summaryrefslogtreecommitdiffstats
path: root/winaccessibility/source/UAccCOM/EnumVariant.cxx
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--winaccessibility/source/UAccCOM/EnumVariant.cxx245
1 files changed, 245 insertions, 0 deletions
diff --git a/winaccessibility/source/UAccCOM/EnumVariant.cxx b/winaccessibility/source/UAccCOM/EnumVariant.cxx
new file mode 100644
index 000000000..26cd75b25
--- /dev/null
+++ b/winaccessibility/source/UAccCOM/EnumVariant.cxx
@@ -0,0 +1,245 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "stdafx.h"
+#include "EnumVariant.h"
+#include "MAccessible.h"
+
+#if defined __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
+#endif
+#include <UAccCOM.h>
+#if defined __clang__
+#pragma clang diagnostic pop
+#endif
+
+#include <vcl/svapp.hxx>
+
+using namespace com::sun::star::uno;
+using namespace com::sun::star::accessibility;
+
+
+// CEnumVariant
+
+
+/**
+ * enumerate method,get next element
+ * @param cElements The number of elements to be returned.
+ * @param pvar An array of at least size celt in which the elements are to be returned.
+ * @param pcElementFetched Pointer to the number of elements returned in rgVar, or Null
+ * @return Result.
+ */
+HRESULT STDMETHODCALLTYPE CEnumVariant::Next(ULONG cElements,VARIANT __RPC_FAR *pvar,ULONG __RPC_FAR *pcElementFetched)
+{
+ SolarMutexGuard g;
+
+ long l1;
+ ULONG l2;
+
+ if (pvar == nullptr)
+ return E_INVALIDARG;
+
+ if (pcElementFetched != nullptr)
+ *pcElementFetched = 0;
+
+ // Retrieve the next cElements.
+ for (l1=m_lCurrent, l2=0; l1<m_pXAccessibleSelection->getSelectedAccessibleChildCount() &&
+ l2<cElements; l1++, l2++)
+ {
+ Reference< XAccessible > pRXAcc = m_pXAccessibleSelection->getSelectedAccessibleChild(l1);
+ IAccessible* pChild = nullptr;
+ bool isGet = CMAccessible::get_IAccessibleFromXAccessible(pRXAcc.get(),
+ &pChild);
+ if(isGet)
+ {
+ pvar[l2].vt = VT_DISPATCH;
+ pvar[l2].pdispVal = pChild;
+ pChild->AddRef();
+ }
+ else if(pRXAcc.is())
+ {
+ if(CMAccessible::g_pAgent)
+ CMAccessible::g_pAgent->InsertAccObj(pRXAcc.get(),pUNOInterface);
+ isGet = CMAccessible::get_IAccessibleFromXAccessible(
+ pRXAcc.get(), &pChild);
+ if(isGet)
+ {
+ pvar[l2].vt = VT_DISPATCH;
+ pvar[l2].pdispVal = pChild;
+ pChild->AddRef();
+ }
+ }
+ }
+ // Set count of elements retrieved.
+ if (pcElementFetched != nullptr)
+ *pcElementFetched = l2;
+ m_lCurrent = l1;
+
+ return (l2 < cElements) ? S_FALSE : NOERROR;
+}
+
+/**
+ * skip the elements in the given range when enumerate elements
+ * @param cElements The number of elements to skip.
+ * @return Result.
+ */
+HRESULT STDMETHODCALLTYPE CEnumVariant::Skip(ULONG cElements)
+{
+ SolarMutexGuard g;
+
+ m_lCurrent += cElements;
+ if (m_lCurrent > static_cast<long>(m_lLBound+m_pXAccessibleSelection->getSelectedAccessibleChildCount()))
+ {
+ m_lCurrent = m_lLBound+m_pXAccessibleSelection->getSelectedAccessibleChildCount();
+ return E_FAIL;
+ }
+ else
+ return NOERROR;
+}
+
+
+/**
+ * reset the enumaration position to initial value
+ * @param
+ * @return Result.
+ */
+HRESULT STDMETHODCALLTYPE CEnumVariant::Reset()
+{
+ SolarMutexGuard g;
+
+ m_lCurrent = m_lLBound;
+ return NOERROR;
+}
+
+
+/**
+ *create a new IEnumVariant object,
+ *copy current enumaration container and its state to
+ *the new object
+ *AT will use the copy object to get elements
+ * @param ppenum On return, pointer to the location of the clone enumerator
+ * @return Result.
+ */
+HRESULT STDMETHODCALLTYPE CEnumVariant::Clone(IEnumVARIANT __RPC_FAR *__RPC_FAR *ppenum)
+{
+ SolarMutexGuard g;
+
+ CEnumVariant * penum = nullptr;
+ HRESULT hr;
+ if (ppenum == nullptr)
+ return E_INVALIDARG;
+
+ *ppenum = nullptr;
+
+ hr = Create(&penum);
+ if( hr == S_OK )
+ {
+ penum->PutSelection(reinterpret_cast<hyper>(pUNOInterface));
+ *ppenum = penum;
+ }
+ else
+ {
+ if (penum)
+ penum->Release();
+ }
+ return hr;
+}
+
+/**
+ *Static public method to create a CLSID_EnumVariant com object.
+ * @param ppenum Pointer to accept com object.
+ * @return Result.
+ */
+HRESULT STDMETHODCALLTYPE CEnumVariant::Create(CEnumVariant __RPC_FAR *__RPC_FAR *ppenum)
+{
+ SolarMutexGuard g;
+
+ HRESULT hr = createInstance<CEnumVariant>(IID_IEnumVariant, ppenum);
+ if (S_OK != hr)
+ {
+ return E_FAIL;
+ }
+
+ return S_OK;
+}
+
+/**
+ *Return count of elements in current container
+ * @param.
+ * @return count of elements in current container.
+ */
+long CEnumVariant::GetCountOfElements()
+{
+ if(m_pXAccessibleSelection.is())
+ return m_pXAccessibleSelection->getSelectedAccessibleChildCount();
+ return 0;
+}
+
+/**
+ * Set member m_pXAccessibleSelection to NULL and m_lCurrent to m_lLBound.
+ * @param.
+ * @return Result
+ */
+COM_DECLSPEC_NOTHROW STDMETHODIMP CEnumVariant::ClearEnumeration()
+{
+ // internal IEnumVariant - no mutex meeded
+
+ pUNOInterface = nullptr;
+ m_pXAccessibleSelection = nullptr;
+ m_lCurrent = m_lLBound;
+ return S_OK;
+}
+
+/**
+ *Static method to fetch XAccessibleSelection
+ * @param pXAcc XAccessible interface.
+ * @return XAccessibleSelection interface.
+ */
+static Reference<XAccessibleSelection> GetXAccessibleSelection(XAccessible* pXAcc)
+{
+ if( pXAcc == nullptr)
+ return nullptr;
+
+ Reference< XAccessibleContext > pRContext = pXAcc->getAccessibleContext();
+ if( !pRContext.is() )
+ return nullptr;
+
+ Reference< XAccessibleSelection > pRSelection(pRContext,UNO_QUERY);
+ if( !pRSelection.is() )
+ return nullptr;
+
+ return pRSelection;
+}
+
+/**
+ * Put valid UNO XAccessible interface.
+ * @param pXSelection XAccessible interface.
+ * @return Result...
+ */
+STDMETHODIMP CEnumVariant::PutSelection(hyper pXSelection)
+{
+ // internal IEnumVariant - no mutex meeded
+
+ pUNOInterface = reinterpret_cast<XAccessible*>(pXSelection);
+ m_pXAccessibleSelection = GetXAccessibleSelection(pUNOInterface);
+ return S_OK;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */