从头开始构建多视图日历;每周查看算法

Question

我从头开始构建多视图日历。我有一个实现工作，将日期设置为正确的日期，并允许您切换月份。 我的这种执行HTML看起来像这样：

<div id="cal"> 
    <div class="header"> 
     <span class="left button" id="prev"> &lang; </span> 
     <span class="month-year" id="label"> June 2017 </span> 
     <span class="right button" id="next"> &rang; </span> 
    </div> 
    <table id="days"> 
     <td>sun</td> 
     <td>mon</td> 
     <td>tue</td> 
     <td>wed</td> 
     <td>thu</td> 
     <td>fri</td> 
     <td>sat</td> 
    </table> 
    <div id="cal-frame"> 
     <table class="curr"> 
     <tbody> 
      <tr><td class="nil"></td><td class="nil"></td><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr> 
      <tr><td>6</td><td>7</td><td>8</td><td>9</td><td>10</td><td class="today">11</td><td>12</td></tr> 
      <tr><td>13</td><td>14</td><td>15</td><td>16</td><td>17</td><td>18</td><td>19</td></tr> 
      <tr><td>20</td><td>21</td><td>22</td><td>23</td><td>24</td><td>25</td><td>26</td></tr> 
      <tr><td>27</td><td>28</td><td>29</td><td>30</td><td class="nil"></td><td class="nil"></td><td class="nil"></td></tr> 
     </tbody> 
     </table> 
    </div> 

，以及随之而来的JavaScript是这样的：

$(document).ready(function(){ 
     var CALENDAR = function() { 
      var wrap, label, 
        months = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]; 

      function init(newWrap) { 
       wrap  = $(newWrap || "#cal"); 
       label = wrap.find("#label"); 
       wrap.find("#prev").bind("click.calendar", function() { switchMonth(false); }); 
       wrap.find("#next").bind("click.calendar", function() { switchMonth(true); }); 
       label.bind("click", function() { switchMonth(null, new Date().getMonth(), new Date().getFullYear()); }); 
       label.click(); 
      } 

      function switchMonth(next, month, year) { 
       var curr = label.text().trim().split(" "), calendar, tempYear = parseInt(curr[1], 10); 
       if (!month) { 
        if (next) { 
         if (curr[0] === "December") { 
          month = 0; 
         } else { 
          month = months.indexOf(curr[0]) + 1; 
         } 
        } else { 
         if (curr[0] === "January") { 
          month = 11; 
         } else { 
          month = months.indexOf(curr[0]) - 1; 
         } 
        } 
       } 
       if (!year) { 
       if (next && month === 0) { 
        year = tempYear + 1; 
       } else if (!next && month === 11) { 
        year = tempYear - 1; 
       } else { 
        year = tempYear; 
       } 
       } 
       calendar = createCal(year, month); 
       $("#cal-frame", wrap) 
        .find(".curr") 
         .removeClass("curr") 
         .addClass("temp") 
        .end() 
        .prepend(calendar.calendar()) 
        .find(".temp") 
         .fadeOut("slow", function() { $(this).remove(); }); 

       $('#label').text(calendar.label); 
      } 

      function createCal(year, month) { 
       var day = 1, i, j, haveDays = true, 
       startDay = new Date(year, month, day).getDay(), 
       daysInMonths = [31, (((year%4==0)&&(year%100!=0))||(year%400==0)) ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31], 
       calendar = []; 
       if (createCal.cache[year]) { 
        if (createCal.cache[year][month]) { 
        return createCal.cache[year][month]; 
        } 
       } 
      else { 
       createCal.cache[year] = {}; 
      } 
      i = 0; 
      while (haveDays) { 
       calendar[i] = []; 
       for (j = 0; j < 7; j++) { 
        if (i === 0) { 
         if (j === startDay) { 
          calendar[i][j] = day++; 
          startDay++; 
         } 
        } else if (day <= daysInMonths[month]) { 
         calendar[i][j] = day++; 
        } else { 
         calendar[i][j] = ""; 
         haveDays = false; 
        } 
        if (day > daysInMonths[month]) { 
         haveDays = false; 
        } 
       } 
       i++; 
      } 
      if (calendar[5]) { 
      for (i = 0; i < calendar[5].length; i++) { 
       if (calendar[5][i] !== "") { 
        calendar[4][i] = "<span>" + calendar[4][i] + "</span><span>" + calendar[5][i] + "</span>"; 
       } 
      } 
      calendar = calendar.slice(0, 5); 
     } 
     for (i = 0; i < calendar.length; i++) { 
      calendar[i] = "<tr><td>" + calendar[i].join("</td><td>") + "</td></tr>"; 
     } 
     calendar = $("<table>" + calendar.join("") + "</table>").addClass("curr"); 

     $("td:empty", calendar).addClass("nil"); 
     if (month === new Date().getMonth()) { 
      $('td', calendar).filter(function() { return $(this).text() === new Date().getDate().toString(); }).addClass("today"); 
     } 
     createCal.cache[year][month] = { calendar : function() { return calendar.clone() }, label : months[month] + " " + year }; 

     return createCal.cache[year][month]; 
      } 

      createCal.cache = {}; 
      return { 
       init : init, 
       switchMonth : switchMonth, 
       createCal : createCal 
      }; 
     }; 
     var cal = CALENDAR(); 
     cal.init(); 
     }); 

这一切工作完美，只是提供了背景。我的问题是我正在尝试为每周视图实现相同的功能（即默认为当前星期，具有该周的正确日期，在标题上列出月份和年份，并允许您切换几周。使用月份代码作为指南来实现每周功能的相同想法，但不幸的是它不工作。我不确定是否需要完全找到一些新算法，或者代码是否可以修改，但我。“M希望后者让我知道，如果您有任何见解 一周查看HTML看起来像这样：

<html> 
    <head> 
    </head> 
    <body> 
    <div id="weekCal"> 
    <div class="header"> 
     <span class="left button" id="prev"> &lang; </span> 
     <span class="month-year" id="label"> April 2017 </span> 
     <span class="right button" id="next"> &rang; </span> 
    </div> 
    <table id="days"> 
     <td>sun</td> 
     <td>mon</td> 
     <td>tue</td> 
     <td>wed</td> 
     <td>thu</td> 
     <td>fri</td> 
     <td>sat</td> 
    </table> 
    <div id="cal-frame"> 
     <table class="curr"> 
     <tbody> 
      <tr><td class="nil"></td><td class="nil"></td><td>1</td><td class="today">2</td><td>3</td><td>4</td><td>5</td></tr> 
     </tbody> 
     </table> 
    </div> 
    </div> 

我试图推导出周视图中的JavaScript看起来像这样：

$(document).ready(function(){ 
    var WEEKLY_CALENDAR = function() { 
      var weekWrap, weekLlabel, 
        weeks = ["Week1", "Week2", "Week3", "Week4", "Week 5", "Week 6", "Week 7", "Week 8", "Week 9", "Week 10", "Week 11", "Week 12"]; 

在最后的实现中，我假设我需要52周，但我以12开始，作为一个例子，只是为了看看它是否工作 months = [“January”，“February”，“March “，”四月“，”五月“，”六月“，”七月“，”八月“，”九月“，”十月“，”十一月“，”十二月“];

  Date.prototype.getWeek = function() { 
      var onejan = new Date(this.getFullYear(),0,1); 
      var today = new Date(this.getFullYear(),this.getMonth(),this.getDate()); 
      var dayOfYear = ((today - onejan + 86400000)/86400000); 
      return Math.ceil(dayOfYear/7) 
     }; 

处JavaScript Date.getWeek()?

  function init(newWrap) { 
      weekWrap  = $(newWrap || "#weekCal"); 
      label = wrap.find("#label"); 
      wrap.find("#prev").bind("click.calendar", function() { switchWeek(false); }); 
      wrap.find("#next").bind("click.calendar", function() { switchWeek(true); }); 
      label.bind("click", function() { switchWeek(null, new Date().getWeek(), new Date().getMonth(), new Date().getFullYear()); }); 
      label.click(); 
      } 

      function switchWeek(next, week, month, year) { 
      var curr = label.text().trim().split(" "), calendar, tempYear = parseInt(curr[1], 10); 
      if (!week) { 
       if (next) { 
        if (curr[0] === "week 52") { 
         week = 0; 
        } else { 
         week = week.indexOf(curr[0]) + 1; 
        } 
       } else { 
        if (curr[0] === "week 1") { 
         week = 11; 
        } else { 
         week = weeks.indexOf(curr[0]) - 1; 
        } 
       } 
      } 
      if (!month) { 
       if (next) { 
        if (curr[0] === "December") { 
         month = 0; 
        } else { 
         month = months.indexOf(curr[0]) + 1; 
        } 
       } else { 
        if (curr[0] === "January") { 
         month = 11; 
        } else { 
         month = months.indexOf(curr[0]) - 1; 
        } 
       } 
      } 
      if (!year) { 
       if (next && month === 0) { 
        year = tempYear + 1; 
       } else if (!next && month === 11) { 
        year = tempYear - 1; 
       } else { 
        year = tempYear; 
       } 
      } 
      calendar = createCal(year, month, week); 
       $("#cal-frame", weekWrap) 
        .find(".curr") 
         .removeClass("curr") 
         .addClass("temp") 
        .end() 
        .prepend(calendar.calendar()) 
        .find(".temp") 
         .fadeOut("slow", function() { $(this).remove(); }); 

       $('#label').text(calendar.label); 
     } 

      function createCal(year, month, week) { 
      var day = 1, i, j, haveDays = true, 
       startDay = new Date(year, month, day).getDay(), 
       daysInMonths = [31, (((year%4==0)&&(year%100!=0))||(year%400==0)) ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31], 
       calendar = []; 
       if (createCal.cache[year]) { 
       if (createCal.cache[year][week]) { 
       return createCal.cache[year][week]; 
       } 
      } 
     else { 
      createCal.cache[year] = {}; 
     } 
      i = 0; 
      while (haveDays) { 
       calendar[i] = []; 
       for (j = 0; j < 7; j++) { 
        if (i === 0) { 
         if (j === startDay) { 
          calendar[i][j] = day++; 
          startDay++; 
         } 
        } else if (day <= daysInMonths[month]) { 
         calendar[i][j] = day++; 
        } else { 
         calendar[i][j] = ""; 
         haveDays = false; 
        } 
        if (day > daysInMonths[month]) { 
         haveDays = false; 
        } 
       } 
       i++; 
      } 
      if (calendar[5]) { 
      for (i = 0; i < calendar[5].length; i++) { 
       if (calendar[5][i] !== "") { 
        calendar[4][i] = "<span>" + calendar[4][i] + "</span><span>" + calendar[5][i] + "</span>"; 
       } 
      } 
      calendar = calendar.slice(0, 5); 
     } 
     for (i = 0; i < calendar.length; i++) { 
      calendar[i] = "<tr><td>" + calendar[i].join("</td><td>") + "</td></tr>"; 
     } 
     calendar = $("<table>" + calendar.join("") + "</table>").addClass("curr"); 

     $("td:empty", calendar).addClass("nil"); 
     if (month === new Date().getMonth()) { 
      $('td', calendar).filter(function() { return $(this).text() === new Date().getDate().toString(); }).addClass("today"); 
     } 
     createCal.cache[year][week] = { calendar : function() { return calendar.clone() }, label : weeks[week] + " " + year }; 

     return createCal.cache[year][week]; 
     } 

      createCal.cache = {}; 
      return { 
       init : init, 
       switchWeek : switchWeek, 
       createCal : createCal 
      }; 
     }; 
    var cal = CALENDAR(); 
     cal.init(); 
    }); 

我是相当新的JavaScript和算法发现这个getWeek功能，所以我有点失去了对如何解决这一问题。如果您有任何见解，我很乐意听到它。

Answer 1

不知道这是否适合你...可能需要一些主要的调整，但这应该让你在正确的道路上..如果不让我知道。

function getWeek(fromDate) { 
 
    var sunday = new Date(fromDate.setDate(fromDate.getDate() - fromDate.getDay())), 
 
    result = [new Date(sunday)]; 
 
    while (sunday.setDate(sunday.getDate() + 1) && sunday.getDay() !== 0) { 
 
    result.push(new Date(sunday)); 
 
    } 
 
    return result; 
 
} 
 
// usage 
 
var today = new Date(); 
 
var dd = today.getDate(); 
 
var mm = today.getMonth() + 1; //January is 0! 
 
var yyyy = today.getFullYear(); 
 

 
if (dd < 10) { 
 
    dd = '0' + dd 
 
} 
 

 
if (mm < 10) { 
 
    mm = '0' + mm 
 
} 
 

 
today = mm + '/' + dd + '/' + yyyy; 
 
var week = getWeek(new Date(today)); 
 
var weekLayout = ""; 
 
for (i = 0; week.length > i; i++) { 
 
    var data = week[i]; 
 
    weekLayout = weekLayout + "<li>" + data + "</li>"; 
 
} 
 
$('.calendar').append("<ul>" + weekLayout + "</ul>"); 
 
var months = ""; 
 
var cal = false; 
 
function getYear() { 
 
    var mthLayout = "" 
 
    console.log(months); 
 
    for (i = 0; months.length > i; i++) { 
 
    var data = months[i]; 
 
    mthLayout = mthLayout + "<li>" + data + "</li>"; 
 
    } 
 
    if($('.calendar').length > 0){ 
 
    $('.calendar ul').remove(); $('.calendar').append("<ul>" + mthLayout + "</ul>"); 
 
    } else { 
 
    $('.calendar').append("<ul>" + mthLayout + "</ul>"); 
 
    } 
 
    
 
} 
 

 

 
function getDaysInMonth(month, year) { 
 
    var date = new Date(year, month, 1); 
 
    var days = []; 
 
    while (date.getMonth() === month) { 
 
    days.push(new Date(date)); 
 
    date.setDate(date.getDate() + 1); 
 
    } 
 
    months = days; 
 
} 
 
$('a#mth').click(function(e) { 
 
if(cal == false){ 
 
    cal = true; 
 
    getDaysInMonth(4, 2017); 
 
    console.log(months); 
 
    getYear(); 
 
    } else { 
 
    cal = false; 
 
    
 
$('.calendar ul').remove(); $('.calendar').append("<ul>" + weekLayout + "</ul>"); 
 
    } 
 
    e.preventDefault(); 
 
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> 
 
<div class="calendar"></div> 
 
<a href="#" id="mth">Month</a>