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// Copyright 2014 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.
#ifndef CONTENT_BROWSER_MOJO_MOJO_APPLICATION_HOST_H_
#define CONTENT_BROWSER_MOJO_MOJO_APPLICATION_HOST_H_
#include "base/process/process_handle.h"
#include "mojo/common/channel_init.h"
#include "mojo/embedder/scoped_platform_handle.h"
#include "mojo/public/interfaces/service_provider/service_provider.mojom.h"
namespace IPC {
class Sender;
}
namespace content {
// MojoApplicationHost represents the code needed on the browser side to setup
// a child process as a Mojo application via Chrome IPC. The child process
// should use MojoApplication to handle messages generated by an instance of
// MojoApplicationHost. MojoApplicationHost makes the mojo::ShellClient
// interface available so that child-provided services can be invoked.
class MojoApplicationHost {
public:
MojoApplicationHost();
virtual ~MojoApplicationHost();
// Two-phase initialization:
// 1- Init makes the shell_client() available synchronously.
// 2- Activate establishes the actual connection to the peer process.
bool Init();
bool Activate(IPC::Sender* sender, base::ProcessHandle process_handle);
bool did_activate() const { return did_activate_; }
mojo::ServiceProvider* service_provider() {
DCHECK(child_service_provider_.get());
return child_service_provider_->client();
}
private:
class ServiceProviderImpl
: public mojo::InterfaceImpl<mojo::ServiceProvider> {
public:
virtual void OnConnectionError() OVERRIDE {
// TODO(darin): How should we handle this error?
}
// mojo::ServiceProvider methods:
virtual void ConnectToService(
const mojo::String& url,
mojo::ScopedMessagePipeHandle handle) OVERRIDE;
};
mojo::common::ChannelInit channel_init_;
mojo::embedder::ScopedPlatformHandle client_handle_;
scoped_ptr<ServiceProviderImpl> child_service_provider_;
bool did_activate_;
DISALLOW_COPY_AND_ASSIGN(MojoApplicationHost);
};
} // namespace content
#endif // CONTENT_BROWSER_MOJO_MOJO_APPLICATION_HOST_H_
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