Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 93 insertions, 0 deletions

diff --git a/svx/source/accessibility/AccessibleEmptyEditSource.hxx b/svx/source/accessibility/AccessibleEmptyEditSource.hxx
new file mode 100644
index 000000000..6cfceeda4
--- /dev/null
+++ b/svx/source/accessibility/AccessibleEmptyEditSource.hxx
@@ -0,0 +1,93 @@
+/* -*- 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: */