The Tor Browser / file comparison
comparison: dom/file/MetadataHelper.h
dom/file/MetadataHelper.h
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:558059471bb6 |
|---|---|
| 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_metadatahelper_h__ | |
| 8 #define mozilla_dom_file_metadatahelper_h__ | |
| 9 | |
| 10 #include "mozilla/Attributes.h" | |
| 11 #include "FileCommon.h" | |
| 12 | |
| 13 #include "nsIFileStreams.h" | |
| 14 | |
| 15 #include "AsyncHelper.h" | |
| 16 #include "FileHelper.h" | |
| 17 | |
| 18 class nsIFileStream; | |
| 19 | |
| 20 BEGIN_FILE_NAMESPACE | |
| 21 | |
| 22 class MetadataHelper; | |
| 23 | |
| 24 class MetadataParameters MOZ_FINAL | |
| 25 { | |
| 26 friend class MetadataHelper; | |
| 27 | |
| 28 public: | |
| 29 NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MetadataParameters) | |
| 30 | |
| 31 MetadataParameters(bool aSizeRequested, bool aLastModifiedRequested) | |
| 32 : mSizeRequested(aSizeRequested) | |
| 33 , mLastModifiedRequested(aLastModifiedRequested) | |
| 34 { | |
| 35 } | |
| 36 | |
| 37 bool | |
| 38 IsConfigured() const | |
| 39 { | |
| 40 return mSizeRequested || mLastModifiedRequested; | |
| 41 } | |
| 42 | |
| 43 bool | |
| 44 SizeRequested() const | |
| 45 { | |
| 46 return mSizeRequested; | |
| 47 } | |
| 48 | |
| 49 bool | |
| 50 LastModifiedRequested() const | |
| 51 { | |
| 52 return mLastModifiedRequested; | |
| 53 } | |
| 54 | |
| 55 uint64_t | |
| 56 Size() const | |
| 57 { | |
| 58 return mSize; | |
| 59 } | |
| 60 | |
| 61 int64_t | |
| 62 LastModified() const | |
| 63 { | |
| 64 return mLastModified; | |
| 65 } | |
| 66 | |
| 67 private: | |
| 68 // Private destructor, to discourage deletion outside of Release(): | |
| 69 ~MetadataParameters() | |
| 70 { | |
| 71 } | |
| 72 | |
| 73 uint64_t mSize; | |
| 74 int64_t mLastModified; | |
| 75 bool mSizeRequested; | |
| 76 bool mLastModifiedRequested; | |
| 77 }; | |
| 78 | |
| 79 class MetadataHelper : public FileHelper | |
| 80 { | |
| 81 public: | |
| 82 MetadataHelper(LockedFile* aLockedFile, | |
| 83 FileRequest* aFileRequest, | |
| 84 MetadataParameters* aParams) | |
| 85 : FileHelper(aLockedFile, aFileRequest), | |
| 86 mParams(aParams) | |
| 87 { } | |
| 88 | |
| 89 nsresult | |
| 90 DoAsyncRun(nsISupports* aStream) MOZ_OVERRIDE; | |
| 91 | |
| 92 nsresult | |
| 93 GetSuccessResult(JSContext* aCx, | |
| 94 JS::MutableHandle<JS::Value> aVal) MOZ_OVERRIDE; | |
| 95 | |
| 96 protected: | |
| 97 class AsyncMetadataGetter : public AsyncHelper | |
| 98 { | |
| 99 public: | |
| 100 AsyncMetadataGetter(nsISupports* aStream, MetadataParameters* aParams, | |
| 101 bool aReadWrite) | |
| 102 : AsyncHelper(aStream), | |
| 103 mParams(aParams), mReadWrite(aReadWrite) | |
| 104 { } | |
| 105 | |
| 106 protected: | |
| 107 nsresult | |
| 108 DoStreamWork(nsISupports* aStream) MOZ_OVERRIDE; | |
| 109 | |
| 110 private: | |
| 111 nsRefPtr<MetadataParameters> mParams; | |
| 112 bool mReadWrite; | |
| 113 }; | |
| 114 | |
| 115 nsRefPtr<MetadataParameters> mParams; | |
| 116 }; | |
| 117 | |
| 118 END_FILE_NAMESPACE | |
| 119 | |
| 120 #endif // mozilla_dom_file_metadatahelper_h__ |
