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/* -*- 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 "Accessible-inl.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) {
if (!aAccEx) return E_INVALIDARG;
*aAccEx = nullptr;
return mAcc->IsDefunct() ? CO_E_OBJNOTCONNECTED : S_OK;
}
STDMETHODIMP
uiaRawElmProvider::GetIAccessiblePair(__RPC__deref_out_opt IAccessible** aAcc,
__RPC__out long* aIdChild) {
if (!aAcc || !aIdChild) return E_INVALIDARG;
*aAcc = nullptr;
*aIdChild = 0;
if (mAcc->IsDefunct()) return CO_E_OBJNOTCONNECTED;
*aIdChild = CHILDID_SELF;
RefPtr<AccessibleWrap> copy(mAcc);
copy.forget(aAcc);
return S_OK;
}
STDMETHODIMP
uiaRawElmProvider::GetRuntimeId(__RPC__deref_out_opt SAFEARRAY** aRuntimeIds) {
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;
}
STDMETHODIMP
uiaRawElmProvider::ConvertReturnedElement(
__RPC__in_opt IRawElementProviderSimple* aRawElmProvider,
__RPC__deref_out_opt IAccessibleEx** aAccEx) {
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;
}
////////////////////////////////////////////////////////////////////////////////
// IRawElementProviderSimple
STDMETHODIMP
uiaRawElmProvider::get_ProviderOptions(
__RPC__out enum ProviderOptions* aOptions) {
if (!aOptions) return E_INVALIDARG;
// This method is not used with IAccessibleEx implementations.
*aOptions = ProviderOptions_ServerSideProvider;
return S_OK;
}
STDMETHODIMP
uiaRawElmProvider::GetPatternProvider(
PATTERNID aPatternId, __RPC__deref_out_opt IUnknown** aPatternProvider) {
if (!aPatternProvider) return E_INVALIDARG;
*aPatternProvider = nullptr;
return S_OK;
}
STDMETHODIMP
uiaRawElmProvider::GetPropertyValue(PROPERTYID aPropertyId,
__RPC__out VARIANT* aPropertyValue) {
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("xml-roles"_ns, 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;
}
STDMETHODIMP
uiaRawElmProvider::get_HostRawElementProvider(
__RPC__deref_out_opt IRawElementProviderSimple** aRawElmProvider) {
if (!aRawElmProvider) return E_INVALIDARG;
// This method is not used with IAccessibleEx implementations.
*aRawElmProvider = nullptr;
return S_OK;
}
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