73 lines
1.9 KiB
JavaScript
73 lines
1.9 KiB
JavaScript
import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
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import { fillFieldNames } from "rc-tree/es/utils/treeUtil";
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const RECORD_NONE = 0;
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const RECORD_START = 1;
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const RECORD_END = 2;
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function traverseNodesKey(treeData, callback, fieldNames) {
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const {
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key: fieldKey,
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children: fieldChildren
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} = fieldNames;
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function processNode(dataNode) {
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const key = dataNode[fieldKey];
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const children = dataNode[fieldChildren];
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if (callback(key, dataNode) !== false) {
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traverseNodesKey(children || [], callback, fieldNames);
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}
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}
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treeData.forEach(processNode);
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}
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/** 计算选中范围，只考虑expanded情况以优化性能 */
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export function calcRangeKeys(_ref) {
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let {
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treeData,
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expandedKeys,
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startKey,
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endKey,
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fieldNames
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} = _ref;
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const keys = [];
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let record = RECORD_NONE;
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if (startKey && startKey === endKey) {
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return [startKey];
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}
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if (!startKey || !endKey) {
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return [];
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}
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function matchKey(key) {
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return key === startKey || key === endKey;
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}
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traverseNodesKey(treeData, key => {
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if (record === RECORD_END) {
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return false;
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}
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if (matchKey(key)) {
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// Match test
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keys.push(key);
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if (record === RECORD_NONE) {
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record = RECORD_START;
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} else if (record === RECORD_START) {
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record = RECORD_END;
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return false;
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}
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} else if (record === RECORD_START) {
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// Append selection
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keys.push(key);
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}
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return expandedKeys.includes(key);
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}, fillFieldNames(fieldNames));
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return keys;
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}
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export function convertDirectoryKeysToNodes(treeData, keys, fieldNames) {
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const restKeys = _toConsumableArray(keys);
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const nodes = [];
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traverseNodesKey(treeData, (key, node) => {
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const index = restKeys.indexOf(key);
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if (index !== -1) {
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nodes.push(node);
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restKeys.splice(index, 1);
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}
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return !!restKeys.length;
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}, fillFieldNames(fieldNames));
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return nodes;
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} |