diff options
Diffstat (limited to 'dom/base/StructuredCloneBlob.h')
-rw-r--r-- | dom/base/StructuredCloneBlob.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/dom/base/StructuredCloneBlob.h b/dom/base/StructuredCloneBlob.h new file mode 100644 index 0000000000..9d4320b000 --- /dev/null +++ b/dom/base/StructuredCloneBlob.h @@ -0,0 +1,89 @@ +/* -*- 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_StructuredCloneBlob_h +#define mozilla_dom_StructuredCloneBlob_h + +#include "js/TypeDecls.h" +#include "mozilla/AlreadyAddRefed.h" +#include "mozilla/Maybe.h" +#include "mozilla/RefPtr.h" +#include "mozilla/dom/StructuredCloneHolder.h" +#include "nsIMemoryReporter.h" +#include "nsISupports.h" + +struct JSStructuredCloneReader; +struct JSStructuredCloneWriter; + +namespace mozilla { + +class ErrorResult; + +namespace dom { + +class GlobalObject; + +class StructuredCloneBlob final : public nsIMemoryReporter { + MOZ_DEFINE_MALLOC_SIZE_OF(MallocSizeOf) + + public: + NS_DECL_ISUPPORTS + NS_DECL_NSIMEMORYREPORTER + + static JSObject* ReadStructuredClone(JSContext* aCx, + JSStructuredCloneReader* aReader, + StructuredCloneHolder* aHolder); + bool WriteStructuredClone(JSContext* aCx, JSStructuredCloneWriter* aWriter, + StructuredCloneHolder* aHolder); + + static already_AddRefed<StructuredCloneBlob> Constructor( + GlobalObject& aGlobal, const nsACString& aName, + const nsACString& aAnonymizedName, JS::Handle<JS::Value> aValue, + JS::Handle<JSObject*> aTargetGlobal, ErrorResult& aRv); + + void Deserialize(JSContext* aCx, JS::Handle<JSObject*> aTargetScope, + bool aKeepData, JS::MutableHandle<JS::Value> aResult, + ErrorResult& aRv); + + nsISupports* GetParentObject() const { return nullptr; } + JSObject* GetWrapper() const { return nullptr; } + + bool WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto, + JS::MutableHandle<JSObject*> aResult); + + protected: + virtual ~StructuredCloneBlob(); + + private: + explicit StructuredCloneBlob(); + + class Holder : public StructuredCloneHolder { + public: + using StructuredCloneHolder::StructuredCloneHolder; + + bool ReadStructuredCloneInternal(JSContext* aCx, + JSStructuredCloneReader* aReader, + StructuredCloneHolder* aHolder); + + bool WriteStructuredClone(JSContext* aCx, JSStructuredCloneWriter* aWriter, + StructuredCloneHolder* aHolder); + }; + + nsCString mName; + nsCString mAnonymizedName; + Maybe<Holder> mHolder; + + static already_AddRefed<StructuredCloneBlob> Create() { + RefPtr<StructuredCloneBlob> holder = new StructuredCloneBlob(); + RegisterWeakMemoryReporter(holder); + return holder.forget(); + } +}; + +} // namespace dom +} // namespace mozilla + +#endif // mozilla_dom_StructuredCloneBlob_h |