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comparison: accessible/src/windows/ia2/ia2AccessibleValue.cpp
accessible/src/windows/ia2/ia2AccessibleValue.cpp
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:expandtab:shiftwidth=2:tabstop=2: | |
| 3 */ | |
| 4 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 5 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 7 | |
| 8 #include "ia2AccessibleValue.h" | |
| 9 | |
| 10 #include "AccessibleValue_i.c" | |
| 11 | |
| 12 #include "AccessibleWrap.h" | |
| 13 #include "Accessible-inl.h" | |
| 14 #include "IUnknownImpl.h" | |
| 15 | |
| 16 #include "mozilla/FloatingPoint.h" | |
| 17 | |
| 18 using namespace mozilla::a11y; | |
| 19 | |
| 20 // IUnknown | |
| 21 | |
| 22 STDMETHODIMP | |
| 23 ia2AccessibleValue::QueryInterface(REFIID iid, void** ppv) | |
| 24 { | |
| 25 if (!ppv) | |
| 26 return E_INVALIDARG; | |
| 27 | |
| 28 *ppv = nullptr; | |
| 29 | |
| 30 if (IID_IAccessibleValue == iid) { | |
| 31 AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this); | |
| 32 if (valueAcc->HasNumericValue()) { | |
| 33 *ppv = static_cast<IAccessibleValue*>(this); | |
| 34 valueAcc->AddRef(); | |
| 35 return S_OK; | |
| 36 } | |
| 37 | |
| 38 return E_NOINTERFACE; | |
| 39 } | |
| 40 | |
| 41 return E_NOINTERFACE; | |
| 42 } | |
| 43 | |
| 44 // IAccessibleValue | |
| 45 | |
| 46 STDMETHODIMP | |
| 47 ia2AccessibleValue::get_currentValue(VARIANT* aCurrentValue) | |
| 48 { | |
| 49 A11Y_TRYBLOCK_BEGIN | |
| 50 | |
| 51 if (!aCurrentValue) | |
| 52 return E_INVALIDARG; | |
| 53 | |
| 54 VariantInit(aCurrentValue); | |
| 55 | |
| 56 AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this); | |
| 57 if (valueAcc->IsDefunct()) | |
| 58 return CO_E_OBJNOTCONNECTED; | |
| 59 | |
| 60 double currentValue = valueAcc->CurValue(); | |
| 61 if (IsNaN(currentValue)) | |
| 62 return S_FALSE; | |
| 63 | |
| 64 aCurrentValue->vt = VT_R8; | |
| 65 aCurrentValue->dblVal = currentValue; | |
| 66 return S_OK; | |
| 67 | |
| 68 A11Y_TRYBLOCK_END | |
| 69 } | |
| 70 | |
| 71 STDMETHODIMP | |
| 72 ia2AccessibleValue::setCurrentValue(VARIANT aValue) | |
| 73 { | |
| 74 A11Y_TRYBLOCK_BEGIN | |
| 75 | |
| 76 AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this); | |
| 77 if (valueAcc->IsDefunct()) | |
| 78 return CO_E_OBJNOTCONNECTED; | |
| 79 | |
| 80 if (aValue.vt != VT_R8) | |
| 81 return E_INVALIDARG; | |
| 82 | |
| 83 return valueAcc->SetCurValue(aValue.dblVal) ? S_OK : E_FAIL; | |
| 84 | |
| 85 A11Y_TRYBLOCK_END | |
| 86 } | |
| 87 | |
| 88 STDMETHODIMP | |
| 89 ia2AccessibleValue::get_maximumValue(VARIANT* aMaximumValue) | |
| 90 { | |
| 91 A11Y_TRYBLOCK_BEGIN | |
| 92 | |
| 93 if (!aMaximumValue) | |
| 94 return E_INVALIDARG; | |
| 95 | |
| 96 VariantInit(aMaximumValue); | |
| 97 | |
| 98 AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this); | |
| 99 if (valueAcc->IsDefunct()) | |
| 100 return CO_E_OBJNOTCONNECTED; | |
| 101 | |
| 102 double maximumValue = valueAcc->MaxValue(); | |
| 103 if (IsNaN(maximumValue)) | |
| 104 return S_FALSE; | |
| 105 | |
| 106 aMaximumValue->vt = VT_R8; | |
| 107 aMaximumValue->dblVal = maximumValue; | |
| 108 return S_OK; | |
| 109 | |
| 110 A11Y_TRYBLOCK_END | |
| 111 } | |
| 112 | |
| 113 STDMETHODIMP | |
| 114 ia2AccessibleValue::get_minimumValue(VARIANT* aMinimumValue) | |
| 115 { | |
| 116 A11Y_TRYBLOCK_BEGIN | |
| 117 | |
| 118 if (!aMinimumValue) | |
| 119 return E_INVALIDARG; | |
| 120 | |
| 121 VariantInit(aMinimumValue); | |
| 122 | |
| 123 AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this); | |
| 124 if (valueAcc->IsDefunct()) | |
| 125 return CO_E_OBJNOTCONNECTED; | |
| 126 | |
| 127 double minimumValue = valueAcc->MinValue(); | |
| 128 if (IsNaN(minimumValue)) | |
| 129 return S_FALSE; | |
| 130 | |
| 131 aMinimumValue->vt = VT_R8; | |
| 132 aMinimumValue->dblVal = minimumValue; | |
| 133 return S_OK; | |
| 134 | |
| 135 A11Y_TRYBLOCK_END | |
| 136 } | |
| 137 |
