user_image_view.h revision 72a454cd3513ac24fbdd0e0cb9ad70b86a99b801 
1// Copyright (c) 2011 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_USER_IMAGE_VIEW_H_
6#define CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_VIEW_H_
7#pragma once
8
9#include "views/controls/button/button.h"
10#include "views/view.h"
11
12class SkBitmap;
13
14namespace views {
15class ImageButton;
16class Label;
17class NativeButton;
18}  // namespace views
19
20namespace chromeos {
21
22class CameraImageView;
23
24// View used for selecting user image.
25class UserImageView : public views::View,
26                      public views::ButtonListener {
27 public:
28  // Delegate class to get notifications from the view.
29  class Delegate {
30  public:
31    virtual ~Delegate() {}
32
33    // Called if user accepts the selected image. The image is passed as a
34    // parameter.
35    virtual void OnOK(const SkBitmap& image) = 0;
36
37    // Called if user decides to skip image selection screen.
38    virtual void OnSkip() = 0;
39  };
40
41  explicit UserImageView(Delegate* delegate);
42  virtual ~UserImageView();
43
44  // Initializes this view, its children and layout.
45  void Init();
46
47  // Updates image from camera.
48  void UpdateVideoFrame(const SkBitmap& frame);
49
50  // If in capturing mode, shows that camera is initializing by running
51  // throbber above the picture. Disables snapshot button until frame is
52  // received.
53  void ShowCameraInitializing();
54
55  // If in capturing mode, shows that camera is broken instead of video
56  // frame and disables snapshot button until new frame is received.
57  void ShowCameraError();
58
59  // Overridden from views::View:
60  virtual gfx::Size GetPreferredSize();
61
62  // Overridden from views::ButtonListener.
63  virtual void ButtonPressed(views::Button* sender, const views::Event& event);
64
65 private:
66  // Initializes layout manager for this view.
67  void InitLayout();
68
69  views::Label* title_label_;
70  views::NativeButton* ok_button_;
71  views::NativeButton* skip_button_;
72  views::ImageButton* snapshot_button_;
73  CameraImageView* user_image_;
74
75  // Notifications receiver.
76  Delegate* delegate_;
77
78  // Indicates that we're in capturing mode. When |false|, new video frames
79  // are not shown to user if received.
80  bool is_capturing_;
81
82  DISALLOW_COPY_AND_ASSIGN(UserImageView);
83};
84
85}  // namespace chromeos
86
87#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_VIEW_H_
88