git.r.bdr.sh - rbdr/dotfiles/blob - atom/packages/ex-mode/node_modules/space-pen/node_modules/grim/node_modules/emissary/lib/subscription.js

   1 (function() {
   2   var Emitter, Subscription,
   3     __hasProp = {}.hasOwnProperty,
   4     __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
   5
   6   Emitter = require('./emitter');
   7
   8   module.exports = Subscription = (function(_super) {
   9     __extends(Subscription, _super);
  10
  11     Subscription.prototype.cancelled = false;
  12
  13     function Subscription(emitter, eventNames, handler) {
  14       this.emitter = emitter;
  15       this.eventNames = eventNames;
  16       this.handler = handler;
  17     }
  18
  19     Subscription.prototype.off = function() {
  20       return this.dispose();
  21     };
  22
  23     Subscription.prototype.dispose = function() {
  24       var unsubscribe, _ref;
  25       if (this.cancelled) {
  26         return;
  27       }
  28       unsubscribe = (_ref = this.emitter.off) != null ? _ref : this.emitter.removeListener;
  29       unsubscribe.call(this.emitter, this.eventNames, this.handler);
  30       this.emitter = null;
  31       this.handler = null;
  32       this.cancelled = true;
  33       return this.emit('cancelled');
  34     };
  35
  36     return Subscription;
  37
  38   })(Emitter);
  39
  40 }).call(this);