mirror of https://github.com/ppy/osu
282 lines
9.7 KiB
C#
282 lines
9.7 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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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Threading.Tasks;
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using JetBrains.Annotations;
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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.Framework.Graphics.Cursor;
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using osu.Framework.Graphics.UserInterface;
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using osu.Framework.Utils;
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using osu.Game.Beatmaps;
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using osu.Game.Collections;
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using osu.Game.Graphics.UserInterface;
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using osu.Game.Overlays;
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namespace osu.Game.Screens.Select.Carousel
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{
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public class DrawableCarouselBeatmapSet : DrawableCarouselItem, IHasContextMenu
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{
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public const float HEIGHT = MAX_HEIGHT;
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private Action<BeatmapSetInfo> restoreHiddenRequested;
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private Action<int> viewDetails;
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[Resolved(CanBeNull = true)]
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private IDialogOverlay dialogOverlay { get; set; }
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[Resolved(CanBeNull = true)]
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private CollectionManager collectionManager { get; set; }
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[Resolved(CanBeNull = true)]
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private ManageCollectionsDialog manageCollectionsDialog { get; set; }
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public IEnumerable<DrawableCarouselItem> DrawableBeatmaps => beatmapContainer?.IsLoaded != true ? Enumerable.Empty<DrawableCarouselItem>() : beatmapContainer.AliveChildren;
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[CanBeNull]
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private Container<DrawableCarouselItem> beatmapContainer;
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private BeatmapSetInfo beatmapSet;
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[CanBeNull]
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private Task beatmapsLoadTask;
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[Resolved]
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private BeatmapManager manager { get; set; }
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protected override void FreeAfterUse()
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{
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base.FreeAfterUse();
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Item = null;
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ClearTransforms();
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}
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[BackgroundDependencyLoader(true)]
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private void load(BeatmapSetOverlay beatmapOverlay)
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{
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restoreHiddenRequested = s =>
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{
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foreach (var b in s.Beatmaps)
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manager.Restore(b);
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};
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if (beatmapOverlay != null)
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viewDetails = beatmapOverlay.FetchAndShowBeatmapSet;
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}
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protected override void Update()
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{
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base.Update();
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// position updates should not occur if the item is filtered away.
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// this avoids panels flying across the screen only to be eventually off-screen or faded out.
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if (!Item.Visible)
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return;
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float targetY = Item.CarouselYPosition;
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if (Precision.AlmostEquals(targetY, Y))
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Y = targetY;
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else
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// algorithm for this is taken from ScrollContainer.
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// while it doesn't necessarily need to match 1:1, as we are emulating scroll in some cases this feels most correct.
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Y = (float)Interpolation.Lerp(targetY, Y, Math.Exp(-0.01 * Time.Elapsed));
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}
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protected override void UpdateItem()
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{
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base.UpdateItem();
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Content.Clear();
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beatmapContainer = null;
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beatmapsLoadTask = null;
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if (Item == null)
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return;
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beatmapSet = ((CarouselBeatmapSet)Item).BeatmapSet;
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DelayedLoadWrapper background;
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DelayedLoadWrapper mainFlow;
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Header.Children = new Drawable[]
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{
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background = new DelayedLoadWrapper(() => new SetPanelBackground(manager.GetWorkingBeatmap(beatmapSet.Beatmaps.FirstOrDefault()))
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{
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RelativeSizeAxes = Axes.Both,
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}, 300)
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{
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RelativeSizeAxes = Axes.Both
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},
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mainFlow = new DelayedLoadWrapper(() => new SetPanelContent((CarouselBeatmapSet)Item), 100)
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{
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RelativeSizeAxes = Axes.Both
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},
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};
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background.DelayedLoadComplete += fadeContentIn;
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mainFlow.DelayedLoadComplete += fadeContentIn;
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}
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private void fadeContentIn(Drawable d) => d.FadeInFromZero(750, Easing.OutQuint);
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protected override void Deselected()
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{
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base.Deselected();
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MovementContainer.MoveToX(0, 500, Easing.OutExpo);
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updateBeatmapYPositions();
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}
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protected override void Selected()
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{
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base.Selected();
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MovementContainer.MoveToX(-100, 500, Easing.OutExpo);
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updateBeatmapDifficulties();
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}
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private void updateBeatmapDifficulties()
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{
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var carouselBeatmapSet = (CarouselBeatmapSet)Item;
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var visibleBeatmaps = carouselBeatmapSet.Children.Where(c => c.Visible).ToArray();
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// if we are already displaying all the correct beatmaps, only run animation updates.
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// note that the displayed beatmaps may change due to the applied filter.
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// a future optimisation could add/remove only changed difficulties rather than reinitialise.
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if (beatmapContainer != null && visibleBeatmaps.Length == beatmapContainer.Count && visibleBeatmaps.All(b => beatmapContainer.Any(c => c.Item == b)))
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{
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updateBeatmapYPositions();
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}
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else
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{
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// on selection we show our child beatmaps.
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// for now this is a simple drawable construction each selection.
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// can be improved in the future.
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beatmapContainer = new Container<DrawableCarouselItem>
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{
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X = 100,
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RelativeSizeAxes = Axes.Both,
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ChildrenEnumerable = visibleBeatmaps.Select(c => c.CreateDrawableRepresentation())
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};
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beatmapsLoadTask = LoadComponentAsync(beatmapContainer, loaded =>
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{
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// make sure the pooled target hasn't changed.
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if (beatmapContainer != loaded)
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return;
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Content.Child = loaded;
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updateBeatmapYPositions();
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});
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}
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}
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private void updateBeatmapYPositions()
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{
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if (beatmapContainer == null)
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return;
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if (beatmapsLoadTask == null || !beatmapsLoadTask.IsCompleted)
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return;
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float yPos = DrawableCarouselBeatmap.CAROUSEL_BEATMAP_SPACING;
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bool isSelected = Item.State.Value == CarouselItemState.Selected;
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foreach (var panel in beatmapContainer.Children)
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{
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if (isSelected)
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{
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panel.MoveToY(yPos, 800, Easing.OutQuint);
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yPos += panel.Item.TotalHeight;
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}
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else
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panel.MoveToY(0, 800, Easing.OutQuint);
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}
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}
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public MenuItem[] ContextMenuItems
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{
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get
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{
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Debug.Assert(beatmapSet != null);
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List<MenuItem> items = new List<MenuItem>();
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if (Item.State.Value == CarouselItemState.NotSelected)
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items.Add(new OsuMenuItem("Expand", MenuItemType.Highlighted, () => Item.State.Value = CarouselItemState.Selected));
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if (beatmapSet.OnlineID > 0 && viewDetails != null)
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items.Add(new OsuMenuItem("Details...", MenuItemType.Standard, () => viewDetails(beatmapSet.OnlineID)));
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if (collectionManager != null)
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{
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var collectionItems = collectionManager.Collections.Select(createCollectionMenuItem).ToList();
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if (manageCollectionsDialog != null)
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collectionItems.Add(new OsuMenuItem("Manage...", MenuItemType.Standard, manageCollectionsDialog.Show));
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items.Add(new OsuMenuItem("Collections") { Items = collectionItems });
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}
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if (beatmapSet.Beatmaps.Any(b => b.Hidden))
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items.Add(new OsuMenuItem("Restore all hidden", MenuItemType.Standard, () => restoreHiddenRequested(beatmapSet)));
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if (dialogOverlay != null)
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items.Add(new OsuMenuItem("Delete...", MenuItemType.Destructive, () => dialogOverlay.Push(new BeatmapDeleteDialog(beatmapSet))));
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return items.ToArray();
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}
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}
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private MenuItem createCollectionMenuItem(BeatmapCollection collection)
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{
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Debug.Assert(beatmapSet != null);
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TernaryState state;
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int countExisting = beatmapSet.Beatmaps.Count(b => collection.BeatmapHashes.Contains(b.MD5Hash));
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if (countExisting == beatmapSet.Beatmaps.Count)
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state = TernaryState.True;
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else if (countExisting > 0)
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state = TernaryState.Indeterminate;
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else
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state = TernaryState.False;
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return new TernaryStateToggleMenuItem(collection.Name.Value, MenuItemType.Standard, s =>
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{
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foreach (var b in beatmapSet.Beatmaps)
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{
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switch (s)
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{
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case TernaryState.True:
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if (collection.BeatmapHashes.Contains(b.MD5Hash))
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continue;
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collection.BeatmapHashes.Add(b.MD5Hash);
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break;
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case TernaryState.False:
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collection.BeatmapHashes.Remove(b.MD5Hash);
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break;
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}
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}
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})
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{
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State = { Value = state }
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};
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}
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}
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}
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