Gecko [ unitednationsplay.com ]

Name	Size	Permission	Date
benchmark	[ DIR ]	drwxr-xr-x	2021-02-04 21:24
test	[ DIR ]	drwxr-xr-x	2021-02-04 21:24
.lint	92 B	-rw-r--r--	2015-06-25 13:27
.npmignore	36 B	-rw-r--r--	2015-06-25 13:27
.testignore	11 B	-rw-r--r--	2015-06-25 13:27
.travis.yml	318 B	-rw-r--r--	2017-03-15 15:01
CHANGES	2.03 KB	-rw-r--r--	2017-03-15 15:02
LICENSE	1.05 KB	-rw-r--r--	2015-06-25 13:27
README.md	3.26 KB	-rw-r--r--	2017-01-10 11:39
all-off.js	457 B	-rw-r--r--	2015-06-25 13:27
emit-error.js	395 B	-rw-r--r--	2015-09-28 10:29
has-listeners.js	433 B	-rw-r--r--	2015-06-25 13:27
index.js	2.93 KB	-rw-r--r--	2016-06-02 13:29
package.json	1.78 KB	-rw-r--r--	2021-02-04 21:24
pipe.js	1.15 KB	-rw-r--r--	2015-06-25 13:27
unify.js	1.35 KB	-rw-r--r--	2015-10-17 13:44

Rename

'use strict';

var d        = require('d')
  , callable = require('es5-ext/object/valid-callable')

, apply = Function.prototype.apply, call = Function.prototype.call
  , create = Object.create, defineProperty = Object.defineProperty
  , defineProperties = Object.defineProperties
  , hasOwnProperty = Object.prototype.hasOwnProperty
  , descriptor = { configurable: true, enumerable: false, writable: true }

, on, once, off, emit, methods, descriptors, base;

on = function (type, listener) {
	var data;

callable(listener);

if (!hasOwnProperty.call(this, '__ee__')) {
		data = descriptor.value = create(null);
		defineProperty(this, '__ee__', descriptor);
		descriptor.value = null;
	} else {
		data = this.__ee__;
	}
	if (!data[type]) data[type] = listener;
	else if (typeof data[type] === 'object') data[type].push(listener);
	else data[type] = [data[type], listener];

return this;
};

once = function (type, listener) {
	var once, self;

callable(listener);
	self = this;
	on.call(this, type, once = function () {
		off.call(self, type, once);
		apply.call(listener, this, arguments);
	});

once.__eeOnceListener__ = listener;
	return this;
};

off = function (type, listener) {
	var data, listeners, candidate, i;

callable(listener);

if (!hasOwnProperty.call(this, '__ee__')) return this;
	data = this.__ee__;
	if (!data[type]) return this;
	listeners = data[type];

if (typeof listeners === 'object') {
		for (i = 0; (candidate = listeners[i]); ++i) {
			if ((candidate === listener) ||
					(candidate.__eeOnceListener__ === listener)) {
				if (listeners.length === 2) data[type] = listeners[i ? 0 : 1];
				else listeners.splice(i, 1);
			}
		}
	} else {
		if ((listeners === listener) ||
				(listeners.__eeOnceListener__ === listener)) {
			delete data[type];
		}
	}

return this;
};

emit = function (type) {
	var i, l, listener, listeners, args;

if (!hasOwnProperty.call(this, '__ee__')) return;
	listeners = this.__ee__[type];
	if (!listeners) return;

if (typeof listeners === 'object') {
		l = arguments.length;
		args = new Array(l - 1);
		for (i = 1; i < l; ++i) args[i - 1] = arguments[i];

listeners = listeners.slice();
		for (i = 0; (listener = listeners[i]); ++i) {
			apply.call(listener, this, args);
		}
	} else {
		switch (arguments.length) {
		case 1:
			call.call(listeners, this);
			break;
		case 2:
			call.call(listeners, this, arguments[1]);
			break;
		case 3:
			call.call(listeners, this, arguments[1], arguments[2]);
			break;
		default:
			l = arguments.length;
			args = new Array(l - 1);
			for (i = 1; i < l; ++i) {
				args[i - 1] = arguments[i];
			}
			apply.call(listeners, this, args);
		}
	}
};

methods = {
	on: on,
	once: once,
	off: off,
	emit: emit
};

descriptors = {
	on: d(on),
	once: d(once),
	off: d(off),
	emit: d(emit)
};

base = defineProperties({}, descriptors);

module.exports = exports = function (o) {
	return (o == null) ? create(base) : defineProperties(Object(o), descriptors);
};
exports.methods = methods;