postal.js/example/standard/js/postal.min.js

/*
 postal
 Author: Jim Cowart (http://freshbrewedcode.com/jimcowart)
 License: Dual licensed MIT (http://www.opensource.org/licenses/mit-license) & GPL (http://www.opensource.org/licenses/gpl-license)
 Version 0.8.7
 */
(function(t,n){"object"==typeof module&&module.exports?module.exports=function(t){return t=t||require("underscore"),n(t)}:"function"==typeof define&&define.amd?define(["underscore"],function(i){return n(i,t)}):t.postal=n(t._,t)})(this,function(t){var n="/",i="postal",s=function(){var n;return function(i){var s=!1;return t.isString(i)?(s=i===n,n=i):(s=t.isEqual(i,n),n=t.clone(i)),!s}},e=function(){var n=[];return function(i){var s=!t.any(n,function(n){return t.isObject(i)||t.isArray(i)?t.isEqual(i,n):i===n});return s&&n.push(i),s}},c=function(t){this.channel=t||n};c.prototype.subscribe=function(){return 1===arguments.length?new r(this.channel,arguments[0].topic,arguments[0].callback):new r(this.channel,arguments[0],arguments[1])},c.prototype.publish=function(){var t=1===arguments.length?"[object String]"===Object.prototype.toString.call(arguments[0])?{topic:arguments[0]}:arguments[0]:{topic:arguments[0],data:arguments[1]};return t.channel=this.channel,b.configuration.bus.publish(t)};var r=function(t,n,s){this.channel=t,this.topic=n,this.callback=s,this.constraints=[],this.context=null,b.configuration.bus.publish({channel:i,topic:"subscription.created",data:{event:"subscription.created",channel:t,topic:n}}),b.configuration.bus.subscribe(this)};r.prototype={unsubscribe:function(){this.inactive||(this.inactive=!0,b.configuration.bus.unsubscribe(this),b.configuration.bus.publish({channel:i,topic:"subscription.removed",data:{event:"subscription.removed",channel:this.channel,topic:this.topic}}))},defer:function(){var t=this.callback;return this.callback=function(n,i){setTimeout(function(){t(n,i)},0)},this},disposeAfter:function(n){if(t.isNaN(n)||0>=n)throw"The value provided to disposeAfter (maxCalls) must be a number greater than zero.";var i=this.callback,s=t.after(n,t.bind(function(){this.unsubscribe()},this));return this.callback=function(){i.apply(this.context,arguments),s()},this},distinctUntilChanged:function(){return this.withConstraint(new s),this},distinct:function(){return this.withConstraint(new e),this},once:function(){return this.disposeAfter(1),this},withConstraint:function(n){if(!t.isFunction(n))throw"Predicate constraint must be a function";return this.constraints.push(n),this},withConstraints:function(n){var i=this;return t.isArray(n)&&t.each(n,function(t){i.withConstraint(t)}),i},withContext:function(t){return this.context=t,this},withDebounce:function(n){if(t.isNaN(n))throw"Milliseconds must be a number";var i=this.callback;return this.callback=t.debounce(i,n),this},withDelay:function(n){if(t.isNaN(n))throw"Milliseconds must be a number";var i=this.callback;return this.callback=function(t,s){setTimeout(function(){i(t,s)},n)},this},withThrottle:function(n){if(t.isNaN(n))throw"Milliseconds must be a number";var i=this.callback;return this.callback=t.throttle(i,n),this},subscribe:function(t){return this.callback=t,this}};var o={cache:{},regex:{},compare:function(n,i){var s,e,c,r=this.cache[i]&&this.cache[i][n];return r!==undefined?r:((e=this.regex[n])||(s="^"+t.map(n.split("."),function(t){var n="";return c&&(n="#"!==c?"\\.\\b":"\\b"),n+="#"===t?"[\\s\\S]*":"*"===t?"[^.]+":t,c=t,n}).join("")+"$",e=this.regex[n]=RegExp(s)),this.cache[i]=this.cache[i]||{},this.cache[i][n]=r=e.test(i),r)},reset:function(){this.cache={},this.regex={}}},u=function(n,i){!n.inactive&&b.configuration.resolver.compare(n.topic,i.topic)&&t.all(n.constraints,function(t){return t.call(n.context,i.data,i)})&&"function"==typeof n.callback&&n.callback.call(n.context,i.data,i)},a=0,h=[],l=function(){for(;h.length;)h.shift().unsubscribe()},p={addWireTap:function(t){var n=this;return n.wireTaps.push(t),function(){var i=n.wireTaps.indexOf(t);-1!==i&&n.wireTaps.splice(i,1)}},publish:function(n){return++a,n.timeStamp=new Date,t.each(this.wireTaps,function(t){t(n.data,n)}),this.subscriptions[n.channel]&&t.each(this.subscriptions[n.channel],function(t){for(var i,s=0,e=t.length;e>s;)(i=t[s++])&&u(i,n)}),0===--a&&l(),n},reset:function(){this.subscriptions&&(t.each(this.subscriptions,function(n){t.each(n,function(t){for(;t.length;)t.pop().unsubscribe()})}),this.subscriptions={})},subscribe:function(t){var n,i=this.subscriptions[t.channel];return i||(i=this.subscriptions[t.channel]={}),n=this.subscriptions[t.channel][t.topic],n||(n=this.subscriptions[t.channel][t.topic]=[]),n.push(t),t},subscriptions:{},wireTaps:[],unsubscribe:function(t){if(a)return h.push(t),undefined;if(this.subscriptions[t.channel][t.topic])for(var n=this.subscriptions[t.channel][t.topic].length,i=0;n>i;){if(this.subscriptions[t.channel][t.topic][i]===t){this.subscriptions[t.channel][t.topic].splice(i,1);break}i+=1}}};p.subscriptions[i]={};var b={configuration:{bus:p,resolver:o,DEFAULT_CHANNEL:n,SYSTEM_CHANNEL:i},ChannelDefinition:c,SubscriptionDefinition:r,channel:function(t){return new c(t)},subscribe:function(t){return new r(t.channel||n,t.topic,t.callback)},publish:function(t){return t.channel=t.channel||n,b.configuration.bus.publish(t)},addWireTap:function(t){return this.configuration.bus.addWireTap(t)},linkChannels:function(i,s){var e=[];return i=t.isArray(i)?i:[i],s=t.isArray(s)?s:[s],t.each(i,function(i){i.topic||"#",t.each(s,function(s){var c=s.channel||n;e.push(b.subscribe({channel:i.channel||n,topic:i.topic||"#",callback:function(n,i){var e=t.clone(i);e.topic=t.isFunction(s.topic)?s.topic(i.topic):s.topic||i.topic,e.channel=c,e.data=n,b.publish(e)}}))})}),e},utils:{getSubscribersFor:function(){var t=arguments[0],n=arguments[1];return 1===arguments.length&&(t=arguments[0].channel||b.configuration.DEFAULT_CHANNEL,n=arguments[0].topic),b.configuration.bus.subscriptions[t]&&Object.prototype.hasOwnProperty.call(b.configuration.bus.subscriptions[t],n)?b.configuration.bus.subscriptions[t][n]:[]},reset:function(){b.configuration.bus.reset(),b.configuration.resolver.reset()}}};return b});