mirror of
https://github.com/ppy/osu
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80 lines
2.2 KiB
C#
80 lines
2.2 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.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Game.Online.API;
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namespace osu.Game.Overlays
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{
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/// <summary>
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/// A subview containing online content, to be displayed inside a <see cref="FullscreenOverlay{T}"/>.
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/// </summary>
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/// <remarks>
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/// Automatically performs a data fetch on load.
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/// </remarks>
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/// <typeparam name="T">The type of the API response.</typeparam>
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public abstract class OverlayView<T> : CompositeDrawable, IOnlineComponent
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where T : class
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{
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[Resolved]
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protected IAPIProvider API { get; private set; }
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private APIRequest<T> request;
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protected OverlayView()
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{
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RelativeSizeAxes = Axes.X;
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AutoSizeAxes = Axes.Y;
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}
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protected override void LoadComplete()
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{
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base.LoadComplete();
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API.Register(this);
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}
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/// <summary>
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/// Create the API request for fetching data.
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/// </summary>
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protected abstract APIRequest<T> CreateRequest();
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/// <summary>
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/// Fired when results arrive from the main API request.
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/// </summary>
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/// <param name="response"></param>
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protected abstract void OnSuccess(T response);
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/// <summary>
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/// Force a re-request for data from the API.
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/// </summary>
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protected void PerformFetch()
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{
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request?.Cancel();
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request = CreateRequest();
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request.Success += response => Schedule(() => OnSuccess(response));
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API.Queue(request);
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}
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public virtual void APIStateChanged(IAPIProvider api, APIState state)
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{
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switch (state)
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{
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case APIState.Online:
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PerformFetch();
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break;
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}
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}
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protected override void Dispose(bool isDisposing)
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{
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request?.Cancel();
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API?.Unregister(this);
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base.Dispose(isDisposing);
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}
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}
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}
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