45 lines
1.5 KiB
C++
45 lines
1.5 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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#include "LayerAnimationUtils.h"
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#include "mozilla/ComputedTimingFunction.h" // For ComputedTimingFunction
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#include "mozilla/layers/LayersMessages.h" // For TimingFunction etc.
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namespace mozilla {
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namespace layers {
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/* static */ Maybe<ComputedTimingFunction>
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AnimationUtils::TimingFunctionToComputedTimingFunction(
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const TimingFunction& aTimingFunction)
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{
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switch (aTimingFunction.type()) {
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case TimingFunction::Tnull_t:
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return Nothing();
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case TimingFunction::TCubicBezierFunction: {
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ComputedTimingFunction result;
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CubicBezierFunction cbf = aTimingFunction.get_CubicBezierFunction();
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result.Init(nsTimingFunction(cbf.x1(), cbf.y1(), cbf.x2(), cbf.y2()));
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return Some(result);
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}
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case TimingFunction::TStepFunction: {
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StepFunction sf = aTimingFunction.get_StepFunction();
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nsTimingFunction::Type type = sf.type() == 1 ?
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nsTimingFunction::Type::StepStart :
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nsTimingFunction::Type::StepEnd;
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ComputedTimingFunction result;
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result.Init(nsTimingFunction(type, sf.steps()));
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return Some(result);
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}
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default:
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MOZ_ASSERT_UNREACHABLE(
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"Function must be null, bezier or step");
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break;
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}
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return Nothing();
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}
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} // namespace layers
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} // namespace mozilla
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