speech_monitor.cc revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7 
1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/chromeos/accessibility/speech_monitor.h"
6
7namespace chromeos {
8
9namespace {
10const char kChromeVoxEnabledMessage[] = "chrome vox spoken feedback is ready";
11}  // anonymous namespace
12
13SpeechMonitor::SpeechMonitor() {
14  TtsController::GetInstance()->SetPlatformImpl(this);
15}
16
17SpeechMonitor::~SpeechMonitor() {
18  TtsController::GetInstance()->SetPlatformImpl(TtsPlatformImpl::GetInstance());
19}
20
21std::string SpeechMonitor::GetNextUtterance() {
22  if (utterance_queue_.empty()) {
23    loop_runner_ = new content::MessageLoopRunner();
24    loop_runner_->Run();
25    loop_runner_ = NULL;
26  }
27  std::string result = utterance_queue_.front();
28  utterance_queue_.pop_front();
29  return result;
30}
31
32bool SpeechMonitor::SkipChromeVoxEnabledMessage() {
33  return GetNextUtterance() == kChromeVoxEnabledMessage;
34}
35
36bool SpeechMonitor::PlatformImplAvailable() {
37  return true;
38}
39
40bool SpeechMonitor::Speak(
41    int utterance_id,
42    const std::string& utterance,
43    const std::string& lang,
44    const VoiceData& voice,
45    const UtteranceContinuousParameters& params) {
46  TtsController::GetInstance()->OnTtsEvent(
47      utterance_id,
48      TTS_EVENT_END,
49      static_cast<int>(utterance.size()),
50      std::string());
51  return true;
52}
53
54bool SpeechMonitor::StopSpeaking() {
55  return true;
56}
57
58bool SpeechMonitor::IsSpeaking() {
59  return false;
60}
61
62void SpeechMonitor::GetVoices(std::vector<VoiceData>* out_voices) {
63  out_voices->push_back(VoiceData());
64  VoiceData& voice = out_voices->back();
65  voice.native = true;
66  voice.name = "SpeechMonitor";
67  voice.events.insert(TTS_EVENT_END);
68}
69
70std::string SpeechMonitor::error() {
71  return "";
72}
73
74void SpeechMonitor::WillSpeakUtteranceWithVoice(const Utterance* utterance,
75                                                const VoiceData& voice_data) {
76  utterance_queue_.push_back(utterance->text());
77  if (loop_runner_.get())
78    loop_runner_->Quit();
79}
80
81}  // namespace chromeos
82