diff options
Diffstat (limited to 'dom/smil/SMILStringType.cpp')
-rw-r--r-- | dom/smil/SMILStringType.cpp | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/dom/smil/SMILStringType.cpp b/dom/smil/SMILStringType.cpp new file mode 100644 index 0000000000..a79a97eb2c --- /dev/null +++ b/dom/smil/SMILStringType.cpp @@ -0,0 +1,75 @@ +/* -*- 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::Init(SMILValue& aValue) const { + MOZ_ASSERT(aValue.IsNull(), "Unexpected value type"); + aValue.mU.mPtr = new nsString(); + aValue.mType = this; +} + +void SMILStringType::Destroy(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 |