From ed5640d8b587fbcfed7dd7967f3de04b37a76f26 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:06:44 +0200 Subject: Adding upstream version 4:7.4.7. Signed-off-by: Daniel Baumann --- include/cppuhelper/weakagg.hxx | 107 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 107 insertions(+) create mode 100644 include/cppuhelper/weakagg.hxx (limited to 'include/cppuhelper/weakagg.hxx') diff --git a/include/cppuhelper/weakagg.hxx b/include/cppuhelper/weakagg.hxx new file mode 100644 index 000000000..0b770a428 --- /dev/null +++ b/include/cppuhelper/weakagg.hxx @@ -0,0 +1,107 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * 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/. + * + * 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 . + */ + +/* + * This file is part of LibreOffice published API. + */ +#ifndef INCLUDED_CPPUHELPER_WEAKAGG_HXX +#define INCLUDED_CPPUHELPER_WEAKAGG_HXX + +#include "cppuhelper/weak.hxx" +#include "cppuhelper/weakref.hxx" +#include "com/sun/star/uno/XAggregation.hpp" +#include "cppuhelper/cppuhelperdllapi.h" + + +namespace cppu +{ + +/** Base class to implement a UNO object supporting weak references, i.e. the object can be held + weakly (by a css::uno::WeakReference) and aggregation, i.e. the object can be + aggregated by another (delegator). + This implementation copes with reference counting. Upon last release(), the virtual dtor + is called. + + @derive + Inherit from this class and delegate acquire()/ release() calls. Re-implement + XAggregation::queryInterface(). +*/ +class CPPUHELPER_DLLPUBLIC OWeakAggObject + : public ::cppu::OWeakObject + , public css::uno::XAggregation +{ +public: + /** Constructor. No delegator set. + */ + OWeakAggObject() + {} + + /** If a delegator is set, then the delegators gets acquired. Otherwise call is delegated to + base class ::cppu::OWeakObject. + */ + virtual void SAL_CALL acquire() SAL_NOEXCEPT SAL_OVERRIDE; + /** If a delegator is set, then the delegators gets released. Otherwise call is delegated to + base class ::cppu::OWeakObject. + */ + virtual void SAL_CALL release() SAL_NOEXCEPT SAL_OVERRIDE; + /** If a delegator is set, then the delegator is queried for the demanded interface. If the + delegator cannot provide the demanded interface, it calls queryAggregation() on its + aggregated objects. + + @param rType demanded interface type + @return demanded type or empty any + @see queryAggregation. + */ + virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType ) SAL_OVERRIDE; + + /** Set the delegator. The delegator member reference is a weak reference. + + @param Delegator the object that delegate its queryInterface to this aggregate. + */ + virtual void SAL_CALL setDelegator( const css::uno::Reference< css::uno::XInterface > & Delegator ) SAL_OVERRIDE; + /** Called by the delegator or queryInterface. Re-implement this method instead of + queryInterface. + + @see queryInterface + */ + virtual css::uno::Any SAL_CALL queryAggregation( const css::uno::Type & rType ) SAL_OVERRIDE; + +protected: + /** Virtual dtor. Called when reference count is 0. + + @attention + Despite the fact that a RuntimeException is allowed to be thrown, you must not throw any + exception upon destruction! + */ + virtual ~OWeakAggObject() SAL_OVERRIDE; + + /** weak reference to delegator. + */ + css::uno::WeakReferenceHelper xDelegator; +private: + OWeakAggObject( const OWeakAggObject & rObj ) SAL_DELETED_FUNCTION; + OWeakAggObject & operator = ( const OWeakAggObject & rObj ) + SAL_DELETED_FUNCTION; +}; + +} + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3