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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
1 function getStyle(elem, name) { | 5 function getStyle(elem, name) { |
2 if (document.defaultView && document.defaultView.getComputedStyle) { | 6 if (document.defaultView && document.defaultView.getComputedStyle) { |
3 name = name.toLowerCase(); | 7 name = name.toLowerCase(); |
4 | 8 |
5 try { | 9 try { |
6 var s = document.defaultView.getComputedStyle(elem, ''); | 10 var s = document.defaultView.getComputedStyle(elem, ''); |
7 return s && s.getPropertyValue(name); | 11 return s && s.getPropertyValue(name); |
8 } catch (ex) { | 12 } catch (ex) { |
9 return null; | 13 return null; |
10 } | 14 } |
11 } else { | 15 } else { |
12 return null; | 16 return null; |
13 } | 17 } |
14 } | 18 } |
15 | 19 |
16 var bElement = document.getElementById('test2'); | 20 var bElement = document.getElementById('test2'); |
17 var display = getStyle(bElement, 'display').toLowerCase(); | 21 var display = getStyle(bElement, 'display').toLowerCase(); |
18 var extensionPort = chrome.extension.connect(); | 22 var extensionPort = chrome.runtime.connect(); |
19 extensionPort.postMessage({message: display}); | 23 extensionPort.postMessage({message: display}); |
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