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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* 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/.
*/
#pragma once
#include <sal/config.h>
#include <comphelper/comphelperdllapi.h>
#include <comphelper/interfacecontainer4.hxx>
#include <cppuhelper/weak.hxx>
#include <cppuhelper/queryinterface.hxx>
#include <cppuhelper/implbase.hxx>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/lang/XTypeProvider.hpp>
#include <mutex>
namespace comphelper
{
/**
Serves two purposes
(1) extracts code that doesn't need to be templated
(2) helps to handle the custom where we have conflicting interfaces
e.g. multiple UNO interfaces that extend css::lang::XComponent
*/
class COMPHELPER_DLLPUBLIC WeakComponentImplHelperBase : public cppu::OWeakObject,
public css::lang::XComponent
{
public:
virtual ~WeakComponentImplHelperBase() override;
// css::lang::XComponent
virtual void SAL_CALL dispose() override;
virtual void SAL_CALL
addEventListener(css::uno::Reference<css::lang::XEventListener> const& rxListener) override;
virtual void SAL_CALL
removeEventListener(css::uno::Reference<css::lang::XEventListener> const& rxListener) override;
virtual css::uno::Any SAL_CALL queryInterface(css::uno::Type const& rType) override;
/**
Called by dispose for subclasses to do dispose() work.
The mutex is held when called, and subclasses can unlock() the guard if necessary.
*/
virtual void disposing(std::unique_lock<std::mutex>&);
protected:
comphelper::OInterfaceContainerHelper4<css::lang::XEventListener> maEventListeners;
mutable std::mutex m_aMutex;
bool m_bDisposed = false;
};
template <typename... Ifc>
class SAL_DLLPUBLIC_TEMPLATE WeakComponentImplHelper : public WeakComponentImplHelperBase,
public css::lang::XTypeProvider,
public Ifc...
{
public:
virtual void SAL_CALL acquire() noexcept final override { OWeakObject::acquire(); }
virtual void SAL_CALL release() noexcept final override { OWeakObject::release(); }
// css::lang::XComponent
virtual void SAL_CALL dispose() noexcept final override
{
WeakComponentImplHelperBase::dispose();
}
virtual void SAL_CALL addEventListener(
css::uno::Reference<css::lang::XEventListener> const& rxListener) final override
{
WeakComponentImplHelperBase::addEventListener(rxListener);
}
virtual void SAL_CALL removeEventListener(
css::uno::Reference<css::lang::XEventListener> const& rxListener) final override
{
WeakComponentImplHelperBase::removeEventListener(rxListener);
}
virtual css::uno::Any SAL_CALL queryInterface(css::uno::Type const& rType) override
{
return WeakComponentImplHelper_query(rType, class_data_get(), this);
}
// css::lang::XTypeProvider
virtual css::uno::Sequence<css::uno::Type> SAL_CALL getTypes() override
{
static const css::uno::Sequence<css::uno::Type> aTypeList{
cppu::UnoType<css::uno::XWeak>::get(), cppu::UnoType<css::lang::XComponent>::get(),
cppu::UnoType<css::lang::XTypeProvider>::get(), cppu::UnoType<Ifc>::get()...
};
return aTypeList;
}
virtual css::uno::Sequence<sal_Int8> SAL_CALL getImplementationId() override
{
return css::uno::Sequence<sal_Int8>();
}
private:
static cppu::class_data* class_data_get()
{
return cppu::detail::ImplClassData<WeakComponentImplHelper, Ifc...>{}();
}
};
/** WeakComponentImplHelper
*/
COMPHELPER_DLLPUBLIC css::uno::Any
WeakComponentImplHelper_query(css::uno::Type const& rType, cppu::class_data* cd,
WeakComponentImplHelperBase* pBase);
} // namespace comphelper
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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