react-native-surveys/Forms/utils/index.js

Build your own forms, surveys and polls for your React Native apps.

import { decodeData } from "./base64";
export function predefineValuesFromState(state = {}, form) {
  if (!form.pages) return;
  let key,
    keys = Object.keys(state);
  let n = keys.length;
  const newState = {};

  while (n--) {
    key = keys[n];
    newState[key.toLowerCase()] = state[key];
  }

  form.pages.forEach(page => {
    if (page.blocks) {
      page.blocks.forEach(block => {
        if (block.type === "contact") {
          if (block.value) {
            block.value.forEach(field => {
              const fieldLabel = field.question
                ? field.question.toLowerCase()
                : "";

              if (fieldLabel && newState[fieldLabel]) {
                field.value = newState[fieldLabel];
              }
            });
          }
        }

        const blockLabel = block.question ? block.question.toLowerCase() : "";

        if (blockLabel && newState[blockLabel]) {
          block.value = newState[blockLabel];
        }
      });
    }
  });
  return form;
}
export function parseUrlData(url = "") {
  if (!url) return {};
  let search = url.split("/")[3];

  if (!search) {
    search = url.split("/")[1];
  }

  if (!search) {
    return {};
  }

  if (search.indexOf("?") !== -1) {
    search = search.substring(0, search.indexOf("?"));
  }

  return decodeData(search);
}
export function getRandomInt(min, max) {
  return Math.floor(Math.random() * (max - min + 1)) + min;
}
export function protectWithKey(license, key) {
  const rand = getRandomInt(0, license.length - 1);
  return [license.slice(0, rand), key, license.slice(rand)].join("");
}
export function queryStringToJSON() {
  if (!window || !window.location) return {};
  let pairs = window.location.search.slice(1).split("&");
  let result = {};
  pairs.forEach(function(pair) {
    pair = pair.split("=");
    result[pair[0]] = decodeURIComponent(pair[1] || "");
  });
  return JSON.parse(JSON.stringify(result));
}
export function returnStateQueryParameter() {
  const queryParameters = queryStringToJSON();
  const queryState = queryParameters.state;
  let state;

  if (queryState) {
    try {
      state = JSON.parse(decodeURIComponent(queryState));
    } catch (e) {
      console.error("Invalid format of state query parameter.");
    }
  }

  return state;
}
export function getBrowser() {
  // Not in browser
  if (!window || !window.location) return ""; // Opera 8.0+

  const isOpera =
    (!!window.opr && !!window.opr.addons) ||
    !!window.opera ||
    navigator.userAgent.indexOf(" OPR/") >= 0; // Firefox 1.0+

  const isFirefox = typeof InstallTrigger !== "undefined"; // Safari 3.0+ "[object HTMLElementConstructor]"

  const isSafari =
    /constructor/i.test(window.HTMLElement) ||
    (function(p) {
      return p.toString() === "[object SafariRemoteNotification]";
    })(!window["safari"] || window.safari.pushNotification); // Internet Explorer 6-11

  const isIE =
    /*@cc_on!@*/
    false || !!document.documentMode; // Edge 20+

  const isEdge = !isIE && !!window.StyleMedia; // Chrome 1+

  const isChrome = !!window.chrome; // Blink engine detection

  const isBlink = (isChrome || isOpera) && !!window.CSS;
  return isOpera
    ? "Opera"
    : isFirefox
    ? "Firefox"
    : isSafari
    ? "Safari"
    : isChrome
    ? "Chrome"
    : isIE
    ? "IE"
    : isEdge
    ? "Edge"
    : isBlink
    ? "Blink"
    : "";
}
export function getOperatingSystem() {
  if (!window || !window.location) return "";
  const userAgent = navigator.userAgent || navigator.vendor || window.opera;

  if (/windows phone/i.test(userAgent)) {
    return "Windows Phone";
  }

  if (/android/i.test(userAgent)) {
    return "Android";
  }

  if (/iPad|iPhone|iPod/.test(userAgent) && !window.MSStream) {
    return "iOS";
  }

  if (window.navigator.userAgent.indexOf("Windows NT 10.0") !== -1)
    return "Windows 10";
  if (window.navigator.userAgent.indexOf("Windows NT 6.2") !== -1)
    return "Windows 8";
  if (window.navigator.userAgent.indexOf("Windows NT 6.1") !== -1)
    return "Windows 7";
  if (window.navigator.userAgent.indexOf("Windows NT 6.0") !== -1)
    return "Windows Vista";
  if (window.navigator.userAgent.indexOf("Windows NT 5.1") !== -1)
    return "Windows XP";
  if (window.navigator.userAgent.indexOf("Windows NT 5.0") !== -1)
    return "Windows 2000";
  if (window.navigator.userAgent.indexOf("Mac") !== -1) return "Mac";
  if (window.navigator.userAgent.indexOf("X11") !== -1) return "UNIX";
  if (window.navigator.userAgent.indexOf("Linux") !== -1) return "Linux";
  return "";
}