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power-apps-codeapps-blog-part2/node_modules/@fluentui/react-tabster/lib/hooks/useTabster.js

61 lines
2.6 KiB
JavaScript

'use client';
import * as React from 'react';
import { createTabster, disposeTabster } from 'tabster';
import { useFluent_unstable as useFluent } from '@fluentui/react-shared-contexts';
import { getParent, useIsomorphicLayoutEffect, usePrevious } from '@fluentui/react-utilities';
const DEFAULT_FACTORY = (tabster)=>{
return tabster;
};
/**
* Creates a tabster instance with the provided configuration
*
* @internal
* @param targetDocument
*/ export function createTabsterWithConfig(targetDocument) {
const defaultView = (targetDocument === null || targetDocument === void 0 ? void 0 : targetDocument.defaultView) || undefined;
const shadowDOMAPI = defaultView === null || defaultView === void 0 ? void 0 : defaultView.__tabsterShadowDOMAPI;
if (defaultView) {
return createTabster(defaultView, {
autoRoot: {},
controlTab: false,
getParent,
// The non-undefined return value of checkUncontrolledCompletely() dominates the value that the element might
// have in its `uncontrolled: { completely: true }` part of the tabster attribute. We must make sure to return
// undefined if we want the value from tabster attribute to be respected.
checkUncontrolledCompletely: (element)=>{
var _element_firstElementChild;
return ((_element_firstElementChild = element.firstElementChild) === null || _element_firstElementChild === void 0 ? void 0 : _element_firstElementChild.hasAttribute('data-is-focus-trap-zone-bumper')) === true || undefined;
},
DOMAPI: shadowDOMAPI
});
}
}
export function useTabster(factory = DEFAULT_FACTORY) {
const { targetDocument } = useFluent();
const factoryResultRef = React.useRef(null);
useIsomorphicLayoutEffect(()=>{
const tabster = createTabsterWithConfig(targetDocument);
if (tabster) {
factoryResultRef.current = factory(tabster);
return ()=>{
disposeTabster(tabster);
factoryResultRef.current = null;
};
}
}, [
targetDocument,
factory
]);
if (process.env.NODE_ENV !== 'production') {
// eslint-disable-next-line
const previousFactory = usePrevious(factory);
if (previousFactory !== null && previousFactory !== factory) {
throw new Error([
'@fluentui/react-tabster: ',
'The factory function passed to useTabster has changed. This should not ever happen.'
].join('\n'));
}
}
return factoryResultRef;
}