1 files changed, 125 insertions, 0 deletions
diff --git a/accessible/windows/ia2/ia2AccessibleValue.cpp b/accessible/windows/ia2/ia2AccessibleValue.cpp
new file mode 100644
index 0000000000..b0b9a729e3
--- /dev/null
+++ b/accessible/windows/ia2/ia2AccessibleValue.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 "ia2AccessibleValue.h"
+
+#include "AccessibleValue_i.c"
+
+#include "AccessibleWrap.h"
+#include "LocalAccessible-inl.h"
+#include "IUnknownImpl.h"
+
+#include "mozilla/FloatingPoint.h"
+
+using namespace mozilla::a11y;
+
+AccessibleWrap* ia2AccessibleValue::LocalAcc() {
+  return static_cast<MsaaAccessible*>(this)->LocalAcc();
+}
+
+Accessible* ia2AccessibleValue::Acc() {
+  return static_cast<MsaaAccessible*>(this)->Acc();
+}
+
+// IUnknown
+
+STDMETHODIMP
+ia2AccessibleValue::QueryInterface(REFIID iid, void** ppv) {
+  if (!ppv) return E_INVALIDARG;
+
+  *ppv = nullptr;
+
+  if (IID_IAccessibleValue == iid) {
+    Accessible* valueAcc = Acc();
+    if (valueAcc && valueAcc->HasNumericValue()) {
+      RefPtr<IAccessibleValue> result = this;
+      result.forget(ppv);
+      return S_OK;
+    }
+
+    return E_NOINTERFACE;
+  }
+
+  return E_NOINTERFACE;
+}
+
+// IAccessibleValue
+
+STDMETHODIMP
+ia2AccessibleValue::get_currentValue(VARIANT* aCurrentValue) {
+  if (!aCurrentValue) return E_INVALIDARG;
+
+  VariantInit(aCurrentValue);
+
+  Accessible* valueAcc = Acc();
+  if (!valueAcc) {
+    return CO_E_OBJNOTCONNECTED;
+  }
+  double currentValue;
+
+  currentValue = valueAcc->CurValue();
+
+  if (std::isnan(currentValue)) return S_FALSE;
+
+  aCurrentValue->vt = VT_R8;
+  aCurrentValue->dblVal = currentValue;
+  return S_OK;
+}
+
+STDMETHODIMP
+ia2AccessibleValue::setCurrentValue(VARIANT aValue) {
+  if (aValue.vt != VT_R8) return E_INVALIDARG;
+
+  Accessible* valueAcc = Acc();
+  if (!valueAcc) {
+    return CO_E_OBJNOTCONNECTED;
+  }
+
+  return valueAcc->SetCurValue(aValue.dblVal) ? S_OK : E_FAIL;
+}
+
+STDMETHODIMP
+ia2AccessibleValue::get_maximumValue(VARIANT* aMaximumValue) {
+  if (!aMaximumValue) return E_INVALIDARG;
+
+  VariantInit(aMaximumValue);
+
+  Accessible* valueAcc = Acc();
+  if (!valueAcc) {
+    return CO_E_OBJNOTCONNECTED;
+  }
+  double maximumValue;
+
+  maximumValue = valueAcc->MaxValue();
+
+  if (std::isnan(maximumValue)) return S_FALSE;
+
+  aMaximumValue->vt = VT_R8;
+  aMaximumValue->dblVal = maximumValue;
+  return S_OK;
+}
+
+STDMETHODIMP
+ia2AccessibleValue::get_minimumValue(VARIANT* aMinimumValue) {
+  if (!aMinimumValue) return E_INVALIDARG;
+
+  VariantInit(aMinimumValue);
+
+  Accessible* valueAcc = Acc();
+  if (!valueAcc) {
+    return CO_E_OBJNOTCONNECTED;
+  }
+  double minimumValue;
+
+  minimumValue = valueAcc->MinValue();
+
+  if (std::isnan(minimumValue)) return S_FALSE;
+
+  aMinimumValue->vt = VT_R8;
+  aMinimumValue->dblVal = minimumValue;
+  return S_OK;
+}