gecko-dev/accessible/src/xul/nsXULSliderAccessible.h

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 * Contributor(s):
 *   Alexander Surkov <surkov.alexander@gmail.com> (original author)
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#ifndef _nsXULSliderAccessible_H_
#define _nsXULSliderAccessible_H_

#include "nsAccessibleWrap.h"

#include "nsIDOMElement.h"

/**
 * Used for XUL slider and scale elements.
 */
class nsXULSliderAccessible : public nsAccessibleWrap
{
public:
  nsXULSliderAccessible(nsIContent *aContent, nsIWeakReference *aShell);

  // nsISupports
  NS_DECL_ISUPPORTS_INHERITED

  // nsIAccessible
  NS_IMETHOD GetValue(nsAString& aValue);
  NS_IMETHOD GetActionName(PRUint8 aIndex, nsAString& aName);
  NS_IMETHOD DoAction(PRUint8 aIndex);

  // nsIAccessibleValue
  NS_DECL_NSIACCESSIBLEVALUE

  // nsAccessible
  virtual mozilla::a11y::role NativeRole();
  virtual PRUint64 NativeState();
  virtual bool GetAllowsAnonChildAccessibles();

  // ActionAccessible
  virtual PRUint8 ActionCount();

protected:
  already_AddRefed<nsIContent> GetSliderNode();

  nsresult GetSliderAttr(nsIAtom *aName, nsAString& aValue);
  nsresult SetSliderAttr(nsIAtom *aName, const nsAString& aValue);

  nsresult GetSliderAttr(nsIAtom *aName, double *aValue);
  nsresult SetSliderAttr(nsIAtom *aName, double aValue);

private:
  nsCOMPtr<nsIDOMElement> mSliderNode;
};


/**
 * Used for slider's thumb element.
 */
class nsXULThumbAccessible : public nsAccessibleWrap
{
public:
  nsXULThumbAccessible(nsIContent *aContent, nsIWeakReference *aShell);

  // nsAccessible
  virtual mozilla::a11y::role NativeRole();
};

#endif