allianceauth/static/admin/js/calendar.js
2014-10-26 16:47:21 -07:00

139 lines
4.8 KiB
JavaScript

/*
calendar.js - Calendar functions by Adrian Holovaty
depends on core.js for utility functions like removeChildren or quickElement
*/
// CalendarNamespace -- Provides a collection of HTML calendar-related helper functions
var CalendarNamespace = {
monthsOfYear: gettext('January February March April May June July August September October November December').split(' '),
daysOfWeek: gettext('S M T W T F S').split(' '),
firstDayOfWeek: parseInt(get_format('FIRST_DAY_OF_WEEK')),
isLeapYear: function (year) {
return (((year % 4) == 0) && ((year % 100) != 0) || ((year % 400) == 0));
},
getDaysInMonth: function (month, year) {
var days;
if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) {
days = 31;
}
else if (month == 4 || month == 6 || month == 9 || month == 11) {
days = 30;
}
else if (month == 2 && CalendarNamespace.isLeapYear(year)) {
days = 29;
}
else {
days = 28;
}
return days;
},
draw: function (month, year, div_id, callback) { // month = 1-12, year = 1-9999
var today = new Date();
var todayDay = today.getDate();
var todayMonth = today.getMonth() + 1;
var todayYear = today.getFullYear();
var todayClass = '';
month = parseInt(month);
year = parseInt(year);
var calDiv = document.getElementById(div_id);
removeChildren(calDiv);
var calTable = document.createElement('table');
quickElement('caption', calTable, CalendarNamespace.monthsOfYear[month - 1] + ' ' + year);
var tableBody = quickElement('tbody', calTable);
// Draw days-of-week header
var tableRow = quickElement('tr', tableBody);
for (var i = 0; i < 7; i++) {
quickElement('th', tableRow, CalendarNamespace.daysOfWeek[(i + CalendarNamespace.firstDayOfWeek) % 7]);
}
var startingPos = new Date(year, month - 1, 1 - CalendarNamespace.firstDayOfWeek).getDay();
var days = CalendarNamespace.getDaysInMonth(month, year);
// Draw blanks before first of month
tableRow = quickElement('tr', tableBody);
for (var i = 0; i < startingPos; i++) {
var _cell = quickElement('td', tableRow, ' ');
_cell.style.backgroundColor = '#f3f3f3';
}
// Draw days of month
var currentDay = 1;
for (var i = startingPos; currentDay <= days; i++) {
if (i % 7 == 0 && currentDay != 1) {
tableRow = quickElement('tr', tableBody);
}
if ((currentDay == todayDay) && (month == todayMonth) && (year == todayYear)) {
todayClass = 'today';
} else {
todayClass = '';
}
var cell = quickElement('td', tableRow, '', 'class', todayClass);
quickElement('a', cell, currentDay, 'href', 'javascript:void(' + callback + '(' + year + ',' + month + ',' + currentDay + '));');
currentDay++;
}
// Draw blanks after end of month (optional, but makes for valid code)
while (tableRow.childNodes.length < 7) {
var _cell = quickElement('td', tableRow, ' ');
_cell.style.backgroundColor = '#f3f3f3';
}
calDiv.appendChild(calTable);
}
}
// Calendar -- A calendar instance
function Calendar(div_id, callback) {
// div_id (string) is the ID of the element in which the calendar will
// be displayed
// callback (string) is the name of a JavaScript function that will be
// called with the parameters (year, month, day) when a day in the
// calendar is clicked
this.div_id = div_id;
this.callback = callback;
this.today = new Date();
this.currentMonth = this.today.getMonth() + 1;
this.currentYear = this.today.getFullYear();
}
Calendar.prototype = {
drawCurrent: function () {
CalendarNamespace.draw(this.currentMonth, this.currentYear, this.div_id, this.callback);
},
drawDate: function (month, year) {
this.currentMonth = month;
this.currentYear = year;
this.drawCurrent();
},
drawPreviousMonth: function () {
if (this.currentMonth == 1) {
this.currentMonth = 12;
this.currentYear--;
}
else {
this.currentMonth--;
}
this.drawCurrent();
},
drawNextMonth: function () {
if (this.currentMonth == 12) {
this.currentMonth = 1;
this.currentYear++;
}
else {
this.currentMonth++;
}
this.drawCurrent();
},
drawPreviousYear: function () {
this.currentYear--;
this.drawCurrent();
},
drawNextYear: function () {
this.currentYear++;
this.drawCurrent();
}
}