Lazy load chrome.* APIs

chrome/renderer/extensions/binding_generating_native_handler.cc

+// 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::HandleScope scope;
+  v8::Handle<v8::Object> binding = v8::Handle<v8::Object>::Cast(
+      v8::Handle<v8::Object>::Cast(module_system_->Require(
+          "binding"))->Get(v8::String::New("Binding")));
+  v8::Handle<v8::Function> create = v8::Handle<v8::Function>::Cast(
+      binding->Get(v8::String::New("create")));
+  v8::Handle<v8::Value> argv[] = { v8::String::New(api_name_.c_str()) };
+  v8::Handle<v8::Object> binding_instance = v8::Handle<v8::Object>::Cast(
+      create->Call(binding, 1, argv));
+  v8::Handle<v8::Function> generate = v8::Handle<v8::Function>::Cast(
+      binding_instance->Get(v8::String::New("generate")));
+  v8::Handle<v8::Value> compiled_schema =
+      generate->Call(binding_instance, 0, NULL);
+  v8::Handle<v8::Object> object = v8::Object::New();
+  object->Set(v8::String::New(bind_to_.c_str()), compiled_schema);
+  return scope.Close(object);
+}
+
+} // extensions