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Bug 1274835 - Refactor code to process basic shape from clip-path. r=heycam
This can be used in the implementation of shape-outside. MozReview-Commit-ID: C7bd4D2Kwpm --HG-- extra : rebase_source : fefdd869b1ede3c518e496d8b25ffa5953a7145d
This commit is contained in:
Ting-Yu Lin
parent
3afaab9b67
commit
d06693b2f0
@ -5886,84 +5886,94 @@ nsComputedDOMStyle::BasicShapeRadiiToString(nsAString& aCssText,
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aCssText.Append(verticalString);
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}
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already_AddRefed<CSSValue>
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nsComputedDOMStyle::CreatePrimitiveValueForBasicShape(
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const nsStyleBasicShape* aStyleBasicShape)
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{
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MOZ_ASSERT(aStyleBasicShape, "Expect a valid basic shape pointer!");
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nsStyleBasicShape::Type type = aStyleBasicShape->GetShapeType();
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// Shape function name and opening parenthesis.
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nsAutoString shapeFunctionString;
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AppendASCIItoUTF16(nsCSSKeywords::GetStringValue(
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aStyleBasicShape->GetShapeTypeName()),
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shapeFunctionString);
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shapeFunctionString.Append('(');
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switch (type) {
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case nsStyleBasicShape::Type::ePolygon: {
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bool hasEvenOdd = aStyleBasicShape->GetFillRule() ==
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NS_STYLE_FILL_RULE_EVENODD;
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if (hasEvenOdd) {
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shapeFunctionString.AppendLiteral("evenodd");
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}
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for (size_t i = 0;
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i < aStyleBasicShape->Coordinates().Length(); i += 2) {
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nsAutoString coordString;
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if (i > 0 || hasEvenOdd) {
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shapeFunctionString.AppendLiteral(", ");
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}
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SetCssTextToCoord(coordString,
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aStyleBasicShape->Coordinates()[i]);
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shapeFunctionString.Append(coordString);
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shapeFunctionString.Append(' ');
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SetCssTextToCoord(coordString,
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aStyleBasicShape->Coordinates()[i + 1]);
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shapeFunctionString.Append(coordString);
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}
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break;
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}
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case nsStyleBasicShape::Type::eCircle:
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case nsStyleBasicShape::Type::eEllipse: {
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const nsTArray<nsStyleCoord>& radii = aStyleBasicShape->Coordinates();
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MOZ_ASSERT(radii.Length() ==
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(type == nsStyleBasicShape::Type::eCircle ? 1 : 2),
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"wrong number of radii");
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for (size_t i = 0; i < radii.Length(); ++i) {
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nsAutoString radius;
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RefPtr<nsROCSSPrimitiveValue> value = new nsROCSSPrimitiveValue;
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bool clampNegativeCalc = true;
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SetValueToCoord(value, radii[i], clampNegativeCalc, nullptr,
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nsCSSProps::kShapeRadiusKTable);
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value->GetCssText(radius);
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shapeFunctionString.Append(radius);
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shapeFunctionString.Append(' ');
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}
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shapeFunctionString.AppendLiteral("at ");
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RefPtr<nsDOMCSSValueList> position = GetROCSSValueList(false);
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nsAutoString positionString;
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SetValueToPosition(aStyleBasicShape->GetPosition(), position);
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position->GetCssText(positionString);
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shapeFunctionString.Append(positionString);
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break;
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}
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case nsStyleBasicShape::Type::eInset: {
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BoxValuesToString(shapeFunctionString, aStyleBasicShape->Coordinates());
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if (aStyleBasicShape->HasRadius()) {
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shapeFunctionString.AppendLiteral(" round ");
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nsAutoString radiiString;
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BasicShapeRadiiToString(radiiString, aStyleBasicShape->GetRadius());
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shapeFunctionString.Append(radiiString);
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}
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break;
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}
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default:
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NS_NOTREACHED("unexpected type");
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}
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shapeFunctionString.Append(')');
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RefPtr<nsROCSSPrimitiveValue> functionValue = new nsROCSSPrimitiveValue;
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functionValue->SetString(shapeFunctionString);
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return functionValue.forget();
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}
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already_AddRefed<CSSValue>
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nsComputedDOMStyle::CreatePrimitiveValueForClipPath(
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const nsStyleBasicShape* aStyleBasicShape, uint8_t aSizingBox)
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{
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RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
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if (aStyleBasicShape) {
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nsStyleBasicShape::Type type = aStyleBasicShape->GetShapeType();
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// Shape function name and opening parenthesis.
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nsAutoString shapeFunctionString;
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AppendASCIItoUTF16(nsCSSKeywords::GetStringValue(
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aStyleBasicShape->GetShapeTypeName()),
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shapeFunctionString);
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shapeFunctionString.Append('(');
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switch (type) {
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case nsStyleBasicShape::Type::ePolygon: {
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bool hasEvenOdd = aStyleBasicShape->GetFillRule() ==
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NS_STYLE_FILL_RULE_EVENODD;
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if (hasEvenOdd) {
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shapeFunctionString.AppendLiteral("evenodd");
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}
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for (size_t i = 0;
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i < aStyleBasicShape->Coordinates().Length(); i += 2) {
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nsAutoString coordString;
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if (i > 0 || hasEvenOdd) {
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shapeFunctionString.AppendLiteral(", ");
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}
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SetCssTextToCoord(coordString,
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aStyleBasicShape->Coordinates()[i]);
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shapeFunctionString.Append(coordString);
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shapeFunctionString.Append(' ');
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SetCssTextToCoord(coordString,
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aStyleBasicShape->Coordinates()[i + 1]);
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shapeFunctionString.Append(coordString);
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}
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break;
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}
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case nsStyleBasicShape::Type::eCircle:
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case nsStyleBasicShape::Type::eEllipse: {
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const nsTArray<nsStyleCoord>& radii = aStyleBasicShape->Coordinates();
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MOZ_ASSERT(radii.Length() ==
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(type == nsStyleBasicShape::Type::eCircle ? 1 : 2),
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"wrong number of radii");
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for (size_t i = 0; i < radii.Length(); ++i) {
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nsAutoString radius;
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RefPtr<nsROCSSPrimitiveValue> value = new nsROCSSPrimitiveValue;
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bool clampNegativeCalc = true;
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SetValueToCoord(value, radii[i], clampNegativeCalc, nullptr,
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nsCSSProps::kShapeRadiusKTable);
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value->GetCssText(radius);
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shapeFunctionString.Append(radius);
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shapeFunctionString.Append(' ');
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}
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shapeFunctionString.AppendLiteral("at ");
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RefPtr<nsDOMCSSValueList> position = GetROCSSValueList(false);
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nsAutoString positionString;
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SetValueToPosition(aStyleBasicShape->GetPosition(), position);
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position->GetCssText(positionString);
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shapeFunctionString.Append(positionString);
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break;
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}
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case nsStyleBasicShape::Type::eInset: {
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BoxValuesToString(shapeFunctionString, aStyleBasicShape->Coordinates());
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if (aStyleBasicShape->HasRadius()) {
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shapeFunctionString.AppendLiteral(" round ");
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nsAutoString radiiString;
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BasicShapeRadiiToString(radiiString, aStyleBasicShape->GetRadius());
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shapeFunctionString.Append(radiiString);
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}
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break;
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}
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default:
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NS_NOTREACHED("unexpected type");
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}
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shapeFunctionString.Append(')');
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RefPtr<nsROCSSPrimitiveValue> functionValue = new nsROCSSPrimitiveValue;
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functionValue->SetString(shapeFunctionString);
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valueList->AppendCSSValue(functionValue.forget());
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valueList->AppendCSSValue(
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CreatePrimitiveValueForBasicShape(aStyleBasicShape));
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}
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if (aSizingBox == NS_STYLE_CLIP_SHAPE_SIZING_NOBOX) {
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@ -643,9 +643,12 @@ private:
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already_AddRefed<CSSValue> CreatePrimitiveValueForStyleFilter(
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const nsStyleFilter& aStyleFilter);
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// Helper function for computing basic shape styles.
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already_AddRefed<CSSValue> CreatePrimitiveValueForClipPath(
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const nsStyleBasicShape* aStyleBasicShape, uint8_t aSizingBox);
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// Helper function for computing basic shape styles.
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already_AddRefed<CSSValue> CreatePrimitiveValueForBasicShape(
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const nsStyleBasicShape* aStyleBasicShape);
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void BoxValuesToString(nsAString& aString,
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const nsTArray<nsStyleCoord>& aBoxValues);
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void BasicShapeRadiiToString(nsAString& aCssText,
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@ -9522,6 +9522,155 @@ nsRuleNode::ComputeSVGData(void* aStartStruct,
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COMPUTE_END_INHERITED(SVG, svg)
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}
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already_AddRefed<nsStyleBasicShape>
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nsRuleNode::GetStyleBasicShapeFromCSSValue(const nsCSSValue& aValue,
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nsStyleContext* aStyleContext,
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nsPresContext* aPresContext,
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RuleNodeCacheConditions& aConditions)
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{
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RefPtr<nsStyleBasicShape> basicShape;
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nsCSSValue::Array* shapeFunction = aValue.GetArrayValue();
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nsCSSKeyword functionName =
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(nsCSSKeyword)shapeFunction->Item(0).GetIntValue();
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if (functionName == eCSSKeyword_polygon) {
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MOZ_ASSERT(!basicShape, "did not expect value");
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basicShape = new nsStyleBasicShape(nsStyleBasicShape::ePolygon);
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MOZ_ASSERT(shapeFunction->Count() > 1,
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"polygon has wrong number of arguments");
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size_t j = 1;
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if (shapeFunction->Item(j).GetUnit() == eCSSUnit_Enumerated) {
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basicShape->SetFillRule(shapeFunction->Item(j).GetIntValue());
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++j;
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}
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const int32_t mask = SETCOORD_PERCENT | SETCOORD_LENGTH |
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SETCOORD_STORE_CALC;
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const nsCSSValuePairList* curPair =
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shapeFunction->Item(j).GetPairListValue();
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nsTArray<nsStyleCoord>& coordinates = basicShape->Coordinates();
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while (curPair) {
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nsStyleCoord xCoord, yCoord;
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DebugOnly<bool> didSetCoordX = SetCoord(curPair->mXValue, xCoord,
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nsStyleCoord(), mask,
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aStyleContext, aPresContext,
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aConditions);
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coordinates.AppendElement(xCoord);
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MOZ_ASSERT(didSetCoordX, "unexpected x coordinate unit");
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DebugOnly<bool> didSetCoordY = SetCoord(curPair->mYValue, yCoord,
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nsStyleCoord(), mask,
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aStyleContext, aPresContext,
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aConditions);
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coordinates.AppendElement(yCoord);
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MOZ_ASSERT(didSetCoordY, "unexpected y coordinate unit");
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curPair = curPair->mNext;
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}
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} else if (functionName == eCSSKeyword_circle ||
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functionName == eCSSKeyword_ellipse) {
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nsStyleBasicShape::Type type = functionName == eCSSKeyword_circle ?
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nsStyleBasicShape::eCircle :
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nsStyleBasicShape::eEllipse;
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MOZ_ASSERT(!basicShape, "did not expect value");
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basicShape = new nsStyleBasicShape(type);
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const int32_t mask = SETCOORD_PERCENT | SETCOORD_LENGTH |
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SETCOORD_STORE_CALC | SETCOORD_ENUMERATED;
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size_t count = type == nsStyleBasicShape::eCircle ? 2 : 3;
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MOZ_ASSERT(shapeFunction->Count() == count + 1,
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"unexpected arguments count");
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MOZ_ASSERT(type == nsStyleBasicShape::eCircle ||
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(shapeFunction->Item(1).GetUnit() == eCSSUnit_Null) ==
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(shapeFunction->Item(2).GetUnit() == eCSSUnit_Null),
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"ellipse should have two radii or none");
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for (size_t j = 1; j < count; ++j) {
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const nsCSSValue& val = shapeFunction->Item(j);
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nsStyleCoord radius;
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if (val.GetUnit() != eCSSUnit_Null) {
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DebugOnly<bool> didSetRadius = SetCoord(val, radius,
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nsStyleCoord(), mask,
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aStyleContext,
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aPresContext,
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aConditions);
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MOZ_ASSERT(didSetRadius, "unexpected radius unit");
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} else {
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radius.SetIntValue(NS_RADIUS_CLOSEST_SIDE, eStyleUnit_Enumerated);
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}
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basicShape->Coordinates().AppendElement(radius);
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}
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const nsCSSValue& positionVal = shapeFunction->Item(count);
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if (positionVal.GetUnit() == eCSSUnit_Array) {
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ComputePositionValue(aStyleContext, positionVal,
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basicShape->GetPosition(),
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aConditions);
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} else {
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MOZ_ASSERT(positionVal.GetUnit() == eCSSUnit_Null,
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"expected no value");
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}
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} else if (functionName == eCSSKeyword_inset) {
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MOZ_ASSERT(!basicShape, "did not expect value");
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basicShape = new nsStyleBasicShape(nsStyleBasicShape::eInset);
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MOZ_ASSERT(shapeFunction->Count() == 6,
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"inset function has wrong number of arguments");
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MOZ_ASSERT(shapeFunction->Item(1).GetUnit() != eCSSUnit_Null,
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"no shape arguments defined");
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const int32_t mask = SETCOORD_PERCENT | SETCOORD_LENGTH |
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SETCOORD_STORE_CALC;
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nsTArray<nsStyleCoord>& coords = basicShape->Coordinates();
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for (size_t j = 1; j <= 4; ++j) {
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const nsCSSValue& val = shapeFunction->Item(j);
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nsStyleCoord inset;
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// Fill missing values to get 4 at the end.
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if (val.GetUnit() == eCSSUnit_Null) {
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if (j == 4) {
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inset = coords[1];
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} else {
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MOZ_ASSERT(j != 1, "first argument not specified");
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inset = coords[0];
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}
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} else {
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DebugOnly<bool> didSetInset = SetCoord(val, inset,
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nsStyleCoord(), mask,
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aStyleContext, aPresContext,
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aConditions);
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MOZ_ASSERT(didSetInset, "unexpected inset unit");
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}
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coords.AppendElement(inset);
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}
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nsStyleCorners& insetRadius = basicShape->GetRadius();
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if (shapeFunction->Item(5).GetUnit() == eCSSUnit_Array) {
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nsCSSValue::Array* radiiArray = shapeFunction->Item(5).GetArrayValue();
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NS_FOR_CSS_FULL_CORNERS(corner) {
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int cx = NS_FULL_TO_HALF_CORNER(corner, false);
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int cy = NS_FULL_TO_HALF_CORNER(corner, true);
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const nsCSSValue& radius = radiiArray->Item(corner);
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nsStyleCoord coordX, coordY;
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DebugOnly<bool> didSetRadii = SetPairCoords(radius, coordX, coordY,
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nsStyleCoord(),
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nsStyleCoord(), mask,
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aStyleContext,
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aPresContext,
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aConditions);
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MOZ_ASSERT(didSetRadii, "unexpected radius unit");
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insetRadius.Set(cx, coordX);
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insetRadius.Set(cy, coordY);
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}
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} else {
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MOZ_ASSERT(shapeFunction->Item(5).GetUnit() == eCSSUnit_Null,
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"unexpected value");
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// Initialize border-radius
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nsStyleCoord zero;
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zero.SetCoordValue(0);
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NS_FOR_CSS_HALF_CORNERS(j) {
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insetRadius.Set(j, zero);
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}
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}
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} else {
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NS_NOTREACHED("unexpected basic shape function");
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}
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return basicShape.forget();
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}
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void
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nsRuleNode::SetStyleClipPathToCSSValue(nsStyleClipPath* aStyleClipPath,
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const nsCSSValue* aValue,
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@ -9548,143 +9697,8 @@ nsRuleNode::SetStyleClipPathToCSSValue(nsStyleClipPath* aStyleClipPath,
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}
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sizingBox = (uint8_t)type;
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} else if (array->Item(i).GetUnit() == eCSSUnit_Function) {
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nsCSSValue::Array* shapeFunction = array->Item(i).GetArrayValue();
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nsCSSKeyword functionName =
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(nsCSSKeyword)shapeFunction->Item(0).GetIntValue();
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if (functionName == eCSSKeyword_polygon) {
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MOZ_ASSERT(!basicShape, "did not expect value");
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basicShape = new nsStyleBasicShape(nsStyleBasicShape::ePolygon);
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MOZ_ASSERT(shapeFunction->Count() > 1,
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"polygon has wrong number of arguments");
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size_t j = 1;
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if (shapeFunction->Item(j).GetUnit() == eCSSUnit_Enumerated) {
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basicShape->SetFillRule(shapeFunction->Item(j).GetIntValue());
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++j;
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}
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const int32_t mask = SETCOORD_PERCENT | SETCOORD_LENGTH |
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SETCOORD_STORE_CALC;
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const nsCSSValuePairList* curPair =
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shapeFunction->Item(j).GetPairListValue();
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nsTArray<nsStyleCoord>& coordinates = basicShape->Coordinates();
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while (curPair) {
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nsStyleCoord xCoord, yCoord;
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DebugOnly<bool> didSetCoordX = SetCoord(curPair->mXValue, xCoord,
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nsStyleCoord(), mask,
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aStyleContext, aPresContext,
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aConditions);
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coordinates.AppendElement(xCoord);
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MOZ_ASSERT(didSetCoordX, "unexpected x coordinate unit");
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DebugOnly<bool> didSetCoordY = SetCoord(curPair->mYValue, yCoord,
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nsStyleCoord(), mask,
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aStyleContext, aPresContext,
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aConditions);
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coordinates.AppendElement(yCoord);
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MOZ_ASSERT(didSetCoordY, "unexpected y coordinate unit");
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curPair = curPair->mNext;
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}
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} else if (functionName == eCSSKeyword_circle ||
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functionName == eCSSKeyword_ellipse) {
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nsStyleBasicShape::Type type = functionName == eCSSKeyword_circle ?
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nsStyleBasicShape::eCircle :
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nsStyleBasicShape::eEllipse;
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MOZ_ASSERT(!basicShape, "did not expect value");
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basicShape = new nsStyleBasicShape(type);
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const int32_t mask = SETCOORD_PERCENT | SETCOORD_LENGTH |
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SETCOORD_STORE_CALC | SETCOORD_ENUMERATED;
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size_t count = type == nsStyleBasicShape::eCircle ? 2 : 3;
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MOZ_ASSERT(shapeFunction->Count() == count + 1,
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"unexpected arguments count");
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MOZ_ASSERT(type == nsStyleBasicShape::eCircle ||
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(shapeFunction->Item(1).GetUnit() == eCSSUnit_Null) ==
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(shapeFunction->Item(2).GetUnit() == eCSSUnit_Null),
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"ellipse should have two radii or none");
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for (size_t j = 1; j < count; ++j) {
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const nsCSSValue& val = shapeFunction->Item(j);
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nsStyleCoord radius;
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if (val.GetUnit() != eCSSUnit_Null) {
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DebugOnly<bool> didSetRadius = SetCoord(val, radius,
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nsStyleCoord(), mask,
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aStyleContext,
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aPresContext,
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aConditions);
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MOZ_ASSERT(didSetRadius, "unexpected radius unit");
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} else {
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radius.SetIntValue(NS_RADIUS_CLOSEST_SIDE, eStyleUnit_Enumerated);
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}
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basicShape->Coordinates().AppendElement(radius);
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}
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const nsCSSValue& positionVal = shapeFunction->Item(count);
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if (positionVal.GetUnit() == eCSSUnit_Array) {
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ComputePositionValue(aStyleContext, positionVal,
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basicShape->GetPosition(),
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aConditions);
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} else {
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MOZ_ASSERT(positionVal.GetUnit() == eCSSUnit_Null,
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"expected no value");
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}
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} else if (functionName == eCSSKeyword_inset) {
|
||||
MOZ_ASSERT(!basicShape, "did not expect value");
|
||||
basicShape = new nsStyleBasicShape(nsStyleBasicShape::eInset);
|
||||
MOZ_ASSERT(shapeFunction->Count() == 6,
|
||||
"inset function has wrong number of arguments");
|
||||
MOZ_ASSERT(shapeFunction->Item(1).GetUnit() != eCSSUnit_Null,
|
||||
"no shape arguments defined");
|
||||
const int32_t mask = SETCOORD_PERCENT | SETCOORD_LENGTH |
|
||||
SETCOORD_STORE_CALC;
|
||||
nsTArray<nsStyleCoord>& coords = basicShape->Coordinates();
|
||||
for (size_t j = 1; j <= 4; ++j) {
|
||||
const nsCSSValue& val = shapeFunction->Item(j);
|
||||
nsStyleCoord inset;
|
||||
// Fill missing values to get 4 at the end.
|
||||
if (val.GetUnit() == eCSSUnit_Null) {
|
||||
if (j == 4) {
|
||||
inset = coords[1];
|
||||
} else {
|
||||
MOZ_ASSERT(j != 1, "first argument not specified");
|
||||
inset = coords[0];
|
||||
}
|
||||
} else {
|
||||
DebugOnly<bool> didSetInset = SetCoord(val, inset,
|
||||
nsStyleCoord(), mask,
|
||||
aStyleContext, aPresContext,
|
||||
aConditions);
|
||||
MOZ_ASSERT(didSetInset, "unexpected inset unit");
|
||||
}
|
||||
coords.AppendElement(inset);
|
||||
}
|
||||
|
||||
nsStyleCorners& insetRadius = basicShape->GetRadius();
|
||||
if (shapeFunction->Item(5).GetUnit() == eCSSUnit_Array) {
|
||||
nsCSSValue::Array* radiiArray = shapeFunction->Item(5).GetArrayValue();
|
||||
NS_FOR_CSS_FULL_CORNERS(corner) {
|
||||
int cx = NS_FULL_TO_HALF_CORNER(corner, false);
|
||||
int cy = NS_FULL_TO_HALF_CORNER(corner, true);
|
||||
const nsCSSValue& radius = radiiArray->Item(corner);
|
||||
nsStyleCoord coordX, coordY;
|
||||
DebugOnly<bool> didSetRadii = SetPairCoords(radius, coordX, coordY,
|
||||
nsStyleCoord(),
|
||||
nsStyleCoord(), mask,
|
||||
aStyleContext,
|
||||
aPresContext,
|
||||
aConditions);
|
||||
MOZ_ASSERT(didSetRadii, "unexpected radius unit");
|
||||
insetRadius.Set(cx, coordX);
|
||||
insetRadius.Set(cy, coordY);
|
||||
}
|
||||
} else {
|
||||
MOZ_ASSERT(shapeFunction->Item(5).GetUnit() == eCSSUnit_Null,
|
||||
"unexpected value");
|
||||
// Initialize border-radius
|
||||
nsStyleCoord zero;
|
||||
zero.SetCoordValue(0);
|
||||
NS_FOR_CSS_HALF_CORNERS(j) {
|
||||
insetRadius.Set(j, zero);
|
||||
}
|
||||
}
|
||||
} else {
|
||||
NS_NOTREACHED("unexpected basic shape function");
|
||||
return;
|
||||
}
|
||||
basicShape = GetStyleBasicShapeFromCSSValue(array->Item(i), aStyleContext,
|
||||
aPresContext, aConditions);
|
||||
} else {
|
||||
NS_NOTREACHED("unexpected value");
|
||||
return;
|
||||
|
||||
@ -788,6 +788,11 @@ protected:
|
||||
nsStyleContext* aContext,
|
||||
bool aIsBoxShadow,
|
||||
mozilla::RuleNodeCacheConditions& aConditions);
|
||||
already_AddRefed<nsStyleBasicShape>
|
||||
GetStyleBasicShapeFromCSSValue(const nsCSSValue& aValue,
|
||||
nsStyleContext* aStyleContext,
|
||||
nsPresContext* aPresContext,
|
||||
mozilla::RuleNodeCacheConditions& aConditions);
|
||||
bool SetStyleFilterToCSSValue(nsStyleFilter* aStyleFilter,
|
||||
const nsCSSValue& aValue,
|
||||
nsStyleContext* aStyleContext,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user