Support transition between chrome and user mode console

chrome/browser/chromeos/dbus/console_service_provider.cc

+// 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 "chrome/browser/chromeos/dbus/console_service_provider.h"
+
+#include "ash/shell.h"
+#include "base/bind.h"
+#include "dbus/message.h"
+#include "third_party/cros_system_api/dbus/service_constants.h"
+#include "ui/display/chromeos/display_configurator.h"
+
+namespace chromeos {
+
+ConsoleServiceProvider::ConsoleServiceProvider() : weak_ptr_factory_(this) {
+}
+
+ConsoleServiceProvider::~ConsoleServiceProvider() {
+}
+
+void ConsoleServiceProvider::Start(
+    scoped_refptr<dbus::ExportedObject> exported_object) {
+  exported_object->ExportMethod(
+      kLibCrosServiceInterface, kTakeDisplayOwnership,
+      base::Bind(&ConsoleServiceProvider::TakeDisplayOwnership,
+                 weak_ptr_factory_.GetWeakPtr()),
+      base::Bind(&ConsoleServiceProvider::OnExported,
+                 weak_ptr_factory_.GetWeakPtr()));
+
+  exported_object->ExportMethod(
+      kLibCrosServiceInterface, kReleaseDisplayOwnership,
+      base::Bind(&ConsoleServiceProvider::ReleaseDisplayOwnership,
+                 weak_ptr_factory_.GetWeakPtr()),
+      base::Bind(&ConsoleServiceProvider::OnExported,
+                 weak_ptr_factory_.GetWeakPtr()));
+}
+
+void ConsoleServiceProvider::TakeDisplayOwnership(
+    dbus::MethodCall* method_call,
+    dbus::ExportedObject::ResponseSender response_sender) {
+  ash::Shell::GetInstance()->display_configurator()->TakeControl();
+  response_sender.Run(dbus::Response::FromMethodCall(method_call));
+}
+
+void ConsoleServiceProvider::ReleaseDisplayOwnership(
+    dbus::MethodCall* method_call,
+    dbus::ExportedObject::ResponseSender response_sender) {
+  ash::Shell::GetInstance()->display_configurator()->RelinquishControl();
+  response_sender.Run(dbus::Response::FromMethodCall(method_call));
+}
+
+void ConsoleServiceProvider::OnExported(const std::string& interface_name,
+                                        const std::string& method_name,
+                                        bool success) {
+  if (!success)
+    LOG(ERROR) << "failed to export " << interface_name << "." << method_name;
+}
+
+}  // namespace chromeos