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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=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 _NS_ACCESSIBLE_RELATION_WRAP_H
#define _NS_ACCESSIBLE_RELATION_WRAP_H

#include "Accessible.h"
#include "IUnknownImpl.h"

#include <utility>
#include "nsTArray.h"

#include "AccessibleRelation.h"

namespace mozilla {
namespace a11y {

class ia2AccessibleRelation final : public IAccessibleRelation
{
public:
  ia2AccessibleRelation(RelationType aType, Relation* aRel);

  ia2AccessibleRelation(RelationType aType,
                        nsTArray<RefPtr<Accessible>>&& aTargets) :
    mType(aType), mTargets(Move(aTargets)) {}

  // IUnknown
  DECL_IUNKNOWN

  // IAccessibleRelation
  virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_relationType(
      /* [retval][out] */ BSTR *relationType);

  virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_localizedRelationType(
      /* [retval][out] */ BSTR *localizedRelationType);

  virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_nTargets(
      /* [retval][out] */ long *nTargets);

  virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_target(
      /* [in] */ long targetIndex,
      /* [retval][out] */ IUnknown **target);

  virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_targets(
      /* [in] */ long maxTargets,
      /* [length_is][size_is][out] */ IUnknown **target,
      /* [retval][out] */ long *nTargets);

  inline bool HasTargets() const
    { return mTargets.Length(); }

private:
  ia2AccessibleRelation();
  ia2AccessibleRelation(const ia2AccessibleRelation&);
  ia2AccessibleRelation& operator = (const ia2AccessibleRelation&);

  RelationType mType;
  nsTArray<RefPtr<Accessible> > mTargets;
};


/**
 * Gecko to IAccessible2 relation types map.
 */

const WCHAR *const IA2_RELATION_NULL = L"";

#define RELATIONTYPE(geckoType, name, atkType, msaaType, ia2Type) \
  std::pair<RelationType, const WCHAR *const>(RelationType::geckoType, ia2Type),

static const std::pair<RelationType, const WCHAR *const> sRelationTypePairs[] = {
#include "RelationTypeMap.h"
};

#undef RELATIONTYPE

} // namespace a11y
} // namespace mozilla

#endif