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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_SVX_SOURCE_ACCESSIBILITY_ACCESSIBLEEMPTYEDITSOURCE_HXX
+#define INCLUDED_SVX_SOURCE_ACCESSIBILITY_ACCESSIBLEEMPTYEDITSOURCE_HXX
+
+#include <svl/SfxBroadcaster.hxx>
+#include <svl/lstner.hxx>
+
+#include <memory>
+#include <editeng/unoedsrc.hxx>
+
+class SdrObject;
+class SdrView;
+class OutputDevice;
+
+namespace accessibility
+{
+ /** Proxy edit source for shapes without text
+
+ Extracted from old SvxDummyEditSource
+ */
+ class AccessibleEmptyEditSource : public SvxEditSource, public SfxListener, public SfxBroadcaster
+ {
+ public:
+ /** Create proxy edit source for shapes without text
+
+ Since the views don't broadcast their dying, make sure that
+ this object gets destroyed if the view becomes invalid
+
+ The window is necessary, since our views can display on multiple windows
+
+ Make sure you only create such an object if the shape _really_
+ does not contain text.
+ */
+ AccessibleEmptyEditSource( SdrObject& rObj, SdrView& rView, const OutputDevice& rViewWindow );
+ virtual ~AccessibleEmptyEditSource() override;
+
+ // from the SvxEditSource interface
+ SvxTextForwarder* GetTextForwarder() override;
+ SvxViewForwarder* GetViewForwarder() override;
+
+ std::unique_ptr<SvxEditSource> Clone() const override;
+
+ // this method internally switches from empty to proxy mode,
+ // creating an SvxTextEditSource for the functionality.
+ SvxEditViewForwarder* GetEditViewForwarder( bool bCreate = false ) override;
+
+ void UpdateData() override;
+ SfxBroadcaster& GetBroadcaster() const override;
+
+ // from the SfxListener interface
+ void Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) override;
+
+ private:
+ void Switch2ProxyEditSource();
+
+ /** Pointer to edit source implementation. This is switched on
+ a GetEditViewForwarder( true ) call, to actually create a
+ SvxTextEditSource.
+
+ @dyn
+ */
+ std::unique_ptr< SvxEditSource > mpEditSource;
+
+ SdrObject& mrObj;
+ SdrView& mrView;
+ const OutputDevice& mrViewWindow;
+
+ bool mbEditSourceEmpty;
+ };
+
+} // namespace accessibility
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */