add useSiteUrl

packages/app/src/client/services/ContextExtractor.tsx

@@ -2,6 +2,7 @@ import React, { FC, useEffect, useState } from 'react';
 import { pagePathUtils } from '@growi/core';
 
 import {
+  useSiteUrl,
   useCurrentCreatedAt, useDeleteUsername, useDeletedAt, useHasChildren, useHasDraftOnHackmd,
   useIsDeleted, useIsNotCreatable, useIsTrashPage, useIsUserPage, useLastUpdateUsername,
   useCurrentPageId, usePageIdOnHackmd, usePageUser, useCurrentPagePath, useRevisionCreatedAt, useRevisionId, useRevisionIdHackmdSynced,
@@ -101,6 +102,7 @@ const ContextExtractorOnce: FC = () => {
   useCurrentProductNavWidth(userUISettings?.currentProductNavWidth);
 
   // hydrated config
+  useSiteUrl(configByContextHydrate.crowi.url);
   useIsAclEnabled(configByContextHydrate.isAclEnabled);
   useIsSearchServiceConfigured(configByContextHydrate.isSearchServiceConfigured);
   useIsSearchServiceReachable(configByContextHydrate.isSearchServiceReachable);

packages/app/src/stores/context.tsx

@@ -11,6 +11,11 @@ import { TargetAndAncestors, NotFoundTargetPathOrId, IsNotFoundPermalink } from
 
 type Nullable<T> = T | null;
 
+
+export const useSiteUrl = (initialData?: string): SWRResponse<string, Error> => {
+  return useStaticSWR<string, Error>('siteUrl', initialData);
+};
+
 export const useCurrentUser = (initialData?: Nullable<IUser>): SWRResponse<Nullable<IUser>, Error> => {
   return useStaticSWR<Nullable<IUser>, Error>('currentUser', initialData);
 };