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// Copyright (c) 2013 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_MOUNT_POINTS_H_
#define WEBKIT_FILEAPI_MOUNT_POINTS_H_
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/file_path.h"
#include "webkit/fileapi/file_system_util.h"
#include "webkit/storage/webkit_storage_export.h"
class GURL;
namespace fileapi {
class FileSystemURL;
}
namespace fileapi {
// Represents a set of mount points for File API.
class WEBKIT_STORAGE_EXPORT MountPoints {
public:
struct WEBKIT_STORAGE_EXPORT MountPointInfo {
MountPointInfo();
MountPointInfo(const std::string& name, const base::FilePath& path);
// The name to be used to register the path. The registered file can
// be referred by a virtual path /<filesystem_id>/<name>.
// The name should NOT contain a path separator '/'.
std::string name;
// The path of the file.
base::FilePath path;
// For STL operation.
bool operator<(const MountPointInfo& that) const {
return name < that.name;
}
};
MountPoints() {}
virtual ~MountPoints() {}
// Revokes a mount point identified by |mount_name|.
// Returns false if the |mount_name| is not (no longer) registered.
// TODO(kinuko): Probably this should be rather named RevokeMountPoint.
virtual bool RevokeFileSystem(const std::string& mount_name) = 0;
// Returns true if the MountPoints implementation handles filesystems with
// the given mount type.
virtual bool HandlesFileSystemMountType(FileSystemType type) const = 0;
// Same as CreateCrackedFileSystemURL, but cracks FileSystemURL created
// from |url|.
virtual FileSystemURL CrackURL(const GURL& url) const = 0;
// Creates a FileSystemURL with the given origin, type and path and tries to
// crack it as a part of one of the registered mount points.
// If the the URL is not valid or does not belong to any of the mount points
// registered in this context, returns empty, invalid FileSystemURL.
virtual FileSystemURL CreateCrackedFileSystemURL(
const GURL& origin,
fileapi::FileSystemType type,
const base::FilePath& path) const = 0;
// Returns the mount point root path registered for a given |mount_name|.
// Returns false if the given |mount_name| is not valid.
virtual bool GetRegisteredPath(const std::string& mount_name,
base::FilePath* path) const = 0;
// Cracks the given |virtual_path| (which is the path part of a filesystem URL
// without '/external' or '/isolated' prefix part) and populates the
// |mount_name|, |type|, and |path| if the <mount_name> part embedded in
// the |virtual_path| (i.e. the first component of the |virtual_path|) is a
// valid registered filesystem ID or mount name for an existing mount point.
//
// Returns false if the given virtual_path cannot be cracked.
//
// Note that |path| is set to empty paths if the filesystem type is isolated
// and |virtual_path| has no <relative_path> part (i.e. pointing to the
// virtual root).
virtual bool CrackVirtualPath(const base::FilePath& virtual_path,
std::string* mount_name,
FileSystemType* type,
base::FilePath* path) const = 0;
private:
DISALLOW_COPY_AND_ASSIGN(MountPoints);
};
} // namespace fileapi
#endif // WEBKIT_FILEAPI_MOUNT_POINTS_H_
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