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

Source/core/rendering/style/StyleRareNonInheritedData.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 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
+ * Copyright (C) 2014 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 12 matching lines @@
 #include "core/rendering/ClipPathOperation.h"
 #include "core/rendering/style/BasicShapes.h"
 #include "core/rendering/style/CounterDirectives.h"
 #include "core/rendering/style/CursorData.h"
 #include "core/rendering/style/DataRef.h"
 #include "core/rendering/style/FillLayer.h"
 #include "core/rendering/style/LineClampValue.h"
 #include "core/rendering/style/NinePieceImage.h"
 #include "core/rendering/style/RenderStyleConstants.h"
 #include "core/rendering/style/ShapeValue.h"
+#include "core/rendering/style/StyleNavigationData.h"
 #include "platform/LengthPoint.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class ContentData;
 class CSSAnimationData;
 class CSSTransitionData;
@@ skipping 34 matching lines @@
 
     bool contentDataEquivalent(const StyleRareNonInheritedData&) const;
     bool counterDataEquivalent(const StyleRareNonInheritedData&) const;
     bool shadowDataEquivalent(const StyleRareNonInheritedData&) const;
     bool reflectionDataEquivalent(const StyleRareNonInheritedData&) const;
     bool animationDataEquivalent(const StyleRareNonInheritedData&) const;
     bool transitionDataEquivalent(const StyleRareNonInheritedData&) const;
     bool hasFilters() const;
     bool hasOpacity() const { return opacity < 1; }
 
+    StyleNavigationValue navDown() const;
+    StyleNavigationValue navLeft() const;
+    StyleNavigationValue navRight() const;
+    StyleNavigationValue navUp() const;
+
+    void setNavDown(const StyleNavigationValue&);
+    void setNavLeft(const StyleNavigationValue&);
+    void setNavRight(const StyleNavigationValue&);
+    void setNavUp(const StyleNavigationValue&);
+
     float opacity; // Whether or not we're transparent.
 
     float m_aspectRatioDenominator;
     float m_aspectRatioNumerator;
 
     float m_perspective;
     Length m_perspectiveOriginX;
     Length m_perspectiveOriginY;
 
     LineClampValue lineClamp; // An Apple extension.
@@ skipping 17 matching lines @@
     RefPtr<ShadowList> m_boxShadow;
 
     RefPtr<StyleReflection> m_boxReflect;
 
     OwnPtrWillBePersistent<CSSAnimationData> m_animations;
     OwnPtrWillBePersistent<CSSTransitionData> m_transitions;
 
     FillLayer m_mask;
     NinePieceImage m_maskBoxImage;
 
+    DataRef<StyleNavigationData> m_navigation;
+
     LengthSize m_pageSize;
 
     RefPtr<ShapeValue> m_shapeOutside;
     Length m_shapeMargin;
     float m_shapeImageThreshold;
 
     RefPtr<ClipPathOperation> m_clipPath;
 
     StyleColor m_textDecorationColor;
     StyleColor m_visitedLinkTextDecorationColor;
@@ skipping 66 matching lines @@
     // so store this bit so that the style actually changes when the plugin
     // becomes composited.
     unsigned m_requiresAcceleratedCompositingForExternalReasons: 1;
 
     // Whether the transform (if it exists) is stored in the element's inline style.
     unsigned m_hasInlineTransform : 1;
 
 private:
     StyleRareNonInheritedData();
     StyleRareNonInheritedData(const StyleRareNonInheritedData&);
+
+    void setNavigation(StyleNavigationData::NavigationDirection, const StyleNavigationValue&);
 };
 
 } // namespace blink
 
 #endif // StyleRareNonInheritedData_h