AtkStateSet *
refStateSetCB(AtkObject *aAtkObj)
{
AtkStateSet *state_set = nsnull;
state_set = ATK_OBJECT_CLASS(parent_class)->ref_state_set(aAtkObj);
AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
if (!accWrap) {
TranslateStates(states::DEFUNCT, state_set);
return state_set;
}
// Map states
TranslateStates(accWrap->State(), state_set);
return state_set;
}
STDMETHODIMP
ia2Accessible::scrollToPoint(enum IA2CoordinateType aCoordType,
long aX, long aY)
{
AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
if (acc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
uint32_t geckoCoordType = (aCoordType == IA2_COORDTYPE_SCREEN_RELATIVE) ?
nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE :
nsIAccessibleCoordinateType::COORDTYPE_PARENT_RELATIVE;
MOZ_ASSERT(!acc->IsProxy());
acc->ScrollToPoint(geckoCoordType, aX, aY);
return S_OK;
}
STDMETHODIMP
ia2Accessible::get_locale(IA2Locale* aLocale)
{
if (!aLocale)
return E_INVALIDARG;
// Language codes consist of a primary code and a possibly empty series of
// subcodes: language-code = primary-code ( "-" subcode )*
// Two-letter primary codes are reserved for [ISO639] language abbreviations.
// Any two-letter subcode is understood to be a [ISO3166] country code.
AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
if (acc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
nsAutoString lang;
acc->Language(lang);
// If primary code consists from two letters then expose it as language.
int32_t offset = lang.FindChar('-', 0);
if (offset == -1) {
if (lang.Length() == 2) {
aLocale->language = ::SysAllocString(lang.get());
return S_OK;
}
} else if (offset == 2) {
aLocale->language = ::SysAllocStringLen(lang.get(), 2);
// If the first subcode consists from two letters then expose it as
// country.
offset = lang.FindChar('-', 3);
if (offset == -1) {
if (lang.Length() == 5) {
aLocale->country = ::SysAllocString(lang.get() + 3);
return S_OK;
}
} else if (offset == 5) {
aLocale->country = ::SysAllocStringLen(lang.get() + 3, 2);
}
}
// Expose as a string if primary code or subcode cannot point to language or
// country abbreviations or if there are more than one subcode.
aLocale->variant = ::SysAllocString(lang.get());
return S_OK;
}
// set methods
static gboolean
addTextSelectionCB(AtkText *aText,
gint aStartOffset,
gint aEndOffset)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
if (!accWrap)
return FALSE;
HyperTextAccessible* text = accWrap->AsHyperText();
if (!text || !text->IsTextRole())
return false;
nsresult rv = text->AddSelection(aStartOffset, aEndOffset);
return NS_SUCCEEDED(rv) ? TRUE : FALSE;
}
void
a11y::ProxyDestroyed(ProxyAccessible* aProxy)
{
AccessibleWrap* wrapper =
reinterpret_cast<AccessibleWrap*>(aProxy->GetWrapper());
MOZ_ASSERT(wrapper);
if (!wrapper)
return;
if (aProxy->IsDoc() && nsWinUtils::IsWindowEmulationStarted()) {
aProxy->AsDoc()->SetEmulatedWindowHandle(nullptr);
}
wrapper->Shutdown();
aProxy->SetWrapper(0);
wrapper->Release();
}
STDMETHODIMP
ia2AccessibleComponent::get_foreground(IA2Color* aForeground)
{
A11Y_TRYBLOCK_BEGIN
AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
if (acc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
nsIFrame* frame = acc->GetFrame();
if (frame)
*aForeground = frame->StyleColor()->mColor;
return S_OK;
A11Y_TRYBLOCK_END
}
const gchar*
getNameCB(AtkObject* aAtkObj)
{
nsAutoString name;
AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
if (accWrap)
accWrap->Name(name);
else if (ProxyAccessible* proxy = GetProxy(aAtkObj))
proxy->Name(name);
else
return nullptr;
// XXX Firing an event from here does not seem right
MaybeFireNameChange(aAtkObj, name);
return aAtkObj->name;
}
static AtkObject*
refAtCB(AtkTable* aTable, gint aRowIdx, gint aColIdx)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
if (!accWrap || aRowIdx < 0 || aColIdx < 0)
return nullptr;
Accessible* cell = accWrap->AsTable()->CellAt(aRowIdx, aColIdx);
if (!cell)
return nullptr;
AtkObject* cellAtkObj = AccessibleWrap::GetAtkObject(cell);
if (cellAtkObj)
g_object_ref(cellAtkObj);
return cellAtkObj;
}
void
a11y::ProxyDestroyed(ProxyAccessible* aProxy)
{
AccessibleWrap* wrapper =
reinterpret_cast<AccessibleWrap*>(aProxy->GetWrapper());
// If aProxy is a document that was created, but
// RecvPDocAccessibleConstructor failed then aProxy->GetWrapper() will be
// null.
if (!wrapper) {
return;
}
wrapper->Shutdown();
aProxy->SetWrapper(0);
wrapper->Release();
}
static AtkObject*
refSelectionCB(AtkSelection *aSelection, gint i)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aSelection));
if (!accWrap || !accWrap->IsSelect())
return nullptr;
Accessible* selectedItem = accWrap->GetSelectedItem(i);
if (!selectedItem)
return nullptr;
AtkObject* atkObj = AccessibleWrap::GetAtkObject(selectedItem);
if (atkObj)
g_object_ref(atkObj);
return atkObj;
}
STDMETHODIMP
ia2Accessible::get_states(AccessibleStates* aStates) {
if (!aStates) return E_INVALIDARG;
*aStates = 0;
// XXX: bug 344674 should come with better approach that we have here.
AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
if (acc->IsDefunct()) {
*aStates = IA2_STATE_DEFUNCT;
return S_OK;
}
uint64_t state;
MOZ_ASSERT(!acc->IsProxy());
state = acc->State();
if (state & states::INVALID) *aStates |= IA2_STATE_INVALID_ENTRY;
if (state & states::REQUIRED) *aStates |= IA2_STATE_REQUIRED;
// The following IA2 states are not supported by Gecko
// IA2_STATE_ARMED
// IA2_STATE_MANAGES_DESCENDANTS
// IA2_STATE_ICONIFIED
// IA2_STATE_INVALID // This is not a state, it is the absence of a state
if (state & states::ACTIVE) *aStates |= IA2_STATE_ACTIVE;
if (state & states::DEFUNCT) *aStates |= IA2_STATE_DEFUNCT;
if (state & states::EDITABLE) *aStates |= IA2_STATE_EDITABLE;
if (state & states::HORIZONTAL) *aStates |= IA2_STATE_HORIZONTAL;
if (state & states::MODAL) *aStates |= IA2_STATE_MODAL;
if (state & states::MULTI_LINE) *aStates |= IA2_STATE_MULTI_LINE;
if (state & states::OPAQUE1) *aStates |= IA2_STATE_OPAQUE;
if (state & states::SELECTABLE_TEXT) *aStates |= IA2_STATE_SELECTABLE_TEXT;
if (state & states::SINGLE_LINE) *aStates |= IA2_STATE_SINGLE_LINE;
if (state & states::STALE) *aStates |= IA2_STATE_STALE;
if (state & states::SUPPORTS_AUTOCOMPLETION)
*aStates |= IA2_STATE_SUPPORTS_AUTOCOMPLETION;
if (state & states::TRANSIENT) *aStates |= IA2_STATE_TRANSIENT;
if (state & states::VERTICAL) *aStates |= IA2_STATE_VERTICAL;
if (state & states::CHECKED) *aStates |= IA2_STATE_CHECKABLE;
if (state & states::PINNED) *aStates |= IA2_STATE_PINNED;
return S_OK;
}
AtkRelationSet *
refRelationSetCB(AtkObject *aAtkObj)
{
AtkRelationSet* relation_set =
ATK_OBJECT_CLASS(parent_class)->ref_relation_set(aAtkObj);
AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
if (!accWrap)
return relation_set;
PRUint32 relationTypes[] = {
nsIAccessibleRelation::RELATION_LABELLED_BY,
nsIAccessibleRelation::RELATION_LABEL_FOR,
nsIAccessibleRelation::RELATION_NODE_CHILD_OF,
nsIAccessibleRelation::RELATION_CONTROLLED_BY,
nsIAccessibleRelation::RELATION_CONTROLLER_FOR,
nsIAccessibleRelation::RELATION_EMBEDS,
nsIAccessibleRelation::RELATION_FLOWS_TO,
nsIAccessibleRelation::RELATION_FLOWS_FROM,
nsIAccessibleRelation::RELATION_DESCRIBED_BY,
nsIAccessibleRelation::RELATION_DESCRIPTION_FOR,
};
for (PRUint32 i = 0; i < ArrayLength(relationTypes); i++) {
AtkRelationType atkType = static_cast<AtkRelationType>(relationTypes[i]);
AtkRelation* atkRelation =
atk_relation_set_get_relation_by_type(relation_set, atkType);
if (atkRelation)
atk_relation_set_remove(relation_set, atkRelation);
Relation rel(accWrap->RelationByType(relationTypes[i]));
nsTArray<AtkObject*> targets;
Accessible* tempAcc = nsnull;
while ((tempAcc = rel.Next()))
targets.AppendElement(AccessibleWrap::GetAtkObject(tempAcc));
if (targets.Length()) {
atkRelation = atk_relation_new(targets.Elements(), targets.Length(), atkType);
atk_relation_set_add(relation_set, atkRelation);
g_object_unref(atkRelation);
}
}
return relation_set;
}
const gchar *
getDocumentAttributeValueCB(AtkDocument *aDocument,
const gchar *aAttrName)
{
ProxyAccessible* proxy = nullptr;
DocAccessible* document = nullptr;
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
if (accWrap) {
if (!accWrap->IsDoc()) {
return nullptr;
}
document = accWrap->AsDoc();
} else {
proxy = GetProxy(ATK_OBJECT(aDocument));
if (!proxy) {
return nullptr;
}
}
nsAutoString attrValue;
if (!strcasecmp(aAttrName, kDocTypeName)) {
if (document) {
document->DocType(attrValue);
} else {
proxy->DocType(attrValue);
}
} else if (!strcasecmp(aAttrName, kDocUrlName)) {
if (document) {
document->URL(attrValue);
} else {
proxy->URL(attrValue);
}
} else if (!strcasecmp(aAttrName, kMimeTypeName)) {
if (document) {
document->MimeType(attrValue);
} else {
proxy->MimeType(attrValue);
}
} else {
return nullptr;
}
return attrValue.IsEmpty() ? nullptr : AccessibleWrap::ReturnString(attrValue);
}
static AtkAttributeSet*
getDefaultAttributesCB(AtkText *aText)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
if (!accWrap)
return nullptr;
HyperTextAccessible* text = accWrap->AsHyperText();
if (!text || !text->IsTextRole())
return nullptr;
nsCOMPtr<nsIPersistentProperties> attributes;
nsresult rv = text->GetDefaultTextAttributes(getter_AddRefs(attributes));
if (NS_FAILED(rv))
return nullptr;
return ConvertToAtkAttributeSet(attributes);
}
STDMETHODIMP
ia2Accessible::get_attributes(BSTR* aAttributes) {
if (!aAttributes) return E_INVALIDARG;
*aAttributes = nullptr;
AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;
// The format is name:value;name:value; with \ for escaping these
// characters ":;=,\".
if (!acc->IsProxy()) {
nsCOMPtr<nsIPersistentProperties> attributes = acc->Attributes();
return ConvertToIA2Attributes(attributes, aAttributes);
}
MOZ_ASSERT(!acc->IsProxy());
return E_UNEXPECTED;
}
static gboolean
setTextSelectionCB(AtkText *aText, gint aSelectionNum,
gint aStartOffset, gint aEndOffset)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
if (accWrap) {
HyperTextAccessible* text = accWrap->AsHyperText();
if (!text || !text->IsTextRole()) {
return FALSE;
}
return text->SetSelectionBoundsAt(aSelectionNum, aStartOffset, aEndOffset);
} else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
return proxy->SetSelectionBoundsAt(aSelectionNum, aStartOffset, aEndOffset);
}
return FALSE;
}
static void
insertTextCB(AtkEditableText *aText,
const gchar *aString, gint aLength, gint *aPosition)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
if (!accWrap)
return;
HyperTextAccessible* text = accWrap->AsHyperText();
if (!text || !text->IsTextRole())
return;
NS_ConvertUTF8toUTF16 strContent(aString, aLength);
text->InsertText(strContent, *aPosition);
MAI_LOG_DEBUG(("EditableText: insert aString=%s, aLength=%d, aPosition=%d",
aString, aLength, *aPosition));
}
static gint
getColumnCountCB(AtkTable *aTable)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
if (!accWrap)
return -1;
nsCOMPtr<nsIAccessibleTable> accTable;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleTable),
getter_AddRefs(accTable));
NS_ENSURE_TRUE(accTable, -1);
PRInt32 count;
nsresult rv = accTable->GetColumnCount(&count);
NS_ENSURE_SUCCESS(rv, -1);
return static_cast<gint>(count);
}
static gint
getRowAtIndexCB(AtkTable *aTable, gint aIndex)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
if (!accWrap)
return -1;
nsCOMPtr<nsIAccessibleTable> accTable;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleTable),
getter_AddRefs(accTable));
NS_ENSURE_TRUE(accTable, -1);
PRInt32 row;
nsresult rv = accTable->GetRowIndexAt(aIndex, &row);
NS_ENSURE_SUCCESS(rv, -1);
return static_cast<gint>(row);
}
static const gchar*
getRowDescriptionCB(AtkTable *aTable, gint aRow)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aTable));
if (!accWrap)
return nsnull;
nsCOMPtr<nsIAccessibleTable> accTable;
accWrap->QueryInterface(NS_GET_IID(nsIAccessibleTable),
getter_AddRefs(accTable));
NS_ENSURE_TRUE(accTable, nsnull);
nsAutoString autoStr;
nsresult rv = accTable->GetRowDescription(aRow, autoStr);
NS_ENSURE_SUCCESS(rv, nsnull);
return AccessibleWrap::ReturnString(autoStr);
}
static gboolean
removeTextSelectionCB(AtkText *aText,
gint aSelectionNum)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
if (accWrap) {
HyperTextAccessible* text = accWrap->AsHyperText();
if (!text || !text->IsTextRole()) {
return FALSE;
}
return text->RemoveFromSelection(aSelectionNum);
} else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
return proxy->RemoveFromSelection(aSelectionNum);
}
return FALSE;
}
STDMETHODIMP
ia2Accessible::get_nRelations(long* aNRelations) {
if (!aNRelations) return E_INVALIDARG;
*aNRelations = 0;
AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
if (acc->IsDefunct()) return CO_E_OBJNOTCONNECTED;
MOZ_ASSERT(!acc->IsProxy());
for (uint32_t idx = 0; idx < ArrayLength(sRelationTypePairs); idx++) {
if (sRelationTypePairs[idx].second == IA2_RELATION_NULL) continue;
Relation rel = acc->RelationByType(sRelationTypePairs[idx].first);
if (rel.Next()) (*aNRelations)++;
}
return S_OK;
}
// Check if aAtkObj is a valid MaiAtkObject, and return the AccessibleWrap
// for it.
AccessibleWrap*
GetAccessibleWrap(AtkObject* aAtkObj)
{
NS_ENSURE_TRUE(IS_MAI_OBJECT(aAtkObj), nsnull);
AccessibleWrap* accWrap = MAI_ATK_OBJECT(aAtkObj)->accWrap;
// Check if the accessible was deconstructed.
if (!accWrap)
return nsnull;
NS_ENSURE_TRUE(accWrap->GetAtkObject() == aAtkObj, nsnull);
AccessibleWrap* appAccWrap = nsAccessNode::GetApplicationAccessible();
if (appAccWrap != accWrap && !accWrap->IsValidObject())
return nsnull;
return accWrap;
}
AtkObject *
getParentCB(AtkObject *aAtkObj)
{
if (!aAtkObj->accessible_parent) {
AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
if (!accWrap)
return nsnull;
Accessible* accParent = accWrap->Parent();
if (!accParent)
return nsnull;
AtkObject* parent = AccessibleWrap::GetAtkObject(accParent);
if (parent)
atk_object_set_parent(aAtkObj, parent);
}
return aAtkObj->accessible_parent;
}
STDMETHODIMP
ia2AccessibleValue::QueryInterface(REFIID iid, void** ppv)
{
*ppv = NULL;
if (IID_IAccessibleValue == iid) {
AccessibleWrap* valueAcc = static_cast<AccessibleWrap*>(this);
if (valueAcc->HasNumericValue()) {
*ppv = static_cast<IAccessibleValue*>(this);
valueAcc->AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
return E_NOINTERFACE;
}
const gchar *
getDescriptionCB(AtkObject *aAtkObj)
{
AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
if (!accWrap || accWrap->IsDefunct())
return nsnull;
/* nsIAccessible is responsible for the non-NULL description */
nsAutoString uniDesc;
accWrap->Description(uniDesc);
NS_ConvertUTF8toUTF16 objDesc(aAtkObj->description);
if (!uniDesc.Equals(objDesc))
atk_object_set_description(aAtkObj,
NS_ConvertUTF16toUTF8(uniDesc).get());
return aAtkObj->description;
}
static gint
getCaretOffsetCB(AtkText *aText)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
if (accWrap) {
HyperTextAccessible* text = accWrap->AsHyperText();
if (!text || !text->IsTextRole()) {
return 0;
}
return static_cast<gint>(text->CaretOffset());
}
if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
return static_cast<gint>(proxy->CaretOffset());
}
return 0;
}
static gint
getTextSelectionCountCB(AtkText *aText)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
if (accWrap) {
HyperTextAccessible* text = accWrap->AsHyperText();
if (!text || !text->IsTextRole()) {
return 0;
}
return text->SelectionCount();
}
if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
return proxy->SelectionCount();
}
return 0;
}
void
a11y::ProxyTextChangeEvent(ProxyAccessible* aText, const nsString& aStr,
int32_t aStart, uint32_t aLen, bool aInsert, bool)
{
AccessibleWrap* wrapper = WrapperFor(aText);
MOZ_ASSERT(wrapper);
if (!wrapper) {
return;
}
auto text = static_cast<HyperTextAccessibleWrap*>(wrapper->AsHyperText());
if (text) {
ia2AccessibleText::UpdateTextChangeData(text, aInsert, aStr, aStart, aLen);
}
uint32_t eventType = aInsert ? nsIAccessibleEvent::EVENT_TEXT_INSERTED :
nsIAccessibleEvent::EVENT_TEXT_REMOVED;
AccessibleWrap::FireWinEvent(wrapper, eventType);
}
STDMETHODIMP
ia2Accessible::get_indexInParent(long* aIndexInParent)
{
if (!aIndexInParent)
return E_INVALIDARG;
*aIndexInParent = -1;
AccessibleWrap* acc = static_cast<AccessibleWrap*>(this);
if (acc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
MOZ_ASSERT(!acc->IsProxy());
*aIndexInParent = acc->IndexInParent();
if (*aIndexInParent == -1)
return S_FALSE;
return S_OK;
}