feat: add confirmation modal after form submission

- Create RequestSubmittedModal component matching design specs:
  - 448x170px, black background, border-radius 6px
  - Close button (X) at top right with 0.7 opacity
  - Title: 'Request submitted' (18px semibold)
  - Description text (14px, #8C8C8C)
  - Done button to dismiss and navigate to homepage
- Update InformationRequestForm to show modal on successful submit
- Navigate to '/' (homepage) when modal is closed
- Add i18n translations for modal text (15 languages):
  - ENTERPRISE$REQUEST_SUBMITTED_TITLE
  - ENTERPRISE$REQUEST_SUBMITTED_DESCRIPTION
  - ENTERPRISE$DONE_BUTTON
  - MODAL$CLOSE_BUTTON_LABEL
- Add unit tests for RequestSubmittedModal (10 tests)
- Update form tests for modal behavior (22 tests)

Co-authored-by: openhands <openhands@all-hands.dev>

frontend/__tests__/components/features/onboarding/information-request-form.test.tsx

@@ -180,17 +180,18 @@ describe("InformationRequestForm", () => {
       expect(messageInput).toHaveAttribute("aria-invalid", "false");
     });
 
-    it("should not navigate when form is submitted with empty fields", async () => {
+    it("should not show modal when form is submitted with empty fields", async () => {
       const user = userEvent.setup();
       renderWithRouter();
 
       const submitButton = screen.getByRole("button", { name: "ENTERPRISE$FORM_SUBMIT" });
       await user.click(submitButton);
 
+      expect(screen.queryByTestId("request-submitted-modal")).not.toBeInTheDocument();
       expect(mockNavigate).not.toHaveBeenCalled();
     });
 
-    it("should navigate when form is submitted with all fields filled", async () => {
+    it("should show modal when form is submitted with all fields filled", async () => {
       const user = userEvent.setup();
       renderWithRouter();
 
@@ -202,6 +203,26 @@ describe("InformationRequestForm", () => {
       const submitButton = screen.getByRole("button", { name: "ENTERPRISE$FORM_SUBMIT" });
       await user.click(submitButton);
 
+      expect(screen.getByTestId("request-submitted-modal")).toBeInTheDocument();
+    });
+
+    it("should navigate to homepage when modal Done button is clicked", async () => {
+      const user = userEvent.setup();
+      renderWithRouter();
+
+      // Fill form and submit
+      await user.type(screen.getByTestId("form-input-name"), "John Doe");
+      await user.type(screen.getByTestId("form-input-company"), "Acme Inc");
+      await user.type(screen.getByTestId("form-input-email"), "john@example.com");
+      await user.type(screen.getByTestId("form-input-message"), "Hello world");
+
+      const submitButton = screen.getByRole("button", { name: "ENTERPRISE$FORM_SUBMIT" });
+      await user.click(submitButton);
+
+      // Click Done on modal
+      const doneButton = screen.getByRole("button", { name: "ENTERPRISE$DONE_BUTTON" });
+      await user.click(doneButton);
+
       expect(mockNavigate).toHaveBeenCalledWith("/");
     });
 

frontend/__tests__/components/features/onboarding/request-submitted-modal.test.tsx

@@ -0,0 +1,113 @@
+import { render, screen } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { describe, expect, it, vi } from "vitest";
+import { RequestSubmittedModal } from "#/components/features/onboarding/request-submitted-modal";
+
+describe("RequestSubmittedModal", () => {
+  const defaultProps = {
+    onClose: vi.fn(),
+  };
+
+  it("should render the modal", () => {
+    render(<RequestSubmittedModal {...defaultProps} />);
+
+    expect(screen.getByTestId("request-submitted-modal")).toBeInTheDocument();
+  });
+
+  it("should render the title", () => {
+    render(<RequestSubmittedModal {...defaultProps} />);
+
+    expect(
+      screen.getByText("ENTERPRISE$REQUEST_SUBMITTED_TITLE"),
+    ).toBeInTheDocument();
+  });
+
+  it("should render the description", () => {
+    render(<RequestSubmittedModal {...defaultProps} />);
+
+    expect(
+      screen.getByText("ENTERPRISE$REQUEST_SUBMITTED_DESCRIPTION"),
+    ).toBeInTheDocument();
+  });
+
+  it("should render the Done button", () => {
+    render(<RequestSubmittedModal {...defaultProps} />);
+
+    expect(
+      screen.getByRole("button", { name: "ENTERPRISE$DONE_BUTTON" }),
+    ).toBeInTheDocument();
+  });
+
+  it("should render the close button", () => {
+    render(<RequestSubmittedModal {...defaultProps} />);
+
+    expect(
+      screen.getByRole("button", { name: "MODAL$CLOSE_BUTTON_LABEL" }),
+    ).toBeInTheDocument();
+  });
+
+  it("should call onClose when Done button is clicked", async () => {
+    const mockOnClose = vi.fn();
+    const user = userEvent.setup();
+
+    render(<RequestSubmittedModal onClose={mockOnClose} />);
+
+    const doneButton = screen.getByRole("button", {
+      name: "ENTERPRISE$DONE_BUTTON",
+    });
+    await user.click(doneButton);
+
+    expect(mockOnClose).toHaveBeenCalledTimes(1);
+  });
+
+  it("should call onClose when close button is clicked", async () => {
+    const mockOnClose = vi.fn();
+    const user = userEvent.setup();
+
+    render(<RequestSubmittedModal onClose={mockOnClose} />);
+
+    const closeButton = screen.getByRole("button", {
+      name: "MODAL$CLOSE_BUTTON_LABEL",
+    });
+    await user.click(closeButton);
+
+    expect(mockOnClose).toHaveBeenCalledTimes(1);
+  });
+
+  it("should call onClose when Escape key is pressed", async () => {
+    const mockOnClose = vi.fn();
+    const user = userEvent.setup();
+
+    render(<RequestSubmittedModal onClose={mockOnClose} />);
+
+    await user.keyboard("{Escape}");
+
+    expect(mockOnClose).toHaveBeenCalledTimes(1);
+  });
+
+  it("should call onClose when backdrop is clicked", async () => {
+    const mockOnClose = vi.fn();
+    const user = userEvent.setup();
+
+    render(<RequestSubmittedModal onClose={mockOnClose} />);
+
+    // Click on the backdrop (the semi-transparent overlay)
+    const backdrop = screen.getByRole("dialog").querySelector(".bg-black");
+    if (backdrop) {
+      await user.click(backdrop);
+    }
+
+    expect(mockOnClose).toHaveBeenCalledTimes(1);
+  });
+
+  it("should have proper accessibility attributes", () => {
+    render(<RequestSubmittedModal {...defaultProps} />);
+
+    const dialog = screen.getByRole("dialog");
+    expect(dialog).toHaveAttribute("aria-modal", "true");
+    expect(dialog).toHaveAttribute(
+      "aria-label",
+      "ENTERPRISE$REQUEST_SUBMITTED_TITLE",
+    );
+  });
+});

frontend/src/components/features/onboarding/information-request-form.tsx

@@ -5,6 +5,7 @@ import { I18nKey } from "#/i18n/declaration";
 import { Card } from "#/ui/card";
 import { Text } from "#/ui/typography";
 import { FormInput } from "./form-input";
+import { RequestSubmittedModal } from "./request-submitted-modal";
 import OpenHandsLogoWhite from "#/assets/branding/openhands-logo-white.svg?react";
 import CloudIcon from "#/icons/cloud.svg?react";
 import StackedIcon from "#/icons/stacked.svg?react";
@@ -29,6 +30,7 @@ export function InformationRequestForm({
     message: "",
   });
   const [hasAttemptedSubmit, setHasAttemptedSubmit] = useState(false);
+  const [showModal, setShowModal] = useState(false);
 
   const handleSubmit = (e: React.FormEvent) => {
     e.preventDefault();
@@ -45,7 +47,12 @@ export function InformationRequestForm({
       return;
     }
 
-    // TODO: Implement form submission
+    // TODO: Implement actual form submission API call
+    setShowModal(true);
+  };
+
+  const handleModalClose = () => {
+    setShowModal(false);
     navigate("/");
   };
 
@@ -181,6 +188,8 @@ export function InformationRequestForm({
           <Text className="text-[#8C8C8C]">{cardDescription}</Text>
         </Card>
       </div>
+
+      {showModal && <RequestSubmittedModal onClose={handleModalClose} />}
     </div>
   );
 }

frontend/src/components/features/onboarding/request-submitted-modal.tsx

@@ -0,0 +1,75 @@
+import { useTranslation } from "react-i18next";
+import { I18nKey } from "#/i18n/declaration";
+import { ModalBackdrop } from "#/components/shared/modals/modal-backdrop";
+
+interface RequestSubmittedModalProps {
+  onClose: () => void;
+}
+
+export function RequestSubmittedModal({ onClose }: RequestSubmittedModalProps) {
+  const { t } = useTranslation();
+
+  return (
+    <ModalBackdrop
+      onClose={onClose}
+      aria-label={t(I18nKey.ENTERPRISE$REQUEST_SUBMITTED_TITLE)}
+    >
+      <div
+        data-testid="request-submitted-modal"
+        className="w-[448px] bg-black rounded-md border border-[#242424] border-t-[#242424]"
+        style={{
+          boxShadow:
+            "0px 4px 6px -4px rgba(0, 0, 0, 0.1), 0px 10px 15px -3px rgba(0, 0, 0, 0.1)",
+        }}
+      >
+        {/* Header with close button */}
+        <div className="relative p-6 pb-0">
+          <button
+            type="button"
+            onClick={onClose}
+            aria-label={t(I18nKey.MODAL$CLOSE_BUTTON_LABEL)}
+            className="absolute top-[17px] right-[17px] w-4 h-4 flex items-center justify-center opacity-70 hover:opacity-100 transition-opacity rounded-sm"
+          >
+            <svg
+              width="16"
+              height="16"
+              viewBox="0 0 16 16"
+              fill="none"
+              xmlns="http://www.w3.org/2000/svg"
+            >
+              <path
+                d="M12 4L4 12M4 4L12 12"
+                stroke="currentColor"
+                strokeWidth="1.5"
+                strokeLinecap="round"
+                strokeLinejoin="round"
+              />
+            </svg>
+          </button>
+
+          {/* Title and description */}
+          <div className="flex flex-col gap-1.5 pr-8">
+            <h2 className="text-lg font-semibold text-white leading-[18px] tracking-[-0.45px]">
+              {t(I18nKey.ENTERPRISE$REQUEST_SUBMITTED_TITLE)}
+            </h2>
+            <p className="text-sm text-[#8C8C8C] leading-5">
+              {t(I18nKey.ENTERPRISE$REQUEST_SUBMITTED_DESCRIPTION)}
+            </p>
+          </div>
+        </div>
+
+        {/* Footer with Done button */}
+        <div className="p-6 pt-4 flex justify-end">
+          <button
+            type="button"
+            onClick={onClose}
+            aria-label={t(I18nKey.ENTERPRISE$DONE_BUTTON)}
+            className="px-4 py-2 text-sm font-medium bg-white text-black rounded hover:bg-gray-100 transition-colors"
+          >
+            {t(I18nKey.ENTERPRISE$DONE_BUTTON)}
+          </button>
+        </div>
+      </div>
+    </ModalBackdrop>
+  );
+}

frontend/src/i18n/declaration.ts

@@ -1218,5 +1218,9 @@ export enum I18nKey {
   ENTERPRISE$FORM_MESSAGE_SAAS_PLACEHOLDER = "ENTERPRISE$FORM_MESSAGE_SAAS_PLACEHOLDER",
   ENTERPRISE$FORM_MESSAGE_SELF_HOSTED_PLACEHOLDER = "ENTERPRISE$FORM_MESSAGE_SELF_HOSTED_PLACEHOLDER",
   ENTERPRISE$FORM_SUBMIT = "ENTERPRISE$FORM_SUBMIT",
+  ENTERPRISE$REQUEST_SUBMITTED_TITLE = "ENTERPRISE$REQUEST_SUBMITTED_TITLE",
+  ENTERPRISE$REQUEST_SUBMITTED_DESCRIPTION = "ENTERPRISE$REQUEST_SUBMITTED_DESCRIPTION",
+  ENTERPRISE$DONE_BUTTON = "ENTERPRISE$DONE_BUTTON",
   COMMON$BACK = "COMMON$BACK",
+  MODAL$CLOSE_BUTTON_LABEL = "MODAL$CLOSE_BUTTON_LABEL",
 }

frontend/src/i18n/translation.json

@@ -20711,6 +20711,57 @@
     "tr": "Gönder",
     "uk": "Надіслати"
   },
+  "ENTERPRISE$REQUEST_SUBMITTED_TITLE": {
+    "en": "Request submitted",
+    "ja": "リクエストが送信されました",
+    "zh-CN": "请求已提交",
+    "zh-TW": "請求已提交",
+    "ko-KR": "요청이 제출되었습니다",
+    "no": "Forespørsel sendt",
+    "ar": "تم إرسال الطلب",
+    "de": "Anfrage gesendet",
+    "fr": "Demande soumise",
+    "it": "Richiesta inviata",
+    "pt": "Solicitação enviada",
+    "es": "Solicitud enviada",
+    "ca": "Sol·licitud enviada",
+    "tr": "İstek gönderildi",
+    "uk": "Запит надіслано"
+  },
+  "ENTERPRISE$REQUEST_SUBMITTED_DESCRIPTION": {
+    "en": "Your request has been submitted. We will follow up with next steps shortly.",
+    "ja": "リクエストが送信されました。次のステップについて、まもなくご連絡いたします。",
+    "zh-CN": "您的请求已提交。我们将很快与您联系后续步骤。",
+    "zh-TW": "您的請求已提交。我們將很快與您聯繫後續步驟。",
+    "ko-KR": "요청이 제출되었습니다. 곧 다음 단계에 대해 연락드리겠습니다.",
+    "no": "Forespørselen din er sendt. Vi følger opp med neste trinn snart.",
+    "ar": "تم إرسال طلبك. سنتواصل معك قريباً بشأن الخطوات التالية.",
+    "de": "Ihre Anfrage wurde gesendet. Wir werden uns in Kürze mit den nächsten Schritten bei Ihnen melden.",
+    "fr": "Votre demande a été soumise. Nous vous contacterons prochainement pour les prochaines étapes.",
+    "it": "La tua richiesta è stata inviata. Ti contatteremo a breve con i prossimi passi.",
+    "pt": "Sua solicitação foi enviada. Entraremos em contato em breve com os próximos passos.",
+    "es": "Su solicitud ha sido enviada. Nos pondremos en contacto pronto con los próximos pasos.",
+    "ca": "La seva sol·licitud s'ha enviat. Ens posarem en contacte aviat amb els propers passos.",
+    "tr": "İsteğiniz gönderildi. En kısa sürede sonraki adımlar hakkında sizinle iletişime geçeceğiz.",
+    "uk": "Ваш запит надіслано. Ми зв'яжемося з вами найближчим часом щодо наступних кроків."
+  },
+  "ENTERPRISE$DONE_BUTTON": {
+    "en": "Done",
+    "ja": "完了",
+    "zh-CN": "完成",
+    "zh-TW": "完成",
+    "ko-KR": "완료",
+    "no": "Ferdig",
+    "ar": "تم",
+    "de": "Fertig",
+    "fr": "Terminé",
+    "it": "Fatto",
+    "pt": "Concluído",
+    "es": "Hecho",
+    "ca": "Fet",
+    "tr": "Tamam",
+    "uk": "Готово"
+  },
   "COMMON$BACK": {
     "en": "Back",
     "ja": "戻る",
@@ -20727,5 +20778,22 @@
     "ca": "Enrere",
     "tr": "Geri",
     "uk": "Назад"
+  },
+  "MODAL$CLOSE_BUTTON_LABEL": {
+    "en": "Close",
+    "ja": "閉じる",
+    "zh-CN": "关闭",
+    "zh-TW": "關閉",
+    "ko-KR": "닫기",
+    "no": "Lukk",
+    "ar": "إغلاق",
+    "de": "Schließen",
+    "fr": "Fermer",
+    "it": "Chiudi",
+    "pt": "Fechar",
+    "es": "Cerrar",
+    "ca": "Tancar",
+    "tr": "Kapat",
+    "uk": "Закрити"
   }
 }