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osu-lazer/osu.Game/Beatmaps/Drawables/Cards/BeatmapCardContent.cs
2022-01-03 18:33:32 +01:00

158 lines
5.7 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
#nullable enable
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Effects;
using osu.Framework.Graphics.Shapes;
using osu.Framework.Threading;
using osu.Game.Graphics.Containers;
using osu.Game.Overlays;
using osuTK;
namespace osu.Game.Beatmaps.Drawables.Cards
{
public class BeatmapCardContent : CompositeDrawable
{
public Drawable MainContent
{
set => bodyContent.Child = value;
}
public Drawable ExpandedContent
{
set => dropdownScroll.Child = value;
}
public IBindable<bool> Expanded => expanded;
private readonly BindableBool expanded = new BindableBool();
private readonly Box background;
private readonly Container content;
private readonly Container bodyContent;
private readonly Container dropdownContent;
private readonly OsuScrollContainer dropdownScroll;
private readonly Container borderContainer;
public BeatmapCardContent(float height)
{
RelativeSizeAxes = Axes.X;
Height = height;
Anchor = Anchor.Centre;
Origin = Anchor.Centre;
InternalChild = content = new HoverHandlingContainer
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
CornerRadius = BeatmapCard.CORNER_RADIUS,
Masking = true,
Unhovered = _ => updateFromHoverChange(),
Children = new Drawable[]
{
background = new Box
{
RelativeSizeAxes = Axes.Both
},
bodyContent = new Container
{
RelativeSizeAxes = Axes.X,
Height = height,
CornerRadius = BeatmapCard.CORNER_RADIUS,
Masking = true,
},
dropdownContent = new HoverHandlingContainer
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Margin = new MarginPadding { Top = height },
Alpha = 0,
Hovered = _ =>
{
updateFromHoverChange();
return true;
},
Unhovered = _ => updateFromHoverChange(),
Child = dropdownScroll = new ExpandedContentScrollContainer
{
RelativeSizeAxes = Axes.X,
ScrollbarVisible = false
}
},
borderContainer = new Container
{
RelativeSizeAxes = Axes.Both,
CornerRadius = BeatmapCard.CORNER_RADIUS,
Masking = true,
BorderThickness = 3,
Child = new Box
{
RelativeSizeAxes = Axes.Both,
Alpha = 0,
AlwaysPresent = true
}
}
}
};
}
[BackgroundDependencyLoader]
private void load(OverlayColourProvider colourProvider)
{
background.Colour = colourProvider.Background2;
borderContainer.BorderColour = colourProvider.Highlight1;
}
protected override void LoadComplete()
{
base.LoadComplete();
Expanded.BindValueChanged(_ => updateState(), true);
FinishTransforms(true);
}
private ScheduledDelegate? scheduledExpandedChange;
public void ExpandAfterDelay() => queueExpandedStateChange(true, 100);
public void CancelExpand() => scheduledExpandedChange?.Cancel();
private void updateFromHoverChange() =>
queueExpandedStateChange(content.IsHovered || dropdownContent.IsHovered, 100);
private void queueExpandedStateChange(bool newState, int delay = 0)
{
if (Expanded.Disabled)
return;
scheduledExpandedChange?.Cancel();
scheduledExpandedChange = Scheduler.AddDelayed(() => expanded.Value = newState, delay);
}
private void updateState()
{
// Scale value is intentionally chosen to fit in the spacing of listing displays, as to not overlap horizontally with adjacent cards.
// This avoids depth issues where a hovered (scaled) card to the right of another card would be beneath the card to the left.
this.ScaleTo(Expanded.Value ? 1.03f : 1, 500, Easing.OutQuint);
background.FadeTo(Expanded.Value ? 1 : 0, BeatmapCard.TRANSITION_DURATION, Easing.OutQuint);
dropdownContent.FadeTo(Expanded.Value ? 1 : 0, BeatmapCard.TRANSITION_DURATION, Easing.OutQuint);
borderContainer.FadeTo(Expanded.Value ? 1 : 0, BeatmapCard.TRANSITION_DURATION, Easing.OutQuint);
content.TweenEdgeEffectTo(new EdgeEffectParameters
{
Type = EdgeEffectType.Shadow,
Offset = new Vector2(0, 2),
Radius = 10,
Colour = Colour4.Black.Opacity(Expanded.Value ? 0.3f : 0f),
Hollow = true,
}, BeatmapCard.TRANSITION_DURATION, Easing.OutQuint);
}
}
}