propmultiplex2.hxx

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#pragma once
 
#include <com/sun/star/beans/XPropertyChangeListener.hpp>
#include <cppuhelper/implbase.hxx>
#include <comphelper/comphelperdllapi.h>
#include <rtl/ref.hxx>
#include <mutex>
#include <vector>
 
namespace com::sun::star::beans
{
class XPropertySet;
}
 
//= property helper classes
 
namespace comphelper
{
class OPropertyChangeMultiplexer2;
 
//= OPropertyChangeListener
 
class COMPHELPER_DLLPUBLIC OPropertyChangeListener2
{
    friend class OPropertyChangeMultiplexer2;
 
    rtl::Reference<OPropertyChangeMultiplexer2> m_xAdapter;
 
public:
    virtual ~OPropertyChangeListener2();
 
    virtual void _propertyChanged(const css::beans::PropertyChangeEvent& _rEvent) = 0;
 
protected:
    void disposeAdapter(std::unique_lock<std::mutex>& rGuard);
 
private:
    void setAdapter(std::unique_lock<std::mutex>& rGuard, OPropertyChangeMultiplexer2* _pAdapter);
};
 
//= OPropertyChangeMultiplexer2
// A copy of OPropertyChangeMultiplexer except that it uses std::mutex instead osl::Mutex
 
// workaround for incremental linking bugs in MSVC2019
class SAL_DLLPUBLIC_TEMPLATE OPropertyChangeMultiplexer_Base2
    : public cppu::WeakImplHelper<css::beans::XPropertyChangeListener>
{
};
class COMPHELPER_DLLPUBLIC OPropertyChangeMultiplexer2 final
    : public OPropertyChangeMultiplexer_Base2
{
    friend class OPropertyChangeListener2;
    std::mutex& m_rMutex;
    std::vector<OUString> m_aProperties;
    css::uno::Reference<css::beans::XPropertySet> m_xSet;
    OPropertyChangeListener2* m_pListener;
    sal_Int32 m_nLockCount;
    bool m_bListening : 1;
 
    void onListenerDestruction();
    virtual ~OPropertyChangeMultiplexer2() override;
 
public:
    OPropertyChangeMultiplexer2(std::mutex& rMutex, std::unique_lock<std::mutex>& rGuard,
                                OPropertyChangeListener2* _pListener,
                                const css::uno::Reference<css::beans::XPropertySet>& _rxSet);
 
    // XEventListener
    virtual void SAL_CALL disposing(const css::lang::EventObject& Source) override;
 
    // XPropertyChangeListener
    virtual void SAL_CALL propertyChange(const css::beans::PropertyChangeEvent& evt) override;
 
    void lock();
    void unlock();
    sal_Int32 locked() const { return m_nLockCount; }
 
    void addProperty(const OUString& aPropertyName);
    void dispose(std::unique_lock<std::mutex>& rGuard);
};
 
} // namespace comphelper
 
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