michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsAccessibleRelation.h"
michael@0: 
michael@0: #include "Relation.h"
michael@0: #include "Accessible.h"
michael@0: 
michael@0: #include "nsArrayUtils.h"
michael@0: #include "nsComponentManagerUtils.h"
michael@0: 
michael@0: using namespace mozilla::a11y;
michael@0: 
michael@0: nsAccessibleRelation::nsAccessibleRelation(uint32_t aType,
michael@0:                                            Relation* aRel) :
michael@0:   mType(aType)
michael@0: {
michael@0:   mTargets = do_CreateInstance(NS_ARRAY_CONTRACTID);
michael@0:   nsIAccessible* targetAcc = nullptr;
michael@0:   while ((targetAcc = aRel->Next()))
michael@0:     mTargets->AppendElement(targetAcc, false);
michael@0: }
michael@0: 
michael@0: // nsISupports
michael@0: NS_IMPL_ISUPPORTS(nsAccessibleRelation, nsIAccessibleRelation)
michael@0: 
michael@0: // nsIAccessibleRelation
michael@0: NS_IMETHODIMP
michael@0: nsAccessibleRelation::GetRelationType(uint32_t *aType)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aType);
michael@0:   *aType = mType;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsAccessibleRelation::GetTargetsCount(uint32_t *aCount)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aCount);
michael@0:   *aCount = 0;
michael@0:   return mTargets->GetLength(aCount);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsAccessibleRelation::GetTarget(uint32_t aIndex, nsIAccessible **aTarget)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aTarget);
michael@0:   nsresult rv = NS_OK;
michael@0:   nsCOMPtr<nsIAccessible> target = do_QueryElementAt(mTargets, aIndex, &rv);
michael@0:   target.forget(aTarget);
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsAccessibleRelation::GetTargets(nsIArray **aTargets)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aTargets);
michael@0:   NS_ADDREF(*aTargets = mTargets);
michael@0:   return NS_OK;
michael@0: }