mirror of https://github.com/ppy/osu
100 lines
3.8 KiB
C#
100 lines
3.8 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.Bindables;
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using osu.Framework.Graphics;
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namespace osu.Game.Skinning
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{
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public class SkinnableTargetContainer : SkinReloadableDrawable, ISkinnableTarget
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{
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private SkinnableTargetComponentsContainer content;
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public SkinnableTarget Target { get; }
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public IBindableList<ISkinnableDrawable> Components => components;
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private readonly BindableList<ISkinnableDrawable> components = new BindableList<ISkinnableDrawable>();
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public override bool IsPresent => base.IsPresent || Scheduler.HasPendingTasks; // ensure that components are loaded even if the target container is hidden (ie. due to user toggle).
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public bool ComponentsLoaded { get; private set; }
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private CancellationTokenSource cancellationSource;
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public SkinnableTargetContainer(SkinnableTarget target)
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{
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Target = target;
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}
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/// <summary>
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/// Reload all components in this container from the current skin.
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/// </summary>
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public void Reload()
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{
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ClearInternal();
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components.Clear();
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ComponentsLoaded = false;
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content = CurrentSkin.GetDrawableComponent(new SkinnableTargetComponent(Target)) as SkinnableTargetComponentsContainer;
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cancellationSource?.Cancel();
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cancellationSource = null;
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if (content != null)
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{
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LoadComponentAsync(content, wrapper =>
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{
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AddInternal(wrapper);
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components.AddRange(wrapper.Children.OfType<ISkinnableDrawable>());
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ComponentsLoaded = true;
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}, (cancellationSource = new CancellationTokenSource()).Token);
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}
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else
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ComponentsLoaded = true;
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}
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/// <inheritdoc cref="ISkinnableTarget"/>
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/// <exception cref="NotSupportedException">Thrown when attempting to add an element to a target which is not supported by the current skin.</exception>
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/// <exception cref="ArgumentException">Thrown if the provided instance is not a <see cref="Drawable"/>.</exception>
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public void Add(ISkinnableDrawable component)
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{
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if (content == null)
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throw new NotSupportedException("Attempting to add a new component to a target container which is not supported by the current skin.");
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if (!(component is Drawable drawable))
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throw new ArgumentException($"Provided argument must be of type {nameof(Drawable)}.", nameof(component));
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content.Add(drawable);
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components.Add(component);
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}
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/// <inheritdoc cref="ISkinnableTarget"/>
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/// <exception cref="NotSupportedException">Thrown when attempting to add an element to a target which is not supported by the current skin.</exception>
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/// <exception cref="ArgumentException">Thrown if the provided instance is not a <see cref="Drawable"/>.</exception>
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public void Remove(ISkinnableDrawable component)
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{
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if (content == null)
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throw new NotSupportedException("Attempting to remove a new component from a target container which is not supported by the current skin.");
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if (!(component is Drawable drawable))
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throw new ArgumentException($"Provided argument must be of type {nameof(Drawable)}.", nameof(component));
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content.Remove(drawable);
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components.Remove(component);
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}
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protected override void SkinChanged(ISkinSource skin)
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{
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base.SkinChanged(skin);
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Reload();
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}
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}
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}
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