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@material-ui/core

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React components that implement Google's Material Design.

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import _extends from "@babel/runtime/helpers/esm/extends"; import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose"; import * as React from 'react'; import PropTypes from 'prop-types'; import * as ReactDOM from 'react-dom'; import clsx from 'clsx'; import { elementTypeAcceptingRef, refType } from '@material-ui/utils'; import useForkRef from '../utils/useForkRef'; import useEventCallback from '../utils/useEventCallback'; import deprecatedPropType from '../utils/deprecatedPropType'; import withStyles from '../styles/withStyles'; import useIsFocusVisible from '../utils/useIsFocusVisible'; import TouchRipple from './TouchRipple'; export const styles = { /* Styles applied to the root element. */ root: { display: 'inline-flex', alignItems: 'center', justifyContent: 'center', position: 'relative', 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', '-moz-appearance': 'none', // Reset '-webkit-appearance': '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. }, '&$disabled': { pointerEvents: 'none', // Disable link interactions cursor: 'default' }, '@media print': { colorAdjust: 'exact' } }, /* Pseudo-class applied to the root element if `disabled={true}`. */ disabled: {}, /* Pseudo-class applied to the root element if keyboard focused. */ focusVisible: {} }; /** * `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(props, ref) { const { action, buttonRef: buttonRefProp, centerRipple = false, children, classes, className, component = 'button', disabled = false, disableRipple = false, disableTouchRipple = false, focusRipple = false, focusVisibleClassName, onBlur, onClick, onFocus, onFocusVisible, onKeyDown, onKeyUp, onMouseDown, onMouseLeave, onMouseUp, onTouchEnd, onTouchMove, onTouchStart, onDragLeave, tabIndex = 0, TouchRippleProps, type = 'button' } = props, other = _objectWithoutPropertiesLoose(props, ["action", "buttonRef", "centerRipple", "children", "classes", "className", "component", "disabled", "disableRipple", "disableTouchRipple", "focusRipple", "focusVisibleClassName", "onBlur", "onClick", "onFocus", "onFocusVisible", "onKeyDown", "onKeyUp", "onMouseDown", "onMouseLeave", "onMouseUp", "onTouchEnd", "onTouchMove", "onTouchStart", "onDragLeave", "tabIndex", "TouchRippleProps", "type"]); const buttonRef = React.useRef(null); function getButtonNode() { // #StrictMode ready return ReactDOM.findDOMNode(buttonRef.current); } const rippleRef = React.useRef(null); const [focusVisible, setFocusVisible] = React.useState(false); if (disabled && focusVisible) { setFocusVisible(false); } const { isFocusVisible, onBlurVisible, ref: focusVisibleRef } = useIsFocusVisible(); React.useImperativeHandle(action, () => ({ focusVisible: () => { setFocusVisible(true); buttonRef.current.focus(); } }), []); React.useEffect(() => { if (focusVisible && focusRipple && !disableRipple) { rippleRef.current.pulsate(); } }, [disableRipple, focusRipple, focusVisible]); 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 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 => { if (focusVisible) { onBlurVisible(event); 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; } if (isFocusVisible(event)) { setFocusVisible(true); if (onFocusVisible) { onFocusVisible(event); } } if (onFocus) { onFocus(event); } }); const isNonNativeButton = () => { const button = getButtonNode(); return component && component !== 'button' && !(button.tagName === 'A' && button.href); }; /** * IE 11 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; event.persist(); 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; event.persist(); 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) { ComponentProp = 'a'; } const buttonProps = {}; if (ComponentProp === 'button') { buttonProps.type = type; buttonProps.disabled = disabled; } else { if (ComponentProp !== 'a' || !other.href) { buttonProps.role = 'button'; } buttonProps['aria-disabled'] = disabled; } const handleUserRef = useForkRef(buttonRefProp, ref); const handleOwnRef = useForkRef(focusVisibleRef, buttonRef); const handleRef = useForkRef(handleUserRef, handleOwnRef); const [mountedState, setMountedState] = React.useState(false); React.useEffect(() => { setMountedState(true); }, []); const enableTouchRipple = mountedState && !disableRipple && !disabled; if (process.env.NODE_ENV !== 'production') { // eslint-disable-next-line react-hooks/rules-of-hooks React.useEffect(() => { if (enableTouchRipple && !rippleRef.current) { console.error(['Material-UI: The `component` prop provided to ButtonBase is invalid.', 'Please make sure the children prop is rendered in this custom component.'].join('\n')); } }, [enableTouchRipple]); } return /*#__PURE__*/React.createElement(ComponentProp, _extends({ className: clsx(classes.root, className, focusVisible && [classes.focusVisible, focusVisibleClassName], disabled && classes.disabled), onBlur: handleBlur, onClick: onClick, 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 }, buttonProps, other), children, enableTouchRipple ? /*#__PURE__*/ /* TouchRipple is only needed client-side, x2 boost on the server. */ React.createElement(TouchRipple, _extends({ ref: rippleRef, center: centerRipple }, TouchRippleProps)) : null); }); process.env.NODE_ENV !== "production" ? ButtonBase.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, /** * @ignore * * Use that prop to pass a ref to the native button component. * @deprecated Use `ref` instead. */ buttonRef: deprecatedPropType(refType, 'Use `ref` instead.'), /** * If `true`, the ripples will be centered. * They won't start at the cursor interaction position. */ centerRipple: PropTypes.bool, /** * The content of the component. */ children: PropTypes.node, /** * Override or extend the styles applied to the component. * See [CSS API](#css) below for more details. */ 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 base button will be disabled. */ disabled: PropTypes.bool, /** * If `true`, the ripple effect will be 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 `focusVisibleClassName`. */ disableRipple: PropTypes.bool, /** * If `true`, the touch ripple effect will be disabled. */ disableTouchRipple: PropTypes.bool, /** * If `true`, the base button will have a keyboard focus ripple. */ 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/master/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.string, /** * @ignore */ onBlur: PropTypes.func, /** * @ignore */ onClick: 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, /** * @ignore */ tabIndex: PropTypes.oneOfType([PropTypes.number, PropTypes.string]), /** * Props applied to the `TouchRipple` element. */ TouchRippleProps: PropTypes.object, /** * @ignore */ type: PropTypes.oneOfType([PropTypes.oneOf(['button', 'reset', 'submit']), PropTypes.string]) } : void 0; export default withStyles(styles, { name: 'MuiButtonBase' })(ButtonBase);