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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 "Accessible-inl.h"
#include "IUnknownImpl.h"
#include "mozilla/FloatingPoint.h"
using namespace mozilla::a11y;
// IUnknown
STDMETHODIMP
ia2AccessibleValue::QueryInterface(REFIID iid, void** ppv)
{
if (!ppv)
return E_INVALIDARG;
*ppv = nullptr;
if (IID_IAccessibleValue == iid) {
AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
if (valueAcc->HasNumericValue()) {
*ppv = static_cast<IAccessibleValue*>(this);
valueAcc->AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
return E_NOINTERFACE;
}
// IAccessibleValue
STDMETHODIMP
ia2AccessibleValue::get_currentValue(VARIANT* aCurrentValue)
{
A11Y_TRYBLOCK_BEGIN
if (!aCurrentValue)
return E_INVALIDARG;
VariantInit(aCurrentValue);
AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
double currentValue;
MOZ_ASSERT(!valueAcc->IsProxy());
if (valueAcc->IsDefunct()) {
return CO_E_OBJNOTCONNECTED;
}
currentValue = valueAcc->CurValue();
if (IsNaN(currentValue))
return S_FALSE;
aCurrentValue->vt = VT_R8;
aCurrentValue->dblVal = currentValue;
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ia2AccessibleValue::setCurrentValue(VARIANT aValue)
{
A11Y_TRYBLOCK_BEGIN
if (aValue.vt != VT_R8)
return E_INVALIDARG;
AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
MOZ_ASSERT(!valueAcc->IsProxy());
if (valueAcc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
return valueAcc->SetCurValue(aValue.dblVal) ? S_OK : E_FAIL;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ia2AccessibleValue::get_maximumValue(VARIANT* aMaximumValue)
{
A11Y_TRYBLOCK_BEGIN
if (!aMaximumValue)
return E_INVALIDARG;
VariantInit(aMaximumValue);
AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
double maximumValue;
MOZ_ASSERT(!valueAcc->IsProxy());
if (valueAcc->IsDefunct()) {
return CO_E_OBJNOTCONNECTED;
}
maximumValue = valueAcc->MaxValue();
if (IsNaN(maximumValue))
return S_FALSE;
aMaximumValue->vt = VT_R8;
aMaximumValue->dblVal = maximumValue;
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ia2AccessibleValue::get_minimumValue(VARIANT* aMinimumValue)
{
A11Y_TRYBLOCK_BEGIN
if (!aMinimumValue)
return E_INVALIDARG;
VariantInit(aMinimumValue);
AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
double minimumValue;
MOZ_ASSERT(!valueAcc->IsProxy());
if (valueAcc->IsDefunct()) {
return CO_E_OBJNOTCONNECTED;
}
minimumValue = valueAcc->MinValue();
if (IsNaN(minimumValue))
return S_FALSE;
aMinimumValue->vt = VT_R8;
aMinimumValue->dblVal = minimumValue;
return S_OK;
A11Y_TRYBLOCK_END
}
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