Support Math rendering1.2.0

1 files changed, 34 insertions, 0 deletions

diff --git a/Sources/NorgUI/Math/MathBlockView.swift b/Sources/NorgUI/Math/MathBlockView.swift
new file mode 100644
index 0000000..c29fdb6
--- /dev/null
+++ b/Sources/NorgUI/Math/MathBlockView.swift
@@ -0,0 +1,34 @@
+import SwiftUI
+
+/// Renders a `@math` block asynchronously with a fallback to `VerbatimBlock`.
+struct MathBlockView: View {
+  @Environment(\.norgTheme) private var theme
+
+  let latex: String
+
+  @State private var rendered: NorgMathImage?
+
+  var body: some View {
+    content
+      .task(id: renderKey) {
+        guard let renderer = theme.mathRenderer else { return }
+        rendered = await renderer.render(
+          latex: latex, mode: .block, fontSize: theme.mathFontSize, color: nil)
+      }
+  }
+
+  @ViewBuilder
+  private var content: some View {
+    if let rendered {
+      rendered.swiftUIImage
+        .frame(width: rendered.size.width, height: rendered.size.height, alignment: .leading)
+        .padding(theme.verbatimPadding)
+        .frame(maxWidth: .infinity, alignment: .leading)
+        .background(theme.codeBackground, in: RoundedRectangle(cornerRadius: 8))
+    } else {
+      VerbatimBlock(label: nil, content: latex)
+    }
+  }
+
+  private var renderKey: String { "\(latex)@\(theme.mathFontSize)" }
+}