mirror of
https://github.com/ppy/osu.git
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163 lines
4.7 KiB
C#
163 lines
4.7 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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#nullable disable
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using System;
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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.Game.Extensions;
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using osu.Game.Online.API;
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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 osu.Game.Overlays.Wiki;
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namespace osu.Game.Overlays
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{
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public class WikiOverlay : OnlineOverlay<WikiHeader>
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{
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private const string index_path = @"main_page";
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private readonly Bindable<string> path = new Bindable<string>(index_path);
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private readonly Bindable<APIWikiPage> wikiData = new Bindable<APIWikiPage>();
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[Resolved]
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private IAPIProvider api { get; set; }
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private GetWikiRequest request;
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private CancellationTokenSource cancellationToken;
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private bool displayUpdateRequired = true;
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private WikiArticlePage articlePage;
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public WikiOverlay()
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: base(OverlayColourScheme.Orange, false)
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{
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}
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public void ShowPage(string pagePath = index_path)
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{
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path.Value = pagePath.Trim('/');
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Show();
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}
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protected override WikiHeader CreateHeader() => new WikiHeader
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{
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ShowIndexPage = () => ShowPage(),
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ShowParentPage = showParentPage,
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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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path.BindValueChanged(onPathChanged);
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wikiData.BindTo(Header.WikiPageData);
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}
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protected override void PopIn()
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{
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base.PopIn();
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if (displayUpdateRequired)
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{
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path.TriggerChange();
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displayUpdateRequired = false;
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}
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}
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protected override void PopOutComplete()
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{
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base.PopOutComplete();
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displayUpdateRequired = true;
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}
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protected void LoadDisplay(Drawable display)
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{
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ScrollFlow.ScrollToStart();
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LoadComponentAsync(display, loaded =>
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{
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Child = loaded;
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Loading.Hide();
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}, (cancellationToken = new CancellationTokenSource()).Token);
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}
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protected override void UpdateAfterChildren()
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{
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base.UpdateAfterChildren();
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if (articlePage != null)
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{
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articlePage.SidebarContainer.Height = DrawHeight;
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articlePage.SidebarContainer.Y = Math.Clamp(ScrollFlow.Current - Header.DrawHeight, 0, Math.Max(ScrollFlow.ScrollContent.DrawHeight - DrawHeight - Header.DrawHeight, 0));
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}
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}
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private void onPathChanged(ValueChangedEvent<string> e)
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{
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cancellationToken?.Cancel();
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request?.Cancel();
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string[] values = e.NewValue.Split('/', 2);
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if (values.Length > 1 && LanguageExtensions.TryParseCultureCode(values[0], out var language))
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request = new GetWikiRequest(values[1], language);
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else
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request = new GetWikiRequest(e.NewValue);
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Loading.Show();
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request.Success += response => Schedule(() => onSuccess(response));
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request.Failure += _ => Schedule(onFail);
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api.PerformAsync(request);
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}
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private void onSuccess(APIWikiPage response)
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{
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wikiData.Value = response;
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if (response.Layout == index_path)
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{
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LoadDisplay(new WikiMainPage
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{
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Markdown = response.Markdown,
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Padding = new MarginPadding
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{
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Vertical = 20,
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Horizontal = 50,
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},
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});
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}
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else
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{
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LoadDisplay(articlePage = new WikiArticlePage($@"{api.WebsiteRootUrl}/wiki/{path.Value}/", response.Markdown));
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}
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}
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private void onFail()
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{
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LoadDisplay(articlePage = new WikiArticlePage($@"{api.WebsiteRootUrl}/wiki/",
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$"Something went wrong when trying to fetch page \"{path.Value}\".\n\n[Return to the main page](Main_Page)."));
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}
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private void showParentPage()
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{
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string parentPath = string.Join("/", path.Value.Split('/').SkipLast(1));
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ShowPage(parentPath);
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}
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protected override void Dispose(bool isDisposing)
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{
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cancellationToken?.Cancel();
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request?.Cancel();
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base.Dispose(isDisposing);
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}
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}
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}
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