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// Copyright 2016 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.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSSOM_CSS_SKEW_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSSOM_CSS_SKEW_H_
#include "base/macros.h"
#include "third_party/blink/renderer/core/css/cssom/css_numeric_value.h"
#include "third_party/blink/renderer/core/css/cssom/css_transform_component.h"
namespace blink {
class DOMMatrix;
class ExceptionState;
// Represents a skew value in a CSSTransformValue used for properties like
// "transform".
// See CSSSkew.idl for more information about this class.
class CORE_EXPORT CSSSkew final : public CSSTransformComponent {
DEFINE_WRAPPERTYPEINFO();
public:
// Constructor defined in the IDL.
static CSSSkew* Create(CSSNumericValue*, CSSNumericValue*, ExceptionState&);
static CSSSkew* Create(CSSNumericValue* ax, CSSNumericValue* ay) {
return MakeGarbageCollected<CSSSkew>(ax, ay);
}
// Internal ways of creating CSSSkew.
static CSSSkew* FromCSSValue(const CSSFunctionValue&);
CSSSkew(CSSNumericValue* ax, CSSNumericValue* ay);
// Getters and setters for the ax and ay attributes defined in the IDL.
CSSNumericValue* ax() { return ax_.Get(); }
CSSNumericValue* ay() { return ay_.Get(); }
void setAx(CSSNumericValue*, ExceptionState&);
void setAy(CSSNumericValue*, ExceptionState&);
// From CSSTransformComponent
// Setting is2D for CSSSkew does nothing.
// https://drafts.css-houdini.org/css-typed-om/#dom-cssskew-is2d
void setIs2D(bool is2D) final {}
DOMMatrix* toMatrix(ExceptionState&) const final;
// Internal methods - from CSSTransformComponent.
TransformComponentType GetType() const override { return kSkewType; }
const CSSFunctionValue* ToCSSValue() const override;
void Trace(blink::Visitor* visitor) override {
visitor->Trace(ax_);
visitor->Trace(ay_);
CSSTransformComponent::Trace(visitor);
}
private:
Member<CSSNumericValue> ax_;
Member<CSSNumericValue> ay_;
DISALLOW_COPY_AND_ASSIGN(CSSSkew);
};
} // namespace blink
#endif
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