vendor/assets/javascripts/combodate/combodate.js
/**
* Combodate - 1.0.4
* Dropdown date and time picker.
* Converts text input into dropdowns to pick day, month, year, hour, minute and second.
* Uses momentjs as datetime library http://momentjs.com.
* For i18n include corresponding file from https://github.com/timrwood/moment/tree/master/lang
*
* Confusion at noon and midnight - see http://en.wikipedia.org/wiki/12-hour_clock#Confusion_at_noon_and_midnight
* In combodate:
* 12:00 pm --> 12:00 (24-h format, midday)
* 12:00 am --> 00:00 (24-h format, midnight, start of day)
*
* Differs from momentjs parse rules:
* 00:00 pm, 12:00 pm --> 12:00 (24-h format, day not change)
* 00:00 am, 12:00 am --> 00:00 (24-h format, day not change)
*
*
* Author: Vitaliy Potapov
* Project page: http://github.com/vitalets/combodate
* Copyright (c) 2012 Vitaliy Potapov. Released under MIT License.
**/
(function ($) {
var Combodate = function (element, options) {
this.$element = $(element);
if(!this.$element.is('input')) {
$.error('Combodate should be applied to INPUT element');
return;
}
this.options = $.extend({}, $.fn.combodate.defaults, options, this.$element.data());
this.init();
};
Combodate.prototype = {
constructor: Combodate,
init: function () {
this.map = {
//key regexp moment.method
day: ['D', 'date'],
month: ['M', 'month'],
year: ['Y', 'year'],
hour: ['[Hh]', 'hours'],
minute: ['m', 'minutes'],
second: ['s', 'seconds'],
ampm: ['[Aa]', '']
};
this.$widget = $('<span class="combodate"></span>').html(this.getTemplate());
this.initCombos();
//update original input on change
this.$widget.on('change', 'select', $.proxy(function(){
this.$element.val(this.getValue());
}, this));
this.$widget.find('select').css('width', 'auto');
//hide original input and insert widget
this.$element.hide().after(this.$widget);
//set initial value
this.setValue(this.$element.val() || this.options.value);
},
/*
Replace tokens in template with <select> elements
*/
getTemplate: function() {
var tpl = this.options.template;
//first pass
$.each(this.map, function(k, v) {
v = v[0];
var r = new RegExp(v+'+'),
token = v.length > 1 ? v.substring(1, 2) : v;
tpl = tpl.replace(r, '{'+token+'}');
});
//replace spaces with
tpl = tpl.replace(/ /g, ' ');
//second pass
$.each(this.map, function(k, v) {
v = v[0];
var token = v.length > 1 ? v.substring(1, 2) : v;
tpl = tpl.replace('{'+token+'}', '<select class="'+k+'"></select>');
});
return tpl;
},
/*
Initialize combos that presents in template
*/
initCombos: function() {
var that = this;
$.each(this.map, function(k, v) {
var $c = that.$widget.find('.'+k), f, items;
if($c.length) {
that['$'+k] = $c; //set properties like this.$day, this.$month etc.
f = 'fill' + k.charAt(0).toUpperCase() + k.slice(1); //define method name to fill items, e.g `fillDays`
items = that[f]();
that['$'+k].html(that.renderItems(items));
}
});
},
/*
Initialize items of combos. Handles `firstItem` option
*/
initItems: function(key) {
var values = [],
relTime;
if(this.options.firstItem === 'name') {
//need both to support moment ver < 2 and >= 2
relTime = moment.relativeTime || moment.langData()._relativeTime;
var header = typeof relTime[key] === 'function' ? relTime[key](1, true, key, false) : relTime[key];
//take last entry (see momentjs lang files structure)
header = header.split(' ').reverse()[0];
values.push(['', header]);
} else if(this.options.firstItem === 'empty') {
values.push(['', '']);
}
return values;
},
/*
render items to string of <option> tags
*/
renderItems: function(items) {
var str = [];
for(var i=0; i<items.length; i++) {
str.push('<option value="'+items[i][0]+'">'+items[i][1]+'</option>');
}
return str.join("\n");
},
/*
fill day
*/
fillDay: function() {
var items = this.initItems('d'), name, i,
twoDigit = this.options.template.indexOf('DD') !== -1;
for(i=1; i<=31; i++) {
name = twoDigit ? this.leadZero(i) : i;
items.push([i, name]);
}
return items;
},
/*
fill month
*/
fillMonth: function() {
var items = this.initItems('M'), name, i,
longNames = this.options.template.indexOf('MMMM') !== -1,
shortNames = this.options.template.indexOf('MMM') !== -1,
twoDigit = this.options.template.indexOf('MM') !== -1;
for(i=0; i<=11; i++) {
if(longNames) {
//see https://github.com/timrwood/momentjs.com/pull/36
name = moment().date(1).month(i).format('MMMM');
} else if(shortNames) {
name = moment().date(1).month(i).format('MMM');
} else if(twoDigit) {
name = this.leadZero(i+1);
} else {
name = i+1;
}
items.push([i, name]);
}
return items;
},
/*
fill year
*/
fillYear: function() {
var items = [], name, i,
longNames = this.options.template.indexOf('YYYY') !== -1;
for(i=this.options.maxYear; i>=this.options.minYear; i--) {
name = longNames ? i : (i+'').substring(2);
items[this.options.yearDescending ? 'push' : 'unshift']([i, name]);
}
items = this.initItems('y').concat(items);
return items;
},
/*
fill hour
*/
fillHour: function() {
var items = this.initItems('h'), name, i,
h12 = this.options.template.indexOf('h') !== -1,
h24 = this.options.template.indexOf('H') !== -1,
twoDigit = this.options.template.toLowerCase().indexOf('hh') !== -1,
min = h12 ? 1 : 0,
max = h12 ? 12 : 23;
for(i=min; i<=max; i++) {
name = twoDigit ? this.leadZero(i) : i;
items.push([i, name]);
}
return items;
},
/*
fill minute
*/
fillMinute: function() {
var items = this.initItems('m'), name, i,
twoDigit = this.options.template.indexOf('mm') !== -1;
for(i=0; i<=59; i+= this.options.minuteStep) {
name = twoDigit ? this.leadZero(i) : i;
items.push([i, name]);
}
return items;
},
/*
fill second
*/
fillSecond: function() {
var items = this.initItems('s'), name, i,
twoDigit = this.options.template.indexOf('ss') !== -1;
for(i=0; i<=59; i+= this.options.secondStep) {
name = twoDigit ? this.leadZero(i) : i;
items.push([i, name]);
}
return items;
},
/*
fill ampm
*/
fillAmpm: function() {
var ampmL = this.options.template.indexOf('a') !== -1,
ampmU = this.options.template.indexOf('A') !== -1,
items = [
['am', ampmL ? 'am' : 'AM'],
['pm', ampmL ? 'pm' : 'PM']
];
return items;
},
/*
Returns current date value from combos.
If format not specified - `options.format` used.
If format = `null` - Moment object returned.
*/
getValue: function(format) {
var dt, values = {},
that = this,
notSelected = false;
//getting selected values
$.each(this.map, function(k, v) {
if(k === 'ampm') {
return;
}
var def = k === 'day' ? 1 : 0;
values[k] = that['$'+k] ? parseInt(that['$'+k].val(), 10) : def;
if(isNaN(values[k])) {
notSelected = true;
return false;
}
});
//if at least one visible combo not selected - return empty string
if(notSelected) {
return '';
}
//convert hours 12h --> 24h
if(this.$ampm) {
//12:00 pm --> 12:00 (24-h format, midday), 12:00 am --> 00:00 (24-h format, midnight, start of day)
if(values.hour === 12) {
values.hour = this.$ampm.val() === 'am' ? 0 : 12;
} else {
values.hour = this.$ampm.val() === 'am' ? values.hour : values.hour+12;
}
}
dt = moment([values.year, values.month, values.day, values.hour, values.minute, values.second]);
//highlight invalid date
this.highlight(dt);
format = format === undefined ? this.options.format : format;
if(format === null) {
return dt.isValid() ? dt : null;
} else {
return dt.isValid() ? dt.format(format) : '';
}
},
setValue: function(value) {
if(!value) {
return;
}
var dt = typeof value === 'string' ? moment(value, this.options.format) : moment(value),
that = this,
values = {};
//function to find nearest value in select options
function getNearest($select, value) {
var delta = {};
$select.children('option').each(function(i, opt){
var optValue = $(opt).attr('value'),
distance;
if(optValue === '') return;
distance = Math.abs(optValue - value);
if(typeof delta.distance === 'undefined' || distance < delta.distance) {
delta = {value: optValue, distance: distance};
}
});
return delta.value;
}
if(dt.isValid()) {
//read values from date object
$.each(this.map, function(k, v) {
if(k === 'ampm') {
return;
}
values[k] = dt[v[1]]();
});
if(this.$ampm) {
//12:00 pm --> 12:00 (24-h format, midday), 12:00 am --> 00:00 (24-h format, midnight, start of day)
if(values.hour >= 12) {
values.ampm = 'pm';
if(values.hour > 12) {
values.hour -= 12;
}
} else {
values.ampm = 'am';
if(values.hour === 0) {
values.hour = 12;
}
}
}
$.each(values, function(k, v) {
//call val() for each existing combo, e.g. this.$hour.val()
if(that['$'+k]) {
if(k === 'minute' && that.options.minuteStep > 1 && that.options.roundTime) {
v = getNearest(that['$'+k], v);
}
if(k === 'second' && that.options.secondStep > 1 && that.options.roundTime) {
v = getNearest(that['$'+k], v);
}
that['$'+k].val(v);
}
});
this.$element.val(dt.format(this.options.format));
}
},
/*
highlight combos if date is invalid
*/
highlight: function(dt) {
if(!dt.isValid()) {
if(this.options.errorClass) {
this.$widget.addClass(this.options.errorClass);
} else {
//store original border color
if(!this.borderColor) {
this.borderColor = this.$widget.find('select').css('border-color');
}
this.$widget.find('select').css('border-color', 'red');
}
} else {
if(this.options.errorClass) {
this.$widget.removeClass(this.options.errorClass);
} else {
this.$widget.find('select').css('border-color', this.borderColor);
}
}
},
leadZero: function(v) {
return v <= 9 ? '0' + v : v;
},
destroy: function() {
this.$widget.remove();
this.$element.removeData('combodate').show();
}
//todo: clear method
};
$.fn.combodate = function ( option ) {
var d, args = Array.apply(null, arguments);
args.shift();
//getValue returns date as string / object (not jQuery object)
if(option === 'getValue' && this.length && (d = this.eq(0).data('combodate'))) {
return d.getValue.apply(d, args);
}
return this.each(function () {
var $this = $(this),
data = $this.data('combodate'),
options = typeof option == 'object' && option;
if (!data) {
$this.data('combodate', (data = new Combodate(this, options)));
}
if (typeof option == 'string' && typeof data[option] == 'function') {
data[option].apply(data, args);
}
});
};
$.fn.combodate.defaults = {
//in this format value stored in original input
format: 'DD-MM-YYYY HH:mm',
//in this format items in dropdowns are displayed
template: 'D / MMM / YYYY H : mm',
//initial value, can be `new Date()`
value: null,
minYear: 1970,
maxYear: 2015,
yearDescending: true,
minuteStep: 5,
secondStep: 1,
firstItem: 'empty', //'name', 'empty', 'none'
errorClass: null,
roundTime: true //whether to round minutes and seconds if step > 1
};
}(window.jQuery));