1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/windows/uia/uiaRawElmProvider.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,246 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "uiaRawElmProvider.h"
1.11 +
1.12 +#include "AccessibleWrap.h"
1.13 +#include "ARIAMap.h"
1.14 +#include "nsIPersistentProperties2.h"
1.15 +
1.16 +using namespace mozilla;
1.17 +using namespace mozilla::a11y;
1.18 +
1.19 +////////////////////////////////////////////////////////////////////////////////
1.20 +// uiaRawElmProvider
1.21 +////////////////////////////////////////////////////////////////////////////////
1.22 +
1.23 +IMPL_IUNKNOWN2(uiaRawElmProvider,
1.24 + IAccessibleEx,
1.25 + IRawElementProviderSimple)
1.26 +
1.27 +////////////////////////////////////////////////////////////////////////////////
1.28 +// IAccessibleEx
1.29 +
1.30 +STDMETHODIMP
1.31 +uiaRawElmProvider::GetObjectForChild(long aIdChild,
1.32 + __RPC__deref_out_opt IAccessibleEx** aAccEx)
1.33 +{
1.34 + A11Y_TRYBLOCK_BEGIN
1.35 +
1.36 + if (!aAccEx)
1.37 + return E_INVALIDARG;
1.38 +
1.39 + *aAccEx = nullptr;
1.40 +
1.41 + return mAcc->IsDefunct() ? CO_E_OBJNOTCONNECTED : S_OK;
1.42 +
1.43 + A11Y_TRYBLOCK_END
1.44 +}
1.45 +
1.46 +STDMETHODIMP
1.47 +uiaRawElmProvider::GetIAccessiblePair(__RPC__deref_out_opt IAccessible** aAcc,
1.48 + __RPC__out long* aIdChild)
1.49 +{
1.50 + A11Y_TRYBLOCK_BEGIN
1.51 +
1.52 + if (!aAcc || !aIdChild)
1.53 + return E_INVALIDARG;
1.54 +
1.55 + *aAcc = nullptr;
1.56 + *aIdChild = 0;
1.57 +
1.58 + if (mAcc->IsDefunct())
1.59 + return CO_E_OBJNOTCONNECTED;
1.60 +
1.61 + *aIdChild = CHILDID_SELF;
1.62 + *aAcc = mAcc;
1.63 + mAcc->AddRef();
1.64 +
1.65 + return S_OK;
1.66 +
1.67 + A11Y_TRYBLOCK_END
1.68 +}
1.69 +
1.70 +STDMETHODIMP
1.71 +uiaRawElmProvider::GetRuntimeId(__RPC__deref_out_opt SAFEARRAY** aRuntimeIds)
1.72 +{
1.73 + A11Y_TRYBLOCK_BEGIN
1.74 +
1.75 + if (!aRuntimeIds)
1.76 + return E_INVALIDARG;
1.77 +
1.78 + int ids[] = { UiaAppendRuntimeId, static_cast<int>(reinterpret_cast<intptr_t>(mAcc->UniqueID())) };
1.79 + *aRuntimeIds = SafeArrayCreateVector(VT_I4, 0, 2);
1.80 + if (!*aRuntimeIds)
1.81 + return E_OUTOFMEMORY;
1.82 +
1.83 + for (LONG i = 0; i < (LONG)ArrayLength(ids); i++)
1.84 + SafeArrayPutElement(*aRuntimeIds, &i, (void*)&(ids[i]));
1.85 +
1.86 + return S_OK;
1.87 +
1.88 + A11Y_TRYBLOCK_END
1.89 +}
1.90 +
1.91 +STDMETHODIMP
1.92 +uiaRawElmProvider::ConvertReturnedElement(__RPC__in_opt IRawElementProviderSimple* aRawElmProvider,
1.93 + __RPC__deref_out_opt IAccessibleEx** aAccEx)
1.94 +{
1.95 + A11Y_TRYBLOCK_BEGIN
1.96 +
1.97 + if (!aRawElmProvider || !aAccEx)
1.98 + return E_INVALIDARG;
1.99 +
1.100 + *aAccEx = nullptr;
1.101 +
1.102 + void* instancePtr = nullptr;
1.103 + HRESULT hr = aRawElmProvider->QueryInterface(IID_IAccessibleEx, &instancePtr);
1.104 + if (SUCCEEDED(hr))
1.105 + *aAccEx = static_cast<IAccessibleEx*>(instancePtr);
1.106 +
1.107 + return hr;
1.108 +
1.109 + A11Y_TRYBLOCK_END
1.110 +}
1.111 +
1.112 +////////////////////////////////////////////////////////////////////////////////
1.113 +// IRawElementProviderSimple
1.114 +
1.115 +STDMETHODIMP
1.116 +uiaRawElmProvider::get_ProviderOptions(__RPC__out enum ProviderOptions* aOptions)
1.117 +{
1.118 + A11Y_TRYBLOCK_BEGIN
1.119 +
1.120 + if (!aOptions)
1.121 + return E_INVALIDARG;
1.122 +
1.123 + // This method is not used with IAccessibleEx implementations.
1.124 + *aOptions = ProviderOptions_ServerSideProvider;
1.125 + return S_OK;
1.126 +
1.127 + A11Y_TRYBLOCK_END
1.128 +}
1.129 +
1.130 +STDMETHODIMP
1.131 +uiaRawElmProvider::GetPatternProvider(PATTERNID aPatternId,
1.132 + __RPC__deref_out_opt IUnknown** aPatternProvider)
1.133 +{
1.134 + A11Y_TRYBLOCK_BEGIN
1.135 +
1.136 + if (!aPatternProvider)
1.137 + return E_INVALIDARG;
1.138 +
1.139 + *aPatternProvider = nullptr;
1.140 + return S_OK;
1.141 +
1.142 + A11Y_TRYBLOCK_END
1.143 +}
1.144 +
1.145 +STDMETHODIMP
1.146 +uiaRawElmProvider::GetPropertyValue(PROPERTYID aPropertyId,
1.147 + __RPC__out VARIANT* aPropertyValue)
1.148 +{
1.149 + A11Y_TRYBLOCK_BEGIN
1.150 +
1.151 + if (!aPropertyValue)
1.152 + return E_INVALIDARG;
1.153 +
1.154 + if (mAcc->IsDefunct())
1.155 + return CO_E_OBJNOTCONNECTED;
1.156 +
1.157 + aPropertyValue->vt = VT_EMPTY;
1.158 +
1.159 + switch (aPropertyId) {
1.160 + // Accelerator Key / shortcut.
1.161 + case UIA_AcceleratorKeyPropertyId: {
1.162 + nsAutoString keyString;
1.163 +
1.164 + mAcc->KeyboardShortcut().ToString(keyString);
1.165 +
1.166 + if (!keyString.IsEmpty()) {
1.167 + aPropertyValue->vt = VT_BSTR;
1.168 + aPropertyValue->bstrVal = ::SysAllocString(keyString.get());
1.169 + return S_OK;
1.170 + }
1.171 +
1.172 + break;
1.173 + }
1.174 +
1.175 + // Access Key / mneumonic.
1.176 + case UIA_AccessKeyPropertyId: {
1.177 + nsAutoString keyString;
1.178 +
1.179 + mAcc->AccessKey().ToString(keyString);
1.180 +
1.181 + if (!keyString.IsEmpty()) {
1.182 + aPropertyValue->vt = VT_BSTR;
1.183 + aPropertyValue->bstrVal = ::SysAllocString(keyString.get());
1.184 + return S_OK;
1.185 + }
1.186 +
1.187 + break;
1.188 + }
1.189 +
1.190 + //ARIA Role / shortcut
1.191 + case UIA_AriaRolePropertyId: {
1.192 + nsAutoString xmlRoles;
1.193 +
1.194 + nsCOMPtr<nsIPersistentProperties> attributes = mAcc->Attributes();
1.195 + attributes->GetStringProperty(NS_LITERAL_CSTRING("xml-roles"), xmlRoles);
1.196 +
1.197 + if(!xmlRoles.IsEmpty()) {
1.198 + aPropertyValue->vt = VT_BSTR;
1.199 + aPropertyValue->bstrVal = ::SysAllocString(xmlRoles.get());
1.200 + return S_OK;
1.201 + }
1.202 +
1.203 + break;
1.204 + }
1.205 +
1.206 + //ARIA Properties
1.207 + case UIA_AriaPropertiesPropertyId: {
1.208 + nsAutoString ariaProperties;
1.209 +
1.210 + aria::AttrIterator attribIter(mAcc->GetContent());
1.211 + nsAutoString attribName, attribValue;
1.212 + while (attribIter.Next(attribName, attribValue)) {
1.213 + ariaProperties.Append(attribName);
1.214 + ariaProperties.Append('=');
1.215 + ariaProperties.Append(attribValue);
1.216 + ariaProperties.Append(';');
1.217 + }
1.218 +
1.219 + if (!ariaProperties.IsEmpty()) {
1.220 + //remove last delimiter:
1.221 + ariaProperties.Truncate(ariaProperties.Length()-1);
1.222 + aPropertyValue->vt = VT_BSTR;
1.223 + aPropertyValue->bstrVal = ::SysAllocString(ariaProperties.get());
1.224 + return S_OK;
1.225 + }
1.226 +
1.227 + break;
1.228 + }
1.229 + }
1.230 +
1.231 + return S_OK;
1.232 +
1.233 + A11Y_TRYBLOCK_END
1.234 +}
1.235 +
1.236 +STDMETHODIMP
1.237 +uiaRawElmProvider::get_HostRawElementProvider(__RPC__deref_out_opt IRawElementProviderSimple** aRawElmProvider)
1.238 +{
1.239 + A11Y_TRYBLOCK_BEGIN
1.240 +
1.241 + if (!aRawElmProvider)
1.242 + return E_INVALIDARG;
1.243 +
1.244 + // This method is not used with IAccessibleEx implementations.
1.245 + *aRawElmProvider = nullptr;
1.246 + return S_OK;
1.247 +
1.248 + A11Y_TRYBLOCK_END
1.249 +}
