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- /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Mozilla Communicator client code.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Original Author: David W. Hyatt (hyatt@netscape.com)
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
- #ifndef nsRuleNode_h___
- #define nsRuleNode_h___
-
- #include "nsPresContext.h"
- #include "nsStyleStruct.h"
-
- class nsStyleContext;
- struct nsRuleList;
- struct PLDHashTable;
- class nsILanguageAtomService;
- struct nsRuleData;
- class nsIStyleRule;
- struct nsCSSStruct;
- // Copy of typedef that's in nsCSSStruct.h, for compilation speed.
- typedef nsCSSStruct nsRuleDataStruct;
-
- struct nsRuleDataFont;
- class nsCSSValue;
-
- typedef void (*nsPostResolveFunc)(nsStyleStruct* aStyleStruct, nsRuleData* aData);
-
- struct nsInheritedStyleData
- {
-
- #define STYLE_STRUCT_INHERITED(name, checkdata_cb, ctor_args) \
- nsStyle##name * m##name##Data;
- #define STYLE_STRUCT_RESET(name, checkdata_cb, ctor_args)
-
- #include "nsStyleStructList.h"
-
- #undef STYLE_STRUCT_INHERITED
- #undef STYLE_STRUCT_RESET
-
- void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
- return aContext->AllocateFromShell(sz);
- };
-
- void ClearInheritedData(PRUint32 aBits) {
- #define STYLE_STRUCT_INHERITED(name, checkdata_cb, ctor_args) \
- if (m##name##Data && (aBits & NS_STYLE_INHERIT_BIT(name))) \
- m##name##Data = nsnull;
- #define STYLE_STRUCT_RESET(name, checkdata_cb, ctor_args)
-
- #include "nsStyleStructList.h"
-
- #undef STYLE_STRUCT_INHERITED
- #undef STYLE_STRUCT_RESET
- };
-
- void Destroy(PRUint32 aBits, nsPresContext* aContext) {
- #define STYLE_STRUCT_INHERITED(name, checkdata_cb, ctor_args) \
- if (m##name##Data && !(aBits & NS_STYLE_INHERIT_BIT(name))) \
- m##name##Data->Destroy(aContext);
- #define STYLE_STRUCT_RESET(name, checkdata_cb, ctor_args)
-
- #include "nsStyleStructList.h"
-
- #undef STYLE_STRUCT_INHERITED
- #undef STYLE_STRUCT_RESET
-
- aContext->FreeToShell(sizeof(nsInheritedStyleData), this);
- };
-
- nsInheritedStyleData() {
- #define STYLE_STRUCT_INHERITED(name, checkdata_cb, ctor_args) \
- m##name##Data = nsnull;
- #define STYLE_STRUCT_RESET(name, checkdata_cb, ctor_args)
-
- #include "nsStyleStructList.h"
-
- #undef STYLE_STRUCT_INHERITED
- #undef STYLE_STRUCT_RESET
-
- };
- };
-
- struct nsResetStyleData
- {
- nsResetStyleData()
- {
- #define STYLE_STRUCT_RESET(name, checkdata_cb, ctor_args) \
- m##name##Data = nsnull;
- #define STYLE_STRUCT_INHERITED(name, checkdata_cb, ctor_args)
-
- #include "nsStyleStructList.h"
-
- #undef STYLE_STRUCT_RESET
- #undef STYLE_STRUCT_INHERITED
- };
-
- void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
- return aContext->AllocateFromShell(sz);
- }
-
- void ClearInheritedData(PRUint32 aBits) {
- #define STYLE_STRUCT_RESET(name, checkdata_cb, ctor_args) \
- if (m##name##Data && (aBits & NS_STYLE_INHERIT_BIT(name))) \
- m##name##Data = nsnull;
- #define STYLE_STRUCT_INHERITED(name, checkdata_cb, ctor_args)
-
- #include "nsStyleStructList.h"
-
- #undef STYLE_STRUCT_RESET
- #undef STYLE_STRUCT_INHERITED
- };
-
- void Destroy(PRUint32 aBits, nsPresContext* aContext) {
- #define STYLE_STRUCT_RESET(name, checkdata_cb, ctor_args) \
- if (m##name##Data && !(aBits & NS_STYLE_INHERIT_BIT(name))) \
- m##name##Data->Destroy(aContext);
- #define STYLE_STRUCT_INHERITED(name, checkdata_cb, ctor_args)
-
- #include "nsStyleStructList.h"
-
- #undef STYLE_STRUCT_RESET
- #undef STYLE_STRUCT_INHERITED
-
- aContext->FreeToShell(sizeof(nsResetStyleData), this);
- };
-
- #define STYLE_STRUCT_RESET(name, checkdata_cb, ctor_args) \
- nsStyle##name * m##name##Data;
- #define STYLE_STRUCT_INHERITED(name, checkdata_cb, ctor_args)
-
- #include "nsStyleStructList.h"
-
- #undef STYLE_STRUCT_RESET
- #undef STYLE_STRUCT_INHERITED
-
- };
-
- struct nsCachedStyleData
- {
- struct StyleStructInfo {
- ptrdiff_t mCachedStyleDataOffset;
- ptrdiff_t mInheritResetOffset;
- PRBool mIsReset;
- };
-
- static StyleStructInfo gInfo[];
-
- nsInheritedStyleData* mInheritedData;
- nsResetStyleData* mResetData;
-
- static PRBool IsReset(const nsStyleStructID& aSID) {
- return gInfo[aSID].mIsReset;
- };
-
- static PRUint32 GetBitForSID(const nsStyleStructID& aSID) {
- return 1 << aSID;
- };
-
- NS_HIDDEN_(nsStyleStruct*) NS_FASTCALL GetStyleData(const nsStyleStructID& aSID) {
- // Each struct is stored at this.m##type##Data->m##name##Data where
- // |type| is either Inherit or Reset, and |name| is the name of the
- // style struct. The |gInfo| stores the offset of the appropriate
- // m##type##Data for the struct within nsCachedStyleData (|this|)
- // and the offset of the appropriate m##name##Data within the
- // m##type##Data. Note that if we don't have any reset structs,
- // then mResetData is null, and likewise for mInheritedData. This
- // saves us from having to go through the long if-else cascade into
- // which most compilers will turn a case statement.
-
- // NOTE: nsStyleContext::SetStyle works roughly the same way.
-
- const StyleStructInfo& info = gInfo[aSID];
-
- // Get either &mInheritedData or &mResetData.
- char* resetOrInheritSlot = NS_REINTERPRET_CAST(char*, this) + info.mCachedStyleDataOffset;
-
- // Get either mInheritedData or mResetData.
- char* resetOrInherit = NS_REINTERPRET_CAST(char*, *NS_REINTERPRET_CAST(void**, resetOrInheritSlot));
-
- nsStyleStruct* data = nsnull;
- if (resetOrInherit) {
- // If we have the mInheritedData or mResetData, then we might have
- // the struct, so get it.
- char* dataSlot = resetOrInherit + info.mInheritResetOffset;
- data = *NS_REINTERPRET_CAST(nsStyleStruct**, dataSlot);
- }
- return data;
- };
-
- NS_HIDDEN_(void) ClearInheritedData(PRUint32 aBits) {
- if (mResetData)
- mResetData->ClearInheritedData(aBits);
- if (mInheritedData)
- mInheritedData->ClearInheritedData(aBits);
- }
-
- NS_HIDDEN_(void) Destroy(PRUint32 aBits, nsPresContext* aContext) {
- if (mResetData)
- mResetData->Destroy(aBits, aContext);
- if (mInheritedData)
- mInheritedData->Destroy(aBits, aContext);
- mResetData = nsnull;
- mInheritedData = nsnull;
- }
-
- nsCachedStyleData() :mInheritedData(nsnull), mResetData(nsnull) {};
- ~nsCachedStyleData() {};
- };
-
- /**
- * nsRuleNode is a node in a lexicographic tree (the "rule tree")
- * indexed by style rules (implementations of nsIStyleRule).
- *
- * The rule tree is owned by the nsStyleSet and is destroyed when the
- * presentation of the document goes away. It is garbage-collected
- * (using mark-and-sweep garbage collection) during the lifetime of the
- * document (when dynamic changes cause the destruction of enough style
- * contexts). Rule nodes are marked if they are pointed to by a style
- * context or one of their descendants is.
- *
- * An nsStyleContext, which represents the computed style data for an
- * element, points to an nsRuleNode. The path from the root of the rule
- * tree to the nsStyleContext's mRuleNode gives the list of the rules
- * matched, from least important in the cascading order to most
- * important in the cascading order.
- *
- * The reason for using a lexicographic tree is that it allows for
- * sharing of style data, which saves both memory (for storing the
- * computed style data) and time (for computing them). This sharing
- * depends on the computed style data being stored in structs (nsStyle*)
- * that contain only properties that are inherited by default
- * ("inherited structs") or structs that contain only properties that
- * are not inherited by default ("reset structs"). The optimization
- * depends on the normal case being that style rules specify relatively
- * few properties and even that elements generally have relatively few
- * properties specified. This allows sharing in the following ways:
- * 1. [mainly reset structs] When a style data struct will contain the
- * same computed value for any elements that match the same set of
- * rules (common for reset structs), it can be stored on the
- * nsRuleNode instead of on the nsStyleContext.
- * 2. [only? reset structs] When (1) occurs, and an nsRuleNode doesn't
- * have any rules that change the values in the struct, the
- * nsRuleNode can share that struct with its parent nsRuleNode.
- * 3. [mainly inherited structs] When an element doesn't match any
- * rules that change the value of a property (or, in the edge case,
- * when all the values specified are 'inherit'), the nsStyleContext
- * can use the same nsStyle* struct as its parent nsStyleContext.
- *
- * Since the data represented by an nsIStyleRule are immutable, the data
- * represented by an nsRuleNode are also immutable (with a few
- * exceptions, like system color changes).
- */
-
- class nsRuleNode {
- public:
- // for purposes of the RuleDetail (and related code),
- // * a non-inherited value is one that is specified as a
- // non-"inherit" value or as an "inherit" value that is reflected
- // in the struct and to the user of the style system with an
- // eCSSUnit_Inherit value
- // * an inherited value is one that is specified as "inherit" and
- // where the inheritance is computed by the style system
- enum RuleDetail {
- eRuleNone, // No props have been specified at all.
- eRulePartialReset, // At least one prop with a non-inherited value
- // has been specified. No props have been
- // specified with an inherited value. At least
- // one prop remains unspecified.
- eRulePartialMixed, // At least one prop with a non-inherited value
- // has been specified. Some props may also have
- // been specified with an inherited value. At
- // least one prop remains unspecified.
- eRulePartialInherited, // Only props with inherited values have
- // have been specified. At least one prop
- // remains unspecified.
- eRuleFullReset, // All props have been specified. None has an
- // inherited value.
- eRuleFullMixed, // All props have been specified. At least one has
- // a non-inherited value.
- eRuleFullInherited, // All props have been specified with inherited
- // values.
- eRuleUnknown // Information unknown (used as a result from a check
- // callback to trigger the normal checking codepath)
- };
-
- private:
- nsPresContext* mPresContext; // Our pres context.
-
- nsRuleNode* mParent; // A pointer to the parent node in the tree.
- // This enables us to walk backwards from the
- // most specific rule matched to the least
- // specific rule (which is the optimal order to
- // use for lookups of style properties.
- nsIStyleRule* mRule; // [STRONG] A pointer to our specific rule.
-
- // The children of this node are stored in either a hashtable or list
- // that maps from rules to our nsRuleNode children. When matching
- // rules, we use this mapping to transition from node to node
- // (constructing new nodes as needed to flesh out the tree).
-
- void *mChildrenTaggedPtr; // Accessed only through the methods below.
-
- enum {
- kTypeMask = 0x1,
- kListType = 0x0,
- kHashType = 0x1
- };
- enum {
- // Maximum to have in a list before converting to a hashtable.
- // XXX Need to optimize this.
- kMaxChildrenInList = 32
- };
-
- PRBool HaveChildren() {
- return mChildrenTaggedPtr != nsnull;
- }
- PRBool ChildrenAreHashed() {
- return (PRWord(mChildrenTaggedPtr) & kTypeMask) == kHashType;
- }
- nsRuleList* ChildrenList() {
- return NS_REINTERPRET_CAST(nsRuleList*, mChildrenTaggedPtr);
- }
- nsRuleList** ChildrenListPtr() {
- return NS_REINTERPRET_CAST(nsRuleList**, &mChildrenTaggedPtr);
- }
- PLDHashTable* ChildrenHash() {
- return (PLDHashTable*) (PRWord(mChildrenTaggedPtr) & ~PRWord(kTypeMask));
- }
- void SetChildrenList(nsRuleList *aList) {
- NS_ASSERTION(!(PRWord(aList) & kTypeMask),
- "pointer not 2-byte aligned");
- mChildrenTaggedPtr = aList;
- }
- void SetChildrenHash(PLDHashTable *aHashtable) {
- NS_ASSERTION(!(PRWord(aHashtable) & kTypeMask),
- "pointer not 2-byte aligned");
- mChildrenTaggedPtr = (void*)(PRWord(aHashtable) | kHashType);
- }
- void ConvertChildrenToHash();
-
- nsCachedStyleData mStyleData; // Any data we cached on the rule node.
-
- PRUint32 mDependentBits; // Used to cache the fact that we can look up
- // cached data under a parent rule.
-
- PRUint32 mNoneBits; // Used to cache the fact that the branch to this
- // node specifies no non-inherited data for a
- // given struct type. (This usually implies that
- // the entire branch specifies no non-inherited
- // data, although not necessarily, if a
- // non-inherited value is overridden by an
- // explicit 'inherit' value.) For example, if an
- // entire rule branch specifies no color
- // information, then a bit will be set along every
- // rule node on that branch, so that you can break
- // out of the rule tree early and just inherit
- // from the parent style context. The presence of
- // this bit means we should just get inherited
- // data from the parent style context, and it is
- // never used for reset structs since their
- // Compute*Data functions don't initialize from
- // inherited data.
-
- friend struct nsRuleList;
-
- public:
- // Overloaded new operator. Initializes the memory to 0 and relies on an arena
- // (which comes from the presShell) to perform the allocation.
- NS_HIDDEN_(void*) operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW;
- NS_HIDDEN_(void) Destroy();
- static NS_HIDDEN_(nsILanguageAtomService*) gLangService;
-
- protected:
- NS_HIDDEN_(void) PropagateDependentBit(PRUint32 aBit,
- nsRuleNode* aHighestNode);
- NS_HIDDEN_(void) PropagateNoneBit(PRUint32 aBit, nsRuleNode* aHighestNode);
-
- NS_HIDDEN_(const nsStyleStruct*) SetDefaultOnRoot(const nsStyleStructID aSID,
- nsStyleContext* aContext);
-
- NS_HIDDEN_(const nsStyleStruct*)
- WalkRuleTree(const nsStyleStructID aSID, nsStyleContext* aContext,
- nsRuleData* aRuleData, nsRuleDataStruct* aSpecificData);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeDisplayData(nsStyleStruct* aStartDisplay,
- const nsRuleDataStruct& aDisplayData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeVisibilityData(nsStyleStruct* aStartVisibility,
- const nsRuleDataStruct& aDisplayData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeFontData(nsStyleStruct* aStartFont,
- const nsRuleDataStruct& aFontData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeColorData(nsStyleStruct* aStartColor,
- const nsRuleDataStruct& aColorData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeBackgroundData(nsStyleStruct* aStartBackground,
- const nsRuleDataStruct& aColorData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeMarginData(nsStyleStruct* aStartMargin,
- const nsRuleDataStruct& aMarginData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeBorderData(nsStyleStruct* aStartBorder,
- const nsRuleDataStruct& aMarginData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputePaddingData(nsStyleStruct* aStartPadding,
- const nsRuleDataStruct& aMarginData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeOutlineData(nsStyleStruct* aStartOutline,
- const nsRuleDataStruct& aMarginData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeListData(nsStyleStruct* aStartList,
- const nsRuleDataStruct& aListData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputePositionData(nsStyleStruct* aStartPosition,
- const nsRuleDataStruct& aPositionData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeTableData(nsStyleStruct* aStartTable,
- const nsRuleDataStruct& aTableData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeTableBorderData(nsStyleStruct* aStartTable,
- const nsRuleDataStruct& aTableData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeContentData(nsStyleStruct* aStartContent,
- const nsRuleDataStruct& aData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeQuotesData(nsStyleStruct* aStartQuotes,
- const nsRuleDataStruct& aData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeTextData(nsStyleStruct* aStartData, const nsRuleDataStruct& aData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeTextResetData(nsStyleStruct* aStartData,
- const nsRuleDataStruct& aData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeUserInterfaceData(nsStyleStruct* aStartData,
- const nsRuleDataStruct& aData,
- nsStyleContext* aContext,
- nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeUIResetData(nsStyleStruct* aStartData,
- const nsRuleDataStruct& aData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeXULData(nsStyleStruct* aStartXUL, const nsRuleDataStruct& aXULData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeColumnData(nsStyleStruct* aStartColumn, const nsRuleDataStruct& aColumnData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- #ifdef MOZ_SVG
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeSVGData(nsStyleStruct* aStartSVG, const nsRuleDataStruct& aSVGData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
-
- NS_HIDDEN_(const nsStyleStruct*)
- ComputeSVGResetData(nsStyleStruct* aStartSVG,
- const nsRuleDataStruct& aSVGData,
- nsStyleContext* aContext, nsRuleNode* aHighestNode,
- const RuleDetail& aRuleDetail, PRBool aInherited);
- #endif
-
- // helpers for |ComputeFontData| that need access to |mNoneBits|:
- static NS_HIDDEN_(void) SetFont(nsPresContext* aPresContext,
- nsStyleContext* aContext,
- nscoord aMinFontSize,
- PRBool aUseDocumentFonts,
- PRBool aIsGeneric,
- const nsRuleDataFont& aFontData,
- const nsFont& aDefaultFont,
- const nsStyleFont* aParentFont,
- nsStyleFont* aFont, PRBool& aInherited);
-
- static NS_HIDDEN_(void) SetGenericFont(nsPresContext* aPresContext,
- nsStyleContext* aContext,
- const nsRuleDataFont& aFontData,
- PRUint8 aGenericFontID,
- nscoord aMinFontSize,
- PRBool aUseDocumentFonts,
- nsStyleFont* aFont);
-
- NS_HIDDEN_(void) AdjustLogicalBoxProp(nsStyleContext* aContext,
- const nsCSSValue& aLTRSource,
- const nsCSSValue& aRTLSource,
- const nsCSSValue& aLTRLogicalValue,
- const nsCSSValue& aRTLLogicalValue,
- const nsStyleSides& aParentRect,
- nsStyleSides& aRect,
- PRUint8 aSide,
- PRInt32 aMask,
- PRBool& aInherited);
-
- inline RuleDetail CheckSpecifiedProperties(const nsStyleStructID aSID, const nsRuleDataStruct& aRuleDataStruct);
-
- NS_HIDDEN_(const nsStyleStruct*) GetParentData(const nsStyleStructID aSID);
- NS_HIDDEN_(const nsStyleStruct*) GetDisplayData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetVisibilityData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetFontData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetColorData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetBackgroundData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetMarginData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetBorderData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetPaddingData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetOutlineData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetListData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetPositionData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetTableData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*)
- GetTableBorderData(nsStyleContext* aContext);
-
- NS_HIDDEN_(const nsStyleStruct*) GetContentData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetQuotesData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetTextData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetTextResetData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*)
- GetUserInterfaceData(nsStyleContext* aContext);
-
- NS_HIDDEN_(const nsStyleStruct*) GetUIResetData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetXULData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetColumnData(nsStyleContext* aContext);
- #ifdef MOZ_SVG
- NS_HIDDEN_(const nsStyleStruct*) GetSVGData(nsStyleContext* aContext);
- NS_HIDDEN_(const nsStyleStruct*) GetSVGResetData(nsStyleContext* aContext);
- #endif
-
- public:
- nsRuleNode(nsPresContext* aPresContext, nsIStyleRule* aRule,
- nsRuleNode* aParent) NS_HIDDEN;
- virtual ~nsRuleNode() NS_HIDDEN;
-
- static NS_HIDDEN_(nsRuleNode*) CreateRootNode(nsPresContext* aPresContext);
-
- NS_HIDDEN_(nsresult) Transition(nsIStyleRule* aRule, nsRuleNode** aResult);
- nsRuleNode* GetParent() const { return mParent; }
- PRBool IsRoot() const { return mParent == nsnull; }
-
- // NOTE: Does not |AddRef|.
- nsIStyleRule* GetRule() const { return mRule; }
- // NOTE: Does not |AddRef|.
- nsPresContext* GetPresContext() const { return mPresContext; }
-
- NS_HIDDEN_(nsresult) ClearStyleData();
- NS_HIDDEN_(const nsStyleStruct*) GetStyleData(nsStyleStructID aSID,
- nsStyleContext* aContext,
- PRBool aComputeData);
-
- /*
- * Garbage collection. Mark walks up the tree, marking any unmarked
- * ancestors until it reaches a marked one. Sweep recursively sweeps
- * the children, destroys any that are unmarked, and clears marks,
- * returning true if the node on which it was called was destroyed.
- */
- NS_HIDDEN_(void) Mark();
- NS_HIDDEN_(PRBool) Sweep();
- };
-
- #endif
-