Hook up ProximityAuthSystem in EasyUnlockService.

components/proximity_auth/proximity_auth_system.cc

Index: components/proximity_auth/proximity_auth_system.cc
diff --git a/components/proximity_auth/proximity_auth_system.cc b/components/proximity_auth/proximity_auth_system.cc
index 4279f47107aa63a987f336f6d81e6390c529702a..ba848a6868fba39871b38436373e3c6ef99585bd 100644
--- a/components/proximity_auth/proximity_auth_system.cc
+++ b/components/proximity_auth/proximity_auth_system.cc
@@ -4,18 +4,114 @@
 
 #include "components/proximity_auth/proximity_auth_system.h"
 
+#include "base/thread_task_runner_handle.h"
+#include "base/time/default_tick_clock.h"
+#include "components/proximity_auth/logging/logging.h"
+#include "components/proximity_auth/proximity_auth_client.h"
+#include "components/proximity_auth/proximity_monitor_impl.h"
+#include "components/proximity_auth/remote_device_life_cycle_impl.h"
+#include "components/proximity_auth/unlock_manager.h"
+
 namespace proximity_auth {
 
+namespace {
+
+// The time to wait after the device wakes up before beginning to connect to the
+// remote device.
+const int kWakeUpTimeoutSeconds = 2;
+
+}  // namespace
+
 ProximityAuthSystem::ProximityAuthSystem(
-    const std::vector<RemoteDevice>& remote_devices)
-    : remote_devices_(remote_devices) {
-}
+    RemoteDevice remote_device,
+    ProximityAuthClient* proximity_auth_client)
+    : remote_device_(remote_device),
+      proximity_auth_client_(proximity_auth_client),
+      unlock_manager_(new UnlockManager(
+          UnlockManager::ScreenlockType::SESSION_LOCK,
+          make_scoped_ptr<ProximityMonitor>(new ProximityMonitorImpl(
+              remote_device,
+              make_scoped_ptr(new base::DefaultTickClock()))),
+          proximity_auth_client)),
+      suspended_(false),
+      weak_ptr_factory_(this) {}
 
 ProximityAuthSystem::~ProximityAuthSystem() {
+  ScreenlockBridge::Get()->RemoveObserver(this);
+  unlock_manager_->SetRemoteDeviceLifeCycle(nullptr);
+}
+
+void ProximityAuthSystem::Start() {
+  ScreenlockBridge::Get()->AddObserver(this);
+  if (remote_device_.user_id == ScreenlockBridge::Get()->GetFocusedUser())
+    OnFocusedUserChanged(ScreenlockBridge::Get()->GetFocusedUser());
+}
+
+void ProximityAuthSystem::OnAuthAttempted(const std::string& user_id) {
+  // TODO(tengs): There is no reason to pass the |user_id| argument anymore.
+  unlock_manager_->OnAuthAttempted(ScreenlockBridge::LockHandler::USER_CLICK);
+}
+
+void ProximityAuthSystem::OnSuspend() {
+  PA_LOG(INFO) << "Preparing for device suspension.";
+  DCHECK(!suspended_);
+  suspended_ = true;
+  remote_device_life_cycle_.reset();
+}
+
+void ProximityAuthSystem::OnSuspendDone() {
+  PA_LOG(INFO) << "Device resumed from suspension.";
+  DCHECK(suspended_);
+
+  // TODO(tengs): On ChromeOS, the system's Bluetooth adapter is invalidated
+  // when the system suspends. However, Chrome does not receive this
+  // notification until a second or so after the system wakes up. That means
+  // using the adapter during this time will be problematic, so we wait instead.
+  // See crbug.com/537057.
+  proximity_auth_client_->UpdateScreenlockState(
+      ScreenlockState::BLUETOOTH_CONNECTING);
+  base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+      FROM_HERE, base::Bind(&ProximityAuthSystem::ResumeAfterWakeUpTimeout,
+                            weak_ptr_factory_.GetWeakPtr()),
+      base::TimeDelta::FromSeconds(kWakeUpTimeoutSeconds));
+}
+
+void ProximityAuthSystem::ResumeAfterWakeUpTimeout() {
+  PA_LOG(INFO) << "Resume after suspend";
+  suspended_ = false;
+  OnFocusedUserChanged(ScreenlockBridge::Get()->GetFocusedUser());
+}
+
+void ProximityAuthSystem::OnLifeCycleStateChanged(
+    RemoteDeviceLifeCycle::State old_state,
+    RemoteDeviceLifeCycle::State new_state) {
+  unlock_manager_->OnLifeCycleStateChanged();
+}
+
+void ProximityAuthSystem::OnScreenDidLock(
+    ScreenlockBridge::LockHandler::ScreenType screen_type) {
+  OnFocusedUserChanged(ScreenlockBridge::Get()->GetFocusedUser());
+}
+
+void ProximityAuthSystem::OnScreenDidUnlock(
+    ScreenlockBridge::LockHandler::ScreenType screen_type) {
+  unlock_manager_->SetRemoteDeviceLifeCycle(nullptr);
+  remote_device_life_cycle_.reset();
 }
 
-const std::vector<RemoteDevice>& ProximityAuthSystem::GetRemoteDevices() {
-  return remote_devices_;
+void ProximityAuthSystem::OnFocusedUserChanged(const std::string& user_id) {
+  if (!user_id.empty() && remote_device_.user_id != user_id) {
+    PA_LOG(INFO) << "Different user focused, destroying RemoteDeviceLifeCycle.";
+    unlock_manager_->SetRemoteDeviceLifeCycle(nullptr);
+    remote_device_life_cycle_.reset();
+  } else if (!remote_device_life_cycle_ && !suspended_) {
+    PA_LOG(INFO) << "Creating RemoteDeviceLifeCycle for focused user.";
+    remote_device_life_cycle_.reset(
+        new RemoteDeviceLifeCycleImpl(remote_device_, proximity_auth_client_));
+    unlock_manager_->SetRemoteDeviceLifeCycle(remote_device_life_cycle_.get());
+    remote_device_life_cycle_->AddObserver(this);
+    remote_device_life_cycle_->Start();
+  }
 }
 
 }  // proximity_auth