dom/base/DecompressionStream.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
   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 DOM_DECOMPRESSIONSTREAM_H_
   8 #define DOM_DECOMPRESSIONSTREAM_H_
   9
  10 #include "js/TypeDecls.h"
  11 #include "mozilla/Attributes.h"
  12 #include "mozilla/ErrorResult.h"
  13 #include "mozilla/dom/BindingDeclarations.h"
  14 #include "nsCycleCollectionParticipant.h"
  15 #include "nsWrapperCache.h"
  16
  17 namespace mozilla::dom {
  18
  19 class ReadableStream;
  20 class WritableStream;
  21 class TransformStream;
  22
  23 enum class CompressionFormat : uint8_t;
  24
  25 class DecompressionStream final : public nsISupports, public nsWrapperCache {
  26  public:
  27   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  28   NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(DecompressionStream)
  29
  30  public:
  31   DecompressionStream(nsISupports* aGlobal, TransformStream& aStream);
  32
  33  protected:
  34   ~DecompressionStream();
  35
  36  public:
  37   nsISupports* GetParentObject() const { return mGlobal; }
  38
  39   JSObject* WrapObject(JSContext* aCx,
  40                        JS::Handle<JSObject*> aGivenProto) override;
  41
  42   // TODO: Mark as MOZ_CAN_RUN_SCRIPT when IDL constructors can be (bug 1749042)
  43   MOZ_CAN_RUN_SCRIPT_BOUNDARY static already_AddRefed<DecompressionStream>
  44   Constructor(const GlobalObject& global, CompressionFormat format,
  45               ErrorResult& aRv);
  46
  47   already_AddRefed<ReadableStream> Readable() const;
  48
  49   already_AddRefed<WritableStream> Writable() const;
  50
  51  private:
  52   nsCOMPtr<nsISupports> mGlobal;
  53
  54   RefPtr<TransformStream> mStream;
  55 };
  56
  57 }  // namespace mozilla::dom
  58
  59 #endif  // DOM_DECOMPRESSIONSTREAM_H_