chromium/content/public/browser/tts_utterance.h

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_PUBLIC_BROWSER_TTS_UTTERANCE_H_
#define CONTENT_PUBLIC_BROWSER_TTS_UTTERANCE_H_

#include <memory>
#include <set>

#include "base/unguessable_token.h"
#include "base/values.h"
#include "content/common/content_export.h"
#include "url/gurl.h"

namespace content {
class BrowserContext;
class TtsUtterance;
class WebContents;

// Events sent back from the TTS engine indicating the progress.
enum TtsEventType { … };

// The continuous parameters that apply to a given utterance.
struct CONTENT_EXPORT UtteranceContinuousParameters { … };

// Returns true if this event type is one that indicates an utterance
// is finished and can be destroyed.
CONTENT_EXPORT bool IsFinalTtsEventType(TtsEventType event_type);

// Class that wants to receive events on utterances.
class CONTENT_EXPORT UtteranceEventDelegate { … };

// One speech utterance.
class CONTENT_EXPORT TtsUtterance { … };

}  // namespace content

#endif  // CONTENT_PUBLIC_BROWSER_TTS_UTTERANCE_H_