The Tor Browser / file comparison
comparison: addon-sdk/source/lib/sdk/event/dom.js
addon-sdk/source/lib/sdk/event/dom.js
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- 6474c204b198
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 "use strict"; | |
| 6 | |
| 7 module.metadata = { | |
| 8 "stability": "unstable" | |
| 9 }; | |
| 10 | |
| 11 let { emit } = require("./core"); | |
| 12 | |
| 13 // Simple utility function takes event target, event type and optional | |
| 14 // `options.capture` and returns node style event stream that emits "data" | |
| 15 // events every time event of that type occurs on the given `target`. | |
| 16 function open(target, type, options) { | |
| 17 let output = {}; | |
| 18 let capture = options && options.capture ? true : false; | |
| 19 | |
| 20 target.addEventListener(type, function(event) { | |
| 21 emit(output, "data", event); | |
| 22 }, capture); | |
| 23 | |
| 24 return output; | |
| 25 } | |
| 26 exports.open = open; |
