// Copyright (c) ppy Pty Ltd . Licensed under the MIT Licence. // See the LICENCE file in the repository root for full licence text. using System.Collections.Generic; using System.Linq; using System.Threading; using osu.Framework.Allocation; using osu.Framework.Graphics; using osu.Framework.Graphics.Containers; using osu.Framework.Graphics.Shapes; using osu.Framework.Graphics.Sprites; using osu.Framework.Graphics.Textures; using osu.Framework.Input.Events; using osu.Game.Audio; using osu.Game.Beatmaps; using osu.Game.Graphics.Containers; using osu.Game.Graphics.Sprites; using osu.Game.Graphics.UserInterface; using osu.Game.Overlays.BeatmapListing; using osu.Game.Overlays.BeatmapListing.Panels; using osuTK; namespace osu.Game.Overlays { public class BeatmapListingOverlay : FullscreenOverlay { [Resolved] private PreviewTrackManager previewTrackManager { get; set; } private Drawable currentContent; private LoadingLayer loadingLayer; private Container panelTarget; public BeatmapListingOverlay() : base(OverlayColourScheme.Blue) { } private BeatmapListingFilterControl filterControl; [BackgroundDependencyLoader] private void load() { Children = new Drawable[] { new Box { RelativeSizeAxes = Axes.Both, Colour = ColourProvider.Background6 }, new OverlayScrollContainer { RelativeSizeAxes = Axes.Both, ScrollbarVisible = false, Child = new ReverseChildIDFillFlowContainer { AutoSizeAxes = Axes.Y, RelativeSizeAxes = Axes.X, Direction = FillDirection.Vertical, Children = new Drawable[] { new BeatmapListingHeader(), filterControl = new BeatmapListingFilterControl { SearchStarted = onSearchStarted, SearchFinished = onSearchFinished, }, new Container { AutoSizeAxes = Axes.Y, RelativeSizeAxes = Axes.X, Children = new Drawable[] { new Box { RelativeSizeAxes = Axes.Both, Colour = ColourProvider.Background4, }, panelTarget = new Container { AutoSizeAxes = Axes.Y, RelativeSizeAxes = Axes.X, Padding = new MarginPadding { Horizontal = 20 } }, loadingLayer = new LoadingLayer(panelTarget) } }, } } } }; } protected override void OnFocus(FocusEvent e) { base.OnFocus(e); filterControl.TakeFocus(); } private CancellationTokenSource cancellationToken; private void onSearchStarted() { cancellationToken?.Cancel(); previewTrackManager.StopAnyPlaying(this); if (panelTarget.Any()) loadingLayer.Show(); } private void onSearchFinished(List beatmaps) { if (!beatmaps.Any()) { LoadComponentAsync(new NotFoundDrawable(), addContentToPlaceholder, (cancellationToken = new CancellationTokenSource()).Token); return; } var newPanels = new FillFlowContainer { RelativeSizeAxes = Axes.X, AutoSizeAxes = Axes.Y, Spacing = new Vector2(10), Alpha = 0, Margin = new MarginPadding { Vertical = 15 }, ChildrenEnumerable = beatmaps.Select(b => new GridBeatmapPanel(b) { Anchor = Anchor.TopCentre, Origin = Anchor.TopCentre, }) }; LoadComponentAsync(newPanels, addContentToPlaceholder, (cancellationToken = new CancellationTokenSource()).Token); } private void addContentToPlaceholder(Drawable content) { loadingLayer.Hide(); var lastContent = currentContent; if (lastContent != null) { lastContent.FadeOut(100, Easing.OutQuint).Expire(); // Consider the case when the new content is smaller than the last content. // If the auto-size computation is delayed until fade out completes, the background remain high for too long making the resulting transition to the smaller height look weird. // At the same time, if the last content's height is bypassed immediately, there is a period where the new content is at Alpha = 0 when the auto-sized height will be 0. // To resolve both of these issues, the bypass is delayed until a point when the content transitions (fade-in and fade-out) overlap and it looks good to do so. lastContent.Delay(25).Schedule(() => lastContent.BypassAutoSizeAxes = Axes.Y); } panelTarget.Add(currentContent = content); currentContent.FadeIn(200, Easing.OutQuint); } protected override void Dispose(bool isDisposing) { cancellationToken?.Cancel(); base.Dispose(isDisposing); } private class NotFoundDrawable : CompositeDrawable { public NotFoundDrawable() { RelativeSizeAxes = Axes.X; Height = 250; Alpha = 0; Margin = new MarginPadding { Top = 15 }; } [BackgroundDependencyLoader] private void load(TextureStore textures) { AddInternal(new FillFlowContainer { Anchor = Anchor.Centre, Origin = Anchor.Centre, RelativeSizeAxes = Axes.Y, AutoSizeAxes = Axes.X, Direction = FillDirection.Horizontal, Spacing = new Vector2(10, 0), Children = new Drawable[] { new Sprite { Anchor = Anchor.Centre, Origin = Anchor.Centre, RelativeSizeAxes = Axes.Both, FillMode = FillMode.Fit, Texture = textures.Get(@"Online/not-found") }, new OsuSpriteText { Anchor = Anchor.Centre, Origin = Anchor.Centre, Text = @"... nope, nothing found.", } } }); } } } }