mojo api for view based lockscreen

chrome/browser/chromeos/login/lock/screen_locker.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/chromeos/login/lock/screen_locker.h"
 
 #include <string>
 #include <vector>
 
 #include "ash/login/ui/lock_screen.h"
@@ skipping 24 matching lines @@
 #include "chrome/browser/chromeos/login/quick_unlock/quick_unlock_storage.h"
 #include "chrome/browser/chromeos/login/session/user_session_manager.h"
 #include "chrome/browser/chromeos/login/supervised/supervised_user_authentication.h"
 #include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
 #include "chrome/browser/chromeos/login/users/chrome_user_manager.h"
 #include "chrome/browser/chromeos/login/users/supervised_user_manager.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/signin/easy_unlock_service.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/ui/ash/ash_util.h"
+#include "chrome/browser/ui/ash/lock_screen_client_chromeos.h"
 #include "chrome/browser/ui/ash/session_controller_client.h"
 #include "chrome/browser/ui/webui/chromeos/login/screenlock_icon_provider.h"
 #include "chrome/browser/ui/webui/chromeos/login/screenlock_icon_source.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/grit/browser_resources.h"
 #include "chrome/grit/generated_resources.h"
 #include "chromeos/audio/chromeos_sounds.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/dbus/biod/constants.pb.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
@@ skipping 104 matching lines @@
   }
 
  private:
   bool session_started_;
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(ScreenLockObserver);
 };
 
 // Stubbed delegate that will eventually be replaced by mojo calls.
-class StubDelegate : public ScreenLocker::Delegate {
+class MojoDelegate : public ScreenLocker::Delegate {
  public:
-  StubDelegate() = default;
-  ~StubDelegate() override = default;
+  MojoDelegate() = default;
+  ~MojoDelegate() override = default;
 
   // ScreenLocker::Delegate:
   void SetPasswordInputEnabled(bool enabled) override { NOTIMPLEMENTED(); }
   void ShowErrorMessage(int error_msg_id,
                         HelpAppLauncher::HelpTopic help_topic_id) override {
-    NOTIMPLEMENTED();
+    // TODO(xiaoyinh): Complete the implementation here.
+    LockScreenClientChromeOS::Get()->ShowErrorMessage();
   }
-  void ClearErrors() override { NOTIMPLEMENTED(); }
+  void ClearErrors() override {
+    LockScreenClientChromeOS::Get()->ClearErrors();
+  }
   void AnimateAuthenticationSuccess() override { NOTIMPLEMENTED(); }
   void OnLockWebUIReady() override { NOTIMPLEMENTED(); }
   void OnLockBackgroundDisplayed() override { NOTIMPLEMENTED(); }
   void OnHeaderBarVisible() override { NOTIMPLEMENTED(); }
   void OnAshLockAnimationFinished() override { NOTIMPLEMENTED(); }
   void SetFingerprintState(const AccountId& account_id,
                            ScreenLocker::FingerprintState state) override {
     NOTIMPLEMENTED();
   }
   content::WebContents* GetWebContents() override { return nullptr; }
 
  private:
-  DISALLOW_COPY_AND_ASSIGN(StubDelegate);
+  DISALLOW_COPY_AND_ASSIGN(MojoDelegate);
 };
 
 ScreenLockObserver* g_screen_lock_observer = nullptr;
 
 }  // namespace
 
 // static
 ScreenLocker* ScreenLocker::screen_locker_ = nullptr;
 
 //////////////////////////////////////////////////////////////////////////////
@@ skipping 25 matching lines @@
 
 void ScreenLocker::Init() {
   input_method::InputMethodManager* imm =
       input_method::InputMethodManager::Get();
   saved_ime_state_ = imm->GetActiveIMEState();
   imm->SetState(saved_ime_state_->Clone());
 
   authenticator_ = UserSessionManager::GetInstance()->CreateAuthenticator(this);
   extended_authenticator_ = ExtendedAuthenticator::Create(this);
   if (IsUsingMdLogin()) {
     // Create delegate that will eventually call into the views-based lock

[jdufault, 2017/05/13 00:57:40]

nit: Can you update the comment?

// Create delegate that calls into the views-based lock screen via mojo.

[xiaoyinh(OOO Sep 11-29), 2017/05/15 20:13:05]

Done.

     // screen via mojo.
-    delegate_ = new StubDelegate();
+    delegate_ = new MojoDelegate();
     owns_delegate_ = true;
 
     // Create and display lock screen.
     // TODO(jdufault): Calling ash::ShowLockScreenInWidget should be a mojo
     // call. We should only set the session state to locked after the mojo call
     // has completed.
     if (ash::ShowLockScreen()) {
       session_manager::SessionManager::Get()->SetSessionState(
           session_manager::SessionState::LOCKED);
     }
@@ skipping 464 matching lines @@
     }
   }
 
   if (auth_status_consumer_) {
     AuthFailure failure(AuthFailure::UNLOCK_FAILED);
     auth_status_consumer_->OnAuthFailure(failure);
   }
 }
 
 }  // namespace chromeos