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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "gin/wrappable.h" | 5 #include "gin/wrappable.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "gin/per_isolate_data.h" | 8 #include "gin/per_isolate_data.h" |
9 | 9 |
10 namespace gin { | 10 namespace gin { |
11 | 11 |
12 WrappableBase::WrappableBase() { | 12 WrappableBase::WrappableBase() { |
13 } | 13 } |
14 | 14 |
15 WrappableBase::~WrappableBase() { | 15 WrappableBase::~WrappableBase() { |
16 wrapper_.Reset(); | 16 wrapper_.Reset(); |
17 } | 17 } |
18 | 18 |
19 v8::Handle<v8::Object> WrappableBase::GetWrapperImpl( | 19 v8::Handle<v8::Object> WrappableBase::GetWrapperImpl( |
20 v8::Isolate* isolate, WrapperInfo* wrapper_info) { | 20 v8::Isolate* isolate, WrapperInfo* wrapper_info, TemplateBuilder builder) { |
21 if (wrapper_.IsEmpty()) | 21 if (wrapper_.IsEmpty()) |
22 CreateWrapper(isolate, wrapper_info); | 22 CreateWrapper(isolate, wrapper_info, builder); |
23 return v8::Local<v8::Object>::New(isolate, wrapper_); | 23 return v8::Local<v8::Object>::New(isolate, wrapper_); |
24 } | 24 } |
25 | 25 |
26 void WrappableBase::WeakCallback( | 26 void WrappableBase::WeakCallback( |
27 const v8::WeakCallbackData<v8::Object, WrappableBase>& data) { | 27 const v8::WeakCallbackData<v8::Object, WrappableBase>& data) { |
28 WrappableBase* wrappable = data.GetParameter(); | 28 WrappableBase* wrappable = data.GetParameter(); |
29 wrappable->wrapper_.Reset(); | 29 wrappable->wrapper_.Reset(); |
30 delete wrappable; | 30 delete wrappable; |
31 } | 31 } |
32 | 32 |
33 v8::Handle<v8::Object> WrappableBase::CreateWrapper(v8::Isolate* isolate, | 33 v8::Handle<v8::Object> WrappableBase::CreateWrapper(v8::Isolate* isolate, |
34 WrapperInfo* info) { | 34 WrapperInfo* info, |
| 35 TemplateBuilder builder) { |
35 PerIsolateData* data = PerIsolateData::From(isolate); | 36 PerIsolateData* data = PerIsolateData::From(isolate); |
36 v8::Local<v8::ObjectTemplate> templ = data->GetObjectTemplate(info); | 37 v8::Local<v8::ObjectTemplate> templ = data->GetObjectTemplate(info); |
37 CHECK(!templ.IsEmpty()); // Don't forget to register an object template. | 38 if (templ.IsEmpty()) { |
| 39 templ = builder(isolate); |
| 40 CHECK(!templ.IsEmpty()); |
| 41 data->SetObjectTemplate(info, templ); |
| 42 } |
38 CHECK_EQ(kNumberOfInternalFields, templ->InternalFieldCount()); | 43 CHECK_EQ(kNumberOfInternalFields, templ->InternalFieldCount()); |
39 v8::Handle<v8::Object> wrapper = templ->NewInstance(); | 44 v8::Handle<v8::Object> wrapper = templ->NewInstance(); |
40 wrapper->SetAlignedPointerInInternalField(kWrapperInfoIndex, info); | 45 wrapper->SetAlignedPointerInInternalField(kWrapperInfoIndex, info); |
41 wrapper->SetAlignedPointerInInternalField(kEncodedValueIndex, this); | 46 wrapper->SetAlignedPointerInInternalField(kEncodedValueIndex, this); |
42 wrapper_.Reset(isolate, wrapper); | 47 wrapper_.Reset(isolate, wrapper); |
43 wrapper_.SetWeak(this, WeakCallback); | 48 wrapper_.SetWeak(this, WeakCallback); |
44 return wrapper; | 49 return wrapper; |
45 } | 50 } |
46 | 51 |
47 namespace internal { | 52 namespace internal { |
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63 // instance of the C++ class associated with wrapper_info. | 68 // instance of the C++ class associated with wrapper_info. |
64 if (info != wrapper_info) | 69 if (info != wrapper_info) |
65 return NULL; | 70 return NULL; |
66 | 71 |
67 return obj->GetAlignedPointerFromInternalField(kEncodedValueIndex); | 72 return obj->GetAlignedPointerFromInternalField(kEncodedValueIndex); |
68 } | 73 } |
69 | 74 |
70 } // namespace internal | 75 } // namespace internal |
71 | 76 |
72 } // namespace gin | 77 } // namespace gin |
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