Metacat

/*

 * Copyright 2004 ThoughtWorks, Inc

 *

 *  Licensed under the Apache License, Version 2.0 (the "License");

 *  you may not use this file except in compliance with the License.

 *  You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 *  Unless required by applicable law or agreed to in writing, software

 *  distributed under the License is distributed on an "AS IS" BASIS,

 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 *  See the License for the specific language governing permissions and

 *  limitations under the License.

 *

 */

// Although it's generally better web development practice not to use

// browser-detection (feature detection is better), the subtle browser

// differences that Selenium has to work around seem to make it

// necessary. Maybe as we learn more about what we need, we can do this in

// a more "feature-centric" rather than "browser-centric" way.

var BrowserVersion = function() {

    this.name = navigator.appName;

    if (window.opera != null) {

        this.browser = BrowserVersion.OPERA;

        this.isOpera = true;

        return;

    }

    var _getQueryParameter = function(searchKey) {

        var str = location.search.substr(1);

        if (str == null) return null;

        var clauses = str.split('&');

        for (var i = 0; i < clauses.length; i++) {

            var keyValuePair = clauses[i].split('=', 2);

            var key = unescape(keyValuePair[0]);

            if (key == searchKey) {

                return unescape(keyValuePair[1]);

            }

        }

        return null;

    };

    var self = this;

    var checkChrome = function() {

        var loc = window.document.location.href;

        try {

            loc = window.top.document.location.href;

            if (/^chrome:\/\//.test(loc)) {

                self.isChrome = true;

            } else {

                self.isChrome = false;

            }

        } catch (e) {

            // can't see the top (that means we might be chrome, but it's impossible to be sure)

            self.isChromeDetectable = "no, top location couldn't be read in this window";

            if (_getQueryParameter('thisIsChrome')) {

                self.isChrome = true;

            } else {

                self.isChrome = false;

            }

        }

    }

    if (this.name == "Microsoft Internet Explorer") {

        this.browser = BrowserVersion.IE;

        this.isIE = true;

        try {

            if (window.top.SeleniumHTARunner && window.top.document.location.pathname.match(/.hta$/i)) {

                this.isHTA = true;

            }

        } catch (e) {

            this.isHTADetectable = "no, top location couldn't be read in this window";

            if (_getQueryParameter('thisIsHTA')) {

                self.isHTA = true;

            } else {

                self.isHTA = false;

            }

        }

        if ("0" == navigator.appMinorVersion) {

            this.preSV1 = true;

            if (navigator.appVersion.match(/MSIE 6.0/)) {

            	this.appearsToBeBrokenInitialIE6 = true;

            }

        }

        return;

    }

    if (navigator.userAgent.indexOf('Safari') != -1) {

        this.browser = BrowserVersion.SAFARI;

        this.isSafari = true;

        this.khtml = true;

        return;

    }

    if (navigator.userAgent.indexOf('Konqueror') != -1) {

        this.browser = BrowserVersion.KONQUEROR;

        this.isKonqueror = true;

        this.khtml = true;

        return;

    }

    if (navigator.userAgent.indexOf('Firefox') != -1) {

        this.browser = BrowserVersion.FIREFOX;

        this.isFirefox = true;

        this.isGecko = true;

        var result = /.*Firefox\/([\d\.]+).*/.exec(navigator.userAgent);

        if (result) {

            this.firefoxVersion = result[1];

        }

        checkChrome();

        return;

    }

    if (navigator.userAgent.indexOf('Gecko') != -1) {

        this.browser = BrowserVersion.MOZILLA;

        this.isMozilla = true;

        this.isGecko = true;

        checkChrome();

        return;

    }

    this.browser = BrowserVersion.UNKNOWN;

}

BrowserVersion.OPERA = "Opera";

BrowserVersion.IE = "IE";

BrowserVersion.KONQUEROR = "Konqueror";

BrowserVersion.SAFARI = "Safari";

BrowserVersion.FIREFOX = "Firefox";

BrowserVersion.MOZILLA = "Mozilla";

BrowserVersion.UNKNOWN = "Unknown";

var browserVersion = new BrowserVersion();