/
events__observable.js
73 lines (66 loc) · 1.66 KB
/
events__observable.js
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/**
* @module events__observable
*/
modules.define(
'events__observable',
['inherit'],
function(provide, inherit) {
/**
* @class Observable
*/
var Observable = inherit(/** @lends Observable.prototype */{
/**
* @constructor
* @param {Object} emitter
*/
__constructor : function(emitter) {
this._emitter = emitter;
},
/**
* Adds an event handler
* @param {String} e Event type
* @param {Object} [data] Additional data that the handler gets as e.data
* @param {Function} fn Handler
* @param {Object} [fnCtx] Context
* @returns {Observable} this
*/
on : function(e, data, fn, fnCtx) {
this._emitter.on.apply(this._emitter, arguments);
return this;
},
/**
* Adds an event handler
* @param {String} e Event type
* @param {Object} [data] Additional data that the handler gets as e.data
* @param {Function} fn Handler
* @param {Object} [fnCtx] Context
* @returns {Observable} this
*/
once : function(e, data, fn, fnCtx) {
this._emitter.once.apply(this._emitter, arguments);
return this;
},
/**
* Removes event handler
* @param {String} [e] Event type
* @param {Function} [fn] Handler
* @param {Object} [fnCtx] Context
* @returns {Observable} this
*/
un : function(e, fn, fnCtx) {
this._emitter.un.apply(this._emitter, arguments);
return this;
}
});
provide(
/**
* Creates new observable
* @exports
* @param {events:Emitter} emitter
* @returns {Observable}
*/
function(emitter) {
return new Observable(emitter);
}
);
});