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! function ($) {
"use strict";
var instances = [],
defaultOptions = {
precision: 100,
elapse: false,
defer: false
};
/*
* Countdown Timer Class Definition
*/
var Countdown = function (el, finalDate, options) {
this.el = el;
this.$el = $(el);
this.interval = null;
this.offset = {};
this.options = $.extend({}, defaultOptions);
this.instanceNumber = instances.length;
instances.push(this);
this.$el.data("countdown-instance", this.instanceNumber);
if (options) {
if (typeof options === "function") {
this.$el.on("update.countdown", options);
this.$el.on("stoped.countdown", options);
this.$el.on("finish.countdown", options);
} else {
this.options = $.extend({}, defaultOptions, options);
}
}
this.setFinalDate(finalDate);
if (this.options.defer === false) {
this.start();
}
};
/*
* Countdown Timer Methods
*/
Countdown.prototype.start = function () {
if (this.interval !== null) {
clearInterval(this.interval);
}
var self = this;
this.update();
this.interval = setInterval(function () {
self.update.call(self);
}, this.options.precision);
}
Countdown.prototype.stop = function () {
clearInterval(this.interval);
this.interval = null;
this.dispatchEvent("stoped");
}
Countdown.prototype.toggle = function () {
if (this.interval) {
this.stop();
} else {
this.start();
}
}
Countdown.prototype.pause = function () {
this.stop();
}
Countdown.prototype.resume = function () {
this.start();
}
Countdown.prototype.remove = function () {
this.stop.call(this);
instances[this.instanceNumber] = null;
delete this.$el.data().countdownInstance;
}
Countdown.prototype.setFinalDate = function (value) {
this.finalDate = parseDateString(value);
}
Countdown.prototype.update = function () {
if (this.$el.closest("html").length === 0) {
this.remove();
return;
}
var hasEventsAttached = $._data(this.el, "events") !== undefined,
now = new Date(),
newTotalSecsLeft;
newTotalSecsLeft = this.finalDate.getTime() - now.getTime();
newTotalSecsLeft = Math.ceil(newTotalSecsLeft / 1e3);
newTotalSecsLeft = !this.options.elapse && newTotalSecsLeft < 0 ? 0 : Math.abs(newTotalSecsLeft);
if (this.totalSecsLeft === newTotalSecsLeft || !hasEventsAttached) {
return;
} else {
this.totalSecsLeft = newTotalSecsLeft;
}
this.elapsed = now >= this.finalDate;
this.offset = {
seconds: this.totalSecsLeft % 60,
minutes: Math.floor(this.totalSecsLeft / 60) % 60,
hours: Math.floor(this.totalSecsLeft / 60 / 60) % 24,
days: Math.floor(this.totalSecsLeft / 60 / 60 / 24) % 7,
daysToWeek: Math.floor(this.totalSecsLeft / 60 / 60 / 24) % 7,
daysToMonth: Math.floor(this.totalSecsLeft / 60 / 60 / 24 % 30.4368),
weeks: Math.floor(this.totalSecsLeft / 60 / 60 / 24 / 7),
weeksToMonth: Math.floor(this.totalSecsLeft / 60 / 60 / 24 / 7) % 4,
months: Math.floor(this.totalSecsLeft / 60 / 60 / 24 / 30.4368),
years: Math.abs(this.finalDate.getFullYear() - now.getFullYear()),
totalDays: Math.floor(this.totalSecsLeft / 60 / 60 / 24),
totalHours: Math.floor(this.totalSecsLeft / 60 / 60),
totalMinutes: Math.floor(this.totalSecsLeft / 60),
totalSeconds: this.totalSecsLeft
};
if (!this.options.elapse && this.totalSecsLeft === 0) {
this.stop();
this.dispatchEvent("finish");
} else {
this.dispatchEvent("update");
}
}
Countdown.prototype.dispatchEvent = function (eventName) {
var event = $.Event(eventName + ".countdown");
event.finalDate = this.finalDate;
event.elapsed = this.elapsed;
event.offset = $.extend({}, this.offset);
event.strftime = strftime(this.offset);
this.$el.trigger(event);
}
/*
* Utility Functions
*/
function parseDateString(dateString) {
if (dateString instanceof Date) {
return dateString;
} else {
throw new Error("Couldn't cast `" + dateString + "` to a date object.");
}
}
function escapedRegExp(str) {
var sanitize = str.toString().replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
return new RegExp(sanitize);
}
function strftime(offsetObject) {
var DIRECTIVE_KEY_MAP = {
Y: "years",
m: "months",
n: "daysToMonth",
d: "daysToWeek",
w: "weeks",
W: "weeksToMonth",
H: "hours",
M: "minutes",
S: "seconds",
D: "totalDays",
I: "totalHours",
N: "totalMinutes",
T: "totalSeconds"
};
return function (format) {
var directives = format.match(/%(-|!)?[A-Z]{1}(:[^;]+;)?/gi);
if (directives) {
for (var i = 0, len = directives.length; i < len; ++i) {
var directive = directives[i].match(/%(-|!)?([a-zA-Z]{1})(:[^;]+;)?/),
regexp = escapedRegExp(directive[0]),
modifier = directive[1] || "",
plural = directive[3] || "",
value = null;
directive = directive[2];
if (DIRECTIVE_KEY_MAP.hasOwnProperty(directive)) {
value = DIRECTIVE_KEY_MAP[directive];
value = Number(offsetObject[value]);
}
if (value !== null) {
if (modifier === "!") {
value = pluralize(plural, value);
}
if (modifier === "") {
if (value < 10) {
value = "0" + value.toString();
}
}
format = format.replace(regexp, value.toString());
}
}
}
format = format.replace(/%%/, "%");
return format;
};
}
function pluralize(format, count) {
var plural = "s",
singular = "";
if (format) {
format = format.replace(/(:|;|\s)/gi, "").split(/\,/);
if (format.length === 1) {
plural = format[0];
} else {
singular = format[0];
plural = format[1];
}
}
if (Math.abs(count) > 1) {
return plural;
} else {
return singular;
}
}
/*
* Countdown Timer Plugin Definition
*/
$.fn.countdown = function () {
var argumentsArray = Array.prototype.slice.call(arguments, 0);
return this.each(function () {
var instanceNumber = $(this).data("countdown-instance");
if (instanceNumber !== undefined) {
var instance = instances[instanceNumber],
method = argumentsArray[0];
if (Countdown.prototype.hasOwnProperty(method)) {
instance[method].apply(instance, argumentsArray.slice(1));
} else if (String(method).match(/^[$A-Z_][0-9A-Z_$]*$/i) === null) {
instance.setFinalDate.call(instance, method);
instance.start();
} else {
$.error("Method %s does not exist on jQuery.countdown".replace(/\%s/gi, method));
}
} else {
new Countdown(this, argumentsArray[0], argumentsArray[1]);
}
});
};
}(window.jQuery);