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| 1 /* | |
| 2 * Copyright (C) 2010 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #ifndef DOMFileSystemBase_h | |
| 32 #define DOMFileSystemBase_h | |
| 33 | |
| 34 #include "core/fileapi/FileError.h" | |
| 35 #include "modules/ModulesExport.h" | |
| 36 #include "modules/filesystem/FileSystemFlags.h" | |
| 37 #include "platform/FileSystemType.h" | |
| 38 #include "platform/heap/Handle.h" | |
| 39 #include "platform/weborigin/KURL.h" | |
| 40 #include "wtf/text/WTFString.h" | |
| 41 | |
| 42 namespace blink { | |
| 43 class WebFileSystem; | |
| 44 } | |
| 45 | |
| 46 namespace blink { | |
| 47 | |
| 48 class DirectoryReaderBase; | |
| 49 class EntriesCallback; | |
| 50 class EntryBase; | |
| 51 class EntryCallback; | |
| 52 class ErrorCallbackBase; | |
| 53 class File; | |
| 54 class FileMetadata; | |
| 55 class MetadataCallback; | |
| 56 class ExecutionContext; | |
| 57 class SecurityOrigin; | |
| 58 class VoidCallback; | |
| 59 | |
| 60 // A common base class for DOMFileSystem and DOMFileSystemSync. | |
| 61 class MODULES_EXPORT DOMFileSystemBase | |
| 62 : public GarbageCollectedFinalized<DOMFileSystemBase> { | |
| 63 public: | |
| 64 enum SynchronousType { | |
| 65 Synchronous, | |
| 66 Asynchronous, | |
| 67 }; | |
| 68 | |
| 69 // Path prefixes that are used in the filesystem URLs (that can be obtained by | |
| 70 // toURL()). http://www.w3.org/TR/file-system-api/#widl-Entry-toURL | |
| 71 static const char persistentPathPrefix[]; | |
| 72 static const char temporaryPathPrefix[]; | |
| 73 static const char isolatedPathPrefix[]; | |
| 74 static const char externalPathPrefix[]; | |
| 75 | |
| 76 virtual ~DOMFileSystemBase(); | |
| 77 | |
| 78 // These are called when a new callback is created and resolved in | |
| 79 // FileSystem API, so that subclasses can track the number of pending | |
| 80 // callbacks if necessary. | |
| 81 virtual void addPendingCallbacks() {} | |
| 82 virtual void removePendingCallbacks() {} | |
| 83 | |
| 84 // Overridden by subclasses to handle sync vs async error-handling. | |
| 85 virtual void reportError(ErrorCallbackBase*, FileError::ErrorCode) = 0; | |
| 86 | |
| 87 const String& name() const { return m_name; } | |
| 88 FileSystemType type() const { return m_type; } | |
| 89 KURL rootURL() const { return m_filesystemRootURL; } | |
| 90 WebFileSystem* fileSystem() const; | |
| 91 SecurityOrigin* getSecurityOrigin() const; | |
| 92 | |
| 93 // The clonable flag is used in the structured clone algorithm to test | |
| 94 // whether the FileSystem API object is permitted to be cloned. It defaults | |
| 95 // to false, and must be explicitly set by internal code permit cloning. | |
| 96 void makeClonable() { m_clonable = true; } | |
| 97 bool clonable() const { return m_clonable; } | |
| 98 | |
| 99 static bool isValidType(FileSystemType); | |
| 100 static KURL createFileSystemRootURL(const String& origin, FileSystemType); | |
| 101 bool supportsToURL() const; | |
| 102 KURL createFileSystemURL(const EntryBase*) const; | |
| 103 KURL createFileSystemURL(const String& fullPath) const; | |
| 104 static bool pathToAbsolutePath(FileSystemType, | |
| 105 const EntryBase*, | |
| 106 String path, | |
| 107 String& absolutePath); | |
| 108 static bool pathPrefixToFileSystemType(const String& pathPrefix, | |
| 109 FileSystemType&); | |
| 110 static File* createFile(const FileMetadata&, | |
| 111 const KURL& fileSystemURL, | |
| 112 FileSystemType, | |
| 113 const String name); | |
| 114 | |
| 115 // Actual FileSystem API implementations. All the validity checks on virtual | |
| 116 // paths are done at this level. | |
| 117 void getMetadata(const EntryBase*, | |
| 118 MetadataCallback*, | |
| 119 ErrorCallbackBase*, | |
| 120 SynchronousType = Asynchronous); | |
| 121 void move(const EntryBase* source, | |
| 122 EntryBase* parent, | |
| 123 const String& name, | |
| 124 EntryCallback*, | |
| 125 ErrorCallbackBase*, | |
| 126 SynchronousType = Asynchronous); | |
| 127 void copy(const EntryBase* source, | |
| 128 EntryBase* parent, | |
| 129 const String& name, | |
| 130 EntryCallback*, | |
| 131 ErrorCallbackBase*, | |
| 132 SynchronousType = Asynchronous); | |
| 133 void remove(const EntryBase*, | |
| 134 VoidCallback*, | |
| 135 ErrorCallbackBase*, | |
| 136 SynchronousType = Asynchronous); | |
| 137 void removeRecursively(const EntryBase*, | |
| 138 VoidCallback*, | |
| 139 ErrorCallbackBase*, | |
| 140 SynchronousType = Asynchronous); | |
| 141 void getParent(const EntryBase*, EntryCallback*, ErrorCallbackBase*); | |
| 142 void getFile(const EntryBase*, | |
| 143 const String& path, | |
| 144 const FileSystemFlags&, | |
| 145 EntryCallback*, | |
| 146 ErrorCallbackBase*, | |
| 147 SynchronousType = Asynchronous); | |
| 148 void getDirectory(const EntryBase*, | |
| 149 const String& path, | |
| 150 const FileSystemFlags&, | |
| 151 EntryCallback*, | |
| 152 ErrorCallbackBase*, | |
| 153 SynchronousType = Asynchronous); | |
| 154 int readDirectory(DirectoryReaderBase*, | |
| 155 const String& path, | |
| 156 EntriesCallback*, | |
| 157 ErrorCallbackBase*, | |
| 158 SynchronousType = Asynchronous); | |
| 159 bool waitForAdditionalResult(int callbacksId); | |
| 160 | |
| 161 DECLARE_VIRTUAL_TRACE(); | |
| 162 | |
| 163 protected: | |
| 164 DOMFileSystemBase(ExecutionContext*, | |
| 165 const String& name, | |
| 166 FileSystemType, | |
| 167 const KURL& rootURL); | |
| 168 | |
| 169 friend class DOMFileSystemBaseTest; | |
| 170 friend class DOMFileSystemSync; | |
| 171 | |
| 172 Member<ExecutionContext> m_context; | |
| 173 String m_name; | |
| 174 FileSystemType m_type; | |
| 175 KURL m_filesystemRootURL; | |
| 176 bool m_clonable; | |
| 177 }; | |
| 178 | |
| 179 inline bool operator==(const DOMFileSystemBase& a, const DOMFileSystemBase& b) { | |
| 180 return a.name() == b.name() && a.type() == b.type() && | |
| 181 a.rootURL() == b.rootURL(); | |
| 182 } | |
| 183 | |
| 184 } // namespace blink | |
| 185 | |
| 186 #endif // DOMFileSystemBase_h | |
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Chromium Code Reviews
Issue 2297043002:
Web expose FileSystemFileEntry, FileSystemDirectoryEntry and friends (Closed)
