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_UI_WEBUI_CHROMEOS_LOGIN_GAIA_SCREEN_HANDLER_H_ 6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_GAIA_SCREEN_HANDLER_H_ 7 8 #include "base/basictypes.h" 9 #include "base/command_line.h" 10 #include "base/memory/ref_counted.h" 11 #include "chrome/browser/ui/webui/chromeos/login/network_state_informer.h" 12 #include "net/base/net_errors.h" 13 14 namespace chromeos { 15 16 class SigninScreenHandler; 17 18 // A class that's used to specify the way how Gaia should be loaded. 19 struct GaiaContext { 20 GaiaContext(); 21 22 // Forces Gaia to reload. 23 bool force_reload; 24 25 // Whether local verison of Gaia is used. 26 bool is_local; 27 28 // True if password was changed for the current user. 29 bool password_changed; 30 31 // True if user pods can be displyed. 32 bool show_users; 33 34 // Whether Gaia should be loaded in offline mode. 35 bool use_offline; 36 37 // True if user list is non-empty. 38 bool has_users; 39 40 // Email of current user. 41 std::string email; 42 }; 43 44 // A class that handles WebUI hooks in Gaia screen. 45 class GaiaScreenHandler : public BaseScreenHandler { 46 public: 47 enum FrameState { 48 FRAME_STATE_UNKNOWN = 0, 49 FRAME_STATE_LOADING, 50 FRAME_STATE_LOADED, 51 FRAME_STATE_ERROR 52 }; 53 54 explicit GaiaScreenHandler( 55 const scoped_refptr<NetworkStateInformer>& network_state_informer); 56 virtual ~GaiaScreenHandler(); 57 58 void LoadGaia(const GaiaContext& context); 59 void UpdateGaia(const GaiaContext& context); 60 void ReloadGaia(); 61 frame_state()62 FrameState frame_state() const { return frame_state_; } frame_error()63 net::Error frame_error() const { return frame_error_; } 64 65 private: 66 // TODO (ygorshenin@): remove this dependency. 67 friend class SigninScreenHandler; 68 69 // BaseScreenHandler implementation: 70 virtual void DeclareLocalizedValues(LocalizedValuesBuilder* builder) OVERRIDE; 71 virtual void Initialize() OVERRIDE; 72 73 // WebUIMessageHandler implementation: 74 virtual void RegisterMessages() OVERRIDE; 75 76 // WebUI message handlers. 77 void HandleFrameLoadingCompleted(int status); 78 79 // TODO (ygorshenin@): GaiaScreenHandler should implement 80 // NetworkStateInformer::Observer. 81 void UpdateState(ErrorScreenActor::ErrorReason reason); 82 83 // TODO (ygorshenin@): remove this dependency. 84 void SetSigninScreenHandler(SigninScreenHandler* handler); 85 86 // Current state of Gaia frame. 87 FrameState frame_state_; 88 89 // Latest Gaia frame error. 90 net::Error frame_error_; 91 92 // Network state informer used to keep signin screen up. 93 scoped_refptr<NetworkStateInformer> network_state_informer_; 94 95 // Non-owning ptr to SigninScreenHandler instance. Should not be used 96 // in dtor. 97 // TODO (ygorshenin@): GaiaScreenHandler shouldn't communicate with 98 // signin_screen_handler directly. 99 SigninScreenHandler* signin_screen_handler_; 100 101 DISALLOW_COPY_AND_ASSIGN(GaiaScreenHandler); 102 }; 103 104 } // namespace chromeos 105 106 #endif // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_GAIA_SCREEN_HANDLER_H_ 107