forked from mirrors/gecko-dev
		
	
		
			
				
	
	
		
			3455 lines
		
	
	
	
		
			106 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			3455 lines
		
	
	
	
		
			106 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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| /* vim: set ts=8 sts=2 et sw=2 tw=80: */
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| /* This Source Code Form is subject to the terms of the Mozilla Public
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|  * License, v. 2.0. If a copy of the MPL was not distributed with this
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|  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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| 
 | |
| /* representation of simple property values within CSS declarations */
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| 
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| #include "nsCSSValue.h"
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| 
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| #include "mozilla/ServoBindings.h"
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| #include "mozilla/ServoStyleSet.h"
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| #include "mozilla/ServoTypes.h"
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| #include "mozilla/StyleSheetInlines.h"
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| #include "mozilla/Likely.h"
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| #include "mozilla/MemoryReporting.h"
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| #include "mozilla/css/ImageLoader.h"
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| #include "CSSCalc.h"
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| #include "gfxFontConstants.h"
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| #include "imgIRequest.h"
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| #include "imgRequestProxy.h"
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| #include "nsIDocument.h"
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| #include "nsCSSProps.h"
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| #include "nsNetUtil.h"
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| #include "nsPresContext.h"
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| #include "nsStyleUtil.h"
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| #include "nsDeviceContext.h"
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| #include "nsStyleSet.h"
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| #include "nsContentUtils.h"
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| 
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| using namespace mozilla;
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| using namespace mozilla::css;
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| 
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| template<class T>
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| static bool MightHaveRef(const T& aString)
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| {
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|   const typename T::char_type* current = aString.BeginReading();
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|   for (; current != aString.EndReading(); current++) {
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|     if (*current == '#') {
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|       return true;
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|     }
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|   }
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| 
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|   return false;
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| }
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| 
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| nsCSSValue::nsCSSValue(int32_t aValue, nsCSSUnit aUnit)
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|   : mUnit(aUnit)
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| {
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|   MOZ_ASSERT(aUnit == eCSSUnit_Integer || aUnit == eCSSUnit_Enumerated ||
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|              aUnit == eCSSUnit_EnumColor,
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|              "not an int value");
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|   if (aUnit == eCSSUnit_Integer || aUnit == eCSSUnit_Enumerated ||
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|       aUnit == eCSSUnit_EnumColor) {
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|     mValue.mInt = aValue;
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|   }
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|   else {
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|     mUnit = eCSSUnit_Null;
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|     mValue.mInt = 0;
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|   }
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| }
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| 
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| nsCSSValue::nsCSSValue(float aValue, nsCSSUnit aUnit)
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|   : mUnit(aUnit)
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| {
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|   MOZ_ASSERT(eCSSUnit_Percent <= aUnit, "not a float value");
 | |
|   if (eCSSUnit_Percent <= aUnit) {
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|     mValue.mFloat = aValue;
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|     MOZ_ASSERT(!mozilla::IsNaN(mValue.mFloat));
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|   }
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|   else {
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|     mUnit = eCSSUnit_Null;
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|     mValue.mInt = 0;
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|   }
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| }
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| 
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| nsCSSValue::nsCSSValue(const nsString& aValue, nsCSSUnit aUnit)
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|   : mUnit(aUnit)
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| {
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|   MOZ_ASSERT(UnitHasStringValue(), "not a string value");
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|   if (UnitHasStringValue()) {
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|     mValue.mString = BufferFromString(aValue).take();
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|   }
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|   else {
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|     mUnit = eCSSUnit_Null;
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|     mValue.mInt = 0;
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|   }
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| }
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| 
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| nsCSSValue::nsCSSValue(nsCSSValue::Array* aValue, nsCSSUnit aUnit)
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|   : mUnit(aUnit)
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| {
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|   MOZ_ASSERT(UnitHasArrayValue(), "bad unit");
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|   mValue.mArray = aValue;
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|   mValue.mArray->AddRef();
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| }
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| 
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| nsCSSValue::nsCSSValue(mozilla::css::URLValue* aValue)
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|   : mUnit(eCSSUnit_URL)
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| {
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|   mValue.mURL = aValue;
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|   mValue.mURL->AddRef();
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| }
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| 
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| nsCSSValue::nsCSSValue(mozilla::css::ImageValue* aValue)
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|   : mUnit(eCSSUnit_Image)
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| {
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|   mValue.mImage = aValue;
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|   mValue.mImage->AddRef();
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| }
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| 
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| nsCSSValue::nsCSSValue(nsCSSValueGradient* aValue)
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|   : mUnit(eCSSUnit_Gradient)
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| {
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|   mValue.mGradient = aValue;
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|   mValue.mGradient->AddRef();
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| }
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| 
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| nsCSSValue::nsCSSValue(nsCSSValueTokenStream* aValue)
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|   : mUnit(eCSSUnit_TokenStream)
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| {
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|   mValue.mTokenStream = aValue;
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|   mValue.mTokenStream->AddRef();
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| }
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| 
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| nsCSSValue::nsCSSValue(mozilla::css::GridTemplateAreasValue* aValue)
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|   : mUnit(eCSSUnit_GridTemplateAreas)
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| {
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|   mValue.mGridTemplateAreas = aValue;
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|   mValue.mGridTemplateAreas->AddRef();
 | |
| }
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| 
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| nsCSSValue::nsCSSValue(SharedFontList* aValue)
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|   : mUnit(eCSSUnit_FontFamilyList)
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| {
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|   mValue.mFontFamilyList = aValue;
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|   mValue.mFontFamilyList->AddRef();
 | |
| }
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| 
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| nsCSSValue::nsCSSValue(const nsCSSValue& aCopy)
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|   : mUnit(aCopy.mUnit)
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| {
 | |
|   if (mUnit <= eCSSUnit_DummyInherit) {
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|     // nothing to do, but put this important case first
 | |
|   }
 | |
|   else if (eCSSUnit_Percent <= mUnit) {
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|     mValue.mFloat = aCopy.mValue.mFloat;
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|     MOZ_ASSERT(!mozilla::IsNaN(mValue.mFloat));
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|   }
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|   else if (UnitHasStringValue()) {
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|     mValue.mString = aCopy.mValue.mString;
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|     mValue.mString->AddRef();
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|   }
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|   else if (eCSSUnit_Integer <= mUnit && mUnit <= eCSSUnit_EnumColor) {
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|     mValue.mInt = aCopy.mValue.mInt;
 | |
|   }
 | |
|   else if (IsIntegerColorUnit()) {
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|     mValue.mColor = aCopy.mValue.mColor;
 | |
|   }
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|   else if (IsFloatColorUnit()) {
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|     mValue.mFloatColor = aCopy.mValue.mFloatColor;
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|     mValue.mFloatColor->AddRef();
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|   }
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|   else if (eCSSUnit_ComplexColor == mUnit) {
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|     mValue.mComplexColor = aCopy.mValue.mComplexColor;
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|     mValue.mComplexColor->AddRef();
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|   }
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|   else if (UnitHasArrayValue()) {
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|     mValue.mArray = aCopy.mValue.mArray;
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|     mValue.mArray->AddRef();
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|   }
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|   else if (eCSSUnit_URL == mUnit) {
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|     mValue.mURL = aCopy.mValue.mURL;
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|     mValue.mURL->AddRef();
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|   }
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|   else if (eCSSUnit_Image == mUnit) {
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|     mValue.mImage = aCopy.mValue.mImage;
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|     mValue.mImage->AddRef();
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|   }
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|   else if (eCSSUnit_Gradient == mUnit) {
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|     mValue.mGradient = aCopy.mValue.mGradient;
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|     mValue.mGradient->AddRef();
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|   }
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|   else if (eCSSUnit_TokenStream == mUnit) {
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|     mValue.mTokenStream = aCopy.mValue.mTokenStream;
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|     mValue.mTokenStream->AddRef();
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|   }
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|   else if (eCSSUnit_Pair == mUnit) {
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|     mValue.mPair = aCopy.mValue.mPair;
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|     mValue.mPair->AddRef();
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|   }
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|   else if (eCSSUnit_Triplet == mUnit) {
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|     mValue.mTriplet = aCopy.mValue.mTriplet;
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|     mValue.mTriplet->AddRef();
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|   }
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|   else if (eCSSUnit_Rect == mUnit) {
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|     mValue.mRect = aCopy.mValue.mRect;
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|     mValue.mRect->AddRef();
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|   }
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|   else if (eCSSUnit_List == mUnit) {
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|     mValue.mList = aCopy.mValue.mList;
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|     mValue.mList->AddRef();
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|   }
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|   else if (eCSSUnit_ListDep == mUnit) {
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|     mValue.mListDependent = aCopy.mValue.mListDependent;
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|   }
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|   else if (eCSSUnit_SharedList == mUnit) {
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|     mValue.mSharedList = aCopy.mValue.mSharedList;
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|     mValue.mSharedList->AddRef();
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|   }
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|   else if (eCSSUnit_PairList == mUnit) {
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|     mValue.mPairList = aCopy.mValue.mPairList;
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|     mValue.mPairList->AddRef();
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|   }
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|   else if (eCSSUnit_PairListDep == mUnit) {
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|     mValue.mPairListDependent = aCopy.mValue.mPairListDependent;
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|   }
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|   else if (eCSSUnit_GridTemplateAreas == mUnit) {
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|     mValue.mGridTemplateAreas = aCopy.mValue.mGridTemplateAreas;
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|     mValue.mGridTemplateAreas->AddRef();
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|   }
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|   else if (eCSSUnit_FontFamilyList == mUnit) {
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|     mValue.mFontFamilyList = aCopy.mValue.mFontFamilyList;
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|     mValue.mFontFamilyList->AddRef();
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|   }
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|   else if (eCSSUnit_AtomIdent == mUnit) {
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|     mValue.mAtom = aCopy.mValue.mAtom;
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|     mValue.mAtom->AddRef();
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|   }
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|   else {
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|     MOZ_ASSERT(false, "unknown unit");
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|   }
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| }
 | |
| 
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| nsCSSValue& nsCSSValue::operator=(const nsCSSValue& aCopy)
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| {
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|   if (this != &aCopy) {
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|     Reset();
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|     new (this) nsCSSValue(aCopy);
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|   }
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|   return *this;
 | |
| }
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| 
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| nsCSSValue&
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| nsCSSValue::operator=(nsCSSValue&& aOther)
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| {
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|   MOZ_ASSERT(this != &aOther, "Self assigment with rvalue reference");
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| 
 | |
|   Reset();
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|   mUnit = aOther.mUnit;
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|   mValue = aOther.mValue;
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|   aOther.mUnit = eCSSUnit_Null;
 | |
| 
 | |
|   return *this;
 | |
| }
 | |
| 
 | |
| bool nsCSSValue::operator==(const nsCSSValue& aOther) const
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| {
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|   MOZ_ASSERT(mUnit != eCSSUnit_ListDep &&
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|              aOther.mUnit != eCSSUnit_ListDep &&
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|              mUnit != eCSSUnit_PairListDep &&
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|              aOther.mUnit != eCSSUnit_PairListDep,
 | |
|              "don't use operator== with dependent lists");
 | |
| 
 | |
|   if (mUnit == aOther.mUnit) {
 | |
|     if (mUnit <= eCSSUnit_DummyInherit) {
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|       return true;
 | |
|     }
 | |
|     else if (UnitHasStringValue()) {
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|       return (NS_strcmp(GetBufferValue(mValue.mString),
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|                         GetBufferValue(aOther.mValue.mString)) == 0);
 | |
|     }
 | |
|     else if ((eCSSUnit_Integer <= mUnit) && (mUnit <= eCSSUnit_EnumColor)) {
 | |
|       return mValue.mInt == aOther.mValue.mInt;
 | |
|     }
 | |
|     else if (IsIntegerColorUnit()) {
 | |
|       return mValue.mColor == aOther.mValue.mColor;
 | |
|     }
 | |
|     else if (IsFloatColorUnit()) {
 | |
|       return *mValue.mFloatColor == *aOther.mValue.mFloatColor;
 | |
|     }
 | |
|     else if (eCSSUnit_ComplexColor == mUnit) {
 | |
|       return *mValue.mComplexColor == *aOther.mValue.mComplexColor;
 | |
|     }
 | |
|     else if (UnitHasArrayValue()) {
 | |
|       return *mValue.mArray == *aOther.mValue.mArray;
 | |
|     }
 | |
|     else if (eCSSUnit_URL == mUnit) {
 | |
|       return mValue.mURL->Equals(*aOther.mValue.mURL);
 | |
|     }
 | |
|     else if (eCSSUnit_Image == mUnit) {
 | |
|       return mValue.mImage->Equals(*aOther.mValue.mImage);
 | |
|     }
 | |
|     else if (eCSSUnit_Gradient == mUnit) {
 | |
|       return *mValue.mGradient == *aOther.mValue.mGradient;
 | |
|     }
 | |
|     else if (eCSSUnit_TokenStream == mUnit) {
 | |
|       return *mValue.mTokenStream == *aOther.mValue.mTokenStream;
 | |
|     }
 | |
|     else if (eCSSUnit_Pair == mUnit) {
 | |
|       return *mValue.mPair == *aOther.mValue.mPair;
 | |
|     }
 | |
|     else if (eCSSUnit_Triplet == mUnit) {
 | |
|       return *mValue.mTriplet == *aOther.mValue.mTriplet;
 | |
|     }
 | |
|     else if (eCSSUnit_Rect == mUnit) {
 | |
|       return *mValue.mRect == *aOther.mValue.mRect;
 | |
|     }
 | |
|     else if (eCSSUnit_List == mUnit) {
 | |
|       return nsCSSValueList::Equal(mValue.mList, aOther.mValue.mList);
 | |
|     }
 | |
|     else if (eCSSUnit_SharedList == mUnit) {
 | |
|       return *mValue.mSharedList == *aOther.mValue.mSharedList;
 | |
|     }
 | |
|     else if (eCSSUnit_PairList == mUnit) {
 | |
|       return nsCSSValuePairList::Equal(mValue.mPairList,
 | |
|                                        aOther.mValue.mPairList);
 | |
|     }
 | |
|     else if (eCSSUnit_GridTemplateAreas == mUnit) {
 | |
|       return *mValue.mGridTemplateAreas == *aOther.mValue.mGridTemplateAreas;
 | |
|     }
 | |
|     else if (eCSSUnit_FontFamilyList == mUnit) {
 | |
|       return mValue.mFontFamilyList->mNames ==
 | |
|              aOther.mValue.mFontFamilyList->mNames;
 | |
|     }
 | |
|     else if (eCSSUnit_AtomIdent == mUnit) {
 | |
|       return mValue.mAtom == aOther.mValue.mAtom;
 | |
|     }
 | |
|     else {
 | |
|       return mValue.mFloat == aOther.mValue.mFloat;
 | |
|     }
 | |
|   }
 | |
|   return false;
 | |
| }
 | |
| 
 | |
| double
 | |
| nsCSSValue::GetAngleValueInRadians() const
 | |
| {
 | |
|   double angle = GetFloatValue();
 | |
| 
 | |
|   switch (GetUnit()) {
 | |
|     case eCSSUnit_Radian: return angle;
 | |
|     case eCSSUnit_Turn:   return angle * 2 * M_PI;
 | |
|     case eCSSUnit_Degree: return angle * M_PI / 180.0;
 | |
|     case eCSSUnit_Grad:   return angle * M_PI / 200.0;
 | |
| 
 | |
|     default:
 | |
|       MOZ_ASSERT(false, "unrecognized angular unit");
 | |
|       return 0.0;
 | |
|   }
 | |
| }
 | |
| 
 | |
| double
 | |
| nsCSSValue::GetAngleValueInDegrees() const
 | |
| {
 | |
|   double angle = GetFloatValue();
 | |
| 
 | |
|   switch (GetUnit()) {
 | |
|     case eCSSUnit_Degree: return angle;
 | |
|     case eCSSUnit_Grad:   return angle * 0.9; // grad / 400 * 360
 | |
|     case eCSSUnit_Radian: return angle * 180.0 / M_PI;  // rad / 2pi * 360
 | |
|     case eCSSUnit_Turn:   return angle * 360.0;
 | |
| 
 | |
|     default:
 | |
|       MOZ_ASSERT(false, "unrecognized angular unit");
 | |
|       return 0.0;
 | |
|   }
 | |
| }
 | |
| 
 | |
| imgRequestProxy* nsCSSValue::GetImageValue(nsIDocument* aDocument) const
 | |
| {
 | |
|   MOZ_ASSERT(mUnit == eCSSUnit_Image, "not an Image value");
 | |
|   return mValue.mImage->mRequests.GetWeak(aDocument);
 | |
| }
 | |
| 
 | |
| already_AddRefed<imgRequestProxy>
 | |
| nsCSSValue::GetPossiblyStaticImageValue(nsIDocument* aDocument,
 | |
|                                         nsPresContext* aPresContext) const
 | |
| {
 | |
|   imgRequestProxy* req = GetImageValue(aDocument);
 | |
|   if (aPresContext->IsDynamic()) {
 | |
|     return do_AddRef(req);
 | |
|   }
 | |
|   return nsContentUtils::GetStaticRequest(aDocument, req);
 | |
| }
 | |
| 
 | |
| nscoord nsCSSValue::GetPixelLength() const
 | |
| {
 | |
|   MOZ_ASSERT(IsPixelLengthUnit(), "not a fixed length unit");
 | |
| 
 | |
|   double scaleFactor;
 | |
|   switch (mUnit) {
 | |
|   case eCSSUnit_Pixel: return nsPresContext::CSSPixelsToAppUnits(mValue.mFloat);
 | |
|   case eCSSUnit_Pica: scaleFactor = 16.0; break;
 | |
|   case eCSSUnit_Point: scaleFactor = 4/3.0; break;
 | |
|   case eCSSUnit_Inch: scaleFactor = 96.0; break;
 | |
|   case eCSSUnit_Millimeter: scaleFactor = 96/25.4; break;
 | |
|   case eCSSUnit_Centimeter: scaleFactor = 96/2.54; break;
 | |
|   case eCSSUnit_Quarter: scaleFactor = 96/101.6; break;
 | |
|   default:
 | |
|     NS_ERROR("should never get here");
 | |
|     return 0;
 | |
|   }
 | |
|   return nsPresContext::CSSPixelsToAppUnits(float(mValue.mFloat*scaleFactor));
 | |
| }
 | |
| 
 | |
| // Assert against resetting non-trivial CSS values from the parallel Servo
 | |
| // traversal, since the refcounts aren't thread-safe.
 | |
| // Note that the caller might be an OMTA thread, which is allowed to operate off
 | |
| // main thread because it owns all of the corresponding nsCSSValues and any that
 | |
| // they might be sharing members with. Since this can happen concurrently with
 | |
| // the servo traversal, we have to use a more-precise (but slower) test.
 | |
| #define DO_RELEASE(member) {                                     \
 | |
|   MOZ_ASSERT(!ServoStyleSet::IsCurrentThreadInServoTraversal()); \
 | |
|   mValue.member->Release();                                      \
 | |
| }
 | |
| 
 | |
| void nsCSSValue::DoReset()
 | |
| {
 | |
|   if (UnitHasStringValue()) {
 | |
|     mValue.mString->Release();
 | |
|   } else if (IsFloatColorUnit()) {
 | |
|     DO_RELEASE(mFloatColor);
 | |
|   } else if (eCSSUnit_ComplexColor == mUnit) {
 | |
|     DO_RELEASE(mComplexColor);
 | |
|   } else if (UnitHasArrayValue()) {
 | |
|     DO_RELEASE(mArray);
 | |
|   } else if (eCSSUnit_URL == mUnit) {
 | |
|     DO_RELEASE(mURL);
 | |
|   } else if (eCSSUnit_Image == mUnit) {
 | |
|     DO_RELEASE(mImage);
 | |
|   } else if (eCSSUnit_Gradient == mUnit) {
 | |
|     DO_RELEASE(mGradient);
 | |
|   } else if (eCSSUnit_TokenStream == mUnit) {
 | |
|     DO_RELEASE(mTokenStream);
 | |
|   } else if (eCSSUnit_Pair == mUnit) {
 | |
|     DO_RELEASE(mPair);
 | |
|   } else if (eCSSUnit_Triplet == mUnit) {
 | |
|     DO_RELEASE(mTriplet);
 | |
|   } else if (eCSSUnit_Rect == mUnit) {
 | |
|     DO_RELEASE(mRect);
 | |
|   } else if (eCSSUnit_List == mUnit) {
 | |
|     DO_RELEASE(mList);
 | |
|   } else if (eCSSUnit_SharedList == mUnit) {
 | |
|     DO_RELEASE(mSharedList);
 | |
|   } else if (eCSSUnit_PairList == mUnit) {
 | |
|     DO_RELEASE(mPairList);
 | |
|   } else if (eCSSUnit_GridTemplateAreas == mUnit) {
 | |
|     DO_RELEASE(mGridTemplateAreas);
 | |
|   } else if (eCSSUnit_FontFamilyList == mUnit) {
 | |
|     DO_RELEASE(mFontFamilyList);
 | |
|   } else if (eCSSUnit_AtomIdent == mUnit) {
 | |
|     DO_RELEASE(mAtom);
 | |
|   }
 | |
|   mUnit = eCSSUnit_Null;
 | |
| }
 | |
| 
 | |
| #undef DO_RELEASE
 | |
| 
 | |
| void nsCSSValue::SetIntValue(int32_t aValue, nsCSSUnit aUnit)
 | |
| {
 | |
|   MOZ_ASSERT(aUnit == eCSSUnit_Integer || aUnit == eCSSUnit_Enumerated ||
 | |
|              aUnit == eCSSUnit_EnumColor,
 | |
|              "not an int value");
 | |
|   Reset();
 | |
|   if (aUnit == eCSSUnit_Integer || aUnit == eCSSUnit_Enumerated ||
 | |
|       aUnit == eCSSUnit_EnumColor) {
 | |
|     mUnit = aUnit;
 | |
|     mValue.mInt = aValue;
 | |
|   }
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetPercentValue(float aValue)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Percent;
 | |
|   mValue.mFloat = aValue;
 | |
|   MOZ_ASSERT(!mozilla::IsNaN(mValue.mFloat));
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetFloatValue(float aValue, nsCSSUnit aUnit)
 | |
| {
 | |
|   MOZ_ASSERT(IsFloatUnit(aUnit), "not a float value");
 | |
|   Reset();
 | |
|   if (IsFloatUnit(aUnit)) {
 | |
|     mUnit = aUnit;
 | |
|     mValue.mFloat = aValue;
 | |
|     MOZ_ASSERT(!mozilla::IsNaN(mValue.mFloat));
 | |
|   }
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetStringValue(const nsString& aValue,
 | |
|                                 nsCSSUnit aUnit)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = aUnit;
 | |
|   MOZ_ASSERT(UnitHasStringValue(), "not a string unit");
 | |
|   if (UnitHasStringValue()) {
 | |
|     mValue.mString = BufferFromString(aValue).take();
 | |
|   } else
 | |
|     mUnit = eCSSUnit_Null;
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValue::SetAtomIdentValue(already_AddRefed<nsAtom> aValue)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_AtomIdent;
 | |
|   mValue.mAtom = aValue.take();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetColorValue(nscolor aValue)
 | |
| {
 | |
|   SetIntegerColorValue(aValue, eCSSUnit_RGBAColor);
 | |
| }
 | |
| 
 | |
| 
 | |
| 
 | |
| void nsCSSValue::SetIntegerColorValue(nscolor aValue, nsCSSUnit aUnit)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = aUnit;
 | |
|   MOZ_ASSERT(IsIntegerColorUnit(), "bad unit");
 | |
|   mValue.mColor = aValue;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetIntegerCoordValue(nscoord aValue)
 | |
| {
 | |
|   SetFloatValue(nsPresContext::AppUnitsToFloatCSSPixels(aValue),
 | |
|                 eCSSUnit_Pixel);
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetFloatColorValue(float aComponent1,
 | |
|                                     float aComponent2,
 | |
|                                     float aComponent3,
 | |
|                                     float aAlpha,
 | |
|                                     nsCSSUnit aUnit)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = aUnit;
 | |
|   MOZ_ASSERT(IsFloatColorUnit(), "bad unit");
 | |
|   mValue.mFloatColor =
 | |
|     new nsCSSValueFloatColor(aComponent1, aComponent2, aComponent3, aAlpha);
 | |
|   mValue.mFloatColor->AddRef();
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValue::SetRGBAColorValue(const RGBAColorData& aValue)
 | |
| {
 | |
|   SetFloatColorValue(aValue.mR, aValue.mG, aValue.mB,
 | |
|                      aValue.mA, eCSSUnit_PercentageRGBAColor);
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValue::SetComplexColorValue(already_AddRefed<ComplexColorValue> aValue)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_ComplexColor;
 | |
|   mValue.mComplexColor = aValue.take();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetArrayValue(nsCSSValue::Array* aValue, nsCSSUnit aUnit)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = aUnit;
 | |
|   MOZ_ASSERT(UnitHasArrayValue(), "bad unit");
 | |
|   mValue.mArray = aValue;
 | |
|   mValue.mArray->AddRef();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetURLValue(mozilla::css::URLValue* aValue)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_URL;
 | |
|   mValue.mURL = aValue;
 | |
|   mValue.mURL->AddRef();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetImageValue(mozilla::css::ImageValue* aValue)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Image;
 | |
|   mValue.mImage = aValue;
 | |
|   mValue.mImage->AddRef();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetGradientValue(nsCSSValueGradient* aValue)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Gradient;
 | |
|   mValue.mGradient = aValue;
 | |
|   mValue.mGradient->AddRef();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetTokenStreamValue(nsCSSValueTokenStream* aValue)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_TokenStream;
 | |
|   mValue.mTokenStream = aValue;
 | |
|   mValue.mTokenStream->AddRef();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetGridTemplateAreas(mozilla::css::GridTemplateAreasValue* aValue)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_GridTemplateAreas;
 | |
|   mValue.mGridTemplateAreas = aValue;
 | |
|   mValue.mGridTemplateAreas->AddRef();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetFontFamilyListValue(already_AddRefed<SharedFontList> aValue)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_FontFamilyList;
 | |
|   mValue.mFontFamilyList = aValue.take();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetPairValue(const nsCSSValuePair* aValue)
 | |
| {
 | |
|   // pairs should not be used for null/inherit/initial values
 | |
|   MOZ_ASSERT(aValue &&
 | |
|              aValue->mXValue.GetUnit() != eCSSUnit_Null &&
 | |
|              aValue->mYValue.GetUnit() != eCSSUnit_Null &&
 | |
|              aValue->mXValue.GetUnit() != eCSSUnit_Inherit &&
 | |
|              aValue->mYValue.GetUnit() != eCSSUnit_Inherit &&
 | |
|              aValue->mXValue.GetUnit() != eCSSUnit_Initial &&
 | |
|              aValue->mYValue.GetUnit() != eCSSUnit_Initial &&
 | |
|              aValue->mXValue.GetUnit() != eCSSUnit_Unset &&
 | |
|              aValue->mYValue.GetUnit() != eCSSUnit_Unset,
 | |
|              "missing or inappropriate pair value");
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Pair;
 | |
|   mValue.mPair = new nsCSSValuePair_heap(aValue->mXValue, aValue->mYValue);
 | |
|   mValue.mPair->AddRef();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetPairValue(const nsCSSValue& xValue,
 | |
|                               const nsCSSValue& yValue)
 | |
| {
 | |
|   MOZ_ASSERT(xValue.GetUnit() != eCSSUnit_Null &&
 | |
|              yValue.GetUnit() != eCSSUnit_Null &&
 | |
|              xValue.GetUnit() != eCSSUnit_Inherit &&
 | |
|              yValue.GetUnit() != eCSSUnit_Inherit &&
 | |
|              xValue.GetUnit() != eCSSUnit_Initial &&
 | |
|              yValue.GetUnit() != eCSSUnit_Initial &&
 | |
|              xValue.GetUnit() != eCSSUnit_Unset &&
 | |
|              yValue.GetUnit() != eCSSUnit_Unset,
 | |
|              "inappropriate pair value");
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Pair;
 | |
|   mValue.mPair = new nsCSSValuePair_heap(xValue, yValue);
 | |
|   mValue.mPair->AddRef();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetTripletValue(const nsCSSValueTriplet* aValue)
 | |
| {
 | |
|   // triplet should not be used for null/inherit/initial values
 | |
|   MOZ_ASSERT(aValue &&
 | |
|              aValue->mXValue.GetUnit() != eCSSUnit_Null &&
 | |
|              aValue->mYValue.GetUnit() != eCSSUnit_Null &&
 | |
|              aValue->mZValue.GetUnit() != eCSSUnit_Null &&
 | |
|              aValue->mXValue.GetUnit() != eCSSUnit_Inherit &&
 | |
|              aValue->mYValue.GetUnit() != eCSSUnit_Inherit &&
 | |
|              aValue->mZValue.GetUnit() != eCSSUnit_Inherit &&
 | |
|              aValue->mXValue.GetUnit() != eCSSUnit_Initial &&
 | |
|              aValue->mYValue.GetUnit() != eCSSUnit_Initial &&
 | |
|              aValue->mZValue.GetUnit() != eCSSUnit_Initial &&
 | |
|              aValue->mXValue.GetUnit() != eCSSUnit_Unset &&
 | |
|              aValue->mYValue.GetUnit() != eCSSUnit_Unset &&
 | |
|              aValue->mZValue.GetUnit() != eCSSUnit_Unset,
 | |
|              "missing or inappropriate triplet value");
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Triplet;
 | |
|   mValue.mTriplet = new nsCSSValueTriplet_heap(aValue->mXValue, aValue->mYValue, aValue->mZValue);
 | |
|   mValue.mTriplet->AddRef();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetTripletValue(const nsCSSValue& xValue,
 | |
|                                  const nsCSSValue& yValue,
 | |
|                                  const nsCSSValue& zValue)
 | |
| {
 | |
|   // Only allow Null for the z component
 | |
|   MOZ_ASSERT(xValue.GetUnit() != eCSSUnit_Null &&
 | |
|              yValue.GetUnit() != eCSSUnit_Null &&
 | |
|              xValue.GetUnit() != eCSSUnit_Inherit &&
 | |
|              yValue.GetUnit() != eCSSUnit_Inherit &&
 | |
|              zValue.GetUnit() != eCSSUnit_Inherit &&
 | |
|              xValue.GetUnit() != eCSSUnit_Initial &&
 | |
|              yValue.GetUnit() != eCSSUnit_Initial &&
 | |
|              zValue.GetUnit() != eCSSUnit_Initial &&
 | |
|              xValue.GetUnit() != eCSSUnit_Unset &&
 | |
|              yValue.GetUnit() != eCSSUnit_Unset &&
 | |
|              zValue.GetUnit() != eCSSUnit_Unset,
 | |
|              "inappropriate triplet value");
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Triplet;
 | |
|   mValue.mTriplet = new nsCSSValueTriplet_heap(xValue, yValue, zValue);
 | |
|   mValue.mTriplet->AddRef();
 | |
| }
 | |
| 
 | |
| nsCSSRect& nsCSSValue::SetRectValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Rect;
 | |
|   mValue.mRect = new nsCSSRect_heap;
 | |
|   mValue.mRect->AddRef();
 | |
|   return *mValue.mRect;
 | |
| }
 | |
| 
 | |
| nsCSSValueList* nsCSSValue::SetListValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_List;
 | |
|   mValue.mList = new nsCSSValueList_heap;
 | |
|   mValue.mList->AddRef();
 | |
|   return mValue.mList;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetSharedListValue(nsCSSValueSharedList* aList)
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_SharedList;
 | |
|   mValue.mSharedList = aList;
 | |
|   mValue.mSharedList->AddRef();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetDependentListValue(nsCSSValueList* aList)
 | |
| {
 | |
|   Reset();
 | |
|   if (aList) {
 | |
|     mUnit = eCSSUnit_ListDep;
 | |
|     mValue.mListDependent = aList;
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValue::AdoptListValue(UniquePtr<nsCSSValueList> aValue)
 | |
| {
 | |
|   // We have to copy the first element since for owned lists the first
 | |
|   // element should be an nsCSSValueList_heap object.
 | |
|   SetListValue();
 | |
|   mValue.mList->mValue = Move(aValue->mValue);
 | |
|   mValue.mList->mNext  = aValue->mNext;
 | |
|   aValue->mNext = nullptr;
 | |
|   aValue.reset();
 | |
| }
 | |
| 
 | |
| nsCSSValuePairList* nsCSSValue::SetPairListValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_PairList;
 | |
|   mValue.mPairList = new nsCSSValuePairList_heap;
 | |
|   mValue.mPairList->AddRef();
 | |
|   return mValue.mPairList;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetDependentPairListValue(nsCSSValuePairList* aList)
 | |
| {
 | |
|   Reset();
 | |
|   if (aList) {
 | |
|     mUnit = eCSSUnit_PairListDep;
 | |
|     mValue.mPairListDependent = aList;
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValue::AdoptPairListValue(UniquePtr<nsCSSValuePairList> aValue)
 | |
| {
 | |
|   // We have to copy the first element, since for owned pair lists, the first
 | |
|   // element should be an nsCSSValuePairList_heap object.
 | |
|   SetPairListValue();
 | |
|   mValue.mPairList->mXValue = Move(aValue->mXValue);
 | |
|   mValue.mPairList->mYValue = Move(aValue->mYValue);
 | |
|   mValue.mPairList->mNext   = aValue->mNext;
 | |
|   aValue->mNext = nullptr;
 | |
|   aValue.reset();
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetAutoValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Auto;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetInheritValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Inherit;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetInitialValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Initial;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetUnsetValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Unset;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetNoneValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_None;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetAllValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_All;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetNormalValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Normal;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetSystemFontValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_System_Font;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetDummyValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_Dummy;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetDummyInheritValue()
 | |
| {
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_DummyInherit;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::SetCalcValue(const nsStyleCoord::CalcValue* aCalc)
 | |
| {
 | |
|   RefPtr<nsCSSValue::Array> arr = nsCSSValue::Array::Create(1);
 | |
|   if (!aCalc->mHasPercent) {
 | |
|     arr->Item(0).SetIntegerCoordValue(aCalc->mLength);
 | |
|   } else {
 | |
|     nsCSSValue::Array *arr2 = nsCSSValue::Array::Create(2);
 | |
|     arr->Item(0).SetArrayValue(arr2, eCSSUnit_Calc_Plus);
 | |
|     arr2->Item(0).SetIntegerCoordValue(aCalc->mLength);
 | |
|     arr2->Item(1).SetPercentValue(aCalc->mPercent);
 | |
|   }
 | |
| 
 | |
|   SetArrayValue(arr, eCSSUnit_Calc);
 | |
| }
 | |
| 
 | |
| nsStyleCoord::CalcValue
 | |
| nsCSSValue::GetCalcValue() const
 | |
| {
 | |
|   MOZ_ASSERT(mUnit == eCSSUnit_Calc,
 | |
|              "The unit should be eCSSUnit_Calc");
 | |
| 
 | |
|   const nsCSSValue::Array* array = GetArrayValue();
 | |
|   MOZ_ASSERT(array->Count() == 1,
 | |
|              "There should be a 1-length array");
 | |
| 
 | |
|   const nsCSSValue& rootValue = array->Item(0);
 | |
| 
 | |
|   nsStyleCoord::CalcValue result;
 | |
| 
 | |
|   if (rootValue.GetUnit() == eCSSUnit_Pixel) {
 | |
|     result.mLength = rootValue.GetPixelLength();
 | |
|     result.mPercent = 0.0f;
 | |
|     result.mHasPercent = false;
 | |
|   } else {
 | |
|     MOZ_ASSERT(rootValue.GetUnit() == eCSSUnit_Calc_Plus,
 | |
|                "Calc unit should be eCSSUnit_Calc_Plus");
 | |
| 
 | |
|     const nsCSSValue::Array *calcPlusArray = rootValue.GetArrayValue();
 | |
|     MOZ_ASSERT(calcPlusArray->Count() == 2,
 | |
|                "eCSSUnit_Calc_Plus should have a 2-length array");
 | |
| 
 | |
|     const nsCSSValue& length = calcPlusArray->Item(0);
 | |
|     const nsCSSValue& percent = calcPlusArray->Item(1);
 | |
|     MOZ_ASSERT(length.GetUnit() == eCSSUnit_Pixel,
 | |
|                "The first value should be eCSSUnit_Pixel");
 | |
|     MOZ_ASSERT(percent.GetUnit() == eCSSUnit_Percent,
 | |
|                "The first value should be eCSSUnit_Percent");
 | |
|     result.mLength = length.GetPixelLength();
 | |
|     result.mPercent = percent.GetPercentValue();
 | |
|     result.mHasPercent = true;
 | |
|   }
 | |
| 
 | |
|   return result;
 | |
| }
 | |
| 
 | |
| void nsCSSValue::StartImageLoad(nsIDocument* aDocument) const
 | |
| {
 | |
|   MOZ_ASSERT(eCSSUnit_URL == mUnit, "Not a URL value!");
 | |
|   mozilla::css::ImageValue* image =
 | |
|       mozilla::css::ImageValue::CreateFromURLValue(mValue.mURL, aDocument);
 | |
| 
 | |
|   nsCSSValue* writable = const_cast<nsCSSValue*>(this);
 | |
|   writable->SetImageValue(image);
 | |
| }
 | |
| 
 | |
| nscolor nsCSSValue::GetColorValue() const
 | |
| {
 | |
|   MOZ_ASSERT(IsNumericColorUnit(), "not a color value");
 | |
|   if (IsFloatColorUnit()) {
 | |
|     return mValue.mFloatColor->GetColorValue(mUnit);
 | |
|   }
 | |
|   return mValue.mColor;
 | |
| }
 | |
| 
 | |
| bool nsCSSValue::IsNonTransparentColor() const
 | |
| {
 | |
|   // We have the value in the form it was specified in at this point, so we
 | |
|   // have to look for both the keyword 'transparent' and its equivalent in
 | |
|   // rgba notation.
 | |
|   nsDependentString buf;
 | |
|   return
 | |
|     (IsIntegerColorUnit() && NS_GET_A(GetColorValue()) > 0) ||
 | |
|     (IsFloatColorUnit() && mValue.mFloatColor->IsNonTransparentColor()) ||
 | |
|     (mUnit == eCSSUnit_Ident &&
 | |
|      !nsGkAtoms::transparent->Equals(GetStringValue(buf))) ||
 | |
|     (mUnit == eCSSUnit_EnumColor);
 | |
| }
 | |
| 
 | |
| nsCSSValue::Array*
 | |
| nsCSSValue::InitFunction(nsCSSKeyword aFunctionId, uint32_t aNumArgs)
 | |
| {
 | |
|   RefPtr<nsCSSValue::Array> func = Array::Create(aNumArgs + 1);
 | |
|   func->Item(0).SetIntValue(aFunctionId, eCSSUnit_Enumerated);
 | |
|   SetArrayValue(func, eCSSUnit_Function);
 | |
|   return func;
 | |
| }
 | |
| 
 | |
| bool
 | |
| nsCSSValue::EqualsFunction(nsCSSKeyword aFunctionId) const
 | |
| {
 | |
|   if (mUnit != eCSSUnit_Function) {
 | |
|     return false;
 | |
|   }
 | |
| 
 | |
|   nsCSSValue::Array* func = mValue.mArray;
 | |
|   MOZ_ASSERT(func && func->Count() >= 1 &&
 | |
|              func->Item(0).GetUnit() == eCSSUnit_Enumerated,
 | |
|              "illegally structured function value");
 | |
| 
 | |
|   nsCSSKeyword thisFunctionId = func->Item(0).GetKeywordValue();
 | |
|   return thisFunctionId == aFunctionId;
 | |
| }
 | |
| 
 | |
| // static
 | |
| already_AddRefed<nsStringBuffer>
 | |
| nsCSSValue::BufferFromString(const nsString& aValue)
 | |
| {
 | |
|   RefPtr<nsStringBuffer> buffer = nsStringBuffer::FromString(aValue);
 | |
|   if (buffer) {
 | |
|     return buffer.forget();
 | |
|   }
 | |
| 
 | |
|   nsString::size_type length = aValue.Length();
 | |
| 
 | |
|   // NOTE: Alloc prouduces a new, already-addref'd (refcnt = 1) buffer.
 | |
|   // NOTE: String buffer allocation is currently fallible.
 | |
|   size_t sz = (length + 1) * sizeof(char16_t);
 | |
|   buffer = nsStringBuffer::Alloc(sz);
 | |
|   if (MOZ_UNLIKELY(!buffer)) {
 | |
|     NS_ABORT_OOM(sz);
 | |
|   }
 | |
| 
 | |
|   char16_t* data = static_cast<char16_t*>(buffer->Data());
 | |
|   nsCharTraits<char16_t>::copy(data, aValue.get(), length);
 | |
|   // Null-terminate.
 | |
|   data[length] = 0;
 | |
|   return buffer.forget();
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValue::AtomizeIdentValue()
 | |
| {
 | |
|   MOZ_ASSERT(mUnit == eCSSUnit_Ident);
 | |
|   RefPtr<nsAtom> atom = NS_Atomize(GetStringBufferValue());
 | |
|   Reset();
 | |
|   mUnit = eCSSUnit_AtomIdent;
 | |
|   mValue.mAtom = atom.forget().take();
 | |
| }
 | |
| 
 | |
| namespace {
 | |
| 
 | |
| struct CSSValueSerializeCalcOps {
 | |
|   CSSValueSerializeCalcOps(nsCSSPropertyID aProperty, nsAString& aResult)
 | |
|     : mProperty(aProperty),
 | |
|       mResult(aResult)
 | |
|   {
 | |
|   }
 | |
| 
 | |
|   typedef nsCSSValue input_type;
 | |
|   typedef nsCSSValue::Array input_array_type;
 | |
| 
 | |
|   static nsCSSUnit GetUnit(const input_type& aValue) {
 | |
|     return aValue.GetUnit();
 | |
|   }
 | |
| 
 | |
|   void Append(const char* aString)
 | |
|   {
 | |
|     mResult.AppendASCII(aString);
 | |
|   }
 | |
| 
 | |
|   void AppendLeafValue(const input_type& aValue)
 | |
|   {
 | |
|     MOZ_ASSERT(aValue.GetUnit() == eCSSUnit_Percent ||
 | |
|                aValue.IsLengthUnit() ||
 | |
|                aValue.GetUnit() == eCSSUnit_Number,
 | |
|                "unexpected unit");
 | |
|     aValue.AppendToString(mProperty, mResult);
 | |
|   }
 | |
| 
 | |
|   void AppendCoefficient(const input_type& aValue)
 | |
|   {
 | |
|     MOZ_ASSERT(aValue.GetUnit() == eCSSUnit_Number, "unexpected unit");
 | |
|     aValue.AppendToString(mProperty, mResult);
 | |
|   }
 | |
| 
 | |
| private:
 | |
|   nsCSSPropertyID mProperty;
 | |
|   nsAString &mResult;
 | |
| };
 | |
| 
 | |
| } // namespace
 | |
| 
 | |
| void
 | |
| nsCSSValue::AppendPolygonToString(nsCSSPropertyID aProperty,
 | |
|                                   nsAString& aResult) const
 | |
| {
 | |
|   const nsCSSValue::Array* array = GetArrayValue();
 | |
|   MOZ_ASSERT(array->Count() > 1 && array->Count() <= 3,
 | |
|              "Polygons must have name and at least one more value.");
 | |
|   // When the array has 2 elements, the item on index 1 is the coordinate
 | |
|   // pair list.
 | |
|   // When the array has 3 elements, the item on index 1 is a fill-rule
 | |
|   // and item on index 2 is the coordinate pair list.
 | |
|   size_t index = 1;
 | |
|   if (array->Count() == 3) {
 | |
|     const nsCSSValue& fillRuleValue = array->Item(index);
 | |
|     MOZ_ASSERT(fillRuleValue.GetUnit() == eCSSUnit_Enumerated,
 | |
|                "Expected polygon fill rule.");
 | |
|     int32_t fillRule = fillRuleValue.GetIntValue();
 | |
|     AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(fillRule,
 | |
|                                                   nsCSSProps::kFillRuleKTable),
 | |
|                        aResult);
 | |
|     aResult.AppendLiteral(", ");
 | |
|     ++index;
 | |
|   }
 | |
|   array->Item(index).AppendToString(aProperty, aResult);
 | |
| }
 | |
| 
 | |
| inline void
 | |
| nsCSSValue::AppendPositionCoordinateToString(
 | |
|                 const nsCSSValue& aValue, nsCSSPropertyID aProperty,
 | |
|                 nsAString& aResult) const
 | |
| {
 | |
|   if (aValue.GetUnit() == eCSSUnit_Enumerated) {
 | |
|     int32_t intValue = aValue.GetIntValue();
 | |
|     AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
 | |
|                           nsCSSProps::kShapeRadiusKTable), aResult);
 | |
|   } else {
 | |
|     aValue.AppendToString(aProperty, aResult);
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValue::AppendCircleOrEllipseToString(nsCSSKeyword aFunctionId,
 | |
|                                           nsCSSPropertyID aProperty,
 | |
|                                           nsAString& aResult) const
 | |
| {
 | |
|   const nsCSSValue::Array* array = GetArrayValue();
 | |
|   size_t count = aFunctionId == eCSSKeyword_circle ? 2 : 3;
 | |
|   MOZ_ASSERT(array->Count() == count + 1, "wrong number of arguments");
 | |
| 
 | |
|   bool hasRadii = array->Item(1).GetUnit() != eCSSUnit_Null;
 | |
| 
 | |
|   // closest-side is the default, so we don't need to
 | |
|   // output it if all values are closest-side.
 | |
|   if (array->Item(1).GetUnit() == eCSSUnit_Enumerated &&
 | |
|       StyleShapeRadius(array->Item(1).GetIntValue()) == StyleShapeRadius::ClosestSide &&
 | |
|       (aFunctionId == eCSSKeyword_circle ||
 | |
|        (array->Item(2).GetUnit() == eCSSUnit_Enumerated &&
 | |
|         StyleShapeRadius(array->Item(2).GetIntValue()) == StyleShapeRadius::ClosestSide))) {
 | |
|     hasRadii = false;
 | |
|   } else {
 | |
|     AppendPositionCoordinateToString(array->Item(1), aProperty, aResult);
 | |
| 
 | |
|     if (hasRadii && aFunctionId == eCSSKeyword_ellipse) {
 | |
|       aResult.Append(' ');
 | |
|       AppendPositionCoordinateToString(array->Item(2), aProperty, aResult);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   if (hasRadii) {
 | |
|     aResult.Append(' ');
 | |
|   }
 | |
| 
 | |
|   // Any position specified?
 | |
|   if (array->Item(count).GetUnit() != eCSSUnit_Array) {
 | |
|     MOZ_ASSERT(array->Item(count).GetUnit() == eCSSUnit_Null,
 | |
|                "unexpected value");
 | |
|     // We only serialize to the 2 or 4 value form
 | |
|     // |circle()| is valid, but should be expanded
 | |
|     // to |circle(at 50% 50%)|
 | |
|     aResult.AppendLiteral("at 50% 50%");
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   aResult.AppendLiteral("at ");
 | |
|   array->Item(count).AppendBasicShapePositionToString(aResult);
 | |
| }
 | |
| 
 | |
| // https://drafts.csswg.org/css-shapes/#basic-shape-serialization
 | |
| // basic-shape asks us to omit a lot of redundant things whilst serializing
 | |
| // position values. Other specs are not clear about this
 | |
| // (https://github.com/w3c/csswg-drafts/issues/368), so for now we special-case
 | |
| // basic shapes only
 | |
| void
 | |
| nsCSSValue::AppendBasicShapePositionToString(nsAString& aResult) const
 | |
| {
 | |
|   const nsCSSValue::Array* array = GetArrayValue();
 | |
|   // We always parse these into an array of four elements
 | |
|   MOZ_ASSERT(array->Count() == 4,
 | |
|              "basic-shape position value doesn't have enough elements");
 | |
| 
 | |
|   const nsCSSValue &xEdge   = array->Item(0);
 | |
|   const nsCSSValue &xOffset = array->Item(1);
 | |
|   const nsCSSValue &yEdge   = array->Item(2);
 | |
|   const nsCSSValue &yOffset = array->Item(3);
 | |
| 
 | |
|   MOZ_ASSERT(xEdge.GetUnit() == eCSSUnit_Enumerated &&
 | |
|              yEdge.GetUnit() == eCSSUnit_Enumerated &&
 | |
|              xOffset.IsLengthPercentCalcUnit() &&
 | |
|              yOffset.IsLengthPercentCalcUnit() &&
 | |
|              xEdge.GetIntValue() != NS_STYLE_IMAGELAYER_POSITION_CENTER &&
 | |
|              yEdge.GetIntValue() != NS_STYLE_IMAGELAYER_POSITION_CENTER,
 | |
|              "Ensure invariants from ParsePositionValueBasicShape "
 | |
|              "haven't been modified");
 | |
|   if (xEdge.GetIntValue() == NS_STYLE_IMAGELAYER_POSITION_LEFT &&
 | |
|       yEdge.GetIntValue() == NS_STYLE_IMAGELAYER_POSITION_TOP) {
 | |
|     // We can omit these defaults
 | |
|     xOffset.AppendToString(eCSSProperty_UNKNOWN, aResult);
 | |
|     aResult.Append(' ');
 | |
|     yOffset.AppendToString(eCSSProperty_UNKNOWN, aResult);
 | |
|   } else {
 | |
|     // We only serialize to the two or four valued form
 | |
|     xEdge.AppendToString(eCSSProperty_object_position, aResult);
 | |
|     aResult.Append(' ');
 | |
|     xOffset.AppendToString(eCSSProperty_UNKNOWN, aResult);
 | |
|     aResult.Append(' ');
 | |
|     yEdge.AppendToString(eCSSProperty_object_position, aResult);
 | |
|     aResult.Append(' ');
 | |
|     yOffset.AppendToString(eCSSProperty_UNKNOWN, aResult);
 | |
|   }
 | |
| }
 | |
| 
 | |
| // Helper to append |aString| with the shorthand sides notation used in e.g.
 | |
| // 'padding'. |aProperties| and |aValues| are expected to have 4 elements.
 | |
| /*static*/ void
 | |
| nsCSSValue::AppendSidesShorthandToString(const nsCSSPropertyID aProperties[],
 | |
|                                          const nsCSSValue* aValues[],
 | |
|                                          nsAString& aString)
 | |
| {
 | |
|   const nsCSSValue& value1 = *aValues[0];
 | |
|   const nsCSSValue& value2 = *aValues[1];
 | |
|   const nsCSSValue& value3 = *aValues[2];
 | |
|   const nsCSSValue& value4 = *aValues[3];
 | |
| 
 | |
|   MOZ_ASSERT(value1.GetUnit() != eCSSUnit_Null, "null value 1");
 | |
|   value1.AppendToString(aProperties[0], aString);
 | |
|   if (value1 != value2 || value1 != value3 || value1 != value4) {
 | |
|     aString.Append(char16_t(' '));
 | |
|     MOZ_ASSERT(value2.GetUnit() != eCSSUnit_Null, "null value 2");
 | |
|     value2.AppendToString(aProperties[1], aString);
 | |
|     if (value1 != value3 || value2 != value4) {
 | |
|       aString.Append(char16_t(' '));
 | |
|       MOZ_ASSERT(value3.GetUnit() != eCSSUnit_Null, "null value 3");
 | |
|       value3.AppendToString(aProperties[2], aString);
 | |
|       if (value2 != value4) {
 | |
|         aString.Append(char16_t(' '));
 | |
|         MOZ_ASSERT(value4.GetUnit() != eCSSUnit_Null, "null value 4");
 | |
|         value4.AppendToString(aProperties[3], aString);
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| /*static*/ void
 | |
| nsCSSValue::AppendBasicShapeRadiusToString(const nsCSSPropertyID aProperties[],
 | |
|                                            const nsCSSValue* aValues[],
 | |
|                                            nsAString& aResult)
 | |
| {
 | |
|   bool needY = false;
 | |
|   const nsCSSValue* xVals[4];
 | |
|   const nsCSSValue* yVals[4];
 | |
|   for (int i = 0; i < 4; i++) {
 | |
|     if (aValues[i]->GetUnit() == eCSSUnit_Pair) {
 | |
|       needY = true;
 | |
|       xVals[i] = &aValues[i]->GetPairValue().mXValue;
 | |
|       yVals[i] = &aValues[i]->GetPairValue().mYValue;
 | |
|     } else {
 | |
|       xVals[i] = yVals[i] = aValues[i];
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   AppendSidesShorthandToString(aProperties, xVals, aResult);
 | |
|   if (needY) {
 | |
|     aResult.AppendLiteral(" / ");
 | |
|     AppendSidesShorthandToString(aProperties, yVals, aResult);
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValue::AppendInsetToString(nsCSSPropertyID aProperty,
 | |
|                                 nsAString& aResult) const
 | |
| {
 | |
|   const nsCSSValue::Array* array = GetArrayValue();
 | |
|   MOZ_ASSERT(array->Count() == 6,
 | |
|              "inset function has wrong number of arguments");
 | |
|   if (array->Item(1).GetUnit() != eCSSUnit_Null) {
 | |
|     array->Item(1).AppendToString(aProperty, aResult);
 | |
|     if (array->Item(2).GetUnit() != eCSSUnit_Null) {
 | |
|       aResult.Append(' ');
 | |
|       array->Item(2).AppendToString(aProperty, aResult);
 | |
|       if (array->Item(3).GetUnit() != eCSSUnit_Null) {
 | |
|         aResult.Append(' ');
 | |
|         array->Item(3).AppendToString(aProperty, aResult);
 | |
|         if (array->Item(4).GetUnit() != eCSSUnit_Null) {
 | |
|           aResult.Append(' ');
 | |
|           array->Item(4).AppendToString(aProperty, aResult);
 | |
|         }
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   if (array->Item(5).GetUnit() == eCSSUnit_Array) {
 | |
|     const nsCSSPropertyID* subprops =
 | |
|       nsCSSProps::SubpropertyEntryFor(eCSSProperty_border_radius);
 | |
|     const nsCSSValue::Array* radius = array->Item(5).GetArrayValue();
 | |
|     MOZ_ASSERT(radius->Count() == 4, "expected 4 radii values");
 | |
|     const nsCSSValue* vals[4] = {
 | |
|       &(radius->Item(0)),
 | |
|       &(radius->Item(1)),
 | |
|       &(radius->Item(2)),
 | |
|       &(radius->Item(3))
 | |
|     };
 | |
|     aResult.AppendLiteral(" round ");
 | |
|     AppendBasicShapeRadiusToString(subprops, vals, aResult);
 | |
|   } else {
 | |
|     MOZ_ASSERT(array->Item(5).GetUnit() == eCSSUnit_Null,
 | |
|                "unexpected value");
 | |
|   }
 | |
| }
 | |
| 
 | |
| /* static */ void
 | |
| nsCSSValue::AppendAlignJustifyValueToString(int32_t aValue, nsAString& aResult)
 | |
| {
 | |
|   auto legacy = aValue & NS_STYLE_ALIGN_LEGACY;
 | |
|   if (legacy) {
 | |
|     aValue &= ~legacy;
 | |
|     aResult.AppendLiteral("legacy ");
 | |
|   }
 | |
|   auto overflowPos = aValue & (NS_STYLE_ALIGN_SAFE | NS_STYLE_ALIGN_UNSAFE);
 | |
|   aValue &= ~overflowPos;
 | |
|   MOZ_ASSERT(!(aValue & NS_STYLE_ALIGN_FLAG_BITS),
 | |
|              "unknown bits in align/justify value");
 | |
|   MOZ_ASSERT((aValue != NS_STYLE_ALIGN_AUTO &&
 | |
|               aValue != NS_STYLE_ALIGN_NORMAL &&
 | |
|               aValue != NS_STYLE_ALIGN_BASELINE &&
 | |
|               aValue != NS_STYLE_ALIGN_LAST_BASELINE) ||
 | |
|              (!legacy && !overflowPos),
 | |
|              "auto/normal/baseline/'last baseline' never have any flags");
 | |
|   MOZ_ASSERT(legacy == 0 || overflowPos == 0,
 | |
|              "'legacy' together with <overflow-position>");
 | |
|   if (aValue == NS_STYLE_ALIGN_LAST_BASELINE) {
 | |
|     aResult.AppendLiteral("last ");
 | |
|     aValue = NS_STYLE_ALIGN_BASELINE;
 | |
|   }
 | |
|   const auto& kwtable(nsCSSProps::kAlignAllKeywords);
 | |
|   AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(aValue, kwtable), aResult);
 | |
|   // Don't serialize the 'unsafe' keyword; it's the default.
 | |
|   if (MOZ_UNLIKELY(overflowPos == NS_STYLE_ALIGN_SAFE)) {
 | |
|     aResult.Append(' ');
 | |
|     AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(overflowPos, kwtable),
 | |
|                        aResult);
 | |
|   }
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Returns a re-ordered version of an csCSSValue::Array representing a shadow
 | |
|  * item (including a drop-shadow() filter function) suitable for serialization.
 | |
|  */
 | |
| static already_AddRefed<nsCSSValue::Array>
 | |
| GetReorderedShadowArrayForSerialization(const nsCSSValue::Array* aOriginalArray)
 | |
| {
 | |
|   MOZ_ASSERT(aOriginalArray);
 | |
| 
 | |
|   RefPtr<nsCSSValue::Array> reorderArray = nsCSSValue::Array::Create(6);
 | |
| 
 | |
|   reorderArray->Item(0) = aOriginalArray->Item(4); // Color
 | |
|   for (uint8_t i = 0; i < 4; i++) {
 | |
|     reorderArray->Item(i + 1) = aOriginalArray->Item(i); // Length
 | |
|   }
 | |
|   reorderArray->Item(5) = aOriginalArray->Item(5); // Inset
 | |
| 
 | |
|   return reorderArray.forget();
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValue::AppendToString(nsCSSPropertyID aProperty,
 | |
|                            nsAString& aResult) const
 | |
| {
 | |
|   // eCSSProperty_UNKNOWN gets used for some recursive calls below.
 | |
|   MOZ_ASSERT((0 <= aProperty &&
 | |
|               aProperty <= eCSSProperty_COUNT_no_shorthands) ||
 | |
|              aProperty == eCSSProperty_UNKNOWN ||
 | |
|              aProperty == eCSSProperty_DOM,
 | |
|              "property ID out of range");
 | |
| 
 | |
|   nsCSSUnit unit = GetUnit();
 | |
|   if (unit == eCSSUnit_Null) {
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   if (eCSSUnit_String <= unit && unit <= eCSSUnit_Attr) {
 | |
|     if (unit == eCSSUnit_Attr) {
 | |
|       aResult.AppendLiteral("attr(");
 | |
|     }
 | |
|     nsAutoString  buffer;
 | |
|     GetStringValue(buffer);
 | |
|     if (unit == eCSSUnit_String) {
 | |
|       nsStyleUtil::AppendEscapedCSSString(buffer, aResult);
 | |
|     } else {
 | |
|       nsStyleUtil::AppendEscapedCSSIdent(buffer, aResult);
 | |
|     }
 | |
|   }
 | |
|   else if (eCSSUnit_Array <= unit && unit <= eCSSUnit_Symbols) {
 | |
|     switch (unit) {
 | |
|       case eCSSUnit_Counter:  aResult.AppendLiteral("counter(");  break;
 | |
|       case eCSSUnit_Counters: aResult.AppendLiteral("counters("); break;
 | |
|       case eCSSUnit_Cubic_Bezier: aResult.AppendLiteral("cubic-bezier("); break;
 | |
|       case eCSSUnit_Steps: aResult.AppendLiteral("steps("); break;
 | |
|       case eCSSUnit_Symbols: aResult.AppendLiteral("symbols("); break;
 | |
|       default: break;
 | |
|     }
 | |
| 
 | |
|     nsCSSValue::Array *array = GetArrayValue();
 | |
| 
 | |
|     // CSSParserImpl::ParseShadowItem stores shadow items in a specific order
 | |
|     // that does not match the order we use when serializing computed shadow
 | |
|     // items. In order to match the computed value order, we shuffle the items
 | |
|     // in the shadow array before serializing it.
 | |
|     RefPtr<nsCSSValue::Array> reordered;
 | |
|     if (aProperty == eCSSProperty_text_shadow ||
 | |
|         aProperty == eCSSProperty_box_shadow ||
 | |
|         aProperty == eCSSProperty_filter) {
 | |
|       reordered = GetReorderedShadowArrayForSerialization(array);
 | |
|       array = reordered.get();
 | |
|     }
 | |
| 
 | |
|     bool mark = false;
 | |
|     for (size_t i = 0, i_end = array->Count(); i < i_end; ++i) {
 | |
|       if (mark && array->Item(i).GetUnit() != eCSSUnit_Null) {
 | |
|         if ((unit == eCSSUnit_Array &&
 | |
|              eCSSProperty_transition_timing_function != aProperty) ||
 | |
|             unit == eCSSUnit_Symbols)
 | |
|           aResult.Append(' ');
 | |
|         else if (unit != eCSSUnit_Steps)
 | |
|           aResult.AppendLiteral(", ");
 | |
|       }
 | |
|       if (unit == eCSSUnit_Steps && i == 1) {
 | |
|         MOZ_ASSERT(array->Item(i).GetUnit() == eCSSUnit_Enumerated,
 | |
|                    "unexpected value");
 | |
|         int32_t side = array->Item(i).GetIntValue();
 | |
|         MOZ_ASSERT(side == NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_START ||
 | |
|                    side == NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_END ||
 | |
|                    side == -1,
 | |
|                    "unexpected value");
 | |
|         if (side == NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_START) {
 | |
|           aResult.AppendLiteral(", start");
 | |
|         } else if (side == NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_END) {
 | |
|           aResult.AppendLiteral(", end");
 | |
|         }
 | |
|         continue;
 | |
|       }
 | |
|       if (unit == eCSSUnit_Symbols && i == 0) {
 | |
|         MOZ_ASSERT(array->Item(i).GetUnit() == eCSSUnit_Enumerated,
 | |
|                    "unexpected value");
 | |
|         int32_t system = array->Item(i).GetIntValue();
 | |
|         if (system != NS_STYLE_COUNTER_SYSTEM_SYMBOLIC) {
 | |
|           AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(
 | |
|                   system, nsCSSProps::kCounterSystemKTable), aResult);
 | |
|           mark = true;
 | |
|         }
 | |
|         continue;
 | |
|       }
 | |
|       nsCSSPropertyID prop =
 | |
|         ((eCSSUnit_Counter <= unit && unit <= eCSSUnit_Counters) &&
 | |
|          i == array->Count() - 1)
 | |
|         ? eCSSProperty_list_style_type : aProperty;
 | |
|       if (array->Item(i).GetUnit() != eCSSUnit_Null) {
 | |
|         array->Item(i).AppendToString(prop, aResult);
 | |
|         mark = true;
 | |
|       }
 | |
|     }
 | |
|     if (eCSSUnit_Array == unit &&
 | |
|         aProperty == eCSSProperty_transition_timing_function) {
 | |
|       aResult.Append(')');
 | |
|     }
 | |
|   }
 | |
|   /* Although Function is backed by an Array, we'll handle it separately
 | |
|    * because it's a bit quirky.
 | |
|    */
 | |
|   else if (eCSSUnit_Function == unit) {
 | |
|     const nsCSSValue::Array* array = GetArrayValue();
 | |
|     MOZ_ASSERT(array->Count() >= 1,
 | |
|                "Functions must have at least one element for the name.");
 | |
| 
 | |
|     const nsCSSValue& functionName = array->Item(0);
 | |
|     MOZ_ASSERT(functionName.GetUnit() == eCSSUnit_Enumerated,
 | |
|                "Functions must have an enumerated name.");
 | |
|     // The first argument is always of nsCSSKeyword type.
 | |
|     const nsCSSKeyword functionId = functionName.GetKeywordValue();
 | |
| 
 | |
|     // minmax(auto, <flex>) is equivalent to (and is our internal representation
 | |
|     // of) <flex>, and both are serialized as <flex>
 | |
|     if (functionId == eCSSKeyword_minmax &&
 | |
|         array->Count() == 3 &&
 | |
|         array->Item(1).GetUnit() == eCSSUnit_Auto &&
 | |
|         array->Item(2).GetUnit() == eCSSUnit_FlexFraction) {
 | |
|       array->Item(2).AppendToString(aProperty, aResult);
 | |
|       MOZ_ASSERT(aProperty == eCSSProperty_grid_template_columns ||
 | |
|                  aProperty == eCSSProperty_grid_template_rows ||
 | |
|                  aProperty == eCSSProperty_grid_auto_columns ||
 | |
|                  aProperty == eCSSProperty_grid_auto_rows);
 | |
|       return;
 | |
|     }
 | |
| 
 | |
|     /* Append the function name. */
 | |
|     NS_ConvertASCIItoUTF16 ident(nsCSSKeywords::GetStringValue(functionId));
 | |
|     // Bug 721136: Normalize the identifier to lowercase, except that things
 | |
|     // like scaleX should have the last character capitalized.  This matches
 | |
|     // what other browsers do.
 | |
|     switch (functionId) {
 | |
|       case eCSSKeyword_rotatex:
 | |
|       case eCSSKeyword_scalex:
 | |
|       case eCSSKeyword_skewx:
 | |
|       case eCSSKeyword_translatex:
 | |
|         ident.Replace(ident.Length() - 1, 1, char16_t('X'));
 | |
|         break;
 | |
| 
 | |
|       case eCSSKeyword_rotatey:
 | |
|       case eCSSKeyword_scaley:
 | |
|       case eCSSKeyword_skewy:
 | |
|       case eCSSKeyword_translatey:
 | |
|         ident.Replace(ident.Length() - 1, 1, char16_t('Y'));
 | |
|         break;
 | |
| 
 | |
|       case eCSSKeyword_rotatez:
 | |
|       case eCSSKeyword_scalez:
 | |
|       case eCSSKeyword_translatez:
 | |
|         ident.Replace(ident.Length() - 1, 1, char16_t('Z'));
 | |
|         break;
 | |
| 
 | |
|       default:
 | |
|         break;
 | |
|     }
 | |
|     nsStyleUtil::AppendEscapedCSSIdent(ident, aResult);
 | |
|     aResult.Append('(');
 | |
| 
 | |
|     switch (functionId) {
 | |
|       case eCSSKeyword_polygon:
 | |
|         AppendPolygonToString(aProperty, aResult);
 | |
|         break;
 | |
| 
 | |
|       case eCSSKeyword_circle:
 | |
|       case eCSSKeyword_ellipse:
 | |
|         AppendCircleOrEllipseToString(functionId, aProperty, aResult);
 | |
|         break;
 | |
| 
 | |
|       case eCSSKeyword_inset:
 | |
|         AppendInsetToString(aProperty, aResult);
 | |
|         break;
 | |
| 
 | |
|       default: {
 | |
|         // Now, step through the function contents, writing each of
 | |
|         // them as we go.
 | |
|         for (size_t index = 1; index < array->Count(); ++index) {
 | |
|           array->Item(index).AppendToString(aProperty, aResult);
 | |
| 
 | |
|           /* If we're not at the final element, append a comma. */
 | |
|           if (index + 1 != array->Count())
 | |
|             aResult.AppendLiteral(", ");
 | |
|         }
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     /* Finally, append the closing parenthesis. */
 | |
|     aResult.Append(')');
 | |
|   }
 | |
|   else if (IsCalcUnit()) {
 | |
|     MOZ_ASSERT(GetUnit() == eCSSUnit_Calc, "unexpected unit");
 | |
|     CSSValueSerializeCalcOps ops(aProperty, aResult);
 | |
|     css::SerializeCalc(*this, ops);
 | |
|   }
 | |
|   else if (eCSSUnit_Integer == unit) {
 | |
|     aResult.AppendInt(GetIntValue(), 10);
 | |
|   }
 | |
|   else if (eCSSUnit_Enumerated == unit) {
 | |
|     int32_t intValue = GetIntValue();
 | |
|     switch(aProperty) {
 | |
| 
 | |
| 
 | |
|     case eCSSProperty_text_combine_upright:
 | |
|       if (intValue <= NS_STYLE_TEXT_COMBINE_UPRIGHT_ALL) {
 | |
|         AppendASCIItoUTF16(nsCSSProps::LookupPropertyValue(aProperty, intValue),
 | |
|                            aResult);
 | |
|       } else if (intValue == NS_STYLE_TEXT_COMBINE_UPRIGHT_DIGITS_2) {
 | |
|         aResult.AppendLiteral("digits 2");
 | |
|       } else if (intValue == NS_STYLE_TEXT_COMBINE_UPRIGHT_DIGITS_3) {
 | |
|         aResult.AppendLiteral("digits 3");
 | |
|       } else {
 | |
|         aResult.AppendLiteral("digits 4");
 | |
|       }
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_text_decoration_line:
 | |
|       if (NS_STYLE_TEXT_DECORATION_LINE_NONE == intValue) {
 | |
|         AppendASCIItoUTF16(nsCSSProps::LookupPropertyValue(aProperty, intValue),
 | |
|                            aResult);
 | |
|       } else {
 | |
|         // Ignore the "override all" internal value.
 | |
|         // (It doesn't have a string representation.)
 | |
|         intValue &= ~NS_STYLE_TEXT_DECORATION_LINE_OVERRIDE_ALL;
 | |
|         nsStyleUtil::AppendBitmaskCSSValue(
 | |
|           aProperty, intValue,
 | |
|           NS_STYLE_TEXT_DECORATION_LINE_UNDERLINE,
 | |
|           NS_STYLE_TEXT_DECORATION_LINE_BLINK,
 | |
|           aResult);
 | |
|       }
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_paint_order:
 | |
|       static_assert
 | |
|         (NS_STYLE_PAINT_ORDER_BITWIDTH * NS_STYLE_PAINT_ORDER_LAST_VALUE <= 8,
 | |
|          "SVGStyleStruct::mPaintOrder and the following cast not big enough");
 | |
|       nsStyleUtil::AppendPaintOrderValue(static_cast<uint8_t>(GetIntValue()),
 | |
|                                          aResult);
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_font_synthesis:
 | |
|       nsStyleUtil::AppendBitmaskCSSValue(aProperty, intValue,
 | |
|                                          NS_FONT_SYNTHESIS_WEIGHT,
 | |
|                                          NS_FONT_SYNTHESIS_STYLE,
 | |
|                                          aResult);
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_font_variant_east_asian:
 | |
|       nsStyleUtil::AppendBitmaskCSSValue(aProperty, intValue,
 | |
|                                          NS_FONT_VARIANT_EAST_ASIAN_JIS78,
 | |
|                                          NS_FONT_VARIANT_EAST_ASIAN_RUBY,
 | |
|                                          aResult);
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_font_variant_ligatures:
 | |
|       nsStyleUtil::AppendBitmaskCSSValue(aProperty, intValue,
 | |
|                                          NS_FONT_VARIANT_LIGATURES_NONE,
 | |
|                                          NS_FONT_VARIANT_LIGATURES_NO_CONTEXTUAL,
 | |
|                                          aResult);
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_font_variant_numeric:
 | |
|       nsStyleUtil::AppendBitmaskCSSValue(aProperty, intValue,
 | |
|                                          NS_FONT_VARIANT_NUMERIC_LINING,
 | |
|                                          NS_FONT_VARIANT_NUMERIC_ORDINAL,
 | |
|                                          aResult);
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_grid_auto_flow:
 | |
|       nsStyleUtil::AppendBitmaskCSSValue(aProperty, intValue,
 | |
|                                          NS_STYLE_GRID_AUTO_FLOW_ROW,
 | |
|                                          NS_STYLE_GRID_AUTO_FLOW_DENSE,
 | |
|                                          aResult);
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_grid_column_start:
 | |
|     case eCSSProperty_grid_column_end:
 | |
|     case eCSSProperty_grid_row_start:
 | |
|     case eCSSProperty_grid_row_end:
 | |
|       // "span" is the only enumerated-unit value for these properties
 | |
|       aResult.AppendLiteral("span");
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_touch_action:
 | |
|       nsStyleUtil::AppendBitmaskCSSValue(aProperty, intValue,
 | |
|                                          NS_STYLE_TOUCH_ACTION_NONE,
 | |
|                                          NS_STYLE_TOUCH_ACTION_MANIPULATION,
 | |
|                                          aResult);
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_clip_path:
 | |
|       AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
 | |
|                             nsCSSProps::kClipPathGeometryBoxKTable),
 | |
|                          aResult);
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_shape_outside:
 | |
|       AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
 | |
|                             nsCSSProps::kShapeOutsideShapeBoxKTable),
 | |
|                          aResult);
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_contain:
 | |
|       if (intValue & NS_STYLE_CONTAIN_STRICT) {
 | |
|         NS_ASSERTION(intValue == (NS_STYLE_CONTAIN_STRICT | NS_STYLE_CONTAIN_ALL_BITS),
 | |
|                      "contain: strict should imply contain: layout style paint");
 | |
|         // Only output strict.
 | |
|         intValue = NS_STYLE_CONTAIN_STRICT;
 | |
|       }
 | |
|       nsStyleUtil::AppendBitmaskCSSValue(aProperty,
 | |
|                                          intValue,
 | |
|                                          NS_STYLE_CONTAIN_STRICT,
 | |
|                                          NS_STYLE_CONTAIN_PAINT,
 | |
|                                          aResult);
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_align_content:
 | |
|     case eCSSProperty_justify_content: {
 | |
|       AppendAlignJustifyValueToString(intValue & NS_STYLE_ALIGN_ALL_BITS, aResult);
 | |
|       auto fallback = intValue >> NS_STYLE_ALIGN_ALL_SHIFT;
 | |
|       if (fallback) {
 | |
|         MOZ_ASSERT(nsCSSProps::ValueToKeywordEnum(fallback & ~NS_STYLE_ALIGN_FLAG_BITS,
 | |
|                                                   nsCSSProps::kAlignSelfPosition)
 | |
|                    != eCSSKeyword_UNKNOWN, "unknown fallback value");
 | |
|         aResult.Append(' ');
 | |
|         AppendAlignJustifyValueToString(fallback, aResult);
 | |
|       }
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     case eCSSProperty_align_items:
 | |
|     case eCSSProperty_align_self:
 | |
|     case eCSSProperty_justify_items:
 | |
|     case eCSSProperty_justify_self:
 | |
|       AppendAlignJustifyValueToString(intValue, aResult);
 | |
|       break;
 | |
| 
 | |
|     case eCSSProperty_text_emphasis_position: {
 | |
|       nsStyleUtil::AppendBitmaskCSSValue(aProperty, intValue,
 | |
|                                          NS_STYLE_TEXT_EMPHASIS_POSITION_OVER,
 | |
|                                          NS_STYLE_TEXT_EMPHASIS_POSITION_RIGHT,
 | |
|                                          aResult);
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     case eCSSProperty_text_emphasis_style: {
 | |
|       auto fill = intValue & NS_STYLE_TEXT_EMPHASIS_STYLE_FILL_MASK;
 | |
|       AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(
 | |
|         fill, nsCSSProps::kTextEmphasisStyleFillKTable), aResult);
 | |
|       aResult.Append(' ');
 | |
|       auto shape = intValue & NS_STYLE_TEXT_EMPHASIS_STYLE_SHAPE_MASK;
 | |
|       AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(
 | |
|         shape, nsCSSProps::kTextEmphasisStyleShapeKTable), aResult);
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     default:
 | |
|       const nsCString& name = nsCSSProps::LookupPropertyValue(aProperty, intValue);
 | |
|       AppendASCIItoUTF16(name, aResult);
 | |
|       break;
 | |
|     }
 | |
|   }
 | |
|   else if (eCSSUnit_EnumColor == unit) {
 | |
|     // we can lookup the property in the ColorTable and then
 | |
|     // get a string mapping the name
 | |
|     nsAutoCString str;
 | |
|     if (nsCSSProps::GetColorName(GetIntValue(), str)){
 | |
|       AppendASCIItoUTF16(str, aResult);
 | |
|     } else {
 | |
|       MOZ_ASSERT(false, "bad color value");
 | |
|     }
 | |
|   }
 | |
|   else if (IsNumericColorUnit(unit)) {
 | |
|     nscolor color = GetColorValue();
 | |
|     // For brevity, we omit the alpha component if it's equal to 255 (full
 | |
|     // opaque). Also, we use "rgba" rather than "rgb" when the color includes
 | |
|     // the non-opaque alpha value, for backwards-compat (even though they're
 | |
|     // aliases as of css-color-4).
 | |
|     // e.g.:
 | |
|     //   rgba(1, 2, 3, 1.0) => rgb(1, 2, 3)
 | |
|     //   rgba(1, 2, 3, 0.5) => rgba(1, 2, 3, 0.5)
 | |
| 
 | |
|     uint8_t a = NS_GET_A(color);
 | |
|     bool showAlpha = (a != 255);
 | |
| 
 | |
|     if (showAlpha) {
 | |
|       aResult.AppendLiteral("rgba(");
 | |
|     } else {
 | |
|       aResult.AppendLiteral("rgb(");
 | |
|     }
 | |
| 
 | |
|     NS_NAMED_LITERAL_STRING(comma, ", ");
 | |
| 
 | |
|     aResult.AppendInt(NS_GET_R(color), 10);
 | |
|     aResult.Append(comma);
 | |
|     aResult.AppendInt(NS_GET_G(color), 10);
 | |
|     aResult.Append(comma);
 | |
|     aResult.AppendInt(NS_GET_B(color), 10);
 | |
|     if (showAlpha) {
 | |
|       aResult.Append(comma);
 | |
|       aResult.AppendFloat(nsStyleUtil::ColorComponentToFloat(a));
 | |
|     }
 | |
|     aResult.Append(char16_t(')'));
 | |
|   }
 | |
|   else if (eCSSUnit_ComplexColor == unit) {
 | |
|     StyleComplexColor color = GetStyleComplexColorValue();
 | |
|     nsCSSValue serializable;
 | |
|     if (color.IsCurrentColor()) {
 | |
|       serializable.SetIntValue(NS_COLOR_CURRENTCOLOR, eCSSUnit_EnumColor);
 | |
|     } else if (color.IsNumericColor()) {
 | |
|       serializable.SetColorValue(color.mColor);
 | |
|     } else {
 | |
|       MOZ_ASSERT_UNREACHABLE("Cannot serialize a complex color");
 | |
|     }
 | |
|     serializable.AppendToString(aProperty, aResult);
 | |
|   }
 | |
|   else if (eCSSUnit_URL == unit || eCSSUnit_Image == unit) {
 | |
|     aResult.AppendLiteral("url(");
 | |
|     nsStyleUtil::AppendEscapedCSSString(
 | |
|       nsDependentString(GetOriginalURLValue()), aResult);
 | |
|     aResult.Append(')');
 | |
|   }
 | |
|   else if (eCSSUnit_Element == unit) {
 | |
|     aResult.AppendLiteral("-moz-element(#");
 | |
|     nsAutoString tmpStr;
 | |
|     GetStringValue(tmpStr);
 | |
|     nsStyleUtil::AppendEscapedCSSIdent(tmpStr, aResult);
 | |
|     aResult.Append(')');
 | |
|   }
 | |
|   else if (eCSSUnit_Percent == unit) {
 | |
|     aResult.AppendFloat(GetPercentValue() * 100.0f);
 | |
|   }
 | |
|   else if (eCSSUnit_Percent < unit) {  // length unit
 | |
|     aResult.AppendFloat(GetFloatValue());
 | |
|   }
 | |
|   else if (eCSSUnit_Gradient == unit) {
 | |
|     nsCSSValueGradient* gradient = GetGradientValue();
 | |
| 
 | |
|     if (gradient->mIsLegacySyntax) {
 | |
|       if (gradient->mIsMozLegacySyntax) {
 | |
|         aResult.AppendLiteral("-moz-");
 | |
|       } else {
 | |
|         aResult.AppendLiteral("-webkit-");
 | |
|       }
 | |
|     }
 | |
|     if (gradient->mIsRepeating) {
 | |
|       aResult.AppendLiteral("repeating-");
 | |
|     }
 | |
|     if (gradient->mIsRadial) {
 | |
|       aResult.AppendLiteral("radial-gradient(");
 | |
|     } else {
 | |
|       aResult.AppendLiteral("linear-gradient(");
 | |
|     }
 | |
| 
 | |
|     bool needSep = false;
 | |
|     if (gradient->mIsRadial && !gradient->mIsLegacySyntax) {
 | |
|       if (!gradient->mIsExplicitSize) {
 | |
|         if (gradient->GetRadialShape().GetUnit() != eCSSUnit_None) {
 | |
|           MOZ_ASSERT(gradient->GetRadialShape().GetUnit() ==
 | |
|                      eCSSUnit_Enumerated,
 | |
|                      "bad unit for radial gradient shape");
 | |
|           int32_t intValue = gradient->GetRadialShape().GetIntValue();
 | |
|           MOZ_ASSERT(intValue != NS_STYLE_GRADIENT_SHAPE_LINEAR,
 | |
|                      "radial gradient with linear shape?!");
 | |
|           AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
 | |
|                                  nsCSSProps::kRadialGradientShapeKTable),
 | |
|                              aResult);
 | |
|           needSep = true;
 | |
|         }
 | |
| 
 | |
|         if (gradient->GetRadialSize().GetUnit() != eCSSUnit_None) {
 | |
|           if (needSep) {
 | |
|             aResult.Append(' ');
 | |
|           }
 | |
|           MOZ_ASSERT(gradient->GetRadialSize().GetUnit() == eCSSUnit_Enumerated,
 | |
|                      "bad unit for radial gradient size");
 | |
|           int32_t intValue = gradient->GetRadialSize().GetIntValue();
 | |
|           AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
 | |
|                                  nsCSSProps::kRadialGradientSizeKTable),
 | |
|                              aResult);
 | |
|           needSep = true;
 | |
|         }
 | |
|       } else {
 | |
|         MOZ_ASSERT(gradient->GetRadiusX().GetUnit() != eCSSUnit_None,
 | |
|                    "bad unit for radial gradient explicit size");
 | |
|         gradient->GetRadiusX().AppendToString(aProperty, aResult);
 | |
|         if (gradient->GetRadiusY().GetUnit() != eCSSUnit_None) {
 | |
|           aResult.Append(' ');
 | |
|           gradient->GetRadiusY().AppendToString(aProperty, aResult);
 | |
|         }
 | |
|         needSep = true;
 | |
|       }
 | |
|     }
 | |
|     if (!gradient->mIsRadial &&
 | |
|         !(gradient->mIsLegacySyntax && gradient->mIsMozLegacySyntax)) {
 | |
|       if (gradient->mBgPos.mXValue.GetUnit() != eCSSUnit_None ||
 | |
|           gradient->mBgPos.mYValue.GetUnit() != eCSSUnit_None) {
 | |
|         MOZ_ASSERT(gradient->mAngle.GetUnit() == eCSSUnit_None);
 | |
|         MOZ_ASSERT(gradient->mBgPos.mXValue.GetUnit() == eCSSUnit_Enumerated &&
 | |
|                    gradient->mBgPos.mYValue.GetUnit() == eCSSUnit_Enumerated,
 | |
|                    "unexpected unit");
 | |
|         if (!gradient->mIsLegacySyntax) {
 | |
|           aResult.AppendLiteral("to ");
 | |
|         }
 | |
|         bool didAppendX = false;
 | |
|         if (!(gradient->mBgPos.mXValue.GetIntValue() & NS_STYLE_IMAGELAYER_POSITION_CENTER)) {
 | |
|           gradient->mBgPos.mXValue.AppendToString(eCSSProperty_background_position_x,
 | |
|                                                   aResult);
 | |
|           didAppendX = true;
 | |
|         }
 | |
|         if (!(gradient->mBgPos.mYValue.GetIntValue() & NS_STYLE_IMAGELAYER_POSITION_CENTER)) {
 | |
|           if (didAppendX) {
 | |
|             // We're appending both an x-keyword and a y-keyword.
 | |
|             // Add a space between them here.
 | |
|             aResult.Append(' ');
 | |
|           }
 | |
|           gradient->mBgPos.mYValue.AppendToString(eCSSProperty_background_position_y,
 | |
|                                                   aResult);
 | |
|         }
 | |
|         needSep = true;
 | |
|       } else if (gradient->mAngle.GetUnit() != eCSSUnit_None) {
 | |
|         gradient->mAngle.AppendToString(aProperty, aResult);
 | |
|         needSep = true;
 | |
|       }
 | |
|     } else if (gradient->mBgPos.mXValue.GetUnit() != eCSSUnit_None ||
 | |
|         gradient->mBgPos.mYValue.GetUnit() != eCSSUnit_None ||
 | |
|         gradient->mAngle.GetUnit() != eCSSUnit_None) {
 | |
|       if (needSep) {
 | |
|         aResult.Append(' ');
 | |
|       }
 | |
|       if (gradient->mIsRadial && !gradient->mIsLegacySyntax) {
 | |
|         aResult.AppendLiteral("at ");
 | |
|       }
 | |
|       if (gradient->mBgPos.mXValue.GetUnit() != eCSSUnit_None) {
 | |
|         gradient->mBgPos.mXValue.AppendToString(eCSSProperty_background_position_x,
 | |
|                                                 aResult);
 | |
|         aResult.Append(' ');
 | |
|       }
 | |
|       if (gradient->mBgPos.mYValue.GetUnit() != eCSSUnit_None) {
 | |
|         gradient->mBgPos.mYValue.AppendToString(eCSSProperty_background_position_y,
 | |
|                                                 aResult);
 | |
|         aResult.Append(' ');
 | |
|       }
 | |
|       if (gradient->mAngle.GetUnit() != eCSSUnit_None) {
 | |
|         MOZ_ASSERT(gradient->mIsLegacySyntax,
 | |
|                    "angle is allowed only for legacy syntax");
 | |
|         gradient->mAngle.AppendToString(aProperty, aResult);
 | |
|       }
 | |
|       needSep = true;
 | |
|     }
 | |
| 
 | |
|     if (gradient->mIsRadial && gradient->mIsLegacySyntax &&
 | |
|         (gradient->GetRadialShape().GetUnit() != eCSSUnit_None ||
 | |
|          gradient->GetRadialSize().GetUnit() != eCSSUnit_None)) {
 | |
|       MOZ_ASSERT(!gradient->mIsExplicitSize);
 | |
|       if (needSep) {
 | |
|         aResult.AppendLiteral(", ");
 | |
|       }
 | |
|       if (gradient->GetRadialShape().GetUnit() != eCSSUnit_None) {
 | |
|         MOZ_ASSERT(gradient->GetRadialShape().GetUnit() == eCSSUnit_Enumerated,
 | |
|                    "bad unit for radial gradient shape");
 | |
|         int32_t intValue = gradient->GetRadialShape().GetIntValue();
 | |
|         MOZ_ASSERT(intValue != NS_STYLE_GRADIENT_SHAPE_LINEAR,
 | |
|                    "radial gradient with linear shape?!");
 | |
|         AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
 | |
|                                nsCSSProps::kRadialGradientShapeKTable),
 | |
|                            aResult);
 | |
|         aResult.Append(' ');
 | |
|       }
 | |
| 
 | |
|       if (gradient->GetRadialSize().GetUnit() != eCSSUnit_None) {
 | |
|         MOZ_ASSERT(gradient->GetRadialSize().GetUnit() == eCSSUnit_Enumerated,
 | |
|                    "bad unit for radial gradient size");
 | |
|         int32_t intValue = gradient->GetRadialSize().GetIntValue();
 | |
|         AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
 | |
|                                nsCSSProps::kRadialGradientSizeKTable),
 | |
|                            aResult);
 | |
|       }
 | |
|       needSep = true;
 | |
|     }
 | |
|     if (needSep) {
 | |
|       aResult.AppendLiteral(", ");
 | |
|     }
 | |
| 
 | |
|     for (uint32_t i = 0 ;;) {
 | |
|       bool isInterpolationHint = gradient->mStops[i].mIsInterpolationHint;
 | |
|       if (!isInterpolationHint) {
 | |
|         gradient->mStops[i].mColor.AppendToString(aProperty, aResult);
 | |
|       }
 | |
|       if (gradient->mStops[i].mLocation.GetUnit() != eCSSUnit_None) {
 | |
|         if (!isInterpolationHint) {
 | |
|           aResult.Append(' ');
 | |
|         }
 | |
|         gradient->mStops[i].mLocation.AppendToString(aProperty, aResult);
 | |
|       }
 | |
|       if (++i == gradient->mStops.Length()) {
 | |
|         break;
 | |
|       }
 | |
|       aResult.AppendLiteral(", ");
 | |
|     }
 | |
| 
 | |
|     aResult.Append(')');
 | |
|   } else if (eCSSUnit_TokenStream == unit) {
 | |
|     nsCSSPropertyID shorthand = mValue.mTokenStream->mShorthandPropertyID;
 | |
|     if (shorthand == eCSSProperty_UNKNOWN ||
 | |
|         nsCSSProps::PropHasFlags(shorthand, CSS_PROPERTY_IS_ALIAS) ||
 | |
|         aProperty == eCSSProperty__x_system_font) {
 | |
|       // We treat serialization of aliases like '-moz-transform' as a special
 | |
|       // case, since it really wants to be serialized as if it were a longhand
 | |
|       // even though it is implemented as a shorthand. We also need to
 | |
|       // serialize -x-system-font's token stream value, even though the
 | |
|       // value is set through the font shorthand.  This serialization
 | |
|       // of -x-system-font is needed when we need to output the
 | |
|       // 'font' shorthand followed by a number of overriding font
 | |
|       // longhand components.
 | |
|       aResult.Append(mValue.mTokenStream->mTokenStream);
 | |
|     }
 | |
|   } else if (eCSSUnit_Pair == unit) {
 | |
|     if (eCSSProperty_font_variant_alternates == aProperty) {
 | |
|       int32_t intValue = GetPairValue().mXValue.GetIntValue();
 | |
|       nsAutoString out;
 | |
| 
 | |
|       // simple, enumerated values
 | |
|       nsStyleUtil::AppendBitmaskCSSValue(aProperty,
 | |
|           intValue & NS_FONT_VARIANT_ALTERNATES_ENUMERATED_MASK,
 | |
|           NS_FONT_VARIANT_ALTERNATES_HISTORICAL,
 | |
|           NS_FONT_VARIANT_ALTERNATES_HISTORICAL,
 | |
|           out);
 | |
| 
 | |
|       // functional values
 | |
|       const nsCSSValueList *list = GetPairValue().mYValue.GetListValue();
 | |
|       AutoTArray<gfxAlternateValue,8> altValues;
 | |
| 
 | |
|       nsStyleUtil::ComputeFunctionalAlternates(list, altValues);
 | |
|       nsStyleUtil::SerializeFunctionalAlternates(altValues, out);
 | |
|       aResult.Append(out);
 | |
|     } else {
 | |
|       GetPairValue().AppendToString(aProperty, aResult);
 | |
|     }
 | |
|   } else if (eCSSUnit_Triplet == unit) {
 | |
|     GetTripletValue().AppendToString(aProperty, aResult);
 | |
|   } else if (eCSSUnit_Rect == unit) {
 | |
|     GetRectValue().AppendToString(aProperty, aResult);
 | |
|   } else if (eCSSUnit_List == unit || eCSSUnit_ListDep == unit) {
 | |
|     GetListValue()->AppendToString(aProperty, aResult);
 | |
|   } else if (eCSSUnit_SharedList == unit) {
 | |
|     GetSharedListValue()->AppendToString(aProperty, aResult);
 | |
|   } else if (eCSSUnit_PairList == unit || eCSSUnit_PairListDep == unit) {
 | |
|     switch (aProperty) {
 | |
|       case eCSSProperty_font_feature_settings:
 | |
|         nsStyleUtil::AppendFontFeatureSettings(*this, aResult);
 | |
|         break;
 | |
|       default:
 | |
|         GetPairListValue()->AppendToString(aProperty, aResult);
 | |
|         break;
 | |
|     }
 | |
|   } else if (eCSSUnit_GridTemplateAreas == unit) {
 | |
|     const mozilla::css::GridTemplateAreasValue* areas = GetGridTemplateAreas();
 | |
|     MOZ_ASSERT(!areas->mTemplates.IsEmpty(),
 | |
|                "Unexpected empty array in GridTemplateAreasValue");
 | |
|     nsStyleUtil::AppendEscapedCSSString(areas->mTemplates[0], aResult);
 | |
|     for (uint32_t i = 1; i < areas->mTemplates.Length(); i++) {
 | |
|       aResult.Append(char16_t(' '));
 | |
|       nsStyleUtil::AppendEscapedCSSString(areas->mTemplates[i], aResult);
 | |
|     }
 | |
|   } else if (eCSSUnit_FontFamilyList == unit) {
 | |
|     nsStyleUtil::AppendEscapedCSSFontFamilyList(mValue.mFontFamilyList,
 | |
|                                                 aResult);
 | |
|   } else if (eCSSUnit_AtomIdent == unit) {
 | |
|     nsDependentAtomString buffer(GetAtomValue());
 | |
|     nsStyleUtil::AppendEscapedCSSIdent(buffer, aResult);
 | |
|   }
 | |
| 
 | |
|   switch (unit) {
 | |
|     case eCSSUnit_Null:         break;
 | |
|     case eCSSUnit_Auto:         aResult.AppendLiteral("auto");     break;
 | |
|     case eCSSUnit_Inherit:      aResult.AppendLiteral("inherit");  break;
 | |
|     case eCSSUnit_Initial:      aResult.AppendLiteral("initial");  break;
 | |
|     case eCSSUnit_Unset:        aResult.AppendLiteral("unset");    break;
 | |
|     case eCSSUnit_None:         aResult.AppendLiteral("none");     break;
 | |
|     case eCSSUnit_Normal:       aResult.AppendLiteral("normal");   break;
 | |
|     case eCSSUnit_System_Font:  aResult.AppendLiteral("-moz-use-system-font"); break;
 | |
|     case eCSSUnit_All:          aResult.AppendLiteral("all"); break;
 | |
|     case eCSSUnit_Dummy:
 | |
|     case eCSSUnit_DummyInherit:
 | |
|       MOZ_ASSERT(false, "should never serialize");
 | |
|       break;
 | |
| 
 | |
|     case eCSSUnit_FontFamilyList: break;
 | |
|     case eCSSUnit_String:       break;
 | |
|     case eCSSUnit_Ident:        break;
 | |
|     case eCSSUnit_AtomIdent:    break;
 | |
|     case eCSSUnit_URL:          break;
 | |
|     case eCSSUnit_Image:        break;
 | |
|     case eCSSUnit_Element:      break;
 | |
|     case eCSSUnit_Array:        break;
 | |
|     case eCSSUnit_Attr:
 | |
|     case eCSSUnit_Cubic_Bezier:
 | |
|     case eCSSUnit_Steps:
 | |
|     case eCSSUnit_Symbols:
 | |
|     case eCSSUnit_Counter:
 | |
|     case eCSSUnit_Counters:     aResult.Append(char16_t(')'));    break;
 | |
|     case eCSSUnit_Local_Font:   break;
 | |
|     case eCSSUnit_Font_Format:  break;
 | |
|     case eCSSUnit_Function:     break;
 | |
|     case eCSSUnit_Calc:         break;
 | |
|     case eCSSUnit_Calc_Plus:    break;
 | |
|     case eCSSUnit_Calc_Minus:   break;
 | |
|     case eCSSUnit_Calc_Times_L: break;
 | |
|     case eCSSUnit_Calc_Times_R: break;
 | |
|     case eCSSUnit_Calc_Divided: break;
 | |
|     case eCSSUnit_Integer:      break;
 | |
|     case eCSSUnit_Enumerated:   break;
 | |
|     case eCSSUnit_EnumColor:             break;
 | |
|     case eCSSUnit_RGBColor:              break;
 | |
|     case eCSSUnit_RGBAColor:             break;
 | |
|     case eCSSUnit_HexColor:              break;
 | |
|     case eCSSUnit_ShortHexColor:         break;
 | |
|     case eCSSUnit_HexColorAlpha:         break;
 | |
|     case eCSSUnit_ShortHexColorAlpha:    break;
 | |
|     case eCSSUnit_PercentageRGBColor:    break;
 | |
|     case eCSSUnit_PercentageRGBAColor:   break;
 | |
|     case eCSSUnit_HSLColor:              break;
 | |
|     case eCSSUnit_HSLAColor:             break;
 | |
|     case eCSSUnit_ComplexColor:          break;
 | |
|     case eCSSUnit_Percent:      aResult.Append(char16_t('%'));    break;
 | |
|     case eCSSUnit_Number:       break;
 | |
|     case eCSSUnit_Gradient:     break;
 | |
|     case eCSSUnit_TokenStream:  break;
 | |
|     case eCSSUnit_Pair:         break;
 | |
|     case eCSSUnit_Triplet:      break;
 | |
|     case eCSSUnit_Rect:         break;
 | |
|     case eCSSUnit_List:         break;
 | |
|     case eCSSUnit_ListDep:      break;
 | |
|     case eCSSUnit_SharedList:   break;
 | |
|     case eCSSUnit_PairList:     break;
 | |
|     case eCSSUnit_PairListDep:  break;
 | |
|     case eCSSUnit_GridTemplateAreas:     break;
 | |
| 
 | |
|     case eCSSUnit_Inch:         aResult.AppendLiteral("in");   break;
 | |
|     case eCSSUnit_Millimeter:   aResult.AppendLiteral("mm");   break;
 | |
|     case eCSSUnit_Centimeter:   aResult.AppendLiteral("cm");   break;
 | |
|     case eCSSUnit_Point:        aResult.AppendLiteral("pt");   break;
 | |
|     case eCSSUnit_Pica:         aResult.AppendLiteral("pc");   break;
 | |
|     case eCSSUnit_Quarter:      aResult.AppendLiteral("q");    break;
 | |
| 
 | |
|     case eCSSUnit_ViewportWidth:  aResult.AppendLiteral("vw");   break;
 | |
|     case eCSSUnit_ViewportHeight: aResult.AppendLiteral("vh");   break;
 | |
|     case eCSSUnit_ViewportMin:    aResult.AppendLiteral("vmin"); break;
 | |
|     case eCSSUnit_ViewportMax:    aResult.AppendLiteral("vmax"); break;
 | |
| 
 | |
|     case eCSSUnit_EM:           aResult.AppendLiteral("em");   break;
 | |
|     case eCSSUnit_XHeight:      aResult.AppendLiteral("ex");   break;
 | |
|     case eCSSUnit_Char:         aResult.AppendLiteral("ch");   break;
 | |
|     case eCSSUnit_RootEM:       aResult.AppendLiteral("rem");  break;
 | |
| 
 | |
|     case eCSSUnit_Pixel:        aResult.AppendLiteral("px");   break;
 | |
| 
 | |
|     case eCSSUnit_Degree:       aResult.AppendLiteral("deg");  break;
 | |
|     case eCSSUnit_Grad:         aResult.AppendLiteral("grad"); break;
 | |
|     case eCSSUnit_Radian:       aResult.AppendLiteral("rad");  break;
 | |
|     case eCSSUnit_Turn:         aResult.AppendLiteral("turn");  break;
 | |
| 
 | |
|     case eCSSUnit_Hertz:        aResult.AppendLiteral("Hz");   break;
 | |
|     case eCSSUnit_Kilohertz:    aResult.AppendLiteral("kHz");  break;
 | |
| 
 | |
|     case eCSSUnit_Seconds:      aResult.Append(char16_t('s'));    break;
 | |
|     case eCSSUnit_Milliseconds: aResult.AppendLiteral("ms");   break;
 | |
| 
 | |
|     case eCSSUnit_FlexFraction: aResult.AppendLiteral("fr");   break;
 | |
|   }
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValue::SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   size_t n = 0;
 | |
| 
 | |
|   switch (GetUnit()) {
 | |
|     // No value: nothing extra to measure.
 | |
|     case eCSSUnit_Null:
 | |
|     case eCSSUnit_Auto:
 | |
|     case eCSSUnit_Inherit:
 | |
|     case eCSSUnit_Initial:
 | |
|     case eCSSUnit_Unset:
 | |
|     case eCSSUnit_None:
 | |
|     case eCSSUnit_Normal:
 | |
|     case eCSSUnit_System_Font:
 | |
|     case eCSSUnit_All:
 | |
|     case eCSSUnit_Dummy:
 | |
|     case eCSSUnit_DummyInherit:
 | |
|       break;
 | |
| 
 | |
|     // String
 | |
|     case eCSSUnit_String:
 | |
|     case eCSSUnit_Ident:
 | |
|     case eCSSUnit_Attr:
 | |
|     case eCSSUnit_Local_Font:
 | |
|     case eCSSUnit_Font_Format:
 | |
|     case eCSSUnit_Element:
 | |
|       n += mValue.mString->SizeOfIncludingThisIfUnshared(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // Array
 | |
|     case eCSSUnit_Array:
 | |
|     case eCSSUnit_Counter:
 | |
|     case eCSSUnit_Counters:
 | |
|     case eCSSUnit_Cubic_Bezier:
 | |
|     case eCSSUnit_Steps:
 | |
|     case eCSSUnit_Symbols:
 | |
|     case eCSSUnit_Function:
 | |
|     case eCSSUnit_Calc:
 | |
|     case eCSSUnit_Calc_Plus:
 | |
|     case eCSSUnit_Calc_Minus:
 | |
|     case eCSSUnit_Calc_Times_L:
 | |
|     case eCSSUnit_Calc_Times_R:
 | |
|     case eCSSUnit_Calc_Divided:
 | |
|       break;
 | |
| 
 | |
|     // URL
 | |
|     case eCSSUnit_URL:
 | |
|       n += mValue.mURL->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // Image
 | |
|     case eCSSUnit_Image:
 | |
|       n += mValue.mImage->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // Gradient
 | |
|     case eCSSUnit_Gradient:
 | |
|       n += mValue.mGradient->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // TokenStream
 | |
|     case eCSSUnit_TokenStream:
 | |
|       n += mValue.mTokenStream->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // Pair
 | |
|     case eCSSUnit_Pair:
 | |
|       n += mValue.mPair->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // Triplet
 | |
|     case eCSSUnit_Triplet:
 | |
|       n += mValue.mTriplet->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // Rect
 | |
|     case eCSSUnit_Rect:
 | |
|       n += mValue.mRect->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // List
 | |
|     case eCSSUnit_List:
 | |
|       n += mValue.mList->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // ListDep: not measured because it's non-owning.
 | |
|     case eCSSUnit_ListDep:
 | |
|       break;
 | |
| 
 | |
|     // SharedList
 | |
|     case eCSSUnit_SharedList:
 | |
|       // Makes more sense not to measure, since it most cases the list
 | |
|       // will be shared.
 | |
|       break;
 | |
| 
 | |
|     // PairList
 | |
|     case eCSSUnit_PairList:
 | |
|       n += mValue.mPairList->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // PairListDep: not measured because it's non-owning.
 | |
|     case eCSSUnit_PairListDep:
 | |
|       break;
 | |
| 
 | |
|     // GridTemplateAreas
 | |
|     case eCSSUnit_GridTemplateAreas:
 | |
|       n += mValue.mGridTemplateAreas->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     case eCSSUnit_FontFamilyList:
 | |
|       // The SharedFontList is a refcounted object, but is unique per
 | |
|       // declaration. We don't measure the references from computed
 | |
|       // values.
 | |
|       n += mValue.mFontFamilyList->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // Atom is always shared, and thus should not be counted.
 | |
|     case eCSSUnit_AtomIdent:
 | |
|       break;
 | |
| 
 | |
|     // Int: nothing extra to measure.
 | |
|     case eCSSUnit_Integer:
 | |
|     case eCSSUnit_Enumerated:
 | |
|     case eCSSUnit_EnumColor:
 | |
|       break;
 | |
| 
 | |
|     // Integer Color: nothing extra to measure.
 | |
|     case eCSSUnit_RGBColor:
 | |
|     case eCSSUnit_RGBAColor:
 | |
|     case eCSSUnit_HexColor:
 | |
|     case eCSSUnit_ShortHexColor:
 | |
|     case eCSSUnit_HexColorAlpha:
 | |
|     case eCSSUnit_ShortHexColorAlpha:
 | |
|       break;
 | |
| 
 | |
|     // Float Color
 | |
|     case eCSSUnit_PercentageRGBColor:
 | |
|     case eCSSUnit_PercentageRGBAColor:
 | |
|     case eCSSUnit_HSLColor:
 | |
|     case eCSSUnit_HSLAColor:
 | |
|       n += mValue.mFloatColor->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // Complex Color
 | |
|     case eCSSUnit_ComplexColor:
 | |
|       n += mValue.mComplexColor->SizeOfIncludingThis(aMallocSizeOf);
 | |
|       break;
 | |
| 
 | |
|     // Float: nothing extra to measure.
 | |
|     case eCSSUnit_Percent:
 | |
|     case eCSSUnit_Number:
 | |
|     case eCSSUnit_ViewportWidth:
 | |
|     case eCSSUnit_ViewportHeight:
 | |
|     case eCSSUnit_ViewportMin:
 | |
|     case eCSSUnit_ViewportMax:
 | |
|     case eCSSUnit_EM:
 | |
|     case eCSSUnit_XHeight:
 | |
|     case eCSSUnit_Char:
 | |
|     case eCSSUnit_RootEM:
 | |
|     case eCSSUnit_Point:
 | |
|     case eCSSUnit_Inch:
 | |
|     case eCSSUnit_Millimeter:
 | |
|     case eCSSUnit_Centimeter:
 | |
|     case eCSSUnit_Pica:
 | |
|     case eCSSUnit_Pixel:
 | |
|     case eCSSUnit_Quarter:
 | |
|     case eCSSUnit_Degree:
 | |
|     case eCSSUnit_Grad:
 | |
|     case eCSSUnit_Turn:
 | |
|     case eCSSUnit_Radian:
 | |
|     case eCSSUnit_Hertz:
 | |
|     case eCSSUnit_Kilohertz:
 | |
|     case eCSSUnit_Seconds:
 | |
|     case eCSSUnit_Milliseconds:
 | |
|     case eCSSUnit_FlexFraction:
 | |
|       break;
 | |
| 
 | |
|     default:
 | |
|       MOZ_ASSERT(false, "bad nsCSSUnit");
 | |
|       break;
 | |
|   }
 | |
| 
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| // --- nsCSSValueList -----------------
 | |
| 
 | |
| nsCSSValueList::~nsCSSValueList()
 | |
| {
 | |
|   MOZ_COUNT_DTOR(nsCSSValueList);
 | |
|   NS_CSS_DELETE_LIST_MEMBER(nsCSSValueList, this, mNext);
 | |
| }
 | |
| 
 | |
| nsCSSValueList*
 | |
| nsCSSValueList::Clone() const
 | |
| {
 | |
|   nsCSSValueList* result = new nsCSSValueList(*this);
 | |
|   nsCSSValueList* dest = result;
 | |
|   const nsCSSValueList* src = this->mNext;
 | |
|   while (src) {
 | |
|     dest->mNext = new nsCSSValueList(*src);
 | |
|     dest = dest->mNext;
 | |
|     src = src->mNext;
 | |
|   }
 | |
| 
 | |
|   MOZ_ASSERT(result, "shouldn't return null; supposed to be infallible");
 | |
|   return result;
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValueList::CloneInto(nsCSSValueList* aList) const
 | |
| {
 | |
|   NS_ASSERTION(!aList->mNext, "Must be an empty list!");
 | |
|   aList->mValue = mValue;
 | |
|   aList->mNext = mNext ? mNext->Clone() : nullptr;
 | |
| }
 | |
| 
 | |
| static void
 | |
| AppendValueListToString(const nsCSSValueList* val,
 | |
|                         nsCSSPropertyID aProperty, nsAString& aResult)
 | |
| {
 | |
|   for (;;) {
 | |
|     val->mValue.AppendToString(aProperty, aResult);
 | |
|     val = val->mNext;
 | |
|     if (!val)
 | |
|       break;
 | |
| 
 | |
|     if (nsCSSProps::PropHasFlags(aProperty,
 | |
|                                  CSS_PROPERTY_VALUE_LIST_USES_COMMAS))
 | |
|       aResult.Append(char16_t(','));
 | |
|     aResult.Append(char16_t(' '));
 | |
|   }
 | |
| }
 | |
| 
 | |
| static void
 | |
| AppendGridTemplateToString(const nsCSSValueList* val,
 | |
|                            nsCSSPropertyID aProperty, nsAString& aResult)
 | |
| {
 | |
|   // This is called for the "list" that's the top-level value of the property.
 | |
|   bool isSubgrid = false;
 | |
|   for (;;) {
 | |
|     bool addSpaceSeparator = true;
 | |
|     nsCSSUnit unit = val->mValue.GetUnit();
 | |
| 
 | |
|     if (unit == eCSSUnit_Enumerated &&
 | |
|         val->mValue.GetIntValue() == NS_STYLE_GRID_TEMPLATE_SUBGRID) {
 | |
|       MOZ_ASSERT(!isSubgrid, "saw subgrid once already");
 | |
|       isSubgrid = true;
 | |
|       aResult.AppendLiteral("subgrid");
 | |
| 
 | |
|     } else if (unit == eCSSUnit_Pair) {
 | |
|       // This is a repeat 'auto-fill' / 'auto-fit'.
 | |
|       const nsCSSValuePair& pair = val->mValue.GetPairValue();
 | |
|       switch (pair.mXValue.GetIntValue()) {
 | |
|         case NS_STYLE_GRID_REPEAT_AUTO_FILL:
 | |
|           aResult.AppendLiteral("repeat(auto-fill, ");
 | |
|           break;
 | |
|         case NS_STYLE_GRID_REPEAT_AUTO_FIT:
 | |
|           aResult.AppendLiteral("repeat(auto-fit, ");
 | |
|           break;
 | |
|         default:
 | |
|           MOZ_ASSERT_UNREACHABLE("unexpected enum value");
 | |
|       }
 | |
|       const nsCSSValueList* repeatList = pair.mYValue.GetListValue();
 | |
|       if (repeatList->mValue.GetUnit() != eCSSUnit_Null) {
 | |
|         aResult.Append('[');
 | |
|         AppendValueListToString(repeatList->mValue.GetListValue(), aProperty,
 | |
|                                 aResult);
 | |
|         aResult.Append(']');
 | |
|         if (!isSubgrid) {
 | |
|           aResult.Append(' ');
 | |
|         }
 | |
|       } else if (isSubgrid) {
 | |
|         aResult.AppendLiteral("[]");
 | |
|       }
 | |
|       if (!isSubgrid) {
 | |
|         repeatList = repeatList->mNext;
 | |
|         repeatList->mValue.AppendToString(aProperty, aResult);
 | |
|         repeatList = repeatList->mNext;
 | |
|         if (repeatList->mValue.GetUnit() != eCSSUnit_Null) {
 | |
|           aResult.AppendLiteral(" [");
 | |
|           AppendValueListToString(repeatList->mValue.GetListValue(), aProperty,
 | |
|                                   aResult);
 | |
|           aResult.Append(']');
 | |
|         }
 | |
|       }
 | |
|       aResult.Append(')');
 | |
| 
 | |
|     } else if (unit == eCSSUnit_Null) {
 | |
|       // Empty or omitted <line-names>.
 | |
|       if (isSubgrid) {
 | |
|         aResult.AppendLiteral("[]");
 | |
|       } else {
 | |
|         // Serializes to nothing.
 | |
|         addSpaceSeparator = false;  // Avoid a double space.
 | |
|       }
 | |
| 
 | |
|     } else if (unit == eCSSUnit_List || unit == eCSSUnit_ListDep) {
 | |
|       // Non-empty <line-names>
 | |
|       aResult.Append('[');
 | |
|       AppendValueListToString(val->mValue.GetListValue(), aProperty, aResult);
 | |
|       aResult.Append(']');
 | |
| 
 | |
|     } else {
 | |
|       // <track-size>
 | |
|       val->mValue.AppendToString(aProperty, aResult);
 | |
|       if (!isSubgrid &&
 | |
|           val->mNext &&
 | |
|           val->mNext->mValue.GetUnit() == eCSSUnit_Null &&
 | |
|           !val->mNext->mNext) {
 | |
|         // Break out of the loop early to avoid a trailing space.
 | |
|         break;
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     val = val->mNext;
 | |
|     if (!val) {
 | |
|       break;
 | |
|     }
 | |
| 
 | |
|     if (addSpaceSeparator) {
 | |
|       aResult.Append(char16_t(' '));
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValueList::AppendToString(nsCSSPropertyID aProperty,
 | |
|                                nsAString& aResult) const
 | |
| {
 | |
|   if (aProperty == eCSSProperty_grid_template_columns ||
 | |
|       aProperty == eCSSProperty_grid_template_rows) {
 | |
|     AppendGridTemplateToString(this, aProperty, aResult);
 | |
|   } else {
 | |
|     AppendValueListToString(this, aProperty, aResult);
 | |
|   }
 | |
| }
 | |
| 
 | |
| /* static */ bool
 | |
| nsCSSValueList::Equal(const nsCSSValueList* aList1,
 | |
|                       const nsCSSValueList* aList2)
 | |
| {
 | |
|   if (aList1 == aList2) {
 | |
|     return true;
 | |
|   }
 | |
| 
 | |
|   const nsCSSValueList *p1 = aList1, *p2 = aList2;
 | |
|   for ( ; p1 && p2; p1 = p1->mNext, p2 = p2->mNext) {
 | |
|     if (p1->mValue != p2->mValue)
 | |
|       return false;
 | |
|   }
 | |
|   return !p1 && !p2; // true if same length, false otherwise
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValueList::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   size_t n = 0;
 | |
|   const nsCSSValueList* v = this;
 | |
|   while (v) {
 | |
|     n += aMallocSizeOf(v);
 | |
|     n += v->mValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     v = v->mNext;
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValueList_heap::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|     n += mValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mNext ? mNext->SizeOfIncludingThis(aMallocSizeOf) : 0;
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| // --- nsCSSValueSharedList -----------------
 | |
| 
 | |
| nsCSSValueSharedList::~nsCSSValueSharedList()
 | |
| {
 | |
|   if (mHead) {
 | |
|     NS_CSS_DELETE_LIST_MEMBER(nsCSSValueList, mHead, mNext);
 | |
|     delete mHead;
 | |
|   }
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValueSharedList::AppendToString(nsCSSPropertyID aProperty,
 | |
|                                      nsAString& aResult) const
 | |
| {
 | |
|   if (mHead) {
 | |
|     mHead->AppendToString(aProperty, aResult);
 | |
|   }
 | |
| }
 | |
| 
 | |
| bool
 | |
| nsCSSValueSharedList::operator==(const nsCSSValueSharedList& aOther) const
 | |
| {
 | |
|   return nsCSSValueList::Equal(mHead, aOther.mHead);
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValueSharedList::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|     n += mHead->SizeOfIncludingThis(aMallocSizeOf);
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| // --- nsCSSRect -----------------
 | |
| 
 | |
| nsCSSRect::nsCSSRect(void)
 | |
| {
 | |
|   MOZ_COUNT_CTOR(nsCSSRect);
 | |
| }
 | |
| 
 | |
| nsCSSRect::nsCSSRect(const nsCSSRect& aCopy)
 | |
|   : mTop(aCopy.mTop),
 | |
|     mRight(aCopy.mRight),
 | |
|     mBottom(aCopy.mBottom),
 | |
|     mLeft(aCopy.mLeft)
 | |
| {
 | |
|   MOZ_COUNT_CTOR(nsCSSRect);
 | |
| }
 | |
| 
 | |
| nsCSSRect::~nsCSSRect()
 | |
| {
 | |
|   MOZ_COUNT_DTOR(nsCSSRect);
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSRect::AppendToString(nsCSSPropertyID aProperty,
 | |
|                           nsAString& aResult) const
 | |
| {
 | |
|   MOZ_ASSERT(mTop.GetUnit() != eCSSUnit_Null &&
 | |
|              mTop.GetUnit() != eCSSUnit_Inherit &&
 | |
|              mTop.GetUnit() != eCSSUnit_Initial &&
 | |
|              mTop.GetUnit() != eCSSUnit_Unset,
 | |
|              "parser should have used a bare value");
 | |
| 
 | |
|   if (eCSSProperty_border_image_slice == aProperty ||
 | |
|       eCSSProperty_border_image_width == aProperty ||
 | |
|       eCSSProperty_border_image_outset == aProperty) {
 | |
|     nsCSSPropertyID props[] = { aProperty, aProperty, aProperty, aProperty };
 | |
|     const nsCSSValue* values[] = { &mTop, &mRight, &mBottom, &mLeft };
 | |
|     nsCSSValue::AppendSidesShorthandToString(props, values,
 | |
|                                              aResult);
 | |
|   } else if (eCSSProperty_DOM == aProperty) {
 | |
|      NS_NAMED_LITERAL_STRING(space, " ");
 | |
| 
 | |
|     mTop.AppendToString(aProperty, aResult);
 | |
|     aResult.Append(space);
 | |
|     mRight.AppendToString(aProperty, aResult);
 | |
|     aResult.Append(space);
 | |
|     mBottom.AppendToString(aProperty, aResult);
 | |
|     aResult.Append(space);
 | |
|     mLeft.AppendToString(aProperty, aResult);
 | |
|   } else {
 | |
|     NS_NAMED_LITERAL_STRING(comma, ", ");
 | |
| 
 | |
|     aResult.AppendLiteral("rect(");
 | |
|     mTop.AppendToString(aProperty, aResult);
 | |
|     aResult.Append(comma);
 | |
|     mRight.AppendToString(aProperty, aResult);
 | |
|     aResult.Append(comma);
 | |
|     mBottom.AppendToString(aProperty, aResult);
 | |
|     aResult.Append(comma);
 | |
|     mLeft.AppendToString(aProperty, aResult);
 | |
|     aResult.Append(char16_t(')'));
 | |
|   }
 | |
| }
 | |
| 
 | |
| void nsCSSRect::SetAllSidesTo(const nsCSSValue& aValue)
 | |
| {
 | |
|   mTop = aValue;
 | |
|   mRight = aValue;
 | |
|   mBottom = aValue;
 | |
|   mLeft = aValue;
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSRect_heap::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|     n += mTop   .SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mRight .SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mBottom.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mLeft  .SizeOfExcludingThis(aMallocSizeOf);
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| static_assert(eSideTop == 0 && eSideRight == 1 &&
 | |
|               eSideBottom == 2 && eSideLeft == 3,
 | |
|               "box side constants not top/right/bottom/left == 0/1/2/3");
 | |
| 
 | |
| /* static */ const nsCSSRect::side_type nsCSSRect::sides[4] = {
 | |
|   &nsCSSRect::mTop,
 | |
|   &nsCSSRect::mRight,
 | |
|   &nsCSSRect::mBottom,
 | |
|   &nsCSSRect::mLeft,
 | |
| };
 | |
| 
 | |
| // --- nsCSSValuePair -----------------
 | |
| 
 | |
| void
 | |
| nsCSSValuePair::AppendToString(nsCSSPropertyID aProperty,
 | |
|                                nsAString& aResult) const
 | |
| {
 | |
|   mXValue.AppendToString(aProperty, aResult);
 | |
|   if (mYValue.GetUnit() != eCSSUnit_Null) {
 | |
|     aResult.Append(char16_t(' '));
 | |
|     mYValue.AppendToString(aProperty, aResult);
 | |
|   }
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValuePair::SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   size_t n = 0;
 | |
|   n += mXValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|   n += mYValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValuePair_heap::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|     n += mXValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mYValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| // --- nsCSSValueTriplet -----------------
 | |
| 
 | |
| void
 | |
| nsCSSValueTriplet::AppendToString(nsCSSPropertyID aProperty,
 | |
|                                   nsAString& aResult) const
 | |
| {
 | |
|   mXValue.AppendToString(aProperty, aResult);
 | |
|   if (mYValue.GetUnit() != eCSSUnit_Null) {
 | |
|     aResult.Append(char16_t(' '));
 | |
|     mYValue.AppendToString(aProperty, aResult);
 | |
|     if (mZValue.GetUnit() != eCSSUnit_Null) {
 | |
|       aResult.Append(char16_t(' '));
 | |
|       mZValue.AppendToString(aProperty, aResult);
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValueTriplet_heap::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|     n += mXValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mYValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mZValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| // --- nsCSSValuePairList -----------------
 | |
| 
 | |
| nsCSSValuePairList::~nsCSSValuePairList()
 | |
| {
 | |
|   MOZ_COUNT_DTOR(nsCSSValuePairList);
 | |
|   NS_CSS_DELETE_LIST_MEMBER(nsCSSValuePairList, this, mNext);
 | |
| }
 | |
| 
 | |
| nsCSSValuePairList*
 | |
| nsCSSValuePairList::Clone() const
 | |
| {
 | |
|   nsCSSValuePairList* result = new nsCSSValuePairList(*this);
 | |
|   nsCSSValuePairList* dest = result;
 | |
|   const nsCSSValuePairList* src = this->mNext;
 | |
|   while (src) {
 | |
|     dest->mNext = new nsCSSValuePairList(*src);
 | |
|     dest = dest->mNext;
 | |
|     src = src->mNext;
 | |
|   }
 | |
| 
 | |
|   MOZ_ASSERT(result, "shouldn't return null; supposed to be infallible");
 | |
|   return result;
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValuePairList::AppendToString(nsCSSPropertyID aProperty,
 | |
|                                    nsAString& aResult) const
 | |
| {
 | |
|   const nsCSSValuePairList* item = this;
 | |
|   for (;;) {
 | |
|     MOZ_ASSERT(item->mXValue.GetUnit() != eCSSUnit_Null,
 | |
|                "unexpected null unit");
 | |
|     item->mXValue.AppendToString(aProperty, aResult);
 | |
|     if (item->mXValue.GetUnit() != eCSSUnit_Inherit &&
 | |
|         item->mXValue.GetUnit() != eCSSUnit_Initial &&
 | |
|         item->mXValue.GetUnit() != eCSSUnit_Unset &&
 | |
|         item->mYValue.GetUnit() != eCSSUnit_Null) {
 | |
|       aResult.Append(char16_t(' '));
 | |
|       item->mYValue.AppendToString(aProperty, aResult);
 | |
|     }
 | |
|     item = item->mNext;
 | |
|     if (!item)
 | |
|       break;
 | |
| 
 | |
|     if (nsCSSProps::PropHasFlags(aProperty,
 | |
|                                  CSS_PROPERTY_VALUE_LIST_USES_COMMAS) ||
 | |
|         aProperty == eCSSProperty_clip_path ||
 | |
|         aProperty == eCSSProperty_shape_outside)
 | |
|       aResult.Append(char16_t(','));
 | |
|     aResult.Append(char16_t(' '));
 | |
|   }
 | |
| }
 | |
| 
 | |
| /* static */ bool
 | |
| nsCSSValuePairList::Equal(const nsCSSValuePairList* aList1,
 | |
|                           const nsCSSValuePairList* aList2)
 | |
| {
 | |
|   if (aList1 == aList2) {
 | |
|     return true;
 | |
|   }
 | |
| 
 | |
|   const nsCSSValuePairList *p1 = aList1, *p2 = aList2;
 | |
|   for ( ; p1 && p2; p1 = p1->mNext, p2 = p2->mNext) {
 | |
|     if (p1->mXValue != p2->mXValue ||
 | |
|         p1->mYValue != p2->mYValue)
 | |
|       return false;
 | |
|   }
 | |
|   return !p1 && !p2; // true if same length, false otherwise
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValuePairList::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   size_t n = 0;
 | |
|   const nsCSSValuePairList* v = this;
 | |
|   while (v) {
 | |
|     n += aMallocSizeOf(v);
 | |
|     n += v->mXValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += v->mYValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     v = v->mNext;
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValuePairList_heap::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|     n += mXValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mYValue.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mNext ? mNext->SizeOfIncludingThis(aMallocSizeOf) : 0;
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValue::Array::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   size_t n = aMallocSizeOf(this);
 | |
|   for (size_t i = 0; i < mCount; i++) {
 | |
|     n += mArray[i].SizeOfExcludingThis(aMallocSizeOf);
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| css::URLValueData::URLValueData(already_AddRefed<PtrHolder<nsIURI>> aURI,
 | |
|                                 const nsAString& aString,
 | |
|                                 already_AddRefed<URLExtraData> aExtraData)
 | |
|   : mURI(Move(aURI))
 | |
|   , mExtraData(Move(aExtraData))
 | |
|   , mURIResolved(true)
 | |
|   , mStrings(aString)
 | |
|   , mUsingRustString(false)
 | |
| {
 | |
|   MOZ_ASSERT(mExtraData);
 | |
|   MOZ_ASSERT(mExtraData->GetPrincipal());
 | |
| }
 | |
| 
 | |
| css::URLValueData::URLValueData(already_AddRefed<PtrHolder<nsIURI>> aURI,
 | |
|                                 ServoRawOffsetArc<RustString> aString,
 | |
|                                 already_AddRefed<URLExtraData> aExtraData)
 | |
|   : mURI(Move(aURI))
 | |
|   , mExtraData(Move(aExtraData))
 | |
|   , mURIResolved(true)
 | |
|   , mStrings(aString)
 | |
|   , mUsingRustString(true)
 | |
| {
 | |
|   MOZ_ASSERT(mExtraData);
 | |
|   MOZ_ASSERT(mExtraData->GetPrincipal());
 | |
| }
 | |
| 
 | |
| css::URLValueData::URLValueData(const nsAString& aString,
 | |
|                                 already_AddRefed<URLExtraData> aExtraData)
 | |
|   : mExtraData(Move(aExtraData))
 | |
|   , mURIResolved(false)
 | |
|   , mStrings(aString)
 | |
|   , mUsingRustString(false)
 | |
| {
 | |
|   MOZ_ASSERT(mExtraData);
 | |
|   MOZ_ASSERT(mExtraData->GetPrincipal());
 | |
| }
 | |
| 
 | |
| css::URLValueData::URLValueData(ServoRawOffsetArc<RustString> aString,
 | |
|                                 already_AddRefed<URLExtraData> aExtraData)
 | |
|   : mExtraData(Move(aExtraData))
 | |
|   , mURIResolved(false)
 | |
|   , mStrings(aString)
 | |
|   , mUsingRustString(true)
 | |
| {
 | |
|   MOZ_ASSERT(mExtraData);
 | |
|   MOZ_ASSERT(mExtraData->GetPrincipal());
 | |
| }
 | |
| 
 | |
| css::URLValueData::~URLValueData()
 | |
| {
 | |
|   if (mUsingRustString) {
 | |
|     Servo_ReleaseArcStringData(&mStrings.mRustString);
 | |
|   } else {
 | |
|     mStrings.mString.~nsString();
 | |
|   }
 | |
| }
 | |
| 
 | |
| bool
 | |
| css::URLValueData::Equals(const URLValueData& aOther) const
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
| 
 | |
|   bool eq;
 | |
|   const URLExtraData* self = mExtraData;
 | |
|   const URLExtraData* other = aOther.mExtraData;
 | |
|   bool stringsEqual;
 | |
|   if (mUsingRustString && aOther.mUsingRustString) {
 | |
|     stringsEqual = GetRustString() == aOther.GetRustString();
 | |
|   } else {
 | |
|     stringsEqual = GetUTF16String() == aOther.GetUTF16String();
 | |
|   }
 | |
|   return stringsEqual &&
 | |
|           (GetURI() == aOther.GetURI() || // handles null == null
 | |
|            (mURI && aOther.mURI &&
 | |
|             NS_SUCCEEDED(mURI->Equals(aOther.mURI, &eq)) &&
 | |
|             eq)) &&
 | |
|           (self->BaseURI() == other->BaseURI() ||
 | |
|            (NS_SUCCEEDED(self->BaseURI()->Equals(other->BaseURI(), &eq)) &&
 | |
|             eq)) &&
 | |
|           (self->GetPrincipal() == other->GetPrincipal() ||
 | |
|            self->GetPrincipal()->Equals(other->GetPrincipal())) &&
 | |
|           IsLocalRef() == aOther.IsLocalRef();
 | |
| }
 | |
| 
 | |
| bool
 | |
| css::URLValueData::DefinitelyEqualURIs(const URLValueData& aOther) const
 | |
| {
 | |
|   if (mExtraData->BaseURI() != aOther.mExtraData->BaseURI()) {
 | |
|     return false;
 | |
|   }
 | |
|   if (mUsingRustString && aOther.mUsingRustString) {
 | |
|     return GetRustString() == aOther.GetRustString();
 | |
|   }
 | |
|   return GetUTF16StringForAnyThread() == aOther.GetUTF16StringForAnyThread();
 | |
| }
 | |
| 
 | |
| bool
 | |
| css::URLValueData::DefinitelyEqualURIsAndPrincipal(
 | |
|     const URLValueData& aOther) const
 | |
| {
 | |
|   return mExtraData->GetPrincipal() == aOther.mExtraData->GetPrincipal() &&
 | |
|          DefinitelyEqualURIs(aOther);
 | |
| }
 | |
| 
 | |
| nsDependentCSubstring
 | |
| css::URLValueData::GetRustString() const
 | |
| {
 | |
|   const uint8_t* chars;
 | |
|   uint32_t len;
 | |
|   Servo_GetArcStringData(mStrings.mRustString.mPtr, &chars, &len);
 | |
|   return nsDependentCSubstring(reinterpret_cast<const char*>(chars), len);
 | |
| }
 | |
| 
 | |
| bool
 | |
| css::URLValueData::IsStringEmpty() const
 | |
| {
 | |
|   if (mUsingRustString) {
 | |
|     return GetRustString().IsEmpty();
 | |
|   }
 | |
|   return mStrings.mString.IsEmpty();
 | |
| }
 | |
| 
 | |
| const nsString&
 | |
| css::URLValueData::GetUTF16String() const
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
| 
 | |
|   if (mUsingRustString) {
 | |
|     nsDependentCSubstring rust = GetRustString();
 | |
|     nsString converted = NS_ConvertUTF8toUTF16(rust);
 | |
|     Servo_ReleaseArcStringData(&mStrings.mRustString);
 | |
|     mStrings.mString = converted;
 | |
|     mUsingRustString = false;
 | |
|   }
 | |
|   return mStrings.mString;
 | |
| }
 | |
| 
 | |
| nsString
 | |
| css::URLValueData::GetUTF16StringForAnyThread() const
 | |
| {
 | |
|   if (!mUsingRustString) {
 | |
|     return mStrings.mString;
 | |
|   }
 | |
|   nsDependentCSubstring rust = GetRustString();
 | |
|   return NS_ConvertUTF8toUTF16(rust);
 | |
| }
 | |
| 
 | |
| nsIURI*
 | |
| css::URLValueData::GetURI() const
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
| 
 | |
|   if (!mURIResolved) {
 | |
|     MOZ_ASSERT(!mURI);
 | |
|     nsCOMPtr<nsIURI> newURI;
 | |
|     if (!mUsingRustString) {
 | |
|       NS_NewURI(getter_AddRefs(newURI),
 | |
|                 NS_ConvertUTF16toUTF8(mStrings.mString),
 | |
|                 nullptr, mExtraData->BaseURI());
 | |
|     } else {
 | |
|       NS_NewURI(getter_AddRefs(newURI),
 | |
|                 GetRustString(),
 | |
|                 nullptr, mExtraData->BaseURI());
 | |
|     }
 | |
|     mURI = new PtrHolder<nsIURI>("URLValueData::mURI", newURI.forget());
 | |
|     mURIResolved = true;
 | |
|   }
 | |
| 
 | |
|   return mURI;
 | |
| }
 | |
| 
 | |
| bool
 | |
| css::URLValueData::IsLocalRef() const
 | |
| {
 | |
|   if (mIsLocalRef.isNothing()) {
 | |
|     // IsLocalRefURL is O(N), use it only when IsLocalRef is called.
 | |
|     if (mUsingRustString) {
 | |
|       mIsLocalRef.emplace(nsContentUtils::IsLocalRefURL(GetRustString()));
 | |
|     } else {
 | |
|       mIsLocalRef.emplace(nsContentUtils::IsLocalRefURL(mStrings.mString));
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return mIsLocalRef.value();
 | |
| }
 | |
| 
 | |
| bool
 | |
| css::URLValueData::HasRef() const
 | |
| {
 | |
|   bool result = false;
 | |
| 
 | |
|   if (IsLocalRef()) {
 | |
|     result = true;
 | |
|   } else {
 | |
|     if (nsIURI* uri = GetURI()) {
 | |
|       nsAutoCString ref;
 | |
|       nsresult rv = uri->GetRef(ref);
 | |
|       if (NS_SUCCEEDED(rv) && !ref.IsEmpty()) {
 | |
|         result = true;
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   mMightHaveRef = Some(result);
 | |
| 
 | |
|   return result;
 | |
| }
 | |
| 
 | |
| bool
 | |
| css::URLValueData::MightHaveRef() const
 | |
| {
 | |
|   if (mMightHaveRef.isNothing()) {
 | |
|     bool result = mUsingRustString ?
 | |
|         ::MightHaveRef(GetRustString()) :
 | |
|         ::MightHaveRef(mStrings.mString);
 | |
|     if (!ServoStyleSet::IsInServoTraversal()) {
 | |
|       // Can only cache the result if we're not on a style worker thread.
 | |
|       mMightHaveRef.emplace(result);
 | |
|     }
 | |
|     return result;
 | |
|   }
 | |
| 
 | |
|   return mMightHaveRef.value();
 | |
| }
 | |
| 
 | |
| already_AddRefed<nsIURI>
 | |
| css::URLValueData::ResolveLocalRef(nsIURI* aURI) const
 | |
| {
 | |
|   nsCOMPtr<nsIURI> result = GetURI();
 | |
| 
 | |
|   if (result && IsLocalRef()) {
 | |
|     nsCString ref;
 | |
|     mURI->GetRef(ref);
 | |
| 
 | |
|     aURI->Clone(getter_AddRefs(result));
 | |
|     result->SetRef(ref);
 | |
|   }
 | |
| 
 | |
|   return result.forget();
 | |
| }
 | |
| 
 | |
| already_AddRefed<nsIURI>
 | |
| css::URLValueData::ResolveLocalRef(nsIContent* aContent) const
 | |
| {
 | |
|   nsCOMPtr<nsIURI> url = aContent->GetBaseURI();
 | |
|   return ResolveLocalRef(url);
 | |
| }
 | |
| 
 | |
| void
 | |
| css::URLValueData::GetSourceString(nsString& aRef) const
 | |
| {
 | |
|   nsIURI* uri = GetURI();
 | |
|   if (!uri) {
 | |
|     aRef.Truncate();
 | |
|     return;
 | |
|   }
 | |
| 
 | |
|   nsCString cref;
 | |
|   if (IsLocalRef()) {
 | |
|     // XXXheycam It's possible we can just return mString in this case, since
 | |
|     // it should be the "#fragment" string the URLValueData was created with.
 | |
|     uri->GetRef(cref);
 | |
|     cref.Insert('#', 0);
 | |
|   } else {
 | |
|     // It's not entirely clear how to best handle failure here. Ensuring the
 | |
|     // string is empty seems safest.
 | |
|     nsresult rv = uri->GetSpec(cref);
 | |
|     if (NS_FAILED(rv)) {
 | |
|       cref.Truncate();
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   aRef = NS_ConvertUTF8toUTF16(cref);
 | |
| }
 | |
| 
 | |
| bool
 | |
| css::URLValueData::EqualsExceptRef(nsIURI* aURI) const
 | |
| {
 | |
|   nsIURI* uri = GetURI();
 | |
|   if (!uri) {
 | |
|     return false;
 | |
|   }
 | |
| 
 | |
|   bool ret = false;
 | |
|   uri->EqualsExceptRef(aURI, &ret);
 | |
|   return ret;
 | |
| }
 | |
| 
 | |
| size_t
 | |
| css::URLValueData::SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   size_t n = 0;
 | |
|   if (!mUsingRustString) {
 | |
|     n += mStrings.mString.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
 | |
|   }
 | |
| 
 | |
|   // Measurement of the following members may be added later if DMD finds it
 | |
|   // is worthwhile:
 | |
|   // - mURI
 | |
|   // - mExtraData
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| URLValue::URLValue(const nsAString& aString, nsIURI* aBaseURI, nsIURI* aReferrer,
 | |
|                    nsIPrincipal* aOriginPrincipal)
 | |
|   : URLValueData(aString, do_AddRef(new URLExtraData(aBaseURI, aReferrer,
 | |
|                                                      aOriginPrincipal)))
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
| }
 | |
| 
 | |
| URLValue::URLValue(nsIURI* aURI, const nsAString& aString, nsIURI* aBaseURI,
 | |
|                    nsIURI* aReferrer, nsIPrincipal* aOriginPrincipal)
 | |
|   : URLValueData(do_AddRef(new PtrHolder<nsIURI>("URLValueData::mURI", aURI)),
 | |
|                  aString,
 | |
|                  do_AddRef(new URLExtraData(aBaseURI, aReferrer,
 | |
|                                             aOriginPrincipal)))
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
| }
 | |
| 
 | |
| size_t
 | |
| css::URLValue::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|     n += URLValueData::SizeOfExcludingThis(aMallocSizeOf);
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| css::ImageValue::ImageValue(nsIURI* aURI, const nsAString& aString,
 | |
|                             already_AddRefed<URLExtraData> aExtraData,
 | |
|                             nsIDocument* aDocument)
 | |
|   : URLValueData(do_AddRef(new PtrHolder<nsIURI>("URLValueData::mURI", aURI)),
 | |
|                  aString, Move(aExtraData))
 | |
| {
 | |
|   Initialize(aDocument);
 | |
| }
 | |
| 
 | |
| css::ImageValue::ImageValue(nsIURI* aURI, ServoRawOffsetArc<RustString> aString,
 | |
|                             already_AddRefed<URLExtraData> aExtraData,
 | |
|                             nsIDocument* aDocument)
 | |
|   : URLValueData(do_AddRef(new PtrHolder<nsIURI>("URLValueData::mURI", aURI)),
 | |
|                  aString, Move(aExtraData))
 | |
| {
 | |
|   Initialize(aDocument);
 | |
| }
 | |
| 
 | |
| css::ImageValue::ImageValue(const nsAString& aString,
 | |
|                             already_AddRefed<URLExtraData> aExtraData)
 | |
|   : URLValueData(aString, Move(aExtraData))
 | |
| {
 | |
| }
 | |
| 
 | |
| css::ImageValue::ImageValue(ServoRawOffsetArc<RustString> aString,
 | |
|                             already_AddRefed<URLExtraData> aExtraData)
 | |
|   : URLValueData(aString, Move(aExtraData))
 | |
| {
 | |
| }
 | |
| 
 | |
| /*static*/ css::ImageValue*
 | |
| css::ImageValue::CreateFromURLValue(URLValue* aUrl, nsIDocument* aDocument)
 | |
| {
 | |
|   if (aUrl->mUsingRustString) {
 | |
|     return new css::ImageValue(aUrl->GetURI(),
 | |
|                                Servo_CloneArcStringData(&aUrl->mStrings.mRustString),
 | |
|                                do_AddRef(aUrl->mExtraData), aDocument);
 | |
|   }
 | |
|   return new css::ImageValue(aUrl->GetURI(), aUrl->mStrings.mString,
 | |
|                              do_AddRef(aUrl->mExtraData), aDocument);
 | |
| }
 | |
| 
 | |
| void
 | |
| css::ImageValue::Initialize(nsIDocument* aDocument)
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread());
 | |
| 
 | |
|   // NB: If aDocument is not the original document, we may not be able to load
 | |
|   // images from aDocument.  Instead we do the image load from the original doc
 | |
|   // and clone it to aDocument.
 | |
|   nsIDocument* loadingDoc = aDocument->GetOriginalDocument();
 | |
|   if (!loadingDoc) {
 | |
|     loadingDoc = aDocument;
 | |
|   }
 | |
| 
 | |
|   if (!mLoadedImage) {
 | |
|     loadingDoc->StyleImageLoader()->LoadImage(GetURI(),
 | |
|                                               mExtraData->GetPrincipal(),
 | |
|                                               mExtraData->GetReferrer(), this);
 | |
| 
 | |
|      mLoadedImage = true;
 | |
|   }
 | |
| 
 | |
|   aDocument->StyleImageLoader()->MaybeRegisterCSSImage(this);
 | |
| }
 | |
| 
 | |
| css::ImageValue::~ImageValue()
 | |
| {
 | |
|   MOZ_ASSERT(NS_IsMainThread() || mRequests.Count() == 0,
 | |
|              "Destructor should run on main thread, or on non-main thread "
 | |
|              "when mRequest is empty!");
 | |
| 
 | |
|   for (auto iter = mRequests.Iter(); !iter.Done(); iter.Next()) {
 | |
|     nsIDocument* doc = iter.Key();
 | |
|     RefPtr<imgRequestProxy>& proxy = iter.Data();
 | |
| 
 | |
|     if (doc) {
 | |
|       doc->StyleImageLoader()->DeregisterCSSImage(this);
 | |
|     }
 | |
| 
 | |
|     if (proxy) {
 | |
|       proxy->CancelAndForgetObserver(NS_BINDING_ABORTED);
 | |
|     }
 | |
| 
 | |
|     iter.Remove();
 | |
|   }
 | |
| }
 | |
| 
 | |
| size_t
 | |
| css::ImageValue::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   size_t n = aMallocSizeOf(this);
 | |
|   n += css::URLValueData::SizeOfExcludingThis(aMallocSizeOf);
 | |
|   n += mRequests.ShallowSizeOfExcludingThis(aMallocSizeOf);
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| size_t
 | |
| css::ComplexColorValue::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| nsCSSValueGradientStop::nsCSSValueGradientStop()
 | |
|   : mLocation(eCSSUnit_None),
 | |
|     mColor(eCSSUnit_Null),
 | |
|     mIsInterpolationHint(false)
 | |
| {
 | |
|   MOZ_COUNT_CTOR(nsCSSValueGradientStop);
 | |
| }
 | |
| 
 | |
| nsCSSValueGradientStop::nsCSSValueGradientStop(const nsCSSValueGradientStop& aOther)
 | |
|   : mLocation(aOther.mLocation),
 | |
|     mColor(aOther.mColor),
 | |
|     mIsInterpolationHint(aOther.mIsInterpolationHint)
 | |
| {
 | |
|   MOZ_COUNT_CTOR(nsCSSValueGradientStop);
 | |
| }
 | |
| 
 | |
| nsCSSValueGradientStop::~nsCSSValueGradientStop()
 | |
| {
 | |
|   MOZ_COUNT_DTOR(nsCSSValueGradientStop);
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValueGradientStop::SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   size_t n = 0;
 | |
|   n += mLocation.SizeOfExcludingThis(aMallocSizeOf);
 | |
|   n += mColor   .SizeOfExcludingThis(aMallocSizeOf);
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| nsCSSValueGradient::nsCSSValueGradient(bool aIsRadial,
 | |
|                                        bool aIsRepeating)
 | |
|   : mIsRadial(aIsRadial),
 | |
|     mIsRepeating(aIsRepeating),
 | |
|     mIsLegacySyntax(false),
 | |
|     mIsMozLegacySyntax(false),
 | |
|     mIsExplicitSize(false),
 | |
|     mBgPos(eCSSUnit_None),
 | |
|     mAngle(eCSSUnit_None)
 | |
| {
 | |
|   mRadialValues[0].SetNoneValue();
 | |
|   mRadialValues[1].SetNoneValue();
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValueGradient::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|     n += mBgPos.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mAngle.SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mRadialValues[0].SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mRadialValues[1].SizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mStops.ShallowSizeOfExcludingThis(aMallocSizeOf);
 | |
|     for (uint32_t i = 0; i < mStops.Length(); i++) {
 | |
|       n += mStops[i].SizeOfExcludingThis(aMallocSizeOf);
 | |
|     }
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| // --- nsCSSValueTokenStream ------------
 | |
| 
 | |
| nsCSSValueTokenStream::nsCSSValueTokenStream()
 | |
|   : mPropertyID(eCSSProperty_UNKNOWN)
 | |
|   , mShorthandPropertyID(eCSSProperty_UNKNOWN)
 | |
|   , mLevel(SheetType::Count)
 | |
| {}
 | |
| 
 | |
| nsCSSValueTokenStream::~nsCSSValueTokenStream()
 | |
| {}
 | |
| 
 | |
| size_t
 | |
| nsCSSValueTokenStream::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|     n += mTokenStream.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| // --- nsCSSValueFloatColor -------------
 | |
| 
 | |
| bool
 | |
| nsCSSValueFloatColor::operator==(nsCSSValueFloatColor& aOther) const
 | |
| {
 | |
|   return mComponent1 == aOther.mComponent1 &&
 | |
|          mComponent2 == aOther.mComponent2 &&
 | |
|          mComponent3 == aOther.mComponent3 &&
 | |
|          mAlpha == aOther.mAlpha;
 | |
| }
 | |
| 
 | |
| nscolor
 | |
| nsCSSValueFloatColor::GetColorValue(nsCSSUnit aUnit) const
 | |
| {
 | |
|   MOZ_ASSERT(nsCSSValue::IsFloatColorUnit(aUnit), "unexpected unit");
 | |
| 
 | |
|   // We should clamp each component value since eCSSUnit_PercentageRGBColor
 | |
|   // and eCSSUnit_PercentageRGBAColor may store values greater than 1.0.
 | |
|   if (aUnit == eCSSUnit_PercentageRGBColor ||
 | |
|       aUnit == eCSSUnit_PercentageRGBAColor) {
 | |
|     return NS_RGBA(
 | |
|       // We need to clamp before multiplying by 255.0f to avoid overflow.
 | |
|       NSToIntRound(mozilla::clamped(mComponent1, 0.0f, 1.0f) * 255.0f),
 | |
|       NSToIntRound(mozilla::clamped(mComponent2, 0.0f, 1.0f) * 255.0f),
 | |
|       NSToIntRound(mozilla::clamped(mComponent3, 0.0f, 1.0f) * 255.0f),
 | |
|       NSToIntRound(mozilla::clamped(mAlpha, 0.0f, 1.0f) * 255.0f));
 | |
|   }
 | |
| 
 | |
|   // HSL color
 | |
|   MOZ_ASSERT(aUnit == eCSSUnit_HSLColor ||
 | |
|              aUnit == eCSSUnit_HSLAColor);
 | |
|   nscolor hsl = NS_HSL2RGB(mComponent1, mComponent2, mComponent3);
 | |
|   return NS_RGBA(NS_GET_R(hsl),
 | |
|                  NS_GET_G(hsl),
 | |
|                  NS_GET_B(hsl),
 | |
|                  NSToIntRound(mAlpha * 255.0f));
 | |
| }
 | |
| 
 | |
| bool
 | |
| nsCSSValueFloatColor::IsNonTransparentColor() const
 | |
| {
 | |
|   return mAlpha > 0.0f;
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSValueFloatColor::AppendToString(nsCSSUnit aUnit, nsAString& aResult) const
 | |
| {
 | |
|   // Similar to the rgb()/rgba() case in nsCSSValue::AppendToString. We omit the
 | |
|   // alpha component if it's equal to 1.0f (full opaque). Also, we try to
 | |
|   // preserve the author-specified function name, unless it's rgba()/hsla() and
 | |
|   // we're omitting the alpha component - then we use rgb()/hsl().
 | |
|   MOZ_ASSERT(nsCSSValue::IsFloatColorUnit(aUnit), "unexpected unit");
 | |
| 
 | |
|   bool showAlpha = (mAlpha != 1.0f);
 | |
|   bool isHSL = (aUnit == eCSSUnit_HSLColor ||
 | |
|                 aUnit == eCSSUnit_HSLAColor);
 | |
| 
 | |
|   if (isHSL) {
 | |
|     aResult.AppendLiteral("hsl");
 | |
|   } else {
 | |
|     aResult.AppendLiteral("rgb");
 | |
|   }
 | |
|   if (showAlpha && (aUnit == eCSSUnit_HSLAColor || aUnit == eCSSUnit_PercentageRGBAColor)) {
 | |
|     aResult.AppendLiteral("a(");
 | |
|   } else {
 | |
|     aResult.Append('(');
 | |
|   }
 | |
|   if (isHSL) {
 | |
|     aResult.AppendFloat(mComponent1 * 360.0f);
 | |
|     aResult.AppendLiteral(", ");
 | |
|   } else {
 | |
|     aResult.AppendFloat(mComponent1 * 100.0f);
 | |
|     aResult.AppendLiteral("%, ");
 | |
|   }
 | |
|   aResult.AppendFloat(mComponent2 * 100.0f);
 | |
|   aResult.AppendLiteral("%, ");
 | |
|   aResult.AppendFloat(mComponent3 * 100.0f);
 | |
|   if (showAlpha) {
 | |
|     aResult.AppendLiteral("%, ");
 | |
|     aResult.AppendFloat(mAlpha);
 | |
|     aResult.Append(')');
 | |
|   } else {
 | |
|     aResult.AppendLiteral("%)");
 | |
|   }
 | |
| }
 | |
| 
 | |
| size_t
 | |
| nsCSSValueFloatColor::SizeOfIncludingThis(
 | |
|                                       mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|   }
 | |
|   return n;
 | |
| }
 | |
| 
 | |
| // --- nsCSSCornerSizes -----------------
 | |
| 
 | |
| nsCSSCornerSizes::nsCSSCornerSizes(void)
 | |
| {
 | |
|   MOZ_COUNT_CTOR(nsCSSCornerSizes);
 | |
| }
 | |
| 
 | |
| nsCSSCornerSizes::nsCSSCornerSizes(const nsCSSCornerSizes& aCopy)
 | |
|   : mTopLeft(aCopy.mTopLeft),
 | |
|     mTopRight(aCopy.mTopRight),
 | |
|     mBottomRight(aCopy.mBottomRight),
 | |
|     mBottomLeft(aCopy.mBottomLeft)
 | |
| {
 | |
|   MOZ_COUNT_CTOR(nsCSSCornerSizes);
 | |
| }
 | |
| 
 | |
| nsCSSCornerSizes::~nsCSSCornerSizes()
 | |
| {
 | |
|   MOZ_COUNT_DTOR(nsCSSCornerSizes);
 | |
| }
 | |
| 
 | |
| void
 | |
| nsCSSCornerSizes::Reset()
 | |
| {
 | |
|   NS_FOR_CSS_FULL_CORNERS(corner) {
 | |
|     this->GetCorner(corner).Reset();
 | |
|   }
 | |
| }
 | |
| 
 | |
| static_assert(eCornerTopLeft == 0 && eCornerTopRight == 1 &&
 | |
|               eCornerBottomRight == 2 && eCornerBottomLeft == 3,
 | |
|               "box corner constants not tl/tr/br/bl == 0/1/2/3");
 | |
| 
 | |
| /* static */ const nsCSSCornerSizes::corner_type
 | |
| nsCSSCornerSizes::corners[4] = {
 | |
|   &nsCSSCornerSizes::mTopLeft,
 | |
|   &nsCSSCornerSizes::mTopRight,
 | |
|   &nsCSSCornerSizes::mBottomRight,
 | |
|   &nsCSSCornerSizes::mBottomLeft,
 | |
| };
 | |
| 
 | |
| size_t
 | |
| mozilla::css::GridTemplateAreasValue::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
 | |
| {
 | |
|   // Only measure it if it's unshared, to avoid double-counting.
 | |
|   size_t n = 0;
 | |
|   if (mRefCnt <= 1) {
 | |
|     n += aMallocSizeOf(this);
 | |
|     n += mNamedAreas.ShallowSizeOfExcludingThis(aMallocSizeOf);
 | |
|     n += mTemplates.ShallowSizeOfExcludingThis(aMallocSizeOf);
 | |
|   }
 | |
|   return n;
 | |
| }
 | 
