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diff --git a/accessible/xul/XULFormControlAccessible.h b/accessible/xul/XULFormControlAccessible.h
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+++ b/accessible/xul/XULFormControlAccessible.h
@@ -0,0 +1,186 @@
+/* -*- 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_XULFormControlAccessible_H_
+#define MOZILLA_A11Y_XULFormControlAccessible_H_
+
+// NOTE: alphabetically ordered
+#include "AccessibleWrap.h"
+#include "FormControlAccessible.h"
+#include "HyperTextAccessible.h"
+#include "XULSelectControlAccessible.h"
+
+namespace mozilla {
+namespace a11y {
+
+/**
+ * Used for XUL button.
+ *
+ * @note  Don't inherit from LeafAccessible - it doesn't allow children
+ *         and a button can have a dropmarker child.
+ */
+class XULButtonAccessible : public AccessibleWrap {
+ public:
+  enum { eAction_Click = 0 };
+  XULButtonAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // nsISupports
+  NS_INLINE_DECL_REFCOUNTING_INHERITED(XULButtonAccessible, AccessibleWrap)
+
+  // LocalAccessible
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual uint64_t NativeState() const override;
+  virtual bool AttributeChangesState(nsAtom* aAttribute) override;
+
+  // ActionAccessible
+  virtual bool HasPrimaryAction() const override;
+  virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override;
+
+  // Widgets
+  virtual bool IsWidget() const override;
+  virtual bool IsActiveWidget() const override;
+  virtual bool AreItemsOperable() const override;
+
+  virtual bool IsAcceptableChild(nsIContent* aEl) const override;
+
+ protected:
+  virtual ~XULButtonAccessible();
+
+  // XULButtonAccessible
+  bool ContainsMenu() const;
+};
+
+/**
+ * Used for XUL dropmarker element.
+ */
+class XULDropmarkerAccessible : public LeafAccessible {
+ public:
+  enum { eAction_Click = 0 };
+  XULDropmarkerAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // LocalAccessible
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual uint64_t NativeState() const override;
+
+  // ActionAccessible
+  virtual bool HasPrimaryAction() const override;
+  virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override;
+  virtual bool DoAction(uint8_t aIndex) const override;
+
+ private:
+  bool DropmarkerOpen(bool aToggleOpen) const;
+};
+
+/**
+ * Used for XUL groupbox element.
+ */
+class XULGroupboxAccessible final : public AccessibleWrap {
+ public:
+  XULGroupboxAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // LocalAccessible
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual Relation RelationByType(RelationType aType) const override;
+
+ protected:
+  // LocalAccessible
+  virtual ENameValueFlag NativeName(nsString& aName) const override;
+};
+
+/**
+ * Used for XUL radio element (radio button).
+ */
+class XULRadioButtonAccessible : public RadioButtonAccessible {
+ public:
+  XULRadioButtonAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // LocalAccessible
+  virtual uint64_t NativeState() const override;
+  virtual uint64_t NativeInteractiveState() const override;
+
+  // Widgets
+  virtual LocalAccessible* ContainerWidget() const override;
+};
+
+/**
+ * Used for XUL radiogroup element.
+ */
+class XULRadioGroupAccessible : public XULSelectControlAccessible {
+ public:
+  XULRadioGroupAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // LocalAccessible
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual uint64_t NativeInteractiveState() const override;
+
+  // Widgets
+  virtual bool IsWidget() const override;
+  virtual bool IsActiveWidget() const override;
+  virtual bool AreItemsOperable() const override;
+  virtual LocalAccessible* CurrentItem() const override;
+  virtual void SetCurrentItem(const LocalAccessible* aItem) override;
+};
+
+/**
+ * Used for XUL statusbar element.
+ */
+class XULStatusBarAccessible : public AccessibleWrap {
+ public:
+  XULStatusBarAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // LocalAccessible
+  virtual mozilla::a11y::role NativeRole() const override;
+};
+
+/**
+ * Used for XUL toolbarbutton element.
+ */
+class XULToolbarButtonAccessible : public XULButtonAccessible {
+ public:
+  XULToolbarButtonAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // nsXULToolbarButtonAccessible
+  static bool IsSeparator(LocalAccessible* aAccessible);
+
+  // Widgets
+  virtual bool IsAcceptableChild(nsIContent* aEl) const override;
+
+ protected:
+  // LocalAccessible
+  virtual void GetPositionAndSetSize(int32_t* aPosInSet,
+                                     int32_t* aSetSize) override;
+};
+
+/**
+ * Used for XUL toolbar element.
+ */
+class XULToolbarAccessible : public AccessibleWrap {
+ public:
+  XULToolbarAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // LocalAccessible
+  virtual mozilla::a11y::role NativeRole() const override;
+
+ protected:
+  // LocalAccessible
+  virtual ENameValueFlag NativeName(nsString& aName) const override;
+};
+
+/**
+ * Used for XUL toolbarseparator element.
+ */
+class XULToolbarSeparatorAccessible : public LeafAccessible {
+ public:
+  XULToolbarSeparatorAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // LocalAccessible
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual uint64_t NativeState() const override;
+};
+
+}  // namespace a11y
+}  // namespace mozilla
+
+#endif