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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 DOM_SVG_SVGANIMATEDSTRING_H_
#define DOM_SVG_SVGANIMATEDSTRING_H_
#include "nsError.h"
#include "mozilla/Attributes.h"
#include "mozilla/SMILAttr.h"
#include "mozilla/SVGAnimatedClassOrString.h"
#include "mozilla/dom/SVGElement.h"
#include "mozilla/UniquePtr.h"
namespace mozilla {
class SMILValue;
namespace dom {
class SVGElement;
}
class SVGAnimatedString final : public SVGAnimatedClassOrString {
public:
using SVGElement = dom::SVGElement;
void Init(uint8_t aAttrEnum) {
mAnimVal = nullptr;
mAttrEnum = aAttrEnum;
mIsBaseSet = false;
}
void SetBaseValue(const nsAString& aValue, SVGElement* aSVGElement,
bool aDoSetAttr) override;
void GetBaseValue(nsAString& aValue,
const SVGElement* aSVGElement) const override {
aSVGElement->GetStringBaseValue(mAttrEnum, aValue);
}
void SetAnimValue(const nsAString& aValue, SVGElement* aSVGElement);
void GetAnimValue(nsAString& aResult,
const SVGElement* aSVGElement) const override;
// Returns true if the animated value of this string has been explicitly
// set (either by animation, or by taking on the base value which has been
// explicitly set by markup or a DOM call), false otherwise.
// If this returns false, the animated value is still valid, that is,
// usable, and represents the default base value of the attribute.
bool IsExplicitlySet() const { return !!mAnimVal || mIsBaseSet; }
UniquePtr<SMILAttr> ToSMILAttr(SVGElement* aSVGElement);
SVGAnimatedString() = default;
SVGAnimatedString& operator=(const SVGAnimatedString& aOther) {
mAttrEnum = aOther.mAttrEnum;
mIsBaseSet = aOther.mIsBaseSet;
if (aOther.mAnimVal) {
mAnimVal = MakeUnique<nsString>(*aOther.mAnimVal);
}
return *this;
}
SVGAnimatedString(const SVGAnimatedString& aOther) : SVGAnimatedString() {
*this = aOther;
}
private:
// FIXME: Should probably use void string rather than UniquePtr<nsString>.
UniquePtr<nsString> mAnimVal;
uint8_t mAttrEnum = 0; // element specified tracking for attribute
bool mIsBaseSet = false;
public:
struct SMILString : public SMILAttr {
public:
SMILString(SVGAnimatedString* aVal, SVGElement* aSVGElement)
: mVal(aVal), mSVGElement(aSVGElement) {}
// These will stay alive because a SMILAttr only lives as long
// as the Compositing step, and DOM elements don't get a chance to
// die during that.
SVGAnimatedString* mVal;
SVGElement* mSVGElement;
// SMILAttr methods
nsresult ValueFromString(const nsAString& aStr,
const dom::SVGAnimationElement* aSrcElement,
SMILValue& aValue,
bool& aPreventCachingOfSandwich) const override;
SMILValue GetBaseValue() const override;
void ClearAnimValue() override;
nsresult SetAnimValue(const SMILValue& aValue) override;
};
};
} // namespace mozilla
#endif // DOM_SVG_SVGANIMATEDSTRING_H_
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