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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(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)
{
A11Y_TRYBLOCK_BEGIN
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;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ia2AccessibleRelation::get_localizedRelationType(BSTR *aLocalizedRelationType)
{
A11Y_TRYBLOCK_BEGIN
if (!aLocalizedRelationType)
return E_INVALIDARG;
*aLocalizedRelationType = nullptr;
return E_NOTIMPL;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ia2AccessibleRelation::get_nTargets(long *aNTargets)
{
A11Y_TRYBLOCK_BEGIN
if (!aNTargets)
return E_INVALIDARG;
*aNTargets = mTargets.Length();
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ia2AccessibleRelation::get_target(long aTargetIndex, IUnknown **aTarget)
{
A11Y_TRYBLOCK_BEGIN
if (aTargetIndex < 0 || (uint32_t)aTargetIndex >= mTargets.Length() || !aTarget)
return E_INVALIDARG;
AccessibleWrap* target =
static_cast<AccessibleWrap*>(mTargets[aTargetIndex].get());
*aTarget = static_cast<IAccessible*>(target);
(*aTarget)->AddRef();
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ia2AccessibleRelation::get_targets(long aMaxTargets, IUnknown **aTargets,
long *aNTargets)
{
A11Y_TRYBLOCK_BEGIN
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;
A11Y_TRYBLOCK_END
}
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