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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 .
+ */
+
+#pragma once
+
+#include "ViewShellManager.hxx"
+
+#include <tools/link.hxx>
+#include <svl/lstner.hxx>
+#include <vcl/vclptr.hxx>
+
+class VclWindowEvent;
+class FmFormShell;
+namespace vcl
+{
+class Window;
+}
+
+namespace sd::tools
+{
+class EventMultiplexerEvent;
+}
+
+namespace sd
+{
+class ViewShellBase;
+
+/** This simple class is responsible for putting the form shell above or
+ below the main view shell on the shell stack maintained by the ObjectBarManager.
+
+ The form shell is moved above the view shell when the form shell is
+ activated, i.e. the FormControlActivated handler is called.
+
+ It is moved below the view shell when the main window of the
+ main view shell is focused.
+
+ The form shell is created and destroyed by the ViewShellManager by using
+ a factory object provided by the FormShellManager.
+*/
+class FormShellManager : public SfxListener
+{
+public:
+ FormShellManager(ViewShellBase& rBase);
+ virtual ~FormShellManager() override;
+
+ /** Typically called by a ShellFactory. It tells the
+ FormShellManager which form shell to manage.
+ @param pFormShell
+ This may be <NULL/> to disconnect the ViewShellManager from the
+ form shell.
+ */
+ void SetFormShell(FmFormShell* pFormShell);
+
+ /** Return the form shell last set with SetFormShell().
+ @return
+ The result may be <NULL/> when the SetFormShell() method has not
+ yet been called or was last called with <NULL/>.
+ */
+ FmFormShell* GetFormShell() { return mpFormShell; }
+
+private:
+ ViewShellBase& mrBase;
+
+ /** Ownership of the form shell lies with the ViewShellManager. This
+ reference is kept so that the FormShellManager can detect when a new
+ form shell is passed to SetFormShell().
+ */
+ FmFormShell* mpFormShell;
+
+ /** Remember whether the form shell is currently above or below the main
+ view shell.
+ */
+ bool mbFormShellAboveViewShell;
+
+ /** The factory is remembered so that it removed from the
+ ViewShellManager when the FormShellManager is destroyed.
+ */
+ ViewShellManager::SharedShellFactory mpSubShellFactory;
+
+ bool mbIsMainViewChangePending;
+
+ VclPtr<vcl::Window> mpMainViewShellWindow;
+
+ /** Register at window of center pane and at the form shell that
+ represents the form tool bar. The former informs this manager about
+ the deselection of the form shell. The later informs about its
+ selection.
+ */
+ void RegisterAtCenterPane();
+
+ /** Unregister the listeners that were registered in
+ RegisterAtCenterPane().
+ */
+ void UnregisterAtCenterPane();
+
+ /** This call back is called by the application window (among others)
+ when the window gets the focus. In this case the form shell is
+ moved to the bottom of the shell stack.
+ */
+ DECL_LINK(WindowEventHandler, VclWindowEvent&, void);
+
+ /** This call back is called when view in the center pane is replaced.
+ When this happens then we unregister at the window of the old and
+ register at the window of the new shell.
+ */
+ DECL_LINK(ConfigurationUpdateHandler, ::sd::tools::EventMultiplexerEvent&, void);
+
+ /** This call back is called by the form shell when it gets the focus.
+ In this case the form shell is moved to the top of the shell stack.
+ */
+ DECL_LINK(FormControlActivated, LinkParamNone*, void);
+
+ /** This method is called by the form shell when that is destroyed. It
+ acts as a last resort against referencing a dead form shell. With
+ the factory working properly this method should not be necessary
+ (and may be removed in the future.)
+ */
+ virtual void Notify(SfxBroadcaster& rBC, const SfxHint& rHint) override;
+};
+
+} // end of namespace sd
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */