chrome/browser/search/hotword_service_factory.cc

   1 // Copyright 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/search/hotword_service_factory.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/prefs/pref_service.h"
   9 #include "chrome/browser/profiles/profile.h"
  10 #include "chrome/browser/search/hotword_service.h"
  11 #include "chrome/common/chrome_switches.h"
  12 #include "chrome/common/pref_names.h"
  13 #include "components/keyed_service/content/browser_context_dependency_manager.h"
  14 #include "components/pref_registry/pref_registry_syncable.h"
  15 #include "content/public/browser/browser_context.h"
  16 #include "content/public/browser/browser_thread.h"
  17
  18 using content::BrowserContext;
  19 using content::BrowserThread;
  20
  21 // static
  22 HotwordService* HotwordServiceFactory::GetForProfile(BrowserContext* context) {
  23   return static_cast<HotwordService*>(
  24       GetInstance()->GetServiceForBrowserContext(context, true));
  25 }
  26
  27 // static
  28 HotwordServiceFactory* HotwordServiceFactory::GetInstance() {
  29   return Singleton<HotwordServiceFactory>::get();
  30 }
  31
  32 // static
  33 bool HotwordServiceFactory::IsServiceAvailable(BrowserContext* context) {
  34   HotwordService* hotword_service = GetForProfile(context);
  35   return hotword_service && hotword_service->IsServiceAvailable();
  36 }
  37
  38 // static
  39 bool HotwordServiceFactory::IsHotwordAllowed(BrowserContext* context) {
  40   HotwordService* hotword_service = GetForProfile(context);
  41   return hotword_service && hotword_service->IsHotwordAllowed();
  42 }
  43
  44 // static
  45 bool HotwordServiceFactory::IsAlwaysOnAvailable() {
  46 #if defined(OS_CHROMEOS)
  47   if (HotwordService::IsHotwordHardwareAvailable())
  48     return true;
  49 #endif
  50   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
  51   return command_line->HasSwitch(switches::kEnableExperimentalHotwordHardware);
  52 }
  53
  54 // static
  55 int HotwordServiceFactory::GetCurrentError(BrowserContext* context) {
  56   HotwordService* hotword_service = GetForProfile(context);
  57   if (!hotword_service)
  58     return 0;
  59   return hotword_service->error_message();
  60 }
  61
  62 HotwordServiceFactory::HotwordServiceFactory()
  63     : BrowserContextKeyedServiceFactory(
  64         "HotwordService",
  65         BrowserContextDependencyManager::GetInstance()) {
  66   // No dependencies.
  67 }
  68
  69 HotwordServiceFactory::~HotwordServiceFactory() {
  70 }
  71
  72 void HotwordServiceFactory::UpdateMicrophoneState() {
  73   // In order to trigger the monitor, just call getAudioCaptureDevices.
  74   content::MediaStreamDevices devices =
  75     MediaCaptureDevicesDispatcher::GetInstance()->GetAudioCaptureDevices();
  76 }
  77
  78 void HotwordServiceFactory::RegisterProfilePrefs(
  79     user_prefs::PrefRegistrySyncable* prefs) {
  80   prefs->RegisterBooleanPref(prefs::kHotwordAudioLoggingEnabled,
  81                              false,
  82                              user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
  83   prefs->RegisterStringPref(prefs::kHotwordPreviousLanguage,
  84                             std::string(),
  85                             user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
  86   // Per-device settings (do not sync).
  87   prefs->RegisterBooleanPref(prefs::kHotwordSearchEnabled,
  88                              false,
  89                              user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
  90   prefs->RegisterBooleanPref(prefs::kHotwordAlwaysOnSearchEnabled,
  91                              false,
  92                              user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
  93   prefs->RegisterBooleanPref(prefs::kHotwordAlwaysOnNotificationSeen,
  94                              false,
  95                              user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
  96 }
  97
  98 KeyedService* HotwordServiceFactory::BuildServiceInstanceFor(
  99     BrowserContext* context) const {
 100   return new HotwordService(Profile::FromBrowserContext(context));
 101 }