dom/file/File.cpp

branch
TOR_BUG_9701
changeset 15
b8a032363ba2
equal deleted inserted replaced
-1:000000000000 0:e3fa1371c0de
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 #include "File.h"
8
9 #include "LockedFile.h"
10
11 USING_FILE_NAMESPACE
12 using mozilla::dom::indexedDB::IndexedDatabaseManager;
13
14 // Create slice
15 File::File(const File* aOther, uint64_t aStart, uint64_t aLength,
16 const nsAString& aContentType)
17 : nsDOMFileCC(aContentType, aOther->mStart + aStart, aLength),
18 mFile(aOther->mFile), mLockedFile(aOther->mLockedFile),
19 mWholeFile(false), mStoredFile(aOther->mStoredFile)
20 {
21 NS_ASSERTION(mFile, "Null file!");
22 NS_ASSERTION(mLockedFile, "Null locked file!");
23
24 if (mStoredFile) {
25 FileInfo* fileInfo;
26
27 if (IndexedDatabaseManager::IsClosed()) {
28 fileInfo = aOther->GetFileInfo();
29 }
30 else {
31 MutexAutoLock lock(IndexedDatabaseManager::FileMutex());
32 fileInfo = aOther->GetFileInfo();
33 }
34
35 mFileInfos.AppendElement(fileInfo);
36 }
37 }
38
39 NS_IMPL_CYCLE_COLLECTION_INHERITED(File, nsDOMFileCC,
40 mLockedFile)
41
42 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(File)
43 NS_INTERFACE_MAP_END_INHERITING(nsDOMFileCC)
44
45 NS_IMPL_ADDREF_INHERITED(File, nsDOMFileCC)
46 NS_IMPL_RELEASE_INHERITED(File, nsDOMFileCC)
47
48 NS_IMETHODIMP
49 File::GetInternalStream(nsIInputStream **aStream)
50 {
51 NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
52
53 nsresult rv = mLockedFile->OpenInputStream(mWholeFile, mStart, mLength,
54 aStream);
55 NS_ENSURE_SUCCESS(rv, rv);
56
57 return NS_OK;
58 }
59
60 already_AddRefed<nsIDOMBlob>
61 File::CreateSlice(uint64_t aStart, uint64_t aLength,
62 const nsAString& aContentType)
63 {
64 NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
65
66 nsCOMPtr<nsIDOMBlob> t =
67 new File(this, aStart, aLength, aContentType);
68 return t.forget();
69 }
70
71 NS_IMETHODIMP
72 File::GetMozFullPathInternal(nsAString &aFilename)
73 {
74 NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
75 NS_ASSERTION(mIsFile, "Should only be called on files");
76
77 return mFile->GetPath(aFilename);
78 }

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