1 files changed, 192 insertions, 0 deletions
diff --git a/sd/source/ui/framework/configuration/ConfigurationControllerBroadcaster.cxx b/sd/source/ui/framework/configuration/ConfigurationControllerBroadcaster.cxx
new file mode 100644
index 0000000000..e5ee500f01
--- /dev/null
+++ b/sd/source/ui/framework/configuration/ConfigurationControllerBroadcaster.cxx
@@ -0,0 +1,192 @@
+/* -*- 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 "ConfigurationControllerBroadcaster.hxx"
+#include <com/sun/star/drawing/framework/XConfigurationChangeListener.hpp>
+#include <com/sun/star/drawing/framework/XConfigurationController.hpp>
+#include <com/sun/star/drawing/framework/XResource.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/DisposedException.hpp>
+#include <comphelper/diagnose_ex.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::drawing::framework;
+
+namespace sd::framework {
+
+ConfigurationControllerBroadcaster::ConfigurationControllerBroadcaster (
+    const Reference<XConfigurationController>& rxController)
+    : mxConfigurationController(rxController)
+{
+}
+
+void ConfigurationControllerBroadcaster::AddListener(
+    const Reference<XConfigurationChangeListener>& rxListener,
+    const OUString& rsEventType,
+    const Any& rUserData)
+{
+    if ( ! rxListener.is())
+        throw lang::IllegalArgumentException("invalid listener",
+            mxConfigurationController,
+            0);
+
+    maListenerMap.try_emplace(rsEventType);
+
+    ListenerDescriptor aDescriptor;
+    aDescriptor.mxListener = rxListener;
+    aDescriptor.maUserData = rUserData;
+    maListenerMap[rsEventType].push_back(aDescriptor);
+}
+
+void ConfigurationControllerBroadcaster::RemoveListener(
+    const Reference<XConfigurationChangeListener>& rxListener)
+{
+    if ( ! rxListener.is())
+        throw lang::IllegalArgumentException("invalid listener",
+            mxConfigurationController,
+            0);
+
+    ListenerList::iterator iList;
+    for (auto& rMap : maListenerMap)
+    {
+        iList = std::find_if(rMap.second.begin(), rMap.second.end(),
+            [&rxListener](const ListenerDescriptor& rList) { return rList.mxListener == rxListener; });
+        if (iList != rMap.second.end())
+            rMap.second.erase(iList);
+    }
+}
+
+void ConfigurationControllerBroadcaster::NotifyListeners (
+    const ListenerList& rList,
+    const ConfigurationChangeEvent& rEvent)
+{
+    // Create a local copy of the event in which the user data is modified
+    // for every listener.
+    ConfigurationChangeEvent aEvent (rEvent);
+
+    for (const auto& rListener : rList)
+    {
+        try
+        {
+            aEvent.UserData = rListener.maUserData;
+            rListener.mxListener->notifyConfigurationChange(aEvent);
+        }
+        catch (const lang::DisposedException& rException)
+        {
+            // When the exception comes from the listener itself then
+            // unregister it.
+            if (rException.Context == rListener.mxListener)
+                RemoveListener(rListener.mxListener);
+        }
+        catch (const RuntimeException&)
+        {
+            DBG_UNHANDLED_EXCEPTION("sd");
+        }
+    }
+}
+
+void ConfigurationControllerBroadcaster::NotifyListeners (const ConfigurationChangeEvent& rEvent)
+{
+    // Notify the specialized listeners.
+    ListenerMap::const_iterator iMap (maListenerMap.find(rEvent.Type));
+    if (iMap != maListenerMap.end())
+    {
+        // Create a local list of the listeners to avoid problems with
+        // concurrent changes and to be able to remove disposed listeners.
+        ListenerList aList (iMap->second.begin(), iMap->second.end());
+        NotifyListeners(aList,rEvent);
+    }
+
+    // Notify the universal listeners.
+    iMap = maListenerMap.find(OUString());
+    if (iMap != maListenerMap.end())
+    {
+        // Create a local list of the listeners to avoid problems with
+        // concurrent changes and to be able to remove disposed listeners.
+        ListenerList aList (iMap->second.begin(), iMap->second.end());
+        NotifyListeners(aList,rEvent);
+    }
+}
+
+void ConfigurationControllerBroadcaster::NotifyListeners (
+    const OUString& rsEventType,
+    const Reference<XResourceId>& rxResourceId,
+    const Reference<XResource>& rxResourceObject)
+{
+    ConfigurationChangeEvent aEvent;
+    aEvent.Type = rsEventType;
+    aEvent.ResourceId = rxResourceId;
+    aEvent.ResourceObject = rxResourceObject;
+    try
+    {
+        NotifyListeners(aEvent);
+    }
+    catch (const lang::DisposedException&)
+    {
+    }
+}
+
+void ConfigurationControllerBroadcaster::DisposeAndClear()
+{
+    lang::EventObject aEvent;
+    aEvent.Source = mxConfigurationController;
+    while (!maListenerMap.empty())
+    {
+        ListenerMap::iterator iMap (maListenerMap.begin());
+        if (iMap == maListenerMap.end())
+            break;
+
+        // When the first vector is empty then remove it from the map.
+        if (iMap->second.empty())
+        {
+            maListenerMap.erase(iMap);
+            continue;
+        }
+        else
+        {
+            Reference<XConfigurationChangeListener> xListener (
+                iMap->second.front().mxListener );
+            if (xListener.is())
+            {
+                // Tell the listener that the configuration controller is
+                // being disposed and remove the listener (for all event
+                // types).
+                try
+                {
+                    RemoveListener(xListener);
+                    xListener->disposing(aEvent);
+                }
+                catch (const RuntimeException&)
+                {
+                    DBG_UNHANDLED_EXCEPTION("sd");
+                }
+            }
+            else
+            {
+                // Remove just this reference to the listener.
+                iMap->second.erase(iMap->second.begin());
+            }
+        }
+    }
+}
+
+} // end of namespace sd::framework
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */