnd() { return GridPosition(); }
 
     static unsigned initialTabSize() { return 8; }
 
     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; }

[fs, 2014/04/14 12:32:01]

initial_navigation -> initialNavigation

[Krzysztof Olczyk, 2014/04/17 13:48:40]

Done.

+
     // 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 blink::WebBlendMode initialBlendMode() { return blink::WebBlendModeNormal; }
     static EIsolation initialIsolation() { return IsolationAuto; }
 private:
     void setVisitedLinkColor(const Color&);
@@ skipping 157 matching lines @@
 inline bool RenderStyle::hasPseudoElementStyle() const
 {
     return noninherited_flags._pseudoBits & PSEUDO_ELEMENT_MASK;
 }
 
 float calcBorderRadiiConstraintScaleFor(const FloatRect&, const FloatRoundedRect::Radii&);
 
 } // namespace WebCore
 
 #endif // RenderStyle_h