1// Copyright (c) 2012 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#include "chrome/renderer/extensions/binding_generating_native_handler.h"
6
7#include "chrome/renderer/extensions/module_system.h"
8
9namespace extensions {
10
11BindingGeneratingNativeHandler::BindingGeneratingNativeHandler(
12    ModuleSystem* module_system,
13    const std::string& api_name,
14    const std::string& bind_to)
15    : module_system_(module_system),
16      api_name_(api_name),
17      bind_to_(bind_to) {
18}
19
20v8::Handle<v8::Object> BindingGeneratingNativeHandler::NewInstance() {
21  v8::Isolate* isolate = module_system_->GetIsolate();
22  v8::EscapableHandleScope scope(isolate);
23  v8::Handle<v8::Object> binding_module =
24      module_system_->Require("binding")->ToObject();
25  v8::Handle<v8::Object> binding = binding_module
26      ->Get(v8::String::NewFromUtf8(isolate, "Binding"))->ToObject();
27  v8::Handle<v8::Function> create_binding = binding
28      ->Get(v8::String::NewFromUtf8(isolate, "create")).As<v8::Function>();
29  v8::Handle<v8::Value> argv[] = {v8::String::NewFromUtf8(isolate,
30                                                          api_name_.c_str())};
31  v8::Handle<v8::Object> binding_instance =
32      create_binding->Call(binding, arraysize(argv), argv)->ToObject();
33  v8::Handle<v8::Function> generate = binding_instance
34      ->Get(v8::String::NewFromUtf8(isolate, "generate")).As<v8::Function>();
35  v8::Local<v8::Object> object = v8::Object::New();
36  v8::Handle<v8::Value> compiled_schema =
37      generate->Call(binding_instance, 0, NULL);
38  if (!compiled_schema.IsEmpty()) {
39    object->Set(v8::String::NewFromUtf8(isolate, bind_to_.c_str()),
40                compiled_schema);
41  }
42  return scope.Escape(object);
43}
44
45} // namespace extensions
46