enumhelper.hxx

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#ifndef INCLUDED_COMPHELPER_ENUMHELPER_HXX
#define INCLUDED_COMPHELPER_ENUMHELPER_HXX
 
#include <com/sun/star/container/XEnumeration.hpp>
#include <com/sun/star/lang/XEventListener.hpp>
#include <comphelper/comphelperdllapi.h>
#include <cppuhelper/implbase.hxx>
#include <mutex>
#include <variant>
#include <vector>
 
namespace com::sun::star::container { class XIndexAccess; }
namespace com::sun::star::container { class XNameAccess; }
 
namespace comphelper
{
 
class COMPHELPER_DLLPUBLIC OEnumerationByName final :
                         public ::cppu::WeakImplHelper< css::container::XEnumeration ,
                                                          css::lang::XEventListener    >
{
    std::variant<css::uno::Sequence< OUString >, std::vector<OUString>> m_aNames;
    css::uno::Reference< css::container::XNameAccess >  m_xAccess;
    sal_Int32                                           m_nPos;
    bool                                                m_bListening;
    std::mutex m_aLock;
 
public:
    OEnumerationByName(css::uno::Reference< css::container::XNameAccess > _xAccess);
    OEnumerationByName(css::uno::Reference< css::container::XNameAccess > _xAccess,
                       std::vector<OUString>             _aNames  );
    virtual ~OEnumerationByName() override;
 
    virtual sal_Bool SAL_CALL hasMoreElements(  ) override;
    virtual css::uno::Any SAL_CALL nextElement(  ) override;
 
    virtual void SAL_CALL disposing(const css::lang::EventObject& aEvent) override;
 
private:
    sal_Int32 getLength() const;
    const OUString& getElement(sal_Int32 nIndex) const;
    COMPHELPER_DLLPRIVATE void impl_startDisposeListening();
    COMPHELPER_DLLPRIVATE void impl_stopDisposeListening();
};
 
class COMPHELPER_DLLPUBLIC OEnumerationByIndex final :
                          public ::cppu::WeakImplHelper< css::container::XEnumeration ,
                                                           css::lang::XEventListener    >
{
    css::uno::Reference< css::container::XIndexAccess > m_xAccess;
    sal_Int32                                         m_nPos;
    bool                                          m_bListening;
    std::mutex m_aLock;
 
public:
    OEnumerationByIndex(css::uno::Reference< css::container::XIndexAccess > _xAccess);
    virtual ~OEnumerationByIndex() override;
 
    virtual sal_Bool SAL_CALL hasMoreElements(  ) override;
    virtual css::uno::Any SAL_CALL nextElement(  ) override;
 
    virtual void SAL_CALL disposing(const css::lang::EventObject& aEvent) override;
 
private:
    COMPHELPER_DLLPRIVATE void impl_startDisposeListening();
    COMPHELPER_DLLPRIVATE void impl_stopDisposeListening();
};
 
// this is the way that works for ENABLE_LTO with MSVC 2013
class SAL_DLLPUBLIC_TEMPLATE OAnyEnumeration_BASE
    : public ::cppu::WeakImplHelper<css::container::XEnumeration> {};
 
class COMPHELPER_DLLPUBLIC OAnyEnumeration final :
                                           public OAnyEnumeration_BASE
{
    sal_Int32                         m_nPos;
    css::uno::Sequence< css::uno::Any > m_lItems;
    std::mutex m_aLock;
 
public:
    OAnyEnumeration(const css::uno::Sequence< css::uno::Any >& lItems);
    virtual ~OAnyEnumeration() override;
 
    virtual sal_Bool SAL_CALL hasMoreElements(  ) override;
    virtual css::uno::Any SAL_CALL nextElement(  ) override;
 
};
 
}
 
#endif // INCLUDED_COMPHELPER_ENUMHELPER_HXX
 
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