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comparison: accessible/src/windows/ia2/ia2AccessibleAction.cpp
accessible/src/windows/ia2/ia2AccessibleAction.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 "ia2AccessibleAction.h" | |
| 9 | |
| 10 #include "AccessibleAction_i.c" | |
| 11 | |
| 12 #include "AccessibleWrap.h" | |
| 13 #include "IUnknownImpl.h" | |
| 14 | |
| 15 using namespace mozilla::a11y; | |
| 16 | |
| 17 // IUnknown | |
| 18 | |
| 19 STDMETHODIMP | |
| 20 ia2AccessibleAction::QueryInterface(REFIID iid, void** ppv) | |
| 21 { | |
| 22 if (!ppv) | |
| 23 return E_INVALIDARG; | |
| 24 | |
| 25 *ppv = nullptr; | |
| 26 | |
| 27 if (IID_IAccessibleAction == iid) { | |
| 28 *ppv = static_cast<IAccessibleAction*>(this); | |
| 29 (reinterpret_cast<IUnknown*>(*ppv))->AddRef(); | |
| 30 return S_OK; | |
| 31 } | |
| 32 | |
| 33 return E_NOINTERFACE; | |
| 34 } | |
| 35 | |
| 36 // IAccessibleAction | |
| 37 | |
| 38 STDMETHODIMP | |
| 39 ia2AccessibleAction::nActions(long* aActionCount) | |
| 40 { | |
| 41 A11Y_TRYBLOCK_BEGIN | |
| 42 | |
| 43 if (!aActionCount) | |
| 44 return E_INVALIDARG; | |
| 45 | |
| 46 *aActionCount = 0; | |
| 47 | |
| 48 AccessibleWrap* acc = static_cast<AccessibleWrap*>(this); | |
| 49 if (acc->IsDefunct()) | |
| 50 return CO_E_OBJNOTCONNECTED; | |
| 51 | |
| 52 *aActionCount = acc->ActionCount(); | |
| 53 return S_OK; | |
| 54 | |
| 55 A11Y_TRYBLOCK_END | |
| 56 } | |
| 57 | |
| 58 STDMETHODIMP | |
| 59 ia2AccessibleAction::doAction(long aActionIndex) | |
| 60 { | |
| 61 A11Y_TRYBLOCK_BEGIN | |
| 62 | |
| 63 AccessibleWrap* acc = static_cast<AccessibleWrap*>(this); | |
| 64 if (acc->IsDefunct()) | |
| 65 return CO_E_OBJNOTCONNECTED; | |
| 66 | |
| 67 uint8_t index = static_cast<uint8_t>(aActionIndex); | |
| 68 nsresult rv = acc->DoAction(index); | |
| 69 return GetHRESULT(rv); | |
| 70 | |
| 71 A11Y_TRYBLOCK_END | |
| 72 } | |
| 73 | |
| 74 STDMETHODIMP | |
| 75 ia2AccessibleAction::get_description(long aActionIndex, BSTR *aDescription) | |
| 76 { | |
| 77 A11Y_TRYBLOCK_BEGIN | |
| 78 | |
| 79 if (!aDescription) | |
| 80 return E_INVALIDARG; | |
| 81 | |
| 82 *aDescription = nullptr; | |
| 83 | |
| 84 AccessibleWrap* acc = static_cast<AccessibleWrap*>(this); | |
| 85 if (acc->IsDefunct()) | |
| 86 return CO_E_OBJNOTCONNECTED; | |
| 87 | |
| 88 nsAutoString description; | |
| 89 uint8_t index = static_cast<uint8_t>(aActionIndex); | |
| 90 nsresult rv = acc->GetActionDescription(index, description); | |
| 91 if (NS_FAILED(rv)) | |
| 92 return GetHRESULT(rv); | |
| 93 | |
| 94 if (description.IsEmpty()) | |
| 95 return S_FALSE; | |
| 96 | |
| 97 *aDescription = ::SysAllocStringLen(description.get(), | |
| 98 description.Length()); | |
| 99 return *aDescription ? S_OK : E_OUTOFMEMORY; | |
| 100 | |
| 101 A11Y_TRYBLOCK_END | |
| 102 } | |
| 103 | |
| 104 STDMETHODIMP | |
| 105 ia2AccessibleAction::get_keyBinding(long aActionIndex, long aNumMaxBinding, | |
| 106 BSTR **aKeyBinding, | |
| 107 long *aNumBinding) | |
| 108 { | |
| 109 A11Y_TRYBLOCK_BEGIN | |
| 110 | |
| 111 if (!aKeyBinding) | |
| 112 return E_INVALIDARG; | |
| 113 *aKeyBinding = nullptr; | |
| 114 | |
| 115 if (!aNumBinding) | |
| 116 return E_INVALIDARG; | |
| 117 *aNumBinding = 0; | |
| 118 | |
| 119 if (aActionIndex != 0 || aNumMaxBinding < 1) | |
| 120 return E_INVALIDARG; | |
| 121 | |
| 122 AccessibleWrap* acc = static_cast<AccessibleWrap*>(this); | |
| 123 if (acc->IsDefunct()) | |
| 124 return CO_E_OBJNOTCONNECTED; | |
| 125 | |
| 126 // Expose keyboard shortcut if it's not exposed via MSAA keyboard shortcut. | |
| 127 KeyBinding keyBinding = acc->AccessKey(); | |
| 128 if (keyBinding.IsEmpty()) | |
| 129 return S_FALSE; | |
| 130 | |
| 131 keyBinding = acc->KeyboardShortcut(); | |
| 132 if (keyBinding.IsEmpty()) | |
| 133 return S_FALSE; | |
| 134 | |
| 135 nsAutoString keyStr; | |
| 136 keyBinding.ToString(keyStr); | |
| 137 | |
| 138 *aKeyBinding = static_cast<BSTR*>(::CoTaskMemAlloc(sizeof(BSTR*))); | |
| 139 if (!*aKeyBinding) | |
| 140 return E_OUTOFMEMORY; | |
| 141 | |
| 142 *(aKeyBinding[0]) = ::SysAllocStringLen(keyStr.get(), keyStr.Length()); | |
| 143 if (!*(aKeyBinding[0])) { | |
| 144 ::CoTaskMemFree(*aKeyBinding); | |
| 145 return E_OUTOFMEMORY; | |
| 146 } | |
| 147 | |
| 148 *aNumBinding = 1; | |
| 149 return S_OK; | |
| 150 | |
| 151 A11Y_TRYBLOCK_END | |
| 152 } | |
| 153 | |
| 154 STDMETHODIMP | |
| 155 ia2AccessibleAction::get_name(long aActionIndex, BSTR *aName) | |
| 156 { | |
| 157 A11Y_TRYBLOCK_BEGIN | |
| 158 | |
| 159 if (!aName) | |
| 160 return E_INVALIDARG; | |
| 161 | |
| 162 *aName = nullptr; | |
| 163 | |
| 164 AccessibleWrap* acc = static_cast<AccessibleWrap*>(this); | |
| 165 if (acc->IsDefunct()) | |
| 166 return CO_E_OBJNOTCONNECTED; | |
| 167 | |
| 168 nsAutoString name; | |
| 169 uint8_t index = static_cast<uint8_t>(aActionIndex); | |
| 170 nsresult rv = acc->GetActionName(index, name); | |
| 171 if (NS_FAILED(rv)) | |
| 172 return GetHRESULT(rv); | |
| 173 | |
| 174 if (name.IsEmpty()) | |
| 175 return S_FALSE; | |
| 176 | |
| 177 *aName = ::SysAllocStringLen(name.get(), name.Length()); | |
| 178 return *aName ? S_OK : E_OUTOFMEMORY; | |
| 179 | |
| 180 A11Y_TRYBLOCK_END | |
| 181 } | |
| 182 | |
| 183 STDMETHODIMP | |
| 184 ia2AccessibleAction::get_localizedName(long aActionIndex, BSTR *aLocalizedName) | |
| 185 { | |
| 186 A11Y_TRYBLOCK_BEGIN | |
| 187 | |
| 188 if (!aLocalizedName) | |
| 189 return E_INVALIDARG; | |
| 190 | |
| 191 *aLocalizedName = nullptr; | |
| 192 return E_NOTIMPL; | |
| 193 | |
| 194 A11Y_TRYBLOCK_END | |
| 195 } |
