desktop/source/app/configinit.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "configinit.hxx"
  21
  22 #include "desktop.hrc"
  23 #include "app.hxx"
  24 #include <comphelper/processfactory.hxx>
  25 #include <uno/current_context.hxx>
  26 #include <cppuhelper/implbase1.hxx>
  27 #include <rtl/ustrbuf.hxx>
  28 #include <osl/diagnose.h>
  29 #include <stdio.h>
  30 #include <com/sun/star/task/InteractionHandler.hpp>
  31
  32 // ----------------------------------------------------------------------------
  33
  34 namespace uno           = ::com::sun::star::uno;
  35 namespace lang          = ::com::sun::star::lang;
  36 using uno::UNO_QUERY;
  37
  38 // ----------------------------------------------------------------------------
  39
  40 // must be aligned with configmgr/source/misc/configinteractionhandler
  41 static char const CONFIG_ERROR_HANDLER[] = "configuration.interaction-handler";
  42 // ----------------------------------------------------------------------------
  43
  44 // ----------------------------------------------------------------------------
  45 // ConfigurationErrorHandler
  46 // ----------------------------------------------------------------------------
  47
  48 namespace
  49 {
  50     typedef uno::Reference< uno::XCurrentContext > CurrentContext;
  51     class SimpleCurrentContext : public cppu::WeakImplHelper1< uno::XCurrentContext >
  52     {
  53         CurrentContext m_xChainedContext;
  54     public:
  55         explicit
  56         SimpleCurrentContext(const CurrentContext & xChainedContext)
  57         : m_xChainedContext(xChainedContext)
  58         {}
  59
  60         void install()      { uno::setCurrentContext(this); }
  61         void deinstall()    { uno::setCurrentContext(m_xChainedContext); }
  62
  63         uno::Any getChainedValueByName( OUString const & aName) const
  64         {
  65             return m_xChainedContext.is()
  66                             ? m_xChainedContext->getValueByName(aName)
  67                             : uno::Any();
  68         }
  69
  70         // XCurrentContext
  71         virtual uno::Any SAL_CALL
  72             getValueByName( OUString const & aName)
  73                 throw (uno::RuntimeException);
  74     };
  75
  76     uno::Any SAL_CALL
  77         SimpleCurrentContext::getValueByName( OUString const & aName)
  78             throw (uno::RuntimeException)
  79     {
  80         return getChainedValueByName(aName);
  81     }
  82
  83 }
  84
  85 // ----------------------------------------------------------------------------
  86 class ConfigurationErrorHandler::Context : public SimpleCurrentContext
  87 {
  88 public:
  89     Context()
  90     : SimpleCurrentContext( uno::getCurrentContext() )
  91     {
  92     }
  93
  94     ~Context()
  95     {
  96     }
  97
  98     // XCurrentContext
  99     virtual uno::Any SAL_CALL
 100         getValueByName( OUString const & aName)
 101             throw (uno::RuntimeException);
 102
 103 private:
 104     InteractionHandler  m_xHandler;
 105 };
 106
 107 //------------------------------------------------------------------------------
 108 uno::Any SAL_CALL ConfigurationErrorHandler::Context::getValueByName( OUString const & aName)
 109         throw (uno::RuntimeException)
 110 {
 111     if ( aName == CONFIG_ERROR_HANDLER )
 112     {
 113         if ( !m_xHandler.is() )
 114             m_xHandler = ConfigurationErrorHandler::getDefaultInteractionHandler();
 115         return uno::Any( m_xHandler );
 116     }
 117     return SimpleCurrentContext::getValueByName( aName );
 118 }
 119
 120 //------------------------------------------------------------------------------
 121 ConfigurationErrorHandler::~ConfigurationErrorHandler()
 122 {
 123     deactivate();
 124 }
 125
 126 //------------------------------------------------------------------------------
 127 /// installs the handler into the current context
 128 void ConfigurationErrorHandler::activate()
 129 {
 130     if (!m_pContext)
 131     {
 132         m_pContext = new Context;
 133         m_pContext->acquire();
 134     }
 135     m_pContext->install();
 136 }
 137
 138 //------------------------------------------------------------------------------
 139 /// deinstalls the handler from the current context, restoring the previous context
 140 void ConfigurationErrorHandler::deactivate()
 141 {
 142     if (m_pContext)
 143     {
 144         m_pContext->deinstall();
 145         m_pContext->release();
 146         m_pContext = 0;
 147     }
 148 }
 149 //------------------------------------------------------------------------------
 150
 151 ConfigurationErrorHandler::InteractionHandler ConfigurationErrorHandler::getDefaultInteractionHandler()
 152 {
 153     uno::Reference< uno::XComponentContext > xContext = ::comphelper::getProcessComponentContext();
 154     InteractionHandler xHandler( com::sun::star::task::InteractionHandler::createWithParent(xContext, 0), UNO_QUERY );
 155     return xHandler;
 156 }
 157 //------------------------------------------------------------------------------
 158
 159
 160
 161 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */