The Tor Browser / file comparison
comparison: dom/file/FileHelper.h
dom/file/FileHelper.h
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:eb13cb8c1ed1 |
|---|---|
| 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_filehelper_h__ | |
| 8 #define mozilla_dom_file_filehelper_h__ | |
| 9 | |
| 10 #include "FileCommon.h" | |
| 11 | |
| 12 #include "nsIRequestObserver.h" | |
| 13 | |
| 14 class nsIFileStorage; | |
| 15 | |
| 16 BEGIN_FILE_NAMESPACE | |
| 17 | |
| 18 class FileHelper; | |
| 19 class FileRequest; | |
| 20 class FileOutputStreamWrapper; | |
| 21 class LockedFile; | |
| 22 | |
| 23 class FileHelperListener | |
| 24 { | |
| 25 public: | |
| 26 NS_IMETHOD_(MozExternalRefCountType) | |
| 27 AddRef() = 0; | |
| 28 | |
| 29 NS_IMETHOD_(MozExternalRefCountType) | |
| 30 Release() = 0; | |
| 31 | |
| 32 virtual void | |
| 33 OnFileHelperComplete(FileHelper* aFileHelper) = 0; | |
| 34 }; | |
| 35 | |
| 36 /** | |
| 37 * Must be subclassed. The subclass must implement DoAsyncRun. It may then | |
| 38 * choose to implement GetSuccessResult to properly set the result of the | |
| 39 * success event. Call Enqueue to start the file operation. | |
| 40 */ | |
| 41 class FileHelper : public nsIRequestObserver | |
| 42 { | |
| 43 friend class FileRequest; | |
| 44 friend class FileOutputStreamWrapper; | |
| 45 | |
| 46 public: | |
| 47 NS_DECL_THREADSAFE_ISUPPORTS | |
| 48 NS_DECL_NSIREQUESTOBSERVER | |
| 49 | |
| 50 nsresult | |
| 51 Enqueue(); | |
| 52 | |
| 53 nsresult | |
| 54 AsyncRun(FileHelperListener* aListener); | |
| 55 | |
| 56 void | |
| 57 OnStreamProgress(uint64_t aProgress, uint64_t aProgressMax); | |
| 58 | |
| 59 void | |
| 60 OnStreamClose(); | |
| 61 | |
| 62 void | |
| 63 OnStreamDestroy(); | |
| 64 | |
| 65 static LockedFile* | |
| 66 GetCurrentLockedFile(); | |
| 67 | |
| 68 protected: | |
| 69 FileHelper(LockedFile* aLockedFile, FileRequest* aRequest); | |
| 70 | |
| 71 virtual ~FileHelper(); | |
| 72 | |
| 73 virtual nsresult | |
| 74 DoAsyncRun(nsISupports* aStream) = 0; | |
| 75 | |
| 76 virtual nsresult | |
| 77 GetSuccessResult(JSContext* aCx, JS::MutableHandle<JS::Value> aVal); | |
| 78 | |
| 79 virtual void | |
| 80 ReleaseObjects(); | |
| 81 | |
| 82 void | |
| 83 Finish(); | |
| 84 | |
| 85 nsCOMPtr<nsIFileStorage> mFileStorage; | |
| 86 nsRefPtr<LockedFile> mLockedFile; | |
| 87 nsRefPtr<FileRequest> mFileRequest; | |
| 88 | |
| 89 nsRefPtr<FileHelperListener> mListener; | |
| 90 nsCOMPtr<nsIRequest> mRequest; | |
| 91 | |
| 92 private: | |
| 93 nsresult mResultCode; | |
| 94 bool mFinished; | |
| 95 }; | |
| 96 | |
| 97 END_FILE_NAMESPACE | |
| 98 | |
| 99 #endif // mozilla_dom_file_filehelper_h__ |
