1 files changed, 108 insertions, 0 deletions
diff --git a/vcl/source/window/mnemonicengine.cxx b/vcl/source/window/mnemonicengine.cxx
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+++ b/vcl/source/window/mnemonicengine.cxx
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+/* -*- 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 <vcl/mnemonicengine.hxx>
+
+#include <vcl/i18nhelp.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/event.hxx>
+#include <vcl/settings.hxx>
+
+namespace vcl
+{
+    struct MnemonicEngine_Data
+    {
+        IMnemonicEntryList& rEntryList;
+
+        explicit MnemonicEngine_Data( IMnemonicEntryList& _rEntryList )
+            :rEntryList( _rEntryList )
+        {
+        }
+    };
+
+    namespace
+    {
+        const void* lcl_getEntryForMnemonic( IMnemonicEntryList const & _rEntryList, sal_Unicode _cMnemonic, bool& _rbAmbiguous )
+        {
+            _rbAmbiguous = false;
+
+            const vcl::I18nHelper& rI18nHelper = Application::GetSettings().GetUILocaleI18nHelper();
+
+            OUString sEntryText;
+            const void* pSearchEntry = _rEntryList.FirstSearchEntry( sEntryText );
+
+            const void* pFirstFoundEntry = nullptr;
+            bool bCheckingAmbiguity = false;
+            const void* pStartedWith = pSearchEntry;
+            while ( pSearchEntry )
+            {
+                if ( rI18nHelper.MatchMnemonic( sEntryText, _cMnemonic ) )
+                {
+                    if ( bCheckingAmbiguity )
+                    {
+                        // that's the second (at least) entry with this mnemonic
+                        _rbAmbiguous = true;
+                        return pFirstFoundEntry;
+                    }
+
+                    pFirstFoundEntry = pSearchEntry;
+                    bCheckingAmbiguity = true;
+                }
+
+                pSearchEntry = _rEntryList.NextSearchEntry( pSearchEntry, sEntryText );
+                if ( pSearchEntry == pStartedWith )
+                    break;
+            }
+
+            return pFirstFoundEntry;
+        }
+    }
+
+    MnemonicEngine::MnemonicEngine( IMnemonicEntryList& _rEntryList )
+        :m_pData( new MnemonicEngine_Data( _rEntryList ) )
+    {
+    }
+
+    bool MnemonicEngine::HandleKeyEvent( const KeyEvent& _rKEvt )
+    {
+        bool bAccelKey = _rKEvt.GetKeyCode().IsMod2();
+        if ( !bAccelKey )
+            return false;
+
+        sal_Unicode cChar = _rKEvt.GetCharCode();
+        bool bAmbiguous = false;
+        const void* pEntry = lcl_getEntryForMnemonic( m_pData->rEntryList, cChar, bAmbiguous );
+        if ( !pEntry )
+            return false;
+
+        m_pData->rEntryList.SelectSearchEntry( pEntry );
+        if ( !bAmbiguous )
+            m_pData->rEntryList.ExecuteSearchEntry( pEntry );
+
+        // handled
+        return true;
+    }
+
+    MnemonicEngine::~MnemonicEngine()
+    {
+    }
+
+} // namespace vcl
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */