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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 "chrome/browser/chromeos/login/default_images_view.h"
10 #include "chrome/browser/chromeos/login/take_photo_view.h"
11 #include "views/controls/button/button.h"
12 #include "views/view.h"
13 
14 class SkBitmap;
15 
16 namespace views {
17 class Label;
18 class NativeButton;
19 }  // namespace views
20 
21 namespace chromeos {
22 
23 // View used for selecting user image on OOBE screen.
24 class UserImageView : public views::View,
25                       public views::ButtonListener,
26                       public TakePhotoView::Delegate,
27                       public DefaultImagesView::Delegate {
28  public:
29   // Delegate class to get notifications from the view.
30   class Delegate {
31   public:
~Delegate()32     virtual ~Delegate() {}
33 
34     // Initializes camera if needed and starts capturing.
35     virtual void StartCamera() = 0;
36 
37     // Stops capturing from camera.
38     virtual void StopCamera() = 0;
39 
40     // Called if user accepts the taken photo. The image is passed as a
41     // parameter.
42     virtual void OnPhotoTaken(const SkBitmap& image) = 0;
43 
44     // Called if user accepts the chosen default image. The image index is
45     // passed as a parameter.
46     virtual void OnDefaultImageSelected(int index) = 0;
47   };
48 
49   explicit UserImageView(Delegate* delegate);
50   virtual ~UserImageView();
51 
52   // Initializes this view, its children and layout.
53   void Init();
54 
55   // Updates image from camera.
56   void UpdateVideoFrame(const SkBitmap& frame);
57 
58   // If in capturing mode, shows that camera is initializing by running
59   // throbber above the picture. Disables snapshot button until frame is
60   // received.
61   void ShowCameraInitializing();
62 
63   // If in capturing mode, shows that camera is broken instead of video
64   // frame and disables snapshot button until new frame is received.
65   void ShowCameraError();
66 
67   // Returns true if video capture is the current state of the view.
68   bool IsCapturing() const;
69 
70   // Overridden from views::View:
71   virtual gfx::Size GetPreferredSize();
72 
73   // Overridden from views::ButtonListener.
74   virtual void ButtonPressed(views::Button* sender, const views::Event& event);
75 
76   // Overridden from TakePhotoView::Delegate.
77   virtual void OnCapturingStarted();
78   virtual void OnCapturingStopped();
79 
80   // Overridden from DefaultImagesView::Delegate.
81   virtual void OnCaptureButtonClicked();
82   virtual void OnImageSelected(int image_index);
83 
84  private:
85   // Initializes layout manager for this view.
86   void InitLayout();
87 
88   views::Label* title_label_;
89   DefaultImagesView* default_images_view_;
90   TakePhotoView* take_photo_view_;
91   views::View* splitter_;
92   views::NativeButton* ok_button_;
93 
94   // Notifications receiver.
95   Delegate* delegate_;
96 
97   DISALLOW_COPY_AND_ASSIGN(UserImageView);
98 };
99 
100 }  // namespace chromeos
101 
102 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_VIEW_H_
103