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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "config.h"
#include "core/animation/interpolation/DeferredLegacyStyleInterpolation.h"
#include "core/animation/interpolation/LegacyStyleInterpolation.h"
#include "core/css/CSSImageValue.h"
#include "core/css/CSSPrimitiveValue.h"
#include "core/css/CSSSVGDocumentValue.h"
#include "core/css/CSSShadowValue.h"
#include "core/css/CSSValueList.h"
#include "core/css/Pair.h"
#include "core/css/Rect.h"
#include "core/css/resolver/StyleResolver.h"
#include "core/css/resolver/StyleResolverState.h"
namespace WebCore {
void DeferredLegacyStyleInterpolation::apply(StyleResolverState& state) const
{
RefPtrWillBeRawPtr<LegacyStyleInterpolation> innerInterpolation = LegacyStyleInterpolation::create(
StyleResolver::createAnimatableValueSnapshot(state, m_id, *m_startCSSValue),
StyleResolver::createAnimatableValueSnapshot(state, m_id, *m_endCSSValue),
m_id);
innerInterpolation->interpolate(m_cachedIteration, m_cachedFraction);
innerInterpolation->apply(state);
}
bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSValue& value)
{
switch (value.cssValueType()) {
case CSSValue::CSS_INHERIT:
return true;
case CSSValue::CSS_PRIMITIVE_VALUE:
return interpolationRequiresStyleResolve(toCSSPrimitiveValue(value));
case CSSValue::CSS_VALUE_LIST:
return interpolationRequiresStyleResolve(toCSSValueList(value));
case CSSValue::CSS_CUSTOM:
if (value.isImageValue())
return interpolationRequiresStyleResolve(toCSSImageValue(value));
if (value.isShadowValue())
return interpolationRequiresStyleResolve(toCSSShadowValue(value));
if (value.isSVGDocumentValue())
return interpolationRequiresStyleResolve(toCSSSVGDocumentValue(value));
// FIXME: consider other custom types.
return true;
case CSSValue::CSS_INITIAL:
// FIXME: should not require resolving styles for initial.
return true;
default:
ASSERT_NOT_REACHED();
return true;
}
}
bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSPrimitiveValue& primitiveValue)
{
// FIXME: consider other types.
if (primitiveValue.isNumber() || primitiveValue.isPercentage() || primitiveValue.isAngle() || primitiveValue.isRGBColor() || primitiveValue.isURI())
return false;
if (primitiveValue.isLength())
return primitiveValue.isFontRelativeLength() || primitiveValue.isViewportPercentageLength();
if (primitiveValue.isCalculated()) {
CSSLengthArray lengthArray(CSSPrimitiveValue::LengthUnitTypeCount);
primitiveValue.accumulateLengthArray(lengthArray);
return lengthArray[CSSPrimitiveValue::UnitTypeFontSize] != 0
|| lengthArray[CSSPrimitiveValue::UnitTypeFontXSize] != 0
|| lengthArray[CSSPrimitiveValue::UnitTypeRootFontSize] != 0
|| lengthArray[CSSPrimitiveValue::UnitTypeZeroCharacterWidth] != 0
|| lengthArray[CSSPrimitiveValue::UnitTypeViewportWidth] != 0
|| lengthArray[CSSPrimitiveValue::UnitTypeViewportHeight] != 0
|| lengthArray[CSSPrimitiveValue::UnitTypeViewportMin] != 0
|| lengthArray[CSSPrimitiveValue::UnitTypeViewportMax] != 0;
}
if (Pair* pair = primitiveValue.getPairValue()) {
return interpolationRequiresStyleResolve(*pair->first())
|| interpolationRequiresStyleResolve(*pair->second());
}
if (Rect* rect = primitiveValue.getRectValue()) {
return interpolationRequiresStyleResolve(*rect->top())
|| interpolationRequiresStyleResolve(*rect->right())
|| interpolationRequiresStyleResolve(*rect->bottom())
|| interpolationRequiresStyleResolve(*rect->left());
}
if (Quad* quad = primitiveValue.getQuadValue()) {
return interpolationRequiresStyleResolve(*quad->top())
|| interpolationRequiresStyleResolve(*quad->right())
|| interpolationRequiresStyleResolve(*quad->bottom())
|| interpolationRequiresStyleResolve(*quad->left());
}
if (primitiveValue.isShape())
return interpolationRequiresStyleResolve(*primitiveValue.getShapeValue());
CSSValueID id = primitiveValue.getValueID();
bool isColor = ((id >= CSSValueAqua && id <= CSSValueTransparent)
|| (id >= CSSValueAliceblue && id <= CSSValueYellowgreen)
|| id == CSSValueGrey);
return (id != CSSValueNone) && !isColor;
}
bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSImageValue& imageValue)
{
return false;
}
bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSShadowValue& shadowValue)
{
return (shadowValue.x && interpolationRequiresStyleResolve(*shadowValue.x))
|| (shadowValue.y && interpolationRequiresStyleResolve(*shadowValue.y))
|| (shadowValue.blur && interpolationRequiresStyleResolve(*shadowValue.blur))
|| (shadowValue.spread && interpolationRequiresStyleResolve(*shadowValue.spread))
|| (shadowValue.style && interpolationRequiresStyleResolve(*shadowValue.style))
|| (shadowValue.color && interpolationRequiresStyleResolve(*shadowValue.color));
}
bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSSVGDocumentValue& documentValue)
{
return true;
}
bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSValueList& valueList)
{
size_t length = valueList.length();
for (size_t index = 0; index < length; ++index) {
if (interpolationRequiresStyleResolve(*valueList.item(index)))
return true;
}
return false;
}
bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSBasicShape& shape)
{
// FIXME: Should determine the specific shape, and inspect the members.
return false;
}
void DeferredLegacyStyleInterpolation::trace(Visitor* visitor)
{
visitor->trace(m_startCSSValue);
visitor->trace(m_endCSSValue);
StyleInterpolation::trace(visitor);
}
}
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