Split FileAPI code for common|common_child|renderer

webkit/fileapi/file_system_util.h

-// 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 WEBKIT_FILEAPI_FILE_SYSTEM_UTIL_H_
-#define WEBKIT_FILEAPI_FILE_SYSTEM_UTIL_H_
-
-#include <string>
-#include <vector>
-
-#include "base/files/file_path.h"
-#include "base/platform_file.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebFileSystemType.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebFileError.h"
-#include "webkit/fileapi/file_system_types.h"
-#include "webkit/quota/quota_types.h"
-#include "webkit/storage/webkit_storage_export.h"
-
-class GURL;
-
-namespace fileapi {
-
-extern const char kPersistentDir[];
-extern const char kTemporaryDir[];
-extern const char kExternalDir[];
-extern const char kIsolatedDir[];
-extern const char kTestDir[];
-
-class WEBKIT_STORAGE_EXPORT VirtualPath {
- public:
-  static const base::FilePath::CharType kRoot[];
-  static const base::FilePath::CharType kSeparator;
-
-  // Use this instead of base::FilePath::BaseName when operating on virtual
-  // paths. FilePath::BaseName will get confused by ':' on Windows when it
-  // looks like a drive letter separator; this will treat it as just another
-  // character.
-  static base::FilePath BaseName(const base::FilePath& virtual_path);
-
-  // Use this instead of base::FilePath::DirName when operating on virtual
-  // paths.
-  static base::FilePath DirName(const base::FilePath& virtual_path);
-
-  // Likewise, use this instead of base::FilePath::GetComponents when
-  // operating on virtual paths.
-  // Note that this assumes very clean input, with no leading slash, and
-  // it will not evaluate '..' components.
-  static void GetComponents(
-      const base::FilePath& path,
-      std::vector<base::FilePath::StringType>* components);
-
-  // Returns a path name ensuring that it begins with kRoot and all path
-  // separators are forward slashes /.
-  static base::FilePath::StringType GetNormalizedFilePath(
-      const base::FilePath& path);
-
-  // Returns true if the given path begins with kRoot.
-  static bool IsAbsolute(const base::FilePath::StringType& path);
-};
-
-// Returns the root URI of the filesystem that can be specified by a pair of
-// |origin_url| and |type|.  The returned URI can be used as a root path
-// of the filesystem (e.g. <returned_URI> + "/relative/path" will compose
-// a path pointing to the entry "/relative/path" in the filesystem).
-//
-// For Isolated filesystem this returns the 'common' root part, e.g.
-// returns URL without the filesystem ID.
-//
-// |type| needs to be public type as the returned URI is given to the renderer.
-WEBKIT_STORAGE_EXPORT GURL GetFileSystemRootURI(const GURL& origin_url,
-                                         FileSystemType type);
-
-// Returns the name for the filesystem that is specified by a pair of
-// |origin_url| and |type|.
-// (The name itself is neither really significant nor a formal identifier
-// but can be read as the .name field of the returned FileSystem object
-// as a user-friendly name in the javascript layer).
-//
-// |type| needs to be public type as the returned name is given to the renderer.
-//
-// Example:
-//   The name for a TEMPORARY filesystem of "http://www.example.com:80/"
-//   should look like: "http_www.example.host_80:temporary"
-WEBKIT_STORAGE_EXPORT std::string GetFileSystemName(const GURL& origin_url,
-                                             FileSystemType type);
-
-// Converts FileSystemType |type| to/from the StorageType |storage_type| that
-// is used for the unified quota system.
-// (Basically this naively maps TEMPORARY storage type to TEMPORARY filesystem
-// type, PERSISTENT storage type to PERSISTENT filesystem type and vice versa.)
-WEBKIT_STORAGE_EXPORT FileSystemType QuotaStorageTypeToFileSystemType(
-    quota::StorageType storage_type);
-WEBKIT_STORAGE_EXPORT quota::StorageType FileSystemTypeToQuotaStorageType(
-    FileSystemType type);
-
-// Returns the string representation of the given filesystem |type|.
-// Returns an empty string if the |type| is invalid.
-WEBKIT_STORAGE_EXPORT std::string GetFileSystemTypeString(FileSystemType type);
-
-// Sets type to FileSystemType enum that corresponds to the string name.
-// Returns false if the |type_string| is invalid.
-WEBKIT_STORAGE_EXPORT bool GetFileSystemPublicType(
-    std::string type_string,
-    WebKit::WebFileSystemType* type);
-
-// Encodes |file_path| to a string.
-// Following conditions should be held:
-//  - StringToFilePath(FilePathToString(path)) == path
-//  - StringToFilePath(FilePathToString(path) + "/" + "SubDirectory") ==
-//    path.AppendASCII("SubDirectory");
-//
-// TODO(tzik): Replace CreateFilePath and FilePathToString in
-// third_party/leveldatabase/env_chromium.cc with them.
-WEBKIT_STORAGE_EXPORT std::string FilePathToString(const base::FilePath& file_path);
-
-// Decode a file path from |file_path_string|.
-WEBKIT_STORAGE_EXPORT base::FilePath StringToFilePath(
-    const std::string& file_path_string);
-
-// File error conversion
-WEBKIT_STORAGE_EXPORT WebKit::WebFileError PlatformFileErrorToWebFileError(
-    base::PlatformFileError error_code);
-
-// Generate a file system name for the given arguments. Should only be used by
-// platform apps.
-WEBKIT_STORAGE_EXPORT std::string GetIsolatedFileSystemName(
-    const GURL& origin_url,
-    const std::string& filesystem_id);
-
-// Find the file system id from |filesystem_name|. Should only be used by
-// platform apps. This function will return false if the file system name is
-// not of the form {origin}:Isolated_{id}, and will also check that there is an
-// origin and id present. It will not check that the origin or id are valid.
-WEBKIT_STORAGE_EXPORT bool CrackIsolatedFileSystemName(
-    const std::string& filesystem_name,
-    std::string* filesystem_id);
-
-// Returns the root URI for an isolated filesystem for origin |origin_url|
-// and |filesystem_id|. If the |optional_root_name| is given the resulting
-// root URI will point to the subfolder within the isolated filesystem.
-WEBKIT_STORAGE_EXPORT std::string GetIsolatedFileSystemRootURIString(
-    const GURL& origin_url,
-    const std::string& filesystem_id,
-    const std::string& optional_root_name);
-
-}  // namespace fileapi
-
-#endif  // WEBKIT_FILEAPI_FILE_SYSTEM_UTIL_H_