chrome/browser/ash_service_registry.cc

// Copyright 2017 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/ash_service_registry.h"

#include "ash/ash_service.h"
#include "ash/components/quick_launch/public/mojom/constants.mojom.h"
#include "ash/components/shortcut_viewer/public/mojom/shortcut_viewer.mojom.h"
#include "ash/components/tap_visualizer/public/mojom/constants.mojom.h"
#include "ash/public/cpp/window_properties.h"
#include "ash/public/interfaces/constants.mojom.h"
#include "ash/public/interfaces/window_properties.mojom.h"
#include "ash/shell.h"
#include "ash/strings/grit/ash_strings.h"
#include "base/stl_util.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/thread_task_runner_handle.h"
#include "build/build_config.h"
#include "chrome/browser/chromeos/accessibility/ax_host_service.h"
#include "chrome/browser/chromeos/prefs/pref_connector_service.h"
#include "content/public/common/service_manager_connection.h"
#include "services/ui/public/interfaces/constants.mojom.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/ui_base_features.h"

using content::ContentBrowserClient;

namespace ash_service_registry {
namespace {

struct Service {
  const char* name;
  int display_name_id;  // Resource ID for the display name.
};

// Services shared between mash and non-mash configs.
constexpr Service kCommonServices[] = {
    {"autoclick_app", IDS_ASH_AUTOCLICK_APP_NAME},
    {quick_launch::mojom::kServiceName, IDS_ASH_QUICK_LAUNCH_APP_NAME},
    {shortcut_viewer::mojom::kServiceName, IDS_ASH_SHORTCUT_VIEWER_APP_NAME},
    {tap_visualizer::mojom::kServiceName, IDS_ASH_TAP_VISUALIZER_APP_NAME},
};

// Services unique to mash. Note that the non-mash case also has an Ash service,
// it's just registered differently (see RegisterInProcessServices()).
constexpr Service kMashServices[] = {
    {ash::mojom::kServiceName, IDS_ASH_ASH_SERVICE_NAME},
    {ui::mojom::kServiceName, IDS_ASH_UI_SERVICE_NAME},
};

void RegisterOutOfProcessServicesImpl(
    const Service* services,
    size_t num_services,
    ContentBrowserClient::OutOfProcessServiceMap* services_map) {
  for (size_t i = 0; i < num_services; ++i) {
    const Service& service = services[i];
    (*services_map)[service.name] =
        ContentBrowserClient::OutOfProcessServiceInfo(base::BindRepeating(
            &l10n_util::GetStringUTF16, service.display_name_id));
  }
}

}  // namespace

void RegisterOutOfProcessServices(
    ContentBrowserClient::OutOfProcessServiceMap* services) {
  RegisterOutOfProcessServicesImpl(kCommonServices, base::size(kCommonServices),
                                   services);
  if (base::FeatureList::IsEnabled(features::kMashDeprecated) ||
      base::FeatureList::IsEnabled(features::kMash)) {
    RegisterOutOfProcessServicesImpl(kMashServices, base::size(kMashServices),
                                     services);
  }
}

void RegisterInProcessServices(
    content::ContentBrowserClient::StaticServiceMap* services,
    content::ServiceManagerConnection* connection) {
  {
    service_manager::EmbeddedServiceInfo info;
    info.factory =
        base::BindRepeating([]() -> std::unique_ptr<service_manager::Service> {
          return std::make_unique<AshPrefConnector>();
        });
    info.task_runner = base::ThreadTaskRunnerHandle::Get();
    (*services)[ash::mojom::kPrefConnectorServiceName] = info;
  }

  {
    // Register the accessibility host service.
    service_manager::EmbeddedServiceInfo info;
    info.task_runner = base::ThreadTaskRunnerHandle::Get();
    info.factory =
        base::BindRepeating([]() -> std::unique_ptr<service_manager::Service> {
          return std::make_unique<AXHostService>();
        });
    (*services)[ax::mojom::kAXHostServiceName] = info;
  }

  if (base::FeatureList::IsEnabled(features::kMashDeprecated) ||
      base::FeatureList::IsEnabled(features::kMash))
    return;

  (*services)[ash::mojom::kServiceName] =
      ash::AshService::CreateEmbeddedServiceInfo();
}

bool IsAshRelatedServiceName(const std::string& name) {
  for (const Service& service : kMashServices) {
    if (name == service.name)
      return true;
  }
  for (const Service& service : kCommonServices) {
    if (name == service.name)
      return true;
  }
  return false;
}

bool ShouldTerminateOnServiceQuit(const std::string& name) {
  // Some services going down are treated as catastrophic failures, usually
  // because both the browser and the service cache data about each other's
  // state that is not rebuilt when the service restarts.
  return name == ui::mojom::kServiceName || name == ash::mojom::kServiceName;
}

}  // namespace ash_service_registry