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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/. */
#include "ia2AccessibleRelation.h"
#include "Relation.h"
#include "nsID.h"
#include "AccessibleRelation_i.c"
using namespace mozilla::a11y;
ia2AccessibleRelation::ia2AccessibleRelation(RelationType aType, Relation* aRel)
: mType(aType) {
Accessible* target = nullptr;
while ((target = aRel->Next())) {
mTargets.AppendElement(
already_AddRefed(MsaaAccessible::NativeAccessible(target)));
}
}
// IUnknown
IMPL_IUNKNOWN_QUERY_HEAD(ia2AccessibleRelation)
IMPL_IUNKNOWN_QUERY_IFACE(IAccessibleRelation)
IMPL_IUNKNOWN_QUERY_IFACE(IUnknown)
IMPL_IUNKNOWN_QUERY_TAIL
// IAccessibleRelation
STDMETHODIMP
ia2AccessibleRelation::get_relationType(BSTR* aRelationType) {
if (!aRelationType) return E_INVALIDARG;
*aRelationType = nullptr;
#define RELATIONTYPE(geckoType, geckoTypeName, atkType, msaaType, ia2Type) \
case RelationType::geckoType: \
*aRelationType = ::SysAllocString(ia2Type); \
break;
switch (mType) {
#include "RelationTypeMap.h"
}
return *aRelationType ? S_OK : E_OUTOFMEMORY;
}
STDMETHODIMP
ia2AccessibleRelation::get_localizedRelationType(BSTR* aLocalizedRelationType) {
if (!aLocalizedRelationType) return E_INVALIDARG;
*aLocalizedRelationType = nullptr;
return E_NOTIMPL;
}
STDMETHODIMP
ia2AccessibleRelation::get_nTargets(long* aNTargets) {
if (!aNTargets) return E_INVALIDARG;
*aNTargets = mTargets.Length();
return S_OK;
}
STDMETHODIMP
ia2AccessibleRelation::get_target(long aTargetIndex, IUnknown** aTarget) {
if (aTargetIndex < 0 || (uint32_t)aTargetIndex >= mTargets.Length() ||
!aTarget)
return E_INVALIDARG;
RefPtr<IUnknown> target = mTargets[aTargetIndex];
target.forget(aTarget);
return S_OK;
}
STDMETHODIMP
ia2AccessibleRelation::get_targets(long aMaxTargets, IUnknown** aTargets,
long* aNTargets) {
if (!aNTargets || !aTargets) return E_INVALIDARG;
*aNTargets = 0;
long maxTargets = mTargets.Length();
if (maxTargets > aMaxTargets) maxTargets = aMaxTargets;
for (long idx = 0; idx < maxTargets; idx++) get_target(idx, aTargets + idx);
*aNTargets = maxTargets;
return S_OK;
}
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