1 // Copyright 2014 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.
5 #ifndef CHROME_BROWSER_SIGNIN_SCREENLOCK_BRIDGE_H_
6 #define CHROME_BROWSER_SIGNIN_SCREENLOCK_BRIDGE_H_
10 #include "base/basictypes.h"
11 #include "base/lazy_instance.h"
12 #include "base/macros.h"
13 #include "base/memory/scoped_ptr.h"
14 #include "base/observer_list.h"
15 #include "base/strings/string16.h"
16 #include "base/values.h"
21 // ScreenlockBridge brings together the screenLockPrivate API and underlying
22 // support. On ChromeOS, it delegates calls to the ScreenLocker. On other
23 // platforms, it delegates calls to UserManagerUI (and friends).
24 // TODO(tbarzic): Rename ScreenlockBridge to SignInScreenBridge, as this is not
25 // used solely for the lock screen anymore.
26 class ScreenlockBridge {
30 // Invoked after the screen is locked.
31 virtual void OnScreenDidLock() = 0;
32 // Invoked after the screen lock is dismissed.
33 virtual void OnScreenDidUnlock() = 0;
34 // Invoked when the user focused on the lock screen changes.
35 virtual void OnFocusedUserChanged(const std::string& user_id) = 0;
37 virtual ~Observer() {}
40 // Class containing parameters describing the custom icon that should be
41 // shown on a user's screen lock pod next to the input field.
42 class UserPodCustomIconOptions {
44 UserPodCustomIconOptions();
45 ~UserPodCustomIconOptions();
47 // Converts parameters to a dictionary values that can be sent to the
49 scoped_ptr<base::DictionaryValue> ToDictionaryValue() const;
51 // Sets the icon as chrome://theme resource URL.
52 void SetIconAsResourceURL(const std::string& url);
54 // Sets the icon size. If not called, the icon will not be visible.
55 // For animated icon, this should be set to a single frame size, not the
56 // animation resource size.
57 void SetSize(size_t icon_width, size_t icon_height);
59 // If the icon is supposed to be animated, sets the animation parameters.
60 // If set, it expects that the resource set using |SetIconAsResourceURL|
61 // method contains horizontally arranged ordered list of animation frames.
62 // Note that the icon size set in |SetSize| should be a single frame size.
63 // |resource_width|: Total animation resource width.
64 // |frame_length_ms|: Time for which a single animation frame is shown.
65 void SetAnimation(size_t resource_width, size_t frame_length_ms);
67 // Sets the icon opacity. The values should be in <0, 100] interval, which
68 // will get scaled into <0, 1] interval. The default value is 100.
69 void SetOpacity(size_t opacity);
71 // Sets the icon tooltip. If |autoshow| is set the tooltip is automatically
72 // shown with the icon.
73 void SetTooltip(const base::string16& tooltip, bool autoshow);
75 // If hardlock on click is set, clicking the icon in the screenlock will
76 // go to state where password is required for unlock.
77 void SetHardlockOnClick();
80 std::string icon_resource_url_;
86 size_t animation_resource_width_;
87 size_t animation_frame_length_ms_;
89 // The opacity should be in <0, 100] range.
92 base::string16 tooltip_;
93 bool autoshow_tooltip_;
95 bool hardlock_on_click_;
97 DISALLOW_COPY_AND_ASSIGN(UserPodCustomIconOptions);
102 // Supported authentication types. Keep in sync with the enum in
105 OFFLINE_PASSWORD = 0,
109 EXPAND_THEN_USER_CLICK = 4,
110 FORCE_OFFLINE_PASSWORD = 5
113 // Displays |message| in a banner on the lock screen.
114 virtual void ShowBannerMessage(const base::string16& message) = 0;
116 // Shows a custom icon in the user pod on the lock screen.
117 virtual void ShowUserPodCustomIcon(
118 const std::string& user_email,
119 const UserPodCustomIconOptions& icon) = 0;
121 // Hides the custom icon in user pod for a user.
122 virtual void HideUserPodCustomIcon(const std::string& user_email) = 0;
124 // (Re)enable lock screen UI.
125 virtual void EnableInput() = 0;
127 // Set the authentication type to be used on the lock screen.
128 virtual void SetAuthType(const std::string& user_email,
130 const base::string16& auth_value) = 0;
132 // Returns the authentication type used for a user.
133 virtual AuthType GetAuthType(const std::string& user_email) const = 0;
135 // Unlock from easy unlock app for a user.
136 virtual void Unlock(const std::string& user_email) = 0;
138 // Attempts to login the user using an easy unlock key.
139 virtual void AttemptEasySignin(const std::string& user_email,
140 const std::string& secret,
141 const std::string& key_label) = 0;
144 virtual ~LockHandler() {}
147 static ScreenlockBridge* Get();
148 static std::string GetAuthenticatedUserEmail(Profile* profile);
150 void SetLockHandler(LockHandler* lock_handler);
151 void SetFocusedUser(const std::string& user_id);
153 bool IsLocked() const;
154 void Lock(Profile* profile);
155 void Unlock(Profile* profile);
157 void AddObserver(Observer* observer);
158 void RemoveObserver(Observer* observer);
160 LockHandler* lock_handler() { return lock_handler_; }
162 std::string focused_user_id() const { return focused_user_id_; }
165 friend struct base::DefaultLazyInstanceTraits<ScreenlockBridge>;
166 friend struct base::DefaultDeleter<ScreenlockBridge>;
171 LockHandler* lock_handler_; // Not owned
172 // The last focused user's id.
173 std::string focused_user_id_;
174 ObserverList<Observer, true> observers_;
176 DISALLOW_COPY_AND_ASSIGN(ScreenlockBridge);
179 #endif // CHROME_BROWSER_SIGNIN_SCREENLOCK_BRIDGE_H_