| // Copyright 2017 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 ASH_LOGIN_UI_LOGIN_DATA_DISPATCHER_H_ |
| #define ASH_LOGIN_UI_LOGIN_DATA_DISPATCHER_H_ |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "ash/ash_export.h" |
| #include "ash/detachable_base/detachable_base_pairing_status.h" |
| #include "ash/public/interfaces/login_user_info.mojom.h" |
| #include "ash/public/interfaces/tray_action.mojom.h" |
| #include "base/macros.h" |
| #include "base/observer_list.h" |
| |
| namespace ash { |
| |
| // Provides access to data needed by the lock/login screen. The login UI will |
| // register observers which are then invoked when data is posted to the data |
| // dispatcher. |
| // |
| // This provides access to data notification events only. LoginDataDispatcher is |
| // not responsible for owning data (the login embedder should own the data). |
| // This type provides a clean interface between the actual view/UI implemenation |
| // and the embedder. |
| // |
| // There are various types which provide data to LoginDataDispatcher. For |
| // example, the lock screen uses the session manager, whereas the login screen |
| // uses the user manager. The debug overlay proxies the original data dispatcher |
| // so it can provide fake state from an arbitrary source. |
| class ASH_EXPORT LoginDataDispatcher { |
| public: |
| // Types interested in login state should derive from |Observer| and register |
| // themselves on the |LoginDataDispatcher| instance passed to the view |
| // hierarchy. |
| class Observer { |
| public: |
| virtual ~Observer(); |
| |
| // Called when the displayed set of users has changed. |
| virtual void OnUsersChanged( |
| const std::vector<mojom::LoginUserInfoPtr>& users); |
| |
| // Called when pin should be enabled or disabled for |user|. By default, pin |
| // should be disabled. |
| virtual void OnPinEnabledForUserChanged(const AccountId& user, |
| bool enabled); |
| |
| // Called when the given user can click their pod to unlock. |
| virtual void OnClickToUnlockEnabledForUserChanged(const AccountId& user, |
| bool enabled); |
| |
| // Called when the lock screen note state changes. |
| virtual void OnLockScreenNoteStateChanged(mojom::TrayActionState state); |
| |
| // Called when an easy unlock icon should be displayed. |
| virtual void OnShowEasyUnlockIcon( |
| const AccountId& user, |
| const mojom::EasyUnlockIconOptionsPtr& icon); |
| |
| // Called when the info shown for dev and canary channels are changed. |
| virtual void OnDevChannelInfoChanged( |
| const std::string& os_version_label_text, |
| const std::string& enterprise_info_text, |
| const std::string& bluetooth_name); |
| |
| // Called when public session display name is changed for user with |
| // |account_id|. |
| virtual void OnPublicSessionDisplayNameChanged( |
| const AccountId& account_id, |
| const std::string& display_name); |
| |
| // Called when public session locales are changed for user with |
| // |account_id|. |
| virtual void OnPublicSessionLocalesChanged( |
| const AccountId& account_id, |
| const base::ListValue& locales, |
| const std::string& default_locale, |
| bool show_advanced_view); |
| |
| // Called when the pairing status of detachable base changes - e.g. when the |
| // base is attached or detached. |
| virtual void OnDetachableBasePairingStatusChanged( |
| DetachableBasePairingStatus pairing_status); |
| }; |
| |
| LoginDataDispatcher(); |
| ~LoginDataDispatcher(); |
| |
| void AddObserver(Observer* observer); |
| void RemoveObserver(Observer* observer); |
| |
| void NotifyUsers(const std::vector<mojom::LoginUserInfoPtr>& users); |
| void SetPinEnabledForUser(const AccountId& user, bool enabled); |
| void SetClickToUnlockEnabledForUser(const AccountId& user, bool enabled); |
| void SetLockScreenNoteState(mojom::TrayActionState state); |
| void ShowEasyUnlockIcon(const AccountId& user, |
| const mojom::EasyUnlockIconOptionsPtr& icon); |
| void SetDevChannelInfo(const std::string& os_version_label_text, |
| const std::string& enterprise_info_text, |
| const std::string& bluetooth_name); |
| void SetPublicSessionDisplayName(const AccountId& account_id, |
| const std::string& display_name); |
| void SetPublicSessionLocales(const AccountId& account_id, |
| std::unique_ptr<base::ListValue> locales, |
| const std::string& default_locale, |
| bool show_advanced_view); |
| void SetDetachableBasePairingStatus( |
| DetachableBasePairingStatus pairing_status); |
| |
| private: |
| base::ObserverList<Observer> observers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(LoginDataDispatcher); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_LOGIN_UI_LOGIN_DATA_DISPATCHER_H_ |