/* -*- 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 .
 */

#include <utility>

#include "PresenterCurrentSlideObserver.hxx"

using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;

namespace sdext::presenter {

//===== PresenterCurrentSlideObserver =========================================

PresenterCurrentSlideObserver::PresenterCurrentSlideObserver (
    ::rtl::Reference<PresenterController> xPresenterController,
    const Reference<presentation::XSlideShowController>& rxSlideShowController)
    : PresenterCurrentSlideObserverInterfaceBase(m_aMutex),
      mpPresenterController(std::move(xPresenterController)),
      mxSlideShowController(rxSlideShowController)
{
    if( mpPresenterController.is() )
    {
        mpPresenterController->addEventListener(this);
    }

    if( mxSlideShowController.is() )
    {
        // Listen for events from the slide show controller.
        mxSlideShowController->addSlideShowListener(static_cast<XSlideShowListener*>(this));
    }
}

PresenterCurrentSlideObserver::~PresenterCurrentSlideObserver()
{
}

void SAL_CALL PresenterCurrentSlideObserver::disposing()
{
    // Disconnect form the slide show controller.
    if(mxSlideShowController.is())
    {
        mxSlideShowController->removeSlideShowListener(static_cast<XSlideShowListener*>(this));
        mxSlideShowController = nullptr;
    }

    if (mpPresenterController.is())
        mpPresenterController->removeEventListener(this);
}

//----- XSlideShowListener ----------------------------------------------------

void SAL_CALL PresenterCurrentSlideObserver::beginEvent (
    const Reference<animations::XAnimationNode>&)
{}

void SAL_CALL PresenterCurrentSlideObserver::endEvent (
    const Reference<animations::XAnimationNode>&)
{}

void SAL_CALL PresenterCurrentSlideObserver::repeat (
    const css::uno::Reference<css::animations::XAnimationNode>&,
    sal_Int32)
{}

void SAL_CALL PresenterCurrentSlideObserver::paused()
{
}

void SAL_CALL PresenterCurrentSlideObserver::resumed()
{
}

void SAL_CALL PresenterCurrentSlideObserver::slideEnded (sal_Bool bReverse)
{
    // Determine whether the new current slide (the one after the one that
    // just ended) is the slide past the last slide in the presentation,
    // i.e. the one that says something like "click to end presentation...".
    if (mxSlideShowController.is() && !bReverse)
        if (mxSlideShowController->getNextSlideIndex() < 0)
            if( mpPresenterController.is() )
                mpPresenterController->UpdateCurrentSlide(+1);
}

void SAL_CALL PresenterCurrentSlideObserver::hyperLinkClicked (const OUString &)
{
}

void SAL_CALL PresenterCurrentSlideObserver::slideTransitionStarted()
{
    if( mpPresenterController.is() )
        mpPresenterController->UpdateCurrentSlide(0);
}

void SAL_CALL PresenterCurrentSlideObserver::slideTransitionEnded()
{
}

void SAL_CALL PresenterCurrentSlideObserver::slideAnimationsEnded()
{
}

//----- XEventListener --------------------------------------------------------

void SAL_CALL PresenterCurrentSlideObserver::disposing (
    const lang::EventObject& rEvent)
{
    if (rEvent.Source == Reference<XInterface>(static_cast<XWeak*>(mpPresenterController.get())))
        dispose();
    else if (rEvent.Source == mxSlideShowController)
        mxSlideShowController = nullptr;
}

} // end of namespace ::sdext::presenter

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