Related: #i120498# Enhanced Undo/Redo and user experience...

when editing texts in graphic objects and/or tables

(cherry picked from commit a096725779b210c7a2706e72596fd7c80e049fdd)

Conflicts:
editeng/inc/editeng/editeng.hxx
editeng/inc/editeng/editund2.hxx
editeng/inc/editeng/outliner.hxx
editeng/source/editeng/editundo.cxx
editeng/source/editeng/impedit.hxx
editeng/source/outliner/outliner.cxx
sd/source/core/undo/undomanager.cxx
sd/source/ui/view/drviewse.cxx
svx/Library_svxcore.mk
svx/Package_inc.mk
svx/inc/svx/svdedxv.hxx
svx/source/svdraw/svdedxv.cxx

Change-Id: I40e3ef2dff681f9b6f2f6b5d35507071f8110533

Comment unused variable pNewEditUndoManager to silence the compiler

(cherry picked from commit 568655083af7830e7b9edf56ef862ddf9a99003b)

Change-Id: Ib7179ee6c34ce03a75942978831c3a55968f161f

Removed unused variable

(cherry picked from commit 0bbde4414badfd40234de4a4c9f750194f5d1d5e)

Change-Id: I39e7f25426e8e7d1367102d603b0f6c84d96622f

1 files changed, 109 insertions, 0 deletions

diff --git a/svx/source/svdraw/sdrundomanager.cxx b/svx/source/svdraw/sdrundomanager.cxx
new file mode 100644
index 000000000000..88e0c6c6c5d0
--- /dev/null
+++ b/svx/source/svdraw/sdrundomanager.cxx
@@ -0,0 +1,109 @@
+/*
+ * 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 <svx/sdrundomanager.hxx>
+
+//////////////////////////////////////////////////////////////////////////////
+
+SdrUndoManager::SdrUndoManager(sal_uInt16 nMaxUndoActionCount)
+:   EditUndoManager(nMaxUndoActionCount),
+    maEndTextEditHdl(),
+    mpLastUndoActionBeforeTextEdit(0)
+{
+}
+
+SdrUndoManager::~SdrUndoManager()
+{
+}
+
+sal_Bool SdrUndoManager::Undo()
+{
+    sal_Bool bRetval(sal_False);
+
+    if(maEndTextEditHdl.IsSet())
+    {
+        // we are in text edit mode
+        if(GetUndoActionCount() && mpLastUndoActionBeforeTextEdit != GetUndoAction(0))
+        {
+            // there is an undo action for text edit, trigger it
+            bRetval = EditUndoManager::Undo();
+        }
+        else
+        {
+            // no more text edit undo, end text edit
+            maEndTextEditHdl.Call(this);
+        }
+    }
+
+    if(!bRetval && GetUndoActionCount())
+    {
+        // no undo triggered up to now, trigger local one
+        bRetval = SfxUndoManager::Undo();
+    }
+
+    return bRetval;
+}
+
+sal_Bool SdrUndoManager::Redo()
+{
+    sal_Bool bRetval(sal_False);
+
+    if(maEndTextEditHdl.IsSet())
+    {
+        // we are in text edit mode
+        bRetval = EditUndoManager::Redo();
+    }
+
+    if(!bRetval)
+    {
+        // no redo triggered up to now, trigger local one
+        bRetval = SfxUndoManager::Redo();
+    }
+
+    return bRetval;
+}
+
+void SdrUndoManager::SetEndTextEditHdl(const Link& rLink)
+{
+    maEndTextEditHdl = rLink;
+
+    if(maEndTextEditHdl.IsSet())
+    {
+        // text edit start, remember last non-textedit action for later cleanup
+        mpLastUndoActionBeforeTextEdit = GetUndoActionCount() ? GetUndoAction(0) : 0;
+    }
+    else
+    {
+        // text edit ends, pop all textedit actions up to the remembered non-textedit action from the start
+        // to set back the UndoManager to the state before text edit started. If that action is already gone
+        // (due to being removed from the undo stack in the meantime), all need to be removed anyways
+        while(GetUndoActionCount() && mpLastUndoActionBeforeTextEdit != GetUndoAction(0))
+        {
+            RemoveLastUndoAction();
+        }
+
+        // urgently needed: RemoveLastUndoAction does NOT correct the Redo stack by itself (!)
+        ClearRedo();
+
+        // forget marker again
+        mpLastUndoActionBeforeTextEdit = 0;
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// eof