guoren/public/javascripts/daterange-picker.js

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2016-12-22 20:00:08 +08:00
/**
* @version: 1.0.1
* @author: Dan Grossman http://www.dangrossman.info/
* @date: 2012-08-20
* @copyright: Copyright (c) 2012 Dan Grossman. All rights reserved.
* @license: Licensed under Apache License v2.0. See http://www.apache.org/licenses/LICENSE-2.0
* @website: http://www.improvely.com/
*/
!function ($) {
var DateRangePicker = function (element, options, cb) {
var hasOptions = typeof options == 'object'
var localeObject;
//state
this.startDate = Date.today();
this.endDate = Date.today();
this.minDate = false;
this.maxDate = false;
this.changed = false;
this.ranges = {};
this.opens = 'right';
this.cb = function () { };
this.format = 'MM/dd/yyyy';
this.separator = ' - ';
this.showWeekNumbers = false;
this.buttonClasses = ['btn-success'];
this.locale = {
applyLabel: 'Apply',
fromLabel: 'From',
toLabel: 'To',
weekLabel: 'W',
customRangeLabel: 'Custom Range',
daysOfWeek: Date.CultureInfo.shortestDayNames,
monthNames: Date.CultureInfo.monthNames,
firstDay: 0
};
localeObject = this.locale;
this.leftCalendar = {
month: Date.today().set({ day: 1, month: this.startDate.getMonth(), year: this.startDate.getFullYear() }),
calendar: Array()
};
this.rightCalendar = {
month: Date.today().set({ day: 1, month: this.endDate.getMonth(), year: this.endDate.getFullYear() }),
calendar: Array()
};
// by default, the daterangepicker element is placed at the bottom of HTML body
this.parentEl = 'body';
//element that triggered the date range picker
this.element = $(element);
if (this.element.hasClass('pull-right'))
this.opens = 'left';
if (this.element.is('input')) {
this.element.on({
click: $.proxy(this.show, this),
focus: $.proxy(this.show, this)
});
} else {
this.element.on('click', $.proxy(this.show, this));
}
if (hasOptions) {
if(typeof options.locale == 'object') {
$.each(localeObject, function (property, value) {
localeObject[property] = options.locale[property] || value;
});
}
}
var DRPTemplate = '<div class="daterangepicker dropdown-menu">' +
'<div class="calendar left"></div>' +
'<div class="calendar right"></div>' +
'<div class="ranges">' +
'<div class="range_inputs">' +
"<div>" +
'<label for="daterangepicker_start">' + this.locale.fromLabel + '</label>' +
'<input class="m-wrap input-sm form-control" type="text" name="daterangepicker_start" value="" disabled="disabled" />' +
'</div>' +
"<div>" +
'<label for="daterangepicker_end">' + this.locale.toLabel + '</label>' +
'<input class="m-wrap input-sm form-control" type="text" name="daterangepicker_end" value="" disabled="disabled" />' +
'</div>' +
'<button class="btn " disabled="disabled">' + this.locale.applyLabel + '</button>' +
'</div>' +
'</div>' +
'</div>';
this.parentEl = (hasOptions && options.parentEl && $(options.parentEl)) || $(this.parentEl);
//the date range picker
this.container = $(DRPTemplate).appendTo(this.parentEl);
if (hasOptions) {
if (typeof options.format == 'string')
this.format = options.format;
if (typeof options.separator == 'string')
this.separator = options.separator;
if (typeof options.startDate == 'string')
this.startDate = Date.parse(options.startDate, this.format);
if (typeof options.endDate == 'string')
this.endDate = Date.parse(options.endDate, this.format);
if (typeof options.minDate == 'string')
this.minDate = Date.parse(options.minDate, this.format);
if (typeof options.maxDate == 'string')
this.maxDate = Date.parse(options.maxDate, this.format);
if (typeof options.startDate == 'object')
this.startDate = options.startDate;
if (typeof options.endDate == 'object')
this.endDate = options.endDate;
if (typeof options.minDate == 'object')
this.minDate = options.minDate;
if (typeof options.maxDate == 'object')
this.maxDate = options.maxDate;
if (typeof options.ranges == 'object') {
for (var range in options.ranges) {
var start = options.ranges[range][0];
var end = options.ranges[range][1];
if (typeof start == 'string')
start = Date.parse(start);
if (typeof end == 'string')
end = Date.parse(end);
// If we have a min/max date set, bound this range
// to it, but only if it would otherwise fall
// outside of the min/max.
if (this.minDate && start < this.minDate)
start = this.minDate;
if (this.maxDate && end > this.maxDate)
end = this.maxDate;
// If the end of the range is before the minimum (if min is set) OR
// the start of the range is after the max (also if set) don't display this
// range option.
if ((this.minDate && end < this.minDate) || (this.maxDate && start > this.maxDate))
{
continue;
}
this.ranges[range] = [start, end];
}
var list = '<ul>';
for (var range in this.ranges) {
list += '<li>' + range + '</li>';
}
list += '<li>' + this.locale.customRangeLabel + '</li>';
list += '</ul>';
this.container.find('.ranges').prepend(list);
}
// update day names order to firstDay
if (typeof options.locale == 'object') {
if (typeof options.locale.firstDay == 'number') {
this.locale.firstDay = options.locale.firstDay;
var iterator = options.locale.firstDay;
while (iterator > 0) {
this.locale.daysOfWeek.push(this.locale.daysOfWeek.shift());
iterator--;
}
}
}
if (typeof options.opens == 'string')
this.opens = options.opens;
if (typeof options.showWeekNumbers == 'boolean') {
this.showWeekNumbers = options.showWeekNumbers;
}
if (typeof options.buttonClasses == 'string') {
this.buttonClasses = [options.buttonClasses];
}
if (typeof options.buttonClasses == 'object') {
this.buttonClasses = options.buttonClasses;
}
}
//apply CSS classes to buttons
var c = this.container;
$.each(this.buttonClasses, function (idx, val) {
c.find('button').addClass(val);
});
if (this.opens == 'right') {
//swap calendar positions
var left = this.container.find('.calendar.left');
var right = this.container.find('.calendar.right');
left.removeClass('left').addClass('right');
right.removeClass('right').addClass('left');
}
if (typeof options == 'undefined' || typeof options.ranges == 'undefined')
this.container.find('.calendar').show();
if (typeof cb == 'function')
this.cb = cb;
this.container.addClass('opens' + this.opens);
//event listeners
this.container.on('mousedown', $.proxy(this.mousedown, this));
this.container.find('.calendar').on('click', '.prev', $.proxy(this.clickPrev, this));
this.container.find('.calendar').on('click', '.next', $.proxy(this.clickNext, this));
this.container.find('.ranges').on('click', 'button', $.proxy(this.clickApply, this));
this.container.find('.calendar').on('click', 'td.available', $.proxy(this.clickDate, this));
this.container.find('.calendar').on('mouseenter', 'td.available', $.proxy(this.enterDate, this));
this.container.find('.calendar').on('mouseleave', 'td.available', $.proxy(this.updateView, this));
this.container.find('.ranges').on('click', 'li', $.proxy(this.clickRange, this));
this.container.find('.ranges').on('mouseenter', 'li', $.proxy(this.enterRange, this));
this.container.find('.ranges').on('mouseleave', 'li', $.proxy(this.updateView, this));
this.element.on('keyup', $.proxy(this.updateFromControl, this));
this.updateView();
this.updateCalendars();
};
DateRangePicker.prototype = {
constructor: DateRangePicker,
mousedown: function (e) {
e.stopPropagation();
e.preventDefault();
},
updateView: function () {
this.leftCalendar.month.set({ month: this.startDate.getMonth(), year: this.startDate.getFullYear() });
this.rightCalendar.month.set({ month: this.endDate.getMonth(), year: this.endDate.getFullYear() });
this.container.find('input[name=daterangepicker_start]').val(this.startDate.toString(this.format));
this.container.find('input[name=daterangepicker_end]').val(this.endDate.toString(this.format));
if (this.startDate.equals(this.endDate) || this.startDate.isBefore(this.endDate)) {
this.container.find('button').removeAttr('disabled');
} else {
this.container.find('button').attr('disabled', 'disabled');
}
},
updateFromControl: function () {
if (!this.element.is('input')) return;
var dateString = this.element.val().split(this.separator);
var start = Date.parseExact(dateString[0], this.format);
var end = Date.parseExact(dateString[1], this.format);
if (start == null || end == null) return;
if (end.isBefore(start)) return;
this.startDate = start;
this.endDate = end;
this.updateView();
this.cb(this.startDate, this.endDate);
this.updateCalendars();
},
notify: function () {
this.updateView();
if (this.element.is('input')) {
this.element.val(this.startDate.toString(this.format) + this.separator + this.endDate.toString(this.format));
}
this.cb(this.startDate, this.endDate);
},
move: function () {
var parentOffset = {
top: this.parentEl.offset().top - this.parentEl.scrollTop(),
left: this.parentEl.offset().left - this.parentEl.scrollLeft()
};
if (this.opens == 'left') {
this.container.css({
top: this.element.offset().top + this.element.outerHeight(),
right: $(window).width() - this.element.offset().left - this.element.outerWidth() - parentOffset.left,
left: 'auto'
});
} else {
this.container.css({
top: this.element.offset().top + this.element.outerHeight(),
left: this.element.offset().left - parentOffset.left,
right: 'auto'
});
}
},
show: function (e) {
this.container.show();
this.move();
if (e) {
e.stopPropagation();
e.preventDefault();
}
this.changed = false;
$(document).on('mousedown', $.proxy(this.hide, this));
},
hide: function (e) {
this.container.hide();
$(document).off('mousedown', this.hide);
if (this.changed) {
this.changed = false;
this.notify();
}
},
enterRange: function (e) {
var label = e.target.innerHTML;
if (label == this.locale.customRangeLabel) {
this.updateView();
} else {
var dates = this.ranges[label];
this.container.find('input[name=daterangepicker_start]').val(dates[0].toString(this.format));
this.container.find('input[name=daterangepicker_end]').val(dates[1].toString(this.format));
}
},
clickRange: function (e) {
var label = e.target.innerHTML;
if (label == this.locale.customRangeLabel) {
this.container.find('.calendar').show();
} else {
var dates = this.ranges[label];
this.startDate = dates[0];
this.endDate = dates[1];
this.leftCalendar.month.set({ month: this.startDate.getMonth(), year: this.startDate.getFullYear() });
this.rightCalendar.month.set({ month: this.endDate.getMonth(), year: this.endDate.getFullYear() });
this.updateCalendars();
this.changed = true;
this.container.find('.calendar').hide();
this.hide();
}
},
clickPrev: function (e) {
var cal = $(e.target).parents('.calendar');
if (cal.hasClass('left')) {
this.leftCalendar.month.add({ months: -1 });
} else {
this.rightCalendar.month.add({ months: -1 });
}
this.updateCalendars();
},
clickNext: function (e) {
var cal = $(e.target).parents('.calendar');
if (cal.hasClass('left')) {
this.leftCalendar.month.add({ months: 1 });
} else {
this.rightCalendar.month.add({ months: 1 });
}
this.updateCalendars();
},
enterDate: function (e) {
var title = $(e.target).attr('title');
var row = title.substr(1, 1);
var col = title.substr(3, 1);
var cal = $(e.target).parents('.calendar');
if (cal.hasClass('left')) {
this.container.find('input[name=daterangepicker_start]').val(this.leftCalendar.calendar[row][col].toString(this.format));
} else {
this.container.find('input[name=daterangepicker_end]').val(this.rightCalendar.calendar[row][col].toString(this.format));
}
},
clickDate: function (e) {
var title = $(e.target).attr('title');
var row = title.substr(1, 1);
var col = title.substr(3, 1);
var cal = $(e.target).parents('.calendar');
if (cal.hasClass('left')) {
startDate = this.leftCalendar.calendar[row][col];
endDate = this.endDate;
} else {
startDate = this.startDate;
endDate = this.rightCalendar.calendar[row][col];
}
cal.find('td').removeClass('active');
if (startDate.equals(endDate) || startDate.isBefore(endDate)) {
$(e.target).addClass('active');
if (!startDate.equals(this.startDate) || !endDate.equals(this.endDate))
this.changed = true;
this.startDate = startDate;
this.endDate = endDate;
}
this.leftCalendar.month.set({ month: this.startDate.getMonth(), year: this.startDate.getFullYear() });
this.rightCalendar.month.set({ month: this.endDate.getMonth(), year: this.endDate.getFullYear() });
this.updateCalendars();
},
clickApply: function (e) {
this.hide();
},
updateCalendars: function () {
this.leftCalendar.calendar = this.buildCalendar(this.leftCalendar.month.getMonth(), this.leftCalendar.month.getFullYear());
this.rightCalendar.calendar = this.buildCalendar(this.rightCalendar.month.getMonth(), this.rightCalendar.month.getFullYear());
this.container.find('.calendar.left').html(this.renderCalendar(this.leftCalendar.calendar, this.startDate, this.minDate, this.endDate));
this.container.find('.calendar.right').html(this.renderCalendar(this.rightCalendar.calendar, this.endDate, this.startDate, this.maxDate));
},
buildCalendar: function (month, year) {
var firstDay = Date.today().set({ day: 1, month: month, year: year });
var lastMonth = firstDay.clone().add(-1).day().getMonth();
var lastYear = firstDay.clone().add(-1).day().getFullYear();
var daysInMonth = Date.getDaysInMonth(year, month);
var daysInLastMonth = Date.getDaysInMonth(lastYear, lastMonth);
var dayOfWeek = firstDay.getDay();
//initialize a 6 rows x 7 columns array for the calendar
var calendar = Array();
for (var i = 0; i < 6; i++) {
calendar[i] = Array();
}
//populate the calendar with date objects
var startDay = daysInLastMonth - dayOfWeek + this.locale.firstDay + 1;
if (startDay > daysInLastMonth)
startDay -= 7;
if (dayOfWeek == this.locale.firstDay)
startDay = daysInLastMonth - 6;
var curDate = Date.today().set({ day: startDay, month: lastMonth, year: lastYear });
for (var i = 0, col = 0, row = 0; i < 42; i++, col++, curDate = curDate.clone().add(1).day()) {
if (i > 0 && col % 7 == 0) {
col = 0;
row++;
}
calendar[row][col] = curDate;
}
return calendar;
},
renderCalendar: function (calendar, selected, minDate, maxDate) {
var html = '<table class="table-condensed">';
html += '<thead>';
html += '<tr>';
// add empty cell for week number
if (this.showWeekNumbers)
html += '<th></th>';
if (!minDate || minDate < calendar[1][1])
{
html += '<th class="prev available"><i class="icon-angle-left"></i></th>';
}
else
{
html += '<th></th>';
}
html += '<th colspan="5" style="width: auto">' + this.locale.monthNames[calendar[1][1].getMonth()] + calendar[1][1].toString(" yyyy") + '</th>';
if (!maxDate || maxDate > calendar[1][1])
{
html += '<th class="next available"><i class="icon-angle-right"></i></th>';
}
else
{
html += '<th></th>';
}
html += '</tr>';
html += '<tr>';
// add week number label
if (this.showWeekNumbers)
html += '<th class="week">' + this.locale.weekLabel + '</th>';
$.each(this.locale.daysOfWeek, function (index, dayOfWeek) {
html += '<th>' + dayOfWeek + '</th>';
});
html += '</tr>';
html += '</thead>';
html += '<tbody>';
for (var row = 0; row < 6; row++) {
html += '<tr>';
// add week number
if (this.showWeekNumbers)
html += '<td class="week">' + calendar[row][0].getWeek() + '</td>';
for (var col = 0; col < 7; col++) {
var cname = 'available ';
cname += (calendar[row][col].getMonth() == calendar[1][1].getMonth()) ? '' : 'off';
// Normalise the time so the comparison won't fail
selected.setHours(0,0,0,0);
if ( (minDate && calendar[row][col] < minDate) || (maxDate && calendar[row][col] > maxDate))
{
cname = 'off disabled';
}
else if (calendar[row][col].equals(selected))
{
cname += 'active';
}
var title = 'r' + row + 'c' + col;
html += '<td class="' + cname + '" title="' + title + '">' + calendar[row][col].getDate() + '</td>';
}
html += '</tr>';
}
html += '</tbody>';
html += '</table>';
return html;
}
};
$.fn.daterangepicker = function (options, cb) {
this.each(function() {
var el = $(this);
if (!el.data('daterangepicker'))
el.data('daterangepicker', new DateRangePicker(el, options, cb));
});
return this;
};
} (window.jQuery);