weex-nuke/lib/node_modules/nuke-ep-utils/src/detection.js

基于 Rax 、Weex 的高性能组件体系 ~~

'use strict';

import { isWeex, isWeb, appInfo } from 'nuke-env';

let expressionBinding;
try {
  expressionBinding = require('@weex-module/expressionBinding');
} catch (err) {
  if (isWeex) {
    console.warn('[Warning] current env not support expressionBinding');
  }
}
// eslint-disable-next-line
let Detection = { ...appInfo };

Detection.isWeex = isWeex;
Detection.isWeb = isWeb;
const appName = appInfo.appName && appInfo.appName.toUpperCase();
if (isWeex) {
  const deviceInfo = typeof WXEnvironment !== 'undefined' ? WXEnvironment : {}; // eslint-disable-line
  Detection = Object.assign(Detection, {
    Android: appInfo.platform === 'android',
    iOS: appInfo.platform === 'iOS',
    isAliApp: true,
    isTB: appName === 'TB',
    isTM: appName === 'TM' || appName === 'TMALL', // 猫客中，appName是tmall
    isQN: appName === 'QN',
    isLZD: appName === 'LA' || appName === 'LA-ANDROID' || appName === 'LAZADA',
    appVersion: appInfo.appVersion,
    weexVersion: appInfo.weexVersion,
    osVersion: appInfo.osVersion,
  });
} else {
  const ua = window.navigator.userAgent;
  Detection = Object.assign(Detection, {
    Android: /Android/gi.test(ua),
    iOS: /iPhone|iPad|iPod/gi.test(ua),
    isAliApp: /AliApp\([A-Z-_]+\/[0-9.]+\)/gi.test(ua),
    isTB: appName === 'TB',
    isTM: appName === 'TM' || appName === 'TMALL', // 猫客中，appName是tmall
    isQN: appName === 'QN',
    isLZD: appName === 'LA' || appName === 'LA-ANDROID' || appName === 'LAZADA',
    appVersion: appInfo.appVersion,
  });
}
/**
 * @param {object} params params.iosVer  params.andVer params.isCheckOS
 * isCheckOS 是否判断系统版本。默认为false，判断app版本
 * iosVer iOS判断基础版本
 * andVer android判断基础版本
 */
Detection.gt = (version, isCheckOS) => {
  if (!isCheckOS && !Detection.appVersion) {
    return false;
  }
  let checkVer = isCheckOS ? Detection.osVersion : Detection.appVersion;
  if (checkVer === version) {
    return true;
  }
  if (!version) {
    version = '0.0';
  }
  checkVer = checkVer.split('.');
  version = version.split('.');
  for (let i = 0; i < checkVer.length; i += 1) {
    const len = i + 1;
    for (let j = 0; j < len; j += 1) {
      const ver1 = +checkVer[j];
      const ver2 = version[j];
      if (ver1 > ver2) {
        return true;
      } else if (ver1 < ver2) {
        return false;
      } else if (
        ver1 === ver2 &&
        checkVer.length === version.length &&
        j === 3
      ) {
        return true;
      }
    }
  }
  return false;
};

if (Detection.isWeex) {
  // 判断系统版本，用于探测动画
  if (Detection.Android) {
    // 针对4.3以下版本的android，不使用expressionBinding
    Detection.isHighOS = Detection.gt('4.3', true);
  }

  if (expressionBinding && expressionBinding.enableBinding) {
    if (Detection.Android && Detection.isHighOS) {
      Detection.epEnable = true;
    }
    if (Detection.iOS) {
      Detection.epEnable = true;
    }
  }
}

export default Detection;