/**
 * @fileOverview 前后端的公用工具类和方法封装
 * @author：Hbomb(zhouqq@yoho.cn) 
 * @date：2012-07-09
 */


/**
 * HTML编码
 */
exports.escapeHTML = function (ret)
{
    if (!ret)
	{
		return;
	}
	ret =  exports.unescapeHTML(ret);
	var div = document.createElement('div');
    var text = document.createTextNode(ret);
    div.appendChild(text);
    return div.innerHTML;
};
/**
 * HTML反编码
 */
exports.unescapeHTML = function (str)
{
    str=str+"";
    var ret = str.replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&amp;/g, '&');
    ret = ret.replace(/&quot;/g, '"');
    return ret;
};

/**
 * js对象克隆
 */
exports.IYOHO_clone = function (myObj)
{
    if (typeof(myObj) != 'object')
        return myObj;
	if (!myObj)
        return myObj;
    
    var myNewObj = {};
	
	if(myObj.length)
	{
		myNewObj = [];
	}
    
    for (var i in myObj)
        myNewObj[i] = IYOHO_clone(myObj[i]);
    
    return myNewObj;
};

/**
 * js object2Array
 */
exports.IYOHO_Object2Array = function (obj)
{
	var arr = [];
	for(var i in obj)
	{
		arr.push(obj[i]);
	}
	return arr;
};

/**
 * 时间格式化yyyy/mm/dd
 */
exports.timeFormat = function (dt, format)
{
    var dd = dt.getDate();
    var mm = dt.getMonth() + 1; // January is 0!
    var yyyy = dt.getFullYear();
    if (dd < 10)
    {
        dd = '0' + dd;
    }
    if (mm < 10)
    {
        mm = '0' + mm;
    }
    return yyyy + format + mm + format + dd;
};

/**
 * 获取url参数 
 */
exports.request = function (strName)
{
    var strHref = window.document.location.href;
    return _request(strHref, strName);
};
/**
 * 获取url参数 
 */
function _request(href, strName)
{
    var strHref = href;
    var intPos = strHref.indexOf("?");
    var strRight = strHref.substr(intPos + 1);
    
    var arrTmp = strRight.split("&");
    for (var i = 0; i < arrTmp.length; i++)
    {
        var arrTemp = arrTmp[i].split("=");
        
        if (arrTemp[0].toUpperCase() == strName.toUpperCase())
            return arrTemp[1];
    }
    return "";
}

/**
 * cookie set and get
 */
exports.cookie = function (name, value, options)
{
    if (typeof value != 'undefined')
    {
        options = options || {};
        if (value === null)
        {
            value = '';
            //options = $.extend({}, options);
            options.expires = -1;
        }
        var expires = '';
        if (options.expires &&
        (typeof options.expires == 'number' || options.expires.toUTCString))
        {
            var date;
            if (typeof options.expires == 'number')
            {
                date = new Date();
                date.setTime(date.getTime() +
                (options.expires * 24 * 60 * 60 * 1000));
            }
            else
            {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString();
        }
        var path = options.path ? '; path=' + (options.path) : '';
        var domain = options.domain ? '; domain=' + (options.domain) : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
    }
    else
    {
        var cookieValue = null;
        if (document.cookie && document.cookie !== '')
        {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++)
            {
                var cookie = exports.trim(cookies[i]);
                if (cookie.substring(0, name.length + 1) == (name + '='))
                {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
    
};

exports.trim = function( text )
{
    if(String.prototype.trim)
    {
        return text == null?
                "":
               String.prototype.trim.call( text );
    }
    else
    {
        var trimLeft = /^\s+/;
        var trimRight = /\s+$/;
        return text == null?
            "":
            text.toString().replace( trimLeft, "" ).replace( trimRight, "" );  
    }             
};

/**
 * 检查email邮箱
 */
exports.IYOHO_isEmail = function (str)
{
    var reg = /^\s*([A-Za-z0-9_-]+(\.\w+)*@(\w+\.)+\w{2,3})\s*$/;
    return reg.test(str);
};

/**
 * 检查qq号
 */
exports.IYOHO_isQQ = function (str)
{
    var reg = /^[1-9]\d{4,10}$/;
    return reg.test(str);
};

/**
 * 检查电话
 */
exports.IYOHO_isTel = function (str)
{
    var reg = /^\s*[.0-9]{8,11}\s*$/;
    return reg.test(str);
};


/**
 * 检查邮编
 */
exports.IYOHO_isPostcode = function(str)
{
    var reg = /^[0-9]\d{5}(?!\d)/;
    return reg.test(str);
};
/**
 * 检测姓名非法字符
 */
exports.IYOHO_isUserName = function (str)
{
    var reg = /^[^@\/\'\\\"#$%&\^\*]+$/;
    return reg.test(str);
};

/**
 * 检测是否合法url
 */
exports.IYOHO_isURL = function (str)
{
	var reg = /^((http(s)?|ftp|telnet|news|rtsp|mms):\/\/)?(((\w(\-*\w)*\.)+[a-zA-Z]{2,4})|(((1\d\d|2([0-4]\d|5[0-5])|[1-9]\d|\d).){3}(1\d\d|2([0-4]\d|5[0-5])|[1-9]\d|\d).?))(:\d{0,5})?(\/+.*)*$/;
	return reg.test(str);
};

/**
 * 根据日期获取星座
 */
/**
 * 摩羯座(12/22 - 1/19)、水瓶座(1/20 - 2/18)、双鱼座(2/19 - 3/20)、牡羊座(3/21 - 4/20)、金牛座(4/21 -
 * 5/20)、 双子座(5/21 - 6/21)、巨蟹座(6/22 - 7/22)、狮子座(7/23 - 8/22)、处女座(8/23 -
 * 9/22)、天秤座(9/23 - 10/22)、 天蝎座(10/23 - 11/21)、射手座(11/22 - 12/21)
 */
exports.getZodiac = function (month, day)
{
    var d = new Date(1999, month - 1, day, 0, 0, 0);
    var arr = [];
    arr.push(["摩羯座", new Date(1999, 0, 1, 0, 0, 0)]);
    arr.push(["水瓶座", new Date(1999, 0, 20, 0, 0, 0)]);
    arr.push(["双鱼座", new Date(1999, 1, 19, 0, 0, 0)]);
    arr.push(["牧羊座", new Date(1999, 2, 21, 0, 0, 0)]);
    arr.push(["金牛座", new Date(1999, 3, 21, 0, 0, 0)]);
    arr.push(["双子座", new Date(1999, 4, 21, 0, 0, 0)]);
    arr.push(["巨蟹座", new Date(1999, 5, 22, 0, 0, 0)]);
    arr.push(["狮子座", new Date(1999, 6, 23, 0, 0, 0)]);
    arr.push(["处女座", new Date(1999, 7, 23, 0, 0, 0)]);
    arr.push(["天秤座", new Date(1999, 8, 23, 0, 0, 0)]);
    arr.push(["天蝎座", new Date(1999, 9, 23, 0, 0, 0)]);
    arr.push(["射手座", new Date(1999, 10, 22, 0, 0, 0)]);
    arr.push(["摩羯座", new Date(1999, 11, 22, 0, 0, 0)]);
    for (var i = arr.length - 1; i >= 0; i--)
    {
        if (d >= arr[i][1]) 
            return arr[i][0];
    }
};

/**
 * 根据年份获取生肖 
 */
exports.getShengxiao= function (yyyy)
{

    var arr = ['猴', '鸡', '狗', '猪', '鼠', '牛', '虎', '兔', '龙', '蛇', '马', '羊'];
    return /^\d{4}$/.test(yyyy) ? arr[yyyy % 12] : null;
};

/**
 * 数组去重复 
 */
exports.unique = function (data)
{
    data = data || [];
    var a = {};
    for (var i = 0, len = data.length; i < len; i++)
    {
        var v = data[i];
        if ('undefined' == typeof(a[v]))
        {
            a[v] = 1;
        }
    }
    data.length = 0;
    for (var i in a)
    {
        data[data.length] = i;
    }
    
    return data;
};

/**
 *  生成一个不重复的别名
 */
exports.genDefID = function(str)
{
    var time = new Date().getTime() + "";
    var id = str + "_" + (time).substring(time.length - 6) + "_" +
    (Math.round(Math.random() * 1000));
    return id;
};

/**
 * 获取纯字符长度
 */
exports.fucCheckLength = function (strTemp)
{
    var i, sum;
    sum = 0;
    for (i = 0; i < strTemp.length; i++)
    {
        if ((strTemp.charCodeAt(i) >= 0) && (strTemp.charCodeAt(i) <= 255))
            sum = sum + 1;
        else
            sum = sum + 2;
    }
    return sum;
};

/**
 * 截字封装（字符串，长度）
 */
exports.limitWords = function (str, len, havedot)
{
    var ret = "";
    var str_ = exports.unescapeHTML(str);
    if (exports.fucCheckLength(str_) > len)
    {
        str = exports.unescapeHTML(str);
        ret = subStringByByte(str, 0, len - 1);
        ret = exports.escapeHTML(ret);
        havedot || (ret += "...");
    }
    else
    {
        ret = str;
    }
    return ret;
};

/**
 * 截字
 * @param {} str   需要截字的字符串
 * @param {} idx1  开始位置
 * @param {} idx2  结束位置
 * @return {}
 */
function subStringByByte (str, idx1, idx2)
{
    var n = 0, start = str.length, end = str.length;
    
    for (var i = 0; i < str.length; i++) 
    {
        if (n <= idx1) 
        {
            start = i;
        }
        if (str.charCodeAt(i) < 128) 
        {
            n++;
        }
        else 
        {
            n += 2;
        }
        
        if (n > idx2) 
        {
            end = i;
            break;
        }
    }
    return str.substring(start, end);
};

/**
 * 检测Capslock按键
 */
exports.checkCapsLock = function (e) 
{
	valueCapsLock = e.which;
  	if (valueCapsLock >= 65 && valueCapsLock <= 90 && !e.shiftKey) 
  	{
		return true;
	}
	else
	{
	    return false;
	}
};

/**
 * 获得DOM窗口相对于window的位置
 */
exports.getPos = function (obj) 
{
	var curLeft = 0, curTop = 0;
	if (obj.offsetParent) 
	{
		while(obj.offsetParent)
		{
			curLeft += obj.offsetLeft;
			curTop  += obj.offsetTop;
			obj      = obj.offsetParent;
		}
	};
	return [curTop, curLeft];
};

/**
 * 获得相关的属性的方法
 */
exports.getCssVal = function (o, key)
{
	return o.currentStyle? o.currentStyle[key] : document.defaultView.getComputedStyle(o,false)[key]; 	
};

/**
 * 判断是否数组
 */
exports.isArray = function(params)
{
    return Object.prototype.toString.apply(params) === '[object Array]';
};

/**
 * 日期的格式化
 */
Date.prototype.format = function(format) //author: meizz 
{
     var o = { 
        "M+" : this.getMonth()+1, //month 
        "d+" : this.getDate(),    //day 
        "h+" : this.getHours(),   //hour 
        "m+" : this.getMinutes(), //minute 
        "s+" : this.getSeconds(), //second 
        "q+" : Math.floor((this.getMonth()+3)/3),  //quarter 
        "S"  : this.getMilliseconds() //millisecond 
    };
    if(/(y+)/.test(format)) 
    {
        format=format.replace(RegExp.$1, (this.getFullYear()+"").substr(4 - RegExp.$1.length)); 
    }
    for(var k in o)
    {
        if(new RegExp("("+ k +")").test(format)) 
        {
            format = format.replace(RegExp.$1, RegExp.$1.length==1 ? o[k] : ("00"+ o[k]).substr((""+ o[k]).length)); 
        }
    }
    return format; 
};

//获取flash对象
exports.getFlash = function (movieName) 
{
    if (navigator.appName.indexOf("Microsoft") != -1&&navigator.appVersion.indexOf("MSIE 9.0")==-1) 
    {
      return window[movieName];
    }
    else
    {
      return document[movieName];
    }
};

//判断是否有history
exports.hasHistory = function()
{
    if ((navigator.userAgent.indexOf('MSIE') >= 0) && (navigator.userAgent.indexOf('Opera') < 0))
    { 
        if(history.length>0)
        { 
	        return true;
        } 
        else
        {
            return false;
        }
    } 
    else   
    { 
        if(history.length>1)
        { 
            return true;
        } 
        else
        {
            return false;
        }
    } 
};

// 判断对象是否是空对象
exports.isNullObj = function(obj)
{
    for(var i in obj)
    {
        if(obj.hasOwnProperty(i))
        {
            return false;
        }
    }
    return true;
};


/**
 * 获取鼠标在页面上的位置
 * @param ev        触发的事件
 * @return          x:鼠标在页面上的横向位置, y:鼠标在页面上的纵向位置
 */
exports.getMousePoint = function (ev) 
{
    // 定义鼠标在视窗中的位置
    var point = {
        x:0,
        y:0
    };
 
    // 如果浏览器支持 pageYOffset, 通过 pageXOffset 和 pageYOffset 获取页面和视窗之间的距离
    if(typeof window.pageYOffset != 'undefined') {
        point.x = window.pageXOffset;
        point.y = window.pageYOffset;
    }
    // 如果浏览器支持 compatMode, 并且指定了 DOCTYPE, 通过 documentElement 获取滚动距离作为页面和视窗间的距离
    // IE 中, 当页面指定 DOCTYPE, compatMode 的值是 CSS1Compat, 否则 compatMode 的值是 BackCompat
    else if(typeof document.compatMode != 'undefined' && document.compatMode != 'BackCompat') {
        point.x = document.documentElement.scrollLeft;
        point.y = document.documentElement.scrollTop;
    }
    // 如果浏览器支持 document.body, 可以通过 document.body 来获取滚动高度
    else if(typeof document.body != 'undefined') {
        point.x = document.body.scrollLeft;
        point.y = document.body.scrollTop;
    }
 
    // 加上鼠标在视窗中的位置
    point.x += ev.clientX;
    point.y += ev.clientY;
 
    // 返回鼠标在视窗中的位置
    return point;
}