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osu-lazer/osu.Game/Overlays/News/Displays/ArticleListing.cs

92 lines
2.9 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.Linq;
using System.Threading;
using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Graphics.UserInterface;
using osu.Game.Online.API.Requests.Responses;
using osuTK;
namespace osu.Game.Overlays.News.Displays
{
/// <summary>
/// Lists articles in a vertical flow for a specified year.
/// </summary>
public class ArticleListing : CompositeDrawable
{
private readonly Action fetchMorePosts;
private FillFlowContainer content;
private ShowMoreButton showMore;
private CancellationTokenSource cancellationToken;
public ArticleListing(Action fetchMorePosts)
{
this.fetchMorePosts = fetchMorePosts;
}
[BackgroundDependencyLoader]
private void load()
{
RelativeSizeAxes = Axes.X;
AutoSizeAxes = Axes.Y;
Padding = new MarginPadding
{
Vertical = 20,
Left = 30,
Right = 50
};
InternalChild = new FillFlowContainer
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Direction = FillDirection.Vertical,
Spacing = new Vector2(0, 10),
Children = new Drawable[]
{
content = new FillFlowContainer
{
Anchor = Anchor.TopCentre,
Origin = Anchor.TopCentre,
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Direction = FillDirection.Vertical,
Spacing = new Vector2(0, 10)
},
showMore = new ShowMoreButton
{
Anchor = Anchor.TopCentre,
Origin = Anchor.TopCentre,
Margin = new MarginPadding { Top = 15 },
Action = fetchMorePosts,
Alpha = 0
}
}
};
}
public void AddPosts(IEnumerable<APINewsPost> posts, bool morePostsAvailable) => Schedule(() =>
LoadComponentsAsync(posts.Select(p => new NewsCard(p)).ToList(), loaded =>
{
content.AddRange(loaded);
showMore.IsLoading = false;
showMore.Alpha = morePostsAvailable ? 1 : 0;
}, (cancellationToken = new CancellationTokenSource()).Token)
);
protected override void Dispose(bool isDisposing)
{
cancellationToken?.Cancel();
base.Dispose(isDisposing);
}
}
}