1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
// 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 CHROME_BROWSER_SPEECH_TTS_CHROMEOS_H_
#define CHROME_BROWSER_SPEECH_TTS_CHROMEOS_H_
#include "base/no_destructor.h"
#include "content/public/browser/tts_platform.h"
// This class includes extension-based tts through LoadBuiltInTtsExtension and
// native tts through ARC.
class TtsPlatformImplChromeOs : public content::TtsPlatform {
public:
TtsPlatformImplChromeOs(const TtsPlatformImplChromeOs&) = delete;
TtsPlatformImplChromeOs& operator=(const TtsPlatformImplChromeOs&) = delete;
// Sets the voices exposed by this TtsPlatform.
void SetVoices(std::vector<content::VoiceData> voices);
// Called by ArcTtsService when it receives a word event.
void ReceivedWordEvent();
// TtsPlatform overrides:
bool PlatformImplSupported() override;
bool PlatformImplInitialized() override;
void LoadBuiltInTtsEngine(content::BrowserContext* browser_context) override;
void Speak(int utterance_id,
const std::string& utterance,
const std::string& lang,
const content::VoiceData& voice,
const content::UtteranceContinuousParameters& params,
base::OnceCallback<void(bool)> on_speak_finished) override;
bool StopSpeaking() override;
void GetVoices(std::vector<content::VoiceData>* out_voices) override;
std::string GetError() override;
void ClearError() override;
void SetError(const std::string& error) override;
bool IsSpeaking() override;
void FinalizeVoiceOrdering(std::vector<content::VoiceData>& voices) override;
void RefreshVoices() override;
// Unimplemented.
void Pause() override {}
void Resume() override {}
void WillSpeakUtteranceWithVoice(
content::TtsUtterance* utterance,
const content::VoiceData& voice_data) override {}
void Shutdown() override {}
// Get the single instance of this class.
static TtsPlatformImplChromeOs* GetInstance();
private:
friend base::NoDestructor<TtsPlatformImplChromeOs>;
friend class TtsChromeosTest;
TtsPlatformImplChromeOs();
virtual ~TtsPlatformImplChromeOs();
void ProcessSpeech(int utterance_id,
const std::string& lang,
const content::VoiceData& voice,
const content::UtteranceContinuousParameters& params,
base::OnceCallback<void(bool)> on_speak_finished,
const std::string& parsed_utterance);
std::string error_;
std::vector<content::VoiceData> voices_;
bool received_word_event_ = false;
};
#endif // CHROME_BROWSER_SPEECH_TTS_CHROMEOS_H_
|
