mirror of
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169 lines
5.7 KiB
C#
169 lines
5.7 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.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using osu.Framework.Allocation;
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using osu.Framework.Bindables;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Localisation;
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using osu.Game.Graphics;
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using osu.Game.Graphics.Sprites;
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using osu.Game.Graphics.UserInterface;
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using osu.Game.Online.API;
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using osu.Game.Graphics.Containers;
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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 osuTK;
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namespace osu.Game.Overlays.Profile.Sections
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{
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public abstract partial class PaginatedProfileSubsection<TModel> : ProfileSubsection
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{
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/// <summary>
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/// The number of items displayed per page.
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/// </summary>
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protected virtual int ItemsPerPage => 50;
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/// <summary>
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/// The number of items displayed initially.
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/// </summary>
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protected virtual int InitialItemsCount => 5;
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[Resolved]
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private IAPIProvider api { get; set; } = null!;
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protected PaginationParameters? CurrentPage { get; private set; }
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protected ReverseChildIDFillFlowContainer<Drawable> ItemsContainer { get; private set; } = null!;
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private APIRequest<List<TModel>>? retrievalRequest;
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private CancellationTokenSource? loadCancellation;
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private ShowMoreButton moreButton = null!;
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private OsuSpriteText missing = null!;
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private readonly LocalisableString? missingText;
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protected PaginatedProfileSubsection(Bindable<UserProfileData?> user, LocalisableString? headerText = null, LocalisableString? missingText = null)
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: base(user, headerText, CounterVisibilityState.AlwaysVisible)
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{
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this.missingText = missingText;
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}
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protected override Drawable CreateContent() => new FillFlowContainer
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{
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RelativeSizeAxes = Axes.X,
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AutoSizeAxes = Axes.Y,
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Direction = FillDirection.Vertical,
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Children = new Drawable[]
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{
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// reverse ID flow is required for correct Z-ordering of the items (last item should be front-most).
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// particularly important in PaginatedBeatmapContainer, as it uses beatmap cards, which have expandable overhanging content.
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ItemsContainer = new ReverseChildIDFillFlowContainer<Drawable>
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{
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AutoSizeAxes = Axes.Y,
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RelativeSizeAxes = Axes.X,
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Spacing = new Vector2(0, 2),
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// ensure the container and its contents are in front of the "more" button.
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Depth = float.MinValue
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},
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moreButton = new ShowMoreButton
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{
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Anchor = Anchor.TopCentre,
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Origin = Anchor.TopCentre,
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Alpha = 0,
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Margin = new MarginPadding { Top = 10 },
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Action = showMore,
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},
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missing = new OsuSpriteText
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{
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Font = OsuFont.GetFont(size: 15),
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Text = missingText ?? string.Empty,
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Alpha = 0,
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}
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}
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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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User.BindValueChanged(onUserChanged, true);
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}
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private void onUserChanged(ValueChangedEvent<UserProfileData?> e)
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{
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loadCancellation?.Cancel();
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retrievalRequest?.Cancel();
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CurrentPage = null;
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ItemsContainer.Clear();
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if (e.NewValue?.User != null)
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{
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showMore();
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SetCount(GetCount(e.NewValue.User));
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}
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}
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private void showMore()
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{
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if (User.Value == null)
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return;
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loadCancellation = new CancellationTokenSource();
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CurrentPage = CurrentPage?.TakeNext(ItemsPerPage) ?? new PaginationParameters(InitialItemsCount);
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retrievalRequest = CreateRequest(User.Value, CurrentPage.Value);
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retrievalRequest.Success += items => UpdateItems(items, loadCancellation);
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api.Queue(retrievalRequest);
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}
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protected virtual void UpdateItems(List<TModel> items, CancellationTokenSource cancellationTokenSource) => Schedule(() =>
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{
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OnItemsReceived(items);
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if (!items.Any() && CurrentPage?.Offset == 0)
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{
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moreButton.Hide();
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moreButton.IsLoading = false;
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if (missingText.HasValue)
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missing.Show();
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return;
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}
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LoadComponentsAsync(items.Select(CreateDrawableItem).Where(d => d != null).Cast<Drawable>(), drawables =>
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{
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missing.Hide();
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moreButton.FadeTo(items.Count == CurrentPage?.Limit ? 1 : 0);
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moreButton.IsLoading = false;
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ItemsContainer.AddRange(drawables);
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}, cancellationTokenSource.Token);
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});
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protected virtual int GetCount(APIUser user) => 0;
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protected virtual void OnItemsReceived(List<TModel> items)
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{
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}
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protected abstract APIRequest<List<TModel>> CreateRequest(UserProfileData user, PaginationParameters pagination);
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protected abstract Drawable? CreateDrawableItem(TModel model);
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protected override void Dispose(bool isDisposing)
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{
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retrievalRequest?.Cancel();
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loadCancellation?.Cancel();
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base.Dispose(isDisposing);
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}
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}
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}
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