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

This commit is contained in:
Cheng Zhao 2013-04-23 12:18:07 +08:00
parent c22d927b6f
commit 16244e42e0
19 changed files with 329 additions and 67 deletions

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@ -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)

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@ -0,0 +1,29 @@
// 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.
#ifndef ATOM_RENDERER_API_ATOM_API_RENDERER_IPC_H_
#define ATOM_RENDERER_API_ATOM_API_RENDERER_IPC_H_
#include "base/basictypes.h"
#include "v8/include/v8.h"
namespace atom {
namespace api {
class RendererIPC {
public:
static void Initialize(v8::Handle<v8::Object> target);
private:
static v8::Handle<v8::Value> Send(const v8::Arguments &args);
DISALLOW_IMPLICIT_CONSTRUCTORS(RendererIPC);
};
} // namespace api
} // namespace atom
#endif // ATOM_RENDERER_API_ATOM_API_RENDERER_IPC_H_

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@ -4,9 +4,10 @@
#include "renderer/api/atom_renderer_bindings.h"
#include <vector>
#include "base/logging.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"
@ -16,7 +17,6 @@
using content::RenderView;
using content::V8ValueConverter;
using WebKit::WebFrame;
using WebKit::WebView;
namespace atom {
@ -30,21 +30,6 @@ v8::Handle<v8::Object> GetProcessObject(v8::Handle<v8::Context> context) {
return process;
}
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
AtomRendererBindings::AtomRendererBindings(RenderView* render_view)
@ -66,43 +51,34 @@ void AtomRendererBindings::BindToFrame(WebFrame* frame) {
AtomBindings::BindTo(GetProcessObject(context));
}
void AtomRendererBindings::AddIPCBindings(WebFrame* frame) {
v8::HandleScope handle_scope;
void AtomRendererBindings::OnRendererMessage(const std::string& channel,
const base::ListValue& args) {
if (!render_view_->GetWebView())
return;
v8::Handle<v8::Context> context = frame->mainWorldScriptContext();
v8::HandleScope scope;
v8::Local<v8::Context> context =
render_view_->GetWebView()->mainFrame()->mainWorldScriptContext();
if (context.IsEmpty())
return;
v8::Context::Scope scope(context);
v8::Context::Scope context_scope(context);
v8::Handle<v8::Object> process = GetProcessObject(context);
node::SetMethod(process, "send", Send);
}
// static
v8::Handle<v8::Value> AtomRendererBindings::Send(const v8::Arguments &args) {
v8::HandleScope scope;
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());
for (int i = 0; i < args.Length(); ++i)
v8_args->Set(i, args[i]);
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));
std::vector<v8::Handle<v8::Value>> arguments;
arguments.reserve(1 + args.GetSize());
arguments.push_back(v8::String::New(channel.c_str(), channel.size()));
render_view->Send(new AtomViewHostMsg_Message(
render_view->GetRoutingID(),
*static_cast<base::ListValue*>(arguments.get())));
for (size_t i = 0; i < args.GetSize(); i++) {
const base::Value* value;
if (args.Get(i, &value))
arguments.push_back(converter->ToV8Value(value, context));
}
return v8::Undefined();
node::MakeCallback(process, "emit", arguments.size(), &arguments[0]);
}
} // namespace atom

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@ -2,11 +2,17 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ATOM_RENDERER_API_ATOM_RENDERER_BINDINGS_
#define ATOM_RENDERER_API_ATOM_RENDERER_BINDINGS_
#ifndef ATOM_RENDERER_API_ATOM_RENDERER_BINDINGS_H_
#define ATOM_RENDERER_API_ATOM_RENDERER_BINDINGS_H_
#include <iosfwd>
#include "common/api/atom_bindings.h"
namespace base {
class ListValue;
}
namespace content {
class RenderView;
}
@ -25,12 +31,11 @@ class AtomRendererBindings : public AtomBindings {
// Call BindTo for process object of the frame.
void BindToFrame(WebKit::WebFrame* frame);
// Add process.send and make process.on accept IPC message.
void AddIPCBindings(WebKit::WebFrame* frame);
// Dispatch messages from browser.
void OnRendererMessage(const std::string& channel,
const base::ListValue& args);
private:
static v8::Handle<v8::Value> Send(const v8::Arguments &args);
content::RenderView* render_view_;
DISALLOW_COPY_AND_ASSIGN(AtomRendererBindings);
@ -38,4 +43,4 @@ class AtomRendererBindings : public AtomBindings {
} // namespace atom
#endif // ATOM_RENDERER_API_ATOM_BINDINGS_
#endif // ATOM_RENDERER_API_ATOM_BINDINGS_H_

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@ -0,0 +1,12 @@
EventEmitter = require('events').EventEmitter
send = process.atom_binding('ipc').send
class Ipc extends EventEmitter
constructor: ->
process.on 'ATOM_INTERNAL_MESSAGE', (args...) =>
@emit('message', args...)
send: (args...) ->
send('ATOM_INTERNAL_MESSAGE', args...)
module.exports = new Ipc

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@ -1,3 +0,0 @@
RemoteObject = process.atom_binding('remote_object').RemoteObject
module.exports = RemoteObject