1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/windows/ia2/ia2AccessibleValue.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,137 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:expandtab:shiftwidth=2:tabstop=2:
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#include "ia2AccessibleValue.h"
1.12 +
1.13 +#include "AccessibleValue_i.c"
1.14 +
1.15 +#include "AccessibleWrap.h"
1.16 +#include "Accessible-inl.h"
1.17 +#include "IUnknownImpl.h"
1.18 +
1.19 +#include "mozilla/FloatingPoint.h"
1.20 +
1.21 +using namespace mozilla::a11y;
1.22 +
1.23 +// IUnknown
1.24 +
1.25 +STDMETHODIMP
1.26 +ia2AccessibleValue::QueryInterface(REFIID iid, void** ppv)
1.27 +{
1.28 + if (!ppv)
1.29 + return E_INVALIDARG;
1.30 +
1.31 + *ppv = nullptr;
1.32 +
1.33 + if (IID_IAccessibleValue == iid) {
1.34 + AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
1.35 + if (valueAcc->HasNumericValue()) {
1.36 + *ppv = static_cast<IAccessibleValue*>(this);
1.37 + valueAcc->AddRef();
1.38 + return S_OK;
1.39 + }
1.40 +
1.41 + return E_NOINTERFACE;
1.42 + }
1.43 +
1.44 + return E_NOINTERFACE;
1.45 +}
1.46 +
1.47 +// IAccessibleValue
1.48 +
1.49 +STDMETHODIMP
1.50 +ia2AccessibleValue::get_currentValue(VARIANT* aCurrentValue)
1.51 +{
1.52 + A11Y_TRYBLOCK_BEGIN
1.53 +
1.54 + if (!aCurrentValue)
1.55 + return E_INVALIDARG;
1.56 +
1.57 + VariantInit(aCurrentValue);
1.58 +
1.59 + AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
1.60 + if (valueAcc->IsDefunct())
1.61 + return CO_E_OBJNOTCONNECTED;
1.62 +
1.63 + double currentValue = valueAcc->CurValue();
1.64 + if (IsNaN(currentValue))
1.65 + return S_FALSE;
1.66 +
1.67 + aCurrentValue->vt = VT_R8;
1.68 + aCurrentValue->dblVal = currentValue;
1.69 + return S_OK;
1.70 +
1.71 + A11Y_TRYBLOCK_END
1.72 +}
1.73 +
1.74 +STDMETHODIMP
1.75 +ia2AccessibleValue::setCurrentValue(VARIANT aValue)
1.76 +{
1.77 + A11Y_TRYBLOCK_BEGIN
1.78 +
1.79 + AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
1.80 + if (valueAcc->IsDefunct())
1.81 + return CO_E_OBJNOTCONNECTED;
1.82 +
1.83 + if (aValue.vt != VT_R8)
1.84 + return E_INVALIDARG;
1.85 +
1.86 + return valueAcc->SetCurValue(aValue.dblVal) ? S_OK : E_FAIL;
1.87 +
1.88 + A11Y_TRYBLOCK_END
1.89 +}
1.90 +
1.91 +STDMETHODIMP
1.92 +ia2AccessibleValue::get_maximumValue(VARIANT* aMaximumValue)
1.93 +{
1.94 + A11Y_TRYBLOCK_BEGIN
1.95 +
1.96 + if (!aMaximumValue)
1.97 + return E_INVALIDARG;
1.98 +
1.99 + VariantInit(aMaximumValue);
1.100 +
1.101 + AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
1.102 + if (valueAcc->IsDefunct())
1.103 + return CO_E_OBJNOTCONNECTED;
1.104 +
1.105 + double maximumValue = valueAcc->MaxValue();
1.106 + if (IsNaN(maximumValue))
1.107 + return S_FALSE;
1.108 +
1.109 + aMaximumValue->vt = VT_R8;
1.110 + aMaximumValue->dblVal = maximumValue;
1.111 + return S_OK;
1.112 +
1.113 + A11Y_TRYBLOCK_END
1.114 +}
1.115 +
1.116 +STDMETHODIMP
1.117 +ia2AccessibleValue::get_minimumValue(VARIANT* aMinimumValue)
1.118 +{
1.119 + A11Y_TRYBLOCK_BEGIN
1.120 +
1.121 + if (!aMinimumValue)
1.122 + return E_INVALIDARG;
1.123 +
1.124 + VariantInit(aMinimumValue);
1.125 +
1.126 + AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
1.127 + if (valueAcc->IsDefunct())
1.128 + return CO_E_OBJNOTCONNECTED;
1.129 +
1.130 + double minimumValue = valueAcc->MinValue();
1.131 + if (IsNaN(minimumValue))
1.132 + return S_FALSE;
1.133 +
1.134 + aMinimumValue->vt = VT_R8;
1.135 + aMinimumValue->dblVal = minimumValue;
1.136 + return S_OK;
1.137 +
1.138 + A11Y_TRYBLOCK_END
1.139 +}
1.140 +
