diff options
Diffstat (limited to 'dom/file/StringBlobImpl.cpp')
-rw-r--r-- | dom/file/StringBlobImpl.cpp | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/dom/file/StringBlobImpl.cpp b/dom/file/StringBlobImpl.cpp new file mode 100644 index 0000000000..cd24a89156 --- /dev/null +++ b/dom/file/StringBlobImpl.cpp @@ -0,0 +1,51 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "StringBlobImpl.h" +#include "nsStringStream.h" + +namespace mozilla::dom { + +NS_IMPL_ISUPPORTS_INHERITED(StringBlobImpl, BlobImpl, nsIMemoryReporter) + +/* static */ +already_AddRefed<StringBlobImpl> StringBlobImpl::Create( + const nsACString& aData, const nsAString& aContentType) { + RefPtr<StringBlobImpl> blobImpl = new StringBlobImpl(aData, aContentType); + RegisterWeakMemoryReporter(blobImpl); + return blobImpl.forget(); +} + +StringBlobImpl::StringBlobImpl(const nsACString& aData, + const nsAString& aContentType) + : BaseBlobImpl(aContentType, aData.Length()), mData(aData) {} + +StringBlobImpl::~StringBlobImpl() { UnregisterWeakMemoryReporter(this); } + +already_AddRefed<BlobImpl> StringBlobImpl::CreateSlice( + uint64_t aStart, uint64_t aLength, const nsAString& aContentType, + ErrorResult& aRv) { + RefPtr<BlobImpl> impl = + new StringBlobImpl(Substring(mData, aStart, aLength), aContentType); + return impl.forget(); +} + +void StringBlobImpl::CreateInputStream(nsIInputStream** aStream, + ErrorResult& aRv) { + aRv = NS_NewCStringInputStream(aStream, mData); +} + +NS_IMETHODIMP +StringBlobImpl::CollectReports(nsIHandleReportCallback* aHandleReport, + nsISupports* aData, bool aAnonymize) { + MOZ_COLLECT_REPORT("explicit/dom/memory-file-data/string", KIND_HEAP, + UNITS_BYTES, + mData.SizeOfExcludingThisIfUnshared(MallocSizeOf), + "Memory used to back a File/Blob based on a string."); + return NS_OK; +} + +} // namespace mozilla::dom |