oliverbooth.dev/OliverBooth/Markdown/Renderers/JsonConverters/HeadingBlockConverter.cs

54 lines
1.6 KiB
C#
Raw Normal View History

using System.Text.Json;
using System.Text.Json.Nodes;
using System.Text.Json.Serialization;
using Markdig.Helpers;
using Markdig.Syntax;
using Markdig.Syntax.Inlines;
namespace OliverBooth.Markdown.Renderers.JsonConverters;
public sealed class HeadingBlockConverter : JsonConverter<HeadingBlock>
{
/// <inheritdoc />
public override HeadingBlock? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
{
var node = JsonNode.Parse(reader.ValueSpan);
if (node is not JsonObject jsonObject)
{
return null;
}
return new HeadingBlock(null!)
{
Level = jsonObject["level"]?.GetValue<int>() ?? 1,
Lines = new StringLineGroup(jsonObject["text"]?.GetValue<string>() ?? string.Empty)
};
}
/// <inheritdoc />
public override void Write(Utf8JsonWriter writer, HeadingBlock value, JsonSerializerOptions options)
{
if (value.Inline is not { } containerInline)
{
return;
}
writer.WriteStartObject();
writer.WriteString("type", "header");
writer.WriteNumber("level", value.Level);
writer.WritePropertyName("text");
foreach (Inline inline in containerInline)
{
if (inline is LiteralInline literal)
{
var converter = (JsonConverter<LiteralInline>)options.GetConverter(typeof(LiteralInline));
writer.WriteStringValue(literal.Content.Text);
converter.Write(writer, literal, options);
}
}
writer.WriteEndObject();
}
}