text: // Copyright 2010-2021, Google Inc.
  // All rights reserved.
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are
  // met:
  //
  //     * Redistributions of source code must retain the above copyright
  // notice, this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above
  // copyright notice, this list of conditions and the following disclaimer
  // in the documentation and/or other materials provided with the
  // distribution.
  //     * Neither the name of Google Inc. nor the names of its
  // contributors may be used to endorse or promote products derived from
  // this software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  #include <memory>
  
  #include "base/logging.h"
  #include "base/run_level.h"
  #include "base/system_util.h"
  #include "base/win_util.h"
  #include "client/client_interface.h"
  #include "renderer/renderer_client.h"
  #include "win32/base/imm_util.h"
  
  namespace mozc {
  namespace win32 {
  namespace {
  
  constexpr int kErrorLevelSuccess = 0;
  constexpr int kErrorLevelGeneralError = 1;
  
  }  // namespace
  
  int RunPrelaunchProcesses(int argc, char *argv[]) {
    if (RunLevel::IsProcessInJob()) {
      return kErrorLevelGeneralError;
    }
  
    bool is_service_process = false;
    if (!WinUtil::IsServiceProcess(&is_service_process)) {
      // Returns DENY conservatively.
      return kErrorLevelGeneralError;
    }
    if (is_service_process) {
      return kErrorLevelGeneralError;
    }
  
    if (!SystemUtil::IsWindows8OrLater() && !ImeUtil::IsDefault()) {
      // If Mozc is not default on Windows 7 or former, do nothing.
      return kErrorLevelSuccess;
    }
  
    {
      std::unique_ptr<client::ClientInterface> converter_client(
          client::ClientFactory::NewClient());
      converter_client->set_suppress_error_dialog(true);
      converter_client->EnsureConnection();
    }
  
    {
      std::unique_ptr<renderer::RendererClient> renderer_client(
          new mozc::renderer::RendererClient);
      renderer_client->set_suppress_error_dialog(true);
      renderer_client->Activate();
    }
  
    return kErrorLevelSuccess;
  }
  
  }  // namespace win32
  }  // namespace mozc
  