1 files changed, 99 insertions, 0 deletions
diff --git a/slideshow/source/engine/unoviewcontainer.cxx b/slideshow/source/engine/unoviewcontainer.cxx
new file mode 100644
index 0000000000..69537433ae
--- /dev/null
+++ b/slideshow/source/engine/unoviewcontainer.cxx
@@ -0,0 +1,99 @@
+/* -*- 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 <unoviewcontainer.hxx>
+
+#include <osl/diagnose.h>
+
+#include <algorithm>
+
+
+using namespace ::com::sun::star;
+
+
+namespace slideshow::internal
+{
+        UnoViewContainer::UnoViewContainer() :
+            maViews()
+        {
+        }
+
+        bool UnoViewContainer::addView( const UnoViewSharedPtr& rView )
+        {
+            // check whether same view is already added
+
+            uno::Reference< presentation::XSlideShowView > rTmpView = rView->getUnoView();
+            // already added?
+            if( ::std::any_of( maViews.begin(),
+                               maViews.end(),
+                               [&rTmpView]( const UnoViewSharedPtr& pView )
+                               { return rTmpView == pView->getUnoView(); } ) )
+            {
+                // yes, nothing to do
+                return false;
+            }
+
+            // add locally
+            maViews.push_back( rView );
+
+            return true;
+        }
+
+        UnoViewSharedPtr UnoViewContainer::removeView( const uno::Reference< presentation::XSlideShowView >& xView )
+        {
+            // check whether same view is already added
+            const UnoViewVector::iterator aEnd( maViews.end() );
+            UnoViewVector::iterator aIter;
+
+            // added in the first place?
+            if( (aIter=::std::find_if( maViews.begin(),
+                                       aEnd,
+                                       [&xView]( const UnoViewSharedPtr& pView )
+                                       { return xView == pView->getUnoView(); } )) == aEnd )
+            {
+                // nope, nothing to do
+                return UnoViewSharedPtr();
+            }
+
+            OSL_ENSURE(
+                ::std::count_if(
+                    maViews.begin(),
+                    aEnd,
+                    [&xView]( const UnoViewSharedPtr& pView )
+                    { return xView == pView->getUnoView(); } ) == 1,
+                "UnoViewContainer::removeView(): View was added multiple times" );
+
+            UnoViewSharedPtr pView( *aIter );
+
+            // actually erase from container
+            maViews.erase( aIter );
+
+            return pView;
+        }
+
+        void UnoViewContainer::dispose()
+        {
+            for( const auto& pView : maViews )
+                pView->_dispose();
+            maViews.clear();
+        }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */