mirror of
https://github.com/mozilla/gecko-dev.git
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202 lines
7.7 KiB
C++
202 lines
7.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Daniel Glazman <glazman@netscape.com>
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*
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsCSSDeclaration_h___
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#define nsCSSDeclaration_h___
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#include "nsISupports.h"
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#include "nsColor.h"
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#include <stdio.h>
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#include "nsString.h"
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#include "nsCoord.h"
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#include "nsCSSValue.h"
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#include "nsCSSProps.h"
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#include "nsVoidArray.h"
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#include "nsValueArray.h"
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#include "nsCSSStruct.h"
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class nsCSSDeclaration {
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public:
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nsCSSDeclaration(void);
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nsCSSDeclaration(const nsCSSDeclaration& aCopy);
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public:
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NS_DECL_ZEROING_OPERATOR_NEW
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nsCSSStruct* GetData(const nsID& aSID);
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nsCSSStruct* EnsureData(const nsID& aSID);
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nsresult AppendValue(nsCSSProperty aProperty, const nsCSSValue& aValue);
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nsresult AppendStructValue(nsCSSProperty aProperty, void* aStruct);
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nsresult SetValueImportant(nsCSSProperty aProperty);
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nsresult AppendComment(const nsAString& aComment);
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nsresult RemoveProperty(nsCSSProperty aProperty, nsCSSValue& aValue);
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nsresult GetValue(nsCSSProperty aProperty, nsCSSValue& aValue);
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nsresult GetValue(nsCSSProperty aProperty, nsAString& aValue);
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nsresult GetValue(const nsAString& aProperty, nsAString& aValue);
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nsCSSDeclaration* GetImportantValues();
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PRBool GetValueIsImportant(nsCSSProperty aProperty);
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PRBool GetValueIsImportant(const nsAString& aProperty);
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PRUint32 Count();
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nsresult GetNthProperty(PRUint32 aIndex, nsAString& aReturn);
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nsChangeHint GetStyleImpact() const;
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nsresult ToString(nsAString& aString);
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nsCSSDeclaration* Clone() const;
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#ifdef DEBUG
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void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
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#endif
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protected:
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nsresult RemoveProperty(nsCSSProperty aProperty);
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private:
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nsresult GetValueOrImportantValue(nsCSSProperty aProperty, nsCSSValue& aValue);
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void AppendImportanceToString(PRBool aIsImportant, nsAString& aString);
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PRBool AppendValueToString(nsCSSProperty aProperty, nsAString& aResult);
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PRBool AppendValueOrImportantValueToString(nsCSSProperty aProperty, nsAString& aResult);
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PRBool AppendValueToString(nsCSSProperty aProperty, const nsCSSValue& aValue, nsAString& aResult);
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nsCSSDeclaration& operator=(const nsCSSDeclaration& aCopy);
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PRBool operator==(const nsCSSDeclaration& aCopy) const;
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void PropertyIsSet(PRInt32 & aPropertyIndex, PRInt32 aIndex, PRUint32 & aSet, PRUint32 aValue);
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PRBool TryBorderShorthand(nsAString & aString, PRUint32 aPropertiesSet,
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PRInt32 aBorderTopWidth,
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PRInt32 aBorderTopStyle,
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PRInt32 aBorderTopColor,
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PRInt32 aBorderBottomWidth,
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PRInt32 aBorderBottomStyle,
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PRInt32 aBorderBottomColor,
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PRInt32 aBorderLeftWidth,
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PRInt32 aBorderLeftStyle,
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PRInt32 aBorderLeftColor,
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PRInt32 aBorderRightWidth,
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PRInt32 aBorderRightStyle,
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PRInt32 aBorderRightColor);
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PRBool TryBorderSideShorthand(nsAString & aString,
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nsCSSProperty aShorthand,
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PRInt32 aBorderWidth,
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PRInt32 aBorderStyle,
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PRInt32 aBorderColor);
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PRBool TryFourSidesShorthand(nsAString & aString,
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nsCSSProperty aShorthand,
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PRInt32 & aTop,
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PRInt32 & aBottom,
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PRInt32 & aLeft,
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PRInt32 & aRight,
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PRBool aClearIndexes);
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void DoClipShorthand(nsAString & aString,
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PRInt32 aTop,
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PRInt32 aBottom,
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PRInt32 aLeft,
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PRInt32 aRight);
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void TryBackgroundShorthand(nsAString & aString,
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PRInt32 & aBgColor, PRInt32 & aBgImage,
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PRInt32 & aBgRepeat, PRInt32 & aBgAttachment,
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PRInt32 & aBgPositionX,
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PRInt32 & aBgPositionY);
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void UseBackgroundPosition(nsAString & aString,
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PRInt32 & aBgPositionX,
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PRInt32 & aBgPositionY);
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PRBool AllPropertiesSameImportance(PRInt32 aFirst, PRInt32 aSecond,
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PRInt32 aThird, PRInt32 aFourth,
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PRInt32 aFifth, PRInt32 aSixth,
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PRBool & aImportance);
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PRBool AllPropertiesSameValue(PRInt32 aFirst, PRInt32 aSecond,
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PRInt32 aThird, PRInt32 aFourth);
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void AppendPropertyAndValueToString(nsCSSProperty aProperty,
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nsAString& aResult);
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protected:
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//
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// Specialized ref counting.
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// We do not want everyone to ref count us, only the rules which hold
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// onto us (our well defined lifetime is when the last rule releases
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// us).
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// It's worth a comment here that the main nsCSSDeclaration is refcounted,
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// but it's |mImportant| is not refcounted, but just owned by the
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// non-important declaration.
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//
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friend class CSSStyleRuleImpl;
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void AddRef(void) {
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mRuleRefs++;
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}
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void Release(void) {
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NS_ASSERTION(0 < mRuleRefs, "bad Release");
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if (0 == --mRuleRefs) {
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delete this;
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}
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}
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public:
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void RuleAbort(void) {
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NS_ASSERTION(0 == mRuleRefs, "bad RuleAbort");
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delete this;
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}
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protected:
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//
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// Block everyone, except us or a derivitive, from deleting us.
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//
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~nsCSSDeclaration(void);
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private:
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nsValueArray* mOrder;
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nsCSSDeclaration* mImportant;
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nsSmallVoidArray mStructs;
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//
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// Keep these two together, as they should pack.
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//
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nsCSSDeclRefCount mRuleRefs;
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nsCSSDeclContains mContains;
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};
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nsresult
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NS_NewCSSDeclaration(nsCSSDeclaration** aInstancePtrResult);
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#endif /* nsCSSDeclaration_h___ */
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