/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* 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/. */

#include "xpcAccessibleHyperLink.h"

#include "LocalAccessible-inl.h"
#include "mozilla/StaticPrefs_accessibility.h"
#include "nsNetUtil.h"
#include "xpcAccessibleDocument.h"

using namespace mozilla::a11y;

NS_IMETHODIMP
xpcAccessibleHyperLink::GetStartIndex(int32_t* aStartIndex) {
  NS_ENSURE_ARG_POINTER(aStartIndex);
  *aStartIndex = 0;

  if (!Intl()) return NS_ERROR_FAILURE;

#if defined(XP_WIN)
  if (Intl()->IsRemote() &&
      !StaticPrefs::accessibility_cache_enabled_AtStartup()) {
    return NS_ERROR_NOT_IMPLEMENTED;
  }
#endif

  *aStartIndex = static_cast<int32_t>(Intl()->StartOffset());
  return NS_OK;
}

NS_IMETHODIMP
xpcAccessibleHyperLink::GetEndIndex(int32_t* aEndIndex) {
  NS_ENSURE_ARG_POINTER(aEndIndex);
  *aEndIndex = 0;

  if (!Intl()) return NS_ERROR_FAILURE;

#if defined(XP_WIN)
  if (Intl()->IsRemote() &&
      !StaticPrefs::accessibility_cache_enabled_AtStartup()) {
    return NS_ERROR_NOT_IMPLEMENTED;
  }
#endif

  *aEndIndex = static_cast<int32_t>(Intl()->EndOffset());
  return NS_OK;
}

NS_IMETHODIMP
xpcAccessibleHyperLink::GetAnchorCount(int32_t* aAnchorCount) {
  NS_ENSURE_ARG_POINTER(aAnchorCount);
  *aAnchorCount = 0;

  if (!Intl()) return NS_ERROR_FAILURE;

  if (Intl()->IsLocal()) {
    *aAnchorCount = Intl()->AsLocal()->AnchorCount();
  } else {
#if defined(XP_WIN)
    return NS_ERROR_NOT_IMPLEMENTED;
#else
    bool isCountValid = false;
    uint32_t anchorCount = Intl()->AsRemote()->AnchorCount(&isCountValid);
    if (!isCountValid) return NS_ERROR_FAILURE;

    *aAnchorCount = anchorCount;
#endif
  }

  return NS_OK;
}

NS_IMETHODIMP
xpcAccessibleHyperLink::GetURI(int32_t aIndex, nsIURI** aURI) {
  NS_ENSURE_ARG_POINTER(aURI);

  if (!Intl()) return NS_ERROR_FAILURE;

  if (aIndex < 0) return NS_ERROR_INVALID_ARG;

  if (Intl()->IsLocal()) {
    if (aIndex >= static_cast<int32_t>(Intl()->AsLocal()->AnchorCount())) {
      return NS_ERROR_INVALID_ARG;
    }

    RefPtr<nsIURI>(Intl()->AsLocal()->AnchorURIAt(aIndex)).forget(aURI);
  } else {
#if defined(XP_WIN)
    return NS_ERROR_NOT_IMPLEMENTED;
#else
    nsCString spec;
    bool isURIValid = false;
    Intl()->AsRemote()->AnchorURIAt(aIndex, spec, &isURIValid);
    if (!isURIValid) return NS_ERROR_FAILURE;

    nsCOMPtr<nsIURI> uri;
    nsresult rv = NS_NewURI(getter_AddRefs(uri), spec);
    NS_ENSURE_SUCCESS(rv, rv);

    uri.forget(aURI);
#endif
  }

  return NS_OK;
}

NS_IMETHODIMP
xpcAccessibleHyperLink::GetAnchor(int32_t aIndex, nsIAccessible** aAccessible) {
  NS_ENSURE_ARG_POINTER(aAccessible);
  *aAccessible = nullptr;

  if (!Intl()) return NS_ERROR_FAILURE;

  if (aIndex < 0) return NS_ERROR_INVALID_ARG;

  if (Intl()->IsLocal()) {
    if (aIndex >= static_cast<int32_t>(Intl()->AsLocal()->AnchorCount())) {
      return NS_ERROR_INVALID_ARG;
    }

    NS_IF_ADDREF(*aAccessible = ToXPC(Intl()->AsLocal()->AnchorAt(aIndex)));
  } else {
#if defined(XP_WIN)
    return NS_ERROR_NOT_IMPLEMENTED;
#else
    NS_IF_ADDREF(*aAccessible = ToXPC(Intl()->AsRemote()->AnchorAt(aIndex)));
#endif
  }

  return NS_OK;
}

NS_IMETHODIMP
xpcAccessibleHyperLink::GetValid(bool* aValid) {
  NS_ENSURE_ARG_POINTER(aValid);
  *aValid = false;

  if (!Intl()) return NS_ERROR_FAILURE;

  if (Intl()->IsLocal()) {
    *aValid = Intl()->AsLocal()->IsLinkValid();
  } else {
#if defined(XP_WIN)
    return NS_ERROR_NOT_IMPLEMENTED;
#else
    *aValid = Intl()->AsRemote()->IsLinkValid();
#endif
  }

  return NS_OK;
}