[core] Remove @mui/utils and @mui/types dependencies

docs/package.json

@@ -26,7 +26,6 @@
     "@mdx-js/mdx": "^3.1.0",
     "@mdx-js/react": "^3.1.0",
     "@mui/system": "6.1.8",
-    "@mui/utils": "6.1.8",
     "@next/mdx": "^15.0.2",
     "@react-spring/web": "^9.7.5",
     "@stefanprobst/rehype-extract-toc": "^2.2.0",

docs/src/app/experiments/dialog.tsx

@@ -2,8 +2,7 @@
 import * as React from 'react';
 import clsx from 'clsx';
 import { Dialog } from '@base-ui-components/react/dialog';
-// eslint-disable-next-line no-restricted-imports
-import { useTransitionStatus } from '@base-ui-components/react/utils/useTransitionStatus';
+import { useTransitionStatus } from '@base-ui-components/react/utils';
 import {
   animated as springAnimated,
   useSpring,

docs/src/blocks/GoogleAnalytics.tsx

@@ -1,7 +1,7 @@
 'use client';
 import * as React from 'react';
 import { useMediaQuery } from '@base-ui-components/react/use-media-query';
-import useEnhancedEffect from '@mui/utils/useEnhancedEffect';
+import { useEnhancedEffect } from '@base-ui-components/react/utils';
 
 let boundDataGaListener = false;
 

docs/src/blocks/PackageManagerSnippet/PackageManagerSnippetProvider.tsx

@@ -1,6 +1,5 @@
 'use client';
-// eslint-disable-next-line no-restricted-imports
-import { useEnhancedEffect } from '@base-ui-components/react/utils/useEnhancedEffect';
+import { useEnhancedEffect } from '@base-ui-components/react/utils';
 import * as React from 'react';
 
 export interface PackageManagerSnippetContext {

docs/src/blocks/PackageManagerSnippet/PackageManagerSnippetRoot.tsx

@@ -1,8 +1,7 @@
 'use client';
 import * as React from 'react';
 import { Tabs } from '@base-ui-components/react/tabs';
-// eslint-disable-next-line no-restricted-imports
-import { useEnhancedEffect } from '@base-ui-components/react/utils/useEnhancedEffect';
+import { useEnhancedEffect } from '@base-ui-components/react/utils';
 import { usePackageManagerSnippetContext } from './PackageManagerSnippetProvider';
 
 export function PackageManagerSnippetRoot(props: PackageManagerSnippetRoot.Props) {

docs/src/components/demo/DemoVariantSelectorProvider.tsx

@@ -1,7 +1,6 @@
 'use client';
 import * as React from 'react';
-// eslint-disable-next-line no-restricted-imports
-import { useEnhancedEffect } from '@base-ui-components/react/utils/useEnhancedEffect';
+import { useEnhancedEffect } from '@base-ui-components/react/utils';
 
 export interface DemoVariantSelectorContext {
   selectedVariant: string;

docs/src/design-system/ToggleButtonGroup.tsx

@@ -1,7 +1,6 @@
 import * as React from 'react';
 import clsx from 'clsx';
-// eslint-disable-next-line no-restricted-imports
-import { useControlled } from '@base-ui-components/react/utils/useControlled';
+import { useControlled } from '@base-ui-components/react/utils';
 import classes from './ToggleButtonGroup.module.css';
 
 export interface ToggleButtonGroupProps<Option extends { value: string; label: string }>

package.json

@@ -79,7 +79,6 @@
     "@mui/internal-scripts": "^1.0.27",
     "@mui/internal-test-utils": "https://pkg.csb.dev/mui/material-ui/commit/92c23999/@mui/internal-test-utils",
     "@mui/monorepo": "github:mui/material-ui#v6.1.7",
-    "@mui/utils": "6.1.8",
     "@next/eslint-plugin-next": "^14.2.17",
     "@octokit/rest": "^20.1.1",
     "@playwright/test": "1.49.0",

packages/react/package.json

@@ -29,6 +29,9 @@
     ".": {
       "import": "./src/index.ts"
     },
+    "./utils": {
+      "import": "./src/utils/index.ts"
+    },
     "./*": {
       "import": "./src/*/index.ts"
     }
@@ -54,8 +57,6 @@
     "@floating-ui/react": "^0.26.28",
     "@floating-ui/react-dom": "^2.1.2",
     "@floating-ui/utils": "^0.2.8",
-    "@mui/types": "^7.2.19",
-    "@mui/utils": "^6.1.8",
     "clsx": "^2.1.1",
     "prop-types": "^15.8.1",
     "use-sync-external-store": "^1.2.2"

packages/react/src/menu/trigger/useMenuTrigger.ts

@@ -1,8 +1,8 @@
 'use client';
 import * as React from 'react';
-import { unstable_useForkRef as useForkRef } from '@mui/utils';
 import { FloatingEvents } from '@floating-ui/react';
 import { useButton } from '../../use-button/useButton';
+import { useForkRef } from '../../utils/useForkRef';
 import { GenericHTMLProps } from '../../utils/types';
 import { mergeReactProps } from '../../utils/mergeReactProps';
 import { ownerDocument } from '../../utils/owner';

packages/react/src/no-ssr/NoSsr.tsx

@@ -1,7 +1,8 @@
 'use client';
 import * as React from 'react';
 import PropTypes from 'prop-types';
-import { exactProp, unstable_useEnhancedEffect as useEnhancedEffect } from '@mui/utils';
+import { useEnhancedEffect } from '../utils/useEnhancedEffect';
+import { exactProp } from '../utils/proptypes';
 import { NoSsrProps } from './NoSsr.types';
 
 /**

packages/react/src/scroll-area/viewport/useScrollAreaViewport.tsx

@@ -3,6 +3,7 @@ import { useScrollAreaRootContext } from '../root/ScrollAreaRootContext';
 import { useEventCallback } from '../../utils/useEventCallback';
 import { useEnhancedEffect } from '../../utils/useEnhancedEffect';
 import { mergeReactProps } from '../../utils/mergeReactProps';
+import { clamp } from '../../utils/clamp';
 import { MIN_THUMB_SIZE } from '../constants';
 
 export function useScrollAreaViewport(params: useScrollAreaViewport.Parameters) {
@@ -98,9 +99,6 @@ export function useScrollAreaViewport(params: useScrollAreaViewport.Parameters)
         scrollbarXEl.offsetWidth - clampedNextWidth - (paddingLeft + paddingRight);
       const scrollRatioX = scrollLeft / (scrollableContentWidth - viewportWidth);
 
-      const clamp = (value: number, min: number, max: number) =>
-        Math.min(Math.max(value, min), max);
-
       // In Safari, don't allow it to go negative or too far as `scrollLeft` considers the rubber
       // band effect.
       const thumbOffsetX =

packages/react/src/switch/root/SwitchRoot.tsx

@@ -1,14 +1,14 @@
 'use client';
 import * as React from 'react';
 import PropTypes from 'prop-types';
-import refType from '@mui/utils/refType';
 import { useSwitchRoot } from './useSwitchRoot';
 import { SwitchRootContext } from './SwitchRootContext';
 import { styleHookMapping } from '../styleHooks';
 import { useComponentRenderer } from '../../utils/useComponentRenderer';
 import type { FieldRoot } from '../../field/root/FieldRoot';
 import { useFieldRootContext } from '../../field/root/FieldRootContext';
 import type { BaseUIComponentProps } from '../../utils/types';
+import { refType } from '../../utils/proptypes';
 
 /**
  * The foundation for building custom-styled switches.

packages/react/src/utils/clamp.test.ts

@@ -0,0 +1,10 @@
+import { expect } from 'chai';
+import { clamp } from './clamp';
+
+describe('clamp', () => {
+  it('clamps a value based on min and max', () => {
+    expect(clamp(1, 2, 4)).to.equal(2);
+    expect(clamp(5, 2, 4)).to.equal(4);
+    expect(clamp(-5, -1, 5)).to.equal(-1);
+  });
+});

packages/react/src/utils/clamp.ts

@@ -1 +1,7 @@
-export { default as clamp } from '@mui/utils/clamp';
+export function clamp(
+  val: number,
+  min: number = Number.MIN_SAFE_INTEGER,
+  max: number = Number.MAX_SAFE_INTEGER,
+): number {
+  return Math.max(min, Math.min(val, max));
+}

packages/react/src/utils/getReactElementRef.test.tsx

@@ -0,0 +1,39 @@
+import * as React from 'react';
+import { expect } from 'chai';
+import { getReactElementRef } from '@base-ui-components/react/utils';
+
+describe('getReactElementRef', () => {
+  it('should return undefined when not used correctly', () => {
+    // @ts-expect-error
+    expect(getReactElementRef(false)).to.equal(null);
+    // @ts-expect-error
+    expect(getReactElementRef()).to.equal(null);
+    // @ts-expect-error
+    expect(getReactElementRef(1)).to.equal(null);
+
+    const children = [<div key="1" />, <div key="2" />];
+    // @ts-expect-error
+    expect(getReactElementRef(children)).to.equal(null);
+  });
+
+  it('should return the ref of a React element', () => {
+    const ref = React.createRef<HTMLDivElement>();
+    const element = <div ref={ref} />;
+    expect(getReactElementRef(element)).to.equal(ref);
+  });
+
+  it('should return null for a fragment', () => {
+    const element = (
+      <React.Fragment>
+        <p>Hello</p>
+        <p>Hello</p>
+      </React.Fragment>
+    );
+    expect(getReactElementRef(element)).to.equal(null);
+  });
+
+  it('should return null for element with no ref', () => {
+    const element = <div />;
+    expect(getReactElementRef(element)).to.equal(null);
+  });
+});

packages/react/src/utils/getReactElementRef.ts

@@ -0,0 +1,18 @@
+import * as React from 'react';
+
+/**
+ * Returns the ref of a React element handling differences between React 19 and older versions.
+ * It will throw runtime error if the element is not a valid React element.
+ *
+ * @param element React.ReactElement
+ * @returns React.Ref<any> | null
+ */
+export function getReactElementRef(element: React.ReactElement): React.Ref<any> | null {
+  // 'ref' is passed as prop in React 19, whereas 'ref' is directly attached to children in older versions
+  if (parseInt(React.version, 10) >= 19) {
+    return (element?.props as any)?.ref || null;
+  }
+  // @ts-expect-error element.ref is not included in the ReactElement type
+  // https://github.com/DefinitelyTyped/DefinitelyTyped/discussions/70189
+  return element?.ref || null;
+}

packages/react/src/utils/index.ts

@@ -1,7 +1,11 @@
 // Public utils
 
-export * from './prepareForSlot';
+export * from './getReactElementRef';
 export * from './MuiCancellableEvent';
+export * from './useControlled';
+export * from './useEnhancedEffect';
+export * from './useForkRef';
+export * from './useId';
 export * from './useScrollLock';
 export * from './useTransitionStatus';
 export * from './visuallyHidden';

packages/react/src/utils/owner.ts

@@ -1,2 +1,8 @@
-export { default as ownerDocument } from '@mui/utils/ownerDocument';
-export { default as ownerWindow } from '@mui/utils/ownerWindow';
+export function ownerDocument(node: Node | null | undefined): Document {
+  return (node && node.ownerDocument) || document;
+}
+
+export function ownerWindow(node: Node | undefined): Window {
+  const doc = ownerDocument(node);
+  return doc.defaultView || window;
+}

packages/react/src/utils/proptypes.test.ts

@@ -0,0 +1,35 @@
+import { expect } from 'chai';
+import PropTypes from 'prop-types';
+import { exactProp } from './proptypes';
+
+describe('exactProp()', () => {
+  beforeEach(() => {
+    PropTypes.resetWarningCache();
+  });
+
+  it('should return null for supported props', () => {
+    const props = {
+      bar: false,
+    };
+    const propTypes = {
+      bar: PropTypes.bool,
+    };
+
+    expect(() => {
+      PropTypes.checkPropTypes(exactProp(propTypes), props, 'props', 'Component');
+    }).not.toErrorDev();
+  });
+
+  it('should return an error for unsupported props', () => {
+    const props = {
+      foo: false,
+    };
+    const propTypes = {
+      bar: PropTypes.bool,
+    };
+
+    expect(() => {
+      PropTypes.checkPropTypes(exactProp(propTypes), props, 'props', 'Component');
+    }).toErrorDev('The following props are not supported: `foo`. Please remove them');
+  });
+});

packages/react/src/utils/proptypes.ts

@@ -1,2 +1,57 @@
-export { default as refType } from '@mui/utils/refType';
-export { default as HTMLElementType } from '@mui/utils/HTMLElementType';
+import PropTypes, { ValidationMap } from 'prop-types';
+
+export const refType = PropTypes.oneOfType([PropTypes.func, PropTypes.object]);
+
+export function HTMLElementType(
+  props: { [key: string]: unknown },
+  propName: string,
+  componentName: string,
+  location: string,
+  propFullName: string,
+): Error | null {
+  if (process.env.NODE_ENV === 'production') {
+    return null;
+  }
+
+  const propValue = props[propName];
+  const safePropName = propFullName || propName;
+
+  if (propValue == null) {
+    return null;
+  }
+
+  if (propValue && (propValue as any).nodeType !== 1) {
+    return new Error(
+      `Invalid ${location} \`${safePropName}\` supplied to \`${componentName}\`. ` +
+        `Expected an HTMLElement.`,
+    );
+  }
+
+  return null;
+}
+
+const specialProperty = 'exact-prop: \u200b';
+
+// This module is based on https://github.com/airbnb/prop-types-exact repository.
+// However, in order to reduce the number of dependencies and to remove some extra safe checks
+// the module was forked.
+export function exactProp<T>(propTypes: ValidationMap<T>): ValidationMap<T> {
+  if (process.env.NODE_ENV === 'production') {
+    return propTypes;
+  }
+
+  return {
+    ...propTypes,
+    [specialProperty]: (props: { [key: string]: unknown }) => {
+      const unsupportedProps = Object.keys(props).filter((prop) => !propTypes.hasOwnProperty(prop));
+      if (unsupportedProps.length > 0) {
+        return new Error(
+          `The following props are not supported: ${unsupportedProps
+            .map((prop) => `\`${prop}\``)
+            .join(', ')}. Please remove them.`,
+        );
+      }
+      return null;
+    },
+  };
+}

packages/react/src/utils/types.ts

@@ -54,3 +54,9 @@ export type BaseUIComponentProps<
     | ComponentRenderFn<RenderFunctionProps, State>
     | React.ReactElement<Record<string, unknown>>;
 };
+
+/**
+ * Simplifies the display of a type (without modifying it).
+ * Taken from https://effectivetypescript.com/2022/02/25/gentips-4-display/
+ */
+export type Simplify<T> = T extends Function ? T : { [K in keyof T]: T[K] };