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利用jmSlip写一个移动端顶部日历选择组件

可滚动选日期，并限制哪些日期可选和不可选。

主要用来根据后台返回生成一个日期选择器。

具体实现可关注jmslip: https://github.com/jiamao/jmSlip

示例：http://slip.jm47.com/demo/calendar/index.html

<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<meta content="width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no" name="viewport">

<meta content="yes" name="apple-mobile-web-app-capable">

<meta content="black" name="apple-mobile-web-app-status-bar-style">

<meta content="telephone=no" name="format-detection">

<meta content="email=no" name="format-detection">

<title>日历</title>

<style>

body,html{

    font-family: Helvetica;

    font-weight: 100;

}

.justify {

    display: -webkit-box;

    display: -webkit-flex;

    display: flex;

    -webkit-box-pack: justify;

    -webkit-justify-content: space-between;

    justify-content: space-between;

}

.cell-box {

    background: #fff;

    box-shadow: 0 2px 4px rgba(0,0,0,.05);

}

.date-wrap {

    padding: 17px 0 18px;

    overflow: hidden;

}

.date-wrap .hd {

    padding: 0 15px;

    font-size: 12px;

    color: #888;

}

.date-wrap .bd {

    padding-top: 13px;

}

.date-wrap .hd .week {

    font-size: 20px;

    line-height: 26px;

}

.date-wrap .btn-chief-hollow {

    min-width: 49px;

    display: inline-block;

    height: 28px;

    line-height: 28px;

    border: 1px solid #417ddf;

    border-radius: 3px;

    color: #417ddf;

    font-size: 12px;

    text-align: center;

    text-decoration: none;

}

.date-wrap .date-list {

    list-style: none;

    display: -webkit-box;

    white-space: nowrap;

    height: 52px;

    font-size: 0;

    margin: 0;

    padding: 0;

}

.date-wrap .date-list li {

    -webkit-box-flex: 1;

    text-align: center;

    display: inline-block;

    text-align: center;

    width: 50px;

    height: 52px;

    font-size: 0;

}

.date-wrap .date-list li .week {

    margin: 0;

    padding: 0;

    padding-bottom: 7px;

    font-size: 12px;

    color: #b2b2b2;

    line-height: 15px;

}

.date-wrap .date-list li .date {

    margin: 0;

    padding: 0;

    position: relative;

    margin: 0 auto;

    width: 30px;

    height: 30px;

    border-radius: 100%;

    font-size: 14px;

    color: #d3d3d3;

    line-height: 30px;

}

.date-wrap .date-list li.in-case .date {

    color: #000;

}

.date-wrap .date-list li.cur .date {

    background-color: #2f78ec;

    color: #fff;

}

</style>

<script src="http://mat1.gtimg.com/www/mobi/js/zepto.min.js"></script>

<script src="../../src/jmSlip.js"></script>

</head>

<body>

<div class="cell-box">

    <div class="date-wrap js-calendar">

        <div class="hd justify">

            <div class="lt">

                <p class="js-date">十月 2016</p>

                <p class="week js-week">星期一</p>

            </div>

            <div class="rt">

                <a class="btn-chief-hollow js-tap-on js-today" href="javascript:;">今日</a>

            </div>

        </div>

        <div class="bd">

            <div class="date-list-wrap js-calendar-days-container">

            <!-- 控制li

                 1.当日，加"cur"

                 2.有事件，加"in-case" -->

                <ul class="date-list js-calendar-days">

                    <li class="js-item in-case js-has-data" data-day="20161011">

                        <p class="week">二</p>

                         <p class="date">11</p>

                    </li>

                    <li class="js-item" data-day="20161012">

                        <p class="week">三</p>

                         <p class="date">12</p>

                    </li>

                    <li class="js-item in-case js-has-data" data-day="20161013">

                        <p class="week">四</p>

                         <p class="date">13</p>

                    </li>

                    <li class="js-item in-case js-has-data" data-day="20161014">

                        <p class="week">五</p>

                         <p class="date">14</p>

                    </li>

                    <li class="js-item" data-day="20161015">

                        <p class="week">六</p>

                         <p class="date">15</p>

                    </li>

                    <li class="js-item" data-day="20161016">

                        <p class="week">日</p>

                         <p class="date">16</p>

                    </li>

                    <li class="js-item in-case js-has-data" data-day="20161017">

                        <p class="week">一</p>

                         <p class="date">17</p>

                    </li>

                    <li class="js-item" data-day="20161018">

                        <p class="week">二</p>

                         <p class="date">18</p>

                    </li>

                    <li class="js-item in-case js-has-data" data-day="20161019">

                        <p class="week">三</p>

                         <p class="date">今日</p>

                    </li>

                    <li class="js-itema" data-day="20161020">

                        <p class="week">四</p>

                         <p class="date">20</p>

                    </li>

                    <li class="js-item" data-day="20161021">

                        <p class="week">五</p>

                         <p class="date">21</p>

                    </li>

                    <li class="js-item in-case js-has-data" data-day="20161022">

                        <p class="week">六</p>

                         <p class="date">22</p>

                    </li>

                    <li class="js-item" data-day="20161023">

                        <p class="week">日</p>

                         <p class="date">23</p>

                    </li>

                     <li class="js-item in-case js-has-data" data-day="20161024">

                        <p class="week">一</p>

                         <p class="date">24</p>

                    </li>

                     <li class="js-item in-case js-has-data" data-day="20161025">

                        <p class="week">二</p>

                         <p class="date">25</p>

                    </li>

                     <li class="js-item in-case js-has-data" data-day="20161026">

                        <p class="week">三</p>

                         <p class="date">26</p>

                    </li>

                     <li class="js-item in-case js-has-data" data-day="20161027">

                        <p class="week">四</p>

                         <p class="date">27</p>

                    </li>

                </ul>

            </div>

        </div>

    </div>

</div>

<br />

<br />

<div class="js-content"></div>

<script>

    var slipCalendar = new jmSlip($('.js-calendar-days-container'),'item',{

        mousewheel:true,//支持滚轮

        direction: 'x',

        page: $('.js-calendar-days li[data-day="20161019"]').index(),//默认选中20161019这天，当它为今天

        duration: 800,

        itemOffWidth: 0, //每个项的偏移量纠正

        //当滑动时自动选择回调，自定义控制是否可选

        selectHandler: function(curIndex, newIndex) {

            //获取自动选择的那一天，如果不是可选的，则选择它最近的一天

            var item = $('.js-calendar-days li').eq(newIndex);

            if(!item.hasClass('js-has-data')) {

                //如果是往后拉，则优先向后搜询可用的日期

                //只往前后同时搜4天，超过，则按用户拉的方向一直向下搜

                var der = curIndex > newIndex?-1:1;

                for(var i=1;i<5;i++) {

                    var index = newIndex+(i*der);

                    item = $('.js-calendar-days li').eq(index);

                    if(item.hasClass('js-has-data') && index != curIndex) return index;

                    index = newIndex-(i*der);

                    item = $('.js-calendar-days li').eq(index);

                    if(item.hasClass('js-has-data') && index != curIndex) return index;

                }

                //依然没有找到，则一直往前找

                //最长找三个月

                for(;i<93;i++) {

                    var index = newIndex+(i*der);

                    item = $('.js-calendar-days li').eq(index);

                    if(item.hasClass('js-has-data') && index != curIndex) return index;

                }

                //找不到可用的日期，则返回

                return false;

            }

        },

        onPageStart: function(index){

            //获取自动选择的那一天，如果不是可选的，则选择它最近的一天

            var item = $('.js-calendar-days li').eq(index);

            if(!item.hasClass('js-has-data')) return false;

        },

        onTouchMove: function(evt, offset) {

        },

        onPageEnd: function(oldPage,newPage) {

            //定位于选择的那一天

            var item = $('.js-calendar-days li').eq(newPage);

            if(item.hasClass('cur')) return;//如果它是已经被选中的，则直接返回，不需要再触发查询数据

            $('.js-calendar-days').find('li.cur').removeClass('cur');

            item.addClass('cur');

            //刷新其数据

            $('.js-content').html(item.attr('data-day'));

        }

    });

    //选中某个日期，则拉取它的数据

    //只能选择有数据的项

    $('.js-calendar-days').on('click', '.js-has-data', function(){

        if(!slipCalendar || $(this).hasClass('cur')) return;

        //定位于选择的那一天

        slipCalendar.go($(this).index());

    });

    $('.js-today').click(function(){

        slipCalendar.go($('.js-calendar-days li[data-day="20161019"]').index());

    });

</script>

</body>

</html>
04-14 09:15
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