author Sebastian Hengst <>
Thu, 23 Mar 2017 22:00:26 +0100
changeset 349193 160438b0f0f8d5e463a7f2a0bbb7f3412f7e5f42
parent 242147 bd079aadd3feeee3f9b9f73c5e0bc4bd6a870722
child 417178 a31c1b8a41f81fb564bd86e1c22617595d61a42d
permissions -rw-r--r--
Backed out changeset 9c1ee3920ea3 (bug 1345119)

/* -*- 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 */

#include "SMILStringType.h"
#include "nsSMILValue.h"
#include "nsDebug.h"
#include "nsString.h"

namespace mozilla {

SMILStringType::Init(nsSMILValue& aValue) const
  NS_PRECONDITION(aValue.IsNull(), "Unexpected value type");
  aValue.mU.mPtr = new nsString();
  aValue.mType = this;

SMILStringType::Destroy(nsSMILValue& aValue) const
  NS_PRECONDITION(aValue.mType == this, "Unexpected SMIL value");
  delete static_cast<nsAString*>(aValue.mU.mPtr);
  aValue.mU.mPtr = nullptr;
  aValue.mType = nsSMILNullType::Singleton();

SMILStringType::Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const
  NS_PRECONDITION(aDest.mType == aSrc.mType, "Incompatible SMIL types");
  NS_PRECONDITION(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;

SMILStringType::IsEqual(const nsSMILValue& aLeft,
                        const nsSMILValue& aRight) const
  NS_PRECONDITION(aLeft.mType == aRight.mType, "Incompatible SMIL types");
  NS_PRECONDITION(aLeft.mType == this, "Unexpected type for SMIL value");

  const nsAString* leftString =
    static_cast<const nsAString*>(aLeft.mU.mPtr);
  const nsAString* rightString =
  return *leftString == *rightString;

SMILStringType::Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd,
                    uint32_t aCount) const
  NS_PRECONDITION(aValueToAdd.mType == aDest.mType,
                  "Trying to add invalid types");
  NS_PRECONDITION(aValueToAdd.mType == this, "Unexpected source type");
  return NS_ERROR_FAILURE; // string values can't be added to each other

SMILStringType::ComputeDistance(const nsSMILValue& aFrom,
                                const nsSMILValue& aTo,
                                double& aDistance) const
  NS_PRECONDITION(aFrom.mType == aTo.mType,"Trying to compare different types");
  NS_PRECONDITION(aFrom.mType == this, "Unexpected source type");
  return NS_ERROR_FAILURE; // there is no concept of distance between string values

SMILStringType::Interpolate(const nsSMILValue& aStartVal,
                            const nsSMILValue& aEndVal,
                            double aUnitDistance,
                            nsSMILValue& aResult) const
  NS_PRECONDITION(aStartVal.mType == aEndVal.mType,
      "Trying to interpolate different types");
  NS_PRECONDITION(aStartVal.mType == this,
      "Unexpected types for interpolation");
  NS_PRECONDITION(aResult.mType   == this, "Unexpected result type");
  return NS_ERROR_FAILURE; // string values do not interpolate

} // namespace mozilla