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// 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();
}
v8::Handle<v8::Object> Wrappable::GetWrapper(v8::Isolate* isolate) {
if (wrapper_.IsEmpty())
CreateWrapper(isolate);
return v8::Local<v8::Object>::New(isolate, wrapper_);
}
void Wrappable::WeakCallback(
const v8::WeakCallbackData<v8::Object, Wrappable>& data) {
Wrappable* wrappable = data.GetParameter();
wrappable->wrapper_.Reset();
delete wrappable;
}
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_EQ(kNumberOfInternalFields, templ->InternalFieldCount());
v8::Handle<v8::Object> wrapper = templ->NewInstance();
wrapper->SetAlignedPointerInInternalField(kWrapperInfoIndex, info);
wrapper->SetAlignedPointerInInternalField(kEncodedValueIndex, this);
wrapper_.Reset(isolate, wrapper);
wrapper_.SetWeak(this, WeakCallback);
return wrapper;
}
} // namespace gin
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