fix(UX): warning when printing unsaved documents (#26229)

frappe/public/js/frappe/form/form.js

@@ -1298,6 +1298,15 @@ frappe.ui.form.Form = class FrappeForm {
 	// ACTIONS
 
 	print_doc() {
+		if (this.is_dirty()) {
+			frappe.toast({
+				message: __(
+					"This document has unsaved changes which might not appear in final PDF. <br> Consider saving the document before printing."
+				),
+				indicator: "yellow",
+			});
+		}
+
 		frappe.route_options = {
 			frm: this,
 		};