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// 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.
#ifndef COMPONENTS_DRIVE_FILE_CHANGE_H_
#define COMPONENTS_DRIVE_FILE_CHANGE_H_
#include <deque>
#include <map>
#include <string>
#include "base/basictypes.h"
#include "base/files/file_path.h"
namespace drive {
class ResourceEntry;
class FileChange {
public:
enum FileType {
FILE_TYPE_NO_INFO,
FILE_TYPE_FILE,
FILE_TYPE_DIRECTORY,
};
enum ChangeType {
CHANGE_TYPE_ADD_OR_UPDATE,
CHANGE_TYPE_DELETE,
};
class Change {
public:
Change(ChangeType change, FileType file_type);
bool IsAddOrUpdate() const { return change_ == CHANGE_TYPE_ADD_OR_UPDATE; }
bool IsDelete() const { return change_ == CHANGE_TYPE_DELETE; }
bool IsFile() const { return file_type_ == FILE_TYPE_FILE; }
bool IsDirectory() const { return file_type_ == FILE_TYPE_DIRECTORY; }
bool IsTypeUnknown() const { return !IsFile() && !IsDirectory(); }
ChangeType change() const { return change_; }
FileType file_type() const { return file_type_; }
std::string DebugString() const;
bool operator==(const Change& that) const {
return change() == that.change() && file_type() == that.file_type();
}
private:
ChangeType change_;
FileType file_type_;
};
class ChangeList {
public:
typedef std::deque<Change> List;
ChangeList();
~ChangeList();
// Updates the list with the |new_change|.
void Update(const Change& new_change);
size_t size() const { return list_.size(); }
bool empty() const { return list_.empty(); }
void clear() { list_.clear(); }
const List& list() const { return list_; }
const Change& front() const { return list_.front(); }
const Change& back() const { return list_.back(); }
ChangeList PopAndGetNewList() const;
std::string DebugString() const;
private:
List list_;
};
public:
typedef std::map<base::FilePath, FileChange::ChangeList> Map;
FileChange();
~FileChange();
void Update(const base::FilePath file_path,
const FileChange::Change& new_change);
void Update(const base::FilePath file_path,
const FileChange::ChangeList& list);
void Update(const base::FilePath file_path,
FileType type,
FileChange::ChangeType change);
void Update(const base::FilePath file_path,
const ResourceEntry& entry,
FileChange::ChangeType change);
void Apply(const FileChange& new_changed_files);
const Map& map() const { return map_; }
size_t size() const { return map_.size(); }
bool empty() const { return map_.empty(); }
void ClearForTest() { map_.clear(); }
size_t CountDirectory(const base::FilePath& directory_path) const;
size_t count(const base::FilePath& file_path) const {
return map_.count(file_path);
}
std::string DebugString() const;
private:
Map map_;
};
} // namespace drive
#endif // COMPONENTS_DRIVE_FILE_CHANGE_H_
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