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, 227 insertions, 0 deletions

diff --git a/linguistic/source/iprcache.cxx b/linguistic/source/iprcache.cxx
new file mode 100644
index 000000000..2b82e5684
--- /dev/null
+++ b/linguistic/source/iprcache.cxx
@@ -0,0 +1,227 @@
+/* -*- 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 <iprcache.hxx>
+#include <linguistic/misc.hxx>
+
+#include <com/sun/star/linguistic2/DictionaryListEventFlags.hpp>
+#include <osl/mutex.hxx>
+#include <unotools/linguprops.hxx>
+
+using namespace osl;
+using namespace com::sun::star;
+using namespace com::sun::star::beans;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::linguistic2;
+
+
+namespace linguistic
+{
+
+
+#define NUM_FLUSH_PROPS     6
+
+const struct
+{
+    OUString        aPropName;
+    sal_Int32       nPropHdl;
+} aFlushProperties[ NUM_FLUSH_PROPS ] =
+{
+    { UPN_IS_USE_DICTIONARY_LIST,         UPH_IS_USE_DICTIONARY_LIST },
+    { UPN_IS_IGNORE_CONTROL_CHARACTERS,   UPH_IS_IGNORE_CONTROL_CHARACTERS },
+    { UPN_IS_SPELL_UPPER_CASE,            UPH_IS_SPELL_UPPER_CASE },
+    { UPN_IS_SPELL_WITH_DIGITS,           UPH_IS_SPELL_WITH_DIGITS },
+    { UPN_IS_SPELL_CAPITALIZATION,        UPH_IS_SPELL_CAPITALIZATION }
+};
+
+
+static void lcl_AddAsPropertyChangeListener(
+        const Reference< XPropertyChangeListener >& xListener,
+        Reference< XLinguProperties > const &rPropSet )
+{
+    if (xListener.is() && rPropSet.is())
+    {
+        for (auto& aFlushProperty : aFlushProperties)
+        {
+            rPropSet->addPropertyChangeListener(
+                aFlushProperty.aPropName, xListener );
+        }
+    }
+}
+
+
+static void lcl_RemoveAsPropertyChangeListener(
+        const Reference< XPropertyChangeListener >& xListener,
+        Reference< XLinguProperties > const &rPropSet )
+{
+    if (xListener.is() && rPropSet.is())
+    {
+        for (auto& aFlushProperty : aFlushProperties)
+        {
+            rPropSet->removePropertyChangeListener(
+                    aFlushProperty.aPropName, xListener );
+        }
+    }
+}
+
+
+static bool lcl_IsFlushProperty( sal_Int32 nHandle )
+{
+    int i;
+    for (i = 0;  i < NUM_FLUSH_PROPS;  ++i)
+    {
+        if (nHandle == aFlushProperties[i].nPropHdl)
+            break;
+    }
+    return i < NUM_FLUSH_PROPS;
+}
+
+
+void FlushListener::SetDicList( Reference<XSearchableDictionaryList> const &rDL )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (xDicList != rDL)
+    {
+        if (xDicList.is())
+            xDicList->removeDictionaryListEventListener( this );
+
+        xDicList = rDL;
+        if (xDicList.is())
+            xDicList->addDictionaryListEventListener( this, false );
+    }
+}
+
+
+void FlushListener::SetPropSet( Reference< XLinguProperties > const &rPS )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (xPropSet != rPS)
+    {
+        if (xPropSet.is())
+            lcl_RemoveAsPropertyChangeListener( this, xPropSet );
+
+        xPropSet = rPS;
+        if (xPropSet.is())
+            lcl_AddAsPropertyChangeListener( this, xPropSet );
+    }
+}
+
+
+void SAL_CALL FlushListener::disposing( const EventObject& rSource )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (xDicList.is()  &&  rSource.Source == xDicList)
+    {
+        xDicList->removeDictionaryListEventListener( this );
+        xDicList = nullptr;    //! release reference
+    }
+    if (xPropSet.is()  &&  rSource.Source == xPropSet)
+    {
+        lcl_RemoveAsPropertyChangeListener( this, xPropSet );
+        xPropSet = nullptr;    //! release reference
+    }
+}
+
+
+void SAL_CALL FlushListener::processDictionaryListEvent(
+            const DictionaryListEvent& rDicListEvent )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (rDicListEvent.Source != xDicList)
+        return;
+
+    sal_Int16 nEvt = rDicListEvent.nCondensedEvent;
+    sal_Int16 const nFlushFlags =
+            DictionaryListEventFlags::ADD_NEG_ENTRY     |
+            DictionaryListEventFlags::DEL_POS_ENTRY     |
+            DictionaryListEventFlags::ACTIVATE_NEG_DIC  |
+            DictionaryListEventFlags::DEACTIVATE_POS_DIC;
+    bool bFlush = 0 != (nEvt & nFlushFlags);
+
+    if (bFlush)
+        mrSpellCache.Flush();
+}
+
+
+void SAL_CALL FlushListener::propertyChange(
+            const PropertyChangeEvent& rEvt )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (rEvt.Source == xPropSet)
+    {
+        bool bFlush = lcl_IsFlushProperty( rEvt.PropertyHandle );
+
+        if (bFlush)
+            mrSpellCache.Flush();
+    }
+}
+
+
+SpellCache::SpellCache()
+{
+    mxFlushLstnr = new FlushListener( *this );
+    Reference<XSearchableDictionaryList> aDictionaryList(GetDictionaryList());
+    mxFlushLstnr->SetDicList( aDictionaryList ); //! after reference is established
+    Reference<XLinguProperties> aPropertySet(GetLinguProperties());
+    mxFlushLstnr->SetPropSet( aPropertySet );    //! after reference is established
+}
+
+SpellCache::~SpellCache()
+{
+    Reference<XSearchableDictionaryList>  aEmptyList;
+    Reference<XLinguProperties>     aEmptySet;
+    mxFlushLstnr->SetDicList( aEmptyList );
+    mxFlushLstnr->SetPropSet( aEmptySet );
+}
+
+void SpellCache::Flush()
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+    // clear word list
+    LangWordList_t().swap(aWordLists);
+}
+
+bool SpellCache::CheckWord( const OUString& rWord, LanguageType nLang )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+    WordList_t &rList = aWordLists[ nLang ];
+    const WordList_t::const_iterator aIt = rList.find( rWord );
+    return aIt != rList.end();
+}
+
+void SpellCache::AddWord( const OUString& rWord, LanguageType nLang )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+    WordList_t & rList = aWordLists[ nLang ];
+    // occasional clean-up...
+    if (rList.size() > 500)
+        rList.clear();
+    rList.insert( rWord );
+}
+
+}   // namespace linguistic
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */