osu/osu.Game/Overlays/Music/PlaylistOverlay.cs

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// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
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#nullable disable
using System;
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using System.Linq;
using osu.Framework.Allocation;
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using osu.Framework.Bindables;
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using osu.Framework.Extensions.Color4Extensions;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Effects;
using osu.Framework.Graphics.Shapes;
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using osu.Game.Beatmaps;
using osu.Game.Database;
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using osu.Game.Graphics;
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using osuTK;
using osuTK.Graphics;
using Realms;
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namespace osu.Game.Overlays.Music
{
public class PlaylistOverlay : VisibilityContainer
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{
private const float transition_duration = 600;
private const float playlist_height = 510;
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public IBindableList<Live<BeatmapSetInfo>> BeatmapSets => beatmapSets;
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private readonly BindableList<Live<BeatmapSetInfo>> beatmapSets = new BindableList<Live<BeatmapSetInfo>>();
private readonly Bindable<WorkingBeatmap> beatmap = new Bindable<WorkingBeatmap>();
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[Resolved]
private BeatmapManager beatmaps { get; set; }
[Resolved]
private RealmAccess realm { get; set; }
private IDisposable beatmapSubscription;
private FilterControl filter;
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private Playlist list;
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[BackgroundDependencyLoader]
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private void load(OsuColour colours, Bindable<WorkingBeatmap> beatmap)
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{
this.beatmap.BindTo(beatmap);
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Children = new Drawable[]
{
new Container
{
RelativeSizeAxes = Axes.Both,
CornerRadius = 5,
Masking = true,
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EdgeEffect = new EdgeEffectParameters
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{
Type = EdgeEffectType.Shadow,
Colour = Color4.Black.Opacity(40),
Radius = 5,
},
Children = new Drawable[]
{
new Box
{
Colour = colours.Gray3,
RelativeSizeAxes = Axes.Both,
},
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list = new Playlist
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{
RelativeSizeAxes = Axes.Both,
Padding = new MarginPadding { Top = 95, Bottom = 10, Right = 10 },
RequestSelection = itemSelected
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},
filter = new FilterControl
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
FilterChanged = criteria => list.Filter(criteria),
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Padding = new MarginPadding(10),
},
},
},
};
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filter.Search.OnCommit += (_, _) =>
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{
list.FirstVisibleSet?.PerformRead(set =>
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{
BeatmapInfo toSelect = set.Beatmaps.FirstOrDefault();
if (toSelect != null)
{
beatmap.Value = beatmaps.GetWorkingBeatmap(toSelect);
beatmap.Value.Track.Restart();
}
});
};
}
protected override void LoadComplete()
{
base.LoadComplete();
// tests might bind externally, in which case we don't want to involve realm.
if (beatmapSets.Count == 0)
beatmapSubscription = realm.RegisterForNotifications(r => r.All<BeatmapSetInfo>().Where(s => !s.DeletePending), beatmapsChanged);
list.Items.BindTo(beatmapSets);
beatmap.BindValueChanged(working => list.SelectedSet.Value = working.NewValue.BeatmapSetInfo.ToLive(realm), true);
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}
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private void beatmapsChanged(IRealmCollection<BeatmapSetInfo> sender, ChangeSet changes, Exception error)
{
if (changes == null)
{
beatmapSets.Clear();
// must use AddRange to avoid RearrangeableList sort overhead per add op.
beatmapSets.AddRange(sender.Select(b => b.ToLive(realm)));
return;
}
foreach (int i in changes.InsertedIndices)
beatmapSets.Insert(i, sender[i].ToLive(realm));
foreach (int i in changes.DeletedIndices.OrderByDescending(i => i))
beatmapSets.RemoveAt(i);
}
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protected override void PopIn()
{
filter.Search.HoldFocus = true;
Schedule(() => filter.Search.TakeFocus());
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this.ResizeTo(new Vector2(1, playlist_height), transition_duration, Easing.OutQuint);
this.FadeIn(transition_duration, Easing.OutQuint);
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}
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protected override void PopOut()
{
filter.Search.HoldFocus = false;
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this.ResizeTo(new Vector2(1, 0), transition_duration, Easing.OutQuint);
this.FadeOut(transition_duration);
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}
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private void itemSelected(Live<BeatmapSetInfo> beatmapSet)
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{
beatmapSet.PerformRead(set =>
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{
if (set.Equals((beatmap.Value?.BeatmapSetInfo)))
{
beatmap.Value?.Track.Seek(0);
return;
}
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beatmap.Value = beatmaps.GetWorkingBeatmap(set.Beatmaps.First());
beatmap.Value.Track.Restart();
});
}
protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
beatmapSubscription?.Dispose();
}
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}
}