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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_AMBIENT_UI_AMBIENT_BACKGROUND_IMAGE_VIEW_H_
#define ASH_AMBIENT_UI_AMBIENT_BACKGROUND_IMAGE_VIEW_H_
#include <string>
#include "ash/ambient/ui/ambient_slideshow_peripheral_ui.h"
#include "ash/ambient/ui/ambient_view_delegate.h"
#include "ash/ash_export.h"
#include "ash/public/cpp/ambient/ambient_backend_controller.h"
#include "base/memory/raw_ptr.h"
#include "base/scoped_multi_source_observation.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/views/controls/image_view.h"
#include "ui/views/layout/flex_layout.h"
#include "ui/views/view.h"
#include "ui/views/view_observer.h"
namespace ash {
// AmbientBackgroundImageView--------------------------------------------------
// A custom ImageView to display photo image and details information on ambient.
// It also handles specific mouse/gesture events to dismiss ambient when user
// interacts with the background photos.
class ASH_EXPORT AmbientBackgroundImageView : public views::View,
public views::ViewObserver {
METADATA_HEADER(AmbientBackgroundImageView, views::View)
public:
explicit AmbientBackgroundImageView(AmbientViewDelegate* delegate);
AmbientBackgroundImageView(const AmbientBackgroundImageView&) = delete;
AmbientBackgroundImageView& operator=(const AmbientBackgroundImageView&) =
delete;
~AmbientBackgroundImageView() override;
// views::View:
void OnBoundsChanged(const gfx::Rect& previous_bounds) override;
// views::ViewObserver:
void OnViewBoundsChanged(views::View* observed_view) override;
// Updates the display images.
void UpdateImage(const gfx::ImageSkia& image,
const gfx::ImageSkia& related_image,
bool is_portrait,
::ambient::TopicType type);
// Updates the details for the currently displayed image(s).
void UpdateImageDetails(const std::u16string& details,
const std::u16string& related_details);
// Shows/Hides the peripheral ui.
void SetPeripheralUiVisibility(bool visible);
void SetForceResizeToFit(bool force_resize_to_fit);
gfx::ImageSkia GetCurrentImage();
gfx::Rect GetImageBoundsInScreenForTesting() const;
gfx::Rect GetRelatedImageBoundsInScreenForTesting() const;
void ResetRelatedImageForTesting();
private:
void InitLayout();
void UpdateLayout();
bool UpdateRelatedImageViewVisibility();
void SetResizedImage(views::ImageView* image_view,
const gfx::ImageSkia& image_unscaled);
// When show paired images:
// 1. The device is in landscape mode and the images are portrait.
// 2. The device is in portrait mode and the images are landscape.
bool MustShowPairs() const;
bool HasPairedImages() const;
// Owned by |AmbientController| and should always outlive |this|.
raw_ptr<AmbientViewDelegate> delegate_ = nullptr;
// View to display current image(s) on ambient. Owned by the view hierarchy.
raw_ptr<views::View> image_container_ = nullptr;
raw_ptr<views::FlexLayout> image_layout_ = nullptr;
raw_ptr<views::ImageView> image_view_ = nullptr;
raw_ptr<views::ImageView> related_image_view_ = nullptr;
// The unscaled images used for scaling and displaying in different bounds.
gfx::ImageSkia image_unscaled_;
gfx::ImageSkia related_image_unscaled_;
std::u16string details_;
std::u16string related_details_;
bool is_portrait_ = false;
// Flag that changes the resize behavior such that full image is always shown
// without any cropping. False by default.
bool force_resize_to_fit_ = false;
::ambient::TopicType topic_type_ = ::ambient::TopicType::kOther;
raw_ptr<AmbientSlideshowPeripheralUi> ambient_peripheral_ui_ = nullptr;
base::ScopedMultiSourceObservation<views::View, views::ViewObserver>
observed_views_{this};
};
} // namespace ash
#endif // ASH_AMBIENT_UI_AMBIENT_BACKGROUND_IMAGE_VIEW_H_
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