1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/smil/SMILStringType.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,90 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "SMILStringType.h"
1.10 +#include "nsSMILValue.h"
1.11 +#include "nsDebug.h"
1.12 +#include "nsString.h"
1.13 +
1.14 +namespace mozilla {
1.15 +
1.16 +void
1.17 +SMILStringType::Init(nsSMILValue& aValue) const
1.18 +{
1.19 + NS_PRECONDITION(aValue.IsNull(), "Unexpected value type");
1.20 + aValue.mU.mPtr = new nsString();
1.21 + aValue.mType = this;
1.22 +}
1.23 +
1.24 +void
1.25 +SMILStringType::Destroy(nsSMILValue& aValue) const
1.26 +{
1.27 + NS_PRECONDITION(aValue.mType == this, "Unexpected SMIL value");
1.28 + delete static_cast<nsAString*>(aValue.mU.mPtr);
1.29 + aValue.mU.mPtr = nullptr;
1.30 + aValue.mType = nsSMILNullType::Singleton();
1.31 +}
1.32 +
1.33 +nsresult
1.34 +SMILStringType::Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const
1.35 +{
1.36 + NS_PRECONDITION(aDest.mType == aSrc.mType, "Incompatible SMIL types");
1.37 + NS_PRECONDITION(aDest.mType == this, "Unexpected SMIL value");
1.38 +
1.39 + const nsAString* src = static_cast<const nsAString*>(aSrc.mU.mPtr);
1.40 + nsAString* dst = static_cast<nsAString*>(aDest.mU.mPtr);
1.41 + *dst = *src;
1.42 + return NS_OK;
1.43 +}
1.44 +
1.45 +bool
1.46 +SMILStringType::IsEqual(const nsSMILValue& aLeft,
1.47 + const nsSMILValue& aRight) const
1.48 +{
1.49 + NS_PRECONDITION(aLeft.mType == aRight.mType, "Incompatible SMIL types");
1.50 + NS_PRECONDITION(aLeft.mType == this, "Unexpected type for SMIL value");
1.51 +
1.52 + const nsAString* leftString =
1.53 + static_cast<const nsAString*>(aLeft.mU.mPtr);
1.54 + const nsAString* rightString =
1.55 + static_cast<nsAString*>(aRight.mU.mPtr);
1.56 + return *leftString == *rightString;
1.57 +}
1.58 +
1.59 +nsresult
1.60 +SMILStringType::Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd,
1.61 + uint32_t aCount) const
1.62 +{
1.63 + NS_PRECONDITION(aValueToAdd.mType == aDest.mType,
1.64 + "Trying to add invalid types");
1.65 + NS_PRECONDITION(aValueToAdd.mType == this, "Unexpected source type");
1.66 + return NS_ERROR_FAILURE; // string values can't be added to each other
1.67 +}
1.68 +
1.69 +nsresult
1.70 +SMILStringType::ComputeDistance(const nsSMILValue& aFrom,
1.71 + const nsSMILValue& aTo,
1.72 + double& aDistance) const
1.73 +{
1.74 + NS_PRECONDITION(aFrom.mType == aTo.mType,"Trying to compare different types");
1.75 + NS_PRECONDITION(aFrom.mType == this, "Unexpected source type");
1.76 + return NS_ERROR_FAILURE; // there is no concept of distance between string values
1.77 +}
1.78 +
1.79 +nsresult
1.80 +SMILStringType::Interpolate(const nsSMILValue& aStartVal,
1.81 + const nsSMILValue& aEndVal,
1.82 + double aUnitDistance,
1.83 + nsSMILValue& aResult) const
1.84 +{
1.85 + NS_PRECONDITION(aStartVal.mType == aEndVal.mType,
1.86 + "Trying to interpolate different types");
1.87 + NS_PRECONDITION(aStartVal.mType == this,
1.88 + "Unexpected types for interpolation");
1.89 + NS_PRECONDITION(aResult.mType == this, "Unexpected result type");
1.90 + return NS_ERROR_FAILURE; // string values do not interpolate
1.91 +}
1.92 +
1.93 +} // namespace mozilla
