chrome/browser/extensions/api/hotword_private/hotword_private_api.cc

   1 // Copyright 2014 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/extensions/api/hotword_private/hotword_private_api.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "base/prefs/pref_service.h"
   9 #include "chrome/browser/profiles/profile.h"
  10 #include "chrome/browser/search/hotword_client.h"
  11 #include "chrome/browser/search/hotword_service.h"
  12 #include "chrome/browser/search/hotword_service_factory.h"
  13 #include "chrome/common/pref_names.h"
  14 #include "extensions/browser/event_router.h"
  15
  16 namespace extensions {
  17
  18 namespace OnEnabledChanged =
  19     api::hotword_private::OnEnabledChanged;
  20
  21 static base::LazyInstance<
  22     BrowserContextKeyedAPIFactory<HotwordPrivateEventService> > g_factory =
  23     LAZY_INSTANCE_INITIALIZER;
  24
  25 HotwordPrivateEventService::HotwordPrivateEventService(
  26     content::BrowserContext* context)
  27     : profile_(Profile::FromBrowserContext(context)) {
  28   pref_change_registrar_.Init(profile_->GetPrefs());
  29   pref_change_registrar_.Add(
  30       prefs::kHotwordSearchEnabled,
  31       base::Bind(&HotwordPrivateEventService::OnEnabledChanged,
  32                  base::Unretained(this)));
  33 }
  34
  35 HotwordPrivateEventService::~HotwordPrivateEventService() {
  36 }
  37
  38 void HotwordPrivateEventService::Shutdown() {
  39 }
  40
  41 // static
  42 BrowserContextKeyedAPIFactory<HotwordPrivateEventService>*
  43 HotwordPrivateEventService::GetFactoryInstance() {
  44   return g_factory.Pointer();
  45 }
  46
  47 // static
  48 const char* HotwordPrivateEventService::service_name() {
  49   return "HotwordPrivateEventService";
  50 }
  51
  52 void HotwordPrivateEventService::OnEnabledChanged(
  53     const std::string& pref_name) {
  54   DCHECK_EQ(pref_name, std::string(prefs::kHotwordSearchEnabled));
  55   SignalEvent(OnEnabledChanged::kEventName);
  56 }
  57
  58 void HotwordPrivateEventService::OnHotwordSessionRequested() {
  59   SignalEvent(api::hotword_private::OnHotwordSessionRequested::kEventName);
  60 }
  61
  62 void HotwordPrivateEventService::OnHotwordSessionStopped() {
  63   SignalEvent(api::hotword_private::OnHotwordSessionStopped::kEventName);
  64 }
  65
  66 void HotwordPrivateEventService::SignalEvent(const std::string& event_name) {
  67   EventRouter* router = EventRouter::Get(profile_);
  68   if (!router || !router->HasEventListener(event_name))
  69     return;
  70   scoped_ptr<base::ListValue> args(new base::ListValue());
  71   scoped_ptr<Event> event(new Event(event_name, args.Pass()));
  72   router->BroadcastEvent(event.Pass());
  73 }
  74
  75 bool HotwordPrivateSetEnabledFunction::RunSync() {
  76   scoped_ptr<api::hotword_private::SetEnabled::Params> params(
  77       api::hotword_private::SetEnabled::Params::Create(*args_));
  78   EXTENSION_FUNCTION_VALIDATE(params.get());
  79
  80   PrefService* prefs = GetProfile()->GetPrefs();
  81   prefs->SetBoolean(prefs::kHotwordSearchEnabled, params->state);
  82   return true;
  83 }
  84
  85 bool HotwordPrivateSetAudioLoggingEnabledFunction::RunSync() {
  86   scoped_ptr<api::hotword_private::SetEnabled::Params> params(
  87       api::hotword_private::SetEnabled::Params::Create(*args_));
  88   EXTENSION_FUNCTION_VALIDATE(params.get());
  89
  90   PrefService* prefs = GetProfile()->GetPrefs();
  91   prefs->SetBoolean(prefs::kHotwordAudioLoggingEnabled, params->state);
  92   return true;
  93 }
  94
  95 bool HotwordPrivateGetStatusFunction::RunSync() {
  96   api::hotword_private::StatusDetails result;
  97
  98   HotwordService* hotword_service =
  99       HotwordServiceFactory::GetForProfile(GetProfile());
 100   if (!hotword_service)
 101     result.available = false;
 102   else
 103     result.available = hotword_service->IsServiceAvailable();
 104
 105   PrefService* prefs = GetProfile()->GetPrefs();
 106   result.enabled_set = prefs->HasPrefPath(prefs::kHotwordSearchEnabled);
 107   result.enabled = prefs->GetBoolean(prefs::kHotwordSearchEnabled);
 108   result.audio_logging_enabled = false;
 109   if (hotword_service)
 110     result.audio_logging_enabled = hotword_service->IsOptedIntoAudioLogging();
 111
 112   SetResult(result.ToValue().release());
 113   return true;
 114 }
 115
 116 bool HotwordPrivateSetHotwordSessionStateFunction::RunSync() {
 117   scoped_ptr<api::hotword_private::SetHotwordSessionState::Params> params(
 118       api::hotword_private::SetHotwordSessionState::Params::Create(*args_));
 119   EXTENSION_FUNCTION_VALIDATE(params.get());
 120
 121   HotwordService* hotword_service =
 122       HotwordServiceFactory::GetForProfile(GetProfile());
 123   if (hotword_service && hotword_service->client())
 124     hotword_service->client()->OnHotwordStateChanged(params->started);
 125   return true;
 126 }
 127
 128 bool HotwordPrivateNotifyHotwordRecognitionFunction::RunSync() {
 129   HotwordService* hotword_service =
 130       HotwordServiceFactory::GetForProfile(GetProfile());
 131   if (hotword_service && hotword_service->client())
 132     hotword_service->client()->OnHotwordRecognized();
 133   return true;
 134 }
 135
 136 }  // namespace extensions