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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 "AccessibleHyperlink.h"
#include "AccessibleHyperlink_i.c"
#include "AccessibleWrap.h"
#include "IUnknownImpl.h"
#include "nsIURI.h"
using namespace mozilla::a11y;
// IUnknown
STDMETHODIMP
ia2AccessibleHyperlink::QueryInterface(REFIID iid, void** ppv) {
if (!ppv) return E_INVALIDARG;
*ppv = nullptr;
if (IID_IAccessibleHyperlink == iid) {
auto accWrap = static_cast<AccessibleWrap*>(this);
if (accWrap->IsProxy()
? !(accWrap->ProxyInterfaces() & Interfaces::HYPERLINK)
: !accWrap->IsLink())
return E_NOINTERFACE;
*ppv = static_cast<IAccessibleHyperlink*>(this);
(reinterpret_cast<IUnknown*>(*ppv))->AddRef();
return S_OK;
}
return ia2AccessibleAction::QueryInterface(iid, ppv);
}
// IAccessibleHyperlink
STDMETHODIMP
ia2AccessibleHyperlink::get_anchor(long aIndex, VARIANT* aAnchor) {
if (!aAnchor) return E_INVALIDARG;
VariantInit(aAnchor);
Accessible* thisObj = static_cast<AccessibleWrap*>(this);
MOZ_ASSERT(!thisObj->IsProxy());
if (thisObj->IsDefunct()) return CO_E_OBJNOTCONNECTED;
if (aIndex < 0 || aIndex >= static_cast<long>(thisObj->AnchorCount()))
return E_INVALIDARG;
if (!thisObj->IsLink()) return S_FALSE;
AccessibleWrap* anchor =
static_cast<AccessibleWrap*>(thisObj->AnchorAt(aIndex));
if (!anchor) return S_FALSE;
void* instancePtr = nullptr;
HRESULT result = anchor->QueryInterface(IID_IUnknown, &instancePtr);
if (FAILED(result)) return result;
aAnchor->punkVal = static_cast<IUnknown*>(instancePtr);
aAnchor->vt = VT_UNKNOWN;
return S_OK;
}
STDMETHODIMP
ia2AccessibleHyperlink::get_anchorTarget(long aIndex, VARIANT* aAnchorTarget) {
if (!aAnchorTarget) {
return E_INVALIDARG;
}
VariantInit(aAnchorTarget);
Accessible* thisObj = static_cast<AccessibleWrap*>(this);
nsAutoCString uriStr;
MOZ_ASSERT(!thisObj->IsProxy());
if (thisObj->IsDefunct()) {
return CO_E_OBJNOTCONNECTED;
}
if (aIndex < 0 || aIndex >= static_cast<long>(thisObj->AnchorCount())) {
return E_INVALIDARG;
}
if (!thisObj->IsLink()) {
return S_FALSE;
}
nsCOMPtr<nsIURI> uri = thisObj->AnchorURIAt(aIndex);
if (!uri) {
return S_FALSE;
}
nsresult rv = uri->GetSpec(uriStr);
if (NS_FAILED(rv)) {
return GetHRESULT(rv);
}
nsAutoString stringURI;
AppendUTF8toUTF16(uriStr, stringURI);
aAnchorTarget->vt = VT_BSTR;
aAnchorTarget->bstrVal =
::SysAllocStringLen(stringURI.get(), stringURI.Length());
return aAnchorTarget->bstrVal ? S_OK : E_OUTOFMEMORY;
}
STDMETHODIMP
ia2AccessibleHyperlink::get_startIndex(long* aIndex) {
if (!aIndex) return E_INVALIDARG;
*aIndex = 0;
MOZ_ASSERT(!HyperTextProxyFor(this));
Accessible* thisObj = static_cast<AccessibleWrap*>(this);
if (thisObj->IsDefunct()) return CO_E_OBJNOTCONNECTED;
if (!thisObj->IsLink()) return S_FALSE;
*aIndex = thisObj->StartOffset();
return S_OK;
}
STDMETHODIMP
ia2AccessibleHyperlink::get_endIndex(long* aIndex) {
if (!aIndex) return E_INVALIDARG;
*aIndex = 0;
MOZ_ASSERT(!HyperTextProxyFor(this));
Accessible* thisObj = static_cast<AccessibleWrap*>(this);
if (thisObj->IsDefunct()) return CO_E_OBJNOTCONNECTED;
if (!thisObj->IsLink()) return S_FALSE;
*aIndex = thisObj->EndOffset();
return S_OK;
}
STDMETHODIMP
ia2AccessibleHyperlink::get_valid(boolean* aValid) {
if (!aValid) return E_INVALIDARG;
*aValid = false;
MOZ_ASSERT(!HyperTextProxyFor(this));
Accessible* thisObj = static_cast<AccessibleWrap*>(this);
if (thisObj->IsDefunct()) return CO_E_OBJNOTCONNECTED;
if (!thisObj->IsLink()) return S_FALSE;
*aValid = thisObj->IsLinkValid();
return S_OK;
}
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