electron/renderer/api/atom_api_renderer_ipc.cc
2013-12-05 22:12:27 +08:00

125 lines
3.6 KiB
C++

// 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 "common/v8_conversions.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;
string16 channel;
if (!FromV8Arguments(args, &channel))
return node::ThrowTypeError("Bad argument");
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));
bool success = render_view->Send(new AtomViewHostMsg_Message(
render_view->GetRoutingID(),
channel,
*static_cast<base::ListValue*>(arguments.get())));
if (!success)
return node::ThrowError("Unable to send AtomViewHostMsg_Message");
return v8::Undefined();
}
// static
v8::Handle<v8::Value> RendererIPC::SendSync(const v8::Arguments &args) {
v8::HandleScope scope;
string16 channel;
if (!FromV8Arguments(args, &channel))
return node::ThrowTypeError("Bad argument");
// 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));
RenderView* render_view = GetCurrentRenderView();
string16 json;
IPC::SyncMessage* message = new AtomViewHostMsg_Message_Sync(
render_view->GetRoutingID(),
channel,
*static_cast<base::ListValue*>(arguments.get()),
&json);
// Enable the UI thread in browser to receive messages.
message->EnableMessagePumping();
bool success = render_view->Send(message);
if (!success)
return node::ThrowError("Unable to send AtomViewHostMsg_Message_Sync");
return scope.Close(ToV8Value(json));
}
// static
void RendererIPC::Initialize(v8::Handle<v8::Object> target) {
node::SetMethod(target, "send", Send);
node::SetMethod(target, "sendSync", SendSync);
}
} // namespace api
} // namespace atom
NODE_MODULE(atom_renderer_ipc, atom::api::RendererIPC::Initialize)