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osu-lazer/osu.Game/Overlays/Profile/Sections/PaginatedContainer.cs
2019-12-17 12:50:50 +03:00

161 lines
5.1 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 osuTK;
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Graphics;
using osu.Game.Graphics.Sprites;
using osu.Game.Online.API;
using osu.Game.Rulesets;
using osu.Game.Users;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
namespace osu.Game.Overlays.Profile.Sections
{
public abstract class PaginatedContainer<TModel> : FillFlowContainer
{
private readonly ProfileShowMoreButton moreButton;
private readonly OsuSpriteText missingText;
private APIRequest<List<TModel>> retrievalRequest;
private CancellationTokenSource loadCancellation;
private readonly BindableInt count = new BindableInt();
[Resolved]
private IAPIProvider api { get; set; }
protected int VisiblePages;
protected int ItemsPerPage;
protected readonly Bindable<User> User = new Bindable<User>();
protected readonly FillFlowContainer ItemsContainer;
protected RulesetStore Rulesets;
protected PaginatedContainer(Bindable<User> user, string header, string missing)
{
User.BindTo(user);
RelativeSizeAxes = Axes.X;
AutoSizeAxes = Axes.Y;
Direction = FillDirection.Vertical;
Children = new Drawable[]
{
new FillFlowContainer
{
AutoSizeAxes = Axes.Both,
Direction = FillDirection.Horizontal,
Spacing = new Vector2(5, 0),
Margin = new MarginPadding { Top = 10, Bottom = 10 },
Children = new Drawable[]
{
new OsuSpriteText
{
Anchor = Anchor.CentreLeft,
Origin = Anchor.CentreLeft,
Text = header,
Font = OsuFont.GetFont(size: 20, weight: FontWeight.Bold),
},
new CounterPill
{
Anchor = Anchor.CentreLeft,
Origin = Anchor.CentreLeft,
Current = { BindTarget = count }
}
}
},
ItemsContainer = new FillFlowContainer
{
AutoSizeAxes = Axes.Y,
RelativeSizeAxes = Axes.X,
Spacing = new Vector2(0, 2),
},
moreButton = new ProfileShowMoreButton
{
Anchor = Anchor.TopCentre,
Origin = Anchor.TopCentre,
Alpha = 0,
Margin = new MarginPadding { Top = 10 },
Action = showMore,
},
missingText = new OsuSpriteText
{
Font = OsuFont.GetFont(size: 15),
Text = missing,
Alpha = 0,
},
};
}
[BackgroundDependencyLoader]
private void load(RulesetStore rulesets)
{
Rulesets = rulesets;
User.ValueChanged += onUserChanged;
User.TriggerChange();
}
private void onUserChanged(ValueChangedEvent<User> e)
{
loadCancellation?.Cancel();
retrievalRequest?.Cancel();
VisiblePages = 0;
ItemsContainer.Clear();
if (e.NewValue != null)
{
showMore();
count.Value = GetCount(e.NewValue);
}
}
private void showMore()
{
loadCancellation = new CancellationTokenSource();
retrievalRequest = CreateRequest();
retrievalRequest.Success += UpdateItems;
api.Queue(retrievalRequest);
}
protected virtual void UpdateItems(List<TModel> items) => Schedule(() =>
{
if (!items.Any() && VisiblePages == 1)
{
moreButton.Hide();
moreButton.IsLoading = false;
missingText.Show();
return;
}
LoadComponentsAsync(items.Select(CreateDrawableItem).Where(d => d != null), drawables =>
{
missingText.Hide();
moreButton.FadeTo(items.Count == ItemsPerPage ? 1 : 0);
moreButton.IsLoading = false;
ItemsContainer.AddRange(drawables);
}, loadCancellation.Token);
});
protected virtual int GetCount(User user) => 0;
protected abstract APIRequest<List<TModel>> CreateRequest();
protected abstract Drawable CreateDrawableItem(TModel model);
protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
retrievalRequest?.Cancel();
}
}
}