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This CL generated by |sed -i '/sky\/engine\/config.h/d'| and a manual sweep to catch some oddballs. TBR=eseidel@chromium.org Review URL: https://codereview.chromium.org/1206763002.
104 lines
3.9 KiB
C++
104 lines
3.9 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "sky/engine/core/animation/LengthStyleInterpolation.h"
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#include "sky/engine/core/css/CSSCalculationValue.h"
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#include "sky/engine/core/css/resolver/StyleBuilder.h"
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namespace blink {
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bool LengthStyleInterpolation::canCreateFrom(const CSSValue& value)
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{
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if (value.isPrimitiveValue()) {
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const CSSPrimitiveValue& primitiveValue = blink::toCSSPrimitiveValue(value);
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if (primitiveValue.cssCalcValue())
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return true;
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CSSPrimitiveValue::LengthUnitType type;
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// Only returns true if the type is a primitive length unit.
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return CSSPrimitiveValue::unitTypeToLengthUnitType(primitiveValue.primitiveType(), type);
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}
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return value.isCalcValue();
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}
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PassOwnPtr<InterpolableValue> LengthStyleInterpolation::lengthToInterpolableValue(CSSValue* value)
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{
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OwnPtr<InterpolableList> result = InterpolableList::create(CSSPrimitiveValue::LengthUnitTypeCount);
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CSSPrimitiveValue* primitive = toCSSPrimitiveValue(value);
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CSSLengthArray array;
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for (size_t i = 0; i < CSSPrimitiveValue::LengthUnitTypeCount; i++)
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array.append(0);
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primitive->accumulateLengthArray(array);
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for (size_t i = 0; i < CSSPrimitiveValue::LengthUnitTypeCount; i++)
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result->set(i, InterpolableNumber::create(array.at(i)));
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return result.release();
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}
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namespace {
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static CSSPrimitiveValue::UnitType toUnitType(int lengthUnitType)
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{
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return static_cast<CSSPrimitiveValue::UnitType>(CSSPrimitiveValue::lengthUnitTypeToUnitType(static_cast<CSSPrimitiveValue::LengthUnitType>(lengthUnitType)));
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}
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static PassRefPtr<CSSCalcExpressionNode> constructCalcExpression(PassRefPtr<CSSCalcExpressionNode> previous, InterpolableList* list, size_t position)
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{
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while (position != CSSPrimitiveValue::LengthUnitTypeCount) {
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const InterpolableNumber *subValue = toInterpolableNumber(list->get(position));
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if (subValue->value()) {
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RefPtr<CSSCalcExpressionNode> next;
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if (previous)
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next = CSSCalcValue::createExpressionNode(previous, CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(subValue->value(), toUnitType(position))), CalcAdd);
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else
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next = CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(subValue->value(), toUnitType(position)));
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return constructCalcExpression(next, list, position + 1);
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}
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position++;
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}
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return previous;
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}
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}
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PassRefPtr<CSSValue> LengthStyleInterpolation::interpolableValueToLength(InterpolableValue* value, ValueRange range)
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{
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InterpolableList* listValue = toInterpolableList(value);
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unsigned unitCount = 0;
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for (size_t i = 0; i < CSSPrimitiveValue::LengthUnitTypeCount; i++) {
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const InterpolableNumber* subValue = toInterpolableNumber(listValue->get(i));
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if (subValue->value()) {
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unitCount++;
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}
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}
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switch (unitCount) {
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case 0:
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return CSSPrimitiveValue::create(0, CSSPrimitiveValue::CSS_PX);
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case 1:
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for (size_t i = 0; i < CSSPrimitiveValue::LengthUnitTypeCount; i++) {
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const InterpolableNumber* subValue = toInterpolableNumber(listValue->get(i));
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double value = subValue->value();
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if (value) {
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if (range == ValueRangeNonNegative && value < 0)
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value = 0;
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return CSSPrimitiveValue::create(value, toUnitType(i));
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}
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}
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ASSERT_NOT_REACHED();
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default:
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return CSSPrimitiveValue::create(CSSCalcValue::create(constructCalcExpression(nullptr, listValue, 0), range));
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}
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}
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void LengthStyleInterpolation::apply(StyleResolverState& state) const
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{
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StyleBuilder::applyProperty(m_id, state, interpolableValueToLength(m_cachedValue.get(), m_range).get());
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}
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}
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