[fsp] [recommit #2] Add an initial AsyncFileUtil.

chrome/browser/chromeos/file_system_provider/fileapi/provider_async_file_util.cc

+// Copyright 2014 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/file_system_provider/fileapi/provider_async_file_util.h"
+
+#include "base/callback.h"
+#include "base/files/file_path.h"
+#include "base/logging.h"
+#include "base/platform_file.h"
+#include "content/public/browser/browser_thread.h"
+#include "webkit/browser/fileapi/file_system_operation_context.h"
+#include "webkit/browser/fileapi/file_system_url.h"
+#include "webkit/common/blob/shareable_file_reference.h"
+
+using content::BrowserThread;
+
+namespace chromeos {
+namespace file_system_provider {
+namespace internal {
+
+ProviderAsyncFileUtil::ProviderAsyncFileUtil() {}
+
+ProviderAsyncFileUtil::~ProviderAsyncFileUtil() {}
+
+void ProviderAsyncFileUtil::CreateOrOpen(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& url,
+    int file_flags,
+    const CreateOrOpenCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  base::PlatformFile platform_file = base::kInvalidPlatformFileValue;
+  if ((file_flags & base::PLATFORM_FILE_CREATE) ||
+      (file_flags & base::PLATFORM_FILE_OPEN_ALWAYS) ||
+      (file_flags & base::PLATFORM_FILE_CREATE_ALWAYS) ||
+      (file_flags & base::PLATFORM_FILE_OPEN_TRUNCATED)) {
+    callback.Run(base::File::FILE_ERROR_SECURITY,
+                 base::PassPlatformFile(&platform_file),
+                 base::Closure());
+    return;
+  }
+
+  NOTIMPLEMENTED();
+  callback.Run(base::File::FILE_ERROR_NOT_FOUND,
+               base::PassPlatformFile(&platform_file),
+               base::Closure());
+}
+
+void ProviderAsyncFileUtil::EnsureFileExists(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& url,
+    const EnsureFileExistsCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  callback.Run(base::File::FILE_ERROR_SECURITY, false /* created */);
+}
+
+void ProviderAsyncFileUtil::CreateDirectory(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& url,
+    bool exclusive,
+    bool recursive,
+    const StatusCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  callback.Run(base::File::FILE_ERROR_SECURITY);
+}
+
+void ProviderAsyncFileUtil::GetFileInfo(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& url,
+    const GetFileInfoCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  NOTIMPLEMENTED();
+  callback.Run(base::File::FILE_ERROR_NOT_FOUND, base::File::Info());
+}
+
+void ProviderAsyncFileUtil::ReadDirectory(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& url,
+    const ReadDirectoryCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  NOTIMPLEMENTED();
+  callback.Run(base::File::FILE_ERROR_NOT_FOUND, EntryList(), false);
+}
+
+void ProviderAsyncFileUtil::Touch(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& url,
+    const base::Time& last_access_time,
+    const base::Time& last_modified_time,
+    const StatusCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  callback.Run(base::File::FILE_ERROR_SECURITY);
+}
+
+void ProviderAsyncFileUtil::Truncate(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& url,
+    int64 length,
+    const StatusCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  callback.Run(base::File::FILE_ERROR_SECURITY);
+}
+
+void ProviderAsyncFileUtil::CopyFileLocal(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& src_url,
+    const fileapi::FileSystemURL& dest_url,
+    CopyOrMoveOption option,
+    const CopyFileProgressCallback& progress_callback,
+    const StatusCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  callback.Run(base::File::FILE_ERROR_SECURITY);
+}
+
+void ProviderAsyncFileUtil::MoveFileLocal(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& src_url,
+    const fileapi::FileSystemURL& dest_url,
+    CopyOrMoveOption option,
+    const StatusCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  callback.Run(base::File::FILE_ERROR_SECURITY);
+}
+
+void ProviderAsyncFileUtil::CopyInForeignFile(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const base::FilePath& src_file_path,
+    const fileapi::FileSystemURL& dest_url,
+    const StatusCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  callback.Run(base::File::FILE_ERROR_SECURITY);
+}
+
+void ProviderAsyncFileUtil::DeleteFile(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& url,
+    const StatusCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  callback.Run(base::File::FILE_ERROR_SECURITY);
+}
+
+void ProviderAsyncFileUtil::DeleteDirectory(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& url,
+    const StatusCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  callback.Run(base::File::FILE_ERROR_SECURITY);
+}
+
+void ProviderAsyncFileUtil::DeleteRecursively(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& url,
+    const StatusCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  callback.Run(base::File::FILE_ERROR_SECURITY);
+}
+
+void ProviderAsyncFileUtil::CreateSnapshotFile(
+    scoped_ptr<fileapi::FileSystemOperationContext> context,
+    const fileapi::FileSystemURL& url,
+    const CreateSnapshotFileCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  NOTIMPLEMENTED();
+  callback.Run(base::File::FILE_ERROR_NOT_FOUND,
+               base::File::Info(),
+               base::FilePath(),
+               scoped_refptr<webkit_blob::ShareableFileReference>());
+}
+
+}  // namespace internal
+}  // namespace file_system_provider
+}  // namespace chromeos