Add support for multiple text decorations with same line positioning

third_party/WebKit/Source/core/style/ComputedStyle.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 156 matching lines @@
     struct InheritedFlags {
         bool operator==(const InheritedFlags& other) const
         {
             return (_empty_cells == other._empty_cells)
                 && (_caption_side == other._caption_side)
                 && (_list_style_type == other._list_style_type)
                 && (_list_style_position == other._list_style_position)
                 && (_visibility == other._visibility)
                 && (_text_align == other._text_align)
                 && (_text_transform == other._text_transform)
-                && (m_textUnderline == other.m_textUnderline)
+                && (m_hasSimpleUnderline == other.m_hasSimpleUnderline)
                 && (_cursor_style == other._cursor_style)
                 && (_direction == other._direction)
                 && (_white_space == other._white_space)
                 && (_border_collapse == other._border_collapse)
                 && (_box_direction == other._box_direction)
                 && (m_rtlOrdering == other.m_rtlOrdering)
                 && (m_printColorAdjust == other.m_printColorAdjust)
                 && (_pointerEvents == other._pointerEvents)
                 && (_insideLink == other._insideLink)
                 && (m_writingMode == other.m_writingMode);
         }
 
         bool operator!=(const InheritedFlags& other) const { return !(*this == other); }
 
         unsigned _empty_cells : 1; // EEmptyCell
         unsigned _caption_side : 2; // ECaptionSide
         unsigned _list_style_type : 7; // EListStyleType
         unsigned _list_style_position : 1; // EListStylePosition
         unsigned _visibility : 2; // EVisibility
         unsigned _text_align : 4; // ETextAlign
         unsigned _text_transform : 2; // ETextTransform
-        unsigned m_textUnderline : 1;
+        unsigned m_hasSimpleUnderline : 1; // True if 'underline solid' is the only text decoration on this element
         unsigned _cursor_style : 6; // ECursor
         unsigned _direction : 1; // TextDirection
         unsigned _white_space : 3; // EWhiteSpace
         unsigned _border_collapse : 1; // EBorderCollapse
         unsigned _box_direction : 1; // EBoxDirection (CSS3 box_direction property, flexible box layout module)
         // 32 bits
 
         // non CSS2 inherited
         unsigned m_rtlOrdering : 1; // Order
         unsigned m_printColorAdjust : PrintColorAdjustBits;
@@ skipping 84 matching lines @@
 protected:
     void setBitDefaults()
     {
         inherited_flags._empty_cells = initialEmptyCells();
         inherited_flags._caption_side = initialCaptionSide();
         inherited_flags._list_style_type = initialListStyleType();
         inherited_flags._list_style_position = initialListStylePosition();
         inherited_flags._visibility = initialVisibility();
         inherited_flags._text_align = initialTextAlign();
         inherited_flags._text_transform = initialTextTransform();
-        inherited_flags.m_textUnderline = false;
+        inherited_flags.m_hasSimpleUnderline = false;
         inherited_flags._cursor_style = initialCursor();
         inherited_flags._direction = initialDirection();
         inherited_flags._white_space = initialWhiteSpace();
         inherited_flags._border_collapse = initialBorderCollapse();
         inherited_flags.m_rtlOrdering = initialRTLOrdering();
         inherited_flags._box_direction = initialBoxDirection();
         inherited_flags.m_printColorAdjust = initialPrintColorAdjust();
         inherited_flags._pointerEvents = initialPointerEvents();
         inherited_flags._insideLink = NotInsideLink;
         inherited_flags.m_writingMode = initialWritingMode();
@@ skipping 833 matching lines @@
     void setTextAutosizingMultiplier(float);
 
     void setColor(const Color&);
     void setTextIndent(const Length& v) { SET_VAR(rareInheritedData, indent, v); }
     void setTextIndentLine(TextIndentLine v) { SET_VAR(rareInheritedData, m_textIndentLine, v); }
     void setTextIndentType(TextIndentType v) { SET_VAR(rareInheritedData, m_textIndentType, v); }
     void setTextAlign(ETextAlign v) { inherited_flags._text_align = v; }
     void setTextAlignLast(TextAlignLast v) { SET_VAR(rareInheritedData, m_textAlignLast, v); }
     void setTextJustify(TextJustify v) { SET_VAR(rareInheritedData, m_textJustify, v); }
     void setTextTransform(ETextTransform v) { inherited_flags._text_transform = v; }
-    void applyTextDecorations();
+    void applyTextDecorations(const Color& parentTextDecorationColor, bool overrideExistingColors);
     void clearAppliedTextDecorations();
     void setTextDecoration(TextDecoration v) { SET_VAR(visual, textDecoration, v); }
     void setTextUnderlinePosition(TextUnderlinePosition v) { SET_VAR(rareInheritedData, m_textUnderlinePosition, v); }
     void setTextDecorationStyle(TextDecorationStyle v) { SET_VAR(rareNonInheritedData, m_textDecorationStyle, v); }
     void setDirection(TextDirection v) { inherited_flags._direction = v; }
     void setSelfOrAncestorHasDirAutoAttribute(bool v) { SET_VAR(rareInheritedData, m_selfOrAncestorHasDirAutoAttribute, v); }
     void setLineHeight(const Length& specifiedLineHeight);
     bool setZoom(float);
     bool setEffectiveZoom(float);
     void clearMultiCol();
@@ skipping 712 matching lines @@
 
     StyleColor decorationColorIncludingFallback(bool visitedLink) const;
     Color colorIncludingFallback(int colorProperty, bool visitedLink) const;
 
     Color stopColor() const { return svgStyle().stopColor(); }
     Color floodColor() const { return svgStyle().floodColor(); }
     Color lightingColor() const { return svgStyle().lightingColor(); }
 
     void appendContent(PassOwnPtrWillBeRawPtr<ContentData>);
     void addAppliedTextDecoration(const AppliedTextDecoration&);
+    void overrideTextDecorationColors(Color propagatedColor);
     void applyMotionPathTransform(float originX, float originY, TransformationMatrix&) const;
 
     bool diffNeedsFullLayoutAndPaintInvalidation(const ComputedStyle& other) const;
     bool diffNeedsFullLayout(const ComputedStyle& other) const;
     bool diffNeedsPaintInvalidationLayer(const ComputedStyle& other) const;
     bool diffNeedsPaintInvalidationObject(const ComputedStyle& other) const;
     void updatePropertySpecificDifferences(const ComputedStyle& other, StyleDifference&) const;
 
     bool requireTransformOrigin(ApplyTransformOrigin applyOrigin, ApplyMotionPath) const;
 };
@@ skipping 104 matching lines @@
 }
 
 inline bool ComputedStyle::hasPseudoElementStyle() const
 {
     return noninherited_flags.pseudoBits & PSEUDO_ELEMENT_MASK;
 }
 
 } // namespace blink
 
 #endif // ComputedStyle_h