devextreme/dist/transpiled/core/utils/browser.js

HTML5 JavaScript Component Suite for Responsive Web Development

"use strict";

var extend = require("./extend").extend,
    windowUtils = require("./window"),
    navigator = windowUtils.getNavigator();

var webkitRegExp = /(webkit)[ \/]([\w.]+)/,
    ieRegExp = /(msie) (\d{1,2}\.\d)/,
    ie11RegExp = /(trident).*rv:(\d{1,2}\.\d)/,
    msEdge = /(edge)\/((\d+)?[\w\.]+)/,
    safari = /(safari)/i,
    mozillaRegExp = /(mozilla)(?:.*? rv:([\w.]+))/;

var browserFromUA = function browserFromUA(ua) {
    ua = ua.toLowerCase();

    var result = {},
        matches = ieRegExp.exec(ua) || ie11RegExp.exec(ua) || msEdge.exec(ua) || ua.indexOf("compatible") < 0 && mozillaRegExp.exec(ua) || webkitRegExp.exec(ua) || [],
        browserName = matches[1],
        browserVersion = matches[2];

    if (browserName === "webkit" && ua.indexOf("chrome") < 0 && safari.exec(ua)) {
        browserName = "safari";
        result["webkit"] = true;
        browserVersion = /Version\/([0-9.]+)/i.exec(ua);
        browserVersion = browserVersion && browserVersion[1];
    }

    if (browserName === "trident" || browserName === "edge") {
        browserName = "msie";
    }

    if (browserName) {
        result[browserName] = true;
        result.version = browserVersion;
    }

    return result;
};
module.exports = extend({ _fromUA: browserFromUA }, browserFromUA(navigator.userAgent));