// 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.Graphics; using osu.Framework.Graphics.Containers; using osu.Framework.Input.Bindings; using osu.Game.Input.Bindings; namespace osu.Game.Graphics.UserInterface { public class BackButton : VisibilityContainer { public Action Action; private readonly TwoLayerButton button; public BackButton(Receptor receptor = null) { Size = TwoLayerButton.SIZE_EXTENDED; Child = button = new TwoLayerButton { Anchor = Anchor.TopLeft, Origin = Anchor.TopLeft, Text = @"back", Icon = OsuIcon.LeftCircle, Action = () => Action?.Invoke() }; if (receptor == null) { // if a receptor wasn't provided, create our own locally. Add(receptor = new Receptor()); } receptor.OnBackPressed = () => button.Click(); } [BackgroundDependencyLoader] private void load(OsuColour colours) { button.BackgroundColour = colours.Pink; button.HoverColour = colours.PinkDark; } protected override void PopIn() { button.MoveToX(0, 400, Easing.OutQuint); button.FadeIn(150, Easing.OutQuint); } protected override void PopOut() { button.MoveToX(-TwoLayerButton.SIZE_EXTENDED.X / 2, 400, Easing.OutQuint); button.FadeOut(400, Easing.OutQuint); } public class Receptor : Drawable, IKeyBindingHandler<GlobalAction> { public Action OnBackPressed; public bool OnPressed(GlobalAction action) { switch (action) { case GlobalAction.Back: OnBackPressed?.Invoke(); return true; } return false; } public void OnReleased(GlobalAction action) { } } } }