The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/addon-sdk/source/lib/sdk/event/dom.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,26 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +"use strict";
     1.9 +
    1.10 +module.metadata = {
    1.11 +  "stability": "unstable"
    1.12 +};
    1.13 +
    1.14 +let { emit } = require("./core");
    1.15 +
    1.16 +// Simple utility function takes event target, event type and optional
    1.17 +// `options.capture` and returns node style event stream that emits "data"
    1.18 +// events every time event of that type occurs on the given `target`.
    1.19 +function open(target, type, options) {
    1.20 +  let output = {};
    1.21 +  let capture = options && options.capture ? true : false;
    1.22 +
    1.23 +  target.addEventListener(type, function(event) {
    1.24 +    emit(output, "data", event);
    1.25 +  }, capture);
    1.26 +
    1.27 +  return output;
    1.28 +}
    1.29 +exports.open = open;