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osu-lazer/osu.Game/Collections/DrawableCollectionListItem.cs
2020-09-09 15:39:15 +09:00

238 lines
8.6 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.
using System;
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Extensions.Color4Extensions;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Shapes;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Input.Events;
using osu.Game.Graphics;
using osu.Game.Graphics.Containers;
using osu.Game.Graphics.UserInterface;
using osu.Game.Overlays;
using osuTK;
using osuTK.Graphics;
namespace osu.Game.Collections
{
/// <summary>
/// Visualises a <see cref="BeatmapCollection"/> inside a <see cref="DrawableCollectionList"/>.
/// </summary>
public class DrawableCollectionListItem : OsuRearrangeableListItem<BeatmapCollection>
{
private const float item_height = 35;
private const float button_width = item_height * 0.75f;
/// <summary>
/// Whether the <see cref="BeatmapCollection"/> currently exists inside the <see cref="CollectionManager"/>.
/// </summary>
public IBindable<bool> IsCreated => isCreated;
private readonly Bindable<bool> isCreated = new Bindable<bool>();
/// <summary>
/// Creates a new <see cref="DrawableCollectionListItem"/>.
/// </summary>
/// <param name="item">The <see cref="BeatmapCollection"/>.</param>
/// <param name="isCreated">Whether <paramref name="item"/> currently exists inside the <see cref="CollectionManager"/>.</param>
public DrawableCollectionListItem(BeatmapCollection item, bool isCreated)
: base(item)
{
this.isCreated.Value = isCreated;
ShowDragHandle.BindTo(this.isCreated);
}
protected override Drawable CreateContent() => new ItemContent(Model)
{
IsCreated = { BindTarget = isCreated }
};
/// <summary>
/// The main content of the <see cref="DrawableCollectionListItem"/>.
/// </summary>
private class ItemContent : CircularContainer
{
public readonly Bindable<bool> IsCreated = new Bindable<bool>();
private readonly IBindable<string> collectionName;
private readonly BeatmapCollection collection;
[Resolved(CanBeNull = true)]
private CollectionManager collectionManager { get; set; }
private Container textBoxPaddingContainer;
private ItemTextBox textBox;
public ItemContent(BeatmapCollection collection)
{
this.collection = collection;
RelativeSizeAxes = Axes.X;
Height = item_height;
Masking = true;
collectionName = collection.Name.GetBoundCopy();
}
[BackgroundDependencyLoader]
private void load(OsuColour colours)
{
Children = new Drawable[]
{
new DeleteButton(collection)
{
Anchor = Anchor.CentreRight,
Origin = Anchor.CentreRight,
IsCreated = { BindTarget = IsCreated },
IsTextBoxHovered = v => textBox.ReceivePositionalInputAt(v)
},
textBoxPaddingContainer = new Container
{
RelativeSizeAxes = Axes.Both,
Padding = new MarginPadding { Right = button_width },
Children = new Drawable[]
{
textBox = new ItemTextBox
{
RelativeSizeAxes = Axes.Both,
Size = Vector2.One,
CornerRadius = item_height / 2,
Current = collection.Name,
PlaceholderText = IsCreated.Value ? string.Empty : "Create a new collection"
},
}
},
};
}
protected override void LoadComplete()
{
base.LoadComplete();
collectionName.BindValueChanged(_ => createNewCollection(), true);
IsCreated.BindValueChanged(created => textBoxPaddingContainer.Padding = new MarginPadding { Right = created.NewValue ? button_width : 0 }, true);
}
private void createNewCollection()
{
if (IsCreated.Value)
return;
if (string.IsNullOrEmpty(collectionName.Value))
return;
// Add the new collection and disable our placeholder. If all text is removed, the placeholder should not show back again.
collectionManager?.Collections.Add(collection);
textBox.PlaceholderText = string.Empty;
// When this item changes from placeholder to non-placeholder (via changing containers), its textbox will lose focus, so it needs to be re-focused.
Schedule(() => GetContainingInputManager().ChangeFocus(textBox));
IsCreated.Value = true;
}
}
private class ItemTextBox : OsuTextBox
{
protected override float LeftRightPadding => item_height / 2;
[BackgroundDependencyLoader]
private void load(OsuColour colours)
{
BackgroundUnfocused = colours.GreySeafoamDarker.Darken(0.5f);
BackgroundFocused = colours.GreySeafoam;
}
}
public class DeleteButton : CompositeDrawable
{
public readonly IBindable<bool> IsCreated = new Bindable<bool>();
public Func<Vector2, bool> IsTextBoxHovered;
[Resolved(CanBeNull = true)]
private DialogOverlay dialogOverlay { get; set; }
[Resolved(CanBeNull = true)]
private CollectionManager collectionManager { get; set; }
private readonly BeatmapCollection collection;
private Drawable fadeContainer;
private Drawable background;
public DeleteButton(BeatmapCollection collection)
{
this.collection = collection;
RelativeSizeAxes = Axes.Y;
Width = button_width + item_height / 2; // add corner radius to cover with fill
}
[BackgroundDependencyLoader]
private void load(OsuColour colours)
{
InternalChild = fadeContainer = new Container
{
RelativeSizeAxes = Axes.Both,
Alpha = 0.1f,
Children = new[]
{
background = new Box
{
RelativeSizeAxes = Axes.Both,
Colour = colours.Red
},
new SpriteIcon
{
Anchor = Anchor.CentreRight,
Origin = Anchor.Centre,
X = -button_width * 0.6f,
Size = new Vector2(10),
Icon = FontAwesome.Solid.Trash
}
}
};
}
protected override void LoadComplete()
{
base.LoadComplete();
IsCreated.BindValueChanged(created => Alpha = created.NewValue ? 1 : 0, true);
}
public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => base.ReceivePositionalInputAt(screenSpacePos) && !IsTextBoxHovered(screenSpacePos);
protected override bool OnHover(HoverEvent e)
{
fadeContainer.FadeTo(1f, 100, Easing.Out);
return false;
}
protected override void OnHoverLost(HoverLostEvent e)
{
fadeContainer.FadeTo(0.1f, 100);
}
protected override bool OnClick(ClickEvent e)
{
background.FlashColour(Color4.White, 150);
if (collection.Beatmaps.Count == 0)
deleteCollection();
else
dialogOverlay?.Push(new DeleteCollectionDialog(collection, deleteCollection));
return true;
}
private void deleteCollection() => collectionManager?.Collections.Remove(collection);
}
}
}