52 lines
2 KiB
C++
52 lines
2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 DOM_SMIL_SMILSETANIMATIONFUNCTION_H_
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#define DOM_SMIL_SMILSETANIMATIONFUNCTION_H_
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#include "mozilla/Attributes.h"
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#include "mozilla/SMILAnimationFunction.h"
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namespace mozilla {
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//----------------------------------------------------------------------
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// SMILSetAnimationFunction
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//
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// Subclass of SMILAnimationFunction that limits the behaviour to that offered
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// by a <set> element.
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//
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class SMILSetAnimationFunction : public SMILAnimationFunction {
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protected:
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bool IsDisallowedAttribute(const nsAtom* aAttribute) const override {
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//
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// A <set> element is similar to <animate> but lacks:
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// AnimationValue.attrib(calcMode, values, keyTimes, keySplines, from, to,
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// by) -- BUT has 'to'
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// AnimationAddition.attrib(additive, accumulate)
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//
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return aAttribute == nsGkAtoms::calcMode ||
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aAttribute == nsGkAtoms::values ||
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aAttribute == nsGkAtoms::keyTimes ||
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aAttribute == nsGkAtoms::keySplines ||
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aAttribute == nsGkAtoms::from || aAttribute == nsGkAtoms::by ||
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aAttribute == nsGkAtoms::additive ||
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aAttribute == nsGkAtoms::accumulate;
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}
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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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bool IsToAnimation() const override { return false; }
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// <set> applies the exact same value across the simple duration.
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bool IsValueFixedForSimpleDuration() const override { return true; }
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bool WillReplace() const override { return true; }
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};
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} // namespace mozilla
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#endif // DOM_SMIL_SMILSETANIMATIONFUNCTION_H_
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