Code/**
 * Created by LT on 2013/6/16.
 * Common.js
 * 对原生JS对象的扩展
 * Object、Array、String、Date、Ajax、Cookie
 */

;(function(){
Object.extend =function(targetObj,fnJson){
    for(var fnName in fnJson){
        targetObj[fnName]=fnJson[fnName];
    }
    return targetObj;
};


/**
 * 对Object的扩展
 */
Object.extend(Object.prototype,{
    values: function() {   // 一个静态方法, 传入一个对象, 返回该对象中所有属性所对应的值, 构成数组返回
        var values = [];
        for (var property in this) values.push(this[property]); // 将每个属性的值压入到一个数组中
        return values;
    },
    clone: function(object) {    // 一个静态方法, 传入一个对象, 克隆一个新对象并返回
        return Object.extend({}, object);
    },
    getType:function(){
        return Object.prototype.toString.call(this).match(/\[object (.*?)\]/)[1].toLowerCase();
    },
    toJson:function(){
        return JSON.stringify(this);
    },
    serialize:function(){
        if(JSON.parse)
            return JSON.parse(this);
        switch(this.constructor){
            case Object:
                var str = "{";
                for(var o in obj){
                    str += ‘"‘+o + ‘"‘+ ":" + Serialize(obj[o]) +",";
                }
                if(str.substr(str.length-1) == ",")
                    str = str.substr(0,str.length -1);
                return str + "}";
                break;
            case Array:
                var str = "{";
                if(str.substr(str.length-1) == ",") {
                    str = str.substr(0, str.length - 1);
                }
                for(var o in obj){
                    str += ‘"‘+o + ‘"‘+ ":"+Serialize(obj[o]) +",";
                }
                return str + "}";
                break;
            case Boolean:
                return "\"" + obj.toString() + "\"";
                break;
            case Date:
                return "\"" + obj.toString() + "\"";
                break;
            case Function:
                break;
            case Number:
                return "\"" + obj.toString() + "\"";
                break;
            case String:
                return "\"" + obj.toString() + "\"";
                break;
        }
    }
});


/**
 * 对Array的扩展
 */
Object.extend(Array.prototype,{
    clear:function(){
        this.length=0;
        return this;
    },
    lastIndexOfArr:function(obj){
        if(this.lastIndexOf(obj)){
            return this.lastIndexOf(obj);
        }else{
            this.reverse();
            return this.length-1-this.indexOfArr(obj);
        }
    },
    contain:function(obj){
        return this.indexOfArr(obj)>-1;
    },
    insertAt:function(index,obj){
        this.splice(index,0,obj);
        return this;
    },
    removeAt:function(index){
        this.splice(index,1);
        return this;
    },
    first:function(){
        return this[0];
    },
    indexOfArr:function(obj){
        //如果浏览器支持原生的indexOf，则调用原生的方法
        if(this.indexOf){
            return this.indexOf(obj);
        }else{
            var i=0;len=this.length;
            for(i;i<len;i++){
                if(this[i]==obj)
                    return i;
                return -1;
            }
        }
    },
    last:function(){
        return this[this.length-1];
    },
    distinct:function(){
        this.sort();
        var res=[this[0]];
        for(var i = 1; i < this.length; i++)
        {
            if( this[i] !== res[res.length-1])
            {
                res.push(this[i]);
            }
        }
        return res;
    },
    sumNum:function(){
        if(this.reduce){
            return this.reduce(function(partial,value){
                return partial+value;
            })
        }else{
           return eval(arr.join(‘+‘));
        }
    },
    sortNumAsc:function(){
        this.sort(function(a,b){
            return a-b;
        });
        return this;
    },
    sortNumDesc:function(){
        this.sort(function(a,b){
            return b-a;
        });
        return this;
    },
    maxNum:function(){
        return this.sortNumAsc()[this.length-1];
    },
    minNum:function(){
        return this.sortNumAsc()[0];
    },
    toUpperCase:function(){
        if(this.map){
            return this.map.call(this,function(elem){
                return elem.toUpperCase();
            })
        }else{
            return this.toLocaleString().toUpperCase().split(‘,‘);
        }
    },
    toLowerCase:function(){
        if(this.map){
            return this.map.call(this,function(elem){
                return elem.toLowerCase();
            })
        }else{
            return this.toLocaleString().toLowerCase().split(‘,‘);
        }

    }
})


/**
 * 对String的扩展
 */
Object.extend(String.prototype,{
    /*
    *使用示例如下
    *var s = String.format("S{0}T{1}","n","e");//结果：SnTe
    */
    format:function(){
        var res = arguments[0];
        for(var i= 0,len=arguments.length-1; i<len; i++){
            var b=new Regexp("\\{"+i+"\\","gm");
            res= res.replace(b,arguments[i+1]);
        }
        return res;
    },
    append:function(str){
        return this.concat(str);
    },
    leftpad:function(len,str){
        if(arguments.length===1) str=‘0‘;
        var res = new StringBuilder();
        for (var i= 0,c=len-this.length; i<c; i++){
            res.append(str);
        }
        res.append(this);
        return res.toString();
    },
    rightpad:function(len, str){
        if(arguments.length===1) str=‘0‘;
        var res = new StringBuilder();
        res.append(this);
        for (var i= 0,c=len-this.length; i<c; i++){
            res.append(str);
        }
        return res.toString();
    },
    trim:function(){
       return this.replace(/(^\s+)|(\s+$)/g,‘‘);
    },
    ltrim:function(){
        return this.replace(/^\s+/g,‘‘);
    },
    rtrim:function(){
        return this.replace(/\s+$/g,‘‘);
    },
    startWith:function(str,ignorCase){
        if(str.length>this.length)return false;
        if(ignorCase){
            return this.toLowerCase().indexOf(str.toLowerCase())===0;
        }else{
            return this.indexOf(str)===0;
        }
    },
    endWith:function(str,ignorCase){
        if(str.length>this.length)return false;
        if(ignorCase){
            return this.toLowerCase().lastIndexOf(str.toLowerCase())===this.length-str.length;
        }else{
            return this.lastIndexOf(str)===this.length-str.length;
        }
    },
    removeCharAt:function(index){
        if (index < 0 || index >= this.length) {
            return this.valueOf();
        }
        else if (index == 0) {
            return this.substring(1, this.length);
        }
        else if (index == this.length - 1) {
            return this.substring(0, this.length - 1);
        }
        else {
            return this.substring(0, index) + this.substring(index + 1);
        }
    },
    removeStr:function(start,end){
        if (start == end) {
            return this.deleteCharAt(start);
        }
        else {
            if (start > end) {
                var temp = start;
                start = end;
                end = temp;
            }
            if (start < 0) {
                start = 0;
            }
            if (end > this.length - 1) {
                end = this.length - 1;
            }
            return this.substring(0, start) + this.substring(end +1 , this.length);
        }

    },
    equalIgnoreCase:function(str){
        return this.toLowerCase()===str.toLowerCase();
    },
    insertAfter:function(index,str){
        return this.slice(0,index+1)+str+this.slice(index+1);
    },
    insertBefore:function(index,str){
        return this.slice(0,index)+str+this.slice(index);
    },
    isAllNumber:function(){
        for (var i = 0; i < this.length; i++) {
            if (this.charAt(i) < ‘0‘ || this.charAt(i) > ‘9‘) {
                return false;
            }
        }
        return true;
    },
    isInt:function(){
        return /^[1-9]\d$/.test(this);
    },
    isNullOrEmpty:function(){
        if(this===null||this.trim()===""){
            return true;
        }
        return false;
    },
    isPhoneNum:function(){
        var pattern = /^0{0,1}(13[0-9]|14[6|7]|15[0-3]|15[5-9]|18[0-3]|18[5-9])[0-9]{8}$/;
        return pattern.test(this);
    },
    getCharLength:function(){
        var temp = 0;
        for (var i = 0; i < this.length; i++) {
            if (this.charCodeAt(i) > 255) {
                temp += 2;
            }
            else {
                temp += 1;
            }
        }
        return temp;
    },
    getNum:function(){
        return this.replace(/[^d]/g, "");
    },
    getEn:function(){
        return this.replace(/[^A-Za-z]/g, "");
    },
    getCn:function(){
        return this.replace(/[^u4e00-u9fa5uf900-ufa2d]/g, "");
    },
    left:function(n){
        return this.slice(0, n);
    },
    right:function(n){
        return this.slice(this.length - n);
    },
    encodeHTML:function(){
        if(this.isNullOrEmpty()) return this;
        var str = this;

        str=str.replace(/&/g,"&amp;");
        str=str.replace(/</g,"&lt;");
        str=str.replace(/>/g,"&gt;");
        str=str.replace(/\‘/g,"&apos;");
        str=str.replace(/\"/g,"&quot;");
        str=str.replace(/\t/g,"&nbsp;&nbsp;&nbsp;&nbsp;");
        str=str.replace(/\s+/g," ");
        str=str.replace(/\s/g,"&nbsp;");
        str=str.replace(/\n/g,"&BR");

        return str;

    },
    decodeHTML:function(){
        if(this.isNullOrEmpty()) return this;
        var str = this;

        str=str.replace(/&amp;/g,"&");
        str=str.replace(/&lt;/g,"<");
        str=str.replace(/&gt;/g,">");
        str=str.replace(/&apos;/g,"\‘");
        str=str.replace(/&quot;/g,"\"");
        str=str.replace(/&nbsp;&nbsp;&nbsp;&nbsp;/g,"\t");
        str=str.replace(/&nbsp;/g," ");
        str=str.replace(/&BR/g,"\r\n");

        return str;
    },
    truncate:function(len,str){
        if(this.length<=len){
            return this;
        }else{
            return this.substring(0,len)+str;
        }
    },
    getUrlQuery:function(name){
        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
        var r = this.substr(this.indexOf("\?") + 1).match(reg);
        if (r != null) return unescape(r[2]);
        return null;
    },
    appendUrlPram:function(name,val){
        var index = this.indexOf(name + ‘=‘);
        if (index > 0) {
            var endPos = this.indexOf(‘&‘, index);
            if (endPos > index) return this.replace(‘/‘ + this.substr(index, endPos - index) + ‘/‘, name + ‘=‘ + val);
            else return this.substr(0, index) + name + ‘=‘ + val;
        }
        else return this.indexOf(‘?‘) > 0 ? (this + ‘&‘ + name + ‘=‘ + val) : (this + ‘?‘ + name + ‘=‘ + val);
    }
});


/**
 * 添加StringBuilder类，提高对字符串操作的效率
 */
function StringBuilder(str){
    this._strings= new Array();
    this.append(str);
}
Object.extend(StringBuilder.prototype,{
    append:function(str){
        this._strings.push(a);
        return this;
    },
    toString:function(){
        var a = (arguments.length==0)?"":arguments[0];
        return this._strings.join(a);
    }
});


/**
 * 对Date的扩展方法
 */
Object.extend(Date.prototype,{
    format:function(formatStr){
        var o = {
            ‘M+‘:this.getMonth()+1,//月
            ‘d+‘:this.getDate(),//日
            ‘h+‘:this.getHours(),//小时
            ‘m+‘:this.getMinutes(),//分
            ‘s+‘:this.getSeconds(),//秒
            ‘q+‘:Math.floor((this.getMonth()+3)/3),//季度
            ‘S‘:this.getMilliseconds() //毫秒
        }
        if(/(y+)/.test(formatStr)){
            formatStr = formatStr.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
        }
        for(var k in o){
            if (new RegExp("(" + k + ")").test(fomartStr))
                formatStr = formatStr.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
            return formatStr;
        }
    },
    addDays:function(num){
        this.setDate(this.getDate+num);
        return this;
    },
    addWeeks:function(num){
        return this.addDays(num*7);
    },
    addMonths:function(num){
        var d = this.getDate();
        this.setMonth(this.getMonth()+num);
        if(this.getDate<d){
            this.setDate(0);
        }
        return this;
    },
    addYears:function(num){
        var m = this.getMonth();
        this.setFullYear(this.getFullYear()+num);
        if(m<this.getMonth()){
            this.setDate(0);
        }
        return this;
    },
    isValiDate:function(dateStr,formatStr){
        if(!dateStr){
            return false;
        }
        if(!formatStr){
            formatStr = "yyyy-MM-dd";//默认格式：yyyy-MM-dd
        }
        if(dateStr.length!=formatStr.length){
            return false;
        }else{
            if(formatStr=="yyyy-MM-dd"||formatStr=="YYYY-MM-DD"){
                var r1=/^(((((([02468][048])|([13579][26]))(00))|(d{2}(([02468][48])|([13579][26]))))-((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-([0-2][0-9]))))|(d{2}(([02468][1235679])|([13579][01345789]))-((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-(([0-1][0-9])|(2[0-8]))))))$/;
                return r1.test(dateStr);
            }else if(formatStr=="yyyy/MM/dd"||formatStr=="YYYY/MM/DD"){
                var r2=/^(((((([02468][048])|([13579][26]))(00))|(d{2}(([02468][48])|([13579][26]))))\/((((0[13578])|(1[02]))\/(([0-2][0-9])|(3[01])))|(((0[469])|(11))\/(([0-2][0-9])|(30)))|(02\/([0-2][0-9]))))|(d{2}(([02468][1235679])|([13579][01345789]))\/((((0[13578])|(1[02]))\/(([0-2][0-9])|(3[01])))|(((0[469])|(11))\/(([0-2][0-9])|(30)))|(02\/(([0-1][0-9])|(2[0-8]))))))$/;
                return r2.test(dateStr);
            }else if(formatStr=="MM-dd-yyyy"||formatStr=="MM-DD-YYYY"){
                var r3=/^((((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-([0-2][0-9])))-(((([02468][048])|([13579][26]))(00))|(d{2}(([02468][48])|([13579][26])))))|(((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-(([0-1][0-9])|(2[0-8])))))-d{2}(([02468][1235679])|([13579][01345789])))$/;
                return r3.test(dateStr);
            }else if(formatStr=="MM/dd/yyyy"||formatStr=="MM/DD/YYYY"){
                var r4=/^((((((0[13578])|(1[02]))\/(([0-2][0-9])|(3[01])))|(((0[469])|(11))\/(([0-2][0-9])|(30)))|(02\/([0-2][0-9])))\/(((([02468][048])|([13579][26]))(00))|(d{2}(([02468][48])|([13579][26])))))|(((((0[13578])|(1[02]))\/(([0-2][0-9])|(3[01])))|(((0[469])|(11))\/(([0-2][0-9])|(30)))|(02\/(([0-1][0-9])|(2[0-8])))))\/d{2}(([02468][1235679])|([13579][01345789])))$/;
                return r4.test(dateStr);
            }else{
//                throw  new Error(‘日期格式不正确‘);
                return false;
            }
        }
        return false;
    },
    isValiTime:function(timeStr, formatStr){
        if(!timeStr){
            return false;
        }
        if(!formatStr){
            formatStr = "hh:mm:ss";//默认格式：hh:mm:ss
        }
        if(timeStr.length!=formatStr.length){
            return false;
        }else{
            if(formatStr=="hh:mm:ss"){
                var r1=/^(([0-1][0-9])|(2[0-3])):([0-5][0-9]):([0-5][0-9])$/;
                return r1.test(timeStr);
            }else if(formatStr=="hh-mm-ss"){
                var r2=/^(([0-1][0-9])|(2[0-3]))-([0-5][0-9])-([0-5][0-9])$/;
                return r2.test(timeStr);
            }else if(formatStr=="hh/mm/ss"){
                var r3=/^(([0-1][0-9])|(2[0-3]))\/([0-5][0-9])\/([0-5][0-9])$/;
                return r3.test(timeStr);
            }else{
//                throw  new Error("时间格式不正确！");
                return false;
            }
        }
        return false;
    },
    isValiDateTime:function(dateTimeStr){
        var dateTimeReg=/^(((((([02468][048])|([13579][26]))(00))|(d{2}(([02468][48])|([13579][26]))))-((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-([0-2][0-9]))))|(d{2}(([02468][1235679])|([13579][01345789]))-((((0[13578])|(1[02]))-(([0-2][0-9])|(3[01])))|(((0[469])|(11))-(([0-2][0-9])|(30)))|(02-(([0-1][0-9])|(2[0-8]))))))(s{1}(([0-1][0-9])|(2[0-3])):([0-5][0-9]):([0-5][0-9]))?$/
        return dateTimeReg.test(dateTimeStr);
    },
    isLeapYear:function(){
        return (this.getYear()%4==0&&((this.getYear()!=0)||(this.getYear()%400==0)));
    },
    daysBetween:function(dateOne,dateTwo){
        if((dateOne instanceof Date)==false||(dateTwo instanceof Date)==false){
            return 0;
        }else{
            return Math.abs(Math.floor((dateOne.getTime()-dateTwo.getTime())/1000/60/60/24));
        }
    },
    dateDiff:function(dtEnd, field){
        var dtStart = this;
        if((dtEnd instanceof Date)==false){
            return 0;
        }else{
            if(!field){
                field = "d";
            }
            switch(field){
                case ‘Y‘:
                case ‘y‘:return dtEnd.getFullYear() - dtStart.getFullYear();break;
                case ‘M‘:return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-dtStart.getFullYear())*12) - (dtStart.getMonth()+1);break;
                case ‘W‘:
                case ‘w‘:return parseInt((dtEnd - dtStart) / (86400000 * 7));break;
                case ‘D‘:
                case ‘d‘:return parseInt((dtEnd - dtStart) / 86400000);break;
                case ‘H‘:
                case ‘h‘:return parseInt((dtEnd - dtStart) / 3600000);break;
                case ‘m‘:return parseInt((dtEnd - dtStart) / 60000);break;
                case ‘S‘:
                case ‘s‘:return parseInt((dtEnd - dtStart) / 1000);break;
                default: return 0;
            }
            return 0;
        }
    },
    toArray:function(){
        var myArray = new Array();
        myArray[0] = this.getFullYear();
        myArray[1] = this.getMonth();
        myArray[2] = this.getDate();
        myArray[3] = this.getHours();
        myArray[4] = this.getMinutes();
        myArray[5] = this.getSeconds();
        return myArray;
    },
    datePart:function(field){
        if(!field){
            field = "d";
        }
        var Week = [‘日‘,‘一‘,‘二‘,‘三‘,‘四‘,‘五‘,‘六‘];
        switch (field){
            case ‘Y‘ :
            case ‘y‘ :return this.getFullYear();break;
            case ‘M‘ :return (this.getMonth()+1);break;
            case ‘W‘ :
            case ‘w‘ :return Week[this.getDay()];break;
            case ‘D‘ :
            case ‘d‘ :return this.getDate();break;
            case ‘H‘ :
            case ‘h‘ :return this.getHours();break;
            case ‘m‘ :return this.getMinutes();break;
            case ‘s‘ :return this.getSeconds();break;
            default:return this.getDate();
        }
        return this.getDate();
    }
});


/**
 * 对ajax的扩展
 * 调用示例：
 * new HttpAjax({
        type:"get",
        url:"testAjax.php",
        data:{"name":‘Jack‘},
        success:function(data){
            console.log(data);
        },
        failure:function(data){
            console.log(data);
        },
        isAsyn:false
    });
 */
HttpAjax = (function(){
    function HttpAjax(options){
        var settings={
            type:‘post‘,        //请求类型
            url:‘‘,             //请求地址
            data:{"id":-1},     //json格式的参数
            success:function(){},//成功的回调函数
            failure:function(){},//失败的回调函数
            isAsyn:true           //是否为异步
        };
        this.options = Object.extend(settings,options);

        Object.extend(HttpAjax.prototype,{
            _createXhr:function(){
                if (typeof XMLHttpRequest !== ‘undefined‘) {
                    return new XMLHttpRequest();
                }
                else if (typeof ActiveXObject !== ‘undefined‘) {
                    var versions = [‘MSXML2.XMLHttp.6.0‘, ‘MSXML2.XMLHttp.3.0‘, ‘MSXML2.XMLHttp‘];
                    for (var i = 0, len = versions.length; i < len; i++) {
                        try {
                            var xhr = new ActiveXObject(versions[i]);
                            this.IsCreateOk = versions[i];
                            return xhr;
                        }
                        catch (e) { }
                    }
                    if (typeof this.IsCreateOk === ‘undefined‘) {
                        throw new Error("您的浏览器版本过低，无法创建异步对象，请升级您的浏览器！");
                    }
                }
            },
            _encodeData:function(paramters){
                var data = [];
                for (var name in paramters) {
                    //将数组中的数据以=拼接后再添加到data数组中 [name=aa,age=11]
                    var _regesp = /%20/g; //空格的正则表达式
                    var _value = paramters[name].toString(); //获取值
                    data.push(encodeURIComponent(name).replace(_regesp, ‘+‘) + "=" + encodeURIComponent(_value).replace(_regesp, ‘+‘));
                }
                //以&将数组元素拼接后返回 如：name=aa&age=11
                return data.join("&");
            },
            _regCallback:function(xhr){
                var _this=this;
                xhr.onreadystatechange = function(){
                    if (xhr.readyState == 4) {
                        if (xhr.status >= 200 && xhr.status < 300 || xhr.status == 300) {
                            _this.options.success(_this._getResponseData(xhr), xhr.statusText);
                        } else {
                            _this.options.failure(xhr.status, xhr.statusText);
                        }
                    }
                }
            },
            _getResponseData:function(xhr){
                var responseType = xhr.getResponseHeader("Content-Type");
                switch (responseType) {
                    case ‘text/xml‘:
                        return xhr.responseXML;
                    case ‘text/json‘:
                    case ‘text/javascript‘:
                    case ‘application/javascript‘:
                    case ‘application/x-javascript‘:
                        return eval(‘(‘ + xhr.responseText + ‘)‘);
                    default:
                        return xhr.responseText;
                };
            },
            _init:function(options){
                this.options=options;
                if(this.options.url=="") return;
                this.xhr = this._createXhr();//创建异步对象
                this._regCallback(this.xhr);//注册回调事件

                //根据请求类型，发送异步请求
                if(this.options.type.toLowerCase()=="post"){
                    this._post(this.xhr);
                }
                else{
                    this._get(this.xhr);
                }
            },
            _post:function(xhr){
                this.xhr=xhr;
                this.data=this._encodeData(this.options.data);
                this.url=this.options.url+"?d=" + parseInt(Math.random()*100+1,10);
                this.asyn=!!this.options.isAsyn;

                xhr.open("POST", this.url, this.asyn);
                xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
                xhr.send(this.data);
            },
            _get:function(xhr){
                this.xhr=xhr;
                this.data=this._encodeData(this.options.data);
                this.url=this.options.url+‘?‘ + this.data + ‘&d=‘ + parseInt(Math.random()*100+1,10);
                this.asyn=!!this.options.isAsyn;

                xhr.open(‘GET‘, this.url, this.asyn);
                xhr.send(null);
            }
        });
        this._init(this.options);
    };
    return HttpAjax;
})(window);


/**
 * 对cookie的扩展
 */
Object.extend(Document.cookie.prototype,{
    setCookie:function(name,value,days){
        var d = new Date();
        d.setDate(d.getDate()+days);
        document.cookie=name+‘=‘+value+‘;expires‘+d;
    },
    getCookie:function(name){
        var arr = document.cookie.split(‘,‘);
        for(var i= 0,len=arr.length; i<len; i++){
            var keyV = arr[i].split(‘=‘);
           if(keyV[0]==name){
               return keyV[1];
           }
        }
        return ‘‘;
    },
    removeCookie:function(name){
        setCookie(name,‘‘,-1);
    }
});


})(window)