NS_IMETHODIMP
xpcAccessibleHyperText::GetCharacterAtOffset(int32_t aOffset,
char16_t* aCharacter)
{
NS_ENSURE_ARG_POINTER(aCharacter);
*aCharacter = L'\0';
HyperTextAccessible* text = static_cast<HyperTextAccessible*>(this);
if (text->IsDefunct())
return NS_ERROR_FAILURE;
*aCharacter = text->CharAt(aOffset);
return NS_OK;
}
static gunichar
getCharacterAtOffsetCB(AtkText* aText, gint aOffset)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
if (accWrap) {
HyperTextAccessible* text = accWrap->AsHyperText();
if (!text || !text->IsTextRole()) {
return 0;
}
// char16_t is unsigned short in Mozilla, gnuichar is guint32 in glib.
return static_cast<gunichar>(text->CharAt(aOffset));
}
if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
return static_cast<gunichar>(proxy->CharAt(aOffset));
}
return 0;
}