nsresult
AccessibleWrap::FireAtkTextChangedEvent(AccEvent* aEvent,
AtkObject* aObject)
{
AccTextChangeEvent* event = downcast_accEvent(aEvent);
NS_ENSURE_TRUE(event, NS_ERROR_FAILURE);
int32_t start = event->GetStartOffset();
uint32_t length = event->GetLength();
bool isInserted = event->IsTextInserted();
bool isFromUserInput = aEvent->IsFromUserInput();
if (gAvailableAtkSignals == eUnknown)
gAvailableAtkSignals =
g_signal_lookup("text-insert", G_OBJECT_TYPE(aObject)) ?
eHaveNewAtkTextSignals : eNoNewAtkSignals;
if (gAvailableAtkSignals == eNoNewAtkSignals) {
// XXX remove this code and the gHaveNewTextSignals check when we can
// stop supporting old atk since it doesn't really work anyway
// see bug 619002
const char* signal_name =
oldTextChangeStrings[isFromUserInput][isInserted];
g_signal_emit_by_name(aObject, signal_name, start, length);
} else {
nsAutoString text;
event->GetModifiedText(text);
const char* signal_name =
textChangedStrings[isFromUserInput][isInserted];
g_signal_emit_by_name(aObject, signal_name, start, length,
NS_ConvertUTF16toUTF8(text).get());
}
return NS_OK;
}
already_AddRefed<nsIAccessibleEvent>
a11y::MakeXPCEvent(AccEvent* aEvent)
{
DocAccessible* doc = aEvent->GetDocAccessible();
Accessible* acc = aEvent->GetAccessible();
nsINode* node = acc->GetNode();
nsIDOMNode* domNode = node ? node->AsDOMNode() : nullptr;
bool fromUser = aEvent->IsFromUserInput();
uint32_t type = aEvent->GetEventType();
uint32_t eventGroup = aEvent->GetEventGroups();
nsCOMPtr<nsIAccessibleEvent> xpEvent;
if (eventGroup & (1 << AccEvent::eStateChangeEvent)) {
AccStateChangeEvent* sc = downcast_accEvent(aEvent);
bool extra = false;
uint32_t state = nsAccUtils::To32States(sc->GetState(), &extra);
xpEvent = new xpcAccStateChangeEvent(type, acc, doc, domNode, fromUser,
state, extra, sc->IsStateEnabled());
return xpEvent.forget();
}
if (eventGroup & (1 << AccEvent::eTextChangeEvent)) {
AccTextChangeEvent* tc = downcast_accEvent(aEvent);
nsString text;
tc->GetModifiedText(text);
xpEvent = new xpcAccTextChangeEvent(type, acc, doc, domNode, fromUser,
tc->GetStartOffset(), tc->GetLength(),
tc->IsTextInserted(), text);
return xpEvent.forget();
}
if (eventGroup & (1 << AccEvent::eHideEvent)) {
AccHideEvent* hideEvent = downcast_accEvent(aEvent);
xpEvent = new xpcAccHideEvent(type, acc, doc, domNode, fromUser,
hideEvent->TargetParent(),
hideEvent->TargetNextSibling(),
hideEvent->TargetPrevSibling());
return xpEvent.forget();
}
if (eventGroup & (1 << AccEvent::eCaretMoveEvent)) {
AccCaretMoveEvent* cm = downcast_accEvent(aEvent);
xpEvent = new xpcAccCaretMoveEvent(type, acc, doc, domNode, fromUser,
cm->GetCaretOffset());
return xpEvent.forget();
}
if (eventGroup & (1 << AccEvent::eVirtualCursorChangeEvent)) {
AccVCChangeEvent* vcc = downcast_accEvent(aEvent);
xpEvent = new xpcAccVirtualCursorChangeEvent(type, acc, doc, domNode, fromUser,
vcc->OldAccessible(),
vcc->OldStartOffset(),
vcc->OldEndOffset(),
vcc->Reason());
return xpEvent.forget();
}
xpEvent = new xpcAccEvent(type, acc, doc, domNode, fromUser);
return xpEvent.forget();
}
nsresult
AccessibleWrap::FireAtkTextChangedEvent(AccEvent* aEvent,
AtkObject* aObject)
{
MAI_LOG_DEBUG(("\n\nReceived: EVENT_TEXT_REMOVED/INSERTED\n"));
AccTextChangeEvent* event = downcast_accEvent(aEvent);
NS_ENSURE_TRUE(event, NS_ERROR_FAILURE);
PRInt32 start = event->GetStartOffset();
PRUint32 length = event->GetLength();
bool isInserted = event->IsTextInserted();
bool isFromUserInput = aEvent->IsFromUserInput();
char* signal_name = nsnull;
if (gAvailableAtkSignals == eUnknown)
gAvailableAtkSignals =
g_signal_lookup("text-insert", G_OBJECT_TYPE(aObject)) ?
eHaveNewAtkTextSignals : eNoNewAtkSignals;
if (gAvailableAtkSignals == eNoNewAtkSignals) {
// XXX remove this code and the gHaveNewTextSignals check when we can
// stop supporting old atk since it doesn't really work anyway
// see bug 619002
signal_name = g_strconcat(isInserted ? "text_changed::insert" :
"text_changed::delete",
isFromUserInput ? "" : kNonUserInputEvent, NULL);
g_signal_emit_by_name(aObject, signal_name, start, length);
} else {
nsAutoString text;
event->GetModifiedText(text);
signal_name = g_strconcat(isInserted ? "text-insert" : "text-remove",
isFromUserInput ? "" : "::system", NULL);
g_signal_emit_by_name(aObject, signal_name, start, length,
NS_ConvertUTF16toUTF8(text).get());
}
g_free(signal_name);
return NS_OK;
}
nsresult
HyperTextAccessibleWrap::HandleAccEvent(AccEvent* aEvent)
{
uint32_t eventType = aEvent->GetEventType();
if (eventType == nsIAccessibleEvent::EVENT_TEXT_REMOVED ||
eventType == nsIAccessibleEvent::EVENT_TEXT_INSERTED) {
Accessible* accessible = aEvent->GetAccessible();
if (accessible && accessible->IsHyperText()) {
sLastTextChangeAcc = accessible;
if (!sLastTextChangeString)
sLastTextChangeString = new nsString();
AccTextChangeEvent* event = downcast_accEvent(aEvent);
event->GetModifiedText(*sLastTextChangeString);
sLastTextChangeStart = event->GetStartOffset();
sLastTextChangeEnd = sLastTextChangeStart + event->GetLength();
sLastTextChangeWasInsert = event->IsTextInserted();
}
}
return HyperTextAccessible::HandleAccEvent(aEvent);
}