michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:expandtab:shiftwidth=2:tabstop=2:
michael@0:  */
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 "ia2AccessibleRelation.h"
michael@0: 
michael@0: #include "Relation.h"
michael@0: #include "nsIAccessibleRelation.h"
michael@0: #include "nsID.h"
michael@0: 
michael@0: #include "AccessibleRelation_i.c"
michael@0: 
michael@0: using namespace mozilla::a11y;
michael@0: 
michael@0: ia2AccessibleRelation::ia2AccessibleRelation(RelationType aType, Relation* aRel) :
michael@0:   mType(aType)
michael@0: {
michael@0:   Accessible* target = nullptr;
michael@0:   while ((target = aRel->Next()))
michael@0:     mTargets.AppendElement(target);
michael@0: }
michael@0: 
michael@0: // IUnknown
michael@0: 
michael@0: IMPL_IUNKNOWN_QUERY_HEAD(ia2AccessibleRelation)
michael@0:   IMPL_IUNKNOWN_QUERY_IFACE(IAccessibleRelation)
michael@0:   IMPL_IUNKNOWN_QUERY_IFACE(IUnknown)
michael@0: IMPL_IUNKNOWN_QUERY_TAIL
michael@0: 
michael@0: // IAccessibleRelation
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleRelation::get_relationType(BSTR* aRelationType)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aRelationType)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aRelationType = nullptr;
michael@0: 
michael@0: #define RELATIONTYPE(geckoType, geckoTypeName, atkType, msaaType, ia2Type) \
michael@0:   case RelationType::geckoType: \
michael@0:     *aRelationType = ::SysAllocString(ia2Type); \
michael@0:     break;
michael@0: 
michael@0:   switch (mType) {
michael@0: #include "RelationTypeMap.h"
michael@0:   }
michael@0: 
michael@0:   return *aRelationType ? S_OK : E_OUTOFMEMORY;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleRelation::get_localizedRelationType(BSTR *aLocalizedRelationType)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aLocalizedRelationType)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aLocalizedRelationType = nullptr;
michael@0:   return E_NOTIMPL;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleRelation::get_nTargets(long *aNTargets)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:  if (!aNTargets)
michael@0:    return E_INVALIDARG;
michael@0: 
michael@0:  *aNTargets = mTargets.Length();
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleRelation::get_target(long aTargetIndex, IUnknown **aTarget)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (aTargetIndex < 0 || (uint32_t)aTargetIndex >= mTargets.Length() || !aTarget)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   AccessibleWrap* target =
michael@0:     static_cast<AccessibleWrap*>(mTargets[aTargetIndex].get());
michael@0:   *aTarget = static_cast<IAccessible*>(target);
michael@0:   (*aTarget)->AddRef();
michael@0: 
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }
michael@0: 
michael@0: STDMETHODIMP
michael@0: ia2AccessibleRelation::get_targets(long aMaxTargets, IUnknown **aTargets,
michael@0:                                    long *aNTargets)
michael@0: {
michael@0:   A11Y_TRYBLOCK_BEGIN
michael@0: 
michael@0:   if (!aNTargets || !aTargets)
michael@0:     return E_INVALIDARG;
michael@0: 
michael@0:   *aNTargets = 0;
michael@0:   long maxTargets = mTargets.Length();
michael@0:   if (maxTargets > aMaxTargets)
michael@0:     maxTargets = aMaxTargets;
michael@0: 
michael@0:   for (long idx = 0; idx < maxTargets; idx++)
michael@0:     get_target(idx, aTargets + idx);
michael@0: 
michael@0:   *aNTargets = maxTargets;
michael@0:   return S_OK;
michael@0: 
michael@0:   A11Y_TRYBLOCK_END
michael@0: }