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.
   4  *
   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 #pragma once
  21
  22 #include <vector>
  23 #include <string_view>
  24 #include <memory>
  25
  26 #include <libxml/tree.h>
  27
  28 #include <sal/types.h>
  29 #include <rtl/ref.hxx>
  30
  31 #include <com/sun/star/uno/Reference.h>
  32 #include <com/sun/star/xml/dom/XNode.hpp>
  33 #include <com/sun/star/xml/dom/XNodeList.hpp>
  34 #include <com/sun/star/xml/dom/events/XEvent.hpp>
  35 #include <com/sun/star/xml/dom/events/XEventListener.hpp>
  36
  37 #include <cppuhelper/implbase.hxx>
  38
  39 namespace DOM
  40 {
  41     class CElement;
  42
  43     class CElementListImpl
  44         : public cppu::WeakImplHelper< css::xml::dom::XNodeList,
  45                 css::xml::dom::events::XEventListener >
  46     {
  47     private:
  48         /** @short  proxy weak binding to forward Events to ourself without
  49                     an ownership cycle
  50           */
  51         css::uno::Reference< css::xml::dom::events::XEventListener > m_xEventListener;
  52
  53         ::rtl::Reference<CElement> const m_pElement;
  54         ::osl::Mutex & m_rMutex;
  55         ::std::unique_ptr<xmlChar[]> const m_pName;
  56         ::std::unique_ptr<xmlChar[]> const m_pURI;
  57         bool m_bRebuild;
  58         std::vector< xmlNodePtr > m_nodevector;
  59
  60         void buildlist(xmlNodePtr pNode, bool start=true);
  61
  62     public:
  63         CElementListImpl(::rtl::Reference<CElement> pElement,
  64                 ::osl::Mutex & rMutex,
  65                 std::u16string_view rName, OUString const*const pURI);
  66
  67         void registerListener(CElement & rElement);
  68
  69         virtual ~CElementListImpl() override;
  70
  71         /**
  72         The number of nodes in the list.
  73         */
  74         virtual sal_Int32 SAL_CALL getLength() override;
  75         /**
  76         Returns the indexth item in the collection.
  77         */
  78         virtual css::uno::Reference< css::xml::dom::XNode > SAL_CALL item(sal_Int32 index) override;
  79
  80         // XEventListener
  81         virtual void SAL_CALL handleEvent(const css::uno::Reference< css::xml::dom::events::XEvent >& evt) override;
  82     };
  83
  84     class CElementList
  85         : public cppu::WeakImplHelper< css::xml::dom::XNodeList,
  86                 css::xml::dom::events::XEventListener >
  87     {
  88     private:
  89         rtl::Reference<CElementListImpl> m_xImpl;
  90     public:
  91         CElementList(::rtl::Reference<CElement> const& pElement,
  92                 ::osl::Mutex & rMutex,
  93                 std::u16string_view rName, OUString const*const pURI = nullptr);
  94
  95         /**
  96         The number of nodes in the list.
  97         */
  98         virtual sal_Int32 SAL_CALL getLength() override
  99         {
 100             return m_xImpl->getLength();
 101         }
 102         /**
 103         Returns the indexth item in the collection.
 104         */
 105         virtual css::uno::Reference< css::xml::dom::XNode > SAL_CALL item(sal_Int32 index) override
 106         {
 107             return m_xImpl->item(index);
 108         }
 109
 110         // XEventListener
 111         virtual void SAL_CALL handleEvent(const css::uno::Reference< css::xml::dom::events::XEvent >& evt) override
 112         {
 113             m_xImpl->handleEvent(evt);
 114         }
 115     };
 116 }
 117
 118 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */