The Tor Browser / file comparison
comparison: dom/file/FileHandle.h
dom/file/FileHandle.h
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:96f5e1144332 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set ts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 5 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef mozilla_dom_file_filehandle_h__ | |
| 8 #define mozilla_dom_file_filehandle_h__ | |
| 9 | |
| 10 #include "FileCommon.h" | |
| 11 | |
| 12 #include "nsIFile.h" | |
| 13 #include "nsIFileStorage.h" | |
| 14 | |
| 15 #include "mozilla/Attributes.h" | |
| 16 #include "mozilla/DOMEventTargetHelper.h" | |
| 17 #include "mozilla/dom/FileModeBinding.h" | |
| 18 | |
| 19 class nsIDOMFile; | |
| 20 class nsIFileStorage; | |
| 21 class nsPIDOMWindow; | |
| 22 | |
| 23 namespace mozilla { | |
| 24 namespace dom { | |
| 25 class DOMRequest; | |
| 26 namespace indexedDB { | |
| 27 class FileInfo; | |
| 28 } // namespace indexedDB | |
| 29 } // namespace dom | |
| 30 } // namespace mozilla | |
| 31 | |
| 32 BEGIN_FILE_NAMESPACE | |
| 33 | |
| 34 class FileService; | |
| 35 class LockedFile; | |
| 36 class FinishHelper; | |
| 37 class FileHelper; | |
| 38 | |
| 39 /** | |
| 40 * This class provides a default FileHandle implementation, but it can be also | |
| 41 * subclassed. The subclass can override implementation of GetFileId, | |
| 42 * GetFileInfo, CreateStream and CreateFileObject. | |
| 43 * (for example IDBFileHandle provides IndexedDB specific implementation). | |
| 44 */ | |
| 45 class FileHandle : public DOMEventTargetHelper | |
| 46 { | |
| 47 friend class FileService; | |
| 48 friend class LockedFile; | |
| 49 friend class FinishHelper; | |
| 50 friend class FileHelper; | |
| 51 | |
| 52 public: | |
| 53 NS_DECL_ISUPPORTS_INHERITED | |
| 54 NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(FileHandle, DOMEventTargetHelper) | |
| 55 | |
| 56 static already_AddRefed<FileHandle> | |
| 57 Create(nsPIDOMWindow* aWindow, | |
| 58 nsIFileStorage* aFileStorage, | |
| 59 nsIFile* aFile); | |
| 60 | |
| 61 const nsAString& | |
| 62 Name() const | |
| 63 { | |
| 64 return mName; | |
| 65 } | |
| 66 | |
| 67 const nsAString& | |
| 68 Type() const | |
| 69 { | |
| 70 return mType; | |
| 71 } | |
| 72 | |
| 73 virtual int64_t | |
| 74 GetFileId() | |
| 75 { | |
| 76 return -1; | |
| 77 } | |
| 78 | |
| 79 virtual mozilla::dom::indexedDB::FileInfo* | |
| 80 GetFileInfo() | |
| 81 { | |
| 82 return nullptr; | |
| 83 } | |
| 84 | |
| 85 virtual already_AddRefed<nsISupports> | |
| 86 CreateStream(nsIFile* aFile, bool aReadOnly); | |
| 87 | |
| 88 virtual already_AddRefed<nsIDOMFile> | |
| 89 CreateFileObject(LockedFile* aLockedFile, uint32_t aFileSize); | |
| 90 | |
| 91 // nsWrapperCache | |
| 92 virtual JSObject* | |
| 93 WrapObject(JSContext* aCx) MOZ_OVERRIDE; | |
| 94 | |
| 95 // WebIDL | |
| 96 nsPIDOMWindow* | |
| 97 GetParentObject() const | |
| 98 { | |
| 99 return GetOwner(); | |
| 100 } | |
| 101 | |
| 102 void | |
| 103 GetName(nsString& aName) const | |
| 104 { | |
| 105 aName = mName; | |
| 106 } | |
| 107 | |
| 108 void | |
| 109 GetType(nsString& aType) const | |
| 110 { | |
| 111 aType = mType; | |
| 112 } | |
| 113 | |
| 114 already_AddRefed<LockedFile> | |
| 115 Open(FileMode aMode, ErrorResult& aError); | |
| 116 | |
| 117 already_AddRefed<DOMRequest> | |
| 118 GetFile(ErrorResult& aError); | |
| 119 | |
| 120 IMPL_EVENT_HANDLER(abort) | |
| 121 IMPL_EVENT_HANDLER(error) | |
| 122 | |
| 123 protected: | |
| 124 FileHandle(nsPIDOMWindow* aWindow) | |
| 125 : DOMEventTargetHelper(aWindow) | |
| 126 { | |
| 127 } | |
| 128 | |
| 129 FileHandle(DOMEventTargetHelper* aOwner) | |
| 130 : DOMEventTargetHelper(aOwner) | |
| 131 { | |
| 132 } | |
| 133 | |
| 134 ~FileHandle() | |
| 135 { | |
| 136 } | |
| 137 | |
| 138 nsCOMPtr<nsIFileStorage> mFileStorage; | |
| 139 | |
| 140 nsString mName; | |
| 141 nsString mType; | |
| 142 | |
| 143 nsCOMPtr<nsIFile> mFile; | |
| 144 nsString mFileName; | |
| 145 }; | |
| 146 | |
| 147 END_FILE_NAMESPACE | |
| 148 | |
| 149 #endif // mozilla_dom_file_filehandle_h__ |
