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osu-lazer/osu.Game/Overlays/Comments/CommentMarkdownContainer.cs
2023-11-15 19:50:32 -08:00

112 lines
4.2 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 Markdig.Syntax;
using Markdig.Syntax.Inlines;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Containers.Markdown;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Graphics.Textures;
using osu.Game.Graphics.Containers.Markdown;
using osuTK;
namespace osu.Game.Overlays.Comments
{
public partial class CommentMarkdownContainer : OsuMarkdownContainer
{
protected override OsuMarkdownContainerOptions Options => new OsuMarkdownContainerOptions
{
Autolinks = true
};
protected override MarkdownHeading CreateHeading(HeadingBlock headingBlock) => new CommentMarkdownHeading(headingBlock);
public override OsuMarkdownTextFlowContainer CreateTextFlow() => new CommentMarkdownTextFlowContainer();
private partial class CommentMarkdownHeading : OsuMarkdownHeading
{
public CommentMarkdownHeading(HeadingBlock headingBlock)
: base(headingBlock)
{
}
protected override float GetFontSizeByLevel(int level)
{
float defaultFontSize = base.GetFontSizeByLevel(6);
switch (level)
{
case 1:
return 1.2f * defaultFontSize;
case 2:
return 1.1f * defaultFontSize;
default:
return defaultFontSize;
}
}
}
private partial class CommentMarkdownTextFlowContainer : OsuMarkdownTextFlowContainer
{
protected override void AddImage(LinkInline linkInline) => AddDrawable(new CommentMarkdownImage(linkInline));
private partial class CommentMarkdownImage : OsuMarkdownImage
{
public CommentMarkdownImage(LinkInline linkInline)
: base(linkInline)
{
}
private DelayedLoadWrapper wrapper = null!;
protected override Drawable CreateContent(string url) => wrapper = new DelayedLoadWrapper(CreateImageContainer(url));
protected override ImageContainer CreateImageContainer(string url)
{
var container = new CommentImageContainer(url);
container.OnLoadComplete += d =>
{
// The size of DelayedLoadWrapper depends on AutoSizeAxes of it's content.
// But since it's set to None, we need to specify the size here manually.
wrapper.Size = container.Size;
d.FadeInFromZero(300, Easing.OutQuint);
};
return container;
}
private partial class CommentImageContainer : ImageContainer
{
// https://github.com/ppy/osu-web/blob/3bd0f406dc78d60b356d955cd4201f8c3e1cca09/resources/css/bem/osu-md.less#L36
// Web version defines max height in em units (6 em), which assuming default font size as 14 results in 84 px,
// which also seems to match observations upon inspecting the web element.
private const float max_height = 84f;
public CommentImageContainer(string url)
: base(url)
{
AutoSizeAxes = Axes.None;
}
protected override Sprite CreateImageSprite() => new Sprite
{
RelativeSizeAxes = Axes.Both
};
protected override Texture GetImageTexture(TextureStore textures, string url)
{
Texture t = base.GetImageTexture(textures, url);
if (t != null)
Size = t.Height > max_height ? new Vector2(max_height / t.Height * t.Width, max_height) : t.Size;
return t!;
}
}
}
}
}
}