diff options
Diffstat (limited to 'accessible/windows/ia2/ia2AccessibleHyperlink.cpp')
-rw-r--r-- | accessible/windows/ia2/ia2AccessibleHyperlink.cpp | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/accessible/windows/ia2/ia2AccessibleHyperlink.cpp b/accessible/windows/ia2/ia2AccessibleHyperlink.cpp new file mode 100644 index 000000000..c6d564103 --- /dev/null +++ b/accessible/windows/ia2/ia2AccessibleHyperlink.cpp @@ -0,0 +1,205 @@ +/* -*- 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 "Accessible2.h" +#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) +{ + A11Y_TRYBLOCK_BEGIN + + 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; + + A11Y_TRYBLOCK_END +} + +STDMETHODIMP +ia2AccessibleHyperlink::get_anchorTarget(long aIndex, VARIANT* aAnchorTarget) +{ + A11Y_TRYBLOCK_BEGIN + + 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; + + A11Y_TRYBLOCK_END +} + +STDMETHODIMP +ia2AccessibleHyperlink::get_startIndex(long* aIndex) +{ + A11Y_TRYBLOCK_BEGIN + + 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; + + A11Y_TRYBLOCK_END +} + +STDMETHODIMP +ia2AccessibleHyperlink::get_endIndex(long* aIndex) +{ + A11Y_TRYBLOCK_BEGIN + + 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; + + A11Y_TRYBLOCK_END +} + +STDMETHODIMP +ia2AccessibleHyperlink::get_valid(boolean* aValid) +{ + A11Y_TRYBLOCK_BEGIN + + 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; + + A11Y_TRYBLOCK_END +} + |