tts_message_filter.cc revision 116680a4aac90f2aa7413d9095a592090648e557 
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    : BrowserMessageFilter(TtsMsgStart),
19      render_process_id_(render_process_id),
20      profile_(profile) {
21  CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
22  TtsController::GetInstance()->AddVoicesChangedDelegate(this);
23}
24
25void TtsMessageFilter::OverrideThreadForMessage(
26    const IPC::Message& message, BrowserThread::ID* thread) {
27  switch (message.type()) {
28  case TtsHostMsg_InitializeVoiceList::ID:
29  case TtsHostMsg_Speak::ID:
30  case TtsHostMsg_Pause::ID:
31  case TtsHostMsg_Resume::ID:
32  case TtsHostMsg_Cancel::ID:
33    *thread = BrowserThread::UI;
34    break;
35  }
36}
37
38bool TtsMessageFilter::OnMessageReceived(const IPC::Message& message) {
39  bool handled = true;
40  IPC_BEGIN_MESSAGE_MAP(TtsMessageFilter, message)
41    IPC_MESSAGE_HANDLER(TtsHostMsg_InitializeVoiceList, OnInitializeVoiceList)
42    IPC_MESSAGE_HANDLER(TtsHostMsg_Speak, OnSpeak)
43    IPC_MESSAGE_HANDLER(TtsHostMsg_Pause, OnPause)
44    IPC_MESSAGE_HANDLER(TtsHostMsg_Resume, OnResume)
45    IPC_MESSAGE_HANDLER(TtsHostMsg_Cancel, OnCancel)
46    IPC_MESSAGE_UNHANDLED(handled = false)
47  IPC_END_MESSAGE_MAP()
48  return handled;
49}
50
51void TtsMessageFilter::OnChannelClosing() {
52  BrowserThread::PostTask(
53      BrowserThread::UI, FROM_HERE,
54      base::Bind(&TtsMessageFilter::OnChannelClosingInUIThread, this));
55}
56
57void TtsMessageFilter::OnDestruct() const {
58  BrowserThread::DeleteOnUIThread::Destruct(this);
59}
60
61void TtsMessageFilter::OnInitializeVoiceList() {
62  CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
63  TtsController* tts_controller = TtsController::GetInstance();
64  std::vector<VoiceData> voices;
65  tts_controller->GetVoices(profile_, &voices);
66
67  std::vector<TtsVoice> out_voices;
68  out_voices.resize(voices.size());
69  for (size_t i = 0; i < voices.size(); ++i) {
70    TtsVoice& out_voice = out_voices[i];
71    out_voice.voice_uri = voices[i].name;
72    out_voice.name = voices[i].name;
73    out_voice.lang = voices[i].lang;
74    out_voice.local_service = !voices[i].remote;
75    out_voice.is_default = (i == 0);
76  }
77  Send(new TtsMsg_SetVoiceList(out_voices));
78}
79
80void TtsMessageFilter::OnSpeak(const TtsUtteranceRequest& request) {
81  CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
82  scoped_ptr<Utterance> utterance(new Utterance(profile_));
83  utterance->set_src_id(request.id);
84  utterance->set_text(request.text);
85  utterance->set_lang(request.lang);
86  utterance->set_voice_name(request.voice);
87  utterance->set_can_enqueue(true);
88
89  UtteranceContinuousParameters params;
90  params.rate = request.rate;
91  params.pitch = request.pitch;
92  params.volume = request.volume;
93  utterance->set_continuous_parameters(params);
94
95  utterance->set_event_delegate(this->AsWeakPtr());
96
97  TtsController::GetInstance()->SpeakOrEnqueue(utterance.release());
98}
99
100void TtsMessageFilter::OnPause() {
101  CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
102  TtsController::GetInstance()->Pause();
103}
104
105void TtsMessageFilter::OnResume() {
106  CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
107  TtsController::GetInstance()->Resume();
108}
109
110void TtsMessageFilter::OnCancel() {
111  CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
112  TtsController::GetInstance()->Stop();
113}
114
115void TtsMessageFilter::OnTtsEvent(Utterance* utterance,
116                                  TtsEventType event_type,
117                                  int char_index,
118                                  const std::string& error_message) {
119  CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
120  switch (event_type) {
121    case TTS_EVENT_START:
122      Send(new TtsMsg_DidStartSpeaking(utterance->src_id()));
123      break;
124    case TTS_EVENT_END:
125      Send(new TtsMsg_DidFinishSpeaking(utterance->src_id()));
126      break;
127    case TTS_EVENT_WORD:
128      Send(new TtsMsg_WordBoundary(utterance->src_id(), char_index));
129      break;
130    case TTS_EVENT_SENTENCE:
131      Send(new TtsMsg_SentenceBoundary(utterance->src_id(), char_index));
132      break;
133    case TTS_EVENT_MARKER:
134      Send(new TtsMsg_MarkerEvent(utterance->src_id(), char_index));
135      break;
136    case TTS_EVENT_INTERRUPTED:
137      Send(new TtsMsg_WasInterrupted(utterance->src_id()));
138      break;
139    case TTS_EVENT_CANCELLED:
140      Send(new TtsMsg_WasCancelled(utterance->src_id()));
141      break;
142    case TTS_EVENT_ERROR:
143      Send(new TtsMsg_SpeakingErrorOccurred(
144          utterance->src_id(), error_message));
145      break;
146    case TTS_EVENT_PAUSE:
147      Send(new TtsMsg_DidPauseSpeaking(utterance->src_id()));
148      break;
149    case TTS_EVENT_RESUME:
150      Send(new TtsMsg_DidResumeSpeaking(utterance->src_id()));
151      break;
152  }
153}
154
155void TtsMessageFilter::OnVoicesChanged() {
156  CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
157  OnInitializeVoiceList();
158}
159
160void TtsMessageFilter::OnChannelClosingInUIThread() {
161  CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
162  TtsController::GetInstance()->RemoveVoicesChangedDelegate(this);
163}
164
165TtsMessageFilter::~TtsMessageFilter() {
166  CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
167  TtsController::GetInstance()->RemoveVoicesChangedDelegate(this);
168}
169