dom/smil/SMILEnumType.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_SMILEnumType_h
   8 #define mozilla_SMILEnumType_h
   9
  10 #include "mozilla/Attributes.h"
  11 #include "mozilla/SMILType.h"
  12
  13 namespace mozilla {
  14
  15 class SMILEnumType : public SMILType {
  16  public:
  17   // Singleton for SMILValue objects to hold onto.
  18   static SMILEnumType* Singleton() {
  19     static SMILEnumType sSingleton;
  20     return &sSingleton;
  21   }
  22
  23  protected:
  24   // SMILType Methods
  25   // -------------------
  26   virtual void Init(SMILValue& aValue) const override;
  27   virtual void Destroy(SMILValue& aValue) const override;
  28   virtual nsresult Assign(SMILValue& aDest,
  29                           const SMILValue& aSrc) const override;
  30   virtual bool IsEqual(const SMILValue& aLeft,
  31                        const SMILValue& aRight) const override;
  32   virtual nsresult Add(SMILValue& aDest, const SMILValue& aValueToAdd,
  33                        uint32_t aCount) const override;
  34   virtual nsresult ComputeDistance(const SMILValue& aFrom, const SMILValue& aTo,
  35                                    double& aDistance) const override;
  36   virtual nsresult Interpolate(const SMILValue& aStartVal,
  37                                const SMILValue& aEndVal, double aUnitDistance,
  38                                SMILValue& aResult) const override;
  39
  40  private:
  41   // Private constructor: prevent instances beyond my singleton.
  42   constexpr SMILEnumType() {}
  43 };
  44
  45 }  // namespace mozilla
  46
  47 #endif  // mozilla_SMILEnumType_h