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      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/signin/screenlock_bridge.h"
      6 
      7 #include "base/logging.h"
      8 #include "chrome/browser/profiles/profile_window.h"
      9 #include "chrome/browser/signin/signin_manager_factory.h"
     10 #include "components/signin/core/browser/signin_manager.h"
     11 
     12 #if defined(OS_CHROMEOS)
     13 #include "chromeos/dbus/dbus_thread_manager.h"
     14 #include "chromeos/dbus/session_manager_client.h"
     15 #endif
     16 
     17 namespace {
     18 
     19 base::LazyInstance<ScreenlockBridge> g_screenlock_bridge_bridge_instance =
     20     LAZY_INSTANCE_INITIALIZER;
     21 
     22 }  // namespace
     23 
     24 // static
     25 ScreenlockBridge* ScreenlockBridge::Get() {
     26   return g_screenlock_bridge_bridge_instance.Pointer();
     27 }
     28 
     29 // static
     30 std::string ScreenlockBridge::GetAuthenticatedUserEmail(Profile* profile) {
     31   // |profile| has to be a signed-in profile with SigninManager already
     32   // created. Otherwise, just crash to collect stack.
     33   SigninManagerBase* signin_manager =
     34       SigninManagerFactory::GetForProfileIfExists(profile);
     35   return signin_manager->GetAuthenticatedUsername();
     36 }
     37 
     38 ScreenlockBridge::ScreenlockBridge() : lock_handler_(NULL) {
     39 }
     40 
     41 ScreenlockBridge::~ScreenlockBridge() {
     42 }
     43 
     44 void ScreenlockBridge::SetLockHandler(LockHandler* lock_handler) {
     45   DCHECK(lock_handler_ == NULL || lock_handler == NULL);
     46   lock_handler_ = lock_handler;
     47   if (lock_handler_)
     48     FOR_EACH_OBSERVER(Observer, observers_, OnScreenDidLock());
     49   else
     50     FOR_EACH_OBSERVER(Observer, observers_, OnScreenDidUnlock());
     51 }
     52 
     53 bool ScreenlockBridge::IsLocked() const {
     54   return lock_handler_ != NULL;
     55 }
     56 
     57 void ScreenlockBridge::Lock(Profile* profile) {
     58 #if defined(OS_CHROMEOS)
     59   chromeos::SessionManagerClient* session_manager =
     60       chromeos::DBusThreadManager::Get()->GetSessionManagerClient();
     61   session_manager->RequestLockScreen();
     62 #else
     63   profiles::LockProfile(profile);
     64 #endif
     65 }
     66 
     67 void ScreenlockBridge::Unlock(Profile* profile) {
     68   if (lock_handler_)
     69     lock_handler_->Unlock(GetAuthenticatedUserEmail(profile));
     70 }
     71 
     72 void ScreenlockBridge::AddObserver(Observer* observer) {
     73   observers_.AddObserver(observer);
     74 }
     75 
     76 void ScreenlockBridge::RemoveObserver(Observer* observer) {
     77   observers_.RemoveObserver(observer);
     78 }
     79