49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
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var Class = require('./Class');
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var clone = require('./clone');
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var each = require('./each');
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var toArr = require('./toArr');
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exports = Class(
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{
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initialize: function SingleEmitter() {
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this._listeners = [];
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},
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addListener: function(listener) {
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this._listeners.push(listener);
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},
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rmListener: function(listener) {
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var idx = this._listeners.indexOf(listener);
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if (idx > -1) {
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this._listeners.splice(idx, 1);
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}
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},
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rmAllListeners: function() {
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this._listeners = [];
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},
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emit: function() {
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var _this = this;
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var args = toArr(arguments);
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var listeners = clone(this._listeners);
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each(
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listeners,
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function(listener) {
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return listener.apply(_this, args);
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},
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this
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);
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}
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},
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{
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mixin: function(obj) {
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each(
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['addListener', 'rmListener', 'emit', 'rmAllListeners'],
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function(val) {
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obj[val] = exports.prototype[val];
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}
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);
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obj._listeners = obj._listeners || [];
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}
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}
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);
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module.exports = exports;
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