listenToAnyOnce handler for Backbone

backbone.listenToAnyOnce.js

/*
 * listenToAnyOnce handler for Backbone.[View|Collection|Model]
 *
 * Call with space separated list of events to listenToOnce, and
 * the callback will be called only once any of those events occur.
 * 
 * Usage:
 *
 * - npm install gist:<this-gist-id>
 *
 * - package.json:
 *
 * {...
 *  "dependencies": {
 *    "listenToAnyOnce": "gist:<this-gist-id>"
 *  }
 * ...
 *
 * - source.js:
 *   var Backbone = require('Backbone');
 *   require('backbone.listenToAnyOnce')(Backbone.View);
 * 
 *   var view = new Backbone.View(); 
 *   view.listenToAnyOnce('render close', function(event) {
 *     alert('single view event: ' + event);
 *   });
 *
 * AUTHOR: Mattias Nilsson <mattias@allbinary.se>
 * LICENSE: GPL 2.0
 * CHANGELOG:
 * - 2016-04-20: Initial revision
 *
 */
var listenToAnyOnce = function(root) {
    root.prototype.listenToAnyOnce = function(target, events, callback) {
        var handler = function() {
            this.stopListening(target, events, handler);
            callback.apply(this, arguments);
        }.bind(this);
        this.listenToOnce(target, events, handler);
    };
};

module.exports = listenToAnyOnce;

package.json

{
  "name": "backbone.listenToAnyOnce",
  "version": "1.0.0",
  "main": "backbone.listenToAnyOnce.js",
  "author": "Mattias Nilsosn <mattias@allbinary.se>",
  "license": "GPL2.0",
  "repository": "gist:1cb63ca9d2c65096d08970e061908098"
}