michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "InterfaceInitFuncs.h"
michael@0: 
michael@0: #include "Accessible-inl.h"
michael@0: #include "HyperTextAccessible.h"
michael@0: #include "nsMai.h"
michael@0: #include "nsMaiHyperlink.h"
michael@0: #include "mozilla/Likely.h"
michael@0: 
michael@0: using namespace mozilla::a11y;
michael@0: 
michael@0: extern "C" {
michael@0: 
michael@0: static AtkHyperlink*
michael@0: getLinkCB(AtkHypertext *aText, gint aLinkIndex)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
michael@0:   if (!accWrap)
michael@0:     return nullptr;
michael@0: 
michael@0:   HyperTextAccessible* hyperText = accWrap->AsHyperText();
michael@0:   NS_ENSURE_TRUE(hyperText, nullptr);
michael@0: 
michael@0:   Accessible* hyperLink = hyperText->LinkAt(aLinkIndex);
michael@0:   if (!hyperLink)
michael@0:     return nullptr;
michael@0: 
michael@0:   AtkObject* hyperLinkAtkObj = AccessibleWrap::GetAtkObject(hyperLink);
michael@0:   AccessibleWrap* accChild = GetAccessibleWrap(hyperLinkAtkObj);
michael@0:   NS_ENSURE_TRUE(accChild, nullptr);
michael@0: 
michael@0:   MaiHyperlink *maiHyperlink = accChild->GetMaiHyperlink();
michael@0:   NS_ENSURE_TRUE(maiHyperlink, nullptr);
michael@0:   return maiHyperlink->GetAtkHyperlink();
michael@0: }
michael@0: 
michael@0: static gint
michael@0: getLinkCountCB(AtkHypertext *aText)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
michael@0:   if (!accWrap)
michael@0:     return -1;
michael@0: 
michael@0:   HyperTextAccessible* hyperText = accWrap->AsHyperText();
michael@0:   NS_ENSURE_TRUE(hyperText, -1);
michael@0: 
michael@0:   return hyperText->LinkCount();
michael@0: }
michael@0: 
michael@0: static gint
michael@0: getLinkIndexCB(AtkHypertext *aText, gint aCharIndex)
michael@0: {
michael@0:   AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
michael@0:   if (!accWrap)
michael@0:     return -1;
michael@0: 
michael@0:   HyperTextAccessible* hyperText = accWrap->AsHyperText();
michael@0:   NS_ENSURE_TRUE(hyperText, -1);
michael@0: 
michael@0:   return hyperText->LinkIndexAtOffset(aCharIndex);
michael@0: }
michael@0: }
michael@0: 
michael@0: void
michael@0: hypertextInterfaceInitCB(AtkHypertextIface* aIface)
michael@0: {
michael@0:   NS_ASSERTION(aIface, "no interface!");
michael@0:   if (MOZ_UNLIKELY(!aIface))
michael@0:     return;
michael@0: 
michael@0:   aIface->get_link = getLinkCB;
michael@0:   aIface->get_n_links = getLinkCountCB;
michael@0:   aIface->get_link_index = getLinkIndexCB;
michael@0: }