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osu-lazer/osu.Game/Overlays/News/NewsHeader.cs
2020-01-03 15:01:42 +09:00

109 lines
3.1 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 osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Graphics.Textures;
using osu.Game.Graphics;
using osu.Game.Graphics.UserInterface;
using System;
namespace osu.Game.Overlays.News
{
public class NewsHeader : BreadcrumbControlOverlayHeader
{
private const string front_page_string = "frontpage";
private NewsHeaderTitle title;
public readonly Bindable<string> Current = new Bindable<string>(null);
public Action ShowFrontPage;
public NewsHeader()
{
BreadcrumbControl.AddItem(front_page_string);
BreadcrumbControl.Current.ValueChanged += e =>
{
if (e.NewValue == front_page_string)
ShowFrontPage?.Invoke();
};
Current.ValueChanged += showPost;
}
[BackgroundDependencyLoader]
private void load(OsuColour colours)
{
BreadcrumbControl.AccentColour = colours.Violet;
TitleBackgroundColour = colours.GreyVioletDarker;
ControlBackgroundColour = colours.GreyVioletDark;
}
private void showPost(ValueChangedEvent<string> e)
{
if (e.OldValue != null)
BreadcrumbControl.RemoveItem(e.OldValue);
if (e.NewValue != null)
{
BreadcrumbControl.AddItem(e.NewValue);
BreadcrumbControl.Current.Value = e.NewValue;
title.IsReadingPost = true;
}
else
{
BreadcrumbControl.Current.Value = front_page_string;
title.IsReadingPost = false;
}
}
protected override Drawable CreateBackground() => new NewsHeaderBackground();
protected override ScreenTitle CreateTitle() => title = new NewsHeaderTitle();
private class NewsHeaderBackground : Sprite
{
public NewsHeaderBackground()
{
RelativeSizeAxes = Axes.Both;
FillMode = FillMode.Fill;
}
[BackgroundDependencyLoader]
private void load(TextureStore textures)
{
Texture = textures.Get(@"Headers/news");
}
}
private class NewsHeaderTitle : ScreenTitle
{
private const string post_string = "post";
public bool IsReadingPost
{
set => Section = value ? post_string : front_page_string;
}
public NewsHeaderTitle()
{
Title = "news";
IsReadingPost = false;
}
protected override Drawable CreateIcon() => new ScreenTitleTextureIcon(@"Icons/news");
[BackgroundDependencyLoader]
private void load(OsuColour colours)
{
AccentColour = colours.Violet;
}
}
}
}