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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_CHROMEOS_LOGIN_TAKE_PHOTO_VIEW_H_
#define CHROME_BROWSER_CHROMEOS_LOGIN_TAKE_PHOTO_VIEW_H_
#pragma once
#include "base/compiler_specific.h"
#include "ui/views/controls/button/button.h"
#include "ui/views/view.h"
class PhotoCaptureObserver;
class SkBitmap;
namespace gfx {
class ImageSkia;
}
namespace views {
class ImageButton;
class Label;
}
namespace chromeos {
class CameraImageView;
// View used for showing video from camera and taking a snapshot from it.
class TakePhotoView : public views::View,
public views::ButtonListener {
public:
class Delegate {
public:
virtual ~Delegate() {}
// Called when the view has switched to capturing state.
virtual void OnCapturingStarted() = 0;
// Called when the view has switched from capturing state.
virtual void OnCapturingStopped() = 0;
};
explicit TakePhotoView(Delegate* delegate);
virtual ~TakePhotoView();
// Initializes this view, its children and layout.
void Init(int image_width, int image_height);
// Updates image from camera.
void UpdateVideoFrame(const SkBitmap& frame);
// If in capturing mode, shows that camera is initializing by running
// throbber above the picture. Disables snapshot button until frame is
// received.
void ShowCameraInitializing();
// If in capturing mode, shows that camera is broken instead of video
// frame and disables snapshot button until new frame is received.
void ShowCameraError();
// Returns the currently selected image.
const gfx::ImageSkia& GetImage() const;
// Sets the image indicating that the view is used only for image preview.
void SetImage(gfx::ImageSkia* image);
// Captures the image, as if the button was pressed.
void CaptureImage();
// Overridden from views::View:
virtual gfx::Size GetPreferredSize() OVERRIDE;
// Overridden from views::ButtonListener.
virtual void ButtonPressed(views::Button* sender,
const views::Event& event) OVERRIDE;
bool is_capturing() const { return is_capturing_; }
void set_show_title(bool show) { show_title_ = show; }
private:
// Initializes layout manager for this view.
void InitLayout();
// For automation purposes.
friend class ::PhotoCaptureObserver;
void FlipCapturingState();
views::Label* title_label_;
views::ImageButton* snapshot_button_;
CameraImageView* user_image_;
// Indicates that we're in capturing mode. When |false|, new video frames
// are not shown to user if received.
bool is_capturing_;
// Whether title label is present or not.
bool show_title_;
Delegate* delegate_;
DISALLOW_COPY_AND_ASSIGN(TakePhotoView);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_LOGIN_TAKE_PHOTO_VIEW_H_
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