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 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* vim:set ts=2 sw=2 sts=2 et cindent: */

 /* 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/. */

 #ifndef mozilla_dom_SpeechSynthesis_h

 #define mozilla_dom_SpeechSynthesis_h

 #include "nsCOMPtr.h"

 #include "nsString.h"

 #include "nsWrapperCache.h"

 #include "nsRefPtrHashtable.h"

 #include "js/TypeDecls.h"

 #include "SpeechSynthesisUtterance.h"

 #include "SpeechSynthesisVoice.h"

 class nsIDOMWindow;

 namespace mozilla {

 namespace dom {

 class nsSpeechTask;

 class SpeechSynthesis MOZ_FINAL : public nsISupports,

                                   public nsWrapperCache

 {

 public:

   SpeechSynthesis(nsPIDOMWindow* aParent);

   virtual ~SpeechSynthesis();

   NS_DECL_CYCLE_COLLECTING_ISUPPORTS

   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(SpeechSynthesis)

   nsIDOMWindow* GetParentObject() const;

   virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;

   bool Pending() const;

   bool Speaking() const;

   bool Paused() const;

   void Speak(SpeechSynthesisUtterance& aUtterance);

   void Cancel();

   void Pause();

   void Resume();

   void OnEnd(const nsSpeechTask* aTask);

   void GetVoices(nsTArray< nsRefPtr<SpeechSynthesisVoice> >& aResult);

 private:

   void AdvanceQueue();

   nsCOMPtr<nsPIDOMWindow> mParent;

   nsTArray<nsRefPtr<SpeechSynthesisUtterance> > mSpeechQueue;

   nsRefPtr<nsSpeechTask> mCurrentTask;

   nsRefPtrHashtable<nsStringHashKey, SpeechSynthesisVoice> mVoiceCache;

 };

 } // namespace dom

 } // namespace mozilla

 #endif