ecl/dist/node.js

Evented Components Library

var Node,
  extend = require("extends__"),
  hasProp = {}.hasOwnProperty;

module.exports = Node = (function(superClass) {
  extend(Node, superClass);

  function Node() {
    Node.__super__.constructor.apply(this, arguments);
  }

  Node.prototype.appendChild = function(child) {
    var ref;
    if (child !== this) {
      this.children || (this.children = []);
      if (-1 === this.children.indexOf(child)) {
        if ((ref = child.parent) != null) {
          if (typeof ref.removeChild === "function") {
            ref.removeChild(child);
          }
        }
        child.parent = this;
        this.children.push(child);
      }
    }
    return this;
  };

  Node.prototype.removeChild = function(child) {
    var idx, ref;
    if (((ref = this.children) != null ? ref.length : void 0) && -1 !== (idx = this.children.indexOf(child))) {
      delete child.parent;
      this.children.splice(idx, 1);
      if (this.children.length === 0) {
        delete this.children;
      }
    }
    return this;
  };

  return Node;

})(require('./base'));