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"
24 // ScreenlockBridge brings together the screenLockPrivate API and underlying
25 // support. On ChromeOS, it delegates calls to the ScreenLocker. On other
26 // platforms, it delegates calls to UserManagerUI (and friends).
27 class ScreenlockBridge {
31 // Invoked after the screen is locked.
32 virtual void OnScreenDidLock() = 0;
33 // Invoked after the screen lock is dismissed.
34 virtual void OnScreenDidUnlock() = 0;
36 virtual ~Observer() {}
39 // Class containing parameters describing the custom icon that should be
40 // shown on a user's screen lock pod next to the input field.
41 class UserPodCustomIconOptions {
43 UserPodCustomIconOptions();
44 ~UserPodCustomIconOptions();
46 // Converts parameters to a dictionary values that can be sent to the
48 scoped_ptr<base::DictionaryValue> ToDictionaryValue() const;
50 // Sets the icon as chrome://theme resource URL.
51 void SetIconAsResourceURL(const std::string& url);
53 // Sets the icon as a gfx::Image. The image will be converted to set of data
54 // URLs for each icon representation. Use |SetIconAsResourceURL| instead of
56 // TODO(tbarzic): Remove this one once easy unlock app stops using
57 // screenlockPrivate.showCustomIcon.
58 void SetIconAsImage(const gfx::Image& image);
60 // Sets the icon size. Has to be called if |SetIconAsResourceURL| was used
61 // to set the icon. For animated icon, this should be set to a single frame
62 // size, not the animation resource size.
63 void SetSize(size_t icon_width, size_t icon_height);
65 // If the icon is supposed to be animated, sets the animation parameters.
66 // If set, it expects that the resource set using |SetIcon*| methods
67 // contains horizontally arranged ordered list of animation frames.
68 // Note that the icon size set in |SetSize| should be a single frame size.
69 // |resource_width|: Total animation resource width.
70 // |frame_length_ms|: Time for which a single animation frame is shown.
71 void SetAnimation(size_t resource_width, size_t frame_length_ms);
73 // Sets the icon opacity. The values should be in <0, 100] interval, which
74 // will get scaled into <0, 1] interval. The default value is 100.
75 void SetOpacity(size_t opacity);
77 // Sets the icon tooltip. If |autoshow| is set the tooltip is automatically
78 // shown with the icon.
79 void SetTooltip(const base::string16& tooltip, bool autoshow);
82 std::string icon_resource_url_;
83 scoped_ptr<gfx::Image> icon_image_;
89 size_t animation_resource_width_;
90 size_t animation_frame_length_ms_;
92 // The opacity should be in <0, 100] range.
95 base::string16 tooltip_;
96 bool autoshow_tooltip_;
98 DISALLOW_COPY_AND_ASSIGN(UserPodCustomIconOptions);
103 // Supported authentication types. Keep in sync with the enum in
106 OFFLINE_PASSWORD = 0,
110 EXPAND_THEN_USER_CLICK = 4,
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;
139 virtual ~LockHandler() {}
142 static ScreenlockBridge* Get();
143 static std::string GetAuthenticatedUserEmail(Profile* profile);
145 void SetLockHandler(LockHandler* lock_handler);
147 bool IsLocked() const;
148 void Lock(Profile* profile);
149 void Unlock(Profile* profile);
151 void AddObserver(Observer* observer);
152 void RemoveObserver(Observer* observer);
154 LockHandler* lock_handler() { return lock_handler_; }
157 friend struct base::DefaultLazyInstanceTraits<ScreenlockBridge>;
158 friend struct base::DefaultDeleter<ScreenlockBridge>;
163 LockHandler* lock_handler_; // Not owned
164 ObserverList<Observer, true> observers_;
166 DISALLOW_COPY_AND_ASSIGN(ScreenlockBridge);
169 #endif // CHROME_BROWSER_SIGNIN_SCREENLOCK_BRIDGE_H_