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      1 // Copyright 2013 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 #ifndef CHROME_BROWSER_CHROMEOS_APP_MODE_STARTUP_APP_LAUNCHER_H_
      6 #define CHROME_BROWSER_CHROMEOS_APP_MODE_STARTUP_APP_LAUNCHER_H_
      7 
      8 #include <string>
      9 
     10 #include "base/basictypes.h"
     11 #include "base/memory/ref_counted.h"
     12 #include "base/memory/weak_ptr.h"
     13 #include "base/timer/timer.h"
     14 #include "chrome/browser/chromeos/app_mode/kiosk_app_launch_error.h"
     15 #include "chrome/browser/signin/oauth2_token_service.h"
     16 #include "net/base/network_change_notifier.h"
     17 #include "ui/base/events/event_handler.h"
     18 
     19 class Profile;
     20 
     21 namespace extensions {
     22 class WebstoreStandaloneInstaller;
     23 }
     24 
     25 namespace chromeos {
     26 
     27 // Launches the app at startup. The flow roughly looks like this:
     28 // - Starts the app launch splash screen;
     29 // - Checks if the app is installed in user profile (aka app profile);
     30 // - If the app is installed, launch it and finish the flow;
     31 // - If not installed, prepare to start install by checking network online
     32 //   state;
     33 // - If network gets online in time, start to install the app from web store;
     34 // - If all goes good, launches the app and finish the flow;
     35 // If anything goes wrong, it exits app mode and goes back to login screen.
     36 class StartupAppLauncher
     37     : public base::SupportsWeakPtr<StartupAppLauncher>,
     38       public OAuth2TokenService::Observer,
     39       public net::NetworkChangeNotifier::NetworkChangeObserver,
     40       public ui::EventHandler {
     41  public:
     42   StartupAppLauncher(Profile* profile, const std::string& app_id);
     43 
     44   // Starts app launcher. If |skip_auth_setup| is set, we will skip
     45   // TokenService initialization.
     46   void Start();
     47 
     48  private:
     49   // OAuth parameters from /home/chronos/kiosk_auth file.
     50   struct KioskOAuthParams {
     51     std::string refresh_token;
     52     std::string client_id;
     53     std::string client_secret;
     54   };
     55 
     56   // Private dtor because this class manages its own lifetime.
     57   virtual ~StartupAppLauncher();
     58 
     59   void Cleanup();
     60   void OnLaunchSuccess();
     61   void OnLaunchFailure(KioskAppLaunchError::Error error);
     62 
     63   void Launch();
     64 
     65   void BeginInstall();
     66   void InstallCallback(bool success, const std::string& error);
     67 
     68   void InitializeTokenService();
     69   void InitializeNetwork();
     70 
     71   void OnNetworkWaitTimedout();
     72 
     73   void StartLoadingOAuthFile();
     74   static void LoadOAuthFileOnBlockingPool(KioskOAuthParams* auth_params);
     75   void OnOAuthFileLoaded(KioskOAuthParams* auth_params);
     76 
     77   // OAuth2TokenService::Observer overrides.
     78   virtual void OnRefreshTokenAvailable(const std::string& account_id) OVERRIDE;
     79   virtual void OnRefreshTokensLoaded() OVERRIDE;
     80 
     81   // net::NetworkChangeNotifier::NetworkChangeObserver overrides:
     82   virtual void OnNetworkChanged(
     83       net::NetworkChangeNotifier::ConnectionType type) OVERRIDE;
     84 
     85   // ui::EventHandler overrides:
     86   virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
     87 
     88   Profile* profile_;
     89   const std::string app_id_;
     90 
     91   int64 launch_splash_start_time_;
     92 
     93   scoped_refptr<extensions::WebstoreStandaloneInstaller> installer_;
     94   base::OneShotTimer<StartupAppLauncher> network_wait_timer_;
     95   KioskOAuthParams auth_params_;
     96 
     97   DISALLOW_COPY_AND_ASSIGN(StartupAppLauncher);
     98 };
     99 
    100 }  // namespace chromeos
    101 
    102 #endif  // CHROME_BROWSER_CHROMEOS_APP_MODE_STARTUP_APP_LAUNCHER_H_
    103