93 lines
3.7 KiB
JavaScript
93 lines
3.7 KiB
JavaScript
'use client';
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"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, "useVirtualizerScrollView_unstable", {
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enumerable: true,
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get: function() {
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return useVirtualizerScrollView_unstable;
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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 _react = /*#__PURE__*/ _interop_require_wildcard._(require("react"));
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const _reactutilities = require("@fluentui/react-utilities");
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const _useVirtualizer = require("../Virtualizer/useVirtualizer");
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const _Hooks = require("../../Hooks");
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const _Utilities = require("../../Utilities");
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const _useStaticPagination = require("../../hooks/useStaticPagination");
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function useVirtualizerScrollView_unstable(props) {
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const { imperativeRef, itemSize, numItems, axis = 'vertical', reversed, enablePagination = false } = props;
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var _props_axis;
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const { virtualizerLength, bufferItems, bufferSize, scrollRef, containerSizeRef } = (0, _Hooks.useStaticVirtualizerMeasure)({
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defaultItemSize: props.itemSize,
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direction: (_props_axis = props.axis) !== null && _props_axis !== void 0 ? _props_axis : 'vertical'
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});
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// Store the virtualizer length as a ref for imperative ref access
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const virtualizerLengthRef = _react.useRef(virtualizerLength);
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if (virtualizerLengthRef.current !== virtualizerLength) {
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virtualizerLengthRef.current = virtualizerLength;
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}
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const paginationRef = (0, _useStaticPagination.useStaticVirtualizerPagination)({
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axis,
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itemSize
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}, enablePagination);
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const scrollViewRef = (0, _reactutilities.useMergedRefs)(props.scrollViewRef, scrollRef, paginationRef);
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const imperativeVirtualizerRef = _react.useRef(null);
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const scrollCallbackRef = _react.useRef(null);
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_react.useImperativeHandle(imperativeRef, ()=>{
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var _imperativeVirtualizerRef_current;
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return {
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scrollTo (index, behavior = 'auto', callback) {
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var _imperativeVirtualizerRef_current;
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scrollCallbackRef.current = callback !== null && callback !== void 0 ? callback : null;
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(_imperativeVirtualizerRef_current = imperativeVirtualizerRef.current) === null || _imperativeVirtualizerRef_current === void 0 ? void 0 : _imperativeVirtualizerRef_current.setFlaggedIndex(index);
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(0, _Utilities.scrollToItemStatic)({
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index,
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itemSize,
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totalItems: numItems,
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scrollViewRef,
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axis,
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reversed,
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behavior
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});
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},
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currentIndex: (_imperativeVirtualizerRef_current = imperativeVirtualizerRef.current) === null || _imperativeVirtualizerRef_current === void 0 ? void 0 : _imperativeVirtualizerRef_current.currentIndex,
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virtualizerLength: virtualizerLengthRef
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};
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}, [
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axis,
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scrollViewRef,
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itemSize,
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numItems,
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reversed
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]);
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const handleRenderedIndex = (index)=>{
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if (scrollCallbackRef.current) {
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scrollCallbackRef.current(index);
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}
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};
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const virtualizerState = (0, _useVirtualizer.useVirtualizer_unstable)({
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...props,
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virtualizerLength,
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bufferItems,
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bufferSize,
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onRenderedFlaggedIndex: handleRenderedIndex,
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imperativeVirtualizerRef,
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containerSizeRef
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});
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return {
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...virtualizerState,
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components: {
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...virtualizerState.components,
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container: 'div'
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},
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container: _reactutilities.slot.always(props.container, {
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defaultProps: {
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ref: scrollViewRef
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},
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elementType: 'div'
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})
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};
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}
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