gecko/content/media/webspeech/synth/nsSpeechTask.h

89 lines
2.2 KiB
C++

/* -*- 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/. */
#pragma once
#include "MediaStreamGraph.h"
#include "SpeechSynthesisUtterance.h"
#include "nsISpeechService.h"
namespace mozilla {
namespace dom {
class SpeechSynthesisUtterance;
class SpeechSynthesis;
class SynthStreamListener;
class nsSpeechTask : public nsISpeechTask
{
friend class SynthStreamListener;
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsSpeechTask, nsISpeechTask)
NS_DECL_NSISPEECHTASK
nsSpeechTask(SpeechSynthesisUtterance* aUtterance);
nsSpeechTask(float aVolume, const nsAString& aText);
virtual ~nsSpeechTask();
virtual void Pause();
virtual void Resume();
virtual void Cancel();
float GetCurrentTime();
uint32_t GetCurrentCharOffset();
void SetSpeechSynthesis(SpeechSynthesis* aSpeechSynthesis);
void SetIndirectAudio(bool aIndirectAudio) { mIndirectAudio = aIndirectAudio; }
protected:
virtual nsresult DispatchStartImpl();
virtual nsresult DispatchEndImpl(float aElapsedTime, uint32_t aCharIndex);
virtual nsresult DispatchPauseImpl(float aElapsedTime, uint32_t aCharIndex);
virtual nsresult DispatchResumeImpl(float aElapsedTime, uint32_t aCharIndex);
virtual nsresult DispatchErrorImpl(float aElapsedTime, uint32_t aCharIndex);
virtual nsresult DispatchBoundaryImpl(const nsAString& aName,
float aElapsedTime,
uint32_t aCharIndex);
virtual nsresult DispatchMarkImpl(const nsAString& aName,
float aElapsedTime, uint32_t aCharIndex);
nsRefPtr<SpeechSynthesisUtterance> mUtterance;
float mVolume;
nsString mText;
private:
void End();
nsRefPtr<SourceMediaStream> mStream;
nsCOMPtr<nsISpeechTaskCallback> mCallback;
uint32_t mChannels;
nsRefPtr<SpeechSynthesis> mSpeechSynthesis;
bool mIndirectAudio;
};
} // namespace dom
} // namespace mozilla