Adding new slots for Notification Tray integration

src/plugin-slots/README.md

@@ -24,3 +24,6 @@
 * [`org.openedx.frontend.layout.header_mobile_main_menu.v1`](./MobileMainMenuSlot/)
 * [`org.openedx.frontend.layout.header_mobile_user_menu.v1`](./MobileUserMenuSlot/)
 * [`org.openedx.frontend.layout.header_mobile_user_menu_trigger.v1`](./MobileUserMenuToggleSlot/)
+
+### Studio Header
+* [`org.openedx.frontend.layout.studio_header_search_button_slot.v1`](./StudioHeaderSearchButtonSlot/)

src/plugin-slots/StudioHeaderSearchButtonSlot/README.md

@@ -0,0 +1,89 @@
+# Studio Header Search Button Slot
+
+### Slot ID: `org.openedx.frontend.layout.studio_header_search_button_slot.v1`
+
+## Description
+
+This slot is used to replace/modify/hide the search button in the studio header.
+
+## Examples
+
+### Replace search with custom component
+
+The following `env.config.jsx` will replace the search button entirely (in this case with a custom emoji icon):
+
+![Search button being replaced](./images/studio_header_search_button_replace.png)
+
+```jsx
+import {
+  DIRECT_PLUGIN,
+  PLUGIN_OPERATIONS,
+} from "@openedx/frontend-plugin-framework";
+
+const config = {
+  pluginSlots: {
+    "org.openedx.frontend.layout.studio_header_search_button_slot.v1": {
+      keepDefault: false,
+      plugins: [
+        {
+          op: PLUGIN_OPERATIONS.Insert,
+          widget: {
+            id: "custom_notification_tray",
+            type: DIRECT_PLUGIN,
+            RenderWidget: () => <span>🔔</span>,
+          },
+        },
+      ],
+    },
+  },
+};
+
+export default config;
+```
+
+### Add custom component before and after search button
+
+The following `env.config.jsx` will insert emoji after and before the search button
+
+![Add custom component before and after search button](./images/studio_header_search_button_before_after.png)
+
+```jsx
+import {
+  DIRECT_PLUGIN,
+  PLUGIN_OPERATIONS,
+} from "@openedx/frontend-plugin-framework";
+
+const config = {
+  pluginSlots: {
+    "org.openedx.frontend.layout.studio_header_search_button_slot.v1": {
+      keepDefault: true,
+      plugins: [
+        {
+          op: PLUGIN_OPERATIONS.Insert,
+          widget: {
+            priority: 10,
+            id: 'custom_notification_tray_before',
+            type: DIRECT_PLUGIN,
+            RenderWidget: () => <span>🔔</span>,
+          },
+        },
+        {
+          op: PLUGIN_OPERATIONS.Insert,
+          widget: {
+            priority: 90,
+            id: 'custom_notification_tray_after',
+            type: DIRECT_PLUGIN,
+            RenderWidget: () => <span>🔕</span>,
+          },
+        },
+      ],
+  },
+};
+
+export default config;
+```
+
+## API
+
+- **Slot ID:** `org.openedx.frontend.layout.studio_header_search_button_slot.v1`
+- **Component:** Uses the [PluginSlot](https://github.com/openedx/frontend-plugin-framework#pluginslot) from the Open edX Frontend Plugin Framework for plugin injection.

src/plugin-slots/StudioHeaderSearchButtonSlot/index.jsx

@@ -0,0 +1,34 @@
+import React from 'react';
+import { PluginSlot } from '@openedx/frontend-plugin-framework';
+import { Nav, IconButton, Icon } from '@openedx/paragon';
+import { Search } from '@openedx/paragon/icons';
+import PropTypes from 'prop-types';
+import { useIntl } from '@edx/frontend-platform/i18n';
+import messages from '../../studio-header/messages';
+
+const StudioHeaderSearchButtonSlot = ({ searchButtonAction }) => {
+  const intl = useIntl();
+  return (
+    <PluginSlot
+      id="org.openedx.frontend.layout.studio_header_search_button_slot.v1"
+    >
+      {searchButtonAction && (
+        <Nav>
+          <IconButton
+            src={Search}
+            iconAs={Icon}
+            onClick={searchButtonAction}
+            aria-label={intl.formatMessage(messages['header.label.search.nav'])}
+            alt={intl.formatMessage(messages['header.label.search.nav'])}
+          />
+        </Nav>
+      )}
+    </PluginSlot>
+  );
+};
+
+StudioHeaderSearchButtonSlot.propTypes = {
+  searchButtonAction: PropTypes.func,
+};
+
+export default StudioHeaderSearchButtonSlot;

src/studio-header/HeaderBody.tsx

@@ -1,22 +1,19 @@
 import React, { type ReactNode, type ComponentProps } from 'react';
-import { useIntl } from '@edx/frontend-platform/i18n';
 import classNames from 'classnames';
 import {
   ActionRow,
   Button,
   Container,
-  Icon,
-  IconButton,
   Nav,
   Row,
 } from '@openedx/paragon';
-import { Close, MenuIcon, Search } from '@openedx/paragon/icons';
+import { Close, MenuIcon } from '@openedx/paragon/icons';
 
 import CourseLockUp from './CourseLockUp';
 import UserMenu from './UserMenu';
 import BrandNav from './BrandNav';
 import NavDropdownMenu from './NavDropdownMenu';
-import messages from './messages';
+import StudioHeaderSearchButtonSlot from '../plugin-slots/StudioHeaderSearchButtonSlot';
 
 export interface HeaderBodyProps {
   studioBaseUrl: string;
@@ -65,7 +62,6 @@ const HeaderBody = ({
   searchButtonAction,
   containerProps = {},
 }: HeaderBodyProps) => {
-  const intl = useIntl();
 
   const renderBrandNav = (
     <BrandNav
@@ -141,17 +137,9 @@ const HeaderBody = ({
           </>
         )}
         <ActionRow.Spacer />
-        {searchButtonAction && (
-          <Nav>
-            <IconButton
-              src={Search}
-              iconAs={Icon}
-              onClick={searchButtonAction}
-              aria-label={intl.formatMessage(messages['header.label.search.nav'])}
-              alt={intl.formatMessage(messages['header.label.search.nav'])}
-            />
-          </Nav>
-        )}
+        <StudioHeaderSearchButtonSlot
+          searchButtonAction={searchButtonAction}
+        />
         <Nav>
           <UserMenu
             {...{