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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 "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 (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;
AccessibleWrap* valueAcc = LocalAcc();
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 (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 (IsNaN(minimumValue)) return S_FALSE;
aMinimumValue->vt = VT_R8;
aMinimumValue->dblVal = minimumValue;
return S_OK;
}
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