extensions/renderer/binding_generating_native_handler.cc

   1 // Copyright 2014 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 "extensions/renderer/binding_generating_native_handler.h"
   6
   7 #include "extensions/renderer/module_system.h"
   8
   9 namespace extensions {
  10
  11 BindingGeneratingNativeHandler::BindingGeneratingNativeHandler(
  12     ModuleSystem* module_system,
  13     const std::string& api_name,
  14     const std::string& bind_to)
  15     : module_system_(module_system), api_name_(api_name), bind_to_(bind_to) {}
  16
  17 v8::Handle<v8::Object> BindingGeneratingNativeHandler::NewInstance() {
  18   v8::Isolate* isolate = module_system_->GetIsolate();
  19   v8::EscapableHandleScope scope(isolate);
  20   v8::Handle<v8::Object> binding_module =
  21       module_system_->Require("binding")->ToObject();
  22   v8::Handle<v8::Object> binding =
  23       binding_module->Get(v8::String::NewFromUtf8(isolate, "Binding"))
  24           ->ToObject();
  25   v8::Handle<v8::Function> create_binding =
  26       binding->Get(v8::String::NewFromUtf8(isolate, "create"))
  27           .As<v8::Function>();
  28   v8::Handle<v8::Value> argv[] = {
  29       v8::String::NewFromUtf8(isolate, api_name_.c_str())};
  30   v8::Handle<v8::Object> binding_instance =
  31       create_binding->Call(binding, arraysize(argv), argv)->ToObject();
  32   v8::Handle<v8::Function> generate =
  33       binding_instance->Get(v8::String::NewFromUtf8(isolate, "generate"))
  34           .As<v8::Function>();
  35   v8::Local<v8::Object> object = v8::Object::New(isolate);
  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