94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "InterfaceInitFuncs.h"
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#include "Accessible-inl.h"
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#include "HyperTextAccessible.h"
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#include "nsMai.h"
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#include "nsMaiHyperlink.h"
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#include "ProxyAccessible.h"
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#include "mozilla/Likely.h"
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using namespace mozilla::a11y;
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extern "C" {
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static AtkHyperlink*
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getLinkCB(AtkHypertext *aText, gint aLinkIndex)
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{
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AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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AtkObject* atkHyperLink = nullptr;
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if (accWrap) {
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HyperTextAccessible* hyperText = accWrap->AsHyperText();
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NS_ENSURE_TRUE(hyperText, nullptr);
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Accessible* hyperLink = hyperText->LinkAt(aLinkIndex);
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if (!hyperLink || !hyperLink->IsLink()) {
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return nullptr;
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}
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atkHyperLink = AccessibleWrap::GetAtkObject(hyperLink);
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} else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
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ProxyAccessible* proxyLink = proxy->LinkAt(aLinkIndex);
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if (!proxyLink)
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return nullptr;
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atkHyperLink = GetWrapperFor(proxyLink);
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}
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NS_ENSURE_TRUE(IS_MAI_OBJECT(atkHyperLink), nullptr);
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return MAI_ATK_OBJECT(atkHyperLink)->GetAtkHyperlink();
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}
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static gint
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getLinkCountCB(AtkHypertext *aText)
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{
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AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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if (accWrap) {
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HyperTextAccessible* hyperText = accWrap->AsHyperText();
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NS_ENSURE_TRUE(hyperText, -1);
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return hyperText->LinkCount();
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}
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if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
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return proxy->LinkCount();
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}
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return -1;
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}
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static gint
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getLinkIndexCB(AtkHypertext *aText, gint aCharIndex)
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{
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AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
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if (accWrap) {
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HyperTextAccessible* hyperText = accWrap->AsHyperText();
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NS_ENSURE_TRUE(hyperText, -1);
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return hyperText->LinkIndexAtOffset(aCharIndex);
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}
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if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aText))) {
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return proxy->LinkIndexAtOffset(aCharIndex);
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}
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return -1;
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}
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}
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void
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hypertextInterfaceInitCB(AtkHypertextIface* aIface)
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{
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NS_ASSERTION(aIface, "no interface!");
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if (MOZ_UNLIKELY(!aIface))
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return;
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aIface->get_link = getLinkCB;
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aIface->get_n_links = getLinkCountCB;
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aIface->get_link_index = getLinkIndexCB;
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}
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