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Issue #2045 - Part 2: Add handling and storage for the revert unit and value

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This commit is contained in:
Francis Dominic Fajardo 2025-06-20 10:33:22 +08:00 • committed by roytam1
commit 7f3f90eed4
2 changed files with 55 additions and 7 deletions
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52
layout/style/nsCSSValue.cpp
View file

@ -166,6 +166,9 @@ nsCSSValue::nsCSSValue(const nsCSSValue& aCopy)
mValue.mComplexColor = aCopy.mValue.mComplexColor; mValue.mComplexColor = aCopy.mValue.mComplexColor;
mValue.mComplexColor->AddRef(); mValue.mComplexColor->AddRef();
} }
else if (eCSSUnit_Revert == mUnit) {
mValue.mCascadeOrigin = aCopy.mValue.mCascadeOrigin;
}
else if (UnitHasArrayValue()) { else if (UnitHasArrayValue()) {
mValue.mArray = aCopy.mValue.mArray; mValue.mArray = aCopy.mValue.mArray;
mValue.mArray->AddRef(); mValue.mArray->AddRef();
@ -279,6 +282,9 @@ bool nsCSSValue::operator==(const nsCSSValue& aOther) const
else if (eCSSUnit_ComplexColor == mUnit) { else if (eCSSUnit_ComplexColor == mUnit) {
return *mValue.mComplexColor == *aOther.mValue.mComplexColor; return *mValue.mComplexColor == *aOther.mValue.mComplexColor;
} }
else if (eCSSUnit_Revert == mUnit) {
return mValue.mCascadeOrigin == aOther.mValue.mCascadeOrigin;
}
else if (UnitHasArrayValue()) { else if (UnitHasArrayValue()) {
return *mValue.mArray == *aOther.mValue.mArray; return *mValue.mArray == *aOther.mValue.mArray;
} }
@ -539,6 +545,15 @@ nsCSSValue::SetComplexColorValue(already_AddRefed<ComplexColorValue> aValue)
mValue.mComplexColor = aValue.take(); mValue.mComplexColor = aValue.take();
} }
void
nsCSSValue::SetCascadeOriginValue(mozilla::SheetType aValue, nsCSSUnit aUnit)
{
MOZ_ASSERT(aUnit == eCSSUnit_Revert, "bad unit");
Reset();
mUnit = aUnit;
mValue.mCascadeOrigin = aValue;
}
void nsCSSValue::SetArrayValue(nsCSSValue::Array* aValue, nsCSSUnit aUnit) void nsCSSValue::SetArrayValue(nsCSSValue::Array* aValue, nsCSSUnit aUnit)
{ {
Reset(); Reset();
@ -598,7 +613,7 @@ void nsCSSValue::SetFontFamilyListValue(css::FontFamilyListRefCnt* aValue)
void nsCSSValue::SetPairValue(const nsCSSValuePair* aValue) void nsCSSValue::SetPairValue(const nsCSSValuePair* aValue)
{ {
// pairs should not be used for null/inherit/initial values // pairs should not be used for null/inherit/initial/unset/revert values
MOZ_ASSERT(aValue && MOZ_ASSERT(aValue &&
aValue->mXValue.GetUnit() != eCSSUnit_Null && aValue->mXValue.GetUnit() != eCSSUnit_Null &&
aValue->mYValue.GetUnit() != eCSSUnit_Null && aValue->mYValue.GetUnit() != eCSSUnit_Null &&
@ -607,7 +622,9 @@ void nsCSSValue::SetPairValue(const nsCSSValuePair* aValue)
aValue->mXValue.GetUnit() != eCSSUnit_Initial && aValue->mXValue.GetUnit() != eCSSUnit_Initial &&
aValue->mYValue.GetUnit() != eCSSUnit_Initial && aValue->mYValue.GetUnit() != eCSSUnit_Initial &&
aValue->mXValue.GetUnit() != eCSSUnit_Unset && aValue->mXValue.GetUnit() != eCSSUnit_Unset &&
aValue->mYValue.GetUnit() != eCSSUnit_Unset, aValue->mYValue.GetUnit() != eCSSUnit_Unset &&
aValue->mXValue.GetUnit() != eCSSUnit_Revert &&
aValue->mYValue.GetUnit() != eCSSUnit_Revert,
"missing or inappropriate pair value"); "missing or inappropriate pair value");
Reset(); Reset();
mUnit = eCSSUnit_Pair; mUnit = eCSSUnit_Pair;
@ -625,7 +642,9 @@ void nsCSSValue::SetPairValue(const nsCSSValue& xValue,
xValue.GetUnit() != eCSSUnit_Initial && xValue.GetUnit() != eCSSUnit_Initial &&
yValue.GetUnit() != eCSSUnit_Initial && yValue.GetUnit() != eCSSUnit_Initial &&
xValue.GetUnit() != eCSSUnit_Unset && xValue.GetUnit() != eCSSUnit_Unset &&
yValue.GetUnit() != eCSSUnit_Unset, yValue.GetUnit() != eCSSUnit_Unset &&
xValue.GetUnit() != eCSSUnit_Revert &&
yValue.GetUnit() != eCSSUnit_Revert,
"inappropriate pair value"); "inappropriate pair value");
Reset(); Reset();
mUnit = eCSSUnit_Pair; mUnit = eCSSUnit_Pair;
@ -635,7 +654,7 @@ void nsCSSValue::SetPairValue(const nsCSSValue& xValue,
void nsCSSValue::SetTripletValue(const nsCSSValueTriplet* aValue) void nsCSSValue::SetTripletValue(const nsCSSValueTriplet* aValue)
{ {
// triplet should not be used for null/inherit/initial values // triplet should not be used for null/inherit/initial/unset/revert values
MOZ_ASSERT(aValue && MOZ_ASSERT(aValue &&
aValue->mXValue.GetUnit() != eCSSUnit_Null && aValue->mXValue.GetUnit() != eCSSUnit_Null &&
aValue->mYValue.GetUnit() != eCSSUnit_Null && aValue->mYValue.GetUnit() != eCSSUnit_Null &&
@ -648,7 +667,10 @@ void nsCSSValue::SetTripletValue(const nsCSSValueTriplet* aValue)
aValue->mZValue.GetUnit() != eCSSUnit_Initial && aValue->mZValue.GetUnit() != eCSSUnit_Initial &&
aValue->mXValue.GetUnit() != eCSSUnit_Unset && aValue->mXValue.GetUnit() != eCSSUnit_Unset &&
aValue->mYValue.GetUnit() != eCSSUnit_Unset && aValue->mYValue.GetUnit() != eCSSUnit_Unset &&
aValue->mZValue.GetUnit() != eCSSUnit_Unset, aValue->mZValue.GetUnit() != eCSSUnit_Unset &&
aValue->mXValue.GetUnit() != eCSSUnit_Revert &&
aValue->mYValue.GetUnit() != eCSSUnit_Revert &&
aValue->mZValue.GetUnit() != eCSSUnit_Revert,
"missing or inappropriate triplet value"); "missing or inappropriate triplet value");
Reset(); Reset();
mUnit = eCSSUnit_Triplet; mUnit = eCSSUnit_Triplet;
@ -671,7 +693,10 @@ void nsCSSValue::SetTripletValue(const nsCSSValue& xValue,
zValue.GetUnit() != eCSSUnit_Initial && zValue.GetUnit() != eCSSUnit_Initial &&
xValue.GetUnit() != eCSSUnit_Unset && xValue.GetUnit() != eCSSUnit_Unset &&
yValue.GetUnit() != eCSSUnit_Unset && yValue.GetUnit() != eCSSUnit_Unset &&
zValue.GetUnit() != eCSSUnit_Unset, zValue.GetUnit() != eCSSUnit_Unset &&
xValue.GetUnit() != eCSSUnit_Revert &&
yValue.GetUnit() != eCSSUnit_Revert &&
zValue.GetUnit() != eCSSUnit_Revert,
"inappropriate triplet value"); "inappropriate triplet value");
Reset(); Reset();
mUnit = eCSSUnit_Triplet; mUnit = eCSSUnit_Triplet;
@ -781,6 +806,12 @@ void nsCSSValue::SetUnsetValue()
mUnit = eCSSUnit_Unset; mUnit = eCSSUnit_Unset;
} }
void
nsCSSValue::SetRevertValue(mozilla::SheetType aValue)
{
SetCascadeOriginValue(aValue, eCSSUnit_Revert);
}
void nsCSSValue::SetNoneValue() void nsCSSValue::SetNoneValue()
{ {
Reset(); Reset();
@ -1930,6 +1961,7 @@ nsCSSValue::AppendToString(nsCSSPropertyID aProperty, nsAString& aResult,
case eCSSUnit_Inherit: aResult.AppendLiteral("inherit"); break; case eCSSUnit_Inherit: aResult.AppendLiteral("inherit"); break;
case eCSSUnit_Initial: aResult.AppendLiteral("initial"); break; case eCSSUnit_Initial: aResult.AppendLiteral("initial"); break;
case eCSSUnit_Unset: aResult.AppendLiteral("unset"); break; case eCSSUnit_Unset: aResult.AppendLiteral("unset"); break;
case eCSSUnit_Revert: aResult.AppendLiteral("revert"); break;
case eCSSUnit_None: aResult.AppendLiteral("none"); break; case eCSSUnit_None: aResult.AppendLiteral("none"); break;
case eCSSUnit_Normal: aResult.AppendLiteral("normal"); break; case eCSSUnit_Normal: aResult.AppendLiteral("normal"); break;
case eCSSUnit_System_Font: aResult.AppendLiteral("-moz-use-system-font"); break; case eCSSUnit_System_Font: aResult.AppendLiteral("-moz-use-system-font"); break;
@ -2189,6 +2221,10 @@ nsCSSValue::SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
n += mValue.mComplexColor->SizeOfIncludingThis(aMallocSizeOf); n += mValue.mComplexColor->SizeOfIncludingThis(aMallocSizeOf);
break; break;
// Cascade Origin: nothing extra to measure.
case eCSSUnit_Revert:
break;
// Float: nothing extra to measure. // Float: nothing extra to measure.
case eCSSUnit_Percent: case eCSSUnit_Percent:
case eCSSUnit_Number: case eCSSUnit_Number:
@ -2511,7 +2547,8 @@ nsCSSRect::AppendToString(nsCSSPropertyID aProperty, nsAString& aResult,
MOZ_ASSERT(mTop.GetUnit() != eCSSUnit_Null && MOZ_ASSERT(mTop.GetUnit() != eCSSUnit_Null &&
mTop.GetUnit() != eCSSUnit_Inherit && mTop.GetUnit() != eCSSUnit_Inherit &&
mTop.GetUnit() != eCSSUnit_Initial && mTop.GetUnit() != eCSSUnit_Initial &&
mTop.GetUnit() != eCSSUnit_Unset, mTop.GetUnit() != eCSSUnit_Unset &&
mTop.GetUnit() != eCSSUnit_Revert,
"parser should have used a bare value"); "parser should have used a bare value");
if (eCSSProperty_border_image_slice == aProperty || if (eCSSProperty_border_image_slice == aProperty ||
@ -2681,6 +2718,7 @@ nsCSSValuePairList::AppendToString(nsCSSPropertyID aProperty,
if (item->mXValue.GetUnit() != eCSSUnit_Inherit && if (item->mXValue.GetUnit() != eCSSUnit_Inherit &&
item->mXValue.GetUnit() != eCSSUnit_Initial && item->mXValue.GetUnit() != eCSSUnit_Initial &&
item->mXValue.GetUnit() != eCSSUnit_Unset && item->mXValue.GetUnit() != eCSSUnit_Unset &&
item->mXValue.GetUnit() != eCSSUnit_Revert &&
item->mYValue.GetUnit() != eCSSUnit_Null) { item->mYValue.GetUnit() != eCSSUnit_Null) {
aResult.Append(char16_t(' ')); aResult.Append(char16_t(' '));
item->mYValue.AppendToString(aProperty, aResult, aSerialization); item->mYValue.AppendToString(aProperty, aResult, aSerialization);

10
layout/style/nsCSSValue.h
View file

@ -484,6 +484,7 @@ enum nsCSSUnit {
eCSSUnit_TokenStream = 43, // (nsCSSValueTokenStream*) value eCSSUnit_TokenStream = 43, // (nsCSSValueTokenStream*) value
eCSSUnit_GridTemplateAreas = 44, // (GridTemplateAreasValue*) eCSSUnit_GridTemplateAreas = 44, // (GridTemplateAreasValue*)
// for grid-template-areas // for grid-template-areas
eCSSUnit_Revert = 45, // (SheetType) value is the current cascade origin
eCSSUnit_Pair = 50, // (nsCSSValuePair*) pair of values eCSSUnit_Pair = 50, // (nsCSSValuePair*) pair of values
eCSSUnit_Triplet = 51, // (nsCSSValueTriplet*) triplet of values eCSSUnit_Triplet = 51, // (nsCSSValueTriplet*) triplet of values
@ -911,6 +912,12 @@ public:
return mValue.mFloatColor; return mValue.mFloatColor;
} }
mozilla::SheetType GetCascadeOriginValue() const
{
MOZ_ASSERT(mUnit == eCSSUnit_Revert, "not a cascade origin value");
return mValue.mCascadeOrigin;
}
void Reset() // sets to null void Reset() // sets to null
{ {
if (mUnit != eCSSUnit_Null) if (mUnit != eCSSUnit_Null)
@ -943,6 +950,7 @@ public:
void SetRGBAColorValue(const mozilla::css::RGBAColorData& aValue); void SetRGBAColorValue(const mozilla::css::RGBAColorData& aValue);
void SetComplexColorValue( void SetComplexColorValue(
already_AddRefed<mozilla::css::ComplexColorValue> aValue); already_AddRefed<mozilla::css::ComplexColorValue> aValue);
void SetCascadeOriginValue(mozilla::SheetType aValue, nsCSSUnit aUnit);
void SetArrayValue(nsCSSValue::Array* aArray, nsCSSUnit aUnit); void SetArrayValue(nsCSSValue::Array* aArray, nsCSSUnit aUnit);
void SetURLValue(mozilla::css::URLValue* aURI); void SetURLValue(mozilla::css::URLValue* aURI);
void SetImageValue(mozilla::css::ImageValue* aImage); void SetImageValue(mozilla::css::ImageValue* aImage);
@ -961,6 +969,7 @@ public:
void SetInheritValue(); void SetInheritValue();
void SetInitialValue(); void SetInitialValue();
void SetUnsetValue(); void SetUnsetValue();
void SetRevertValue(mozilla::SheetType aValue);
void SetNoneValue(); void SetNoneValue();
void SetAllValue(); void SetAllValue();
void SetNormalValue(); void SetNormalValue();
@ -1054,6 +1063,7 @@ protected:
nsCSSValueFloatColor* MOZ_OWNING_REF mFloatColor; nsCSSValueFloatColor* MOZ_OWNING_REF mFloatColor;
mozilla::css::FontFamilyListRefCnt* MOZ_OWNING_REF mFontFamilyList; mozilla::css::FontFamilyListRefCnt* MOZ_OWNING_REF mFontFamilyList;
mozilla::css::ComplexColorValue* MOZ_OWNING_REF mComplexColor; mozilla::css::ComplexColorValue* MOZ_OWNING_REF mComplexColor;
mozilla::SheetType mCascadeOrigin;
} mValue; } mValue;
}; };