зеркало из https://github.com/mozilla/pjs.git
285 строки
10 KiB
C++
285 строки
10 KiB
C++
/* -*- 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.org 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):
|
|
* Daniel Glazman <glazman@netscape.com>
|
|
* L. David Baron <dbaron@dbaron.org>, Mozilla Corporation
|
|
*
|
|
* 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 ***** */
|
|
|
|
/*
|
|
* representation of CSS style rules (selectors+declaration) and CSS
|
|
* selectors
|
|
*/
|
|
|
|
#ifndef nsICSSStyleRule_h___
|
|
#define nsICSSStyleRule_h___
|
|
|
|
//#include <stdio.h>
|
|
#include "nsICSSRule.h"
|
|
#include "nsString.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsCSSProps.h"
|
|
#include "nsCSSValue.h"
|
|
#include "nsIAtom.h"
|
|
|
|
class nsIAtom;
|
|
class nsCSSDeclaration;
|
|
class nsICSSStyleSheet;
|
|
|
|
struct nsAtomList {
|
|
public:
|
|
nsAtomList(nsIAtom* aAtom);
|
|
nsAtomList(const nsString& aAtomValue);
|
|
~nsAtomList(void);
|
|
|
|
/** Do a deep clone. Should be used only on the first in the linked list. */
|
|
nsAtomList* Clone() const { return Clone(PR_TRUE); }
|
|
|
|
nsCOMPtr<nsIAtom> mAtom;
|
|
nsAtomList* mNext;
|
|
private:
|
|
nsAtomList* Clone(PRBool aDeep) const;
|
|
|
|
// These are not supported and are not implemented!
|
|
nsAtomList(const nsAtomList& aCopy);
|
|
nsAtomList& operator=(const nsAtomList& aCopy);
|
|
};
|
|
|
|
struct nsPseudoClassList {
|
|
public:
|
|
nsPseudoClassList(nsIAtom* aAtom);
|
|
nsPseudoClassList(nsIAtom* aAtom, const PRUnichar *aString);
|
|
nsPseudoClassList(nsIAtom* aAtom, const PRInt32 *aIntPair);
|
|
~nsPseudoClassList(void);
|
|
|
|
/** Do a deep clone. Should be used only on the first in the linked list. */
|
|
nsPseudoClassList* Clone() const { return Clone(PR_TRUE); }
|
|
|
|
nsCOMPtr<nsIAtom> mAtom;
|
|
union {
|
|
// For a given value of mAtom, we have either:
|
|
// a. no value, which means mMemory is always null
|
|
// (if neither of the conditions for (b) or (c) is true)
|
|
// b. a string value, which means mString/mMemory is non-null
|
|
// (if nsCSSPseudoClasses::HasStringArg(mAtom))
|
|
// c. an integer pair value, which means mNumbers/mMemory is non-null
|
|
// (if nsCSSPseudoClasses::HasNthPairArg(mAtom))
|
|
void* mMemory; // both pointer types use NS_Alloc/NS_Free
|
|
PRUnichar* mString;
|
|
PRInt32* mNumbers;
|
|
} u;
|
|
nsPseudoClassList* mNext;
|
|
private:
|
|
nsPseudoClassList* Clone(PRBool aDeep) const;
|
|
|
|
// These are not supported and are not implemented!
|
|
nsPseudoClassList(const nsPseudoClassList& aCopy);
|
|
nsPseudoClassList& operator=(const nsPseudoClassList& aCopy);
|
|
};
|
|
|
|
#define NS_ATTR_FUNC_SET 0 // [attr]
|
|
#define NS_ATTR_FUNC_EQUALS 1 // [attr=value]
|
|
#define NS_ATTR_FUNC_INCLUDES 2 // [attr~=value] (space separated)
|
|
#define NS_ATTR_FUNC_DASHMATCH 3 // [attr|=value] ('-' truncated)
|
|
#define NS_ATTR_FUNC_BEGINSMATCH 4 // [attr^=value] (begins with)
|
|
#define NS_ATTR_FUNC_ENDSMATCH 5 // [attr$=value] (ends with)
|
|
#define NS_ATTR_FUNC_CONTAINSMATCH 6 // [attr*=value] (contains substring)
|
|
|
|
struct nsAttrSelector {
|
|
public:
|
|
nsAttrSelector(PRInt32 aNameSpace, const nsString& aAttr);
|
|
nsAttrSelector(PRInt32 aNameSpace, const nsString& aAttr, PRUint8 aFunction,
|
|
const nsString& aValue, PRBool aCaseSensitive);
|
|
nsAttrSelector(PRInt32 aNameSpace, nsIAtom* aAttr, PRUint8 aFunction,
|
|
const nsString& aValue, PRBool aCaseSensitive);
|
|
~nsAttrSelector(void);
|
|
|
|
/** Do a deep clone. Should be used only on the first in the linked list. */
|
|
nsAttrSelector* Clone() const { return Clone(PR_TRUE); }
|
|
|
|
PRInt32 mNameSpace;
|
|
nsCOMPtr<nsIAtom> mAttr;
|
|
PRUint8 mFunction;
|
|
PRPackedBool mCaseSensitive;
|
|
nsString mValue;
|
|
nsAttrSelector* mNext;
|
|
private:
|
|
nsAttrSelector* Clone(PRBool aDeep) const;
|
|
|
|
// These are not supported and are not implemented!
|
|
nsAttrSelector(const nsAttrSelector& aCopy);
|
|
nsAttrSelector& operator=(const nsAttrSelector& aCopy);
|
|
};
|
|
|
|
struct nsCSSSelector {
|
|
public:
|
|
nsCSSSelector(void);
|
|
~nsCSSSelector(void);
|
|
|
|
/** Do a deep clone. Should be used only on the first in the linked list. */
|
|
nsCSSSelector* Clone() const { return Clone(PR_TRUE, PR_TRUE); }
|
|
|
|
void Reset(void);
|
|
void SetNameSpace(PRInt32 aNameSpace);
|
|
void SetTag(const nsString& aTag);
|
|
void AddID(const nsString& aID);
|
|
void AddClass(const nsString& aClass);
|
|
void AddPseudoClass(nsIAtom* aPseudoClass);
|
|
void AddPseudoClass(nsIAtom* aPseudoClass, const PRUnichar* aString);
|
|
void AddPseudoClass(nsIAtom* aPseudoClass, const PRInt32* aIntPair);
|
|
void AddAttribute(PRInt32 aNameSpace, const nsString& aAttr);
|
|
void AddAttribute(PRInt32 aNameSpace, const nsString& aAttr, PRUint8 aFunc,
|
|
const nsString& aValue, PRBool aCaseSensitive);
|
|
void SetOperator(PRUnichar aOperator);
|
|
|
|
PRInt32 CalcWeight(void) const;
|
|
|
|
void ToString(nsAString& aString, nsICSSStyleSheet* aSheet,
|
|
PRBool aAppend = PR_FALSE) const;
|
|
|
|
private:
|
|
void AddPseudoClassInternal(nsPseudoClassList *aPseudoClass);
|
|
nsCSSSelector* Clone(PRBool aDeepNext, PRBool aDeepNegations) const;
|
|
|
|
void AppendNegationToString(nsAString& aString);
|
|
void ToStringInternal(nsAString& aString, nsICSSStyleSheet* aSheet,
|
|
PRBool aIsPseudoElem,
|
|
PRBool aIsNegated) const;
|
|
|
|
public:
|
|
PRInt32 mNameSpace;
|
|
nsCOMPtr<nsIAtom> mTag;
|
|
nsAtomList* mIDList;
|
|
nsAtomList* mClassList;
|
|
nsPseudoClassList* mPseudoClassList; // atom for the pseudo, string for
|
|
// the argument to functional pseudos
|
|
nsAttrSelector* mAttrList;
|
|
PRUnichar mOperator;
|
|
nsCSSSelector* mNegations;
|
|
|
|
nsCSSSelector* mNext;
|
|
private:
|
|
// These are not supported and are not implemented!
|
|
nsCSSSelector(const nsCSSSelector& aCopy);
|
|
nsCSSSelector& operator=(const nsCSSSelector& aCopy);
|
|
};
|
|
|
|
/**
|
|
* A selector list is the unit of selectors that each style rule has.
|
|
* For example, "P B, H1 B { ... }" would be a selector list with two
|
|
* items (where each |nsCSSSelectorList| object's |mSelectors| has
|
|
* an |mNext| for the P or H1). We represent them as linked lists.
|
|
*/
|
|
struct nsCSSSelectorList {
|
|
nsCSSSelectorList(void);
|
|
~nsCSSSelectorList(void);
|
|
|
|
/**
|
|
* Push the selector pointed to by |aSelector| on to the beginning of
|
|
* |mSelectors|, setting its |mNext| to the current value of |mSelectors|.
|
|
* This nulls out aSelector.
|
|
*
|
|
* The caller is responsible for updating |mWeight|.
|
|
*/
|
|
void AddSelector(nsAutoPtr<nsCSSSelector>& aSelector);
|
|
|
|
/**
|
|
* Should be used only on the first in the list
|
|
*/
|
|
void ToString(nsAString& aResult, nsICSSStyleSheet* aSheet);
|
|
|
|
/**
|
|
* Do a deep clone. Should be used only on the first in the list.
|
|
*/
|
|
nsCSSSelectorList* Clone() const { return Clone(PR_TRUE); }
|
|
|
|
nsCSSSelector* mSelectors;
|
|
PRInt32 mWeight;
|
|
nsCSSSelectorList* mNext;
|
|
private:
|
|
nsCSSSelectorList* Clone(PRBool aDeep) const;
|
|
|
|
// These are not supported and are not implemented!
|
|
nsCSSSelectorList(const nsCSSSelectorList& aCopy);
|
|
nsCSSSelectorList& operator=(const nsCSSSelectorList& aCopy);
|
|
};
|
|
|
|
// IID for the nsICSSStyleRule interface {00803ccc-66e8-4ec8-a037-45e901bb5304}
|
|
#define NS_ICSS_STYLE_RULE_IID \
|
|
{0x00803ccc, 0x66e8, 0x4ec8, {0xa0, 0x37, 0x45, 0xe9, 0x01, 0xbb, 0x53, 0x04}}
|
|
|
|
class nsICSSStyleRule : public nsICSSRule {
|
|
public:
|
|
NS_DECLARE_STATIC_IID_ACCESSOR(NS_ICSS_STYLE_RULE_IID)
|
|
|
|
// null for style attribute
|
|
virtual nsCSSSelectorList* Selector(void) = 0;
|
|
|
|
virtual PRUint32 GetLineNumber(void) const = 0;
|
|
virtual void SetLineNumber(PRUint32 aLineNumber) = 0;
|
|
|
|
virtual nsCSSDeclaration* GetDeclaration(void) const = 0;
|
|
|
|
/**
|
|
* Return a new |nsIStyleRule| instance that replaces the current one,
|
|
* due to a change in the |nsCSSDeclaration|. Due to the
|
|
* |nsIStyleRule| contract of immutability, this must be called if the
|
|
* declaration is modified.
|
|
*
|
|
* |DeclarationChanged| handles replacing the object in the container
|
|
* sheet or group rule if |aHandleContainer| is true.
|
|
*/
|
|
virtual already_AddRefed<nsICSSStyleRule>
|
|
DeclarationChanged(PRBool aHandleContainer) = 0;
|
|
|
|
virtual already_AddRefed<nsIStyleRule> GetImportantRule(void) = 0;
|
|
|
|
// hooks for DOM rule
|
|
virtual nsresult GetCssText(nsAString& aCssText) = 0;
|
|
virtual nsresult SetCssText(const nsAString& aCssText) = 0;
|
|
virtual nsresult GetParentStyleSheet(nsICSSStyleSheet** aSheet) = 0;
|
|
virtual nsresult GetParentRule(nsICSSGroupRule** aParentRule) = 0;
|
|
virtual nsresult GetSelectorText(nsAString& aSelectorText) = 0;
|
|
virtual nsresult SetSelectorText(const nsAString& aSelectorText) = 0;
|
|
};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(nsICSSStyleRule, NS_ICSS_STYLE_RULE_IID)
|
|
|
|
nsresult
|
|
NS_NewCSSStyleRule(nsICSSStyleRule** aInstancePtrResult,
|
|
nsCSSSelectorList* aSelector,
|
|
nsCSSDeclaration* aDeclaration);
|
|
|
|
#endif /* nsICSSStyleRule_h___ */
|