HTMLLinkAccessible.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_HTMLLinkAccessible_h__

#define mozilla_a11y_HTMLLinkAccessible_h__

#include "HyperTextAccessible.h"

namespace mozilla {

namespace a11y {

class HTMLLinkAccessible : public HyperTextAccessible {

 public:

  HTMLLinkAccessible(nsIContent* aContent, DocAccessible* aDoc);

  NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLLinkAccessible, HyperTextAccessible)

  // LocalAccessible

  virtual void Value(nsString& aValue) const override;

  virtual a11y::role NativeRole() const override;

  virtual uint64_t NativeState() const override;

  virtual uint64_t NativeLinkState() const override;

  virtual uint64_t NativeInteractiveState() const override;

  // ActionAccessible

  virtual bool HasPrimaryAction() const override;

  virtual void ActionNameAt(uint8_t aIndex, nsAString& aName) override;

  // HyperLinkAccessible

  virtual bool IsLink() const override;

/**

   * Returns true if the link has href attribute.

*/

  bool IsLinked() const;

 protected:

  virtual ~HTMLLinkAccessible() {}

  virtual bool AttributeChangesState(nsAtom* aAttribute) override;

  virtual void DOMAttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,

                                   int32_t aModType,

                                   const nsAttrValue* aOldValue,

                                   uint64_t aOldState) override;

  virtual ENameValueFlag NativeName(nsString& aName) const override;

  enum { eAction_Jump = 0 };

};

inline HTMLLinkAccessible* LocalAccessible::AsHTMLLink() {

  return IsHTMLLink() ? static_cast<HTMLLinkAccessible*>(this) : nullptr;

}  // namespace a11y

}  // namespace mozilla

#endif