[Easy signin] Add method to get user info to easyUnlockPrivate

chrome/browser/signin/easy_unlock_service.cc

 // Copyright 2014 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/signin/easy_unlock_service.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/prefs/pref_service.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/signin/easy_unlock_screenlock_state_handler.h"
 #include "chrome/browser/signin/easy_unlock_service_factory.h"
 #include "chrome/browser/signin/easy_unlock_service_observer.h"
 #include "chrome/browser/signin/screenlock_bridge.h"
 #include "chrome/common/chrome_switches.h"
+#include "chrome/common/extensions/api/easy_unlock_private.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/pref_names.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 #include "device/bluetooth/bluetooth_adapter_factory.h"
+#include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/common/one_shot_event.h"
 #include "grit/browser_resources.h"
 
 #if defined(OS_CHROMEOS)
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/power_manager_client.h"
 #endif
 
@@ skipping 85 matching lines @@
 
   EasyUnlockService* service_;
 
   DISALLOW_COPY_AND_ASSIGN(PowerMonitor);
 };
 #endif
 
 EasyUnlockService::EasyUnlockService(Profile* profile)
     : profile_(profile),
       bluetooth_detector_(new BluetoothDetector(this)),
+      shut_down_(false),
       weak_ptr_factory_(this) {
   extensions::ExtensionSystem::Get(profile_)->ready().Post(
       FROM_HERE,
       base::Bind(&EasyUnlockService::Initialize,
                  weak_ptr_factory_.GetWeakPtr()));
 }
 
 EasyUnlockService::~EasyUnlockService() {
 }
 
@@ skipping 12 matching lines @@
       prefs::kEasyUnlockPairing,
       new base::DictionaryValue(),
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
   registry->RegisterBooleanPref(
       prefs::kEasyUnlockAllowed,
       true,
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 bool EasyUnlockService::IsAllowed() {
+  if (shut_down_)
+    return false;
+
   if (!IsAllowedInternal())
     return false;
 
 #if defined(OS_CHROMEOS)
   if (!profile_->GetPrefs()->GetBoolean(prefs::kEasyUnlockAllowed))
     return false;
 
   // Respect existing policy and skip finch test.
   if (!profile_->GetPrefs()->IsManagedPreference(prefs::kEasyUnlockAllowed)) {
     // It is disabled when the trial exists and is in "Disable" group.
@@ skipping 25 matching lines @@
 }
 
 void EasyUnlockService::AddObserver(EasyUnlockServiceObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void EasyUnlockService::RemoveObserver(EasyUnlockServiceObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
+void  EasyUnlockService::Shutdown() {
+  if (shut_down_)
+    return;
+  shut_down_ = true;
+
+  ShutdownInternal();
+
+  weak_ptr_factory_.InvalidateWeakPtrs();
+
+  ResetScreenlockStateHandler();
+  bluetooth_detector_.reset();
+#if defined(OS_CHROMEOS)
+  power_monitor_.reset();
+#endif
+}
+
 void EasyUnlockService::LoadApp() {
   DCHECK(IsAllowed());
 
 #if defined(GOOGLE_CHROME_BUILD)
   base::FilePath easy_unlock_path;
 #if defined(OS_CHROMEOS)
   easy_unlock_path = base::FilePath("/usr/share/chromeos-assets/easy_unlock");
 #endif  // defined(OS_CHROMEOS)
 
 #ifndef NDEBUG
   // Only allow app path override switch for debug build.
   const CommandLine* command_line = CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(switches::kEasyUnlockAppPath)) {
     easy_unlock_path =
         command_line->GetSwitchValuePath(switches::kEasyUnlockAppPath);
   }
 #endif  // !defined(NDEBUG)
 
   if (!easy_unlock_path.empty()) {
     extensions::ComponentLoader* loader = GetComponentLoader(profile_);
     if (!loader->Exists(extension_misc::kEasyUnlockAppId))
       loader->Add(IDR_EASY_UNLOCK_MANIFEST, easy_unlock_path);
 
     ExtensionService* extension_service =
         extensions::ExtensionSystem::Get(profile_)->extension_service();
     extension_service->EnableExtension(extension_misc::kEasyUnlockAppId);
+
+    NotifyUserUpdated();
   }
 #endif  // defined(GOOGLE_CHROME_BUILD)
 }
 
 void EasyUnlockService::DisableAppIfLoaded() {
   // Make sure lock screen state set by the extension gets reset.
-  screenlock_state_handler_.reset();
+  ResetScreenlockStateHandler();
 
   extensions::ComponentLoader* loader = GetComponentLoader(profile_);
   if (!loader->Exists(extension_misc::kEasyUnlockAppId))
     return;
 
   ExtensionService* extension_service =
       extensions::ExtensionSystem::Get(profile_)->extension_service();
   extension_service->DisableExtension(extension_misc::kEasyUnlockAppId,
                                       extensions::Extension::DISABLE_RELOAD);
 }
 
+void EasyUnlockService::UnloadApp() {
+  GetComponentLoader(profile_)->Remove(extension_misc::kEasyUnlockAppId);
+}
+
 void EasyUnlockService::ReloadApp() {
   // Make sure lock screen state set by the extension gets reset.
-  screenlock_state_handler_.reset();
+  ResetScreenlockStateHandler();
 
-  if (GetComponentLoader(profile_)->Exists(extension_misc::kEasyUnlockAppId)) {
-    extensions::ExtensionSystem* extension_system =
-        extensions::ExtensionSystem::Get(profile_);
-    extension_system->extension_service()->ReloadExtension(
-        extension_misc::kEasyUnlockAppId);
-  }
+  if (!GetComponentLoader(profile_)->Exists(extension_misc::kEasyUnlockAppId))
+    return;
+  extensions::ExtensionSystem* extension_system =
+      extensions::ExtensionSystem::Get(profile_);
+  extension_system->extension_service()->ReloadExtension(
+      extension_misc::kEasyUnlockAppId);
+  NotifyUserUpdated();
 }
 
 void EasyUnlockService::UpdateAppState() {
   if (IsAllowed()) {
     LoadApp();
 
 #if defined(OS_CHROMEOS)
   if (!power_monitor_)
     power_monitor_.reset(new PowerMonitor(this));
 #endif
   } else {
     DisableAppIfLoaded();
 #if defined(OS_CHROMEOS)
     power_monitor_.reset();
 #endif
   }
 }
 
+void EasyUnlockService::NotifyUserUpdated() {
+  std::string user_id = GetUserEmail();
+  if (user_id.empty())
+    return;
+
+  // Notify the easy unlock app that the user info changed.
+  extensions::api::easy_unlock_private::UserInfo info;
+  info.user_id = user_id;
+  info.logged_in = GetType() == TYPE_REGULAR;
+  info.data_ready = GetRemoteDevices() != NULL;
+
+  scoped_ptr<base::ListValue> args(new base::ListValue());
+  args->Append(info.ToValue().release());
+
+  scoped_ptr<extensions::Event> event(new extensions::Event(
+      extensions::api::easy_unlock_private::OnUserInfoUpdated::kEventName,
+      args.Pass()));
+
+  extensions::EventRouter::Get(profile_)->DispatchEventToExtension(
+       extension_misc::kEasyUnlockAppId, event.Pass());
+}
+
 void EasyUnlockService::NotifyTurnOffOperationStatusChanged() {
   FOR_EACH_OBSERVER(
       EasyUnlockServiceObserver, observers_, OnTurnOffOperationStatusChanged());
 }
 
+void EasyUnlockService::ResetScreenlockStateHandler() {
+  screenlock_state_handler_.reset();
+}
+
 void EasyUnlockService::Initialize() {
   InitializeInternal();
 
 #if defined(OS_CHROMEOS)
   // Only start Bluetooth detection for ChromeOS since the feature is
   // only offered on ChromeOS. Enabling this on non-ChromeOS platforms
   // previously introduced a performance regression: http://crbug.com/404482
   // Make sure not to reintroduce a performance regression if re-enabling on
   // additional platforms.
   // TODO(xiyuan): Revisit when non-chromeos platforms are supported.
   bluetooth_detector_->Initialize();
 #endif  // defined(OS_CHROMEOS)
 }
 
 void EasyUnlockService::OnBluetoothAdapterPresentChanged() {
   UpdateAppState();
 }