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| 1 // Copyright (c) 2012 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/speech_input_extension_manager.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/json/json_writer.h" | |
| 9 #include "base/lazy_instance.h" | |
| 10 #include "base/utf_string_conversions.h" | |
| 11 #include "base/values.h" | |
| 12 #include "chrome/browser/extensions/event_router.h" | |
| 13 #include "chrome/browser/extensions/extension_function_registry.h" | |
| 14 #include "chrome/browser/extensions/extension_host.h" | |
| 15 #include "chrome/browser/extensions/extension_process_manager.h" | |
| 16 #include "chrome/browser/extensions/extension_service.h" | |
| 17 #include "chrome/browser/extensions/extension_system.h" | |
| 18 #include "chrome/browser/profiles/profile.h" | |
| 19 #include "chrome/browser/profiles/profile_dependency_manager.h" | |
| 20 #include "chrome/browser/profiles/profile_keyed_service.h" | |
| 21 #include "chrome/browser/profiles/profile_keyed_service_factory.h" | |
| 22 #include "chrome/browser/speech/speech_input_extension_api.h" | |
| 23 #include "chrome/common/chrome_notification_types.h" | |
| 24 #include "chrome/common/extensions/extension.h" | |
| 25 #include "content/public/browser/browser_thread.h" | |
| 26 #include "content/public/browser/notification_registrar.h" | |
| 27 #include "content/public/browser/notification_service.h" | |
| 28 #include "content/public/browser/render_process_host.h" | |
| 29 #include "content/public/browser/speech_recognition_manager.h" | |
| 30 #include "content/public/browser/speech_recognition_session_config.h" | |
| 31 #include "content/public/browser/speech_recognition_session_context.h" | |
| 32 #include "content/public/common/speech_recognition_error.h" | |
| 33 #include "content/public/common/speech_recognition_result.h" | |
| 34 #include "net/url_request/url_request_context_getter.h" | |
| 35 | |
| 36 using content::BrowserThread; | |
| 37 using content::SpeechRecognitionHypothesis; | |
| 38 using content::SpeechRecognitionManager; | |
| 39 | |
| 40 namespace { | |
| 41 | |
| 42 const char kErrorNoRecordingDeviceFound[] = "noRecordingDeviceFound"; | |
| 43 const char kErrorRecordingDeviceInUse[] = "recordingDeviceInUse"; | |
| 44 const char kErrorUnableToStart[] = "unableToStart"; | |
| 45 const char kErrorRequestDenied[] = "requestDenied"; | |
| 46 const char kErrorRequestInProgress[] = "requestInProgress"; | |
| 47 const char kErrorInvalidOperation[] = "invalidOperation"; | |
| 48 | |
| 49 const char kErrorCodeKey[] = "code"; | |
| 50 const char kErrorCaptureError[] = "captureError"; | |
| 51 const char kErrorNetworkError[] = "networkError"; | |
| 52 const char kErrorNoSpeechHeard[] = "noSpeechHeard"; | |
| 53 const char kErrorNoResults[] = "noResults"; | |
| 54 | |
| 55 const char kUtteranceKey[] = "utterance"; | |
| 56 const char kConfidenceKey[] = "confidence"; | |
| 57 const char kHypothesesKey[] = "hypotheses"; | |
| 58 | |
| 59 const char kOnErrorEvent[] = "experimental.speechInput.onError"; | |
| 60 const char kOnResultEvent[] = "experimental.speechInput.onResult"; | |
| 61 const char kOnSoundStartEvent[] = "experimental.speechInput.onSoundStart"; | |
| 62 const char kOnSoundEndEvent[] = "experimental.speechInput.onSoundEnd"; | |
| 63 | |
| 64 } | |
| 65 | |
| 66 SpeechInputExtensionInterface::SpeechInputExtensionInterface() { | |
| 67 } | |
| 68 | |
| 69 SpeechInputExtensionInterface::~SpeechInputExtensionInterface() { | |
| 70 } | |
| 71 | |
| 72 SpeechInputExtensionManager::SpeechInputExtensionManager(Profile* profile) | |
| 73 : profile_(profile), | |
| 74 state_(kIdle), | |
| 75 registrar_(new content::NotificationRegistrar), | |
| 76 speech_interface_(NULL), | |
| 77 is_recognition_in_progress_(false), | |
| 78 speech_recognition_session_id_( | |
| 79 SpeechRecognitionManager::kSessionIDInvalid) { | |
| 80 registrar_->Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED, | |
| 81 content::Source<Profile>(profile_)); | |
| 82 } | |
| 83 | |
| 84 SpeechInputExtensionManager::~SpeechInputExtensionManager() { | |
| 85 } | |
| 86 | |
| 87 SpeechInputExtensionManager* SpeechInputExtensionManager::GetForProfile( | |
| 88 Profile* profile) { | |
| 89 extensions::SpeechInputAPI* speech_input_api = | |
| 90 extensions::ProfileKeyedAPIFactory<extensions::SpeechInputAPI>:: | |
| 91 GetForProfile(profile); | |
| 92 if (!speech_input_api) | |
| 93 return NULL; | |
| 94 return speech_input_api->manager(); | |
| 95 } | |
| 96 | |
| 97 void SpeechInputExtensionManager::Observe(int type, | |
| 98 const content::NotificationSource& source, | |
| 99 const content::NotificationDetails& details) { | |
| 100 if (type == chrome::NOTIFICATION_EXTENSION_UNLOADED) { | |
| 101 ExtensionUnloaded( | |
| 102 content::Details<extensions::UnloadedExtensionInfo>(details)-> | |
| 103 extension->id()); | |
| 104 } else { | |
| 105 NOTREACHED(); | |
| 106 } | |
| 107 } | |
| 108 | |
| 109 void SpeechInputExtensionManager::ShutdownOnUIThread() { | |
| 110 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 111 VLOG(1) << "Profile shutting down."; | |
| 112 | |
| 113 // Note: Unretained(this) is safe, also if we are freed in the meanwhile. | |
| 114 // It is used by the SR manager just for comparing the raw pointer and remove | |
| 115 // the associated sessions. | |
| 116 BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, | |
| 117 base::Bind(&SpeechInputExtensionManager::AbortAllSessionsOnIOThread, | |
| 118 base::Unretained(this))); | |
| 119 | |
| 120 base::AutoLock auto_lock(state_lock_); | |
| 121 DCHECK(state_ != kShutdown); | |
| 122 if (state_ != kIdle) { | |
| 123 BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, | |
| 124 base::Bind(&SpeechInputExtensionManager::ForceStopOnIOThread, this)); | |
| 125 } | |
| 126 state_ = kShutdown; | |
| 127 VLOG(1) << "Entering the shutdown sink state."; | |
| 128 registrar_.reset(); | |
| 129 profile_ = NULL; | |
| 130 } | |
| 131 | |
| 132 void SpeechInputExtensionManager::AbortAllSessionsOnIOThread() { | |
| 133 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 134 // TODO(primiano): The following check should not be really needed if the | |
| 135 // SpeechRecognitionManager and this class are destroyed in the correct order | |
| 136 // (this class first), as it is in current chrome implementation. | |
| 137 // However, it seems the some ChromiumOS tests violate the destruction order | |
| 138 // envisaged by browser_main_loop, so SpeechRecognitionmanager could have been | |
| 139 // freed by now. | |
| 140 if (SpeechRecognitionManager* mgr = SpeechRecognitionManager::GetInstance()) | |
| 141 mgr->AbortAllSessionsForListener(this); | |
| 142 } | |
| 143 | |
| 144 void SpeechInputExtensionManager::ExtensionUnloaded( | |
| 145 const std::string& extension_id) { | |
| 146 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 147 | |
| 148 base::AutoLock auto_lock(state_lock_); | |
| 149 if (state_ == kShutdown) | |
| 150 return; | |
| 151 | |
| 152 VLOG(1) << "Extension unloaded. Requesting to enforce stop..."; | |
| 153 if (extension_id_in_use_ == extension_id) { | |
| 154 if (state_ != kIdle) { | |
| 155 BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, | |
| 156 base::Bind(&SpeechInputExtensionManager::ForceStopOnIOThread, this)); | |
| 157 } | |
| 158 } | |
| 159 } | |
| 160 | |
| 161 void SpeechInputExtensionManager::SetSpeechInputExtensionInterface( | |
| 162 SpeechInputExtensionInterface* speech_interface) { | |
| 163 speech_interface_ = speech_interface; | |
| 164 } | |
| 165 | |
| 166 SpeechInputExtensionInterface* | |
| 167 SpeechInputExtensionManager::GetSpeechInputExtensionInterface() { | |
| 168 return speech_interface_ ? speech_interface_ : this; | |
| 169 } | |
| 170 | |
| 171 void SpeechInputExtensionManager::ResetToIdleState() { | |
| 172 VLOG(1) << "State changed to idle. Deassociating any extensions."; | |
| 173 state_ = kIdle; | |
| 174 extension_id_in_use_.clear(); | |
| 175 } | |
| 176 | |
| 177 int SpeechInputExtensionManager::GetRenderProcessIDForExtension( | |
| 178 const std::string& extension_id) const { | |
| 179 ExtensionProcessManager* epm = | |
| 180 extensions::ExtensionSystem::Get(profile_)->process_manager(); | |
| 181 DCHECK(epm); | |
| 182 extensions::ExtensionHost* eh = | |
| 183 epm->GetBackgroundHostForExtension(extension_id); | |
| 184 DCHECK(eh); | |
| 185 content::RenderProcessHost* rph = eh->render_process_host(); | |
| 186 DCHECK(rph); | |
| 187 return rph->GetID(); | |
| 188 } | |
| 189 | |
| 190 void SpeechInputExtensionManager::OnRecognitionResults( | |
| 191 int session_id, | |
| 192 const content::SpeechRecognitionResults& results) { | |
| 193 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 194 DCHECK_EQ(session_id, speech_recognition_session_id_); | |
| 195 | |
| 196 // Stopping will start the disassociation with the extension. | |
| 197 // Make a copy to report the results to the proper one. | |
| 198 std::string extension_id = extension_id_in_use_; | |
| 199 ForceStopOnIOThread(); | |
| 200 | |
| 201 BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, | |
| 202 base::Bind(&SpeechInputExtensionManager::SetRecognitionResultsOnUIThread, | |
| 203 this, results, extension_id)); | |
| 204 } | |
| 205 | |
| 206 void SpeechInputExtensionManager::SetRecognitionResultsOnUIThread( | |
| 207 const content::SpeechRecognitionResults& results, | |
| 208 const std::string& extension_id) { | |
| 209 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 210 | |
| 211 content::SpeechRecognitionResults::const_iterator it = results.begin(); | |
| 212 for (; it != results.end(); ++it) { | |
| 213 const content::SpeechRecognitionResult& result = (*it); | |
| 214 | |
| 215 scoped_ptr<ListValue> args(new ListValue()); | |
| 216 DictionaryValue* js_event = new DictionaryValue(); | |
| 217 args->Append(js_event); | |
| 218 | |
| 219 ListValue* js_hypothesis_array = new ListValue(); | |
| 220 js_event->Set(kHypothesesKey, js_hypothesis_array); | |
| 221 | |
| 222 for (size_t i = 0; i < result.hypotheses.size(); ++i) { | |
| 223 const SpeechRecognitionHypothesis& hypothesis = result.hypotheses[i]; | |
| 224 | |
| 225 DictionaryValue* js_hypothesis_object = new DictionaryValue(); | |
| 226 js_hypothesis_array->Append(js_hypothesis_object); | |
| 227 | |
| 228 js_hypothesis_object->SetString(kUtteranceKey, | |
| 229 UTF16ToUTF8(hypothesis.utterance)); | |
| 230 js_hypothesis_object->SetDouble(kConfidenceKey, | |
| 231 hypothesis.confidence); | |
| 232 } | |
| 233 | |
| 234 DispatchEventToExtension(extension_id, kOnResultEvent, args.Pass()); | |
| 235 } | |
| 236 } | |
| 237 | |
| 238 void SpeechInputExtensionManager::OnRecognitionStart(int session_id) { | |
| 239 DCHECK_EQ(session_id, speech_recognition_session_id_); | |
| 240 } | |
| 241 | |
| 242 void SpeechInputExtensionManager::OnAudioStart(int session_id) { | |
| 243 VLOG(1) << "OnAudioStart"; | |
| 244 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 245 DCHECK_EQ(session_id, speech_recognition_session_id_); | |
| 246 | |
| 247 BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, | |
| 248 base::Bind(&SpeechInputExtensionManager::DidStartReceivingAudioOnUIThread, | |
| 249 this)); | |
| 250 } | |
| 251 | |
| 252 void SpeechInputExtensionManager::OnAudioEnd(int session_id) { | |
| 253 } | |
| 254 | |
| 255 void SpeechInputExtensionManager::OnRecognitionEnd(int session_id) { | |
| 256 // In the very exceptional case in which we requested a new recognition before | |
| 257 // the previous one ended, don't clobber the speech_recognition_session_id_. | |
| 258 if (speech_recognition_session_id_ == session_id) { | |
| 259 is_recognition_in_progress_ = false; | |
| 260 speech_recognition_session_id_ = | |
| 261 SpeechRecognitionManager::kSessionIDInvalid; | |
| 262 } | |
| 263 } | |
| 264 | |
| 265 void SpeechInputExtensionManager::DidStartReceivingAudioOnUIThread() { | |
| 266 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 267 | |
| 268 base::AutoLock auto_lock(state_lock_); | |
| 269 if (state_ == kShutdown) | |
| 270 return; | |
| 271 | |
| 272 DCHECK_EQ(state_, kStarting); | |
| 273 VLOG(1) << "State changed to recording"; | |
| 274 state_ = kRecording; | |
| 275 | |
| 276 DCHECK(profile_); | |
| 277 | |
| 278 VLOG(1) << "Sending start notification"; | |
| 279 content::NotificationService::current()->Notify( | |
| 280 chrome::NOTIFICATION_EXTENSION_SPEECH_INPUT_RECORDING_STARTED, | |
| 281 content::Source<Profile>(profile_), | |
| 282 content::Details<std::string>(&extension_id_in_use_)); | |
| 283 } | |
| 284 | |
| 285 void SpeechInputExtensionManager::OnRecognitionError( | |
| 286 int session_id, const content::SpeechRecognitionError& error) { | |
| 287 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 288 DCHECK_EQ(session_id, speech_recognition_session_id_); | |
| 289 VLOG(1) << "OnRecognitionError: " << error.code; | |
| 290 | |
| 291 base::AutoLock auto_lock(state_lock_); | |
| 292 if (state_ == kShutdown) | |
| 293 return; | |
| 294 | |
| 295 GetSpeechInputExtensionInterface()->StopRecording(true); | |
| 296 | |
| 297 std::string event_error_code; | |
| 298 bool report_to_event = true; | |
| 299 | |
| 300 switch (error.code) { | |
| 301 case content::SPEECH_RECOGNITION_ERROR_NONE: | |
| 302 break; | |
| 303 | |
| 304 case content::SPEECH_RECOGNITION_ERROR_ABORTED: | |
| 305 // ERROR_ABORTED is received whenever AbortSession is called on the | |
| 306 // manager. However, we want propagate the error only if it is triggered | |
| 307 // by an external cause (another recognition started, aborting us), thus | |
| 308 // only if it occurs while we are capturing audio. | |
| 309 if (state_ == kRecording) | |
| 310 event_error_code = kErrorCaptureError; | |
| 311 break; | |
| 312 | |
| 313 case content::SPEECH_RECOGNITION_ERROR_AUDIO: | |
| 314 if (state_ == kStarting) { | |
| 315 event_error_code = kErrorUnableToStart; | |
| 316 report_to_event = false; | |
| 317 } else { | |
| 318 event_error_code = kErrorCaptureError; | |
| 319 } | |
| 320 break; | |
| 321 | |
| 322 case content::SPEECH_RECOGNITION_ERROR_NETWORK: | |
| 323 event_error_code = kErrorNetworkError; | |
| 324 break; | |
| 325 | |
| 326 case content::SPEECH_RECOGNITION_ERROR_BAD_GRAMMAR: | |
| 327 // No error is returned on invalid language, for example. | |
| 328 // To avoid confusion about when this is would be fired, the invalid | |
| 329 // params error is not being exposed to the onError event. | |
| 330 event_error_code = kErrorUnableToStart; | |
| 331 break; | |
| 332 | |
| 333 case content::SPEECH_RECOGNITION_ERROR_NO_SPEECH: | |
| 334 event_error_code = kErrorNoSpeechHeard; | |
| 335 break; | |
| 336 | |
| 337 case content::SPEECH_RECOGNITION_ERROR_NO_MATCH: | |
| 338 event_error_code = kErrorNoResults; | |
| 339 break; | |
| 340 | |
| 341 // The remaining kErrorAborted case should never be returned by the server. | |
| 342 default: | |
| 343 NOTREACHED(); | |
| 344 } | |
| 345 | |
| 346 if (!event_error_code.empty()) { | |
| 347 BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, | |
| 348 base::Bind(&SpeechInputExtensionManager::DispatchError, | |
| 349 this, event_error_code, report_to_event)); | |
| 350 } | |
| 351 } | |
| 352 | |
| 353 void SpeechInputExtensionManager::OnEnvironmentEstimationComplete( | |
| 354 int session_id) { | |
| 355 DCHECK_EQ(session_id, speech_recognition_session_id_); | |
| 356 } | |
| 357 | |
| 358 void SpeechInputExtensionManager::OnSoundStart(int session_id) { | |
| 359 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 360 DCHECK_EQ(session_id, speech_recognition_session_id_); | |
| 361 VLOG(1) << "OnSoundStart"; | |
| 362 | |
| 363 BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, | |
| 364 base::Bind(&SpeechInputExtensionManager::DispatchEventToExtension, | |
| 365 this, extension_id_in_use_, std::string(kOnSoundStartEvent), | |
| 366 Passed(scoped_ptr<ListValue>(new ListValue())))); | |
| 367 } | |
| 368 | |
| 369 void SpeechInputExtensionManager::OnSoundEnd(int session_id) { | |
| 370 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 371 VLOG(1) << "OnSoundEnd"; | |
| 372 | |
| 373 BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, | |
| 374 base::Bind(&SpeechInputExtensionManager::DispatchEventToExtension, | |
| 375 this, extension_id_in_use_, std::string(kOnSoundEndEvent), | |
| 376 Passed(scoped_ptr<ListValue>(new ListValue())))); | |
| 377 } | |
| 378 | |
| 379 void SpeechInputExtensionManager::DispatchEventToExtension( | |
| 380 const std::string& extension_id, const std::string& event_name, | |
| 381 scoped_ptr<ListValue> event_args) { | |
| 382 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 383 | |
| 384 base::AutoLock auto_lock(state_lock_); | |
| 385 if (state_ == kShutdown) | |
| 386 return; | |
| 387 | |
| 388 if (profile_ && extensions::ExtensionSystem::Get(profile_)->event_router()) { | |
| 389 scoped_ptr<extensions::Event> event(new extensions::Event( | |
| 390 event_name, event_args.Pass())); | |
| 391 event->restrict_to_profile = profile_; | |
| 392 extensions::ExtensionSystem::Get(profile_)->event_router()-> | |
| 393 DispatchEventToExtension(extension_id, event.Pass()); | |
| 394 } | |
| 395 } | |
| 396 | |
| 397 void SpeechInputExtensionManager::DispatchError( | |
| 398 const std::string& error, bool dispatch_event) { | |
| 399 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 400 | |
| 401 std::string extension_id; | |
| 402 { | |
| 403 base::AutoLock auto_lock(state_lock_); | |
| 404 if (state_ == kShutdown) | |
| 405 return; | |
| 406 | |
| 407 extension_id = extension_id_in_use_; | |
| 408 ResetToIdleState(); | |
| 409 | |
| 410 // Will set the error property in the ongoing extension function calls. | |
| 411 ExtensionError details(extension_id, error); | |
| 412 content::NotificationService::current()->Notify( | |
| 413 chrome::NOTIFICATION_EXTENSION_SPEECH_INPUT_FAILED, | |
| 414 content::Source<Profile>(profile_), | |
| 415 content::Details<ExtensionError>(&details)); | |
| 416 } | |
| 417 | |
| 418 // Used for errors that are also reported via the onError event. | |
| 419 if (dispatch_event) { | |
| 420 scoped_ptr<ListValue> args(new ListValue()); | |
| 421 DictionaryValue* js_error = new DictionaryValue(); | |
| 422 args->Append(js_error); | |
| 423 js_error->SetString(kErrorCodeKey, error); | |
| 424 DispatchEventToExtension(extension_id, kOnErrorEvent, args.Pass()); | |
| 425 } | |
| 426 } | |
| 427 | |
| 428 bool SpeechInputExtensionManager::Start( | |
| 429 const std::string& extension_id, const std::string& language, | |
| 430 const std::string& grammar, bool filter_profanities, std::string* error) { | |
| 431 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 432 DCHECK(error); | |
| 433 VLOG(1) << "Requesting start (UI thread)"; | |
| 434 | |
| 435 base::AutoLock auto_lock(state_lock_); | |
| 436 if (state_ == kShutdown || | |
| 437 (!extension_id_in_use_.empty() && extension_id_in_use_ != extension_id)) { | |
| 438 *error = kErrorRequestDenied; | |
| 439 return false; | |
| 440 } | |
| 441 | |
| 442 switch (state_) { | |
| 443 case kIdle: | |
| 444 break; | |
| 445 | |
| 446 case kStarting: | |
| 447 *error = kErrorRequestInProgress; | |
| 448 return false; | |
| 449 | |
| 450 case kRecording: | |
| 451 case kStopping: | |
| 452 *error = kErrorInvalidOperation; | |
| 453 return false; | |
| 454 | |
| 455 default: | |
| 456 NOTREACHED(); | |
| 457 } | |
| 458 | |
| 459 const extensions::Extension* extension = | |
| 460 extensions::ExtensionSystem::Get(profile_)->extension_service()-> | |
| 461 GetExtensionById(extension_id, true); | |
| 462 DCHECK(extension); | |
| 463 const std::string& extension_name = extension->name(); | |
| 464 | |
| 465 extension_id_in_use_ = extension_id; | |
| 466 VLOG(1) << "State changed to starting"; | |
| 467 state_ = kStarting; | |
| 468 | |
| 469 scoped_refptr<net::URLRequestContextGetter> url_request_context_getter = | |
| 470 profile_->GetRequestContext(); | |
| 471 | |
| 472 const int render_process_id = GetRenderProcessIDForExtension(extension_id); | |
| 473 | |
| 474 BrowserThread::PostTask( | |
| 475 BrowserThread::IO, FROM_HERE, | |
| 476 base::Bind(&SpeechInputExtensionManager::StartOnIOThread, this, | |
| 477 url_request_context_getter, extension_name, language, grammar, | |
| 478 filter_profanities, render_process_id)); | |
| 479 return true; | |
| 480 } | |
| 481 | |
| 482 void SpeechInputExtensionManager::StartOnIOThread( | |
| 483 scoped_refptr<net::URLRequestContextGetter> context_getter, | |
| 484 const std::string& extension_name, | |
| 485 const std::string& language, | |
| 486 const std::string& grammar, | |
| 487 bool filter_profanities, | |
| 488 int render_process_id) { | |
| 489 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 490 VLOG(1) << "Requesting start (IO thread)"; | |
| 491 | |
| 492 // Everything put inside the lock to ensure the validity of context_getter, | |
| 493 // guaranteed while not in the shutdown state. Any ongoing or recognition | |
| 494 // request will be requested to be aborted when entering the shutdown state. | |
| 495 base::AutoLock auto_lock(state_lock_); | |
| 496 if (state_ == kShutdown) | |
| 497 return; | |
| 498 | |
| 499 // TODO(primiano): These two checks below could be avoided, since they are | |
| 500 // already handled in the speech recognition classes. However, since the | |
| 501 // speech input extensions tests are bypassing the manager, we need them to | |
| 502 // pass the tests. | |
| 503 if (!GetSpeechInputExtensionInterface()->HasAudioInputDevices()) { | |
| 504 BrowserThread::PostTask( | |
| 505 BrowserThread::UI, FROM_HERE, | |
| 506 base::Bind(&SpeechInputExtensionManager::DispatchError, this, | |
| 507 std::string(kErrorNoRecordingDeviceFound), false)); | |
| 508 return; | |
| 509 } | |
| 510 | |
| 511 if (GetSpeechInputExtensionInterface()->IsCapturingAudio()) { | |
| 512 BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, | |
| 513 base::Bind(&SpeechInputExtensionManager::DispatchError, this, | |
| 514 std::string(kErrorRecordingDeviceInUse), false)); | |
| 515 return; | |
| 516 } | |
| 517 | |
| 518 GetSpeechInputExtensionInterface()->StartRecording(this, | |
| 519 context_getter, | |
| 520 extension_name, | |
| 521 language, | |
| 522 grammar, | |
| 523 filter_profanities, | |
| 524 render_process_id); | |
| 525 } | |
| 526 | |
| 527 bool SpeechInputExtensionManager::HasAudioInputDevices() { | |
| 528 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 529 return SpeechRecognitionManager::GetInstance()->HasAudioInputDevices(); | |
| 530 } | |
| 531 | |
| 532 bool SpeechInputExtensionManager::IsCapturingAudio() { | |
| 533 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 534 return SpeechRecognitionManager::GetInstance()->IsCapturingAudio(); | |
| 535 } | |
| 536 | |
| 537 void SpeechInputExtensionManager::IsRecording( | |
| 538 const IsRecordingCallback& callback) { | |
| 539 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 540 BrowserThread::PostTask( | |
| 541 BrowserThread::IO, FROM_HERE, | |
| 542 base::Bind(&SpeechInputExtensionManager::IsRecordingOnIOThread, | |
| 543 this, callback)); | |
| 544 } | |
| 545 | |
| 546 void SpeechInputExtensionManager::IsRecordingOnIOThread( | |
| 547 const IsRecordingCallback& callback) { | |
| 548 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 549 | |
| 550 bool result = GetSpeechInputExtensionInterface()->IsCapturingAudio(); | |
| 551 | |
| 552 BrowserThread::PostTask( | |
| 553 BrowserThread::UI, FROM_HERE, | |
| 554 base::Bind(&SpeechInputExtensionManager::IsRecordingOnUIThread, | |
| 555 this, callback, result)); | |
| 556 } | |
| 557 | |
| 558 void SpeechInputExtensionManager::IsRecordingOnUIThread( | |
| 559 const IsRecordingCallback& callback, | |
| 560 bool result) { | |
| 561 BrowserThread::CurrentlyOn(BrowserThread::UI); | |
| 562 callback.Run(result); | |
| 563 } | |
| 564 | |
| 565 void SpeechInputExtensionManager::StartRecording( | |
| 566 content::SpeechRecognitionEventListener* listener, | |
| 567 net::URLRequestContextGetter* context_getter, | |
| 568 const std::string& extension_name, | |
| 569 const std::string& language, | |
| 570 const std::string& grammar, | |
| 571 bool filter_profanities, | |
| 572 int render_process_id) { | |
| 573 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 574 | |
| 575 content::SpeechRecognitionSessionContext context; | |
| 576 context.requested_by_page_element = false; | |
| 577 context.render_process_id = render_process_id; | |
| 578 context.context_name = extension_name; | |
| 579 | |
| 580 content::SpeechRecognitionSessionConfig config; | |
| 581 config.language = language; | |
| 582 config.grammars.push_back(content::SpeechRecognitionGrammar(grammar)); | |
| 583 config.initial_context = context; | |
| 584 config.url_request_context_getter = context_getter; | |
| 585 config.filter_profanities = filter_profanities; | |
| 586 config.event_listener = listener; | |
| 587 | |
| 588 DCHECK(!is_recognition_in_progress_); | |
| 589 SpeechRecognitionManager& manager = *SpeechRecognitionManager::GetInstance(); | |
| 590 speech_recognition_session_id_ = | |
| 591 manager.CreateSession(config); | |
| 592 DCHECK_NE(speech_recognition_session_id_, | |
| 593 SpeechRecognitionManager::kSessionIDInvalid); | |
| 594 is_recognition_in_progress_ = true; | |
| 595 manager.StartSession(speech_recognition_session_id_); | |
| 596 } | |
| 597 | |
| 598 bool SpeechInputExtensionManager::HasValidRecognizer() { | |
| 599 if (!is_recognition_in_progress_) | |
| 600 return false; | |
| 601 return SpeechRecognitionManager::GetInstance()->IsCapturingAudio(); | |
| 602 } | |
| 603 | |
| 604 bool SpeechInputExtensionManager::Stop(const std::string& extension_id, | |
| 605 std::string* error) { | |
| 606 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 607 DCHECK(error); | |
| 608 VLOG(1) << "Requesting stop (UI thread)"; | |
| 609 | |
| 610 base::AutoLock auto_lock(state_lock_); | |
| 611 if (state_ == kShutdown || | |
| 612 (!extension_id_in_use_.empty() && extension_id_in_use_ != extension_id)) { | |
| 613 *error = kErrorRequestDenied; | |
| 614 return false; | |
| 615 } | |
| 616 | |
| 617 switch (state_) { | |
| 618 case kRecording: | |
| 619 break; | |
| 620 | |
| 621 case kStopping: | |
| 622 *error = kErrorRequestInProgress; | |
| 623 return false; | |
| 624 | |
| 625 case kIdle: | |
| 626 case kStarting: | |
| 627 *error = kErrorInvalidOperation; | |
| 628 return false; | |
| 629 | |
| 630 default: | |
| 631 NOTREACHED(); | |
| 632 } | |
| 633 | |
| 634 // Guarded by the state lock. | |
| 635 DCHECK(GetSpeechInputExtensionInterface()->HasValidRecognizer()); | |
| 636 | |
| 637 VLOG(1) << "State changed to stopping"; | |
| 638 state_ = kStopping; | |
| 639 | |
| 640 BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, | |
| 641 base::Bind(&SpeechInputExtensionManager::ForceStopOnIOThread, this)); | |
| 642 return true; | |
| 643 } | |
| 644 | |
| 645 void SpeechInputExtensionManager::ForceStopOnIOThread() { | |
| 646 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 647 VLOG(1) << "Requesting forced stop (IO thread)"; | |
| 648 | |
| 649 base::AutoLock auto_lock(state_lock_); | |
| 650 DCHECK(state_ != kIdle); | |
| 651 | |
| 652 GetSpeechInputExtensionInterface()->StopRecording(false); | |
| 653 | |
| 654 if (state_ == kShutdown) | |
| 655 return; | |
| 656 | |
| 657 BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, | |
| 658 base::Bind(&SpeechInputExtensionManager::StopSucceededOnUIThread, this)); | |
| 659 } | |
| 660 | |
| 661 void SpeechInputExtensionManager::StopRecording(bool recognition_failed) { | |
| 662 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 663 if (!is_recognition_in_progress_) | |
| 664 return; | |
| 665 DCHECK_NE(speech_recognition_session_id_, | |
| 666 SpeechRecognitionManager::kSessionIDInvalid); | |
| 667 SpeechRecognitionManager::GetInstance()->AbortSession( | |
| 668 speech_recognition_session_id_); | |
| 669 } | |
| 670 | |
| 671 void SpeechInputExtensionManager::StopSucceededOnUIThread() { | |
| 672 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 673 VLOG(1) << "Stop succeeded (UI thread)"; | |
| 674 | |
| 675 base::AutoLock auto_lock(state_lock_); | |
| 676 if (state_ == kShutdown) | |
| 677 return; | |
| 678 | |
| 679 std::string extension_id = extension_id_in_use_; | |
| 680 ResetToIdleState(); | |
| 681 | |
| 682 content::NotificationService::current()->Notify( | |
| 683 chrome::NOTIFICATION_EXTENSION_SPEECH_INPUT_RECORDING_STOPPED, | |
| 684 // Guarded by the state_ == kShutdown check. | |
| 685 content::Source<Profile>(profile_), | |
| 686 content::Details<std::string>(&extension_id)); | |
| 687 } | |
| 688 | |
| 689 void SpeechInputExtensionManager::OnAudioLevelsChange(int session_id, | |
| 690 float volume, | |
| 691 float noise_volume) {} | |
| 692 | |
| 693 namespace extensions { | |
| 694 | |
| 695 SpeechInputAPI::SpeechInputAPI(Profile* profile) | |
| 696 : manager_(new SpeechInputExtensionManager(profile)) { | |
| 697 ExtensionFunctionRegistry* registry = | |
| 698 ExtensionFunctionRegistry::GetInstance(); | |
| 699 registry->RegisterFunction<StartSpeechInputFunction>(); | |
| 700 registry->RegisterFunction<StopSpeechInputFunction>(); | |
| 701 registry->RegisterFunction<IsRecordingSpeechInputFunction>(); | |
| 702 } | |
| 703 | |
| 704 SpeechInputAPI::~SpeechInputAPI() { | |
| 705 } | |
| 706 | |
| 707 void SpeechInputAPI::Shutdown() { | |
| 708 manager_->ShutdownOnUIThread(); | |
| 709 } | |
| 710 | |
| 711 static base::LazyInstance<ProfileKeyedAPIFactory<SpeechInputAPI> > | |
| 712 g_factory = LAZY_INSTANCE_INITIALIZER; | |
| 713 | |
| 714 // static | |
| 715 ProfileKeyedAPIFactory<SpeechInputAPI>* SpeechInputAPI::GetFactoryInstance() { | |
| 716 return &g_factory.Get(); | |
| 717 } | |
| 718 | |
| 719 } // namespace extensions | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 14230005:
Remove all code for chrome.experimental.speechInput extension API (Closed)
Base URL: https://src.chromium.org/svn/trunk/src/