#434

frontend/src/lib/countsClipboard.ts

@@ -2,7 +2,7 @@ export type CountsClipboard = { text: string; html: string }
 export type CountsClipboardColumn = { label: string; children?: CountsClipboardColumn[] }
 export type CountsClipboardCell = string | CountsClipboardTable
 export type CountsClipboardTable = {
-    columns: CountsClipboardColumn[]; rows: CountsClipboardCell[][] }
+    columns: CountsClipboardColumn[]; rows: CountsClipboardCell[][]; headerRows?: string[][] }
 
 
 const escapeHTML = (value: string): string => value.replace (/[&<>"']/g, character =>
@@ -59,7 +59,8 @@ export const countsClipboard = (
     source: string[][] | CountsClipboardTable,
     headers = false,
 ): CountsClipboard => {
-  const headings = !Array.isArray (source) && headers ? headerRows (source.columns) : []
+  const headings = (!Array.isArray (source) && headers)
+      ? source.headerRows ?? headerRows (source.columns) : []
   const rows = Array.isArray (source) ? source : [...headings, ...dataRows (source)]
   const headingCount = Array.isArray (source) ? (headers ? 1 : 0) : headings.length
   // Excel accepts quoted TSV fields only when delimiters or quotes require them.