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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.
#include "mojo/shell/public/cpp/application_runner.h"
#include "base/at_exit.h"
#include "base/command_line.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop/message_loop.h"
#include "base/process/launch.h"
#include "mojo/shell/public/cpp/shell_client.h"
#include "mojo/shell/public/cpp/shell_connection.h"
namespace mojo {
int g_application_runner_argc;
const char* const* g_application_runner_argv;
ApplicationRunner::ApplicationRunner(ShellClient* client)
: client_(scoped_ptr<ShellClient>(client)),
message_loop_type_(base::MessageLoop::TYPE_DEFAULT),
has_run_(false) {}
ApplicationRunner::~ApplicationRunner() {}
void ApplicationRunner::InitBaseCommandLine() {
base::CommandLine::Init(g_application_runner_argc, g_application_runner_argv);
}
void ApplicationRunner::set_message_loop_type(base::MessageLoop::Type type) {
DCHECK_NE(base::MessageLoop::TYPE_CUSTOM, type);
DCHECK(!has_run_);
message_loop_type_ = type;
}
MojoResult ApplicationRunner::Run(MojoHandle shell_client_request_handle,
bool init_base) {
DCHECK(!has_run_);
has_run_ = true;
scoped_ptr<base::AtExitManager> at_exit;
if (init_base) {
InitBaseCommandLine();
at_exit.reset(new base::AtExitManager);
}
{
scoped_ptr<base::MessageLoop> loop;
loop.reset(new base::MessageLoop(message_loop_type_));
connection_.reset(new ShellConnection(
client_.get(),
MakeRequest<shell::mojom::ShellClient>(MakeScopedHandle(
MessagePipeHandle(shell_client_request_handle)))));
loop->Run();
// It's very common for the client to cache the app and terminate on errors.
// If we don't delete the client before the app we run the risk of the
// client having a stale reference to the app and trying to use it.
// Note that we destruct the message loop first because that might trigger
// connection error handlers and they might access objects created by the
// client.
loop.reset();
client_.reset();
connection_.reset();
}
return MOJO_RESULT_OK;
}
MojoResult ApplicationRunner::Run(MojoHandle shell_client_request_handle) {
bool init_base = true;
if (base::CommandLine::InitializedForCurrentProcess()) {
init_base =
!base::CommandLine::ForCurrentProcess()->HasSwitch("single-process");
}
return Run(shell_client_request_handle, init_base);
}
void ApplicationRunner::DestroyShellConnection() {
connection_.reset();
}
} // namespace mojo
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