dom/smil/SMILStringType.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef MOZILLA_SMILSTRINGTYPE_H_
   7 #define MOZILLA_SMILSTRINGTYPE_H_
   8
   9 #include "mozilla/Attributes.h"
  10 #include "nsISMILType.h"
  11
  12 namespace mozilla {
  13
  14 class SMILStringType : public nsISMILType
  15 {
  16 public:
  17   // Singleton for nsSMILValue objects to hold onto.
  18   static SMILStringType*
  19   Singleton()
  20   {
  21     static SMILStringType sSingleton;
  22     return &sSingleton;
  23   }
  24
  25 protected:
  26   // nsISMILType Methods
  27   // -------------------
  28   virtual void     Init(nsSMILValue& aValue) const MOZ_OVERRIDE;
  29   virtual void     Destroy(nsSMILValue&) const;
  30   virtual nsresult Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const MOZ_OVERRIDE;
  31   virtual bool     IsEqual(const nsSMILValue& aLeft,
  32                            const nsSMILValue& aRight) const MOZ_OVERRIDE;
  33   virtual nsresult Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd,
  34                        uint32_t aCount) const MOZ_OVERRIDE;
  35   virtual nsresult ComputeDistance(const nsSMILValue& aFrom,
  36                                    const nsSMILValue& aTo,
  37                                    double& aDistance) const MOZ_OVERRIDE;
  38   virtual nsresult Interpolate(const nsSMILValue& aStartVal,
  39                                const nsSMILValue& aEndVal,
  40                                double aUnitDistance,
  41                                nsSMILValue& aResult) const MOZ_OVERRIDE;
  42
  43 private:
  44   // Private constructor: prevent instances beyond my singleton.
  45   MOZ_CONSTEXPR SMILStringType() {}
  46 };
  47
  48 } // namespace mozilla
  49
  50 #endif // MOZILLA_SMILSTRINGTYPE_H_