Class flags

BrowserUtil = {

    openUrl: function(url){
        window.open(url, "_self");
    },

    isTouchDevice: function(){
        try{
            document.createEvent("TouchEvent");
            return true;
        }catch(e){
            return false;
        }
    },

    getCurrentOS: function(){
        var appVersion = navigator.appVersion;
        if (appVersion.indexOf("Android")!=-1) return "android";
        if (appVersion.indexOf("Mac")!=-1) return "mac";
        if (appVersion.indexOf("Win")!=-1) return "windows";
        if (appVersion.indexOf("X11")!=-1) return "unix";
        if (appVersion.indexOf("Linux")!=-1) return "linux";

        return "unknown"
    },

    isNixOS: function(){
        var os = BrowserUtil.getCurrentOS();
        return os === "unix" || os === "linux";
    },

    isMac: function(){
        var os = BrowserUtil.getCurrentOS();
        return os === "mac";
    },

    isAndroid: function(){
        var os = BrowserUtil.getCurrentOS();
        return os === "android";
    },

    isIOS: function(){
        var nP = navigator.platform;
        return nP == "iPad" || nP == "iPhone" || nP == "iPod" || nP == "iPhone Simulator" || nP == "iPad Simulator";
    },

    isWinPhone: function(){
        return navigator.userAgent.match(/Windows Phone/i);
    },

    isBlackBerry: function(){
        return navigator.userAgent.match(/BlackBerry/i);
    },

    isMobile: function(){
        if(BrowserUtil.isAndroid()
            || BrowserUtil.isIOS()
            || BrowserUtil.isWinPhone()
            || BrowserUtil.isBlackBerry()) return true;
        return false;
    },

    isIE: function(){
        var userAgent = navigator.userAgent;
        return $.browser.msie || (userAgent.indexOf("like Gecko") != -1 && userAgent.indexOf("rv") != -1);
    },

    isIE9: function(){
        return $.browser.msie && $.browser.version == 9;
    },

    isIE10: function(){
        return $.browser.msie && $.browser.version == 10;
    },

    isIPad: function(){
        return navigator.userAgent.match(/iPad/i) != null;
    },

    isIPhone: function (){
        return (
            //Detect iPhone
            (navigator.platform.indexOf("iPhone") != -1) ||
            //Detect iPod
            (navigator.platform.indexOf("iPod") != -1)
        );
    },

    isIPhone4: function(){
        return BrowserUtil.isIPhone() && (window.screen.height == (960 / 2));
    },

    isIPhone5: function(){
        return BrowserUtil.isIPhone() && (window.screen.height == (1136 / 2));
    },

    isChrome: function(){
        return /chrome/.test(navigator.userAgent.toLowerCase());
    },

    isFirefox: function(){
        return /firefox/.test(navigator.userAgent.toLowerCase());
    },

    isOpera: function(){
        return $.browser.opera;
    },

    isSafari: function(){
        return navigator.userAgent.indexOf("Safari") > -1;
    },

    isWebkit: function(){
        return $.browser.webkit;
    },

    getBrowserVersion: function(){
        return $.browser.version;
    },

    inIframe: function () {
        try {
            return window.self !== window.top;
        } catch (e) {
            return false;
        }
    },

    initWindowStateClasses: function(opt){

        opt = Util.extend({
            smallWidth: 767,
            mediumWidth: 991
        }, opt);

        var s1 = "state-big";
        var s2 = "state-medium";
        var s3 = "state-small";

        var w = $(window);
        var html = $("html");
        var checkState = function(){
            var width = w.width();
            if(width <= opt.smallWidth) {
                html.removeClass(s1).removeClass(s2).addClass(s3);
                return;
            }
            if(width <= opt.mediumWidth) {
                html.removeClass(s1).removeClass(s3).addClass(s2);
                return;
            }
            html.removeClass(s2).removeClass(s3).addClass(s1);
        }
        checkState();
        w.on('resize', checkState);
    },

    isSmallState: function(){
        return $("html").hasClass("state-small");
    }

};

BrowserUtil.initWindowStateClasses();


//Добавляем флаг браузера
if(window.BrowserUtil){

    function initHtmlClasses(){
        var html = $("html");
        if(BrowserUtil.isIE()) html.addClass("ie");
        if(BrowserUtil.isIE9()) html.addClass("ie9");
        if(BrowserUtil.isIE10()) html.addClass("ie10");
        if(BrowserUtil.isChrome()) html.addClass("chrome");
        if(BrowserUtil.isFirefox()) html.addClass("firefox");
        if(BrowserUtil.isOpera()) html.addClass("opera");
        if(BrowserUtil.isSafari() && ! BrowserUtil.isChrome()) html.addClass("safari");
        if(BrowserUtil.isNixOS()) html.addClass("nix");
        if(BrowserUtil.isMac()) {
            html.addClass("mac-os");
            if(BrowserUtil.isIPad()) {
                html.addClass("ipad");
                detectIpadVersionAsync(html);
            }
            else if(BrowserUtil.isIPhone()) html.addClass("iphone");
            else html.addClass("mac-pc");
        }
        if(BrowserUtil.isAndroid()){
            html.addClass("android");
        }
        if(BrowserUtil.isMobile()){
            html.addClass("any-mobile");
        }

        var version = BrowserUtil.getBrowserVersion();
        if(version){
            var shortVersion = version;
            var splitsByDots = version.split(".");
            if(splitsByDots.length > 0) shortVersion = splitsByDots[0];
            html.addClass("ver-"+shortVersion);
        }

    }

    //from http://stackoverflow.com/questions/7400489
    //result will be set after initHtmlClasses() method end
    function detectIpadVersionAsync(html){
        window.ondevicemotion = function(event) {
            if (navigator.platform.indexOf("iPad") != -1) {
                var version = 1;
                if (event.acceleration) version += window.devicePixelRatio;
                html.addClass("ipad-"+version);
            }
            window.ondevicemotion = null;
        }
    }

    initHtmlClasses();

}