js-web-tools/lib/domUtils.js

Tools for Javascript develpers

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isDocument = isDocument;
exports.isWindow = isWindow;
exports.getWindow = getWindow;
exports.canUseDOM = canUseDOM;
exports.ownerDocument = ownerDocument;
exports.ownerWindow = ownerWindow;
exports.isTransform = isTransform;
exports.getComputedStyle = getComputedStyle;
exports.isDOMNode = isDOMNode;

var _utils = require("./utils");

function isDocument(element) {
  return 'nodeType' in element && element.nodeType === document.DOCUMENT_NODE;
}

function isWindow(node) {
  if ('window' in node && node.window === node) {
    return node;
  }

  if (isDocument(node)) {
    return node.defaultView || false;
  }

  return false;
}

function getWindow(node) {
  return isWindow(node);
}

function canUseDOM() {
  return !!(typeof window !== 'undefined' && window.document && window.document.createElement);
}

function ownerDocument(node) {
  return node && node.ownerDocument || document;
}

function ownerWindow(node) {
  var doc = ownerDocument(node);
  return doc && doc.defaultView || window;
}

var SUPPORTED_TRANSFORMS = /^((translate|rotate|scale)(X|Y|Z|3d)?|matrix(3d)?|perspective|skew(X|Y)?)$/i;

function isTransform(value) {
  return !!(value && SUPPORTED_TRANSFORMS.test(value));
}

function getComputedStyle(node, psuedoElement) {
  return ownerWindow(node).getComputedStyle(node, psuedoElement);
}

function isDOMNode(obj) {
  return (0, _utils.isObject)(obj) && obj.nodeType > 0;
}