dom/media/webspeech/synth/windows/SapiService.h
author Morgan Reschenberg <mreschenberg@mozilla.com>
Tue, 18 Jan 2022 23:31:21 +0000
changeset 605085 4c684d5d16fe3a85614e7cb56be8c0029dc98b12
parent 469159 c2210cd89dd1d7d7e01849f5520cdcba0288a6a6
permissions -rw-r--r--
Bug 1748878: Use LayoutDeviceInt types for points, rects, sizes in dev pixels r=Jamie,emilio a=graft Differential Revision: https://phabricator.services.mozilla.com/D135272

/* -*- 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 http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_SapiService_h
#define mozilla_dom_SapiService_h

#include "nsISpeechService.h"
#include "nsIObserver.h"
#include "nsRefPtrHashtable.h"
#include "nsTArray.h"
#include "mozilla/StaticPtr.h"

#include <windows.h>
#include <sapi.h>

namespace mozilla {
namespace dom {

class SapiCallback;

class SapiService final : public nsISpeechService, public nsIObserver {
 public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSISPEECHSERVICE
  NS_DECL_NSIOBSERVER

  SapiService();
  bool Init();

  static SapiService* GetInstance();
  static already_AddRefed<SapiService> GetInstanceForService();

  static void __stdcall SpeechEventCallback(WPARAM aWParam, LPARAM aLParam);

 private:
  virtual ~SapiService();

  already_AddRefed<ISpVoice> InitSapiInstance();
  bool RegisterVoices();

  nsRefPtrHashtable<nsStringHashKey, ISpObjectToken> mVoices;
  nsTArray<RefPtr<SapiCallback>> mCallbacks;

  bool mInitialized;

  static StaticRefPtr<SapiService> sSingleton;
};

}  // namespace dom
}  // namespace mozilla

#endif