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class instance interface abstract-class extends implements private protected public static const constructor super read-only friendly-method event |
EventObserver pattern is default in ZNOW. It is packaged as event. To add an event to a class, "EVENT" declaration has to be added. After that, other objects can start observing the object by using "on" and stop observing by using "off". To trigger the update, you can simply call "$on[EventName]". var Clock=Class({
time:EVENT, // register an event
init:function(){
var _this=this;
setInterval(this(function(){
//notify all observers with parameters
_this.$onTime('5 sec pass');
}), 5000);
}
});
var Observer=Class({
init:function(clock){
// attach an observer by passing a function
clock.on('time', function(message){
alert(message); //will alert '5 sec pass'
});
}
});
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