glance-dom/javascript/lib/extensions/filters/contained-near-scope.js

Glance DOM library

'use strict';

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

var _log = require('../../utils/log');

var _log2 = _interopRequireDefault(_log);

var _reduce = require('@arr/reduce');

var _reduce2 = _interopRequireDefault(_reduce);

var _filter = require('@arr/filter');

var _filter2 = _interopRequireDefault(_filter);

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

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

exports.default = {
	options: {
		'contained-near-scope': {
			filter: function closestdom(_ref) {
				var elements = _ref.elements,
				    _ref$containerElement = _ref.containerElements,
				    containerElements = _ref$containerElement === undefined ? [document.documentElement] : _ref$containerElement,
				    _ref$scopeElements = _ref.scopeElements,
				    scopeElements = _ref$scopeElements === undefined ? [] : _ref$scopeElements;

				_log2.default.debug('Filtering for subjects contained near scope');

				var containerLookup = new Set(containerElements);

				if (scopeElements.length === 0) return elements;

				var foundElements = (0, _reduce2.default)(scopeElements, function (result, scope) {
					var p = scope;

					do {
						var found = (0, _filter2.default)(elements, function (element) {
							return p === element || p.contains(element);
						});

						if (found.length > 0 || containerLookup.has(p)) {
							result = result.concat(found);
							break;
						}
					} while ((p = p.parentNode) && p.outerHTML !== null);

					return result;
				}, []);

				return [].concat(_toConsumableArray(new Set(foundElements)));
			}
		}
	}
};