(function($){
"use strict";
var instances=[], matchers=[], defaultOptions={
precision: 100,
elapse: false,
defer: false
};
matchers.push(/^[0-9]*$/.source);
matchers.push(/([0-9]{1,2}\/){2}[0-9]{4}([0-9]{1,2}(:[0-9]{2}){2})?/.source);
matchers.push(/[0-9]{4}([\/\-][0-9]{1,2}){2}([0-9]{1,2}(:[0-9]{2}){2})?/.source);
matchers=new RegExp(matchers.join("|"));
function parseDateString(dateString){
if(dateString instanceof Date){
return dateString;
}
if(String(dateString).match(matchers)){
if(String(dateString).match(/^[0-9]*$/)){
dateString=Number(dateString);
}
if(String(dateString).match(/\-/)){
dateString=String(dateString).replace(/\-/g, "/");
}
return new Date(dateString);
}else{
throw new Error("Couldn't cast `" + dateString + "` to a date object.");
}}
var DIRECTIVE_KEY_MAP={
Y: "years",
m: "months",
n: "daysToMonth",
d: "daysToWeek",
w: "weeks",
W: "weeksToMonth",
H: "hours",
M: "minutes",
S: "seconds",
D: "totalDays",
I: "totalHours",
N: "totalMinutes",
T: "totalSeconds"
};
function escapedRegExp(str){
var sanitize=str.toString().replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
return new RegExp(sanitize);
}
function strftime(offsetObject){
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;
}}
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();
}};
$.extend(Countdown.prototype, {
start: function(){
console.log(this);
if(this.interval!==null){
clearInterval(this.interval);
}
var self=this;
this.update();
this.interval=setInterval(function(){
self.update.call(self);
}, this.options.precision);
},
stop: function(){
clearInterval(this.interval);
this.interval=null;
this.dispatchEvent("stoped");
},
toggle: function(){
if(this.interval){
this.stop();
}else{
this.start();
}},
pause: function(){
this.stop();
},
resume: function(){
this.start();
},
remove: function(){
this.stop.call(this);
instances[this.instanceNumber]=null;
delete this.$el.data().countdownInstance;
},
setFinalDate: function(value){
this.finalDate=parseDateString(value);
},
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");
}},
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);
}});
$.fn.countdown=function(){
var argumentsArray=Array.prototype.slice.call(arguments, 0);
return this.each(function(){
var instanceNumber=$(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]);
}});
};})(jQuery);