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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef DOMFileSystemBase_h
#define DOMFileSystemBase_h
#include "modules/filesystem/FileSystemFlags.h"
#include "platform/FileSystemType.h"
#include "platform/weborigin/KURL.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
#include "wtf/text/WTFString.h"
namespace blink {
class WebFileSystem;
}
namespace WebCore {
class DirectoryEntry;
class DirectoryReaderBase;
class EntriesCallback;
class EntryBase;
class EntryCallback;
class ErrorCallback;
class FileError;
class MetadataCallback;
class ExecutionContext;
class SecurityOrigin;
class VoidCallback;
// A common base class for DOMFileSystem and DOMFileSystemSync.
class DOMFileSystemBase : public RefCounted<DOMFileSystemBase> {
public:
enum SynchronousType {
Synchronous,
Asynchronous,
};
// Path prefixes that are used in the filesystem URLs (that can be obtained by toURL()).
// http://www.w3.org/TR/file-system-api/#widl-Entry-toURL
static const char persistentPathPrefix[];
static const char temporaryPathPrefix[];
static const char isolatedPathPrefix[];
static const char externalPathPrefix[];
virtual ~DOMFileSystemBase();
// These are called when a new callback is created and resolved in
// FileSystem API, so that subclasses can track the number of pending
// callbacks if necessary.
virtual void addPendingCallbacks() { }
virtual void removePendingCallbacks() { }
// Overridden by subclasses to handle sync vs async error-handling.
virtual void reportError(PassOwnPtr<ErrorCallback>, PassRefPtr<FileError>) = 0;
const String& name() const { return m_name; }
FileSystemType type() const { return m_type; }
KURL rootURL() const { return m_filesystemRootURL; }
blink::WebFileSystem* fileSystem() const;
SecurityOrigin* securityOrigin() const;
// The clonable flag is used in the structured clone algorithm to test
// whether the FileSystem API object is permitted to be cloned. It defaults
// to false, and must be explicitly set by internal code permit cloning.
void makeClonable() { m_clonable = true; }
bool clonable() const { return m_clonable; }
static bool isValidType(FileSystemType);
static bool crackFileSystemURL(const KURL&, FileSystemType&, String& filePath);
static KURL createFileSystemRootURL(const String& origin, FileSystemType);
bool supportsToURL() const;
KURL createFileSystemURL(const EntryBase*) const;
KURL createFileSystemURL(const String& fullPath) const;
static bool pathToAbsolutePath(FileSystemType, const EntryBase*, String path, String& absolutePath);
static bool pathPrefixToFileSystemType(const String& pathPrefix, FileSystemType&);
// Actual FileSystem API implementations. All the validity checks on virtual paths are done at this level.
void getMetadata(const EntryBase*, PassOwnPtr<MetadataCallback>, PassOwnPtr<ErrorCallback>, SynchronousType = Asynchronous);
void move(const EntryBase* source, EntryBase* parent, const String& name, PassOwnPtr<EntryCallback>, PassOwnPtr<ErrorCallback>, SynchronousType = Asynchronous);
void copy(const EntryBase* source, EntryBase* parent, const String& name, PassOwnPtr<EntryCallback>, PassOwnPtr<ErrorCallback>, SynchronousType = Asynchronous);
void remove(const EntryBase*, PassOwnPtr<VoidCallback>, PassOwnPtr<ErrorCallback>, SynchronousType = Asynchronous);
void removeRecursively(const EntryBase*, PassOwnPtr<VoidCallback>, PassOwnPtr<ErrorCallback>, SynchronousType = Asynchronous);
void getParent(const EntryBase*, PassOwnPtr<EntryCallback>, PassOwnPtr<ErrorCallback>);
void getFile(const EntryBase*, const String& path, const FileSystemFlags&, PassOwnPtr<EntryCallback>, PassOwnPtr<ErrorCallback>, SynchronousType = Asynchronous);
void getDirectory(const EntryBase*, const String& path, const FileSystemFlags&, PassOwnPtr<EntryCallback>, PassOwnPtr<ErrorCallback>, SynchronousType = Asynchronous);
bool readDirectory(PassRefPtr<DirectoryReaderBase>, const String& path, PassOwnPtr<EntriesCallback>, PassOwnPtr<ErrorCallback>, SynchronousType = Asynchronous);
protected:
DOMFileSystemBase(ExecutionContext*, const String& name, FileSystemType, const KURL& rootURL);
friend class DOMFileSystemSync;
ExecutionContext* m_context;
String m_name;
FileSystemType m_type;
KURL m_filesystemRootURL;
bool m_clonable;
};
inline bool operator==(const DOMFileSystemBase& a, const DOMFileSystemBase& b) { return a.name() == b.name() && a.type() == b.type() && a.rootURL() == b.rootURL(); }
} // namespace WebCore
#endif // DOMFileSystemBase_h
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