| // 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. |
| |
| #ifndef COMPONENTS_DRIVE_FILE_SYSTEM_SEARCH_OPERATION_H_ |
| #define COMPONENTS_DRIVE_FILE_SYSTEM_SEARCH_OPERATION_H_ |
| |
| #include "base/basictypes.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/threading/thread_checker.h" |
| #include "components/drive/file_errors.h" |
| #include "components/drive/file_system_interface.h" |
| #include "google_apis/drive/drive_api_error_codes.h" |
| |
| namespace base { |
| class SequencedTaskRunner; |
| } // namespace base |
| |
| namespace google_apis { |
| class FileList; |
| } // namespace google_apis |
| |
| namespace drive { |
| |
| class JobScheduler; |
| |
| namespace internal { |
| class LoaderController; |
| class ResourceMetadata; |
| } // namespace internal |
| |
| namespace file_system { |
| |
| // This class encapsulates the drive Search function. It is responsible for |
| // sending the request to the drive API. |
| class SearchOperation { |
| public: |
| SearchOperation(base::SequencedTaskRunner* blocking_task_runner, |
| JobScheduler* scheduler, |
| internal::ResourceMetadata* metadata, |
| internal::LoaderController* loader_controller); |
| ~SearchOperation(); |
| |
| // Performs server side content search operation for |search_query|. If |
| // |next_link| is set, this is the search result url that will be fetched. |
| // Upon completion, |callback| will be called with the result. This is |
| // implementation of FileSystemInterface::Search() method. |
| // |
| // |callback| must not be null. |
| void Search(const std::string& search_query, |
| const GURL& next_link, |
| const SearchCallback& callback); |
| |
| private: |
| // Part of Search(), called after the FileList is fetched from the server. |
| void SearchAfterGetFileList( |
| const SearchCallback& callback, |
| google_apis::DriveApiErrorCode gdata_error, |
| scoped_ptr<google_apis::FileList> file_list); |
| |
| // Part of Search(), called after |result| is filled on the blocking pool. |
| void SearchAfterResolveSearchResult( |
| const SearchCallback& callback, |
| const GURL& next_link, |
| scoped_ptr<std::vector<SearchResultInfo> > result, |
| FileError error); |
| |
| scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_; |
| JobScheduler* scheduler_; |
| internal::ResourceMetadata* metadata_; |
| internal::LoaderController* loader_controller_; |
| |
| base::ThreadChecker thread_checker_; |
| |
| // Note: This should remain the last member so it'll be destroyed and |
| // invalidate the weak pointers before any other members are destroyed. |
| base::WeakPtrFactory<SearchOperation> weak_ptr_factory_; |
| DISALLOW_COPY_AND_ASSIGN(SearchOperation); |
| }; |
| |
| } // namespace file_system |
| } // namespace drive |
| |
| #endif // COMPONENTS_DRIVE_FILE_SYSTEM_SEARCH_OPERATION_H_ |