68 lines
2.6 KiB
C++
68 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef NS_SMILSETANIMATIONFUNCTION_H_
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#define NS_SMILSETANIMATIONFUNCTION_H_
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#include "mozilla/Attributes.h"
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#include "nsSMILAnimationFunction.h"
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//----------------------------------------------------------------------
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// nsSMILSetAnimationFunction
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//
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// Subclass of nsSMILAnimationFunction that limits the behaviour to that offered
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// by a <set> element.
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//
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class nsSMILSetAnimationFunction : public nsSMILAnimationFunction
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{
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public:
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/*
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* Sets animation-specific attributes (or marks them dirty, in the case
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* of from/to/by/values).
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*
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* @param aAttribute The attribute being set
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* @param aValue The updated value of the attribute.
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* @param aResult The nsAttrValue object that may be used for storing the
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* parsed result.
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* @param aParseResult Outparam used for reporting parse errors. Will be set
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* to NS_OK if everything succeeds.
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* @returns true if aAttribute is a recognized animation-related
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* attribute; false otherwise.
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*/
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virtual bool SetAttr(nsIAtom* aAttribute, const nsAString& aValue,
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nsAttrValue& aResult, nsresult* aParseResult = nullptr) override;
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/*
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* Unsets the given attribute.
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*
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* @returns true if aAttribute is a recognized animation-related
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* attribute; false otherwise.
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*/
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virtual bool UnsetAttr(nsIAtom* aAttribute) override;
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protected:
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// Although <set> animation might look like to-animation, unlike to-animation,
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// it never interpolates values.
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// Returning false here will mean this animation function gets treated as
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// a single-valued function and no interpolation will be attempted.
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virtual bool IsToAnimation() const override {
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return false;
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}
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// <set> applies the exact same value across the simple duration.
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virtual bool IsValueFixedForSimpleDuration() const override {
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return true;
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}
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virtual bool HasAttr(nsIAtom* aAttName) const override;
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virtual const nsAttrValue* GetAttr(nsIAtom* aAttName) const override;
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virtual bool GetAttr(nsIAtom* aAttName,
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nsAString& aResult) const override;
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virtual bool WillReplace() const override;
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bool IsDisallowedAttribute(const nsIAtom* aAttribute) const;
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};
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#endif // NS_SMILSETANIMATIONFUNCTION_H_
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