gecko/accessible/atk/nsMaiInterfaceHypertext.cpp

102 lines
2.6 KiB
C++

/* -*- 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 "InterfaceInitFuncs.h"
#include "Accessible-inl.h"
#include "HyperTextAccessible.h"
#include "nsMai.h"
#include "nsMaiHyperlink.h"
#include "ProxyAccessible.h"
#include "mozilla/Likely.h"
using namespace mozilla::a11y;
extern "C" {
static AtkHyperlink*
getLinkCB(AtkHypertext *aText, gint aLinkIndex)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
if (accWrap) {
HyperTextAccessible* hyperText = accWrap->AsHyperText();
NS_ENSURE_TRUE(hyperText, nullptr);
Accessible* hyperLink = hyperText->LinkAt(aLinkIndex);
if (!hyperLink) {
return nullptr;
}
AtkObject* hyperLinkAtkObj = AccessibleWrap::GetAtkObject(hyperLink);
AccessibleWrap* accChild = GetAccessibleWrap(hyperLinkAtkObj);
NS_ENSURE_TRUE(accChild, nullptr);
MaiHyperlink* maiHyperlink = accChild->GetMaiHyperlink();
NS_ENSURE_TRUE(maiHyperlink, nullptr);
return maiHyperlink->GetAtkHyperlink();
}
if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
ProxyAccessible* proxyLink = proxy->LinkAt(aLinkIndex);
if (proxyLink) {
NS_WARNING("IMPLEMENT ME! See bug 1146518.");
// We should somehow get from ProxyAccessible* to AtkHyperlink*.
}
return nullptr;
}
return nullptr;
}
static gint
getLinkCountCB(AtkHypertext *aText)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
if (accWrap) {
HyperTextAccessible* hyperText = accWrap->AsHyperText();
NS_ENSURE_TRUE(hyperText, -1);
return hyperText->LinkCount();
}
if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
return proxy->LinkCount();
}
return -1;
}
static gint
getLinkIndexCB(AtkHypertext *aText, gint aCharIndex)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
if (accWrap) {
HyperTextAccessible* hyperText = accWrap->AsHyperText();
NS_ENSURE_TRUE(hyperText, -1);
return hyperText->LinkIndexAtOffset(aCharIndex);
}
if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
return proxy->LinkIndexAtOffset(aCharIndex);
}
return -1;
}
}
void
hypertextInterfaceInitCB(AtkHypertextIface* aIface)
{
NS_ASSERTION(aIface, "no interface!");
if (MOZ_UNLIKELY(!aIface))
return;
aIface->get_link = getLinkCB;
aIface->get_n_links = getLinkCountCB;
aIface->get_link_index = getLinkIndexCB;
}