@alilc/lowcode-shell/es/model/selection.js

Shell Layer for AliLowCodeEngine

import _createClass from "@babel/runtime/helpers/createClass";
import { Node as ShellNode } from './node';
import { selectionSymbol } from '../symbols';
export var Selection = /*#__PURE__*/function () {
  function Selection(document) {
    this[selectionSymbol] = void 0;
    this[selectionSymbol] = document.selection;
  }

  /**
   * 返回选中的节点 id
   */
  var _proto = Selection.prototype;
  /**
   * 选中指定节点（覆盖方式）
   * @param id
   */
  _proto.select = function select(id) {
    this[selectionSymbol].select(id);
  }

  /**
   * 批量选中指定节点们
   * @param ids
   */;
  _proto.selectAll = function selectAll(ids) {
    this[selectionSymbol].selectAll(ids);
  }

  /**
   * 移除选中的指定节点
   * @param id
   */;
  _proto.remove = function remove(id) {
    this[selectionSymbol].remove(id);
  }

  /**
   * 清除所有选中节点
   */;
  _proto.clear = function clear() {
    this[selectionSymbol].clear();
  }

  /**
   * 判断是否选中了指定节点
   * @param id
   * @returns
   */;
  _proto.has = function has(id) {
    return this[selectionSymbol].has(id);
  }

  /**
   * 选中指定节点（增量方式）
   * @param id
   */;
  _proto.add = function add(id) {
    this[selectionSymbol].add(id);
  }

  /**
   * 获取选中的节点实例
   * @returns
   */;
  _proto.getNodes = function getNodes() {
    var innerNodes = this[selectionSymbol].getNodes();
    var nodes = [];
    innerNodes.forEach(function (node) {
      var shellNode = ShellNode.create(node);
      if (shellNode) {
        nodes.push(shellNode);
      }
    });
    return nodes;
  }

  /**
   * 获取选区的顶层节点
   * for example:
   *  getNodes() returns [A, subA, B], then
   *  getTopNodes() will return [A, B], subA will be removed
   * @returns
   */;
  _proto.getTopNodes = function getTopNodes(includeRoot) {
    if (includeRoot === void 0) {
      includeRoot = false;
    }
    var innerNodes = this[selectionSymbol].getTopNodes(includeRoot);
    var nodes = [];
    innerNodes.forEach(function (node) {
      var shellNode = ShellNode.create(node);
      if (shellNode) {
        nodes.push(shellNode);
      }
    });
    return nodes;
  };
  _proto.onSelectionChange = function onSelectionChange(fn) {
    return this[selectionSymbol].onSelectionChange(fn);
  };
  return _createClass(Selection, [{
    key: "selected",
    get: function get() {
      return this[selectionSymbol].selected;
    }

    /**
     * return selected Node instance
     */
  }, {
    key: "node",
    get: function get() {
      var nodes = this.getNodes();
      return nodes && nodes.length > 0 ? nodes[0] : null;
    }
  }]);
}();