unoxml/source/dom/elementlist.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_UNOXML_SOURCE_DOM_ELEMENTLIST_HXX
  21 #define INCLUDED_UNOXML_SOURCE_DOM_ELEMENTLIST_HXX
  22
  23 #include <vector>
  24
  25 #include <memory>
  26
  27 #include <libxml/tree.h>
  28
  29 #include <sal/types.h>
  30 #include <rtl/ref.hxx>
  31
  32 #include <com/sun/star/uno/Reference.h>
  33 #include <com/sun/star/uno/Exception.hpp>
  34 #include <com/sun/star/xml/dom/XNode.hpp>
  35 #include <com/sun/star/xml/dom/XNodeList.hpp>
  36 #include <com/sun/star/xml/dom/events/XEvent.hpp>
  37 #include <com/sun/star/xml/dom/events/XEventListener.hpp>
  38
  39 #include <cppuhelper/implbase.hxx>
  40
  41 namespace DOM
  42 {
  43     class CElement;
  44
  45     typedef std::vector< xmlNodePtr > nodevector_t;
  46
  47     class CElementListImpl
  48         : public cppu::WeakImplHelper< css::xml::dom::XNodeList,
  49                 css::xml::dom::events::XEventListener >
  50     {
  51     private:
  52         /** @short  proxy weak binding to forward Events to ourself without
  53                     an ownership cycle
  54           */
  55         css::uno::Reference< css::xml::dom::events::XEventListener > m_xEventListener;
  56
  57         ::rtl::Reference<CElement> const m_pElement;
  58         ::osl::Mutex & m_rMutex;
  59         ::std::unique_ptr<xmlChar[]> const m_pName;
  60         ::std::unique_ptr<xmlChar[]> const m_pURI;
  61         bool m_bRebuild;
  62         nodevector_t m_nodevector;
  63
  64         void buildlist(xmlNodePtr pNode, bool start=true);
  65
  66     public:
  67         CElementListImpl(::rtl::Reference<CElement> const& pElement,
  68                 ::osl::Mutex & rMutex,
  69                 OUString const& rName, OUString const*const pURI);
  70
  71         void registerListener(CElement & rElement);
  72
  73         virtual ~CElementListImpl() override;
  74
  75         /**
  76         The number of nodes in the list.
  77         */
  78         virtual sal_Int32 SAL_CALL getLength() throw (css::uno::RuntimeException, std::exception) override;
  79         /**
  80         Returns the indexth item in the collection.
  81         */
  82         virtual css::uno::Reference< css::xml::dom::XNode > SAL_CALL item(sal_Int32 index)
  83             throw (css::uno::RuntimeException, std::exception) override;
  84
  85         // XEventListener
  86         virtual void SAL_CALL handleEvent(const css::uno::Reference< css::xml::dom::events::XEvent >& evt)
  87             throw (css::uno::RuntimeException, std::exception) override;
  88     };
  89
  90     class CElementList
  91         : public cppu::WeakImplHelper< css::xml::dom::XNodeList,
  92                 css::xml::dom::events::XEventListener >
  93     {
  94     private:
  95         rtl::Reference<CElementListImpl> m_xImpl;
  96     public:
  97         CElementList(::rtl::Reference<CElement> const& pElement,
  98                 ::osl::Mutex & rMutex,
  99                 OUString const& rName, OUString const*const pURI = nullptr);
 100
 101         /**
 102         The number of nodes in the list.
 103         */
 104         virtual sal_Int32 SAL_CALL getLength() throw (css::uno::RuntimeException, std::exception) override
 105         {
 106             return m_xImpl->getLength();
 107         }
 108         /**
 109         Returns the indexth item in the collection.
 110         */
 111         virtual css::uno::Reference< css::xml::dom::XNode > SAL_CALL item(sal_Int32 index)
 112             throw (css::uno::RuntimeException, std::exception) override
 113         {
 114             return m_xImpl->item(index);
 115         }
 116
 117         // XEventListener
 118         virtual void SAL_CALL handleEvent(const css::uno::Reference< css::xml::dom::events::XEvent >& evt)
 119             throw (css::uno::RuntimeException, std::exception) override
 120         {
 121             m_xImpl->handleEvent(evt);
 122         }
 123     };
 124 }
 125
 126 #endif
 127
 128 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */