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/* -*- Mode: C++; tab-width: 8; 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_SMILSETANIMATIONFUNCTION_H_
#define NS_SMILSETANIMATIONFUNCTION_H_
#include "mozilla/Attributes.h"
#include "nsSMILAnimationFunction.h"
//----------------------------------------------------------------------
// nsSMILSetAnimationFunction
//
// Subclass of nsSMILAnimationFunction that limits the behaviour to that offered
// by a <set> element.
//
class nsSMILSetAnimationFunction : public nsSMILAnimationFunction
{
public:
/*
* Sets animation-specific attributes (or marks them dirty, in the case
* of from/to/by/values).
*
* @param aAttribute The attribute being set
* @param aValue The updated value of the attribute.
* @param aResult The nsAttrValue object that may be used for storing the
* parsed result.
* @param aParseResult Outparam used for reporting parse errors. Will be set
* to NS_OK if everything succeeds.
* @returns true if aAttribute is a recognized animation-related
* attribute; false otherwise.
*/
virtual bool SetAttr(nsIAtom* aAttribute, const nsAString& aValue,
nsAttrValue& aResult, nsresult* aParseResult = nullptr) override;
/*
* Unsets the given attribute.
*
* @returns true if aAttribute is a recognized animation-related
* attribute; false otherwise.
*/
virtual bool UnsetAttr(nsIAtom* aAttribute) override;
protected:
// Although <set> animation might look like to-animation, unlike to-animation,
// it never interpolates values.
// Returning false here will mean this animation function gets treated as
// a single-valued function and no interpolation will be attempted.
virtual bool IsToAnimation() const override {
return false;
}
// <set> applies the exact same value across the simple duration.
virtual bool IsValueFixedForSimpleDuration() const override {
return true;
}
virtual bool HasAttr(nsIAtom* aAttName) const override;
virtual const nsAttrValue* GetAttr(nsIAtom* aAttName) const override;
virtual bool GetAttr(nsIAtom* aAttName,
nsAString& aResult) const override;
virtual bool WillReplace() const override;
bool IsDisallowedAttribute(const nsIAtom* aAttribute) const;
};
#endif // NS_SMILSETANIMATIONFUNCTION_H_
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