tts_message_filter.cc revision 868fa2fe829687343ffae624259930155e16dbd8 
1// Copyright (c) 2013 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/speech/tts_message_filter.h"
6
7#include "base/bind.h"
8#include "base/logging.h"
9#include "chrome/browser/profiles/profile.h"
10#include "chrome/browser/speech/tts_controller.h"
11#include "chrome/browser/speech/tts_message_filter.h"
12#include "content/public/browser/browser_context.h"
13#include "content/public/browser/render_process_host.h"
14
15using content::BrowserThread;
16
17TtsMessageFilter::TtsMessageFilter(int render_process_id, Profile* profile)
18    : render_process_id_(render_process_id),
19      profile_(profile) {
20  TtsController::GetInstance()->AddVoicesChangedDelegate(this);
21}
22
23void TtsMessageFilter::OverrideThreadForMessage(
24    const IPC::Message& message, BrowserThread::ID* thread) {
25  switch (message.type()) {
26  case TtsHostMsg_InitializeVoiceList::ID:
27  case TtsHostMsg_Speak::ID:
28  case TtsHostMsg_Pause::ID:
29  case TtsHostMsg_Resume::ID:
30  case TtsHostMsg_Cancel::ID:
31    *thread = BrowserThread::UI;
32    break;
33  }
34}
35
36bool TtsMessageFilter::OnMessageReceived(const IPC::Message& message,
37                                         bool* message_was_ok) {
38  bool handled = true;
39  IPC_BEGIN_MESSAGE_MAP_EX(TtsMessageFilter, message, *message_was_ok)
40    IPC_MESSAGE_HANDLER(TtsHostMsg_InitializeVoiceList, OnInitializeVoiceList)
41    IPC_MESSAGE_HANDLER(TtsHostMsg_Speak, OnSpeak)
42    IPC_MESSAGE_HANDLER(TtsHostMsg_Pause, OnPause)
43    IPC_MESSAGE_HANDLER(TtsHostMsg_Resume, OnResume)
44    IPC_MESSAGE_HANDLER(TtsHostMsg_Cancel, OnCancel)
45    IPC_MESSAGE_UNHANDLED(handled = false)
46  IPC_END_MESSAGE_MAP()
47  return handled;
48}
49
50void TtsMessageFilter::OnChannelClosing() {
51  TtsController::GetInstance()->RemoveVoicesChangedDelegate(this);
52}
53
54void TtsMessageFilter::OnInitializeVoiceList() {
55  TtsController* tts_controller = TtsController::GetInstance();
56  std::vector<VoiceData> voices;
57  tts_controller->GetVoices(profile_, &voices);
58
59  std::vector<TtsVoice> out_voices;
60  out_voices.resize(voices.size());
61  for (size_t i = 0; i < voices.size(); ++i) {
62    TtsVoice& out_voice = out_voices[i];
63    out_voice.voice_uri = voices[i].name;
64    out_voice.name = voices[i].name;
65    out_voice.lang = voices[i].lang;
66    out_voice.local_service = true;
67    out_voice.is_default = (i == 0);
68  }
69  Send(new TtsMsg_SetVoiceList(out_voices));
70}
71
72void TtsMessageFilter::OnSpeak(const TtsUtteranceRequest& request) {
73  scoped_ptr<Utterance> utterance(new Utterance(profile_));
74  utterance->set_src_id(request.id);
75  utterance->set_text(request.text);
76  utterance->set_lang(request.lang);
77  utterance->set_voice_name(request.voice);
78  utterance->set_can_enqueue(true);
79
80  UtteranceContinuousParameters params;
81  params.rate = request.rate;
82  params.pitch = request.pitch;
83  params.volume = request.volume;
84  utterance->set_continuous_parameters(params);
85
86  utterance->set_event_delegate(this);
87
88  TtsController::GetInstance()->SpeakOrEnqueue(utterance.release());
89}
90
91void TtsMessageFilter::OnPause() {
92  TtsController::GetInstance()->Pause();
93}
94
95void TtsMessageFilter::OnResume() {
96  TtsController::GetInstance()->Resume();
97}
98
99void TtsMessageFilter::OnCancel() {
100  TtsController::GetInstance()->Stop();
101}
102
103void TtsMessageFilter::OnTtsEvent(Utterance* utterance,
104                                  TtsEventType event_type,
105                                  int char_index,
106                                  const std::string& error_message) {
107  switch (event_type) {
108    case TTS_EVENT_START:
109      Send(new TtsMsg_DidStartSpeaking(utterance->src_id()));
110      break;
111    case TTS_EVENT_END:
112      Send(new TtsMsg_DidFinishSpeaking(utterance->src_id()));
113      break;
114    case TTS_EVENT_WORD:
115      Send(new TtsMsg_WordBoundary(utterance->src_id(), char_index));
116      break;
117    case TTS_EVENT_SENTENCE:
118      Send(new TtsMsg_SentenceBoundary(utterance->src_id(), char_index));
119      break;
120    case TTS_EVENT_MARKER:
121      Send(new TtsMsg_MarkerEvent(utterance->src_id(), char_index));
122      break;
123    case TTS_EVENT_INTERRUPTED:
124      Send(new TtsMsg_WasInterrupted(utterance->src_id()));
125      break;
126    case TTS_EVENT_CANCELLED:
127      Send(new TtsMsg_WasCancelled(utterance->src_id()));
128      break;
129    case TTS_EVENT_ERROR:
130      Send(new TtsMsg_SpeakingErrorOccurred(
131          utterance->src_id(), error_message));
132      break;
133    case TTS_EVENT_PAUSE:
134      Send(new TtsMsg_DidPauseSpeaking(utterance->src_id()));
135      break;
136    case TTS_EVENT_RESUME:
137      Send(new TtsMsg_DidResumeSpeaking(utterance->src_id()));
138      break;
139  }
140}
141
142void TtsMessageFilter::OnVoicesChanged() {
143  OnInitializeVoiceList();
144}
145
146TtsMessageFilter::~TtsMessageFilter() {
147}
148