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1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
2 <!-- | 2 <!-- |
3 Copyright (c) 2014 The Chromium Authors. All rights reserved. | 3 Copyright (c) 2014 The Chromium Authors. All rights reserved. |
4 Use of this source code is governed by a BSD-style license that can be | 4 Use of this source code is governed by a BSD-style license that can be |
5 found in the LICENSE file. | 5 found in the LICENSE file. |
6 --> | 6 --> |
7 | 7 |
8 <link rel="import" href="/tracing/base/event.html"> | 8 <link rel="import" href="/tracing/base/event.html"> |
9 <link rel="import" href="/tracing/ui/base/ui.html"> | 9 <link rel="import" href="/tracing/ui/base/ui.html"> |
10 | 10 |
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27 this.observer_ = new WebKitMutationObserver(this.didMutate_.bind(this)); | 27 this.observer_ = new WebKitMutationObserver(this.didMutate_.bind(this)); |
28 this.observer_.observe(this, { childList: true }); | 28 this.observer_.observe(this, { childList: true }); |
29 | 29 |
30 // textContent is a variable on regular HTMLElements. However, we want to | 30 // textContent is a variable on regular HTMLElements. However, we want to |
31 // hook and prevent writes to it. | 31 // hook and prevent writes to it. |
32 Object.defineProperty( | 32 Object.defineProperty( |
33 this, 'textContent', | 33 this, 'textContent', |
34 { get: undefined, set: this.onSetTextContent_}); | 34 { get: undefined, set: this.onSetTextContent_}); |
35 }, | 35 }, |
36 | 36 |
| 37 // TODO(polymer): Do we need to use Polymer.dom on these functions? |
37 appendChild: function(x) { | 38 appendChild: function(x) { |
38 HTMLUnknownElement.prototype.appendChild.call(this, x); | 39 HTMLUnknownElement.prototype.appendChild.call(this, x); |
39 this.didMutate_(this.observer_.takeRecords()); | 40 this.didMutate_(this.observer_.takeRecords()); |
40 }, | 41 }, |
41 | 42 |
42 insertBefore: function(x, y) { | 43 insertBefore: function(x, y) { |
43 HTMLUnknownElement.prototype.insertBefore.call(this, x, y); | 44 HTMLUnknownElement.prototype.insertBefore.call(this, x, y); |
44 this.didMutate_(this.observer_.takeRecords()); | 45 this.didMutate_(this.observer_.takeRecords()); |
45 }, | 46 }, |
46 | 47 |
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98 doneDecoratingForNow_: function() { | 99 doneDecoratingForNow_: function() { |
99 } | 100 } |
100 }; | 101 }; |
101 | 102 |
102 return { | 103 return { |
103 ContainerThatDecoratesItsChildren: ContainerThatDecoratesItsChildren | 104 ContainerThatDecoratesItsChildren: ContainerThatDecoratesItsChildren |
104 }; | 105 }; |
105 | 106 |
106 }); | 107 }); |
107 </script> | 108 </script> |
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