root/chrome/renderer/extensions/binding_generating_native_handler.cc

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DEFINITIONS

This source file includes following definitions.
  1. bind_to_
  2. NewInstance

// Copyright (c) 2012 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 "chrome/renderer/extensions/binding_generating_native_handler.h"

#include "chrome/renderer/extensions/module_system.h"

namespace extensions {

BindingGeneratingNativeHandler::BindingGeneratingNativeHandler(
    ModuleSystem* module_system,
    const std::string& api_name,
    const std::string& bind_to)
    : module_system_(module_system),
      api_name_(api_name),
      bind_to_(bind_to) {
}

v8::Handle<v8::Object> BindingGeneratingNativeHandler::NewInstance() {
  v8::Isolate* isolate = module_system_->GetIsolate();
  v8::EscapableHandleScope scope(isolate);
  v8::Handle<v8::Object> binding_module =
      module_system_->Require("binding")->ToObject();
  v8::Handle<v8::Object> binding = binding_module
      ->Get(v8::String::NewFromUtf8(isolate, "Binding"))->ToObject();
  v8::Handle<v8::Function> create_binding = binding
      ->Get(v8::String::NewFromUtf8(isolate, "create")).As<v8::Function>();
  v8::Handle<v8::Value> argv[] = {v8::String::NewFromUtf8(isolate,
                                                          api_name_.c_str())};
  v8::Handle<v8::Object> binding_instance =
      create_binding->Call(binding, arraysize(argv), argv)->ToObject();
  v8::Handle<v8::Function> generate = binding_instance
      ->Get(v8::String::NewFromUtf8(isolate, "generate")).As<v8::Function>();
  v8::Local<v8::Object> object = v8::Object::New(isolate);
  v8::Handle<v8::Value> compiled_schema =
      generate->Call(binding_instance, 0, NULL);
  if (!compiled_schema.IsEmpty()) {
    object->Set(v8::String::NewFromUtf8(isolate, bind_to_.c_str()),
                compiled_schema);
  }
  return scope.Escape(object);
}

} // namespace extensions

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