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osu-lazer/osu.Game/Overlays/Comments/CommentsContainer.cs

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// 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 osu.Framework.Allocation;
using osu.Framework.Graphics.Containers;
using osu.Game.Online.API;
using osu.Game.Online.API.Requests;
using osu.Framework.Graphics;
using osu.Framework.Bindables;
using osu.Framework.Graphics.Shapes;
using osu.Game.Online.API.Requests.Responses;
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using System.Threading;
using System.Linq;
using osu.Framework.Extensions.IEnumerableExtensions;
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namespace osu.Game.Overlays.Comments
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{
public class CommentsContainer : CompositeDrawable
{
private CommentableType type;
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private long? id;
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public readonly Bindable<CommentsSortCriteria> Sort = new Bindable<CommentsSortCriteria>();
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public readonly BindableBool ShowDeleted = new BindableBool();
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[Resolved]
private IAPIProvider api { get; set; }
private GetCommentsRequest request;
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private CancellationTokenSource loadCancellation;
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private int currentPage;
private FillFlowContainer content;
private DeletedCommentsCounter deletedCommentsCounter;
private CommentsShowMoreButton moreButton;
private TotalCommentsCounter commentCounter;
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[BackgroundDependencyLoader]
private void load(OverlayColourProvider colourProvider)
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{
RelativeSizeAxes = Axes.X;
AutoSizeAxes = Axes.Y;
AddRangeInternal(new Drawable[]
{
new Box
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{
RelativeSizeAxes = Axes.Both,
Colour = colourProvider.Background5
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},
new FillFlowContainer
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Direction = FillDirection.Vertical,
Children = new Drawable[]
{
commentCounter = new TotalCommentsCounter(),
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new CommentsHeader
{
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Sort = { BindTarget = Sort },
ShowDeleted = { BindTarget = ShowDeleted }
},
content = new FillFlowContainer
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Direction = FillDirection.Vertical,
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},
new Container
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Children = new Drawable[]
{
new Box
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{
RelativeSizeAxes = Axes.Both,
Colour = colourProvider.Background4
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},
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new FillFlowContainer
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{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Direction = FillDirection.Vertical,
Children = new Drawable[]
{
deletedCommentsCounter = new DeletedCommentsCounter
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{
ShowDeleted = { BindTarget = ShowDeleted }
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},
new Container
{
AutoSizeAxes = Axes.Y,
RelativeSizeAxes = Axes.X,
Child = moreButton = new CommentsShowMoreButton
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
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Margin = new MarginPadding(5),
Action = getComments,
IsLoading = true,
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}
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}
}
}
}
}
}
}
});
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}
protected override void LoadComplete()
{
Sort.BindValueChanged(_ => refetchComments(), true);
base.LoadComplete();
}
/// <param name="type">The type of resource to get comments for.</param>
/// <param name="id">The id of the resource to get comments for.</param>
public void ShowComments(CommentableType type, long id)
{
this.type = type;
this.id = id;
if (!IsLoaded)
return;
// only reset when changing ID/type. other refetch ops are generally just changing sort order.
commentCounter.Current.Value = 0;
refetchComments();
}
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private void refetchComments()
{
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clearComments();
getComments();
}
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private void getComments()
{
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if (!id.HasValue)
return;
request?.Cancel();
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loadCancellation?.Cancel();
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request = new GetCommentsRequest(type, id.Value, Sort.Value, currentPage++);
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request.Success += onSuccess;
api.Queue(request);
}
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private void clearComments()
{
currentPage = 1;
deletedCommentsCounter.Count.Value = 0;
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moreButton.IsLoading = true;
content.Clear();
}
private void onSuccess(CommentBundle response)
{
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loadCancellation = new CancellationTokenSource();
var page = new FillFlowContainer
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{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Direction = FillDirection.Vertical,
};
foreach (var c in response.Comments)
{
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if (c.IsTopLevel)
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{
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page.Add(new DrawableComment(c)
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{
ShowDeleted = { BindTarget = ShowDeleted }
});
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}
}
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LoadComponentAsync(page, loaded =>
{
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content.Add(loaded);
deletedCommentsCounter.Count.Value += response.Comments.Count(c => c.IsDeleted && c.IsTopLevel);
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if (response.HasMore)
{
int loadedTopLevelComments = 0;
content.Children.OfType<FillFlowContainer>().ForEach(p => loadedTopLevelComments += p.Children.OfType<DrawableComment>().Count());
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moreButton.Current.Value = response.TopLevelCount - loadedTopLevelComments;
moreButton.IsLoading = false;
}
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commentCounter.Current.Value = response.Total;
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moreButton.FadeTo(response.HasMore ? 1 : 0);
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}, loadCancellation.Token);
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}
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protected override void Dispose(bool isDisposing)
{
request?.Cancel();
loadCancellation?.Cancel();
base.Dispose(isDisposing);
}
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}
}