diff --git a/lib/hooks/toggle-unread-status.js b/lib/hooks/toggle-unread-status.js
new file mode 100644
--- /dev/null
+++ b/lib/hooks/toggle-unread-status.js
@@ -0,0 +1,55 @@
+// @flow
+
+import * as React from 'react';
+
+import {
+  setThreadUnreadStatus,
+  setThreadUnreadStatusActionTypes,
+} from '../actions/activity-actions';
+import type {
+  SetThreadUnreadStatusPayload,
+  SetThreadUnreadStatusRequest,
+} from '../types/activity-types';
+import type { ThreadInfo } from '../types/thread-types';
+import { useDispatchActionPromise, useServerCall } from '../utils/action-utils';
+
+function useToggleUnreadStatus(
+  threadInfo: ThreadInfo,
+  mostRecentNonLocalMessage: ?string,
+  onAfter: () => void,
+): () => void {
+  const dispatchActionPromise = useDispatchActionPromise();
+  const boundSetThreadUnreadStatus: (
+    request: SetThreadUnreadStatusRequest,
+  ) => Promise<SetThreadUnreadStatusPayload> = useServerCall(
+    setThreadUnreadStatus,
+  );
+  const toggleUnreadStatus = React.useCallback(() => {
+    const { unread } = threadInfo.currentUser;
+    const request = {
+      threadID: threadInfo.id,
+      unread: !unread,
+      latestMessage: mostRecentNonLocalMessage,
+    };
+    dispatchActionPromise(
+      setThreadUnreadStatusActionTypes,
+      boundSetThreadUnreadStatus(request),
+      undefined,
+      {
+        threadID: threadInfo.id,
+        unread: !unread,
+      },
+    );
+    onAfter();
+  }, [
+    threadInfo,
+    mostRecentNonLocalMessage,
+    dispatchActionPromise,
+    onAfter,
+    boundSetThreadUnreadStatus,
+  ]);
+
+  return toggleUnreadStatus;
+}
+
+export default useToggleUnreadStatus;
diff --git a/web/chat/chat-thread-list-item-menu.react.js b/web/chat/chat-thread-list-item-menu.react.js
--- a/web/chat/chat-thread-list-item-menu.react.js
+++ b/web/chat/chat-thread-list-item-menu.react.js
@@ -3,19 +3,8 @@
 import classNames from 'classnames';
 import * as React from 'react';
 
-import {
-  setThreadUnreadStatusActionTypes,
-  setThreadUnreadStatus,
-} from 'lib/actions/activity-actions';
-import type {
-  SetThreadUnreadStatusPayload,
-  SetThreadUnreadStatusRequest,
-} from 'lib/types/activity-types';
+import useToggleUnreadStatus from 'lib/hooks/toggle-unread-status';
 import type { ThreadInfo } from 'lib/types/thread-types';
-import {
-  useServerCall,
-  useDispatchActionPromise,
-} from 'lib/utils/action-utils';
 
 import SWMansionIcon from '../SWMansionIcon.react';
 import css from './chat-thread-list.css';
@@ -38,37 +27,11 @@
   }, []);
 
   const { threadInfo, mostRecentNonLocalMessage } = props;
-  const dispatchActionPromise = useDispatchActionPromise();
-  const boundSetThreadUnreadStatus: (
-    request: SetThreadUnreadStatusRequest,
-  ) => Promise<SetThreadUnreadStatusPayload> = useServerCall(
-    setThreadUnreadStatus,
-  );
-  const toggleUnreadStatus = React.useCallback(() => {
-    const { unread } = threadInfo.currentUser;
-    const request = {
-      threadID: threadInfo.id,
-      unread: !unread,
-      latestMessage: mostRecentNonLocalMessage,
-    };
-    dispatchActionPromise(
-      setThreadUnreadStatusActionTypes,
-      boundSetThreadUnreadStatus(request),
-      undefined,
-      {
-        threadID: threadInfo.id,
-        unread: !unread,
-      },
-    );
-    hideMenu();
-  }, [
+  const toggleUnreadStatus = useToggleUnreadStatus(
     threadInfo,
     mostRecentNonLocalMessage,
-    dispatchActionPromise,
     hideMenu,
-    boundSetThreadUnreadStatus,
-  ]);
-
+  );
   const toggleUnreadStatusButtonText = `Mark as ${
     threadInfo.currentUser.unread ? 'read' : 'unread'
   }`;