Add CSS parser support for break-after, break-before and break-inside.

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 219 matching lines @@
                 && originalDisplay == other.originalDisplay
                 && overflowX == other.overflowX
                 && overflowY == other.overflowY
                 && verticalAlign == other.verticalAlign
                 && clear == other.clear
                 && position == other.position
                 && floating == other.floating
                 && tableLayout == other.tableLayout
                 && unicodeBidi == other.unicodeBidi
                 // hasViewportUnits
-                && pageBreakBefore == other.pageBreakBefore
-                && pageBreakAfter == other.pageBreakAfter
-                && pageBreakInside == other.pageBreakInside;
+                && breakBefore == other.breakBefore
+                && breakAfter == other.breakAfter
+                && breakInside == other.breakInside;
                 // styleType
                 // pseudoBits
                 // explicitInheritance
                 // unique
                 // emptyState
                 // affectedByFocus
                 // affectedByHover
                 // affectedByActive
                 // affectedByDrag
                 // isLink
@@ skipping 11 matching lines @@
         unsigned floating : 2; // EFloat
         unsigned tableLayout : 1; // ETableLayout
         unsigned unicodeBidi : 3; // EUnicodeBidi
 
         // This is set if we used viewport units when resolving a length.
         // It is mutable so we can pass around const ComputedStyles to resolve lengths.
         mutable unsigned hasViewportUnits : 1;
 
         // 32 bits
 
-        unsigned pageBreakBefore : 2; // EPageBreak
-        unsigned pageBreakAfter : 2; // EPageBreak
-        unsigned pageBreakInside : 2; // EPageBreak
+        unsigned breakBefore : 4; // EBreak
+        unsigned breakAfter : 4; // EBreak
+        unsigned breakInside : 2; // EBreak
 
         unsigned styleType : 6; // PseudoId
         unsigned pseudoBits : 8;
         unsigned explicitInheritance : 1; // Explicitly inherits a non-inherited property
         unsigned variableReference : 1; // A non-inherited property references a variable.
         unsigned unique : 1; // Style can not be shared.
 
         unsigned emptyState : 1;
 
         unsigned affectedByFocus : 1;
         unsigned affectedByHover : 1;
         unsigned affectedByActive : 1;
         unsigned affectedByDrag : 1;
 
+        // 64 bits
+
         unsigned isLink : 1;
 
         mutable unsigned hasRemUnits : 1;
         // If you add more style bits here, you will also need to update ComputedStyle::copyNonInheritedFromCached()
-        // 62 bits
+        // 66 bits
     } noninherited_flags;
 
 // !END SYNC!
 
 protected:
     void setBitDefaults()
     {
         inherited_flags._empty_cells = initialEmptyCells();
         inherited_flags._caption_side = initialCaptionSide();
         inherited_flags._list_style_type = initialListStyleType();
@@ skipping 15 matching lines @@
 
         noninherited_flags.effectiveDisplay = noninherited_flags.originalDisplay = initialDisplay();
         noninherited_flags.overflowX = initialOverflowX();
         noninherited_flags.overflowY = initialOverflowY();
         noninherited_flags.verticalAlign = initialVerticalAlign();
         noninherited_flags.clear = initialClear();
         noninherited_flags.position = initialPosition();
         noninherited_flags.floating = initialFloating();
         noninherited_flags.tableLayout = initialTableLayout();
         noninherited_flags.unicodeBidi = initialUnicodeBidi();
-        noninherited_flags.pageBreakBefore = initialPageBreak();
-        noninherited_flags.pageBreakAfter = initialPageBreak();
-        noninherited_flags.pageBreakInside = initialPageBreak();
+        noninherited_flags.breakBefore = initialBreakBefore();
+        noninherited_flags.breakAfter = initialBreakAfter();
+        noninherited_flags.breakInside = initialBreakInside();
         noninherited_flags.styleType = NOPSEUDO;
         noninherited_flags.pseudoBits = 0;
         noninherited_flags.explicitInheritance = false;
         noninherited_flags.variableReference = false;
         noninherited_flags.unique = false;
         noninherited_flags.emptyState = false;
         noninherited_flags.hasViewportUnits = false;
         noninherited_flags.affectedByFocus = false;
         noninherited_flags.affectedByHover = false;
         noninherited_flags.affectedByActive = false;
@@ skipping 395 matching lines @@
     ECursor cursor() const { return static_cast<ECursor>(inherited_flags._cursor_style); }
     CursorList* cursors() const { return rareInheritedData->cursorData.get(); }
 
     EInsideLink insideLink() const { return static_cast<EInsideLink>(inherited_flags._insideLink); }
     bool isLink() const { return noninherited_flags.isLink; }
 
     short widows() const { return rareInheritedData->widows; }
     short orphans() const { return rareInheritedData->orphans; }
     bool hasAutoWidows() const { return rareInheritedData->widows == 1; }
     bool hasAutoOrphans() const { return rareInheritedData->m_hasAutoOrphans; }
-    EPageBreak pageBreakInside() const { return static_cast<EPageBreak>(noninherited_flags.pageBreakInside); }
-    EPageBreak pageBreakBefore() const { return static_cast<EPageBreak>(noninherited_flags.pageBreakBefore); }
-    EPageBreak pageBreakAfter() const { return static_cast<EPageBreak>(noninherited_flags.pageBreakAfter); }
+    EBreak breakAfter() const { return static_cast<EBreak>(noninherited_flags.breakAfter); }
+    EBreak breakBefore() const { return static_cast<EBreak>(noninherited_flags.breakBefore); }
+    EBreak breakInside() const { return static_cast<EBreak>(noninherited_flags.breakInside); }
 
     // CSS3 Getter Methods
 
     int outlineOffset() const
     {
         if (m_background->outline().style() == BNONE)
             return 0;
         return m_background->outline().offset();
     }
 
@@ skipping 109 matching lines @@
     bool hasAutoColumnCount() const { return rareNonInheritedData->m_multiCol->m_autoCount; }
     bool specifiesColumns() const { return !hasAutoColumnCount() || !hasAutoColumnWidth(); }
     ColumnFill columnFill() const { return static_cast<ColumnFill>(rareNonInheritedData->m_multiCol->m_fill); }
     float columnGap() const { return rareNonInheritedData->m_multiCol->m_gap; }
     bool hasNormalColumnGap() const { return rareNonInheritedData->m_multiCol->m_normalGap; }
     EBorderStyle columnRuleStyle() const { return rareNonInheritedData->m_multiCol->m_rule.style(); }
     unsigned short columnRuleWidth() const { return rareNonInheritedData->m_multiCol->ruleWidth(); }
     bool columnRuleIsTransparent() const { return rareNonInheritedData->m_multiCol->m_rule.isTransparent(); }
     bool columnRuleEquivalent(const ComputedStyle* otherStyle) const;
     ColumnSpan columnSpan() const { return static_cast<ColumnSpan>(rareNonInheritedData->m_multiCol->m_columnSpan); }
-    EPageBreak columnBreakBefore() const { return static_cast<EPageBreak>(rareNonInheritedData->m_multiCol->m_breakBefore); }
-    EPageBreak columnBreakInside() const { return static_cast<EPageBreak>(rareNonInheritedData->m_multiCol->m_breakInside); }
-    EPageBreak columnBreakAfter() const { return static_cast<EPageBreak>(rareNonInheritedData->m_multiCol->m_breakAfter); }
     bool hasInlineTransform() const { return rareNonInheritedData->m_hasInlineTransform; }
     bool hasCompositorProxy() const { return rareNonInheritedData->m_hasCompositorProxy; }
     const TransformOperations& transform() const { return rareNonInheritedData->m_transform->m_operations; }
     const TransformOrigin& transformOrigin() const { return rareNonInheritedData->m_transform->m_origin; }
     const Length& transformOriginX() const { return transformOrigin().x(); }
     const Length& transformOriginY() const { return transformOrigin().y(); }
     TranslateTransformOperation* translate() const { return rareNonInheritedData->m_transform->m_translate.get(); }
     RotateTransformOperation* rotate() const { return rareNonInheritedData->m_transform->m_rotate.get(); }
     ScaleTransformOperation* scale() const { return rareNonInheritedData->m_transform->m_scale.get(); }
     float transformOriginZ() const { return transformOrigin().z(); }
@@ skipping 397 matching lines @@
     void setHasAutoZIndex() { SET_VAR(m_box, m_hasAutoZIndex, true); SET_VAR(m_box, m_zIndex, 0); }
     int zIndex() const { return m_box->zIndex(); }
     void setZIndex(int v) { SET_VAR(m_box, m_hasAutoZIndex, false); SET_VAR(m_box, m_zIndex, v); }
 
     void setHasAutoWidows() { SET_VAR(rareInheritedData, widows, initialWidows()); }
     void setWidows(short w) { SET_VAR(rareInheritedData, widows, w); }
 
     void setHasAutoOrphans() { SET_VAR(rareInheritedData, m_hasAutoOrphans, true); SET_VAR(rareInheritedData, orphans, initialOrphans()); }
     void setOrphans(short o) { SET_VAR(rareInheritedData, m_hasAutoOrphans, false); SET_VAR(rareInheritedData, orphans, o); }
 
-    // For valid values of page-break-inside see http://www.w3.org/TR/CSS21/page.html#page-break-props
-    void setPageBreakInside(EPageBreak b) { ASSERT(b == PBAUTO || b == PBAVOID); noninherited_flags.pageBreakInside = b; }
-    void setPageBreakBefore(EPageBreak b) { noninherited_flags.pageBreakBefore = b; }
-    void setPageBreakAfter(EPageBreak b) { noninherited_flags.pageBreakAfter = b; }
+    void setBreakAfter(EBreak b) { ASSERT(b <= BreakValueLastAllowedForBreakAfterAndBefore); noninherited_flags.breakAfter = b; }
+    void setBreakBefore(EBreak b) { ASSERT(b <= BreakValueLastAllowedForBreakAfterAndBefore); noninherited_flags.breakBefore = b;  }
+    void setBreakInside(EBreak b) { ASSERT(b <= BreakValueLastAllowedForBreakInside); noninherited_flags.breakInside = b;  }
 
     // CSS3 Setters
     void setOutlineOffset(int v) { SET_VAR(m_background, m_outline.m_offset, v); }
     void setTextShadow(PassRefPtr<ShadowList>);
     void setTextStrokeColor(const StyleColor& c) { SET_VAR_WITH_SETTER(rareInheritedData, textStrokeColor, setTextStrokeColor, c); }
     void setTextStrokeWidth(float w) { SET_VAR(rareInheritedData, textStrokeWidth, w); }
     void setTextFillColor(const StyleColor& c) { SET_VAR_WITH_SETTER(rareInheritedData, textFillColor, setTextFillColor, c); }
     void setOpacity(float f) { float v = clampTo<float>(f, 0, 1); SET_VAR(rareNonInheritedData, opacity, v); }
     void setAppearance(ControlPart a) { SET_VAR(rareNonInheritedData, m_appearance, a); }
     // For valid values of box-align see http://www.w3.org/TR/2009/WD-css3-flexbox-20090723/#alignment
@@ skipping 75 matching lines @@
     void setHasAutoColumnWidth() { SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_autoWidth, true); SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_width, 0); }
     void setColumnCount(unsigned short c) { SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_autoCount, false); SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_count, c); }
     void setHasAutoColumnCount() { SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_autoCount, true); SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_count, initialColumnCount()); }
     void setColumnFill(ColumnFill columnFill) { SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_fill, columnFill); }
     void setColumnGap(float f) { SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_normalGap, false); SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_gap, f); }
     void setHasNormalColumnGap() { SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_normalGap, true); SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_gap, 0); }
     void setColumnRuleColor(const StyleColor& c) { SET_BORDERVALUE_COLOR(rareNonInheritedData.access()->m_multiCol, m_rule, c); }
     void setColumnRuleStyle(EBorderStyle b) { SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_rule.m_style, b); }
     void setColumnRuleWidth(unsigned short w) { SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_rule.m_width, w); }
     void setColumnSpan(ColumnSpan columnSpan) { SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_columnSpan, columnSpan); }
-    void setColumnBreakBefore(EPageBreak p) { SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_breakBefore, p); }
-    // For valid values of column-break-inside see http://www.w3.org/TR/css3-multicol/#break-before-break-after-break-inside
-    void setColumnBreakInside(EPageBreak p) { ASSERT(p == PBAUTO || p == PBAVOID); SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_breakInside, p); }
-    void setColumnBreakAfter(EPageBreak p) { SET_NESTED_VAR(rareNonInheritedData, m_multiCol, m_breakAfter, p); }
     void inheritColumnPropertiesFrom(const ComputedStyle& parent) { rareNonInheritedData.access()->m_multiCol = parent.rareNonInheritedData->m_multiCol; }
     void setHasInlineTransform(bool b) { SET_VAR(rareNonInheritedData, m_hasInlineTransform, b); }
     void setHasCompositorProxy(bool b) { SET_VAR(rareNonInheritedData, m_hasCompositorProxy, b); }
     void setTransform(const TransformOperations& ops) { SET_NESTED_VAR(rareNonInheritedData, m_transform, m_operations, ops); }
     void setTransformOriginX(const Length& v) { setTransformOrigin(TransformOrigin(v, transformOriginY(), transformOriginZ())); }
     void setTransformOriginY(const Length& v) { setTransformOrigin(TransformOrigin(transformOriginX(), v, transformOriginZ())); }
     void setTransformOriginZ(float f) { setTransformOrigin(TransformOrigin(transformOriginX(), transformOriginY(), f)); }
     void setTransformOrigin(const TransformOrigin& o) { SET_NESTED_VAR(rareNonInheritedData, m_transform, m_origin, o); }
     void setTranslate(PassRefPtr<TranslateTransformOperation> v) { rareNonInheritedData.access()->m_transform.access()->m_translate = v; }
     void setRotate(PassRefPtr<RotateTransformOperation> v) { rareNonInheritedData.access()->m_transform.access()->m_rotate = v; }
@@ skipping 239 matching lines @@
     static TextOrientation initialTextOrientation() { return TextOrientationMixed; }
     static ObjectFit initialObjectFit() { return ObjectFitFill; }
     static LengthPoint initialObjectPosition() { return LengthPoint(Length(50.0, Percent), Length(50.0, Percent)); }
     static EDisplay initialDisplay() { return INLINE; }
     static EEmptyCell initialEmptyCells() { return SHOW; }
     static EFloat initialFloating() { return NoFloat; }
     static EListStylePosition initialListStylePosition() { return OUTSIDE; }
     static EListStyleType initialListStyleType() { return Disc; }
     static EOverflow initialOverflowX() { return OVISIBLE; }
     static EOverflow initialOverflowY() { return OVISIBLE; }
-    static EPageBreak initialPageBreak() { return PBAUTO; }
+    static EBreak initialBreakAfter() { return BreakAuto; }
+    static EBreak initialBreakBefore() { return BreakAuto; }
+    static EBreak initialBreakInside() { return BreakAuto; }
     static EPosition initialPosition() { return StaticPosition; }
     static ETableLayout initialTableLayout() { return TAUTO; }
     static EUnicodeBidi initialUnicodeBidi() { return UBNormal; }
     static ETextTransform initialTextTransform() { return TTNONE; }
     static EVisibility initialVisibility() { return VISIBLE; }
     static EWhiteSpace initialWhiteSpace() { return NORMAL; }
     static short initialHorizontalBorderSpacing() { return 0; }
     static short initialVerticalBorderSpacing() { return 0; }
     static ECursor initialCursor() { return CURSOR_AUTO; }
     static Color initialColor() { return Color::black; }
@@ skipping 344 matching lines @@
 }
 
 inline bool ComputedStyle::hasPseudoElementStyle() const
 {
     return noninherited_flags.pseudoBits & PSEUDO_ELEMENT_MASK;
 }
 
 } // namespace blink
 
 #endif // ComputedStyle_h