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, 89 insertions, 0 deletions

diff --git a/include/svtools/templatefoldercache.hxx b/include/svtools/templatefoldercache.hxx
new file mode 100644
index 000000000..a7bcb785f
--- /dev/null
+++ b/include/svtools/templatefoldercache.hxx
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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 .
+ */
+
+#pragma once
+
+#include <config_options.h>
+#include <svtools/svtdllapi.h>
+#include <o3tl/deleter.hxx>
+#include <memory>
+
+namespace svt
+{
+
+
+    //= TemplateFolderCache
+
+    class TemplateFolderCacheImpl;
+    /** allows to cache the state of the template directories of OOo
+        <p>Usually, this class is used together with an instance of the
+        <service scope="com.sun.star.frame">DocumentTemplates</service> service. It allows to scan the template folders
+        of the Office, and updates the configuration so that it reflects the most recent state of the folders.<br/>
+        As this is an expensive, the TemplateFolderCache has been introduced. It caches the state of the template
+        folders, and allows to determine if the DocumentTemplates service needs to be invoked to do the (much more expensive)
+        update.</p>
+    @example C++
+    <listing>
+        TemplateFolderCache aTemplateFolders;
+        if ( aTemplateFolders.needsUpdate() )
+        {
+            // store the current state
+            aCache.storeState();
+
+            // create the DocumentTemplates instance
+            Reference< XDocumentTemplates > xTemplates = ...;
+
+            // update the templates configuration
+            xTemplates->update();
+        }
+
+        // do anything which relies on a up-to-date template configuration
+    </listing>
+    */
+    class UNLESS_MERGELIBS(SVT_DLLPUBLIC) TemplateFolderCache
+    {
+    private:
+        std::unique_ptr<TemplateFolderCacheImpl, o3tl::default_delete<TemplateFolderCacheImpl>> m_pImpl;
+
+    public:
+        /** ctor.
+        @param _bAutoStoreState
+            Set this to <TRUE/> if you want the instance to automatically store the state of the template folders upon
+            destruction.<br/>
+            If set to <FALSE/>, you would explicitly need to call <method>storeState</method> to do this.<br/>
+            If the current state is not known (e.g. because you did not call needsUpdate, which retrieves it),
+            it is not retrieved in the dtor, regardless of the <arg>_bAutoStoreState</arg> flag.
+        */
+        TemplateFolderCache( bool _bAutoStoreState = false );
+        ~TemplateFolderCache( );
+
+        /** determines whether or not the template configuration needs to be updated
+        @return
+            <TRUE/> if the template configuration needs to be updated
+        */
+        bool    needsUpdate();
+
+        /** stores the current state of the template folders in the cache  */
+        void        storeState();
+    };
+
+
+}   // namespace svt
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */