chrome/browser/chromeos/drive/file_system/create_directory_operation.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_CREATE_DIRECTORY_OPERATION_H_
   6 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_CREATE_DIRECTORY_OPERATION_H_
   7
   8 #include <set>
   9
  10 #include "base/basictypes.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "chrome/browser/chromeos/drive/file_errors.h"
  14
  15 namespace base {
  16 class FilePath;
  17 class SequencedTaskRunner;
  18 }  // namespace base
  19
  20 namespace drive {
  21
  22 class FileChange;
  23 class ResourceEntry;
  24
  25 namespace internal {
  26 class ResourceMetadata;
  27 }  // namespace internal
  28
  29 namespace file_system {
  30
  31 class OperationDelegate;
  32
  33 // This class encapsulates the drive Create Directory function.  It is
  34 // responsible for sending the request to the drive API, then updating the
  35 // local state and metadata to reflect the new state.
  36 class CreateDirectoryOperation {
  37  public:
  38   CreateDirectoryOperation(base::SequencedTaskRunner* blocking_task_runner,
  39                            OperationDelegate* delegate,
  40                            internal::ResourceMetadata* metadata);
  41   ~CreateDirectoryOperation();
  42
  43   // Creates a new directory at |directory_path|.
  44   // If |is_exclusive| is true, an error is raised in case a directory exists
  45   // already at the |directory_path|.
  46   // If |is_recursive| is true, the invocation creates parent directories as
  47   // needed just like mkdir -p does.
  48   // Invokes |callback| when finished with the result of the operation.
  49   // |callback| must not be null.
  50   void CreateDirectory(const base::FilePath& directory_path,
  51                        bool is_exclusive,
  52                        bool is_recursive,
  53                        const FileOperationCallback& callback);
  54
  55  private:
  56   // Part of CreateDirectory(). Called after UpdateLocalState().
  57   void CreateDirectoryAfterUpdateLocalState(
  58       const FileOperationCallback& callback,
  59       const std::set<std::string>* updated_local_ids,
  60       const FileChange* changed_directories,
  61       FileError error);
  62
  63   scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
  64   OperationDelegate* delegate_;
  65   internal::ResourceMetadata* metadata_;
  66
  67   // Note: This should remain the last member so it'll be destroyed and
  68   // invalidate the weak pointers before any other members are destroyed.
  69   base::WeakPtrFactory<CreateDirectoryOperation> weak_ptr_factory_;
  70   DISALLOW_COPY_AND_ASSIGN(CreateDirectoryOperation);
  71 };
  72
  73 }  // namespace file_system
  74 }  // namespace drive
  75
  76 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_CREATE_DIRECTORY_OPERATION_H_