Clean up RenderingBlockView.swift

GeminiRenderer/RenderingBlockView.swift

@@ -21,12 +21,29 @@ struct RenderingBlockView: View {
     var body: some View {
         switch block {
         case let .text(text):
-            Text(verbatim: 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)
-        case let .link(url, text: linkText):
+    }
-            let text = linkText ?? url.absoluteString
+    
-            Button {
+    private func link(_ url: URL, text: String?) -> some View {
+        let text = text ?? url.absoluteString
+        return Button {
             self.changeURL?(url)
         } label: {
             Text(verbatim: text)
@@ -35,17 +52,23 @@ struct RenderingBlockView: View {
                 .underline()
                 .frame(maxWidth: .infinity, alignment: .leading)
         }.buttonStyle(LinkButtonStyle())
-        case let .preformatted(text, alt: _):
+    }
+    
+    private func preformatted(_ text: String) -> some View {
         ScrollView(.horizontal) {
             Text(verbatim: text)
                 .font(.documentBodyPreformatted)
                 .frame(maxWidth: .infinity, alignment: .leading)
         }
-        case let .heading(text, level: level):
+    }
+    
+    private func heading(_ text: String, level: Document.HeadingLevel) -> some View {
         Text(verbatim: text)
             .font(level.font)
             .frame(maxWidth: .infinity, alignment: .leading)
-        case let .unorderedListItem(text):
+    }
+    
+    private func unorderedListItem(_ text: String) -> some View {
         // todo: should this be .firstTextBaseline?
         HStack(alignment: .top, spacing: 4) {
             Text(verbatim: "\u{2022}")
@@ -53,7 +76,9 @@ struct RenderingBlockView: View {
                 .font(.documentBody)
             Spacer()
         }.frame(maxWidth: .infinity, alignment: .leading)
-        case let .quote(text):
+    }
+    
+    private func quote(_ text: String) -> some View {
         HStack(spacing: 4) {
             Color.gray
                 .frame(width: 4)
@@ -63,7 +88,6 @@ struct RenderingBlockView: View {
             Spacer()
         }.frame(maxWidth: .infinity, alignment: .leading)
     }
-    }
 }
 
 struct RenderingBlockView_Previews: PreviewProvider {