79 lines
3.1 KiB
JavaScript
79 lines
3.1 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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Object.defineProperty(exports, "useTreeNavigation", {
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enumerable: true,
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get: function() {
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return useTreeNavigation;
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}
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});
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const _interop_require_wildcard = require("@swc/helpers/_/_interop_require_wildcard");
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const _nextTypeAheadElement = require("../utils/nextTypeAheadElement");
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const _tokens = require("../utils/tokens");
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const _useRovingTabIndexes = require("./useRovingTabIndexes");
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const _react = /*#__PURE__*/ _interop_require_wildcard._(require("react"));
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const _useHTMLElementWalkerRef = require("./useHTMLElementWalkerRef");
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const _reactutilities = require("@fluentui/react-utilities");
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function useTreeNavigation() {
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'use no memo';
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const { rove, initialize: initializeRovingTabIndex } = (0, _useRovingTabIndexes.useRovingTabIndex)();
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const { walkerRef, rootRef: walkerRootRef } = (0, _useHTMLElementWalkerRef.useHTMLElementWalkerRef)();
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const rootRefCallback = _react.useCallback((root)=>{
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if (root && walkerRef.current) {
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initializeRovingTabIndex(walkerRef.current);
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}
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}, [
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walkerRef,
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initializeRovingTabIndex
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]);
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const getNextElement = (data)=>{
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if (!walkerRef.current) {
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return null;
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}
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switch(data.type){
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case _tokens.treeDataTypes.Click:
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return data.target;
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case _tokens.treeDataTypes.TypeAhead:
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walkerRef.current.currentElement = data.target;
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return (0, _nextTypeAheadElement.nextTypeAheadElement)(walkerRef.current, data.event.key);
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case _tokens.treeDataTypes.ArrowLeft:
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walkerRef.current.currentElement = data.target;
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return walkerRef.current.parentElement();
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case _tokens.treeDataTypes.ArrowRight:
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walkerRef.current.currentElement = data.target;
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return walkerRef.current.firstChild();
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case _tokens.treeDataTypes.End:
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walkerRef.current.currentElement = walkerRef.current.root;
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return lastChildRecursive(walkerRef.current);
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case _tokens.treeDataTypes.Home:
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walkerRef.current.currentElement = walkerRef.current.root;
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return walkerRef.current.firstChild();
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case _tokens.treeDataTypes.ArrowDown:
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walkerRef.current.currentElement = data.target;
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return walkerRef.current.nextElement();
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case _tokens.treeDataTypes.ArrowUp:
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walkerRef.current.currentElement = data.target;
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return walkerRef.current.previousElement();
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}
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};
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function navigate(data, focusOptions) {
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const nextElement = getNextElement(data);
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if (nextElement) {
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rove(nextElement, focusOptions);
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}
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}
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return {
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navigate,
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treeRef: (0, _reactutilities.useMergedRefs)(walkerRootRef, rootRefCallback)
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};
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}
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function lastChildRecursive(walker) {
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let lastElement = null;
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let nextElement = null;
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while(nextElement = walker.lastChild()){
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lastElement = nextElement;
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}
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return lastElement;
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}
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