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+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SD_SOURCE_UI_FRAMEWORK_MODULE_CENTERVIEWFOCUSMODULE_HXX
+#define INCLUDED_SD_SOURCE_UI_FRAMEWORK_MODULE_CENTERVIEWFOCUSMODULE_HXX
+
+#include <MutexOwner.hxx>
+
+#include <com/sun/star/drawing/framework/XConfigurationChangeListener.hpp>
+#include <cppuhelper/compbase.hxx>
+
+namespace com::sun::star::drawing::framework { class XConfigurationController; }
+namespace com::sun::star::frame { class XController; }
+
+namespace sd {
+
+class ViewShellBase;
+
+}
+
+namespace sd::framework {
+
+typedef ::cppu::WeakComponentImplHelper <
+ css::drawing::framework::XConfigurationChangeListener
+ > CenterViewFocusModuleInterfaceBase;
+
+/** This module waits for new views to be created for the center pane and
+ then moves the center view to the top most place on the shell stack. As
+ we are moving away from the shell stack this module may become obsolete
+ or has to be modified.
+*/
+class CenterViewFocusModule
+ : private sd::MutexOwner,
+ public CenterViewFocusModuleInterfaceBase
+{
+public:
+ explicit CenterViewFocusModule (
+ css::uno::Reference<css::frame::XController> const & rxController);
+ virtual ~CenterViewFocusModule() override;
+
+ virtual void SAL_CALL disposing() override;
+
+ // XConfigurationChangeListener
+
+ virtual void SAL_CALL notifyConfigurationChange (
+ const css::drawing::framework::ConfigurationChangeEvent& rEvent) override;
+
+ // XEventListener
+
+ virtual void SAL_CALL disposing (
+ const css::lang::EventObject& rEvent) override;
+
+private:
+ class ViewShellContainer;
+
+ bool mbValid;
+ css::uno::Reference<css::drawing::framework::XConfigurationController>
+ mxConfigurationController;
+ ViewShellBase* mpBase;
+ /** This flag indicates whether in the last configuration change cycle a
+ new view has been created and thus the center view has to be moved
+ to the top of the shell stack.
+ */
+ bool mbNewViewCreated;
+
+ /** At the end of an update of the current configuration this method
+ handles a new view in the center pane by moving the associated view
+ shell to the top of the shell stack.
+ */
+ void HandleNewView(
+ const css::uno::Reference<css::drawing::framework::XConfiguration>& rxConfiguration);
+};
+
+} // end of namespace sd::framework
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */