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Code Issues Releases Wiki Activity

Add async loading support

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This commit is contained in:
Andrei Zavatski 2020-02-26 18:00:48 +03:00
parent 56c41a614a
commit ae4f5cdf37
1 changed files with 30 additions and 15 deletions
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45
osu.Game/Overlays/Comments/CommentsContainer.cs
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@ -9,6 +9,7 @@ using osu.Framework.Graphics;
using osu.Framework.Bindables;
using osu.Framework.Graphics.Shapes;
using osu.Game.Online.API.Requests.Responses;
using System.Threading;
using System.Linq;
using osu.Framework.Extensions.IEnumerableExtensions;
using osu.Game.Users;
@ -32,6 +33,7 @@ namespace osu.Game.Overlays.Comments
private IAPIProvider api { get; set; }
private GetCommentsRequest request;
private CancellationTokenSource loadCancellation;
private int currentPage;
private FillFlowContainer content;
@ -152,6 +154,7 @@ namespace osu.Game.Overlays.Comments
return;
request?.Cancel();
loadCancellation?.Cancel();
request = new GetCommentsRequest(id.Value, type.Value, Sort.Value, currentPage++, 0);
request.Success += response => Schedule(() => onSuccess(response));
api.PerformAsync(request);
@ -164,6 +167,7 @@ namespace osu.Game.Overlays.Comments
moreButton.Show();
moreButton.IsLoading = true;
content.Clear();
commentDictionary.Clear();
}
private readonly Dictionary<long, DrawableComment> commentDictionary = new Dictionary<long, DrawableComment>();
@ -173,26 +177,33 @@ namespace osu.Game.Overlays.Comments
if (!response.Comments.Any())
{
content.Add(new NoCommentsPlaceholder());
moreButton.Hide();
return;
}
else
{
appendComments(response);
var topLevelComments = appendComments(response);
deletedCommentsCounter.Count.Value += response.Comments.Count(c => c.IsDeleted && c.IsTopLevel);
}
LoadComponentsAsync(topLevelComments, loaded =>
{
content.AddRange(loaded);
if (response.HasMore)
{
int loadedTopLevelComments = 0;
content.Children.OfType<DrawableComment>().ForEach(p => loadedTopLevelComments++);
deletedCommentsCounter.Count.Value += response.Comments.Count(c => c.IsDeleted && c.IsTopLevel);
commentCounter.Current.Value = response.Total;
moreButton.Current.Value = response.TopLevelCount - loadedTopLevelComments;
moreButton.IsLoading = false;
}
else
{
moreButton.Hide();
if (response.HasMore)
{
int loadedTopLevelComments = 0;
content.Children.OfType<DrawableComment>().ForEach(p => loadedTopLevelComments++);
moreButton.Current.Value = response.TopLevelCount - loadedTopLevelComments;
moreButton.IsLoading = false;
}
else
{
moreButton.Hide();
}
}, (loadCancellation = new CancellationTokenSource()).Token);
}
}
@ -200,8 +211,9 @@ namespace osu.Game.Overlays.Comments
/// Appends retrieved comments to the subtree rooted of comments in this page.
/// </summary>
/// <param name="bundle">The bundle of comments to add.</param>
private void appendComments([NotNull] CommentBundle bundle)
private List<DrawableComment> appendComments([NotNull] CommentBundle bundle)
{
var topLevelComments = new List<DrawableComment>();
var orphaned = new List<Comment>();
foreach (var comment in bundle.Comments.Concat(bundle.IncludedComments))
@ -217,6 +229,8 @@ namespace osu.Game.Overlays.Comments
foreach (var o in orphaned)
addNewComment(o);
return topLevelComments;
void addNewComment(Comment comment)
{
var drawableComment = getDrawableComment(comment);
@ -224,7 +238,7 @@ namespace osu.Game.Overlays.Comments
if (comment.ParentId == null)
{
// Comments that have no parent are added as top-level comments to the flow.
content.Add(drawableComment);
topLevelComments.Add(drawableComment);
}
else if (commentDictionary.TryGetValue(comment.ParentId.Value, out var parentDrawable))
{
@ -266,6 +280,7 @@ namespace osu.Game.Overlays.Comments
protected override void Dispose(bool isDisposing)
{
request?.Cancel();
loadCancellation?.Cancel();
base.Dispose(isDisposing);
}