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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:
     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