[英]Building a multi view calendar from scratch; weekly view algorithm
我正在從頭開始構建多視圖日歷。 我有一個實現工作,可以將日期設置為正確的日期,並允許您在月份之間進行切換。 我的實現的html如下所示:
<div id="cal">
<div class="header">
<span class="left button" id="prev"> ⟨ </span>
<span class="month-year" id="label"> June 2017 </span>
<span class="right button" id="next"> ⟩ </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>
和它附帶的javascript是這樣的:
$(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();
});
所有這些都可以完美地工作,並且僅提供上下文。 我的問題是我想為每周視圖實現相同的功能(即默認為當前星期,具有該周的正確日期,在標題上列出月份和年份,並允許您在星期之間切換。以月代碼為指導,對每周功能實現相同的想法,但不幸的是,它不起作用,我不確定是否需要找到某種新算法,或者是否可以修改代碼,但是我不確定我希望后者。如果您有任何見解,請告訴我。每周視圖html如下所示:
<html>
<head>
</head>
<body>
<div id="weekCal">
<div class="header">
<span class="left button" id="prev"> ⟨ </span>
<span class="month-year" id="label"> April 2017 </span>
<span class="right button" id="next"> ⟩ </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>
我嘗試為周視圖導出的Javascript如下所示:
$(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"];
在最終的實現中,我假設我需要52周,但我以12周為例進行說明,只是看它是否工作了幾個月= [“ 1月”,“ 2月”,“ 3月”,“ 4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)
};
在JavaScript Date.getWeek()處找到此getWeek函數?
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();
});
我對javascript和算法還很陌生,所以我對如何解決這個問題有些迷茫。 如果您有任何見解,我很想聽聽。
不知道這是否對您有用...可能需要進行一些重大調整,但這應該可以使您走上正確的道路。
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>
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