mirror of https://github.com/ppy/osu
176 lines
5.1 KiB
C#
176 lines
5.1 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using osu.Framework.Allocation;
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using osu.Framework.Bindables;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Sprites;
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using osu.Framework.Input.Events;
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using osu.Game.Audio;
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using osu.Game.Graphics;
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using osu.Game.Graphics.UserInterface;
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using osu.Game.Online.API.Requests.Responses;
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using osuTK;
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using osuTK.Graphics;
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namespace osu.Game.Overlays.BeatmapSet.Buttons
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{
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public class PlayButton : Container
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{
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public IBindable<bool> Playing => playing;
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private readonly BindableBool playing = new BindableBool();
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public PreviewTrack Preview { get; private set; }
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private APIBeatmapSet beatmapSet;
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public APIBeatmapSet BeatmapSet
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{
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get => beatmapSet;
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set
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{
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if (value == beatmapSet) return;
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beatmapSet = value;
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Preview?.Stop();
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Preview?.Expire();
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Preview = null;
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playing.Value = false;
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}
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}
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private Color4 hoverColour;
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private readonly SpriteIcon icon;
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private readonly LoadingSpinner loadingSpinner;
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private const float transition_duration = 500;
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private bool loading
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{
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set
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{
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if (value)
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{
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icon.FadeTo(0.5f, transition_duration, Easing.OutQuint);
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loadingSpinner.Show();
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}
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else
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{
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icon.FadeTo(1, transition_duration, Easing.OutQuint);
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loadingSpinner.Hide();
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}
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}
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}
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public PlayButton(APIBeatmapSet setInfo = null)
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{
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BeatmapSet = setInfo;
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AddRange(new Drawable[]
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{
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icon = new SpriteIcon
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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FillMode = FillMode.Fit,
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RelativeSizeAxes = Axes.Both,
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Icon = FontAwesome.Solid.Play,
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},
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loadingSpinner = new LoadingSpinner
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{
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Size = new Vector2(15),
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},
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});
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playing.ValueChanged += playingStateChanged;
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}
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[Resolved]
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private PreviewTrackManager previewTrackManager { get; set; }
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[BackgroundDependencyLoader]
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private void load(OsuColour colour)
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{
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hoverColour = colour.Yellow;
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}
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protected override bool OnClick(ClickEvent e)
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{
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playing.Toggle();
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return true;
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}
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protected override bool OnHover(HoverEvent e)
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{
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icon.FadeColour(hoverColour, 120, Easing.InOutQuint);
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return base.OnHover(e);
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}
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protected override void OnHoverLost(HoverLostEvent e)
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{
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if (!playing.Value)
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icon.FadeColour(Color4.White, 120, Easing.InOutQuint);
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base.OnHoverLost(e);
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}
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private void playingStateChanged(ValueChangedEvent<bool> e)
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{
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icon.Icon = e.NewValue ? FontAwesome.Solid.Stop : FontAwesome.Solid.Play;
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icon.FadeColour(e.NewValue || IsHovered ? hoverColour : Color4.White, 120, Easing.InOutQuint);
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if (e.NewValue)
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{
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if (BeatmapSet == null)
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{
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playing.Value = false;
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return;
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}
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if (Preview != null)
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{
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attemptStart();
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return;
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}
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loading = true;
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LoadComponentAsync(Preview = previewTrackManager.Get(beatmapSet), preview =>
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{
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// Make sure that we schedule to after the next audio frame to fix crashes in single-threaded execution.
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// See: https://github.com/ppy/osu-framework/issues/4692
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Schedule(() =>
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{
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// beatmapset may have changed.
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if (Preview != preview)
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return;
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AddInternal(preview);
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loading = false;
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// make sure that the update of value of Playing (and the ensuing value change callbacks)
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// are marshaled back to the update thread.
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preview.Stopped += () => Schedule(() => playing.Value = false);
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// user may have changed their mind.
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if (playing.Value)
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attemptStart();
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});
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});
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}
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else
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{
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Preview?.Stop();
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loading = false;
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}
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}
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private void attemptStart()
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{
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if (Preview?.Start() != true)
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playing.Value = false;
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}
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}
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}
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