1 files changed, 106 insertions, 0 deletions
diff --git a/dom/file/MultipartBlobImpl.h b/dom/file/MultipartBlobImpl.h
new file mode 100644
index 0000000000..cb62f2adb5
--- /dev/null
+++ b/dom/file/MultipartBlobImpl.h
@@ -0,0 +1,106 @@
+/* -*- 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/. */
+
+#ifndef mozilla_dom_MultipartBlobImpl_h
+#define mozilla_dom_MultipartBlobImpl_h
+
+#include <utility>
+
+#include "Blob.h"
+#include "nsContentUtils.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/dom/BaseBlobImpl.h"
+
+namespace mozilla {
+class ErrorResult;
+
+namespace dom {
+
+// This is just a sentinel value to be sure that we don't call
+// SetLengthAndModifiedDate more than once.
+constexpr int64_t MULTIPARTBLOBIMPL_UNKNOWN_LAST_MODIFIED = INT64_MAX;
+constexpr uint64_t MULTIPARTBLOBIMPL_UNKNOWN_LENGTH = UINT64_MAX;
+
+class MultipartBlobImpl final : public BaseBlobImpl {
+ public:
+  NS_INLINE_DECL_REFCOUNTING_INHERITED(MultipartBlobImpl, BaseBlobImpl)
+
+  // Create as a file
+  static already_AddRefed<MultipartBlobImpl> Create(
+      nsTArray<RefPtr<BlobImpl>>&& aBlobImpls, const nsAString& aName,
+      const nsAString& aContentType, RTPCallerType aRTPCallerType,
+      ErrorResult& aRv);
+
+  // Create as a blob
+  static already_AddRefed<MultipartBlobImpl> Create(
+      nsTArray<RefPtr<BlobImpl>>&& aBlobImpls, const nsAString& aContentType,
+      ErrorResult& aRv);
+
+  // Create as a file to be later initialized
+  explicit MultipartBlobImpl(const nsAString& aName)
+      : BaseBlobImpl(aName, u""_ns, MULTIPARTBLOBIMPL_UNKNOWN_LENGTH,
+                     MULTIPARTBLOBIMPL_UNKNOWN_LAST_MODIFIED) {}
+
+  // Create as a blob to be later initialized
+  MultipartBlobImpl()
+      : BaseBlobImpl(u""_ns, MULTIPARTBLOBIMPL_UNKNOWN_LENGTH) {}
+
+  void InitializeBlob(RTPCallerType aRTPCallerType, ErrorResult& aRv);
+
+  void InitializeBlob(const Sequence<Blob::BlobPart>& aData,
+                      const nsAString& aContentType, bool aNativeEOL,
+                      RTPCallerType aRTPCallerType, ErrorResult& aRv);
+
+  already_AddRefed<BlobImpl> CreateSlice(uint64_t aStart, uint64_t aLength,
+                                         const nsAString& aContentType,
+                                         ErrorResult& aRv) const override;
+
+  uint64_t GetSize(ErrorResult& aRv) override { return mLength; }
+
+  void CreateInputStream(nsIInputStream** aStream,
+                         ErrorResult& aRv) const override;
+
+  const nsTArray<RefPtr<BlobImpl>>* GetSubBlobImpls() const override {
+    return mBlobImpls.Length() ? &mBlobImpls : nullptr;
+  }
+
+  void SetName(const nsAString& aName) { mName = aName; }
+
+  size_t GetAllocationSize() const override;
+  size_t GetAllocationSize(
+      FallibleTArray<BlobImpl*>& aVisitedBlobs) const override;
+
+  void GetBlobImplType(nsAString& aBlobImplType) const override;
+
+  void SetLastModified(int64_t aLastModified);
+
+ protected:
+  // File constructor.
+  MultipartBlobImpl(nsTArray<RefPtr<BlobImpl>>&& aBlobImpls,
+                    const nsAString& aName, const nsAString& aContentType)
+      : BaseBlobImpl(aName, aContentType, MULTIPARTBLOBIMPL_UNKNOWN_LENGTH,
+                     MULTIPARTBLOBIMPL_UNKNOWN_LAST_MODIFIED),
+        mBlobImpls(std::move(aBlobImpls)) {}
+
+  // Blob constructor.
+  MultipartBlobImpl(nsTArray<RefPtr<BlobImpl>>&& aBlobImpls,
+                    const nsAString& aContentType)
+      : BaseBlobImpl(aContentType, MULTIPARTBLOBIMPL_UNKNOWN_LENGTH),
+        mBlobImpls(std::move(aBlobImpls)) {}
+
+  ~MultipartBlobImpl() override = default;
+
+  void SetLengthAndModifiedDate(const Maybe<RTPCallerType>& aRTPCallerType,
+                                ErrorResult& aRv);
+
+  nsTArray<RefPtr<BlobImpl>> mBlobImpls;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_MultipartBlobImpl_h