1 files changed, 125 insertions, 0 deletions
diff --git a/accessible/windows/ia2/ia2AccessibleRelation.cpp b/accessible/windows/ia2/ia2AccessibleRelation.cpp
new file mode 100644
index 0000000000..cc6fd83c8a
--- /dev/null
+++ b/accessible/windows/ia2/ia2AccessibleRelation.cpp
@@ -0,0 +1,125 @@
+/* -*- 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
+}