mirror of https://github.com/ppy/osu
52 lines
2.5 KiB
C#
52 lines
2.5 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 System;
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using osu.Game.Online.API;
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using osu.Framework.Bindables;
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namespace osu.Game.Database
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{
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/// <summary>
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/// Represents a <see cref="IModelManager{TModel}"/> that can download new models from an external source.
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/// </summary>
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/// <typeparam name="TModel">The model type.</typeparam>
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public interface IModelDownloader<TModel> : IModelManager<TModel>
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where TModel : class
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{
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/// <summary>
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/// Fired when a <typeparamref name="TModel"/> download begins.
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/// This is NOT run on the update thread and should be scheduled.
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/// </summary>
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IBindable<WeakReference<ArchiveDownloadRequest<TModel>>> DownloadBegan { get; }
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/// <summary>
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/// Fired when a <typeparamref name="TModel"/> download is interrupted, either due to user cancellation or failure.
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/// This is NOT run on the update thread and should be scheduled.
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/// </summary>
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IBindable<WeakReference<ArchiveDownloadRequest<TModel>>> DownloadFailed { get; }
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/// <summary>
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/// Checks whether a given <typeparamref name="TModel"/> is already available in the local store.
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/// </summary>
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/// <param name="model">The <typeparamref name="TModel"/> whose existence needs to be checked.</param>
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/// <returns>Whether the <typeparamref name="TModel"/> exists.</returns>
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bool IsAvailableLocally(TModel model);
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/// <summary>
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/// Begin a download for the requested <typeparamref name="TModel"/>.
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/// </summary>
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/// <param name="model">The <stypeparamref name="TModel"/> to be downloaded.</param>
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/// <param name="minimiseDownloadSize">Whether this download should be optimised for slow connections. Generally means extras are not included in the download bundle..</param>
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/// <returns>Whether the download was started.</returns>
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bool Download(TModel model, bool minimiseDownloadSize);
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/// <summary>
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/// Gets an existing <typeparamref name="TModel"/> download request if it exists.
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/// </summary>
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/// <param name="model">The <typeparamref name="TModel"/> whose request is wanted.</param>
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/// <returns>The <see cref="ArchiveDownloadRequest{TModel}"/> object if it exists, otherwise null.</returns>
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ArchiveDownloadRequest<TModel> GetExistingDownload(TModel model);
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}
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}
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