This app provides monitoring and information features for the common freifunk user and the technical stuff of a freifunk community.
Code base is taken from a TUM Practical Course project and added here to see if Freifunk Altdorf can use it.
https://www.freifunk-altdorf.de
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36 lines
912 B
36 lines
912 B
'use strict'; |
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/** |
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* Copyright (c) 2013-present, Facebook, Inc. |
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* |
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* This source code is licensed under the MIT license found in the |
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* LICENSE file in the root directory of this source tree. |
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* |
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* @typechecks |
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*/ |
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/* eslint-disable fb-www/typeof-undefined */ |
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/** |
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* Same as document.activeElement but wraps in a try-catch block. In IE it is |
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* not safe to call document.activeElement if there is nothing focused. |
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* |
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* The activeElement will be null only if the document or document body is not |
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* yet defined. |
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* |
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* @param {?DOMDocument} doc Defaults to current document. |
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* @return {?DOMElement} |
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*/ |
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function getActiveElement(doc) /*?DOMElement*/{ |
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doc = doc || (typeof document !== 'undefined' ? document : undefined); |
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if (typeof doc === 'undefined') { |
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return null; |
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} |
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try { |
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return doc.activeElement || doc.body; |
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} catch (e) { |
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return doc.body; |
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} |
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} |
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module.exports = getActiveElement; |