1 files changed, 127 insertions, 0 deletions
diff --git a/sdext/source/presenter/PresenterCurrentSlideObserver.cxx b/sdext/source/presenter/PresenterCurrentSlideObserver.cxx
new file mode 100644
index 000000000..b7769219c
--- /dev/null
+++ b/sdext/source/presenter/PresenterCurrentSlideObserver.cxx
@@ -0,0 +1,127 @@
+/* -*- 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 "PresenterCurrentSlideObserver.hxx"
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+
+namespace sdext::presenter {
+
+//===== PresenterCurrentSlideObserver =========================================
+
+PresenterCurrentSlideObserver::PresenterCurrentSlideObserver (
+    const ::rtl::Reference<PresenterController>& rxPresenterController,
+    const Reference<presentation::XSlideShowController>& rxSlideShowController)
+    : PresenterCurrentSlideObserverInterfaceBase(m_aMutex),
+      mpPresenterController(rxPresenterController),
+      mxSlideShowController(rxSlideShowController)
+{
+    if( mpPresenterController.is() )
+    {
+        mpPresenterController->addEventListener(this);
+    }
+
+    if( mxSlideShowController.is() )
+    {
+        // Listen for events from the slide show controller.
+        mxSlideShowController->addSlideShowListener(static_cast<XSlideShowListener*>(this));
+    }
+}
+
+PresenterCurrentSlideObserver::~PresenterCurrentSlideObserver()
+{
+}
+
+void SAL_CALL PresenterCurrentSlideObserver::disposing()
+{
+    // Disconnect form the slide show controller.
+    if(mxSlideShowController.is())
+    {
+        mxSlideShowController->removeSlideShowListener(static_cast<XSlideShowListener*>(this));
+        mxSlideShowController = nullptr;
+    }
+}
+
+//----- XSlideShowListener ----------------------------------------------------
+
+void SAL_CALL PresenterCurrentSlideObserver::beginEvent (
+    const Reference<animations::XAnimationNode>&)
+{}
+
+void SAL_CALL PresenterCurrentSlideObserver::endEvent (
+    const Reference<animations::XAnimationNode>&)
+{}
+
+void SAL_CALL PresenterCurrentSlideObserver::repeat (
+    const css::uno::Reference<css::animations::XAnimationNode>&,
+    sal_Int32)
+{}
+
+void SAL_CALL PresenterCurrentSlideObserver::paused()
+{
+}
+
+void SAL_CALL PresenterCurrentSlideObserver::resumed()
+{
+}
+
+void SAL_CALL PresenterCurrentSlideObserver::slideEnded (sal_Bool bReverse)
+{
+    // Determine whether the new current slide (the one after the one that
+    // just ended) is the slide past the last slide in the presentation,
+    // i.e. the one that says something like "click to end presentation...".
+    if (mxSlideShowController.is() && !bReverse)
+        if (mxSlideShowController->getNextSlideIndex() < 0)
+            if( mpPresenterController.is() )
+                mpPresenterController->UpdateCurrentSlide(+1);
+}
+
+void SAL_CALL PresenterCurrentSlideObserver::hyperLinkClicked (const OUString &)
+{
+}
+
+void SAL_CALL PresenterCurrentSlideObserver::slideTransitionStarted()
+{
+    if( mpPresenterController.is() )
+        mpPresenterController->UpdateCurrentSlide(0);
+}
+
+void SAL_CALL PresenterCurrentSlideObserver::slideTransitionEnded()
+{
+}
+
+void SAL_CALL PresenterCurrentSlideObserver::slideAnimationsEnded()
+{
+}
+
+//----- XEventListener --------------------------------------------------------
+
+void SAL_CALL PresenterCurrentSlideObserver::disposing (
+    const lang::EventObject& rEvent)
+{
+    if (rEvent.Source == Reference<XInterface>(static_cast<XWeak*>(mpPresenterController.get())))
+        dispose();
+    else if (rEvent.Source == mxSlideShowController)
+        mxSlideShowController = nullptr;
+}
+
+} // end of namespace ::sdext::presenter
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */