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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_SMIL_SMILSETANIMATIONFUNCTION_H_
#define DOM_SMIL_SMILSETANIMATIONFUNCTION_H_
#include "mozilla/SMILAnimationFunction.h"
namespace mozilla {
//----------------------------------------------------------------------
// SMILSetAnimationFunction
//
// Subclass of SMILAnimationFunction that limits the behaviour to that offered
// by a <set> element.
//
class SMILSetAnimationFunction : public SMILAnimationFunction {
protected:
bool IsDisallowedAttribute(const nsAtom* aAttribute) const override {
//
// A <set> element is similar to <animate> but lacks:
// AnimationValue.attrib(calcMode, values, keyTimes, keySplines, from, to,
// by) -- BUT has 'to'
// AnimationAddition.attrib(additive, accumulate)
//
return aAttribute == nsGkAtoms::calcMode ||
aAttribute == nsGkAtoms::values ||
aAttribute == nsGkAtoms::keyTimes ||
aAttribute == nsGkAtoms::keySplines ||
aAttribute == nsGkAtoms::from || aAttribute == nsGkAtoms::by ||
aAttribute == nsGkAtoms::additive ||
aAttribute == nsGkAtoms::accumulate;
}
// 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.
bool IsToAnimation() const override { return false; }
// <set> applies the exact same value across the simple duration.
bool IsValueFixedForSimpleDuration() const override { return true; }
bool WillReplace() const override { return true; }
};
} // namespace mozilla
#endif // DOM_SMIL_SMILSETANIMATIONFUNCTION_H_
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