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https://github.com/ppy/osu
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101 lines
3.4 KiB
C#
101 lines
3.4 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 osu.Framework.Allocation;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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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.Online.Placeholders;
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namespace osu.Game.Online
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{
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/// <summary>
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/// A <see cref="Container"/> for displaying online content which require a local user to be logged in.
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/// Shows its children only when the local user is logged in and supports displaying a placeholder if not.
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/// </summary>
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public abstract class OnlineViewContainer : Container, IOnlineComponent
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{
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protected LoadingSpinner LoadingSpinner { get; private set; }
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protected override Container<Drawable> Content { get; } = new Container { RelativeSizeAxes = Axes.Both };
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private readonly string placeholderMessage;
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private Placeholder placeholder;
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private const double transform_duration = 300;
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[Resolved]
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protected IAPIProvider API { get; private set; }
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protected OnlineViewContainer(string placeholderMessage)
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{
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this.placeholderMessage = placeholderMessage;
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}
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[BackgroundDependencyLoader]
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private void load()
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{
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InternalChildren = new Drawable[]
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{
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Content,
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placeholder = new LoginPlaceholder(placeholderMessage),
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LoadingSpinner = new LoadingSpinner
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{
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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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API.Register(this);
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}
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public virtual void APIStateChanged(IAPIProvider api, APIState state)
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{
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switch (state)
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{
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case APIState.Offline:
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PopContentOut(Content);
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placeholder.ScaleTo(0.8f).Then().ScaleTo(1, 3 * transform_duration, Easing.OutQuint);
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placeholder.FadeInFromZero(2 * transform_duration, Easing.OutQuint);
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LoadingSpinner.Hide();
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break;
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case APIState.Online:
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PopContentIn(Content);
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placeholder.FadeOut(transform_duration / 2, Easing.OutQuint);
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LoadingSpinner.Hide();
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break;
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case APIState.Failing:
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case APIState.Connecting:
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PopContentOut(Content);
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LoadingSpinner.Show();
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placeholder.FadeOut(transform_duration / 2, Easing.OutQuint);
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break;
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}
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}
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/// <summary>
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/// Applies a transform to the online content to make it hidden.
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/// </summary>
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protected virtual void PopContentOut(Drawable content) => content.FadeOut(transform_duration / 2, Easing.OutQuint);
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/// <summary>
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/// Applies a transform to the online content to make it visible.
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/// </summary>
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protected virtual void PopContentIn(Drawable content) => content.FadeIn(transform_duration, Easing.OutQuint);
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protected override void Dispose(bool isDisposing)
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{
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API?.Unregister(this);
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base.Dispose(isDisposing);
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}
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}
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}
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