@mui/material/ButtonBase/ButtonBase.js

React components that implement Google's Material Design.

import _extends from "@babel/runtime/helpers/esm/extends";
import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
const _excluded = ["action", "centerRipple", "children", "className", "component", "disabled", "disableRipple", "disableTouchRipple", "focusRipple", "focusVisibleClassName", "LinkComponent", "onBlur", "onClick", "onContextMenu", "onDragLeave", "onFocus", "onFocusVisible", "onKeyDown", "onKeyUp", "onMouseDown", "onMouseLeave", "onMouseUp", "onTouchEnd", "onTouchMove", "onTouchStart", "tabIndex", "TouchRippleProps", "touchRippleRef", "type"];
import * as React from 'react';
import PropTypes from 'prop-types';
import clsx from 'clsx';
import { elementTypeAcceptingRef, refType } from '@mui/utils';
import composeClasses from '@mui/base/composeClasses';
import styled from '../styles/styled';
import useThemeProps from '../styles/useThemeProps';
import useForkRef from '../utils/useForkRef';
import useEventCallback from '../utils/useEventCallback';
import useIsFocusVisible from '../utils/useIsFocusVisible';
import TouchRipple from './TouchRipple';
import buttonBaseClasses, { getButtonBaseUtilityClass } from './buttonBaseClasses';
import { jsx as _jsx } from "react/jsx-runtime";
import { jsxs as _jsxs } from "react/jsx-runtime";
const useUtilityClasses = ownerState => {
  const {
    disabled,
    focusVisible,
    focusVisibleClassName,
    classes
  } = ownerState;
  const slots = {
    root: ['root', disabled && 'disabled', focusVisible && 'focusVisible']
  };
  const composedClasses = composeClasses(slots, getButtonBaseUtilityClass, classes);
  if (focusVisible && focusVisibleClassName) {
    composedClasses.root += ` ${focusVisibleClassName}`;
  }
  return composedClasses;
};
export const ButtonBaseRoot = styled('button', {
  name: 'MuiButtonBase',
  slot: 'Root',
  overridesResolver: (props, styles) => styles.root
})({
  display: 'inline-flex',
  alignItems: 'center',
  justifyContent: 'center',
  position: 'relative',
  boxSizing: 'border-box',
  WebkitTapHighlightColor: 'transparent',
  backgroundColor: 'transparent',
  // Reset default value
  // We disable the focus ring for mouse, touch and keyboard users.
  outline: 0,
  border: 0,
  margin: 0,
  // Remove the margin in Safari
  borderRadius: 0,
  padding: 0,
  // Remove the padding in Firefox
  cursor: 'pointer',
  userSelect: 'none',
  verticalAlign: 'middle',
  MozAppearance: 'none',
  // Reset
  WebkitAppearance: 'none',
  // Reset
  textDecoration: 'none',
  // So we take precedent over the style of a native <a /> element.
  color: 'inherit',
  '&::-moz-focus-inner': {
    borderStyle: 'none' // Remove Firefox dotted outline.
  },

  [`&.${buttonBaseClasses.disabled}`]: {
    pointerEvents: 'none',
    // Disable link interactions
    cursor: 'default'
  },
  '@media print': {
    colorAdjust: 'exact'
  }
});

/**
 * `ButtonBase` contains as few styles as possible.
 * It aims to be a simple building block for creating a button.
 * It contains a load of style reset and some focus/ripple logic.
 */
const ButtonBase = /*#__PURE__*/React.forwardRef(function ButtonBase(inProps, ref) {
  const props = useThemeProps({
    props: inProps,
    name: 'MuiButtonBase'
  });
  const {
      action,
      centerRipple = false,
      children,
      className,
      component = 'button',
      disabled = false,
      disableRipple = false,
      disableTouchRipple = false,
      focusRipple = false,
      LinkComponent = 'a',
      onBlur,
      onClick,
      onContextMenu,
      onDragLeave,
      onFocus,
      onFocusVisible,
      onKeyDown,
      onKeyUp,
      onMouseDown,
      onMouseLeave,
      onMouseUp,
      onTouchEnd,
      onTouchMove,
      onTouchStart,
      tabIndex = 0,
      TouchRippleProps,
      touchRippleRef,
      type
    } = props,
    other = _objectWithoutPropertiesLoose(props, _excluded);
  const buttonRef = React.useRef(null);
  const rippleRef = React.useRef(null);
  const handleRippleRef = useForkRef(rippleRef, touchRippleRef);
  const {
    isFocusVisibleRef,
    onFocus: handleFocusVisible,
    onBlur: handleBlurVisible,
    ref: focusVisibleRef
  } = useIsFocusVisible();
  const [focusVisible, setFocusVisible] = React.useState(false);
  if (disabled && focusVisible) {
    setFocusVisible(false);
  }
  React.useImperativeHandle(action, () => ({
    focusVisible: () => {
      setFocusVisible(true);
      buttonRef.current.focus();
    }
  }), []);
  const [mountedState, setMountedState] = React.useState(false);
  React.useEffect(() => {
    setMountedState(true);
  }, []);
  const enableTouchRipple = mountedState && !disableRipple && !disabled;
  React.useEffect(() => {
    if (focusVisible && focusRipple && !disableRipple && mountedState) {
      rippleRef.current.pulsate();
    }
  }, [disableRipple, focusRipple, focusVisible, mountedState]);
  function useRippleHandler(rippleAction, eventCallback, skipRippleAction = disableTouchRipple) {
    return useEventCallback(event => {
      if (eventCallback) {
        eventCallback(event);
      }
      const ignore = skipRippleAction;
      if (!ignore && rippleRef.current) {
        rippleRef.current[rippleAction](event);
      }
      return true;
    });
  }
  const handleMouseDown = useRippleHandler('start', onMouseDown);
  const handleContextMenu = useRippleHandler('stop', onContextMenu);
  const handleDragLeave = useRippleHandler('stop', onDragLeave);
  const handleMouseUp = useRippleHandler('stop', onMouseUp);
  const handleMouseLeave = useRippleHandler('stop', event => {
    if (focusVisible) {
      event.preventDefault();
    }
    if (onMouseLeave) {
      onMouseLeave(event);
    }
  });
  const handleTouchStart = useRippleHandler('start', onTouchStart);
  const handleTouchEnd = useRippleHandler('stop', onTouchEnd);
  const handleTouchMove = useRippleHandler('stop', onTouchMove);
  const handleBlur = useRippleHandler('stop', event => {
    handleBlurVisible(event);
    if (isFocusVisibleRef.current === false) {
      setFocusVisible(false);
    }
    if (onBlur) {
      onBlur(event);
    }
  }, false);
  const handleFocus = useEventCallback(event => {
    // Fix for https://github.com/facebook/react/issues/7769
    if (!buttonRef.current) {
      buttonRef.current = event.currentTarget;
    }
    handleFocusVisible(event);
    if (isFocusVisibleRef.current === true) {
      setFocusVisible(true);
      if (onFocusVisible) {
        onFocusVisible(event);
      }
    }
    if (onFocus) {
      onFocus(event);
    }
  });
  const isNonNativeButton = () => {
    const button = buttonRef.current;
    return component && component !== 'button' && !(button.tagName === 'A' && button.href);
  };

  /**
   * IE11 shim for https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/repeat
   */
  const keydownRef = React.useRef(false);
  const handleKeyDown = useEventCallback(event => {
    // Check if key is already down to avoid repeats being counted as multiple activations
    if (focusRipple && !keydownRef.current && focusVisible && rippleRef.current && event.key === ' ') {
      keydownRef.current = true;
      rippleRef.current.stop(event, () => {
        rippleRef.current.start(event);
      });
    }
    if (event.target === event.currentTarget && isNonNativeButton() && event.key === ' ') {
      event.preventDefault();
    }
    if (onKeyDown) {
      onKeyDown(event);
    }

    // Keyboard accessibility for non interactive elements
    if (event.target === event.currentTarget && isNonNativeButton() && event.key === 'Enter' && !disabled) {
      event.preventDefault();
      if (onClick) {
        onClick(event);
      }
    }
  });
  const handleKeyUp = useEventCallback(event => {
    // calling preventDefault in keyUp on a <button> will not dispatch a click event if Space is pressed
    // https://codesandbox.io/s/button-keyup-preventdefault-dn7f0
    if (focusRipple && event.key === ' ' && rippleRef.current && focusVisible && !event.defaultPrevented) {
      keydownRef.current = false;
      rippleRef.current.stop(event, () => {
        rippleRef.current.pulsate(event);
      });
    }
    if (onKeyUp) {
      onKeyUp(event);
    }

    // Keyboard accessibility for non interactive elements
    if (onClick && event.target === event.currentTarget && isNonNativeButton() && event.key === ' ' && !event.defaultPrevented) {
      onClick(event);
    }
  });
  let ComponentProp = component;
  if (ComponentProp === 'button' && (other.href || other.to)) {
    ComponentProp = LinkComponent;
  }
  const buttonProps = {};
  if (ComponentProp === 'button') {
    buttonProps.type = type === undefined ? 'button' : type;
    buttonProps.disabled = disabled;
  } else {
    if (!other.href && !other.to) {
      buttonProps.role = 'button';
    }
    if (disabled) {
      buttonProps['aria-disabled'] = disabled;
    }
  }
  const handleRef = useForkRef(ref, focusVisibleRef, buttonRef);
  if (process.env.NODE_ENV !== 'production') {
    // eslint-disable-next-line react-hooks/rules-of-hooks
    React.useEffect(() => {
      if (enableTouchRipple && !rippleRef.current) {
        console.error(['MUI: The `component` prop provided to ButtonBase is invalid.', 'Please make sure the children prop is rendered in this custom component.'].join('\n'));
      }
    }, [enableTouchRipple]);
  }
  const ownerState = _extends({}, props, {
    centerRipple,
    component,
    disabled,
    disableRipple,
    disableTouchRipple,
    focusRipple,
    tabIndex,
    focusVisible
  });
  const classes = useUtilityClasses(ownerState);
  return /*#__PURE__*/_jsxs(ButtonBaseRoot, _extends({
    as: ComponentProp,
    className: clsx(classes.root, className),
    ownerState: ownerState,
    onBlur: handleBlur,
    onClick: onClick,
    onContextMenu: handleContextMenu,
    onFocus: handleFocus,
    onKeyDown: handleKeyDown,
    onKeyUp: handleKeyUp,
    onMouseDown: handleMouseDown,
    onMouseLeave: handleMouseLeave,
    onMouseUp: handleMouseUp,
    onDragLeave: handleDragLeave,
    onTouchEnd: handleTouchEnd,
    onTouchMove: handleTouchMove,
    onTouchStart: handleTouchStart,
    ref: handleRef,
    tabIndex: disabled ? -1 : tabIndex,
    type: type
  }, buttonProps, other, {
    children: [children, enableTouchRipple ?
    /*#__PURE__*/
    /* TouchRipple is only needed client-side, x2 boost on the server. */
    _jsx(TouchRipple, _extends({
      ref: handleRippleRef,
      center: centerRipple
    }, TouchRippleProps)) : null]
  }));
});
process.env.NODE_ENV !== "production" ? ButtonBase.propTypes /* remove-proptypes */ = {
  // ----------------------------- Warning --------------------------------
  // | These PropTypes are generated from the TypeScript type definitions |
  // |     To update them edit the d.ts file and run "yarn proptypes"     |
  // ----------------------------------------------------------------------
  /**
   * A ref for imperative actions.
   * It currently only supports `focusVisible()` action.
   */
  action: refType,
  /**
   * If `true`, the ripples are centered.
   * They won't start at the cursor interaction position.
   * @default false
   */
  centerRipple: PropTypes.bool,
  /**
   * The content of the component.
   */
  children: PropTypes.node,
  /**
   * Override or extend the styles applied to the component.
   */
  classes: PropTypes.object,
  /**
   * @ignore
   */
  className: PropTypes.string,
  /**
   * The component used for the root node.
   * Either a string to use a HTML element or a component.
   */
  component: elementTypeAcceptingRef,
  /**
   * If `true`, the component is disabled.
   * @default false
   */
  disabled: PropTypes.bool,
  /**
   * If `true`, the ripple effect is disabled.
   *
   * ⚠️ Without a ripple there is no styling for :focus-visible by default. Be sure
   * to highlight the element by applying separate styles with the `.Mui-focusVisible` class.
   * @default false
   */
  disableRipple: PropTypes.bool,
  /**
   * If `true`, the touch ripple effect is disabled.
   * @default false
   */
  disableTouchRipple: PropTypes.bool,
  /**
   * If `true`, the base button will have a keyboard focus ripple.
   * @default false
   */
  focusRipple: PropTypes.bool,
  /**
   * This prop can help identify which element has keyboard focus.
   * The class name will be applied when the element gains the focus through keyboard interaction.
   * It's a polyfill for the [CSS :focus-visible selector](https://drafts.csswg.org/selectors-4/#the-focus-visible-pseudo).
   * The rationale for using this feature [is explained here](https://github.com/WICG/focus-visible/blob/HEAD/explainer.md).
   * A [polyfill can be used](https://github.com/WICG/focus-visible) to apply a `focus-visible` class to other components
   * if needed.
   */
  focusVisibleClassName: PropTypes.string,
  /**
   * @ignore
   */
  href: PropTypes /* @typescript-to-proptypes-ignore */.any,
  /**
   * The component used to render a link when the `href` prop is provided.
   * @default 'a'
   */
  LinkComponent: PropTypes.elementType,
  /**
   * @ignore
   */
  onBlur: PropTypes.func,
  /**
   * @ignore
   */
  onClick: PropTypes.func,
  /**
   * @ignore
   */
  onContextMenu: PropTypes.func,
  /**
   * @ignore
   */
  onDragLeave: PropTypes.func,
  /**
   * @ignore
   */
  onFocus: PropTypes.func,
  /**
   * Callback fired when the component is focused with a keyboard.
   * We trigger a `onFocus` callback too.
   */
  onFocusVisible: PropTypes.func,
  /**
   * @ignore
   */
  onKeyDown: PropTypes.func,
  /**
   * @ignore
   */
  onKeyUp: PropTypes.func,
  /**
   * @ignore
   */
  onMouseDown: PropTypes.func,
  /**
   * @ignore
   */
  onMouseLeave: PropTypes.func,
  /**
   * @ignore
   */
  onMouseUp: PropTypes.func,
  /**
   * @ignore
   */
  onTouchEnd: PropTypes.func,
  /**
   * @ignore
   */
  onTouchMove: PropTypes.func,
  /**
   * @ignore
   */
  onTouchStart: PropTypes.func,
  /**
   * The system prop that allows defining system overrides as well as additional CSS styles.
   */
  sx: PropTypes.oneOfType([PropTypes.arrayOf(PropTypes.oneOfType([PropTypes.func, PropTypes.object, PropTypes.bool])), PropTypes.func, PropTypes.object]),
  /**
   * @default 0
   */
  tabIndex: PropTypes.number,
  /**
   * Props applied to the `TouchRipple` element.
   */
  TouchRippleProps: PropTypes.object,
  /**
   * A ref that points to the `TouchRipple` element.
   */
  touchRippleRef: PropTypes.oneOfType([PropTypes.func, PropTypes.shape({
    current: PropTypes.shape({
      pulsate: PropTypes.func.isRequired,
      start: PropTypes.func.isRequired,
      stop: PropTypes.func.isRequired
    })
  })]),
  /**
   * @ignore
   */
  type: PropTypes.oneOfType([PropTypes.oneOf(['button', 'reset', 'submit']), PropTypes.string])
} : void 0;
export default ButtonBase;