forms/source/xforms/namedcollection.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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   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
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  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_FORMS_SOURCE_XFORMS_NAMEDCOLLECTION_HXX
  21 #define INCLUDED_FORMS_SOURCE_XFORMS_NAMEDCOLLECTION_HXX
  22
  23 #include "collection.hxx"
  24 #include <cppuhelper/implbase.hxx>
  25 #include <comphelper/sequence.hxx>
  26 #include <com/sun/star/container/XNameAccess.hpp>
  27 #include <com/sun/star/container/XNamed.hpp>
  28
  29 #include <algorithm>
  30
  31 template<class T>
  32 class NamedCollection : public cppu::ImplInheritanceHelper<
  33                             Collection<T>,
  34                             css::container::XNameAccess>
  35 {
  36     using Collection<T>::maItems;
  37     using Collection<T>::getItem;
  38     using Collection<T>::hasItem;
  39
  40 public:
  41     NamedCollection() {}
  42
  43     const T& getItem( const OUString& rName ) const
  44     {
  45         OSL_ENSURE( hasItem( rName ), "invalid name" );
  46         return *findItem( rName );
  47     }
  48
  49     bool hasItem( const OUString& rName ) const
  50     {
  51         return findItem( rName ) != maItems.end();
  52     }
  53
  54     css::uno::Sequence<OUString> getNames() const
  55     {
  56         // iterate over members, and collect all those that have names
  57         std::vector<OUString> aNames;
  58         for( const T& rItem : maItems )
  59         {
  60             css::uno::Reference<css::container::XNamed>
  61                 xNamed( rItem, css::uno::UNO_QUERY );
  62             if( xNamed.is() )
  63                 aNames.push_back( xNamed->getName() );
  64         }
  65
  66         return comphelper::containerToSequence(aNames);
  67     }
  68
  69 protected:
  70     typename std::vector<T>::const_iterator findItem( const OUString& rName ) const
  71     {
  72         return std::find_if(maItems.begin(), maItems.end(), [&rName](const T& rItem) {
  73             css::uno::Reference<css::container::XNamed>
  74                 xNamed( rItem, css::uno::UNO_QUERY );
  75             return xNamed.is() && xNamed->getName() == rName;
  76         });
  77     }
  78
  79 public:
  80
  81     // XElementAccess
  82     virtual css::uno::Type SAL_CALL getElementType() override
  83     {
  84         return Collection<T>::getElementType();
  85     }
  86
  87     virtual sal_Bool SAL_CALL hasElements() override
  88     {
  89         return Collection<T>::hasElements();
  90     }
  91
  92     // XNameAccess : XElementAccess
  93     virtual css::uno::Any SAL_CALL getByName(
  94         const OUString& aName ) override
  95     {
  96         if( !hasItem( aName ) )
  97             throw css::container::NoSuchElementException();
  98         return css::uno::makeAny( getItem( aName ) );
  99     }
 100
 101     virtual css::uno::Sequence<OUString> SAL_CALL getElementNames() override
 102     {
 103         return getNames();
 104     }
 105
 106     virtual sal_Bool SAL_CALL hasByName(
 107         const OUString& aName ) override
 108     {
 109         return hasItem( aName );
 110     }
 111 };
 112
 113 #endif
 114
 115 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */