dom/file/StringBlobImpl.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_StringBlobImpl_h
   8 #define mozilla_dom_StringBlobImpl_h
   9
  10 #include "BaseBlobImpl.h"
  11 #include "nsIMemoryReporter.h"
  12
  13 namespace mozilla::dom {
  14
  15 class StringBlobImpl final : public BaseBlobImpl, public nsIMemoryReporter {
  16   MOZ_DEFINE_MALLOC_SIZE_OF(MallocSizeOf)
  17
  18  public:
  19   NS_DECL_ISUPPORTS_INHERITED
  20   NS_DECL_NSIMEMORYREPORTER
  21
  22   static already_AddRefed<StringBlobImpl> Create(const nsACString& aData,
  23                                                  const nsAString& aContentType);
  24
  25   void CreateInputStream(nsIInputStream** aStream,
  26                          ErrorResult& aRv) const override;
  27
  28   already_AddRefed<BlobImpl> CreateSlice(uint64_t aStart, uint64_t aLength,
  29                                          const nsAString& aContentType,
  30                                          ErrorResult& aRv) const override;
  31
  32   size_t GetAllocationSize() const override { return mData.Length(); }
  33
  34   size_t GetAllocationSize(
  35       FallibleTArray<BlobImpl*>& aVisitedBlobImpls) const override {
  36     return GetAllocationSize();
  37   }
  38
  39   void GetBlobImplType(nsAString& aBlobImplType) const override {
  40     aBlobImplType = u"StringBlobImpl"_ns;
  41   }
  42
  43  private:
  44   StringBlobImpl(const nsACString& aData, const nsAString& aContentType);
  45
  46   ~StringBlobImpl() override;
  47
  48   nsCString mData;
  49 };
  50
  51 }  // namespace mozilla::dom
  52
  53 #endif  // mozilla_dom_StringBlobImpl_h