1 files changed, 144 insertions, 0 deletions
diff --git a/dom/fetch/Headers.h b/dom/fetch/Headers.h
new file mode 100644
index 000000000..b603dc836
--- /dev/null
+++ b/dom/fetch/Headers.h
@@ -0,0 +1,144 @@
+/* -*- 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_Headers_h
+#define mozilla_dom_Headers_h
+
+#include "mozilla/dom/HeadersBinding.h"
+
+#include "nsClassHashtable.h"
+#include "nsWrapperCache.h"
+
+#include "InternalHeaders.h"
+
+namespace mozilla {
+
+class ErrorResult;
+
+namespace dom {
+
+template<typename T> class MozMap;
+class HeadersOrByteStringSequenceSequenceOrByteStringMozMap;
+class OwningHeadersOrByteStringSequenceSequenceOrByteStringMozMap;
+
+/**
+ * This Headers class is only used to represent the content facing Headers
+ * object. It is actually backed by an InternalHeaders implementation. Gecko
+ * code should NEVER use this, except in the Request and Response
+ * implementations, where they must always be created from the backing
+ * InternalHeaders object.
+ */
+class Headers final : public nsISupports
+                    , public nsWrapperCache
+{
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(Headers)
+
+  friend class Request;
+  friend class Response;
+
+private:
+  nsCOMPtr<nsISupports> mOwner;
+  RefPtr<InternalHeaders> mInternalHeaders;
+
+public:
+  explicit Headers(nsISupports* aOwner, InternalHeaders* aInternalHeaders)
+    : mOwner(aOwner)
+    , mInternalHeaders(aInternalHeaders)
+  {
+  }
+
+  explicit Headers(const Headers& aOther) = delete;
+
+  static bool PrefEnabled(JSContext* cx, JSObject* obj);
+
+  static already_AddRefed<Headers>
+  Constructor(const GlobalObject& aGlobal,
+              const Optional<HeadersOrByteStringSequenceSequenceOrByteStringMozMap>& aInit,
+              ErrorResult& aRv);
+
+  static already_AddRefed<Headers>
+  Constructor(const GlobalObject& aGlobal,
+              const OwningHeadersOrByteStringSequenceSequenceOrByteStringMozMap& aInit,
+              ErrorResult& aRv);
+
+  static already_AddRefed<Headers>
+  Create(nsIGlobalObject* aGlobalObject,
+         const OwningHeadersOrByteStringSequenceSequenceOrByteStringMozMap& aInit,
+         ErrorResult& aRv);
+
+  void Append(const nsACString& aName, const nsACString& aValue,
+              ErrorResult& aRv)
+  {
+    mInternalHeaders->Append(aName, aValue, aRv);
+  }
+
+  void Delete(const nsACString& aName, ErrorResult& aRv)
+  {
+    mInternalHeaders->Delete(aName, aRv);
+  }
+
+  void Get(const nsACString& aName, nsACString& aValue, ErrorResult& aRv) const
+  {
+    mInternalHeaders->Get(aName, aValue, aRv);
+  }
+
+  void GetFirst(const nsACString& aName, nsACString& aValue, ErrorResult& aRv) const
+  {
+    mInternalHeaders->GetFirst(aName, aValue, aRv);
+  }
+
+  bool Has(const nsACString& aName, ErrorResult& aRv) const
+  {
+    return mInternalHeaders->Has(aName, aRv);
+  }
+
+  void Set(const nsACString& aName, const nsACString& aValue, ErrorResult& aRv)
+  {
+    mInternalHeaders->Set(aName, aValue, aRv);
+  }
+
+  uint32_t GetIterableLength() const
+  {
+    return mInternalHeaders->GetIterableLength();
+  }
+  const nsString GetKeyAtIndex(unsigned aIndex) const
+  {
+    return mInternalHeaders->GetKeyAtIndex(aIndex);
+  }
+  const nsString GetValueAtIndex(unsigned aIndex) const
+  {
+    return mInternalHeaders->GetValueAtIndex(aIndex);
+  }
+
+  // ChromeOnly
+  HeadersGuardEnum Guard() const
+  {
+    return mInternalHeaders->Guard();
+  }
+
+  void SetGuard(HeadersGuardEnum aGuard, ErrorResult& aRv)
+  {
+    mInternalHeaders->SetGuard(aGuard, aRv);
+  }
+
+  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+  nsISupports* GetParentObject() const { return mOwner; }
+
+private:
+  virtual ~Headers();
+
+  InternalHeaders*
+  GetInternalHeaders() const
+  {
+    return mInternalHeaders;
+  }
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_Headers_h