// MooTools: the javascript framework.
// Load this file's selection again by visiting: http://mootools.net/more/8136813401c4aa1043bc3c773f8ccf77 
// Or build this file again with packager using: packager build More/Object.Extras More/Request.Queue
/*
---
copyrights:
  - [MooTools](http://mootools.net)

licenses:
  - [MIT License](http://mootools.net/license.txt)
...
*/
MooTools.More={version:"1.3.2.1",build:"e586bcd2496e9b22acfde32e12f84d49ce09e59d"};(function(){var b=function(c){return c!=null;};var a=Object.prototype.hasOwnProperty;
Object.extend({getFromPath:function(e,f){if(typeof f=="string"){f=f.split(".");}for(var d=0,c=f.length;d<c;d++){if(a.call(e,f[d])){e=e[f[d]];}else{return null;
}}return e;},cleanValues:function(c,e){e=e||b;for(var d in c){if(!e(c[d])){delete c[d];}}return c;},erase:function(c,d){if(a.call(c,d)){delete c[d];}return c;
},run:function(d){var c=Array.slice(arguments,1);for(var e in d){if(d[e].apply){d[e].apply(d,c);}}return d;}});})();Class.Mutators.Binds=function(a){if(!this.prototype.initialize){this.implement("initialize",function(){});
}return Array.from(a).concat(this.prototype.Binds||[]);};Class.Mutators.initialize=function(a){return function(){Array.from(this.Binds).each(function(b){var c=this[b];
if(c){this[b]=c.bind(this);}},this);return a.apply(this,arguments);};};Request.Queue=new Class({Implements:[Options,Events],Binds:["attach","request","complete","cancel","success","failure","exception"],options:{stopOnFailure:true,autoAdvance:true,concurrent:1,requests:{}},initialize:function(a){var b;
if(a){b=a.requests;delete a.requests;}this.setOptions(a);this.requests={};this.queue=[];this.reqBinders={};if(b){this.addRequests(b);}},addRequest:function(a,b){this.requests[a]=b;
this.attach(a,b);return this;},addRequests:function(a){Object.each(a,function(c,b){this.addRequest(b,c);},this);return this;},getName:function(a){return Object.keyOf(this.requests,a);
},attach:function(a,b){if(b._groupSend){return this;}["request","complete","cancel","success","failure","exception"].each(function(c){if(!this.reqBinders[a]){this.reqBinders[a]={};
}this.reqBinders[a][c]=function(){this["on"+c.capitalize()].apply(this,[a,b].append(arguments));}.bind(this);b.addEvent(c,this.reqBinders[a][c]);},this);
b._groupSend=b.send;b.send=function(c){this.send(a,c);return b;}.bind(this);return this;},removeRequest:function(b){var a=typeOf(b)=="object"?this.getName(b):b;
if(!a&&typeOf(a)!="string"){return this;}b=this.requests[a];if(!b){return this;}["request","complete","cancel","success","failure","exception"].each(function(c){b.removeEvent(c,this.reqBinders[a][c]);
},this);b.send=b._groupSend;delete b._groupSend;return this;},getRunning:function(){return Object.filter(this.requests,function(a){return a.running;});
},isRunning:function(){return !!(Object.keys(this.getRunning()).length);},send:function(b,a){var c=function(){this.requests[b]._groupSend(a);this.queue.erase(c);
}.bind(this);c.name=b;if(Object.keys(this.getRunning()).length>=this.options.concurrent||(this.error&&this.options.stopOnFailure)){this.queue.push(c);}else{c();
}return this;},hasNext:function(a){return(!a)?!!this.queue.length:!!this.queue.filter(function(b){return b.name==a;}).length;},resume:function(){this.error=false;
(this.options.concurrent-Object.keys(this.getRunning()).length).times(this.runNext,this);return this;},runNext:function(a){if(!this.queue.length){return this;
}if(!a){this.queue[0]();}else{var b;this.queue.each(function(c){if(!b&&c.name==a){b=true;c();}});}return this;},runAll:function(){this.queue.each(function(a){a();
});return this;},clear:function(a){if(!a){this.queue.empty();}else{this.queue=this.queue.map(function(b){if(b.name!=a){return b;}else{return false;}}).filter(function(b){return b;
});}return this;},cancel:function(a){this.requests[a].cancel();return this;},onRequest:function(){this.fireEvent("request",arguments);},onComplete:function(){this.fireEvent("complete",arguments);
if(!this.queue.length){this.fireEvent("end");}},onCancel:function(){if(this.options.autoAdvance&&!this.error){this.runNext();}this.fireEvent("cancel",arguments);
},onSuccess:function(){if(this.options.autoAdvance&&!this.error){this.runNext();}this.fireEvent("success",arguments);},onFailure:function(){this.error=true;
if(!this.options.stopOnFailure&&this.options.autoAdvance){this.runNext();}this.fireEvent("failure",arguments);},onException:function(){this.error=true;
if(!this.options.stopOnFailure&&this.options.autoAdvance){this.runNext();}this.fireEvent("exception",arguments);}});