VEGAS JS

Namespace: signals

system. signals

The system.signals library is light-weight, strongly-typed messaging tools. Wire your application with better APIs and less boilerplate than W3C DOMEvents..

Concept:

  • A Signal is essentially a minimal emiter specific to one event, with its own array of receivers/slots (Receiver or Function).

  • A Signal gives an event a concrete membership in a class.

  • Receivers subscribe to real objects, not to string-based channels.

  • Event string constants are no longer needed.

  • Signals are inspired by signals/slots in Qt.

    Author:
    License:

    Example

    function Slot( name )
{
    this.name = name ;
}

Slot.prototype = Object.create( system.signals.Receiver.prototype );
Slot.prototype.constructor = Slot;

Slot.prototype.receive = function ( message )
{
    trace( this + " : " + message ) ;
}

Slot.prototype.toString = function ()
{
    return "[Slot name:" + this.name + "]" ;
}

var slot1 = new Slot("slot1") ;

var slot2 = function( message )
{
    trace( this + " : " + message ) ;
}

var signal = new system.signals.Signal() ;

//signal.proxy = slot1 ;

signal.connect( slot1 , 0 ) ;
signal.connect( slot2 , 2 ) ;

signal.emit( "hello world" ) ;

    Classes

    Signal
    SignalEntry