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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=2:
*/
/* 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 "ia2AccessibleHypertext.h"
#include "AccessibleHypertext_i.c"
#include "HyperTextAccessibleWrap.h"
#include "IUnknownImpl.h"
using namespace mozilla::a11y;
// IAccessibleHypertext
STDMETHODIMP
ia2AccessibleHypertext::get_nHyperlinks(long* aHyperlinkCount) {
if (!aHyperlinkCount) return E_INVALIDARG;
*aHyperlinkCount = 0;
MOZ_ASSERT(!HyperTextProxyFor(this));
HyperTextAccessibleWrap* hyperText =
static_cast<HyperTextAccessibleWrap*>(this);
if (hyperText->IsDefunct()) return CO_E_OBJNOTCONNECTED;
*aHyperlinkCount = hyperText->LinkCount();
return S_OK;
}
STDMETHODIMP
ia2AccessibleHypertext::get_hyperlink(long aLinkIndex,
IAccessibleHyperlink** aHyperlink) {
if (!aHyperlink) return E_INVALIDARG;
*aHyperlink = nullptr;
AccessibleWrap* hyperLink;
MOZ_ASSERT(!HyperTextProxyFor(this));
HyperTextAccessibleWrap* hyperText =
static_cast<HyperTextAccessibleWrap*>(this);
if (hyperText->IsDefunct()) {
return CO_E_OBJNOTCONNECTED;
}
hyperLink = static_cast<AccessibleWrap*>(hyperText->LinkAt(aLinkIndex));
if (!hyperLink) return E_FAIL;
*aHyperlink = static_cast<IAccessibleHyperlink*>(hyperLink);
(*aHyperlink)->AddRef();
return S_OK;
}
STDMETHODIMP
ia2AccessibleHypertext::get_hyperlinkIndex(long aCharIndex,
long* aHyperlinkIndex) {
if (!aHyperlinkIndex) return E_INVALIDARG;
*aHyperlinkIndex = 0;
MOZ_ASSERT(!HyperTextProxyFor(this));
HyperTextAccessibleWrap* hyperAcc =
static_cast<HyperTextAccessibleWrap*>(this);
if (hyperAcc->IsDefunct()) return CO_E_OBJNOTCONNECTED;
*aHyperlinkIndex = hyperAcc->LinkIndexAtOffset(aCharIndex);
return S_OK;
}
STDMETHODIMP
ia2AccessibleHypertext::get_hyperlinks(IAccessibleHyperlink*** aHyperlinks,
long* aNHyperlinks) {
if (!aHyperlinks || !aNHyperlinks) {
return E_INVALIDARG;
}
*aHyperlinks = nullptr;
*aNHyperlinks = 0;
MOZ_ASSERT(!HyperTextProxyFor(this));
HyperTextAccessibleWrap* hyperText =
static_cast<HyperTextAccessibleWrap*>(this);
if (hyperText->IsDefunct()) {
return CO_E_OBJNOTCONNECTED;
}
uint32_t count = hyperText->LinkCount();
*aNHyperlinks = count;
if (count == 0) {
*aHyperlinks = nullptr;
return S_FALSE;
}
*aHyperlinks = static_cast<IAccessibleHyperlink**>(
::CoTaskMemAlloc(sizeof(IAccessibleHyperlink*) * count));
if (!*aHyperlinks) {
return E_OUTOFMEMORY;
}
for (uint32_t i = 0; i < count; ++i) {
AccessibleWrap* hyperLink =
static_cast<AccessibleWrap*>(hyperText->LinkAt(i));
MOZ_ASSERT(hyperLink);
(*aHyperlinks)[i] = static_cast<IAccessibleHyperlink*>(hyperLink);
(*aHyperlinks)[i]->AddRef();
}
return S_OK;
}
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