| /* |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* |
| * $Id: XMLDOMNodeList.cpp 568078 2007-08-21 11:43:25Z amassari $ |
| */ |
| |
| #include "stdafx.h" |
| #include "xml4com.h" |
| #include "XMLDOMNodeList.h" |
| #include "XMLDOMUtil.h" |
| #include "IXMLDOMNodeImpl.h" |
| |
| typedef CComEnumOnSTL<IEnumVARIANT, &IID_IEnumVARIANT, VARIANT, _Copy<VARIANT>,NodeContainerImpl<DOMNodeList> > |
| CComEnumUnknownOnNodeContainer; |
| |
| STDMETHODIMP CXMLDOMNodeList::get_item(long index, IXMLDOMNode **pVal) |
| { |
| ATLTRACE(_T("CXMLDOMNodeList::get_item\n")); |
| |
| if (NULL == pVal) |
| return E_POINTER; |
| |
| *pVal = NULL; |
| HRESULT hr = S_OK; |
| |
| try |
| { |
| if (m_container == 0 || index < 0) |
| return E_INVALIDARG; |
| |
| long length = m_container->getLength(); |
| // |
| // if index is beyond end |
| // return a null object not an exception |
| // |
| if (index < length) |
| hr = wrapNode(m_pIXMLDOMDocument,m_container->item(index),IID_IXMLDOMNode, reinterpret_cast<LPVOID *> (pVal)); |
| } |
| catch(DOMException& ex) |
| { |
| return MakeHRESULT(ex); |
| } |
| |
| catch(...) |
| { |
| return E_FAIL; |
| } |
| |
| return hr; |
| } |
| |
| STDMETHODIMP CXMLDOMNodeList::get_length(long *pVal) |
| { |
| ATLTRACE(_T("CXMLDOMNodeList::get_length\n")); |
| |
| if (NULL == pVal) |
| return E_POINTER; |
| |
| *pVal = 0; |
| |
| if (m_container == 0) |
| return S_OK; |
| |
| try |
| { |
| *pVal = m_container->getLength(); |
| } |
| catch(DOMException& ex) |
| { |
| return MakeHRESULT(ex); |
| } |
| catch(...) |
| { |
| return E_FAIL; |
| } |
| |
| return S_OK; |
| } |
| |
| STDMETHODIMP CXMLDOMNodeList::nextNode(IXMLDOMNode **pVal) |
| { |
| ATLTRACE(_T("CXMLDOMNodeList::nextNode\n")); |
| |
| if (NULL == pVal) |
| return E_POINTER; |
| |
| *pVal = NULL; |
| |
| if (m_container == 0) |
| return S_OK; |
| |
| int length = m_container->getLength(); |
| if (0 == length) |
| return S_OK; |
| |
| if (m_NextNodeIndex >= length) |
| return S_OK; |
| |
| |
| HRESULT hr = S_OK; |
| |
| try |
| { |
| hr = wrapNode(m_pIXMLDOMDocument,m_container->item(m_NextNodeIndex),IID_IXMLDOMNode, reinterpret_cast<LPVOID *> (pVal)); |
| } |
| catch(DOMException& ex) |
| { |
| return MakeHRESULT(ex); |
| } |
| catch(...) |
| { |
| return E_FAIL; |
| } |
| |
| ++m_NextNodeIndex; |
| |
| return hr; |
| } |
| |
| STDMETHODIMP CXMLDOMNodeList::reset() |
| { |
| ATLTRACE(_T("CXMLDOMNodeList::reset\n")); |
| |
| m_NextNodeIndex = 0; |
| |
| return S_OK; |
| } |
| |
| STDMETHODIMP CXMLDOMNodeList::get__newEnum(IUnknown **pVal) |
| { |
| ATLTRACE(_T("CXMLDOMNodeList::get__newEnum\n")); |
| |
| if (NULL == pVal) |
| return E_POINTER; |
| |
| *pVal = NULL; |
| |
| CComObject<CComEnumUnknownOnNodeContainer> *pe = NULL; |
| HRESULT hr = CComObject<CComEnumUnknownOnNodeContainer>::CreateInstance(&pe); |
| if (S_OK != hr) |
| return hr; |
| |
| pe->AddRef(); |
| |
| hr = pe->Init(GetUnknown(),*this); |
| if (S_OK == hr) |
| hr = pe->QueryInterface(pVal); |
| |
| pe->Release(); |
| |
| return hr; |
| } |
| |
| |
| HRESULT CXMLDOMNodeList::InterfaceSupportsErrorInfo(REFIID riid) |
| { |
| if(riid == IID_IXMLDOMNodeList) return S_OK; |
| return S_FALSE; |
| } |