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-rw-r--r--dom/file/StringBlobImpl.cpp51
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..8cb657ca5f
--- /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) const {
+ RefPtr<BlobImpl> impl =
+ new StringBlobImpl(Substring(mData, aStart, aLength), aContentType);
+ return impl.forget();
+}
+
+void StringBlobImpl::CreateInputStream(nsIInputStream** aStream,
+ ErrorResult& aRv) const {
+ 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