1 files changed, 94 insertions, 0 deletions
diff --git a/vcl/source/app/vclevent.cxx b/vcl/source/app/vclevent.cxx
new file mode 100644
index 0000000000..9e8bdb7d1e
--- /dev/null
+++ b/vcl/source/app/vclevent.cxx
@@ -0,0 +1,94 @@
+/* -*- 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 <vcl/vclevent.hxx>
+#include <vcl/window.hxx>
+#include <vcl/menu.hxx>
+
+#include <vcleventlisteners.hxx>
+
+void VclEventListeners::Call( VclSimpleEvent& rEvent ) const
+{
+    if ( m_aListeners.empty() )
+        return;
+
+    // Copy the list, because this can be destroyed when calling a Link...
+    std::vector<Link<VclSimpleEvent&,void>> aCopy( m_aListeners );
+    std::vector<Link<VclSimpleEvent&,void>>::iterator aIter( aCopy.begin() );
+    std::vector<Link<VclSimpleEvent&,void>>::const_iterator aEnd( aCopy.end() );
+    m_updated = false;
+    if (VclWindowEvent* pWindowEvent = dynamic_cast<VclWindowEvent*>(&rEvent))
+    {
+        VclPtr<vcl::Window> xWin(pWindowEvent->GetWindow());
+        // checking mpWindowImpl to see if disposal is complete yet
+        while ( aIter != aEnd && (!xWin || xWin->mpWindowImpl) )
+        {
+            Link<VclSimpleEvent&,void> &rLink = *aIter;
+            // check this hasn't been removed in some re-enterancy scenario fdo#47368
+            // But only check if the list actually has been changed.
+            if( !m_updated || std::find(m_aListeners.begin(), m_aListeners.end(), rLink) != m_aListeners.end() )
+                rLink.Call( rEvent );
+            ++aIter;
+        }
+    }
+    else
+    {
+        while ( aIter != aEnd )
+        {
+            Link<VclSimpleEvent&,void> &rLink = *aIter;
+            if( !m_updated || std::find(m_aListeners.begin(), m_aListeners.end(), rLink) != m_aListeners.end() )
+                rLink.Call( rEvent );
+            ++aIter;
+        }
+    }
+}
+
+void VclEventListeners::addListener( const Link<VclSimpleEvent&,void>& rListener )
+{
+    m_aListeners.push_back( rListener );
+    m_updated = true;
+}
+
+void VclEventListeners::removeListener( const Link<VclSimpleEvent&,void>& rListener )
+{
+    std::erase(m_aListeners, rListener);
+    m_updated = true;
+}
+
+VclWindowEvent::VclWindowEvent( vcl::Window* pWin, VclEventId n, void* pDat ) : VclSimpleEvent(n)
+{
+    pWindow = pWin; pData = pDat;
+}
+
+VclWindowEvent::~VclWindowEvent() {}
+
+VclMenuEvent::VclMenuEvent( Menu* pM, VclEventId n, sal_uInt16 nPos )
+    : VclSimpleEvent(n), pMenu(pM), mnPos(nPos)
+{}
+
+VclMenuEvent::~VclMenuEvent()
+{}
+
+Menu* VclMenuEvent::GetMenu() const
+{
+    return pMenu;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */