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diff --git a/accessible/html/HTMLFormControlAccessible.h b/accessible/html/HTMLFormControlAccessible.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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_A11Y_HTMLFormControlAccessible_H_
+#define MOZILLA_A11Y_HTMLFormControlAccessible_H_
+
+#include "FormControlAccessible.h"
+#include "HyperTextAccessibleWrap.h"
+#include "mozilla/dom/Element.h"
+#include "nsAccUtils.h"
+#include "nsIPersistentProperties2.h"
+#include "Relation.h"
+
+namespace mozilla {
+class TextEditor;
+namespace a11y {
+
+/**
+ * Accessible for HTML input@type="radio" element.
+ */
+class HTMLRadioButtonAccessible : public RadioButtonAccessible {
+ public:
+  HTMLRadioButtonAccessible(nsIContent* aContent, DocAccessible* aDoc)
+      : RadioButtonAccessible(aContent, aDoc) {
+    // Ignore "RadioStateChange" DOM event in lieu of document observer
+    // state change notification.
+    mStateFlags |= eIgnoreDOMUIEvent;
+  }
+
+  // Accessible
+  virtual uint64_t NativeState() const override;
+  virtual void GetPositionAndSizeInternal(int32_t* aPosInSet,
+                                          int32_t* aSetSize) override;
+  virtual Relation RelationByType(RelationType aType) const override;
+
+ private:
+  Relation ComputeGroupAttributes(int32_t* aPosInSet, int32_t* aSetSize) const;
+};
+
+/**
+ * Accessible for HTML input@type="button", @type="submit", @type="image"
+ * and HTML button elements.
+ */
+class HTMLButtonAccessible : public HyperTextAccessibleWrap {
+ public:
+  enum { eAction_Click = 0 };
+
+  HTMLButtonAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // Accessible
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual uint64_t State() override;
+  virtual uint64_t NativeState() const override;
+
+  // ActionAccessible
+  virtual uint8_t ActionCount() const override;
+  virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override;
+  virtual bool DoAction(uint8_t aIndex) const override;
+
+  // Widgets
+  virtual bool IsWidget() const override;
+
+ protected:
+  // Accessible
+  virtual ENameValueFlag NativeName(nsString& aName) const override;
+};
+
+/**
+ * Accessible for HTML input@type="text", input@type="password", textarea and
+ * other HTML text controls.
+ */
+class HTMLTextFieldAccessible : public HyperTextAccessibleWrap {
+ public:
+  enum { eAction_Click = 0 };
+
+  HTMLTextFieldAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLTextFieldAccessible,
+                                       HyperTextAccessibleWrap)
+
+  // HyperTextAccessible
+  MOZ_CAN_RUN_SCRIPT_BOUNDARY virtual already_AddRefed<TextEditor> GetEditor()
+      const override;
+
+  // Accessible
+  virtual void Value(nsString& aValue) const override;
+  virtual void ApplyARIAState(uint64_t* aState) const override;
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual uint64_t NativeState() const override;
+  virtual already_AddRefed<nsIPersistentProperties> NativeAttributes() override;
+
+  // ActionAccessible
+  virtual uint8_t ActionCount() const override;
+  virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override;
+  virtual bool DoAction(uint8_t aIndex) const override;
+
+  // Widgets
+  virtual bool IsWidget() const override;
+  virtual Accessible* ContainerWidget() const override;
+
+ protected:
+  virtual ~HTMLTextFieldAccessible() {}
+
+  // Accessible
+  virtual ENameValueFlag NativeName(nsString& aName) const override;
+
+  /**
+   * Return a widget element this input is part of, for example, search-textbox.
+   *
+   * FIXME: This should probably be renamed.
+   */
+  nsIContent* BindingOrWidgetParent() const {
+    if (auto* el = mContent->GetClosestNativeAnonymousSubtreeRootParent()) {
+      return el;
+    }
+    // XUL search-textbox custom element
+    return Elm()->Closest("search-textbox"_ns, IgnoreErrors());
+  }
+};
+
+/**
+ * Accessible for input@type="file" element.
+ */
+class HTMLFileInputAccessible : public HyperTextAccessibleWrap {
+ public:
+  HTMLFileInputAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // Accessible
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual nsresult HandleAccEvent(AccEvent* aAccEvent) override;
+  virtual Accessible* CurrentItem() const override;
+};
+
+/**
+ * Used for HTML input@type="number".
+ */
+class HTMLSpinnerAccessible final : public HTMLTextFieldAccessible {
+ public:
+  HTMLSpinnerAccessible(nsIContent* aContent, DocAccessible* aDoc)
+      : HTMLTextFieldAccessible(aContent, aDoc) {
+    mStateFlags |= eHasNumericValue;
+  }
+
+  // Accessible
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual void Value(nsString& aValue) const override;
+
+  virtual double MaxValue() const override;
+  virtual double MinValue() const override;
+  virtual double CurValue() const override;
+  virtual double Step() const override;
+  virtual bool SetCurValue(double aValue) override;
+};
+
+/**
+ * Used for input@type="range" element.
+ */
+class HTMLRangeAccessible : public LeafAccessible {
+ public:
+  HTMLRangeAccessible(nsIContent* aContent, DocAccessible* aDoc)
+      : LeafAccessible(aContent, aDoc) {
+    mStateFlags |= eHasNumericValue;
+  }
+
+  // Accessible
+  virtual void Value(nsString& aValue) const override;
+  virtual mozilla::a11y::role NativeRole() const override;
+
+  // Value
+  virtual double MaxValue() const override;
+  virtual double MinValue() const override;
+  virtual double CurValue() const override;
+  virtual double Step() const override;
+  virtual bool SetCurValue(double aValue) override;
+
+  // Widgets
+  virtual bool IsWidget() const override;
+};
+
+/**
+ * Accessible for HTML fieldset element.
+ */
+class HTMLGroupboxAccessible : public HyperTextAccessibleWrap {
+ public:
+  HTMLGroupboxAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // Accessible
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual Relation RelationByType(RelationType aType) const override;
+
+ protected:
+  // Accessible
+  virtual ENameValueFlag NativeName(nsString& aName) const override;
+
+  // HTMLGroupboxAccessible
+  nsIContent* GetLegend() const;
+};
+
+/**
+ * Accessible for HTML legend element.
+ */
+class HTMLLegendAccessible : public HyperTextAccessibleWrap {
+ public:
+  HTMLLegendAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // Accessible
+  virtual Relation RelationByType(RelationType aType) const override;
+};
+
+/**
+ * Accessible for HTML5 figure element.
+ */
+class HTMLFigureAccessible : public HyperTextAccessibleWrap {
+ public:
+  HTMLFigureAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // Accessible
+  virtual Relation RelationByType(RelationType aType) const override;
+
+ protected:
+  // Accessible
+  virtual ENameValueFlag NativeName(nsString& aName) const override;
+
+  // HTMLLegendAccessible
+  nsIContent* Caption() const;
+};
+
+/**
+ * Accessible for HTML5 figcaption element.
+ */
+class HTMLFigcaptionAccessible : public HyperTextAccessibleWrap {
+ public:
+  HTMLFigcaptionAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // Accessible
+  virtual Relation RelationByType(RelationType aType) const override;
+};
+
+/**
+ * Used for HTML form element.
+ */
+class HTMLFormAccessible : public HyperTextAccessibleWrap {
+ public:
+  HTMLFormAccessible(nsIContent* aContent, DocAccessible* aDoc)
+      : HyperTextAccessibleWrap(aContent, aDoc) {}
+
+  NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLFormAccessible,
+                                       HyperTextAccessibleWrap)
+
+  // Accessible
+  virtual nsAtom* LandmarkRole() const override;
+  virtual a11y::role NativeRole() const override;
+
+ protected:
+  virtual ~HTMLFormAccessible() = default;
+};
+
+/**
+ * Accessible for HTML progress element.
+ */
+
+class HTMLProgressAccessible : public LeafAccessible {
+ public:
+  HTMLProgressAccessible(nsIContent* aContent, DocAccessible* aDoc)
+      : LeafAccessible(aContent, aDoc) {
+    // Ignore 'ValueChange' DOM event in lieu of @value attribute change
+    // notifications.
+    mStateFlags |= eHasNumericValue | eIgnoreDOMUIEvent;
+    mType = eProgressType;
+  }
+
+  // Accessible
+  virtual void Value(nsString& aValue) const override;
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual uint64_t NativeState() const override;
+
+  // Value
+  virtual double MaxValue() const override;
+  virtual double MinValue() const override;
+  virtual double CurValue() const override;
+  virtual double Step() const override;
+  virtual bool SetCurValue(double aValue) override;
+
+  // Widgets
+  virtual bool IsWidget() const override;
+
+ protected:
+  virtual ~HTMLProgressAccessible() {}
+};
+
+/**
+ * Accessible for HTML date/time inputs.
+ */
+template <a11y::role R>
+class HTMLDateTimeAccessible : public AccessibleWrap {
+ public:
+  HTMLDateTimeAccessible(nsIContent* aContent, DocAccessible* aDoc)
+      : AccessibleWrap(aContent, aDoc) {}
+
+  NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLDateTimeAccessible, AccessibleWrap)
+
+  // Accessible
+  virtual mozilla::a11y::role NativeRole() const override { return R; }
+  virtual already_AddRefed<nsIPersistentProperties> NativeAttributes()
+      override {
+    nsCOMPtr<nsIPersistentProperties> attributes =
+        AccessibleWrap::NativeAttributes();
+    // Unfortunately, an nsStaticAtom can't be passed as a
+    // template argument, so fetch the type from the DOM.
+    nsAutoString type;
+    if (mContent->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::type,
+                                       type)) {
+      nsAccUtils::SetAccAttr(attributes, nsGkAtoms::textInputType, type);
+    }
+    return attributes.forget();
+  }
+
+  // Widgets
+  virtual bool IsWidget() const override { return true; }
+
+ protected:
+  virtual ~HTMLDateTimeAccessible() {}
+};
+
+}  // namespace a11y
+}  // namespace mozilla
+
+#endif