javascript浏览器检测

<script type="text/javascript">
 
/**
 * 获取浏览器类型以及版本号
 * 支持国产浏览器:猎豹浏览器、搜狗浏览器、傲游浏览器、360极速浏览器、360安全浏览器、
 * QQ浏览器、百度浏览器等.
 * 支持国外浏览器:IE,Firefox,Chrome,safari,Opera等.
 * 使用方法:
 * 获取浏览器版本:Browser.client.version
 * 获取浏览器名称(外壳):Browser.client.name
 * @author:xuzengqiang
 * @since :2015-1-27 10:26:11
**/
var Browser=Browser || (function(window){
    var document = window.document,
        navigator = window.navigator,
        agent = navigator.userAgent.toLowerCase(),
        //IE8+支持.返回浏览器渲染当前文档所用的模式
        //IE6,IE7:undefined.IE8:8(兼容模式返回7).IE9:9(兼容模式返回7||8)
        //IE10:10(兼容模式7||8||9)
        IEMode = document.documentMode,    
        //chorme
        chrome = window.chrome || false,
        System = {
            //user-agent
            agent : agent,
            //是否为IE
            isIE : /msie/.test(agent),
            //Gecko内核
            isGecko: agent.indexOf("gecko")>0 && agent.indexOf("like gecko")<0,
            //webkit内核
            isWebkit: agent.indexOf("webkit")>0,
            //是否为标准模式
            isStrict: document.compatMode === "CSS1Compat",
            //是否支持subtitle
            supportSubTitle:function(){
                return "track" in document.createElement("track");
            },
            //是否支持scoped
            supportScope:function(){
                return "scoped" in document.createElement("style");
            },
            //获取IE的版本号
            ieVersion:function(){
                try {
                   return agent.match(/msie ([\d.]+)/)[1] || 0;
                } catch(e) {
                   console.log("error");
                   return IEMode;
                }
            },
            //Opera版本号
            operaVersion:function(){
                try {
                    if(window.opera) {
                        return agent.match(/opera.([\d.]+)/)[1];
                    } else if(agent.indexOf("opr") > 0) {
                        return agent.match(/opr\/([\d.]+)/)[1];
                    }
                } catch(e) {
                    console.log("error");
                    return 0;
                }
            },
            //描述:version过滤.如31.0.252.152 只保留31.0
            versionFilter:function(){
                if(arguments.length === 1 && typeof arguments[0] === "string") {
                    var version = arguments[0];
                        start = version.indexOf(".");
                    if(start>0){
                        end = version.indexOf(".",start+1);
                        if(end !== -1) {
                            return version.substr(0,end);
                        }
                    }
                    return version;
                } else if(arguments.length === 1) {
                    return arguments[0];
                }
                return 0;
            }
        };
         
    try {
        //浏览器类型(IE、Opera、Chrome、Safari、Firefox)
        System.type = System.isIE?"IE":
            window.opera || (agent.indexOf("opr") > 0)?"Opera":
            (agent.indexOf("chrome")>0)?"Chrome":
            //safari也提供了专门的判定方式
            window.openDatabase?"Safari":
            (agent.indexOf("firefox")>0)?"Firefox":     
            'unknow';
             
        //版本号  
        System.version = (System.type === "IE")?System.ieVersion():
            (System.type === "Firefox")?agent.match(/firefox\/([\d.]+)/)[1]:
            (System.type === "Chrome")?agent.match(/chrome\/([\d.]+)/)[1]:
            (System.type === "Opera")?System.operaVersion():
            (System.type === "Safari")?agent.match(/version\/([\d.]+)/)[1]:
            "0";
         
        //浏览器外壳
        System.shell=function(){
            //遨游浏览器
            if(agent.indexOf("maxthon") > 0) {
                System.version = agent.match(/maxthon\/([\d.]+)/)[1] || System.version ;
                return "傲游浏览器";
            }
            //QQ浏览器
            if(agent.indexOf("qqbrowser") > 0) {
                System.version = agent.match(/qqbrowser\/([\d.]+)/)[1] || System.version ;
                return "QQ浏览器";
            }
             
            //搜狗浏览器
            if( agent.indexOf("se 2.x")>0) {
                return '搜狗浏览器';
            }
             
            //Chrome:也可以使用window.chrome && window.chrome.webstore判断
            if(chrome && System.type !== "Opera") {
                var external = window.external,
                    clientInfo = window.clientInformation,
                    //客户端语言:zh-cn,zh.360下面会返回undefined
                    clientLanguage = clientInfo.languages;
                 
                //猎豹浏览器:或者agent.indexOf("lbbrowser")>0
                if( external && 'LiebaoGetVersion' in external) {
                     return '猎豹浏览器';
                }
                //百度浏览器
                if (agent.indexOf("bidubrowser")>0) {
                    System.version = agent.match(/bidubrowser\/([\d.]+)/)[1] ||
                        agent.match(/chrome\/([\d.]+)/)[1];
                    return "百度浏览器";
                }
                //360极速浏览器和360安全浏览器
                if( System.supportSubTitle() && typeof clientLanguage === "undefined") {
                    //object.key()返回一个数组.包含可枚举属性和方法名称
                    var storeKeyLen = Object.keys(chrome.webstore).length,
                        v8Locale = "v8Locale" in window;
                    return storeKeyLen > 1? '360极速浏览器':'360安全浏览器';  
                }
                return "Chrome";
            }
            return System.type;      
        };
 
        //浏览器名称(如果是壳浏览器,则返回壳名称)
        System.name = System.shell();
        //对版本号进行过滤过处理
        System.version = System.versionFilter(System.version);
         
    } catch(e) {
        console.log("error");
    }
    return {
        client:System
    };
     
})(window);
alert(Browser.client.name+" "+Browser.client.version);
</script>
posted @ 2016-08-22 14:55  __sarah  Views(1260)  Comments(0)    收藏  举报