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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#include "elementlist.hxx"
+
+#include <string.h>
+
+namespace DOM
+{
+
+ CElementList::CElementList(const CElement* aElement, const OUString& aName)
+ : m_pElement(aElement)
+ , m_aName(aName)
+ , xURI(0)
+ , m_bRebuild(sal_True)
+ {
+ OString o1 = OUStringToOString(aName, RTL_TEXTENCODING_UTF8);
+ xName = new xmlChar[o1.getLength()];
+ strcpy((char*)xName, o1.getStr());
+ registerListener(aElement);
+ }
+
+ CElementList::CElementList(const CElement* aElement, const OUString& aName, const OUString& aURI)
+ : m_pElement(aElement)
+ , m_aName(aName)
+ , m_aURI(aURI)
+ , m_bRebuild(sal_True)
+ {
+ OString o1 = OUStringToOString(aName, RTL_TEXTENCODING_UTF8);
+ xName = new xmlChar[o1.getLength()];
+ strcpy((char*)xName, o1.getStr());
+ OString o2 = OUStringToOString(aURI, RTL_TEXTENCODING_UTF8);
+ xURI = new xmlChar[o2.getLength()];
+ strcpy((char*)xURI, o2.getStr());
+ registerListener(aElement);
+ }
+
+ void CElementList::registerListener(const CElement* pElement)
+ {
+ try {
+ // get the XNode
+ Reference< XNode > xNode(CNode::get(static_cast<const CNode*>(pElement)->m_aNodePtr));
+ Reference< XEventTarget > xTarget(xNode, UNO_QUERY_THROW);
+ OUString aType = OUString::createFromAscii("DOMSubtreeModified");
+ sal_Bool capture = sal_False;
+ xTarget->addEventListener(aType, Reference< XEventListener >(this), capture);
+ } catch (Exception &e){
+ OString aMsg("Exception caught while registering NodeList as listener:\n");
+ aMsg += OUStringToOString(e.Message, RTL_TEXTENCODING_ASCII_US);
+ OSL_ENSURE(sal_False, aMsg.getStr());
+ }
+ }
+
+ void CElementList::buildlist(xmlNodePtr pNode, sal_Bool start)
+ {
+ // bail out if no rebuild is needed
+ if (start) {
+ if (!m_bRebuild)
+ {
+ return;
+ } else {
+ m_nodevector.erase(m_nodevector.begin(), m_nodevector.end());
+ m_bRebuild = sal_False; // don't rebuild until tree is mutated
+ }
+ }
+
+ while (pNode != NULL )
+ {
+ if (pNode->type == XML_ELEMENT_NODE && strcmp((char*)pNode->name, (char*)xName)==0)
+ {
+ if (xURI == NULL)
+ m_nodevector.push_back(pNode);
+ else
+ if (pNode->ns != NULL && strcmp((char*)pNode->ns->href, (char*)xURI) == 0)
+ m_nodevector.push_back(pNode);
+ }
+ if (pNode->children != NULL) buildlist(pNode->children, sal_False);
+
+ if (!start) pNode = pNode->next;
+ else break; // fold back
+ }
+ }
+
+ /**
+ The number of nodes in the list.
+ */
+ sal_Int32 SAL_CALL CElementList::getLength() throw (RuntimeException)
+ {
+ // this has to be 'live'
+ buildlist(static_cast<const CNode*>(m_pElement)->m_aNodePtr);
+ return m_nodevector.size();
+ }
+ /**
+ Returns the indexth item in the collection.
+ */
+ Reference< XNode > SAL_CALL CElementList::item(sal_Int32 index) throw (RuntimeException)
+ {
+ if (index < 0) throw RuntimeException();
+ buildlist(static_cast<const CNode*>(m_pElement)->m_aNodePtr);
+ return Reference< XNode >(CNode::get(m_nodevector[index]));
+ }
+
+ // tree mutations can change the list
+ void SAL_CALL CElementList::handleEvent(const Reference< XEvent >& evt) throw (RuntimeException)
+ {
+ Reference< XEvent > aEvent = evt;
+ m_bRebuild = sal_True;
+ }
+}