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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/. */
#include "SMILStringType.h"
#include "mozilla/SMILValue.h"
#include "nsDebug.h"
#include "nsString.h"
namespace mozilla {
void SMILStringType::InitValue(SMILValue& aValue) const {
MOZ_ASSERT(aValue.IsNull(), "Unexpected value type");
aValue.mU.mPtr = new nsString();
aValue.mType = this;
}
void SMILStringType::DestroyValue(SMILValue& aValue) const {
MOZ_ASSERT(aValue.mType == this, "Unexpected SMIL value");
delete static_cast<nsAString*>(aValue.mU.mPtr);
aValue.mU.mPtr = nullptr;
aValue.mType = SMILNullType::Singleton();
}
nsresult SMILStringType::Assign(SMILValue& aDest, const SMILValue& aSrc) const {
MOZ_ASSERT(aDest.mType == aSrc.mType, "Incompatible SMIL types");
MOZ_ASSERT(aDest.mType == this, "Unexpected SMIL value");
const nsAString* src = static_cast<const nsAString*>(aSrc.mU.mPtr);
nsAString* dst = static_cast<nsAString*>(aDest.mU.mPtr);
*dst = *src;
return NS_OK;
}
bool SMILStringType::IsEqual(const SMILValue& aLeft,
const SMILValue& aRight) const {
MOZ_ASSERT(aLeft.mType == aRight.mType, "Incompatible SMIL types");
MOZ_ASSERT(aLeft.mType == this, "Unexpected type for SMIL value");
const nsAString* leftString = static_cast<const nsAString*>(aLeft.mU.mPtr);
const nsAString* rightString = static_cast<nsAString*>(aRight.mU.mPtr);
return *leftString == *rightString;
}
nsresult SMILStringType::Add(SMILValue& aDest, const SMILValue& aValueToAdd,
uint32_t aCount) const {
MOZ_ASSERT(aValueToAdd.mType == aDest.mType, "Trying to add invalid types");
MOZ_ASSERT(aValueToAdd.mType == this, "Unexpected source type");
return NS_ERROR_FAILURE; // string values can't be added to each other
}
nsresult SMILStringType::ComputeDistance(const SMILValue& aFrom,
const SMILValue& aTo,
double& aDistance) const {
MOZ_ASSERT(aFrom.mType == aTo.mType, "Trying to compare different types");
MOZ_ASSERT(aFrom.mType == this, "Unexpected source type");
return NS_ERROR_FAILURE; // there is no concept of distance between string
// values
}
nsresult SMILStringType::Interpolate(const SMILValue& aStartVal,
const SMILValue& aEndVal,
double aUnitDistance,
SMILValue& aResult) const {
MOZ_ASSERT(aStartVal.mType == aEndVal.mType,
"Trying to interpolate different types");
MOZ_ASSERT(aStartVal.mType == this, "Unexpected types for interpolation");
MOZ_ASSERT(aResult.mType == this, "Unexpected result type");
return NS_ERROR_FAILURE; // string values do not interpolate
}
} // namespace mozilla
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