打造基于jQuery的日期选择控件

终于把jQuery拼写正确了哈,哈哈javascript也是区分大小写的,所以确实不能写错,今天我来和大家分享的是日期选择控件的实现,功能也许不够强大,但是能够满足需求。

我之前也写过(正确的说是改过一个日期选择控件,点击这里查看),看下截图哈,也很酷的,windows风格哦。
打造基于jQuery的日期选择控件

但是也有些问题,第一画日历有点慢,第二兼容性不太好IE Only,第三它不是基于jQuery的哈哈。

那还是老规矩,做之前先看下效果

打造基于jQuery的日期选择控件  打造基于jQuery的日期选择控件

这下是更酷的Ext风格了。
从上图我们可以看出这个控件其实有两个视图一个日期月视图,还有一个是年月选择视图。
1:还是先从HTML入手

日期控件确定HTML其实还是比较简单,因为明摆着是列表的数据格式,当然主要是采用table了。
两个视图分别用两个Div包裹,控制div的显示隐藏即可以切换视图了。完整的HTMl结构大家可以用IEDeveloper看一下Demo的结构,我自己截了一个图
打造基于jQuery的日期选择控件

2:根据HTML和效果图编写CSS

其实因为是Ext风格的,所以直接copy的ext的css和图片。。

CSS也就不分析了,直接上代码。

因为博客园的语法高亮不支持CSS,所以就不贴出来了,给个下载地址吧:

http://xuanye.cloudapp.net/Theme/Default/dp.css

所有用到的图片:

打造基于jQuery的日期选择控件打造基于jQuery的日期选择控件打造基于jQuery的日期选择控件

3:搞定了CSS之后呢,就开始编写我们javascript了。

上来就是一个完整代码

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;(function($) {
    var userAgent = window.navigator.userAgent.toLowerCase();
    $.browser.msie8 = $.browser.msie && /msie 8\.0/i.test(userAgent);
    $.browser.msie7 = $.browser.msie && /msie 7\.0/i.test(userAgent);
    $.browser.msie6 = !$.browser.msie8 && !$.browser.msie7 && $.browser.msie && /msie 6\.0/i.test(userAgent);
 
    Date.prototype.Format = function(format) {
        var o = {
            "M+": this.getMonth() + 1,
            "d+": this.getDate(),
            "h+": this.getHours(),
            "H+": this.getHours(),
            "m+": this.getMinutes(),
            "s+": this.getSeconds(),
            "q+": Math.floor((this.getMonth() + 3) / 3),
            "w": "0123456".indexOf(this.getDay()),
            "S": this.getMilliseconds()
        };
        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;
    };
    function DateAdd(interval, number, idate) {
        number = parseInt(number);
        var date;
        if (typeof (idate) == "string") {
            date = idate.split(/\D/);
            eval("var date = new Date(" + date.join(",") + ")");
        }
 
        if (typeof (idate) == "object") {
            date = new Date(idate.toString());
        }
        switch (interval) {
            case "y": date.setFullYear(date.getFullYear() + number); break;
            case "m": date.setMonth(date.getMonth() + number); break;
            case "d": date.setDate(date.getDate() + number); break;
            case "w": date.setDate(date.getDate() + 7 * number); break;
            case "h": date.setHours(date.getHours() + number); break;
            case "n": date.setMinutes(date.getMinutes() + number); break;
            case "s": date.setSeconds(date.getSeconds() + number); break;
            case "l": date.setMilliseconds(date.getMilliseconds() + number); break;
        }
        return date;
    };
    $.fn.datepicker = function(o) {
        var def = {
            weekStart: 0,
            weekName: ["日", "一", "二", "三", "四", "五", "六"], //星期的格式
            monthName: ["一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二"], //月份的格式
            monthp: "月",
            Year: new Date().getFullYear(), //定义年的变量的初始值
            Month: new Date().getMonth() + 1, //定义月的变量的初始值
            Day: new Date().getDate(), //定义日的变量的初始值
            today: new Date(),
            btnOk: " 确定 ",
            btnCancel: " 取消 ",
            btnToday: "今天",
            inputDate: null,
            onReturn: false,
            version: "1.1",
            applyrule: false, //function(){};return rule={startdate,endate};
            showtarget: null,
            picker: ""
        };
        $.extend(def, o);
        var cp = $("#BBIT_DP_CONTAINER");
        if (cp.length == 0) {
            var cpHA = [];
            cpHA.push("<div id='BBIT_DP_CONTAINER' class='bbit-dp' style='width:175px;z-index:999;'>");
            if ($.browser.msie6) {
                cpHA.push('<iframe style="position:absolute;z-index:-1;width:100%;height:100%;top:0;left:0;scrolling:no;" frameborder="0" src="about:blank"></iframe>');
            }
            cpHA.push("<table class='dp-maintable' cellspacing='0' cellpadding='0' style='width:175px;'><tbody><tr><td>");
            //头哟
            cpHA.push("<table class='bbit-dp-top' cellspacing='0'><tr><td class='bbit-dp-top-left'> <a id='BBIT_DP_LEFTBTN' href='javascript:void(0);' title='向前一个月'>&nbsp;</a></td><td class='bbit-dp-top-center' align='center'><em><button id='BBIT_DP_YMBTN'>九月 2009</button></em></td><td class='bbit-dp-top-right'><a id='BBIT_DP_RIGHTBTN' href='javascript:void(0);' title='向后一个月'>&nbsp;</a></td></tr></table>");
            cpHA.push("</td></tr>");
            cpHA.push("<tr><td>");
            //周
            cpHA.push("<table id='BBIT_DP_INNER' class='bbit-dp-inner' cellspacing='0'><thead><tr>");
            //生成周
            for (var i = def.weekStart, j = 0; j < 7; j++) {
                cpHA.push("<th><span>", def.weekName[i], "</span></th>");
                if (i == 6) { i = 0; } else { i++; }
            }
            cpHA.push("</tr></thead>");
            //生成tBody,需要重新生成的
            cpHA.push("<tbody></tbody></table>");
            //生成tBody结束
            cpHA.push("</td></tr>");
            cpHA.push("<tr><td class='bbit-dp-bottom' align='center'><button id='BBIT-DP-TODAY'>", def.btnToday, "</button></td></tr>");
            cpHA.push("</tbody></table>");
            //输出下来框
            cpHA.push("<div id='BBIT-DP-MP' class='bbit-dp-mp'  style='z-index:auto;'><table id='BBIT-DP-T' style='width: 175px; height: 193px' border='0' cellspacing='0'><tbody>");
            cpHA.push("<tr>");
            //1月,7月 按钮两个
            cpHA.push("<td class='bbit-dp-mp-month' xmonth='0'><a href='javascript:void(0);'>", def.monthName[0], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='6'><a href='javascript:void(0);'>", def.monthName[6], "</a></td><td class='bbit-dp-mp-ybtn' align='middle'><a id='BBIT-DP-MP-PREV' class='bbit-dp-mp-prev'></a></td><td class='bbit-dp-mp-ybtn' align='middle'><a id='BBIT-DP-MP-NEXT' class='bbit-dp-mp-next'></a></td>");
            cpHA.push("</tr>");
            cpHA.push("<tr>");
            cpHA.push("<td class='bbit-dp-mp-month' xmonth='1'><a href='javascript:void(0);'>", def.monthName[1], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='7'><a href='javascript:void(0);'>", def.monthName[7], "</a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td>");
            cpHA.push("</tr>");
            cpHA.push("<tr>");
            cpHA.push("<td class='bbit-dp-mp-month' xmonth='2'><a href='javascript:void(0);'>", def.monthName[2], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='8'><a href='javascript:void(0);'>", def.monthName[8], "</a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td>");
            cpHA.push("</tr>");
            cpHA.push("<tr>");
            cpHA.push("<td class='bbit-dp-mp-month' xmonth='3'><a href='javascript:void(0);'>", def.monthName[3], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='9'><a href='javascript:void(0);'>", def.monthName[9], "</a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td>");
            cpHA.push("</tr>");
 
            cpHA.push("<tr>");
            cpHA.push("<td class='bbit-dp-mp-month' xmonth='4'><a href='javascript:void(0);'>", def.monthName[4], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='10'><a href='javascript:void(0);'>", def.monthName[10], "</a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td>");
            cpHA.push("</tr>");
 
            cpHA.push("<tr>");
            cpHA.push("<td class='bbit-dp-mp-month' xmonth='5'><a href='javascript:void(0);'>", def.monthName[5], "</a></td><td class='bbit-dp-mp-month bbit-dp-mp-sep' xmonth='11'><a href='javascript:void(0);'>", def.monthName[11], "</a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td><td class='bbit-dp-mp-year'><a href='javascript:void(0);'></a></td>");
            cpHA.push("</tr>");
            cpHA.push("<tr class='bbit-dp-mp-btns'>");
            cpHA.push("<td colspan='4'><button id='BBIT-DP-MP-OKBTN' class='bbit-dp-mp-ok'>", def.btnOk, "</button><button id='BBIT-DP-MP-CANCELBTN' class='bbit-dp-mp-cancel'>", def.btnCancel, "</button></td>");
            cpHA.push("</tr>");
 
            cpHA.push("</tbody></table>");
            cpHA.push("</div>");
            cpHA.push("</div>");
 
            var s = cpHA.join("");
            $(document.body).append(s);
            var cp = $("#BBIT_DP_CONTAINER");
 
            initevents();
        }
        function initevents() {
            //1 today btn;
            $("#BBIT-DP-TODAY").click(returntoday);
            cp.click(returnfalse);
            $("#BBIT_DP_INNER tbody").click(tbhandler);
            $("#BBIT_DP_LEFTBTN").click(prevm);
            $("#BBIT_DP_RIGHTBTN").click(nextm);
            $("#BBIT_DP_YMBTN").click(showym);
            $("#BBIT-DP-MP").click(mpclick);
            $("#BBIT-DP-MP-PREV").click(mpprevy);
            $("#BBIT-DP-MP-NEXT").click(mpnexty);
            $("#BBIT-DP-MP-OKBTN").click(mpok);
            $("#BBIT-DP-MP-CANCELBTN").click(mpcancel);
        }
        function mpcancel() {
            $("#BBIT-DP-MP").animate({ top: -193 }, { duration: 200, complete: function() { $("#BBIT-DP-MP").hide(); } });
            return false;
        }
        function mpok() {
            def.Year = def.cy;
            def.Month = def.cm + 1;
            def.Day = 1;
            $("#BBIT-DP-MP").animate({ top: -193 }, { duration: 200, complete: function() { $("#BBIT-DP-MP").hide(); } });
            writecb();
            return false;
        }
        function mpprevy() {
            var y = def.ty - 10
            def.ty = y;
            rryear(y);
            return false;
        }
        function mpnexty() {
            var y = def.ty + 10
            def.ty = y;
            rryear(y);
            return false;
        }
        function rryear(y) {
            var s = y - 4;
            var ar = [];
            for (var i = 0; i < 5; i++) {
                ar.push(s + i);
                ar.push(s + i + 5);
            }
            $("#BBIT-DP-MP td.bbit-dp-mp-year").each(function(i) {
                if (def.Year == ar[i]) {
                    $(this).addClass("bbit-dp-mp-sel");
                }
                else {
                    $(this).removeClass("bbit-dp-mp-sel");
                }
                $(this).html("<a href='javascript:void(0);'>" + ar[i] + "</a>").attr("xyear", ar[i]);
            });
        }
        function mpclick(e) {
            var panel = $(this);
            var et = e.target || e.srcElement;
            var td = getTd(et);
            if (td == null) {
                return false;
            }
            if ($(td).hasClass("bbit-dp-mp-month")) {
                if (!$(td).hasClass("bbit-dp-mp-sel")) {
                    var ctd = panel.find("td.bbit-dp-mp-month.bbit-dp-mp-sel");
                    if (ctd.length > 0) {
                        ctd.removeClass("bbit-dp-mp-sel");
                    }
                    $(td).addClass("bbit-dp-mp-sel")
                    def.cm = parseInt($(td).attr("xmonth"));
                }
            }
            if ($(td).hasClass("bbit-dp-mp-year")) {
                if (!$(td).hasClass("bbit-dp-mp-sel")) {
                    var ctd = panel.find("td.bbit-dp-mp-year.bbit-dp-mp-sel");
                    if (ctd.length > 0) {
                        ctd.removeClass("bbit-dp-mp-sel");
                    }
                    $(td).addClass("bbit-dp-mp-sel")
                    def.cy = parseInt($(td).attr("xyear"));
                }
            }
            return false;
        }
        function showym() {
            var mp = $("#BBIT-DP-MP");
            var y = def.Year;
            def.cy = def.ty = y;
            var m = def.Month - 1;
            def.cm = m;
            var ms = $("#BBIT-DP-MP td.bbit-dp-mp-month");
            for (var i = ms.length - 1; i >= 0; i--) {
                var ch = $(ms[i]).attr("xmonth");
                if (ch == m) {
                    $(ms[i]).addClass("bbit-dp-mp-sel");
                }
                else {
                    $(ms[i]).removeClass("bbit-dp-mp-sel");
                }
            }
            rryear(y);
            mp.css("top", -193).show().animate({ top: 0 }, { duration: 200 });
        }
        function getTd(elm) {
            if (elm.tagName.toUpperCase() == "TD") {
                return elm;
            }
            else if (elm.tagName.toUpperCase() == "BODY") {
                return null;
            }
            else {
                var p = $(elm).parent();
                if (p.length > 0) {
                    if (p[0].tagName.toUpperCase() != "TD") {
                        return getTd(p[0]);
                    }
                    else {
                        return p[0];
                    }
                }
            }
            return null;
        }
        function tbhandler(e) {
            var et = e.target || e.srcElement;
            var td = getTd(et);
            if (td == null) {
                return false;
            }
            var $td = $(td);
            if (!$(td).hasClass("bbit-dp-disabled")) {
                var s = $td.attr("xdate");
                var arrs = s.split("-");
                cp.data("indata", new Date(arrs[0], parseInt(arrs[1], 10) - 1, arrs[2]));
                returndate();
            }
            return false;
        }
        function returnfalse() {
            return false;
        }
        function prevm() {
            if (def.Month == 1) {
                def.Year--;
                def.Month = 12;
            }
            else {
                def.Month--
            }
            writecb();
            return false;
        }
        function nextm() {
            if (def.Month == 12) {
                def.Year++;
                def.Month = 1;
            }
            else {
                def.Month++
            }
            writecb();
            return false;
        }
        function returntoday() {
            cp.data("indata", new Date());
            returndate();
        }
        function returndate() {
            var ct = cp.data("ctarget");
            var ck = cp.data("cpk");
            var re = cp.data("onReturn");
            var ndate = cp.data("indata")
            var ads = cp.data("ads");
            var ade = cp.data("ade");
            var dis = false;
            if (ads && ndate < ads) {
                dis = true;
            }
            if (ade && ndate > ade) {
                dis = true;
            }
            if (dis) {
                return;
            }
            if (re && jQuery.isFunction(re)) {
                re.call(ct[0], cp.data("indata"));
            }
            else {
                ct.val(cp.data("indata").Format("yyyy-MM-dd"));
            }
            ck.attr("isshow", "0");
            cp.removeData("ctarget").removeData("cpk").removeData("indata").removeData("onReturn")
            .removeData("ads").removeData("ade");
            cp.css("visibility", "hidden");
            ct = ck = null;
        }
        function writecb() {
            var tb = $("#BBIT_DP_INNER tbody");
            $("#BBIT_DP_YMBTN").html(def.monthName[def.Month - 1] + def.monthp + " " + def.Year);
            var firstdate = new Date(def.Year, def.Month - 1, 1);
 
            var diffday = def.weekStart - firstdate.getDay();
            var showmonth = def.Month - 1;
            if (diffday > 0) {
                diffday -= 7;
            }
            var startdate = DateAdd("d", diffday, firstdate);
            var enddate = DateAdd("d", 42, startdate);
            var ads = cp.data("ads");
            var ade = cp.data("ade");
            var bhm = [];
            var tds = def.today.Format("yyyy-MM-dd");
            var indata = cp.data("indata");
            var ins = indata != null ? indata.Format("yyyy-MM-dd") : "";
            for (var i = 1; i <= 42; i++) {
                if (i % 7 == 1) {
                    bhm.push("<tr>");
                }
                var ndate = DateAdd("d", i - 1, startdate);
                var tdc = [];
                var dis = false;
                if (ads && ndate < ads) {
                    dis = true;
                }
                if (ade && ndate > ade) {
                    dis = true;
                }
                if (ndate.getMonth() < showmonth) {
                    tdc.push("bbit-dp-prevday");
                }
                else if (ndate.getMonth() > showmonth) {
                    tdc.push("bbit-dp-nextday");
                }
 
                if (dis) {
                    tdc.push("bbit-dp-disabled");
                }
                else {
                    tdc.push("bbit-dp-active");
                }
 
                var s = ndate.Format("yyyy-MM-dd");
                if (s == tds) {
                    tdc.push("bbit-dp-today");
                }
                if (s == ins) {
                    tdc.push("bbit-dp-selected");
                }
 
                bhm.push("<td class='", tdc.join(" "), "' title='", ndate.Format("yyyy-MM-dd"), "' xdate='", ndate.Format("yyyy-M-d"), "'><a href='javascript:void(0);'><em><span>", ndate.getDate(), "</span></em></a></td>");
                if (i % 7 == 0) {
                    bhm.push("</tr>");
                }
            }
            tb.html(bhm.join(""));
        }
        var dateReg = /^(\d{1,4})(-|\/|.)(\d{1,2})\2(\d{1,2})$/;
 
        return $(this).each(function() {
 
            var obj = $(this).addClass("bbit-dp-input");
            var picker = $(def.picker);
            def.showtarget == null && obj.after(picker);
            picker.click(function(e) {
                var isshow = $(this).attr("isshow");
                //先隐藏
                var me = $(this);
 
                if (cp.css("visibility") == "visible") {
                    cp.css(" visibility", "hidden");
                }
                if (isshow == "1") {
                    me.attr("isshow", "0");
                    cp.removeData("ctarget").removeData("cpk").removeData("indata").removeData("onReturn");
                    return false;
                }
                var v = obj.val();
                if (v != "") {
                    v = v.match(dateReg);
                }
                if (v == null || v == "") {
                    def.Year = new Date().getFullYear();
                    def.Month = new Date().getMonth() + 1;
                    def.Day = new Date().getDate();
                    def.inputDate = null
                }
                else {
                    def.Year = parseInt(v[1], 10);
                    def.Month = parseInt(v[3], 10);
                    def.Day = parseInt(v[4], 10);
                    def.inputDate = new Date(def.Year, def.Month - 1, def.Day);
                }
                cp.data("ctarget", obj).data("cpk", me).data("indata", def.inputDate).data("onReturn", def.onReturn);
                if (def.applyrule && $.isFunction(def.applyrule)) {
                    var rule = def.applyrule.call(obj, obj[0].id);
                    if (rule) {
                        if (rule.startdate) {
                            cp.data("ads", rule.startdate);
                        }
                        else {
                            cp.removeData("ads");
                        }
                        if (rule.enddate) {
                            cp.data("ade", rule.enddate);
                        }
                        else {
                            cp.removeData("ade");
                        }
                    }
                }
                else {
                    cp.removeData("ads").removeData("ade")
                }
                writecb();
 
 
                $("#BBIT-DP-T").height(cp.height());
                var t = def.showtarget || obj;
                var pos = t.offset();
 
 
                var height = t.outerHeight();
                var newpos = { left: pos.left, top: pos.top + height };
                var w = cp.width();
                var h = cp.height();
                var bw = document.documentElement.clientWidth;
                var bh = document.documentElement.clientHeight;
                if ((newpos.left + w) >= bw) {
                    newpos.left = bw - w - 2;
                }
                if ((newpos.top + h) >= bh) {
                    newpos.top = pos.top - h - 2;
                }
                if (newpos.left < 0) {
                    newpos.left = 10;
                }
                if (newpos.top < 0) {
                    newpos.top = 10;
                }
                $("#BBIT-DP-MP").hide();
                newpos.visibility = "visible";
                cp.css(newpos);
 
 
 
                //cp.show();
                $(this).attr("isshow", "1");
 
                $(document).one("click", function(e) {
                    me.attr("isshow", "0");
                    cp.removeData("ctarget").removeData("cpk").removeData("indata");
                    cp.css("visibility", "hidden");
                });
 
                return false;
            });
        });
    };
})(jQuery);

那接着就是分析一下实现的主要过程和一些注意的要点:

首先还是套版化编写jQuery控件的套子:

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;(function($) {     
    //也可以使用$.fn.extend(datepicker:function(o){})     
    $.fn.datepicker= function(o) { 
                }
})(jQuery);

这样做的好处上篇已经讲过了 ,就不重述了

接着就是定义默认的参数,已在代码中添加了注释说明这些参数的意义,有几个参数是为了多语言而设置的,如weekName,monthName

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var def = {
            weekStart: 0,//一周开始的是星期几0代表星期天
            weekName: ["日", "一", "二", "三", "四", "五", "六"], //星期的格式
            monthName: ["一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二"], //月份的格式
            monthp: "月",//月的后缀
            Year: new Date().getFullYear(), //定义年的变量的初始值
            Month: new Date().getMonth() + 1, //定义月的变量的初始值
            Day: new Date().getDate(), //定义日的变量的初始值
            today: new Date(),//today
            btnOk: " 确定 ",//确定按钮的文字
            btnCancel: " 取消 ",//取消按钮的文字
            btnToday: "今天", //今天按钮的文字
            inputDate: null,//无用,只是在代码中会用它存放数据
            onReturn: false,//当选择日期后回调的函数
            version: "1.0",//版本
            applyrule: false, //日期选择规则,可设置可选择的日期范围function(){};return rule={startdate,endate};
            showtarget: null, //显示载体,日历展开式所依赖的对象,默认是对象本身
            picker: "" //附加点击事件的对象
        };
    $.extend(def, o);//用传递过来的参数来填充默认

第二部自然是初始化月视图和年月选择视图的HTML了

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//给日期选择控件一个特殊的ID,获取这个ID的对象,判断如果对象存在,则直接使用
// 日期的HTML采用单例,即一个页面上只生成一份HTML
  var cp = $("#BBIT_DP_CONTAINER");
 
        if (cp.length == 0) {
            var cpHA = []; //老规矩还是用数组拼接html,最后用innerHTML的方式附加到容器,提升性能
            cpHA.push("<div id='BBIT_DP_CONTAINER' class='bbit-dp' style='width:175px;z-index:999;'>");
            if ($.browser.msie6) { //如果是IE6弹出层遮盖select
                cpHA.push('<iframe style="position:absolute;z-index:-1;width:100%;height:100%;top:0;left:0;scrolling:no;" frameborder="0" src="about:blank"></iframe>');
            }
            cpHA.push("<table class='dp-maintable' cellspacing='0' cellpadding='0' style='width:175px;'><tbody><tr><td>");
            //头哟
            cpHA.push("<table class='bbit-dp-top' cellspacing='0'><tr><td class='bbit-dp-top-left'> <a id='BBIT_DP_LEFTBTN' href='javascript:void(0);' title='向前一个月'>&nbsp;</a></td><td class='bbit-dp-top-center' align='center'><em><button id='BBIT_DP_YMBTN'>九月 2009</button></em></td><td class='bbit-dp-top-right'><a id='BBIT_DP_RIGHTBTN' href='javascript:void(0);' title='向后一个月'>&nbsp;</a></td></tr></table>");
            cpHA.push("</td></tr>");
            cpHA.push("<tr><td>");
            //周
            cpHA.push("<table id='BBIT_DP_INNER' class='bbit-dp-inner' cellspacing='0'><thead><tr>");
            //生成周
            for (var i = def.weekStart, j = 0; j < 7; j++) {
                cpHA.push("<th><span>", def.weekName[i], "</span></th>");
                if (i == 6) { i = 0; } else { i++; }
            }
         
            .....//省略若干代码
            cpHA.push("</tbody></table>");
            cpHA.push("</div>");
            cpHA.push("</div>");
 
            var s = cpHA.join("");
            $(document.body).append(s); //添加到body中
            cp = $("#BBIT_DP_CONTAINER"); //再获取一遍
 
            initevents(); //初始化事件
        }

这里有一个关键点,就是日期的html输出和事件初始化只做一次,因为基本上一页上同时不会打开两个。还有就是生成html中有一些特殊的自定义属性哦,仔细看下就会发现的,这些属性在后面的时间处理中都有很大的作用。那么来看一下事件吧

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$("#BBIT-DP-TODAY").click(returntoday);//今天按钮的事件
         cp.click(returnfalse);//阻止冒泡
         $("#BBIT_DP_INNER tbody").click(tbhandler);//给月视图中间body添加click事件而不是给每个td添加
         $("#BBIT_DP_LEFTBTN").click(prevm);//上个月
         $("#BBIT_DP_RIGHTBTN").click(nextm);//下个月
         $("#BBIT_DP_YMBTN").click(showym);//切换到年月视图
         $("#BBIT-DP-MP").click(mpclick);//年月视图的点击事件,同样用于分发
         $("#BBIT-DP-MP-PREV").click(mpprevy);//上一年
         $("#BBIT-DP-MP-NEXT").click(mpnexty);//下一年
         $("#BBIT-DP-MP-OKBTN").click(mpok);//ok按钮的事件
         $("#BBIT-DP-MP-CANCELBTN").click(mpcancel);//cancel按钮的事件

给每一个需要点击的元素加上事件哦,这里有两个地方比较特殊,一个是月视图的点击事件,传统的做法就是给每个td都加事件,但是这个时候我的td还没有呢,但是如果在每次生成td的时候来附加事件,那么就由影响性能,所以直接给容器加了点击事件,通过对事件源的判断来分发事件,另外一个年月选择视图,也是和上面一样的逻辑,那么我们就拿月视图的点击事件来分析一下,其实每一个td生成的时候都会注册一个xdate自定义属性 打造基于jQuery的日期选择控件 ,来看一下tbhandler函数

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function tbhandler(e) {
            var et = e.target || e.srcElement; //找到事件源
            var td = getTd(et); //事件源递归往上找td
            if (td == null) {
                return false;
            }
            var $td = $(td);
            if (!$(td).hasClass("bbit-dp-disabled")) {//如果不是禁用状态
                var s = $td.attr("xdate");//获取td的自定义属性日期数据
                var arrs = s.split("-");
                cp.data("indata", new Date(arrs[0], parseInt(arrs[1], 10) - 1, arrs[2]));
                returndate();//返回日期
            }
            return false;
        }

所有的日期选择事件初始化好了(一次性的),接着就要给每一个的picker添加点击事件了

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return $(this).each(function() {
            var obj = $(this).addClass("bbit-dp-input");//给input添加样式
            var picker = $(def.picker);//获取picker对象
            //如果showtarget不为null这将picker注册到input的后面
            //否则用户自己处理picker的位置,即picker在页面上本身就已经存在
            //大家可以看看示例中1,3调用的区别
            def.showtarget == null && obj.after(picker);
             
            picker.click(function(e) {
 
...//省略代码
});

picker的点击事件比较长,单独拿出来讲一下我想比较好,第一个要点是显示隐藏事件的处理,第二个是窗口边缘问题的处理,还有一个就是日期范围规则的处理。

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function(e) {
//获取当前是否显示
                var isshow = $(this).attr("isshow");
                 
                var me = $(this);
                //如果显示着,则隐藏,用于处理点击一下picker显示,再点击picker隐藏的逻辑
                if (cp.css("visibility") == "visible") {
                    cp.css(" visibility", "hidden");
                }
                //同样是如果显示着
                if (isshow == "1") {
                    me.attr("isshow", "0");
                    //remover临时数据,因为是单例所以要表示当前是哪个input
                    cp.removeData("ctarget").removeData("cpk").removeData("indata").removeData("onReturn");
                    return false; //阻止冒泡
                }
                //如果隐藏着,获取input的值
                var v = obj.val();
                if (v != "") {
                    v = v.match(dateReg);//验证一下格式是否正确
                }
                if (v == null || v == "") {//格式不正确或为空则用当前日期
                    def.Year = new Date().getFullYear();
                    def.Month = new Date().getMonth() + 1;
                    def.Day = new Date().getDate();
                    def.inputDate = null
                }
                else {
                    //否则使用input的日期
                    def.Year = parseInt(v[1], 10);
                    def.Month = parseInt(v[3], 10);
                    def.Day = parseInt(v[4], 10);
                    def.inputDate = new Date(def.Year, def.Month - 1, def.Day);
                }
                //注册临时数据,因为是单例的缘故
                cp.data("ctarget", obj).data("cpk", me).data("indata", def.inputDate).data("onReturn", def.onReturn);
                //调用规则,返回可选的日期范围
                if (def.applyrule && $.isFunction(def.applyrule)) {
                    var rule = def.applyrule.call(obj, obj[0].id);
                    if (rule) {
                        if (rule.startdate) {
                            cp.data("ads", rule.startdate);
                        }
                        else {
                            cp.removeData("ads");
                        }
                        if (rule.enddate) {
                            cp.data("ade", rule.enddate);
                        }
                        else {
                            cp.removeData("ade");
                        }
                    }
                }
                else {
                    //不存在则删除限制
                    cp.removeData("ads").removeData("ade")
                }
                //画月日历内容td了
                writecb();
 
                $("#BBIT-DP-T").height(cp.height());
                //获取显示依附的对象
                var t = def.showtarget || obj;
                //获取对象的位置
                var pos = t.offset();
 
                //获取对象的高度
                var height = t.outerHeight();
                //日期选择框的位置是依附对象的位置加上本身高度
                var newpos = { left: pos.left, top: pos.top + height };
                //以下都是处理窗口边界问题
                var w = cp.width();
                var h = cp.height();
                var bw = document.documentElement.clientWidth;
                var bh = document.documentElement.clientHeight;
                if ((newpos.left + w) >= bw) {
                    newpos.left = bw - w - 2;
                }
                if ((newpos.top + h) >= bh) {
                    newpos.top = pos.top - h - 2;
                }
                if (newpos.left < 0) {
                    newpos.left = 10;
                }
                if (newpos.top < 0) {
                    newpos.top = 10;
                }
                //强制默认是月日期视图
                $("#BBIT-DP-MP").hide();
                newpos.visibility = "visible";
                cp.css(newpos); //移动到对应位置并显示
 
                 $(this).attr("isshow", "1");
                //给document注册单次的click事件,解决打开日期选择器后,点击其他位置,隐藏日期选择器的问题
                $(document).one("click", function(e) {
                    me.attr("isshow", "0");
                    cp.removeData("ctarget").removeData("cpk").removeData("indata");
                    cp.css("visibility", "hidden");
                });
                     
                return false;//组织冒泡
            }

其他一些代码都是日期操作的函数,如上月下月等就不做介绍了,大家如果对代码上又任何问题都可以留言,我一定解答,最后是示例了

第一个示例是老老实实的演示Demo示例,有三种方式,也有调用方式的说明:

http://jscs.cloudapp.net/ControlsSample/dpdemo

第二个示例是我写的日程管理控件中结合datepicker的应用(大家可以先看看这个)

http://xuanye.cloudapp.net/

位置是:打造基于jQuery的日期选择控件打造基于jQuery的日期选择控件

是datepicker在我的创造中的应用,最后如果你觉得这边文章对你有所帮助,那就点击一下【推荐】

本文的地址:http://www.cnblogs.com/xuanye/archive/2009/10/27/1590992.html

转载请保留上面的链接,谢谢

出处:http://www.cnblogs.com/xuanye/archive/2009/10/27/1590992.html

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