Refactor kiosk app launch to be part of login screen UI flow.

chrome/browser/chromeos/app_mode/startup_app_launcher.h

-// Copyright 2013 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.
-
-#ifndef CHROME_BROWSER_CHROMEOS_APP_MODE_STARTUP_APP_LAUNCHER_H_
-#define CHROME_BROWSER_CHROMEOS_APP_MODE_STARTUP_APP_LAUNCHER_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "base/timer/timer.h"
-#include "chrome/browser/chromeos/app_mode/kiosk_app_launch_error.h"
-#include "chrome/browser/signin/oauth2_token_service.h"
-#include "net/base/network_change_notifier.h"
-#include "ui/base/events/event_handler.h"
-
-class Profile;
-
-namespace extensions {
-class WebstoreStandaloneInstaller;
-}
-
-namespace chromeos {
-
-// Launches the app at startup. The flow roughly looks like this:
-// - Starts the app launch splash screen;
-// - Checks if the app is installed in user profile (aka app profile);
-// - If the app is installed, launch it and finish the flow;
-// - If not installed, prepare to start install by checking network online
-//   state;
-// - If network gets online in time, start to install the app from web store;
-// - If all goes good, launches the app and finish the flow;
-// If anything goes wrong, it exits app mode and goes back to login screen.
-class StartupAppLauncher
-    : public base::SupportsWeakPtr<StartupAppLauncher>,
-      public OAuth2TokenService::Observer,
-      public net::NetworkChangeNotifier::NetworkChangeObserver,
-      public ui::EventHandler {
- public:
-  StartupAppLauncher(Profile* profile, const std::string& app_id);
-
-  // Starts app launcher. If |skip_auth_setup| is set, we will skip
-  // TokenService initialization.
-  void Start();
-
- private:
-  // OAuth parameters from /home/chronos/kiosk_auth file.
-  struct KioskOAuthParams {
-    std::string refresh_token;
-    std::string client_id;
-    std::string client_secret;
-  };
-
-  // Private dtor because this class manages its own lifetime.
-  virtual ~StartupAppLauncher();
-
-  void Cleanup();
-  void OnLaunchSuccess();
-  void OnLaunchFailure(KioskAppLaunchError::Error error);
-
-  void Launch();
-
-  void BeginInstall();
-  void InstallCallback(bool success, const std::string& error);
-
-  void InitializeTokenService();
-  void InitializeNetwork();
-
-  void OnNetworkWaitTimedout();
-
-  void StartLoadingOAuthFile();
-  static void LoadOAuthFileOnBlockingPool(KioskOAuthParams* auth_params);
-  void OnOAuthFileLoaded(KioskOAuthParams* auth_params);
-
-  // OAuth2TokenService::Observer overrides.
-  virtual void OnRefreshTokenAvailable(const std::string& account_id) OVERRIDE;
-  virtual void OnRefreshTokensLoaded() OVERRIDE;
-
-  // net::NetworkChangeNotifier::NetworkChangeObserver overrides:
-  virtual void OnNetworkChanged(
-      net::NetworkChangeNotifier::ConnectionType type) OVERRIDE;
-
-  // ui::EventHandler overrides:
-  virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
-
-  Profile* profile_;
-  const std::string app_id_;
-
-  int64 launch_splash_start_time_;
-
-  scoped_refptr<extensions::WebstoreStandaloneInstaller> installer_;
-  base::OneShotTimer<StartupAppLauncher> network_wait_timer_;
-  KioskOAuthParams auth_params_;
-
-  DISALLOW_COPY_AND_ASSIGN(StartupAppLauncher);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_APP_MODE_STARTUP_APP_LAUNCHER_H_