Move TTS extension API to chrome/browser/speech/

chrome/browser/extensions/extension_tts_api.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/extensions/extension_tts_api.h"
-
-#include <string>
-
-#include "base/values.h"
-#include "chrome/browser/extensions/extension_tts_api_constants.h"
-#include "chrome/browser/extensions/extension_tts_api_controller.h"
-#include "chrome/browser/profiles/profile.h"
-#include "ui/base/l10n/l10n_util.h"
-
-namespace constants = extension_tts_api_constants;
-
-bool ExtensionTtsSpeakFunction::RunImpl() {
-  std::string text;
-  EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &text));
-  if (text.size() > 32768) {
-    error_ = constants::kErrorUtteranceTooLong;
-    return false;
-  }
-
-  scoped_ptr<DictionaryValue> options(new DictionaryValue());
-  if (args_->GetSize() >= 2) {
-    DictionaryValue* temp_options = NULL;
-    if (args_->GetDictionary(1, &temp_options))
-      options.reset(temp_options->DeepCopy());
-  }
-
-  std::string voice_name;
-  if (options->HasKey(constants::kVoiceNameKey)) {
-    EXTENSION_FUNCTION_VALIDATE(
-        options->GetString(constants::kVoiceNameKey, &voice_name));
-  }
-
-  std::string lang;
-  if (options->HasKey(constants::kLangKey))
-    EXTENSION_FUNCTION_VALIDATE(options->GetString(constants::kLangKey, &lang));
-  if (!lang.empty() && !l10n_util::IsValidLocaleSyntax(lang)) {
-    error_ = constants::kErrorInvalidLang;
-    return false;
-  }
-
-  std::string gender;
-  if (options->HasKey(constants::kGenderKey))
-    EXTENSION_FUNCTION_VALIDATE(
-        options->GetString(constants::kGenderKey, &gender));
-  if (!gender.empty() &&
-      gender != constants::kGenderFemale &&
-      gender != constants::kGenderMale) {
-    error_ = constants::kErrorInvalidGender;
-    return false;
-  }
-
-  double rate = 1.0;
-  if (options->HasKey(constants::kRateKey)) {
-    EXTENSION_FUNCTION_VALIDATE(
-        options->GetDouble(constants::kRateKey, &rate));
-    if (rate < 0.1 || rate > 10.0) {
-      error_ = constants::kErrorInvalidRate;
-      return false;
-    }
-  }
-
-  double pitch = 1.0;
-  if (options->HasKey(constants::kPitchKey)) {
-    EXTENSION_FUNCTION_VALIDATE(
-        options->GetDouble(constants::kPitchKey, &pitch));
-    if (pitch < 0.0 || pitch > 2.0) {
-      error_ = constants::kErrorInvalidPitch;
-      return false;
-    }
-  }
-
-  double volume = 1.0;
-  if (options->HasKey(constants::kVolumeKey)) {
-    EXTENSION_FUNCTION_VALIDATE(
-        options->GetDouble(constants::kVolumeKey, &volume));
-    if (volume < 0.0 || volume > 1.0) {
-      error_ = constants::kErrorInvalidVolume;
-      return false;
-    }
-  }
-
-  bool can_enqueue = false;
-  if (options->HasKey(constants::kEnqueueKey)) {
-    EXTENSION_FUNCTION_VALIDATE(
-        options->GetBoolean(constants::kEnqueueKey, &can_enqueue));
-  }
-
-  std::set<std::string> required_event_types;
-  if (options->HasKey(constants::kRequiredEventTypesKey)) {
-    ListValue* list;
-    EXTENSION_FUNCTION_VALIDATE(
-        options->GetList(constants::kRequiredEventTypesKey, &list));
-    for (size_t i = 0; i < list->GetSize(); i++) {
-      std::string event_type;
-      if (!list->GetString(i, &event_type))
-        required_event_types.insert(event_type);
-    }
-  }
-
-  std::set<std::string> desired_event_types;
-  if (options->HasKey(constants::kDesiredEventTypesKey)) {
-    ListValue* list;
-    EXTENSION_FUNCTION_VALIDATE(
-        options->GetList(constants::kDesiredEventTypesKey, &list));
-    for (size_t i = 0; i < list->GetSize(); i++) {
-      std::string event_type;
-      if (!list->GetString(i, &event_type))
-        desired_event_types.insert(event_type);
-    }
-  }
-
-  std::string voice_extension_id;
-  if (options->HasKey(constants::kExtensionIdKey)) {
-    EXTENSION_FUNCTION_VALIDATE(
-        options->GetString(constants::kExtensionIdKey, &voice_extension_id));
-  }
-
-  int src_id = -1;
-  if (options->HasKey(constants::kSrcIdKey)) {
-    EXTENSION_FUNCTION_VALIDATE(
-        options->GetInteger(constants::kSrcIdKey, &src_id));
-  }
-
-  // If we got this far, the arguments were all in the valid format, so
-  // send the success response to the callback now - this ensures that
-  // the callback response always arrives before events, which makes
-  // the behavior more predictable and easier to write unit tests for too.
-  SendResponse(true);
-
-  UtteranceContinuousParameters continuous_params;
-  continuous_params.rate = rate;
-  continuous_params.pitch = pitch;
-  continuous_params.volume = volume;
-
-  Utterance* utterance = new Utterance(profile());
-  utterance->set_text(text);
-  utterance->set_voice_name(voice_name);
-  utterance->set_src_extension_id(extension_id());
-  utterance->set_src_id(src_id);
-  utterance->set_src_url(source_url());
-  utterance->set_lang(lang);
-  utterance->set_gender(gender);
-  utterance->set_continuous_parameters(continuous_params);
-  utterance->set_can_enqueue(can_enqueue);
-  utterance->set_required_event_types(required_event_types);
-  utterance->set_desired_event_types(desired_event_types);
-  utterance->set_extension_id(voice_extension_id);
-  utterance->set_options(options.get());
-
-  ExtensionTtsController* controller = ExtensionTtsController::GetInstance();
-  controller->SpeakOrEnqueue(utterance);
-  return true;
-}
-
-bool ExtensionTtsStopSpeakingFunction::RunImpl() {
-  ExtensionTtsController::GetInstance()->Stop();
-  return true;
-}
-
-bool ExtensionTtsIsSpeakingFunction::RunImpl() {
-  result_.reset(Value::CreateBooleanValue(
-      ExtensionTtsController::GetInstance()->IsSpeaking()));
-  return true;
-}
-
-bool ExtensionTtsGetVoicesFunction::RunImpl() {
-  result_.reset(ExtensionTtsController::GetInstance()->GetVoices(profile()));
-  return true;
-}