gecko-dev/dom/svg/nsSVGBoolean.h

82 строки
2.3 KiB
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef __NS_SVGBOOLEAN_H__
#define __NS_SVGBOOLEAN_H__
#include "nsCOMPtr.h"
#include "nsError.h"
#include "nsISMILAttr.h"
#include "mozilla/Attributes.h"
class nsIAtom;
class nsSMILValue;
class nsSVGElement;
namespace mozilla {
namespace dom {
class SVGAnimationElement;
class SVGAnimatedBoolean;
}
}
class nsSVGBoolean
{
public:
void Init(uint8_t aAttrEnum = 0xff, bool aValue = false) {
mAnimVal = mBaseVal = aValue;
mAttrEnum = aAttrEnum;
mIsAnimated = false;
}
nsresult SetBaseValueAtom(const nsIAtom* aValue, nsSVGElement *aSVGElement);
nsIAtom* GetBaseValueAtom() const;
void SetBaseValue(bool aValue, nsSVGElement *aSVGElement);
bool GetBaseValue() const
{ return mBaseVal; }
void SetAnimValue(bool aValue, nsSVGElement *aSVGElement);
bool GetAnimValue() const
{ return mAnimVal; }
already_AddRefed<mozilla::dom::SVGAnimatedBoolean>
ToDOMAnimatedBoolean(nsSVGElement* aSVGElement);
// Returns a new nsISMILAttr object that the caller must delete
nsISMILAttr* ToSMILAttr(nsSVGElement* aSVGElement);
private:
bool mAnimVal;
bool mBaseVal;
bool mIsAnimated;
uint8_t mAttrEnum; // element specified tracking for attribute
public:
struct SMILBool : public nsISMILAttr
{
public:
SMILBool(nsSVGBoolean* aVal, nsSVGElement* aSVGElement)
: mVal(aVal), mSVGElement(aSVGElement) {}
// These will stay alive because a nsISMILAttr only lives as long
// as the Compositing step, and DOM elements don't get a chance to
// die during that.
nsSVGBoolean* mVal;
nsSVGElement* mSVGElement;
// nsISMILAttr methods
virtual nsresult ValueFromString(const nsAString& aStr,
const mozilla::dom::SVGAnimationElement* aSrcElement,
nsSMILValue& aValue,
bool& aPreventCachingOfSandwich) const override;
virtual nsSMILValue GetBaseValue() const override;
virtual void ClearAnimValue() override;
virtual nsresult SetAnimValue(const nsSMILValue& aValue) override;
};
};
#endif //__NS_SVGBOOLEAN_H__