diff options
Diffstat (limited to 'accessible/windows/uia/uiaRawElmProvider.cpp')
| -rw-r--r-- | accessible/windows/uia/uiaRawElmProvider.cpp | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/accessible/windows/uia/uiaRawElmProvider.cpp b/accessible/windows/uia/uiaRawElmProvider.cpp new file mode 100644 index 0000000000..54e54766de --- /dev/null +++ b/accessible/windows/uia/uiaRawElmProvider.cpp @@ -0,0 +1,246 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=2 et sw=2 tw=80: */ +/* 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 "uiaRawElmProvider.h" + +#include "AccessibleWrap.h" +#include "ARIAMap.h" +#include "nsIPersistentProperties2.h" + +using namespace mozilla; +using namespace mozilla::a11y; + +//////////////////////////////////////////////////////////////////////////////// +// uiaRawElmProvider +//////////////////////////////////////////////////////////////////////////////// + +IMPL_IUNKNOWN2(uiaRawElmProvider, + IAccessibleEx, + IRawElementProviderSimple) + +//////////////////////////////////////////////////////////////////////////////// +// IAccessibleEx + +STDMETHODIMP +uiaRawElmProvider::GetObjectForChild(long aIdChild, + __RPC__deref_out_opt IAccessibleEx** aAccEx) +{ + A11Y_TRYBLOCK_BEGIN + + if (!aAccEx) + return E_INVALIDARG; + + *aAccEx = nullptr; + + return mAcc->IsDefunct() ? CO_E_OBJNOTCONNECTED : S_OK; + + A11Y_TRYBLOCK_END +} + +STDMETHODIMP +uiaRawElmProvider::GetIAccessiblePair(__RPC__deref_out_opt IAccessible** aAcc, + __RPC__out long* aIdChild) +{ + A11Y_TRYBLOCK_BEGIN + + if (!aAcc || !aIdChild) + return E_INVALIDARG; + + *aAcc = nullptr; + *aIdChild = 0; + + if (mAcc->IsDefunct()) + return CO_E_OBJNOTCONNECTED; + + *aIdChild = CHILDID_SELF; + *aAcc = mAcc; + mAcc->AddRef(); + + return S_OK; + + A11Y_TRYBLOCK_END +} + +STDMETHODIMP +uiaRawElmProvider::GetRuntimeId(__RPC__deref_out_opt SAFEARRAY** aRuntimeIds) +{ + A11Y_TRYBLOCK_BEGIN + + if (!aRuntimeIds) + return E_INVALIDARG; + + int ids[] = { UiaAppendRuntimeId, static_cast<int>(reinterpret_cast<intptr_t>(mAcc->UniqueID())) }; + *aRuntimeIds = SafeArrayCreateVector(VT_I4, 0, 2); + if (!*aRuntimeIds) + return E_OUTOFMEMORY; + + for (LONG i = 0; i < (LONG)ArrayLength(ids); i++) + SafeArrayPutElement(*aRuntimeIds, &i, (void*)&(ids[i])); + + return S_OK; + + A11Y_TRYBLOCK_END +} + +STDMETHODIMP +uiaRawElmProvider::ConvertReturnedElement(__RPC__in_opt IRawElementProviderSimple* aRawElmProvider, + __RPC__deref_out_opt IAccessibleEx** aAccEx) +{ + A11Y_TRYBLOCK_BEGIN + + if (!aRawElmProvider || !aAccEx) + return E_INVALIDARG; + + *aAccEx = nullptr; + + void* instancePtr = nullptr; + HRESULT hr = aRawElmProvider->QueryInterface(IID_IAccessibleEx, &instancePtr); + if (SUCCEEDED(hr)) + *aAccEx = static_cast<IAccessibleEx*>(instancePtr); + + return hr; + + A11Y_TRYBLOCK_END +} + +//////////////////////////////////////////////////////////////////////////////// +// IRawElementProviderSimple + +STDMETHODIMP +uiaRawElmProvider::get_ProviderOptions(__RPC__out enum ProviderOptions* aOptions) +{ + A11Y_TRYBLOCK_BEGIN + + if (!aOptions) + return E_INVALIDARG; + + // This method is not used with IAccessibleEx implementations. + *aOptions = ProviderOptions_ServerSideProvider; + return S_OK; + + A11Y_TRYBLOCK_END +} + +STDMETHODIMP +uiaRawElmProvider::GetPatternProvider(PATTERNID aPatternId, + __RPC__deref_out_opt IUnknown** aPatternProvider) +{ + A11Y_TRYBLOCK_BEGIN + + if (!aPatternProvider) + return E_INVALIDARG; + + *aPatternProvider = nullptr; + return S_OK; + + A11Y_TRYBLOCK_END +} + +STDMETHODIMP +uiaRawElmProvider::GetPropertyValue(PROPERTYID aPropertyId, + __RPC__out VARIANT* aPropertyValue) +{ + A11Y_TRYBLOCK_BEGIN + + if (!aPropertyValue) + return E_INVALIDARG; + + if (mAcc->IsDefunct()) + return CO_E_OBJNOTCONNECTED; + + aPropertyValue->vt = VT_EMPTY; + + switch (aPropertyId) { + // Accelerator Key / shortcut. + case UIA_AcceleratorKeyPropertyId: { + nsAutoString keyString; + + mAcc->KeyboardShortcut().ToString(keyString); + + if (!keyString.IsEmpty()) { + aPropertyValue->vt = VT_BSTR; + aPropertyValue->bstrVal = ::SysAllocString(keyString.get()); + return S_OK; + } + + break; + } + + // Access Key / mneumonic. + case UIA_AccessKeyPropertyId: { + nsAutoString keyString; + + mAcc->AccessKey().ToString(keyString); + + if (!keyString.IsEmpty()) { + aPropertyValue->vt = VT_BSTR; + aPropertyValue->bstrVal = ::SysAllocString(keyString.get()); + return S_OK; + } + + break; + } + + //ARIA Role / shortcut + case UIA_AriaRolePropertyId: { + nsAutoString xmlRoles; + + nsCOMPtr<nsIPersistentProperties> attributes = mAcc->Attributes(); + attributes->GetStringProperty(NS_LITERAL_CSTRING("xml-roles"), xmlRoles); + + if(!xmlRoles.IsEmpty()) { + aPropertyValue->vt = VT_BSTR; + aPropertyValue->bstrVal = ::SysAllocString(xmlRoles.get()); + return S_OK; + } + + break; + } + + //ARIA Properties + case UIA_AriaPropertiesPropertyId: { + nsAutoString ariaProperties; + + aria::AttrIterator attribIter(mAcc->GetContent()); + nsAutoString attribName, attribValue; + while (attribIter.Next(attribName, attribValue)) { + ariaProperties.Append(attribName); + ariaProperties.Append('='); + ariaProperties.Append(attribValue); + ariaProperties.Append(';'); + } + + if (!ariaProperties.IsEmpty()) { + //remove last delimiter: + ariaProperties.Truncate(ariaProperties.Length()-1); + aPropertyValue->vt = VT_BSTR; + aPropertyValue->bstrVal = ::SysAllocString(ariaProperties.get()); + return S_OK; + } + + break; + } + } + + return S_OK; + + A11Y_TRYBLOCK_END +} + +STDMETHODIMP +uiaRawElmProvider::get_HostRawElementProvider(__RPC__deref_out_opt IRawElementProviderSimple** aRawElmProvider) +{ + A11Y_TRYBLOCK_BEGIN + + if (!aRawElmProvider) + return E_INVALIDARG; + + // This method is not used with IAccessibleEx implementations. + *aRawElmProvider = nullptr; + return S_OK; + + A11Y_TRYBLOCK_END +} |