Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 228 insertions, 0 deletions

diff --git a/UnoControls/source/controls/OConnectionPointHelper.cxx b/UnoControls/source/controls/OConnectionPointHelper.cxx
new file mode 100644
index 000000000..b6ddaaa51
--- /dev/null
+++ b/UnoControls/source/controls/OConnectionPointHelper.cxx
@@ -0,0 +1,228 @@
+/* -*- 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 .
+ */
+
+#include <OConnectionPointHelper.hxx>
+
+#include <OConnectionPointContainerHelper.hxx>
+
+#include <com/sun/star/lang/InvalidListenerException.hpp>
+#include <cppuhelper/queryinterface.hxx>
+#include <comphelper/sequence.hxx>
+
+//  namespaces
+
+using namespace ::osl;
+using namespace ::cppu;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+
+namespace unocontrols {
+
+//  construct/destruct
+
+OConnectionPointHelper::OConnectionPointHelper(
+    Mutex&                              aMutex                      ,
+    OConnectionPointContainerHelper*    pContainerImplementation    ,
+    Type const &                        aType
+)   : m_aSharedMutex                ( aMutex                    )
+    , m_oContainerWeakReference     ( pContainerImplementation  )
+    , m_pContainerImplementation    ( pContainerImplementation  )
+    , m_aInterfaceType              ( aType                     )
+{
+}
+
+OConnectionPointHelper::~OConnectionPointHelper()
+{
+}
+
+//  XInterface
+
+Any SAL_CALL OConnectionPointHelper::queryInterface( const Type& aType )
+{
+    // Attention:
+    //  Don't use mutex or guard in this method!!! Is a method of XInterface.
+
+    // Ask for my own supported interfaces ...
+    Any aReturn ( ::cppu::queryInterface(   aType                                       ,
+                                            static_cast< XConnectionPoint*  > ( this )
+                                        )
+                );
+
+    // If searched interface not supported by this class ...
+    if ( !aReturn.hasValue() )
+    {
+        // ... ask baseclasses.
+        aReturn = OWeakObject::queryInterface( aType );
+    }
+
+    return aReturn;
+}
+
+//  XInterface
+
+void SAL_CALL OConnectionPointHelper::acquire() noexcept
+{
+    // Attention:
+    //  Don't use mutex or guard in this method!!! Is a method of XInterface.
+
+    // Forward to baseclass
+    OWeakObject::acquire();
+}
+
+//  XInterface
+
+void SAL_CALL OConnectionPointHelper::release() noexcept
+{
+    // Attention:
+    //  Don't use mutex or guard in this method!!! Is a method of XInterface.
+
+    // Forward to baseclass
+    OWeakObject::release();
+}
+
+//  XConnectionPoint
+
+Type SAL_CALL OConnectionPointHelper::getConnectionType()
+{
+    // Ready for multithreading
+    MutexGuard aGuard( m_aSharedMutex );
+
+    // Set default return value, if method failed.
+    if ( !impl_LockContainer() )
+    {
+        throw RuntimeException("Container does not exist!");
+    }
+
+    // If container reference valid, return right type of supported interfaces of THIS connectionpoint.
+    Type aReturnType = m_aInterfaceType;
+    // Don't forget this!
+    impl_UnlockContainer();
+
+    return aReturnType;
+}
+
+//  XConnectionPoint
+
+Reference< XConnectionPointContainer > SAL_CALL OConnectionPointHelper::getConnectionPointContainer()
+{
+    // Ready for multithreading
+    MutexGuard aGuard( m_aSharedMutex );
+    // Convert weakreference to correct uno3-reference and return value. It can be NULL, if container destroyed!
+    return Reference< XConnectionPointContainer >( m_oContainerWeakReference.get(), UNO_QUERY );
+}
+
+//  XConnectionPoint
+
+void SAL_CALL OConnectionPointHelper::advise( const Reference< XInterface >& xListener )
+{
+    // Ready for multithreading
+    MutexGuard aGuard( m_aSharedMutex );
+
+    // If type of listener not the same for this special container ...
+    Any aCheckType = xListener->queryInterface( m_aInterfaceType );
+    if ( aCheckType.hasValue() )
+    {
+        // ... throw an exception.
+        throw InvalidListenerException();
+    }
+
+    // ListenerExistException is obsolete!?
+    // It's the same container for XConnectionPointContainer and XConnectionPoint. But only here we must control, if a listener already exist!?
+    // You can add a listener more than one time at XConnectionPointContainer, but here only one ...
+
+    // Operation is permitted only, if reference to container is valid!
+    if ( !impl_LockContainer() )
+    {
+        throw RuntimeException("Container does not exist!");
+    }
+    // Forward it to OConnectionPointHelperContainer!
+    m_pContainerImplementation->advise( m_aInterfaceType, xListener );
+    // Don't forget this!
+    impl_UnlockContainer();
+}
+
+//  XConnectionPoint
+
+void SAL_CALL OConnectionPointHelper::unadvise( const Reference< XInterface >& xListener )
+{
+    // Ready for multithreading
+    MutexGuard aGuard( m_aSharedMutex );
+    // Operation is permitted only, if reference to container is valid!
+    if ( !impl_LockContainer() )
+    {
+        throw RuntimeException("Container does not exist!");
+
+    }
+    // Forward it to OConnectionPointHelperContainer!
+    m_pContainerImplementation->unadvise( m_aInterfaceType, xListener );
+    // Don't forget this!
+    impl_UnlockContainer();
+}
+
+//  XConnectionPoint
+
+Sequence< Reference< XInterface > > SAL_CALL OConnectionPointHelper::getConnections()
+{
+    // Ready for multithreading
+    MutexGuard aGuard( m_aSharedMutex );
+    // Operation is permitted only, if reference to container is valid!
+    if ( !impl_LockContainer() )
+    {
+        throw RuntimeException("Container does not exist!");
+    }
+    // Set default return value, if method failed.
+    Sequence< Reference< XInterface > > seqReturnConnections;
+    // Get reference to private member of OConnectionPointHelperContainer!
+    comphelper::OMultiTypeInterfaceContainerHelper2& aSharedContainer = m_pContainerImplementation->impl_getMultiTypeContainer();
+    // Get pointer to specialized container which hold all interfaces of searched type.
+    comphelper::OInterfaceContainerHelper2* pSpecialContainer = aSharedContainer.getContainer( m_aInterfaceType );
+    // Get elements of searched type, if some else exist.
+    if ( pSpecialContainer != nullptr )
+    {
+        seqReturnConnections = comphelper::containerToSequence(pSpecialContainer->getElements());
+    }
+    // Don't forget this!
+    impl_UnlockContainer();
+
+    return seqReturnConnections;
+}
+
+//  private method
+
+bool OConnectionPointHelper::impl_LockContainer()
+{
+    // Convert weakreference to hard uno3-reference and return state.
+    // If this reference different from NULL, there exist a hard reference to container. Container-instance can't be destroyed.
+    // Don't forget to "unlock" this reference!
+    m_xLock = m_oContainerWeakReference.get();
+    return m_xLock.is();
+}
+
+//  private method
+
+void OConnectionPointHelper::impl_UnlockContainer()
+{
+    // Free hard uno3-reference to container.
+    // see also "impl_LockContainer()"
+    m_xLock.clear();
+}
+
+}   // namespace unocontrols
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */