| /* |
| * 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 "core/fileapi/FileError.h" |
| #include "modules/ModulesExport.h" |
| #include "modules/filesystem/FileSystemFlags.h" |
| #include "platform/FileSystemType.h" |
| #include "platform/heap/Handle.h" |
| #include "platform/weborigin/KURL.h" |
| #include "wtf/text/WTFString.h" |
| |
| namespace blink { |
| class WebFileSystem; |
| } |
| |
| namespace blink { |
| |
| class DirectoryReaderBase; |
| class EntriesCallback; |
| class EntryBase; |
| class EntryCallback; |
| class ErrorCallbackBase; |
| class File; |
| class FileMetadata; |
| class MetadataCallback; |
| class ExecutionContext; |
| class SecurityOrigin; |
| class VoidCallback; |
| |
| // A common base class for DOMFileSystem and DOMFileSystemSync. |
| class MODULES_EXPORT DOMFileSystemBase |
| : public GarbageCollectedFinalized<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(ErrorCallbackBase*, FileError::ErrorCode) = 0; |
| |
| const String& name() const { return m_name; } |
| FileSystemType type() const { return m_type; } |
| KURL rootURL() const { return m_filesystemRootURL; } |
| WebFileSystem* fileSystem() const; |
| SecurityOrigin* getSecurityOrigin() 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 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&); |
| static File* createFile(const FileMetadata&, |
| const KURL& fileSystemURL, |
| FileSystemType, |
| const String name); |
| |
| // Actual FileSystem API implementations. All the validity checks on virtual |
| // paths are done at this level. |
| void getMetadata(const EntryBase*, |
| MetadataCallback*, |
| ErrorCallbackBase*, |
| SynchronousType = Asynchronous); |
| void move(const EntryBase* source, |
| EntryBase* parent, |
| const String& name, |
| EntryCallback*, |
| ErrorCallbackBase*, |
| SynchronousType = Asynchronous); |
| void copy(const EntryBase* source, |
| EntryBase* parent, |
| const String& name, |
| EntryCallback*, |
| ErrorCallbackBase*, |
| SynchronousType = Asynchronous); |
| void remove(const EntryBase*, |
| VoidCallback*, |
| ErrorCallbackBase*, |
| SynchronousType = Asynchronous); |
| void removeRecursively(const EntryBase*, |
| VoidCallback*, |
| ErrorCallbackBase*, |
| SynchronousType = Asynchronous); |
| void getParent(const EntryBase*, EntryCallback*, ErrorCallbackBase*); |
| void getFile(const EntryBase*, |
| const String& path, |
| const FileSystemFlags&, |
| EntryCallback*, |
| ErrorCallbackBase*, |
| SynchronousType = Asynchronous); |
| void getDirectory(const EntryBase*, |
| const String& path, |
| const FileSystemFlags&, |
| EntryCallback*, |
| ErrorCallbackBase*, |
| SynchronousType = Asynchronous); |
| int readDirectory(DirectoryReaderBase*, |
| const String& path, |
| EntriesCallback*, |
| ErrorCallbackBase*, |
| SynchronousType = Asynchronous); |
| bool waitForAdditionalResult(int callbacksId); |
| |
| DECLARE_VIRTUAL_TRACE(); |
| |
| protected: |
| DOMFileSystemBase(ExecutionContext*, |
| const String& name, |
| FileSystemType, |
| const KURL& rootURL); |
| |
| friend class DOMFileSystemBaseTest; |
| friend class DOMFileSystemSync; |
| |
| Member<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 blink |
| |
| #endif // DOMFileSystemBase_h |