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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_VIEWS_CONTROLS_THEME_TRACKING_IMAGE_VIEW_H_
#define UI_VIEWS_CONTROLS_THEME_TRACKING_IMAGE_VIEW_H_
#include "base/functional/callback.h"
#include "ui/base/models/image_model.h"
#include "ui/color/color_variant.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/views/controls/image_view.h"
namespace views {
// An ImageView that displays either `light_image` or `dark_image` based on the
// current background color returned by `get_background_color_callback`. Tracks
// theme changes so the image is always the correct version. `light_image` and
// `dark_image` must be of the same size. The `light_image` is set by default
// upon construction.
class VIEWS_EXPORT ThemeTrackingImageView : public ImageView {
METADATA_HEADER(ThemeTrackingImageView, ImageView)
public:
ThemeTrackingImageView(const ui::ImageModel& light_image_model,
const ui::ImageModel& dark_image_model,
const base::RepeatingCallback<ui::ColorVariant()>&
get_background_color_callback);
// TODO(crbug.com/40239900): Remove this constructor and migrate existing
// callers to `ImageModel`.
ThemeTrackingImageView(const gfx::ImageSkia& light_image,
const gfx::ImageSkia& dark_image,
const base::RepeatingCallback<ui::ColorVariant()>&
get_background_color_callback);
ThemeTrackingImageView(const ThemeTrackingImageView&) = delete;
ThemeTrackingImageView& operator=(const ThemeTrackingImageView&) = delete;
~ThemeTrackingImageView() override;
void SetLightImage(const ui::ImageModel& light_image_model);
void SetDarkImage(const ui::ImageModel& dark_image_model);
// ImageView:
void OnThemeChanged() override;
private:
// The underlying light and dark mode image models.
ui::ImageModel light_image_model_;
ui::ImageModel dark_image_model_;
base::RepeatingCallback<ui::ColorVariant()> get_background_color_callback_;
};
} // namespace views
#endif // UI_VIEWS_CONTROLS_THEME_TRACKING_IMAGE_VIEW_H_
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