@sap/generator-fiori/generators/fe-fpm-writer/templates/common/EventHandler.ts

Create an SAPUI5 application using SAP Fiori elements or a freestyle approach

import ExtensionAPI from 'sap/fe/core/ExtensionAPI';
<%
const importedTypes = new Set();
parameters.forEach(param => {
  if (param.importType && !importedTypes.has(param.importType)) {
    importedTypes.add(param.importType);
-%>
import <%- param.importType %> from '<%- param.importSource %>';
<% 
  }
}); -%>
import MessageToast from 'sap/m/MessageToast';

/**
 * Generated event handler.
 *
 * @param this reference to the 'this' that the event handler is bound to.
<% parameters.forEach(function(param) { -%>
 * @param <%- param.name %> <%- param.description %>
<% }) -%>
 */
export function <%- eventHandlerFnName %>(this: ExtensionAPI, <%=
    parameters.map(function(param) {
        return param.name + ": " + (param.paramType ?? param.importType);
    }).join(", ")
%>) {
    MessageToast.show("Custom handler invoked.");
}