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-rw-r--r--accessible/windows/ia2/ia2AccessibleRelation.cpp94
1 files changed, 94 insertions, 0 deletions
diff --git a/accessible/windows/ia2/ia2AccessibleRelation.cpp b/accessible/windows/ia2/ia2AccessibleRelation.cpp
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+++ b/accessible/windows/ia2/ia2AccessibleRelation.cpp
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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;
+}