dom/file/File.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/dom/file/File.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,78 @@
     1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* vim: set ts=2 et sw=2 tw=80: */
     1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
     1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +#include "File.h"
    1.11 +
    1.12 +#include "LockedFile.h"
    1.13 +
    1.14 +USING_FILE_NAMESPACE
    1.15 +using mozilla::dom::indexedDB::IndexedDatabaseManager;
    1.16 +
    1.17 +// Create slice
    1.18 +File::File(const File* aOther, uint64_t aStart, uint64_t aLength,
    1.19 +           const nsAString& aContentType)
    1.20 +: nsDOMFileCC(aContentType, aOther->mStart + aStart, aLength),
    1.21 +  mFile(aOther->mFile), mLockedFile(aOther->mLockedFile),
    1.22 +  mWholeFile(false), mStoredFile(aOther->mStoredFile)
    1.23 +{
    1.24 +  NS_ASSERTION(mFile, "Null file!");
    1.25 +  NS_ASSERTION(mLockedFile, "Null locked file!");
    1.26 +
    1.27 +  if (mStoredFile) {
    1.28 +    FileInfo* fileInfo;
    1.29 +
    1.30 +    if (IndexedDatabaseManager::IsClosed()) {
    1.31 +      fileInfo = aOther->GetFileInfo();
    1.32 +    }
    1.33 +    else {
    1.34 +      MutexAutoLock lock(IndexedDatabaseManager::FileMutex());
    1.35 +      fileInfo = aOther->GetFileInfo();
    1.36 +    }
    1.37 +
    1.38 +    mFileInfos.AppendElement(fileInfo);
    1.39 +  }
    1.40 +}
    1.41 +
    1.42 +NS_IMPL_CYCLE_COLLECTION_INHERITED(File, nsDOMFileCC,
    1.43 +                                   mLockedFile)
    1.44 +
    1.45 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(File)
    1.46 +NS_INTERFACE_MAP_END_INHERITING(nsDOMFileCC)
    1.47 +
    1.48 +NS_IMPL_ADDREF_INHERITED(File, nsDOMFileCC)
    1.49 +NS_IMPL_RELEASE_INHERITED(File, nsDOMFileCC)
    1.50 +
    1.51 +NS_IMETHODIMP
    1.52 +File::GetInternalStream(nsIInputStream **aStream)
    1.53 +{
    1.54 +  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    1.55 +
    1.56 +  nsresult rv = mLockedFile->OpenInputStream(mWholeFile, mStart, mLength,
    1.57 +                                             aStream);
    1.58 +  NS_ENSURE_SUCCESS(rv, rv);
    1.59 +
    1.60 +  return NS_OK;
    1.61 +}
    1.62 +
    1.63 +already_AddRefed<nsIDOMBlob>
    1.64 +File::CreateSlice(uint64_t aStart, uint64_t aLength,
    1.65 +                  const nsAString& aContentType)
    1.66 +{
    1.67 +  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    1.68 +
    1.69 +  nsCOMPtr<nsIDOMBlob> t =
    1.70 +    new File(this, aStart, aLength, aContentType);
    1.71 +  return t.forget();
    1.72 +}
    1.73 +
    1.74 +NS_IMETHODIMP
    1.75 +File::GetMozFullPathInternal(nsAString &aFilename)
    1.76 +{
    1.77 +  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    1.78 +  NS_ASSERTION(mIsFile, "Should only be called on files");
    1.79 +
    1.80 +  return mFile->GetPath(aFilename);
    1.81 +}

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