SelectionChangeHandler.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * 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
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#include <svx/sidebar/SelectionChangeHandler.hxx>
#include <svx/sidebar/ContextChangeEventMultiplexer.hxx>
 
#include <com/sun/star/view/XSelectionSupplier.hpp>
 
#include <utility>
#include <vcl/EnumContext.hxx>
 
 
using namespace css;
using namespace css::uno;
 
namespace svx::sidebar {
 
SelectionChangeHandler::SelectionChangeHandler (
    std::function<OUString()> aSelectionChangeCallback,
    const Reference<css::frame::XController>& rxController,
    const vcl::EnumContext::Context eDefaultContext)
    : maSelectionChangeCallback(std::move(aSelectionChangeCallback)),
      mxController(rxController),
      meDefaultContext(eDefaultContext),
      mbIsConnected(false)
{
}
 
 
SelectionChangeHandler::~SelectionChangeHandler()
{
}
 
 
void SAL_CALL SelectionChangeHandler::selectionChanged (const lang::EventObject&)
{
    if (maSelectionChangeCallback)
    {
        const vcl::EnumContext::Context eContext (
            vcl::EnumContext::GetContextEnum(maSelectionChangeCallback()));
        ContextChangeEventMultiplexer::NotifyContextChange(
            mxController,
            eContext==vcl::EnumContext::Context::Unknown
                ? meDefaultContext
                : eContext);
    }
}
 
 
void SAL_CALL SelectionChangeHandler::disposing (const lang::EventObject&)
{
}
 
 
void SelectionChangeHandler::disposing(std::unique_lock<std::mutex>&)
{
    if (mbIsConnected)
        Disconnect();
}
 
 
void SelectionChangeHandler::Connect()
{
    uno::Reference<view::XSelectionSupplier> xSupplier (mxController, uno::UNO_QUERY);
    if (xSupplier.is())
    {
        mbIsConnected = true;
        xSupplier->addSelectionChangeListener(this);
    }
}
 
 
void SelectionChangeHandler::Disconnect()
{
    uno::Reference<view::XSelectionSupplier> xSupplier (mxController, uno::UNO_QUERY);
    if (xSupplier.is())
    {
        mbIsConnected = false;
        xSupplier->removeSelectionChangeListener(this);
    }
}
 
 
} // end of namespace svx::sidebar
 
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