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98 lines
3.3 KiB
C#
98 lines
3.3 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 System.Collections.Generic;
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using System.Collections.Specialized;
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using System.Linq;
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using osu.Framework.Bindables;
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using osu.Framework.Extensions.IEnumerableExtensions;
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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.Containers;
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using osu.Game.Online.Rooms;
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using osuTK;
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namespace osu.Game.Screens.OnlinePlay
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{
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public class DrawableRoomPlaylist : OsuRearrangeableListContainer<PlaylistItem>
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{
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public readonly Bindable<PlaylistItem> SelectedItem = new Bindable<PlaylistItem>();
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private readonly bool allowEdit;
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private readonly bool allowSelection;
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private readonly bool showItemOwner;
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public DrawableRoomPlaylist(bool allowEdit, bool allowSelection, bool reverse = false, bool showItemOwner = false)
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{
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this.allowEdit = allowEdit;
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this.allowSelection = allowSelection;
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this.showItemOwner = showItemOwner;
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((ReversibleFillFlowContainer)ListContainer).Reverse = reverse;
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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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// Scheduled since items are removed and re-added upon rearrangement
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Items.CollectionChanged += (_, args) => Schedule(() =>
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{
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switch (args.Action)
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{
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case NotifyCollectionChangedAction.Remove:
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if (allowSelection && args.OldItems.Contains(SelectedItem))
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SelectedItem.Value = null;
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break;
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}
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});
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}
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protected override ScrollContainer<Drawable> CreateScrollContainer() => base.CreateScrollContainer().With(d =>
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{
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d.ScrollbarVisible = false;
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});
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protected override FillFlowContainer<RearrangeableListItem<PlaylistItem>> CreateListFillFlowContainer() => new ReversibleFillFlowContainer
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{
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Spacing = new Vector2(0, 2)
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};
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protected override OsuRearrangeableListItem<PlaylistItem> CreateOsuDrawable(PlaylistItem item) => new DrawableRoomPlaylistItem(item, allowEdit, allowSelection, showItemOwner)
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{
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SelectedItem = { BindTarget = SelectedItem },
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RequestDeletion = requestDeletion
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};
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private void requestDeletion(PlaylistItem item)
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{
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if (allowSelection && SelectedItem.Value == item)
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{
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if (Items.Count == 1)
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SelectedItem.Value = null;
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else
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SelectedItem.Value = Items.GetNext(item) ?? Items[^2];
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}
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Items.Remove(item);
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}
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private class ReversibleFillFlowContainer : FillFlowContainer<RearrangeableListItem<PlaylistItem>>
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{
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private bool reverse;
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public bool Reverse
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{
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get => reverse;
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set
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{
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reverse = value;
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Invalidate();
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}
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}
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public override IEnumerable<Drawable> FlowingChildren => Reverse ? base.FlowingChildren.OrderBy(d => -GetLayoutPosition(d)) : base.FlowingChildren;
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}
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}
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}
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