osu/osu.Game/Collections/DrawableCollectionListItem.cs

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// 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;
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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
{
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/// <summary>
/// Visualises a <see cref="BeatmapCollection"/> inside a <see cref="DrawableCollectionList"/>.
/// </summary>
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public class DrawableCollectionListItem : OsuRearrangeableListItem<BeatmapCollection>
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{
private const float item_height = 35;
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private const float button_width = item_height * 0.75f;
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/// <summary>
/// Whether the <see cref="BeatmapCollection"/> currently exists inside the <see cref="CollectionManager"/>.
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/// </summary>
public IBindable<bool> IsCreated => isCreated;
private readonly Bindable<bool> isCreated = new Bindable<bool>();
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/// <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)
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: base(item)
{
this.isCreated.Value = isCreated;
ShowDragHandle.BindTo(this.isCreated);
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}
protected override Drawable CreateContent() => new ItemContent(Model)
{
IsCreated = { BindTarget = isCreated }
};
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/// <summary>
/// The main content of the <see cref="DrawableCollectionListItem"/>.
/// </summary>
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private class ItemContent : CircularContainer
{
public readonly Bindable<bool> IsCreated = new Bindable<bool>();
private readonly IBindable<string> collectionName;
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private readonly BeatmapCollection collection;
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[Resolved(CanBeNull = true)]
private CollectionManager collectionManager { get; set; }
private Container textBoxPaddingContainer;
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private ItemTextBox textBox;
public ItemContent(BeatmapCollection collection)
{
this.collection = collection;
RelativeSizeAxes = Axes.X;
Height = item_height;
Masking = true;
collectionName = collection.Name.GetBoundCopy();
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}
[BackgroundDependencyLoader]
private void load(OsuColour colours)
{
Children = new Drawable[]
{
new DeleteButton(collection)
{
Anchor = Anchor.CentreRight,
Origin = Anchor.CentreRight,
IsCreated = { BindTarget = IsCreated },
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IsTextBoxHovered = v => textBox.ReceivePositionalInputAt(v)
},
textBoxPaddingContainer = new Container
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{
RelativeSizeAxes = Axes.Both,
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Padding = new MarginPadding { Right = button_width },
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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"
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},
}
},
};
}
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.
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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;
}
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}
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;
}
}
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public class DeleteButton : CompositeDrawable
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{
public readonly IBindable<bool> IsCreated = new Bindable<bool>();
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public Func<Vector2, bool> IsTextBoxHovered;
[Resolved(CanBeNull = true)]
private DialogOverlay dialogOverlay { get; set; }
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[Resolved(CanBeNull = true)]
private CollectionManager collectionManager { get; set; }
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private readonly BeatmapCollection collection;
private Drawable fadeContainer;
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private Drawable background;
public DeleteButton(BeatmapCollection collection)
{
this.collection = collection;
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RelativeSizeAxes = Axes.Y;
Width = button_width + item_height / 2; // add corner radius to cover with fill
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}
[BackgroundDependencyLoader]
private void load(OsuColour colours)
{
InternalChild = fadeContainer = new Container
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{
RelativeSizeAxes = Axes.Both,
Alpha = 0.1f,
Children = new[]
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{
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
}
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}
};
}
protected override void LoadComplete()
{
base.LoadComplete();
IsCreated.BindValueChanged(created => Alpha = created.NewValue ? 1 : 0, true);
}
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public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => base.ReceivePositionalInputAt(screenSpacePos) && !IsTextBoxHovered(screenSpacePos);
protected override bool OnHover(HoverEvent e)
{
fadeContainer.FadeTo(1f, 100, Easing.Out);
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return false;
}
protected override void OnHoverLost(HoverLostEvent e)
{
fadeContainer.FadeTo(0.1f, 100);
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}
protected override bool OnClick(ClickEvent e)
{
background.FlashColour(Color4.White, 150);
if (collection.Beatmaps.Count == 0)
deleteCollection();
else
dialogOverlay?.Push(new DeleteCollectionDialog(collection, deleteCollection));
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return true;
}
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private void deleteCollection() => collectionManager?.Collections.Remove(collection);
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}
}
}