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, 239 insertions, 0 deletions

diff --git a/include/comphelper/configurationhelper.hxx b/include/comphelper/configurationhelper.hxx
new file mode 100644
index 000000000..162319316
--- /dev/null
+++ b/include/comphelper/configurationhelper.hxx
@@ -0,0 +1,239 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_COMPHELPER_CONFIGURATIONHELPER_HXX
+#define INCLUDED_COMPHELPER_CONFIGURATIONHELPER_HXX
+
+#include <com/sun/star/uno/Reference.h>
+#include <com/sun/star/uno/Any.hxx>
+#include <rtl/ustring.hxx>
+#include <comphelper/comphelperdllapi.h>
+#include <o3tl/typed_flags_set.hxx>
+
+namespace com::sun::star::uno { class XComponentContext; }
+namespace com::sun::star::uno { class XInterface; }
+
+namespace comphelper
+{
+    /** specify all possible modes, which can be used to open a configuration access.
+     *
+     *  @see    openConfig()
+     *  @see    readDirectKey()
+     *  @see    writeDirectKey()
+     */
+    enum class EConfigurationModes
+    {
+        /// opens configuration in read/write mode (without LAZY writing!)
+        Standard = 0,
+        /// configuration will be opened readonly
+        ReadOnly = 1,
+        /// all localized nodes will be interpreted as XInterface instead of interpreting it as atomic value nodes
+        AllLocales = 2
+    };
+
+
+}
+
+namespace o3tl
+{
+    template<> struct typed_flags<comphelper::EConfigurationModes> : is_typed_flags<comphelper::EConfigurationModes, 0x3> {};
+}
+
+namespace comphelper
+{
+
+class COMPHELPER_DLLPUBLIC ConfigurationHelper
+{
+public:
+    /** returns access to the specified configuration package.
+     *
+     *  This method should be used, if e.g. more than one request to the same
+     *  configuration package is needed. The configuration access can be cached
+     *  outside and used inbetween.
+     *
+     *  @param  rxContext
+     *          the uno service manager, which should be used to create the
+     *          configuration access.
+     *
+     *  @param  sPackage
+     *          the name of the configuration package.
+     *          e.g. <ul>
+     *                  <li>org.openoffice.Office.Common</li>
+     *                  <li>org.openoffice.Office.Common/Menu</li>
+     *               </ul>
+     *
+     *  @param  eMode
+     *          specify the open mode for the returned configuration access.
+     *          It's interpreted as a flag field and can be any useful combination
+     *          of values of EConfigurationModes.
+     *
+     *  @throw  Any exceptions the underlying configuration can throw.
+     *          E.g. css::uno::Exception if the configuration could not be opened.
+     */
+    static css::uno::Reference< css::uno::XInterface > openConfig(const css::uno::Reference< css::uno::XComponentContext >& rxContext,
+                                                                  const OUString&                                           sPackage,
+                                                                        EConfigurationModes                                 eMode   );
+
+
+    /** reads the value of an existing(!) configuration key,
+     *  which is searched relative to the specified configuration access.
+     *
+     *  This method must be used in combination with openConfig().
+     *  The cached configuration access must be provided here ... and
+     *  all operations are made relative to this access point.
+     *
+     *  @param  xCFG
+     *          the configuration root, where sRelPath should be interpreted.
+     *          as relative path
+     *
+     *  @param  sRelPath
+     *          path relative to xCFG parameter.
+     *
+     *  @param  sKey
+     *          the configuration node, where we should read the value.
+     *
+     *  @return [css.uno.Any]
+     *          the value of sKey.
+     *
+     *  @throw  Any exceptions the underlying configuration can throw.
+     *          E.g. css::container::NoSuchElementException if the specified
+     *          key does not exists.
+     */
+    static css::uno::Any readRelativeKey(const css::uno::Reference< css::uno::XInterface >& xCFG    ,
+                                         const OUString&                            sRelPath,
+                                         const OUString&                            sKey    );
+
+
+    /** writes a new value for an existing(!) configuration key,
+     *  which is searched relative to the specified configuration access.
+     *
+     *  This method must be used in combination with openConfig().
+     *  The cached configuration access must be provided here ... and
+     *  all operations are made relative to this access point.
+     *
+     *  @param  xCFG
+     *          the configuration root, where sRelPath should be interpreted.
+     *          as relative path
+     *
+     *  @param  sRelPath
+     *          path relative to xCFG parameter.
+     *
+     *  @param  sKey
+     *          the configuration node, where we should write the new value.
+     *
+     *  @param  aValue
+     *          the new value for sKey.
+     *
+     *  @throw  Any exceptions the underlying configuration can throw.
+     *          E.g. css::container::NoSuchElementException if the specified
+     *          key does not exists or css::uno::Exception if the provided configuration
+     *          access does not allow writing for this key.
+     */
+    static void writeRelativeKey(const css::uno::Reference< css::uno::XInterface >& xCFG    ,
+                                 const OUString&                            sRelPath,
+                                 const OUString&                            sKey    ,
+                                 const css::uno::Any&                              aValue  );
+
+
+    /** it checks if the specified set node exists ... or create an empty one
+     *  otherwise.
+     *
+     *  This method must be used in combination with openConfig().
+     *  The cached configuration access must be provided here ... and
+     *  all operations are made relative to this access point.
+     *
+     *  Further this method must be used only with configuration set's.
+     *  Atomic keys can't be "created"... they "exist every time".
+     *
+     *  @param  xCFG
+     *          the configuration root, where sRelPathToSet should be interpreted
+     *          as relative path.
+     *
+     *  @param  sRelPathToSet
+     *          path relative to xCFG parameter.
+     *
+     *  @param  sSetNode
+     *          the set node, which should be checked if its exists ...
+     *          or which should be created with default values.
+     *
+     *  @return A reference to the found (or new created) set node.
+     *          Can't be NULL .. in such case an exception occurs!
+     *
+     *  @throw  Any exceptions the underlying configuration can throw.
+     *          E.g. css::uno::Exception if the provided configuration
+     *          access does not allow writing for this set.
+     */
+    static css::uno::Reference< css::uno::XInterface > makeSureSetNodeExists(const css::uno::Reference< css::uno::XInterface >& xCFG         ,
+                                                                             const OUString&                            sRelPathToSet,
+                                                                             const OUString&                            sSetNode     );
+
+
+    /** commit all changes made on the specified configuration access.
+     *
+     *  This method must be used in combination with openConfig().
+     *  The cached configuration access must be provided here.
+     *
+     *  @param  xCFG
+     *          the configuration root, where changes should be committed.
+     *
+     *  @throw  Any exceptions the underlying configuration can throw.
+     *          E.g. css::uno::Exception if the provided configuration
+     *          access does not allow writing for this set.
+     */
+    static void flush(const css::uno::Reference< css::uno::XInterface >& xCFG);
+
+
+    /** does the same then openConfig() & readRelativeKey() together.
+     *
+     * This method should be used for reading one key at one code place only.
+     * Because it opens the specified configuration package, reads the key and
+     * closes the configuration again.
+     *
+     * So it's not very useful to use this method for reading multiple keys at the same time.
+     * (Excepting these keys exists inside different configuration packages ...))
+     */
+    static css::uno::Any readDirectKey(const css::uno::Reference< css::uno::XComponentContext >&    rxContext,
+                                       const OUString&                                       sPackage,
+                                       const OUString&                                       sRelPath,
+                                       const OUString&                                       sKey    ,
+                                             EConfigurationModes                             eMode   );
+
+
+    /** does the same then openConfig() / writeRelativeKey() & flush() together.
+     *
+     * This method should be used for writing one key at one code place only.
+     * Because it opens the specified configuration package, writes the key, flush
+     * all changes and closes the configuration again.
+     *
+     * So it's not very useful to use this method for writing multiple keys at the same time.
+     * (Excepting these keys exists inside different configuration packages ...))
+     */
+    static void writeDirectKey(const css::uno::Reference< css::uno::XComponentContext >&    rxContext,
+                               const OUString&                                       sPackage,
+                               const OUString&                                       sRelPath,
+                               const OUString&                                       sKey    ,
+                               const css::uno::Any&                                  aValue  ,
+                                     EConfigurationModes                             eMode   );
+};
+
+} // namespace comphelper
+
+#endif // INCLUDED_COMPHELPER_CONFIGURATIONHELPER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */