| // 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/browser/chromeos/drive/file_system/remove_operation.h" |
| |
| #include "base/sequenced_task_runner.h" |
| #include "chrome/browser/chromeos/drive/drive.pb.h" |
| #include "chrome/browser/chromeos/drive/file_cache.h" |
| #include "chrome/browser/chromeos/drive/file_system/operation_observer.h" |
| #include "chrome/browser/chromeos/drive/file_system_util.h" |
| #include "chrome/browser/chromeos/drive/resource_metadata.h" |
| #include "content/public/browser/browser_thread.h" |
| |
| using content::BrowserThread; |
| |
| namespace drive { |
| namespace file_system { |
| |
| namespace { |
| |
| // Removes cache file and moves the metadata entry to the trash. |
| FileError UpdateLocalState(internal::ResourceMetadata* metadata, |
| internal::FileCache* cache, |
| const base::FilePath& path, |
| bool is_recursive, |
| std::string* local_id, |
| base::FilePath* changed_directory_path) { |
| FileError error = metadata->GetIdByPath(path, local_id); |
| if (error != FILE_ERROR_OK) |
| return error; |
| |
| ResourceEntry entry; |
| error = metadata->GetResourceEntryById(*local_id, &entry); |
| if (error != FILE_ERROR_OK) |
| return error; |
| |
| if (entry.file_info().is_directory() && !is_recursive) { |
| // Check emptiness of the directory. |
| ResourceEntryVector entries; |
| error = metadata->ReadDirectoryByPath(path, &entries); |
| if (error != FILE_ERROR_OK) |
| return error; |
| if (!entries.empty()) |
| return FILE_ERROR_NOT_EMPTY; |
| } |
| |
| *changed_directory_path = metadata->GetFilePath(*local_id).DirName(); |
| |
| // Move to the trash. |
| entry.set_parent_local_id(util::kDriveTrashDirLocalId); |
| error = metadata->RefreshEntry(entry); |
| if (error != FILE_ERROR_OK) |
| return error; |
| |
| return cache->Remove(*local_id); |
| } |
| |
| } // namespace |
| |
| RemoveOperation::RemoveOperation( |
| base::SequencedTaskRunner* blocking_task_runner, |
| OperationObserver* observer, |
| internal::ResourceMetadata* metadata, |
| internal::FileCache* cache) |
| : blocking_task_runner_(blocking_task_runner), |
| observer_(observer), |
| metadata_(metadata), |
| cache_(cache), |
| weak_ptr_factory_(this) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
| } |
| |
| RemoveOperation::~RemoveOperation() { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
| } |
| |
| void RemoveOperation::Remove(const base::FilePath& path, |
| bool is_recursive, |
| const FileOperationCallback& callback) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
| DCHECK(!callback.is_null()); |
| |
| std::string* local_id = new std::string; |
| base::FilePath* changed_directory_path = new base::FilePath; |
| base::PostTaskAndReplyWithResult( |
| blocking_task_runner_.get(), |
| FROM_HERE, |
| base::Bind(&UpdateLocalState, |
| metadata_, |
| cache_, |
| path, |
| is_recursive, |
| local_id, |
| changed_directory_path), |
| base::Bind(&RemoveOperation::RemoveAfterUpdateLocalState, |
| weak_ptr_factory_.GetWeakPtr(), |
| callback, |
| base::Owned(local_id), |
| base::Owned(changed_directory_path))); |
| } |
| |
| void RemoveOperation::RemoveAfterUpdateLocalState( |
| const FileOperationCallback& callback, |
| const std::string* local_id, |
| const base::FilePath* changed_directory_path, |
| FileError error) { |
| DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
| DCHECK(!callback.is_null()); |
| |
| if (error == FILE_ERROR_OK) { |
| observer_->OnDirectoryChangedByOperation(*changed_directory_path); |
| observer_->OnEntryUpdatedByOperation(*local_id); |
| } |
| |
| callback.Run(error); |
| } |
| |
| } // namespace file_system |
| } // namespace drive |