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-rw-r--r--dom/file/TemporaryFileBlobImpl.h47
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diff --git a/dom/file/TemporaryFileBlobImpl.h b/dom/file/TemporaryFileBlobImpl.h
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+/* -*- 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_TemporaryFileBlobImpl_h
+#define mozilla_dom_TemporaryFileBlobImpl_h
+
+#include "FileBlobImpl.h"
+
+namespace mozilla::dom {
+
+// This class is meant to be used by TemporaryIPCBlobParent only.
+// Don't use it for anything else, please!
+// Note that CreateInputStream() _must_ be called, and called just once!
+
+// This class is a BlobImpl because it needs to be sent via IPC using
+// IPCBlobUtils.
+class TemporaryFileBlobImpl final : public FileBlobImpl {
+#ifdef DEBUG
+ mutable bool mInputStreamCreated;
+#endif
+
+ public:
+ explicit TemporaryFileBlobImpl(nsIFile* aFile, const nsAString& aContentType);
+
+ // Overrides
+ void CreateInputStream(nsIInputStream** aStream,
+ ErrorResult& aRv) const override;
+
+ void GetBlobImplType(nsAString& aBlobImplType) const override {
+ aBlobImplType = u"TemporaryFileBlobImpl"_ns;
+ }
+
+ protected:
+ ~TemporaryFileBlobImpl() override;
+
+ private:
+ already_AddRefed<BlobImpl> CreateSlice(uint64_t aStart, uint64_t aLength,
+ const nsAString& aContentType,
+ ErrorResult& aRv) const override;
+};
+
+} // namespace mozilla::dom
+
+#endif // mozilla_dom_TemporaryFileBlobImpl_h