diff -r 000000000000 -r 6474c204b198 accessible/src/xul/XULSliderAccessible.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/src/xul/XULSliderAccessible.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,78 @@
+/* -*- 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_XULSliderAccessible_h__
+#define mozilla_a11y_XULSliderAccessible_h__
+
+#include "AccessibleWrap.h"
+
+#include "nsIDOMElement.h"
+
+namespace mozilla {
+namespace a11y {
+
+/**
+ * Used for XUL slider and scale elements.
+ */
+class XULSliderAccessible : public AccessibleWrap
+{
+public:
+  XULSliderAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // nsIAccessible
+  NS_IMETHOD GetActionName(uint8_t aIndex, nsAString& aName);
+  NS_IMETHOD DoAction(uint8_t aIndex);
+
+  // Accessible
+  virtual void Value(nsString& aValue);
+  virtual a11y::role NativeRole();
+  virtual uint64_t NativeInteractiveState() const;
+  virtual bool NativelyUnavailable() const;
+  virtual bool CanHaveAnonChildren();
+
+  // Value
+  virtual double MaxValue() const MOZ_OVERRIDE;
+  virtual double MinValue() const MOZ_OVERRIDE;
+  virtual double CurValue() const MOZ_OVERRIDE;
+  virtual double Step() const MOZ_OVERRIDE;
+  virtual bool SetCurValue(double aValue) MOZ_OVERRIDE;
+
+  // ActionAccessible
+  virtual uint8_t ActionCount();
+
+protected:
+  /**
+   * Return anonymous slider element.
+   */
+  nsIContent* GetSliderElement() const;
+
+  nsresult GetSliderAttr(nsIAtom *aName, nsAString& aValue) const;
+  nsresult SetSliderAttr(nsIAtom *aName, const nsAString& aValue);
+
+  double GetSliderAttr(nsIAtom *aName) const;
+  bool SetSliderAttr(nsIAtom *aName, double aValue);
+
+private:
+  mutable nsCOMPtr<nsIContent> mSliderNode;
+};
+
+
+/**
+ * Used for slider's thumb element.
+ */
+class XULThumbAccessible : public AccessibleWrap
+{
+public:
+  XULThumbAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // Accessible
+  virtual a11y::role NativeRole();
+};
+
+} // namespace a11y
+} // namespace mozilla
+
+#endif
+