MultiPropertySetHandler.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   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 .
 */
 
#pragma once
 
#include <map>
#include <memory>
#include <string_view>
 
#include <rtl/ustring.hxx>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/beans/XMultiPropertySet.hpp>
#include <utility>
 
class   PropertyWrapperBase
{
public:
    explicit PropertyWrapperBase (OUString aName)
        :   msName (std::move(aName))
    {}
    virtual ~PropertyWrapperBase()
    {}
 
    virtual void    SetValue    (const css::uno::Any & rValue) = 0;
 
    const OUString msName;
};
 
template<class T> class PropertyWrapper : public PropertyWrapperBase
{
public:
    PropertyWrapper (const OUString & rName, T & rValue)
        :   PropertyWrapperBase (rName),
            mrValue (rValue)
    {}
 
    virtual void    SetValue    (const css::uno::Any & rValue) override
    {
        rValue >>= mrValue;
    }
 
private:
    T   &   mrValue;
};
 
class   OUStringComparison
{
public:
    bool    operator()  (std::u16string_view a, std::u16string_view b) const
    {
        return (a.compare (b) < 0);
    }
};
 
class   MultiPropertySetHandler
{
public:
    explicit MultiPropertySetHandler (css::uno::Reference<
        css::uno::XInterface> xObject);
    template<class T> void  Add (const OUString & sName, T& rValue)
    {
        aPropertyList[sName] = std::make_unique<PropertyWrapper<T>>(sName, rValue);
    }
 
    inline  bool    GetProperties();
 
private:
    inline  bool    MultiGet    (const css::uno::Sequence<
        OUString> & rNameList);
 
    inline  bool    SingleGet   (const css::uno::Sequence<
        OUString> & rNameList);
 
    ::std::map< OUString, std::unique_ptr<PropertyWrapperBase>, OUStringComparison> aPropertyList;
 
    css::uno::Reference< css::uno::XInterface>    mxObject;
};
 
MultiPropertySetHandler::MultiPropertySetHandler (css::uno::Reference<
    css::uno::XInterface> xObject)
        :   mxObject (std::move(xObject))
{
}
 
bool    MultiPropertySetHandler::GetProperties()
{
    css::uno::Sequence< OUString> aNameList (aPropertyList.size());
    auto aNameListRange = asNonConstRange(aNameList);
    int i = 0;
    for (const auto& rProperty : aPropertyList)
        aNameListRange[i++] = rProperty.second->msName;
    if ( ! MultiGet(aNameList))
        if ( ! SingleGet(aNameList))
            return false;
    return true;
}
 
bool    MultiPropertySetHandler::MultiGet   (const css::uno::Sequence<
    OUString> & rNameList)
{
    css::uno::Reference< css::beans::XMultiPropertySet> xMultiSet (
        mxObject, css::uno::UNO_QUERY);
    if (xMultiSet.is())
        try
        {
            int i = 0;
            css::uno::Sequence< css::uno::Any> aValueList =
                xMultiSet->getPropertyValues (rNameList);
            for (auto& rProperty : aPropertyList)
                rProperty.second->SetValue (aValueList[i++]);
        }
        catch (const css::beans::UnknownPropertyException&)
        {
            return false;
        }
    else
        return false;
 
    return true;
}
 
bool    MultiPropertySetHandler::SingleGet  (const css::uno::Sequence<
    OUString> & rNameList)
{
    css::uno::Reference< css::beans::XPropertySet> xSingleSet (
        mxObject, css::uno::UNO_QUERY);
    if (xSingleSet.is())
        try
        {
            int i = 0;
            for (auto& rProperty : aPropertyList)
                rProperty.second->SetValue (xSingleSet->getPropertyValue (rNameList[i++]));
        }
        catch (const css::beans::UnknownPropertyException&)
        {
            return false;
        }
    else
        return false;
 
    return true;
}
 
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