[material-next][ButtonGroup] Copy ButtonGroup to material next

packages/mui-material-next/src/Button/Button.tsx

@@ -1,7 +1,11 @@
 'use client';
 import * as React from 'react';
 import PropTypes from 'prop-types';
-import { unstable_capitalize as capitalize } from '@mui/utils';
+import clsx from 'clsx';
+import {
+  unstable_capitalize as capitalize,
+  internal_resolveProps as resolveProps,
+} from '@mui/utils';
 import { useSlotProps } from '@mui/base/utils';
 import { unstable_composeClasses as composeClasses } from '@mui/base/composeClasses';
 import { useThemeProps, alpha, shouldForwardProp } from '@mui/system';
@@ -10,6 +14,8 @@ import { getButtonUtilityClass } from './buttonClasses';
 import buttonBaseClasses from '../ButtonBase/buttonBaseClasses';
 import { ButtonProps, ExtendButton, ButtonTypeMap, ButtonOwnerState } from './Button.types';
 import ButtonBase from '../ButtonBase';
+import ButtonGroupButtonContext from '../ButtonGroup/ButtonGroupButtonContext';
+import ButtonGroupContext from '../ButtonGroup/ButtonGroupContext';
 
 const useUtilityClasses = (ownerState: ButtonOwnerState) => {
   const { classes, color, disableElevation, fullWidth, size, variant } = ownerState;
@@ -366,7 +372,10 @@ const ButtonEndIcon = styled('span', {
 const Button = React.forwardRef(function Button<
   BaseComponentType extends React.ElementType = ButtonTypeMap['defaultComponent'],
 >(inProps: ButtonProps<BaseComponentType>, ref: React.ForwardedRef<any>) {
-  const props = useThemeProps({ props: inProps, name: 'MuiButton' });
+  const contextProps = React.useContext(ButtonGroupContext);
+  const buttonGroupButtonContextPositionClassName = React.useContext(ButtonGroupButtonContext);
+  const resolvedProps = resolveProps(contextProps as ButtonProps<BaseComponentType>, inProps);
+  const props = useThemeProps({ props: resolvedProps, name: 'MuiButton' });
   const {
     children,
     classes: classesProp,
@@ -392,6 +401,8 @@ const Button = React.forwardRef(function Button<
 
   const classes = useUtilityClasses(ownerState);
 
+  const positionClassName = buttonGroupButtonContextPositionClassName ?? '';
+
   const rootProps = useSlotProps({
     elementType: ButtonRoot,
     externalForwardedProps: other,
@@ -401,6 +412,7 @@ const Button = React.forwardRef(function Button<
       ref,
     },
     ownerState,
+    className: clsx(contextProps.className, positionClassName),
   });
 
   const startIcon = startIconProp && (

packages/mui-material-next/src/ButtonGroup/ButtonGroup.d.ts

@@ -0,0 +1,107 @@
+import * as React from 'react';
+import { SxProps } from '@mui/system';
+import { OverridableComponent, OverridableStringUnion, OverrideProps } from '@mui/types';
+import { Theme } from '../styles';
+import { ButtonGroupClasses } from './buttonGroupClasses';
+
+export interface ButtonGroupPropsColorOverrides {}
+export interface ButtonGroupPropsVariantOverrides {}
+export interface ButtonGroupPropsSizeOverrides {}
+
+export interface ButtonGroupOwnProps {
+  /**
+   * The content of the component.
+   */
+  children?: React.ReactNode;
+  /**
+   * Override or extend the styles applied to the component.
+   */
+  classes?: Partial<ButtonGroupClasses>;
+  /**
+   * The color of the component.
+   * It supports both default and custom theme colors, which can be added as shown in the
+   * [palette customization guide](https://mui.com/material-ui/customization/palette/#custom-colors).
+   * @default 'primary'
+   */
+  color?: OverridableStringUnion<
+    'inherit' | 'primary' | 'secondary' | 'error' | 'info' | 'success' | 'warning',
+    ButtonGroupPropsColorOverrides
+  >;
+  /**
+   * If `true`, the component is disabled.
+   * @default false
+   */
+  disabled?: boolean;
+  /**
+   * If `true`, no elevation is used.
+   * @default false
+   */
+  disableElevation?: boolean;
+  /**
+   * If `true`, the button ripple effect is disabled.
+   * @default false
+   */
+  disableRipple?: boolean;
+  /**
+   * If `true`, the touch ripple effect is disabled.
+   * @default false
+   */
+  disableTouchRipple?: boolean;
+  /**
+   * If `true`, the buttons will take up the full width of its container.
+   * @default false
+   */
+  fullWidth?: boolean;
+  /**
+   * The component orientation (layout flow direction).
+   * @default 'horizontal'
+   */
+  orientation?: 'vertical' | 'horizontal';
+  /**
+   * The size of the component.
+   * `small` is equivalent to the dense button styling.
+   * @default 'medium'
+   */
+  size?: OverridableStringUnion<'small' | 'medium' | 'large', ButtonGroupPropsSizeOverrides>;
+  /**
+   * The variant to use.
+   * @default 'outlined'
+   */
+  variant?: OverridableStringUnion<
+    'text' | 'outlined' | 'contained',
+    ButtonGroupPropsVariantOverrides
+  >;
+  /**
+   * The system prop that allows defining system overrides as well as additional CSS styles.
+   */
+  sx?: SxProps<Theme>;
+}
+
+export interface ButtonGroupTypeMap<
+  AdditionalProps = {},
+  RootComponent extends React.ElementType = 'div',
+> {
+  props: AdditionalProps & ButtonGroupOwnProps;
+  defaultComponent: RootComponent;
+}
+
+/**
+ *
+ * Demos:
+ *
+ * - [Button Group](https://mui.com/material-ui/react-button-group/)
+ *
+ * API:
+ *
+ * - [ButtonGroup API](https://mui.com/material-ui/api/button-group/)
+ */
+declare const ButtonGroup: OverridableComponent<ButtonGroupTypeMap>;
+
+export type ButtonGroupProps<
+  RootComponent extends React.ElementType = ButtonGroupTypeMap['defaultComponent'],
+  AdditionalProps = {},
+> = OverrideProps<ButtonGroupTypeMap<AdditionalProps, RootComponent>, RootComponent> & {
+  component?: React.ElementType;
+};
+
+export default ButtonGroup;