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index.backup.js
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index.backup.js
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if (!Date.now) {
Date.now = function now() {
return new Date().getTime();
};
}
/*
git remote add origin https://github.com/hollowdoor/horologe.git
git push -u origin master
*/
var Emitter = require('more-events').Emitter;
//http://www.sitepoint.com/creating-accurate-timers-in-javascript/
var Horologe = (function(){
function Timer(interval, options){
var timeoutId = null,
self = this,
running = false,
paused = false,
pausePassed = false,
stopOn = null,
count = 0,
showDiff = typeof options.diff === 'boolean' ? options.diff : false;
var startTime = Date.now(),
emitter = new Emitter(this);
Object.defineProperties(this, {
interval: { get: function(){ return interval; } },
paused: { get: function(){ return paused; } },
running: { get: function(){ return running; } }
});
this.on = function(){
emitter.on.apply(emitter, arguments);
return self;
};
this.one = function(){
emitter.one.apply(emitter, arguments);
return self;
};
this.off = function(){
emitter.off.apply(emitter, arguments);
return self;
};
this.dispose = function(){
emitter.dispose();
for(var n in this){
this[n] = null;
}
};
function emit(){
emitter.emit.apply(emitter, arguments);
return self;
}
this.emit = emit;
function stop(){
count = 0;
stopOn = null;
paused = false;
interrupt();
emit('stop');
return self;
}
function pause(pauseTime){
paused = true;
emit('pause');
pausePassed = (typeof pauseTime === 'boolean') ? pauseTime : true;
pauseStable();
}
function pauseStable(){
if(!paused){
return;
}
setTimeout(pauseStable, 1);
}
function interrupt(){
if(!isNaN(timeoutId))
clearTimeout(timeoutId);
timeoutId = null;
running = false;
}
function start(times){
stopOn = isNaN(times) ? stopOn : times;
if(paused){
//startTime = startTime;// - interval * 2;
paused = false;
return;
}
if(running){
stop();
}
function next(){
if(!running) return;
if(!paused && stopOn && ++count === stopOn + 2){
if(stopOn !== null){
emitter.emit('complete');
}
self.stop();
return;
}
var time = Date.now();
var diff = (time - startTime) % interval;
time = !showDiff ? time - diff : time;
timeoutId = setTimeout(next, interval - diff);
var passed;
if(paused){
if(pausePassed){
startTime = startTime + interval;
}
return;
}/*else{
passed = time - startTime;
}*/
emit('tick', time, time - startTime);
}
running = true;
if(!paused){
startTime = Date.now();
}
if(options.sync){
if(!paused){
startTime = startTime - (startTime % 1000) + 1000;
}/*else{
startTime = startTime + (startTime - (startTime % 1000) + 1000);
}*/
paused = false;
ready(startTime, next, startTime - Date.now());
return self;
}
paused = false;
ready(startTime, next, 0);
return self;
}
function ready(startTime, next, mil){
paused = false;
emit('start', startTime);
timeoutId = setTimeout(next, mil);
}
function onTick(listener){
return self.on('tick', listener);
}
function offTick(listener){
return self.off('tick', listener);
}
this.stop = stop;
this.pause = pause;
this.start = start;
this.onTick = onTick;
this.offTick = offTick;
}
function TimerFactory(interval, options){
return new Timer(interval, options);
}
var expose = {
create: TimerFactory,
constructor: Timer
};
if(typeof exports === 'object'){
module.exports = expose;
}else{
return expose;
}
}());