Allow child component functions to be executed

packages/app/src/client/interfaces/clearable.ts

@@ -0,0 +1,3 @@
+export interface IClearable {
+  clear: () => void,
+}

packages/app/src/components/Admin/AuditLog/SearchUsernameTypeahead.tsx

@@ -1,10 +1,11 @@
 import React, {
-  FC, Fragment, useState, useCallback,
+  FC, Fragment, useState, useCallback, useRef, forwardRef, useImperativeHandle,
 } from 'react';
 
 import { AsyncTypeahead, Menu, MenuItem } from 'react-bootstrap-typeahead';
 import { useTranslation } from 'react-i18next';
 
+import { IClearable } from '~/client/interfaces/clearable';
 import { useSWRxUsernames } from '~/stores/user';
 
 
@@ -25,10 +26,12 @@ type Props = {
   onChange: (text: string[]) => void
 }
 
-export const SearchUsernameTypeahead: FC<Props> = (props: Props) => {
+export const SearchUsernameTypeahead = forwardRef<IClearable, Props>((props: Props, ref) => {
   const { onChange } = props;
   const { t } = useTranslation();
 
+  const typeaheadRef = useRef<IClearable>(null);
+
   /*
    * State
    */
@@ -96,6 +99,15 @@ export const SearchUsernameTypeahead: FC<Props> = (props: Props) => {
     );
   }, []);
 
+  useImperativeHandle(ref, () => ({
+    clear() {
+      const instance = typeaheadRef?.current;
+      if (instance != null) {
+        instance.clear();
+      }
+    },
+  }));
+
   return (
     <div className="input-group mr-2">
       <div className="input-group-prepend">
@@ -104,6 +116,7 @@ export const SearchUsernameTypeahead: FC<Props> = (props: Props) => {
         </span>
       </div>
       <AsyncTypeahead
+        ref={typeaheadRef}
         id="search-username-typeahead-asynctypeahead"
         multiple
         delay={400}
@@ -119,4 +132,4 @@ export const SearchUsernameTypeahead: FC<Props> = (props: Props) => {
       />
     </div>
   );
-};
+});

packages/app/src/components/Admin/AuditLogManagement.tsx

@@ -1,8 +1,11 @@
-import React, { FC, useState, useCallback } from 'react';
+import React, {
+  FC, useState, useCallback, useRef,
+} from 'react';
 
 import { format } from 'date-fns';
 import { useTranslation } from 'react-i18next';
 
+import { IClearable } from '~/client/interfaces/clearable';
 import { toastError } from '~/client/util/apiNotification';
 import { SupportedActionType } from '~/interfaces/activity';
 import { useSWRxActivity } from '~/stores/activity';
@@ -29,6 +32,8 @@ const PAGING_LIMIT = 10;
 export const AuditLogManagement: FC = () => {
   const { t } = useTranslation();
 
+  const typeaheadRef = useRef<IClearable>(null);
+
   const { data: auditLogAvailableActionsData } = useAuditLogAvailableActions();
   const auditLogAvailableActions = auditLogAvailableActionsData != null ? auditLogAvailableActionsData : [];
 
@@ -97,6 +102,7 @@ export const AuditLogManagement: FC = () => {
     setActivePage(1);
     setStartDate(null);
     setEndDate(null);
+    typeaheadRef.current?.clear();
     setSelectedUsernames([]);
     setActionMap(new Map<SupportedActionType, boolean>(auditLogAvailableActions.map(action => [action, true])));
   }, [setActivePage, setStartDate, setEndDate, setSelectedUsernames, setActionMap, auditLogAvailableActions]);
@@ -135,6 +141,7 @@ export const AuditLogManagement: FC = () => {
         <>
           <div className="form-inline mb-3">
             <SearchUsernameTypeahead
+              ref={typeaheadRef}
               onChange={setUsernamesHandler}
             />