Use require('ipc').send to communicate between browser and renderer.

renderer/api/atom_api_renderer_ipc.cc

@@ -0,0 +1,83 @@
+// Copyright (c) 2013 GitHub, Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "renderer/api/atom_api_renderer_ipc.h"
+
+#include "base/values.h"
+#include "common/api/api_messages.h"
+#include "content/public/renderer/render_view.h"
+#include "content/public/renderer/v8_value_converter.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
+#include "vendor/node/src/node.h"
+
+using content::RenderView;
+using content::V8ValueConverter;
+using WebKit::WebFrame;
+using WebKit::WebView;
+
+namespace atom {
+
+namespace api {
+
+namespace {
+
+RenderView* GetCurrentRenderView() {
+  WebFrame* frame = WebFrame::frameForCurrentContext();
+  DCHECK(frame);
+  if (!frame)
+    return NULL;
+
+  WebView* view = frame->view();
+  if (!view)
+    return NULL;  // can happen during closing.
+
+  RenderView* render_view = RenderView::FromWebView(view);
+  DCHECK(render_view);
+  return render_view;
+}
+
+}  // namespace
+
+// static
+v8::Handle<v8::Value> RendererIPC::Send(const v8::Arguments &args) {
+  v8::HandleScope scope;
+
+  if (!args[0]->IsString())
+    return node::ThrowTypeError("Bad argument");
+
+  std::string channel(*v8::String::Utf8Value(args[0]));
+
+  RenderView* render_view = GetCurrentRenderView();
+
+  // Convert Arguments to Array, so we can use V8ValueConverter to convert it
+  // to ListValue.
+  v8::Local<v8::Array> v8_args = v8::Array::New(args.Length() - 1);
+  for (int i = 0; i < args.Length() - 1; ++i)
+    v8_args->Set(i, args[i + 1]);
+
+  scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
+  scoped_ptr<base::Value> arguments(
+      converter->FromV8Value(v8_args, v8::Context::GetCurrent()));
+
+  DCHECK(arguments && arguments->IsType(base::Value::TYPE_LIST));
+
+  render_view->Send(new AtomViewHostMsg_Message(
+      render_view->GetRoutingID(),
+      channel,
+      *static_cast<base::ListValue*>(arguments.get())));
+
+  return v8::Undefined();
+}
+
+// static
+void RendererIPC::Initialize(v8::Handle<v8::Object> target) {
+  node::SetMethod(target, "send", Send);
+}
+
+}  // namespace api
+
+}  // namespace atom
+
+NODE_MODULE(atom_renderer_ipc, atom::api::RendererIPC::Initialize)