From 413454b6e61d6e3c237a3ff212b3d47deae1dd5a Mon Sep 17 00:00:00 2001
From: Braden MacDonald <braden@opencraft.com>
Date: Tue, 14 Oct 2025 09:43:33 -0700
Subject: [PATCH] refactor: update propTypes -> TypeScript in Studio Header
 (#643)

---
 src/studio-header/BrandNav.tsx          | 17 +++--
 src/studio-header/CourseLockUp.tsx      | 38 ++++------
 src/studio-header/HeaderBody.tsx        | 92 +++++++++----------------
 src/studio-header/MobileHeader.tsx      | 60 +++++-----------
 src/studio-header/NavDropdownMenu.tsx   | 20 +++---
 src/studio-header/StudioHeader.test.tsx |  8 +--
 src/studio-header/StudioHeader.tsx      | 60 +++++++---------
 7 files changed, 110 insertions(+), 185 deletions(-)

diff --git a/src/studio-header/BrandNav.tsx b/src/studio-header/BrandNav.tsx
index fd9ecd0..5e3bba3 100644
--- a/src/studio-header/BrandNav.tsx
+++ b/src/studio-header/BrandNav.tsx
@@ -1,8 +1,13 @@
-import React from 'react';
-import PropTypes from 'prop-types';
+import React, { type FunctionComponent } from 'react';
 import { Link } from 'react-router-dom';
 
-const BrandNav = ({
+interface Props {
+  studioBaseUrl: string;
+  logo: string;
+  logoAltText: string;
+}
+
+const BrandNav: FunctionComponent<Props> = ({
   studioBaseUrl,
   logo,
   logoAltText,
@@ -16,10 +21,4 @@ const BrandNav = ({
   </Link>
 );
 
-BrandNav.propTypes = {
-  studioBaseUrl: PropTypes.string.isRequired,
-  logo: PropTypes.string.isRequired,
-  logoAltText: PropTypes.string.isRequired,
-};
-
 export default BrandNav;
diff --git a/src/studio-header/CourseLockUp.tsx b/src/studio-header/CourseLockUp.tsx
index d0c687a..8539d16 100644
--- a/src/studio-header/CourseLockUp.tsx
+++ b/src/studio-header/CourseLockUp.tsx
@@ -1,5 +1,4 @@
-import React from 'react';
-import PropTypes from 'prop-types';
+import React, { type FunctionComponent } from 'react';
 import { useIntl } from '@edx/frontend-platform/i18n';
 import {
   OverlayTrigger,
@@ -9,14 +8,19 @@ import { Link } from 'react-router-dom';
 
 import messages from './messages';
 
-const CourseLockUp = (
-  {
-    outlineLink,
-    org,
-    number,
-    title,
-  },
-) => {
+interface Props {
+  outlineLink?: string;
+  org?: string;
+  number?: string;
+  title?: string;
+}
+
+const CourseLockUp: FunctionComponent<Props> = ({
+  outlineLink = '',
+  org = '',
+  number = '',
+  title = '',
+}) => {
   const intl = useIntl();
 
   return (
@@ -41,18 +45,4 @@ const CourseLockUp = (
   );
 };
 
-CourseLockUp.propTypes = {
-  number: PropTypes.string,
-  org: PropTypes.string,
-  title: PropTypes.string,
-  outlineLink: PropTypes.string,
-};
-
-CourseLockUp.defaultProps = {
-  number: null,
-  org: null,
-  title: null,
-  outlineLink: null,
-};
-
 export default CourseLockUp;
diff --git a/src/studio-header/HeaderBody.tsx b/src/studio-header/HeaderBody.tsx
index 598aec3..d276159 100644
--- a/src/studio-header/HeaderBody.tsx
+++ b/src/studio-header/HeaderBody.tsx
@@ -1,5 +1,4 @@
-import React from 'react';
-import PropTypes from 'prop-types';
+import React, { type ReactNode, type ComponentProps } from 'react';
 import { useIntl } from '@edx/frontend-platform/i18n';
 import classNames from 'classnames';
 import {
@@ -19,6 +18,32 @@ import BrandNav from './BrandNav';
 import NavDropdownMenu from './NavDropdownMenu';
 import messages from './messages';
 
+export interface HeaderBodyProps {
+  studioBaseUrl: string;
+  logoutUrl: string;
+  setModalPopupTarget?: ((instance: HTMLButtonElement | null) => void) | null;
+  toggleModalPopup?: React.MouseEventHandler<HTMLButtonElement>;
+  isModalPopupOpen?: boolean;
+  number?: string;
+  org?: string;
+  title: string;
+  logo: string;
+  logoAltText: string;
+  authenticatedUserAvatar?: string;
+  username?: string;
+  isAdmin?: boolean;
+  isMobile?: boolean;
+  isHiddenMainMenu?: boolean;
+  mainMenuDropdowns?: {
+    id: string;
+    buttonTitle: ReactNode;
+    items: { title: ReactNode; href: string; }[];
+  }[];
+  outlineLink?: string;
+  searchButtonAction?: React.MouseEventHandler<HTMLButtonElement>;
+  containerProps?: Omit<ComponentProps<typeof Container>, 'children'>;
+}
+
 const HeaderBody = ({
   logo,
   logoAltText,
@@ -31,15 +56,15 @@ const HeaderBody = ({
   logoutUrl,
   authenticatedUserAvatar,
   isMobile,
-  setModalPopupTarget,
+  setModalPopupTarget = null,
   toggleModalPopup,
-  isModalPopupOpen,
-  isHiddenMainMenu,
-  mainMenuDropdowns,
+  isModalPopupOpen = false,
+  isHiddenMainMenu = false,
+  mainMenuDropdowns = [],
   outlineLink,
   searchButtonAction,
-  containerProps,
-}) => {
+  containerProps = {},
+}: HeaderBodyProps) => {
   const intl = useIntl();
 
   const renderBrandNav = (
@@ -52,7 +77,7 @@ const HeaderBody = ({
     />
   );
 
-  const { className: containerClassName, ...restContainerProps } = containerProps || {};
+  const { className: containerClassName, ...restContainerProps } = containerProps;
 
   return (
     <Container
@@ -144,53 +169,4 @@ const HeaderBody = ({
   );
 };
 
-HeaderBody.propTypes = {
-  studioBaseUrl: PropTypes.string.isRequired,
-  logoutUrl: PropTypes.string.isRequired,
-  setModalPopupTarget: PropTypes.func,
-  toggleModalPopup: PropTypes.func,
-  isModalPopupOpen: PropTypes.bool,
-  number: PropTypes.string,
-  org: PropTypes.string,
-  title: PropTypes.string,
-  logo: PropTypes.string,
-  logoAltText: PropTypes.string,
-  authenticatedUserAvatar: PropTypes.string,
-  username: PropTypes.string,
-  isAdmin: PropTypes.bool,
-  isMobile: PropTypes.bool,
-  isHiddenMainMenu: PropTypes.bool,
-  mainMenuDropdowns: PropTypes.arrayOf(PropTypes.shape({
-    id: PropTypes.string,
-    buttonTitle: PropTypes.node,
-    items: PropTypes.arrayOf(PropTypes.shape({
-      href: PropTypes.string,
-      title: PropTypes.node,
-    })),
-  })),
-  outlineLink: PropTypes.string,
-  searchButtonAction: PropTypes.func,
-  containerProps: PropTypes.shape(Container.propTypes),
-};
-
-HeaderBody.defaultProps = {
-  setModalPopupTarget: null,
-  toggleModalPopup: null,
-  isModalPopupOpen: false,
-  logo: null,
-  logoAltText: null,
-  number: '',
-  org: '',
-  title: '',
-  authenticatedUserAvatar: null,
-  username: null,
-  isAdmin: false,
-  isMobile: false,
-  isHiddenMainMenu: false,
-  mainMenuDropdowns: [],
-  outlineLink: null,
-  searchButtonAction: null,
-  containerProps: {},
-};
-
 export default HeaderBody;
diff --git a/src/studio-header/MobileHeader.tsx b/src/studio-header/MobileHeader.tsx
index bec1d8b..b167ded 100644
--- a/src/studio-header/MobileHeader.tsx
+++ b/src/studio-header/MobileHeader.tsx
@@ -1,19 +1,32 @@
-import React, { useState } from 'react';
-import PropTypes from 'prop-types';
+import React, { type FunctionComponent, useState } from 'react';
 import { useToggle, ModalPopup } from '@openedx/paragon';
-import HeaderBody from './HeaderBody';
+import HeaderBody, { type HeaderBodyProps } from './HeaderBody';
 import MobileMenu from './MobileMenu';
 
-const MobileHeader = ({
+type Props = Pick<HeaderBodyProps,
+| 'studioBaseUrl'
+| 'logoutUrl'
+| 'number'
+| 'org'
+| 'title'
+| 'logo'
+| 'logoAltText'
+| 'authenticatedUserAvatar'
+| 'username'
+| 'isAdmin'
+| 'mainMenuDropdowns'
+| 'outlineLink'
+>;
+
+const MobileHeader: FunctionComponent<Props> = ({
   mainMenuDropdowns,
   ...props
 }) => {
   const [isOpen, , close, toggle] = useToggle(false);
-  const [target, setTarget] = useState(null);
+  const [target, setTarget] = useState<HTMLButtonElement | null>(null);
 
   return (
     <>
-      {/* @ts-expect-error The type of 'props' is any until we convert from propTypes to TypeScript interface/types */}
       <HeaderBody
         {...props}
         isMobile
@@ -36,39 +49,4 @@ const MobileHeader = ({
   );
 };
 
-MobileHeader.propTypes = {
-  studioBaseUrl: PropTypes.string.isRequired, // eslint-disable-line react/no-unused-prop-types
-  logoutUrl: PropTypes.string.isRequired, // eslint-disable-line react/no-unused-prop-types
-  number: PropTypes.string, // eslint-disable-line react/no-unused-prop-types
-  org: PropTypes.string, // eslint-disable-line react/no-unused-prop-types
-  title: PropTypes.string, // eslint-disable-line react/no-unused-prop-types
-  logo: PropTypes.string, // eslint-disable-line react/no-unused-prop-types
-  logoAltText: PropTypes.string, // eslint-disable-line react/no-unused-prop-types
-  authenticatedUserAvatar: PropTypes.string, // eslint-disable-line react/no-unused-prop-types
-  username: PropTypes.string, // eslint-disable-line react/no-unused-prop-types
-  isAdmin: PropTypes.bool, // eslint-disable-line react/no-unused-prop-types
-  mainMenuDropdowns: PropTypes.arrayOf(PropTypes.shape({
-    id: PropTypes.string,
-    buttonTitle: PropTypes.node,
-    items: PropTypes.arrayOf(PropTypes.shape({
-      href: PropTypes.string,
-      title: PropTypes.node,
-    })),
-  })),
-  outlineLink: PropTypes.string, // eslint-disable-line react/no-unused-prop-types
-};
-
-MobileHeader.defaultProps = {
-  logo: null,
-  logoAltText: null,
-  number: null,
-  org: null,
-  title: null,
-  authenticatedUserAvatar: null,
-  username: null,
-  isAdmin: false,
-  mainMenuDropdowns: [],
-  outlineLink: null,
-};
-
 export default MobileHeader;
diff --git a/src/studio-header/NavDropdownMenu.tsx b/src/studio-header/NavDropdownMenu.tsx
index 8f46f15..54ab507 100644
--- a/src/studio-header/NavDropdownMenu.tsx
+++ b/src/studio-header/NavDropdownMenu.tsx
@@ -1,16 +1,21 @@
-import React from 'react';
-import PropTypes from 'prop-types';
+import React, { type ReactNode } from 'react';
 import {
   Dropdown,
   DropdownButton,
 } from '@openedx/paragon';
 import { Link } from 'react-router-dom';
 
+interface Props {
+  id: string;
+  buttonTitle: ReactNode;
+  items: { title: ReactNode; href: string; }[];
+}
+
 const NavDropdownMenu = ({
   id,
   buttonTitle,
   items,
-}) => (
+}: Props) => (
   <DropdownButton
     id={id}
     title={buttonTitle}
@@ -30,13 +35,4 @@ const NavDropdownMenu = ({
   </DropdownButton>
 );
 
-NavDropdownMenu.propTypes = {
-  id: PropTypes.string.isRequired,
-  buttonTitle: PropTypes.node.isRequired,
-  items: PropTypes.arrayOf(PropTypes.shape({
-    href: PropTypes.string.isRequired,
-    title: PropTypes.node.isRequired,
-  })).isRequired,
-};
-
 export default NavDropdownMenu;
diff --git a/src/studio-header/StudioHeader.test.tsx b/src/studio-header/StudioHeader.test.tsx
index 9e8cd68..0ff402a 100644
--- a/src/studio-header/StudioHeader.test.tsx
+++ b/src/studio-header/StudioHeader.test.tsx
@@ -71,12 +71,8 @@ const props: React.ComponentProps<typeof StudioHeader> = {
     },
   ],
   outlineLink: 'tEsTLInK',
-  searchButtonAction: null,
+  searchButtonAction: undefined,
   isNewHomePage: true,
-  // These default values shouldn't be needed but typescript is confused by propTypes; can remove after converting
-  // from propTypes to TypeScript:
-  containerProps: {},
-  isHiddenMainMenu: false,
 };
 
 describe('Header', () => {
@@ -146,7 +142,7 @@ describe('Header', () => {
     });
 
     it('should not show search button', async () => {
-      const testProps = { ...props, searchButtonAction: null };
+      const testProps = { ...props, searchButtonAction: undefined };
       const { queryByRole } = render(<RootWrapper {...testProps} />);
       expect(queryByRole('button', { name: 'Search content' })).not.toBeInTheDocument();
     });
diff --git a/src/studio-header/StudioHeader.tsx b/src/studio-header/StudioHeader.tsx
index 735cfa5..9d20bed 100644
--- a/src/studio-header/StudioHeader.tsx
+++ b/src/studio-header/StudioHeader.tsx
@@ -1,11 +1,10 @@
-import React, { useContext } from 'react';
-import PropTypes from 'prop-types';
+import React, { type FunctionComponent, useContext } from 'react';
 import Responsive from 'react-responsive';
 import { AppContext } from '@edx/frontend-platform/react';
 import { ensureConfig } from '@edx/frontend-platform';
 
 import MobileHeader from './MobileHeader';
-import HeaderBody from './HeaderBody';
+import HeaderBody, { HeaderBodyProps } from './HeaderBody';
 
 ensureConfig([
   'STUDIO_BASE_URL',
@@ -15,9 +14,29 @@ ensureConfig([
   'LOGO_URL',
 ], 'Studio Header component');
 
-const StudioHeader = ({
-  number, org, title, containerProps, isHiddenMainMenu, mainMenuDropdowns,
-  outlineLink, searchButtonAction, isNewHomePage,
+type Props = Pick<HeaderBodyProps,
+| 'number'
+| 'org'
+| 'title'
+| 'containerProps'
+| 'isHiddenMainMenu'
+| 'mainMenuDropdowns'
+| 'outlineLink'
+| 'searchButtonAction'
+> & {
+  isNewHomePage: boolean;
+};
+
+const StudioHeader: FunctionComponent<Props> = ({
+  number,
+  org,
+  title,
+  containerProps,
+  isHiddenMainMenu,
+  mainMenuDropdowns,
+  outlineLink,
+  searchButtonAction,
+  isNewHomePage,
 }) => {
   // @ts-expect-error - frontend-platform doesn't yet have type information :/
   const { authenticatedUser, config } = useContext(AppContext);
@@ -52,33 +71,4 @@ const StudioHeader = ({
   );
 };
 
-StudioHeader.propTypes = {
-  number: PropTypes.string,
-  org: PropTypes.string,
-  title: PropTypes.string.isRequired,
-  containerProps: HeaderBody.propTypes.containerProps,
-  isHiddenMainMenu: PropTypes.bool,
-  mainMenuDropdowns: PropTypes.arrayOf(PropTypes.shape({
-    id: PropTypes.string,
-    buttonTitle: PropTypes.node,
-    items: PropTypes.arrayOf(PropTypes.shape({
-      href: PropTypes.string,
-      title: PropTypes.node,
-    })),
-  })),
-  outlineLink: PropTypes.string,
-  searchButtonAction: PropTypes.func,
-  isNewHomePage: PropTypes.bool.isRequired,
-};
-
-StudioHeader.defaultProps = {
-  number: '',
-  org: '',
-  containerProps: {},
-  isHiddenMainMenu: false,
-  mainMenuDropdowns: [],
-  outlineLink: null,
-  searchButtonAction: null,
-};
-
 export default StudioHeader;