antd/lib/tree/util.js

An enterprise-class UI design language and React components implementation

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getFullKeyList = getFullKeyList;
exports.calcRangeKeys = calcRangeKeys;
exports.convertDirectoryKeysToNodes = convertDirectoryKeysToNodes;

var _util = require("rc-tree/lib/util");

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; } }

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 = (0, _util.getNodeChildren)(rootChildren) || [];

  function processNode(node) {
    var key = node.key,
        children = node.props.children;

    if (callback(key, node) !== false) {
      traverseNodesKey(children, callback);
    }
  }

  nodeList.forEach(processNode);
}

function getFullKeyList(children) {
  var _convertTreeToEntitie = (0, _util.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 */


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;
}

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;
}
//# sourceMappingURL=util.js.map