OLD | NEW |
| (Empty) |
1 // Copyright 2016 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 | |
5 (function() { | |
6 | |
7 var middleButtonMouseDownTarget = null; | |
8 | |
9 document.addEventListener('mousedown', function(e) { | |
10 if (e.button == 1) | |
11 middleButtonMouseDownTarget = e.path[0]; | |
12 }, true); | |
13 | |
14 document.addEventListener('mouseup', function(e) { | |
15 if (e.button != 1) | |
16 return; | |
17 | |
18 if (e.path.length > 0 && e.path[0] == middleButtonMouseDownTarget) | |
19 middleButtonMouseDownTarget.dispatchEvent(new MouseEvent('click', e)); | |
20 | |
21 middleButtonMouseDownTarget = null; | |
22 }, true); | |
23 | |
24 window.addEventListener('click', function(e) { | |
25 if (e.button == 1 && !e.isTrusted) | |
26 e.preventDefault(); | |
27 }); | |
28 | |
29 })(); | |
OLD | NEW |