screen_lock_view.h revision 4a5e2dc747d50c653511c68ccb2cfbfb740bd5a7 
1// Copyright (c) 2010 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_LOGIN_SCREEN_LOCK_VIEW_H_
6#define CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_LOCK_VIEW_H_
7#pragma once
8
9#include "chrome/browser/chromeos/login/user_view.h"
10#include "chrome/common/notification_observer.h"
11#include "chrome/common/notification_registrar.h"
12#include "views/controls/textfield/textfield.h"
13#include "views/view.h"
14
15namespace views {
16class ImageView;
17}  // namespace views
18
19namespace chromeos {
20
21class ScreenLocker;
22class UserView;
23
24namespace test {
25class ScreenLockerTester;
26}  // namespace test
27
28// ScreenLockView creates view components necessary to authenticate
29// a user to unlock the screen.
30class ScreenLockView : public views::View,
31                       public views::Textfield::Controller,
32                       public NotificationObserver,
33                       public UserView::Delegate {
34 public:
35  explicit ScreenLockView(ScreenLocker* screen_locker);
36  virtual ~ScreenLockView() {}
37
38  void Init();
39
40  // Clears and sets the focus to the password field.
41  void ClearAndSetFocusToPassword();
42
43  // Enable/Disable signout button.
44  void SetSignoutEnabled(bool enabled);
45
46  // Returns the bounds of the password field in ScreenLocker's coordinate.
47  gfx::Rect GetPasswordBoundsRelativeTo(const views::View* view);
48
49  // views::View implementation:
50  virtual void SetEnabled(bool enabled);
51  virtual void Layout();
52  virtual gfx::Size GetPreferredSize();
53
54  // NotificationObserver implementation:
55  virtual void Observe(NotificationType type,
56                       const NotificationSource& source,
57                       const NotificationDetails& details);
58
59  // views::Textfield::Controller implementation:
60  virtual void ContentsChanged(views::Textfield* sender,
61                               const string16& new_contents) {}
62  virtual bool HandleKeystroke(views::Textfield* sender,
63                               const views::Textfield::Keystroke& keystroke);
64
65  // UserView::Delegate implementation:
66  virtual void OnSignout();
67
68 protected:
69  // views::View implementation:
70  virtual void ViewHierarchyChanged(bool is_add,
71                                    views::View* parent,
72                                    views::View* child);
73
74 private:
75  friend class test::ScreenLockerTester;
76
77  UserView* user_view_;
78
79  // For editing the password.
80  views::Textfield* password_field_;
81
82  // ScreenLocker is owned by itself.
83  ScreenLocker* screen_locker_;
84
85  NotificationRegistrar registrar_;
86
87  // User's picture, signout button and password field.
88  views::View* main_;
89
90  // Username that overlays on top of user's picture.
91  views::View* username_;
92
93  DISALLOW_COPY_AND_ASSIGN(ScreenLockView);
94};
95
96}  // namespace chromeos
97
98#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_LOCK_VIEW_H_
99