mirror of https://github.com/ppy/osu
40 lines
1.2 KiB
C#
40 lines
1.2 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.Linq;
|
|
using osu.Framework.Extensions.IEnumerableExtensions;
|
|
using osu.Framework.Screens;
|
|
|
|
namespace osu.Game.Graphics.UserInterface
|
|
{
|
|
/// <summary>
|
|
/// A <see cref="BreadcrumbControl"/> which follows the active screen (and allows navigation) in a <see cref="Screen"/> stack.
|
|
/// </summary>
|
|
public class ScreenBreadcrumbControl : BreadcrumbControl<IScreen>
|
|
{
|
|
public ScreenBreadcrumbControl(ScreenStack stack)
|
|
{
|
|
stack.ScreenPushed += onPushed;
|
|
stack.ScreenExited += onExited;
|
|
|
|
onPushed(null, stack.CurrentScreen);
|
|
|
|
Current.ValueChanged += current => current.NewValue.MakeCurrent();
|
|
}
|
|
|
|
private void onPushed(IScreen lastScreen, IScreen newScreen)
|
|
{
|
|
AddItem(newScreen);
|
|
Current.Value = newScreen;
|
|
}
|
|
|
|
private void onExited(IScreen lastScreen, IScreen newScreen)
|
|
{
|
|
if (newScreen != null)
|
|
Current.Value = newScreen;
|
|
|
|
Items.ToList().SkipWhile(s => s != Current.Value).Skip(1).ForEach(RemoveItem);
|
|
}
|
|
}
|
|
}
|