Deprecate support for children in enqueueSnackbar options

src/SnackbarItem/SnackbarItem.js

@@ -7,8 +7,7 @@ import Collapse from '@material-ui/core/Collapse';
 import SnackbarContent from '@material-ui/core/SnackbarContent';
 import { getTransitionDirection, getSnackbarClasses, getCollapseClasses } from './SnackbarItem.util';
 import styles from './SnackbarItem.styles';
-import { capitalise, MESSAGES, REASONS } from '../utils/constants';
-import warning from '../utils/warning';
+import { capitalise, REASONS } from '../utils/constants';
 
 
 class SnackbarItem extends Component {
@@ -88,7 +87,6 @@ class SnackbarItem extends Component {
             key,
             persist,
             variant,
-            children,
             content: singleContent,
             action: singleAction,
             ContentProps: singleContentProps = {},
@@ -121,15 +119,7 @@ class SnackbarItem extends Component {
             finalAction = contentProps.action(key);
         }
 
-        let snackContent;
-        if (snack.children) {
-            snackContent = snack.children;
-            warning(MESSAGES.NO_CHILDREN_OPTION);
-        }
-        if (singleContent) {
-            snackContent = singleContent;
-        }
-        snackContent = snackContent || content;
+        let snackContent = singleContent || content;
         if (snackContent && typeof snackContent === 'function') {
             snackContent = snackContent(key, snack.message);
         }

src/SnackbarProvider.js

@@ -320,7 +320,8 @@ SnackbarProvider.propTypes = {
      */
     dense: PropTypes.bool,
     /**
-     * Used to easily display different variants of snackbars.
+     * Used to easily display different variant of snackbars. When passed to `SnackbarProvider`
+     * all snackbars inherit the `variant`, unless you override it in `enqueueSnackbar` options.
      */
     variant: PropTypes.oneOf(
         ['default', 'error', 'success', 'warning', 'info'],

src/index.d.ts

@@ -33,7 +33,6 @@ export interface OptionsObject extends Modify<Omit<SnackbarProps, RemovedAttribu
     variant?: VariantType;
     persist?: boolean;
     preventDuplicate?: boolean;
-    children?: SnackbarContent; // To be deprecated
     content?: SnackbarContent;
     action?: SnackbarAction;
 }

src/utils/constants.js

@@ -70,7 +70,6 @@ export const defaultIconVariant = {
 
 export const MESSAGES = {
     NO_PERSIST_ALL: 'WARNING - notistack: Reached maxSnack while all enqueued snackbars have \'persist\' flag. Notistack will dismiss the oldest snackbar anyway to allow other ones in the queue to be presented.',
-    NO_CHILDREN_OPTION: 'WARNING - notistack: \'children\' option in enqueueSnackbar has been deprecated and renamed to \'content\', and it will be removed in the next major release.',
 };
 
 export const SNACKBAR_INDENTS = {