fix: Allow to configure the Toast portail container root

packages/react-aria-components/package.json

@@ -45,6 +45,7 @@
     "@react-aria/focus": "^3.20.1",
     "@react-aria/interactions": "^3.24.1",
     "@react-aria/live-announcer": "^3.4.1",
+    "@react-aria/ssr": "^3.9.7",
     "@react-aria/toolbar": "3.0.0-beta.14",
     "@react-aria/utils": "^3.28.1",
     "@react-aria/virtualizer": "^4.1.3",

packages/react-aria-components/src/Toast.tsx

@@ -18,6 +18,7 @@ import {forwardRefType} from '@react-types/shared';
 import {QueuedToast, ToastQueue, ToastState, useToastQueue} from 'react-stately';
 import React, {createContext, ForwardedRef, forwardRef, HTMLAttributes, JSX, ReactElement, useContext} from 'react';
 import {TextContext} from './Text';
+import {useIsSSR} from '@react-aria/ssr';
 import {useObjectRef} from '@react-aria/utils';
 
 const ToastStateContext = createContext<ToastState<any> | null>(null);
@@ -41,13 +42,19 @@ export interface ToastRegionProps<T> extends AriaToastRegionProps, StyleRenderPr
   /** The queue of toasts to display. */
   queue: ToastQueue<T>,
   /** A function to render each toast. */
-  children: (renderProps: {toast: QueuedToast<T>}) => ReactElement
+  children: (renderProps: {toast: QueuedToast<T>}) => ReactElement,
+  /**
+   * The container element in which the toast region portal will be placed.
+   * @default document.body
+   */
+  portalContainer?: Element
 }
 
 /**
  * A ToastRegion displays one or more toast notifications.
  */
 export const ToastRegion = /*#__PURE__*/ (forwardRef as forwardRefType)(function ToastRegion<T>(props: ToastRegionProps<T>, ref: ForwardedRef<HTMLDivElement>): JSX.Element | null {
+  let isSSR = useIsSSR();
   let state = useToastQueue(props.queue);
   let objectRef = useObjectRef(ref);
   let {regionProps} = useToastRegion(props, state, objectRef);
@@ -64,6 +71,8 @@ export const ToastRegion = /*#__PURE__*/ (forwardRef as forwardRefType)(function
     }
   });
 
+  let {portalContainer = isSSR ? null : document.body} = props;
+
   let region = (
     <ToastStateContext.Provider value={state}>
       <div
@@ -77,8 +86,8 @@ export const ToastRegion = /*#__PURE__*/ (forwardRef as forwardRefType)(function
     </ToastStateContext.Provider>
   );
 
-  return state.visibleToasts.length > 0 && typeof document !== 'undefined'
-    ? createPortal(region, document.body)
+  return state.visibleToasts.length > 0 && portalContainer
+    ? createPortal(region, portalContainer)
     : null;
 });
 

packages/react-aria-components/test/Toast.test.js

@@ -322,4 +322,43 @@ describe('Toast', () => {
     let region = getByRole('region');
     expect(region).toHaveAttribute('aria-label', 'Toasts');
   });
+
+  it('should render the toast region in the portal container', async () => {
+    let queue = new ToastQueue();
+
+    function LocalToast(props) {
+      return (
+        <>
+          <ToastRegion queue={queue} portalContainer={props.container}>
+            {({toast}) => (
+              <Toast toast={toast}>
+                <ToastContent>
+                  <Text slot="title">{toast.content}</Text>
+                </ToastContent>
+                <Button slot="close">x</Button>
+              </Toast>
+            )}
+          </ToastRegion> 
+
+          <Button onPress={() => queue.add('Toast')}>Add toast</Button>
+        </>
+      );
+    }
+    function App() {
+      let [container, setContainer] = React.useState();
+      return (
+        <>
+          <LocalToast container={container} />
+          <div ref={setContainer} data-testid="custom-container" />
+        </>
+      );
+    }
+
+    let {getByRole, getByTestId} = render(<App />);
+
+    let button = getByRole('button');
+    await user.click(button);
+
+    expect(within(getByTestId('custom-container')).getByRole('alertdialog')).toBeInTheDocument();
+  });
 });

yarn.lock

@@ -28997,6 +28997,7 @@ __metadata:
     "@react-aria/focus": "npm:^3.20.1"
     "@react-aria/interactions": "npm:^3.24.1"
     "@react-aria/live-announcer": "npm:^3.4.1"
+    "@react-aria/ssr": "npm:^3.9.7"
     "@react-aria/toolbar": "npm:3.0.0-beta.14"
     "@react-aria/utils": "npm:^3.28.1"
     "@react-aria/virtualizer": "npm:^4.1.3"