зеркало из https://github.com/mozilla/gecko-dev.git
57 строки
1.9 KiB
C++
57 строки
1.9 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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#include "SMILNullType.h"
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#include "mozilla/SMILValue.h"
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#include "nsDebug.h"
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namespace mozilla {
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/*static*/ SMILNullType* SMILNullType::Singleton() {
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static SMILNullType sSingleton;
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return &sSingleton;
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}
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nsresult SMILNullType::Assign(SMILValue& aDest, const SMILValue& aSrc) const {
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MOZ_ASSERT(aDest.mType == aSrc.mType, "Incompatible SMIL types");
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MOZ_ASSERT(aSrc.mType == this, "Unexpected source type");
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aDest.mU = aSrc.mU;
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aDest.mType = Singleton();
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return NS_OK;
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}
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bool SMILNullType::IsEqual(const SMILValue& aLeft,
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const SMILValue& aRight) const {
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MOZ_ASSERT(aLeft.mType == aRight.mType, "Incompatible SMIL types");
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MOZ_ASSERT(aLeft.mType == this, "Unexpected type for SMIL value");
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return true; // All null-typed values are equivalent.
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}
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nsresult SMILNullType::Add(SMILValue& aDest, const SMILValue& aValueToAdd,
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uint32_t aCount) const {
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MOZ_ASSERT_UNREACHABLE("Adding NULL type");
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return NS_ERROR_FAILURE;
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}
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nsresult SMILNullType::ComputeDistance(const SMILValue& aFrom,
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const SMILValue& aTo,
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double& aDistance) const {
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MOZ_ASSERT_UNREACHABLE("Computing distance for NULL type");
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return NS_ERROR_FAILURE;
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}
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nsresult SMILNullType::Interpolate(const SMILValue& aStartVal,
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const SMILValue& aEndVal,
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double aUnitDistance,
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SMILValue& aResult) const {
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MOZ_ASSERT_UNREACHABLE("Interpolating NULL type");
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return NS_ERROR_FAILURE;
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}
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} // namespace mozilla
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