antd
Version:
An enterprise-class UI design language and React components implementation
103 lines (78 loc) • 2.73 kB
JavaScript
function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
import { getNodeChildren, convertTreeToEntities } from "rc-tree/es/util";
var Record;
(function (Record) {
Record[Record["None"] = 0] = "None";
Record[Record["Start"] = 1] = "Start";
Record[Record["End"] = 2] = "End";
})(Record || (Record = {})); // TODO: Move this logic into `rc-tree`
function traverseNodesKey(rootChildren, callback) {
var nodeList = getNodeChildren(rootChildren) || [];
function processNode(node) {
var key = node.key,
children = node.props.children;
if (callback(key, node) !== false) {
traverseNodesKey(children, callback);
}
}
nodeList.forEach(processNode);
}
export function getFullKeyList(children) {
var _convertTreeToEntitie = convertTreeToEntities(children),
keyEntities = _convertTreeToEntitie.keyEntities;
return Object.keys(keyEntities);
}
/** 计算选中范围,只考虑expanded情况以优化性能 */
export function calcRangeKeys(rootChildren, expandedKeys, startKey, endKey) {
var keys = [];
var record = Record.None;
if (startKey && startKey === endKey) {
return [startKey];
}
if (!startKey || !endKey) {
return [];
}
function matchKey(key) {
return key === startKey || key === endKey;
}
traverseNodesKey(rootChildren, function (key) {
if (record === Record.End) {
return false;
}
if (matchKey(key)) {
// Match test
keys.push(key);
if (record === Record.None) {
record = Record.Start;
} else if (record === Record.Start) {
record = Record.End;
return false;
}
} else if (record === Record.Start) {
// Append selection
keys.push(key);
}
if (expandedKeys.indexOf(key) === -1) {
return false;
}
return true;
});
return keys;
}
export function convertDirectoryKeysToNodes(rootChildren, keys) {
var restKeys = _toConsumableArray(keys);
var nodes = [];
traverseNodesKey(rootChildren, function (key, node) {
var index = restKeys.indexOf(key);
if (index !== -1) {
nodes.push(node);
restKeys.splice(index, 1);
}
return !!restKeys.length;
});
return nodes;
}
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