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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_UI_WEBUI_OPTIONS_CHROMEOS_CHANGE_PICTURE_OPTIONS_HANDLER_H_
#define CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_CHANGE_PICTURE_OPTIONS_HANDLER_H_
#include "chrome/browser/chromeos/camera_presence_notifier.h"
#include "chrome/browser/image_decoder.h"
#include "chrome/browser/ui/webui/options/options_ui.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/shell_dialogs/select_file_dialog.h"
namespace base {
class DictionaryValue;
class ListValue;
}
namespace user_manager {
class User;
}
namespace chromeos {
namespace options {
// ChromeOS user image options page UI handler.
class ChangePictureOptionsHandler : public ::options::OptionsPageUIHandler,
public ui::SelectFileDialog::Listener,
public content::NotificationObserver,
public ImageDecoder::Delegate,
public CameraPresenceNotifier::Observer {
public:
ChangePictureOptionsHandler();
virtual ~ChangePictureOptionsHandler();
// OptionsPageUIHandler implementation.
virtual void GetLocalizedValues(
base::DictionaryValue* localized_strings) override;
// WebUIMessageHandler implementation.
virtual void RegisterMessages() override;
// CameraPresenceNotifier::Observer implementation:
virtual void OnCameraPresenceCheckDone(bool is_camera_present) override;
private:
// Sends list of available default images to the page.
void SendDefaultImages();
// Sends current selection to the page.
void SendSelectedImage();
// Sends the profile image to the page. If |should_select| is true then
// the profile image element is selected.
void SendProfileImage(const gfx::ImageSkia& image, bool should_select);
// Starts profile image update and shows the last downloaded profile image,
// if any, on the page. Shouldn't be called before |SendProfileImage|.
void UpdateProfileImage();
// Sends previous user image to the page.
void SendOldImage(const std::string& image_url);
// Starts camera presence check.
void CheckCameraPresence();
// Updates UI with camera presence state.
void SetCameraPresent(bool present);
// Opens a file selection dialog to choose user image from file.
void HandleChooseFile(const base::ListValue* args);
// Handles 'take-photo' button click.
void HandleTakePhoto(const base::ListValue* args);
// Handles photo taken with WebRTC UI.
void HandlePhotoTaken(const base::ListValue* args);
// Handles 'discard-photo' button click.
void HandleDiscardPhoto(const base::ListValue* args);
// Gets the list of available user images and sends it to the page.
void HandleGetAvailableImages(const base::ListValue* args);
// Handles page initialized event.
void HandlePageInitialized(const base::ListValue* args);
// Handles page shown event.
void HandlePageShown(const base::ListValue* args);
// Handles page hidden event.
void HandlePageHidden(const base::ListValue* args);
// Selects one of the available images as user's.
void HandleSelectImage(const base::ListValue* args);
// SelectFileDialog::Delegate implementation.
virtual void FileSelected(
const base::FilePath& path,
int index, void* params) override;
// content::NotificationObserver implementation.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
// Sets user image to photo taken from camera.
void SetImageFromCamera(const gfx::ImageSkia& photo);
// Returns handle to browser window or NULL if it can't be found.
gfx::NativeWindow GetBrowserWindow() const;
// Overriden from ImageDecoder::Delegate:
virtual void OnImageDecoded(const ImageDecoder* decoder,
const SkBitmap& decoded_image) override;
virtual void OnDecodeImageFailed(const ImageDecoder* decoder) override;
// Returns user related to current WebUI. If this user doesn't exist,
// returns active user.
user_manager::User* GetUser() const;
scoped_refptr<ui::SelectFileDialog> select_file_dialog_;
// Previous user image from camera/file and its data URL.
gfx::ImageSkia previous_image_;
std::string previous_image_url_;
// Index of the previous user image.
int previous_image_index_;
// Last user photo, if taken.
gfx::ImageSkia user_photo_;
// Data URL for |user_photo_|.
std::string user_photo_data_url_;
content::NotificationRegistrar registrar_;
// Last ImageDecoder instance used to decode an image blob received by
// HandlePhotoTaken.
scoped_refptr<ImageDecoder> image_decoder_;
DISALLOW_COPY_AND_ASSIGN(ChangePictureOptionsHandler);
};
} // namespace options
} // namespace chromeos
#endif // CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_CHANGE_PICTURE_OPTIONS_HANDLER_H_
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