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[frontend/mfm] Display a fallback node that preserves its children for unsupported MFM nodes

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pancakes 2025-03-28 19:20:07 +10:00
parent b79de70345
commit 35a4c63d4f
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2 changed files with 22 additions and 27 deletions
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7
Iceshrimp.Frontend/Components/MfmText.razor.css
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@ -103,6 +103,13 @@
}
}
::deep {
.fallback {
text-decoration: 2px dotted underline red;
cursor: not-allowed;
}
}
::deep {
.plain {
text-decoration: none;

38
Iceshrimp.Frontend/Core/Miscellaneous/RenderMfm.cs
View file

@ -35,18 +35,9 @@ public static partial class MfmRenderer
el.SetAttribute("mfm", "mfm");
el.ClassName = "mfm";
foreach (var node in nodes)
{
try
{
el.AppendNodes(RenderNode(node, emoji, accountDomain, simple));
}
catch (NotImplementedException e)
{
var fallback = CreateElement("span");
fallback.TextContent = $"[Node type <{e.Message}> not implemented]";
el.AppendNodes(fallback);
}
}
return el;
}
@ -61,9 +52,8 @@ public static partial class MfmRenderer
{
MfmCenterNode _ => MfmCenterNode(),
MfmCodeBlockNode mfmCodeBlockNode => MfmCodeBlockNode(mfmCodeBlockNode),
MfmMathBlockNode mfmMathBlockNode => throw new NotImplementedException($"{mfmMathBlockNode.GetType()}"),
// MfmMathBlockNode mfmMathBlockNode => TODO: Implement math block node
MfmQuoteNode mfmQuoteNode => MfmQuoteNode(mfmQuoteNode),
IMfmBlockNode mfmBlockNode => throw new NotImplementedException($"{mfmBlockNode.GetType()}"),
MfmBoldNode mfmBoldNode => MfmBoldNode(mfmBoldNode),
MfmEmojiCodeNode mfmEmojiCodeNode => MfmEmojiCodeNode(mfmEmojiCodeNode, emoji, simple),
MfmFnNode mfmFnNode => MfmFnNode(mfmFnNode),
@ -71,38 +61,37 @@ public static partial class MfmRenderer
MfmInlineCodeNode mfmInlineCodeNode => MfmInlineCodeNode(mfmInlineCodeNode),
MfmItalicNode mfmItalicNode => MfmItalicNode(mfmItalicNode),
MfmLinkNode mfmLinkNode => MfmLinkNode(mfmLinkNode),
MfmInlineMathNode mfmInlineMathNode => throw new NotImplementedException($"{mfmInlineMathNode.GetType()}"),
// MfmInlineMathNode mfmInlineMathNode => TODO: Implement inline math
MfmMentionNode mfmMentionNode => MfmMentionNode(mfmMentionNode, accountDomain),
MfmPlainNode mfmPlainNode => MfmPlainNode(mfmPlainNode),
MfmSmallNode _ => MfmSmallNode(),
MfmStrikeNode mfmStrikeNode => MfmStrikeNode(mfmStrikeNode),
MfmTextNode mfmTextNode => MfmTextNode(mfmTextNode),
MfmUrlNode mfmUrlNode => MfmUrlNode(mfmUrlNode),
IMfmInlineNode mfmInlineNode => throw new NotImplementedException($"{mfmInlineNode.GetType()}"),
_ => throw new ArgumentOutOfRangeException(nameof(node))
_ => MfmFallbackNode(nameof(node))
};
// @formatter:on
if (node.Children.Length > 0 && rendered.ChildNodes.Length == 0)
{
foreach (var childNode in node.Children)
{
try
{
rendered.AppendNodes(RenderNode(childNode, emoji, accountDomain, simple));
}
catch (NotImplementedException e)
{
var fallback = CreateElement("span");
fallback.TextContent = $"[Node type <{e.Message}> not implemented]";
rendered.AppendNodes(fallback);
}
}
}
return rendered;
}
private static INode MfmFallbackNode(string nodeName)
{
var el = CreateElement("span");
el.ClassName = "fallback";
el.SetAttribute("title", $"Node type <{nodeName}> not implemented");
return el;
}
private static INode MfmPlainNode(MfmPlainNode _)
{
var el = CreateElement("span");
@ -270,7 +259,6 @@ public static partial class MfmRenderer
"shake" => MfmFnAnimation(node.Name, args, "0.5s"),
"twitch" => MfmFnAnimation(node.Name, args, "0.5s"),
"rainbow" => MfmFnAnimation(node.Name, args),
"sparkle" => throw new NotImplementedException($"{node.Name}"),
"rotate" => MfmFnRotate(args),
"fade" => MfmFnFade(args),
"crop" => MfmFnCrop(args),
@ -283,7 +271,7 @@ public static partial class MfmRenderer
"unixtime" => MfmFnUnixtime(node),
"center" => MfmCenterNode(),
"small" => MfmSmallNode(),
_ => throw new NotImplementedException($"{node.Name}")
_ => MfmFallbackNode($"{node.GetType()}+{node.Name}")
};
}