ef5a4b5fe0
We are going to use IPC_MESSAGE_HANDLER_DELAY_REPLY to handle synchronous messages but DictionaryValue is not copyable, so we pass the JSON string instead.
126 lines
3.7 KiB
C++
126 lines
3.7 KiB
C++
// Copyright (c) 2013 GitHub, Inc. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "renderer/api/atom_api_renderer_ipc.h"
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#include "base/values.h"
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#include "common/api/api_messages.h"
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#include "content/public/renderer/render_view.h"
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#include "content/public/renderer/v8_value_converter.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
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#include "vendor/node/src/node.h"
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using content::RenderView;
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using content::V8ValueConverter;
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using WebKit::WebFrame;
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using WebKit::WebView;
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namespace atom {
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namespace api {
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namespace {
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RenderView* GetCurrentRenderView() {
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WebFrame* frame = WebFrame::frameForCurrentContext();
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DCHECK(frame);
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if (!frame)
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return NULL;
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WebView* view = frame->view();
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if (!view)
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return NULL; // can happen during closing.
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RenderView* render_view = RenderView::FromWebView(view);
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DCHECK(render_view);
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return render_view;
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}
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} // namespace
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// static
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v8::Handle<v8::Value> RendererIPC::Send(const v8::Arguments &args) {
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v8::HandleScope scope;
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if (!args[0]->IsString())
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return node::ThrowTypeError("Bad argument");
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std::string channel(*v8::String::Utf8Value(args[0]));
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RenderView* render_view = GetCurrentRenderView();
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// Convert Arguments to Array, so we can use V8ValueConverter to convert it
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// to ListValue.
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v8::Local<v8::Array> v8_args = v8::Array::New(args.Length() - 1);
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for (int i = 0; i < args.Length() - 1; ++i)
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v8_args->Set(i, args[i + 1]);
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scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
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scoped_ptr<base::Value> arguments(
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converter->FromV8Value(v8_args, v8::Context::GetCurrent()));
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DCHECK(arguments && arguments->IsType(base::Value::TYPE_LIST));
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bool success = render_view->Send(new AtomViewHostMsg_Message(
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render_view->GetRoutingID(),
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channel,
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*static_cast<base::ListValue*>(arguments.get())));
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if (!success)
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return node::ThrowError("Unable to send AtomViewHostMsg_Message");
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return v8::Undefined();
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}
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// static
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v8::Handle<v8::Value> RendererIPC::SendSync(const v8::Arguments &args) {
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v8::HandleScope scope;
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if (!args[0]->IsString())
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return node::ThrowTypeError("Bad argument");
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v8::Handle<v8::Context> context = v8::Context::GetCurrent();
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std::string channel(*v8::String::Utf8Value(args[0]));
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// Convert Arguments to Array, so we can use V8ValueConverter to convert it
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// to ListValue.
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v8::Local<v8::Array> v8_args = v8::Array::New(args.Length() - 1);
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for (int i = 0; i < args.Length() - 1; ++i)
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v8_args->Set(i, args[i + 1]);
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scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
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scoped_ptr<base::Value> arguments(converter->FromV8Value(v8_args, context));
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DCHECK(arguments && arguments->IsType(base::Value::TYPE_LIST));
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RenderView* render_view = GetCurrentRenderView();
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std::string json;
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IPC::SyncMessage* message = new AtomViewHostMsg_Message_Sync(
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render_view->GetRoutingID(),
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channel,
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*static_cast<base::ListValue*>(arguments.get()),
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&json);
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// Enable the UI thread in browser to receive messages.
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message->EnableMessagePumping();
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bool success = render_view->Send(message);
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if (!success)
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return node::ThrowError("Unable to send AtomViewHostMsg_Message_Sync");
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return scope.Close(v8::String::New(json.data(), json.size()));
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}
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// static
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void RendererIPC::Initialize(v8::Handle<v8::Object> target) {
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node::SetMethod(target, "send", Send);
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node::SetMethod(target, "sendSync", SendSync);
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}
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} // namespace api
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} // namespace atom
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NODE_MODULE(atom_renderer_ipc, atom::api::RendererIPC::Initialize)
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