osu/osu.Game/Skinning/SkinManager.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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using System;
using System.Collections.Generic;
using System.IO;
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using System.Linq;
using System.Linq.Expressions;
using System.Threading;
using System.Threading.Tasks;
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using Microsoft.EntityFrameworkCore;
using osu.Framework.Audio;
using osu.Framework.Audio.Sample;
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using osu.Framework.Bindables;
using osu.Framework.Extensions;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.OpenGL.Textures;
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using osu.Framework.Graphics.Textures;
using osu.Framework.IO.Stores;
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using osu.Framework.Platform;
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using osu.Game.Audio;
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using osu.Game.Database;
using osu.Game.IO.Archives;
namespace osu.Game.Skinning
{
public class SkinManager : ArchiveModelManager<SkinInfo, SkinFileInfo>, ISkinSource
{
private readonly AudioManager audio;
private readonly IResourceStore<byte[]> legacyDefaultResources;
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public readonly Bindable<Skin> CurrentSkin = new Bindable<Skin>(new DefaultSkin());
public readonly Bindable<SkinInfo> CurrentSkinInfo = new Bindable<SkinInfo>(SkinInfo.Default) { Default = SkinInfo.Default };
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public override IEnumerable<string> HandledExtensions => new[] { ".osk" };
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protected override string[] HashableFileTypes => new[] { ".ini" };
protected override string ImportFromStablePath => "Skins";
public SkinManager(Storage storage, DatabaseContextFactory contextFactory, IIpcHost importHost, AudioManager audio, IResourceStore<byte[]> legacyDefaultResources)
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: base(storage, contextFactory, new SkinStore(contextFactory, storage), importHost)
{
this.audio = audio;
this.legacyDefaultResources = legacyDefaultResources;
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ItemRemoved.BindValueChanged(weakRemovedInfo =>
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{
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if (weakRemovedInfo.NewValue.TryGetTarget(out var removedInfo))
{
// check the removed skin is not the current user choice. if it is, switch back to default.
if (removedInfo.ID == CurrentSkinInfo.Value.ID)
CurrentSkinInfo.Value = SkinInfo.Default;
}
});
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CurrentSkinInfo.ValueChanged += skin => CurrentSkin.Value = GetSkin(skin.NewValue);
CurrentSkin.ValueChanged += skin =>
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{
if (skin.NewValue.SkinInfo != CurrentSkinInfo.Value)
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throw new InvalidOperationException($"Setting {nameof(CurrentSkin)}'s value directly is not supported. Use {nameof(CurrentSkinInfo)} instead.");
SourceChanged?.Invoke();
};
}
protected override bool ShouldDeleteArchive(string path) => Path.GetExtension(path)?.ToLowerInvariant() == ".osk";
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/// <summary>
/// Returns a list of all usable <see cref="SkinInfo"/>s. Includes the special default skin plus all skins from <see cref="GetAllUserSkins"/>.
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/// </summary>
/// <returns>A list of available <see cref="SkinInfo"/>.</returns>
public List<SkinInfo> GetAllUsableSkins()
{
var userSkins = GetAllUserSkins();
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userSkins.Insert(0, SkinInfo.Default);
userSkins.Insert(1, DefaultLegacySkin.Info);
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return userSkins;
}
/// <summary>
/// Returns a list of all usable <see cref="SkinInfo"/>s that have been loaded by the user.
/// </summary>
/// <returns>A list of available <see cref="SkinInfo"/>.</returns>
public List<SkinInfo> GetAllUserSkins() => ModelStore.ConsumableItems.Where(s => !s.DeletePending).ToList();
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protected override SkinInfo CreateModel(ArchiveReader archive) => new SkinInfo { Name = archive.Name };
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private const string unknown_creator_string = "Unknown";
protected override string ComputeHash(SkinInfo item, ArchiveReader reader = null)
{
// we need to populate early to create a hash based off skin.ini contents
if (item.Name?.Contains(".osk") == true)
populateMetadata(item);
if (item.Creator != null && item.Creator != unknown_creator_string)
{
// this is the optimal way to hash legacy skins, but will need to be reconsidered when we move forward with skin implementation.
// likely, the skin should expose a real version (ie. the version of the skin, not the skin.ini version it's targeting).
return item.ToString().ComputeSHA2Hash();
}
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// if there was no creator, the ToString above would give the filename, which alone isn't really enough to base any decisions on.
return base.ComputeHash(item, reader);
}
protected override async Task Populate(SkinInfo model, ArchiveReader archive, CancellationToken cancellationToken = default)
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{
await base.Populate(model, archive, cancellationToken);
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if (model.Name?.Contains(".osk") == true)
populateMetadata(model);
}
private void populateMetadata(SkinInfo item)
{
Skin reference = GetSkin(item);
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if (!string.IsNullOrEmpty(reference.Configuration.SkinInfo.Name))
{
item.Name = reference.Configuration.SkinInfo.Name;
item.Creator = reference.Configuration.SkinInfo.Creator;
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}
else
{
item.Name = item.Name.Replace(".osk", "");
item.Creator ??= unknown_creator_string;
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}
}
/// <summary>
/// Retrieve a <see cref="Skin"/> instance for the provided <see cref="SkinInfo"/>
/// </summary>
/// <param name="skinInfo">The skin to lookup.</param>
/// <returns>A <see cref="Skin"/> instance correlating to the provided <see cref="SkinInfo"/>.</returns>
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public Skin GetSkin(SkinInfo skinInfo)
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{
if (skinInfo == SkinInfo.Default)
return new DefaultSkin();
if (skinInfo == DefaultLegacySkin.Info)
return new DefaultLegacySkin(legacyDefaultResources, audio);
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return new LegacySkin(skinInfo, Files.Store, audio);
}
/// <summary>
/// Perform a lookup query on available <see cref="SkinInfo"/>s.
/// </summary>
/// <param name="query">The query.</param>
/// <returns>The first result for the provided query, or null if no results were found.</returns>
public SkinInfo Query(Expression<Func<SkinInfo, bool>> query) => ModelStore.ConsumableItems.AsNoTracking().FirstOrDefault(query);
public event Action SourceChanged;
public Drawable GetDrawableComponent(ISkinComponent component) => CurrentSkin.Value.GetDrawableComponent(component);
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public Texture GetTexture(string componentName, WrapMode wrapModeS, WrapMode wrapModeT) => CurrentSkin.Value.GetTexture(componentName, wrapModeS, wrapModeT);
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public SampleChannel GetSample(ISampleInfo sampleInfo) => CurrentSkin.Value.GetSample(sampleInfo);
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public IBindable<TValue> GetConfig<TLookup, TValue>(TLookup lookup) => CurrentSkin.Value.GetConfig<TLookup, TValue>(lookup);
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}
}