mirror of
https://github.com/ppy/osu.git
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186 lines
5.8 KiB
C#
186 lines
5.8 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 System.Collections.Generic;
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using System.Threading;
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using System.Threading.Tasks;
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using JetBrains.Annotations;
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using osu.Framework.Allocation;
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using osu.Framework.Audio;
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using osu.Framework.Bindables;
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using osu.Framework.Graphics;
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using osu.Game.Input.Bindings;
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using osu.Game.Online.API.Requests;
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using osu.Game.Online.API.Requests.Responses;
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using osu.Game.Overlays.Changelog;
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using osuTK.Graphics;
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namespace osu.Game.Overlays
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{
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public class ChangelogOverlay : OnlineOverlay<ChangelogHeader>
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{
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public override bool IsPresent => base.IsPresent || Scheduler.HasPendingTasks;
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public readonly Bindable<APIChangelogBuild> Current = new Bindable<APIChangelogBuild>();
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private List<APIChangelogBuild> builds;
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protected List<APIUpdateStream> Streams;
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public ChangelogOverlay()
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: base(OverlayColourScheme.Purple, false)
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{
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}
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[BackgroundDependencyLoader]
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private void load(AudioManager audio)
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{
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Header.Build.BindTarget = Current;
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Current.BindValueChanged(e =>
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{
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if (e.NewValue != null)
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loadContent(new ChangelogSingleBuild(e.NewValue));
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else
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loadContent(new ChangelogListing(builds));
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});
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}
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protected override ChangelogHeader CreateHeader() => new ChangelogHeader
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{
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ListingSelected = ShowListing,
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};
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protected override Color4 BackgroundColour => ColourProvider.Background4;
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public void ShowListing()
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{
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Current.Value = null;
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Show();
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}
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/// <summary>
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/// Fetches and shows a specific build from a specific update stream.
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/// </summary>
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/// <param name="build">Must contain at least <see cref="APIUpdateStream.Name"/> and
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/// <see cref="APIChangelogBuild.Version"/>. If <see cref="APIUpdateStream.DisplayName"/> and
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/// <see cref="APIChangelogBuild.DisplayVersion"/> are specified, the header will instantly display them.</param>
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public void ShowBuild([NotNull] APIChangelogBuild build)
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{
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if (build == null) throw new ArgumentNullException(nameof(build));
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Current.Value = build;
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Show();
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}
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public void ShowBuild([NotNull] string updateStream, [NotNull] string version)
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{
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if (updateStream == null) throw new ArgumentNullException(nameof(updateStream));
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if (version == null) throw new ArgumentNullException(nameof(version));
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performAfterFetch(() =>
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{
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var build = builds.Find(b => b.Version == version && b.UpdateStream.Name == updateStream)
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?? Streams.Find(s => s.Name == updateStream)?.LatestBuild;
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if (build != null)
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ShowBuild(build);
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});
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Show();
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}
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public override bool OnPressed(GlobalAction action)
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{
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switch (action)
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{
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case GlobalAction.Back:
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if (Current.Value == null)
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{
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Hide();
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}
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else
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{
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Current.Value = null;
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}
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return true;
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}
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return false;
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}
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protected override void PopIn()
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{
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base.PopIn();
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if (initialFetchTask == null)
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// fetch and refresh to show listing, if no other request was made via Show methods
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performAfterFetch(() => Current.TriggerChange());
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}
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private Task initialFetchTask;
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private void performAfterFetch(Action action) => Schedule(() =>
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{
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fetchListing()?.ContinueWith(_ =>
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Schedule(action), TaskContinuationOptions.OnlyOnRanToCompletion);
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});
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private Task fetchListing()
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{
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if (initialFetchTask != null)
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return initialFetchTask;
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return initialFetchTask = Task.Run(async () =>
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{
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var tcs = new TaskCompletionSource<bool>();
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var req = new GetChangelogRequest();
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req.Success += res => Schedule(() =>
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{
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// remap streams to builds to ensure model equality
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res.Builds.ForEach(b => b.UpdateStream = res.Streams.Find(s => s.Id == b.UpdateStream.Id));
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res.Streams.ForEach(s => s.LatestBuild.UpdateStream = res.Streams.Find(s2 => s2.Id == s.LatestBuild.UpdateStream.Id));
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builds = res.Builds;
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Streams = res.Streams;
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Header.Populate(res.Streams);
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tcs.SetResult(true);
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});
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req.Failure += e =>
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{
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initialFetchTask = null;
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tcs.SetException(e);
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};
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await API.PerformAsync(req).ConfigureAwait(false);
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return tcs.Task;
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}).Unwrap();
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}
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private CancellationTokenSource loadContentCancellation;
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private void loadContent(ChangelogContent newContent)
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{
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Content.FadeTo(0.2f, 300, Easing.OutQuint);
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loadContentCancellation?.Cancel();
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LoadComponentAsync(newContent, c =>
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{
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Content.FadeIn(300, Easing.OutQuint);
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c.BuildSelected = ShowBuild;
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Child = c;
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}, (loadContentCancellation = new CancellationTokenSource()).Token);
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}
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}
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}
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