chrome/utility/profile_import_handler.cc

// Copyright (c) 2012 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/utility/profile_import_handler.h"

#include "base/bind.h"
#include "base/location.h"
#include "base/memory/ptr_util.h"
#include "base/memory/ref_counted.h"
#include "base/single_thread_task_runner.h"
#include "base/threading/thread.h"
#include "base/threading/thread_task_runner_handle.h"
#include "build/build_config.h"
#include "chrome/utility/importer/external_process_importer_bridge.h"
#include "chrome/utility/importer/importer.h"
#include "chrome/utility/importer/importer_creator.h"
#include "content/public/utility/utility_thread.h"
#include "mojo/public/cpp/bindings/strong_binding.h"

using chrome::mojom::ThreadSafeProfileImportObserverPtr;

ProfileImportHandler::ProfileImportHandler() : items_to_import_(0) {}

ProfileImportHandler::~ProfileImportHandler() {}

// static
void ProfileImportHandler::Create(
    mojo::InterfaceRequest<chrome::mojom::ProfileImport> request) {
  mojo::MakeStrongBinding(base::MakeUnique<ProfileImportHandler>(),
                          std::move(request));
}

void ProfileImportHandler::StartImport(
    const importer::SourceProfile& source_profile,
    uint16_t items,
    std::unique_ptr<base::DictionaryValue> localized_strings,
    chrome::mojom::ProfileImportObserverPtr observer) {
  content::UtilityThread::Get()->EnsureBlinkInitialized();
  importer_ = importer::CreateImporterByType(source_profile.importer_type);
  if (!importer_.get()) {
    observer->OnImportFinished(false, "Importer could not be created.");
    return;
  }

  items_to_import_ = items;

  // Create worker thread in which importer runs.
  import_thread_.reset(new base::Thread("import_thread"));
#if defined(OS_WIN)
  import_thread_->init_com_with_mta(false);
#endif
  if (!import_thread_->Start()) {
    NOTREACHED();
    ImporterCleanup();
  }
  bridge_ = new ExternalProcessImporterBridge(
      *localized_strings,
      ThreadSafeProfileImportObserverPtr::Create(std::move(observer)));
  import_thread_->task_runner()->PostTask(
      FROM_HERE, base::Bind(&Importer::StartImport, importer_,
                            source_profile, items, base::RetainedRef(bridge_)));
}

void ProfileImportHandler::CancelImport() {
  ImporterCleanup();
}

void ProfileImportHandler::ReportImportItemFinished(importer::ImportItem item) {
  items_to_import_ ^= item;  // Remove finished item from mask.
  if (items_to_import_ == 0) {
    ImporterCleanup();
  }
}

void ProfileImportHandler::ImporterCleanup() {
  importer_->Cancel();
  importer_ = NULL;
  bridge_ = NULL;
  import_thread_.reset();
  content::UtilityThread::Get()->ReleaseProcessIfNeeded();
}