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Code Issues Releases Wiki Activity

Add ScreenBreadcrumbControl.

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This commit is contained in:
DrabWeb 2018-05-10 21:35:26 -03:00
parent 0afe33d32f
commit b9adeeb063
2 changed files with 186 additions and 0 deletions
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108
osu.Game.Tests/Visual/TestCaseScreenBreadcrumbs.cs Normal file
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// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using NUnit.Framework;
using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Graphics;
using osu.Game.Graphics.Sprites;
using osu.Game.Graphics.UserInterface;
using osu.Game.Screens;
using OpenTK;
namespace osu.Game.Tests.Visual
{
[TestFixture]
public class TestCaseScreenBreadcrumbs : OsuTestCase
{
private readonly ScreenBreadcrumbControl<TestScreen> breadcrumbs;
public TestCaseScreenBreadcrumbs()
{
TestScreen startScreen;
OsuSpriteText titleText;
Children = new Drawable[]
{
new FillFlowContainer
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Direction = FillDirection.Vertical,
Spacing = new Vector2(10),
Children = new Drawable[]
{
breadcrumbs = new ScreenBreadcrumbControl<TestScreen>
{
RelativeSizeAxes = Axes.X,
},
titleText = new OsuSpriteText(),
},
},
startScreen = new TestScreenOne(),
};
breadcrumbs.OnScreenChanged += s => titleText.Text = $"Changed to {s.ToString()}";
breadcrumbs.CurrentScreen = startScreen;
}
[BackgroundDependencyLoader]
private void load(OsuColour colours)
{
breadcrumbs.StripColour = colours.Blue;
}
private abstract class TestScreen : OsuScreen
{
protected abstract string Title { get; }
protected abstract string NextTitle { get; }
protected abstract TestScreen CreateNextScreen();
public override string ToString() => Title;
protected TestScreen()
{
Child = new FillFlowContainer
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
AutoSizeAxes = Axes.Both,
Direction = FillDirection.Vertical,
Spacing = new Vector2(10),
Children = new Drawable[]
{
new OsuSpriteText
{
Anchor = Anchor.TopCentre,
Origin = Anchor.TopCentre,
Text = Title,
},
new TriangleButton
{
Anchor = Anchor.TopCentre,
Origin = Anchor.TopCentre,
Width = 100,
Text = $"Push {NextTitle}",
Action = () => Push(CreateNextScreen()),
},
},
};
}
}
private class TestScreenOne : TestScreen
{
protected override string Title => @"Screen One";
protected override string NextTitle => @"Two";
protected override TestScreen CreateNextScreen() => new TestScreenTwo();
}
private class TestScreenTwo : TestScreen
{
protected override string Title => @"Screen Two";
protected override string NextTitle => @"One";
protected override TestScreen CreateNextScreen() => new TestScreenOne();
}
}
}

78
osu.Game/Graphics/UserInterface/ScreenBreadcrumbControl.cs Normal file
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// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using System;
using System.Linq;
using osu.Framework.Extensions.IEnumerableExtensions;
using osu.Framework.Screens;
namespace osu.Game.Graphics.UserInterface
{
public class ScreenBreadcrumbControl : ScreenBreadcrumbControl<Screen>
{
}
public class ScreenBreadcrumbControl<T> : BreadcrumbControl<T> where T : Screen
{
private T currentScreen;
public T CurrentScreen
{
get { return currentScreen; }
set
{
if (value == currentScreen) return;
if (CurrentScreen != null)
{
CurrentScreen.Exited -= onExited;
CurrentScreen.ModePushed -= onPushed;
}
else
{
// this is the first screen in the stack, so call the initial onPushed
currentScreen = value;
onPushed(CurrentScreen);
}
currentScreen = value;
if (CurrentScreen != null)
{
CurrentScreen.Exited += onExited;
CurrentScreen.ModePushed += onPushed;
Current.Value = CurrentScreen;
OnScreenChanged?.Invoke(CurrentScreen);
}
}
}
public event Action<T> OnScreenChanged;
public ScreenBreadcrumbControl()
{
Current.ValueChanged += s =>
{
if (s != CurrentScreen)
{
CurrentScreen = s;
s.MakeCurrent();
}
};
}
private void onExited(Screen screen)
{
CurrentScreen = screen as T;
}
private void onPushed(Screen screen)
{
var newScreen = screen as T;
Items.ToList().SkipWhile(i => i != Current.Value).Skip(1).ForEach(RemoveItem);
AddItem(newScreen);
CurrentScreen = newScreen;
}
}
}