1 files changed, 325 insertions, 0 deletions
diff --git a/forms/source/component/entrylisthelper.cxx b/forms/source/component/entrylisthelper.cxx
new file mode 100644
index 000000000..0f7810763
--- /dev/null
+++ b/forms/source/component/entrylisthelper.cxx
@@ -0,0 +1,325 @@
+/* -*- 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 "entrylisthelper.hxx"
+#include <FormComponent.hxx>
+
+#include <o3tl/safeint.hxx>
+#include <osl/diagnose.h>
+#include <comphelper/sequence.hxx>
+#include <comphelper/property.hxx>
+#include <com/sun/star/form/binding/XListEntryTypedSource.hpp>
+#include <algorithm>
+
+
+namespace frm
+{
+
+
+    using namespace ::com::sun::star::uno;
+    using namespace ::com::sun::star::lang;
+    using namespace ::com::sun::star::util;
+    using namespace ::com::sun::star::form::binding;
+
+    OEntryListHelper::OEntryListHelper( OControlModel& _rControlModel )
+        :m_rControlModel( _rControlModel )
+        ,m_aRefreshListeners( _rControlModel.getInstanceMutex() )
+    {
+    }
+
+
+    OEntryListHelper::OEntryListHelper( const OEntryListHelper& _rSource, OControlModel& _rControlModel )
+        :m_rControlModel( _rControlModel )
+        ,m_xListSource ( _rSource.m_xListSource  )
+        ,m_aStringItems( _rSource.m_aStringItems )
+        ,m_aRefreshListeners( _rControlModel.getInstanceMutex() )
+    {
+    }
+
+
+    OEntryListHelper::~OEntryListHelper( )
+    {
+    }
+
+
+    void SAL_CALL OEntryListHelper::setListEntrySource( const Reference< XListEntrySource >& _rxSource )
+    {
+        ControlModelLock aLock( m_rControlModel );
+
+        // disconnect from the current external list source
+        disconnectExternalListSource();
+
+        // and connect to the new one
+        if ( _rxSource.is() )
+            connectExternalListSource( _rxSource, aLock );
+    }
+
+
+    Reference< XListEntrySource > SAL_CALL OEntryListHelper::getListEntrySource(  )
+    {
+        return m_xListSource;
+    }
+
+
+    void SAL_CALL OEntryListHelper::entryChanged( const ListEntryEvent& _rEvent )
+    {
+        ControlModelLock aLock( m_rControlModel );
+
+        OSL_ENSURE( _rEvent.Source == m_xListSource,
+            "OEntryListHelper::entryChanged: where did this come from?" );
+        OSL_ENSURE( ( _rEvent.Position >= 0 ) && ( o3tl::make_unsigned(_rEvent.Position) < m_aStringItems.size() ),
+            "OEntryListHelper::entryChanged: invalid index!" );
+        OSL_ENSURE( _rEvent.Entries.getLength() == 1,
+            "OEntryListHelper::entryChanged: invalid string list!" );
+
+        if  (   ( _rEvent.Position >= 0 )
+            &&  ( o3tl::make_unsigned(_rEvent.Position) < m_aStringItems.size() )
+            &&  _rEvent.Entries.hasElements()
+            )
+        {
+            m_aStringItems[ _rEvent.Position ] = _rEvent.Entries[ 0 ];
+            if (m_aTypedItems.hasElements())
+                m_aTypedItems = Sequence<Any>();    // doesn't match anymore
+            stringItemListChanged( aLock );
+        }
+    }
+
+
+    void SAL_CALL OEntryListHelper::entryRangeInserted( const ListEntryEvent& _rEvent )
+    {
+        ControlModelLock aLock( m_rControlModel );
+
+        OSL_ENSURE( _rEvent.Source == m_xListSource,
+            "OEntryListHelper::entryRangeInserted: where did this come from?" );
+        OSL_ENSURE( ( _rEvent.Position > 0 ) && ( o3tl::make_unsigned(_rEvent.Position) < m_aStringItems.size() ) && _rEvent.Entries.hasElements(),
+            "OEntryListHelper::entryRangeRemoved: invalid count and/or position!" );
+
+        if  (   ( _rEvent.Position > 0 )
+            &&  ( o3tl::make_unsigned(_rEvent.Position) < m_aStringItems.size() )
+            &&  _rEvent.Entries.hasElements()
+            )
+        {
+            m_aStringItems.insert(m_aStringItems.begin() + _rEvent.Position, _rEvent.Entries.begin(), _rEvent.Entries.end());
+            if (m_aTypedItems.hasElements())
+                m_aTypedItems = Sequence<Any>();    // doesn't match anymore
+            stringItemListChanged( aLock );
+        }
+    }
+
+
+    void SAL_CALL OEntryListHelper::entryRangeRemoved( const ListEntryEvent& _rEvent )
+    {
+        ControlModelLock aLock( m_rControlModel );
+
+        OSL_ENSURE( _rEvent.Source == m_xListSource,
+            "OEntryListHelper::entryRangeRemoved: where did this come from?" );
+        OSL_ENSURE( ( _rEvent.Position > 0 ) && ( _rEvent.Count > 0 ) && ( _rEvent.Position + _rEvent.Count <= static_cast<sal_Int32>(m_aStringItems.size()) ),
+            "OEntryListHelper::entryRangeRemoved: invalid count and/or position!" );
+
+        if  (   !(( _rEvent.Position > 0 )
+            &&  ( _rEvent.Count > 0 )
+            &&  ( _rEvent.Position + _rEvent.Count <= static_cast<sal_Int32>(m_aStringItems.size()) ))
+            )
+            return;
+
+        m_aStringItems.erase(m_aStringItems.begin() + _rEvent.Position,
+                             m_aStringItems.begin() + _rEvent.Position + _rEvent.Count );
+        if (_rEvent.Position + _rEvent.Count <= m_aTypedItems.getLength())
+        {
+            Sequence<Any> aTmp( m_aTypedItems.getLength() - _rEvent.Count );
+            auto aTmpRange = asNonConstRange(aTmp);
+            sal_Int32 nStop = _rEvent.Position;
+            sal_Int32 i = 0;
+            for ( ; i < nStop; ++i)
+            {
+                aTmpRange[i] = m_aTypedItems[i];
+            }
+            nStop = aTmp.getLength();
+            for (sal_Int32 j = _rEvent.Position + _rEvent.Count; i < nStop; ++i, ++j)
+            {
+                aTmpRange[i] = m_aTypedItems[j];
+            }
+            m_aTypedItems = aTmp;
+        }
+        else if (m_aTypedItems.hasElements())
+        {
+            m_aTypedItems = Sequence<Any>();    // doesn't match anymore
+        }
+        stringItemListChanged( aLock );
+    }
+
+
+    void SAL_CALL OEntryListHelper::allEntriesChanged( const EventObject& _rEvent )
+    {
+        ControlModelLock aLock( m_rControlModel );
+
+        OSL_ENSURE( _rEvent.Source == m_xListSource,
+            "OEntryListHelper::allEntriesChanged: where did this come from?" );
+
+        if ( _rEvent.Source == m_xListSource )
+        {
+            impl_lock_refreshList( aLock );
+        }
+    }
+
+    // XRefreshable
+
+    void SAL_CALL OEntryListHelper::addRefreshListener(const Reference<XRefreshListener>& _rxListener)
+    {
+        if ( _rxListener.is() )
+            m_aRefreshListeners.addInterface( _rxListener );
+    }
+
+
+    void SAL_CALL OEntryListHelper::removeRefreshListener(const Reference<XRefreshListener>& _rxListener)
+    {
+        if ( _rxListener.is() )
+            m_aRefreshListeners.removeInterface( _rxListener );
+    }
+
+
+    void SAL_CALL OEntryListHelper::refresh()
+    {
+        {
+            ControlModelLock aLock( m_rControlModel );
+            impl_lock_refreshList( aLock );
+        }
+
+        EventObject aEvt( static_cast< XRefreshable* >( this ) );
+        m_aRefreshListeners.notifyEach( &XRefreshListener::refreshed, aEvt );
+    }
+
+
+    void OEntryListHelper::impl_lock_refreshList( ControlModelLock& _rInstanceLock )
+    {
+        if ( hasExternalListSource() )
+            obtainListSourceEntries( _rInstanceLock );
+        else
+            refreshInternalEntryList();
+    }
+
+
+    bool OEntryListHelper::handleDisposing( const EventObject& _rEvent )
+    {
+        if ( m_xListSource .is() && ( _rEvent.Source == m_xListSource ) )
+        {
+            disconnectExternalListSource( );
+            return true;
+        }
+        return false;
+    }
+
+
+    void OEntryListHelper::disposing( )
+    {
+        EventObject aEvt( static_cast< XRefreshable* >( this ) );
+        m_aRefreshListeners.disposeAndClear(aEvt);
+
+        if ( hasExternalListSource( ) )
+            disconnectExternalListSource( );
+    }
+
+
+    void OEntryListHelper::disconnectExternalListSource( )
+    {
+        if ( m_xListSource.is() )
+            m_xListSource->removeListEntryListener( this );
+
+        m_xListSource.clear();
+    }
+
+
+    void OEntryListHelper::connectExternalListSource( const Reference< XListEntrySource >& _rxSource, ControlModelLock& _rInstanceLock )
+    {
+        OSL_ENSURE( !hasExternalListSource(), "OEntryListHelper::connectExternalListSource: only to be called if no external source is active!" );
+        OSL_ENSURE( _rxSource.is(), "OEntryListHelper::connectExternalListSource: invalid list source!" );
+
+        // remember it
+        m_xListSource = _rxSource;
+
+        // initially fill our item list
+        if ( m_xListSource.is() )
+        {
+            // be notified when the list changes ...
+            m_xListSource->addListEntryListener( this );
+
+            obtainListSourceEntries( _rInstanceLock );
+        }
+    }
+
+
+    void OEntryListHelper::obtainListSourceEntries( ControlModelLock& _rInstanceLock )
+    {
+        Reference< XListEntryTypedSource > xTyped;
+        xTyped.set( m_xListSource, UNO_QUERY);
+        if (xTyped.is())
+        {
+            comphelper::sequenceToContainer( m_aStringItems, xTyped->getAllListEntriesTyped( m_aTypedItems));
+        }
+        else
+        {
+            comphelper::sequenceToContainer( m_aStringItems, m_xListSource->getAllListEntries());
+            if (m_aTypedItems.hasElements())
+                m_aTypedItems = Sequence<Any>();
+        }
+        stringItemListChanged( _rInstanceLock );
+    }
+
+
+    bool OEntryListHelper::convertNewListSourceProperty( Any& _rConvertedValue,
+        Any& _rOldValue, const Any& _rValue )
+    {
+        if ( hasExternalListSource() )
+            throw IllegalArgumentException( );
+            // TODO: error message
+
+        return ::comphelper::tryPropertyValue( _rConvertedValue, _rOldValue, _rValue, comphelper::containerToSequence(m_aStringItems) );
+    }
+
+
+    void OEntryListHelper::setNewStringItemList( const css::uno::Any& _rValue, ControlModelLock& _rInstanceLock )
+    {
+        OSL_PRECOND( !hasExternalListSource(), "OEntryListHelper::setNewStringItemList: this should never have survived convertNewListSourceProperty!" );
+        css::uno::Sequence<OUString> aTmp;
+        OSL_VERIFY( _rValue >>= aTmp );
+        comphelper::sequenceToContainer(m_aStringItems, aTmp);
+        if (m_aTypedItems.hasElements())
+            m_aTypedItems = Sequence<Any>();    // doesn't match anymore
+        stringItemListChanged( _rInstanceLock );
+    }
+
+
+    void OEntryListHelper::setNewTypedItemList( const css::uno::Any& _rValue, ControlModelLock& _rInstanceLock )
+    {
+        OSL_PRECOND( !hasExternalListSource(), "OEntryListHelper::setNewTypedItemList: this should never have survived convertNewListSourceProperty!" );
+        if (!(_rValue >>= m_aTypedItems ))
+        {
+            OSL_VERIFY(false);
+            if (m_aTypedItems.hasElements())
+                m_aTypedItems = Sequence<Any>();    // doesn't match anymore
+        }
+        // Sets both properties, assuming that TypedItemList belongs to StringItemList.
+        stringItemListChanged( _rInstanceLock );
+    }
+
+
+}   // namespace frm
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */