Clean up RenderingBlockView.swift

GeminiRenderer/RenderingBlockView.swift

@@ -21,49 +21,73 @@ struct RenderingBlockView: View {
     var body: some View {
         switch block {
         case let .text(text):
+            self.text(text)
+        case let .link(url, text: linkText):
+            self.link(url, text: linkText)
+        case let .preformatted(text, alt: _):
+            preformatted(text)
+        case let .heading(text, level: level):
+            heading(text, level: level)
+        case let .unorderedListItem(text):
+            unorderedListItem(text)
+        case let .quote(text):
+            quote(text)
+        }
+    }
+    
+    private func text(_ text: String) -> some View {
+        Text(text)
+            .font(.documentBody)
+            .frame(maxWidth: .infinity, alignment: .leading)
+    }
+    
+    private func link(_ url: URL, text: String?) -> some View {
+        let text = text ?? url.absoluteString
+        return Button {
+            self.changeURL?(url)
+        } label: {
             Text(verbatim: text)
                 .font(.documentBody)
+                .foregroundColor(.blue)
+                .underline()
                 .frame(maxWidth: .infinity, alignment: .leading)
-        case let .link(url, text: linkText):
-            let text = linkText ?? url.absoluteString
-            Button {
-                self.changeURL?(url)
-            } label: {
-                Text(verbatim: text)
-                    .font(.documentBody)
-                    .foregroundColor(.blue)
-                    .underline()
-                    .frame(maxWidth: .infinity, alignment: .leading)
-            }.buttonStyle(LinkButtonStyle())
-        case let .preformatted(text, alt: _):
-            ScrollView(.horizontal) {
-                Text(verbatim: text)
-                    .font(.documentBodyPreformatted)
-                    .frame(maxWidth: .infinity, alignment: .leading)
-            }
-        case let .heading(text, level: level):
+        }.buttonStyle(LinkButtonStyle())
+    }
+    
+    private func preformatted(_ text: String) -> some View {
+        ScrollView(.horizontal) {
             Text(verbatim: text)
-                .font(level.font)
+                .font(.documentBodyPreformatted)
                 .frame(maxWidth: .infinity, alignment: .leading)
-        case let .unorderedListItem(text):
-            // todo: should this be .firstTextBaseline?
-            HStack(alignment: .top, spacing: 4) {
-                Text(verbatim: "\u{2022}")
-                Text(verbatim: text)
-                    .font(.documentBody)
-                Spacer()
-            }.frame(maxWidth: .infinity, alignment: .leading)
-        case let .quote(text):
-            HStack(spacing: 4) {
-                Color.gray
-                    .frame(width: 4)
-                Text(verbatim: text)
-                    .font(Font.documentBody.italic())
-                    .foregroundColor(.gray)
-                Spacer()
-            }.frame(maxWidth: .infinity, alignment: .leading)
         }
     }
+    
+    private func heading(_ text: String, level: Document.HeadingLevel) -> some View {
+        Text(verbatim: text)
+            .font(level.font)
+            .frame(maxWidth: .infinity, alignment: .leading)
+    }
+    
+    private func unorderedListItem(_ text: String) -> some View {
+        // todo: should this be .firstTextBaseline?
+        HStack(alignment: .top, spacing: 4) {
+            Text(verbatim: "\u{2022}")
+            Text(verbatim: text)
+                .font(.documentBody)
+            Spacer()
+        }.frame(maxWidth: .infinity, alignment: .leading)
+    }
+    
+    private func quote(_ text: String) -> some View {
+        HStack(spacing: 4) {
+            Color.gray
+                .frame(width: 4)
+            Text(verbatim: text)
+                .font(Font.documentBody.italic())
+                .foregroundColor(.gray)
+            Spacer()
+        }.frame(maxWidth: .infinity, alignment: .leading)
+    }
 }
 
 struct RenderingBlockView_Previews: PreviewProvider {