accessible/html/HTMLLinkAccessible.h
author Ehsan Akhgari <ehsan@mozilla.com>
Wed, 17 Sep 2014 18:31:26 -0400
changeset 230454 40efa924899c1612c41c0aafc6f2ce97547b80db
parent 230179 627909e0506ea91a66b8fe9ced863db7083878d7
child 249452 539768eaa7baf9369362cb30806e5344b8bb8aa7
permissions -rw-r--r--
Bug 1067340 follow-up: null check the inner window r=bustage Landed on a CLOSED TREE

/* -*- 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_HTMLLinkAccessible_h__
#define mozilla_a11y_HTMLLinkAccessible_h__

#include "HyperTextAccessibleWrap.h"

namespace mozilla {
namespace a11y {

class HTMLLinkAccessible : public HyperTextAccessibleWrap
{
public:
  HTMLLinkAccessible(nsIContent* aContent, DocAccessible* aDoc);

  NS_DECL_ISUPPORTS_INHERITED

  // Accessible
  virtual void Value(nsString& aValue);
  virtual a11y::role NativeRole() MOZ_OVERRIDE;
  virtual uint64_t NativeState() MOZ_OVERRIDE;
  virtual uint64_t NativeLinkState() const MOZ_OVERRIDE;
  virtual uint64_t NativeInteractiveState() const MOZ_OVERRIDE;

  // ActionAccessible
  virtual uint8_t ActionCount() MOZ_OVERRIDE;
  virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) MOZ_OVERRIDE;
  virtual bool DoAction(uint8_t aIndex) MOZ_OVERRIDE;

  // HyperLinkAccessible
  virtual bool IsLink();
  virtual already_AddRefed<nsIURI> AnchorURIAt(uint32_t aAnchorIndex);

protected:
  virtual ~HTMLLinkAccessible() {}

  enum { eAction_Jump = 0 };

  /**
   * Returns true if the link has href attribute.
   */
  bool IsLinked() const;
};

} // namespace a11y
} // namespace mozilla

#endif