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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /layout/style/nsCSSValue.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'layout/style/nsCSSValue.cpp')
-rw-r--r--layout/style/nsCSSValue.cpp3237
1 files changed, 3237 insertions, 0 deletions
diff --git a/layout/style/nsCSSValue.cpp b/layout/style/nsCSSValue.cpp
new file mode 100644
index 000000000..baf5b7897
--- /dev/null
+++ b/layout/style/nsCSSValue.cpp
@@ -0,0 +1,3237 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* representation of simple property values within CSS declarations */
+
+#include "nsCSSValue.h"
+
+#include "mozilla/StyleSheetInlines.h"
+#include "mozilla/Likely.h"
+#include "mozilla/MemoryReporting.h"
+#include "mozilla/Move.h"
+#include "mozilla/css/ImageLoader.h"
+#include "CSSCalc.h"
+#include "gfxFontConstants.h"
+#include "imgIRequest.h"
+#include "imgRequestProxy.h"
+#include "nsIDocument.h"
+#include "nsIPrincipal.h"
+#include "nsCSSProps.h"
+#include "nsNetUtil.h"
+#include "nsPresContext.h"
+#include "nsStyleUtil.h"
+#include "nsDeviceContext.h"
+#include "nsStyleSet.h"
+#include "nsContentUtils.h"
+
+using namespace mozilla;
+
+static bool
+IsLocalRefURL(nsStringBuffer* aString)
+{
+ // Find the first non-"C0 controls + space" character.
+ char16_t* current = static_cast<char16_t*>(aString->Data());
+ for (; *current != '\0'; current++) {
+ if (*current > 0x20) {
+ // if the first non-"C0 controls + space" character is '#', this is a
+ // local-ref URL.
+ return *current == '#';
+ }
+ }
+
+ return false;
+}
+
+nsCSSValue::nsCSSValue(int32_t aValue, nsCSSUnit aUnit)
+ : mUnit(aUnit)
+{
+ MOZ_ASSERT(aUnit == eCSSUnit_Integer || aUnit == eCSSUnit_Enumerated ||
+ aUnit == eCSSUnit_EnumColor,
+ "not an int value");
+ if (aUnit == eCSSUnit_Integer || aUnit == eCSSUnit_Enumerated ||
+ aUnit == eCSSUnit_EnumColor) {
+ mValue.mInt = aValue;
+ }
+ else {
+ mUnit = eCSSUnit_Null;
+ mValue.mInt = 0;
+ }
+}
+
+nsCSSValue::nsCSSValue(float aValue, nsCSSUnit aUnit)
+ : mUnit(aUnit)
+{
+ MOZ_ASSERT(eCSSUnit_Percent <= aUnit, "not a float value");
+ if (eCSSUnit_Percent <= aUnit) {
+ mValue.mFloat = aValue;
+ MOZ_ASSERT(!mozilla::IsNaN(mValue.mFloat));
+ }
+ else {
+ mUnit = eCSSUnit_Null;
+ mValue.mInt = 0;
+ }
+}
+
+nsCSSValue::nsCSSValue(const nsString& aValue, nsCSSUnit aUnit)
+ : mUnit(aUnit)
+{
+ MOZ_ASSERT(UnitHasStringValue(), "not a string value");
+ if (UnitHasStringValue()) {
+ mValue.mString = BufferFromString(aValue).take();
+ }
+ else {
+ mUnit = eCSSUnit_Null;
+ mValue.mInt = 0;
+ }
+}
+
+nsCSSValue::nsCSSValue(nsCSSValue::Array* aValue, nsCSSUnit aUnit)
+ : mUnit(aUnit)
+{
+ MOZ_ASSERT(UnitHasArrayValue(), "bad unit");
+ mValue.mArray = aValue;
+ mValue.mArray->AddRef();
+}
+
+nsCSSValue::nsCSSValue(mozilla::css::URLValue* aValue)
+ : mUnit(eCSSUnit_URL)
+{
+ mValue.mURL = aValue;
+ mValue.mURL->AddRef();
+}
+
+nsCSSValue::nsCSSValue(mozilla::css::ImageValue* aValue)
+ : mUnit(eCSSUnit_Image)
+{
+ mValue.mImage = aValue;
+ mValue.mImage->AddRef();
+}
+
+nsCSSValue::nsCSSValue(nsCSSValueGradient* aValue)
+ : mUnit(eCSSUnit_Gradient)
+{
+ mValue.mGradient = aValue;
+ mValue.mGradient->AddRef();
+}
+
+nsCSSValue::nsCSSValue(nsCSSValueTokenStream* aValue)
+ : mUnit(eCSSUnit_TokenStream)
+{
+ mValue.mTokenStream = aValue;
+ mValue.mTokenStream->AddRef();
+}
+
+nsCSSValue::nsCSSValue(mozilla::css::GridTemplateAreasValue* aValue)
+ : mUnit(eCSSUnit_GridTemplateAreas)
+{
+ mValue.mGridTemplateAreas = aValue;
+ mValue.mGridTemplateAreas->AddRef();
+}
+
+nsCSSValue::nsCSSValue(css::FontFamilyListRefCnt* aValue)
+ : mUnit(eCSSUnit_FontFamilyList)
+{
+ mValue.mFontFamilyList = aValue;
+ mValue.mFontFamilyList->AddRef();
+}
+
+nsCSSValue::nsCSSValue(const nsCSSValue& aCopy)
+ : mUnit(aCopy.mUnit)
+{
+ if (mUnit <= eCSSUnit_DummyInherit) {
+ // nothing to do, but put this important case first
+ }
+ else if (eCSSUnit_Percent <= mUnit) {
+ mValue.mFloat = aCopy.mValue.mFloat;
+ MOZ_ASSERT(!mozilla::IsNaN(mValue.mFloat));
+ }
+ else if (UnitHasStringValue()) {
+ mValue.mString = aCopy.mValue.mString;
+ mValue.mString->AddRef();
+ }
+ else if (eCSSUnit_Integer <= mUnit && mUnit <= eCSSUnit_EnumColor) {
+ mValue.mInt = aCopy.mValue.mInt;
+ }
+ else if (IsIntegerColorUnit()) {
+ mValue.mColor = aCopy.mValue.mColor;
+ }
+ else if (IsFloatColorUnit()) {
+ mValue.mFloatColor = aCopy.mValue.mFloatColor;
+ mValue.mFloatColor->AddRef();
+ }
+ else if (eCSSUnit_ComplexColor == mUnit) {
+ mValue.mComplexColor = aCopy.mValue.mComplexColor;
+ mValue.mComplexColor->AddRef();
+ }
+ else if (UnitHasArrayValue()) {
+ mValue.mArray = aCopy.mValue.mArray;
+ mValue.mArray->AddRef();
+ }
+ else if (eCSSUnit_URL == mUnit) {
+ mValue.mURL = aCopy.mValue.mURL;
+ mValue.mURL->AddRef();
+ }
+ else if (eCSSUnit_Image == mUnit) {
+ mValue.mImage = aCopy.mValue.mImage;
+ mValue.mImage->AddRef();
+ }
+ else if (eCSSUnit_Gradient == mUnit) {
+ mValue.mGradient = aCopy.mValue.mGradient;
+ mValue.mGradient->AddRef();
+ }
+ else if (eCSSUnit_TokenStream == mUnit) {
+ mValue.mTokenStream = aCopy.mValue.mTokenStream;
+ mValue.mTokenStream->AddRef();
+ }
+ else if (eCSSUnit_Pair == mUnit) {
+ mValue.mPair = aCopy.mValue.mPair;
+ mValue.mPair->AddRef();
+ }
+ else if (eCSSUnit_Triplet == mUnit) {
+ mValue.mTriplet = aCopy.mValue.mTriplet;
+ mValue.mTriplet->AddRef();
+ }
+ else if (eCSSUnit_Rect == mUnit) {
+ mValue.mRect = aCopy.mValue.mRect;
+ mValue.mRect->AddRef();
+ }
+ else if (eCSSUnit_List == mUnit) {
+ mValue.mList = aCopy.mValue.mList;
+ mValue.mList->AddRef();
+ }
+ else if (eCSSUnit_ListDep == mUnit) {
+ mValue.mListDependent = aCopy.mValue.mListDependent;
+ }
+ else if (eCSSUnit_SharedList == mUnit) {
+ mValue.mSharedList = aCopy.mValue.mSharedList;
+ mValue.mSharedList->AddRef();
+ }
+ else if (eCSSUnit_PairList == mUnit) {
+ mValue.mPairList = aCopy.mValue.mPairList;
+ mValue.mPairList->AddRef();
+ }
+ else if (eCSSUnit_PairListDep == mUnit) {
+ mValue.mPairListDependent = aCopy.mValue.mPairListDependent;
+ }
+ else if (eCSSUnit_GridTemplateAreas == mUnit) {
+ mValue.mGridTemplateAreas = aCopy.mValue.mGridTemplateAreas;
+ mValue.mGridTemplateAreas->AddRef();
+ }
+ else if (eCSSUnit_FontFamilyList == mUnit) {
+ mValue.mFontFamilyList = aCopy.mValue.mFontFamilyList;
+ mValue.mFontFamilyList->AddRef();
+ }
+ else {
+ MOZ_ASSERT(false, "unknown unit");
+ }
+}
+
+nsCSSValue& nsCSSValue::operator=(const nsCSSValue& aCopy)
+{
+ if (this != &aCopy) {
+ Reset();
+ new (this) nsCSSValue(aCopy);
+ }
+ return *this;
+}
+
+nsCSSValue&
+nsCSSValue::operator=(nsCSSValue&& aOther)
+{
+ MOZ_ASSERT(this != &aOther, "Self assigment with rvalue reference");
+
+ Reset();
+ mUnit = aOther.mUnit;
+ mValue = aOther.mValue;
+ aOther.mUnit = eCSSUnit_Null;
+
+ return *this;
+}
+
+bool nsCSSValue::operator==(const nsCSSValue& aOther) const
+{
+ MOZ_ASSERT(mUnit != eCSSUnit_ListDep &&
+ aOther.mUnit != eCSSUnit_ListDep &&
+ mUnit != eCSSUnit_PairListDep &&
+ aOther.mUnit != eCSSUnit_PairListDep,
+ "don't use operator== with dependent lists");
+
+ if (mUnit == aOther.mUnit) {
+ if (mUnit <= eCSSUnit_DummyInherit) {
+ return true;
+ }
+ else if (UnitHasStringValue()) {
+ return (NS_strcmp(GetBufferValue(mValue.mString),
+ 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 == *aOther.mValue.mFontFamilyList;
+ }
+ 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(req);
+}
+
+nscoord nsCSSValue::GetFixedLength(nsPresContext* aPresContext) const
+{
+ MOZ_ASSERT(mUnit == eCSSUnit_PhysicalMillimeter,
+ "not a fixed length unit");
+
+ float inches = mValue.mFloat / MM_PER_INCH_FLOAT;
+ return NSToCoordFloorClamped(inches *
+ float(aPresContext->DeviceContext()->AppUnitsPerPhysicalInch()));
+}
+
+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));
+}
+
+void nsCSSValue::DoReset()
+{
+ if (UnitHasStringValue()) {
+ mValue.mString->Release();
+ } else if (IsFloatColorUnit()) {
+ mValue.mFloatColor->Release();
+ } else if (eCSSUnit_ComplexColor == mUnit) {
+ mValue.mComplexColor->Release();
+ } else if (UnitHasArrayValue()) {
+ mValue.mArray->Release();
+ } else if (eCSSUnit_URL == mUnit) {
+ mValue.mURL->Release();
+ } else if (eCSSUnit_Image == mUnit) {
+ mValue.mImage->Release();
+ } else if (eCSSUnit_Gradient == mUnit) {
+ mValue.mGradient->Release();
+ } else if (eCSSUnit_TokenStream == mUnit) {
+ mValue.mTokenStream->Release();
+ } else if (eCSSUnit_Pair == mUnit) {
+ mValue.mPair->Release();
+ } else if (eCSSUnit_Triplet == mUnit) {
+ mValue.mTriplet->Release();
+ } else if (eCSSUnit_Rect == mUnit) {
+ mValue.mRect->Release();
+ } else if (eCSSUnit_List == mUnit) {
+ mValue.mList->Release();
+ } else if (eCSSUnit_SharedList == mUnit) {
+ mValue.mSharedList->Release();
+ } else if (eCSSUnit_PairList == mUnit) {
+ mValue.mPairList->Release();
+ } else if (eCSSUnit_GridTemplateAreas == mUnit) {
+ mValue.mGridTemplateAreas->Release();
+ } else if (eCSSUnit_FontFamilyList == mUnit) {
+ mValue.mFontFamilyList->Release();
+ }
+ mUnit = eCSSUnit_Null;
+}
+
+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::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(css::FontFamilyListRefCnt* aValue)
+{
+ Reset();
+ mUnit = eCSSUnit_FontFamilyList;
+ mValue.mFontFamilyList = aValue;
+ mValue.mFontFamilyList->AddRef();
+}
+
+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);
+}
+
+void nsCSSValue::StartImageLoad(nsIDocument* aDocument) const
+{
+ MOZ_ASSERT(eCSSUnit_URL == mUnit, "Not a URL value!");
+ mozilla::css::ImageValue* image =
+ new mozilla::css::ImageValue(mValue.mURL->GetURI(),
+ mValue.mURL->mString,
+ mValue.mURL->mBaseURI,
+ mValue.mURL->mReferrer,
+ mValue.mURL->mOriginPrincipal,
+ 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();
+}
+
+namespace {
+
+struct CSSValueSerializeCalcOps {
+ CSSValueSerializeCalcOps(nsCSSPropertyID aProperty, nsAString& aResult,
+ nsCSSValue::Serialization aSerialization)
+ : mProperty(aProperty),
+ mResult(aResult),
+ mValueSerialization(aSerialization)
+ {
+ }
+
+ 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, mValueSerialization);
+ }
+
+ void AppendNumber(const input_type& aValue)
+ {
+ MOZ_ASSERT(aValue.GetUnit() == eCSSUnit_Number, "unexpected unit");
+ aValue.AppendToString(mProperty, mResult, mValueSerialization);
+ }
+
+private:
+ nsCSSPropertyID mProperty;
+ nsAString &mResult;
+ nsCSSValue::Serialization mValueSerialization;
+};
+
+} // namespace
+
+void
+nsCSSValue::AppendPolygonToString(nsCSSPropertyID aProperty, nsAString& aResult,
+ Serialization aSerialization) 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, aSerialization);
+}
+
+inline void
+nsCSSValue::AppendPositionCoordinateToString(
+ const nsCSSValue& aValue, nsCSSPropertyID aProperty,
+ nsAString& aResult, Serialization aSerialization) const
+{
+ if (aValue.GetUnit() == eCSSUnit_Enumerated) {
+ int32_t intValue = aValue.GetIntValue();
+ AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
+ nsCSSProps::kShapeRadiusKTable), aResult);
+ } else {
+ aValue.AppendToString(aProperty, aResult, aSerialization);
+ }
+}
+
+void
+nsCSSValue::AppendCircleOrEllipseToString(nsCSSKeyword aFunctionId,
+ nsCSSPropertyID aProperty,
+ nsAString& aResult,
+ Serialization aSerialization) 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 &&
+ array->Item(1).GetIntValue() == NS_RADIUS_CLOSEST_SIDE &&
+ (aFunctionId == eCSSKeyword_circle ||
+ (array->Item(2).GetUnit() == eCSSUnit_Enumerated &&
+ array->Item(2).GetIntValue() == NS_RADIUS_CLOSEST_SIDE))) {
+ hasRadii = false;
+ } else {
+ AppendPositionCoordinateToString(array->Item(1), aProperty,
+ aResult, aSerialization);
+
+ if (hasRadii && aFunctionId == eCSSKeyword_ellipse) {
+ aResult.Append(' ');
+ AppendPositionCoordinateToString(array->Item(2), aProperty,
+ aResult, aSerialization);
+ }
+ }
+
+ 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, aSerialization);
+}
+
+// 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,
+ Serialization aSerialization) 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, aSerialization);
+ aResult.Append(' ');
+ yOffset.AppendToString(eCSSProperty_UNKNOWN, aResult, aSerialization);
+ } else {
+ // We only serialize to the two or four valued form
+ xEdge.AppendToString(eCSSProperty_object_position, aResult, aSerialization);
+ aResult.Append(' ');
+ xOffset.AppendToString(eCSSProperty_UNKNOWN, aResult, aSerialization);
+ aResult.Append(' ');
+ yEdge.AppendToString(eCSSProperty_object_position, aResult, aSerialization);
+ aResult.Append(' ');
+ yOffset.AppendToString(eCSSProperty_UNKNOWN, aResult, aSerialization);
+ }
+}
+
+// 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,
+ nsCSSValue::Serialization
+ aSerialization)
+{
+ 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, aSerialization);
+ 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, aSerialization);
+ if (value1 != value3 || value2 != value4) {
+ aString.Append(char16_t(' '));
+ MOZ_ASSERT(value3.GetUnit() != eCSSUnit_Null, "null value 3");
+ value3.AppendToString(aProperties[2], aString, aSerialization);
+ if (value2 != value4) {
+ aString.Append(char16_t(' '));
+ MOZ_ASSERT(value4.GetUnit() != eCSSUnit_Null, "null value 4");
+ value4.AppendToString(aProperties[3], aString, aSerialization);
+ }
+ }
+ }
+}
+
+/*static*/ void
+nsCSSValue::AppendBasicShapeRadiusToString(const nsCSSPropertyID aProperties[],
+ const nsCSSValue* aValues[],
+ nsAString& aResult,
+ Serialization aSerialization)
+{
+ 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, aSerialization);
+ if (needY) {
+ aResult.AppendLiteral(" / ");
+ AppendSidesShorthandToString(aProperties, yVals, aResult, aSerialization);
+ }
+}
+
+void
+nsCSSValue::AppendInsetToString(nsCSSPropertyID aProperty, nsAString& aResult,
+ Serialization aSerialization) 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, aSerialization);
+ if (array->Item(2).GetUnit() != eCSSUnit_Null) {
+ aResult.Append(' ');
+ array->Item(2).AppendToString(aProperty, aResult, aSerialization);
+ if (array->Item(3).GetUnit() != eCSSUnit_Null) {
+ aResult.Append(' ');
+ array->Item(3).AppendToString(aProperty, aResult, aSerialization);
+ if (array->Item(4).GetUnit() != eCSSUnit_Null) {
+ aResult.Append(' ');
+ array->Item(4).AppendToString(aProperty, aResult, aSerialization);
+ }
+ }
+ }
+ }
+
+ 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,
+ aSerialization);
+ } 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);
+ }
+}
+
+void
+nsCSSValue::AppendToString(nsCSSPropertyID aProperty, nsAString& aResult,
+ Serialization aSerialization) 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();
+ 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, aSerialization);
+ 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, aSerialization);
+ 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, aSerialization);
+ break;
+
+ case eCSSKeyword_circle:
+ case eCSSKeyword_ellipse:
+ AppendCircleOrEllipseToString(functionId, aProperty, aResult,
+ aSerialization);
+ break;
+
+ case eCSSKeyword_inset:
+ AppendInsetToString(aProperty, aResult, aSerialization);
+ 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,
+ aSerialization);
+
+ /* 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, aSerialization);
+ 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_PREF_ANCHORS,
+ 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 nsAFlatCString& 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)) {
+ if (aSerialization == eNormalized ||
+ unit == eCSSUnit_RGBColor ||
+ unit == eCSSUnit_RGBAColor) {
+ nscolor color = GetColorValue();
+ if (aSerialization == eNormalized &&
+ color == NS_RGBA(0, 0, 0, 0)) {
+ // Use the strictest match for 'transparent' so we do correct
+ // round-tripping of all other rgba() values.
+ aResult.AppendLiteral("transparent");
+ } else {
+ // 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_HexColor == unit ||
+ eCSSUnit_HexColorAlpha == unit) {
+ nscolor color = GetColorValue();
+ aResult.Append('#');
+ aResult.AppendPrintf("%02x", NS_GET_R(color));
+ aResult.AppendPrintf("%02x", NS_GET_G(color));
+ aResult.AppendPrintf("%02x", NS_GET_B(color));
+ if (eCSSUnit_HexColorAlpha == unit) {
+ aResult.AppendPrintf("%02x", NS_GET_A(color));
+ }
+ } else if (eCSSUnit_ShortHexColor == unit ||
+ eCSSUnit_ShortHexColorAlpha == unit) {
+ nscolor color = GetColorValue();
+ aResult.Append('#');
+ aResult.AppendInt(NS_GET_R(color) / 0x11, 16);
+ aResult.AppendInt(NS_GET_G(color) / 0x11, 16);
+ aResult.AppendInt(NS_GET_B(color) / 0x11, 16);
+ if (eCSSUnit_ShortHexColorAlpha == unit) {
+ aResult.AppendInt(NS_GET_A(color) / 0x11, 16);
+ }
+ } else {
+ MOZ_ASSERT(IsFloatColorUnit());
+ mValue.mFloatColor->AppendToString(unit, aResult);
+ }
+ }
+ 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, aSerialization);
+ }
+ 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) {
+ aResult.AppendLiteral("-moz-");
+ }
+ 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,
+ aSerialization);
+ if (gradient->GetRadiusY().GetUnit() != eCSSUnit_None) {
+ aResult.Append(' ');
+ gradient->GetRadiusY().AppendToString(aProperty, aResult,
+ aSerialization);
+ }
+ needSep = true;
+ }
+ }
+ if (!gradient->mIsRadial && !gradient->mIsLegacySyntax) {
+ 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");
+ aResult.AppendLiteral("to");
+ if (!(gradient->mBgPos.mXValue.GetIntValue() & NS_STYLE_IMAGELAYER_POSITION_CENTER)) {
+ aResult.Append(' ');
+ gradient->mBgPos.mXValue.AppendToString(eCSSProperty_background_position_x,
+ aResult, aSerialization);
+ }
+ if (!(gradient->mBgPos.mYValue.GetIntValue() & NS_STYLE_IMAGELAYER_POSITION_CENTER)) {
+ aResult.Append(' ');
+ gradient->mBgPos.mYValue.AppendToString(eCSSProperty_background_position_y,
+ aResult, aSerialization);
+ }
+ needSep = true;
+ } else if (gradient->mAngle.GetUnit() != eCSSUnit_None) {
+ gradient->mAngle.AppendToString(aProperty, aResult, aSerialization);
+ 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, aSerialization);
+ aResult.Append(' ');
+ }
+ if (gradient->mBgPos.mYValue.GetUnit() != eCSSUnit_None) {
+ gradient->mBgPos.mYValue.AppendToString(eCSSProperty_background_position_y,
+ aResult, aSerialization);
+ aResult.Append(' ');
+ }
+ if (gradient->mAngle.GetUnit() != eCSSUnit_None) {
+ MOZ_ASSERT(gradient->mIsLegacySyntax,
+ "angle is allowed only for legacy syntax");
+ gradient->mAngle.AppendToString(aProperty, aResult, aSerialization);
+ }
+ 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,
+ aSerialization);
+ }
+ if (gradient->mStops[i].mLocation.GetUnit() != eCSSUnit_None) {
+ if (!isInterpolationHint) {
+ aResult.Append(' ');
+ }
+ gradient->mStops[i].mLocation.AppendToString(aProperty, aResult,
+ aSerialization);
+ }
+ 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, aSerialization);
+ }
+ } else if (eCSSUnit_Triplet == unit) {
+ GetTripletValue().AppendToString(aProperty, aResult, aSerialization);
+ } else if (eCSSUnit_Rect == unit) {
+ GetRectValue().AppendToString(aProperty, aResult, aSerialization);
+ } else if (eCSSUnit_List == unit || eCSSUnit_ListDep == unit) {
+ GetListValue()->AppendToString(aProperty, aResult, aSerialization);
+ } else if (eCSSUnit_SharedList == unit) {
+ GetSharedListValue()->AppendToString(aProperty, aResult, aSerialization);
+ } 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, aSerialization);
+ 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);
+ }
+
+ 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_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_PhysicalMillimeter: aResult.AppendLiteral("mozmm"); 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:
+ // Not yet measured. Measurement may be added later if DMD finds it
+ // worthwhile.
+ 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:
+ n += mValue.mFontFamilyList->SizeOfIncludingThis(aMallocSizeOf);
+ 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_PhysicalMillimeter:
+ 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,
+ nsCSSValue::Serialization aSerialization)
+{
+ for (;;) {
+ val->mValue.AppendToString(aProperty, aResult, aSerialization);
+ 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,
+ nsCSSValue::Serialization aSerialization)
+{
+ // 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, aSerialization);
+ aResult.Append(']');
+ if (!isSubgrid) {
+ aResult.Append(' ');
+ }
+ } else if (isSubgrid) {
+ aResult.AppendLiteral("[]");
+ }
+ if (!isSubgrid) {
+ repeatList = repeatList->mNext;
+ repeatList->mValue.AppendToString(aProperty, aResult, aSerialization);
+ repeatList = repeatList->mNext;
+ if (repeatList->mValue.GetUnit() != eCSSUnit_Null) {
+ aResult.AppendLiteral(" [");
+ AppendValueListToString(repeatList->mValue.GetListValue(), aProperty,
+ aResult, aSerialization);
+ 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, aSerialization);
+ aResult.Append(']');
+
+ } else {
+ // <track-size>
+ val->mValue.AppendToString(aProperty, aResult, aSerialization);
+ 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,
+ nsCSSValue::Serialization aSerialization) const
+{
+ if (aProperty == eCSSProperty_grid_template_columns ||
+ aProperty == eCSSProperty_grid_template_rows) {
+ AppendGridTemplateToString(this, aProperty, aResult, aSerialization);
+ } else {
+ AppendValueListToString(this, aProperty, aResult, aSerialization);
+ }
+}
+
+/* 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()
+{
+ MOZ_COUNT_DTOR(nsCSSValueSharedList);
+ if (mHead) {
+ NS_CSS_DELETE_LIST_MEMBER(nsCSSValueList, mHead, mNext);
+ delete mHead;
+ }
+}
+
+void
+nsCSSValueSharedList::AppendToString(nsCSSPropertyID aProperty, nsAString& aResult,
+ nsCSSValue::Serialization aSerialization) const
+{
+ if (mHead) {
+ mHead->AppendToString(aProperty, aResult, aSerialization);
+ }
+}
+
+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,
+ nsCSSValue::Serialization aSerialization) 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 ||
+ eCSSProperty_DOM == aProperty) {
+ NS_NAMED_LITERAL_STRING(space, " ");
+
+ mTop.AppendToString(aProperty, aResult, aSerialization);
+ aResult.Append(space);
+ mRight.AppendToString(aProperty, aResult, aSerialization);
+ aResult.Append(space);
+ mBottom.AppendToString(aProperty, aResult, aSerialization);
+ aResult.Append(space);
+ mLeft.AppendToString(aProperty, aResult, aSerialization);
+ } else {
+ NS_NAMED_LITERAL_STRING(comma, ", ");
+
+ aResult.AppendLiteral("rect(");
+ mTop.AppendToString(aProperty, aResult, aSerialization);
+ aResult.Append(comma);
+ mRight.AppendToString(aProperty, aResult, aSerialization);
+ aResult.Append(comma);
+ mBottom.AppendToString(aProperty, aResult, aSerialization);
+ aResult.Append(comma);
+ mLeft.AppendToString(aProperty, aResult, aSerialization);
+ 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(NS_SIDE_TOP == 0 && NS_SIDE_RIGHT == 1 &&
+ NS_SIDE_BOTTOM == 2 && NS_SIDE_LEFT == 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,
+ nsCSSValue::Serialization aSerialization) const
+{
+ mXValue.AppendToString(aProperty, aResult, aSerialization);
+ if (mYValue.GetUnit() != eCSSUnit_Null) {
+ aResult.Append(char16_t(' '));
+ mYValue.AppendToString(aProperty, aResult, aSerialization);
+ }
+}
+
+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,
+ nsCSSValue::Serialization aSerialization) const
+{
+ mXValue.AppendToString(aProperty, aResult, aSerialization);
+ if (mYValue.GetUnit() != eCSSUnit_Null) {
+ aResult.Append(char16_t(' '));
+ mYValue.AppendToString(aProperty, aResult, aSerialization);
+ if (mZValue.GetUnit() != eCSSUnit_Null) {
+ aResult.Append(char16_t(' '));
+ mZValue.AppendToString(aProperty, aResult, aSerialization);
+ }
+ }
+}
+
+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,
+ nsCSSValue::Serialization aSerialization) const
+{
+ const nsCSSValuePairList* item = this;
+ for (;;) {
+ MOZ_ASSERT(item->mXValue.GetUnit() != eCSSUnit_Null,
+ "unexpected null unit");
+ item->mXValue.AppendToString(aProperty, aResult, aSerialization);
+ 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, aSerialization);
+ }
+ 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,
+ nsStringBuffer* aString,
+ already_AddRefed<PtrHolder<nsIURI>> aBaseURI,
+ already_AddRefed<PtrHolder<nsIURI>> aReferrer,
+ already_AddRefed<PtrHolder<nsIPrincipal>>
+ aOriginPrincipal)
+ : mURI(Move(aURI))
+ , mBaseURI(Move(aBaseURI))
+ , mString(aString)
+ , mReferrer(Move(aReferrer))
+ , mOriginPrincipal(Move(aOriginPrincipal))
+ , mURIResolved(true)
+ , mIsLocalRef(IsLocalRefURL(aString))
+{
+ MOZ_ASSERT(mString);
+ MOZ_ASSERT(mBaseURI);
+ MOZ_ASSERT(mOriginPrincipal);
+}
+
+css::URLValueData::URLValueData(nsStringBuffer* aString,
+ already_AddRefed<PtrHolder<nsIURI>> aBaseURI,
+ already_AddRefed<PtrHolder<nsIURI>> aReferrer,
+ already_AddRefed<PtrHolder<nsIPrincipal>>
+ aOriginPrincipal)
+ : mBaseURI(Move(aBaseURI))
+ , mString(aString)
+ , mReferrer(Move(aReferrer))
+ , mOriginPrincipal(Move(aOriginPrincipal))
+ , mURIResolved(false)
+ , mIsLocalRef(IsLocalRefURL(aString))
+{
+ MOZ_ASSERT(aString);
+ MOZ_ASSERT(mBaseURI);
+ MOZ_ASSERT(mOriginPrincipal);
+}
+
+bool
+css::URLValueData::Equals(const URLValueData& aOther) const
+{
+ MOZ_ASSERT(NS_IsMainThread());
+
+ bool eq;
+ // Cast away const so we can call nsIPrincipal::Equals.
+ auto& self = *const_cast<URLValueData*>(this);
+ auto& other = const_cast<URLValueData&>(aOther);
+ return NS_strcmp(nsCSSValue::GetBufferValue(mString),
+ nsCSSValue::GetBufferValue(aOther.mString)) == 0 &&
+ (GetURI() == aOther.GetURI() || // handles null == null
+ (mURI && aOther.mURI &&
+ NS_SUCCEEDED(mURI->Equals(aOther.mURI, &eq)) &&
+ eq)) &&
+ (mBaseURI == aOther.mBaseURI ||
+ (NS_SUCCEEDED(self.mBaseURI.get()->Equals(other.mBaseURI.get(), &eq)) &&
+ eq)) &&
+ (mOriginPrincipal == aOther.mOriginPrincipal ||
+ self.mOriginPrincipal.get()->Equals(other.mOriginPrincipal.get())) &&
+ mIsLocalRef == aOther.mIsLocalRef;
+}
+
+bool
+css::URLValueData::DefinitelyEqualURIs(const URLValueData& aOther) const
+{
+ return mBaseURI == aOther.mBaseURI &&
+ (mString == aOther.mString ||
+ NS_strcmp(nsCSSValue::GetBufferValue(mString),
+ nsCSSValue::GetBufferValue(aOther.mString)) == 0);
+}
+
+bool
+css::URLValueData::DefinitelyEqualURIsAndPrincipal(
+ const URLValueData& aOther) const
+{
+ return mOriginPrincipal == aOther.mOriginPrincipal &&
+ DefinitelyEqualURIs(aOther);
+}
+
+nsIURI*
+css::URLValueData::GetURI() const
+{
+ MOZ_ASSERT(NS_IsMainThread());
+
+ if (!mURIResolved) {
+ MOZ_ASSERT(!mURI);
+ nsCOMPtr<nsIURI> newURI;
+ NS_NewURI(getter_AddRefs(newURI),
+ NS_ConvertUTF16toUTF8(nsCSSValue::GetBufferValue(mString)),
+ nullptr, const_cast<nsIURI*>(mBaseURI.get()));
+ mURI = new PtrHolder<nsIURI>(newURI.forget());
+ mURIResolved = true;
+ }
+
+ return mURI;
+}
+
+already_AddRefed<nsIURI>
+css::URLValueData::ResolveLocalRef(nsIURI* aURI) const
+{
+ nsCOMPtr<nsIURI> result = GetURI();
+
+ if (result && mIsLocalRef) {
+ 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 (mIsLocalRef) {
+ // 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;
+ n += mString->SizeOfIncludingThisIfUnshared(aMallocSizeOf);
+
+ // Measurement of the following members may be added later if DMD finds it
+ // is worthwhile:
+ // - mURI
+ // - mReferrer
+ // - mOriginPrincipal
+ return n;
+}
+
+URLValue::URLValue(nsStringBuffer* aString, nsIURI* aBaseURI, nsIURI* aReferrer,
+ nsIPrincipal* aOriginPrincipal)
+ : URLValueData(aString,
+ do_AddRef(new PtrHolder<nsIURI>(aBaseURI)),
+ do_AddRef(new PtrHolder<nsIURI>(aReferrer)),
+ do_AddRef(new PtrHolder<nsIPrincipal>(aOriginPrincipal)))
+{
+ MOZ_ASSERT(NS_IsMainThread());
+}
+
+URLValue::URLValue(nsIURI* aURI, nsStringBuffer* aString, nsIURI* aBaseURI,
+ nsIURI* aReferrer, nsIPrincipal* aOriginPrincipal)
+ : URLValueData(do_AddRef(new PtrHolder<nsIURI>(aURI)),
+ aString,
+ do_AddRef(new PtrHolder<nsIURI>(aBaseURI)),
+ do_AddRef(new PtrHolder<nsIURI>(aReferrer)),
+ do_AddRef(new PtrHolder<nsIPrincipal>(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, nsStringBuffer* aString,
+ nsIURI* aBaseURI, nsIURI* aReferrer,
+ nsIPrincipal* aOriginPrincipal,
+ nsIDocument* aDocument)
+ : URLValueData(do_AddRef(new PtrHolder<nsIURI>(aURI)),
+ aString,
+ do_AddRef(new PtrHolder<nsIURI>(aBaseURI, false)),
+ do_AddRef(new PtrHolder<nsIURI>(aReferrer)),
+ do_AddRef(new PtrHolder<nsIPrincipal>(aOriginPrincipal)))
+{
+ Initialize(aDocument);
+}
+
+css::ImageValue::ImageValue(
+ nsStringBuffer* aString,
+ already_AddRefed<PtrHolder<nsIURI>> aBaseURI,
+ already_AddRefed<PtrHolder<nsIURI>> aReferrer,
+ already_AddRefed<PtrHolder<nsIPrincipal>> aOriginPrincipal)
+ : URLValueData(aString, Move(aBaseURI), Move(aReferrer),
+ Move(aOriginPrincipal))
+{
+}
+
+void
+css::ImageValue::Initialize(nsIDocument* aDocument)
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(!mInitialized);
+
+ // 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;
+ }
+
+ loadingDoc->StyleImageLoader()->LoadImage(GetURI(), mOriginPrincipal,
+ mReferrer, this);
+
+ if (loadingDoc != aDocument) {
+ aDocument->StyleImageLoader()->MaybeRegisterCSSImage(this);
+ }
+
+#ifdef DEBUG
+ mInitialized = true;
+#endif
+}
+
+css::ImageValue::~ImageValue()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+
+ 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::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),
+ 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)
+{
+ MOZ_COUNT_CTOR(nsCSSValueTokenStream);
+}
+
+nsCSSValueTokenStream::~nsCSSValueTokenStream()
+{
+ MOZ_COUNT_DTOR(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(NS_CORNER_TOP_LEFT == 0 && NS_CORNER_TOP_RIGHT == 1 &&
+ NS_CORNER_BOTTOM_RIGHT == 2 && NS_CORNER_BOTTOM_LEFT == 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 01:08:55 +0000