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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_MEDIA_STRING_VIEW_H_
#define ASH_AMBIENT_UI_MEDIA_STRING_VIEW_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "base/scoped_observation.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/media_session/public/mojom/media_controller.mojom.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/compositor/layer_animation_observer.h"
#include "ui/views/view.h"
#include "ui/views/view_observer.h"
namespace views {
class ImageView;
class Label;
} // namespace views
namespace ash {
// Container for displaying ongoing media information, including the name of the
// media and the artist, formatted with a proceding music note symbol and a
// middle dot separator.
class MediaStringView : public views::View,
public views::ViewObserver,
public media_session::mojom::MediaControllerObserver,
public ui::ImplicitAnimationObserver {
METADATA_HEADER(MediaStringView, views::View)
public:
struct Settings {
SkColor icon_light_mode_color;
SkColor icon_dark_mode_color;
SkColor text_light_mode_color;
SkColor text_dark_mode_color;
int text_shadow_elevation;
};
class Delegate {
public:
virtual ~Delegate() = default;
// Returns the settings for |MediaStringView|.
virtual Settings GetSettings() = 0;
};
explicit MediaStringView(MediaStringView::Delegate* delegate);
MediaStringView(const MediaStringView&) = delete;
MediaStringView& operator=(const MediaStringView&) = delete;
~MediaStringView() override;
// views::View:
void OnThemeChanged() override;
// views::ViewObserver:
void OnViewBoundsChanged(views::View* observed_view) override;
// media_session::mojom::MediaControllerObserver:
void MediaSessionInfoChanged(
media_session::mojom::MediaSessionInfoPtr session_info) override;
void MediaSessionMetadataChanged(
const std::optional<media_session::MediaMetadata>& metadata) override;
void MediaSessionActionsChanged(
const std::vector<media_session::mojom::MediaSessionAction>& actions)
override {}
void MediaSessionChanged(
const std::optional<base::UnguessableToken>& request_id) override {}
void MediaSessionPositionChanged(
const std::optional<media_session::MediaPosition>& position) override {}
// ui::ImplicitAnimationObserver:
void OnImplicitAnimationsCompleted() override;
private:
friend class AmbientAshTestBase;
void InitLayout();
void BindMediaControllerObserver();
void UpdateMaskLayer();
bool NeedToAnimate() const;
// Get the transform of |media_text_| for scrolling animation.
gfx::Transform GetMediaTextTransform(bool is_initial);
void ScheduleScrolling(bool is_initial);
void StartScrolling(bool is_initial);
views::View* media_text_container_for_testing() {
return media_text_container_;
}
views::Label* media_text_label_for_testing() { return media_text_; }
// Unowned. Must out live |MediaStringView|.
raw_ptr<MediaStringView::Delegate> delegate_ = nullptr;
// Music eighth note.
raw_ptr<views::ImageView> icon_ = nullptr;
// Container of media info text.
raw_ptr<views::View> media_text_container_ = nullptr;
// With an extra copy of media info text for scrolling animation.
raw_ptr<views::Label> media_text_ = nullptr;
// Used to receive updates to the active media controller.
mojo::Remote<media_session::mojom::MediaController> media_controller_remote_;
mojo::Receiver<media_session::mojom::MediaControllerObserver>
observer_receiver_{this};
base::ScopedObservation<views::View, views::ViewObserver> observed_view_{
this};
base::WeakPtrFactory<MediaStringView> weak_factory_{this};
};
} // namespace ash
#endif // ASH_AMBIENT_UI_MEDIA_STRING_VIEW_H_
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