167 lines
3.6 KiB
C++
167 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=2:tabstop=2:
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*/
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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 "ia2AccessibleHyperlink.h"
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#include "AccessibleHyperlink.h"
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#include "AccessibleHyperlink_i.c"
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#include "AccessibleWrap.h"
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#include "IUnknownImpl.h"
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#include "MsaaAccessible.h"
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#include "nsIURI.h"
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using namespace mozilla::a11y;
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Accessible* ia2AccessibleHyperlink::Acc() {
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return static_cast<MsaaAccessible*>(this)->Acc();
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}
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AccessibleWrap* ia2AccessibleHyperlink::LocalAcc() {
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return static_cast<MsaaAccessible*>(this)->LocalAcc();
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}
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// IUnknown
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STDMETHODIMP
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ia2AccessibleHyperlink::QueryInterface(REFIID iid, void** ppv) {
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if (!ppv) return E_INVALIDARG;
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*ppv = nullptr;
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if (IID_IAccessibleHyperlink == iid) {
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Accessible* acc = Acc();
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if (!acc || !acc->IsLink()) {
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return E_NOINTERFACE;
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}
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*ppv = static_cast<IAccessibleHyperlink*>(this);
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(reinterpret_cast<IUnknown*>(*ppv))->AddRef();
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return S_OK;
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}
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return ia2AccessibleAction::QueryInterface(iid, ppv);
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}
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// IAccessibleHyperlink
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STDMETHODIMP
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ia2AccessibleHyperlink::get_anchor(long aIndex, VARIANT* aAnchor) {
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if (!aAnchor) return E_INVALIDARG;
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VariantInit(aAnchor);
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Accessible* thisObj = Acc();
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if (!thisObj) {
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return CO_E_OBJNOTCONNECTED;
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}
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if (aIndex < 0 || aIndex >= static_cast<long>(thisObj->AnchorCount()))
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return E_INVALIDARG;
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if (!thisObj->IsLink()) return S_FALSE;
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Accessible* anchor = thisObj->AnchorAt(aIndex);
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if (!anchor) return S_FALSE;
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RefPtr<IAccessible> result = MsaaAccessible::GetFrom(anchor);
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result.forget(&aAnchor->punkVal);
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aAnchor->vt = VT_UNKNOWN;
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return S_OK;
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}
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STDMETHODIMP
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ia2AccessibleHyperlink::get_anchorTarget(long aIndex, VARIANT* aAnchorTarget) {
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if (!aAnchorTarget) {
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return E_INVALIDARG;
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}
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VariantInit(aAnchorTarget);
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Accessible* thisObj = Acc();
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if (!thisObj) {
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return CO_E_OBJNOTCONNECTED;
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}
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nsAutoCString uriStr;
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if (aIndex < 0 || aIndex >= static_cast<long>(thisObj->AnchorCount())) {
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return E_INVALIDARG;
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}
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if (!thisObj->IsLink()) {
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return S_FALSE;
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}
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nsCOMPtr<nsIURI> uri = thisObj->AnchorURIAt(aIndex);
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if (!uri) {
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return S_FALSE;
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}
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nsresult rv = uri->GetSpec(uriStr);
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if (NS_FAILED(rv)) {
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return GetHRESULT(rv);
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}
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nsAutoString stringURI;
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AppendUTF8toUTF16(uriStr, stringURI);
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aAnchorTarget->vt = VT_BSTR;
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aAnchorTarget->bstrVal =
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::SysAllocStringLen(stringURI.get(), stringURI.Length());
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return aAnchorTarget->bstrVal ? S_OK : E_OUTOFMEMORY;
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}
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STDMETHODIMP
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ia2AccessibleHyperlink::get_startIndex(long* aIndex) {
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if (!aIndex) return E_INVALIDARG;
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*aIndex = 0;
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Accessible* thisObj = Acc();
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if (!thisObj) {
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return CO_E_OBJNOTCONNECTED;
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}
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if (!thisObj->IsLink()) return S_FALSE;
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*aIndex = thisObj->StartOffset();
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return S_OK;
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}
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STDMETHODIMP
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ia2AccessibleHyperlink::get_endIndex(long* aIndex) {
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if (!aIndex) return E_INVALIDARG;
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*aIndex = 0;
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Accessible* thisObj = Acc();
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if (!thisObj) {
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return CO_E_OBJNOTCONNECTED;
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}
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if (!thisObj->IsLink()) return S_FALSE;
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*aIndex = thisObj->EndOffset();
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return S_OK;
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}
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STDMETHODIMP
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ia2AccessibleHyperlink::get_valid(boolean* aValid) {
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if (!aValid) return E_INVALIDARG;
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*aValid = false;
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Accessible* thisObj = Acc();
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if (!thisObj) {
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return CO_E_OBJNOTCONNECTED;
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}
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if (!thisObj->IsLink()) return S_FALSE;
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*aValid = thisObj->IsLinkValid();
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return S_OK;
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}
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