osu/osu.Game/Overlays/ChangelogOverlay.cs

189 lines
5.8 KiB
C#

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