38 lines
1.9 KiB
JavaScript
38 lines
1.9 KiB
JavaScript
import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
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import * as React from 'react';
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import { useEvent, useMergedState } from 'rc-util';
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const EMPTY_KEYS = [];
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function filterKeys(keys, dataKeys) {
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const filteredKeys = keys.filter(key => dataKeys.has(key));
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return keys.length === filteredKeys.length ? keys : filteredKeys;
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}
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function flattenKeys(keys) {
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return Array.from(keys).join(';');
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}
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function useSelection(leftDataSource, rightDataSource, selectedKeys) {
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// Prepare `dataSource` keys
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const [leftKeys, rightKeys] = React.useMemo(() => [new Set(leftDataSource.map(src => src === null || src === void 0 ? void 0 : src.key)), new Set(rightDataSource.map(src => src === null || src === void 0 ? void 0 : src.key))], [leftDataSource, rightDataSource]);
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// Selected Keys
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const [mergedSelectedKeys, setMergedSelectedKeys] = useMergedState(EMPTY_KEYS, {
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value: selectedKeys
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});
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const sourceSelectedKeys = React.useMemo(() => filterKeys(mergedSelectedKeys, leftKeys), [mergedSelectedKeys, leftKeys]);
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const targetSelectedKeys = React.useMemo(() => filterKeys(mergedSelectedKeys, rightKeys), [mergedSelectedKeys, rightKeys]);
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// // Reset when data changed
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React.useEffect(() => {
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setMergedSelectedKeys([].concat(_toConsumableArray(filterKeys(mergedSelectedKeys, leftKeys)), _toConsumableArray(filterKeys(mergedSelectedKeys, rightKeys))));
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}, [flattenKeys(leftKeys), flattenKeys(rightKeys)]);
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// Update keys
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const setSourceSelectedKeys = useEvent(nextSrcKeys => {
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setMergedSelectedKeys([].concat(_toConsumableArray(nextSrcKeys), _toConsumableArray(targetSelectedKeys)));
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});
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const setTargetSelectedKeys = useEvent(nextTargetKeys => {
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setMergedSelectedKeys([].concat(_toConsumableArray(sourceSelectedKeys), _toConsumableArray(nextTargetKeys)));
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});
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return [
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// Keys
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sourceSelectedKeys, targetSelectedKeys,
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// Updater
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setSourceSelectedKeys, setTargetSelectedKeys];
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}
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export default useSelection; |