zotero-web-library/lib/BrowserDetect.js

Web library from zotero.org

'use strict';

var log = require('libzotero/lib/Log').Logger('zotero-web-library:BrowserDetect');

var BrowserDetect = {
    init: function init() {
        this.browser = this.searchString(this.dataBrowser) || 'An unknown browser';
        this.version = this.searchVersion(navigator.userAgent) || this.searchVersion(navigator.appVersion) || 'an unknown version';
        this.OS = this.searchString(this.dataOS) || 'an unknown OS';
    },
    searchString: function searchString(data) {
        for (var i = 0; i < data.length; i++) {
            var dataString = data[i].string;
            var dataProp = data[i].prop;
            this.versionSearchString = data[i].versionSearch || data[i].identity;
            if (dataString) {
                if (dataString.indexOf(data[i].subString) != -1) return data[i].identity;
            } else if (dataProp) return data[i].identity;
        }
    },
    searchVersion: function searchVersion(dataString) {
        var index = dataString.indexOf(this.versionSearchString);
        if (index == -1) return;
        return parseFloat(dataString.substring(index + this.versionSearchString.length + 1));
    },
    dataBrowser: [{
        string: navigator.userAgent,
        subString: 'Chrome',
        identity: 'Chrome'
    }, { string: navigator.userAgent,
        subString: 'OmniWeb',
        versionSearch: 'OmniWeb/',
        identity: 'OmniWeb'
    }, {
        string: navigator.vendor,
        subString: 'Apple',
        identity: 'Safari',
        versionSearch: 'Version'
    }, {
        prop: window.opera,
        identity: 'Opera',
        versionSearch: 'Version'
    }, {
        string: navigator.vendor,
        subString: 'iCab',
        identity: 'iCab'
    }, {
        string: navigator.vendor,
        subString: 'KDE',
        identity: 'Konqueror'
    }, {
        string: navigator.userAgent,
        subString: 'Firefox',
        identity: 'Firefox'
    }, {
        string: navigator.vendor,
        subString: 'Camino',
        identity: 'Camino'
    }, { // for newer Netscapes (6+)
        string: navigator.userAgent,
        subString: 'Netscape',
        identity: 'Netscape'
    }, {
        string: navigator.userAgent,
        subString: 'MSIE',
        identity: 'Explorer',
        versionSearch: 'MSIE'
    }, {
        string: navigator.userAgent,
        subString: 'Gecko',
        identity: 'Mozilla',
        versionSearch: 'rv'
    }, { // for older Netscapes (4-)
        string: navigator.userAgent,
        subString: 'Mozilla',
        identity: 'Netscape',
        versionSearch: 'Mozilla'
    }],
    dataOS: [{
        string: navigator.platform,
        subString: 'Win',
        identity: 'Windows'
    }, {
        string: navigator.platform,
        subString: 'Mac',
        identity: 'Mac'
    }, {
        string: navigator.userAgent,
        subString: 'iPhone',
        identity: 'iPhone/iPod'
    }, {
        string: navigator.platform,
        subString: 'Linux',
        identity: 'Linux'
    }]

};
BrowserDetect.init();

module.exports = BrowserDetect;