/* 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 "MsaaAccessible.h"
#include "IUnknownImpl.h"

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

#include "mozilla/a11y/RelationType.h"
#include "mozilla/a11y/Accessible.h"
#include "AccessibleRelation.h"

namespace mozilla {
namespace a11y {

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

  // 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<IUnknown>> 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.inc"
};

#undef RELATIONTYPE

}  // namespace a11y
}  // namespace mozilla

#endif
