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_TAKE_PHOTO_VIEW_H_
6#define CHROME_BROWSER_CHROMEOS_LOGIN_TAKE_PHOTO_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;
17}  // namespace views
18
19namespace chromeos {
20
21class CameraImageView;
22
23// View used for showing video from camera and taking a snapshot from it.
24class TakePhotoView : public views::View,
25                      public views::ButtonListener {
26 public:
27  class Delegate {
28   public:
29    virtual ~Delegate() {}
30
31    // Called when the view has switched to capturing state.
32    virtual void OnCapturingStarted() = 0;
33
34    // Called when the view has switched from capturing state.
35    virtual void OnCapturingStopped() = 0;
36  };
37
38  explicit TakePhotoView(Delegate* delegate);
39  virtual ~TakePhotoView();
40
41  // Initializes this view, its children and layout.
42  void Init();
43
44  // Updates image from camera.
45  void UpdateVideoFrame(const SkBitmap& frame);
46
47  // If in capturing mode, shows that camera is initializing by running
48  // throbber above the picture. Disables snapshot button until frame is
49  // received.
50  void ShowCameraInitializing();
51
52  // If in capturing mode, shows that camera is broken instead of video
53  // frame and disables snapshot button until new frame is received.
54  void ShowCameraError();
55
56  // Returns the currently selected image.
57  const SkBitmap& GetImage() const;
58
59  // Sets the image indicating that the view is used only for image preview.
60  void SetImage(SkBitmap* image);
61
62  // Overridden from views::View:
63  virtual gfx::Size GetPreferredSize();
64
65  // Overridden from views::ButtonListener.
66  virtual void ButtonPressed(views::Button* sender, const views::Event& event);
67
68  bool is_capturing() const { return is_capturing_; }
69
70  void set_show_title(bool show) { show_title_ = show; }
71
72 private:
73  // Initializes layout manager for this view.
74  void InitLayout();
75
76  views::Label* title_label_;
77  views::ImageButton* snapshot_button_;
78  CameraImageView* user_image_;
79
80  // Indicates that we're in capturing mode. When |false|, new video frames
81  // are not shown to user if received.
82  bool is_capturing_;
83
84  // Whether title label is present or not.
85  bool show_title_;
86
87  Delegate* delegate_;
88
89  DISALLOW_COPY_AND_ASSIGN(TakePhotoView);
90};
91
92}  // namespace chromeos
93
94#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_TAKE_PHOTO_VIEW_H_
95