js/lowebutil.js

/* eslint-disable consistent-return */
/* eslint-disable no-param-reassign */
/* eslint-disable no-unused-vars */

function getParameterByName(name, url) {
  if (!url) url = window.location.href;
  name = name.replace(/[\[\]]/g, '\\$&'); // eslint-disable-line no-useless-escape
  const regex = new RegExp(`[?&]${name}(=([^&#]*)|&|#|$)`);

  const results = regex.exec(url);
  if (!results) return null;
  if (!results[2]) return '';
  return decodeURIComponent(results[2].replace(/\+/g, ' '));
}

function isElectron() {
  return window && window.process && window.process.type;
}

function cookieGet(cookieRequest, callback) {
  if (!isElectron()) {
    return chrome.cookies.get(cookieRequest, (cookie) => {
      callback(cookie);
    });
  }
  const remote = require('electron').remote; // eslint-disable-line
  remote.session.defaultSession.cookies
    .get(cookieRequest)
    .then((cookieArray) => {
      let cookie = null;
      if (cookieArray.length > 0) {
        [cookie] = cookieArray;
      }
      callback(cookie);
    });
}

function cookieSet(cookie, callback) {
  if (!isElectron()) {
    return chrome.cookies.set(cookie, (arg1, arg2) => {
      callback(arg1, arg2);
    });
  }
  const remote = require('electron').remote; // eslint-disable-line
  remote.session.defaultSession.cookies.set(cookie).then((arg1, arg2) => {
    callback(null, arg1, arg2);
  });
}
function cookieRemove(cookie, callback) {
  if (!isElectron()) {
    return chrome.cookies.remove(cookie, (arg1, arg2) => {
      callback(arg1, arg2);
    });
  }
  const remote = require('electron').remote; // eslint-disable-line
  remote.session.defaultSession.cookies
    .remove(cookie.url, cookie.name)
    .then((arg1, arg2) => {
      callback(null, arg1, arg2);
    });
}

function setPrototypeOfLocalStorage() {
  const proto = Object.getPrototypeOf(localStorage);
  proto.getObject = function getObject(key) {
    const value = this.getItem(key);
    return value && JSON.parse(value);
  };
  proto.setObject = function setObject(key, value) {
    this.setItem(key, JSON.stringify(value));
  };
  Object.setPrototypeOf(localStorage, proto);
}

function getLocalStorageValue(key, defaultValue) {
  const keyString = localStorage.getItem(key);
  let result = keyString && JSON.parse(keyString);
  if (result === null) {
    result = defaultValue;
  }
  return result;
}

function easeInOutQuad(t, b, c, d) {
  // t = current time
  // b = start value
  // c = change in value
  // d = duration
  t /= d / 2;
  if (t < 1) return (c / 2) * t * t + b;
  t -= 1;
  return (-c / 2) * (t * (t - 2) - 1) + b;
}

function smoothScrollTo(element, to, duration) {
  /* https://gist.github.com/andjosh/6764939 */
  const start = element.scrollTop;
  const change = to - start;
  let currentTime = 0;
  const increment = 20;

  const animateScroll = () => {
    currentTime += increment;
    const val = easeInOutQuad(currentTime, start, change, duration);
    element.scrollTop = val;
    if (currentTime < duration) {
      setTimeout(animateScroll, increment);
    }
  };
  animateScroll();
}