"use strict";

exports.__esModule = true;
exports.getHighestSafeWindowContext = getHighestSafeWindowContext;
exports.getWindowHeight = getWindowHeight;
exports.getWindowWidth = getWindowWidth;

function getWindowWidth() {
  return typeof global.window !== 'undefined' ? global.window.innerWidth : 0;
}

function getWindowHeight() {
  return typeof global.window !== 'undefined' ? global.window.innerHeight : 0;
}

const isCrossOriginFrame = () => {
  try {
    return global.window.location.hostname !== global.window.parent.location.hostname;
  } catch (e) {
    return true;
  }
}; // Get the highest window context that isn't cross-origin
// (When in an iframe)


function getHighestSafeWindowContext(self = global.window.self) {
  // If we reached the top level, return self
  if (self === global.window.top) {
    return self;
  } // If parent is the same origin, we can move up one context
  // Reference: https://stackoverflow.com/a/21965342/1601953


  if (!isCrossOriginFrame()) {
    return getHighestSafeWindowContext(self.parent);
  } // If a different origin, we consider the current level
  // as the top reachable one


  return self;
}