Initial QOffice implementation

src/io/pdfExport.ts

@@ -0,0 +1,18 @@
+import { replaceFileExtension } from "./fileHelpers";
+
+export function isDesktopPdfExportAvailable() {
+  return Boolean(window.qoffice?.isDesktop && window.qoffice.exportPdf);
+}
+
+export async function exportPdfOrPrint(defaultFileName: string) {
+  if (isDesktopPdfExportAvailable()) {
+    await window.qoffice?.exportPdf?.(pdfFileName(defaultFileName));
+    return;
+  }
+
+  window.print();
+}
+
+export function pdfFileName(fileName: string) {
+  return replaceFileExtension(fileName || "QOffice", ".pdf");
+}