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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 "sdnAccessible.h"
#include "ISimpleDOM_i.c"
#include "mozilla/a11y/RemoteAccessible.h"
#include "mozilla/dom/Element.h"
using namespace mozilla;
using namespace mozilla::a11y;
sdnAccessible::~sdnAccessible() = default;
IMPL_IUNKNOWN_QUERY_HEAD(sdnAccessible)
IMPL_IUNKNOWN_QUERY_IFACE(ISimpleDOMNode)
IMPL_IUNKNOWN_QUERY_TAIL_AGGREGATED(mMsaa)
STDMETHODIMP
sdnAccessible::get_nodeInfo(BSTR __RPC_FAR* aNodeName,
short __RPC_FAR* aNameSpaceID,
BSTR __RPC_FAR* aNodeValue,
unsigned int __RPC_FAR* aNumChildren,
unsigned int __RPC_FAR* aUniqueID,
unsigned short __RPC_FAR* aNodeType) {
if (!aNodeName || !aNameSpaceID || !aNodeValue || !aNumChildren ||
!aUniqueID || !aNodeType)
return E_INVALIDARG;
*aNodeName = nullptr;
*aNameSpaceID = 0;
*aNodeValue = nullptr;
*aNumChildren = 0;
*aUniqueID = 0;
*aNodeType = 0;
Accessible* acc = mMsaa->Acc();
if (!acc) {
return CO_E_OBJNOTCONNECTED;
}
// This is a unique ID for every content node. The 3rd party accessibility
// application can compare this to the childID we return for events such as
// focus events, to correlate back to data nodes in their internal object
// model.
*aUniqueID = MsaaAccessible::GetChildIDFor(acc);
if (acc->IsText()) {
*aNodeType = nsINode::TEXT_NODE;
} else if (acc->IsDoc()) {
*aNodeType = nsINode::DOCUMENT_NODE;
} else {
*aNodeType = nsINode::ELEMENT_NODE;
}
if (nsAtom* tag = acc->TagName()) {
nsAutoString nodeName;
tag->ToString(nodeName);
*aNodeName = ::SysAllocString(nodeName.get());
}
return S_OK;
}
STDMETHODIMP
sdnAccessible::get_attributes(unsigned short aMaxAttribs,
BSTR __RPC_FAR* aAttribNames,
short __RPC_FAR* aNameSpaceIDs,
BSTR __RPC_FAR* aAttribValues,
unsigned short __RPC_FAR* aNumAttribs) {
return E_NOTIMPL;
}
STDMETHODIMP
sdnAccessible::get_attributesForNames(unsigned short aMaxAttribs,
BSTR __RPC_FAR* aAttribNames,
short __RPC_FAR* aNameSpaceID,
BSTR __RPC_FAR* aAttribValues) {
if (!aAttribNames || !aNameSpaceID || !aAttribValues) return E_INVALIDARG;
if (!mMsaa->Acc()) {
return CO_E_OBJNOTCONNECTED;
}
// NVDA expects this to succeed for MathML and won't call innerHTML if this
// fails. Therefore, return S_FALSE here instead of E_NOTIMPL, indicating
// that the attributes aren't present.
return S_FALSE;
}
STDMETHODIMP
sdnAccessible::get_computedStyle(
unsigned short aMaxStyleProperties, boolean aUseAlternateView,
BSTR __RPC_FAR* aStyleProperties, BSTR __RPC_FAR* aStyleValues,
unsigned short __RPC_FAR* aNumStyleProperties) {
return E_NOTIMPL;
}
STDMETHODIMP
sdnAccessible::get_computedStyleForProperties(
unsigned short aNumStyleProperties, boolean aUseAlternateView,
BSTR __RPC_FAR* aStyleProperties, BSTR __RPC_FAR* aStyleValues) {
return E_NOTIMPL;
}
// XXX Use MOZ_CAN_RUN_SCRIPT_BOUNDARY for now due to bug 1543294.
MOZ_CAN_RUN_SCRIPT_BOUNDARY STDMETHODIMP
sdnAccessible::scrollTo(boolean aScrollTopLeft) {
return E_NOTIMPL;
}
STDMETHODIMP
sdnAccessible::get_parentNode(ISimpleDOMNode __RPC_FAR* __RPC_FAR* aNode) {
return E_NOTIMPL;
}
STDMETHODIMP
sdnAccessible::get_firstChild(ISimpleDOMNode __RPC_FAR* __RPC_FAR* aNode) {
return E_NOTIMPL;
}
STDMETHODIMP
sdnAccessible::get_lastChild(ISimpleDOMNode __RPC_FAR* __RPC_FAR* aNode) {
return E_NOTIMPL;
}
STDMETHODIMP
sdnAccessible::get_previousSibling(ISimpleDOMNode __RPC_FAR* __RPC_FAR* aNode) {
return E_NOTIMPL;
}
STDMETHODIMP
sdnAccessible::get_nextSibling(ISimpleDOMNode __RPC_FAR* __RPC_FAR* aNode) {
return E_NOTIMPL;
}
STDMETHODIMP
sdnAccessible::get_childAt(unsigned aChildIndex,
ISimpleDOMNode __RPC_FAR* __RPC_FAR* aNode) {
return E_NOTIMPL;
}
STDMETHODIMP
sdnAccessible::get_innerHTML(BSTR __RPC_FAR* aInnerHTML) {
if (!aInnerHTML) return E_INVALIDARG;
*aInnerHTML = nullptr;
Accessible* acc = mMsaa->Acc();
if (!acc) {
return CO_E_OBJNOTCONNECTED;
}
nsAutoString innerHTML;
if (RemoteAccessible* remoteAcc = acc->AsRemote()) {
if (RequestDomainsIfInactive(CacheDomain::InnerHTML)) {
return S_FALSE;
}
if (!remoteAcc->mCachedFields) {
return S_FALSE;
}
remoteAcc->mCachedFields->GetAttribute(CacheKey::InnerHTML, innerHTML);
} else {
if (dom::Element* el = acc->AsLocal()->Elm()) {
el->GetInnerHTML(innerHTML, IgnoreErrors());
}
}
if (innerHTML.IsEmpty()) return S_FALSE;
*aInnerHTML = ::SysAllocStringLen(innerHTML.get(), innerHTML.Length());
if (!*aInnerHTML) return E_OUTOFMEMORY;
return S_OK;
}
STDMETHODIMP
sdnAccessible::get_localInterface(void __RPC_FAR* __RPC_FAR* aLocalInterface) {
if (!aLocalInterface) return E_INVALIDARG;
*aLocalInterface = nullptr;
if (!mMsaa->Acc()) {
return CO_E_OBJNOTCONNECTED;
}
*aLocalInterface = this;
AddRef();
return S_OK;
}
STDMETHODIMP
sdnAccessible::get_language(BSTR __RPC_FAR* aLanguage) { return E_NOTIMPL; }
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