1 files changed, 180 insertions, 0 deletions
diff --git a/sc/source/core/tool/chartlock.cxx b/sc/source/core/tool/chartlock.cxx
new file mode 100644
index 000000000..daeecbbc2
--- /dev/null
+++ b/sc/source/core/tool/chartlock.cxx
@@ -0,0 +1,180 @@
+/* -*- 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 .
+ */
+
+#include <svx/svditer.hxx>
+#include <svx/svdoole2.hxx>
+#include <svx/svdpage.hxx>
+#include <tools/diagnose_ex.h>
+
+#include <chartlock.hxx>
+#include <document.hxx>
+#include <drwlayer.hxx>
+
+#include <com/sun/star/embed/XEmbeddedObject.hpp>
+#include <com/sun/star/embed/XComponentSupplier.hpp>
+#include <com/sun/star/frame/XModel.hpp>
+
+using namespace com::sun::star;
+using ::com::sun::star::uno::Reference;
+using ::com::sun::star::uno::WeakReference;
+
+#define SC_CHARTLOCKTIMEOUT 660
+
+namespace
+{
+
+std::vector< WeakReference< frame::XModel > > lcl_getAllLivingCharts( ScDocument* pDoc )
+{
+    std::vector< WeakReference< frame::XModel > > aRet;
+    if( !pDoc )
+        return aRet;
+    ScDrawLayer* pDrawLayer = pDoc->GetDrawLayer();
+    if (!pDrawLayer)
+        return aRet;
+
+    for (SCTAB nTab=0; nTab<=pDoc->GetMaxTableNumber(); nTab++)
+    {
+        if (pDoc->HasTable(nTab))
+        {
+            SdrPage* pPage = pDrawLayer->GetPage(static_cast<sal_uInt16>(nTab));
+            OSL_ENSURE(pPage,"Page ?");
+
+            SdrObjListIter aIter( pPage, SdrIterMode::DeepNoGroups );
+            SdrObject* pObject = aIter.Next();
+            while (pObject)
+            {
+                if( ScDocument::IsChart( pObject ) )
+                {
+                    uno::Reference< embed::XEmbeddedObject > xIPObj = static_cast<SdrOle2Obj*>(pObject)->GetObjRef();
+                    uno::Reference< embed::XComponentSupplier > xCompSupp = xIPObj;
+                    if( xCompSupp.is())
+                    {
+                        Reference< frame::XModel > xModel( xCompSupp->getComponent(), uno::UNO_QUERY );
+                        if( xModel.is() )
+                            aRet.emplace_back(xModel );
+                    }
+                }
+                pObject = aIter.Next();
+            }
+        }
+    }
+    return aRet;
+}
+
+}//end anonymous namespace
+
+// ScChartLockGuard
+ScChartLockGuard::ScChartLockGuard( ScDocument* pDoc ) :
+    maChartModels( lcl_getAllLivingCharts( pDoc ) )
+{
+    for( const auto& rxChartModel : maChartModels )
+    {
+        try
+        {
+            Reference< frame::XModel > xModel( rxChartModel );
+            if( xModel.is())
+                xModel->lockControllers();
+        }
+        catch ( uno::Exception& )
+        {
+            TOOLS_WARN_EXCEPTION( "sc", "Unexpected exception in ScChartLockGuard");
+        }
+    }
+}
+
+ScChartLockGuard::~ScChartLockGuard()
+{
+    for( const auto& rxChartModel : maChartModels )
+    {
+        try
+        {
+            Reference< frame::XModel > xModel( rxChartModel );
+            if( xModel.is())
+                xModel->unlockControllers();
+        }
+        catch ( uno::Exception& )
+        {
+            TOOLS_WARN_EXCEPTION( "sc", "Unexpected exception in ScChartLockGuard");
+        }
+    }
+}
+
+void ScChartLockGuard::AlsoLockThisChart( const Reference< frame::XModel >& xModel )
+{
+    if(!xModel.is())
+        return;
+
+    WeakReference< frame::XModel > xWeakModel(xModel);
+
+    std::vector< WeakReference< frame::XModel > >::iterator aFindIter(
+            ::std::find( maChartModels.begin(), maChartModels.end(), xWeakModel ) );
+
+    if( aFindIter == maChartModels.end() )
+    {
+        try
+        {
+            xModel->lockControllers();
+            maChartModels.emplace_back(xModel );
+        }
+        catch ( uno::Exception& )
+        {
+            TOOLS_WARN_EXCEPTION( "sc", "Unexpected exception in ScChartLockGuard");
+        }
+    }
+}
+
+// ScTemporaryChartLock
+ScTemporaryChartLock::ScTemporaryChartLock( ScDocument* pDocP ) :
+    mpDoc( pDocP ), maTimer("ScTemporaryChartLock maTimer")
+{
+    maTimer.SetTimeout( SC_CHARTLOCKTIMEOUT );
+    maTimer.SetInvokeHandler( LINK( this, ScTemporaryChartLock, TimeoutHdl ) );
+}
+
+ScTemporaryChartLock::~ScTemporaryChartLock()
+{
+    mpDoc = nullptr;
+    StopLocking();
+}
+
+void ScTemporaryChartLock::StartOrContinueLocking()
+{
+    if (!mapScChartLockGuard)
+        mapScChartLockGuard.reset( new ScChartLockGuard(mpDoc) );
+    maTimer.Start();
+}
+
+void ScTemporaryChartLock::StopLocking()
+{
+    maTimer.Stop();
+    mapScChartLockGuard.reset();
+}
+
+void ScTemporaryChartLock::AlsoLockThisChart( const Reference< frame::XModel >& xModel )
+{
+    if (mapScChartLockGuard)
+        mapScChartLockGuard->AlsoLockThisChart( xModel );
+}
+
+IMPL_LINK_NOARG(ScTemporaryChartLock, TimeoutHdl, Timer *, void)
+{
+    mapScChartLockGuard.reset();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */