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1 line
22 KiB
JSON
{"ast":null,"code":"/* eslint-disable consistent-return, jsx-a11y/no-noninteractive-tabindex, camelcase */\nimport * as React from 'react';\nimport * as ReactDOM from 'react-dom';\nimport PropTypes from 'prop-types';\nimport ownerDocument from '../utils/ownerDocument';\nimport useForkRef from '../utils/useForkRef';\nimport { exactProp } from '@material-ui/utils';\n/**\n * Utility component that locks focus inside the component.\n */\n\nfunction Unstable_TrapFocus(props) {\n var children = props.children,\n _props$disableAutoFoc = props.disableAutoFocus,\n disableAutoFocus = _props$disableAutoFoc === void 0 ? false : _props$disableAutoFoc,\n _props$disableEnforce = props.disableEnforceFocus,\n disableEnforceFocus = _props$disableEnforce === void 0 ? false : _props$disableEnforce,\n _props$disableRestore = props.disableRestoreFocus,\n disableRestoreFocus = _props$disableRestore === void 0 ? false : _props$disableRestore,\n getDoc = props.getDoc,\n isEnabled = props.isEnabled,\n open = props.open;\n var ignoreNextEnforceFocus = React.useRef();\n var sentinelStart = React.useRef(null);\n var sentinelEnd = React.useRef(null);\n var nodeToRestore = React.useRef();\n var rootRef = React.useRef(null); // can be removed once we drop support for non ref forwarding class components\n\n var handleOwnRef = React.useCallback(function (instance) {\n // #StrictMode ready\n rootRef.current = ReactDOM.findDOMNode(instance);\n }, []);\n var handleRef = useForkRef(children.ref, handleOwnRef);\n var prevOpenRef = React.useRef();\n React.useEffect(function () {\n prevOpenRef.current = open;\n }, [open]);\n\n if (!prevOpenRef.current && open && typeof window !== 'undefined') {\n // WARNING: Potentially unsafe in concurrent mode.\n // The way the read on `nodeToRestore` is setup could make this actually safe.\n // Say we render `open={false}` -> `open={true}` but never commit.\n // We have now written a state that wasn't committed. But no committed effect\n // will read this wrong value. We only read from `nodeToRestore` in effects\n // that were committed on `open={true}`\n // WARNING: Prevents the instance from being garbage collected. Should only\n // hold a weak ref.\n nodeToRestore.current = getDoc().activeElement;\n }\n\n React.useEffect(function () {\n if (!open) {\n return;\n }\n\n var doc = ownerDocument(rootRef.current); // We might render an empty child.\n\n if (!disableAutoFocus && rootRef.current && !rootRef.current.contains(doc.activeElement)) {\n if (!rootRef.current.hasAttribute('tabIndex')) {\n if (process.env.NODE_ENV !== 'production') {\n console.error(['Material-UI: The modal content node does not accept focus.', 'For the benefit of assistive technologies, ' + 'the tabIndex of the node is being set to \"-1\".'].join('\\n'));\n }\n\n rootRef.current.setAttribute('tabIndex', -1);\n }\n\n rootRef.current.focus();\n }\n\n var contain = function contain() {\n var rootElement = rootRef.current; // Cleanup functions are executed lazily in React 17.\n // Contain can be called between the component being unmounted and its cleanup function being run.\n\n if (rootElement === null) {\n return;\n }\n\n if (!doc.hasFocus() || disableEnforceFocus || !isEnabled() || ignoreNextEnforceFocus.current) {\n ignoreNextEnforceFocus.current = false;\n return;\n }\n\n if (rootRef.current && !rootRef.current.contains(doc.activeElement)) {\n rootRef.current.focus();\n }\n };\n\n var loopFocus = function loopFocus(event) {\n // 9 = Tab\n if (disableEnforceFocus || !isEnabled() || event.keyCode !== 9) {\n return;\n } // Make sure the next tab starts from the right place.\n\n\n if (doc.activeElement === rootRef.current) {\n // We need to ignore the next contain as\n // it will try to move the focus back to the rootRef element.\n ignoreNextEnforceFocus.current = true;\n\n if (event.shiftKey) {\n sentinelEnd.current.focus();\n } else {\n sentinelStart.current.focus();\n }\n }\n };\n\n doc.addEventListener('focus', contain, true);\n doc.addEventListener('keydown', loopFocus, true); // With Edge, Safari and Firefox, no focus related events are fired when the focused area stops being a focused area\n // e.g. https://bugzilla.mozilla.org/show_bug.cgi?id=559561.\n //\n // The whatwg spec defines how the browser should behave but does not explicitly mention any events:\n // https://html.spec.whatwg.org/multipage/interaction.html#focus-fixup-rule.\n\n var interval = setInterval(function () {\n contain();\n }, 50);\n return function () {\n clearInterval(interval);\n doc.removeEventListener('focus', contain, true);\n doc.removeEventListener('keydown', loopFocus, true); // restoreLastFocus()\n\n if (!disableRestoreFocus) {\n // In IE 11 it is possible for document.activeElement to be null resulting\n // in nodeToRestore.current being null.\n // Not all elements in IE 11 have a focus method.\n // Once IE 11 support is dropped the focus() call can be unconditional.\n if (nodeToRestore.current && nodeToRestore.current.focus) {\n nodeToRestore.current.focus();\n }\n\n nodeToRestore.current = null;\n }\n };\n }, [disableAutoFocus, disableEnforceFocus, disableRestoreFocus, isEnabled, open]);\n return /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement(\"div\", {\n tabIndex: 0,\n ref: sentinelStart,\n \"data-test\": \"sentinelStart\"\n }), /*#__PURE__*/React.cloneElement(children, {\n ref: handleRef\n }), /*#__PURE__*/React.createElement(\"div\", {\n tabIndex: 0,\n ref: sentinelEnd,\n \"data-test\": \"sentinelEnd\"\n }));\n}\n\nprocess.env.NODE_ENV !== \"production\" ? Unstable_TrapFocus.propTypes = {\n // ----------------------------- Warning --------------------------------\n // | These PropTypes are generated from the TypeScript type definitions |\n // | To update them edit the d.ts file and run \"yarn proptypes\" |\n // ----------------------------------------------------------------------\n\n /**\n * A single child content element.\n */\n children: PropTypes.node,\n\n /**\n * If `true`, the trap focus will not automatically shift focus to itself when it opens, and\n * replace it to the last focused element when it closes.\n * This also works correctly with any trap focus children that have the `disableAutoFocus` prop.\n *\n * Generally this should never be set to `true` as it makes the trap focus less\n * accessible to assistive technologies, like screen readers.\n */\n disableAutoFocus: PropTypes.bool,\n\n /**\n * If `true`, the trap focus will not prevent focus from leaving the trap focus while open.\n *\n * Generally this should never be set to `true` as it makes the trap focus less\n * accessible to assistive technologies, like screen readers.\n */\n disableEnforceFocus: PropTypes.bool,\n\n /**\n * If `true`, the trap focus will not restore focus to previously focused element once\n * trap focus is hidden.\n */\n disableRestoreFocus: PropTypes.bool,\n\n /**\n * Return the document to consider.\n * We use it to implement the restore focus between different browser documents.\n */\n getDoc: PropTypes.func.isRequired,\n\n /**\n * Do we still want to enforce the focus?\n * This prop helps nesting TrapFocus elements.\n */\n isEnabled: PropTypes.func.isRequired,\n\n /**\n * If `true`, focus will be locked.\n */\n open: PropTypes.bool.isRequired\n} : void 0;\n\nif (process.env.NODE_ENV !== 'production') {\n // eslint-disable-next-line\n Unstable_TrapFocus['propTypes' + ''] = exactProp(Unstable_TrapFocus.propTypes);\n}\n\nexport default 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eslint-disable consistent-return, jsx-a11y/no-noninteractive-tabindex, camelcase */\nimport * as React from 'react';\nimport * as ReactDOM from 'react-dom';\nimport PropTypes from 'prop-types';\nimport ownerDocument from '../utils/ownerDocument';\nimport useForkRef from '../utils/useForkRef';\nimport { exactProp } from '@material-ui/utils';\n/**\n * Utility component that locks focus inside the component.\n */\n\nfunction Unstable_TrapFocus(props) {\n var children = props.children,\n _props$disableAutoFoc = props.disableAutoFocus,\n disableAutoFocus = _props$disableAutoFoc === void 0 ? false : _props$disableAutoFoc,\n _props$disableEnforce = props.disableEnforceFocus,\n disableEnforceFocus = _props$disableEnforce === void 0 ? false : _props$disableEnforce,\n _props$disableRestore = props.disableRestoreFocus,\n disableRestoreFocus = _props$disableRestore === void 0 ? false : _props$disableRestore,\n getDoc = props.getDoc,\n isEnabled = props.isEnabled,\n open = props.open;\n var ignoreNextEnforceFocus = React.useRef();\n var sentinelStart = React.useRef(null);\n var sentinelEnd = React.useRef(null);\n var nodeToRestore = React.useRef();\n var rootRef = React.useRef(null); // can be removed once we drop support for non ref forwarding class components\n\n var handleOwnRef = React.useCallback(function (instance) {\n // #StrictMode ready\n rootRef.current = ReactDOM.findDOMNode(instance);\n }, []);\n var handleRef = useForkRef(children.ref, handleOwnRef);\n var prevOpenRef = React.useRef();\n React.useEffect(function () {\n prevOpenRef.current = open;\n }, [open]);\n\n if (!prevOpenRef.current && open && typeof window !== 'undefined') {\n // WARNING: Potentially unsafe in concurrent mode.\n // The way the read on `nodeToRestore` is setup could make this actually safe.\n // Say we render `open={false}` -> `open={true}` but never commit.\n // We have now written a state that wasn't committed. But no committed effect\n // will read this wrong value. We only read from `nodeToRestore` in effects\n // that were committed on `open={true}`\n // WARNING: Prevents the instance from being garbage collected. Should only\n // hold a weak ref.\n nodeToRestore.current = getDoc().activeElement;\n }\n\n React.useEffect(function () {\n if (!open) {\n return;\n }\n\n var doc = ownerDocument(rootRef.current); // We might render an empty child.\n\n if (!disableAutoFocus && rootRef.current && !rootRef.current.contains(doc.activeElement)) {\n if (!rootRef.current.hasAttribute('tabIndex')) {\n if (process.env.NODE_ENV !== 'production') {\n console.error(['Material-UI: The modal content node does not accept focus.', 'For the benefit of assistive technologies, ' + 'the tabIndex of the node is being set to \"-1\".'].join('\\n'));\n }\n\n rootRef.current.setAttribute('tabIndex', -1);\n }\n\n rootRef.current.focus();\n }\n\n var contain = function contain() {\n var rootElement = rootRef.current; // Cleanup functions are executed lazily in React 17.\n // Contain can be called between the component being unmounted and its cleanup function being run.\n\n if (rootElement === null) {\n return;\n }\n\n if (!doc.hasFocus() || disableEnforceFocus || !isEnabled() || ignoreNextEnforceFocus.current) {\n ignoreNextEnforceFocus.current = false;\n return;\n }\n\n if (rootRef.current && !rootRef.current.contains(doc.activeElement)) {\n rootRef.current.focus();\n }\n };\n\n var loopFocus = function loopFocus(event) {\n // 9 = Tab\n if (disableEnforceFocus || !isEnabled() || event.keyCode !== 9) {\n return;\n } // Make sure the next tab starts from the right place.\n\n\n if (doc.activeElement === rootRef.current) {\n // We need to ignore the next contain as\n // it will try to move the focus back to the rootRef element.\n ignoreNextEnforceFocus.current = true;\n\n if (event.shiftKey) {\n sentinelEnd.current.focus();\n } else {\n sentinelStart.current.focus();\n }\n }\n };\n\n doc.addEventListener('focus', contain, true);\n doc.addEventListener('keydown', loopFocus, true); // With Edge, Safari and Firefox, no focus related events are fired when the focused area stops being a focused area\n // e.g. https://bugzilla.mozilla.org/show_bug.cgi?id=559561.\n //\n // The whatwg spec defines how the browser should behave but does not explicitly mention any events:\n // https://html.spec.whatwg.org/multipage/interaction.html#focus-fixup-rule.\n\n var interval = setInterval(function () {\n contain();\n }, 50);\n return function () {\n clearInterval(interval);\n doc.removeEventListener('focus', contain, true);\n doc.removeEventListener('keydown', loopFocus, true); // restoreLastFocus()\n\n if (!disableRestoreFocus) {\n // In IE 11 it is possible for document.activeElement to be null resulting\n // in nodeToRestore.current being null.\n // Not all elements in IE 11 have a focus method.\n // Once IE 11 support is dropped the focus() call can be unconditional.\n if (nodeToRestore.current && nodeToRestore.current.focus) {\n nodeToRestore.current.focus();\n }\n\n nodeToRestore.current = null;\n }\n };\n }, [disableAutoFocus, disableEnforceFocus, disableRestoreFocus, isEnabled, open]);\n return /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement(\"div\", {\n tabIndex: 0,\n ref: sentinelStart,\n \"data-test\": \"sentinelStart\"\n }), /*#__PURE__*/React.cloneElement(children, {\n ref: handleRef\n }), /*#__PURE__*/React.createElement(\"div\", {\n tabIndex: 0,\n ref: sentinelEnd,\n \"data-test\": \"sentinelEnd\"\n }));\n}\n\nprocess.env.NODE_ENV !== \"production\" ? Unstable_TrapFocus.propTypes = {\n // ----------------------------- Warning --------------------------------\n // | These PropTypes are generated from the TypeScript type definitions |\n // | To update them edit the d.ts file and run \"yarn proptypes\" |\n // ----------------------------------------------------------------------\n\n /**\n * A single child content element.\n */\n children: PropTypes.node,\n\n /**\n * If `true`, the trap focus will not automatically shift focus to itself when it opens, and\n * replace it to the last focused element when it closes.\n * This also works correctly with any trap focus children that have the `disableAutoFocus` prop.\n *\n * Generally this should never be set to `true` as it makes the trap focus less\n * accessible to assistive technologies, like screen readers.\n */\n disableAutoFocus: PropTypes.bool,\n\n /**\n * If `true`, the trap focus will not prevent focus from leaving the trap focus while open.\n *\n * Generally this should never be set to `true` as it makes the trap focus less\n * accessible to assistive technologies, like screen readers.\n */\n disableEnforceFocus: PropTypes.bool,\n\n /**\n * If `true`, the trap focus will not restore focus to previously focused element once\n * trap focus is hidden.\n */\n disableRestoreFocus: PropTypes.bool,\n\n /**\n * Return the document to consider.\n * We use it to implement the restore focus between different browser documents.\n */\n getDoc: PropTypes.func.isRequired,\n\n /**\n * Do we still want to enforce the focus?\n * This prop helps nesting TrapFocus elements.\n */\n isEnabled: PropTypes.func.isRequired,\n\n /**\n * If `true`, focus will be locked.\n */\n open: PropTypes.bool.isRequired\n} : void 0;\n\nif (process.env.NODE_ENV !== 'production') {\n // eslint-disable-next-line\n Unstable_TrapFocus['propTypes' + ''] = exactProp(Unstable_TrapFocus.propTypes);\n}\n\nexport default Unstable_TrapFocus;"]},"metadata":{},"sourceType":"module"} |