svx/source/sidebar/SelectionChangeHandler.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.
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   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 #include <svx/sidebar/SelectionChangeHandler.hxx>
  20 #include <svx/sidebar/ContextChangeEventMultiplexer.hxx>
  21
  22 #include <com/sun/star/view/XSelectionSupplier.hpp>
  23
  24 #include <utility>
  25 #include <vcl/EnumContext.hxx>
  26
  27
  28 using namespace css;
  29 using namespace css::uno;
  30
  31 namespace svx::sidebar {
  32
  33 SelectionChangeHandler::SelectionChangeHandler (
  34     std::function<OUString()> aSelectionChangeCallback,
  35     const Reference<css::frame::XController>& rxController,
  36     const vcl::EnumContext::Context eDefaultContext)
  37     : maSelectionChangeCallback(std::move(aSelectionChangeCallback)),
  38       mxController(rxController),
  39       meDefaultContext(eDefaultContext),
  40       mbIsConnected(false)
  41 {
  42 }
  43
  44
  45 SelectionChangeHandler::~SelectionChangeHandler()
  46 {
  47 }
  48
  49
  50 void SAL_CALL SelectionChangeHandler::selectionChanged (const lang::EventObject&)
  51 {
  52     if (maSelectionChangeCallback)
  53     {
  54         const vcl::EnumContext::Context eContext (
  55             vcl::EnumContext::GetContextEnum(maSelectionChangeCallback()));
  56         ContextChangeEventMultiplexer::NotifyContextChange(
  57             mxController,
  58             eContext==vcl::EnumContext::Context::Unknown
  59                 ? meDefaultContext
  60                 : eContext);
  61     }
  62 }
  63
  64
  65 void SAL_CALL SelectionChangeHandler::disposing (const lang::EventObject&)
  66 {
  67 }
  68
  69
  70 void SelectionChangeHandler::disposing(std::unique_lock<std::mutex>&)
  71 {
  72     if (mbIsConnected)
  73         Disconnect();
  74 }
  75
  76
  77 void SelectionChangeHandler::Connect()
  78 {
  79     uno::Reference<view::XSelectionSupplier> xSupplier (mxController, uno::UNO_QUERY);
  80     if (xSupplier.is())
  81     {
  82         mbIsConnected = true;
  83         xSupplier->addSelectionChangeListener(this);
  84     }
  85 }
  86
  87
  88 void SelectionChangeHandler::Disconnect()
  89 {
  90     uno::Reference<view::XSelectionSupplier> xSupplier (mxController, uno::UNO_QUERY);
  91     if (xSupplier.is())
  92     {
  93         mbIsConnected = false;
  94         xSupplier->removeSelectionChangeListener(this);
  95     }
  96 }
  97
  98
  99 } // end of namespace svx::sidebar
 100
 101 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */