1 files changed, 90 insertions, 0 deletions
diff --git a/dom/html/HTMLAllCollection.h b/dom/html/HTMLAllCollection.h
new file mode 100644
index 0000000000..6179951175
--- /dev/null
+++ b/dom/html/HTMLAllCollection.h
@@ -0,0 +1,90 @@
+/* -*- 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_HTMLAllCollection_h
+#define mozilla_dom_HTMLAllCollection_h
+
+#include "mozilla/dom/Document.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsISupportsImpl.h"
+#include "nsRefPtrHashtable.h"
+#include "nsWrapperCache.h"
+
+#include <stdint.h>
+
+class nsContentList;
+class nsINode;
+
+namespace mozilla::dom {
+
+class Document;
+class Element;
+class OwningHTMLCollectionOrElement;
+template <typename>
+struct Nullable;
+template <typename>
+class Optional;
+
+class HTMLAllCollection final : public nsISupports, public nsWrapperCache {
+  ~HTMLAllCollection();
+
+ public:
+  explicit HTMLAllCollection(mozilla::dom::Document* aDocument);
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(HTMLAllCollection)
+
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+  nsINode* GetParentObject() const;
+
+  uint32_t Length();
+  Element* IndexedGetter(uint32_t aIndex, bool& aFound) {
+    Element* result = Item(aIndex);
+    aFound = !!result;
+    return result;
+  }
+
+  void NamedItem(const nsAString& aName,
+                 Nullable<OwningHTMLCollectionOrElement>& aResult) {
+    bool found = false;
+    NamedGetter(aName, found, aResult);
+  }
+  void NamedGetter(const nsAString& aName, bool& aFound,
+                   Nullable<OwningHTMLCollectionOrElement>& aResult);
+  void GetSupportedNames(nsTArray<nsString>& aNames);
+
+  void Item(const Optional<nsAString>& aNameOrIndex,
+            Nullable<OwningHTMLCollectionOrElement>& aResult);
+
+  void LegacyCall(JS::Handle<JS::Value>,
+                  const Optional<nsAString>& aNameOrIndex,
+                  Nullable<OwningHTMLCollectionOrElement>& aResult) {
+    Item(aNameOrIndex, aResult);
+  }
+
+ private:
+  nsContentList* Collection();
+
+  /**
+   * Returns the HTMLCollection for document.all[aID], or null if there isn't
+   * one.
+   */
+  nsContentList* GetDocumentAllList(const nsAString& aID);
+
+  /**
+   * Helper for indexed getter and spec Item() method.
+   */
+  Element* Item(uint32_t aIndex);
+
+  RefPtr<mozilla::dom::Document> mDocument;
+  RefPtr<nsContentList> mCollection;
+  nsRefPtrHashtable<nsStringHashKey, nsContentList> mNamedMap;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_HTMLAllCollection_h