Index: gin/wrappable.cc |
diff --git a/gin/wrappable.cc b/gin/wrappable.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..980349a4ed475047e4fc6c0570256a20aa9ebb86 |
--- /dev/null |
+++ b/gin/wrappable.cc |
@@ -0,0 +1,63 @@ |
+// Copyright 2013 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "gin/wrappable.h" |
+ |
+#include "base/logging.h" |
+#include "gin/per_isolate_data.h" |
+ |
+namespace gin { |
+ |
+Wrappable::Wrappable() { |
+} |
+ |
+Wrappable::~Wrappable() { |
+ wrapper_.Reset(); |
+} |
+ |
+void Wrappable::WeakCallback( |
+ const v8::WeakCallbackData<v8::Object, Wrappable>& data) { |
+ Wrappable* wrappable = data.GetParameter(); |
+ wrappable->wrapper_.Reset(); |
+ wrappable->Release(); // Balanced in Wrappable::ConfigureWrapper. |
+} |
+ |
+v8::Handle<v8::Object> Wrappable::CreateWrapper(v8::Isolate* isolate) { |
+ WrapperInfo* info = GetWrapperInfo(); |
+ PerIsolateData* data = PerIsolateData::From(isolate); |
+ v8::Local<v8::ObjectTemplate> templ = data->GetObjectTemplate(info); |
+ CHECK(!templ.IsEmpty()); // Don't forget to register an object template. |
+ CHECK(templ->InternalFieldCount() == kNumberOfInternalFields); |
+ v8::Handle<v8::Object> wrapper = templ->NewInstance(); |
+ wrapper->SetAlignedPointerInInternalField(kWrapperInfoIndex, info); |
+ wrapper->SetAlignedPointerInInternalField(kEncodedValueIndex, this); |
+ wrapper_.Reset(isolate, wrapper); |
+ AddRef(); // Balanced in Wrappable::WeakCallback. |
+ wrapper_.SetWeak(this, WeakCallback); |
+ return wrapper; |
+} |
+ |
+v8::Handle<v8::Value> Converter<Wrappable*>::ToV8(v8::Isolate* isolate, |
+ Wrappable* val) { |
+ if (val->wrapper_.IsEmpty()) |
+ return val->CreateWrapper(isolate); |
+ return v8::Local<v8::Object>::New(isolate, val->wrapper_); |
+} |
+ |
+bool Converter<Wrappable*>::FromV8(v8::Handle<v8::Value> val, |
+ Wrappable** out) { |
+ if (!val->IsObject()) |
+ return false; |
+ v8::Handle<v8::Object> obj = v8::Handle<v8::Object>::Cast(val); |
+ WrapperInfo* info = WrapperInfo::From(obj); |
+ if (!info) |
+ return false; |
+ void* pointer = obj->GetAlignedPointerFromInternalField(kEncodedValueIndex); |
+ Wrappable* wrappable = static_cast<Wrappable*>(pointer); |
+ CHECK(wrappable->GetWrapperInfo() == info); // Security check for cast above. |
+ *out = wrappable; |
+ return true; |
+} |
+ |
+} // namespace gin |