upfront-editable/lib/node-iterator.js

Friendly contenteditable API

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _nodeType = require('./node-type');

var nodeType = _interopRequireWildcard(_nodeType);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// A DOM node iterator.
//
// Has the ability to replace nodes on the fly and continue
// the iteration.
var NodeIterator = function () {
  function NodeIterator(root) {
    (0, _classCallCheck3.default)(this, NodeIterator);

    this.current = this.next = this.root = root;
  }

  (0, _createClass3.default)(NodeIterator, [{
    key: 'getNextTextNode',
    value: function getNextTextNode() {
      var next = void 0;
      while (next = this.getNext()) {
        if (next.nodeType === nodeType.textNode && next.data !== '') return next;
      }
    }
  }, {
    key: 'getNext',
    value: function getNext() {
      var n = this.current = this.next;
      var child = this.next = undefined;
      if (this.current) {
        child = n.firstChild;

        // Skip the children of elements with the attribute data-editable="remove"
        // This prevents text nodes that are not part of the content to be included.
        if (child && n.getAttribute('data-editable') !== 'remove') {
          this.next = child;
        } else {
          while (n !== this.root && !(this.next = n.nextSibling)) {
            n = n.parentNode;
          }
        }
      }
      return this.current;
    }
  }, {
    key: 'replaceCurrent',
    value: function replaceCurrent(replacement) {
      this.current = replacement;
      this.next = undefined;
      var n = this.current;
      while (n !== this.root && !(this.next = n.nextSibling)) {
        n = n.parentNode;
      }
    }
  }]);
  return NodeIterator;
}();

exports.default = NodeIterator;