[mac] App shims

apps/app_shim/app_shim_host_manager_mac.mm

+// Copyright 2013 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 "apps/app_shim/app_shim_host_manager_mac.h"
+
+#include "apps/app_shim/app_shim_host_mac.h"
+#include "base/bind.h"
+#include "base/files/file_path.h"
+#include "base/logging.h"
+#include "base/path_service.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/common/chrome_paths.h"
+#include "content/public/browser/browser_thread.h"
+#include "chrome/common/mac/app_mode_common.h"
+
+using content::BrowserThread;
+
+namespace {
+
+void CreateAppShimHost(const IPC::ChannelHandle& handle) {
+  // AppShimHost takes ownership of itself.
+  (new AppShimHost)->ServeChannel(handle);
+}
+
+}  // namespace
+
+AppShimHostManager::AppShimHostManager() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  BrowserThread::PostTask(
+      BrowserThread::FILE, FROM_HERE,
+      base::Bind(&AppShimHostManager::InitOnFileThread,
+          base::Unretained(this)));
+}
+
+AppShimHostManager::~AppShimHostManager() {
+}
+
+void AppShimHostManager::InitOnFileThread() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
+  base::FilePath user_data_dir;
+  if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir)) {
+    LOG(ERROR) << "Couldn't get user data directory while creating App Shim "
+               << "Host manager.";
+    return;
+  }
+  base::FilePath socket_path =
+      user_data_dir.Append(app_mode::kAppShimSocketName);
+  factory_.reset(new IPC::ChannelFactory(socket_path, this));
+  BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      base::Bind(&AppShimHostManager::ListenOnIOThread,
+          base::Unretained(this)));
+}
+
+void AppShimHostManager::ListenOnIOThread() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  factory_->Listen();
+}
+
+void AppShimHostManager::OnClientConnected(
+    const IPC::ChannelHandle& handle) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&CreateAppShimHost, handle));
+}
+
+void AppShimHostManager::OnListenError() {
+  // TODO(jeremya): set a timeout and attempt to reconstruct the channel.
+}