class ActiveSupport.CallbackQueue
Description
Allows for the execution of callbacks in the order they are registered.
var queue = new ActiveSupport.CallbackQueue(function(){
console.log('Callback queue empty.');
});
new ActiveSupport.Request(url,{
onComplete: queue.push(function(){
console.log('Ajax Request finished.');
})
});
var callback_two = queue.push(function(){
console.log('"callback_two" called.');
});
callback_two();
var callback_three = queue.push(function(){
console.log('"callback_three" called.');
});
callback_three();
Ajax callback finishes after callback_two and callback_three, but
output to the console would still be:
//Ajax Request finished.
//"callback_two" called.
//"callback_three" called.
//Callback queue empty.
Note that ActiveSupport.CallbackQueue will only function if the first callback added will be called asynchronously (as a result of an Ajax request or setTimeout call).
